[osm2pgrouting] 09/24: Imported Upstream version 2.1.0

Sebastiaan Couwenberg sebastic at moszumanska.debian.org
Fri Apr 29 18:47:35 UTC 2016


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sebastic pushed a commit to branch master
in repository osm2pgrouting.

commit f96428517253c40b974862e3796f3267769c1ca2
Author: Bas Couwenberg <sebastic at xs4all.nl>
Date:   Fri Apr 29 19:35:24 2016 +0200

    Imported Upstream version 2.1.0
---
 .gitignore                          |    6 +-
 AUTHORS.txt                         |    3 +
 CMakeLists.txt                      |   28 +-
 Makefile.orig                       |   29 -
 NEWS                                |   50 +
 Readme.md                           |   85 +-
 cmake/FindPostgreSQL.cmake          |  253 +-
 src/Class.cpp                       |   26 +-
 src/Class.h                         |   47 +-
 src/Configuration.cpp               |   38 +-
 src/Configuration.h                 |   26 +-
 src/ConfigurationParserCallback.cpp |  156 +-
 src/ConfigurationParserCallback.h   |   76 +-
 src/Export2DB.cpp                   | 1163 ++++---
 src/Export2DB.h                     |   85 +-
 src/Node.cpp                        |   23 +-
 src/Node.h                          |   57 +-
 src/OSMDocument.cpp                 |  266 +-
 src/OSMDocument.h                   |   70 +-
 src/OSMDocumentParserCallback.cpp   |  555 ++-
 src/OSMDocumentParserCallback.h     |   82 +-
 src/Relation.cpp                    |   30 +-
 src/Relation.h                      |   61 +-
 src/Type.cpp                        |   30 +-
 src/Type.h                          |   57 +-
 src/Way.cpp                         |   18 +-
 src/Way.h                           |   21 +-
 src/XMLParser.cpp                   |   66 +-
 src/XMLParser.h                     |   56 +-
 src/math_functions.cpp              |   20 +-
 src/math_functions.h                |    2 +-
 src/osm2pgrouting.cpp               |  353 +-
 src/prog_options.cpp                |  107 +
 src/prog_options.h                  |   32 +
 src/stdafx.h                        |   25 -
 src/utils.cpp                       |   19 +
 src/utils.h                         |    2 +
 tools/cpplint.py                    | 6321 +++++++++++++++++++++++++++++++++++
 tools/data/getdata.sh               |   14 +
 tools/doxygen/Doxyfile              | 2312 +++++++++++++
 tools/doxygen/DoxygenLayout.xml     |  194 ++
 tools/doxygen/Makefile              |    5 +
 42 files changed, 11018 insertions(+), 1851 deletions(-)

diff --git a/.gitignore b/.gitignore
index 498eec4..b749c06 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,14 @@
-tools
+build
 bin/*
 Sample/*
+build
 osm2pgrouting
 tools/vagrant/packaging.sh
 *.o
+*.out
+*.osm
 *~
 .project
 .cproject
 .vagrant
+run.sh
diff --git a/AUTHORS.txt b/AUTHORS.txt
index 2b36a1d..d1d7bbc 100644
--- a/AUTHORS.txt
+++ b/AUTHORS.txt
@@ -5,3 +5,6 @@ Anton Patrushev
 Daniel Kastl
 Jordan Anderson
 J Kishore Kumar
+Regina Obe
+Sarthak Agarwal
+Virginia Vergara
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6b0402b..8c31186 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,19 +7,33 @@ set (SHARE_DIR "/usr/share/osm2pgrouting")
 FIND_PACKAGE(PostgreSQL REQUIRED)
 FIND_PACKAGE(EXPAT REQUIRED)
 FIND_PACKAGE(Boost REQUIRED)
+FIND_PACKAGE(Boost 1.40 COMPONENTS program_options REQUIRED )
 
 FILE(GLOB SRC "${CMAKE_SOURCE_DIR}/src/*.cpp" "${CMAKE_SOURCE_DIR}/src/*.h")
 
-set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64")
+#set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64 -std=c++0x -fPIC -O2 -g -Wall -Wconversion -pedantic -fmax-errors=10 -Wextra  -frounding-math -Wno-deprecated")
+set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FILE_OFFSET_BITS=64 -std=c++0x -O2")
 
-INCLUDE_DIRECTORIES(src ${PostgreSQL_INCLUDE_DIRS} ${EXPAT_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
-link_directories(${PostgreSQL_LIBRARY_DIRS})
+#INCLUDE_DIRECTORIES(src ${POSTGRESQL_INCLUDE_DIR} ${EXPAT_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS})
+
+#ADD_EXECUTABLE(osm2pgrouting ${SRC})
+#TARGET_LINK_LIBRARIES(osm2pgrouting ${POSTGRESQL_LIBRARIES} ${EXPAT_LIBRARIES})
+
+message(STATUS "POSTGRESQL_INCLUDE_DIR: ${POSTGRESQL_INCLUDE_DIR}")
+message(STATUS "EXPAT_INCLUDE_DIRS: ${EXPAT_INCLUDE_DIRS}")
+message(STATUS "Boost_INCLUDE_DIRS: ${Boost_INCLUDE_DIRS}")
+message(STATUS "Boost_INCLUDE_DIR: ${Boost_INCLUDE_DIR}")
+message(STATUS "POSTGRESQL_LIBRARIES: ${POSTGRESQL_LIBRARIES}")
+message(STATUS "Boost_LIBRARIES: ${boost_LIBRARIES}")
+
+INCLUDE_DIRECTORIES(src ${POSTGRESQL_INCLUDE_DIR} ${EXPAT_INCLUDE_DIRS} ${Boost_INCLUDE_DIRS} ${Boost_INCLUDE_DIR})
 
 ADD_EXECUTABLE(osm2pgrouting ${SRC})
-TARGET_LINK_LIBRARIES(osm2pgrouting ${PostgreSQL_LIBRARIES} ${EXPAT_LIBRARIES})
+
+TARGET_LINK_LIBRARIES(osm2pgrouting ${POSTGRESQL_LIBRARIES} ${EXPAT_LIBRARIES} ${Boost_LIBRARIES} )
 
 INSTALL(TARGETS osm2pgrouting
-  RUNTIME DESTINATION "/usr/share/bin"
+  RUNTIME DESTINATION "/usr/bin"
 )
 
 INSTALL(FILES
@@ -28,3 +42,7 @@ INSTALL(FILES
     "${CMAKE_SOURCE_DIR}/mapconfig.xml"
     "${CMAKE_SOURCE_DIR}/mapconfig_for_cars.xml"
     DESTINATION "${SHARE_DIR}")
+
+
+#INCLUDE_DIRECTORIES( ${Boost_INCLUDE_DIR} )
+#TARGET_LINK_LIBRARIES( osm2pgrouting ${Boost_LIBRARIES} )
diff --git a/Makefile.orig b/Makefile.orig
deleted file mode 100644
index 8dc5529..0000000
--- a/Makefile.orig
+++ /dev/null
@@ -1,29 +0,0 @@
-CC = g++
-
-CFLAGS = -ggdb3 -D_FILE_OFFSET_BITS=64
-
-OBJ = bin/Export2DB.o bin/math_functions.o bin/Node.o bin/OSMDocumentParserCallback.o bin/Way.o bin/OSMDocument.o bin/Type.o bin/Class.o bin/Configuration.o bin/ConfigurationParserCallback.o bin/Relation.o bin/XMLParser.o
-
-INC_DIRS = -I./ -Isrc -I/usr/include/pgsql -I/usr/include/postgresql -I/usr/local/pgsql/include
-
-LIB_DIRS = -L/usr/local/pgsql/lib -L/usr/local/lib/pgsql
-
-LIBS = -lexpat -lpq
-
-MAIN = src/osm2pgrouting.cpp
-
-all: osm2pgrouting
-
-osm2pgrouting : bin $(OBJ) $(MAIN)
-	$(CC) $(CFLAGS) $(MAIN) $(OBJ) $(INC_DIRS) $(LIB_DIRS) $(LIBS) -o bin/$@
-	
-
-bin:
-	mkdir -p bin
-  
-bin/%.o : src/%.cpp
-	$(CC) -o $@ $(INC_DIRS) $(CFLAGS) -c $<
-
-clean:
-	rm -rf bin
-	rm -f osm2pgrouting
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..febac42
--- /dev/null
+++ b/NEWS
@@ -0,0 +1,50 @@
+
+osm2pgRouting 2.1.0-alpha
+
+   New "ways" table structure:
+      Column       |           Type            |  Modifications
+-------------------+---------------------------+----------------
+ gid               | bigint                    | 
+ class_id          | integer                   | 
+ length            | double precision          |
+ length_m          | double precision          | new column
+ name              | text                      |
+ source            | bigint                    |
+ target            | bigint                    |
+ x1                | double precision          | 
+ y1                | double precision          | 
+ x2                | double precision          | 
+ y2                | double precision          | 
+ cost              | double precision          | name changed from 'to_cost'
+ reverse_cost      | double precision          |  
+ cost_s            | double precision          | new column
+ reverse_cost_s    | double precision          | new column 
+ rule              | text                      | 
+ one_way           | integer                   | new column
+ maxspeed_forward  | integer                   | 
+ maxspeed_backward | integer                   | 
+ osm_id            | bigint                    | 
+ source_osm        | bigint                    | new column
+ target_osm        | bigint                    | new column
+ priority          | double precision          | 
+ the_geom          | geometry(LineString,4326) | 
+
+     New "ways_vertices_pgr" table structure
+  Column  |         Type         |  Modifications
+----------+----------------------+----------------------------------------------------------------
+ id       | bigint               | 
+ osm_id   | bigint               | new column
+ cnt      | integer              | 
+ chk      | integer              | 
+ ein      | integer              | 
+ eout     | integer              | 
+ lon      | numeric(11,8)        | new column
+ lat      | numeric(11,8)        | new column
+ the_geom | geometry(Point,4326) | 
+Indexes:
+    "ways_vertices_pgr_pkey" PRIMARY KEY, btree (id)
+    "vertex_id" UNIQUE CONSTRAINT, btree (osm_id)
+    "ways_vertices_pgr_gdx" gist (the_geom)
+    "ways_vertices_pgr_osm_id_idx" btree (osm_id)
+
+
diff --git a/Readme.md b/Readme.md
index 5657f28..5e5d1d2 100644
--- a/Readme.md
+++ b/Readme.md
@@ -29,28 +29,87 @@ make
 make install
 ```
 
+If you have libraries installed in non-standard locations, you might need to pass in parameters to cmake.  Commonly useful parameters are
+
+Install some prerqeuisites
+
+```
+sudo apt-get install expat
+sudo apt-get install libexpat1-dev
+```
+
+CMAKE options:
+
+    -DBOOST_ROOT:PATH=/path/to/boost  folder that contains include, lib, bin directories for boost
+    
+    -DEXPATH_INCLUDE_DIR:PATH=/path/to/expat/include  the include folder for where your expat is installed
+    
+    -DPOSTGRESQL_INCLUDE_DIR:PATH=/path/to/postgresql/include  the include folder for postgresql development headers
+    
+    
+A cmake with custom options might look something like
+
+```
+cmake -DBOOST_ROOT:PATH=/local/projects/rel-boost-1.58.0 \
+    -DPOSTGRESQL_INCLUDE_DIR:PATH=/local/projects/rel-pg94/include  -Bbuild
+```
+
 ## How to use
 
+Prepare the database:
+
+```
+createdb routing
+psql -dbname routing -c 'CREATE EXTENSION postgis'
+psql -dbname routing -c 'CREATE EXTENSION pgRouting'
+```
+
 Start the program like this:
 
 ```
-osm2pgrouting -file your-OSM-XML-File.osm -conf mapconfig.xml -dbname routing -user postgres -clean
+osm2pgrouting --f your-OSM-XML-File.osm --conf mapconfig.xml --dbname routing --username postgres --clean
+```
+
+Do incremental adition of data without using --clean
+
+```
+osm2pgrouting --f next-OSM-XML-File.osm --conf mapconfig.xml --dbname routing --username postgres
 ```
 
+
 A complete list of arguments are:
 
 ```
-required: 
--file <file>  			-- name of your osm xml file
--dbname <dbname> 		-- name of your database
--user <user> 			-- name of the user, which have write access to the database
--conf <file> 			-- name of your configuration xml file
+Allowed options:
+
+
+Allowed options:
+
+Help:
+  --help                Produce help message for this version.
+  -v [ --version ]      Print version string
+
+General:
+  -f [ --file ] arg                     REQUIRED: Name of the osm file.
+  -c [ --conf ] arg (=/usr/share/osm2pgrouting/mapconfig.xml)
+                                        Name of the configuration xml file.
+  --schema arg                          Database schema to put tables.
+                                          blank: defaults to default schema 
+                                                dictated by PostgreSQL 
+                                                search_path.
+  --prefix arg                          Prefix added at the beginning of the 
+                                        table names.
+  --suffix arg                          Suffix added at the end of the table 
+                                        names.
+  --addnodes                            Import the osm_nodes table.
+  --clean                               Drop previously created tables.
+
+Database options:
+  -d [ --dbname ] arg               Name of your database (Required).
+  -U [ --username ] arg (=postgres) Name of the user, which have write access 
+                                    to the database.
+  -h [ --host ] arg (=localhost)    Host of your postgresql database.
+  -p [ --port ] arg (=5432)         db_port of your database.
+  -W [ --password ] arg             Password for database access.
 
-optional:
--host <host>  			-- host of your postgresql database (default: 127.0.0.1)
--port <port> 			-- port of your database (default: 5432)
--prefixtables <prefix> 	-- add at the beginning of table names
--passwd <passwd> 		-- password for database access
--clean 					-- drop previously created tables
--skipnodes				-- do not load nodes into the node table (reduces runtime) 
 ```
diff --git a/cmake/FindPostgreSQL.cmake b/cmake/FindPostgreSQL.cmake
index 6455c99..a163233 100644
--- a/cmake/FindPostgreSQL.cmake
+++ b/cmake/FindPostgreSQL.cmake
@@ -1,181 +1,74 @@
-# Find the PostgreSQL installation.
+# - Find PostgreSQL
+# Find the PostgreSQL includes and client library
+# This module defines
+#  POSTGRESQL_INCLUDE_DIR, where to find POSTGRESQL.h
+#  POSTGRESQL_LIBRARIES, the libraries needed to use POSTGRESQL.
+#  POSTGRESQL_FOUND, If false, do not try to use PostgreSQL.
+
+# Copyright (c) 2006, Jaroslaw Staniek, <js at iidea.pl>
 #
-# ----------------------------------------------------------------------------
-# Usage:
-# In your CMakeLists.txt file do something like this:
-# ...
-# # PostgreSQL
-# FIND_PACKAGE(PostgreSQL)
-# ...
-# if( PostgreSQL_FOUND )
-#   include_directories(${PostgreSQL_INCLUDE_DIRS})
-#   link_directories(${PostgreSQL_LIBRARY_DIRS})
-# endif( PostgreSQL_FOUND )
-# ...
-# Remember to include ${PostgreSQL_LIBRARIES} in the target_link_libraries() statement.
-#
-#
-# In Windows, we make the assumption that, if the PostgreSQL files are installed, the default directory
-# will be C:\Program Files\PostgreSQL.
-#
-
-#=============================================================================
-# Copyright 2004-2009 Kitware, Inc.
-#
-# Distributed under the OSI-approved BSD License (the "License");
-# see accompanying file Copyright.txt for details.
-#
-# This software is distributed WITHOUT ANY WARRANTY; without even the
-# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-# See the License for more information.
-#=============================================================================
-# (To distribute this file outside of CMake, substitute the full
-#  License text for the above reference.)
-
-# ----------------------------------------------------------------------------
-# History:
-# This module is derived from the module originally found in the VTK source tree.
-#
-# ----------------------------------------------------------------------------
-# Note:
-# PostgreSQL_ADDITIONAL_VERSIONS is a variable that can be used to set the
-# version mumber of the implementation of PostgreSQL.
-# In Windows the default installation of PostgreSQL uses that as part of the path.
-# E.g C:\Program Files\PostgreSQL\8.4.
-# Currently, the following version numbers are known to this module:
-# "9.1" "9.0" "8.4" "8.3" "8.2" "8.1" "8.0"
-#
-# To use this variable just do something like this:
-# set(PostgreSQL_ADDITIONAL_VERSIONS "9.2" "8.4.4")
-# before calling FIND_PACKAGE(PostgreSQL) in your CMakeLists.txt file.
-# This will mean that the versions you set here will be found first in the order
-# specified before the default ones are searched.
-#
-# ----------------------------------------------------------------------------
-# You may need to manually set:
-#  PostgreSQL_INCLUDE_DIR  - the path to where the PostgreSQL include files are.
-#  PostgreSQL_LIBRARY_DIR  - The path to where the PostgreSQL library files are.
-# If FindPostgreSQL.cmake cannot find the include files or the library files.
-#
-# ----------------------------------------------------------------------------
-# The following variables are set if PostgreSQL is found:
-#  PostgreSQL_FOUND         - Set to true when PostgreSQL is found.
-#  PostgreSQL_INCLUDE_DIRS  - Include directories for PostgreSQL
-#  PostgreSQL_LIBRARY_DIRS  - Link directories for PostgreSQL libraries
-#  PostgreSQL_LIBRARIES     - The PostgreSQL libraries.
-#
-# ----------------------------------------------------------------------------
-# If you have installed PostgreSQL in a non-standard location.
-# (Please note that in the following comments, it is assumed that <Your Path>
-# points to the root directory of the include directory of PostgreSQL.)
-# Then you have three options.
-# 1) After CMake runs, set PostgreSQL_INCLUDE_DIR to <Your Path>/include and
-#    PostgreSQL_LIBRARY_DIR to wherever the library pq (or libpq in windows) is
-# 2) Use CMAKE_INCLUDE_PATH to set a path to <Your Path>/PostgreSQL<-version>. This will allow find_path()
-#    to locate PostgreSQL_INCLUDE_DIR by utilizing the PATH_SUFFIXES option. e.g. In your CMakeLists.txt file
-#    SET(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "<Your Path>/include")
-# 3) Set an environment variable called ${PostgreSQL_ROOT} that points to the root of where you have
-#    installed PostgreSQL, e.g. <Your Path>.
-#
-# ----------------------------------------------------------------------------
-
-set(PostgreSQL_INCLUDE_PATH_DESCRIPTION "top-level directory containing the PostgreSQL include directories. E.g /usr/local/include/PostgreSQL/8.4 or C:/Program Files/PostgreSQL/8.4/include")
-set(PostgreSQL_INCLUDE_DIR_MESSAGE "Set the PostgreSQL_INCLUDE_DIR cmake cache entry to the ${PostgreSQL_INCLUDE_PATH_DESCRIPTION}")
-set(PostgreSQL_LIBRARY_PATH_DESCRIPTION "top-level directory containing the PostgreSQL libraries.")
-set(PostgreSQL_LIBRARY_DIR_MESSAGE "Set the PostgreSQL_LIBRARY_DIR cmake cache entry to the ${PostgreSQL_LIBRARY_PATH_DESCRIPTION}")
-set(PostgreSQL_ROOT_DIR_MESSAGE "Set the PostgreSQL_ROOT system variable to where PostgreSQL is found on the machine E.g C:/Program Files/PostgreSQL/8.4")
-
-
-set(PostgreSQL_ROOT_DIRECTORIES $ENV{PostgreSQL_ROOT})
-if(PostgreSQL_ROOT_DIRECTORIES)
-  file(TO_CMAKE_PATH ${PostgreSQL_ROOT_DIRECTORIES} PostgreSQL_ROOT_DIRECTORIES)
-endif(PostgreSQL_ROOT_DIRECTORIES)
-
-set(PostgreSQL_KNOWN_VERSIONS ${PostgreSQL_ADDITIONAL_VERSIONS}
-    "9.1" "9.0" "8.4" "8.3" "8.2" "8.1" "8.0")
-
-# Define additional search paths for root directories.
-if ( WIN32 )
-  foreach (suffix ${PostgreSQL_KNOWN_VERSIONS} )
-    set(PostgreSQL_ADDITIONAL_SEARCH_PATHS ${PostgreSQL_ADDITIONAL_SEARCH_PATHS} "C:/Program Files/PostgreSQL/${suffix}" )
-  endforeach(suffix)
-endif( WIN32 )
-set( PostgreSQL_ROOT_DIRECTORIES
-   ${PostgreSQL_ROOT_DIRECTORIES}
-   ${PostgreSQL_ROOT}
-   ${PostgreSQL_ADDITIONAL_SEARCH_PATHS}
-)
-
-#
-# Look for an installation.
-#
-find_path(PostgreSQL_INCLUDE_DIR
-  NAMES libpq-fe.h
-  PATHS
-   # Look in other places.
-   ${PostgreSQL_ROOT_DIRECTORIES}
-  PATH_SUFFIXES
-    postgresql
-    include
-  # Help the user find it if we cannot.
-  DOC "The ${PostgreSQL_INCLUDE_DIR_MESSAGE}"
-)
-
-# The PostgreSQL library.
-set (PostgreSQL_LIBRARY_TO_FIND pq)
-# Setting some more prefixes for the library
-set (PostgreSQL_LIB_PREFIX "")
-if ( WIN32 )
-  set (PostgreSQL_LIB_PREFIX ${PostgreSQL_LIB_PREFIX} "lib")
-  set ( PostgreSQL_LIBRARY_TO_FIND ${PostgreSQL_LIB_PREFIX}${PostgreSQL_LIBRARY_TO_FIND})
-endif()
-
-find_library( PostgreSQL_LIBRARY
- NAMES ${PostgreSQL_LIBRARY_TO_FIND}
- PATHS
-   ${PostgreSQL_ROOT_DIRECTORIES}
- PATH_SUFFIXES
-   lib
-)
-get_filename_component(PostgreSQL_LIBRARY_DIR ${PostgreSQL_LIBRARY} PATH)
-
-# Did we find anything?
-set( PostgreSQL_FOUND 0 )
-if ( EXISTS "${PostgreSQL_INCLUDE_DIR}" AND EXISTS "${PostgreSQL_LIBRARY_DIR}" )
-  set( PostgreSQL_FOUND 1 )
-else ( EXISTS "${PostgreSQL_INCLUDE_DIR}" AND EXISTS "${PostgreSQL_LIBRARY_DIR}" )
-  if ( POSTGRES_REQUIRED )
-    message( FATAL_ERROR "PostgreSQL is required. ${PostgreSQL_ROOT_DIR_MESSAGE}" )
-  endif ( POSTGRES_REQUIRED )
-endif (EXISTS "${PostgreSQL_INCLUDE_DIR}" AND EXISTS "${PostgreSQL_LIBRARY_DIR}" )
-
-# Now try to get the include and library path.
-if(PostgreSQL_FOUND)
-
-  if(EXISTS "${PostgreSQL_INCLUDE_DIR}")
-    set(PostgreSQL_INCLUDE_DIRS
-      ${PostgreSQL_INCLUDE_DIR}
-    )
-  endif(EXISTS "${PostgreSQL_INCLUDE_DIR}")
-
-  if(EXISTS "${PostgreSQL_LIBRARY_DIR}")
-    set(PostgreSQL_LIBRARY_DIRS
-      ${PostgreSQL_LIBRARY_DIR}
-    )
-    set(PostgreSQL_LIBRARIES ${PostgreSQL_LIBRARY_TO_FIND})
-  endif(EXISTS "${PostgreSQL_LIBRARY_DIR}")
-
-  #message("Final PostgreSQL include dir: ${PostgreSQL_INCLUDE_DIRS}")
-  #message("Final PostgreSQL library dir: ${PostgreSQL_LIBRARY_DIRS}")
-  #message("Final PostgreSQL libraries:   ${PostgreSQL_LIBRARIES}")
-endif(PostgreSQL_FOUND)
-
-if(NOT PostgreSQL_FOUND)
-  if(NOT PostgreSQL_FIND_QUIETLY)
-    message(STATUS "PostgreSQL was not found. ${PostgreSQL_DIR_MESSAGE}")
-  else(NOT PostgreSQL_FIND_QUIETLY)
-    if(PostgreSQL_FIND_REQUIRED)
-      message(FATAL_ERROR "PostgreSQL was not found. ${PostgreSQL_DIR_MESSAGE}")
-    endif(PostgreSQL_FIND_REQUIRED)
-  endif(NOT PostgreSQL_FIND_QUIETLY)
-endif(NOT PostgreSQL_FOUND)
+# Redistribution and use is allowed according to the terms of the BSD license.
+# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
+
+
+if(POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
+    set(POSTGRESQL_FOUND TRUE)
+
+else(POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
+
+    find_program(POSTGRESQL_PG_CONFIG NAMES pg_config
+        PATHS
+        /usr/lib/postgresql/*/bin/
+        )
+    message(STATUS "POSTGRESQL_PG_CONFIG is " ${POSTGRESQL_PG_CONFIG})
+
+    if(POSTGRESQL_PG_CONFIG)
+        execute_process(
+            COMMAND ${POSTGRESQL_PG_CONFIG} --includedir
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+            OUTPUT_VARIABLE T_POSTGRESQL_INCLUDE_DIR)
+    endif(POSTGRESQL_PG_CONFIG)
+
+    find_path(POSTGRESQL_INCLUDE_DIR libpq-fe.h
+        ${T_POSTGRESQL_INCLUDE_DIR}
+        /usr/include
+        /usr/include/pgsql
+        /usr/local/include/pgsql
+        /usr/include/postgresql
+        /usr/include/postgresql/*
+        /usr/local/include/postgresql
+        /usr/local/include/postgresql/*
+        $ENV{ProgramFiles}/PostgreSQL/*/include
+        $ENV{SystemDrive}/PostgreSQL/*/include
+        )
+
+    if(POSTGRESQL_PG_CONFIG)
+        execute_process(
+            COMMAND ${POSTGRESQL_PG_CONFIG} --libdir
+            OUTPUT_STRIP_TRAILING_WHITESPACE
+            OUTPUT_VARIABLE T_POSTGRESQL_LIB_DIR)
+    endif(POSTGRESQL_PG_CONFIG)
+
+    find_library(POSTGRESQL_LIBRARIES NAMES pq libpq
+        ${T_POSTGRESQL_LIB_DIR}
+        PATHS
+        /usr/lib
+        /usr/local/lib
+        /usr/lib/postgresql
+        $ENV{ProgramFiles}/PostgreSQL/*/lib
+        $ENV{SystemDrive}/PostgreSQL/*/lib
+        )
+
+    if(POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
+        set(POSTGRESQL_FOUND TRUE)
+        message(STATUS "POSTGRESQL_INCLUDE_DIR: ${POSTGRESQL_INCLUDE_DIR}")
+        message(STATUS "POSTGRESQL_LIBRARIES: ${POSTGRESQL_LIBRARIES}")
+        include_directories(${POSTGRESQL_INCLUDE_DIR})
+    else(POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
+        set(POSTGRESQL_FOUND FALSE)
+        message(STATUS "PostgreSQL not found.")
+    endif(POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
+
+    mark_as_advanced(POSTGRESQL_INCLUDE_DIR POSTGRESQL_LIBRARIES)
+
+endif(POSTGRESQL_INCLUDE_DIR AND POSTGRESQL_LIBRARIES)
diff --git a/src/Class.cpp b/src/Class.cpp
index b46b102..5784080 100644
--- a/src/Class.cpp
+++ b/src/Class.cpp
@@ -16,25 +16,25 @@
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
-***************************************************************************/
-                  
-#include "stdafx.h"
-#include "Class.h"
+***************************************************************************/                  
+#include <string>
+#include "./Class.h"
 
-namespace osm
-{
 
-Class::Class(long long id, std::string name, double priority, int default_maxspeed)
+namespace osm2pgr {
+
+Class::Class(
+    int64_t id,
+    std::string name,
+    double priority,
+    int default_maxspeed
+    )
 :
   id(id),
   name(name),
   priority(priority),
-  default_maxspeed(default_maxspeed)
-{
+  default_maxspeed(default_maxspeed) {
 }
 
-Class::~Class()
-{
-}
 
-} // end namespace osm
+}  // end namespace osm2pgr
diff --git a/src/Class.h b/src/Class.h
index 15cec05..bb728b7 100644
--- a/src/Class.h
+++ b/src/Class.h
@@ -17,31 +17,32 @@
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
-                  
-#ifndef CLASS_H
-#define CLASS_H
+#ifndef SRC_CLASS_H_
+#define SRC_CLASS_H_
 
-namespace osm
-{
+#include <string>
 
-class Class
-{
-public:
-	long long id;
-	std::string name;
-	double priority;
-	int default_maxspeed;
-public:
-	/** 
-	 *	Constructor
-	 *	@param id ID of the class
-	 *	@param name name of the class
-	 */
-	Class( long long id, std::string name, double priority,int default_maxspeed);
-	//! Destructor
-	~Class();
+namespace osm2pgr {
+
+class Class {
+ public:
+    int64_t id;
+    std::string name;
+    double priority;
+    int default_maxspeed;
+ public:
+    /** 
+     *    Constructor
+     *    @param id ID of the class
+     *    @param name name of the class
+     */
+    Class(
+        int64_t id,
+        std::string name,
+        double priority,
+        int default_maxspeed);
 };
 
 
-} // end namespace osm
-#endif
+}  // end namespace osm
+#endif  // SRC_CLASS_H_
diff --git a/src/Configuration.cpp b/src/Configuration.cpp
index 81cc839..6a69153 100644
--- a/src/Configuration.cpp
+++ b/src/Configuration.cpp
@@ -18,36 +18,30 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#include "stdafx.h"
 #include "Configuration.h"
 #include "Type.h"
 #include "Class.h"
 
 
-namespace osm
-{
+namespace osm2pgr {
 
-Configuration::Configuration()
-{
-}
+	Configuration::Configuration() {
+	}
 
-Configuration::~Configuration()
-{
-	ez_mapdelete( m_Types );
-}
-void Configuration::AddType( Type* t )
-{
-	m_Types[t->name] = t;
-}
+	Configuration::~Configuration() {
+		ez_mapdelete( m_Types );
+	}
 
-Type* Configuration::FindType( std::string name ) 
-{
-	return m_Types[name];
-}
+	void Configuration::AddType( Type* t ) {
+		m_Types[t->name] = t;
+	}
 
-Class* Configuration::FindClass( std::string typeName, std::string className ) 
-{
-	return m_Types[typeName]->m_Classes[className];
-}
+	Type* Configuration::FindType( std::string name ) {
+		return m_Types[name];
+	}
+
+	Class* Configuration::FindClass( std::string typeName, std::string className ) {
+		return m_Types[typeName]->m_Classes[className];
+	}
 
 } // end namespace osm
diff --git a/src/Configuration.h b/src/Configuration.h
index 5bbe21b..7d8b9bc 100644
--- a/src/Configuration.h
+++ b/src/Configuration.h
@@ -24,27 +24,22 @@
 #include "Type.h"
 #include "Class.h"
 
-namespace osm
-{
+namespace osm2pgr {
 
 template< class Map >
-inline void ez_mapdelete( Map& c )
-{
-	typename Map::iterator it( c.begin() );
-	typename Map::iterator last( c.end() );
-	while( it!=last )
-	{
+void ez_mapdelete( Map& c ) {
+	auto it(c.begin());
+	auto last(c.end());
+	while(it!=last) {
 		delete (*it++).second;
 	}
 }
 
 template< class Vector >
-inline void ez_vectordelete( Vector& c )
-{
-	typename Vector::iterator it( c.begin() );
-	typename Vector::iterator last( c.end() );
-	while( it!=last )
-	{
+void ez_vectordelete( Vector& c ) {
+	auto it( c.begin() );
+	auto last( c.end() );
+	while( it!=last ) {
 		delete (*it++);
 	}
 }
@@ -58,7 +53,6 @@ class Configuration
 public:
 	//! Map, which saves the parsed types
 	std::map<std::string, Type*> m_Types;
-	//std::map<long long, Type*> m_Types;
 public:
 
 	//! Constructor
@@ -72,5 +66,5 @@ public:
 };
 
 
-} // end namespace osm
+} // end namespace osm2pgr
 #endif
diff --git a/src/ConfigurationParserCallback.cpp b/src/ConfigurationParserCallback.cpp
index 3383375..f373a54 100644
--- a/src/ConfigurationParserCallback.cpp
+++ b/src/ConfigurationParserCallback.cpp
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                      *
+ *   gentoo.murray at gmail.com                                                  *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -17,100 +17,78 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
+#include <string>
+#include <boost/lexical_cast.hpp>
+#include "./ConfigurationParserCallback.h"
+#include "./OSMDocument.h"
+#include "./Configuration.h"
+#include "./Type.h"
+#include "./Class.h"
 
-#include "stdafx.h"
-#include "ConfigurationParserCallback.h"
-#include "OSMDocument.h"
-#include "Configuration.h"
-#include "Type.h"
-#include "Class.h"
+namespace osm2pgr {
 
-namespace osm
-{
-	
-	
 /**
-	Parser callback for configuration files
+    Parser callback for configuration files
 */
-void ConfigurationParserCallback::StartElement( const char *name, const char** atts )
-{
-	//std::cout << "SE for <" << name << ">" << std::endl;
-	if( strcmp(name,"class") == 0 )
-	{
-		if (atts != NULL)
-		{
-			long long id=-1;
-			std::string name;
-			double priority = 1;
-			int maxspeed=50;
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* key = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( key, "id" ) == 0 )
-				{
-					id = atoll( value );
-					//std::cout << "class id = " << id << std::endl;
+void ConfigurationParserCallback::StartElement(
+    const char *name,
+    const char** atts) {
+    // std::cout << "SE for <" << name << ">" << std::endl;
+    if (strcmp(name, "class") == 0) {
+        if (atts != NULL) {
+            int64_t id = -1;
+            std::string name;
+            double priority  =  1;
+            int maxspeed = 50;
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* key = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(key, "id") == 0) {
+                    id = atoll(value);
+                    // std::cout << "class id = " << id << std::endl;
+                } else if (strcmp(key, "name") == 0) {
+                    name = value;
+                    // std::cout << "class name = " << name << std::endl;
+                } else if (strcmp(key, "priority") == 0) {
+                    priority = boost::lexical_cast<double>(value);
+                } else if (strcmp(key, "maxspeed") == 0) {
+                    maxspeed = boost::lexical_cast<int>(value);
+                }
+            }
+            if (id > 0 && !name.empty()) {
+                m_pActType->AddClass(new Class(id, name, priority, maxspeed));
+            }
+        }
+    } else if (strcmp(name, "type") == 0) {
+        if (atts != NULL) {
+            int64_t id(0);
+            std::string name;
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* key = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(key, "id") == 0) {
+                    id = atoll(value);
 
-				}
-				else if( strcmp( key, "name" ) == 0 )
-				{
-					name = value;
-					//std::cout << "class name = " << name << std::endl;
-				}else if(strcmp(key, "priority") == 0){
-					priority = boost::lexical_cast<double>(value);
-				}else if(strcmp(key, "maxspeed") == 0){
-					maxspeed = boost::lexical_cast<int>(value);
-				}
-			}
-			if( id>0 && !name.empty() )
-			{
-				m_pActType->AddClass( new Class( id, name, priority, maxspeed ) );
-				//std::cout << "class id = "<<id<<" name = " << name << " added to type name=" << m_pActType->name << std::endl;
-			}
-		}
-	}
-	else if( strcmp(name,"type") == 0 )
-	{
-		if (atts != NULL)
-		{
-			long long id;
-			std::string name;
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* key = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( key, "id" ) == 0 )
-				{
-					id = atoll( value );
-
-				}
-				else if( strcmp( key, "name" ) == 0 )
-				{
-					name = value;
-				}
-			}
-			if( !name.empty() )
-			{
-			    m_pActType = new Type( id, name );
-			}
-		}
-	}
-	else if( strcmp(name,"configuration") == 0 )
-	{
-	}
+                } else if (strcmp(key, "name") == 0) {
+                    name = value;
+                }
+            }
+            if (!name.empty()) {
+                m_pActType = new Type(id, name);
+            }
+        }
+    } else if (strcmp(name, "configuration") == 0) {
+    }
 }
 
 
-void ConfigurationParserCallback::EndElement( const char* name )
-{
-	if( strcmp(name,"type") == 0 )
-	{
-	    m_rDocument.AddType( m_pActType );
-	    m_pActType = 0;
-	}
+void ConfigurationParserCallback::EndElement(const char* name) {
+    if (strcmp(name, "type") == 0) {
+        m_rDocument.AddType(m_pActType);
+        m_pActType = 0;
+    }
 }
 
-}; // end namespace osm
+}  // end namespace osm2pgr
diff --git a/src/ConfigurationParserCallback.h b/src/ConfigurationParserCallback.h
index 856e5f6..3f1216a 100644
--- a/src/ConfigurationParserCallback.h
+++ b/src/ConfigurationParserCallback.h
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                      *
+ *   gentoo.murray at gmail.com                                                  *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -18,59 +18,51 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef CONFIGURATIONPARSERCALLBACK_H
-#define CONFIGURATIONPARSERCALLBACK_H
+#ifndef SRC_CONFIGURATIONPARSERCALLBACK_H_
+#define SRC_CONFIGURATIONPARSERCALLBACK_H_
 
 #include <string.h>
 #include "XMLParser.h"
 
 
-namespace osm
-{
+namespace osm2pgr {
 
-class Configuration;
-class Type;
+    class Configuration;
+    class Type;
 
-/**
-	Parser callback for configuration files
-*/
-class ConfigurationParserCallback : public xml::XMLParserCallback
-{	
-	//! reference to a Configuration object
-	Configuration& m_rDocument;
-	//! current type, which will be parsed
-	Type* m_pActType;
+    /**
+      Parser callback for configuration files
+      */
+    class ConfigurationParserCallback : public xml::XMLParserCallback{
+        //! reference to a Configuration object
+        Configuration& m_rDocument;
 
-	virtual void StartElement( const char *name, const char** atts );
+        //! current type, which will be parsed
+        Type* m_pActType;
 
-	virtual void EndElement( const char* name );
+        virtual void StartElement(const char *name, const char** atts);
 
-	virtual void SetContent( const char* ch, int len)
-	{
-	}
+        virtual void EndElement(const char* name);
 
-	virtual void ProcessingInstruction( const char* target, const char* data )
-	{
-	}
+#if 0
+        virtual void SetContent(const char* ch, int len)=0;
 
-	virtual void CDataBlockInternal(const char *value, int len)
-	{
-	}
+        virtual void ProcessingInstruction(const char* target, const char* data)=0;
 
+        virtual void CDataBlockInternal(const char *value, int len)=0;
+#endif
 
-public:
-	/**
-	 *	Constructor
-	 */
-	ConfigurationParserCallback( Configuration& doc )
-	:
-		m_rDocument( doc ),
-		m_pActType( 0 )
-	{
-	}
-
-}; // class
+        public:
+        /**
+         *    Constructor
+         */
+        ConfigurationParserCallback(Configuration& doc)
+            :
+                m_rDocument(doc),
+                m_pActType(0) {
+                }
+    };  // class
 
-}; // end namespace osm
+}  // end namespace osm
 
-#endif
+#endif  // SRC_CONFIGURATIONPARSERCALLBACK_H_
diff --git a/src/Export2DB.cpp b/src/Export2DB.cpp
index 477b10b..95a2951 100644
--- a/src/Export2DB.cpp
+++ b/src/Export2DB.cpp
@@ -1,6 +1,8 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                    *
+ *   gentoo.murray at gmail.com                                               *
+ *   Copyright (C) 2015 by Vicky Vergara                                   *
+ *   vicky_vergara at hotmail.com                                             *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -18,240 +20,515 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#include "stdafx.h"
 #include "Export2DB.h"
 #include "boost/algorithm/string/replace.hpp"
-
-#define TO_STR(x)	boost::lexical_cast<std::string>(x)
-
-using namespace std;
-
-Export2DB::Export2DB(std::string host, std::string user, std::string dbname, std::string port, std::string passwd, std::string tables_prefix)
-:mycon(0)
-{
-    this->conninf="host="+host+" user="+user+" dbname="+ dbname +" port="+port;
-    this->tables_prefix = tables_prefix;
-    if(!passwd.empty())
-        this->conninf+=" password="+passwd;
+#include "prog_options.h"
+#include <unistd.h>
+#include <iostream>
+
+#define TO_STR(x)    boost::lexical_cast<std::string>(x)
+
+
+Export2DB::Export2DB(const  po::variables_map &vm)
+:     mycon(0),
+      conninf ( "host=" + vm["host"].as<std::string>()
+            + " user=" +  vm["username"].as<std::string>()
+            + " dbname=" + vm["dbname"].as<std::string>()
+            + " port=" + vm["port"].as<std::string>() ),
+    tables_schema( vm["schema"].as<std::string>() ),
+    tables_prefix( vm["prefix"].as<std::string>() ),
+    tables_suffix( vm["suffix"].as<std::string>() ) {
+
+        if(!vm["password"].as<std::string>().empty())
+            this->conninf+=" password=" + vm["password"].as<std::string>();
+
+    create_types = std::string(
+               " type_id integer PRIMARY KEY,"
+               " name text"
+    );
+
+    create_way_tag = std::string(
+           " class_id integer,"
+           " way_id bigint"
+    );
+
+    create_nodes =std::string(
+        " node_id bigserial PRIMARY KEY,"
+        " osm_id bigint,"
+        " lon decimal(11,8),"
+        " lat decimal(11,8),"
+        " numOfUse int"
+    );
+
+        create_vertices =std::string(
+        " id bigserial PRIMARY KEY,"
+        " osm_id bigint,"
+        " cnt integer,"
+        " chk integer,"
+        " ein integer,"
+        " eout integer,"
+        " lon decimal(11,8),"
+        " lat decimal(11,8),"
+        " CONSTRAINT vertex_id UNIQUE(osm_id)"
+    );
+        create_ways =std::string(
+
+            " gid bigserial PRIMARY KEY,"
+            " class_id integer not null,"
+            " length double precision,"
+            " length_m double precision,"
+            " name text,"
+            " source bigint,"
+            " target bigint,"
+            " x1 double precision,"
+            " y1 double precision,"
+            " x2 double precision,"
+            " y2 double precision,"
+            " cost double precision,"
+            " reverse_cost double precision,"
+            " cost_s double precision, "
+            " reverse_cost_s double precision,"
+            " rule text,"
+            " one_way int, "  // 0 unknown, 1 yes(normal direction), 2 (2 way),
+                              // -1 reversed (1 way but geometry is reversed)
+                              // 3 - reversible (one way street but direction chnges on time)
+            " maxspeed_forward integer,"
+            " maxspeed_backward integer,"
+            " osm_id bigint,"
+            " source_osm bigint,"
+            " target_osm bigint,"
+            " priority double precision DEFAULT 1"
+        );
+        create_relations =std::string(
+           "relation_id bigint,"
+           " type_id integer,"
+           " class_id integer,"
+           " name text"
+        );
+        create_relations_ways =std::string(
+
+           " relation_id bigint,"
+           " way_id bigint,"
+           " type character varying(200)"
+       ); 
+       create_classes = std::string(
+           " class_id integer PRIMARY KEY,"
+           " type_id integer,"
+           " name text,"
+           " priority double precision,"
+           " default_maxspeed integer"
+       ); 
+
+}  // constructor
+
+Export2DB::~Export2DB() {
+    PQfinish(mycon);
 }
 
-Export2DB::~Export2DB()
-{
-	PQfinish(mycon);
-}
+int Export2DB::connect() {
 
-int Export2DB::connect()
-{
-	cout << conninf<< endl;
-	//mycon =PQconnectdb("user=postgres dbname=template1 hostaddr=127.0.0.1 port=5432");
-	mycon =PQconnectdb(conninf.c_str());
-
-	ConnStatusType type =PQstatus(mycon);
-		if(type==CONNECTION_BAD)
-		{
-			cout << "connection failed"<< endl;
-			return 1;
-		}
-		else
-		{
-			cout << "connection success"<< endl;
-			return 0;
-		}
+    cout << conninf<< endl;
+    mycon =PQconnectdb(conninf.c_str());
+
+    ConnStatusType type =PQstatus(mycon);
+        if(type==CONNECTION_BAD) {
+            cout << "connection failed: "<< PQerrorMessage(mycon) << endl;
+            return 1;
+        } else {
+            cout << "connection success"<< endl;
+            return 0;
+        }
 /***
       CONNECTION_STARTED: Waiting for connection to be made.
       CONNECTION_MADE: Connection OK; waiting to send.
       CONNECTION_AWAITING_RESPONSE: Waiting for a response from the postmaster.
       CONNECTION_AUTH_OK: Received authentication; waiting for backend start-up.
-	  CONNECTION_SETENV: Negotiating environment.
+      CONNECTION_SETENV: Negotiating environment.
 ***/
 }
 
-void Export2DB::createTables()
-{
-    std::string create_nodes("CREATE TABLE " + tables_prefix + "nodes (id bigint PRIMARY KEY, lon decimal(11,8), lat decimal(11,8), numOfUse int);");
-	PGresult *result = PQexec(mycon, create_nodes.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "create Nodes failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-    } else {
-        std::cout << "Nodes table created" << std::endl;
+
+/*!
+
+ CREATE TEMP TABLE table (
+    table_description
+ );
+
+*/
+bool Export2DB::createTempTable (const std::string &table_description,
+                            const std::string &table) const {
+    std::string sql = 
+	"CREATE TEMP TABLE " + table + "("    // + schema + "." + prefix etc
+        + table_description + ")";
+
+    PGresult *result = PQexec(mycon, sql.c_str());
+    bool created = (PQresultStatus(result) == PGRES_COMMAND_OK);
+
+    PQclear(result);
+    return created;
+}
+
+/*!
+
+ CREATE TABLE table (
+    table_description,
+    constraint
+ );
+
+*/
+bool Export2DB::has_postGIS() const{
+    std::string sql = "SELECT * FROM pg_extension WHERE extname = 'postgis'";
+    PGresult *result = PQexec(mycon, sql.c_str());
+    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
+        std::cout << PQresultErrorMessage(result) << "\n";
+        throw;
     }
+    return  static_cast<bool>(PQntuples(result));
+}
 
-	// gid cannot be "bigint" right now because pgRouting doesn't support "bigint"
-    std::string create_ways("CREATE TABLE " + tables_prefix + "ways (gid integer, class_id integer not null, length double precision, name text, x1 double precision, y1 double precision, x2 double precision, y2 double precision, reverse_cost double precision, rule text, to_cost double precision, maxspeed_forward integer, maxspeed_backward integer, osm_id bigint, priority double precision DEFAULT 1);"
-            + " SELECT AddGeometryColumn('" + tables_prefix + "ways','the_geom',4326,'LINESTRING',2);");
-	result = PQexec(mycon, create_ways.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << PQresultStatus(result);
-        std::cerr << "create ways failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-    } else {
-        std::cout << "Ways table created" << std::endl;
+bool Export2DB::createTable(const std::string &table_description,
+                             const std::string &table,
+                            const std::string &constraint) const {
+    std::string sql = 
+	"CREATE TABLE " + table + "("    
+        + table_description + constraint + ");";
+
+    PGresult *result = PQexec(mycon, sql.c_str());
+    bool created = (PQresultStatus(result) == PGRES_COMMAND_OK);
+
+    std::cout << (created? "Creating '" : " Exists: '") << table <<"': OK\n" ;
+
+    PQclear(result);
+    return created;
+}
+
+
+void Export2DB::addGeometry(
+        const std::string &schema, const std::string &table,
+        const std::string &geometry_type) const {
+    std::cout << "   Adding Geometry: ";
+    /** PostGIS requires the schema to be specified as separate arg if not default user's schema **/
+    std::string sql = 
+               + " SELECT AddGeometryColumn(" + ( schema == "" ? "" : "'" + schema + "' ," ) + " '" 
+               + table + "'," 
+               + "'the_geom', 4326, '" + geometry_type + "',2 );";
+
+    PGresult *result = PQexec(mycon, sql.c_str());
+
+    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
+        std::cout << PQresultErrorMessage(result) << "<-------\n";
+        throw std::string(PQresultErrorMessage(result)) ;
     }
+    PQclear(result);
+}
 
-    std::string create_types("CREATE TABLE " + tables_prefix + "types (id integer PRIMARY KEY, name text);");
-	result = PQexec(mycon, create_types.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "create types failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-	} else {
-        std::cout << "Types table created" << std::endl;
+void Export2DB::addTempGeometry(
+             const std::string &table,
+             const std::string &geometry_type) const {
+    std::string sql = 
+         " SELECT AddGeometryColumn('" 
+            + table + "'," 
+            + "'the_geom', 4326, '" + geometry_type + "',2 );";
+
+    PGresult *result = PQexec(mycon, sql.c_str());
+    if (PQresultStatus(result) != PGRES_TUPLES_OK) {
+        std::cout << PQresultErrorMessage(result);
+        throw std::string(PQresultErrorMessage(result)) ;
     }
+    PQclear(result);
+}
 
-    std::string create_way_tag("CREATE TABLE " + tables_prefix + "way_tag (type_id integer, class_id integer, way_id bigint);");
-	result = PQexec(mycon, create_way_tag.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "create way_tag failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-	} else {
-        std::cout << "Way_tag table created" << std::endl;
+
+void Export2DB::create_gindex(const std::string &index, const std::string &table) const {
+    std::string sql = (
+         " CREATE INDEX " 
+             + index + "_gdx ON " 
+             + table + " using gist(the_geom);" );
+    PGresult *result = PQexec(mycon, sql.c_str());
+
+    if (PQresultStatus(result) != PGRES_COMMAND_OK) {
+        std::cout << PQresultErrorMessage(result);
+        throw std::string(PQresultErrorMessage(result)) ;
     }
+    PQclear(result);
+}
 
-    std::string create_relations("CREATE TABLE " + tables_prefix + "relations (relation_id bigint, type_id integer, class_id integer, name text);");
-	result = PQexec(mycon, create_relations.c_str());
-    if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "create relations failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-    } else {
-        std::cout << "Relations table created" << std::endl;
+void Export2DB::create_idindex(const std::string &colname, const std::string &table) const {
+    std::string sql = (
+         " CREATE INDEX " 
+         "     ON " + table + 
+         "     USING btree ( " + colname + " );" );
+    PGresult *result = PQexec(mycon, sql.c_str());
+    //TODO check missing
+    PQclear(result);
+}
+
+///////////////////////
+void Export2DB::createTables() const{
+    // the following are particular of the file tables
+    if (createTable( create_vertices, addSchema( full_table_name( "ways_vertices_pgr" ) )  )) {
+        addGeometry(default_tables_schema(), full_table_name( "ways_vertices_pgr" ), "POINT" );
+        create_gindex( full_table_name("ways_vertices_pgr"), addSchema( full_table_name("ways_vertices_pgr") ));
+        create_idindex( "osm_id", addSchema( full_table_name("ways_vertices_pgr") ));
     }
 
-    std::string create_relations_ways("CREATE TABLE " + tables_prefix + "relation_ways (relation_id bigint, way_id bigint, type character varying(200));");
-    result = PQexec(mycon, create_relations_ways.c_str());
-    if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "create relation_ways failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-    } else {
-        std::cout << "Relation_ways table created" << std::endl;
+    if (createTable( create_ways, addSchema( full_table_name("ways") ) )) {
+        addGeometry( default_tables_schema(), full_table_name("ways"), "LINESTRING" );
+        create_gindex( full_table_name("ways"), addSchema( full_table_name("ways") ));
+        create_idindex(  "source_osm", addSchema( full_table_name("ways") ));
+        create_idindex(  "target_osm", addSchema( full_table_name("ways") ));
+        create_idindex(  "source", addSchema( full_table_name("ways") ));
+        create_idindex(  "target", addSchema( full_table_name("ways") ));
     }
 
-    std::string create_classes("CREATE TABLE " + tables_prefix + "classes (id integer PRIMARY KEY, type_id integer, name text, cost double precision, priority double precision, default_maxspeed integer);");
-	result = PQexec(mycon, create_classes.c_str());
-    if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "create classes failed: "
-        << PQerrorMessage(mycon)
-        << std::endl;
-        PQclear(result);
-    } else {
-		std::cout << "Classes table created" << std::endl;
-	}
+    createTable( create_relations_ways, addSchema( full_table_name("relations_ways") ) );
+
+    // the following are general tables
+    if ( createTable( create_nodes,
+                     addSchema( "osm_nodes"),
+                     ", CONSTRAINT node_id UNIQUE(osm_id)") )
+        addGeometry(default_tables_schema(), "osm_nodes", "POINT" );
+    createTable( create_relations,  addSchema( "osm_relations") );
+    createTable( create_way_tag, addSchema(  "osm_way_tags" ) );
+    createTable( create_types, addSchema(  "osm_way_types" ) );
+    createTable( create_classes, addSchema( "osm_way_classes" ) );
 }
 
-void Export2DB::dropTables()
-{
-    std::string drop_tables( "DROP TABLE " + tables_prefix + "ways;"
-                            + " DROP TABLE " + tables_prefix + "nodes;"
-                            + " DROP TABLE " + tables_prefix + "types;"
-                            + " DROP TABLE " + tables_prefix + "classes;"
-                            + " DROP TABLE " + tables_prefix + "way_tag;"
-                            + " DROP TABLE " + tables_prefix + "relations;"
-                            + " DROP TABLE " + tables_prefix + "relation_ways;");
-	PGresult *result = PQexec(mycon, drop_tables.c_str());
+
+
+void Export2DB::dropTable(const std::string &table) const {
+    std::string drop_tables( "DROP TABLE IF EXISTS " +  table);
+    PGresult *result = PQexec(mycon, drop_tables.c_str());
+    PQclear(result);
+}   
+
+
+
+void Export2DB::dropTables() const {
+    dropTable( addSchema( full_table_name("ways") ) );
+    dropTable( addSchema( full_table_name("ways_vertices_pgr") ) );
+    dropTable( addSchema( full_table_name("relations_ways") ) );
+
+    // we are not deleting general tables osm_
 }
 
-void Export2DB::exportNodes(std::map<long long, Node*>& nodes)
-{
-	std::map<long long, Node*>::iterator it(nodes.begin());
-	std::map<long long, Node*>::iterator last(nodes.end());
-    std::string copy_nodes( "COPY " + tables_prefix + "nodes(id, lon, lat, numofuse) FROM STDIN");
-	//PGresult* res = PQexec(mycon, tables_prefix.c_str());
-	PGresult* res = PQexec(mycon, copy_nodes.c_str());
-	PQclear(res);
-	while(it!=last)
-	{
-		Node* node = (*it++).second;
-		std::string row_data = TO_STR(node->id);
-		row_data += "\t";
-		row_data += TO_STR(node->lon);
-		row_data += "\t";
-		row_data += TO_STR(node->lat);
-		row_data += "\t";
-		row_data += TO_STR(node->numsOfUse);
-		row_data += "\n";
-		PQputline(mycon, row_data.c_str());
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
+/*!
+
+Inserts the data into a temporary table
+Inserts the data to the final table only if
+**osm_id**
+doesnt exist already
+
+*/
+void Export2DB::exportNodes(const std::map<long long, Node*> &nodes) const {
+    std::cout << "    Processing " <<  nodes.size() <<  " nodes"  << ": ";
+
+    if (createTempTable( create_nodes, "__nodes_temp" ))
+       addTempGeometry( "__nodes_temp", "POINT" );
+
+    std::string nodes_columns(" osm_id, lon, lat, numofuse, the_geom " );   
+    std::string copy_nodes( "COPY __nodes_temp (" + nodes_columns + ") FROM STDIN");
+    PGresult* q_result = PQexec(mycon, copy_nodes.c_str());
+
+    if ( PQresultStatus(q_result) == PGRES_COPY_IN) {
+        for (const auto &n : nodes)
+        {
+            Node* node = n.second;
+            std::string row_data = TO_STR(node->id);
+            row_data += "\t";
+            row_data += TO_STR(node->lon);
+            row_data += "\t";
+            row_data += TO_STR(node->lat);
+            row_data += "\t";
+            row_data += TO_STR(node->numsOfUse);
+            row_data += "\t";
+            row_data += "srid=4326; POINT(" + TO_STR(node->lon) + " " + TO_STR(node->lat) + ")";
+            row_data += "\n";
+            PQputline(mycon, row_data.c_str());
+        }
+        PQputline(mycon, "\\.\n");
+        PQendcopy(mycon);
+    }
+    PQclear(q_result);
+
+    std::string insert_into_nodes(
+         " WITH data AS ( "
+         " SELECT a.* "
+         " FROM  __nodes_temp a LEFT JOIN  " + addSchema( "osm_nodes" ) + " b USING (osm_id) WHERE (b.osm_id IS NULL))"
+
+         " INSERT INTO "  + addSchema("osm_nodes") +  
+          "( " + nodes_columns + " ) "
+         " (SELECT " + nodes_columns + " FROM data); ");
+    q_result = PQexec(mycon, insert_into_nodes.c_str());
+    PQclear(q_result);
+    std::cout << " Inserted: " << PQcmdTuples(q_result) << "\n";
+
+    dropTable("__nodes_temp");
+}
+
+/*!
+
+*/
+void Export2DB::fill_vertices_table(const std::string &table, const std::string &vertices_tab) const {
+    //std::cout << "Filling '" << vertices_tab << "' based on '" << table <<"'\n";
+    std::string sql(
+        "WITH osm_vertex AS ( "
+             "(select source_osm as osm_id, x1 as lon, y1 as lat FROM " + table + " where source is NULL)"
+             " union "
+             "(select target_osm as osm_id, x2 as lon, y2 as lat FROM " + table + " where target is NULL)"
+          ") , "
+	  " data1 AS (SELECT osm_id, lon, lat FROM (SELECT DISTINCT * from osm_vertex) a "
+          ") "
+          " INSERT INTO " + vertices_tab + " (osm_id, lon, lat, the_geom) (SELECT data1.*, ST_SetSRID(ST_Point(lon, lat), 4326) FROM data1)");
+
+    PGresult* q_result = PQexec(mycon, sql.c_str());
+    std::cout << "Vertices inserted " << PQcmdTuples(q_result);
+#if 0
+    if (PQresultStatus(q_result) == PGRES_COMMAND_OK) 
+         std::cout << " OK " << PQcmdStatus(q_result) << std::endl;
+    else
+         std::cout  << "   " << PQresultErrorMessage( q_result )  << std::endl;
+#endif
+    PQclear(q_result);
 }
 
-void Export2DB::exportRelations(std::vector<Relation*>& relations, Configuration* config)
+
+
+
+
+void Export2DB::fill_source_target(const std::string &table, const std::string &vertices_tab) const {
+//    std::cout << "    Filling 'source' column of '" << table << "': ";
+    std::string sql1(
+        " UPDATE " + table + " AS w"
+        " SET source = v.id "
+        " FROM " + vertices_tab + " AS v"
+        " WHERE w.source is NULL and w.source_osm = v.osm_id;");
+    PGresult* q_result = PQexec(mycon, sql1.c_str());
+//    std::cout << " Updated: " << PQcmdTuples(q_result) << " rows\n";
+    PQclear(q_result);
+
+//    std::cout << "    Filling 'target' column of '" << table << "': ";
+    std::string sql2(
+        " UPDATE " + table + " AS w"
+        " SET target = v.id "
+        " FROM " + vertices_tab + " AS v"
+        " WHERE w.target is NULL and w.target_osm = v.osm_id;");
+    q_result = PQexec(mycon, sql2.c_str());
+//    std::cout << " Updated: " << PQcmdTuples(q_result) << " rows\n";
+    PQclear(q_result);
+
+//    std::cout << "    Filling other columns of '" << table << "': ";
+    std::string sql3(
+        " UPDATE " + table + 
+        " SET  length_m = st_length(geography(ST_Transform(the_geom, 4326))),"
+        "      cost_s = CASE "
+        "           WHEN one_way = -1 THEN -st_length(geography(ST_Transform(the_geom, 4326))) / (maxspeed_forward * 5 / 18)"
+        "           ELSE st_length(geography(ST_Transform(the_geom, 4326))) / (maxspeed_backward * 5 / 18)"
+        "             END, "
+        "      reverse_cost_s = CASE "
+        "           WHEN one_way = 1 THEN -st_length(geography(ST_Transform(the_geom, 4326))) / (maxspeed_backward * 5 / 18)"
+        "           ELSE st_length(geography(ST_Transform(the_geom, 4326))) / (maxspeed_backward * 5 / 18)"
+        "             END "
+	" WHERE length_m IS NULL;");
+    q_result = PQexec(mycon, sql3.c_str());
+//    std::cout << " Updated: " << PQcmdTuples(q_result) << " rows\n";
+    PQclear(q_result);
+
+}
+
+
+void Export2DB::exportRelations(const std::vector<Relation*> &relations, Configuration *config) const
 {
-	std::vector<Relation*>::iterator it_relation( relations.begin() );
-	std::vector<Relation*>::iterator last_relation( relations.end() );
-    std::string copy_relations( "COPY " + tables_prefix + "relations(relation_id, type_id, class_id, name) FROM STDIN");
-	PGresult* res = PQexec(mycon, copy_relations.c_str());
-	PQclear(res);
-	while( it_relation!=last_relation )
-	{
-		Relation* relation = *it_relation++;
-		std::map<std::string, std::string>::iterator it_tag( relation->m_Tags.begin() );
-		std::map<std::string, std::string>::iterator last_tag( relation->m_Tags.end() );
-		while( it_tag!=last_tag )
-		{
-			std::pair<std::string, std::string> pair = *it_tag++;
-			std::string row_data = TO_STR(relation->id);
-			row_data += "\t";
-			row_data += TO_STR(config->FindType(pair.first)->id);
-			row_data += "\t";
-			row_data += TO_STR(config->FindClass(pair.first, pair.second)->id);
-			row_data += "\t";
-			if(!relation->name.empty())
-  		{
-  			std::string escaped_name = relation->name;
-  			boost::replace_all(escaped_name, "\t", "\\\t");
-				row_data += escaped_name;
-			}
-			row_data += "\n";
-			PQputline(mycon, row_data.c_str());
-		}
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
-
-	// Second round of iteration is needed to copy relation_ways
-	it_relation = relations.begin();
-    std::string copy_relation_ways( "COPY " + tables_prefix + "relation_ways(relation_id, way_id) FROM STDIN");
-	res = PQexec(mycon, copy_relation_ways.c_str());
-	PQclear(res);
-	while( it_relation!=last_relation )
-	{
-		Relation* relation = *it_relation++;
-		std::vector<long long>::iterator it_way( relation->m_WayRefs.begin() );
-		std::vector<long long>::iterator last_way( relation->m_WayRefs.end() );
-
-		while( it_way!=last_way )
-		{
-			long long way_id = *it_way++;
-			std::string row_data = TO_STR(relation->id);
-			row_data += "\t";
-			row_data += TO_STR(way_id);
-			row_data += "\n";
-			PQputline(mycon, row_data.c_str());
-		}
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
+    std::cout << "    Processing " << relations.size() << " relations\n";
+    createTempTable( create_relations, "__relations_temp" );
+    
+    std::string relations_columns("relation_id, type_id, class_id, name " );   
+    std::string copy_relations( "COPY __relations_temp (" + relations_columns + ") FROM STDIN");
+
+    
+    PGresult* q_result = PQexec(mycon, copy_relations.c_str());
+    for (const auto &relation : relations)
+    {
+std::cout << relation->m_Tags.size();
+        for (const auto &tag : relation->m_Tags)
+        {
+            // std::pair<std::string, std::string> pair = *it_tag++;
+            std::string row_data = TO_STR(relation->id);
+            row_data += "\t";
+            row_data += TO_STR(config->FindType(tag.first)->id);
+            row_data += "\t";
+            row_data += TO_STR(config->FindClass(tag.first, tag.second)->id);
+            row_data += "\t";
+            if(!relation->name.empty()) {
+                std::string escaped_name = relation->name;
+                boost::replace_all(escaped_name, "\t", "\\\t");
+                row_data += escaped_name;
+            }
+            row_data += "\n";
+std::cout << row_data << "\n";
+            PQputline(mycon, row_data.c_str());
+        }
+    }
+    PQputline(mycon, "\\.\n");
+    PQendcopy(mycon);
+    PQclear(q_result);
+    std::string insert_into_relations(
+         " WITH data AS ( "
+         " SELECT a.* "
+         " FROM  __relations_temp a LEFT JOIN " +  addSchema( "osm_relations" ) + " b USING (relation_id, type_id)"
+         "     WHERE (b.relation_id IS NULL OR b.type_id IS NULL)"
+
+         " INSERT INTO " + addSchema( "osm_relations" )  + " "
+          "( " + relations_columns + " ) "
+         " (SELECT " + relations_columns + " FROM data); ");
+    q_result = PQexec(mycon, insert_into_relations.c_str());
+    std::cout << " Inserted: " << PQcmdTuples(q_result) << "\n";
+    PQclear(q_result);
+    dropTable("__relations_temp");
+}
+
+
+//////////should break into 2 functions
+
+void Export2DB::exportRelationsWays(const std::vector<Relation*> &relations/*, Configuration *config*/) const {
+    std::cout << "    Processing way's relations: ";
+    createTempTable( create_relations_ways, "__relations_ways_temp" );
+    
+    std::string relations_ways_columns(" relation_id, way_id " );   
+    std::string copy_relations_ways( "COPY __relations_ways_temp (" + relations_ways_columns + ") FROM STDIN");
+    PGresult* q_result = PQexec(mycon, copy_relations_ways.c_str());
+
+
+    for (const auto &relation : relations) {
+        for (const auto &way_id : relation->m_WayRefs) {
+            std::string row_data = TO_STR(relation->id);
+            row_data += "\t";
+            row_data += TO_STR(way_id);
+            row_data += "\n";
+            PQputline(mycon, row_data.c_str());
+        }
+    }
+    PQputline(mycon, "\\.\n");
+    PQendcopy(mycon);
+    PQclear(q_result);
+
+    std::string insert_into_relations_ways(
+         " WITH data AS ( "
+         " SELECT a.* "
+         " FROM  __relations_ways_temp a LEFT JOIN " + addSchema( full_table_name("relations_ways") ) + " b USING (relation_id, way_id)"
+         "     WHERE (b.relation_id IS NULL OR b.way_id IS NULL))"
+
+         " INSERT INTO " + addSchema( full_table_name("relations_ways") ) +
+         " SELECT * FROM data; ");
+    q_result = PQexec(mycon, insert_into_relations_ways.c_str());
+    std::cout << " Inserted: " << PQcmdTuples(q_result) << "way's relations\n" ;
+    PQclear(q_result);
+    dropTable("__relations_ways_temp");
+
 }
 
+
+
 /*
 <relation id="147411" version="5" timestamp="2010-01-22T17:02:14Z" uid="24299" user="james_hiebert" changeset="3684904">
     <member type="way" ref="25584788" role=""/>
@@ -268,219 +545,291 @@ void Export2DB::exportRelations(std::vector<Relation*>& relations, Configuration
     <tag k="type" v="route"/>
   </relation>
  */
-void Export2DB::exportWays(std::vector<Way*>& ways, Configuration* config)
+
+void Export2DB::exportTags(const std::vector<Way*> &ways, Configuration *config) const
 {
-	std::vector<Way*>::iterator it_way( ways.begin() );
-	std::vector<Way*>::iterator last_way( ways.end() );
-    std::string copy_way_tag( "COPY " + tables_prefix + "way_tag(type_id, class_id, way_id) FROM STDIN");
-	PGresult* res = PQexec(mycon, copy_way_tag.c_str());
-	PQclear(res);
-	while( it_way!=last_way )
-	{
-		Way* way = *it_way++;
-		std::map<std::string, std::string>::iterator it_tag( way->m_Tags.begin() );
-		std::map<std::string, std::string>::iterator last_tag( way->m_Tags.end() );
-		while( it_tag!=last_tag )
-		{
-			std::pair<std::string, std::string> pair = *it_tag++;
-			std::string row_data = TO_STR(config->FindType(pair.first)->id);
-			row_data += "\t";
-			row_data += TO_STR(config->FindClass(pair.first, pair.second)->id);
-			row_data += "\t";
-			row_data += TO_STR(way->id);
-			row_data += "\n";
-
-			PQputline(mycon, row_data.c_str());
-		}
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
-
-	it_way = ways.begin();
-    std::string copy_ways( "COPY " + tables_prefix + "ways(gid, class_id, length, x1, y1, x2, y2, osm_id, the_geom, reverse_cost, maxspeed_forward, maxspeed_backward, priority, name) FROM STDIN");
-	res = PQexec(mycon, copy_ways.c_str());
-	while( it_way!=last_way )
-	{
-		Way* way = *it_way++;
-		std::string row_data = TO_STR(way->id);
-		row_data += "\t";
-		row_data += TO_STR(config->FindClass(way->type, way->clss)->id);
-		row_data += "\t";
-		//row_data += TO_STR(way->length);
-		//length based on oneway
-		if(way->oneWayType==REVERSED)
-			row_data += TO_STR(way->length*1000000);
-		else
-			row_data += TO_STR(way->length);
-
-		row_data += "\t";
-		row_data += TO_STR(way->m_NodeRefs.front()->lon);
-		row_data += "\t";
-		row_data += TO_STR(way->m_NodeRefs.front()->lat);
-		row_data += "\t";
-		row_data += TO_STR(way->m_NodeRefs.back()->lon);
-		row_data += "\t";
-		row_data += TO_STR(way->m_NodeRefs.back()->lat);
-		row_data += "\t";
-		row_data += TO_STR(way->osm_id);
-		row_data += "\t";
-		row_data += "srid=4326;" + way->geom;
-		row_data += "\t";
-
-		//reverse_cost
-		if(way->oneWayType==YES)
-	    	row_data += TO_STR(way->length*1000000);
-		else
-			row_data += TO_STR(way->length);
-
-		row_data += "\t";
-
-		//maxspeed
-		row_data += TO_STR(way->maxspeed_forward);
-		row_data += "\t";
-		row_data += TO_STR(way->maxspeed_backward);
-		row_data += "\t";
-
-		//priority
-		row_data += TO_STR(config->FindClass(way->type,way->clss)->priority);
-		row_data += "\t";
-
-		//name
-	  	if(!way->name.empty())
-	  	{
-	        std::string escaped_name = way->name;
-	        boost::replace_all(escaped_name, "\\", "");
-	        boost::replace_all(escaped_name, "\t", "\\\t");
-	        boost::replace_all(escaped_name, "\n", "");
-	        boost::replace_all(escaped_name, "\r", "");
-	        row_data += escaped_name.substr(0,199);
-	  	}
-		row_data += "\n";
-		//cout<<row_data<<endl;
-		PQputline(mycon, row_data.c_str());
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
+    std::cout << "    Processing way's tags"  << ": ";
+
+    createTempTable( create_way_tag, "__way_tag_temp"); 
+    std::string copy_way_tag( "COPY  __way_tag_temp (class_id, way_id) FROM STDIN");
+    PGresult* q_result = PQexec(mycon, copy_way_tag.c_str());
+    
+    for (const auto &way : ways) {
+        for (const auto &tag : way->m_Tags) {
+            std::string row_data = TO_STR(config->FindClass(tag.first, tag.second)->id);
+            row_data += "\t";
+            row_data += TO_STR(way->id);
+            row_data += "\n";
+            PQputline(mycon, row_data.c_str());
+        }
+    }
+    PQputline(mycon, "\\.\n");
+    PQendcopy(mycon);
+    PQclear(q_result);
+
+    std::string insert_into_tags(
+         " WITH data AS ( "
+         " SELECT a.class_id, a.way_id "
+         " FROM  __way_tag_temp a LEFT JOIN  " +  addSchema( "osm_way_tags" ) + " b USING ( class_id, way_id ) "
+         "     WHERE ( b.class_id IS NULL OR b.way_id IS NULL))"
+
+         " INSERT INTO " +  addSchema( "osm_way_tags" ) +
+         " SELECT * FROM data; ");
+
+    q_result = PQexec(mycon, insert_into_tags.c_str());
+    std::cout << " Inserted " << PQcmdTuples(q_result) << " way's tags\n";
+    PQclear(q_result);
+
+    dropTable("__way_tag_temp");
 }
 
-void Export2DB::exportTypesWithClasses(std::map<std::string, Type*>& types)
-{
-	std::map<std::string, Type*>::iterator tIt(types.begin());
-	std::map<std::string, Type*>::iterator tLast(types.end());
-    std::string copy_types( "COPY " + tables_prefix + "types(id, name) FROM STDIN");
-	PGresult* res = PQexec(mycon, copy_types.c_str());
-	PQclear(res);
-	while(tIt!=tLast)
-	{
-		Type* type = (*tIt++).second;
-		std::string row_data = TO_STR(type->id);
-		row_data += "\t";
-		row_data += type->name;
-		row_data += "\n";
-		PQputline(mycon, row_data.c_str());
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
-
-	tIt = types.begin();
-    std::string copy_classes( "COPY " + tables_prefix + "classes(id, type_id, name, priority, default_maxspeed) FROM STDIN");
-	res = PQexec(mycon, copy_classes.c_str());
-	PQclear(res);
-	while(tIt!=tLast)
-	{
-		Type* type = (*tIt++).second;
-		std::map<std::string, Class*>& classes= type->m_Classes;
-		std::map<std::string, Class*>::iterator cIt(classes.begin());
-		std::map<std::string, Class*>::iterator cLast(classes.end());
-
-		while(cIt!=cLast)
-		{
-			Class* clss = (*cIt++).second;
-			std::string row_data = TO_STR(clss->id);
-			row_data += "\t";
-			row_data += TO_STR(type->id);
-			row_data += "\t";
-			row_data += clss->name;
-			row_data += "\t";
-			row_data += TO_STR(clss->priority);
-			row_data += "\t";
-			row_data += TO_STR(clss->default_maxspeed);
-			row_data += "\n";
-			PQputline(mycon, row_data.c_str());
-		}
-	}
-	PQputline(mycon, "\\.\n");
-	PQendcopy(mycon);
+
+void Export2DB::prepare_table(const std::string &ways_columns) const {
+    if (createTempTable( create_ways, "__ways_temp") )
+        addTempGeometry( "__ways_temp", "LINESTRING" );
+
+    std::string copy_ways( "COPY __ways_temp  ("
+                    + ways_columns
+                    + " ) FROM STDIN");
+    PGresult* q_result = PQexec(mycon, copy_ways.c_str());
+    PQclear(q_result);
+}
+
+void Export2DB::exportWays(const std::vector<Way*> &ways, Configuration *config) const {
+
+    std::cout << "    Processing " <<  ways.size() <<  " ways"  << ":\n";
+
+    std::string ways_columns(
+                     " class_id, length,"
+                     " x1, y1,"
+                     " x2, y2,"
+                     " osm_id, source_osm," " target_osm,"
+                     " the_geom,"
+                     " cost, reverse_cost,"
+                     " one_way,"
+                     " maxspeed_forward, maxspeed_backward,"
+                     " priority,"
+                     " name");
+    prepare_table(ways_columns);
+
+    int64_t count = 0;
+    for (const auto &way : ways) {
+	if ((++count % 100000) == 0) {
+            PQputline(mycon, "\\.\n");
+            PQendcopy(mycon);
+            process_section(count, ways_columns);
+            prepare_table(ways_columns);
+        }
+        std::string row_data = TO_STR(config->FindClass(way->type, way->clss)->id);
+        row_data += "\t";
+        row_data += TO_STR(way->length);
+        row_data += "\t";
+        row_data += TO_STR(way->m_NodeRefs.front()->lon);
+        row_data += "\t";
+        row_data += TO_STR(way->m_NodeRefs.front()->lat);
+        row_data += "\t";
+        row_data += TO_STR(way->m_NodeRefs.back()->lon);
+        row_data += "\t";
+        row_data += TO_STR(way->m_NodeRefs.back()->lat);
+        row_data += "\t";
+        row_data += TO_STR(way->osm_id);
+        row_data += "\t";
+        row_data += TO_STR(way->m_NodeRefs.front()->id);
+        row_data += "\t";
+        row_data += TO_STR(way->m_NodeRefs.back()->id);
+        row_data += "\t";
+        row_data += "srid=4326;" + way->geom;
+        row_data += "\t";
+
+        //cost based on oneway
+        if(way->oneWayType==REVERSED)
+            row_data += TO_STR(- way->length);
+        else
+            row_data += TO_STR(way->length);
+        //reverse_cost
+        row_data += "\t";
+        if(way->oneWayType==YES)
+                row_data += TO_STR(- way->length);
+        else
+            row_data += TO_STR(way->length);
+
+        row_data += "\t";
+        row_data += TO_STR(way->oneWayType);
+        row_data += "\t";
+
+        //maxspeed
+        row_data += TO_STR(way->maxspeed_forward);
+        row_data += "\t";
+        row_data += TO_STR(way->maxspeed_backward);
+        row_data += "\t";
+
+        //priority
+        row_data += TO_STR(config->FindClass(way->type,way->clss)->priority);
+        row_data += "\t";
+
+        //name
+          if(!way->name.empty())
+          {
+            std::string escaped_name = way->name;
+            boost::replace_all(escaped_name, "\\", "");
+            boost::replace_all(escaped_name, "\t", "\\\t");
+            boost::replace_all(escaped_name, "\n", "");
+            boost::replace_all(escaped_name, "\r", "");
+            row_data += escaped_name.substr(0,199);
+          }
+        row_data += "\n";
+
+        PQputline(mycon, row_data.c_str());
+    }
+    PQputline(mycon, "\\.\n");
+    PQendcopy(mycon);
+    process_section(count, ways_columns);
 }
 
-void Export2DB::createTopology()
+void Export2DB::process_section(int64_t count, const std::string &ways_columns) const{
+
+
+    // std::cout << "Creating indices in temporary table\n";
+    create_gindex( "__ways_temp", "__ways_temp");
+    create_idindex(  "source_osm", "__ways_temp");
+    create_idindex(  "target_osm", "__ways_temp");
+#if 0
+    create_idindex(  "source", "__ways_temp" );
+    create_idindex(  "target", "__ways_temp" );
+#endif
+
+    // std::cout << "Deleting  duplicated ways from temporary table\n";
+    std::string delete_from_temp(
+         " DELETE FROM __ways_temp a "
+         "     USING " + addSchema( full_table_name("ways") ) + " b "
+         "     WHERE a.the_geom ~= b.the_geom AND ST_OrderingEquals(a.the_geom, b.the_geom);");
+    PGresult* q_result = PQexec(mycon, delete_from_temp.c_str());
+    // std::cout << "     Deleted " << PQcmdTuples(q_result) << " duplicated ways from temporary table\n";
+    PQclear(q_result);
+
+    // std::cout << "Updating to existing toplology the temporary table\n";
+    fill_source_target( "__ways_temp" , addSchema( full_table_name("ways_vertices_pgr") ) );
+
+    // std::cout << "Inserting new vertices in the vertex table\n";
+    fill_vertices_table(  "__ways_temp" , addSchema( full_table_name("ways_vertices_pgr") ) );
+
+    // std::cout << "Updating to new toplology the temporary table\n";
+    fill_source_target( "__ways_temp" , addSchema( full_table_name("ways_vertices_pgr") ) );
+
+
+    // std::cout << "Inserting new splitted ways to '" << addSchema( full_table_name("ways") ) << "'\n";
+    std::string insert_into_ways(
+         " INSERT INTO " + addSchema( full_table_name("ways") ) +
+          "( " + ways_columns + ", source, target, length_m, cost_s, reverse_cost_s ) "
+         " (SELECT " + ways_columns + ", source, target, length_m, cost_s, reverse_cost_s FROM __ways_temp); ");
+    q_result = PQexec(mycon, insert_into_ways.c_str());
+    // std::cout << " Inserted " << PQcmdTuples(q_result) << " splitted ways\n";
+    std::cout << "    Ways inserted: " << count << "\n";
+    PQclear(q_result);
+    dropTable("__ways_temp");
+}
+
+
+
+
+
+
+
+void Export2DB::exportTypes(const std::map<std::string, Type*> &types)  const
 {
-    bool everything_fine = true;
+    std::cout << "    Processing " << types.size() << " way types: ";
 
-    std::string alter_ways_source( "ALTER TABLE " + tables_prefix + "ways ADD COLUMN source integer;");
-	PGresult *result = PQexec(mycon, alter_ways_source.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "Alter table add source failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
-
-    std::string alter_ways_target( "ALTER TABLE " + tables_prefix + "ways ADD COLUMN target integer;");
-	result = PQexec(mycon, alter_ways_target.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "Alter table add target failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
-
-    std::string source_idx("CREATE INDEX " + tables_prefix + "source_idx ON " + tables_prefix + "ways(source);");
-	result = PQexec(mycon, source_idx.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "Create index add on source failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
-
-    std::string target_idx("CREATE INDEX " + tables_prefix + "target_idx ON " + tables_prefix + "ways(target);");
-	result = PQexec(mycon, target_idx.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "Create index add on target failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
-
-    std::string geom_idx("CREATE INDEX " + tables_prefix + "geom_idx ON " + tables_prefix + "ways USING GIST (the_geom);");
-    result = PQexec(mycon, geom_idx.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "Create geom index on ways failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
-
-    std::string ways_gid_idx("CREATE UNIQUE INDEX "+ tables_prefix + "ways_gid_idx ON "+ tables_prefix + "ways(gid);");
-	result = PQexec(mycon, ways_gid_idx.c_str());
-	if (PQresultStatus(result) != PGRES_COMMAND_OK)
-    {
-        std::cerr << "Create unique index on ways failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
-
-    std::string create_topology("SELECT pgr_createTopology('"+ tables_prefix + "ways', 0.00001, 'the_geom', 'gid');");
-	result = PQexec(mycon, create_topology.c_str());
-	if (PQresultStatus(result) != PGRES_TUPLES_OK)
+    createTempTable( create_types, "__way_types_temp"); 
+    std::string copy_types( "COPY __way_types_temp ( type_id, name ) FROM STDIN");
+
+    PGresult* q_result = PQexec(mycon, copy_types.c_str());
+
+    for ( const auto &e : types)
     {
-        std::cerr << "Create Topology failed: " << PQerrorMessage(mycon) << std::endl;
-        PQclear(result);
-        everything_fine = false;
-	}
+        Type* type = e.second;
+        std::string row_data = TO_STR(type->id);
+        row_data += "\t";
+        row_data += type->name;
+        row_data += "\n";
+        PQputline(mycon, row_data.c_str());
+    }
+    PQputline(mycon, "\\.\n");
+    PQendcopy(mycon);
+    PQclear(q_result);
+
+    std::string insert_into_types(
+         " WITH data AS ( "
+         " SELECT a.* "
+         " FROM  __way_types_temp a LEFT JOIN  " + addSchema("osm_way_types") + " b USING ( type_id ) "
+         "     WHERE (b.type_id IS NULL))"
+
+         " INSERT INTO "  + addSchema( "osm_way_types" ) + " ( type_id, name ) "
+         " (SELECT *  FROM data); ");
+
+    q_result = PQexec(mycon, insert_into_types.c_str());
+    std::cout << " Inserted " << PQcmdTuples(q_result) << " way types\n";
+
+    PQclear(q_result);
+    dropTable("__way_types_temp");
+}
+
 
-    if (everything_fine) {
-        std::cout << "Create Topology success" << std::endl;
+
+
+
+
+void Export2DB::exportClasses(const std::map<std::string, Type*> &types)  const {
+    std::cout << "    Processing way's classes: ";
+
+    std::string copy_classes(
+            "COPY __classes_temp"   
+            "   (class_id, type_id, name, priority, default_maxspeed)"
+            "   FROM STDIN");
+
+    createTempTable( create_classes, "__classes_temp" );
+    PGresult *q_result = PQexec(mycon, copy_classes.c_str());
+
+    for ( const auto &t : types) {
+        Type type(*t.second);
+
+        for (const auto &c : type.m_Classes ) {
+            Class clss(*c.second);
+            std::string row_data = TO_STR(clss.id);
+            row_data += "\t";
+            row_data += TO_STR(type.id);
+            row_data += "\t";
+            row_data += clss.name;
+            row_data += "\t";
+            row_data += TO_STR(clss.priority);
+            row_data += "\t";
+            row_data += TO_STR(clss.default_maxspeed);
+            row_data += "\n";
+            PQputline(mycon, row_data.c_str());
+        }
     }
+    PQputline(mycon, "\\.\n");
+    PQendcopy(mycon);
+    PQclear(q_result);
+
+    std::string insert_into_classes(
+         " WITH data AS ( "
+         " SELECT a.* "
+         " FROM  __classes_temp a LEFT JOIN " + addSchema( "osm_way_classes" ) + " b USING ( class_id ) "
+         "     WHERE (b.class_id IS NULL))"
+
+         " INSERT INTO " + addSchema( "osm_way_classes" ) + 
+         " SELECT *  FROM data; ");
+
+    q_result = PQexec(mycon, insert_into_classes.c_str());
+    std::cout << " Inserted " << PQcmdTuples(q_result) << " way's classes\n";
+
+    PQclear(q_result);
+    dropTable("__classes_temp");
+}
+
+void Export2DB::createTopology() const
+{
+    //fill_source_target( full_table_name( "ways" ), full_table_name("ways") + "_vertices_pgr");
+    //fill_vertices_table( full_table_name( "ways" ), full_table_name( "nodes" ) );
+    //fill_source_target( full_table_name( "ways" ) );
 }
diff --git a/src/Export2DB.h b/src/Export2DB.h
index 2d4af7b..47b9c01 100644
--- a/src/Export2DB.h
+++ b/src/Export2DB.h
@@ -21,16 +21,25 @@
 #ifndef EXPORT2DB_H
 #define EXPORT2DB_H
 
-//#include "postgresql/libpq-fe.h"
+#if 1  // Nagase San code
 #include "libpq-fe.h"
+#else  // Code we were using temporarly
+#ifdef __MINGW32__
+#include "libpq-fe.h"
+#else
+#include "postgresql/libpq-fe.h"
+#endif
+#endif
+
 #include "Node.h"
 #include "Way.h"
 #include "Relation.h"
 #include "Type.h"
 #include "Class.h"
 #include "Configuration.h"
-
-using namespace osm;
+#include "prog_options.h"
+ 
+using namespace osm2pgr;
 
 /**
  * This class connects to a postgresql database. For using this class,
@@ -47,7 +56,7 @@ public:
 	 * @param dbname name of the database
 	 *
 	 */
- 	Export2DB(std::string host, std::string user, std::string dbname, std::string port, std::string password, std::string tables_prefix);
+ 	Export2DB(const  po::variables_map &vm);
  	
  	/**
  	 * Destructor
@@ -57,15 +66,20 @@ public:
 
  	//! connects to database
  	int connect();
- 	//! creates needed tables
- 	void createTables();
+    bool has_postGIS() const;
+
+ 	//! creates needed tables and geometries
+ 	void createTables() const;
+ 	void createTempTables() const;
  	//! exports nodes to the database
- 	void exportNodes(std::map<long long, Node*>& nodes);
+ 	void exportNodes(const std::map<long long, Node*>& nodes) const;
  	//! exports ways to the database
- 	void exportWays(std::vector<Way*>& ways, Configuration* config);
- 	void exportRelations(std::vector<Relation*>& relations, Configuration* config);
-
- 	void exportTypesWithClasses(std::map<std::string, Type*>& types);
+ 	void exportTags(const std::vector<Way*> &ways, Configuration *config) const;
+ 	void exportRelations(const std::vector<Relation*> &relations, Configuration *config) const;
+ 	void exportRelationsWays(const std::vector<Relation*> &relations/*, Configuration *config*/) const;
+ 	void exportTypes(const std::map<std::string, Type*>& types) const;
+ 	void exportClasses(const std::map<std::string, Type*>& types) const;
+ 	void exportWays(const std::vector<Way*> &ways, Configuration *config) const;
 
  	/**
  	 * creates the topology
@@ -77,14 +91,59 @@ public:
  	 * time took circa 30 hours on an Intel Xeon 2,4 GHz with 2 GiB Ram.
  	 * But only for the streettypes "motorway", "primary" and "secondary"
  	 */
- 	void createTopology();
+ 	void createTopology() const;
  	//! Be careful! It deletes the created tables!
- 	void dropTables();
+ 	void dropTables() const;
+ 	void dropTempTables() const;
+
+ private:
+    //! to use with creating the ways
+    void prepare_table(const std::string &ways_columns) const;
+    void process_section(int64_t count, const std::string &ways_columns) const;
+
+    void dropTempTable(const std::string &table) const;
+    bool createTempTable(const std::string &sql,
+			 const std::string &table) const;
+    void dropTable(const std::string &table) const;
+    bool createTempTable(const std::string &sql,
+			 const std::string &table);
+    bool createTable(const std::string &sql,
+			 const std::string &table,
+			 const std::string &constraint = std::string("")) const;
+    void addTempGeometry( const std::string &table,
+                         const std::string &geometry_type) const;
+    void addGeometry( const std::string &schema, const std::string &table,
+                         const std::string &geometry_type) const;
+    void create_gindex(const std::string &index, const std::string &table) const;
+    void create_idindex(const std::string &colname, const std::string &table) const;
+    inline std::string full_table_name(const std::string &table) const {
+		return tables_prefix + table + tables_suffix;
+        }
+    inline std::string addSchema(const std::string &table) const {
+        return  (default_tables_schema() == "" ? "" : default_tables_schema() + ".") + table;
+        }
+    inline std::string default_tables_schema() const {
+		return tables_schema;
+        }
+	void fill_vertices_table(const std::string &table, const std::string &vertices_tab) const;
+	void fill_source_target(const std::string &table, const std::string &vertices_tab) const;
 
 private:
 	PGconn *mycon;
 	std::string conninf;
+	std::string tables_schema;
 	std::string tables_prefix;
+	std::string tables_suffix;
+
+        // create table query constants
+	std::string create_classes;
+	std::string create_nodes;
+	std::string create_ways;
+	std::string create_relations;
+	std::string create_relations_ways;
+	std::string create_way_tag;
+	std::string create_types;
+	std::string create_vertices;
 };
 
 #endif
diff --git a/src/Node.cpp b/src/Node.cpp
index ff633c1..256cf94 100644
--- a/src/Node.cpp
+++ b/src/Node.cpp
@@ -18,23 +18,16 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#include "stdafx.h"
-#include "Node.h"
+#include "./Node.h"
 
-namespace osm
-{
+namespace osm2pgr {
 
-Node::Node( long long id, double lat, double lon )
-:
-	id(id),
-	lat(lat),
-	lon(lon)
-{
-	this->numsOfUse=0;
+Node::Node(int64_t id, double lat, double lon) :
+    id(id),
+    lat(lat),
+    lon(lon) {
+    this->numsOfUse = 0;
 }
 
-Node::~Node()
-{
-}
 
-} // end namespace osm
+}  // end namespace osm2pgr
diff --git a/src/Node.h b/src/Node.h
index bfd05d1..be6246d 100644
--- a/src/Node.h
+++ b/src/Node.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
+ *   Copyright (C) 2008 by Daniel Wendt       							   *
  *   gentoo.murray at gmail.com   											   *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -18,11 +18,11 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef NODE_H
-#define NODE_H
+#ifndef SRC_NODE_H_
+#define SRC_NODE_H_
+#include <cstdint>
 
-namespace osm
-{
+namespace osm2pgr {
 
 /**
 \code
@@ -32,31 +32,28 @@ namespace osm
 		user="artus70" visible="true" timestamp="2007-11-18T22:18:59+00:00"/>
 \endcode
 */
-class Node
-{
-public:
-	//! ID of the node
-	long long id;
-	//! latitude coordinate
-	double lat;
-	//! longitude coordinate
-	double lon;
-	/**
-	 *	counts the rate, how much this node is used in different ways
-	 */
-	unsigned short numsOfUse;
-public:
-	/**
-	 *	Construktor
-	 * 	@param id ID of the node
-	 *	@param lat latitude
-	 *	@param lon longitude
-	 */
-	Node( long long id=-1, double lat=0, double lon=0 );
-	//! Destructor
-	virtual ~Node();
+class Node {
+ public:
+    // ! ID of the node
+    int64_t id;
+    // ! latitude coordinate
+    double lat;
+    // ! longitude coordinate
+    double lon;
+    /**
+     *    counts the rate, how much this node is used in different ways
+     */
+    unsigned short numsOfUse;
+ public:
+    /**
+     *    Construktor
+     *     @param id ID of the node
+     *    @param lat latitude
+     *    @param lon longitude
+     */
+    Node(int64_t id = -1, double lat = 0, double lon = 0);
 };
 
 
-} // end namespace osm
-#endif
+}  // end namespace osm2pgr
+#endif  // SRC_NODE_H_
diff --git a/src/OSMDocument.cpp b/src/OSMDocument.cpp
index d630d5e..b4441b8 100644
--- a/src/OSMDocument.cpp
+++ b/src/OSMDocument.cpp
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                    *
+ *   gentoo.murray at gmail.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -17,156 +17,134 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
-
-#include "stdafx.h"
-#include "OSMDocument.h"
-#include "Configuration.h"
-#include "Node.h"
-#include "Relation.h"
-#include "Way.h"
-#include "math_functions.h"
-
-
-namespace osm
-{
-
-OSMDocument::OSMDocument( Configuration& config ) : m_rConfig( config )
-{
+#include <boost/geometry.hpp>
+#include <boost/geometry/geometries/point_xy.hpp>
+#include <vector>
+#include <map>
+#include <utility>
+#include <string>
+#include "./OSMDocument.h"
+#include "./Configuration.h"
+#include "./Node.h"
+#include "./Relation.h"
+#include "./Way.h"
+#include "./math_functions.h"
+
+namespace osm2pgr {
+
+OSMDocument::OSMDocument(Configuration &config) : m_rConfig(config) {
 }
 
-OSMDocument::~OSMDocument()
-{
-	ez_mapdelete( m_Nodes );
-	ez_vectordelete( m_Ways );		
-	ez_vectordelete( m_Relations );		
-	ez_vectordelete( m_SplittedWays );
+OSMDocument::~OSMDocument() {
+    ez_mapdelete(m_Nodes);
+    ez_vectordelete(m_Ways);
+    ez_vectordelete(m_Relations);
+    ez_vectordelete(m_SplittedWays);
 }
-void OSMDocument::AddNode( Node* n )
-{
-	m_Nodes[n->id] = n;
+void OSMDocument::AddNode(Node* n) {
+    m_Nodes[n->id] = n;
 }
 
-void OSMDocument::AddWay( Way* w )
-{
-	m_Ways.push_back( w );
+void OSMDocument::AddWay(Way* w) {
+    m_Ways.push_back(w);
 }
 
-void OSMDocument::AddRelation( Relation* r )
-{
-	m_Relations.push_back( r );
+void OSMDocument::AddRelation(Relation* r) {
+    m_Relations.push_back(r);
 }
 
-Node* OSMDocument::FindNode( long long nodeRefId ) 
-const
-{
-	std::map<long long, Node*>::const_iterator  it = m_Nodes.find( nodeRefId );
-	return (it!=m_Nodes.end() ) ? it->second : 0;
+Node* OSMDocument::FindNode(long long nodeRefId)
+const {
+    std::map<long long, Node*>::const_iterator  it = m_Nodes.find(nodeRefId);
+    return (it != m_Nodes.end()) ? it->second : 0;
 }
 
-void OSMDocument::SplitWays()
-{
-	
-	std::vector<Way*>::const_iterator it(m_Ways.begin());
-	std::vector<Way*>::const_iterator last(m_Ways.end());
-
-	//splitted ways get a new ID
-	long long id=0;
-
-	while(it!=last)
-	{
-		Way* currentWay = *it++;
-		
-		// ITERATE THROUGH THE NODES
-		std::vector<Node*>::const_iterator it_node( currentWay->m_NodeRefs.begin());	
-		std::vector<Node*>::const_iterator last_node( currentWay->m_NodeRefs.end());
-		
-		Node* backNode = currentWay->m_NodeRefs.back();
-
-		while(it_node!=last_node)
-		{
-			
-			Node* node = *it_node++;
-			Node* secondNode=0;
-			Node* lastNode=0;
-			
-			Way* splitted_way = new Way( ++id, currentWay->visible, currentWay->osm_id, currentWay->maxspeed_forward, currentWay->maxspeed_backward );
-			splitted_way->name=currentWay->name;
-			splitted_way->type=currentWay->type;
-			splitted_way->clss=currentWay->clss;
-			splitted_way->oneWayType=currentWay->oneWayType;
-			
-			std::map<std::string, std::string>::iterator it_tag( currentWay->m_Tags.begin() );
-			std::map<std::string, std::string>::iterator last_tag( currentWay->m_Tags.end() );
-//			std::cout << "Number of tags: " << currentWay->m_Tags.size() << std::endl;
-//			std::cout << "First tag: " << currentWay->m_Tags.front()->key << ":" << currentWay->m_Tags.front()->value << std::endl;
-		
-			// ITERATE THROUGH THE TAGS
-		
-			while(it_tag!=last_tag)
-			{
-				std::pair<std::string, std::string> pair = *it_tag++;
-
-				splitted_way->AddTag(pair.first, pair.second);
-				
-			}
-			
-			
-
-	//GeometryFromText('LINESTRING('||x1||' '||y1||','||x2||' '||y2||')',4326);
-			
-			splitted_way->geom="LINESTRING("+ boost::lexical_cast<std::string>(node->lon) + " " + boost::lexical_cast<std::string>(node->lat) +",";
-			
-			splitted_way->AddNodeRef(node);
-			
-			bool found=false;
-			
-			if(it_node!=last_node)
-			{
-				while(it_node!=last_node && !found)
-				{
-					splitted_way->AddNodeRef(*it_node);
-					if((*it_node)->numsOfUse>1)
-					{
-						found=true;
-						secondNode = *it_node;
-						splitted_way->AddNodeRef(secondNode);
-						double length = getLength(node,secondNode);
-						if(length<0)
-							length*=-1;
-						splitted_way->length+=length;
-						splitted_way->geom+= boost::lexical_cast<std::string>(secondNode->lon) + " " + boost::lexical_cast<std::string>(secondNode->lat) + ")";
-						
-					}
-					else if(backNode==(*it_node))
-					{
-						lastNode=*it_node++;
-						splitted_way->AddNodeRef(lastNode);
-						double length = getLength(node,lastNode);
-						if(length<0)
-							length*=-1;
-						splitted_way->length+=length;
-						splitted_way->geom+= boost::lexical_cast<std::string>(lastNode->lon) + " " + boost::lexical_cast<std::string>(lastNode->lat) + ")";
-					}
-					else
-					{
-						splitted_way->geom+= boost::lexical_cast<std::string>((*it_node)->lon) + " " + boost::lexical_cast<std::string>((*it_node)->lat) + ",";
-						*it_node++;
-					}
-				}
-			}
-				
-			if(splitted_way->m_NodeRefs.front()!=splitted_way->m_NodeRefs.back())
-				m_SplittedWays.push_back(splitted_way);
-			else
-			{
-				delete splitted_way;
-				splitted_way=0;
-			}
-				
-		}
-
-	}
-
-} // end SplitWays
-
-} // end namespace osm
+void OSMDocument::SplitWays() {
+    std::vector<Way*>::const_iterator it(m_Ways.begin());
+    std::vector<Way*>::const_iterator last(m_Ways.end());
+
+    //  splitted ways get a new ID
+    long long id = 0;
+
+    while (it != last) {
+        Way* currentWay = *it++;
+
+        // ITERATE THROUGH THE NODES
+        std::vector<Node*>::const_iterator it_node(currentWay->m_NodeRefs.begin());
+        std::vector<Node*>::const_iterator last_node(currentWay->m_NodeRefs.end());
+
+        Node* backNode = currentWay->m_NodeRefs.back();
+
+        while (it_node != last_node) {
+            Node* node = *it_node++;
+            Node* secondNode = 0;
+            Node* lastNode = 0;
+
+            Way* splitted_way = new Way(++id, currentWay->visible,
+                currentWay->osm_id,
+                currentWay->maxspeed_forward,
+                currentWay->maxspeed_backward);
+            splitted_way->name = currentWay->name;
+            splitted_way->type = currentWay->type;
+            splitted_way->clss = currentWay->clss;
+            splitted_way->oneWayType = currentWay->oneWayType;
+
+            std::map<std::string, std::string>::iterator it_tag(currentWay->m_Tags.begin());
+            std::map<std::string, std::string>::iterator last_tag(currentWay->m_Tags.end());
+//            std::cout << "Number of tags: " << currentWay->m_Tags.size() << std::endl;
+//            std::cout << "First tag: " << currentWay->m_Tags.front()->key << ":" << currentWay->m_Tags.front()->value << std::endl;
+
+            // ITERATE THROUGH THE TAGS
+
+            while (it_tag != last_tag) {
+                std::pair<std::string, std::string> pair = *it_tag++;
+
+                splitted_way->AddTag(pair.first, pair.second);
+            }
+
+    // GeometryFromText('LINESTRING('||x1||' '||y1||','||x2||' '||y2||')',4326);
+
+            splitted_way->geom = "LINESTRING("+ boost::lexical_cast<std::string>(node->lon) + " " + boost::lexical_cast<std::string>(node->lat) +",";
+
+            splitted_way->AddNodeRef(node);
+
+            bool found = false;
+
+            if (it_node != last_node) {
+                while (it_node != last_node && !found) {
+                    splitted_way->AddNodeRef(*it_node);
+                    if ((*it_node)->numsOfUse > 1) {
+                        found = true;
+                        secondNode = *it_node;
+                        splitted_way->AddNodeRef(secondNode);
+                        double length = getLength(node, secondNode);
+                        if (length < 0)
+                            length*=-1;
+                        splitted_way->length+=length;
+                        splitted_way->geom+= boost::lexical_cast<std::string>(secondNode->lon) + " " + boost::lexical_cast<std::string>(secondNode->lat) + ")";
+                    } else if (backNode == (*it_node)) {
+                        lastNode =*it_node++;
+                        splitted_way->AddNodeRef(lastNode);
+                        double length = getLength(node, lastNode);
+                        if (length < 0)
+                            length*=-1;
+                        splitted_way->length+=length;
+                        splitted_way->geom+= boost::lexical_cast<std::string>(lastNode->lon) + " " + boost::lexical_cast<std::string>(lastNode->lat) + ")";
+                    } else {
+                        splitted_way->geom+= boost::lexical_cast<std::string>((*it_node)->lon) + " " + boost::lexical_cast<std::string>((*it_node)->lat) + ",";
+                        *it_node++;
+                    }
+                }
+            }
+
+            if (splitted_way->m_NodeRefs.front() != splitted_way->m_NodeRefs.back()) {
+                m_SplittedWays.push_back(splitted_way);
+            } else {
+                delete splitted_way;
+                splitted_way = 0;
+            }
+        }
+    }
+}  // end SplitWays
+
+}  // end namespace osm2pgr
diff --git a/src/OSMDocument.h b/src/OSMDocument.h
index 0bb1f3a..0be2be8 100644
--- a/src/OSMDocument.h
+++ b/src/OSMDocument.h
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
+ *   Copyright (C) 2008 by Daniel Wendt       							   *
  *   gentoo.murray at gmail.com   											   *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -18,13 +18,14 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef OSMDOCUMENT_H
-#define OSMDOCUMENT_H
+#ifndef SRC_OSMDOCUMENT_H_
+#define SRC_OSMDOCUMENT_H_
 
-#include "Configuration.h"
+#include <map>
+#include <vector>
+#include "./Configuration.h"
 
-namespace osm
-{
+namespace osm2pgr {
 
 
 class Node;
@@ -34,40 +35,37 @@ class Relation;
 /**
 	An osm-document.
 */
-class OSMDocument
-{
-public:
-	//! Map, which saves the parsed nodes
-	std::map<long long, Node*> m_Nodes;
-	//! parsed ways
-	std::vector<Way*> m_Ways;
-	//! splitted ways
-	std::vector<Way*> m_SplittedWays;
+class OSMDocument {
+ public:
+    // ! Map, which saves the parsed nodes
+    std::map<long long, Node*> m_Nodes;
+    //! parsed ways
+    std::vector<Way*> m_Ways;
+    //! splitted ways
+    std::vector<Way*> m_SplittedWays;
 
-	std::vector<Relation*> m_Relations;
+    std::vector<Relation*> m_Relations;
 
 
-	Configuration& m_rConfig;
-public:
-
-	//! Constructor
-	OSMDocument( Configuration& config);
-	//! Destructor
-	virtual ~OSMDocument();
-	//! add node to the map
-	void AddNode( Node* n );
-	//! add way to the map
-	void AddWay( Way* w );
-	//! find node by using an ID
-	Node* FindNode( long long nodeRefId ) const;
-	//! split the ways
-	void SplitWays();
-	//Node* getNode( long long nodeRefId );
-
-	void AddRelation( Relation* r );
+    Configuration& m_rConfig;
 
+ public:
+    //! Constructor
+    OSMDocument(Configuration& config);
+    //! Destructor
+    virtual ~OSMDocument();
+    //! add node to the map
+    void AddNode(Node* n);
+    //! add way to the map
+    void AddWay(Way* w);
+    //! find node by using an ID
+    Node* FindNode(long long nodeRefId) const;
+    //! split the ways
+    void SplitWays();
+    //  Node* getNode(long long nodeRefId);
+    void AddRelation(Relation* r);
 };
 
 
-} // end namespace osm
-#endif
+}  // end namespace osm2pgr
+#endif  // SRC_OSMDOCUMENT_H_
diff --git a/src/OSMDocumentParserCallback.cpp b/src/OSMDocumentParserCallback.cpp
index 2c8fbc6..bc09df2 100644
--- a/src/OSMDocumentParserCallback.cpp
+++ b/src/OSMDocumentParserCallback.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
+ *   Copyright (C) 2008 by Daniel Wendt       							   *
  *   gentoo.murray at gmail.com   											   *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -17,25 +17,25 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
-
-#include "stdafx.h"
-#include "OSMDocumentParserCallback.h"
-#include "OSMDocument.h"
-#include "Relation.h"
-#include "Way.h"
-#include "Node.h"
-#include "utils.h"
+#include <string>
+#include <iostream>
+#include <sstream>
+#include "math.h"
+#include "./OSMDocumentParserCallback.h"
+#include "./OSMDocument.h"
+#include "./Relation.h"
+#include "./Way.h"
+#include "./Node.h"
+#include "./utils.h"
 
 // define here, which streetstype you want to parse
 // for applying this filter, compile with "DISTRICT" as flag (g++ -DRESTRICT)
-//#define _FILTER if(m_pActWay->highway == "motorway" || m_pActWay->highway == "primary" || m_pActWay->highway == "secondary")
+// #define _FILTER if (m_pActWay->highway == "motorway" || m_pActWay->highway == "primary" || m_pActWay->highway == "secondary")
+
+namespace osm2pgr {
 
-namespace osm
-{
-	
-	
 /*
-<relation id="147411" version="5" timestamp="2010-01-22T17:02:14Z" uid="24299" user="james_hiebert" changeset="3684904">
+<relation id ="147411" version="5" timestamp="2010-01-22T17:02:14Z" uid ="24299" user="james_hiebert" changeset="3684904">
     <member type="way" ref="25584788" role=""/>
     <member type="way" ref="35064036" role=""/>
     <member type="way" ref="35064035" role=""/>
@@ -51,312 +51,263 @@ namespace osm
   </relation>
  */
 
-	
+
 /**
-	Parser callback for OSMDocument files
+    Parser callback for OSMDocument files
 */
-void OSMDocumentParserCallback::StartElement( const char *name, const char** atts )
-{
-	// START RELATIONS CODE
-	if( strcmp(name,"member") == 0 )
-	{
-		// std::cout << "In member..." << std::endl;
-		
-		if( m_pActRelation && atts != NULL )
-		{
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* name = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( name, "ref" ) == 0 )
-				{
-					long long wayRefId = atoll( value );
-                	m_pActRelation->AddWayRef( wayRefId );
-				}
-			}
-		}
-	} 
-	// END RELATIONS CODE
+void OSMDocumentParserCallback::StartElement(const char *name, const char** atts) {
+    // START RELATIONS CODE
+    if (strcmp(name, "member") == 0) {
+        // std::cout << "In member..." << std::endl;
+
+        if (m_pActRelation && atts != NULL) {
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* name = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(name, "ref") == 0) {
+                    long long wayRefId = atoll(value);
+                    m_pActRelation->AddWayRef(wayRefId);
+                }
+            }
+        }
+    }
+    // END RELATIONS CODE
 
 
-	if( strcmp(name,"nd") == 0 )
-	{
-		if( m_pActWay && atts != NULL )
-		{
-			const char* name = *atts++;
-			const char* value = *atts++;
-			if( strcmp(name,"ref")==0 )
-			{
-				long long nodeRefId = atoll( value );
-                                m_pActWay->AddNodeRef( m_rDocument.FindNode( nodeRefId ) );
-                                  Node * node = m_rDocument.FindNode( nodeRefId );
-                                  if(node != 0 ){
-                                    node->numsOfUse+=1;
-                                  }else {
-                                    std::cout << "Reference nd=" << nodeRefId << " has no corresponding Node Entry (Maybe Node entry after Reference?)" << std::endl;
-                                  }
-			}
-		}
-	} 
-	else if( strcmp(name,"node") == 0 )
-	{
-		if (atts != NULL)
-		{
-			long long id=-1;
-			double lat=-1;
-			double lon=-1;
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* name = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( name, "id" ) == 0 )
-				{
-					id = atoll( value);
-				}
-				else if( strcmp( name, "lat" ) == 0 )
-				{
-					lat = atof( value );
-				}
-				else if( strcmp( name, "lon" ) == 0 )
-				{
-					lon = atof( value );
-				}
-			}
-			if( id>0 ) m_rDocument.AddNode( new Node( id, lat, lon ) );
-		}
-	}
-	// THIS IS THE RELATION CODE...
-	else if( strcmp(name,"relation") == 0 )
-	{
-		if (atts != NULL)
-		{
-			long long id=-1;
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* name = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( name, "id" ) == 0 )
-				{
-					id = atoll( value);
-				}
-			}
-			if( id>0 ) m_pActRelation = new Relation( id );
-			// std::cout<<"Starting relation: "<<id<<std::endl;
+    if (strcmp(name, "nd") == 0) {
+        if (m_pActWay && atts != NULL) {
+            const char* name = *atts++;
+            const char* value = *atts++;
+            if (strcmp(name, "ref") == 0) {
+                long long nodeRefId = atoll(value);
+                m_pActWay->AddNodeRef(m_rDocument.FindNode(nodeRefId));
+                Node * node = m_rDocument.FindNode(nodeRefId);
+                if (node != 0) {
+                    ++node->numsOfUse;
+                } else {
+                    std::cout << "Reference nd=" << nodeRefId
+                            << " has no corresponding Node Entry (Maybe Node entry after Reference?)" << std::endl;
+                }
+            }
+        }
+    } else if (strcmp(name, "node") == 0) {
+        if (atts != NULL) {
+            long long id =-1;
+            double lat =-1;
+            double lon =-1;
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* name = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(name, "id") == 0) {
+                    id = atoll(value);
+                } else if (strcmp(name, "lat") == 0) {
+                    lat = atof(value);
+                } else if (strcmp(name, "lon") == 0) {
+                    lon = atof(value);
+                }
+            }
+            if (id > 0) m_rDocument.AddNode(new Node(id, lat, lon));
+        }
+    } else if (strcmp(name, "relation") == 0) {   // THIS IS THE RELATION CODE...
+        if (atts != NULL) {
+            long long id =-1;
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* name = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(name, "id") == 0) {
+                    id = atoll(value);
+                }
+            }
+            if (id > 0) m_pActRelation = new Relation(id);
+            // std::cout<<"Starting relation: "<<id<<std::endl;
+        }
+    } else if (strcmp(name, "tag") == 0) {  // END OF THE RELATIONS CODE
+        // <tag k="name" v="Pf�nderweg"/>
+        if (atts != NULL) {
+            std::string k;
+            std::string v;
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* name = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(name, "k") == 0) {
+                    k = value;
+                } else if (strcmp(name, "v") == 0) {
+                    v = value;
+                }
+            }
+            if (!k.empty()) {
+                //  CHECKING OUT SOME DATA...
+                // std::cout<<"k: "<<k<<", v: "<<v<<std::endl;
+                // std::cout<<"m_pActWay: "<<m_rDocument.m_rConfig.m_Types.count(k)<<std::endl;
+                // std::cout<<"thecount: "<<m_rDocument.m_rConfig.m_Types.count(k)<<std::endl;
+                if (m_pActWay && k.compare("name") == 0) {
+                    m_pActWay->name = v;
+                } else if (m_pActWay && k.compare("oneway") == 0) {  // checks ONEWAY tag
+                    // one way tag
+                    if ((v.compare("yes") == 0) || (v.compare("true") == 0) || (v.compare("1") == 0)) {
+                        m_pActWay->oneWayType = YES;
+                    } else {}
 
-		}
-	}
-	// END OF THE RELATIONS CODE
-	else if( strcmp(name,"tag") == 0 )
-	{
-		// <tag k="name" v="Pf�nderweg"/>
-		if (atts != NULL)
-		{
-			std::string k;
-			std::string v;
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* name = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( name, "k" ) == 0 )
-				{
-					k = value;
-				}
-				else if( strcmp( name, "v" ) == 0 )
-				{
-					v = value;
-				}
-			}
-			if( !k.empty() )
-			{
-				//  CHECKING OUT SOME DATA...
-				// std::cout<<"k: "<<k<<", v: "<<v<<std::endl;
-				// std::cout<<"m_pActWay: "<<m_rDocument.m_rConfig.m_Types.count(k)<<std::endl;
-				// std::cout<<"thecount: "<<m_rDocument.m_rConfig.m_Types.count(k)<<std::endl;
-				if( m_pActWay && k.compare("name")==0 )
-				{
-					m_pActWay->name = v;
-				}
-				//checks ONEWAY tag
-				else if( m_pActWay && k.compare("oneway")==0 ){
-					if ((v.compare("yes")==0) || (v.compare("true")==0) || (v.compare("1")==0)){
-						m_pActWay->oneWayType = YES;
-					}else
-					//check false conditions: 0, no, false
-					if ((v.compare("no")==0) || (v.compare("false")==0) || (v.compare("0")==0)){
-						m_pActWay->oneWayType = NO;
-					}else
-					//check revers conditions: -1
-					if ((v.compare("-1")==0)){
-						m_pActWay->oneWayType = REVERSED;
-					}
-				//in case roundabout, if there is not additional oneway tag, set default oneway to YES
-				}else if(m_pActWay && k.compare("junction")==0 && v.compare("roundabout")==0){
-					if (m_pActWay->oneWayType == NO) m_pActWay->oneWayType= YES;
-				}
-				//handle maxspeed:forward tag
-				else if(m_pActWay && k.compare("maxspeed:forward")==0){
-					int mspeed_fwd = 50;
+                    // check false conditions: 0, no, false
+                    if ((v.compare("no") == 0) || (v.compare("false") == 0) || (v.compare("0") == 0)) {
+                        m_pActWay->oneWayType = NO;
+                    } else {}
 
-					if(my_utils::is_number(v)){
-						mspeed_fwd = atoi(v.c_str());
-					}else{
-						//TODO: handle non-numeric values, ex.: RO:urban
-						std::cout<<"unknown maxspeed value: "<<v<<std::endl;
-					}
-					m_pActWay->maxspeed_forward = mspeed_fwd;
-				}
-				//handler maxspeed:backward
-				else if(m_pActWay && k.compare("maxspeed:backward")==0){
-					int mspeed_backwd = 50;
+                    // check reversible condition
+                    if (v.compare("reversible") == 0) {
+                        m_pActWay->oneWayType = REVERSIBLE;
+                    } else {}
 
-					if(my_utils::is_number(v)){
-						mspeed_backwd = atoi(v.c_str());
-					}else{
-						//TODO: handle non-numeric values, ex.: RO:urban
-						std::cout<<"unknown maxspeed value: "<<v<<std::endl;
-					}
-					m_pActWay->maxspeed_backward= mspeed_backwd;
-				}
-				else if(m_pActWay && k.compare("maxspeed")==0){
-					int mspeed_fwd = 50;
-					int mspeed_backwd = 50;
+                    // check revers conditions: -1
+                    if ((v.compare("-1") == 0)) {
+                        m_pActWay->oneWayType = REVERSED;
+                    }
 
-					if(my_utils::is_number(v)){
-						mspeed_fwd = atoi(v.c_str());
-						mspeed_backwd = atoi(v.c_str());
-					}else{
-						//TODO: handle non-numeric values, ex.: RO:urban
-						std::cout<<"unknown maxspeed value: "<<v<<std::endl;
-					}
-					m_pActWay->maxspeed_backward= mspeed_backwd;
-					m_pActWay->maxspeed_forward=mspeed_fwd;
-				}
-				//else if( m_pActWay && k.compare("highway")==0 )
-				else if( m_pActWay && m_rDocument.m_rConfig.m_Types.count(k) )				
-				{
-					m_pActWay->type = k;
-					m_pActWay->clss = v;
-					
-					
-					if( m_rDocument.m_rConfig.m_Types.count(m_pActWay->type) && m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes.count(m_pActWay->clss) ) {
-						
-						m_pActWay->AddTag( k, v );
+                  // in case roundabout, if there is not additional oneway tag, set default oneway to YES
+                } else if (m_pActWay && k.compare("junction") == 0 && v.compare("roundabout") == 0) {
+                    if (m_pActWay->oneWayType == UNKNOWN) m_pActWay->oneWayType= YES;
+                }
+                // handle 3 cases if the key contains maxspeed
+                else if (m_pActWay && k.find("maxspeed") != std::string::npos) {
+                    // If the value contains mph, strip unit, convert to kph.
+                    if (v.find("mph") != std::string::npos) {
+                        // Assume format is /[0-9]{1,3} ?mph/
+                        v = my_utils::read_number_substring(v);
+                        std::ostringstream ostr;
+                        ostr << floor(atoi(v.c_str()) * 1.60934);
+                        v = ostr.str();
+                    }
+                    // handle maxspeed:forward tag
+                    if (k.compare("maxspeed:forward") == 0) {
+                        int mspeed_fwd = 50;
 
-						// std::cout<<"Added tag: "<<k<<" "<<v<<std::endl;
+                        if (my_utils::is_number(v)) {
+                            mspeed_fwd = atoi(v.c_str());
+                        } else {
+                            // TODO: handle non-numeric values, ex.: RO:urban
+                            std::cout << "unknown maxspeed1 value: " << v << std::endl;
+                        }
+                        m_pActWay->maxspeed_forward = mspeed_fwd;
+                    }
+                    // handler maxspeed:backward
+                    else if (k.compare("maxspeed:backward") == 0) {
+                        int mspeed_backwd = 50;
 
-						//set default maxspeed values from classes, if not set previously (default: -1)
-						if(m_pActWay->maxspeed_forward<=0){
-							int newValue = m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes[m_pActWay->clss]->default_maxspeed;
-							m_pActWay->maxspeed_forward = newValue;
-						}
-						if(m_pActWay->maxspeed_backward<=0){
-							int newValue = m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes[m_pActWay->clss]->default_maxspeed;
-							m_pActWay->maxspeed_backward = newValue;
-						}
+                        if (my_utils::is_number(v)) {
+                            mspeed_backwd = atoi(v.c_str());
+                        } else {
+                            // TODO: handle non-numeric values, ex.: RO:urban
+                            std::cout << "unknown maxspeed2 value: " << v << std::endl;
+                        }
+                        m_pActWay->maxspeed_backward = mspeed_backwd;
+                    } else if (k.compare("maxspeed") == 0) {
+                        int mspeed_fwd = 50;
+                        int mspeed_backwd = 50;
 
-					}
-				}
-				// START TAG FOR RELATION
-				else if( m_pActRelation && m_rDocument.m_rConfig.m_Types.count(k)) 
-				{
-					if( m_rDocument.m_rConfig.m_Types.count(k) && m_rDocument.m_rConfig.m_Types[k]->m_Classes.count(v) ) {
-						
-						m_pActRelation->AddTag( k, v );
-						// std::cout<<"Added Relation tag: "<<k<<" "<<v<<std::endl;
-					}	
-					// std::cout<<"Relations tag: "<<k<<" "<<v<<std::endl;
-				}
-								
-				if (m_pActRelation && k.compare("name")==0 )
-				{
-					m_pActRelation->name = v;
-				}
-				
-				
-				// END TAG FOR RELATION
-			}
-		}
-	}
-	else if( strcmp(name,"way") == 0 )
-	{
-		if (atts != NULL)
-		{
-			long long id=-1;
-			bool visibility = false;
-			const char** attribut = (const char**)atts;
-			while( *attribut != NULL )
-			{
-				const char* name = *attribut++;
-				const char* value = *attribut++;
-				if( strcmp( name, "id" ) == 0 )
-				{
-					id = atoll( value);
-				}
-				else if( strcmp( name, "visible" ) == 0 )
-				{
-					visibility = strcmp(value,"true")==0;
-				}
+                        if (my_utils::is_number(v)) {
+                            mspeed_fwd = atoi(v.c_str());
+                            mspeed_backwd = atoi(v.c_str());
+                        } else {
+                            // TODO: handle non-numeric values, ex.: RO:urban
+                            std::cout << "unknown maxspeed3 value: " << v << std::endl;
+                        }
+                        m_pActWay->maxspeed_backward = mspeed_backwd;
+                        m_pActWay->maxspeed_forward = mspeed_fwd;
+                    }
+                }
+                // else if (m_pActWay && k.compare("highway") == 0)
+                else if (m_pActWay && m_rDocument.m_rConfig.m_Types.count(k)) {
+                    m_pActWay->type = k;
+                    m_pActWay->clss = v;
 
-			}
-			if( id>0 )
-			{
-				m_pActWay = new Way( id, visibility, id ,-1, -1);
-				
-			}
-		}
-	}
-	else if( strcmp(name,"osm") == 0 )
-	{
-	}
+                    if (m_rDocument.m_rConfig.m_Types.count(m_pActWay->type) && m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes.count(m_pActWay->clss)) {
+                        m_pActWay->AddTag(k, v);
+
+                        // std::cout<<"Added tag: "<<k<<" "<<v<<std::endl;
+
+                        // set default maxspeed values from classes, if not set previously (default: -1)
+                        if (m_pActWay->maxspeed_forward <= 0) {
+                            int newValue = m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes[m_pActWay->clss]->default_maxspeed;
+                            m_pActWay->maxspeed_forward = newValue;
+                        }
+                        if (m_pActWay->maxspeed_backward <= 0) {
+                            int newValue = m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes[m_pActWay->clss]->default_maxspeed;
+                            m_pActWay->maxspeed_backward = newValue;
+                        }
+                    }
+                }
+                // START TAG FOR RELATION
+                else if (m_pActRelation && m_rDocument.m_rConfig.m_Types.count(k))  {
+                    if (m_rDocument.m_rConfig.m_Types.count(k) && m_rDocument.m_rConfig.m_Types[k]->m_Classes.count(v)) {
+                        m_pActRelation->AddTag(k, v);
+                        // std::cout<<"Added Relation tag: "<<k<<" "<<v<<std::endl;
+                    }
+                    // std::cout<<"Relations tag: "<<k<<" "<<v<<std::endl;
+                }
+                if (m_pActRelation && k.compare("name") == 0) {
+                    m_pActRelation->name = v;
+                }
+                // END TAG FOR RELATION
+            }
+        }
+    } else if (strcmp(name, "way") == 0) {
+        if (atts != NULL) {
+            long long id =-1;
+            bool visibility = false;
+            const char** attribut = (const char**)atts;
+            while (*attribut != NULL) {
+                const char* name = *attribut++;
+                const char* value = *attribut++;
+                if (strcmp(name, "id") == 0) {
+                    id = atoll(value);
+                } else if (strcmp(name, "visible") == 0) {
+                    visibility = strcmp(value, "true") == 0;
+                }
+            }
+            if (id > 0) {
+                m_pActWay = new Way(id, visibility, id , -1, -1);
+            }
+        }
+    } else if (strcmp(name, "osm") == 0) {
+    }
 }
 
+void OSMDocumentParserCallback::EndElement(const char* name) {
+    if (strcmp(name, "way") == 0) {
+        //  #ifdef RESTRICT
+        // _FILTER
+
+        if (m_rDocument.m_rConfig.m_Types.count(m_pActWay->type) && m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes.count(m_pActWay->clss)) {
+        // #endif
 
+        // Comment out the following to get more log output
+        // std::cout<<"We need a way of type "<<m_pActWay->type<<" and class "<< m_pActWay->clss<<std::endl;
 
-void OSMDocumentParserCallback::EndElement( const char* name )
-{
-	if( strcmp(name,"way") == 0 )
-	{
-		//#ifdef RESTRICT
-		//_FILTER
-		
-		if( m_rDocument.m_rConfig.m_Types.count(m_pActWay->type) && m_rDocument.m_rConfig.m_Types[m_pActWay->type]->m_Classes.count(m_pActWay->clss) )
-		{
-		//#endif
-		
-		// Comment out the following to get more log output
-		//std::cout<<"We need a way of type "<<m_pActWay->type<<" and class "<< m_pActWay->clss<<std::endl;
-		
-			m_rDocument.AddWay( m_pActWay );
-			// std::cout << "First tag: " << m_pActWay->m_Tags.back()->key << ":" << m_pActWay->m_Tags.back()->value << std::endl;
+            m_rDocument.AddWay(m_pActWay);
+            // std::cout << "First tag: " << m_pActWay->m_Tags.back()->key << ":" << m_pActWay->m_Tags.back()->value << std::endl;
 
 
-		//#ifdef RESTRICT
-		}
-		else
-		{
-		// std::cout<<"We DON'T need a way of type "<<m_pActWay->type<<" and class "<< m_pActWay->clss<<std::endl;
-			// delete m_pActWay;
-		}
-		//#endif
+        // #ifdef RESTRICT
+        } else {
+        // std::cout<<"We DON'T need a way of type "<<m_pActWay->type<<" and class "<< m_pActWay->clss<<std::endl;
+            // delete m_pActWay;
+        }
+        // #endif
 
-		m_pActWay = 0;
-	}
-	// THIS IS THE RELATION CODE...
-	else if( strcmp(name,"relation") == 0 )
-	{
-		m_rDocument.AddRelation( m_pActRelation );
-		m_pActRelation = 0;		
+        m_pActWay = 0;
+    }
+    // THIS IS THE RELATION CODE...
+    else if (strcmp(name, "relation") == 0) {
+        m_rDocument.AddRelation(m_pActRelation);
+        m_pActRelation = 0;
 
-		// std::cout<<"Adding relation: "<<m_pActRelation->id<<std::endl;
-	}
-	// END OF THE RELATIONS CODE
-	
-	
-	
+        // std::cout<<"Adding relation: "<<m_pActRelation->id<<std::endl;
+    }
+    // END OF THE RELATIONS CODE
 }
 
-}; // end namespace osm
+}  // end namespace osm2pgr
diff --git a/src/OSMDocumentParserCallback.h b/src/OSMDocumentParserCallback.h
index 3b7b8b7..ec8950b 100644
--- a/src/OSMDocumentParserCallback.h
+++ b/src/OSMDocumentParserCallback.h
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                    *
+ *   gentoo.murray at gmail.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -18,62 +18,54 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef OSMDOCUMENTPARSERCALLBACK_H
-#define OSMDOCUMENTPARSERCALLBACK_H
+#ifndef SRC_OSMDOCUMENTPARSERCALLBACK_H_
+#define SRC_OSMDOCUMENTPARSERCALLBACK_H_
 
 #include <string.h>
-#include "XMLParser.h"
+#include "./XMLParser.h"
 
-namespace osm
-{
+namespace osm2pgr {
 
 class OSMDocument;
 class Way;
 class Relation;
 
 /**
-	Parser callback for OSMDocument files
+    Parser callback for OSMDocument files
 */
-class OSMDocumentParserCallback : public xml::XMLParserCallback
-{	
-	//! reference to a OSMDocument object
-	OSMDocument& m_rDocument;
-	//! current way, which will be parsed
-	Way* m_pActWay;
-	Relation* m_pActRelation;
+class OSMDocumentParserCallback :
+  public xml::XMLParserCallback {
+    //! reference to a OSMDocument object
+    OSMDocument& m_rDocument;
+    //! current way, which will be parsed
+    Way* m_pActWay;
+    Relation* m_pActRelation;
 
-	virtual void StartElement( const char *name, const char** atts );
+    virtual void StartElement(const char *name, const char** atts);
 
-	virtual void EndElement( const char* name );
+    virtual void EndElement(const char* name);
 
-	virtual void SetContent( const char* ch, int len)
-	{
-	}
+#if 0
+    virtual void SetContent(const char* ch, int len)=0;
 
-	virtual void ProcessingInstruction( const char* target, const char* data )
-	{
-	}
-
-	virtual void CDataBlockInternal(const char *value, int len)
-	{
-	}
-
-
-public:
-	/**
-	 *	Constructor
-	 */
-	OSMDocumentParserCallback( OSMDocument& doc )
-	:
-		m_rDocument( doc ),
-		m_pActWay( 0 ),
-		m_pActRelation( 0 )
-
-	{
-	}
-
-}; // class OSMDocumentParserCallback
-
-}; // end namespace osm
+    virtual void ProcessingInstruction(const char* target, const char* data)=0;
 
+    virtual void CDataBlockInternal(const char *value, int len)=0;
 #endif
+ public:
+    /**
+     *    Constructor
+     */
+    OSMDocumentParserCallback(OSMDocument& doc)
+    :
+        m_rDocument(doc),
+        m_pActWay(0),
+        m_pActRelation(0)
+
+    {
+    }
+};  // class OSMDocumentParserCallback
+
+}  // end namespace osm2pgr
+
+#endif  // SRC_OSMDOCUMENTPARSERCALLBACK_H_
diff --git a/src/Relation.cpp b/src/Relation.cpp
index 22431b5..c46a0a1 100644
--- a/src/Relation.cpp
+++ b/src/Relation.cpp
@@ -17,34 +17,28 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
+#include <string>
+#include "./Relation.h"
+//#include "./Way.h"
 
-#include "stdafx.h"
-#include "Relation.h"
-#include "Way.h"
 
+namespace osm2pgr {
 
-namespace osm
-{
-
-Relation::Relation( long long id )
+Relation::Relation(int64_t id)
 :
-	id(id)
-{
+    id(id) {
 }
 
-Relation::~Relation()
-{
+Relation::~Relation() {
 }
 
-void Relation::AddWayRef( long long pID )
-{
-	if( pID ) m_WayRefs.push_back(pID);
+void Relation::AddWayRef(int64_t pID) {
+    if (pID) m_WayRefs.push_back(pID);
 }
 
-void Relation::AddTag( std::string key, std::string value)
-{
-	m_Tags[key] = value;
+void Relation::AddTag(std::string key, std::string value) {
+    m_Tags[key] = value;
 }
 
-} // end namespace osm
+}  // end namespace osm2pgr
 
diff --git a/src/Relation.h b/src/Relation.h
index 3ac02c2..ecfb77e 100644
--- a/src/Relation.h
+++ b/src/Relation.h
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                    *
+ *   gentoo.murray at gmail.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -17,12 +17,15 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
-#ifndef RELATION_H
-#define RELATION_H
+#ifndef SRC_RELATION_H_
+#define SRC_RELATION_H_
 
-namespace osm
-{
-	class Way;
+#include <vector>
+#include <map>
+#include <string>
+
+namespace osm2pgr {
+class Way;
 
 /**
 \code
@@ -44,31 +47,29 @@ namespace osm
   </way>
 \endcode
 */
-class Relation
-{
-public:
-	long long id;
+class Relation {
+ public:
+    long long id;
     std::string name;
-	std::vector<long long> m_WayRefs;
-	std::map<std::string, std::string> m_Tags;
-
-public:
-	/** 
-	 *	Constructor
-	 *	@param id ID of the way
-	 */
-	Relation( long long id );
-	//! Destructor
-	~Relation();
-	/**
-	 *	saves the nodes of the way  
-	 *	@param pNode node
-	 */
-	void AddWayRef( long long pID );
-	void AddTag(std::string key, std::string value);
+    std::vector<int64_t> m_WayRefs;
+    std::map<std::string, std::string> m_Tags;
 
+ public:
+    /** 
+     *    Constructor
+     *    @param id ID of the way
+     */
+    Relation(int64_t id);
+    //! Destructor
+    ~Relation();
+    /**
+     *    saves the nodes of the way  
+     *    @param pNode node
+     */
+    void AddWayRef(int64_t pID);
+    void AddTag(std::string key, std::string value);
 };
 
 
-} // end namespace osm
-#endif
+}  // end namespace osm2pgr
+#endif  // SRC_RELATION_H_
diff --git a/src/Type.cpp b/src/Type.cpp
index dfeb03d..dda62ec 100644
--- a/src/Type.cpp
+++ b/src/Type.cpp
@@ -17,28 +17,24 @@
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
-                  
-#include "stdafx.h"
-#include "Type.h"
+#include <string>
+// #include "./stdafx.h"
+#include "./Type.h"
 
-namespace osm
-{
+namespace osm2pgr {
 
-Type::Type( long long id, std::string name)
+Type::Type(long long id, std::string name)
 :
   id(id),
-  name(name)
-{
+  name(name) {
 }
-                        
-Type::~Type()
-{
+
+Type::~Type() {
 }
-                        
-void Type::AddClass( Class* pClass )
-{
-  if( pClass ) m_Classes[pClass->name] = pClass;
+
+void Type::AddClass(Class* pClass ) {
+  if (pClass) m_Classes[pClass->name] = pClass;
 }
-                                
 
-} // end namespace osm
+
+}  // end namespace osm2pgr
diff --git a/src/Type.h b/src/Type.h
index b5dcfc0..f6fb6a0 100644
--- a/src/Type.h
+++ b/src/Type.h
@@ -17,38 +17,37 @@
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
-                  
-#ifndef TYPE_H
-#define TYPE_H
 
-#include "Class.h"
+#ifndef SRC_TYPE_H_
+#define SRC_TYPE_H_
 
-namespace osm
-{
+#include <map>
+#include <string>
+#include "./Class.h"
 
-class Type
-{
-public:
-	//std::vector<Class*> m_ClassRefs;
-	std::map<std::string, Class*> m_Classes;
-	//std::map<long long, Class*> m_Classes;
-	long long id;
-	std::string name;
-public:
-	/** 
-	 *	Constructor
-	 *	@param name name of the type
-	 */
-	Type( long long id, std::string );
-	//! Destructor
-	~Type();
-	/**
-	 *	saves the classes of the type
-	 *	@param pClass class
-	 */
-	void AddClass( Class* pClass );
-};
+namespace osm2pgr {
 
+class Type {
+ public:
+    //  std::vector<Class*> m_ClassRefs;
+    std::map<std::string, Class*> m_Classes;
+    //  std::map<long long, Class*> m_Classes;
+    long long id;
+    std::string name;
+ public:
+    /** 
+     *    Constructor
+     *    @param name name of the type
+     */
+    Type(long long id, std::string);
+    //! Destructor
+    ~Type();
+    /**
+     *    saves the classes of the type
+     *    @param pClass class
+     */
+    void AddClass(Class* pClass);
+};
 
-} // end namespace osm
+}  // end namespace osm2pgr
 #endif
diff --git a/src/Way.cpp b/src/Way.cpp
index 28767de..9a908af 100644
--- a/src/Way.cpp
+++ b/src/Way.cpp
@@ -18,28 +18,28 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#include "stdafx.h"
+#include <string>
 #include "Way.h"
 
 
-namespace osm
-{
+namespace osm2pgr {
 
-Way::Way( long long id, bool visible, long long osm_id, int maxspeed_forward, int maxspeed_backward)
+Way::Way(int64_t id, bool visible, int64_t osm_id, int maxspeed_forward, int maxspeed_backward)
 :
 	id(id),
 	visible(visible),
 	length(0),
-	oneWayType(NO),
-	osm_id(osm_id),
 	maxspeed_forward(maxspeed_forward),
-	maxspeed_backward(maxspeed_backward)
-{
+	maxspeed_backward(maxspeed_backward),
+	oneWayType(UNKNOWN),
+	osm_id(osm_id) {
 }
 
+#if 0
 Way::~Way()
 {
 }
+#endif
 
 void Way::AddNodeRef( Node* pNode )
 {
@@ -58,5 +58,5 @@ bool Way::HasTag(std::string key)
 
 
 
-} // end namespace osm
+} // end namespace osm2pgr
 
diff --git a/src/Way.h b/src/Way.h
index 66fc498..34bb3fb 100644
--- a/src/Way.h
+++ b/src/Way.h
@@ -20,11 +20,12 @@
 #ifndef WAY_H
 #define WAY_H
 
-namespace osm
-{
+#include <vector>
+#include <map>
+namespace osm2pgr {
 	class Node;
 
-	enum OneWayType{ YES, NO, REVERSED};
+	enum OneWayType{ UNKNOWN = 0, YES = 1, NO = 2, REVERSED = -1, REVERSIBLE = 3};
 
 /**
 \code
@@ -53,7 +54,7 @@ public:
 	std::vector<Node*> m_NodeRefs;
 	std::map<std::string, std::string> m_Tags;
 	//! ID of the way
-	long long id;
+	int64_t id;
 	bool visible;
 	//! name of the street
 	std::string name;
@@ -63,8 +64,8 @@ public:
 	std::string type;
 	std::string clss;
 
-	//long long type;
-	//long long clss;
+	//int64_t type;
+	//int64_t clss;
 	
 	//! geometry of the street
 	std::string geom;
@@ -76,7 +77,7 @@ public:
 
 	OneWayType oneWayType;
 	
-	long long osm_id;
+	int64_t osm_id;
 
 
 public:
@@ -84,9 +85,9 @@ public:
 	 *	Constructor
 	 *	@param id ID of the way
 	 */
-	Way( long long id, bool visible, long long osm_id,  int maxspeed_forward, int maxspeed_backward);
+	Way(int64_t id, bool visible, int64_t osm_id,  int maxspeed_forward, int maxspeed_backward);
 	//! Destructor
-	~Way();
+	// ~Way();
 	/**
 	 *	saves the nodes of the way  
 	 *	@param pNode node
@@ -97,5 +98,5 @@ public:
 };
 
 
-} // end namespace osm
+} // end namespace osm2pgr
 #endif
diff --git a/src/XMLParser.cpp b/src/XMLParser.cpp
index 0603990..558295c 100644
--- a/src/XMLParser.cpp
+++ b/src/XMLParser.cpp
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                    *
+ *   gentoo.murray at gmail.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -21,59 +21,53 @@
 #include <cstdio> 
 #include <errno.h>
 #include <string.h>
-#include "stdafx.h"
-#include "XMLParser.h"
 
+// #include "./stdafx.h"
+#include "./XMLParser.h"
 
-namespace xml
-{
+
+namespace xml {
 
 //------------------------------------- global Expat Callbacks:
 
-static void startElement(void *userData, const char *name, const char **atts)
-{
-	XMLParserCallback* pCallback = (XMLParserCallback*) userData;
-	if( pCallback ) pCallback->StartElement( name, atts );
+static void startElement(void *userData, const char *name, const char **atts) {
+    XMLParserCallback* pCallback = (XMLParserCallback*) userData;
+    if (pCallback) pCallback->StartElement(name, atts);
 }
 
-static void endElement(void *userData, const char *name)
-{
-	XMLParserCallback* pCallback = (XMLParserCallback*) userData;
-	if( pCallback ) pCallback->EndElement( name );
+static void endElement(void *userData, const char *name) {
+    XMLParserCallback* pCallback = (XMLParserCallback*) userData;
+    if (pCallback) pCallback->EndElement(name);
 }
 
 
 
 
-int XMLParser::Parse( XMLParserCallback& rCallback, const char* chFileName )
-{
-  int ret = 1; // File not found
+int XMLParser::Parse(XMLParserCallback& rCallback, const char* chFileName) {
+  int ret = 1;  // File not found
 
-  FILE* fp = fopen(chFileName,"rb");
-  if( fp )
-  {
+  FILE* fp = fopen(chFileName, "rb");
+  if (fp) {
     XML_Parser parser = XML_ParserCreate(NULL);
 
-    XML_SetUserData( parser, (void*)&rCallback );
+    XML_SetUserData(parser, (void*)&rCallback);
 
     // register Callbacks for start- and end-element events of the parser:
     XML_SetElementHandler(parser, startElement, endElement);
 
     int done;
-    do // loop over whole file content
-    {
+    do {  // loop over whole file content
       char buf[BUFSIZ];
-      size_t len = fread(buf, 1, sizeof(buf), fp);	// read chunk of data
-      done = len < sizeof(buf);	// end of file reached if buffer not completely filled
-      if (!XML_Parse(parser, buf, (int)len, done))
-  	{
-  	  // a parse error occured:
+      size_t len = fread(buf, 1, sizeof(buf), fp);    // read chunk of data
+      done = len < sizeof(buf);    // end of file reached if buffer not completely filled
+      if (!XML_Parse(parser, buf, (int)len, done)) {
+        // a parse error occured:
         fprintf(stderr,
-  	      "%s at line %d\n",
-  	      XML_ErrorString(XML_GetErrorCode(parser)),(int)
-  	      XML_GetCurrentLineNumber(parser));
-  	       fclose(fp);
-        ret = 2;	// quit, return = 2 indicating parsing error
+            "%s at line %d\n",
+            XML_ErrorString(XML_GetErrorCode(parser)), (int)
+            XML_GetCurrentLineNumber(parser));
+             fclose(fp);
+        ret = 2;    // quit, return = 2 indicating parsing error
         done = 1;
       }
     } while (!done);
@@ -81,13 +75,13 @@ int XMLParser::Parse( XMLParserCallback& rCallback, const char* chFileName )
     XML_ParserFree(parser);
     fclose(fp);
     ret = 0;
-  }else{
+  } else {
     fprintf(stderr, "Error opening %s: %s\n", chFileName, strerror(errno));
   }
-  return ret; // return = 0 indicating success
+  return ret;  // return = 0 indicating success
 }
 
 
 
-} // end namespace xml
+}  // end namespace xml
 //! \endcond
diff --git a/src/XMLParser.h b/src/XMLParser.h
index db66d09..3f1f9af 100644
--- a/src/XMLParser.h
+++ b/src/XMLParser.h
@@ -1,6 +1,6 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
+ *   Copyright (C) 2008 by Daniel Wendt                                    *
+ *   gentoo.murray at gmail.com                                               *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
@@ -18,26 +18,23 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#ifndef XMLPARSERT_H
-#define XMLPARSERT_H
+#ifndef SRC_XMLPARSER_H_
+#define SRC_XMLPARSER_H_
 
 #include <expat.h>
 
 
-namespace xml
-{
+namespace xml {
 
 /**
     Callback to be used with XMLParser 
  */
-class XMLParserCallback
-{
-public:
-
-  //! Constructor_
-  XMLParserCallback(){}
-  //! Destructor
-  virtual ~XMLParserCallback(){}
+class XMLParserCallback {
+ public:
+  // !  Constructor_
+  XMLParserCallback() {}
+  // ! Destructor
+  virtual ~XMLParserCallback() {}
 
   /**
     Implement to construct an element with the given name,
@@ -46,14 +43,12 @@ public:
     \param name  [IN]  element name
     \param atts  [IN]  the attributes
    */  
-	virtual void StartElement( const char *name, const char** atts )=0;
+    virtual void StartElement(const char *name, const char** atts) = 0;
 
   /**
     Implement to process parser event "end element"
     */
-	virtual void EndElement( const char *elementName )=0;
-
-
+    virtual void EndElement(const char *elementName) = 0;
 };
 
 /**
@@ -66,14 +61,12 @@ public:
   - link with xmlparse.lib
   - uses xmlparse.dll
 */
-class XMLParser
-{
-
-public:
+class XMLParser {
+ public:
   //! Constructor
-	XMLParser(){}
-	//! Destructor
-	virtual ~XMLParser(){}
+    XMLParser() {}
+    //! Destructor
+    virtual ~XMLParser() {}
 
   /**
     Parse a file from the file system-
@@ -83,13 +76,12 @@ public:
     
     \return 0: everything ok, 1: file not found, 2: parsing error
    */  
-	int Parse( XMLParserCallback& rCallback, const char* chFileName );
-
-private:
-	//! the expat parser object / imported from „expat.h“
-	XML_Parser			m_ParserCtxt;
+    int Parse(XMLParserCallback& rCallback, const char* chFileName);
 
+ private:
+    //! the expat parser object / imported from „expat.h“
+    XML_Parser            m_ParserCtxt;
 };
 
-} // end namespace xml
-#endif
+}  // end namespace xml
+#endif  //  SRC_XMLPARSER_H_
diff --git a/src/math_functions.cpp b/src/math_functions.cpp
index 4dda6b0..ba74843 100644
--- a/src/math_functions.cpp
+++ b/src/math_functions.cpp
@@ -1,3 +1,4 @@
+
 /***************************************************************************
  *   Copyright (C) 2008 by Daniel Wendt   								   *
  *   gentoo.murray at gmail.com   											   *
@@ -18,10 +19,13 @@
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
 
-#include "stdafx.h"
-#include "math_functions.h"
 #include <math.h>
+#include "math_functions.h"
+
+#include <boost/geometry.hpp>
+#include <boost/geometry/geometries/point_xy.hpp>
 
+#if 0
 // calculation of the lenght is correct???
 double getLength(Node* a, Node* b)
 {
@@ -38,4 +42,16 @@ double getLength(Node* a, Node* b)
 	return R*d;
 
 }
+#endif
 
+//boost fucntion to calculate the distance
+double getLength(Node* a, Node *b)
+{
+	typedef boost::geometry::model::d2::point_xy<double> point_type;
+    
+    //converted point to fit boost.geomtery (`p` and `q` are same as `a ` and `b`)
+    point_type p(a->lat , a->lon);
+    point_type q(b->lat , b->lon);
+
+    return boost::geometry::distance(p, q);
+}
diff --git a/src/math_functions.h b/src/math_functions.h
index 397429d..f82c641 100644
--- a/src/math_functions.h
+++ b/src/math_functions.h
@@ -23,7 +23,7 @@
 
 #include "Node.h"
 
-using namespace osm;
+using namespace osm2pgr;
 
 double getLength(Node* a, Node* b);
 
diff --git a/src/osm2pgrouting.cpp b/src/osm2pgrouting.cpp
index ea9686e..9cb19cd 100644
--- a/src/osm2pgrouting.cpp
+++ b/src/osm2pgrouting.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
+ *   Copyright (C) 2008 by Daniel Wendt               					   *
  *   gentoo.murray at gmail.com   											   *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
@@ -17,242 +17,161 @@
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
+#include <unistd.h>
+#include <string>
+#include <iostream>
+#include <ctime>
+#include <chrono>
+#include "./ConfigurationParserCallback.h"
+#include "./OSMDocument.h"
+#include "./OSMDocumentParserCallback.h"
+#include "./Export2DB.h"
+#include "./prog_options.h"
+
+
+
+int main(int argc, char* argv[]) {
+    //  Start Timers
+    clock_t begin = clock();
+    std::time_t start_t = std::time(NULL);
+    std::chrono::steady_clock::time_point begin_elapsed = std::chrono::steady_clock::now();
+    try {
+
+        po::options_description od_desc("Allowed options");
+        get_option_description(od_desc);
+
+        po::variables_map vm;
+        po::store(po::command_line_parser(argc, argv).
+            options(od_desc).run(), vm);
+
+        if (vm.count("help")) {
+            std::cout << od_desc << "\n";
+            return 0;
+        }
+
+        if (vm.count("version")) {
+            std::cout << "This is osm2pgrouting Version 2.1\n";
+            return 0;
+        }
+
+        try {
+            notify(vm);
+        }
+
+        catch(exception &ex) {
+            std::cout << ex.what() << "\n";
+            std::cout << od_desc << "\n";
+            return 0;
+        }
+
+        std::cout << "Execution starts at: " << std::ctime(&start_t) << "\n";
+        process_command_line(vm);
+
+        auto dataFile(vm["file"].as<string>());
+        auto confFile(vm["conf"].as<string>());
+        auto skipnodes(!vm.count("addnodes"));
+        auto clean(vm.count("clean"));
+
+
+        std::cout << "Connecting to the database"  << endl;
+            Export2DB dbConnection(vm);
+            if (dbConnection.connect() == 1)
+                return 1;
+            if (!dbConnection.has_postGIS()) {
+                std::cout << "ERROR: postGIS not found\n";
+                return 1;
+            }
 
-#include "stdafx.h"
-#include "Configuration.h"
-#include "ConfigurationParserCallback.h"
-#include "OSMDocument.h"
-#include "OSMDocumentParserCallback.h"
-#include "Way.h"
-#include "Node.h"
-#include "Relation.h"
-#include "Export2DB.h"
-
-using namespace osm;
-using namespace xml;
-using namespace std;
-
-void _error()
-{
-				cout << "following params are required: " << endl;
-				cout << "-file <file>  -- name of your osm xml file" << endl;
-				cout << "-conf <conf>  -- name of your configuration xml file" << endl;
-				cout << "-dbname <dbname> -- name of your database" << endl;
-				cout << "-user <user> -- name of the user, which have write access to the database" << endl;
-				cout << "optional:" << endl;
-				cout << "-host <host>  -- host of your postgresql database (default: 127.0.0.1)" << endl;
-				cout << "-port <port> -- port of your database (default: 5432)" << endl;
-				cout << "-passwd <passwd> --  password for database access" << endl;
-				cout << "-prefixtables <prefix> --  add at the beginning of table names" << endl;
-				cout << "-clean -- drop previously created tables" << endl;
-                cout << "-skipnodes -- don't import the nodes table" << endl;
 
+        std::cout << "Opening configuration file: " << confFile.c_str() << endl;
+            Configuration* config = new Configuration();
+            ConfigurationParserCallback cCallback(*config);
 
-}
 
-int main(int argc, char* argv[])
-{
-	std::string file;
-	std::string cFile;
-	std::string host="127.0.0.1";
-	std::string user;
-	std::string port="5432";
-	std::string dbname;
-	std::string passwd;
-	std::string prefixtables="";
-	bool skipnodes = false;
-	bool clean = false;
-	if(argc >=7 && argc <=19)
-	{
-		int i=1;
-		while( i<argc)
-		{
-			if(strcmp(argv[i],"-file")==0)
-			{
-				i++;
-				file = argv[i];
-			}
-
-			else if(strcmp(argv[i],"-conf")==0)
-			{
-				i++;
-				cFile = argv[i];
-			}
-
-			else if(strcmp(argv[i],"-host")==0)
-			{
-				i++;
-				host = argv[i];
-			}
-			else if(strcmp(argv[i],"-dbname")==0)
-			{
-				i++;
-				dbname = argv[i];
-			}
-			else if(strcmp(argv[i],"-user")==0)
-			{
-				i++;
-				user = argv[i];
-			}
-			else if(strcmp(argv[i],"-port")==0)
-			{
-				i++;
-				port = argv[i];
-			}
-			else if(strcmp(argv[i],"-passwd")==0)
-			{
-				i++;
-				passwd = argv[i];
-			}
-			else if(strcmp(argv[i],"-prefixtables")==0)
-			{
-				i++;
-				prefixtables = argv[i];
-			}
-			else if(strcmp(argv[i],"-clean")==0)
-			{
-				clean = true;
-			}
-			else if(strcmp(argv[i],"-skipnodes")==0)
-            {
-                skipnodes = true;
+        std::cout << "    Parsing configuration\n" << endl;
+            xml::XMLParser parser;
+            int ret = parser.Parse(cCallback, confFile.c_str());
+            if (ret != 0) {
+                cout << "Failed to open / parse config file " << confFile.c_str() << endl;
+                return 1;
             }
-			else
-			{
-				cout << "unknown parameter: " << argv[i] << endl;
-				_error();
-				return 1;
-			}
-
-			i++;
-		}
 
-	}
-	else
-	{
-		_error();
-		return 1;
-	}
 
-	if(file.empty() || cFile.empty() || dbname.empty() || user.empty())
-	{
-		_error();
-		return 1;
-	}
+        std::cout << "Opening data file: " << dataFile.c_str() << endl;
+            OSMDocument *document = new OSMDocument(*config);
+            OSMDocumentParserCallback callback(*document);
 
-	Export2DB test(host, user, dbname, port, passwd, prefixtables);
-	if(test.connect()==1)
-		return 1;
+        std::cout << "    Parsing data\n" << endl;
+        ret = parser.Parse(callback, dataFile.c_str());
+        if (ret != 0) {
+            cerr << "Failed to open / parse data file " << dataFile.c_str() << endl;
+            return 1;
+        }
 
-	XMLParser parser;
+        std::cout << "Spliting ways\n" << endl;
+            document->SplitWays();
 
-	cout << "Trying to load config file " << cFile.c_str() << endl;
+        //############# Export2DB
+        { 
+        if (clean) {
+            std::cout << "Dropping tables..." << endl;
+            dbConnection.dropTables();
+        }
 
-	Configuration* config = new Configuration();
-    ConfigurationParserCallback cCallback( *config );
+        std::cout << "Creating tables..." << endl;
+            dbConnection.createTables();
 
-	cout << "Trying to parse config" << endl;
+        std::cout << "Adding auxiliary tables to database..." << endl;
+            if (!skipnodes) {
+                dbConnection.exportNodes(document->m_Nodes);
+            }
+            dbConnection.exportTypes(config->m_Types);
+            dbConnection.exportClasses(config->m_Types);
+            //dbConnection.exportRelations(document->m_Relations, config);
+            dbConnection.exportRelationsWays(document->m_Relations);
+            dbConnection.exportTags(document->m_SplittedWays, config);
+            dbConnection.exportWays(document->m_SplittedWays, config);
 
-	int ret = parser.Parse(cCallback, cFile.c_str());
-	if (ret!=0) {
-		cerr << "Failed to parse config file " << cFile.c_str() << endl;
-		return 1;
-	}
 
-	cout << "Trying to load data" << endl;
+            std::cout << "Creating topology..." << endl;
+            dbConnection.createTopology();
+        }
 
-	OSMDocument* document = new OSMDocument(*config);
-    OSMDocumentParserCallback callback(*document);
 
-	cout << "Trying to parse data" << endl;
+        std::cout << "#########################" << endl;
 
-	ret = parser.Parse( callback, file.c_str() );
-	if( ret!=0 ) {
-		if( ret == 1 )
-			cerr << "Failed to open data file" << endl;
-		cerr << "Failed to parse data file " << file.c_str() << endl;
-		return 1;
-	}
+        std::cout << "size of streets: " << document->m_Ways.size() <<    endl;
+        std::cout << "size of splitted ways : " << document->m_SplittedWays.size() <<    endl;
 
-	cout << "Split ways" << endl;
+        clock_t end = clock();
+        double elapsed_secs = double(end - begin) / static_cast<double>(CLOCKS_PER_SEC);
 
-	document->SplitWays();
-	//############# Export2DB
-	{
+        std::time_t end_t = std::time(NULL);
+        std::chrono::steady_clock::time_point end_elapsed = std::chrono::steady_clock::now();
 
-		if( clean )
-    {
-        cout << "Dropping tables..." << endl;
+        typedef std::chrono::duration<int,std::milli> millisecs_t ;
+        millisecs_t duration = std::chrono::duration_cast<millisecs_t>(end_elapsed - begin_elapsed);
 
-        test.dropTables();
+        std::cout << "Execution started at: " << std::ctime(&start_t);
+        std::cout << "Execution ended at:   " << std::ctime(&end_t);
+        std::cout << "Elapsed time: " << (double)duration.count()/(double)1000 << " Seconds.\n" ;
+        std::cout << "User CPU time: -> " << elapsed_secs << " seconds\n";
+        
+        std::cout << "#########################" << endl;
+        //  string n;
+        //  getline(cin, n);
+        return 0;
     }
-
-    cout << "Creating tables..." << endl;
-    test.createTables();
-
-    cout << "Adding tag types and classes to database..." << endl;
-    test.exportTypesWithClasses(config->m_Types);
-
-		cout << "Adding relations to database..." << endl;
-		test.exportRelations(document->m_Relations, config);
-
-		// Optional user argument skipnodes will not add nodes to the database (saving a lot of time if not necessary)
-		if ( !skipnodes) {
-			cout << "Adding nodes to database..." << endl;
-			test.exportNodes(document->m_Nodes);
-		}
-
-		cout << "Adding ways to database..." << endl;
-		test.exportWays(document->m_SplittedWays, config);
-		
-		//TODO: make some free memory, document will be not used anymore, so there will be more memory available to future DB operations.
-
-		cout << "Creating topology..." << endl;
-		test.createTopology();
-	}
-
-	//#############
-
-	/*
-	std::vector<Way*>& ways= document.m_Ways;
-	std::vector<Way*>::iterator it( ways.begin() );
-	std::vector<Way*>::iterator last( ways.end() );
-	while( it!=last )
-	{
-		Way* pWay = *it;
-
-		if( !pWay->name.empty() )
-		{
-			if( pWay->m_NodeRefs.empty() )
-			{
-				std::cout << pWay->name.c_str() << endl;
-			}
-			else
-			{
-				Node* n0 = pWay->m_NodeRefs.front();
-				Node* n1 = pWay->m_NodeRefs.back();
-				//if(n1->numsOfUse==1)
-				//cout << "way-id: " << pWay->id << " name: " << pWay->name <<endl;
-				//std::cout << n0->lon << " "  << n0->lat << " " << n1->lon << " " << n1->lat << " " << pWay->name.c_str() << " highway: " << pWay->highway.c_str() << " Start numberOfUse: " << n0->numsOfUse << " End numberOfUse: " << n1->numsOfUse  << " ID: " << n1->id <<  endl;
-			}
-		}
-		if( pWay->id == 20215432 ) // Pfaenderweg
-		{
-			cout << pWay->name << endl;
-			int a=4;
-		}
-		++it;
-	}
-	*/
-
-	cout << "#########################" << endl;
-
-	cout << "size of streets: " << document->m_Ways.size() <<	endl;
-	cout << "size of splitted ways : " << document->m_SplittedWays.size() <<	endl;
-
-	cout << "finished" << endl;
-
-	//string n;
-	//getline( cin, n );
-	return 0;
+    catch (exception &e) {
+        std::cout << e.what() << endl;
+        return 1;
+    } 
+    catch (string &e) {
+        std::cout << e << endl;
+        return 1;
+    } 
+    catch (...) {
+        std::cout << "Terminating" << endl;
+        return 1;
+    } 
 }
diff --git a/src/prog_options.cpp b/src/prog_options.cpp
new file mode 100644
index 0000000..bbd94b0
--- /dev/null
+++ b/src/prog_options.cpp
@@ -0,0 +1,107 @@
+/*osm2pgRouting
+
+Copyright (c) 2015 Sarthak Agarwal
+sarthak0415 at gmail.com
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+*/
+
+/*to compile and run
+>>  g++ prog_options.cpp -o a -lboost_program_options -g -O3 -std=c++0x -Wall -pedantic
+>> ./a --help
+*/
+
+#include <boost/program_options.hpp>
+#include <boost/config.hpp>
+
+#include <iostream>
+#include <fstream>
+#include <iterator>
+#include <string>
+namespace po = boost::program_options;
+
+using namespace std;
+
+
+void get_option_description(po::options_description &od_desc) {
+    /* po::options_description help_od_desc("Help"),
+        required_od_desc("Required options"),
+        optional_od_desc("Optional options");
+    */
+    po::options_description help_od_desc("Help"),
+        general_od_desc("General"),
+        db_options_od_desc("Database options"),
+        not_used_od_desc("Not used currently");
+
+    help_od_desc.add_options()
+        // help
+        ("help", "Produce help message for this version.")
+        ("version,v", "Print version string")
+        ;
+
+    general_od_desc.add_options()
+        // general
+        ("file,f", po::value<string>()->required(), "REQUIRED: Name of the osm file.")
+        ("conf,c", po::value<string>()->default_value("/usr/share/osm2pgrouting/mapconfig.xml"), "Name of the configuration xml file.")
+        //("conf,c", po::value<string>()->required()->default_value("/usr/share/osm2pgrouting/mapconfig.xml"), "Name of the configuration xml file.")
+        ("schema", po::value<string>()->default_value(""), "Database schema to put tables.\n  blank:\t defaults to default schema dictated by PostgreSQL search_path.")
+        ("prefix", po::value<string>()->default_value(""), "Prefix added at the beginning of the table names.")
+        ("suffix", po::value<string>()->default_value(""), "Suffix added at the end of the table names.")
+        ("addnodes", "Import the osm_nodes table.")
+        ("clean", "Drop previously created tables.")
+        ;
+
+    db_options_od_desc.add_options()
+        // database options
+        ("dbname,d", po::value<string>()->required(), "Name of your database (Required).")
+        ("username,U", po::value<string>()->default_value("postgres"), "Name of the user, which have write access to the database.")
+        ("host,h", po::value<string>()->default_value("localhost"), "Host of your postgresql database.")
+        ("port,p", po::value<string>()->default_value("5432"), "db_port of your database.")
+        ("password,W", po::value<string>()->default_value(""), "Password for database access.")
+        ;
+
+    not_used_od_desc.add_options()
+        ("threads,t", po::value<bool>()->default_value(false), "threads.")
+        ("multimodal,m", po::value<bool>()->default_value(false), "multimodal.")
+        ("multilevel,l", po::value<bool>()->default_value(false), "multilevel.")
+        ;
+
+    od_desc.add(help_od_desc).add(general_od_desc).add(db_options_od_desc);  // .add(not_used_od_desc);
+
+    return;
+}
+
+
+
+void
+process_command_line( po::variables_map &vm) {
+    std::cout << "***************************************************\n";
+    std::cout << "           COMMAND LINE CONFIGURATION             *\n";
+    std::cout << "***************************************************\n";
+    std::cout << "Filename = " << vm["file"].as<string>() << "\n";
+    std::cout << "Configuration file = " << vm["conf"].as<string>() << "\n";
+    std::cout << "host = " << vm["host"].as<std::string>() << "\n";
+    std::cout << "port = " << vm["port"].as<std::string>() << "\n";
+    std::cout << "dbname = " << vm["dbname"].as<std::string>() << "\n";
+    std::cout << "username = " << vm["username"].as<std::string>() << "\n";
+    std::cout << "password = " << vm["password"].as<string>() << "\n";
+    std::cout << "schema= " << vm["schema"].as<string>() << "\n";
+    std::cout << "prefix = " << vm["prefix"].as<string>() << "\n";
+    std::cout << "suffix = " << vm["suffix"].as<string>() << "\n";
+    std::cout << (vm.count("clean")? "D" : "Don't d") << "rop tables\n";
+    std::cout << (vm.count("addnodes")? "A" : "Don't a") << "dd nodes\n";
+    std::cout << "***************************************************\n";
+}
diff --git a/src/prog_options.h b/src/prog_options.h
new file mode 100644
index 0000000..90460d2
--- /dev/null
+++ b/src/prog_options.h
@@ -0,0 +1,32 @@
+/*PGR
+Copyright (c) 2015 (your full name)
+(your main e mail address)
+
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef SRC_PROG_OPTIONS_H_
+#define SRC_PROG_OPTIONS_H_
+
+#include <boost/config.hpp>
+#include <boost/program_options.hpp>
+namespace po = boost::program_options;
+
+
+using namespace std;
+
+void get_option_description(po::options_description &od_desc);
+void process_command_line(po::variables_map &vm);
+
+#endif  // SRC_PROG_OPTIONS_H_
diff --git a/src/stdafx.h b/src/stdafx.h
deleted file mode 100644
index e6808ab..0000000
--- a/src/stdafx.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/***************************************************************************
- *   Copyright (C) 2008 by Daniel Wendt   								   *
- *   gentoo.murray at gmail.com   											   *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
- ***************************************************************************/
-
-#include <map>
-#include <vector>
-#include <string>
-#include <iostream>
-#include <boost/lexical_cast.hpp>
diff --git a/src/utils.cpp b/src/utils.cpp
index 5318c0e..55e0358 100644
--- a/src/utils.cpp
+++ b/src/utils.cpp
@@ -9,4 +9,23 @@ bool is_number(const std::string& s)
 	return !s.empty() && it == s.end();
 }
 
+
+/**
+ * Read first 5 digits from a string.
+ */
+std::string read_number_substring(const std::string& s)
+{
+	char buffer[5];
+	int index = 0;
+	std::string::const_iterator it = s.begin();
+	while (it < s.end() && std::isdigit(*it) && index < 5){
+		buffer[index] = *it;
+		++index;
+		++it;
+	}
+	buffer[index] = 0;
+	std::string out( buffer );
+	return out;
+}
+
 }
diff --git a/src/utils.h b/src/utils.h
index d27ca6e..e41a87a 100644
--- a/src/utils.h
+++ b/src/utils.h
@@ -4,4 +4,6 @@ namespace my_utils{
 
 bool is_number(const std::string& s);
 
+std::string read_number_substring(const std::string& s);
+
 }
diff --git a/tools/cpplint.py b/tools/cpplint.py
new file mode 100755
index 0000000..756dafb
--- /dev/null
+++ b/tools/cpplint.py
@@ -0,0 +1,6321 @@
+#Copyright (c) 2009 Google Inc. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#    * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#    * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#    * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+"""Does google-lint on c++ files.
+
+The goal of this script is to identify places in the code that *may*
+be in non-compliance with google style.  It does not attempt to fix
+up these problems -- the point is to educate.  It does also not
+attempt to find all problems, or to ensure that everything it does
+find is legitimately a problem.
+
+In particular, we can get very confused by /* and // inside strings!
+We do a small hack, which is to ignore //'s with "'s after them on the
+same line, but it is far from perfect (in either direction).
+"""
+
+import codecs
+import copy
+import getopt
+import math  # for log
+import os
+import re
+import sre_compile
+import string
+import sys
+import unicodedata
+
+
+_USAGE = """
+Syntax: cpplint.py [--verbose=#] [--output=vs7] [--filter=-x,+y,...]
+                   [--counting=total|toplevel|detailed] [--root=subdir]
+                   [--linelength=digits]
+        <file> [file] ...
+
+  The style guidelines this tries to follow are those in
+    http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml
+
+  Every problem is given a confidence score from 1-5, with 5 meaning we are
+  certain of the problem, and 1 meaning it could be a legitimate construct.
+  This will miss some errors, and is not a substitute for a code review.
+
+  To suppress false-positive errors of a certain category, add a
+  'NOLINT(category)' comment to the line.  NOLINT or NOLINT(*)
+  suppresses errors of all categories on that line.
+
+  The files passed in will be linted; at least one file must be provided.
+  Default linted extensions are .cc, .cpp, .cu, .cuh and .h.  Change the
+  extensions with the --extensions flag.
+
+  Flags:
+
+    output=vs7
+      By default, the output is formatted to ease emacs parsing.  Visual Studio
+      compatible output (vs7) may also be used.  Other formats are unsupported.
+
+    verbose=#
+      Specify a number 0-5 to restrict errors to certain verbosity levels.
+
+    filter=-x,+y,...
+      Specify a comma-separated list of category-filters to apply: only
+      error messages whose category names pass the filters will be printed.
+      (Category names are printed with the message and look like
+      "[whitespace/indent]".)  Filters are evaluated left to right.
+      "-FOO" and "FOO" means "do not print categories that start with FOO".
+      "+FOO" means "do print categories that start with FOO".
+
+      Examples: --filter=-whitespace,+whitespace/braces
+                --filter=whitespace,runtime/printf,+runtime/printf_format
+                --filter=-,+build/include_what_you_use
+
+      To see a list of all the categories used in cpplint, pass no arg:
+         --filter=
+
+    counting=total|toplevel|detailed
+      The total number of errors found is always printed. If
+      'toplevel' is provided, then the count of errors in each of
+      the top-level categories like 'build' and 'whitespace' will
+      also be printed. If 'detailed' is provided, then a count
+      is provided for each category like 'build/class'.
+
+    root=subdir
+      The root directory used for deriving header guard CPP variable.
+      By default, the header guard CPP variable is calculated as the relative
+      path to the directory that contains .git, .hg, or .svn.  When this flag
+      is specified, the relative path is calculated from the specified
+      directory. If the specified directory does not exist, this flag is
+      ignored.
+
+      Examples:
+        Assuming that src/.git exists, the header guard CPP variables for
+        src/chrome/browser/ui/browser.h are:
+
+        No flag => CHROME_BROWSER_UI_BROWSER_H_
+        --root=chrome => BROWSER_UI_BROWSER_H_
+        --root=chrome/browser => UI_BROWSER_H_
+
+    linelength=digits
+      This is the allowed line length for the project. The default value is
+      80 characters.
+
+      Examples:
+        --linelength=120
+
+    extensions=extension,extension,...
+      The allowed file extensions that cpplint will check
+
+      Examples:
+        --extensions=hpp,cpp
+
+    cpplint.py supports per-directory configurations specified in CPPLINT.cfg
+    files. CPPLINT.cfg file can contain a number of key=value pairs.
+    Currently the following options are supported:
+
+      set noparent
+      filter=+filter1,-filter2,...
+      exclude_files=regex
+      linelength=80
+
+    "set noparent" option prevents cpplint from traversing directory tree
+    upwards looking for more .cfg files in parent directories. This option
+    is usually placed in the top-level project directory.
+
+    The "filter" option is similar in function to --filter flag. It specifies
+    message filters in addition to the |_DEFAULT_FILTERS| and those specified
+    through --filter command-line flag.
+
+    "exclude_files" allows to specify a regular expression to be matched against
+    a file name. If the expression matches, the file is skipped and not run
+    through liner.
+
+    "linelength" allows to specify the allowed line length for the project.
+
+    CPPLINT.cfg has an effect on files in the same directory and all
+    sub-directories, unless overridden by a nested configuration file.
+
+      Example file:
+        filter=-build/include_order,+build/include_alpha
+        exclude_files=.*\.cc
+
+    The above example disables build/include_order warning and enables
+    build/include_alpha as well as excludes all .cc from being
+    processed by linter, in the current directory (where the .cfg
+    file is located) and all sub-directories.
+"""
+
+# We categorize each error message we print.  Here are the categories.
+# We want an explicit list so we can list them all in cpplint --filter=.
+# If you add a new error message with a new category, add it to the list
+# here!  cpplint_unittest.py should tell you if you forget to do this.
+_ERROR_CATEGORIES = [
+    'build/class',
+    'build/c++11',
+    'build/deprecated',
+    'build/endif_comment',
+    'build/explicit_make_pair',
+    'build/forward_decl',
+    'build/header_guard',
+    'build/include',
+    'build/include_alpha',
+    'build/include_order',
+    'build/include_what_you_use',
+    'build/namespaces',
+    'build/printf_format',
+    'build/storage_class',
+    'legal/copyright',
+    'readability/alt_tokens',
+    'readability/braces',
+    'readability/casting',
+    'readability/check',
+    'readability/constructors',
+    'readability/fn_size',
+    'readability/function',
+    'readability/inheritance',
+    'readability/multiline_comment',
+    'readability/multiline_string',
+    'readability/namespace',
+    'readability/nolint',
+    'readability/nul',
+    'readability/strings',
+    'readability/todo',
+    'readability/utf8',
+    'runtime/arrays',
+    'runtime/casting',
+    'runtime/explicit',
+    'runtime/int',
+    'runtime/init',
+    'runtime/invalid_increment',
+    'runtime/member_string_references',
+    'runtime/memset',
+    'runtime/indentation_namespace',
+    'runtime/operator',
+    'runtime/printf',
+    'runtime/printf_format',
+    'runtime/references',
+    'runtime/string',
+    'runtime/threadsafe_fn',
+    'runtime/vlog',
+    'whitespace/blank_line',
+    'whitespace/braces',
+    'whitespace/comma',
+    'whitespace/comments',
+    'whitespace/empty_conditional_body',
+    'whitespace/empty_loop_body',
+    'whitespace/end_of_line',
+    'whitespace/ending_newline',
+    'whitespace/forcolon',
+    'whitespace/indent',
+    'whitespace/line_length',
+    'whitespace/newline',
+    'whitespace/operators',
+    'whitespace/parens',
+    'whitespace/semicolon',
+    'whitespace/tab',
+    'whitespace/todo',
+    ]
+
+# These error categories are no longer enforced by cpplint, but for backwards-
+# compatibility they may still appear in NOLINT comments.
+_LEGACY_ERROR_CATEGORIES = [
+    'readability/streams',
+    ]
+
+# The default state of the category filter. This is overridden by the --filter=
+# flag. By default all errors are on, so only add here categories that should be
+# off by default (i.e., categories that must be enabled by the --filter= flags).
+# All entries here should start with a '-' or '+', as in the --filter= flag.
+_DEFAULT_FILTERS = ['-build/include_alpha']
+
+# We used to check for high-bit characters, but after much discussion we
+# decided those were OK, as long as they were in UTF-8 and didn't represent
+# hard-coded international strings, which belong in a separate i18n file.
+
+# C++ headers
+_CPP_HEADERS = frozenset([
+    # Legacy
+    'algobase.h',
+    'algo.h',
+    'alloc.h',
+    'builtinbuf.h',
+    'bvector.h',
+    'complex.h',
+    'defalloc.h',
+    'deque.h',
+    'editbuf.h',
+    'fstream.h',
+    'function.h',
+    'hash_map',
+    'hash_map.h',
+    'hash_set',
+    'hash_set.h',
+    'hashtable.h',
+    'heap.h',
+    'indstream.h',
+    'iomanip.h',
+    'iostream.h',
+    'istream.h',
+    'iterator.h',
+    'list.h',
+    'map.h',
+    'multimap.h',
+    'multiset.h',
+    'ostream.h',
+    'pair.h',
+    'parsestream.h',
+    'pfstream.h',
+    'procbuf.h',
+    'pthread_alloc',
+    'pthread_alloc.h',
+    'rope',
+    'rope.h',
+    'ropeimpl.h',
+    'set.h',
+    'slist',
+    'slist.h',
+    'stack.h',
+    'stdiostream.h',
+    'stl_alloc.h',
+    'stl_relops.h',
+    'streambuf.h',
+    'stream.h',
+    'strfile.h',
+    'strstream.h',
+    'tempbuf.h',
+    'tree.h',
+    'type_traits.h',
+    'vector.h',
+    # 17.6.1.2 C++ library headers
+    'algorithm',
+    'array',
+    'atomic',
+    'bitset',
+    'chrono',
+    'codecvt',
+    'complex',
+    'condition_variable',
+    'deque',
+    'exception',
+    'forward_list',
+    'fstream',
+    'functional',
+    'future',
+    'initializer_list',
+    'iomanip',
+    'ios',
+    'iosfwd',
+    'iostream',
+    'istream',
+    'iterator',
+    'limits',
+    'list',
+    'locale',
+    'map',
+    'memory',
+    'mutex',
+    'new',
+    'numeric',
+    'ostream',
+    'queue',
+    'random',
+    'ratio',
+    'regex',
+    'set',
+    'sstream',
+    'stack',
+    'stdexcept',
+    'streambuf',
+    'string',
+    'strstream',
+    'system_error',
+    'thread',
+    'tuple',
+    'typeindex',
+    'typeinfo',
+    'type_traits',
+    'unordered_map',
+    'unordered_set',
+    'utility',
+    'valarray',
+    'vector',
+    # 17.6.1.2 C++ headers for C library facilities
+    'cassert',
+    'ccomplex',
+    'cctype',
+    'cerrno',
+    'cfenv',
+    'cfloat',
+    'cinttypes',
+    'ciso646',
+    'climits',
+    'clocale',
+    'cmath',
+    'csetjmp',
+    'csignal',
+    'cstdalign',
+    'cstdarg',
+    'cstdbool',
+    'cstddef',
+    'cstdint',
+    'cstdio',
+    'cstdlib',
+    'cstring',
+    'ctgmath',
+    'ctime',
+    'cuchar',
+    'cwchar',
+    'cwctype',
+    ])
+
+
+# These headers are excluded from [build/include] and [build/include_order]
+# checks:
+# - Anything not following google file name conventions (containing an
+#   uppercase character, such as Python.h or nsStringAPI.h, for example).
+# - Lua headers.
+_THIRD_PARTY_HEADERS_PATTERN = re.compile(
+    r'^(?:[^/]*[A-Z][^/]*\.h|lua\.h|lauxlib\.h|lualib\.h)$')
+
+
+# Assertion macros.  These are defined in base/logging.h and
+# testing/base/gunit.h.  Note that the _M versions need to come first
+# for substring matching to work.
+_CHECK_MACROS = [
+    'DCHECK', 'CHECK',
+    'EXPECT_TRUE_M', 'EXPECT_TRUE',
+    'ASSERT_TRUE_M', 'ASSERT_TRUE',
+    'EXPECT_FALSE_M', 'EXPECT_FALSE',
+    'ASSERT_FALSE_M', 'ASSERT_FALSE',
+    ]
+
+# Replacement macros for CHECK/DCHECK/EXPECT_TRUE/EXPECT_FALSE
+_CHECK_REPLACEMENT = dict([(m, {}) for m in _CHECK_MACROS])
+
+for op, replacement in [('==', 'EQ'), ('!=', 'NE'),
+                        ('>=', 'GE'), ('>', 'GT'),
+                        ('<=', 'LE'), ('<', 'LT')]:
+  _CHECK_REPLACEMENT['DCHECK'][op] = 'DCHECK_%s' % replacement
+  _CHECK_REPLACEMENT['CHECK'][op] = 'CHECK_%s' % replacement
+  _CHECK_REPLACEMENT['EXPECT_TRUE'][op] = 'EXPECT_%s' % replacement
+  _CHECK_REPLACEMENT['ASSERT_TRUE'][op] = 'ASSERT_%s' % replacement
+  _CHECK_REPLACEMENT['EXPECT_TRUE_M'][op] = 'EXPECT_%s_M' % replacement
+  _CHECK_REPLACEMENT['ASSERT_TRUE_M'][op] = 'ASSERT_%s_M' % replacement
+
+for op, inv_replacement in [('==', 'NE'), ('!=', 'EQ'),
+                            ('>=', 'LT'), ('>', 'LE'),
+                            ('<=', 'GT'), ('<', 'GE')]:
+  _CHECK_REPLACEMENT['EXPECT_FALSE'][op] = 'EXPECT_%s' % inv_replacement
+  _CHECK_REPLACEMENT['ASSERT_FALSE'][op] = 'ASSERT_%s' % inv_replacement
+  _CHECK_REPLACEMENT['EXPECT_FALSE_M'][op] = 'EXPECT_%s_M' % inv_replacement
+  _CHECK_REPLACEMENT['ASSERT_FALSE_M'][op] = 'ASSERT_%s_M' % inv_replacement
+
+# Alternative tokens and their replacements.  For full list, see section 2.5
+# Alternative tokens [lex.digraph] in the C++ standard.
+#
+# Digraphs (such as '%:') are not included here since it's a mess to
+# match those on a word boundary.
+_ALT_TOKEN_REPLACEMENT = {
+    'and': '&&',
+    'bitor': '|',
+    'or': '||',
+    'xor': '^',
+    'compl': '~',
+    'bitand': '&',
+    'and_eq': '&=',
+    'or_eq': '|=',
+    'xor_eq': '^=',
+    'not': '!',
+    'not_eq': '!='
+    }
+
+# Compile regular expression that matches all the above keywords.  The "[ =()]"
+# bit is meant to avoid matching these keywords outside of boolean expressions.
+#
+# False positives include C-style multi-line comments and multi-line strings
+# but those have always been troublesome for cpplint.
+_ALT_TOKEN_REPLACEMENT_PATTERN = re.compile(
+    r'[ =()](' + ('|'.join(_ALT_TOKEN_REPLACEMENT.keys())) + r')(?=[ (]|$)')
+
+
+# These constants define types of headers for use with
+# _IncludeState.CheckNextIncludeOrder().
+_C_SYS_HEADER = 1
+_CPP_SYS_HEADER = 2
+_LIKELY_MY_HEADER = 3
+_POSSIBLE_MY_HEADER = 4
+_OTHER_HEADER = 5
+
+# These constants define the current inline assembly state
+_NO_ASM = 0       # Outside of inline assembly block
+_INSIDE_ASM = 1   # Inside inline assembly block
+_END_ASM = 2      # Last line of inline assembly block
+_BLOCK_ASM = 3    # The whole block is an inline assembly block
+
+# Match start of assembly blocks
+_MATCH_ASM = re.compile(r'^\s*(?:asm|_asm|__asm|__asm__)'
+                        r'(?:\s+(volatile|__volatile__))?'
+                        r'\s*[{(]')
+
+
+_regexp_compile_cache = {}
+
+# {str, set(int)}: a map from error categories to sets of linenumbers
+# on which those errors are expected and should be suppressed.
+_error_suppressions = {}
+
+# The root directory used for deriving header guard CPP variable.
+# This is set by --root flag.
+_root = None
+
+# The allowed line length of files.
+# This is set by --linelength flag.
+_line_length = 80
+
+# The allowed extensions for file names
+# This is set by --extensions flag.
+_valid_extensions = set(['cc', 'h', 'cpp', 'cu', 'cuh', 'c', 'hpp'])
+
+def ParseNolintSuppressions(filename, raw_line, linenum, error):
+  """Updates the global list of error-suppressions.
+
+  Parses any NOLINT comments on the current line, updating the global
+  error_suppressions store.  Reports an error if the NOLINT comment
+  was malformed.
+
+  Args:
+    filename: str, the name of the input file.
+    raw_line: str, the line of input text, with comments.
+    linenum: int, the number of the current line.
+    error: function, an error handler.
+  """
+  matched = Search(r'\bNOLINT(NEXTLINE)?\b(\([^)]+\))?', raw_line)
+  if matched:
+    if matched.group(1):
+      suppressed_line = linenum + 1
+    else:
+      suppressed_line = linenum
+    category = matched.group(2)
+    if category in (None, '(*)'):  # => "suppress all"
+      _error_suppressions.setdefault(None, set()).add(suppressed_line)
+    else:
+      if category.startswith('(') and category.endswith(')'):
+        category = category[1:-1]
+        if category in _ERROR_CATEGORIES:
+          _error_suppressions.setdefault(category, set()).add(suppressed_line)
+        elif category not in _LEGACY_ERROR_CATEGORIES:
+          error(filename, linenum, 'readability/nolint', 5,
+                'Unknown NOLINT error category: %s' % category)
+
+
+def ResetNolintSuppressions():
+  """Resets the set of NOLINT suppressions to empty."""
+  _error_suppressions.clear()
+
+
+def IsErrorSuppressedByNolint(category, linenum):
+  """Returns true if the specified error category is suppressed on this line.
+
+  Consults the global error_suppressions map populated by
+  ParseNolintSuppressions/ResetNolintSuppressions.
+
+  Args:
+    category: str, the category of the error.
+    linenum: int, the current line number.
+  Returns:
+    bool, True iff the error should be suppressed due to a NOLINT comment.
+  """
+  return (linenum in _error_suppressions.get(category, set()) or
+          linenum in _error_suppressions.get(None, set()))
+
+
+def Match(pattern, s):
+  """Matches the string with the pattern, caching the compiled regexp."""
+  # The regexp compilation caching is inlined in both Match and Search for
+  # performance reasons; factoring it out into a separate function turns out
+  # to be noticeably expensive.
+  if pattern not in _regexp_compile_cache:
+    _regexp_compile_cache[pattern] = sre_compile.compile(pattern)
+  return _regexp_compile_cache[pattern].match(s)
+
+
+def ReplaceAll(pattern, rep, s):
+  """Replaces instances of pattern in a string with a replacement.
+
+  The compiled regex is kept in a cache shared by Match and Search.
+
+  Args:
+    pattern: regex pattern
+    rep: replacement text
+    s: search string
+
+  Returns:
+    string with replacements made (or original string if no replacements)
+  """
+  if pattern not in _regexp_compile_cache:
+    _regexp_compile_cache[pattern] = sre_compile.compile(pattern)
+  return _regexp_compile_cache[pattern].sub(rep, s)
+
+
+def Search(pattern, s):
+  """Searches the string for the pattern, caching the compiled regexp."""
+  if pattern not in _regexp_compile_cache:
+    _regexp_compile_cache[pattern] = sre_compile.compile(pattern)
+  return _regexp_compile_cache[pattern].search(s)
+
+
+class _IncludeState(object):
+  """Tracks line numbers for includes, and the order in which includes appear.
+
+  include_list contains list of lists of (header, line number) pairs.
+  It's a lists of lists rather than just one flat list to make it
+  easier to update across preprocessor boundaries.
+
+  Call CheckNextIncludeOrder() once for each header in the file, passing
+  in the type constants defined above. Calls in an illegal order will
+  raise an _IncludeError with an appropriate error message.
+
+  """
+  # self._section will move monotonically through this set. If it ever
+  # needs to move backwards, CheckNextIncludeOrder will raise an error.
+  _INITIAL_SECTION = 0
+  _MY_H_SECTION = 1
+  _C_SECTION = 2
+  _CPP_SECTION = 3
+  _OTHER_H_SECTION = 4
+
+  _TYPE_NAMES = {
+      _C_SYS_HEADER: 'C system header',
+      _CPP_SYS_HEADER: 'C++ system header',
+      _LIKELY_MY_HEADER: 'header this file implements',
+      _POSSIBLE_MY_HEADER: 'header this file may implement',
+      _OTHER_HEADER: 'other header',
+      }
+  _SECTION_NAMES = {
+      _INITIAL_SECTION: "... nothing. (This can't be an error.)",
+      _MY_H_SECTION: 'a header this file implements',
+      _C_SECTION: 'C system header',
+      _CPP_SECTION: 'C++ system header',
+      _OTHER_H_SECTION: 'other header',
+      }
+
+  def __init__(self):
+    self.include_list = [[]]
+    self.ResetSection('')
+
+  def FindHeader(self, header):
+    """Check if a header has already been included.
+
+    Args:
+      header: header to check.
+    Returns:
+      Line number of previous occurrence, or -1 if the header has not
+      been seen before.
+    """
+    for section_list in self.include_list:
+      for f in section_list:
+        if f[0] == header:
+          return f[1]
+    return -1
+
+  def ResetSection(self, directive):
+    """Reset section checking for preprocessor directive.
+
+    Args:
+      directive: preprocessor directive (e.g. "if", "else").
+    """
+    # The name of the current section.
+    self._section = self._INITIAL_SECTION
+    # The path of last found header.
+    self._last_header = ''
+
+    # Update list of includes.  Note that we never pop from the
+    # include list.
+    if directive in ('if', 'ifdef', 'ifndef'):
+      self.include_list.append([])
+    elif directive in ('else', 'elif'):
+      self.include_list[-1] = []
+
+  def SetLastHeader(self, header_path):
+    self._last_header = header_path
+
+  def CanonicalizeAlphabeticalOrder(self, header_path):
+    """Returns a path canonicalized for alphabetical comparison.
+
+    - replaces "-" with "_" so they both cmp the same.
+    - removes '-inl' since we don't require them to be after the main header.
+    - lowercase everything, just in case.
+
+    Args:
+      header_path: Path to be canonicalized.
+
+    Returns:
+      Canonicalized path.
+    """
+    return header_path.replace('-inl.h', '.h').replace('-', '_').lower()
+
+  def IsInAlphabeticalOrder(self, clean_lines, linenum, header_path):
+    """Check if a header is in alphabetical order with the previous header.
+
+    Args:
+      clean_lines: A CleansedLines instance containing the file.
+      linenum: The number of the line to check.
+      header_path: Canonicalized header to be checked.
+
+    Returns:
+      Returns true if the header is in alphabetical order.
+    """
+    # If previous section is different from current section, _last_header will
+    # be reset to empty string, so it's always less than current header.
+    #
+    # If previous line was a blank line, assume that the headers are
+    # intentionally sorted the way they are.
+    if (self._last_header > header_path and
+        Match(r'^\s*#\s*include\b', clean_lines.elided[linenum - 1])):
+      return False
+    return True
+
+  def CheckNextIncludeOrder(self, header_type):
+    """Returns a non-empty error message if the next header is out of order.
+
+    This function also updates the internal state to be ready to check
+    the next include.
+
+    Args:
+      header_type: One of the _XXX_HEADER constants defined above.
+
+    Returns:
+      The empty string if the header is in the right order, or an
+      error message describing what's wrong.
+
+    """
+    error_message = ('Found %s after %s' %
+                     (self._TYPE_NAMES[header_type],
+                      self._SECTION_NAMES[self._section]))
+
+    last_section = self._section
+
+    if header_type == _C_SYS_HEADER:
+      if self._section <= self._C_SECTION:
+        self._section = self._C_SECTION
+      else:
+        self._last_header = ''
+        return error_message
+    elif header_type == _CPP_SYS_HEADER:
+      if self._section <= self._CPP_SECTION:
+        self._section = self._CPP_SECTION
+      else:
+        self._last_header = ''
+        return error_message
+    elif header_type == _LIKELY_MY_HEADER:
+      if self._section <= self._MY_H_SECTION:
+        self._section = self._MY_H_SECTION
+      else:
+        self._section = self._OTHER_H_SECTION
+    elif header_type == _POSSIBLE_MY_HEADER:
+      if self._section <= self._MY_H_SECTION:
+        self._section = self._MY_H_SECTION
+      else:
+        # This will always be the fallback because we're not sure
+        # enough that the header is associated with this file.
+        self._section = self._OTHER_H_SECTION
+    else:
+      assert header_type == _OTHER_HEADER
+      self._section = self._OTHER_H_SECTION
+
+    if last_section != self._section:
+      self._last_header = ''
+
+    return ''
+
+
+class _CppLintState(object):
+  """Maintains module-wide state.."""
+
+  def __init__(self):
+    self.verbose_level = 1  # global setting.
+    self.error_count = 0    # global count of reported errors
+    # filters to apply when emitting error messages
+    self.filters = _DEFAULT_FILTERS[:]
+    # backup of filter list. Used to restore the state after each file.
+    self._filters_backup = self.filters[:]
+    self.counting = 'total'  # In what way are we counting errors?
+    self.errors_by_category = {}  # string to int dict storing error counts
+
+    # output format:
+    # "emacs" - format that emacs can parse (default)
+    # "vs7" - format that Microsoft Visual Studio 7 can parse
+    self.output_format = 'emacs'
+
+  def SetOutputFormat(self, output_format):
+    """Sets the output format for errors."""
+    self.output_format = output_format
+
+  def SetVerboseLevel(self, level):
+    """Sets the module's verbosity, and returns the previous setting."""
+    last_verbose_level = self.verbose_level
+    self.verbose_level = level
+    return last_verbose_level
+
+  def SetCountingStyle(self, counting_style):
+    """Sets the module's counting options."""
+    self.counting = counting_style
+
+  def SetFilters(self, filters):
+    """Sets the error-message filters.
+
+    These filters are applied when deciding whether to emit a given
+    error message.
+
+    Args:
+      filters: A string of comma-separated filters (eg "+whitespace/indent").
+               Each filter should start with + or -; else we die.
+
+    Raises:
+      ValueError: The comma-separated filters did not all start with '+' or '-'.
+                  E.g. "-,+whitespace,-whitespace/indent,whitespace/badfilter"
+    """
+    # Default filters always have less priority than the flag ones.
+    self.filters = _DEFAULT_FILTERS[:]
+    self.AddFilters(filters)
+
+  def AddFilters(self, filters):
+    """ Adds more filters to the existing list of error-message filters. """
+    for filt in filters.split(','):
+      clean_filt = filt.strip()
+      if clean_filt:
+        self.filters.append(clean_filt)
+    for filt in self.filters:
+      if not (filt.startswith('+') or filt.startswith('-')):
+        raise ValueError('Every filter in --filters must start with + or -'
+                         ' (%s does not)' % filt)
+
+  def BackupFilters(self):
+    """ Saves the current filter list to backup storage."""
+    self._filters_backup = self.filters[:]
+
+  def RestoreFilters(self):
+    """ Restores filters previously backed up."""
+    self.filters = self._filters_backup[:]
+
+  def ResetErrorCounts(self):
+    """Sets the module's error statistic back to zero."""
+    self.error_count = 0
+    self.errors_by_category = {}
+
+  def IncrementErrorCount(self, category):
+    """Bumps the module's error statistic."""
+    self.error_count += 1
+    if self.counting in ('toplevel', 'detailed'):
+      if self.counting != 'detailed':
+        category = category.split('/')[0]
+      if category not in self.errors_by_category:
+        self.errors_by_category[category] = 0
+      self.errors_by_category[category] += 1
+
+  def PrintErrorCounts(self):
+    """Print a summary of errors by category, and the total."""
+    for category, count in self.errors_by_category.iteritems():
+      sys.stderr.write('Category \'%s\' errors found: %d\n' %
+                       (category, count))
+    sys.stderr.write('Total errors found: %d\n' % self.error_count)
+
+_cpplint_state = _CppLintState()
+
+
+def _OutputFormat():
+  """Gets the module's output format."""
+  return _cpplint_state.output_format
+
+
+def _SetOutputFormat(output_format):
+  """Sets the module's output format."""
+  _cpplint_state.SetOutputFormat(output_format)
+
+
+def _VerboseLevel():
+  """Returns the module's verbosity setting."""
+  return _cpplint_state.verbose_level
+
+
+def _SetVerboseLevel(level):
+  """Sets the module's verbosity, and returns the previous setting."""
+  return _cpplint_state.SetVerboseLevel(level)
+
+
+def _SetCountingStyle(level):
+  """Sets the module's counting options."""
+  _cpplint_state.SetCountingStyle(level)
+
+
+def _Filters():
+  """Returns the module's list of output filters, as a list."""
+  return _cpplint_state.filters
+
+
+def _SetFilters(filters):
+  """Sets the module's error-message filters.
+
+  These filters are applied when deciding whether to emit a given
+  error message.
+
+  Args:
+    filters: A string of comma-separated filters (eg "whitespace/indent").
+             Each filter should start with + or -; else we die.
+  """
+  _cpplint_state.SetFilters(filters)
+
+def _AddFilters(filters):
+  """Adds more filter overrides.
+
+  Unlike _SetFilters, this function does not reset the current list of filters
+  available.
+
+  Args:
+    filters: A string of comma-separated filters (eg "whitespace/indent").
+             Each filter should start with + or -; else we die.
+  """
+  _cpplint_state.AddFilters(filters)
+
+def _BackupFilters():
+  """ Saves the current filter list to backup storage."""
+  _cpplint_state.BackupFilters()
+
+def _RestoreFilters():
+  """ Restores filters previously backed up."""
+  _cpplint_state.RestoreFilters()
+
+class _FunctionState(object):
+  """Tracks current function name and the number of lines in its body."""
+
+  _NORMAL_TRIGGER = 250  # for --v=0, 500 for --v=1, etc.
+  _TEST_TRIGGER = 400    # about 50% more than _NORMAL_TRIGGER.
+
+  def __init__(self):
+    self.in_a_function = False
+    self.lines_in_function = 0
+    self.current_function = ''
+
+  def Begin(self, function_name):
+    """Start analyzing function body.
+
+    Args:
+      function_name: The name of the function being tracked.
+    """
+    self.in_a_function = True
+    self.lines_in_function = 0
+    self.current_function = function_name
+
+  def Count(self):
+    """Count line in current function body."""
+    if self.in_a_function:
+      self.lines_in_function += 1
+
+  def Check(self, error, filename, linenum):
+    """Report if too many lines in function body.
+
+    Args:
+      error: The function to call with any errors found.
+      filename: The name of the current file.
+      linenum: The number of the line to check.
+    """
+    if Match(r'T(EST|est)', self.current_function):
+      base_trigger = self._TEST_TRIGGER
+    else:
+      base_trigger = self._NORMAL_TRIGGER
+    trigger = base_trigger * 2**_VerboseLevel()
+
+    if self.lines_in_function > trigger:
+      error_level = int(math.log(self.lines_in_function / base_trigger, 2))
+      # 50 => 0, 100 => 1, 200 => 2, 400 => 3, 800 => 4, 1600 => 5, ...
+      if error_level > 5:
+        error_level = 5
+      error(filename, linenum, 'readability/fn_size', error_level,
+            'Small and focused functions are preferred:'
+            ' %s has %d non-comment lines'
+            ' (error triggered by exceeding %d lines).'  % (
+                self.current_function, self.lines_in_function, trigger))
+
+  def End(self):
+    """Stop analyzing function body."""
+    self.in_a_function = False
+
+
+class _IncludeError(Exception):
+  """Indicates a problem with the include order in a file."""
+  pass
+
+
+class FileInfo(object):
+  """Provides utility functions for filenames.
+
+  FileInfo provides easy access to the components of a file's path
+  relative to the project root.
+  """
+
+  def __init__(self, filename):
+    self._filename = filename
+
+  def FullName(self):
+    """Make Windows paths like Unix."""
+    return os.path.abspath(self._filename).replace('\\', '/')
+
+  def RepositoryName(self):
+    """FullName after removing the local path to the repository.
+
+    If we have a real absolute path name here we can try to do something smart:
+    detecting the root of the checkout and truncating /path/to/checkout from
+    the name so that we get header guards that don't include things like
+    "C:\Documents and Settings\..." or "/home/username/..." in them and thus
+    people on different computers who have checked the source out to different
+    locations won't see bogus errors.
+    """
+    fullname = self.FullName()
+
+    if os.path.exists(fullname):
+      project_dir = os.path.dirname(fullname)
+
+      if os.path.exists(os.path.join(project_dir, ".svn")):
+        # If there's a .svn file in the current directory, we recursively look
+        # up the directory tree for the top of the SVN checkout
+        root_dir = project_dir
+        one_up_dir = os.path.dirname(root_dir)
+        while os.path.exists(os.path.join(one_up_dir, ".svn")):
+          root_dir = os.path.dirname(root_dir)
+          one_up_dir = os.path.dirname(one_up_dir)
+
+        prefix = os.path.commonprefix([root_dir, project_dir])
+        return fullname[len(prefix) + 1:]
+
+      # Not SVN <= 1.6? Try to find a git, hg, or svn top level directory by
+      # searching up from the current path.
+      root_dir = os.path.dirname(fullname)
+      while (root_dir != os.path.dirname(root_dir) and
+             not os.path.exists(os.path.join(root_dir, ".git")) and
+             not os.path.exists(os.path.join(root_dir, ".hg")) and
+             not os.path.exists(os.path.join(root_dir, ".svn"))):
+        root_dir = os.path.dirname(root_dir)
+
+      if (os.path.exists(os.path.join(root_dir, ".git")) or
+          os.path.exists(os.path.join(root_dir, ".hg")) or
+          os.path.exists(os.path.join(root_dir, ".svn"))):
+        prefix = os.path.commonprefix([root_dir, project_dir])
+        return fullname[len(prefix) + 1:]
+
+    # Don't know what to do; header guard warnings may be wrong...
+    return fullname
+
+  def Split(self):
+    """Splits the file into the directory, basename, and extension.
+
+    For 'chrome/browser/browser.cc', Split() would
+    return ('chrome/browser', 'browser', '.cc')
+
+    Returns:
+      A tuple of (directory, basename, extension).
+    """
+
+    googlename = self.RepositoryName()
+    project, rest = os.path.split(googlename)
+    return (project,) + os.path.splitext(rest)
+
+  def BaseName(self):
+    """File base name - text after the final slash, before the final period."""
+    return self.Split()[1]
+
+  def Extension(self):
+    """File extension - text following the final period."""
+    return self.Split()[2]
+
+  def NoExtension(self):
+    """File has no source file extension."""
+    return '/'.join(self.Split()[0:2])
+
+  def IsSource(self):
+    """File has a source file extension."""
+    return self.Extension()[1:] in ('c', 'cc', 'cpp', 'cxx')
+
+
+def _ShouldPrintError(category, confidence, linenum):
+  """If confidence >= verbose, category passes filter and is not suppressed."""
+
+  # There are three ways we might decide not to print an error message:
+  # a "NOLINT(category)" comment appears in the source,
+  # the verbosity level isn't high enough, or the filters filter it out.
+  if IsErrorSuppressedByNolint(category, linenum):
+    return False
+
+  if confidence < _cpplint_state.verbose_level:
+    return False
+
+  is_filtered = False
+  for one_filter in _Filters():
+    if one_filter.startswith('-'):
+      if category.startswith(one_filter[1:]):
+        is_filtered = True
+    elif one_filter.startswith('+'):
+      if category.startswith(one_filter[1:]):
+        is_filtered = False
+    else:
+      assert False  # should have been checked for in SetFilter.
+  if is_filtered:
+    return False
+
+  return True
+
+
+def Error(filename, linenum, category, confidence, message):
+  """Logs the fact we've found a lint error.
+
+  We log where the error was found, and also our confidence in the error,
+  that is, how certain we are this is a legitimate style regression, and
+  not a misidentification or a use that's sometimes justified.
+
+  False positives can be suppressed by the use of
+  "cpplint(category)"  comments on the offending line.  These are
+  parsed into _error_suppressions.
+
+  Args:
+    filename: The name of the file containing the error.
+    linenum: The number of the line containing the error.
+    category: A string used to describe the "category" this bug
+      falls under: "whitespace", say, or "runtime".  Categories
+      may have a hierarchy separated by slashes: "whitespace/indent".
+    confidence: A number from 1-5 representing a confidence score for
+      the error, with 5 meaning that we are certain of the problem,
+      and 1 meaning that it could be a legitimate construct.
+    message: The error message.
+  """
+  if _ShouldPrintError(category, confidence, linenum):
+    _cpplint_state.IncrementErrorCount(category)
+    if _cpplint_state.output_format == 'vs7':
+      sys.stderr.write('%s(%s):  %s  [%s] [%d]\n' % (
+          filename, linenum, message, category, confidence))
+    elif _cpplint_state.output_format == 'eclipse':
+      sys.stderr.write('%s:%s: warning: %s  [%s] [%d]\n' % (
+          filename, linenum, message, category, confidence))
+    else:
+      sys.stderr.write('%s:%s:  %s  [%s] [%d]\n' % (
+          filename, linenum, message, category, confidence))
+
+
+# Matches standard C++ escape sequences per 2.13.2.3 of the C++ standard.
+_RE_PATTERN_CLEANSE_LINE_ESCAPES = re.compile(
+    r'\\([abfnrtv?"\\\']|\d+|x[0-9a-fA-F]+)')
+# Match a single C style comment on the same line.
+_RE_PATTERN_C_COMMENTS = r'/\*(?:[^*]|\*(?!/))*\*/'
+# Matches multi-line C style comments.
+# This RE is a little bit more complicated than one might expect, because we
+# have to take care of space removals tools so we can handle comments inside
+# statements better.
+# The current rule is: We only clear spaces from both sides when we're at the
+# end of the line. Otherwise, we try to remove spaces from the right side,
+# if this doesn't work we try on left side but only if there's a non-character
+# on the right.
+_RE_PATTERN_CLEANSE_LINE_C_COMMENTS = re.compile(
+    r'(\s*' + _RE_PATTERN_C_COMMENTS + r'\s*$|' +
+    _RE_PATTERN_C_COMMENTS + r'\s+|' +
+    r'\s+' + _RE_PATTERN_C_COMMENTS + r'(?=\W)|' +
+    _RE_PATTERN_C_COMMENTS + r')')
+
+
+def IsCppString(line):
+  """Does line terminate so, that the next symbol is in string constant.
+
+  This function does not consider single-line nor multi-line comments.
+
+  Args:
+    line: is a partial line of code starting from the 0..n.
+
+  Returns:
+    True, if next character appended to 'line' is inside a
+    string constant.
+  """
+
+  line = line.replace(r'\\', 'XX')  # after this, \\" does not match to \"
+  return ((line.count('"') - line.count(r'\"') - line.count("'\"'")) & 1) == 1
+
+
+def CleanseRawStrings(raw_lines):
+  """Removes C++11 raw strings from lines.
+
+    Before:
+      static const char kData[] = R"(
+          multi-line string
+          )";
+
+    After:
+      static const char kData[] = ""
+          (replaced by blank line)
+          "";
+
+  Args:
+    raw_lines: list of raw lines.
+
+  Returns:
+    list of lines with C++11 raw strings replaced by empty strings.
+  """
+
+  delimiter = None
+  lines_without_raw_strings = []
+  for line in raw_lines:
+    if delimiter:
+      # Inside a raw string, look for the end
+      end = line.find(delimiter)
+      if end >= 0:
+        # Found the end of the string, match leading space for this
+        # line and resume copying the original lines, and also insert
+        # a "" on the last line.
+        leading_space = Match(r'^(\s*)\S', line)
+        line = leading_space.group(1) + '""' + line[end + len(delimiter):]
+        delimiter = None
+      else:
+        # Haven't found the end yet, append a blank line.
+        line = '""'
+
+    # Look for beginning of a raw string, and replace them with
+    # empty strings.  This is done in a loop to handle multiple raw
+    # strings on the same line.
+    while delimiter is None:
+      # Look for beginning of a raw string.
+      # See 2.14.15 [lex.string] for syntax.
+      matched = Match(r'^(.*)\b(?:R|u8R|uR|UR|LR)"([^\s\\()]*)\((.*)$', line)
+      if matched:
+        delimiter = ')' + matched.group(2) + '"'
+
+        end = matched.group(3).find(delimiter)
+        if end >= 0:
+          # Raw string ended on same line
+          line = (matched.group(1) + '""' +
+                  matched.group(3)[end + len(delimiter):])
+          delimiter = None
+        else:
+          # Start of a multi-line raw string
+          line = matched.group(1) + '""'
+      else:
+        break
+
+    lines_without_raw_strings.append(line)
+
+  # TODO(unknown): if delimiter is not None here, we might want to
+  # emit a warning for unterminated string.
+  return lines_without_raw_strings
+
+
+def FindNextMultiLineCommentStart(lines, lineix):
+  """Find the beginning marker for a multiline comment."""
+  while lineix < len(lines):
+    if lines[lineix].strip().startswith('/*'):
+      # Only return this marker if the comment goes beyond this line
+      if lines[lineix].strip().find('*/', 2) < 0:
+        return lineix
+    lineix += 1
+  return len(lines)
+
+
+def FindNextMultiLineCommentEnd(lines, lineix):
+  """We are inside a comment, find the end marker."""
+  while lineix < len(lines):
+    if lines[lineix].strip().endswith('*/'):
+      return lineix
+    lineix += 1
+  return len(lines)
+
+
+def RemoveMultiLineCommentsFromRange(lines, begin, end):
+  """Clears a range of lines for multi-line comments."""
+  # Having // dummy comments makes the lines non-empty, so we will not get
+  # unnecessary blank line warnings later in the code.
+  for i in range(begin, end):
+    lines[i] = '/**/'
+
+
+def RemoveMultiLineComments(filename, lines, error):
+  """Removes multiline (c-style) comments from lines."""
+  lineix = 0
+  while lineix < len(lines):
+    lineix_begin = FindNextMultiLineCommentStart(lines, lineix)
+    if lineix_begin >= len(lines):
+      return
+    lineix_end = FindNextMultiLineCommentEnd(lines, lineix_begin)
+    if lineix_end >= len(lines):
+      error(filename, lineix_begin + 1, 'readability/multiline_comment', 5,
+            'Could not find end of multi-line comment')
+      return
+    RemoveMultiLineCommentsFromRange(lines, lineix_begin, lineix_end + 1)
+    lineix = lineix_end + 1
+
+
+def CleanseComments(line):
+  """Removes //-comments and single-line C-style /* */ comments.
+
+  Args:
+    line: A line of C++ source.
+
+  Returns:
+    The line with single-line comments removed.
+  """
+  commentpos = line.find('//')
+  if commentpos != -1 and not IsCppString(line[:commentpos]):
+    line = line[:commentpos].rstrip()
+  # get rid of /* ... */
+  return _RE_PATTERN_CLEANSE_LINE_C_COMMENTS.sub('', line)
+
+
+class CleansedLines(object):
+  """Holds 4 copies of all lines with different preprocessing applied to them.
+
+  1) elided member contains lines without strings and comments.
+  2) lines member contains lines without comments.
+  3) raw_lines member contains all the lines without processing.
+  4) lines_without_raw_strings member is same as raw_lines, but with C++11 raw
+     strings removed.
+  All these members are of <type 'list'>, and of the same length.
+  """
+
+  def __init__(self, lines):
+    self.elided = []
+    self.lines = []
+    self.raw_lines = lines
+    self.num_lines = len(lines)
+    self.lines_without_raw_strings = CleanseRawStrings(lines)
+    for linenum in range(len(self.lines_without_raw_strings)):
+      self.lines.append(CleanseComments(
+          self.lines_without_raw_strings[linenum]))
+      elided = self._CollapseStrings(self.lines_without_raw_strings[linenum])
+      self.elided.append(CleanseComments(elided))
+
+  def NumLines(self):
+    """Returns the number of lines represented."""
+    return self.num_lines
+
+  @staticmethod
+  def _CollapseStrings(elided):
+    """Collapses strings and chars on a line to simple "" or '' blocks.
+
+    We nix strings first so we're not fooled by text like '"http://"'
+
+    Args:
+      elided: The line being processed.
+
+    Returns:
+      The line with collapsed strings.
+    """
+    if _RE_PATTERN_INCLUDE.match(elided):
+      return elided
+
+    # Remove escaped characters first to make quote/single quote collapsing
+    # basic.  Things that look like escaped characters shouldn't occur
+    # outside of strings and chars.
+    elided = _RE_PATTERN_CLEANSE_LINE_ESCAPES.sub('', elided)
+
+    # Replace quoted strings and digit separators.  Both single quotes
+    # and double quotes are processed in the same loop, otherwise
+    # nested quotes wouldn't work.
+    collapsed = ''
+    while True:
+      # Find the first quote character
+      match = Match(r'^([^\'"]*)([\'"])(.*)$', elided)
+      if not match:
+        collapsed += elided
+        break
+      head, quote, tail = match.groups()
+
+      if quote == '"':
+        # Collapse double quoted strings
+        second_quote = tail.find('"')
+        if second_quote >= 0:
+          collapsed += head + '""'
+          elided = tail[second_quote + 1:]
+        else:
+          # Unmatched double quote, don't bother processing the rest
+          # of the line since this is probably a multiline string.
+          collapsed += elided
+          break
+      else:
+        # Found single quote, check nearby text to eliminate digit separators.
+        #
+        # There is no special handling for floating point here, because
+        # the integer/fractional/exponent parts would all be parsed
+        # correctly as long as there are digits on both sides of the
+        # separator.  So we are fine as long as we don't see something
+        # like "0.'3" (gcc 4.9.0 will not allow this literal).
+        if Search(r'\b(?:0[bBxX]?|[1-9])[0-9a-fA-F]*$', head):
+          match_literal = Match(r'^((?:\'?[0-9a-zA-Z_])*)(.*)$', "'" + tail)
+          collapsed += head + match_literal.group(1).replace("'", '')
+          elided = match_literal.group(2)
+        else:
+          second_quote = tail.find('\'')
+          if second_quote >= 0:
+            collapsed += head + "''"
+            elided = tail[second_quote + 1:]
+          else:
+            # Unmatched single quote
+            collapsed += elided
+            break
+
+    return collapsed
+
+
+def FindEndOfExpressionInLine(line, startpos, stack):
+  """Find the position just after the end of current parenthesized expression.
+
+  Args:
+    line: a CleansedLines line.
+    startpos: start searching at this position.
+    stack: nesting stack at startpos.
+
+  Returns:
+    On finding matching end: (index just after matching end, None)
+    On finding an unclosed expression: (-1, None)
+    Otherwise: (-1, new stack at end of this line)
+  """
+  for i in xrange(startpos, len(line)):
+    char = line[i]
+    if char in '([{':
+      # Found start of parenthesized expression, push to expression stack
+      stack.append(char)
+    elif char == '<':
+      # Found potential start of template argument list
+      if i > 0 and line[i - 1] == '<':
+        # Left shift operator
+        if stack and stack[-1] == '<':
+          stack.pop()
+          if not stack:
+            return (-1, None)
+      elif i > 0 and Search(r'\boperator\s*$', line[0:i]):
+        # operator<, don't add to stack
+        continue
+      else:
+        # Tentative start of template argument list
+        stack.append('<')
+    elif char in ')]}':
+      # Found end of parenthesized expression.
+      #
+      # If we are currently expecting a matching '>', the pending '<'
+      # must have been an operator.  Remove them from expression stack.
+      while stack and stack[-1] == '<':
+        stack.pop()
+      if not stack:
+        return (-1, None)
+      if ((stack[-1] == '(' and char == ')') or
+          (stack[-1] == '[' and char == ']') or
+          (stack[-1] == '{' and char == '}')):
+        stack.pop()
+        if not stack:
+          return (i + 1, None)
+      else:
+        # Mismatched parentheses
+        return (-1, None)
+    elif char == '>':
+      # Found potential end of template argument list.
+
+      # Ignore "->" and operator functions
+      if (i > 0 and
+          (line[i - 1] == '-' or Search(r'\boperator\s*$', line[0:i - 1]))):
+        continue
+
+      # Pop the stack if there is a matching '<'.  Otherwise, ignore
+      # this '>' since it must be an operator.
+      if stack:
+        if stack[-1] == '<':
+          stack.pop()
+          if not stack:
+            return (i + 1, None)
+    elif char == ';':
+      # Found something that look like end of statements.  If we are currently
+      # expecting a '>', the matching '<' must have been an operator, since
+      # template argument list should not contain statements.
+      while stack and stack[-1] == '<':
+        stack.pop()
+      if not stack:
+        return (-1, None)
+
+  # Did not find end of expression or unbalanced parentheses on this line
+  return (-1, stack)
+
+
+def CloseExpression(clean_lines, linenum, pos):
+  """If input points to ( or { or [ or <, finds the position that closes it.
+
+  If lines[linenum][pos] points to a '(' or '{' or '[' or '<', finds the
+  linenum/pos that correspond to the closing of the expression.
+
+  TODO(unknown): cpplint spends a fair bit of time matching parentheses.
+  Ideally we would want to index all opening and closing parentheses once
+  and have CloseExpression be just a simple lookup, but due to preprocessor
+  tricks, this is not so easy.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    pos: A position on the line.
+
+  Returns:
+    A tuple (line, linenum, pos) pointer *past* the closing brace, or
+    (line, len(lines), -1) if we never find a close.  Note we ignore
+    strings and comments when matching; and the line we return is the
+    'cleansed' line at linenum.
+  """
+
+  line = clean_lines.elided[linenum]
+  if (line[pos] not in '({[<') or Match(r'<[<=]', line[pos:]):
+    return (line, clean_lines.NumLines(), -1)
+
+  # Check first line
+  (end_pos, stack) = FindEndOfExpressionInLine(line, pos, [])
+  if end_pos > -1:
+    return (line, linenum, end_pos)
+
+  # Continue scanning forward
+  while stack and linenum < clean_lines.NumLines() - 1:
+    linenum += 1
+    line = clean_lines.elided[linenum]
+    (end_pos, stack) = FindEndOfExpressionInLine(line, 0, stack)
+    if end_pos > -1:
+      return (line, linenum, end_pos)
+
+  # Did not find end of expression before end of file, give up
+  return (line, clean_lines.NumLines(), -1)
+
+
+def FindStartOfExpressionInLine(line, endpos, stack):
+  """Find position at the matching start of current expression.
+
+  This is almost the reverse of FindEndOfExpressionInLine, but note
+  that the input position and returned position differs by 1.
+
+  Args:
+    line: a CleansedLines line.
+    endpos: start searching at this position.
+    stack: nesting stack at endpos.
+
+  Returns:
+    On finding matching start: (index at matching start, None)
+    On finding an unclosed expression: (-1, None)
+    Otherwise: (-1, new stack at beginning of this line)
+  """
+  i = endpos
+  while i >= 0:
+    char = line[i]
+    if char in ')]}':
+      # Found end of expression, push to expression stack
+      stack.append(char)
+    elif char == '>':
+      # Found potential end of template argument list.
+      #
+      # Ignore it if it's a "->" or ">=" or "operator>"
+      if (i > 0 and
+          (line[i - 1] == '-' or
+           Match(r'\s>=\s', line[i - 1:]) or
+           Search(r'\boperator\s*$', line[0:i]))):
+        i -= 1
+      else:
+        stack.append('>')
+    elif char == '<':
+      # Found potential start of template argument list
+      if i > 0 and line[i - 1] == '<':
+        # Left shift operator
+        i -= 1
+      else:
+        # If there is a matching '>', we can pop the expression stack.
+        # Otherwise, ignore this '<' since it must be an operator.
+        if stack and stack[-1] == '>':
+          stack.pop()
+          if not stack:
+            return (i, None)
+    elif char in '([{':
+      # Found start of expression.
+      #
+      # If there are any unmatched '>' on the stack, they must be
+      # operators.  Remove those.
+      while stack and stack[-1] == '>':
+        stack.pop()
+      if not stack:
+        return (-1, None)
+      if ((char == '(' and stack[-1] == ')') or
+          (char == '[' and stack[-1] == ']') or
+          (char == '{' and stack[-1] == '}')):
+        stack.pop()
+        if not stack:
+          return (i, None)
+      else:
+        # Mismatched parentheses
+        return (-1, None)
+    elif char == ';':
+      # Found something that look like end of statements.  If we are currently
+      # expecting a '<', the matching '>' must have been an operator, since
+      # template argument list should not contain statements.
+      while stack and stack[-1] == '>':
+        stack.pop()
+      if not stack:
+        return (-1, None)
+
+    i -= 1
+
+  return (-1, stack)
+
+
+def ReverseCloseExpression(clean_lines, linenum, pos):
+  """If input points to ) or } or ] or >, finds the position that opens it.
+
+  If lines[linenum][pos] points to a ')' or '}' or ']' or '>', finds the
+  linenum/pos that correspond to the opening of the expression.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    pos: A position on the line.
+
+  Returns:
+    A tuple (line, linenum, pos) pointer *at* the opening brace, or
+    (line, 0, -1) if we never find the matching opening brace.  Note
+    we ignore strings and comments when matching; and the line we
+    return is the 'cleansed' line at linenum.
+  """
+  line = clean_lines.elided[linenum]
+  if line[pos] not in ')}]>':
+    return (line, 0, -1)
+
+  # Check last line
+  (start_pos, stack) = FindStartOfExpressionInLine(line, pos, [])
+  if start_pos > -1:
+    return (line, linenum, start_pos)
+
+  # Continue scanning backward
+  while stack and linenum > 0:
+    linenum -= 1
+    line = clean_lines.elided[linenum]
+    (start_pos, stack) = FindStartOfExpressionInLine(line, len(line) - 1, stack)
+    if start_pos > -1:
+      return (line, linenum, start_pos)
+
+  # Did not find start of expression before beginning of file, give up
+  return (line, 0, -1)
+
+
+def CheckForCopyright(filename, lines, error):
+  """Logs an error if no Copyright message appears at the top of the file."""
+
+  # We'll say it should occur by line 10. Don't forget there's a
+  # dummy line at the front.
+  for line in xrange(1, min(len(lines), 11)):
+    if re.search(r'Copyright', lines[line], re.I): break
+  else:                       # means no copyright line was found
+    error(filename, 0, 'legal/copyright', 5,
+          'No copyright message found.  '
+          'You should have a line: "Copyright [year] <Copyright Owner>"')
+
+
+def GetIndentLevel(line):
+  """Return the number of leading spaces in line.
+
+  Args:
+    line: A string to check.
+
+  Returns:
+    An integer count of leading spaces, possibly zero.
+  """
+  indent = Match(r'^( *)\S', line)
+  if indent:
+    return len(indent.group(1))
+  else:
+    return 0
+
+
+def GetHeaderGuardCPPVariable(filename):
+  """Returns the CPP variable that should be used as a header guard.
+
+  Args:
+    filename: The name of a C++ header file.
+
+  Returns:
+    The CPP variable that should be used as a header guard in the
+    named file.
+
+  """
+
+  # Restores original filename in case that cpplint is invoked from Emacs's
+  # flymake.
+  filename = re.sub(r'_flymake\.h$', '.h', filename)
+  filename = re.sub(r'/\.flymake/([^/]*)$', r'/\1', filename)
+  # Replace 'c++' with 'cpp'.
+  filename = filename.replace('C++', 'cpp').replace('c++', 'cpp')
+  
+  fileinfo = FileInfo(filename)
+  file_path_from_root = fileinfo.RepositoryName()
+  if _root:
+    file_path_from_root = re.sub('^' + _root + os.sep, '', file_path_from_root)
+  return re.sub(r'[^a-zA-Z0-9]', '_', file_path_from_root).upper() + '_'
+
+
+def CheckForHeaderGuard(filename, clean_lines, error):
+  """Checks that the file contains a header guard.
+
+  Logs an error if no #ifndef header guard is present.  For other
+  headers, checks that the full pathname is used.
+
+  Args:
+    filename: The name of the C++ header file.
+    clean_lines: A CleansedLines instance containing the file.
+    error: The function to call with any errors found.
+  """
+
+  # Don't check for header guards if there are error suppression
+  # comments somewhere in this file.
+  #
+  # Because this is silencing a warning for a nonexistent line, we
+  # only support the very specific NOLINT(build/header_guard) syntax,
+  # and not the general NOLINT or NOLINT(*) syntax.
+  raw_lines = clean_lines.lines_without_raw_strings
+  for i in raw_lines:
+    if Search(r'//\s*NOLINT\(build/header_guard\)', i):
+      return
+
+  cppvar = GetHeaderGuardCPPVariable(filename)
+
+  ifndef = ''
+  ifndef_linenum = 0
+  define = ''
+  endif = ''
+  endif_linenum = 0
+  for linenum, line in enumerate(raw_lines):
+    linesplit = line.split()
+    if len(linesplit) >= 2:
+      # find the first occurrence of #ifndef and #define, save arg
+      if not ifndef and linesplit[0] == '#ifndef':
+        # set ifndef to the header guard presented on the #ifndef line.
+        ifndef = linesplit[1]
+        ifndef_linenum = linenum
+      if not define and linesplit[0] == '#define':
+        define = linesplit[1]
+    # find the last occurrence of #endif, save entire line
+    if line.startswith('#endif'):
+      endif = line
+      endif_linenum = linenum
+
+  if not ifndef or not define or ifndef != define:
+    error(filename, 0, 'build/header_guard', 5,
+          'No #ifndef header guard found, suggested CPP variable is: %s' %
+          cppvar)
+    return
+
+  # The guard should be PATH_FILE_H_, but we also allow PATH_FILE_H__
+  # for backward compatibility.
+  if ifndef != cppvar:
+    error_level = 0
+    if ifndef != cppvar + '_':
+      error_level = 5
+
+    ParseNolintSuppressions(filename, raw_lines[ifndef_linenum], ifndef_linenum,
+                            error)
+    error(filename, ifndef_linenum, 'build/header_guard', error_level,
+          '#ifndef header guard has wrong style, please use: %s' % cppvar)
+
+  # Check for "//" comments on endif line.
+  ParseNolintSuppressions(filename, raw_lines[endif_linenum], endif_linenum,
+                          error)
+  match = Match(r'#endif\s*//\s*' + cppvar + r'(_)?\b', endif)
+  if match:
+    if match.group(1) == '_':
+      # Issue low severity warning for deprecated double trailing underscore
+      error(filename, endif_linenum, 'build/header_guard', 0,
+            '#endif line should be "#endif  // %s"' % cppvar)
+    return
+
+  # Didn't find the corresponding "//" comment.  If this file does not
+  # contain any "//" comments at all, it could be that the compiler
+  # only wants "/**/" comments, look for those instead.
+  no_single_line_comments = True
+  for i in xrange(1, len(raw_lines) - 1):
+    line = raw_lines[i]
+    if Match(r'^(?:(?:\'(?:\.|[^\'])*\')|(?:"(?:\.|[^"])*")|[^\'"])*//', line):
+      no_single_line_comments = False
+      break
+
+  if no_single_line_comments:
+    match = Match(r'#endif\s*/\*\s*' + cppvar + r'(_)?\s*\*/', endif)
+    if match:
+      if match.group(1) == '_':
+        # Low severity warning for double trailing underscore
+        error(filename, endif_linenum, 'build/header_guard', 0,
+              '#endif line should be "#endif  /* %s */"' % cppvar)
+      return
+
+  # Didn't find anything
+  error(filename, endif_linenum, 'build/header_guard', 5,
+        '#endif line should be "#endif  // %s"' % cppvar)
+
+
+def CheckHeaderFileIncluded(filename, include_state, error):
+  """Logs an error if a .cc file does not include its header."""
+
+  # Do not check test files
+  if filename.endswith('_test.cc') or filename.endswith('_unittest.cc'):
+    return
+
+  fileinfo = FileInfo(filename)
+  headerfile = filename[0:len(filename) - 2] + 'h'
+  if not os.path.exists(headerfile):
+    return
+  headername = FileInfo(headerfile).RepositoryName()
+  first_include = 0
+  for section_list in include_state.include_list:
+    for f in section_list:
+      if headername in f[0] or f[0] in headername:
+        return
+      if not first_include:
+        first_include = f[1]
+
+  error(filename, first_include, 'build/include', 5,
+        '%s should include its header file %s' % (fileinfo.RepositoryName(),
+                                                  headername))
+
+
+def CheckForBadCharacters(filename, lines, error):
+  """Logs an error for each line containing bad characters.
+
+  Two kinds of bad characters:
+
+  1. Unicode replacement characters: These indicate that either the file
+  contained invalid UTF-8 (likely) or Unicode replacement characters (which
+  it shouldn't).  Note that it's possible for this to throw off line
+  numbering if the invalid UTF-8 occurred adjacent to a newline.
+
+  2. NUL bytes.  These are problematic for some tools.
+
+  Args:
+    filename: The name of the current file.
+    lines: An array of strings, each representing a line of the file.
+    error: The function to call with any errors found.
+  """
+  for linenum, line in enumerate(lines):
+    if u'\ufffd' in line:
+      error(filename, linenum, 'readability/utf8', 5,
+            'Line contains invalid UTF-8 (or Unicode replacement character).')
+    if '\0' in line:
+      error(filename, linenum, 'readability/nul', 5, 'Line contains NUL byte.')
+
+
+def CheckForNewlineAtEOF(filename, lines, error):
+  """Logs an error if there is no newline char at the end of the file.
+
+  Args:
+    filename: The name of the current file.
+    lines: An array of strings, each representing a line of the file.
+    error: The function to call with any errors found.
+  """
+
+  # The array lines() was created by adding two newlines to the
+  # original file (go figure), then splitting on \n.
+  # To verify that the file ends in \n, we just have to make sure the
+  # last-but-two element of lines() exists and is empty.
+  if len(lines) < 3 or lines[-2]:
+    error(filename, len(lines) - 2, 'whitespace/ending_newline', 5,
+          'Could not find a newline character at the end of the file.')
+
+
+def CheckForMultilineCommentsAndStrings(filename, clean_lines, linenum, error):
+  """Logs an error if we see /* ... */ or "..." that extend past one line.
+
+  /* ... */ comments are legit inside macros, for one line.
+  Otherwise, we prefer // comments, so it's ok to warn about the
+  other.  Likewise, it's ok for strings to extend across multiple
+  lines, as long as a line continuation character (backslash)
+  terminates each line. Although not currently prohibited by the C++
+  style guide, it's ugly and unnecessary. We don't do well with either
+  in this lint program, so we warn about both.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Remove all \\ (escaped backslashes) from the line. They are OK, and the
+  # second (escaped) slash may trigger later \" detection erroneously.
+  line = line.replace('\\\\', '')
+
+  if line.count('/*') > line.count('*/'):
+    error(filename, linenum, 'readability/multiline_comment', 5,
+          'Complex multi-line /*...*/-style comment found. '
+          'Lint may give bogus warnings.  '
+          'Consider replacing these with //-style comments, '
+          'with #if 0...#endif, '
+          'or with more clearly structured multi-line comments.')
+
+  if (line.count('"') - line.count('\\"')) % 2:
+    error(filename, linenum, 'readability/multiline_string', 5,
+          'Multi-line string ("...") found.  This lint script doesn\'t '
+          'do well with such strings, and may give bogus warnings.  '
+          'Use C++11 raw strings or concatenation instead.')
+
+
+# (non-threadsafe name, thread-safe alternative, validation pattern)
+#
+# The validation pattern is used to eliminate false positives such as:
+#  _rand();               // false positive due to substring match.
+#  ->rand();              // some member function rand().
+#  ACMRandom rand(seed);  // some variable named rand.
+#  ISAACRandom rand();    // another variable named rand.
+#
+# Basically we require the return value of these functions to be used
+# in some expression context on the same line by matching on some
+# operator before the function name.  This eliminates constructors and
+# member function calls.
+_UNSAFE_FUNC_PREFIX = r'(?:[-+*/=%^&|(<]\s*|>\s+)'
+_THREADING_LIST = (
+    ('asctime(', 'asctime_r(', _UNSAFE_FUNC_PREFIX + r'asctime\([^)]+\)'),
+    ('ctime(', 'ctime_r(', _UNSAFE_FUNC_PREFIX + r'ctime\([^)]+\)'),
+    ('getgrgid(', 'getgrgid_r(', _UNSAFE_FUNC_PREFIX + r'getgrgid\([^)]+\)'),
+    ('getgrnam(', 'getgrnam_r(', _UNSAFE_FUNC_PREFIX + r'getgrnam\([^)]+\)'),
+    ('getlogin(', 'getlogin_r(', _UNSAFE_FUNC_PREFIX + r'getlogin\(\)'),
+    ('getpwnam(', 'getpwnam_r(', _UNSAFE_FUNC_PREFIX + r'getpwnam\([^)]+\)'),
+    ('getpwuid(', 'getpwuid_r(', _UNSAFE_FUNC_PREFIX + r'getpwuid\([^)]+\)'),
+    ('gmtime(', 'gmtime_r(', _UNSAFE_FUNC_PREFIX + r'gmtime\([^)]+\)'),
+    ('localtime(', 'localtime_r(', _UNSAFE_FUNC_PREFIX + r'localtime\([^)]+\)'),
+    ('rand(', 'rand_r(', _UNSAFE_FUNC_PREFIX + r'rand\(\)'),
+    ('strtok(', 'strtok_r(',
+     _UNSAFE_FUNC_PREFIX + r'strtok\([^)]+\)'),
+    ('ttyname(', 'ttyname_r(', _UNSAFE_FUNC_PREFIX + r'ttyname\([^)]+\)'),
+    )
+
+
+def CheckPosixThreading(filename, clean_lines, linenum, error):
+  """Checks for calls to thread-unsafe functions.
+
+  Much code has been originally written without consideration of
+  multi-threading. Also, engineers are relying on their old experience;
+  they have learned posix before threading extensions were added. These
+  tests guide the engineers to use thread-safe functions (when using
+  posix directly).
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+  for single_thread_func, multithread_safe_func, pattern in _THREADING_LIST:
+    # Additional pattern matching check to confirm that this is the
+    # function we are looking for
+    if Search(pattern, line):
+      error(filename, linenum, 'runtime/threadsafe_fn', 2,
+            'Consider using ' + multithread_safe_func +
+            '...) instead of ' + single_thread_func +
+            '...) for improved thread safety.')
+
+
+def CheckVlogArguments(filename, clean_lines, linenum, error):
+  """Checks that VLOG() is only used for defining a logging level.
+
+  For example, VLOG(2) is correct. VLOG(INFO), VLOG(WARNING), VLOG(ERROR), and
+  VLOG(FATAL) are not.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+  if Search(r'\bVLOG\((INFO|ERROR|WARNING|DFATAL|FATAL)\)', line):
+    error(filename, linenum, 'runtime/vlog', 5,
+          'VLOG() should be used with numeric verbosity level.  '
+          'Use LOG() if you want symbolic severity levels.')
+
+# Matches invalid increment: *count++, which moves pointer instead of
+# incrementing a value.
+_RE_PATTERN_INVALID_INCREMENT = re.compile(
+    r'^\s*\*\w+(\+\+|--);')
+
+
+def CheckInvalidIncrement(filename, clean_lines, linenum, error):
+  """Checks for invalid increment *count++.
+
+  For example following function:
+  void increment_counter(int* count) {
+    *count++;
+  }
+  is invalid, because it effectively does count++, moving pointer, and should
+  be replaced with ++*count, (*count)++ or *count += 1.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+  if _RE_PATTERN_INVALID_INCREMENT.match(line):
+    error(filename, linenum, 'runtime/invalid_increment', 5,
+          'Changing pointer instead of value (or unused value of operator*).')
+
+
+def IsMacroDefinition(clean_lines, linenum):
+  if Search(r'^#define', clean_lines[linenum]):
+    return True
+
+  if linenum > 0 and Search(r'\\$', clean_lines[linenum - 1]):
+    return True
+
+  return False
+
+
+def IsForwardClassDeclaration(clean_lines, linenum):
+  return Match(r'^\s*(\btemplate\b)*.*class\s+\w+;\s*$', clean_lines[linenum])
+
+
+class _BlockInfo(object):
+  """Stores information about a generic block of code."""
+
+  def __init__(self, seen_open_brace):
+    self.seen_open_brace = seen_open_brace
+    self.open_parentheses = 0
+    self.inline_asm = _NO_ASM
+    self.check_namespace_indentation = False
+
+  def CheckBegin(self, filename, clean_lines, linenum, error):
+    """Run checks that applies to text up to the opening brace.
+
+    This is mostly for checking the text after the class identifier
+    and the "{", usually where the base class is specified.  For other
+    blocks, there isn't much to check, so we always pass.
+
+    Args:
+      filename: The name of the current file.
+      clean_lines: A CleansedLines instance containing the file.
+      linenum: The number of the line to check.
+      error: The function to call with any errors found.
+    """
+    pass
+
+  def CheckEnd(self, filename, clean_lines, linenum, error):
+    """Run checks that applies to text after the closing brace.
+
+    This is mostly used for checking end of namespace comments.
+
+    Args:
+      filename: The name of the current file.
+      clean_lines: A CleansedLines instance containing the file.
+      linenum: The number of the line to check.
+      error: The function to call with any errors found.
+    """
+    pass
+
+  def IsBlockInfo(self):
+    """Returns true if this block is a _BlockInfo.
+
+    This is convenient for verifying that an object is an instance of
+    a _BlockInfo, but not an instance of any of the derived classes.
+
+    Returns:
+      True for this class, False for derived classes.
+    """
+    return self.__class__ == _BlockInfo
+
+
+class _ExternCInfo(_BlockInfo):
+  """Stores information about an 'extern "C"' block."""
+
+  def __init__(self):
+    _BlockInfo.__init__(self, True)
+
+
+class _ClassInfo(_BlockInfo):
+  """Stores information about a class."""
+
+  def __init__(self, name, class_or_struct, clean_lines, linenum):
+    _BlockInfo.__init__(self, False)
+    self.name = name
+    self.starting_linenum = linenum
+    self.is_derived = False
+    self.check_namespace_indentation = True
+    if class_or_struct == 'struct':
+      self.access = 'public'
+      self.is_struct = True
+    else:
+      self.access = 'private'
+      self.is_struct = False
+
+    # Remember initial indentation level for this class.  Using raw_lines here
+    # instead of elided to account for leading comments.
+    self.class_indent = GetIndentLevel(clean_lines.raw_lines[linenum])
+
+    # Try to find the end of the class.  This will be confused by things like:
+    #   class A {
+    #   } *x = { ...
+    #
+    # But it's still good enough for CheckSectionSpacing.
+    self.last_line = 0
+    depth = 0
+    for i in range(linenum, clean_lines.NumLines()):
+      line = clean_lines.elided[i]
+      depth += line.count('{') - line.count('}')
+      if not depth:
+        self.last_line = i
+        break
+
+  def CheckBegin(self, filename, clean_lines, linenum, error):
+    # Look for a bare ':'
+    if Search('(^|[^:]):($|[^:])', clean_lines.elided[linenum]):
+      self.is_derived = True
+
+  def CheckEnd(self, filename, clean_lines, linenum, error):
+    # If there is a DISALLOW macro, it should appear near the end of
+    # the class.
+    seen_last_thing_in_class = False
+    for i in xrange(linenum - 1, self.starting_linenum, -1):
+      match = Search(
+          r'\b(DISALLOW_COPY_AND_ASSIGN|DISALLOW_IMPLICIT_CONSTRUCTORS)\(' +
+          self.name + r'\)',
+          clean_lines.elided[i])
+      if match:
+        if seen_last_thing_in_class:
+          error(filename, i, 'readability/constructors', 3,
+                match.group(1) + ' should be the last thing in the class')
+        break
+
+      if not Match(r'^\s*$', clean_lines.elided[i]):
+        seen_last_thing_in_class = True
+
+    # Check that closing brace is aligned with beginning of the class.
+    # Only do this if the closing brace is indented by only whitespaces.
+    # This means we will not check single-line class definitions.
+    indent = Match(r'^( *)\}', clean_lines.elided[linenum])
+    if indent and len(indent.group(1)) != self.class_indent:
+      if self.is_struct:
+        parent = 'struct ' + self.name
+      else:
+        parent = 'class ' + self.name
+      error(filename, linenum, 'whitespace/indent', 3,
+            'Closing brace should be aligned with beginning of %s' % parent)
+
+
+class _NamespaceInfo(_BlockInfo):
+  """Stores information about a namespace."""
+
+  def __init__(self, name, linenum):
+    _BlockInfo.__init__(self, False)
+    self.name = name or ''
+    self.starting_linenum = linenum
+    self.check_namespace_indentation = True
+
+  def CheckEnd(self, filename, clean_lines, linenum, error):
+    """Check end of namespace comments."""
+    line = clean_lines.raw_lines[linenum]
+
+    # Check how many lines is enclosed in this namespace.  Don't issue
+    # warning for missing namespace comments if there aren't enough
+    # lines.  However, do apply checks if there is already an end of
+    # namespace comment and it's incorrect.
+    #
+    # TODO(unknown): We always want to check end of namespace comments
+    # if a namespace is large, but sometimes we also want to apply the
+    # check if a short namespace contained nontrivial things (something
+    # other than forward declarations).  There is currently no logic on
+    # deciding what these nontrivial things are, so this check is
+    # triggered by namespace size only, which works most of the time.
+    if (linenum - self.starting_linenum < 10
+        and not Match(r'};*\s*(//|/\*).*\bnamespace\b', line)):
+      return
+
+    # Look for matching comment at end of namespace.
+    #
+    # Note that we accept C style "/* */" comments for terminating
+    # namespaces, so that code that terminate namespaces inside
+    # preprocessor macros can be cpplint clean.
+    #
+    # We also accept stuff like "// end of namespace <name>." with the
+    # period at the end.
+    #
+    # Besides these, we don't accept anything else, otherwise we might
+    # get false negatives when existing comment is a substring of the
+    # expected namespace.
+    if self.name:
+      # Named namespace
+      if not Match((r'};*\s*(//|/\*).*\bnamespace\s+' + re.escape(self.name) +
+                    r'[\*/\.\\\s]*$'),
+                   line):
+        error(filename, linenum, 'readability/namespace', 5,
+              'Namespace should be terminated with "// namespace %s"' %
+              self.name)
+    else:
+      # Anonymous namespace
+      if not Match(r'};*\s*(//|/\*).*\bnamespace[\*/\.\\\s]*$', line):
+        # If "// namespace anonymous" or "// anonymous namespace (more text)",
+        # mention "// anonymous namespace" as an acceptable form
+        if Match(r'}.*\b(namespace anonymous|anonymous namespace)\b', line):
+          error(filename, linenum, 'readability/namespace', 5,
+                'Anonymous namespace should be terminated with "// namespace"'
+                ' or "// anonymous namespace"')
+        else:
+          error(filename, linenum, 'readability/namespace', 5,
+                'Anonymous namespace should be terminated with "// namespace"')
+
+
+class _PreprocessorInfo(object):
+  """Stores checkpoints of nesting stacks when #if/#else is seen."""
+
+  def __init__(self, stack_before_if):
+    # The entire nesting stack before #if
+    self.stack_before_if = stack_before_if
+
+    # The entire nesting stack up to #else
+    self.stack_before_else = []
+
+    # Whether we have already seen #else or #elif
+    self.seen_else = False
+
+
+class NestingState(object):
+  """Holds states related to parsing braces."""
+
+  def __init__(self):
+    # Stack for tracking all braces.  An object is pushed whenever we
+    # see a "{", and popped when we see a "}".  Only 3 types of
+    # objects are possible:
+    # - _ClassInfo: a class or struct.
+    # - _NamespaceInfo: a namespace.
+    # - _BlockInfo: some other type of block.
+    self.stack = []
+
+    # Top of the previous stack before each Update().
+    #
+    # Because the nesting_stack is updated at the end of each line, we
+    # had to do some convoluted checks to find out what is the current
+    # scope at the beginning of the line.  This check is simplified by
+    # saving the previous top of nesting stack.
+    #
+    # We could save the full stack, but we only need the top.  Copying
+    # the full nesting stack would slow down cpplint by ~10%.
+    self.previous_stack_top = []
+
+    # Stack of _PreprocessorInfo objects.
+    self.pp_stack = []
+
+  def SeenOpenBrace(self):
+    """Check if we have seen the opening brace for the innermost block.
+
+    Returns:
+      True if we have seen the opening brace, False if the innermost
+      block is still expecting an opening brace.
+    """
+    return (not self.stack) or self.stack[-1].seen_open_brace
+
+  def InNamespaceBody(self):
+    """Check if we are currently one level inside a namespace body.
+
+    Returns:
+      True if top of the stack is a namespace block, False otherwise.
+    """
+    return self.stack and isinstance(self.stack[-1], _NamespaceInfo)
+
+  def InExternC(self):
+    """Check if we are currently one level inside an 'extern "C"' block.
+
+    Returns:
+      True if top of the stack is an extern block, False otherwise.
+    """
+    return self.stack and isinstance(self.stack[-1], _ExternCInfo)
+
+  def InClassDeclaration(self):
+    """Check if we are currently one level inside a class or struct declaration.
+
+    Returns:
+      True if top of the stack is a class/struct, False otherwise.
+    """
+    return self.stack and isinstance(self.stack[-1], _ClassInfo)
+
+  def InAsmBlock(self):
+    """Check if we are currently one level inside an inline ASM block.
+
+    Returns:
+      True if the top of the stack is a block containing inline ASM.
+    """
+    return self.stack and self.stack[-1].inline_asm != _NO_ASM
+
+  def InTemplateArgumentList(self, clean_lines, linenum, pos):
+    """Check if current position is inside template argument list.
+
+    Args:
+      clean_lines: A CleansedLines instance containing the file.
+      linenum: The number of the line to check.
+      pos: position just after the suspected template argument.
+    Returns:
+      True if (linenum, pos) is inside template arguments.
+    """
+    while linenum < clean_lines.NumLines():
+      # Find the earliest character that might indicate a template argument
+      line = clean_lines.elided[linenum]
+      match = Match(r'^[^{};=\[\]\.<>]*(.)', line[pos:])
+      if not match:
+        linenum += 1
+        pos = 0
+        continue
+      token = match.group(1)
+      pos += len(match.group(0))
+
+      # These things do not look like template argument list:
+      #   class Suspect {
+      #   class Suspect x; }
+      if token in ('{', '}', ';'): return False
+
+      # These things look like template argument list:
+      #   template <class Suspect>
+      #   template <class Suspect = default_value>
+      #   template <class Suspect[]>
+      #   template <class Suspect...>
+      if token in ('>', '=', '[', ']', '.'): return True
+
+      # Check if token is an unmatched '<'.
+      # If not, move on to the next character.
+      if token != '<':
+        pos += 1
+        if pos >= len(line):
+          linenum += 1
+          pos = 0
+        continue
+
+      # We can't be sure if we just find a single '<', and need to
+      # find the matching '>'.
+      (_, end_line, end_pos) = CloseExpression(clean_lines, linenum, pos - 1)
+      if end_pos < 0:
+        # Not sure if template argument list or syntax error in file
+        return False
+      linenum = end_line
+      pos = end_pos
+    return False
+
+  def UpdatePreprocessor(self, line):
+    """Update preprocessor stack.
+
+    We need to handle preprocessors due to classes like this:
+      #ifdef SWIG
+      struct ResultDetailsPageElementExtensionPoint {
+      #else
+      struct ResultDetailsPageElementExtensionPoint : public Extension {
+      #endif
+
+    We make the following assumptions (good enough for most files):
+    - Preprocessor condition evaluates to true from #if up to first
+      #else/#elif/#endif.
+
+    - Preprocessor condition evaluates to false from #else/#elif up
+      to #endif.  We still perform lint checks on these lines, but
+      these do not affect nesting stack.
+
+    Args:
+      line: current line to check.
+    """
+    if Match(r'^\s*#\s*(if|ifdef|ifndef)\b', line):
+      # Beginning of #if block, save the nesting stack here.  The saved
+      # stack will allow us to restore the parsing state in the #else case.
+      self.pp_stack.append(_PreprocessorInfo(copy.deepcopy(self.stack)))
+    elif Match(r'^\s*#\s*(else|elif)\b', line):
+      # Beginning of #else block
+      if self.pp_stack:
+        if not self.pp_stack[-1].seen_else:
+          # This is the first #else or #elif block.  Remember the
+          # whole nesting stack up to this point.  This is what we
+          # keep after the #endif.
+          self.pp_stack[-1].seen_else = True
+          self.pp_stack[-1].stack_before_else = copy.deepcopy(self.stack)
+
+        # Restore the stack to how it was before the #if
+        self.stack = copy.deepcopy(self.pp_stack[-1].stack_before_if)
+      else:
+        # TODO(unknown): unexpected #else, issue warning?
+        pass
+    elif Match(r'^\s*#\s*endif\b', line):
+      # End of #if or #else blocks.
+      if self.pp_stack:
+        # If we saw an #else, we will need to restore the nesting
+        # stack to its former state before the #else, otherwise we
+        # will just continue from where we left off.
+        if self.pp_stack[-1].seen_else:
+          # Here we can just use a shallow copy since we are the last
+          # reference to it.
+          self.stack = self.pp_stack[-1].stack_before_else
+        # Drop the corresponding #if
+        self.pp_stack.pop()
+      else:
+        # TODO(unknown): unexpected #endif, issue warning?
+        pass
+
+  # TODO(unknown): Update() is too long, but we will refactor later.
+  def Update(self, filename, clean_lines, linenum, error):
+    """Update nesting state with current line.
+
+    Args:
+      filename: The name of the current file.
+      clean_lines: A CleansedLines instance containing the file.
+      linenum: The number of the line to check.
+      error: The function to call with any errors found.
+    """
+    line = clean_lines.elided[linenum]
+
+    # Remember top of the previous nesting stack.
+    #
+    # The stack is always pushed/popped and not modified in place, so
+    # we can just do a shallow copy instead of copy.deepcopy.  Using
+    # deepcopy would slow down cpplint by ~28%.
+    if self.stack:
+      self.previous_stack_top = self.stack[-1]
+    else:
+      self.previous_stack_top = None
+
+    # Update pp_stack
+    self.UpdatePreprocessor(line)
+
+    # Count parentheses.  This is to avoid adding struct arguments to
+    # the nesting stack.
+    if self.stack:
+      inner_block = self.stack[-1]
+      depth_change = line.count('(') - line.count(')')
+      inner_block.open_parentheses += depth_change
+
+      # Also check if we are starting or ending an inline assembly block.
+      if inner_block.inline_asm in (_NO_ASM, _END_ASM):
+        if (depth_change != 0 and
+            inner_block.open_parentheses == 1 and
+            _MATCH_ASM.match(line)):
+          # Enter assembly block
+          inner_block.inline_asm = _INSIDE_ASM
+        else:
+          # Not entering assembly block.  If previous line was _END_ASM,
+          # we will now shift to _NO_ASM state.
+          inner_block.inline_asm = _NO_ASM
+      elif (inner_block.inline_asm == _INSIDE_ASM and
+            inner_block.open_parentheses == 0):
+        # Exit assembly block
+        inner_block.inline_asm = _END_ASM
+
+    # Consume namespace declaration at the beginning of the line.  Do
+    # this in a loop so that we catch same line declarations like this:
+    #   namespace proto2 { namespace bridge { class MessageSet; } }
+    while True:
+      # Match start of namespace.  The "\b\s*" below catches namespace
+      # declarations even if it weren't followed by a whitespace, this
+      # is so that we don't confuse our namespace checker.  The
+      # missing spaces will be flagged by CheckSpacing.
+      namespace_decl_match = Match(r'^\s*namespace\b\s*([:\w]+)?(.*)$', line)
+      if not namespace_decl_match:
+        break
+
+      new_namespace = _NamespaceInfo(namespace_decl_match.group(1), linenum)
+      self.stack.append(new_namespace)
+
+      line = namespace_decl_match.group(2)
+      if line.find('{') != -1:
+        new_namespace.seen_open_brace = True
+        line = line[line.find('{') + 1:]
+
+    # Look for a class declaration in whatever is left of the line
+    # after parsing namespaces.  The regexp accounts for decorated classes
+    # such as in:
+    #   class LOCKABLE API Object {
+    #   };
+    class_decl_match = Match(
+        r'^(\s*(?:template\s*<[\w\s<>,:]*>\s*)?'
+        r'(class|struct)\s+(?:[A-Z_]+\s+)*(\w+(?:::\w+)*))'
+        r'(.*)$', line)
+    if (class_decl_match and
+        (not self.stack or self.stack[-1].open_parentheses == 0)):
+      # We do not want to accept classes that are actually template arguments:
+      #   template <class Ignore1,
+      #             class Ignore2 = Default<Args>,
+      #             template <Args> class Ignore3>
+      #   void Function() {};
+      #
+      # To avoid template argument cases, we scan forward and look for
+      # an unmatched '>'.  If we see one, assume we are inside a
+      # template argument list.
+      end_declaration = len(class_decl_match.group(1))
+      if not self.InTemplateArgumentList(clean_lines, linenum, end_declaration):
+        self.stack.append(_ClassInfo(
+            class_decl_match.group(3), class_decl_match.group(2),
+            clean_lines, linenum))
+        line = class_decl_match.group(4)
+
+    # If we have not yet seen the opening brace for the innermost block,
+    # run checks here.
+    if not self.SeenOpenBrace():
+      self.stack[-1].CheckBegin(filename, clean_lines, linenum, error)
+
+    # Update access control if we are inside a class/struct
+    if self.stack and isinstance(self.stack[-1], _ClassInfo):
+      classinfo = self.stack[-1]
+      access_match = Match(
+          r'^(.*)\b(public|private|protected|signals)(\s+(?:slots\s*)?)?'
+          r':(?:[^:]|$)',
+          line)
+      if access_match:
+        classinfo.access = access_match.group(2)
+
+        # Check that access keywords are indented +1 space.  Skip this
+        # check if the keywords are not preceded by whitespaces.
+        indent = access_match.group(1)
+        if (len(indent) != classinfo.class_indent + 1 and
+            Match(r'^\s*$', indent)):
+          if classinfo.is_struct:
+            parent = 'struct ' + classinfo.name
+          else:
+            parent = 'class ' + classinfo.name
+          slots = ''
+          if access_match.group(3):
+            slots = access_match.group(3)
+          error(filename, linenum, 'whitespace/indent', 3,
+                '%s%s: should be indented +1 space inside %s' % (
+                    access_match.group(2), slots, parent))
+
+    # Consume braces or semicolons from what's left of the line
+    while True:
+      # Match first brace, semicolon, or closed parenthesis.
+      matched = Match(r'^[^{;)}]*([{;)}])(.*)$', line)
+      if not matched:
+        break
+
+      token = matched.group(1)
+      if token == '{':
+        # If namespace or class hasn't seen a opening brace yet, mark
+        # namespace/class head as complete.  Push a new block onto the
+        # stack otherwise.
+        if not self.SeenOpenBrace():
+          self.stack[-1].seen_open_brace = True
+        elif Match(r'^extern\s*"[^"]*"\s*\{', line):
+          self.stack.append(_ExternCInfo())
+        else:
+          self.stack.append(_BlockInfo(True))
+          if _MATCH_ASM.match(line):
+            self.stack[-1].inline_asm = _BLOCK_ASM
+
+      elif token == ';' or token == ')':
+        # If we haven't seen an opening brace yet, but we already saw
+        # a semicolon, this is probably a forward declaration.  Pop
+        # the stack for these.
+        #
+        # Similarly, if we haven't seen an opening brace yet, but we
+        # already saw a closing parenthesis, then these are probably
+        # function arguments with extra "class" or "struct" keywords.
+        # Also pop these stack for these.
+        if not self.SeenOpenBrace():
+          self.stack.pop()
+      else:  # token == '}'
+        # Perform end of block checks and pop the stack.
+        if self.stack:
+          self.stack[-1].CheckEnd(filename, clean_lines, linenum, error)
+          self.stack.pop()
+      line = matched.group(2)
+
+  def InnermostClass(self):
+    """Get class info on the top of the stack.
+
+    Returns:
+      A _ClassInfo object if we are inside a class, or None otherwise.
+    """
+    for i in range(len(self.stack), 0, -1):
+      classinfo = self.stack[i - 1]
+      if isinstance(classinfo, _ClassInfo):
+        return classinfo
+    return None
+
+  def CheckCompletedBlocks(self, filename, error):
+    """Checks that all classes and namespaces have been completely parsed.
+
+    Call this when all lines in a file have been processed.
+    Args:
+      filename: The name of the current file.
+      error: The function to call with any errors found.
+    """
+    # Note: This test can result in false positives if #ifdef constructs
+    # get in the way of brace matching. See the testBuildClass test in
+    # cpplint_unittest.py for an example of this.
+    for obj in self.stack:
+      if isinstance(obj, _ClassInfo):
+        error(filename, obj.starting_linenum, 'build/class', 5,
+              'Failed to find complete declaration of class %s' %
+              obj.name)
+      elif isinstance(obj, _NamespaceInfo):
+        error(filename, obj.starting_linenum, 'build/namespaces', 5,
+              'Failed to find complete declaration of namespace %s' %
+              obj.name)
+
+
+def CheckForNonStandardConstructs(filename, clean_lines, linenum,
+                                  nesting_state, error):
+  r"""Logs an error if we see certain non-ANSI constructs ignored by gcc-2.
+
+  Complain about several constructs which gcc-2 accepts, but which are
+  not standard C++.  Warning about these in lint is one way to ease the
+  transition to new compilers.
+  - put storage class first (e.g. "static const" instead of "const static").
+  - "%lld" instead of %qd" in printf-type functions.
+  - "%1$d" is non-standard in printf-type functions.
+  - "\%" is an undefined character escape sequence.
+  - text after #endif is not allowed.
+  - invalid inner-style forward declaration.
+  - >? and <? operators, and their >?= and <?= cousins.
+
+  Additionally, check for constructor/destructor style violations and reference
+  members, as it is very convenient to do so while checking for
+  gcc-2 compliance.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: A callable to which errors are reported, which takes 4 arguments:
+           filename, line number, error level, and message
+  """
+
+  # Remove comments from the line, but leave in strings for now.
+  line = clean_lines.lines[linenum]
+
+  if Search(r'printf\s*\(.*".*%[-+ ]?\d*q', line):
+    error(filename, linenum, 'runtime/printf_format', 3,
+          '%q in format strings is deprecated.  Use %ll instead.')
+
+  if Search(r'printf\s*\(.*".*%\d+\$', line):
+    error(filename, linenum, 'runtime/printf_format', 2,
+          '%N$ formats are unconventional.  Try rewriting to avoid them.')
+
+  # Remove escaped backslashes before looking for undefined escapes.
+  line = line.replace('\\\\', '')
+
+  if Search(r'("|\').*\\(%|\[|\(|{)', line):
+    error(filename, linenum, 'build/printf_format', 3,
+          '%, [, (, and { are undefined character escapes.  Unescape them.')
+
+  # For the rest, work with both comments and strings removed.
+  line = clean_lines.elided[linenum]
+
+  if Search(r'\b(const|volatile|void|char|short|int|long'
+            r'|float|double|signed|unsigned'
+            r'|schar|u?int8|u?int16|u?int32|u?int64)'
+            r'\s+(register|static|extern|typedef)\b',
+            line):
+    error(filename, linenum, 'build/storage_class', 5,
+          'Storage class (static, extern, typedef, etc) should be first.')
+
+  if Match(r'\s*#\s*endif\s*[^/\s]+', line):
+    error(filename, linenum, 'build/endif_comment', 5,
+          'Uncommented text after #endif is non-standard.  Use a comment.')
+
+  if Match(r'\s*class\s+(\w+\s*::\s*)+\w+\s*;', line):
+    error(filename, linenum, 'build/forward_decl', 5,
+          'Inner-style forward declarations are invalid.  Remove this line.')
+
+  if Search(r'(\w+|[+-]?\d+(\.\d*)?)\s*(<|>)\?=?\s*(\w+|[+-]?\d+)(\.\d*)?',
+            line):
+    error(filename, linenum, 'build/deprecated', 3,
+          '>? and <? (max and min) operators are non-standard and deprecated.')
+
+  if Search(r'^\s*const\s*string\s*&\s*\w+\s*;', line):
+    # TODO(unknown): Could it be expanded safely to arbitrary references,
+    # without triggering too many false positives? The first
+    # attempt triggered 5 warnings for mostly benign code in the regtest, hence
+    # the restriction.
+    # Here's the original regexp, for the reference:
+    # type_name = r'\w+((\s*::\s*\w+)|(\s*<\s*\w+?\s*>))?'
+    # r'\s*const\s*' + type_name + '\s*&\s*\w+\s*;'
+    error(filename, linenum, 'runtime/member_string_references', 2,
+          'const string& members are dangerous. It is much better to use '
+          'alternatives, such as pointers or simple constants.')
+
+  # Everything else in this function operates on class declarations.
+  # Return early if the top of the nesting stack is not a class, or if
+  # the class head is not completed yet.
+  classinfo = nesting_state.InnermostClass()
+  if not classinfo or not classinfo.seen_open_brace:
+    return
+
+  # The class may have been declared with namespace or classname qualifiers.
+  # The constructor and destructor will not have those qualifiers.
+  base_classname = classinfo.name.split('::')[-1]
+
+  # Look for single-argument constructors that aren't marked explicit.
+  # Technically a valid construct, but against style. Also look for
+  # non-single-argument constructors which are also technically valid, but
+  # strongly suggest something is wrong.
+  explicit_constructor_match = Match(
+      r'\s+(?:inline\s+)?(explicit\s+)?(?:inline\s+)?%s\s*'
+      r'\(((?:[^()]|\([^()]*\))*)\)'
+      % re.escape(base_classname),
+      line)
+
+  if explicit_constructor_match:
+    is_marked_explicit = explicit_constructor_match.group(1)
+
+    if not explicit_constructor_match.group(2):
+      constructor_args = []
+    else:
+      constructor_args = explicit_constructor_match.group(2).split(',')
+
+    # collapse arguments so that commas in template parameter lists and function
+    # argument parameter lists don't split arguments in two
+    i = 0
+    while i < len(constructor_args):
+      constructor_arg = constructor_args[i]
+      while (constructor_arg.count('<') > constructor_arg.count('>') or
+             constructor_arg.count('(') > constructor_arg.count(')')):
+        constructor_arg += ',' + constructor_args[i + 1]
+        del constructor_args[i + 1]
+      constructor_args[i] = constructor_arg
+      i += 1
+
+    defaulted_args = [arg for arg in constructor_args if '=' in arg]
+    noarg_constructor = (not constructor_args or  # empty arg list
+                         # 'void' arg specifier
+                         (len(constructor_args) == 1 and
+                          constructor_args[0].strip() == 'void'))
+    onearg_constructor = ((len(constructor_args) == 1 and  # exactly one arg
+                           not noarg_constructor) or
+                          # all but at most one arg defaulted
+                          (len(constructor_args) >= 1 and
+                           not noarg_constructor and
+                           len(defaulted_args) >= len(constructor_args) - 1))
+    initializer_list_constructor = bool(
+        onearg_constructor and
+        Search(r'\bstd\s*::\s*initializer_list\b', constructor_args[0]))
+    copy_constructor = bool(
+        onearg_constructor and
+        Match(r'(const\s+)?%s(\s*<[^>]*>)?(\s+const)?\s*(?:<\w+>\s*)?&'
+              % re.escape(base_classname), constructor_args[0].strip()))
+
+    if (not is_marked_explicit and
+        onearg_constructor and
+        not initializer_list_constructor and
+        not copy_constructor):
+      if defaulted_args:
+        error(filename, linenum, 'runtime/explicit', 5,
+              'Constructors callable with one argument '
+              'should be marked explicit.')
+      else:
+        error(filename, linenum, 'runtime/explicit', 5,
+              'Single-parameter constructors should be marked explicit.')
+    elif is_marked_explicit and not onearg_constructor:
+      if noarg_constructor:
+        error(filename, linenum, 'runtime/explicit', 5,
+              'Zero-parameter constructors should not be marked explicit.')
+      else:
+        error(filename, linenum, 'runtime/explicit', 0,
+              'Constructors that require multiple arguments '
+              'should not be marked explicit.')
+
+
+def CheckSpacingForFunctionCall(filename, clean_lines, linenum, error):
+  """Checks for the correctness of various spacing around function calls.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Since function calls often occur inside if/for/while/switch
+  # expressions - which have their own, more liberal conventions - we
+  # first see if we should be looking inside such an expression for a
+  # function call, to which we can apply more strict standards.
+  fncall = line    # if there's no control flow construct, look at whole line
+  for pattern in (r'\bif\s*\((.*)\)\s*{',
+                  r'\bfor\s*\((.*)\)\s*{',
+                  r'\bwhile\s*\((.*)\)\s*[{;]',
+                  r'\bswitch\s*\((.*)\)\s*{'):
+    match = Search(pattern, line)
+    if match:
+      fncall = match.group(1)    # look inside the parens for function calls
+      break
+
+  # Except in if/for/while/switch, there should never be space
+  # immediately inside parens (eg "f( 3, 4 )").  We make an exception
+  # for nested parens ( (a+b) + c ).  Likewise, there should never be
+  # a space before a ( when it's a function argument.  I assume it's a
+  # function argument when the char before the whitespace is legal in
+  # a function name (alnum + _) and we're not starting a macro. Also ignore
+  # pointers and references to arrays and functions coz they're too tricky:
+  # we use a very simple way to recognize these:
+  # " (something)(maybe-something)" or
+  # " (something)(maybe-something," or
+  # " (something)[something]"
+  # Note that we assume the contents of [] to be short enough that
+  # they'll never need to wrap.
+  if (  # Ignore control structures.
+      not Search(r'\b(if|for|while|switch|return|new|delete|catch|sizeof)\b',
+                 fncall) and
+      # Ignore pointers/references to functions.
+      not Search(r' \([^)]+\)\([^)]*(\)|,$)', fncall) and
+      # Ignore pointers/references to arrays.
+      not Search(r' \([^)]+\)\[[^\]]+\]', fncall)):
+    if Search(r'\w\s*\(\s(?!\s*\\$)', fncall):      # a ( used for a fn call
+      error(filename, linenum, 'whitespace/parens', 4,
+            'Extra space after ( in function call')
+    elif Search(r'\(\s+(?!(\s*\\)|\()', fncall):
+      error(filename, linenum, 'whitespace/parens', 2,
+            'Extra space after (')
+    if (Search(r'\w\s+\(', fncall) and
+        not Search(r'#\s*define|typedef|using\s+\w+\s*=', fncall) and
+        not Search(r'\w\s+\((\w+::)*\*\w+\)\(', fncall) and
+        not Search(r'\bcase\s+\(', fncall)):
+      # TODO(unknown): Space after an operator function seem to be a common
+      # error, silence those for now by restricting them to highest verbosity.
+      if Search(r'\boperator_*\b', line):
+        error(filename, linenum, 'whitespace/parens', 0,
+              'Extra space before ( in function call')
+      else:
+        error(filename, linenum, 'whitespace/parens', 4,
+              'Extra space before ( in function call')
+    # If the ) is followed only by a newline or a { + newline, assume it's
+    # part of a control statement (if/while/etc), and don't complain
+    if Search(r'[^)]\s+\)\s*[^{\s]', fncall):
+      # If the closing parenthesis is preceded by only whitespaces,
+      # try to give a more descriptive error message.
+      if Search(r'^\s+\)', fncall):
+        error(filename, linenum, 'whitespace/parens', 2,
+              'Closing ) should be moved to the previous line')
+      else:
+        error(filename, linenum, 'whitespace/parens', 2,
+              'Extra space before )')
+
+
+def IsBlankLine(line):
+  """Returns true if the given line is blank.
+
+  We consider a line to be blank if the line is empty or consists of
+  only white spaces.
+
+  Args:
+    line: A line of a string.
+
+  Returns:
+    True, if the given line is blank.
+  """
+  return not line or line.isspace()
+
+
+def CheckForNamespaceIndentation(filename, nesting_state, clean_lines, line,
+                                 error):
+  is_namespace_indent_item = (
+      len(nesting_state.stack) > 1 and
+      nesting_state.stack[-1].check_namespace_indentation and
+      isinstance(nesting_state.previous_stack_top, _NamespaceInfo) and
+      nesting_state.previous_stack_top == nesting_state.stack[-2])
+
+  if ShouldCheckNamespaceIndentation(nesting_state, is_namespace_indent_item,
+                                     clean_lines.elided, line):
+    CheckItemIndentationInNamespace(filename, clean_lines.elided,
+                                    line, error)
+
+
+def CheckForFunctionLengths(filename, clean_lines, linenum,
+                            function_state, error):
+  """Reports for long function bodies.
+
+  For an overview why this is done, see:
+  http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Write_Short_Functions
+
+  Uses a simplistic algorithm assuming other style guidelines
+  (especially spacing) are followed.
+  Only checks unindented functions, so class members are unchecked.
+  Trivial bodies are unchecked, so constructors with huge initializer lists
+  may be missed.
+  Blank/comment lines are not counted so as to avoid encouraging the removal
+  of vertical space and comments just to get through a lint check.
+  NOLINT *on the last line of a function* disables this check.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    function_state: Current function name and lines in body so far.
+    error: The function to call with any errors found.
+  """
+  lines = clean_lines.lines
+  line = lines[linenum]
+  joined_line = ''
+
+  starting_func = False
+  regexp = r'(\w(\w|::|\*|\&|\s)*)\('  # decls * & space::name( ...
+  match_result = Match(regexp, line)
+  if match_result:
+    # If the name is all caps and underscores, figure it's a macro and
+    # ignore it, unless it's TEST or TEST_F.
+    function_name = match_result.group(1).split()[-1]
+    if function_name == 'TEST' or function_name == 'TEST_F' or (
+        not Match(r'[A-Z_]+$', function_name)):
+      starting_func = True
+
+  if starting_func:
+    body_found = False
+    for start_linenum in xrange(linenum, clean_lines.NumLines()):
+      start_line = lines[start_linenum]
+      joined_line += ' ' + start_line.lstrip()
+      if Search(r'(;|})', start_line):  # Declarations and trivial functions
+        body_found = True
+        break                              # ... ignore
+      elif Search(r'{', start_line):
+        body_found = True
+        function = Search(r'((\w|:)*)\(', line).group(1)
+        if Match(r'TEST', function):    # Handle TEST... macros
+          parameter_regexp = Search(r'(\(.*\))', joined_line)
+          if parameter_regexp:             # Ignore bad syntax
+            function += parameter_regexp.group(1)
+        else:
+          function += '()'
+        function_state.Begin(function)
+        break
+    if not body_found:
+      # No body for the function (or evidence of a non-function) was found.
+      error(filename, linenum, 'readability/fn_size', 5,
+            'Lint failed to find start of function body.')
+  elif Match(r'^\}\s*$', line):  # function end
+    function_state.Check(error, filename, linenum)
+    function_state.End()
+  elif not Match(r'^\s*$', line):
+    function_state.Count()  # Count non-blank/non-comment lines.
+
+
+_RE_PATTERN_TODO = re.compile(r'^//(\s*)TODO(\(.+?\))?:?(\s|$)?')
+
+
+def CheckComment(line, filename, linenum, next_line_start, error):
+  """Checks for common mistakes in comments.
+
+  Args:
+    line: The line in question.
+    filename: The name of the current file.
+    linenum: The number of the line to check.
+    next_line_start: The first non-whitespace column of the next line.
+    error: The function to call with any errors found.
+  """
+  commentpos = line.find('//')
+  if commentpos != -1:
+    # Check if the // may be in quotes.  If so, ignore it
+    # Comparisons made explicit for clarity -- pylint: disable=g-explicit-bool-comparison
+    if (line.count('"', 0, commentpos) -
+        line.count('\\"', 0, commentpos)) % 2 == 0:   # not in quotes
+      # Allow one space for new scopes, two spaces otherwise:
+      if (not (Match(r'^.*{ *//', line) and next_line_start == commentpos) and
+          ((commentpos >= 1 and
+            line[commentpos-1] not in string.whitespace) or
+           (commentpos >= 2 and
+            line[commentpos-2] not in string.whitespace))):
+        error(filename, linenum, 'whitespace/comments', 2,
+              'At least two spaces is best between code and comments')
+
+      # Checks for common mistakes in TODO comments.
+      comment = line[commentpos:]
+      match = _RE_PATTERN_TODO.match(comment)
+      if match:
+        # One whitespace is correct; zero whitespace is handled elsewhere.
+        leading_whitespace = match.group(1)
+        if len(leading_whitespace) > 1:
+          error(filename, linenum, 'whitespace/todo', 2,
+                'Too many spaces before TODO')
+
+        username = match.group(2)
+        if not username:
+          error(filename, linenum, 'readability/todo', 2,
+                'Missing username in TODO; it should look like '
+                '"// TODO(my_username): Stuff."')
+
+        middle_whitespace = match.group(3)
+        # Comparisons made explicit for correctness -- pylint: disable=g-explicit-bool-comparison
+        if middle_whitespace != ' ' and middle_whitespace != '':
+          error(filename, linenum, 'whitespace/todo', 2,
+                'TODO(my_username) should be followed by a space')
+
+      # If the comment contains an alphanumeric character, there
+      # should be a space somewhere between it and the // unless
+      # it's a /// or //! Doxygen comment.
+      if (Match(r'//[^ ]*\w', comment) and
+          not Match(r'(///|//\!)(\s+|$)', comment)):
+        error(filename, linenum, 'whitespace/comments', 4,
+              'Should have a space between // and comment')
+
+
+def CheckAccess(filename, clean_lines, linenum, nesting_state, error):
+  """Checks for improper use of DISALLOW* macros.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]  # get rid of comments and strings
+
+  matched = Match((r'\s*(DISALLOW_COPY_AND_ASSIGN|'
+                   r'DISALLOW_IMPLICIT_CONSTRUCTORS)'), line)
+  if not matched:
+    return
+  if nesting_state.stack and isinstance(nesting_state.stack[-1], _ClassInfo):
+    if nesting_state.stack[-1].access != 'private':
+      error(filename, linenum, 'readability/constructors', 3,
+            '%s must be in the private: section' % matched.group(1))
+
+  else:
+    # Found DISALLOW* macro outside a class declaration, or perhaps it
+    # was used inside a function when it should have been part of the
+    # class declaration.  We could issue a warning here, but it
+    # probably resulted in a compiler error already.
+    pass
+
+
+def CheckSpacing(filename, clean_lines, linenum, nesting_state, error):
+  """Checks for the correctness of various spacing issues in the code.
+
+  Things we check for: spaces around operators, spaces after
+  if/for/while/switch, no spaces around parens in function calls, two
+  spaces between code and comment, don't start a block with a blank
+  line, don't end a function with a blank line, don't add a blank line
+  after public/protected/private, don't have too many blank lines in a row.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: The function to call with any errors found.
+  """
+
+  # Don't use "elided" lines here, otherwise we can't check commented lines.
+  # Don't want to use "raw" either, because we don't want to check inside C++11
+  # raw strings,
+  raw = clean_lines.lines_without_raw_strings
+  line = raw[linenum]
+
+  # Before nixing comments, check if the line is blank for no good
+  # reason.  This includes the first line after a block is opened, and
+  # blank lines at the end of a function (ie, right before a line like '}'
+  #
+  # Skip all the blank line checks if we are immediately inside a
+  # namespace body.  In other words, don't issue blank line warnings
+  # for this block:
+  #   namespace {
+  #
+  #   }
+  #
+  # A warning about missing end of namespace comments will be issued instead.
+  #
+  # Also skip blank line checks for 'extern "C"' blocks, which are formatted
+  # like namespaces.
+  if (IsBlankLine(line) and
+      not nesting_state.InNamespaceBody() and
+      not nesting_state.InExternC()):
+    elided = clean_lines.elided
+    prev_line = elided[linenum - 1]
+    prevbrace = prev_line.rfind('{')
+    # TODO(unknown): Don't complain if line before blank line, and line after,
+    #                both start with alnums and are indented the same amount.
+    #                This ignores whitespace at the start of a namespace block
+    #                because those are not usually indented.
+    if prevbrace != -1 and prev_line[prevbrace:].find('}') == -1:
+      # OK, we have a blank line at the start of a code block.  Before we
+      # complain, we check if it is an exception to the rule: The previous
+      # non-empty line has the parameters of a function header that are indented
+      # 4 spaces (because they did not fit in a 80 column line when placed on
+      # the same line as the function name).  We also check for the case where
+      # the previous line is indented 6 spaces, which may happen when the
+      # initializers of a constructor do not fit into a 80 column line.
+      exception = False
+      if Match(r' {6}\w', prev_line):  # Initializer list?
+        # We are looking for the opening column of initializer list, which
+        # should be indented 4 spaces to cause 6 space indentation afterwards.
+        search_position = linenum-2
+        while (search_position >= 0
+               and Match(r' {6}\w', elided[search_position])):
+          search_position -= 1
+        exception = (search_position >= 0
+                     and elided[search_position][:5] == '    :')
+      else:
+        # Search for the function arguments or an initializer list.  We use a
+        # simple heuristic here: If the line is indented 4 spaces; and we have a
+        # closing paren, without the opening paren, followed by an opening brace
+        # or colon (for initializer lists) we assume that it is the last line of
+        # a function header.  If we have a colon indented 4 spaces, it is an
+        # initializer list.
+        exception = (Match(r' {4}\w[^\(]*\)\s*(const\s*)?(\{\s*$|:)',
+                           prev_line)
+                     or Match(r' {4}:', prev_line))
+
+      if not exception:
+        error(filename, linenum, 'whitespace/blank_line', 2,
+              'Redundant blank line at the start of a code block '
+              'should be deleted.')
+    # Ignore blank lines at the end of a block in a long if-else
+    # chain, like this:
+    #   if (condition1) {
+    #     // Something followed by a blank line
+    #
+    #   } else if (condition2) {
+    #     // Something else
+    #   }
+    if linenum + 1 < clean_lines.NumLines():
+      next_line = raw[linenum + 1]
+      if (next_line
+          and Match(r'\s*}', next_line)
+          and next_line.find('} else ') == -1):
+        error(filename, linenum, 'whitespace/blank_line', 3,
+              'Redundant blank line at the end of a code block '
+              'should be deleted.')
+
+    matched = Match(r'\s*(public|protected|private):', prev_line)
+    if matched:
+      error(filename, linenum, 'whitespace/blank_line', 3,
+            'Do not leave a blank line after "%s:"' % matched.group(1))
+
+  # Next, check comments
+  next_line_start = 0
+  if linenum + 1 < clean_lines.NumLines():
+    next_line = raw[linenum + 1]
+    next_line_start = len(next_line) - len(next_line.lstrip())
+  CheckComment(line, filename, linenum, next_line_start, error)
+
+  # get rid of comments and strings
+  line = clean_lines.elided[linenum]
+
+  # You shouldn't have spaces before your brackets, except maybe after
+  # 'delete []' or 'return []() {};'
+  if Search(r'\w\s+\[', line) and not Search(r'(?:delete|return)\s+\[', line):
+    error(filename, linenum, 'whitespace/braces', 5,
+          'Extra space before [')
+
+  # In range-based for, we wanted spaces before and after the colon, but
+  # not around "::" tokens that might appear.
+  if (Search(r'for *\(.*[^:]:[^: ]', line) or
+      Search(r'for *\(.*[^: ]:[^:]', line)):
+    error(filename, linenum, 'whitespace/forcolon', 2,
+          'Missing space around colon in range-based for loop')
+
+
+def CheckOperatorSpacing(filename, clean_lines, linenum, error):
+  """Checks for horizontal spacing around operators.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Don't try to do spacing checks for operator methods.  Do this by
+  # replacing the troublesome characters with something else,
+  # preserving column position for all other characters.
+  #
+  # The replacement is done repeatedly to avoid false positives from
+  # operators that call operators.
+  while True:
+    match = Match(r'^(.*\boperator\b)(\S+)(\s*\(.*)$', line)
+    if match:
+      line = match.group(1) + ('_' * len(match.group(2))) + match.group(3)
+    else:
+      break
+
+  # We allow no-spaces around = within an if: "if ( (a=Foo()) == 0 )".
+  # Otherwise not.  Note we only check for non-spaces on *both* sides;
+  # sometimes people put non-spaces on one side when aligning ='s among
+  # many lines (not that this is behavior that I approve of...)
+  if ((Search(r'[\w.]=', line) or
+       Search(r'=[\w.]', line))
+      and not Search(r'\b(if|while|for) ', line)
+      # Operators taken from [lex.operators] in C++11 standard.
+      and not Search(r'(>=|<=|==|!=|&=|\^=|\|=|\+=|\*=|\/=|\%=)', line)
+      and not Search(r'operator=', line)):
+    error(filename, linenum, 'whitespace/operators', 4,
+          'Missing spaces around =')
+
+  # It's ok not to have spaces around binary operators like + - * /, but if
+  # there's too little whitespace, we get concerned.  It's hard to tell,
+  # though, so we punt on this one for now.  TODO.
+
+  # You should always have whitespace around binary operators.
+  #
+  # Check <= and >= first to avoid false positives with < and >, then
+  # check non-include lines for spacing around < and >.
+  #
+  # If the operator is followed by a comma, assume it's be used in a
+  # macro context and don't do any checks.  This avoids false
+  # positives.
+  #
+  # Note that && is not included here.  Those are checked separately
+  # in CheckRValueReference
+  match = Search(r'[^<>=!\s](==|!=|<=|>=|\|\|)[^<>=!\s,;\)]', line)
+  if match:
+    error(filename, linenum, 'whitespace/operators', 3,
+          'Missing spaces around %s' % match.group(1))
+  elif not Match(r'#.*include', line):
+    # Look for < that is not surrounded by spaces.  This is only
+    # triggered if both sides are missing spaces, even though
+    # technically should should flag if at least one side is missing a
+    # space.  This is done to avoid some false positives with shifts.
+    match = Match(r'^(.*[^\s<])<[^\s=<,]', line)
+    if match:
+      (_, _, end_pos) = CloseExpression(
+          clean_lines, linenum, len(match.group(1)))
+      if end_pos <= -1:
+        error(filename, linenum, 'whitespace/operators', 3,
+              'Missing spaces around <')
+
+    # Look for > that is not surrounded by spaces.  Similar to the
+    # above, we only trigger if both sides are missing spaces to avoid
+    # false positives with shifts.
+    match = Match(r'^(.*[^-\s>])>[^\s=>,]', line)
+    if match:
+      (_, _, start_pos) = ReverseCloseExpression(
+          clean_lines, linenum, len(match.group(1)))
+      if start_pos <= -1:
+        error(filename, linenum, 'whitespace/operators', 3,
+              'Missing spaces around >')
+
+  # We allow no-spaces around << when used like this: 10<<20, but
+  # not otherwise (particularly, not when used as streams)
+  #
+  # We also allow operators following an opening parenthesis, since
+  # those tend to be macros that deal with operators.
+  match = Search(r'(operator|[^\s(<])(?:L|UL|ULL|l|ul|ull)?<<([^\s,=<])', line)
+  if (match and not (match.group(1).isdigit() and match.group(2).isdigit()) and
+      not (match.group(1) == 'operator' and match.group(2) == ';')):
+    error(filename, linenum, 'whitespace/operators', 3,
+          'Missing spaces around <<')
+
+  # We allow no-spaces around >> for almost anything.  This is because
+  # C++11 allows ">>" to close nested templates, which accounts for
+  # most cases when ">>" is not followed by a space.
+  #
+  # We still warn on ">>" followed by alpha character, because that is
+  # likely due to ">>" being used for right shifts, e.g.:
+  #   value >> alpha
+  #
+  # When ">>" is used to close templates, the alphanumeric letter that
+  # follows would be part of an identifier, and there should still be
+  # a space separating the template type and the identifier.
+  #   type<type<type>> alpha
+  match = Search(r'>>[a-zA-Z_]', line)
+  if match:
+    error(filename, linenum, 'whitespace/operators', 3,
+          'Missing spaces around >>')
+
+  # There shouldn't be space around unary operators
+  match = Search(r'(!\s|~\s|[\s]--[\s;]|[\s]\+\+[\s;])', line)
+  if match:
+    error(filename, linenum, 'whitespace/operators', 4,
+          'Extra space for operator %s' % match.group(1))
+
+
+def CheckParenthesisSpacing(filename, clean_lines, linenum, error):
+  """Checks for horizontal spacing around parentheses.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # No spaces after an if, while, switch, or for
+  match = Search(r' (if\(|for\(|while\(|switch\()', line)
+  if match:
+    error(filename, linenum, 'whitespace/parens', 5,
+          'Missing space before ( in %s' % match.group(1))
+
+  # For if/for/while/switch, the left and right parens should be
+  # consistent about how many spaces are inside the parens, and
+  # there should either be zero or one spaces inside the parens.
+  # We don't want: "if ( foo)" or "if ( foo   )".
+  # Exception: "for ( ; foo; bar)" and "for (foo; bar; )" are allowed.
+  match = Search(r'\b(if|for|while|switch)\s*'
+                 r'\(([ ]*)(.).*[^ ]+([ ]*)\)\s*{\s*$',
+                 line)
+  if match:
+    if len(match.group(2)) != len(match.group(4)):
+      if not (match.group(3) == ';' and
+              len(match.group(2)) == 1 + len(match.group(4)) or
+              not match.group(2) and Search(r'\bfor\s*\(.*; \)', line)):
+        error(filename, linenum, 'whitespace/parens', 5,
+              'Mismatching spaces inside () in %s' % match.group(1))
+    if len(match.group(2)) not in [0, 1]:
+      error(filename, linenum, 'whitespace/parens', 5,
+            'Should have zero or one spaces inside ( and ) in %s' %
+            match.group(1))
+
+
+def CheckCommaSpacing(filename, clean_lines, linenum, error):
+  """Checks for horizontal spacing near commas and semicolons.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  raw = clean_lines.lines_without_raw_strings
+  line = clean_lines.elided[linenum]
+
+  # You should always have a space after a comma (either as fn arg or operator)
+  #
+  # This does not apply when the non-space character following the
+  # comma is another comma, since the only time when that happens is
+  # for empty macro arguments.
+  #
+  # We run this check in two passes: first pass on elided lines to
+  # verify that lines contain missing whitespaces, second pass on raw
+  # lines to confirm that those missing whitespaces are not due to
+  # elided comments.
+  if (Search(r',[^,\s]', ReplaceAll(r'\boperator\s*,\s*\(', 'F(', line)) and
+      Search(r',[^,\s]', raw[linenum])):
+    error(filename, linenum, 'whitespace/comma', 3,
+          'Missing space after ,')
+
+  # You should always have a space after a semicolon
+  # except for few corner cases
+  # TODO(unknown): clarify if 'if (1) { return 1;}' is requires one more
+  # space after ;
+  if Search(r';[^\s};\\)/]', line):
+    error(filename, linenum, 'whitespace/semicolon', 3,
+          'Missing space after ;')
+
+
+def CheckBracesSpacing(filename, clean_lines, linenum, error):
+  """Checks for horizontal spacing near commas.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Except after an opening paren, or after another opening brace (in case of
+  # an initializer list, for instance), you should have spaces before your
+  # braces. And since you should never have braces at the beginning of a line,
+  # this is an easy test.
+  match = Match(r'^(.*[^ ({>]){', line)
+  if match:
+    # Try a bit harder to check for brace initialization.  This
+    # happens in one of the following forms:
+    #   Constructor() : initializer_list_{} { ... }
+    #   Constructor{}.MemberFunction()
+    #   Type variable{};
+    #   FunctionCall(type{}, ...);
+    #   LastArgument(..., type{});
+    #   LOG(INFO) << type{} << " ...";
+    #   map_of_type[{...}] = ...;
+    #   ternary = expr ? new type{} : nullptr;
+    #   OuterTemplate<InnerTemplateConstructor<Type>{}>
+    #
+    # We check for the character following the closing brace, and
+    # silence the warning if it's one of those listed above, i.e.
+    # "{.;,)<>]:".
+    #
+    # To account for nested initializer list, we allow any number of
+    # closing braces up to "{;,)<".  We can't simply silence the
+    # warning on first sight of closing brace, because that would
+    # cause false negatives for things that are not initializer lists.
+    #   Silence this:         But not this:
+    #     Outer{                if (...) {
+    #       Inner{...}            if (...){  // Missing space before {
+    #     };                    }
+    #
+    # There is a false negative with this approach if people inserted
+    # spurious semicolons, e.g. "if (cond){};", but we will catch the
+    # spurious semicolon with a separate check.
+    (endline, endlinenum, endpos) = CloseExpression(
+        clean_lines, linenum, len(match.group(1)))
+    trailing_text = ''
+    if endpos > -1:
+      trailing_text = endline[endpos:]
+    for offset in xrange(endlinenum + 1,
+                         min(endlinenum + 3, clean_lines.NumLines() - 1)):
+      trailing_text += clean_lines.elided[offset]
+    if not Match(r'^[\s}]*[{.;,)<>\]:]', trailing_text):
+      error(filename, linenum, 'whitespace/braces', 5,
+            'Missing space before {')
+
+  # Make sure '} else {' has spaces.
+  if Search(r'}else', line):
+    error(filename, linenum, 'whitespace/braces', 5,
+          'Missing space before else')
+
+  # You shouldn't have a space before a semicolon at the end of the line.
+  # There's a special case for "for" since the style guide allows space before
+  # the semicolon there.
+  if Search(r':\s*;\s*$', line):
+    error(filename, linenum, 'whitespace/semicolon', 5,
+          'Semicolon defining empty statement. Use {} instead.')
+  elif Search(r'^\s*;\s*$', line):
+    error(filename, linenum, 'whitespace/semicolon', 5,
+          'Line contains only semicolon. If this should be an empty statement, '
+          'use {} instead.')
+  elif (Search(r'\s+;\s*$', line) and
+        not Search(r'\bfor\b', line)):
+    error(filename, linenum, 'whitespace/semicolon', 5,
+          'Extra space before last semicolon. If this should be an empty '
+          'statement, use {} instead.')
+
+
+def IsDecltype(clean_lines, linenum, column):
+  """Check if the token ending on (linenum, column) is decltype().
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: the number of the line to check.
+    column: end column of the token to check.
+  Returns:
+    True if this token is decltype() expression, False otherwise.
+  """
+  (text, _, start_col) = ReverseCloseExpression(clean_lines, linenum, column)
+  if start_col < 0:
+    return False
+  if Search(r'\bdecltype\s*$', text[0:start_col]):
+    return True
+  return False
+
+
+def IsTemplateParameterList(clean_lines, linenum, column):
+  """Check if the token ending on (linenum, column) is the end of template<>.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: the number of the line to check.
+    column: end column of the token to check.
+  Returns:
+    True if this token is end of a template parameter list, False otherwise.
+  """
+  (_, startline, startpos) = ReverseCloseExpression(
+      clean_lines, linenum, column)
+  if (startpos > -1 and
+      Search(r'\btemplate\s*$', clean_lines.elided[startline][0:startpos])):
+    return True
+  return False
+
+
+def IsRValueType(typenames, clean_lines, nesting_state, linenum, column):
+  """Check if the token ending on (linenum, column) is a type.
+
+  Assumes that text to the right of the column is "&&" or a function
+  name.
+
+  Args:
+    typenames: set of type names from template-argument-list.
+    clean_lines: A CleansedLines instance containing the file.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    linenum: the number of the line to check.
+    column: end column of the token to check.
+  Returns:
+    True if this token is a type, False if we are not sure.
+  """
+  prefix = clean_lines.elided[linenum][0:column]
+
+  # Get one word to the left.  If we failed to do so, this is most
+  # likely not a type, since it's unlikely that the type name and "&&"
+  # would be split across multiple lines.
+  match = Match(r'^(.*)(\b\w+|[>*)&])\s*$', prefix)
+  if not match:
+    return False
+
+  # Check text following the token.  If it's "&&>" or "&&," or "&&...", it's
+  # most likely a rvalue reference used inside a template.
+  suffix = clean_lines.elided[linenum][column:]
+  if Match(r'&&\s*(?:[>,]|\.\.\.)', suffix):
+    return True
+
+  # Check for known types and end of templates:
+  #   int&& variable
+  #   vector<int>&& variable
+  #
+  # Because this function is called recursively, we also need to
+  # recognize pointer and reference types:
+  #   int* Function()
+  #   int& Function()
+  if (match.group(2) in typenames or
+      match.group(2) in ['char', 'char16_t', 'char32_t', 'wchar_t', 'bool',
+                         'short', 'int', 'long', 'signed', 'unsigned',
+                         'float', 'double', 'void', 'auto', '>', '*', '&']):
+    return True
+
+  # If we see a close parenthesis, look for decltype on the other side.
+  # decltype would unambiguously identify a type, anything else is
+  # probably a parenthesized expression and not a type.
+  if match.group(2) == ')':
+    return IsDecltype(
+        clean_lines, linenum, len(match.group(1)) + len(match.group(2)) - 1)
+
+  # Check for casts and cv-qualifiers.
+  #   match.group(1)  remainder
+  #   --------------  ---------
+  #   const_cast<     type&&
+  #   const           type&&
+  #   type            const&&
+  if Search(r'\b(?:const_cast\s*<|static_cast\s*<|dynamic_cast\s*<|'
+            r'reinterpret_cast\s*<|\w+\s)\s*$',
+            match.group(1)):
+    return True
+
+  # Look for a preceding symbol that might help differentiate the context.
+  # These are the cases that would be ambiguous:
+  #   match.group(1)  remainder
+  #   --------------  ---------
+  #   Call         (   expression &&
+  #   Declaration  (   type&&
+  #   sizeof       (   type&&
+  #   if           (   expression &&
+  #   while        (   expression &&
+  #   for          (   type&&
+  #   for(         ;   expression &&
+  #   statement    ;   type&&
+  #   block        {   type&&
+  #   constructor  {   expression &&
+  start = linenum
+  line = match.group(1)
+  match_symbol = None
+  while start >= 0:
+    # We want to skip over identifiers and commas to get to a symbol.
+    # Commas are skipped so that we can find the opening parenthesis
+    # for function parameter lists.
+    match_symbol = Match(r'^(.*)([^\w\s,])[\w\s,]*$', line)
+    if match_symbol:
+      break
+    start -= 1
+    line = clean_lines.elided[start]
+
+  if not match_symbol:
+    # Probably the first statement in the file is an rvalue reference
+    return True
+
+  if match_symbol.group(2) == '}':
+    # Found closing brace, probably an indicate of this:
+    #   block{} type&&
+    return True
+
+  if match_symbol.group(2) == ';':
+    # Found semicolon, probably one of these:
+    #   for(; expression &&
+    #   statement; type&&
+
+    # Look for the previous 'for(' in the previous lines.
+    before_text = match_symbol.group(1)
+    for i in xrange(start - 1, max(start - 6, 0), -1):
+      before_text = clean_lines.elided[i] + before_text
+    if Search(r'for\s*\([^{};]*$', before_text):
+      # This is the condition inside a for-loop
+      return False
+
+    # Did not find a for-init-statement before this semicolon, so this
+    # is probably a new statement and not a condition.
+    return True
+
+  if match_symbol.group(2) == '{':
+    # Found opening brace, probably one of these:
+    #   block{ type&& = ... ; }
+    #   constructor{ expression && expression }
+
+    # Look for a closing brace or a semicolon.  If we see a semicolon
+    # first, this is probably a rvalue reference.
+    line = clean_lines.elided[start][0:len(match_symbol.group(1)) + 1]
+    end = start
+    depth = 1
+    while True:
+      for ch in line:
+        if ch == ';':
+          return True
+        elif ch == '{':
+          depth += 1
+        elif ch == '}':
+          depth -= 1
+          if depth == 0:
+            return False
+      end += 1
+      if end >= clean_lines.NumLines():
+        break
+      line = clean_lines.elided[end]
+    # Incomplete program?
+    return False
+
+  if match_symbol.group(2) == '(':
+    # Opening parenthesis.  Need to check what's to the left of the
+    # parenthesis.  Look back one extra line for additional context.
+    before_text = match_symbol.group(1)
+    if linenum > 1:
+      before_text = clean_lines.elided[linenum - 1] + before_text
+    before_text = match_symbol.group(1)
+
+    # Patterns that are likely to be types:
+    #   [](type&&
+    #   for (type&&
+    #   sizeof(type&&
+    #   operator=(type&&
+    #
+    if Search(r'(?:\]|\bfor|\bsizeof|\boperator\s*\S+\s*)\s*$', before_text):
+      return True
+
+    # Patterns that are likely to be expressions:
+    #   if (expression &&
+    #   while (expression &&
+    #   : initializer(expression &&
+    #   , initializer(expression &&
+    #   ( FunctionCall(expression &&
+    #   + FunctionCall(expression &&
+    #   + (expression &&
+    #
+    # The last '+' represents operators such as '+' and '-'.
+    if Search(r'(?:\bif|\bwhile|[-+=%^(<!?:,&*]\s*)$', before_text):
+      return False
+
+    # Something else.  Check that tokens to the left look like
+    #   return_type function_name
+    match_func = Match(r'^(.*\S.*)\s+\w(?:\w|::)*(?:<[^<>]*>)?\s*$',
+                       match_symbol.group(1))
+    if match_func:
+      # Check for constructors, which don't have return types.
+      if Search(r'\b(?:explicit|inline)$', match_func.group(1)):
+        return True
+      implicit_constructor = Match(r'\s*(\w+)\((?:const\s+)?(\w+)', prefix)
+      if (implicit_constructor and
+          implicit_constructor.group(1) == implicit_constructor.group(2)):
+        return True
+      return IsRValueType(typenames, clean_lines, nesting_state, linenum,
+                          len(match_func.group(1)))
+
+    # Nothing before the function name.  If this is inside a block scope,
+    # this is probably a function call.
+    return not (nesting_state.previous_stack_top and
+                nesting_state.previous_stack_top.IsBlockInfo())
+
+  if match_symbol.group(2) == '>':
+    # Possibly a closing bracket, check that what's on the other side
+    # looks like the start of a template.
+    return IsTemplateParameterList(
+        clean_lines, start, len(match_symbol.group(1)))
+
+  # Some other symbol, usually something like "a=b&&c".  This is most
+  # likely not a type.
+  return False
+
+
+def IsDeletedOrDefault(clean_lines, linenum):
+  """Check if current constructor or operator is deleted or default.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+  Returns:
+    True if this is a deleted or default constructor.
+  """
+  open_paren = clean_lines.elided[linenum].find('(')
+  if open_paren < 0:
+    return False
+  (close_line, _, close_paren) = CloseExpression(
+      clean_lines, linenum, open_paren)
+  if close_paren < 0:
+    return False
+  return Match(r'\s*=\s*(?:delete|default)\b', close_line[close_paren:])
+
+
+def IsRValueAllowed(clean_lines, linenum, typenames):
+  """Check if RValue reference is allowed on a particular line.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    typenames: set of type names from template-argument-list.
+  Returns:
+    True if line is within the region where RValue references are allowed.
+  """
+  # Allow region marked by PUSH/POP macros
+  for i in xrange(linenum, 0, -1):
+    line = clean_lines.elided[i]
+    if Match(r'GOOGLE_ALLOW_RVALUE_REFERENCES_(?:PUSH|POP)', line):
+      if not line.endswith('PUSH'):
+        return False
+      for j in xrange(linenum, clean_lines.NumLines(), 1):
+        line = clean_lines.elided[j]
+        if Match(r'GOOGLE_ALLOW_RVALUE_REFERENCES_(?:PUSH|POP)', line):
+          return line.endswith('POP')
+
+  # Allow operator=
+  line = clean_lines.elided[linenum]
+  if Search(r'\boperator\s*=\s*\(', line):
+    return IsDeletedOrDefault(clean_lines, linenum)
+
+  # Allow constructors
+  match = Match(r'\s*(?:[\w<>]+::)*([\w<>]+)\s*::\s*([\w<>]+)\s*\(', line)
+  if match and match.group(1) == match.group(2):
+    return IsDeletedOrDefault(clean_lines, linenum)
+  if Search(r'\b(?:explicit|inline)\s+[\w<>]+\s*\(', line):
+    return IsDeletedOrDefault(clean_lines, linenum)
+
+  if Match(r'\s*[\w<>]+\s*\(', line):
+    previous_line = 'ReturnType'
+    if linenum > 0:
+      previous_line = clean_lines.elided[linenum - 1]
+    if Match(r'^\s*$', previous_line) or Search(r'[{}:;]\s*$', previous_line):
+      return IsDeletedOrDefault(clean_lines, linenum)
+
+  # Reject types not mentioned in template-argument-list
+  while line:
+    match = Match(r'^.*?(\w+)\s*&&(.*)$', line)
+    if not match:
+      break
+    if match.group(1) not in typenames:
+      return False
+    line = match.group(2)
+
+  # All RValue types that were in template-argument-list should have
+  # been removed by now.  Those were allowed, assuming that they will
+  # be forwarded.
+  #
+  # If there are no remaining RValue types left (i.e. types that were
+  # not found in template-argument-list), flag those as not allowed.
+  return line.find('&&') < 0
+
+
+def GetTemplateArgs(clean_lines, linenum):
+  """Find list of template arguments associated with this function declaration.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: Line number containing the start of the function declaration,
+             usually one line after the end of the template-argument-list.
+  Returns:
+    Set of type names, or empty set if this does not appear to have
+    any template parameters.
+  """
+  # Find start of function
+  func_line = linenum
+  while func_line > 0:
+    line = clean_lines.elided[func_line]
+    if Match(r'^\s*$', line):
+      return set()
+    if line.find('(') >= 0:
+      break
+    func_line -= 1
+  if func_line == 0:
+    return set()
+
+  # Collapse template-argument-list into a single string
+  argument_list = ''
+  match = Match(r'^(\s*template\s*)<', clean_lines.elided[func_line])
+  if match:
+    # template-argument-list on the same line as function name
+    start_col = len(match.group(1))
+    _, end_line, end_col = CloseExpression(clean_lines, func_line, start_col)
+    if end_col > -1 and end_line == func_line:
+      start_col += 1  # Skip the opening bracket
+      argument_list = clean_lines.elided[func_line][start_col:end_col]
+
+  elif func_line > 1:
+    # template-argument-list one line before function name
+    match = Match(r'^(.*)>\s*$', clean_lines.elided[func_line - 1])
+    if match:
+      end_col = len(match.group(1))
+      _, start_line, start_col = ReverseCloseExpression(
+          clean_lines, func_line - 1, end_col)
+      if start_col > -1:
+        start_col += 1  # Skip the opening bracket
+        while start_line < func_line - 1:
+          argument_list += clean_lines.elided[start_line][start_col:]
+          start_col = 0
+          start_line += 1
+        argument_list += clean_lines.elided[func_line - 1][start_col:end_col]
+
+  if not argument_list:
+    return set()
+
+  # Extract type names
+  typenames = set()
+  while True:
+    match = Match(r'^[,\s]*(?:typename|class)(?:\.\.\.)?\s+(\w+)(.*)$',
+                  argument_list)
+    if not match:
+      break
+    typenames.add(match.group(1))
+    argument_list = match.group(2)
+  return typenames
+
+
+def CheckRValueReference(filename, clean_lines, linenum, nesting_state, error):
+  """Check for rvalue references.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: The function to call with any errors found.
+  """
+  # Find lines missing spaces around &&.
+  # TODO(unknown): currently we don't check for rvalue references
+  # with spaces surrounding the && to avoid false positives with
+  # boolean expressions.
+  line = clean_lines.elided[linenum]
+  match = Match(r'^(.*\S)&&', line)
+  if not match:
+    match = Match(r'(.*)&&\S', line)
+  if (not match) or '(&&)' in line or Search(r'\boperator\s*$', match.group(1)):
+    return
+
+  # Either poorly formed && or an rvalue reference, check the context
+  # to get a more accurate error message.  Mostly we want to determine
+  # if what's to the left of "&&" is a type or not.
+  typenames = GetTemplateArgs(clean_lines, linenum)
+  and_pos = len(match.group(1))
+  if IsRValueType(typenames, clean_lines, nesting_state, linenum, and_pos):
+    if not IsRValueAllowed(clean_lines, linenum, typenames):
+      error(filename, linenum, 'build/c++11', 3,
+            'RValue references are an unapproved C++ feature.')
+  else:
+    error(filename, linenum, 'whitespace/operators', 3,
+          'Missing spaces around &&')
+
+
+def CheckSectionSpacing(filename, clean_lines, class_info, linenum, error):
+  """Checks for additional blank line issues related to sections.
+
+  Currently the only thing checked here is blank line before protected/private.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    class_info: A _ClassInfo objects.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  # Skip checks if the class is small, where small means 25 lines or less.
+  # 25 lines seems like a good cutoff since that's the usual height of
+  # terminals, and any class that can't fit in one screen can't really
+  # be considered "small".
+  #
+  # Also skip checks if we are on the first line.  This accounts for
+  # classes that look like
+  #   class Foo { public: ... };
+  #
+  # If we didn't find the end of the class, last_line would be zero,
+  # and the check will be skipped by the first condition.
+  if (class_info.last_line - class_info.starting_linenum <= 24 or
+      linenum <= class_info.starting_linenum):
+    return
+
+  matched = Match(r'\s*(public|protected|private):', clean_lines.lines[linenum])
+  if matched:
+    # Issue warning if the line before public/protected/private was
+    # not a blank line, but don't do this if the previous line contains
+    # "class" or "struct".  This can happen two ways:
+    #  - We are at the beginning of the class.
+    #  - We are forward-declaring an inner class that is semantically
+    #    private, but needed to be public for implementation reasons.
+    # Also ignores cases where the previous line ends with a backslash as can be
+    # common when defining classes in C macros.
+    prev_line = clean_lines.lines[linenum - 1]
+    if (not IsBlankLine(prev_line) and
+        not Search(r'\b(class|struct)\b', prev_line) and
+        not Search(r'\\$', prev_line)):
+      # Try a bit harder to find the beginning of the class.  This is to
+      # account for multi-line base-specifier lists, e.g.:
+      #   class Derived
+      #       : public Base {
+      end_class_head = class_info.starting_linenum
+      for i in range(class_info.starting_linenum, linenum):
+        if Search(r'\{\s*$', clean_lines.lines[i]):
+          end_class_head = i
+          break
+      if end_class_head < linenum - 1:
+        error(filename, linenum, 'whitespace/blank_line', 3,
+              '"%s:" should be preceded by a blank line' % matched.group(1))
+
+
+def GetPreviousNonBlankLine(clean_lines, linenum):
+  """Return the most recent non-blank line and its line number.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file contents.
+    linenum: The number of the line to check.
+
+  Returns:
+    A tuple with two elements.  The first element is the contents of the last
+    non-blank line before the current line, or the empty string if this is the
+    first non-blank line.  The second is the line number of that line, or -1
+    if this is the first non-blank line.
+  """
+
+  prevlinenum = linenum - 1
+  while prevlinenum >= 0:
+    prevline = clean_lines.elided[prevlinenum]
+    if not IsBlankLine(prevline):     # if not a blank line...
+      return (prevline, prevlinenum)
+    prevlinenum -= 1
+  return ('', -1)
+
+
+def CheckBraces(filename, clean_lines, linenum, error):
+  """Looks for misplaced braces (e.g. at the end of line).
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+
+  line = clean_lines.elided[linenum]        # get rid of comments and strings
+
+  if Match(r'\s*{\s*$', line):
+    # We allow an open brace to start a line in the case where someone is using
+    # braces in a block to explicitly create a new scope, which is commonly used
+    # to control the lifetime of stack-allocated variables.  Braces are also
+    # used for brace initializers inside function calls.  We don't detect this
+    # perfectly: we just don't complain if the last non-whitespace character on
+    # the previous non-blank line is ',', ';', ':', '(', '{', or '}', or if the
+    # previous line starts a preprocessor block.
+    prevline = GetPreviousNonBlankLine(clean_lines, linenum)[0]
+    if (not Search(r'[,;:}{(]\s*$', prevline) and
+        not Match(r'\s*#', prevline)):
+      error(filename, linenum, 'whitespace/braces', 4,
+            '{ should almost always be at the end of the previous line')
+
+  # An else clause should be on the same line as the preceding closing brace.
+  if Match(r'\s*else\b\s*(?:if\b|\{|$)', line):
+    prevline = GetPreviousNonBlankLine(clean_lines, linenum)[0]
+    if Match(r'\s*}\s*$', prevline):
+      error(filename, linenum, 'whitespace/newline', 4,
+            'An else should appear on the same line as the preceding }')
+
+  # If braces come on one side of an else, they should be on both.
+  # However, we have to worry about "else if" that spans multiple lines!
+  if Search(r'else if\s*\(', line):       # could be multi-line if
+    brace_on_left = bool(Search(r'}\s*else if\s*\(', line))
+    # find the ( after the if
+    pos = line.find('else if')
+    pos = line.find('(', pos)
+    if pos > 0:
+      (endline, _, endpos) = CloseExpression(clean_lines, linenum, pos)
+      brace_on_right = endline[endpos:].find('{') != -1
+      if brace_on_left != brace_on_right:    # must be brace after if
+        error(filename, linenum, 'readability/braces', 5,
+              'If an else has a brace on one side, it should have it on both')
+  elif Search(r'}\s*else[^{]*$', line) or Match(r'[^}]*else\s*{', line):
+    error(filename, linenum, 'readability/braces', 5,
+          'If an else has a brace on one side, it should have it on both')
+
+  # Likewise, an else should never have the else clause on the same line
+  if Search(r'\belse [^\s{]', line) and not Search(r'\belse if\b', line):
+    error(filename, linenum, 'whitespace/newline', 4,
+          'Else clause should never be on same line as else (use 2 lines)')
+
+  # In the same way, a do/while should never be on one line
+  if Match(r'\s*do [^\s{]', line):
+    error(filename, linenum, 'whitespace/newline', 4,
+          'do/while clauses should not be on a single line')
+
+  # Check single-line if/else bodies. The style guide says 'curly braces are not
+  # required for single-line statements'. We additionally allow multi-line,
+  # single statements, but we reject anything with more than one semicolon in
+  # it. This means that the first semicolon after the if should be at the end of
+  # its line, and the line after that should have an indent level equal to or
+  # lower than the if. We also check for ambiguous if/else nesting without
+  # braces.
+  if_else_match = Search(r'\b(if\s*\(|else\b)', line)
+  if if_else_match and not Match(r'\s*#', line):
+    if_indent = GetIndentLevel(line)
+    endline, endlinenum, endpos = line, linenum, if_else_match.end()
+    if_match = Search(r'\bif\s*\(', line)
+    if if_match:
+      # This could be a multiline if condition, so find the end first.
+      pos = if_match.end() - 1
+      (endline, endlinenum, endpos) = CloseExpression(clean_lines, linenum, pos)
+    # Check for an opening brace, either directly after the if or on the next
+    # line. If found, this isn't a single-statement conditional.
+    if (not Match(r'\s*{', endline[endpos:])
+        and not (Match(r'\s*$', endline[endpos:])
+                 and endlinenum < (len(clean_lines.elided) - 1)
+                 and Match(r'\s*{', clean_lines.elided[endlinenum + 1]))):
+      while (endlinenum < len(clean_lines.elided)
+             and ';' not in clean_lines.elided[endlinenum][endpos:]):
+        endlinenum += 1
+        endpos = 0
+      if endlinenum < len(clean_lines.elided):
+        endline = clean_lines.elided[endlinenum]
+        # We allow a mix of whitespace and closing braces (e.g. for one-liner
+        # methods) and a single \ after the semicolon (for macros)
+        endpos = endline.find(';')
+        if not Match(r';[\s}]*(\\?)$', endline[endpos:]):
+          # Semicolon isn't the last character, there's something trailing.
+          # Output a warning if the semicolon is not contained inside
+          # a lambda expression.
+          if not Match(r'^[^{};]*\[[^\[\]]*\][^{}]*\{[^{}]*\}\s*\)*[;,]\s*$',
+                       endline):
+            error(filename, linenum, 'readability/braces', 4,
+                  'If/else bodies with multiple statements require braces')
+        elif endlinenum < len(clean_lines.elided) - 1:
+          # Make sure the next line is dedented
+          next_line = clean_lines.elided[endlinenum + 1]
+          next_indent = GetIndentLevel(next_line)
+          # With ambiguous nested if statements, this will error out on the
+          # if that *doesn't* match the else, regardless of whether it's the
+          # inner one or outer one.
+          if (if_match and Match(r'\s*else\b', next_line)
+              and next_indent != if_indent):
+            error(filename, linenum, 'readability/braces', 4,
+                  'Else clause should be indented at the same level as if. '
+                  'Ambiguous nested if/else chains require braces.')
+          elif next_indent > if_indent:
+            error(filename, linenum, 'readability/braces', 4,
+                  'If/else bodies with multiple statements require braces')
+
+
+def CheckTrailingSemicolon(filename, clean_lines, linenum, error):
+  """Looks for redundant trailing semicolon.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+
+  line = clean_lines.elided[linenum]
+
+  # Block bodies should not be followed by a semicolon.  Due to C++11
+  # brace initialization, there are more places where semicolons are
+  # required than not, so we use a whitelist approach to check these
+  # rather than a blacklist.  These are the places where "};" should
+  # be replaced by just "}":
+  # 1. Some flavor of block following closing parenthesis:
+  #    for (;;) {};
+  #    while (...) {};
+  #    switch (...) {};
+  #    Function(...) {};
+  #    if (...) {};
+  #    if (...) else if (...) {};
+  #
+  # 2. else block:
+  #    if (...) else {};
+  #
+  # 3. const member function:
+  #    Function(...) const {};
+  #
+  # 4. Block following some statement:
+  #    x = 42;
+  #    {};
+  #
+  # 5. Block at the beginning of a function:
+  #    Function(...) {
+  #      {};
+  #    }
+  #
+  #    Note that naively checking for the preceding "{" will also match
+  #    braces inside multi-dimensional arrays, but this is fine since
+  #    that expression will not contain semicolons.
+  #
+  # 6. Block following another block:
+  #    while (true) {}
+  #    {};
+  #
+  # 7. End of namespaces:
+  #    namespace {};
+  #
+  #    These semicolons seems far more common than other kinds of
+  #    redundant semicolons, possibly due to people converting classes
+  #    to namespaces.  For now we do not warn for this case.
+  #
+  # Try matching case 1 first.
+  match = Match(r'^(.*\)\s*)\{', line)
+  if match:
+    # Matched closing parenthesis (case 1).  Check the token before the
+    # matching opening parenthesis, and don't warn if it looks like a
+    # macro.  This avoids these false positives:
+    #  - macro that defines a base class
+    #  - multi-line macro that defines a base class
+    #  - macro that defines the whole class-head
+    #
+    # But we still issue warnings for macros that we know are safe to
+    # warn, specifically:
+    #  - TEST, TEST_F, TEST_P, MATCHER, MATCHER_P
+    #  - TYPED_TEST
+    #  - INTERFACE_DEF
+    #  - EXCLUSIVE_LOCKS_REQUIRED, SHARED_LOCKS_REQUIRED, LOCKS_EXCLUDED:
+    #
+    # We implement a whitelist of safe macros instead of a blacklist of
+    # unsafe macros, even though the latter appears less frequently in
+    # google code and would have been easier to implement.  This is because
+    # the downside for getting the whitelist wrong means some extra
+    # semicolons, while the downside for getting the blacklist wrong
+    # would result in compile errors.
+    #
+    # In addition to macros, we also don't want to warn on
+    #  - Compound literals
+    #  - Lambdas
+    #  - alignas specifier with anonymous structs:
+    closing_brace_pos = match.group(1).rfind(')')
+    opening_parenthesis = ReverseCloseExpression(
+        clean_lines, linenum, closing_brace_pos)
+    if opening_parenthesis[2] > -1:
+      line_prefix = opening_parenthesis[0][0:opening_parenthesis[2]]
+      macro = Search(r'\b([A-Z_]+)\s*$', line_prefix)
+      func = Match(r'^(.*\])\s*$', line_prefix)
+      if ((macro and
+           macro.group(1) not in (
+               'TEST', 'TEST_F', 'MATCHER', 'MATCHER_P', 'TYPED_TEST',
+               'EXCLUSIVE_LOCKS_REQUIRED', 'SHARED_LOCKS_REQUIRED',
+               'LOCKS_EXCLUDED', 'INTERFACE_DEF')) or
+          (func and not Search(r'\boperator\s*\[\s*\]', func.group(1))) or
+          Search(r'\b(?:struct|union)\s+alignas\s*$', line_prefix) or
+          Search(r'\s+=\s*$', line_prefix)):
+        match = None
+    if (match and
+        opening_parenthesis[1] > 1 and
+        Search(r'\]\s*$', clean_lines.elided[opening_parenthesis[1] - 1])):
+      # Multi-line lambda-expression
+      match = None
+
+  else:
+    # Try matching cases 2-3.
+    match = Match(r'^(.*(?:else|\)\s*const)\s*)\{', line)
+    if not match:
+      # Try matching cases 4-6.  These are always matched on separate lines.
+      #
+      # Note that we can't simply concatenate the previous line to the
+      # current line and do a single match, otherwise we may output
+      # duplicate warnings for the blank line case:
+      #   if (cond) {
+      #     // blank line
+      #   }
+      prevline = GetPreviousNonBlankLine(clean_lines, linenum)[0]
+      if prevline and Search(r'[;{}]\s*$', prevline):
+        match = Match(r'^(\s*)\{', line)
+
+  # Check matching closing brace
+  if match:
+    (endline, endlinenum, endpos) = CloseExpression(
+        clean_lines, linenum, len(match.group(1)))
+    if endpos > -1 and Match(r'^\s*;', endline[endpos:]):
+      # Current {} pair is eligible for semicolon check, and we have found
+      # the redundant semicolon, output warning here.
+      #
+      # Note: because we are scanning forward for opening braces, and
+      # outputting warnings for the matching closing brace, if there are
+      # nested blocks with trailing semicolons, we will get the error
+      # messages in reversed order.
+      error(filename, endlinenum, 'readability/braces', 4,
+            "You don't need a ; after a }")
+
+
+def CheckEmptyBlockBody(filename, clean_lines, linenum, error):
+  """Look for empty loop/conditional body with only a single semicolon.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+
+  # Search for loop keywords at the beginning of the line.  Because only
+  # whitespaces are allowed before the keywords, this will also ignore most
+  # do-while-loops, since those lines should start with closing brace.
+  #
+  # We also check "if" blocks here, since an empty conditional block
+  # is likely an error.
+  line = clean_lines.elided[linenum]
+  matched = Match(r'\s*(for|while|if)\s*\(', line)
+  if matched:
+    # Find the end of the conditional expression
+    (end_line, end_linenum, end_pos) = CloseExpression(
+        clean_lines, linenum, line.find('('))
+
+    # Output warning if what follows the condition expression is a semicolon.
+    # No warning for all other cases, including whitespace or newline, since we
+    # have a separate check for semicolons preceded by whitespace.
+    if end_pos >= 0 and Match(r';', end_line[end_pos:]):
+      if matched.group(1) == 'if':
+        error(filename, end_linenum, 'whitespace/empty_conditional_body', 5,
+              'Empty conditional bodies should use {}')
+      else:
+        error(filename, end_linenum, 'whitespace/empty_loop_body', 5,
+              'Empty loop bodies should use {} or continue')
+
+
+def FindCheckMacro(line):
+  """Find a replaceable CHECK-like macro.
+
+  Args:
+    line: line to search on.
+  Returns:
+    (macro name, start position), or (None, -1) if no replaceable
+    macro is found.
+  """
+  for macro in _CHECK_MACROS:
+    i = line.find(macro)
+    if i >= 0:
+      # Find opening parenthesis.  Do a regular expression match here
+      # to make sure that we are matching the expected CHECK macro, as
+      # opposed to some other macro that happens to contain the CHECK
+      # substring.
+      matched = Match(r'^(.*\b' + macro + r'\s*)\(', line)
+      if not matched:
+        continue
+      return (macro, len(matched.group(1)))
+  return (None, -1)
+
+
+def CheckCheck(filename, clean_lines, linenum, error):
+  """Checks the use of CHECK and EXPECT macros.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+
+  # Decide the set of replacement macros that should be suggested
+  lines = clean_lines.elided
+  (check_macro, start_pos) = FindCheckMacro(lines[linenum])
+  if not check_macro:
+    return
+
+  # Find end of the boolean expression by matching parentheses
+  (last_line, end_line, end_pos) = CloseExpression(
+      clean_lines, linenum, start_pos)
+  if end_pos < 0:
+    return
+
+  # If the check macro is followed by something other than a
+  # semicolon, assume users will log their own custom error messages
+  # and don't suggest any replacements.
+  if not Match(r'\s*;', last_line[end_pos:]):
+    return
+
+  if linenum == end_line:
+    expression = lines[linenum][start_pos + 1:end_pos - 1]
+  else:
+    expression = lines[linenum][start_pos + 1:]
+    for i in xrange(linenum + 1, end_line):
+      expression += lines[i]
+    expression += last_line[0:end_pos - 1]
+
+  # Parse expression so that we can take parentheses into account.
+  # This avoids false positives for inputs like "CHECK((a < 4) == b)",
+  # which is not replaceable by CHECK_LE.
+  lhs = ''
+  rhs = ''
+  operator = None
+  while expression:
+    matched = Match(r'^\s*(<<|<<=|>>|>>=|->\*|->|&&|\|\||'
+                    r'==|!=|>=|>|<=|<|\()(.*)$', expression)
+    if matched:
+      token = matched.group(1)
+      if token == '(':
+        # Parenthesized operand
+        expression = matched.group(2)
+        (end, _) = FindEndOfExpressionInLine(expression, 0, ['('])
+        if end < 0:
+          return  # Unmatched parenthesis
+        lhs += '(' + expression[0:end]
+        expression = expression[end:]
+      elif token in ('&&', '||'):
+        # Logical and/or operators.  This means the expression
+        # contains more than one term, for example:
+        #   CHECK(42 < a && a < b);
+        #
+        # These are not replaceable with CHECK_LE, so bail out early.
+        return
+      elif token in ('<<', '<<=', '>>', '>>=', '->*', '->'):
+        # Non-relational operator
+        lhs += token
+        expression = matched.group(2)
+      else:
+        # Relational operator
+        operator = token
+        rhs = matched.group(2)
+        break
+    else:
+      # Unparenthesized operand.  Instead of appending to lhs one character
+      # at a time, we do another regular expression match to consume several
+      # characters at once if possible.  Trivial benchmark shows that this
+      # is more efficient when the operands are longer than a single
+      # character, which is generally the case.
+      matched = Match(r'^([^-=!<>()&|]+)(.*)$', expression)
+      if not matched:
+        matched = Match(r'^(\s*\S)(.*)$', expression)
+        if not matched:
+          break
+      lhs += matched.group(1)
+      expression = matched.group(2)
+
+  # Only apply checks if we got all parts of the boolean expression
+  if not (lhs and operator and rhs):
+    return
+
+  # Check that rhs do not contain logical operators.  We already know
+  # that lhs is fine since the loop above parses out && and ||.
+  if rhs.find('&&') > -1 or rhs.find('||') > -1:
+    return
+
+  # At least one of the operands must be a constant literal.  This is
+  # to avoid suggesting replacements for unprintable things like
+  # CHECK(variable != iterator)
+  #
+  # The following pattern matches decimal, hex integers, strings, and
+  # characters (in that order).
+  lhs = lhs.strip()
+  rhs = rhs.strip()
+  match_constant = r'^([-+]?(\d+|0[xX][0-9a-fA-F]+)[lLuU]{0,3}|".*"|\'.*\')$'
+  if Match(match_constant, lhs) or Match(match_constant, rhs):
+    # Note: since we know both lhs and rhs, we can provide a more
+    # descriptive error message like:
+    #   Consider using CHECK_EQ(x, 42) instead of CHECK(x == 42)
+    # Instead of:
+    #   Consider using CHECK_EQ instead of CHECK(a == b)
+    #
+    # We are still keeping the less descriptive message because if lhs
+    # or rhs gets long, the error message might become unreadable.
+    error(filename, linenum, 'readability/check', 2,
+          'Consider using %s instead of %s(a %s b)' % (
+              _CHECK_REPLACEMENT[check_macro][operator],
+              check_macro, operator))
+
+
+def CheckAltTokens(filename, clean_lines, linenum, error):
+  """Check alternative keywords being used in boolean expressions.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Avoid preprocessor lines
+  if Match(r'^\s*#', line):
+    return
+
+  # Last ditch effort to avoid multi-line comments.  This will not help
+  # if the comment started before the current line or ended after the
+  # current line, but it catches most of the false positives.  At least,
+  # it provides a way to workaround this warning for people who use
+  # multi-line comments in preprocessor macros.
+  #
+  # TODO(unknown): remove this once cpplint has better support for
+  # multi-line comments.
+  if line.find('/*') >= 0 or line.find('*/') >= 0:
+    return
+
+  for match in _ALT_TOKEN_REPLACEMENT_PATTERN.finditer(line):
+    error(filename, linenum, 'readability/alt_tokens', 2,
+          'Use operator %s instead of %s' % (
+              _ALT_TOKEN_REPLACEMENT[match.group(1)], match.group(1)))
+
+
+def GetLineWidth(line):
+  """Determines the width of the line in column positions.
+
+  Args:
+    line: A string, which may be a Unicode string.
+
+  Returns:
+    The width of the line in column positions, accounting for Unicode
+    combining characters and wide characters.
+  """
+  if isinstance(line, unicode):
+    width = 0
+    for uc in unicodedata.normalize('NFC', line):
+      if unicodedata.east_asian_width(uc) in ('W', 'F'):
+        width += 2
+      elif not unicodedata.combining(uc):
+        width += 1
+    return width
+  else:
+    return len(line)
+
+
+def CheckStyle(filename, clean_lines, linenum, file_extension, nesting_state,
+               error):
+  """Checks rules from the 'C++ style rules' section of cppguide.html.
+
+  Most of these rules are hard to test (naming, comment style), but we
+  do what we can.  In particular we check for 2-space indents, line lengths,
+  tab usage, spaces inside code, etc.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    file_extension: The extension (without the dot) of the filename.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: The function to call with any errors found.
+  """
+
+  # Don't use "elided" lines here, otherwise we can't check commented lines.
+  # Don't want to use "raw" either, because we don't want to check inside C++11
+  # raw strings,
+  raw_lines = clean_lines.lines_without_raw_strings
+  line = raw_lines[linenum]
+
+  if line.find('\t') != -1:
+    error(filename, linenum, 'whitespace/tab', 1,
+          'Tab found; better to use spaces')
+
+  # One or three blank spaces at the beginning of the line is weird; it's
+  # hard to reconcile that with 2-space indents.
+  # NOTE: here are the conditions rob pike used for his tests.  Mine aren't
+  # as sophisticated, but it may be worth becoming so:  RLENGTH==initial_spaces
+  # if(RLENGTH > 20) complain = 0;
+  # if(match($0, " +(error|private|public|protected):")) complain = 0;
+  # if(match(prev, "&& *$")) complain = 0;
+  # if(match(prev, "\\|\\| *$")) complain = 0;
+  # if(match(prev, "[\",=><] *$")) complain = 0;
+  # if(match($0, " <<")) complain = 0;
+  # if(match(prev, " +for \\(")) complain = 0;
+  # if(prevodd && match(prevprev, " +for \\(")) complain = 0;
+  scope_or_label_pattern = r'\s*\w+\s*:\s*\\?$'
+  classinfo = nesting_state.InnermostClass()
+  initial_spaces = 0
+  cleansed_line = clean_lines.elided[linenum]
+  while initial_spaces < len(line) and line[initial_spaces] == ' ':
+    initial_spaces += 1
+  if line and line[-1].isspace():
+    error(filename, linenum, 'whitespace/end_of_line', 4,
+          'Line ends in whitespace.  Consider deleting these extra spaces.')
+  # There are certain situations we allow one space, notably for
+  # section labels, and also lines containing multi-line raw strings.
+  elif ((initial_spaces == 1 or initial_spaces == 3) and
+        not Match(scope_or_label_pattern, cleansed_line) and
+        not (clean_lines.raw_lines[linenum] != line and
+             Match(r'^\s*""', line))):
+    error(filename, linenum, 'whitespace/indent', 3,
+          'Weird number of spaces at line-start.  '
+          'Are you using a 2-space indent?')
+
+  # Check if the line is a header guard.
+  is_header_guard = False
+  if file_extension == 'h' or file_extension == 'hpp':
+    cppvar = GetHeaderGuardCPPVariable(filename)
+    if (line.startswith('#ifndef %s' % cppvar) or
+        line.startswith('#define %s' % cppvar) or
+        line.startswith('#endif  // %s' % cppvar)):
+      is_header_guard = True
+  # #include lines and header guards can be long, since there's no clean way to
+  # split them.
+  #
+  # URLs can be long too.  It's possible to split these, but it makes them
+  # harder to cut&paste.
+  #
+  # The "$Id:...$" comment may also get very long without it being the
+  # developers fault.
+  if (not line.startswith('#include') and not is_header_guard and
+      not Match(r'^\s*//.*http(s?)://\S*$', line) and
+      not Match(r'^// \$Id:.*#[0-9]+ \$$', line)):
+    line_width = GetLineWidth(line)
+    extended_length = int((_line_length * 1.25))
+    if line_width > extended_length:
+      error(filename, linenum, 'whitespace/line_length', 4,
+            'Lines should very rarely be longer than %i characters' %
+            extended_length)
+    elif line_width > _line_length:
+      error(filename, linenum, 'whitespace/line_length', 2,
+            'Lines should be <= %i characters long' % _line_length)
+
+  if (cleansed_line.count(';') > 1 and
+      # for loops are allowed two ;'s (and may run over two lines).
+      cleansed_line.find('for') == -1 and
+      (GetPreviousNonBlankLine(clean_lines, linenum)[0].find('for') == -1 or
+       GetPreviousNonBlankLine(clean_lines, linenum)[0].find(';') != -1) and
+      # It's ok to have many commands in a switch case that fits in 1 line
+      not ((cleansed_line.find('case ') != -1 or
+            cleansed_line.find('default:') != -1) and
+           cleansed_line.find('break;') != -1)):
+    error(filename, linenum, 'whitespace/newline', 0,
+          'More than one command on the same line')
+
+  # Some more style checks
+  CheckBraces(filename, clean_lines, linenum, error)
+  CheckTrailingSemicolon(filename, clean_lines, linenum, error)
+  CheckEmptyBlockBody(filename, clean_lines, linenum, error)
+  CheckAccess(filename, clean_lines, linenum, nesting_state, error)
+  CheckSpacing(filename, clean_lines, linenum, nesting_state, error)
+  CheckOperatorSpacing(filename, clean_lines, linenum, error)
+  CheckParenthesisSpacing(filename, clean_lines, linenum, error)
+  CheckCommaSpacing(filename, clean_lines, linenum, error)
+  CheckBracesSpacing(filename, clean_lines, linenum, error)
+  CheckSpacingForFunctionCall(filename, clean_lines, linenum, error)
+  CheckRValueReference(filename, clean_lines, linenum, nesting_state, error)
+  CheckCheck(filename, clean_lines, linenum, error)
+  CheckAltTokens(filename, clean_lines, linenum, error)
+  classinfo = nesting_state.InnermostClass()
+  if classinfo:
+    CheckSectionSpacing(filename, clean_lines, classinfo, linenum, error)
+
+
+_RE_PATTERN_INCLUDE = re.compile(r'^\s*#\s*include\s*([<"])([^>"]*)[>"].*$')
+# Matches the first component of a filename delimited by -s and _s. That is:
+#  _RE_FIRST_COMPONENT.match('foo').group(0) == 'foo'
+#  _RE_FIRST_COMPONENT.match('foo.cc').group(0) == 'foo'
+#  _RE_FIRST_COMPONENT.match('foo-bar_baz.cc').group(0) == 'foo'
+#  _RE_FIRST_COMPONENT.match('foo_bar-baz.cc').group(0) == 'foo'
+_RE_FIRST_COMPONENT = re.compile(r'^[^-_.]+')
+
+
+def _DropCommonSuffixes(filename):
+  """Drops common suffixes like _test.cc or -inl.h from filename.
+
+  For example:
+    >>> _DropCommonSuffixes('foo/foo-inl.h')
+    'foo/foo'
+    >>> _DropCommonSuffixes('foo/bar/foo.cc')
+    'foo/bar/foo'
+    >>> _DropCommonSuffixes('foo/foo_internal.h')
+    'foo/foo'
+    >>> _DropCommonSuffixes('foo/foo_unusualinternal.h')
+    'foo/foo_unusualinternal'
+
+  Args:
+    filename: The input filename.
+
+  Returns:
+    The filename with the common suffix removed.
+  """
+  for suffix in ('test.cc', 'regtest.cc', 'unittest.cc',
+                 'inl.h', 'impl.h', 'internal.h'):
+    if (filename.endswith(suffix) and len(filename) > len(suffix) and
+        filename[-len(suffix) - 1] in ('-', '_')):
+      return filename[:-len(suffix) - 1]
+  return os.path.splitext(filename)[0]
+
+
+def _IsTestFilename(filename):
+  """Determines if the given filename has a suffix that identifies it as a test.
+
+  Args:
+    filename: The input filename.
+
+  Returns:
+    True if 'filename' looks like a test, False otherwise.
+  """
+  if (filename.endswith('_test.cc') or
+      filename.endswith('_unittest.cc') or
+      filename.endswith('_regtest.cc')):
+    return True
+  else:
+    return False
+
+
+def _ClassifyInclude(fileinfo, include, is_system):
+  """Figures out what kind of header 'include' is.
+
+  Args:
+    fileinfo: The current file cpplint is running over. A FileInfo instance.
+    include: The path to a #included file.
+    is_system: True if the #include used <> rather than "".
+
+  Returns:
+    One of the _XXX_HEADER constants.
+
+  For example:
+    >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'stdio.h', True)
+    _C_SYS_HEADER
+    >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'string', True)
+    _CPP_SYS_HEADER
+    >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'foo/foo.h', False)
+    _LIKELY_MY_HEADER
+    >>> _ClassifyInclude(FileInfo('foo/foo_unknown_extension.cc'),
+    ...                  'bar/foo_other_ext.h', False)
+    _POSSIBLE_MY_HEADER
+    >>> _ClassifyInclude(FileInfo('foo/foo.cc'), 'foo/bar.h', False)
+    _OTHER_HEADER
+  """
+  # This is a list of all standard c++ header files, except
+  # those already checked for above.
+  is_cpp_h = include in _CPP_HEADERS
+
+  if is_system:
+    if is_cpp_h:
+      return _CPP_SYS_HEADER
+    else:
+      return _C_SYS_HEADER
+
+  # If the target file and the include we're checking share a
+  # basename when we drop common extensions, and the include
+  # lives in . , then it's likely to be owned by the target file.
+  target_dir, target_base = (
+      os.path.split(_DropCommonSuffixes(fileinfo.RepositoryName())))
+  include_dir, include_base = os.path.split(_DropCommonSuffixes(include))
+  if target_base == include_base and (
+      include_dir == target_dir or
+      include_dir == os.path.normpath(target_dir + '/../public')):
+    return _LIKELY_MY_HEADER
+
+  # If the target and include share some initial basename
+  # component, it's possible the target is implementing the
+  # include, so it's allowed to be first, but we'll never
+  # complain if it's not there.
+  target_first_component = _RE_FIRST_COMPONENT.match(target_base)
+  include_first_component = _RE_FIRST_COMPONENT.match(include_base)
+  if (target_first_component and include_first_component and
+      target_first_component.group(0) ==
+      include_first_component.group(0)):
+    return _POSSIBLE_MY_HEADER
+
+  return _OTHER_HEADER
+
+
+
+def CheckIncludeLine(filename, clean_lines, linenum, include_state, error):
+  """Check rules that are applicable to #include lines.
+
+  Strings on #include lines are NOT removed from elided line, to make
+  certain tasks easier. However, to prevent false positives, checks
+  applicable to #include lines in CheckLanguage must be put here.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    include_state: An _IncludeState instance in which the headers are inserted.
+    error: The function to call with any errors found.
+  """
+  fileinfo = FileInfo(filename)
+  line = clean_lines.lines[linenum]
+
+  # "include" should use the new style "foo/bar.h" instead of just "bar.h"
+  # Only do this check if the included header follows google naming
+  # conventions.  If not, assume that it's a 3rd party API that
+  # requires special include conventions.
+  #
+  # We also make an exception for Lua headers, which follow google
+  # naming convention but not the include convention.
+  match = Match(r'#include\s*"([^/]+\.h)"', line)
+  if match and not _THIRD_PARTY_HEADERS_PATTERN.match(match.group(1)):
+    error(filename, linenum, 'build/include', 4,
+          'Include the directory when naming .h files')
+
+  # we shouldn't include a file more than once. actually, there are a
+  # handful of instances where doing so is okay, but in general it's
+  # not.
+  match = _RE_PATTERN_INCLUDE.search(line)
+  if match:
+    include = match.group(2)
+    is_system = (match.group(1) == '<')
+    duplicate_line = include_state.FindHeader(include)
+    if duplicate_line >= 0:
+      error(filename, linenum, 'build/include', 4,
+            '"%s" already included at %s:%s' %
+            (include, filename, duplicate_line))
+    elif (include.endswith('.cc') and
+          os.path.dirname(fileinfo.RepositoryName()) != os.path.dirname(include)):
+      error(filename, linenum, 'build/include', 4,
+            'Do not include .cc files from other packages')
+    elif not _THIRD_PARTY_HEADERS_PATTERN.match(include):
+      include_state.include_list[-1].append((include, linenum))
+
+      # We want to ensure that headers appear in the right order:
+      # 1) for foo.cc, foo.h  (preferred location)
+      # 2) c system files
+      # 3) cpp system files
+      # 4) for foo.cc, foo.h  (deprecated location)
+      # 5) other google headers
+      #
+      # We classify each include statement as one of those 5 types
+      # using a number of techniques. The include_state object keeps
+      # track of the highest type seen, and complains if we see a
+      # lower type after that.
+      error_message = include_state.CheckNextIncludeOrder(
+          _ClassifyInclude(fileinfo, include, is_system))
+      if error_message:
+        error(filename, linenum, 'build/include_order', 4,
+              '%s. Should be: %s.h, c system, c++ system, other.' %
+              (error_message, fileinfo.BaseName()))
+      canonical_include = include_state.CanonicalizeAlphabeticalOrder(include)
+      if not include_state.IsInAlphabeticalOrder(
+          clean_lines, linenum, canonical_include):
+        error(filename, linenum, 'build/include_alpha', 4,
+              'Include "%s" not in alphabetical order' % include)
+      include_state.SetLastHeader(canonical_include)
+
+
+
+def _GetTextInside(text, start_pattern):
+  r"""Retrieves all the text between matching open and close parentheses.
+
+  Given a string of lines and a regular expression string, retrieve all the text
+  following the expression and between opening punctuation symbols like
+  (, [, or {, and the matching close-punctuation symbol. This properly nested
+  occurrences of the punctuations, so for the text like
+    printf(a(), b(c()));
+  a call to _GetTextInside(text, r'printf\(') will return 'a(), b(c())'.
+  start_pattern must match string having an open punctuation symbol at the end.
+
+  Args:
+    text: The lines to extract text. Its comments and strings must be elided.
+           It can be single line and can span multiple lines.
+    start_pattern: The regexp string indicating where to start extracting
+                   the text.
+  Returns:
+    The extracted text.
+    None if either the opening string or ending punctuation could not be found.
+  """
+  # TODO(unknown): Audit cpplint.py to see what places could be profitably
+  # rewritten to use _GetTextInside (and use inferior regexp matching today).
+
+  # Give opening punctuations to get the matching close-punctuations.
+  matching_punctuation = {'(': ')', '{': '}', '[': ']'}
+  closing_punctuation = set(matching_punctuation.itervalues())
+
+  # Find the position to start extracting text.
+  match = re.search(start_pattern, text, re.M)
+  if not match:  # start_pattern not found in text.
+    return None
+  start_position = match.end(0)
+
+  assert start_position > 0, (
+      'start_pattern must ends with an opening punctuation.')
+  assert text[start_position - 1] in matching_punctuation, (
+      'start_pattern must ends with an opening punctuation.')
+  # Stack of closing punctuations we expect to have in text after position.
+  punctuation_stack = [matching_punctuation[text[start_position - 1]]]
+  position = start_position
+  while punctuation_stack and position < len(text):
+    if text[position] == punctuation_stack[-1]:
+      punctuation_stack.pop()
+    elif text[position] in closing_punctuation:
+      # A closing punctuation without matching opening punctuations.
+      return None
+    elif text[position] in matching_punctuation:
+      punctuation_stack.append(matching_punctuation[text[position]])
+    position += 1
+  if punctuation_stack:
+    # Opening punctuations left without matching close-punctuations.
+    return None
+  # punctuations match.
+  return text[start_position:position - 1]
+
+
+# Patterns for matching call-by-reference parameters.
+#
+# Supports nested templates up to 2 levels deep using this messy pattern:
+#   < (?: < (?: < [^<>]*
+#               >
+#           |   [^<>] )*
+#         >
+#     |   [^<>] )*
+#   >
+_RE_PATTERN_IDENT = r'[_a-zA-Z]\w*'  # =~ [[:alpha:]][[:alnum:]]*
+_RE_PATTERN_TYPE = (
+    r'(?:const\s+)?(?:typename\s+|class\s+|struct\s+|union\s+|enum\s+)?'
+    r'(?:\w|'
+    r'\s*<(?:<(?:<[^<>]*>|[^<>])*>|[^<>])*>|'
+    r'::)+')
+# A call-by-reference parameter ends with '& identifier'.
+_RE_PATTERN_REF_PARAM = re.compile(
+    r'(' + _RE_PATTERN_TYPE + r'(?:\s*(?:\bconst\b|[*]))*\s*'
+    r'&\s*' + _RE_PATTERN_IDENT + r')\s*(?:=[^,()]+)?[,)]')
+# A call-by-const-reference parameter either ends with 'const& identifier'
+# or looks like 'const type& identifier' when 'type' is atomic.
+_RE_PATTERN_CONST_REF_PARAM = (
+    r'(?:.*\s*\bconst\s*&\s*' + _RE_PATTERN_IDENT +
+    r'|const\s+' + _RE_PATTERN_TYPE + r'\s*&\s*' + _RE_PATTERN_IDENT + r')')
+
+
+def CheckLanguage(filename, clean_lines, linenum, file_extension,
+                  include_state, nesting_state, error):
+  """Checks rules from the 'C++ language rules' section of cppguide.html.
+
+  Some of these rules are hard to test (function overloading, using
+  uint32 inappropriately), but we do the best we can.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    file_extension: The extension (without the dot) of the filename.
+    include_state: An _IncludeState instance in which the headers are inserted.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: The function to call with any errors found.
+  """
+  # If the line is empty or consists of entirely a comment, no need to
+  # check it.
+  line = clean_lines.elided[linenum]
+  if not line:
+    return
+
+  match = _RE_PATTERN_INCLUDE.search(line)
+  if match:
+    CheckIncludeLine(filename, clean_lines, linenum, include_state, error)
+    return
+
+  # Reset include state across preprocessor directives.  This is meant
+  # to silence warnings for conditional includes.
+  match = Match(r'^\s*#\s*(if|ifdef|ifndef|elif|else|endif)\b', line)
+  if match:
+    include_state.ResetSection(match.group(1))
+
+  # Make Windows paths like Unix.
+  fullname = os.path.abspath(filename).replace('\\', '/')
+  
+  # Perform other checks now that we are sure that this is not an include line
+  CheckCasts(filename, clean_lines, linenum, error)
+  CheckGlobalStatic(filename, clean_lines, linenum, error)
+  CheckPrintf(filename, clean_lines, linenum, error)
+
+  if file_extension == 'h':
+    # TODO(unknown): check that 1-arg constructors are explicit.
+    #                How to tell it's a constructor?
+    #                (handled in CheckForNonStandardConstructs for now)
+    # TODO(unknown): check that classes declare or disable copy/assign
+    #                (level 1 error)
+    pass
+
+  # Check if people are using the verboten C basic types.  The only exception
+  # we regularly allow is "unsigned short port" for port.
+  if Search(r'\bshort port\b', line):
+    if not Search(r'\bunsigned short port\b', line):
+      error(filename, linenum, 'runtime/int', 4,
+            'Use "unsigned short" for ports, not "short"')
+  else:
+    match = Search(r'\b(short|long(?! +double)|long long)\b', line)
+    if match:
+      error(filename, linenum, 'runtime/int', 4,
+            'Use int16/int64/etc, rather than the C type %s' % match.group(1))
+
+  # Check if some verboten operator overloading is going on
+  # TODO(unknown): catch out-of-line unary operator&:
+  #   class X {};
+  #   int operator&(const X& x) { return 42; }  // unary operator&
+  # The trick is it's hard to tell apart from binary operator&:
+  #   class Y { int operator&(const Y& x) { return 23; } }; // binary operator&
+  if Search(r'\boperator\s*&\s*\(\s*\)', line):
+    error(filename, linenum, 'runtime/operator', 4,
+          'Unary operator& is dangerous.  Do not use it.')
+
+  # Check for suspicious usage of "if" like
+  # } if (a == b) {
+  if Search(r'\}\s*if\s*\(', line):
+    error(filename, linenum, 'readability/braces', 4,
+          'Did you mean "else if"? If not, start a new line for "if".')
+
+  # Check for potential format string bugs like printf(foo).
+  # We constrain the pattern not to pick things like DocidForPrintf(foo).
+  # Not perfect but it can catch printf(foo.c_str()) and printf(foo->c_str())
+  # TODO(unknown): Catch the following case. Need to change the calling
+  # convention of the whole function to process multiple line to handle it.
+  #   printf(
+  #       boy_this_is_a_really_long_variable_that_cannot_fit_on_the_prev_line);
+  printf_args = _GetTextInside(line, r'(?i)\b(string)?printf\s*\(')
+  if printf_args:
+    match = Match(r'([\w.\->()]+)$', printf_args)
+    if match and match.group(1) != '__VA_ARGS__':
+      function_name = re.search(r'\b((?:string)?printf)\s*\(',
+                                line, re.I).group(1)
+      error(filename, linenum, 'runtime/printf', 4,
+            'Potential format string bug. Do %s("%%s", %s) instead.'
+            % (function_name, match.group(1)))
+
+  # Check for potential memset bugs like memset(buf, sizeof(buf), 0).
+  match = Search(r'memset\s*\(([^,]*),\s*([^,]*),\s*0\s*\)', line)
+  if match and not Match(r"^''|-?[0-9]+|0x[0-9A-Fa-f]$", match.group(2)):
+    error(filename, linenum, 'runtime/memset', 4,
+          'Did you mean "memset(%s, 0, %s)"?'
+          % (match.group(1), match.group(2)))
+
+  if Search(r'\busing namespace\b', line):
+    error(filename, linenum, 'build/namespaces', 5,
+          'Do not use namespace using-directives.  '
+          'Use using-declarations instead.')
+
+  # Detect variable-length arrays.
+  match = Match(r'\s*(.+::)?(\w+) [a-z]\w*\[(.+)];', line)
+  if (match and match.group(2) != 'return' and match.group(2) != 'delete' and
+      match.group(3).find(']') == -1):
+    # Split the size using space and arithmetic operators as delimiters.
+    # If any of the resulting tokens are not compile time constants then
+    # report the error.
+    tokens = re.split(r'\s|\+|\-|\*|\/|<<|>>]', match.group(3))
+    is_const = True
+    skip_next = False
+    for tok in tokens:
+      if skip_next:
+        skip_next = False
+        continue
+
+      if Search(r'sizeof\(.+\)', tok): continue
+      if Search(r'arraysize\(\w+\)', tok): continue
+
+      tok = tok.lstrip('(')
+      tok = tok.rstrip(')')
+      if not tok: continue
+      if Match(r'\d+', tok): continue
+      if Match(r'0[xX][0-9a-fA-F]+', tok): continue
+      if Match(r'k[A-Z0-9]\w*', tok): continue
+      if Match(r'(.+::)?k[A-Z0-9]\w*', tok): continue
+      if Match(r'(.+::)?[A-Z][A-Z0-9_]*', tok): continue
+      # A catch all for tricky sizeof cases, including 'sizeof expression',
+      # 'sizeof(*type)', 'sizeof(const type)', 'sizeof(struct StructName)'
+      # requires skipping the next token because we split on ' ' and '*'.
+      if tok.startswith('sizeof'):
+        skip_next = True
+        continue
+      is_const = False
+      break
+    if not is_const:
+      error(filename, linenum, 'runtime/arrays', 1,
+            'Do not use variable-length arrays.  Use an appropriately named '
+            "('k' followed by CamelCase) compile-time constant for the size.")
+
+  # Check for use of unnamed namespaces in header files.  Registration
+  # macros are typically OK, so we allow use of "namespace {" on lines
+  # that end with backslashes.
+  if (file_extension == 'h'
+      and Search(r'\bnamespace\s*{', line)
+      and line[-1] != '\\'):
+    error(filename, linenum, 'build/namespaces', 4,
+          'Do not use unnamed namespaces in header files.  See '
+          'http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml#Namespaces'
+          ' for more information.')
+
+
+def CheckGlobalStatic(filename, clean_lines, linenum, error):
+  """Check for unsafe global or static objects.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Match two lines at a time to support multiline declarations
+  if linenum + 1 < clean_lines.NumLines() and not Search(r'[;({]', line):
+    line += clean_lines.elided[linenum + 1].strip()
+
+  # Check for people declaring static/global STL strings at the top level.
+  # This is dangerous because the C++ language does not guarantee that
+  # globals with constructors are initialized before the first access.
+  match = Match(
+      r'((?:|static +)(?:|const +))string +([a-zA-Z0-9_:]+)\b(.*)',
+      line)
+
+  # Remove false positives:
+  # - String pointers (as opposed to values).
+  #    string *pointer
+  #    const string *pointer
+  #    string const *pointer
+  #    string *const pointer
+  #
+  # - Functions and template specializations.
+  #    string Function<Type>(...
+  #    string Class<Type>::Method(...
+  #
+  # - Operators.  These are matched separately because operator names
+  #   cross non-word boundaries, and trying to match both operators
+  #   and functions at the same time would decrease accuracy of
+  #   matching identifiers.
+  #    string Class::operator*()
+  if (match and
+      not Search(r'\bstring\b(\s+const)?\s*\*\s*(const\s+)?\w', line) and
+      not Search(r'\boperator\W', line) and
+      not Match(r'\s*(<.*>)?(::[a-zA-Z0-9_]+)*\s*\(([^"]|$)', match.group(3))):
+    error(filename, linenum, 'runtime/string', 4,
+          'For a static/global string constant, use a C style string instead: '
+          '"%schar %s[]".' %
+          (match.group(1), match.group(2)))
+
+  if Search(r'\b([A-Za-z0-9_]*_)\(\1\)', line):
+    error(filename, linenum, 'runtime/init', 4,
+          'You seem to be initializing a member variable with itself.')
+
+
+def CheckPrintf(filename, clean_lines, linenum, error):
+  """Check for printf related issues.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # When snprintf is used, the second argument shouldn't be a literal.
+  match = Search(r'snprintf\s*\(([^,]*),\s*([0-9]*)\s*,', line)
+  if match and match.group(2) != '0':
+    # If 2nd arg is zero, snprintf is used to calculate size.
+    error(filename, linenum, 'runtime/printf', 3,
+          'If you can, use sizeof(%s) instead of %s as the 2nd arg '
+          'to snprintf.' % (match.group(1), match.group(2)))
+
+  # Check if some verboten C functions are being used.
+  if Search(r'\bsprintf\s*\(', line):
+    error(filename, linenum, 'runtime/printf', 5,
+          'Never use sprintf. Use snprintf instead.')
+  match = Search(r'\b(strcpy|strcat)\s*\(', line)
+  if match:
+    error(filename, linenum, 'runtime/printf', 4,
+          'Almost always, snprintf is better than %s' % match.group(1))
+
+
+def IsDerivedFunction(clean_lines, linenum):
+  """Check if current line contains an inherited function.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+  Returns:
+    True if current line contains a function with "override"
+    virt-specifier.
+  """
+  # Scan back a few lines for start of current function
+  for i in xrange(linenum, max(-1, linenum - 10), -1):
+    match = Match(r'^([^()]*\w+)\(', clean_lines.elided[i])
+    if match:
+      # Look for "override" after the matching closing parenthesis
+      line, _, closing_paren = CloseExpression(
+          clean_lines, i, len(match.group(1)))
+      return (closing_paren >= 0 and
+              Search(r'\boverride\b', line[closing_paren:]))
+  return False
+
+
+def IsOutOfLineMethodDefinition(clean_lines, linenum):
+  """Check if current line contains an out-of-line method definition.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+  Returns:
+    True if current line contains an out-of-line method definition.
+  """
+  # Scan back a few lines for start of current function
+  for i in xrange(linenum, max(-1, linenum - 10), -1):
+    if Match(r'^([^()]*\w+)\(', clean_lines.elided[i]):
+      return Match(r'^[^()]*\w+::\w+\(', clean_lines.elided[i]) is not None
+  return False
+
+
+def IsInitializerList(clean_lines, linenum):
+  """Check if current line is inside constructor initializer list.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+  Returns:
+    True if current line appears to be inside constructor initializer
+    list, False otherwise.
+  """
+  for i in xrange(linenum, 1, -1):
+    line = clean_lines.elided[i]
+    if i == linenum:
+      remove_function_body = Match(r'^(.*)\{\s*$', line)
+      if remove_function_body:
+        line = remove_function_body.group(1)
+
+    if Search(r'\s:\s*\w+[({]', line):
+      # A lone colon tend to indicate the start of a constructor
+      # initializer list.  It could also be a ternary operator, which
+      # also tend to appear in constructor initializer lists as
+      # opposed to parameter lists.
+      return True
+    if Search(r'\}\s*,\s*$', line):
+      # A closing brace followed by a comma is probably the end of a
+      # brace-initialized member in constructor initializer list.
+      return True
+    if Search(r'[{};]\s*$', line):
+      # Found one of the following:
+      # - A closing brace or semicolon, probably the end of the previous
+      #   function.
+      # - An opening brace, probably the start of current class or namespace.
+      #
+      # Current line is probably not inside an initializer list since
+      # we saw one of those things without seeing the starting colon.
+      return False
+
+  # Got to the beginning of the file without seeing the start of
+  # constructor initializer list.
+  return False
+
+
+def CheckForNonConstReference(filename, clean_lines, linenum,
+                              nesting_state, error):
+  """Check for non-const references.
+
+  Separate from CheckLanguage since it scans backwards from current
+  line, instead of scanning forward.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: The function to call with any errors found.
+  """
+  # Do nothing if there is no '&' on current line.
+  line = clean_lines.elided[linenum]
+  if '&' not in line:
+    return
+
+  # If a function is inherited, current function doesn't have much of
+  # a choice, so any non-const references should not be blamed on
+  # derived function.
+  if IsDerivedFunction(clean_lines, linenum):
+    return
+
+  # Don't warn on out-of-line method definitions, as we would warn on the
+  # in-line declaration, if it isn't marked with 'override'.
+  if IsOutOfLineMethodDefinition(clean_lines, linenum):
+    return
+
+  # Long type names may be broken across multiple lines, usually in one
+  # of these forms:
+  #   LongType
+  #       ::LongTypeContinued &identifier
+  #   LongType::
+  #       LongTypeContinued &identifier
+  #   LongType<
+  #       ...>::LongTypeContinued &identifier
+  #
+  # If we detected a type split across two lines, join the previous
+  # line to current line so that we can match const references
+  # accordingly.
+  #
+  # Note that this only scans back one line, since scanning back
+  # arbitrary number of lines would be expensive.  If you have a type
+  # that spans more than 2 lines, please use a typedef.
+  if linenum > 1:
+    previous = None
+    if Match(r'\s*::(?:[\w<>]|::)+\s*&\s*\S', line):
+      # previous_line\n + ::current_line
+      previous = Search(r'\b((?:const\s*)?(?:[\w<>]|::)+[\w<>])\s*$',
+                        clean_lines.elided[linenum - 1])
+    elif Match(r'\s*[a-zA-Z_]([\w<>]|::)+\s*&\s*\S', line):
+      # previous_line::\n + current_line
+      previous = Search(r'\b((?:const\s*)?(?:[\w<>]|::)+::)\s*$',
+                        clean_lines.elided[linenum - 1])
+    if previous:
+      line = previous.group(1) + line.lstrip()
+    else:
+      # Check for templated parameter that is split across multiple lines
+      endpos = line.rfind('>')
+      if endpos > -1:
+        (_, startline, startpos) = ReverseCloseExpression(
+            clean_lines, linenum, endpos)
+        if startpos > -1 and startline < linenum:
+          # Found the matching < on an earlier line, collect all
+          # pieces up to current line.
+          line = ''
+          for i in xrange(startline, linenum + 1):
+            line += clean_lines.elided[i].strip()
+
+  # Check for non-const references in function parameters.  A single '&' may
+  # found in the following places:
+  #   inside expression: binary & for bitwise AND
+  #   inside expression: unary & for taking the address of something
+  #   inside declarators: reference parameter
+  # We will exclude the first two cases by checking that we are not inside a
+  # function body, including one that was just introduced by a trailing '{'.
+  # TODO(unknown): Doesn't account for 'catch(Exception& e)' [rare].
+  if (nesting_state.previous_stack_top and
+      not (isinstance(nesting_state.previous_stack_top, _ClassInfo) or
+           isinstance(nesting_state.previous_stack_top, _NamespaceInfo))):
+    # Not at toplevel, not within a class, and not within a namespace
+    return
+
+  # Avoid initializer lists.  We only need to scan back from the
+  # current line for something that starts with ':'.
+  #
+  # We don't need to check the current line, since the '&' would
+  # appear inside the second set of parentheses on the current line as
+  # opposed to the first set.
+  if linenum > 0:
+    for i in xrange(linenum - 1, max(0, linenum - 10), -1):
+      previous_line = clean_lines.elided[i]
+      if not Search(r'[),]\s*$', previous_line):
+        break
+      if Match(r'^\s*:\s+\S', previous_line):
+        return
+
+  # Avoid preprocessors
+  if Search(r'\\\s*$', line):
+    return
+
+  # Avoid constructor initializer lists
+  if IsInitializerList(clean_lines, linenum):
+    return
+
+  # We allow non-const references in a few standard places, like functions
+  # called "swap()" or iostream operators like "<<" or ">>".  Do not check
+  # those function parameters.
+  #
+  # We also accept & in static_assert, which looks like a function but
+  # it's actually a declaration expression.
+  whitelisted_functions = (r'(?:[sS]wap(?:<\w:+>)?|'
+                           r'operator\s*[<>][<>]|'
+                           r'static_assert|COMPILE_ASSERT'
+                           r')\s*\(')
+  if Search(whitelisted_functions, line):
+    return
+  elif not Search(r'\S+\([^)]*$', line):
+    # Don't see a whitelisted function on this line.  Actually we
+    # didn't see any function name on this line, so this is likely a
+    # multi-line parameter list.  Try a bit harder to catch this case.
+    for i in xrange(2):
+      if (linenum > i and
+          Search(whitelisted_functions, clean_lines.elided[linenum - i - 1])):
+        return
+
+  decls = ReplaceAll(r'{[^}]*}', ' ', line)  # exclude function body
+  for parameter in re.findall(_RE_PATTERN_REF_PARAM, decls):
+    if not Match(_RE_PATTERN_CONST_REF_PARAM, parameter):
+      error(filename, linenum, 'runtime/references', 2,
+            'Is this a non-const reference? '
+            'If so, make const or use a pointer: ' +
+            ReplaceAll(' *<', '<', parameter))
+
+
+def CheckCasts(filename, clean_lines, linenum, error):
+  """Various cast related checks.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Check to see if they're using an conversion function cast.
+  # I just try to capture the most common basic types, though there are more.
+  # Parameterless conversion functions, such as bool(), are allowed as they are
+  # probably a member operator declaration or default constructor.
+  match = Search(
+      r'(\bnew\s+|\S<\s*(?:const\s+)?)?\b'
+      r'(int|float|double|bool|char|int32|uint32|int64|uint64)'
+      r'(\([^)].*)', line)
+  expecting_function = ExpectingFunctionArgs(clean_lines, linenum)
+  if match and not expecting_function:
+    matched_type = match.group(2)
+
+    # matched_new_or_template is used to silence two false positives:
+    # - New operators
+    # - Template arguments with function types
+    #
+    # For template arguments, we match on types immediately following
+    # an opening bracket without any spaces.  This is a fast way to
+    # silence the common case where the function type is the first
+    # template argument.  False negative with less-than comparison is
+    # avoided because those operators are usually followed by a space.
+    #
+    #   function<double(double)>   // bracket + no space = false positive
+    #   value < double(42)         // bracket + space = true positive
+    matched_new_or_template = match.group(1)
+
+    # Avoid arrays by looking for brackets that come after the closing
+    # parenthesis.
+    if Match(r'\([^()]+\)\s*\[', match.group(3)):
+      return
+
+    # Other things to ignore:
+    # - Function pointers
+    # - Casts to pointer types
+    # - Placement new
+    # - Alias declarations
+    matched_funcptr = match.group(3)
+    if (matched_new_or_template is None and
+        not (matched_funcptr and
+             (Match(r'\((?:[^() ]+::\s*\*\s*)?[^() ]+\)\s*\(',
+                    matched_funcptr) or
+              matched_funcptr.startswith('(*)'))) and
+        not Match(r'\s*using\s+\S+\s*=\s*' + matched_type, line) and
+        not Search(r'new\(\S+\)\s*' + matched_type, line)):
+      error(filename, linenum, 'readability/casting', 4,
+            'Using deprecated casting style.  '
+            'Use static_cast<%s>(...) instead' %
+            matched_type)
+
+  if not expecting_function:
+    CheckCStyleCast(filename, clean_lines, linenum, 'static_cast',
+                    r'\((int|float|double|bool|char|u?int(16|32|64))\)', error)
+
+  # This doesn't catch all cases. Consider (const char * const)"hello".
+  #
+  # (char *) "foo" should always be a const_cast (reinterpret_cast won't
+  # compile).
+  if CheckCStyleCast(filename, clean_lines, linenum, 'const_cast',
+                     r'\((char\s?\*+\s?)\)\s*"', error):
+    pass
+  else:
+    # Check pointer casts for other than string constants
+    CheckCStyleCast(filename, clean_lines, linenum, 'reinterpret_cast',
+                    r'\((\w+\s?\*+\s?)\)', error)
+
+  # In addition, we look for people taking the address of a cast.  This
+  # is dangerous -- casts can assign to temporaries, so the pointer doesn't
+  # point where you think.
+  #
+  # Some non-identifier character is required before the '&' for the
+  # expression to be recognized as a cast.  These are casts:
+  #   expression = &static_cast<int*>(temporary());
+  #   function(&(int*)(temporary()));
+  #
+  # This is not a cast:
+  #   reference_type&(int* function_param);
+  match = Search(
+      r'(?:[^\w]&\(([^)*][^)]*)\)[\w(])|'
+      r'(?:[^\w]&(static|dynamic|down|reinterpret)_cast\b)', line)
+  if match:
+    # Try a better error message when the & is bound to something
+    # dereferenced by the casted pointer, as opposed to the casted
+    # pointer itself.
+    parenthesis_error = False
+    match = Match(r'^(.*&(?:static|dynamic|down|reinterpret)_cast\b)<', line)
+    if match:
+      _, y1, x1 = CloseExpression(clean_lines, linenum, len(match.group(1)))
+      if x1 >= 0 and clean_lines.elided[y1][x1] == '(':
+        _, y2, x2 = CloseExpression(clean_lines, y1, x1)
+        if x2 >= 0:
+          extended_line = clean_lines.elided[y2][x2:]
+          if y2 < clean_lines.NumLines() - 1:
+            extended_line += clean_lines.elided[y2 + 1]
+          if Match(r'\s*(?:->|\[)', extended_line):
+            parenthesis_error = True
+
+    if parenthesis_error:
+      error(filename, linenum, 'readability/casting', 4,
+            ('Are you taking an address of something dereferenced '
+             'from a cast?  Wrapping the dereferenced expression in '
+             'parentheses will make the binding more obvious'))
+    else:
+      error(filename, linenum, 'runtime/casting', 4,
+            ('Are you taking an address of a cast?  '
+             'This is dangerous: could be a temp var.  '
+             'Take the address before doing the cast, rather than after'))
+
+
+def CheckCStyleCast(filename, clean_lines, linenum, cast_type, pattern, error):
+  """Checks for a C-style cast by looking for the pattern.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    cast_type: The string for the C++ cast to recommend.  This is either
+      reinterpret_cast, static_cast, or const_cast, depending.
+    pattern: The regular expression used to find C-style casts.
+    error: The function to call with any errors found.
+
+  Returns:
+    True if an error was emitted.
+    False otherwise.
+  """
+  line = clean_lines.elided[linenum]
+  match = Search(pattern, line)
+  if not match:
+    return False
+
+  # Exclude lines with keywords that tend to look like casts
+  context = line[0:match.start(1) - 1]
+  if Match(r'.*\b(?:sizeof|alignof|alignas|[_A-Z][_A-Z0-9]*)\s*$', context):
+    return False
+
+  # Try expanding current context to see if we one level of
+  # parentheses inside a macro.
+  if linenum > 0:
+    for i in xrange(linenum - 1, max(0, linenum - 5), -1):
+      context = clean_lines.elided[i] + context
+  if Match(r'.*\b[_A-Z][_A-Z0-9]*\s*\((?:\([^()]*\)|[^()])*$', context):
+    return False
+
+  # operator++(int) and operator--(int)
+  if context.endswith(' operator++') or context.endswith(' operator--'):
+    return False
+
+  # A single unnamed argument for a function tends to look like old
+  # style cast.  If we see those, don't issue warnings for deprecated
+  # casts, instead issue warnings for unnamed arguments where
+  # appropriate.
+  #
+  # These are things that we want warnings for, since the style guide
+  # explicitly require all parameters to be named:
+  #   Function(int);
+  #   Function(int) {
+  #   ConstMember(int) const;
+  #   ConstMember(int) const {
+  #   ExceptionMember(int) throw (...);
+  #   ExceptionMember(int) throw (...) {
+  #   PureVirtual(int) = 0;
+  #   [](int) -> bool {
+  #
+  # These are functions of some sort, where the compiler would be fine
+  # if they had named parameters, but people often omit those
+  # identifiers to reduce clutter:
+  #   (FunctionPointer)(int);
+  #   (FunctionPointer)(int) = value;
+  #   Function((function_pointer_arg)(int))
+  #   Function((function_pointer_arg)(int), int param)
+  #   <TemplateArgument(int)>;
+  #   <(FunctionPointerTemplateArgument)(int)>;
+  remainder = line[match.end(0):]
+  if Match(r'^\s*(?:;|const\b|throw\b|final\b|override\b|[=>{),]|->)',
+           remainder):
+    # Looks like an unnamed parameter.
+
+    # Don't warn on any kind of template arguments.
+    if Match(r'^\s*>', remainder):
+      return False
+
+    # Don't warn on assignments to function pointers, but keep warnings for
+    # unnamed parameters to pure virtual functions.  Note that this pattern
+    # will also pass on assignments of "0" to function pointers, but the
+    # preferred values for those would be "nullptr" or "NULL".
+    matched_zero = Match(r'^\s=\s*(\S+)\s*;', remainder)
+    if matched_zero and matched_zero.group(1) != '0':
+      return False
+
+    # Don't warn on function pointer declarations.  For this we need
+    # to check what came before the "(type)" string.
+    if Match(r'.*\)\s*$', line[0:match.start(0)]):
+      return False
+
+    # Don't warn if the parameter is named with block comments, e.g.:
+    #  Function(int /*unused_param*/);
+    raw_line = clean_lines.raw_lines[linenum]
+    if '/*' in raw_line:
+      return False
+
+    # Passed all filters, issue warning here.
+    error(filename, linenum, 'readability/function', 3,
+          'All parameters should be named in a function')
+    return True
+
+  # At this point, all that should be left is actual casts.
+  error(filename, linenum, 'readability/casting', 4,
+        'Using C-style cast.  Use %s<%s>(...) instead' %
+        (cast_type, match.group(1)))
+
+  return True
+
+
+def ExpectingFunctionArgs(clean_lines, linenum):
+  """Checks whether where function type arguments are expected.
+
+  Args:
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+
+  Returns:
+    True if the line at 'linenum' is inside something that expects arguments
+    of function types.
+  """
+  line = clean_lines.elided[linenum]
+  return (Match(r'^\s*MOCK_(CONST_)?METHOD\d+(_T)?\(', line) or
+          (linenum >= 2 and
+           (Match(r'^\s*MOCK_(?:CONST_)?METHOD\d+(?:_T)?\((?:\S+,)?\s*$',
+                  clean_lines.elided[linenum - 1]) or
+            Match(r'^\s*MOCK_(?:CONST_)?METHOD\d+(?:_T)?\(\s*$',
+                  clean_lines.elided[linenum - 2]) or
+            Search(r'\bstd::m?function\s*\<\s*$',
+                   clean_lines.elided[linenum - 1]))))
+
+
+_HEADERS_CONTAINING_TEMPLATES = (
+    ('<deque>', ('deque',)),
+    ('<functional>', ('unary_function', 'binary_function',
+                      'plus', 'minus', 'multiplies', 'divides', 'modulus',
+                      'negate',
+                      'equal_to', 'not_equal_to', 'greater', 'less',
+                      'greater_equal', 'less_equal',
+                      'logical_and', 'logical_or', 'logical_not',
+                      'unary_negate', 'not1', 'binary_negate', 'not2',
+                      'bind1st', 'bind2nd',
+                      'pointer_to_unary_function',
+                      'pointer_to_binary_function',
+                      'ptr_fun',
+                      'mem_fun_t', 'mem_fun', 'mem_fun1_t', 'mem_fun1_ref_t',
+                      'mem_fun_ref_t',
+                      'const_mem_fun_t', 'const_mem_fun1_t',
+                      'const_mem_fun_ref_t', 'const_mem_fun1_ref_t',
+                      'mem_fun_ref',
+                     )),
+    ('<limits>', ('numeric_limits',)),
+    ('<list>', ('list',)),
+    ('<map>', ('map', 'multimap',)),
+    ('<memory>', ('allocator',)),
+    ('<queue>', ('queue', 'priority_queue',)),
+    ('<set>', ('set', 'multiset',)),
+    ('<stack>', ('stack',)),
+    ('<string>', ('char_traits', 'basic_string',)),
+    ('<tuple>', ('tuple',)),
+    ('<utility>', ('pair',)),
+    ('<vector>', ('vector',)),
+
+    # gcc extensions.
+    # Note: std::hash is their hash, ::hash is our hash
+    ('<hash_map>', ('hash_map', 'hash_multimap',)),
+    ('<hash_set>', ('hash_set', 'hash_multiset',)),
+    ('<slist>', ('slist',)),
+    )
+
+_RE_PATTERN_STRING = re.compile(r'\bstring\b')
+
+_re_pattern_algorithm_header = []
+for _template in ('copy', 'max', 'min', 'min_element', 'sort', 'swap',
+                  'transform'):
+  # Match max<type>(..., ...), max(..., ...), but not foo->max, foo.max or
+  # type::max().
+  _re_pattern_algorithm_header.append(
+      (re.compile(r'[^>.]\b' + _template + r'(<.*?>)?\([^\)]'),
+       _template,
+       '<algorithm>'))
+
+_re_pattern_templates = []
+for _header, _templates in _HEADERS_CONTAINING_TEMPLATES:
+  for _template in _templates:
+    _re_pattern_templates.append(
+        (re.compile(r'(\<|\b)' + _template + r'\s*\<'),
+         _template + '<>',
+         _header))
+
+
+def FilesBelongToSameModule(filename_cc, filename_h):
+  """Check if these two filenames belong to the same module.
+
+  The concept of a 'module' here is a as follows:
+  foo.h, foo-inl.h, foo.cc, foo_test.cc and foo_unittest.cc belong to the
+  same 'module' if they are in the same directory.
+  some/path/public/xyzzy and some/path/internal/xyzzy are also considered
+  to belong to the same module here.
+
+  If the filename_cc contains a longer path than the filename_h, for example,
+  '/absolute/path/to/base/sysinfo.cc', and this file would include
+  'base/sysinfo.h', this function also produces the prefix needed to open the
+  header. This is used by the caller of this function to more robustly open the
+  header file. We don't have access to the real include paths in this context,
+  so we need this guesswork here.
+
+  Known bugs: tools/base/bar.cc and base/bar.h belong to the same module
+  according to this implementation. Because of this, this function gives
+  some false positives. This should be sufficiently rare in practice.
+
+  Args:
+    filename_cc: is the path for the .cc file
+    filename_h: is the path for the header path
+
+  Returns:
+    Tuple with a bool and a string:
+    bool: True if filename_cc and filename_h belong to the same module.
+    string: the additional prefix needed to open the header file.
+  """
+
+  if not filename_cc.endswith('.cc'):
+    return (False, '')
+  filename_cc = filename_cc[:-len('.cc')]
+  if filename_cc.endswith('_unittest'):
+    filename_cc = filename_cc[:-len('_unittest')]
+  elif filename_cc.endswith('_test'):
+    filename_cc = filename_cc[:-len('_test')]
+  filename_cc = filename_cc.replace('/public/', '/')
+  filename_cc = filename_cc.replace('/internal/', '/')
+
+  if not filename_h.endswith('.h'):
+    return (False, '')
+  filename_h = filename_h[:-len('.h')]
+  if filename_h.endswith('-inl'):
+    filename_h = filename_h[:-len('-inl')]
+  filename_h = filename_h.replace('/public/', '/')
+  filename_h = filename_h.replace('/internal/', '/')
+
+  files_belong_to_same_module = filename_cc.endswith(filename_h)
+  common_path = ''
+  if files_belong_to_same_module:
+    common_path = filename_cc[:-len(filename_h)]
+  return files_belong_to_same_module, common_path
+
+
+def UpdateIncludeState(filename, include_dict, io=codecs):
+  """Fill up the include_dict with new includes found from the file.
+
+  Args:
+    filename: the name of the header to read.
+    include_dict: a dictionary in which the headers are inserted.
+    io: The io factory to use to read the file. Provided for testability.
+
+  Returns:
+    True if a header was successfully added. False otherwise.
+  """
+  headerfile = None
+  try:
+    headerfile = io.open(filename, 'r', 'utf8', 'replace')
+  except IOError:
+    return False
+  linenum = 0
+  for line in headerfile:
+    linenum += 1
+    clean_line = CleanseComments(line)
+    match = _RE_PATTERN_INCLUDE.search(clean_line)
+    if match:
+      include = match.group(2)
+      include_dict.setdefault(include, linenum)
+  return True
+
+
+def CheckForIncludeWhatYouUse(filename, clean_lines, include_state, error,
+                              io=codecs):
+  """Reports for missing stl includes.
+
+  This function will output warnings to make sure you are including the headers
+  necessary for the stl containers and functions that you use. We only give one
+  reason to include a header. For example, if you use both equal_to<> and
+  less<> in a .h file, only one (the latter in the file) of these will be
+  reported as a reason to include the <functional>.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    include_state: An _IncludeState instance.
+    error: The function to call with any errors found.
+    io: The IO factory to use to read the header file. Provided for unittest
+        injection.
+  """
+  required = {}  # A map of header name to linenumber and the template entity.
+                 # Example of required: { '<functional>': (1219, 'less<>') }
+
+  for linenum in xrange(clean_lines.NumLines()):
+    line = clean_lines.elided[linenum]
+    if not line or line[0] == '#':
+      continue
+
+    # String is special -- it is a non-templatized type in STL.
+    matched = _RE_PATTERN_STRING.search(line)
+    if matched:
+      # Don't warn about strings in non-STL namespaces:
+      # (We check only the first match per line; good enough.)
+      prefix = line[:matched.start()]
+      if prefix.endswith('std::') or not prefix.endswith('::'):
+        required['<string>'] = (linenum, 'string')
+
+    for pattern, template, header in _re_pattern_algorithm_header:
+      if pattern.search(line):
+        required[header] = (linenum, template)
+
+    # The following function is just a speed up, no semantics are changed.
+    if not '<' in line:  # Reduces the cpu time usage by skipping lines.
+      continue
+
+    for pattern, template, header in _re_pattern_templates:
+      if pattern.search(line):
+        required[header] = (linenum, template)
+
+  # The policy is that if you #include something in foo.h you don't need to
+  # include it again in foo.cc. Here, we will look at possible includes.
+  # Let's flatten the include_state include_list and copy it into a dictionary.
+  include_dict = dict([item for sublist in include_state.include_list
+                       for item in sublist])
+
+  # Did we find the header for this file (if any) and successfully load it?
+  header_found = False
+
+  # Use the absolute path so that matching works properly.
+  abs_filename = FileInfo(filename).FullName()
+
+  # For Emacs's flymake.
+  # If cpplint is invoked from Emacs's flymake, a temporary file is generated
+  # by flymake and that file name might end with '_flymake.cc'. In that case,
+  # restore original file name here so that the corresponding header file can be
+  # found.
+  # e.g. If the file name is 'foo_flymake.cc', we should search for 'foo.h'
+  # instead of 'foo_flymake.h'
+  abs_filename = re.sub(r'_flymake\.cc$', '.cc', abs_filename)
+
+  # include_dict is modified during iteration, so we iterate over a copy of
+  # the keys.
+  header_keys = include_dict.keys()
+  for header in header_keys:
+    (same_module, common_path) = FilesBelongToSameModule(abs_filename, header)
+    fullpath = common_path + header
+    if same_module and UpdateIncludeState(fullpath, include_dict, io):
+      header_found = True
+
+  # If we can't find the header file for a .cc, assume it's because we don't
+  # know where to look. In that case we'll give up as we're not sure they
+  # didn't include it in the .h file.
+  # TODO(unknown): Do a better job of finding .h files so we are confident that
+  # not having the .h file means there isn't one.
+  if filename.endswith('.cc') and not header_found:
+    return
+
+  # All the lines have been processed, report the errors found.
+  for required_header_unstripped in required:
+    template = required[required_header_unstripped][1]
+    if required_header_unstripped.strip('<>"') not in include_dict:
+      error(filename, required[required_header_unstripped][0],
+            'build/include_what_you_use', 4,
+            'Add #include ' + required_header_unstripped + ' for ' + template)
+
+
+_RE_PATTERN_EXPLICIT_MAKEPAIR = re.compile(r'\bmake_pair\s*<')
+
+
+def CheckMakePairUsesDeduction(filename, clean_lines, linenum, error):
+  """Check that make_pair's template arguments are deduced.
+
+  G++ 4.6 in C++11 mode fails badly if make_pair's template arguments are
+  specified explicitly, and such use isn't intended in any case.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+  match = _RE_PATTERN_EXPLICIT_MAKEPAIR.search(line)
+  if match:
+    error(filename, linenum, 'build/explicit_make_pair',
+          4,  # 4 = high confidence
+          'For C++11-compatibility, omit template arguments from make_pair'
+          ' OR use pair directly OR if appropriate, construct a pair directly')
+
+
+def CheckDefaultLambdaCaptures(filename, clean_lines, linenum, error):
+  """Check that default lambda captures are not used.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # A lambda introducer specifies a default capture if it starts with "[="
+  # or if it starts with "[&" _not_ followed by an identifier.
+  match = Match(r'^(.*)\[\s*(?:=|&[^\w])', line)
+  if match:
+    # Found a potential error, check what comes after the lambda-introducer.
+    # If it's not open parenthesis (for lambda-declarator) or open brace
+    # (for compound-statement), it's not a lambda.
+    line, _, pos = CloseExpression(clean_lines, linenum, len(match.group(1)))
+    if pos >= 0 and Match(r'^\s*[{(]', line[pos:]):
+      error(filename, linenum, 'build/c++11',
+            4,  # 4 = high confidence
+            'Default lambda captures are an unapproved C++ feature.')
+
+
+def CheckRedundantVirtual(filename, clean_lines, linenum, error):
+  """Check if line contains a redundant "virtual" function-specifier.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  # Look for "virtual" on current line.
+  line = clean_lines.elided[linenum]
+  virtual = Match(r'^(.*)(\bvirtual\b)(.*)$', line)
+  if not virtual: return
+
+  # Ignore "virtual" keywords that are near access-specifiers.  These
+  # are only used in class base-specifier and do not apply to member
+  # functions.
+  if (Search(r'\b(public|protected|private)\s+$', virtual.group(1)) or
+      Match(r'^\s+(public|protected|private)\b', virtual.group(3))):
+    return
+
+  # Ignore the "virtual" keyword from virtual base classes.  Usually
+  # there is a column on the same line in these cases (virtual base
+  # classes are rare in google3 because multiple inheritance is rare).
+  if Match(r'^.*[^:]:[^:].*$', line): return
+
+  # Look for the next opening parenthesis.  This is the start of the
+  # parameter list (possibly on the next line shortly after virtual).
+  # TODO(unknown): doesn't work if there are virtual functions with
+  # decltype() or other things that use parentheses, but csearch suggests
+  # that this is rare.
+  end_col = -1
+  end_line = -1
+  start_col = len(virtual.group(2))
+  for start_line in xrange(linenum, min(linenum + 3, clean_lines.NumLines())):
+    line = clean_lines.elided[start_line][start_col:]
+    parameter_list = Match(r'^([^(]*)\(', line)
+    if parameter_list:
+      # Match parentheses to find the end of the parameter list
+      (_, end_line, end_col) = CloseExpression(
+          clean_lines, start_line, start_col + len(parameter_list.group(1)))
+      break
+    start_col = 0
+
+  if end_col < 0:
+    return  # Couldn't find end of parameter list, give up
+
+  # Look for "override" or "final" after the parameter list
+  # (possibly on the next few lines).
+  for i in xrange(end_line, min(end_line + 3, clean_lines.NumLines())):
+    line = clean_lines.elided[i][end_col:]
+    match = Search(r'\b(override|final)\b', line)
+    if match:
+      error(filename, linenum, 'readability/inheritance', 4,
+            ('"virtual" is redundant since function is '
+             'already declared as "%s"' % match.group(1)))
+
+    # Set end_col to check whole lines after we are done with the
+    # first line.
+    end_col = 0
+    if Search(r'[^\w]\s*$', line):
+      break
+
+
+def CheckRedundantOverrideOrFinal(filename, clean_lines, linenum, error):
+  """Check if line contains a redundant "override" or "final" virt-specifier.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  # Look for closing parenthesis nearby.  We need one to confirm where
+  # the declarator ends and where the virt-specifier starts to avoid
+  # false positives.
+  line = clean_lines.elided[linenum]
+  declarator_end = line.rfind(')')
+  if declarator_end >= 0:
+    fragment = line[declarator_end:]
+  else:
+    if linenum > 1 and clean_lines.elided[linenum - 1].rfind(')') >= 0:
+      fragment = line
+    else:
+      return
+
+  # Check that at most one of "override" or "final" is present, not both
+  if Search(r'\boverride\b', fragment) and Search(r'\bfinal\b', fragment):
+    error(filename, linenum, 'readability/inheritance', 4,
+          ('"override" is redundant since function is '
+           'already declared as "final"'))
+
+
+
+
+# Returns true if we are at a new block, and it is directly
+# inside of a namespace.
+def IsBlockInNameSpace(nesting_state, is_forward_declaration):
+  """Checks that the new block is directly in a namespace.
+
+  Args:
+    nesting_state: The _NestingState object that contains info about our state.
+    is_forward_declaration: If the class is a forward declared class.
+  Returns:
+    Whether or not the new block is directly in a namespace.
+  """
+  if is_forward_declaration:
+    if len(nesting_state.stack) >= 1 and (
+        isinstance(nesting_state.stack[-1], _NamespaceInfo)):
+      return True
+    else:
+      return False
+
+  return (len(nesting_state.stack) > 1 and
+          nesting_state.stack[-1].check_namespace_indentation and
+          isinstance(nesting_state.stack[-2], _NamespaceInfo))
+
+
+def ShouldCheckNamespaceIndentation(nesting_state, is_namespace_indent_item,
+                                    raw_lines_no_comments, linenum):
+  """This method determines if we should apply our namespace indentation check.
+
+  Args:
+    nesting_state: The current nesting state.
+    is_namespace_indent_item: If we just put a new class on the stack, True.
+      If the top of the stack is not a class, or we did not recently
+      add the class, False.
+    raw_lines_no_comments: The lines without the comments.
+    linenum: The current line number we are processing.
+
+  Returns:
+    True if we should apply our namespace indentation check. Currently, it
+    only works for classes and namespaces inside of a namespace.
+  """
+
+  is_forward_declaration = IsForwardClassDeclaration(raw_lines_no_comments,
+                                                     linenum)
+
+  if not (is_namespace_indent_item or is_forward_declaration):
+    return False
+
+  # If we are in a macro, we do not want to check the namespace indentation.
+  if IsMacroDefinition(raw_lines_no_comments, linenum):
+    return False
+
+  return IsBlockInNameSpace(nesting_state, is_forward_declaration)
+
+
+# Call this method if the line is directly inside of a namespace.
+# If the line above is blank (excluding comments) or the start of
+# an inner namespace, it cannot be indented.
+def CheckItemIndentationInNamespace(filename, raw_lines_no_comments, linenum,
+                                    error):
+  line = raw_lines_no_comments[linenum]
+  if Match(r'^\s+', line):
+    error(filename, linenum, 'runtime/indentation_namespace', 4,
+          'Do not indent within a namespace')
+
+
+def ProcessLine(filename, file_extension, clean_lines, line,
+                include_state, function_state, nesting_state, error,
+                extra_check_functions=[]):
+  """Processes a single line in the file.
+
+  Args:
+    filename: Filename of the file that is being processed.
+    file_extension: The extension (dot not included) of the file.
+    clean_lines: An array of strings, each representing a line of the file,
+                 with comments stripped.
+    line: Number of line being processed.
+    include_state: An _IncludeState instance in which the headers are inserted.
+    function_state: A _FunctionState instance which counts function lines, etc.
+    nesting_state: A NestingState instance which maintains information about
+                   the current stack of nested blocks being parsed.
+    error: A callable to which errors are reported, which takes 4 arguments:
+           filename, line number, error level, and message
+    extra_check_functions: An array of additional check functions that will be
+                           run on each source line. Each function takes 4
+                           arguments: filename, clean_lines, line, error
+  """
+  raw_lines = clean_lines.raw_lines
+  ParseNolintSuppressions(filename, raw_lines[line], line, error)
+  nesting_state.Update(filename, clean_lines, line, error)
+  CheckForNamespaceIndentation(filename, nesting_state, clean_lines, line,
+                               error)
+  if nesting_state.InAsmBlock(): return
+  CheckForFunctionLengths(filename, clean_lines, line, function_state, error)
+  CheckForMultilineCommentsAndStrings(filename, clean_lines, line, error)
+  CheckStyle(filename, clean_lines, line, file_extension, nesting_state, error)
+  CheckLanguage(filename, clean_lines, line, file_extension, include_state,
+                nesting_state, error)
+  CheckForNonConstReference(filename, clean_lines, line, nesting_state, error)
+  CheckForNonStandardConstructs(filename, clean_lines, line,
+                                nesting_state, error)
+  CheckVlogArguments(filename, clean_lines, line, error)
+  CheckPosixThreading(filename, clean_lines, line, error)
+  CheckInvalidIncrement(filename, clean_lines, line, error)
+  CheckMakePairUsesDeduction(filename, clean_lines, line, error)
+  CheckDefaultLambdaCaptures(filename, clean_lines, line, error)
+  CheckRedundantVirtual(filename, clean_lines, line, error)
+  CheckRedundantOverrideOrFinal(filename, clean_lines, line, error)
+  for check_fn in extra_check_functions:
+    check_fn(filename, clean_lines, line, error)
+
+def FlagCxx11Features(filename, clean_lines, linenum, error):
+  """Flag those c++11 features that we only allow in certain places.
+
+  Args:
+    filename: The name of the current file.
+    clean_lines: A CleansedLines instance containing the file.
+    linenum: The number of the line to check.
+    error: The function to call with any errors found.
+  """
+  line = clean_lines.elided[linenum]
+
+  # Flag unapproved C++11 headers.
+  include = Match(r'\s*#\s*include\s+[<"]([^<"]+)[">]', line)
+  if include and include.group(1) in ('cfenv',
+                                      'condition_variable',
+                                      'fenv.h',
+                                      'future',
+                                      'mutex',
+                                      'thread',
+                                      'chrono',
+                                      'ratio',
+                                      'regex',
+                                      'system_error',
+                                     ):
+    error(filename, linenum, 'build/c++11', 5,
+          ('<%s> is an unapproved C++11 header.') % include.group(1))
+
+  # The only place where we need to worry about C++11 keywords and library
+  # features in preprocessor directives is in macro definitions.
+  if Match(r'\s*#', line) and not Match(r'\s*#\s*define\b', line): return
+
+  # These are classes and free functions.  The classes are always
+  # mentioned as std::*, but we only catch the free functions if
+  # they're not found by ADL.  They're alphabetical by header.
+  for top_name in (
+      # type_traits
+      'alignment_of',
+      'aligned_union',
+      ):
+    if Search(r'\bstd::%s\b' % top_name, line):
+      error(filename, linenum, 'build/c++11', 5,
+            ('std::%s is an unapproved C++11 class or function.  Send c-style '
+             'an example of where it would make your code more readable, and '
+             'they may let you use it.') % top_name)
+
+
+def ProcessFileData(filename, file_extension, lines, error,
+                    extra_check_functions=[]):
+  """Performs lint checks and reports any errors to the given error function.
+
+  Args:
+    filename: Filename of the file that is being processed.
+    file_extension: The extension (dot not included) of the file.
+    lines: An array of strings, each representing a line of the file, with the
+           last element being empty if the file is terminated with a newline.
+    error: A callable to which errors are reported, which takes 4 arguments:
+           filename, line number, error level, and message
+    extra_check_functions: An array of additional check functions that will be
+                           run on each source line. Each function takes 4
+                           arguments: filename, clean_lines, line, error
+  """
+  lines = (['// marker so line numbers and indices both start at 1'] + lines +
+           ['// marker so line numbers end in a known way'])
+
+  include_state = _IncludeState()
+  function_state = _FunctionState()
+  nesting_state = NestingState()
+
+  ResetNolintSuppressions()
+
+  CheckForCopyright(filename, lines, error)
+
+  RemoveMultiLineComments(filename, lines, error)
+  clean_lines = CleansedLines(lines)
+
+  if file_extension == 'h':
+    CheckForHeaderGuard(filename, clean_lines, error)
+
+  for line in xrange(clean_lines.NumLines()):
+    ProcessLine(filename, file_extension, clean_lines, line,
+                include_state, function_state, nesting_state, error,
+                extra_check_functions)
+    FlagCxx11Features(filename, clean_lines, line, error)
+  nesting_state.CheckCompletedBlocks(filename, error)
+
+  CheckForIncludeWhatYouUse(filename, clean_lines, include_state, error)
+  
+  # Check that the .cc file has included its header if it exists.
+  if file_extension == 'cc':
+    CheckHeaderFileIncluded(filename, include_state, error)
+
+  # We check here rather than inside ProcessLine so that we see raw
+  # lines rather than "cleaned" lines.
+  CheckForBadCharacters(filename, lines, error)
+
+  CheckForNewlineAtEOF(filename, lines, error)
+
+def ProcessConfigOverrides(filename):
+  """ Loads the configuration files and processes the config overrides.
+
+  Args:
+    filename: The name of the file being processed by the linter.
+
+  Returns:
+    False if the current |filename| should not be processed further.
+  """
+
+  abs_filename = os.path.abspath(filename)
+  cfg_filters = []
+  keep_looking = True
+  while keep_looking:
+    abs_path, base_name = os.path.split(abs_filename)
+    if not base_name:
+      break  # Reached the root directory.
+
+    cfg_file = os.path.join(abs_path, "CPPLINT.cfg")
+    abs_filename = abs_path
+    if not os.path.isfile(cfg_file):
+      continue
+
+    try:
+      with open(cfg_file) as file_handle:
+        for line in file_handle:
+          line, _, _ = line.partition('#')  # Remove comments.
+          if not line.strip():
+            continue
+
+          name, _, val = line.partition('=')
+          name = name.strip()
+          val = val.strip()
+          if name == 'set noparent':
+            keep_looking = False
+          elif name == 'filter':
+            cfg_filters.append(val)
+          elif name == 'exclude_files':
+            # When matching exclude_files pattern, use the base_name of
+            # the current file name or the directory name we are processing.
+            # For example, if we are checking for lint errors in /foo/bar/baz.cc
+            # and we found the .cfg file at /foo/CPPLINT.cfg, then the config
+            # file's "exclude_files" filter is meant to be checked against "bar"
+            # and not "baz" nor "bar/baz.cc".
+            if base_name:
+              pattern = re.compile(val)
+              if pattern.match(base_name):
+                sys.stderr.write('Ignoring "%s": file excluded by "%s". '
+                                 'File path component "%s" matches '
+                                 'pattern "%s"\n' %
+                                 (filename, cfg_file, base_name, val))
+                return False
+          elif name == 'linelength':
+            global _line_length
+            try:
+                _line_length = int(val)
+            except ValueError:
+                sys.stderr.write('Line length must be numeric.')
+          else:
+            sys.stderr.write(
+                'Invalid configuration option (%s) in file %s\n' %
+                (name, cfg_file))
+
+    except IOError:
+      sys.stderr.write(
+          "Skipping config file '%s': Can't open for reading\n" % cfg_file)
+      keep_looking = False
+
+  # Apply all the accumulated filters in reverse order (top-level directory
+  # config options having the least priority).
+  for filter in reversed(cfg_filters):
+     _AddFilters(filter)
+
+  return True
+
+
+def ProcessFile(filename, vlevel, extra_check_functions=[]):
+  """Does google-lint on a single file.
+
+  Args:
+    filename: The name of the file to parse.
+
+    vlevel: The level of errors to report.  Every error of confidence
+    >= verbose_level will be reported.  0 is a good default.
+
+    extra_check_functions: An array of additional check functions that will be
+                           run on each source line. Each function takes 4
+                           arguments: filename, clean_lines, line, error
+  """
+
+  _SetVerboseLevel(vlevel)
+  _BackupFilters()
+
+  if not ProcessConfigOverrides(filename):
+    _RestoreFilters()
+    return
+
+  lf_lines = []
+  crlf_lines = []
+  try:
+    # Support the UNIX convention of using "-" for stdin.  Note that
+    # we are not opening the file with universal newline support
+    # (which codecs doesn't support anyway), so the resulting lines do
+    # contain trailing '\r' characters if we are reading a file that
+    # has CRLF endings.
+    # If after the split a trailing '\r' is present, it is removed
+    # below.
+    if filename == '-':
+      lines = codecs.StreamReaderWriter(sys.stdin,
+                                        codecs.getreader('utf8'),
+                                        codecs.getwriter('utf8'),
+                                        'replace').read().split('\n')
+    else:
+      lines = codecs.open(filename, 'r', 'utf8', 'replace').read().split('\n')
+
+    # Remove trailing '\r'.
+    # The -1 accounts for the extra trailing blank line we get from split()
+    for linenum in range(len(lines) - 1):
+      if lines[linenum].endswith('\r'):
+        lines[linenum] = lines[linenum].rstrip('\r')
+        crlf_lines.append(linenum + 1)
+      else:
+        lf_lines.append(linenum + 1)
+
+  except IOError:
+    sys.stderr.write(
+        "Skipping input '%s': Can't open for reading\n" % filename)
+    _RestoreFilters()
+    return
+
+  # Note, if no dot is found, this will give the entire filename as the ext.
+  file_extension = filename[filename.rfind('.') + 1:]
+
+  # When reading from stdin, the extension is unknown, so no cpplint tests
+  # should rely on the extension.
+  if filename != '-' and file_extension not in _valid_extensions:
+    sys.stderr.write('Ignoring %s; not a valid file name '
+                     '(%s)\n' % (filename, ', '.join(_valid_extensions)))
+  else:
+    ProcessFileData(filename, file_extension, lines, Error,
+                    extra_check_functions)
+
+    # If end-of-line sequences are a mix of LF and CR-LF, issue
+    # warnings on the lines with CR.
+    #
+    # Don't issue any warnings if all lines are uniformly LF or CR-LF,
+    # since critique can handle these just fine, and the style guide
+    # doesn't dictate a particular end of line sequence.
+    #
+    # We can't depend on os.linesep to determine what the desired
+    # end-of-line sequence should be, since that will return the
+    # server-side end-of-line sequence.
+    if lf_lines and crlf_lines:
+      # Warn on every line with CR.  An alternative approach might be to
+      # check whether the file is mostly CRLF or just LF, and warn on the
+      # minority, we bias toward LF here since most tools prefer LF.
+      for linenum in crlf_lines:
+        Error(filename, linenum, 'whitespace/newline', 1,
+              'Unexpected \\r (^M) found; better to use only \\n')
+
+  sys.stderr.write('Done processing %s\n' % filename)
+  _RestoreFilters()
+
+
+def PrintUsage(message):
+  """Prints a brief usage string and exits, optionally with an error message.
+
+  Args:
+    message: The optional error message.
+  """
+  sys.stderr.write(_USAGE)
+  if message:
+    sys.exit('\nFATAL ERROR: ' + message)
+  else:
+    sys.exit(1)
+
+
+def PrintCategories():
+  """Prints a list of all the error-categories used by error messages.
+
+  These are the categories used to filter messages via --filter.
+  """
+  sys.stderr.write(''.join('  %s\n' % cat for cat in _ERROR_CATEGORIES))
+  sys.exit(0)
+
+
+def ParseArguments(args):
+  """Parses the command line arguments.
+
+  This may set the output format and verbosity level as side-effects.
+
+  Args:
+    args: The command line arguments:
+
+  Returns:
+    The list of filenames to lint.
+  """
+  try:
+    (opts, filenames) = getopt.getopt(args, '', ['help', 'output=', 'verbose=',
+                                                 'counting=',
+                                                 'filter=',
+                                                 'root=',
+                                                 'linelength=',
+                                                 'extensions='])
+  except getopt.GetoptError:
+    PrintUsage('Invalid arguments.')
+
+  verbosity = _VerboseLevel()
+  output_format = _OutputFormat()
+  filters = ''
+  counting_style = ''
+
+  for (opt, val) in opts:
+    if opt == '--help':
+      PrintUsage(None)
+    elif opt == '--output':
+      if val not in ('emacs', 'vs7', 'eclipse'):
+        PrintUsage('The only allowed output formats are emacs, vs7 and eclipse.')
+      output_format = val
+    elif opt == '--verbose':
+      verbosity = int(val)
+    elif opt == '--filter':
+      filters = val
+      if not filters:
+        PrintCategories()
+    elif opt == '--counting':
+      if val not in ('total', 'toplevel', 'detailed'):
+        PrintUsage('Valid counting options are total, toplevel, and detailed')
+      counting_style = val
+    elif opt == '--root':
+      global _root
+      _root = val
+    elif opt == '--linelength':
+      global _line_length
+      try:
+          _line_length = int(val)
+      except ValueError:
+          PrintUsage('Line length must be digits.')
+    elif opt == '--extensions':
+      global _valid_extensions
+      try:
+          _valid_extensions = set(val.split(','))
+      except ValueError:
+          PrintUsage('Extensions must be comma seperated list.')
+
+  if not filenames:
+    PrintUsage('No files were specified.')
+
+  _SetOutputFormat(output_format)
+  _SetVerboseLevel(verbosity)
+  _SetFilters(filters)
+  _SetCountingStyle(counting_style)
+
+  return filenames
+
+
+def main():
+  filenames = ParseArguments(sys.argv[1:])
+
+  # Change stderr to write with replacement characters so we don't die
+  # if we try to print something containing non-ASCII characters.
+  sys.stderr = codecs.StreamReaderWriter(sys.stderr,
+                                         codecs.getreader('utf8'),
+                                         codecs.getwriter('utf8'),
+                                         'replace')
+
+  _cpplint_state.ResetErrorCounts()
+  for filename in filenames:
+    ProcessFile(filename, _cpplint_state.verbose_level)
+  _cpplint_state.PrintErrorCounts()
+
+  sys.exit(_cpplint_state.error_count > 0)
+
+
+if __name__ == '__main__':
+  main()
diff --git a/tools/data/getdata.sh b/tools/data/getdata.sh
new file mode 100644
index 0000000..0dd00e9
--- /dev/null
+++ b/tools/data/getdata.sh
@@ -0,0 +1,14 @@
+BBOX="-122.8,45.4,-122.5,45.6"
+wget --progress=dot:mega -O "sampledata.osm" "http://www.overpass-api.de/api/xapi?*[bbox=${BBOX}][@meta]"
+BBOX="-122.65,45.5, -122.5,45.6"
+wget --progress=dot:mega -O "sampledataNE.osm" "http://www.overpass-api.de/api/xapi?*[bbox=${BBOX}][@meta]"
+BBOX="-122.65,45.4, -122.5,45.5"
+wget --progress=dot:mega -O "sampledataSE.osm" "http://www.overpass-api.de/api/xapi?*[bbox=${BBOX}][@meta]"
+BBOX="-122.8,45.5, -122.65,45.6"
+wget --progress=dot:mega -O "sampledataNW.osm" "http://www.overpass-api.de/api/xapi?*[bbox=${BBOX}][@meta]"
+BBOX="-122.8,45.4, -122.65,45.5"
+wget --progress=dot:mega -O "sampledataSW.osm" "http://www.overpass-api.de/api/xapi?*[bbox=${BBOX}][@meta]"
+
+BBOX="-122.65,45.4, -122.6,45.45"
+wget --progress=dot:mega -O "small.osm" "http://www.overpass-api.de/api/xapi?*[bbox=${BBOX}][@meta]"
+
diff --git a/tools/doxygen/Doxyfile b/tools/doxygen/Doxyfile
new file mode 100644
index 0000000..ec9050e
--- /dev/null
+++ b/tools/doxygen/Doxyfile
@@ -0,0 +1,2312 @@
+# Doxyfile 1.8.7
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the config file
+# that follow. The default is UTF-8 which is also the encoding used for all text
+# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
+# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
+# for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = "osm2pgrouting"
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         = 2.1
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          = "osm2pgrouting provides the tools to import to a SQL geospatial database the routabla data from osm."
+
+# With the PROJECT_LOGO tag one can specify an logo or icon that is included in
+# the documentation. The maximum height of the logo should not exceed 55 pixels
+# and the maximum width should not exceed 200 pixels. Doxygen will copy the logo
+# to the output directory.
+
+PROJECT_LOGO           = "../../doc/static/images/pgrouting-logo.png"
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       = ../../build/doxy/
+
+# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII
+# characters to appear in the names of generated files. If set to NO, non-ASCII
+# characters will be escaped, for example _xE3_x81_x84 will be used for Unicode
+# U+3044.
+# The default value is: NO.
+
+ALLOW_UNICODE_NAMES    = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# If the BRIEF_MEMBER_DESC tag is set to YES doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       =
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = NO
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = NO
+
+# If the FULL_PATH_NAMES tag is set to YES doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = YES
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES, then doxygen will produce a
+# new page for each member. If set to NO, the documentation of a member will be
+# part of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines.
+
+ALIASES                =
+
+# This tag can be used to specify a number of word-keyword mappings (TCL only).
+# A mapping has the form "name=value". For example adding "class=itcl::class"
+# will allow you to use the command class in the itcl::class meaning.
+
+TCL_SUBST              =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = NO
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, Javascript,
+# C#, C, C++, D, PHP, Objective-C, Python, Fortran (fixed format Fortran:
+# FortranFixed, free formatted Fortran: FortranFree, unknown formatted Fortran:
+# Fortran. In the later case the parser tries to guess whether the code is fixed
+# or free formatted code, this is the default for Fortran type files), VHDL. For
+# instance to make doxygen treat .inc files as Fortran files (default is PHP),
+# and .f files as C (default is Fortran), use: inc=Fortran f=C.
+#
+# Note For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by by putting a % sign in front of the word
+# or globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = NO
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES, then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = NO
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = YES
+
+# If the EXTRACT_PACKAGE tag is set to YES all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = NO
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. When set to YES local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO these classes will be included in the various overviews. This option has
+# no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# (class|struct|union) declarations. If set to NO these declarations will be
+# included in the documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# and Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = YES
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = YES
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = YES
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable ( YES) or disable ( NO) the
+# todo list. This list is created by putting \todo commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable ( YES) or disable ( NO) the
+# test list. This list is created by putting \test commands in the
+# documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable ( YES) or disable ( NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable ( YES) or disable ( NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES the list
+# will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. Do not use file names with spaces, bibtex cannot handle them. See
+# also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error ( stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES, then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO doxygen will only warn about wrong or incomplete parameter
+# documentation, but not about the absence of documentation.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces.
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = ../..
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank the
+# following patterns are tested:*.c, *.cc, *.cxx, *.cpp, *.c++, *.java, *.ii,
+# *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h, *.hh, *.hxx, *.hpp,
+# *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc, *.m, *.markdown,
+# *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf,
+# *.qsf, *.as and *.js.
+
+FILE_PATTERNS          =
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = YES
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                = ../../tools ../../doc ../../build ../../cmake ../../.tx 
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       = */notUsed/*
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       =
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             = ../../doc/static/images/developers/
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER ) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE = ../README.md
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = YES
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# function all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = YES
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = YES
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES, then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see http://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify an additional user-
+# defined cascading style sheet that is included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefor more robust against future updates.
+# Doxygen will copy the style sheet file to the output directory. For an example
+# see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the stylesheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: http://developer.apple.com/tools/xcode/), introduced with
+# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
+# for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler ( hhc.exe). If non-empty
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated (
+# YES) or that it should be included in the master .chm file ( NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index ( hhk), content ( hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated (
+# YES) or a normal table of contents ( NO) in the .chm file. Furthermore it
+# enables the Previous and Next buttons.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom stylesheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# When the EXT_LINKS_IN_WINDOW option is set to YES doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# http://www.mathjax.org) which uses client side Javascript for the rendering
+# instead of using prerendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from http://www.mathjax.org before deployment.
+# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using Javascript. There
+# are two flavors of web server based searching depending on the EXTERNAL_SEARCH
+# setting. When disabled, doxygen will generate a PHP script for searching and
+# an index file used by the script. When EXTERNAL_SEARCH is enabled the indexing
+# and searching needs to be provided by external tools. See the section
+# "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer ( doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = YES
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when enabling USE_PDFLATEX this option is only used for generating
+# bitmaps for formulas in the HTML output, but not in the Makefile that is
+# written to the output directory.
+# The default file is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         = latex
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# If the COMPACT_LATEX tag is set to YES doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = letter
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. To get the times font for
+# instance you can specify
+# EXTRA_PACKAGES=times
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber. Doxygen will
+# replace them by respectively the title of the page, the current date and time,
+# only the current date, the version number of doxygen, the project name (see
+# PROJECT_NAME), or the project number (see PROJECT_NUMBER).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the LATEX_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's config
+# file, i.e. a series of assignments. You only have to provide replacements,
+# missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's config file. A template extensions file can be generated
+# using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# The MAN_SUBDIR tag determines the name of the directory created within
+# MAN_OUTPUT in which the man pages are placed. If defaults to man followed by
+# MAN_EXTENSION with the initial . removed.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_SUBDIR             =
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# If the XML_PROGRAMLISTING tag is set to YES doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES doxygen will generate an AutoGen
+# Definitions (see http://autogen.sf.net) file that captures the structure of
+# the code including all documentation. Note that this feature is still
+# experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES doxygen will expand all macro names
+# in the source code. If set to NO only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = YES
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES the includes files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             = VICKY
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all references to function-like macros that are alone on a line, have
+# an all uppercase name, and do not end with a semicolon. Such function macros
+# are typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have a unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES all external class will be listed in the
+# class index. If set to NO only the inherited external classes will be listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES all external groups will be listed in
+# the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+# The PERL_PATH should be the absolute path and name of the perl script
+# interpreter (i.e. the result of 'which perl').
+# The default file (with absolute path) is: /usr/bin/perl.
+
+PERL_PATH              = /usr/bin/perl
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can define message sequence charts within doxygen comments using the \msc
+# command. Doxygen will then run the mscgen tool (see:
+# http://www.mcternan.me.uk/mscgen/)) to produce the chart and insert it in the
+# documentation. The MSCGEN_PATH tag allows you to specify the directory where
+# the mscgen tool resides. If left empty the tool is assumed to be found in the
+# default search path.
+
+MSCGEN_PATH            =
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES, the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: YES.
+
+HAVE_DOT               = YES
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font n the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot.
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, png:cairo, png:cairo:cairo, png:cairo:gd, png:gd,
+# png:gd:gd, jpg, jpg:cairo, jpg:cairo:gd, jpg:gd, jpg:gd:gd, gif, gif:cairo,
+# gif:cairo:gd, gif:gd, gif:gd:gd and svg.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           = ../doc/images/
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = NO
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/tools/doxygen/DoxygenLayout.xml b/tools/doxygen/DoxygenLayout.xml
new file mode 100644
index 0000000..b7c9586
--- /dev/null
+++ b/tools/doxygen/DoxygenLayout.xml
@@ -0,0 +1,194 @@
+<doxygenlayout version="1.0">
+  <!-- Generated by doxygen 1.8.7 -->
+  <!-- Navigation index tabs for HTML output -->
+  <navindex>
+    <tab type="mainpage" visible="yes" title=""/>
+    <tab type="pages" visible="yes" title="" intro=""/>
+    <tab type="modules" visible="yes" title="" intro=""/>
+    <tab type="namespaces" visible="yes" title="">
+      <tab type="namespacelist" visible="yes" title="" intro=""/>
+      <tab type="namespacemembers" visible="yes" title="" intro=""/>
+    </tab>
+    <tab type="classes" visible="yes" title="">
+      <tab type="classlist" visible="yes" title="" intro=""/>
+      <tab type="classindex" visible="$ALPHABETICAL_INDEX" title=""/> 
+      <tab type="hierarchy" visible="yes" title="" intro=""/>
+      <tab type="classmembers" visible="yes" title="" intro=""/>
+    </tab>
+    <tab type="files" visible="yes" title="">
+      <tab type="filelist" visible="yes" title="" intro=""/>
+      <tab type="globals" visible="yes" title="" intro=""/>
+    </tab>
+    <tab type="examples" visible="yes" title="" intro=""/>  
+  </navindex>
+
+  <!-- Layout definition for a class page -->
+  <class>
+    <briefdescription visible="yes"/>
+    <includes visible="$SHOW_INCLUDE_FILES"/>
+    <inheritancegraph visible="$CLASS_GRAPH"/>
+    <collaborationgraph visible="$COLLABORATION_GRAPH"/>
+    <memberdecl>
+      <nestedclasses visible="yes" title=""/>
+      <publictypes title=""/>
+      <services title=""/>
+      <interfaces title=""/>
+      <publicslots title=""/>
+      <signals title=""/>
+      <publicmethods title=""/>
+      <publicstaticmethods title=""/>
+      <publicattributes title=""/>
+      <publicstaticattributes title=""/>
+      <protectedtypes title=""/>
+      <protectedslots title=""/>
+      <protectedmethods title=""/>
+      <protectedstaticmethods title=""/>
+      <protectedattributes title=""/>
+      <protectedstaticattributes title=""/>
+      <packagetypes title=""/>
+      <packagemethods title=""/>
+      <packagestaticmethods title=""/>
+      <packageattributes title=""/>
+      <packagestaticattributes title=""/>
+      <properties title=""/>
+      <events title=""/>
+      <privatetypes title=""/>
+      <privateslots title=""/>
+      <privatemethods title=""/>
+      <privatestaticmethods title=""/>
+      <privateattributes title=""/>
+      <privatestaticattributes title=""/>
+      <friends title=""/>
+      <related title="" subtitle=""/>
+      <membergroups visible="yes"/>
+    </memberdecl>
+    <detaileddescription title=""/>
+    <memberdef>
+      <inlineclasses title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <services title=""/>
+      <interfaces title=""/>
+      <constructors title=""/>
+      <functions title=""/>
+      <related title=""/>
+      <variables title=""/>
+      <properties title=""/>
+      <events title=""/>
+    </memberdef>
+    <allmemberslink visible="yes"/>
+    <usedfiles visible="$SHOW_USED_FILES"/>
+    <authorsection visible="yes"/>
+  </class>
+
+  <!-- Layout definition for a namespace page -->
+  <namespace>
+    <briefdescription visible="yes"/>
+    <memberdecl>
+      <nestednamespaces visible="yes" title=""/>
+      <constantgroups visible="yes" title=""/>
+      <classes visible="yes" title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <functions title=""/>
+      <variables title=""/>
+      <membergroups visible="yes"/>
+    </memberdecl>
+    <detaileddescription title=""/>
+    <memberdef>
+      <inlineclasses title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <functions title=""/>
+      <variables title=""/>
+    </memberdef>
+    <authorsection visible="yes"/>
+  </namespace>
+
+  <!-- Layout definition for a file page -->
+  <file>
+    <briefdescription visible="yes"/>
+    <includes visible="$SHOW_INCLUDE_FILES"/>
+    <includegraph visible="$INCLUDE_GRAPH"/>
+    <includedbygraph visible="$INCLUDED_BY_GRAPH"/>
+    <sourcelink visible="yes"/>
+    <memberdecl>
+      <classes visible="yes" title=""/>
+      <namespaces visible="yes" title=""/>
+      <constantgroups visible="yes" title=""/>
+      <defines title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <functions title=""/>
+      <variables title=""/>
+      <membergroups visible="yes"/>
+    </memberdecl>
+    <detaileddescription title=""/>
+    <memberdef>
+      <inlineclasses title=""/>
+      <defines title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <functions title=""/>
+      <variables title=""/>
+    </memberdef>
+    <authorsection/>
+  </file>
+
+  <!-- Layout definition for a group page -->
+  <group>
+    <briefdescription visible="yes"/>
+    <groupgraph visible="$GROUP_GRAPHS"/>
+    <memberdecl>
+      <nestedgroups visible="yes" title=""/>
+      <dirs visible="yes" title=""/>
+      <files visible="yes" title=""/>
+      <namespaces visible="yes" title=""/>
+      <classes visible="yes" title=""/>
+      <defines title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <enumvalues title=""/>
+      <functions title=""/>
+      <variables title=""/>
+      <signals title=""/>
+      <publicslots title=""/>
+      <protectedslots title=""/>
+      <privateslots title=""/>
+      <events title=""/>
+      <properties title=""/>
+      <friends title=""/>
+      <membergroups visible="yes"/>
+    </memberdecl>
+    <detaileddescription title=""/>
+    <memberdef>
+      <pagedocs/>
+      <inlineclasses title=""/>
+      <defines title=""/>
+      <typedefs title=""/>
+      <enums title=""/>
+      <enumvalues title=""/>
+      <functions title=""/>
+      <variables title=""/>
+      <signals title=""/>
+      <publicslots title=""/>
+      <protectedslots title=""/>
+      <privateslots title=""/>
+      <events title=""/>
+      <properties title=""/>
+      <friends title=""/>
+    </memberdef>
+    <authorsection visible="yes"/>
+  </group>
+
+  <!-- Layout definition for a directory page -->
+  <directory>
+    <briefdescription visible="yes"/>
+    <directorygraph visible="yes"/>
+    <memberdecl>
+      <dirs visible="yes"/>
+      <files visible="yes"/>
+    </memberdecl>
+    <detaileddescription title=""/>
+  </directory>
+</doxygenlayout>
diff --git a/tools/doxygen/Makefile b/tools/doxygen/Makefile
new file mode 100644
index 0000000..4dc7835
--- /dev/null
+++ b/tools/doxygen/Makefile
@@ -0,0 +1,5 @@
+all:  doxygen
+
+doxygen:
+	mkdir -p ../../build/doxy/
+	doxygen  

-- 
Alioth's /usr/local/bin/git-commit-notice on /srv/git.debian.org/git/pkg-grass/osm2pgrouting.git



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