Bug#1090965: fc-cache.1: Some remarks and a patch with editorial changes for this man page
Bjarni Ingi Gislason
bjarniig at simnet.is
Sat Dec 21 11:08:23 GMT 2024
Package: fontconfig
Version: 2.15.0-1.1+b1
Severity: minor
Tags: patch
* What led up to the situation?
Checking for defects with a new version
test-[g|n]roff -mandoc -t -K utf8 -rF0 -rHY=0 -rCHECKSTYLE=10 -ww -z < "man page"
[Use "groff -e ' $' <file>" to find trailing spaces.]
["test-groff" is a script in the repository for "groff"; is not shipped]
(local copy and "troff" slightly changed by me).
[The fate of "test-nroff" was decided in groff bug #55941.]
* What was the outcome of this action?
an.tmac:<stdin>:2: style: .TH missing fourth argument; consider package/project name and version (e.g., "groff 1.23.0")
an.tmac:<stdin>:2: style: .TH missing fifth argument and second argument '1' not a recognized manual section; specify its title
troff:<stdin>:7: warning: trailing space in the line
* What outcome did you expect instead?
No output (no warnings).
-.-
General remarks and further material, if a diff-file exist, are in the
attachments.
-- System Information:
Debian Release: trixie/sid
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 6.11.10-amd64 (SMP w/2 CPU threads; PREEMPT)
Locale: LANG=is_IS.iso88591, LC_CTYPE=is_IS.iso88591 (charmap=ISO-8859-1), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: sysvinit (via /sbin/init)
Versions of packages fontconfig depends on:
ii fontconfig-config 2.15.0-1.1+b1
ii libc6 2.40-4
ii libfontconfig1 2.15.0-1.1+b1
ii libfreetype6 2.13.3+dfsg-1
fontconfig recommends no packages.
fontconfig suggests no packages.
-- no debconf information
-------------- next part --------------
Input file is fc-cache.1
Any program (person), that produces man pages, should check the output
for defects by using (both groff and nroff)
[gn]roff -mandoc -t -ww -b -z -K utf8 <man page>
The same goes for man pages that are used as an input.
For a style guide use
mandoc -T lint
-.-
So any 'generator' should check its products with the above mentioned
'groff', 'mandoc', and additionally with 'nroff ...'.
This is just a simple quality control measure.
The 'generator' may have to be corrected to get a better man page,
the source file may, and any additional file may.
Common defects:
Input text line longer than 80 bytes.
Not removing trailing spaces (in in- and output).
The reason for these trailing spaces should be found and eliminated.
Not beginning each input sentence on a new line.
Lines should thus be shorter.
See man-pages(7), item 'semantic newline'.
-.-
The difference between the formatted output of the original and patched file
can be seen with:
nroff -mandoc <file1> > <out1>
nroff -mandoc <file2> > <out2>
diff -u <out1> <out2>
and for groff, using
"printf '%s\n%s\n' '.kern 0' '.ss 12 0' | groff -mandoc -Z - "
instead of 'nroff -mandoc'
Add the option '-t', if the file contains a table.
Read the output of 'diff -u' with 'less -R' or similar.
-.-.
If 'man' (man-db) is used to check the manual for warnings,
the following must be set:
The option "-warnings=w"
The environmental variable:
export MAN_KEEP_STDERR=yes (or any non-empty value)
or
(produce only warnings):
export MANROFFOPT="-ww -b -z"
export MAN_KEEP_STDERR=yes (or any non-empty value)
-.-.
Output from "mandoc -T lint fc-cache.1": (shortened list)
1 normalizing date format to
6 skipping paragraph macro
1 whitespace at end of input line
-.-.
Output from "test-groff -mandoc -t -ww -z fc-cache.1": (shortened list)
1 trailing space in the line
-.-.
Remove space characters (whitespace) at the end of lines.
Use "git apply ... --whitespace=fix" to fix extra space issues, or use
global configuration "core.whitespace".
Number of lines affected is
1
-.-.
Change two HYPHEN-MINUSES (code 0x2D) to an em-dash (\(em),
if one is intended.
" \(em " creates a too big gap in the text (in "troff").
An en-dash is usually surrounded by a space,
while an em-dash is used without spaces.
"man" (1 byte characters in input) transforms an en-dash (\(en) to one
HYPHEN-MINUS,
and an em-dash to two HYPHEN-MINUSES without considering the space
around it.
If "--" are two single "-"
(begin of an option or end of options)
then use "\-\-".
fc-cache.1:7:\fBfc-cache\fR [ \fB-EfrsvVh\fR ] [ \fB--error-on-no-fonts\fR ] [ \fB--force\fR ] [ \fB--really-force\fR ] [ \fB [ -y \fIdir\fB ] [ --sysroot \fIdir\fB ] \fR ] [ \fB--system-only\fR ] [ \fB--verbose\fR ] [ \fB--version\fR ] [ \fB--help\fR ] [ \fB\fIdir\fB\fR\fI...\fR ]
-.-
Change -- in x--y to \(em (em-dash), or, if an
option, to \-\-
7:\fBfc-cache\fR [ \fB-EfrsvVh\fR ] [ \fB--error-on-no-fonts\fR ] [ \fB--force\fR ] [ \fB--really-force\fR ] [ \fB [ -y \fIdir\fB ] [ --sysroot \fIdir\fB ] \fR ] [ \fB--system-only\fR ] [ \fB--verbose\fR ] [ \fB--version\fR ] [ \fB--help\fR ] [ \fB\fIdir\fB\fR\fI...\fR ]
-.-.
Change a HYPHEN-MINUS (code 0x2D) to a minus(-dash) (\-),
if it
is in front of a name for an option,
is a symbol for standard input,
is a single character used to indicate an option,
or is in the NAME section (man-pages(7)).
N.B. - (0x2D), processed as a UTF-8 file, is changed to a hyphen
(0x2010, groff \[u2010] or \[hy]) in the output.
7:\fBfc-cache\fR [ \fB-EfrsvVh\fR ] [ \fB--error-on-no-fonts\fR ] [ \fB--force\fR ] [ \fB--really-force\fR ] [ \fB [ -y \fIdir\fB ] [ --sysroot \fIdir\fB ] \fR ] [ \fB--system-only\fR ] [ \fB--verbose\fR ] [ \fB--version\fR ] [ \fB--help\fR ] [ \fB\fIdir\fB\fR\fI...\fR ]
28:with long options starting with two dashes (`-'). A summary of
31:\fB-E\fR
36:\fB-f\fR
40:\fB-r\fR
43:\fB-s\fR
47:\fB-v\fR
50:\fB-y\fR
53:\fB-h\fR
56:\fB-V\fR
-.-.
Wrong distance between sentences in the input file.
Separate the sentences and subordinate clauses; each begins on a new
line. See man-pages(7) ("Conventions for source file layout") and
"info groff" ("Input Conventions").
The best procedure is to always start a new sentence on a new line,
at least, if you are typing on a computer.
Remember coding: Only one command ("sentence") on each (logical) line.
E-mail: Easier to quote exactly the relevant lines.
Generally: Easier to edit the sentence.
Patches: Less unaffected text.
Search for two adjacent words is easier, when they belong to the same line,
and the same phrase.
The amount of space between sentences in the output can then be
controlled with the ".ss" request.
-.-
Mark a abbreviation point as such by suffixing them with "\\&".
16:current font configuration. Each directory is scanned for
17:font files readable by FreeType. A cache is created which
28:with long options starting with two dashes (`-'). A summary of
63:\fBfc-cache\fR returns zero if the caches successfully generated. otherwise non-zero.
68:and contain maps from file names to font properties. They are
-.-.
Split lines longer than 80 characters into two or more lines.
Appropriate break points are the end of a sentence and a subordinate
clause; after punctuation marks.
Line 7, length 280
\fBfc-cache\fR [ \fB-EfrsvVh\fR ] [ \fB--error-on-no-fonts\fR ] [ \fB--force\fR ] [ \fB--really-force\fR ] [ \fB [ -y \fIdir\fB ] [ --sysroot \fIdir\fB ] \fR ] [ \fB--system-only\fR ] [ \fB--verbose\fR ] [ \fB--version\fR ] [ \fB--help\fR ] [ \fB\fIdir\fB\fR\fI...\fR ]
Line 63, length 85
\fBfc-cache\fR returns zero if the caches successfully generated. otherwise non-zero.
-.-.
Show if docman-to-man created this
1:.\" auto-generated by docbook2man-spec from docbook-utils package
-.-.
Output from "test-groff -mandoc -t -K utf8 -rF0 -rHY=0 -rCHECKSTYLE=10 -ww -z ":
an.tmac:<stdin>:2: style: .TH missing fourth argument; consider package/project name and version (e.g., "groff 1.23.0")
an.tmac:<stdin>:2: style: .TH missing fifth argument and second argument '1' not a recognized manual section; specify its title
troff:<stdin>:7: warning: trailing space in the line
-.-.
Additionally (general):
Abbreviations get a '\&' added after their final full stop (.) to mark them
as such and not as an end of a sentence.
-------------- next part --------------
--- fc-cache.1 2024-12-21 10:38:03.836742805 +0000
+++ fc-cache.1.new 2024-12-21 11:01:53.499684843 +0000
@@ -1,75 +1,76 @@
.\" auto-generated by docbook2man-spec from docbook-utils package
-.TH "FC-CACHE" "1" "Aug 13, 2008" "" ""
+.TH FC-CACHE 1 "Aug 13, 2008" "" ""
.SH NAME
fc-cache \- build font information cache files
.SH SYNOPSIS
-.sp
-\fBfc-cache\fR [ \fB-EfrsvVh\fR ] [ \fB--error-on-no-fonts\fR ] [ \fB--force\fR ] [ \fB--really-force\fR ] [ \fB [ -y \fIdir\fB ] [ --sysroot \fIdir\fB ] \fR ] [ \fB--system-only\fR ] [ \fB--verbose\fR ] [ \fB--version\fR ] [ \fB--help\fR ] [ \fB\fIdir\fB\fR\fI...\fR ]
+\fBfc-cache\fR [ \fB\-EfrsvVh\fR ] [ \fB\-\-error-on-no-fonts\fR ] [
+\fB\-\-force\fR ] [ \fB\-\-really-force\fR ] [ \fB [ \-y \fIdir\fB ] [
+\-\-sysroot \fIdir\fB ] \fR ] [ \fB\-\-system-only\fR ] [ \fB\-\-verbose\fR ] [
+\fB\-\-version\fR ] [ \fB\-\-help\fR ] [ \fB\fIdir\fB\fR\fI...\fR ]
.SH "DESCRIPTION"
-.PP
\fBfc-cache\fR scans the font directories on
the system and builds font information cache files for
applications using fontconfig for their font handling.
.PP
If directory arguments are not given,
\fBfc-cache\fR uses each directory in the
-current font configuration. Each directory is scanned for
-font files readable by FreeType. A cache is created which
-contains properties of each font and the associated filename.
-This cache is used to speed up application startup when using
-the fontconfig library.
+current font configuration.
+Each directory is scanned for font files readable by FreeType.
+A cache is created
+which contains properties of each font
+and the associated filename.
+This cache is used to speed up application startup
+when using the fontconfig library.
.PP
Note that \fBfc-cache\fR must be executed
once per architecture to generate font information customized
for that architecture.
.SH "OPTIONS"
-.PP
This program follows the usual GNU command line syntax,
-with long options starting with two dashes (`-'). A summary of
-options is included below.
+with long options starting with two dashes (`\-').
+A summary of options is included below.
.TP
-\fB-E\fR
+\fB\-E\fR
Raise an error if there are no fonts in
\fB\fIdir\fB\fR or directories
in the configuration if not given.
.TP
-\fB-f\fR
+\fB\-f\fR
Force re-generation of apparently up-to-date cache files,
overriding the timestamp checking.
.TP
-\fB-r\fR
+\fB\-r\fR
Erase all existing cache files and rescan.
.TP
-\fB-s\fR
+\fB\-s\fR
Only scan system-wide directories, omitting the places
located in the user's home directory.
.TP
-\fB-v\fR
+\fB\-v\fR
Display status information while busy.
.TP
-\fB-y\fR
+\fB\-y\fR
Prepend \fB\fIdir\fB\fR to all paths for scanning.
.TP
-\fB-h\fR
+\fB\-h\fR
Show summary of options.
.TP
-\fB-V\fR
+\fB\-V\fR
Show version of the program and exit.
.TP
\fB\fIdir\fB\fR
Directory to scan for fonts.
.SH "RETURN CODES"
-.PP
-\fBfc-cache\fR returns zero if the caches successfully generated. otherwise non-zero.
+\fBfc-cache\fR returns zero
+if the caches successfully generated, otherwise non-zero.
.SH "FILES"
.TP
\fB\fI%cachedir%/*-%arch%\&.cache-%version%\fB\fR
These files are generated by \fBfc-cache\fR
-and contain maps from file names to font properties. They are
-read by the fontconfig library at application startup to locate
+and contain maps from file names to font properties.
+They are read by the fontconfig library at application startup to locate
appropriate fonts.
.SH "SEE ALSO"
-.PP
\fBfc-cat\fR(1)
\fBfc-list\fR(1)
\fBfc-match\fR(1)
@@ -80,6 +81,5 @@ appropriate fonts.
The fontconfig user's guide, in HTML format:
\fI/usr/share/doc/fontconfig/fontconfig-user.html\fR\&.
.SH "AUTHOR"
-.PP
This manual page was written by Keith Packard
<keithp at keithp.com> and Josselin Mouette <joss at debian.org>\&.
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