[xml/sgml-pkgs] Bug#279924: libxslt1.1: date:day-of-week-in-month() bugginess

Sal Paradise "Sal Paradise" <m2kyj0402@sneakemail.com>, 279924@bugs.debian.org
5 Nov 2004 22:53:55 -0000

Package: libxslt1.1

Version: 1.1.8-5

Severity: normal

Tags: patch

The EXSLT function date:day-of-week-in-month() produces bad values on some

inputs described here.  Apply the following stylesheet to any XML document

(the XML input is ignored) using xsltproc to reproduce.

<?xml version="1.0" encoding="utf-8"?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

  xmlns:date="http://exslt.org/dates-and-times" version="1.0">

  <xsl:output method="text"/>

<xsl:variable name="nl">




  <xsl:template match="/">

    <xsl:variable name="mydate" select="'2000-10-07T08:26:10Z'"/>

    <xsl:value-of select="date:day-of-week-in-month($mydate)"/>

    <xsl:value-of select="$nl"/>



The buggy output from libxslt1.1 is:


The correct output should be:


For an explanation of why, read the spec of this function carefully at:


Here is a patch that fixes the problem:

--- libxslt-1.1.8/libexslt/date.c       2004-05-16 23:25:26.000000000 -0400

+++ libxslt-1.1.8-fixed/libexslt/date.c 2004-11-05 17:39:09.000000000 -0500

@@ -2283,7 +2283,7 @@



-    ret = (dt->value.date.day / 7) + 1;

+    ret = ((dt->value.date.day - 1) / 7) + 1;


Note that this bug still exists in the latest upstream version (1.1.12) too,

so the patch should be forwarded upstream.

-- System Information:

Debian Release: 3.1

  APT prefers unstable

  APT policy: (500, 'unstable')

Architecture: i386 (i686)

Kernel: Linux 2.6.7

Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968)

Versions of packages libxslt1.1 depends on:

ii  libc6                       2.3.2.ds1-18 GNU C Library: Shared libraries an

ii  libgcrypt11                 1.2.0-10     LGPL Crypto library - runtime libr

ii  libgpg-error0               1.0-1        library for common error values an

ii  libxml2                     2.6.11-5     GNOME XML library

ii  zlib1g                      1:1.2.2-3    compression library - runtime

-- no debconf information