docbook-xsl/trunk/765567_non-recursive_string_subst.patch

   1 Description: use EXSLT "replace" function when available
   2  A recursive implementation  of string.subst is problematic,
   3  long strings with many matches will cause stack overflows.
   4 Author: Peter De Wachter <pdewacht@gmail.com>
   5 Bug-Debian: https://bugs.debian.org/750593
   6
   7 --- docbook-xsl-1.78.1+dfsg.orig/docbook-xsl/lib/lib.xsl
   8 +++ docbook-xsl-1.78.1+dfsg/docbook-xsl/lib/lib.xsl
   9 @@ -6,7 +6,11 @@
  10
  11       This module implements DTD-independent functions
  12
  13 -     ******************************************************************** --><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  14 +     ******************************************************************** -->
  15 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  16 +                xmlns:str="http://exslt.org/strings"
  17 +                exclude-result-prefixes="str"
  18 +                version="1.0">
  19
  20  <xsl:template name="dot.count">
  21    <!-- Returns the number of "." characters in a string -->
  22 @@ -52,6 +56,9 @@
  23    <xsl:param name="replacement"/>
  24
  25    <xsl:choose>
  26 +    <xsl:when test="function-available('str:replace')">
  27 +      <xsl:value-of select="str:replace($string, string($target), string($replacement))"/>
  28 +    </xsl:when>
  29      <xsl:when test="contains($string, $target)">
  30        <xsl:variable name="rest">
  31          <xsl:call-template name="string.subst">
  32