doc/docbook-xsl/common/autoidx-kosek.xsl

   1 <?xml version="1.0"?>
   2 <!DOCTYPE xsl:stylesheet [
   3 <!ENTITY primary   'normalize-space(concat(primary/@sortas, primary[not(@sortas)]))'>
   4
   5 ]>
   6 <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
   7                 version="1.0"
   8                 xmlns:func="http://exslt.org/functions"
   9                 xmlns:exslt="http://exslt.org/common"
  10                 xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0"
  11                 xmlns:fo="http://www.w3.org/1999/XSL/Format"
  12                 extension-element-prefixes="func exslt"
  13                 exclude-result-prefixes="func exslt i l"
  14                 xmlns:i="urn:cz-kosek:functions:index">
  15
  16 <!-- ********************************************************************
  17      $Id: autoidx-kosek.xsl,v 1.1 2007/03/10 05:14:55 scott Exp $
  18      ********************************************************************
  19
  20      This file is part of the DocBook XSL Stylesheet distribution.
  21      See ../README or http://docbook.sf.net/ for copyright
  22      and other information.
  23
  24      ******************************************************************** -->
  25
  26 <xsl:param name="kosek.imported">
  27   <xsl:variable name="vendor" select="system-property('xsl:vendor')"/>
  28   <xsl:choose>
  29     <xsl:when test="contains($vendor, 'libxslt')">
  30       <xsl:message terminate="yes">
  31         <xsl:text>ERROR: the 'kosek' index method does not </xsl:text>
  32         <xsl:text>work with the xsltproc XSLT processor.</xsl:text>
  33       </xsl:message>
  34     </xsl:when>
  35     <xsl:otherwise>1</xsl:otherwise>
  36   </xsl:choose>
  37 </xsl:param>
  38
  39 <!-- Returns index group code for given term  -->
  40 <func:function name="i:group-index">
  41   <xsl:param name="term"/>
  42
  43   <xsl:variable name="letters-rtf">
  44     <xsl:variable name="lang">
  45       <xsl:call-template name="l10n.language"/>
  46     </xsl:variable>
  47
  48     <xsl:variable name="local.l10n.letters"
  49       select="($local.l10n.xml//l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
  50
  51     <xsl:variable name="l10n.letters"
  52       select="($l10n.xml/l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
  53
  54     <xsl:choose>
  55       <xsl:when test="count($local.l10n.letters) &gt; 0">
  56         <xsl:copy-of select="$local.l10n.letters"/>
  57       </xsl:when>
  58       <xsl:when test="count($l10n.letters) &gt; 0">
  59         <xsl:copy-of select="$l10n.letters"/>
  60       </xsl:when>
  61       <xsl:otherwise>
  62         <xsl:message>
  63           <xsl:text>No "</xsl:text>
  64           <xsl:value-of select="$lang"/>
  65           <xsl:text>" localization of index grouping letters exists</xsl:text>
  66           <xsl:choose>
  67             <xsl:when test="$lang = 'en'">
  68               <xsl:text>.</xsl:text>
  69             </xsl:when>
  70             <xsl:otherwise>
  71               <xsl:text>; using "en".</xsl:text>
  72             </xsl:otherwise>
  73           </xsl:choose>
  74         </xsl:message>
  75
  76         <xsl:copy-of select="($l10n.xml/l:i18n/l:l10n[@language='en']/l:letters)[1]"/>
  77       </xsl:otherwise>
  78     </xsl:choose>
  79   </xsl:variable>
  80
  81   <xsl:variable name="letters" select="exslt:node-set($letters-rtf)/*"/>
  82
  83   <xsl:variable name="long-letter-index" select="$letters/l:l[. = substring($term,1,2)]/@i"/>
  84   <xsl:variable name="short-letter-index" select="$letters/l:l[. = substring($term,1,1)]/@i"/>
  85   <xsl:variable name="letter-index">
  86     <xsl:choose>
  87       <xsl:when test="$long-letter-index">
  88         <xsl:value-of select="$long-letter-index"/>
  89       </xsl:when>
  90       <xsl:when test="$short-letter-index">
  91         <xsl:value-of select="$short-letter-index"/>
  92       </xsl:when>
  93       <xsl:otherwise>0</xsl:otherwise>
  94     </xsl:choose>
  95   </xsl:variable>
  96   <func:result select="number($letter-index)"/>
  97 </func:function>
  98
  99 <!-- Return index group letter for given group code -->
 100 <func:function name="i:group-letter">
 101   <xsl:param name="index"/>
 102
 103   <xsl:variable name="letters-rtf">
 104     <xsl:variable name="lang">
 105       <xsl:call-template name="l10n.language"/>
 106     </xsl:variable>
 107
 108     <xsl:variable name="local.l10n.letters"
 109       select="($local.l10n.xml//l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
 110
 111     <xsl:variable name="l10n.letters"
 112       select="($l10n.xml/l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
 113
 114     <xsl:choose>
 115       <xsl:when test="count($local.l10n.letters) &gt; 0">
 116         <xsl:copy-of select="$local.l10n.letters"/>
 117       </xsl:when>
 118       <xsl:when test="count($l10n.letters) &gt; 0">
 119         <xsl:copy-of select="$l10n.letters"/>
 120       </xsl:when>
 121       <xsl:otherwise>
 122         <xsl:message>
 123           <xsl:text>No "</xsl:text>
 124           <xsl:value-of select="$lang"/>
 125           <xsl:text>" localization of index grouping letters exists</xsl:text>
 126           <xsl:choose>
 127             <xsl:when test="$lang = 'en'">
 128               <xsl:text>.</xsl:text>
 129             </xsl:when>
 130             <xsl:otherwise>
 131               <xsl:text>; using "en".</xsl:text>
 132             </xsl:otherwise>
 133           </xsl:choose>
 134         </xsl:message>
 135
 136         <xsl:copy-of select="($l10n.xml/l:i18n/l:l10n[@language='en']/l:letters)[1]"/>
 137       </xsl:otherwise>
 138     </xsl:choose>
 139   </xsl:variable>
 140
 141   <xsl:variable name="letters" select="exslt:node-set($letters-rtf)/*"/>
 142
 143   <func:result select="$letters/l:l[@i=$index][1]"/>
 144 </func:function>
 145
 146 <xsl:key name="group-code"
 147          match="indexterm"
 148          use="i:group-index(&primary;)"/>
 149
 150 </xsl:stylesheet>