summaryrefslogtreecommitdiff
path: root/docs/xsl-generic/common/autoidx-kosek.xsl
blob: 386e4528ae93e75f3e9fc0538fe2997186c2595d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
<?xml version="1.0"?>
<!DOCTYPE xsl:stylesheet [
<!ENTITY primary   'normalize-space(concat(primary/@sortas, primary[not(@sortas)]))'>

]>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="1.0"
                xmlns:func="http://exslt.org/functions"
                xmlns:exslt="http://exslt.org/common"
                xmlns:l="http://docbook.sourceforge.net/xmlns/l10n/1.0"
                xmlns:fo="http://www.w3.org/1999/XSL/Format"
                extension-element-prefixes="func exslt"
                exclude-result-prefixes="func exslt i l"
                xmlns:i="urn:cz-kosek:functions:index">

<!-- ********************************************************************
     $Id: autoidx-kosek.xsl 6910 2007-06-28 23:23:30Z xmldoc $
     ********************************************************************

     This file is part of the DocBook XSL Stylesheet distribution.
     See ../README or http://docbook.sf.net/ for copyright
     copyright and other information.

     ******************************************************************** -->

<xsl:param name="kosek.imported">
  <xsl:variable name="vendor" select="system-property('xsl:vendor')"/>
  <xsl:choose>
    <xsl:when test="contains($vendor, 'libxslt')">
      <xsl:message terminate="yes">
        <xsl:text>ERROR: the 'kosek' index method does not </xsl:text>
        <xsl:text>work with the xsltproc XSLT processor.</xsl:text>
      </xsl:message>
    </xsl:when>
    <xsl:otherwise>1</xsl:otherwise>
  </xsl:choose>
</xsl:param>

<!-- Returns index group code for given term  -->
<func:function name="i:group-index">
  <xsl:param name="term"/>
  
  <xsl:variable name="letters-rtf">
    <xsl:variable name="lang">
      <xsl:call-template name="l10n.language"/>
    </xsl:variable>
    
    <xsl:variable name="local.l10n.letters"
      select="($local.l10n.xml//l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
    
    <xsl:variable name="l10n.letters"
      select="($l10n.xml/l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
    
    <xsl:choose>
      <xsl:when test="count($local.l10n.letters) &gt; 0">
        <xsl:copy-of select="$local.l10n.letters"/>
      </xsl:when>
      <xsl:when test="count($l10n.letters) &gt; 0">
        <xsl:copy-of select="$l10n.letters"/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:message>
          <xsl:text>No "</xsl:text>
          <xsl:value-of select="$lang"/>
          <xsl:text>" localization of index grouping letters exists</xsl:text>
          <xsl:choose>
            <xsl:when test="$lang = 'en'">
              <xsl:text>.</xsl:text>
            </xsl:when>
            <xsl:otherwise>
              <xsl:text>; using "en".</xsl:text>
            </xsl:otherwise>
          </xsl:choose>
        </xsl:message>
        
        <xsl:copy-of select="($l10n.xml/l:i18n/l:l10n[@language='en']/l:letters)[1]"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:variable>
  
  <xsl:variable name="letters" select="exslt:node-set($letters-rtf)/*"/>
  
  <xsl:variable name="long-letter-index" select="$letters/l:l[. = substring($term,1,2)]/@i"/>
  <xsl:variable name="short-letter-index" select="$letters/l:l[. = substring($term,1,1)]/@i"/>
  <xsl:variable name="letter-index">
    <xsl:choose>
      <xsl:when test="$long-letter-index">
        <xsl:value-of select="$long-letter-index"/>
      </xsl:when>
      <xsl:when test="$short-letter-index">
        <xsl:value-of select="$short-letter-index"/>
      </xsl:when>
      <xsl:otherwise>0</xsl:otherwise>
    </xsl:choose>
  </xsl:variable>
  <func:result select="number($letter-index)"/>
</func:function>

<!-- Return index group letter for given group code -->
<func:function name="i:group-letter">
  <xsl:param name="index"/>

  <xsl:variable name="letters-rtf">
    <xsl:variable name="lang">
      <xsl:call-template name="l10n.language"/>
    </xsl:variable>
    
    <xsl:variable name="local.l10n.letters"
      select="($local.l10n.xml//l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
    
    <xsl:variable name="l10n.letters"
      select="($l10n.xml/l:i18n/l:l10n[@language=$lang]/l:letters)[1]"/>
    
    <xsl:choose>
      <xsl:when test="count($local.l10n.letters) &gt; 0">
        <xsl:copy-of select="$local.l10n.letters"/>
      </xsl:when>
      <xsl:when test="count($l10n.letters) &gt; 0">
        <xsl:copy-of select="$l10n.letters"/>
      </xsl:when>
      <xsl:otherwise>
        <xsl:message>
          <xsl:text>No "</xsl:text>
          <xsl:value-of select="$lang"/>
          <xsl:text>" localization of index grouping letters exists</xsl:text>
          <xsl:choose>
            <xsl:when test="$lang = 'en'">
              <xsl:text>.</xsl:text>
            </xsl:when>
            <xsl:otherwise>
              <xsl:text>; using "en".</xsl:text>
            </xsl:otherwise>
          </xsl:choose>
        </xsl:message>
        
        <xsl:copy-of select="($l10n.xml/l:i18n/l:l10n[@language='en']/l:letters)[1]"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:variable>
  
  <xsl:variable name="letters" select="exslt:node-set($letters-rtf)/*"/>
  
  <func:result select="$letters/l:l[@i=$index][1]"/>
</func:function>

<xsl:key name="group-code"
         match="indexterm"
         use="i:group-index(&primary;)"/>

</xsl:stylesheet>