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<?xml version="1.0" encoding="utf-8"?>
<!-- ********************************************************************
$Id$
********************************************************************
This file is part of the XSL DocBook Stylesheet distribution.
See ../README or http://nwalsh.com/docbook/xsl/ for copyright
and other information.
This module implements DTD-independent functions
******************************************************************** -->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:src="http://nwalsh.com/xmlns/litprog/fragment" exclude-result-prefixes="src" version="1.0">
<xsl:template name="dot.count">
<!-- Returns the number of "." characters in a string -->
<xsl:param name="string"/>
<xsl:param name="count" select="0"/>
<xsl:choose>
<xsl:when test="contains($string, '.')">
<xsl:call-template name="dot.count">
<xsl:with-param name="string" select="substring-after($string, '.')"/>
<xsl:with-param name="count" select="$count+1"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$count"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="copy-string">
<!-- returns 'count' copies of 'string' -->
<xsl:param name="string"/>
<xsl:param name="count" select="0"/>
<xsl:param name="result"/>
<xsl:choose>
<xsl:when test="$count>0">
<xsl:call-template name="copy-string">
<xsl:with-param name="string" select="$string"/>
<xsl:with-param name="count" select="$count - 1"/>
<xsl:with-param name="result">
<xsl:value-of select="$result"/>
<xsl:value-of select="$string"/>
</xsl:with-param>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$result"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="string.subst">
<xsl:param name="string"/>
<xsl:param name="target"/>
<xsl:param name="replacement"/>
<xsl:choose>
<xsl:when test="contains($string, $target)">
<xsl:variable name="rest">
<xsl:call-template name="string.subst">
<xsl:with-param name="string" select="substring-after($string, $target)"/>
<xsl:with-param name="target" select="$target"/>
<xsl:with-param name="replacement" select="$replacement"/>
</xsl:call-template>
</xsl:variable>
<xsl:value-of select="concat(substring-before($string, $target), $replacement, $rest)"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="xpointer.idref">
<xsl:param name="xpointer">http://...</xsl:param>
<xsl:choose>
<xsl:when test="starts-with($xpointer, '#xpointer(id(')">
<xsl:variable name="rest" select="substring-after($xpointer, '#xpointer(id(')"/>
<xsl:variable name="quote" select="substring($rest, 1, 1)"/>
<xsl:value-of select="substring-before(substring-after($xpointer, $quote), $quote)"/>
</xsl:when>
<xsl:when test="starts-with($xpointer, '#')">
<xsl:value-of select="substring-after($xpointer, '#')"/>
</xsl:when>
<!-- otherwise it's a pointer to some other document -->
</xsl:choose>
</xsl:template>
<xsl:template name="length-magnitude">
<xsl:param name="length" select="'0pt'"/>
<xsl:choose>
<xsl:when test="string-length($length) = 0"/>
<xsl:when test="substring($length,1,1) = '0' or substring($length,1,1) = '1' or substring($length,1,1) = '2' or substring($length,1,1) = '3' or substring($length,1,1) = '4' or substring($length,1,1) = '5' or substring($length,1,1) = '6' or substring($length,1,1) = '7' or substring($length,1,1) = '8' or substring($length,1,1) = '9' or substring($length,1,1) = '.'">
<xsl:value-of select="substring($length,1,1)"/>
<xsl:call-template name="length-magnitude">
<xsl:with-param name="length" select="substring($length,2)"/>
</xsl:call-template>
</xsl:when>
</xsl:choose>
</xsl:template>
<xsl:template name="length-units">
<xsl:param name="length" select="'0pt'"/>
<xsl:param name="default.units" select="'px'"/>
<xsl:variable name="magnitude">
<xsl:call-template name="length-magnitude">
<xsl:with-param name="length" select="$length"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="units">
<xsl:value-of select="substring($length, string-length($magnitude)+1)"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="$units = ''">
<xsl:value-of select="$default.units"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$units"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="length-spec">
<xsl:param name="length" select="'0pt'"/>
<xsl:param name="default.units" select="'px'"/>
<xsl:variable name="magnitude">
<xsl:call-template name="length-magnitude">
<xsl:with-param name="length" select="$length"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="units">
<xsl:value-of select="substring($length, string-length($magnitude)+1)"/>
</xsl:variable>
<xsl:value-of select="$magnitude"/>
<xsl:choose>
<xsl:when test="$units='cm' or $units='mm' or $units='in' or $units='pt' or $units='pc' or $units='px' or $units='em'">
<xsl:value-of select="$units"/>
</xsl:when>
<xsl:when test="$units = ''">
<xsl:value-of select="$default.units"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>
<xsl:text>Unrecognized unit of measure: </xsl:text>
<xsl:value-of select="$units"/>
<xsl:text>.</xsl:text>
</xsl:message>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="length-in-points">
<xsl:param name="length" select="'0pt'"/>
<xsl:param name="em.size" select="10"/>
<xsl:param name="pixels.per.inch" select="90"/>
<xsl:variable name="magnitude">
<xsl:call-template name="length-magnitude">
<xsl:with-param name="length" select="$length"/>
</xsl:call-template>
</xsl:variable>
<xsl:variable name="units">
<xsl:value-of select="substring($length, string-length($magnitude)+1)"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="$units = 'pt'">
<xsl:value-of select="$magnitude"/>
</xsl:when>
<xsl:when test="$units = 'cm'">
<xsl:value-of select="$magnitude div 2.54 * 72.0"/>
</xsl:when>
<xsl:when test="$units = 'mm'">
<xsl:value-of select="$magnitude div 25.4 * 72.0"/>
</xsl:when>
<xsl:when test="$units = 'in'">
<xsl:value-of select="$magnitude * 72.0"/>
</xsl:when>
<xsl:when test="$units = 'pc'">
<xsl:value-of select="$magnitude * 12.0"/>
</xsl:when>
<xsl:when test="$units = 'px'">
<xsl:value-of select="$magnitude div $pixels.per.inch * 72.0"/>
</xsl:when>
<xsl:when test="$units = 'em'">
<xsl:value-of select="$magnitude * $em.size"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>
<xsl:text>Unrecognized unit of measure: </xsl:text>
<xsl:value-of select="$units"/>
<xsl:text>.</xsl:text>
</xsl:message>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="pi-attribute">
<xsl:param name="pis" select="processing-instruction('BOGUS_PI')"/>
<xsl:param name="attribute">filename</xsl:param>
<xsl:param name="count">1</xsl:param>
<xsl:choose>
<xsl:when test="$count>count($pis)">
<!-- not found -->
</xsl:when>
<xsl:otherwise>
<xsl:variable name="pi">
<xsl:value-of select="$pis[$count]"/>
</xsl:variable>
<xsl:variable name="pivalue">
<xsl:value-of select="concat(' ', normalize-space($pi))"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="contains($pivalue,concat(' ', $attribute, '='))">
<xsl:variable name="rest" select="substring-after($pivalue,concat(' ', $attribute,'='))"/>
<xsl:variable name="quote" select="substring($rest,1,1)"/>
<xsl:value-of select="substring-before(substring($rest,2),$quote)"/>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="pi-attribute">
<xsl:with-param name="pis" select="$pis"/>
<xsl:with-param name="attribute" select="$attribute"/>
<xsl:with-param name="count" select="$count + 1"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="lookup.key">
<xsl:param name="key" select="''"/>
<xsl:param name="table" select="''"/>
<xsl:if test="contains($table, ' ')">
<xsl:choose>
<xsl:when test="substring-before($table, ' ') = $key">
<xsl:variable name="rest" select="substring-after($table, ' ')"/>
<xsl:choose>
<xsl:when test="contains($rest, ' ')">
<xsl:value-of select="substring-before($rest, ' ')"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$rest"/>
</xsl:otherwise>
</xsl:choose>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="lookup.key">
<xsl:with-param name="key" select="$key"/>
<xsl:with-param name="table" select="substring-after(substring-after($table,' '), ' ')"/>
</xsl:call-template>
</xsl:otherwise>
</xsl:choose>
</xsl:if>
</xsl:template>
<xsl:template name="xpath.location">
<xsl:param name="node" select="."/>
<xsl:param name="path" select="''"/>
<xsl:variable name="next.path">
<xsl:value-of select="local-name($node)"/>
<xsl:if test="$path != ''">/</xsl:if>
<xsl:value-of select="$path"/>
</xsl:variable>
<xsl:choose>
<xsl:when test="$node/parent::*">
<xsl:call-template name="xpath.location">
<xsl:with-param name="node" select="$node/parent::*"/>
<xsl:with-param name="path" select="$next.path"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:text>/</xsl:text>
<xsl:value-of select="$next.path"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="comment-escape-string">
<xsl:param name="string" select="''"/>
<xsl:if test="starts-with($string, '-')">
<xsl:text> </xsl:text>
</xsl:if>
<xsl:call-template name="comment-escape-string.recursive">
<xsl:with-param name="string" select="$string"/>
</xsl:call-template>
<xsl:if test="substring($string, string-length($string), 1) = '-'">
<xsl:text> </xsl:text>
</xsl:if>
</xsl:template>
<xsl:template name="comment-escape-string.recursive">
<xsl:param name="string" select="''"/>
<xsl:choose>
<xsl:when test="contains($string, '--')">
<xsl:value-of select="substring-before($string, '--')"/>
<xsl:value-of select="'- -'"/>
<xsl:call-template name="comment-escape-string.recursive">
<xsl:with-param name="string" select="substring-after($string, '--')"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$string"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="count.uri.path.depth">
<xsl:param name="filename" select="''"/>
<xsl:param name="count" select="0"/>
<xsl:choose>
<xsl:when test="contains($filename, '/')">
<xsl:call-template name="count.uri.path.depth">
<xsl:with-param name="filename" select="substring-after($filename, '/')"/>
<xsl:with-param name="count" select="$count + 1"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$count"/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="trim.common.uri.paths">
<xsl:param name="uriA" select="''"/>
<xsl:param name="uriB" select="''"/>
<xsl:param name="return" select="'A'"/>
<xsl:choose>
<xsl:when test="contains($uriA, '/') and contains($uriB, '/') and substring-before($uriA, '/') = substring-before($uriB, '/')">
<xsl:call-template name="trim.common.uri.paths">
<xsl:with-param name="uriA" select="substring-after($uriA, '/')"/>
<xsl:with-param name="uriB" select="substring-after($uriB, '/')"/>
<xsl:with-param name="return" select="$return"/>
</xsl:call-template>
</xsl:when>
<xsl:otherwise>
<xsl:choose>
<xsl:when test="$return = 'A'">
<xsl:value-of select="$uriA"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$uriB"/>
</xsl:otherwise>
</xsl:choose>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
|
