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<?xml version="1.0" encoding="UTF-8"?>
<!--
Purpose:
Different templates dealing with numbers and units
Named Templates:
* get.value.from.unit(string)
Returns the number of a string without the unit; for example,
if a string contains "40mm", using this template will return 40.
* get.unit.from.unit(string)
Returns the unit of the string; for example, if a string contains
"40mm", using this template will return "mm".
Author: Thomas Schraitle <toms@opensuse.org>,
Stefan Knorr <sknorr@suse.de>
Copyright: 2013
-->
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:exsl="http://exslt.org/common"
exclude-result-prefixes="exsl">
<xsl:template name="get.value.from.unit">
<xsl:param name="string"/>
<xsl:variable name="lasttwo"
select="substring($string, string-length($string)-1, 2)"/>
<!--
<xsl:message>get.numbers.from.unit:
string="<xsl:value-of select="$string"/>"
lasttwo="<xsl:value-of select="$lasttwo"/>"
</xsl:message>
-->
<xsl:choose>
<!-- These are the possible XSL-FO units -->
<xsl:when test="$lasttwo = 'cm' or
$lasttwo = 'em' or
$lasttwo = 'in' or
$lasttwo = 'mm' or
$lasttwo = 'pc' or
$lasttwo = 'pt' or
$lasttwo = 'px'">
<xsl:value-of select="substring-before($string, $lasttwo)"/>
</xsl:when>
<xsl:when test="contains($string, '%')">
<xsl:value-of select="substring-before($string, '%')"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>Unknown unit in <xsl:value-of select="$string"/></xsl:message>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
<xsl:template name="get.unit.from.unit">
<xsl:param name="string"/>
<xsl:variable name="lasttwo"
select="substring($string, string-length($string)-1, 2)"/>
<xsl:choose>
<!-- These are the possible XSL-FO units -->
<xsl:when test="$lasttwo = 'cm' or
$lasttwo = 'em' or
$lasttwo = 'in' or
$lasttwo = 'mm' or
$lasttwo = 'pc' or
$lasttwo = 'pt' or
$lasttwo = 'px'">
<xsl:value-of select="$lasttwo"/>
</xsl:when>
<xsl:otherwise>
<xsl:message>Unknown unit in <xsl:value-of select="$string"/></xsl:message>
</xsl:otherwise>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
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