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<?xml version="1.0"?>
<!-- *********************************************************************
** Stylesheet to rearrange font-/path-elements in an SVG file. **
** It's part of the dvisvgm package. **
** Copyright (C) 2009-2024 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
** **
** The code generated by this script is also licensed under the terms **
** of the GNU general public license version 3 or later. **
***********************************************************************-->
<xsl:stylesheet version="1.0"
xmlns="http://www.w3.org/2000/svg"
xmlns:svg="http://www.w3.org/2000/svg"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:exsl="http://exslt.org/common"
xmlns:str="http://exslt.org/strings"
xmlns:mg="my-namespace"
extension-element-prefixes="exsl str"
exclude-result-prefixes="svg xlink exsl str mg">
<xsl:key name="path-by-id" match="/svg:defs/svg:path" use="@id"/>
<xsl:variable name="styles-rtf">
<xsl:for-each select="str:tokenize(/*/svg:style[@type='text/css'], ' ')">
<xsl:sort select="substring-after(., ' ')"/>
<mg:style new-id="f{position()}" id="{substring-before(substring-after(., '.'), ' ')}">
<xsl:value-of select="substring-after(., ' ')"/>
</mg:style>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="styles" select="exsl:node-set($styles-rtf)/mg:style"/>
<xsl:variable name="num-paths" select="count(/*/svg:defs/svg:path)"/>
<xsl:variable name="defs-rtf">
<xsl:for-each select="/*/svg:defs/svg:path">
<xsl:sort select="@d"/>
<mg:path id="{@id}" new-id="g{position()}"/>
</xsl:for-each>
<xsl:for-each select="/*/svg:defs/svg:use">
<xsl:sort select="concat(key('path-by-id', substring(@xlink:href, 2))/@d, @transform)"/>
<mg:use id="{@id}" new-id="g{position()+$num-paths}"/>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="defs" select="exsl:node-set($defs-rtf)"/>
<xsl:template match="*|@*">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="svg:defs[svg:path]">
<xsl:copy>
<xsl:apply-templates select="svg:path">
<xsl:sort select="@d"/>
</xsl:apply-templates>
<xsl:apply-templates select="svg:use">
<xsl:sort select="$defs/mg:use[@id=current()/@id]/@new-id"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template match="svg:defs[svg:font]">
<xsl:copy>
<xsl:apply-templates>
<xsl:sort select="@id"/>
</xsl:apply-templates>
</xsl:copy>
</xsl:template>
<xsl:template match="svg:defs/svg:path">
<path id="{$defs/mg:path[@id=current()/@id]/@new-id}" d="{@d}"/>
</xsl:template>
<xsl:template match="svg:defs/text()"/>
<xsl:template match="svg:use">
<xsl:variable name="href" select="substring(@xlink:href, 2)"/>
<xsl:copy>
<xsl:apply-templates select="@*"/>
<xsl:if test="ancestor::svg:defs">
<xsl:attribute name="id">
<xsl:value-of select="$defs/mg:use[@id=current()/@id]/@new-id"/>
</xsl:attribute>
</xsl:if>
<xsl:attribute name="xlink:href">
<xsl:value-of select="concat('#', $defs/*[@id=$href]/@new-id)"/>
</xsl:attribute>
</xsl:copy>
</xsl:template>
<xsl:template match="svg:style[@type='text/css']">
<style type="text/css">
<xsl:for-each select="$styles">
<xsl:value-of select="concat('text.f', position(), ' ', ., ' ')"/>
</xsl:for-each>
</style>
</xsl:template>
<xsl:template match="svg:text">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:attribute name="class">
<xsl:value-of select="$styles[@id=current()/@class]/@new-id"/>
</xsl:attribute>
<xsl:apply-templates/>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
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