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xml2md_gfm.xsl
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xml2md_gfm.xsl
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<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet
version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:md="http://commonmark.org/xml/1.0">
<!-- Import commonmark XSL -->
<xsl:import href="xml2md.xsl"/>
<xsl:template match="/">
<xsl:apply-imports/>
</xsl:template>
<!-- params -->
<xsl:output method="text" encoding="utf-8"/>
<!-- Text that needs to be preserved (e.g. math/checkboxes) -->
<xsl:template match="md:emph[@asis='true']">
<!--
Multiple subscripts in a LaTeX equation will result in emph tags.
our stylesheet enforces "*" for emph, we are using this workaround
for aiss emph.
-->
<xsl:text>_</xsl:text>
<xsl:apply-templates select="md:text[@asis='true']"/>
<xsl:text>_</xsl:text>
</xsl:template>
<xsl:template match="md:text[@asis='true']">
<xsl:value-of select='string(.)'/>
</xsl:template>
<xsl:template match="md:link[@rel] | md:image[@rel]">
<xsl:if test="self::md:image">!</xsl:if>
<xsl:text>[</xsl:text>
<xsl:apply-templates select="md:*"/>
<xsl:text>][</xsl:text>
<xsl:value-of select='string(@rel)'/>
<xsl:text>]</xsl:text>
</xsl:template>
<xsl:template match="md:link[@anchor]">
<xsl:if test="self::md:image">!</xsl:if>
<xsl:text>[</xsl:text>
<xsl:apply-templates select="md:*"/>
<xsl:text>]: </xsl:text>
<xsl:call-template name="escape-text">
<xsl:with-param name="text" select="string(@destination)"/>
<xsl:with-param name="escape" select="'()'"/>
</xsl:call-template>
<xsl:if test="string(@title)">
<xsl:text> "</xsl:text>
<xsl:call-template name="escape-text">
<xsl:with-param name="text" select="string(@title)"/>
<xsl:with-param name="escape" select="'"'"/>
</xsl:call-template>
<xsl:text>"</xsl:text>
</xsl:if>
<xsl:text> </xsl:text>
</xsl:template>
<!-- Table -->
<xsl:template match="md:table">
<xsl:apply-templates select="." mode="indent-block"/>
<xsl:apply-templates select="md:*"/>
</xsl:template>
<xsl:variable name="minLength">3</xsl:variable>
<xsl:variable name="maxLength">
<xsl:for-each select="//md:table_header/md:table_cell">
<xsl:variable name="pos" select="position()"/>
<!-- EXslt or XSLT 1.1 would be needed to lookup node-sets;
thus generating a string (something like CELL1:7|CELL2:5|CELL3:9|CELL4:8|) -->
<xsl:text>CELL</xsl:text>
<xsl:value-of select="$pos"/>
<xsl:text>:</xsl:text>
<xsl:for-each select="//md:table_cell[position()=$pos]/md:text">
<xsl:sort data-type="number" select="string-length()" order="descending"/>
<xsl:if test="position()=1">
<xsl:value-of select="string-length()"/>
<xsl:value-of select="'|'"/>
</xsl:if>
</xsl:for-each>
</xsl:for-each>
</xsl:variable>
<!-- recursive template to print n dashes/characters -->
<xsl:template name="n-times">
<xsl:param name="n"/>
<xsl:param name="char"/>
<xsl:if test="$n > 0">
<xsl:call-template name="n-times">
<xsl:with-param name="n" select="$n - 1"/>
<xsl:with-param name="char" select="$char"/>
</xsl:call-template>
<xsl:value-of select="$char"/>
</xsl:if>
</xsl:template>
<xsl:template match="md:table_header">
<xsl:text>| </xsl:text>
<xsl:apply-templates select="md:*"/>
<xsl:text>
| </xsl:text>
<xsl:for-each select="md:table_cell">
<!-- helper variable for the lookup -->
<xsl:variable name="cell" select="concat('CELL',position())"/>
<!-- length of longest value in col -->
<xsl:variable name="maxFill" select="number(substring-before(substring-after($maxLength,concat($cell,':')),'|'))"/>
<xsl:variable name="fill">
<xsl:choose>
<xsl:when test="$maxFill < $minLength">
<xsl:value-of select="$minLength"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$maxFill"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:if test="position() != 1">
<xsl:text> </xsl:text>
</xsl:if>
<xsl:choose>
<xsl:when test="@align = 'right'">
<xsl:call-template name="n-times">
<xsl:with-param name="n" select="$fill -1"/>
<xsl:with-param name="char" select="'-'"/>
</xsl:call-template>
<xsl:text>: |</xsl:text>
</xsl:when>
<xsl:when test="@align = 'left'">
<xsl:text>:</xsl:text>
<xsl:call-template name="n-times">
<xsl:with-param name="n" select="$fill -1"/>
<xsl:with-param name="char" select="'-'"/>
</xsl:call-template>
<xsl:text> |</xsl:text>
</xsl:when>
<xsl:when test="@align = 'center'">
<xsl:text>:</xsl:text>
<xsl:call-template name="n-times">
<xsl:with-param name="n" select="$fill -2"/>
<xsl:with-param name="char" select="'-'"/>
</xsl:call-template>
<xsl:text>: |</xsl:text>
</xsl:when>
<xsl:otherwise>
<xsl:call-template name="n-times">
<xsl:with-param name="n" select="$fill"/>
<xsl:with-param name="char" select="'-'"/>
</xsl:call-template>
<xsl:text> |</xsl:text>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="md:table_cell">
<xsl:variable name="cell" select="concat('CELL',position())"/>
<!-- length of longest value in col -->
<xsl:variable name="maxFill" select="number(substring-before(substring-after($maxLength,concat($cell,':')),'|'))"/>
<xsl:variable name="fill">
<xsl:choose>
<xsl:when test="$maxFill < $minLength">
<xsl:value-of select="$minLength - string-length(md:text)"/>
</xsl:when>
<xsl:when test="string-length(md:text)=$maxFill">0</xsl:when>
<xsl:otherwise>
<xsl:value-of select="$maxFill - string-length(md:text)"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>
<xsl:apply-templates select="md:*"/>
<xsl:call-template name="n-times">
<xsl:with-param name="n" select="$fill"/>
<xsl:with-param name="char" select="' '"/>
</xsl:call-template>
<xsl:text> | </xsl:text>
</xsl:template>
<xsl:template match="md:table_row">
<xsl:text>| </xsl:text>
<xsl:apply-templates select="md:*"/>
<xsl:text>
</xsl:text>
</xsl:template>
<xsl:template match="md:table_row">
<xsl:text>| </xsl:text>
<xsl:apply-templates select="md:*"/>
<xsl:text>
</xsl:text>
</xsl:template>
<!-- Striked-through -->
<xsl:template match="md:strikethrough">
<xsl:text>~~</xsl:text>
<xsl:apply-templates select="md:*"/>
<xsl:text>~~</xsl:text>
</xsl:template>
</xsl:stylesheet>