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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:str="http://exslt.org/strings"
                xmlns:exslt="http://exslt.org/common"
                extension-element-prefixes="str exslt xsl"
                exclude-result-prefixes="str exslt xsl">

  <xsl:template name="lang.highlight.make.subtokenate">
    <xsl:param name="data"/>
    <xsl:param name="nokeywords"/>

    <xsl:choose>
      <xsl:when test="starts-with($data, '@') and substring($data, string-length($data)) = '@'">
        <span class="PreProc"><xsl:value-of select="$data"/></span>
      </xsl:when>

      <xsl:when test="starts-with($data, '%')">
        <span class="Identifier"><xsl:value-of select="$data"/></span>
      </xsl:when>

      <xsl:when test="contains($data, '$(')">
        <xsl:call-template name="lang.highlight.m4.subtokenate">
          <xsl:with-param name="data" select="substring-before($data, '$(')"/>
          <xsl:with-param name="nokeywords" select="$nokeywords"/>
        </xsl:call-template>
        <span class="Identifier">$(<xsl:call-template name="lang.highlight.m4.subtokenate">
          <xsl:with-param name="data" select="substring-before(substring-after($data, '$('), ')')"/>
          <xsl:with-param name="nokeywords" select="$nokeywords"/>
        </xsl:call-template>)</span>
        <xsl:call-template name="lang.highlight.m4.subtokenate">
          <xsl:with-param name="data" select="substring-after(substring-after($data, '$('), ')')"/>
          <xsl:with-param name="nokeywords" select="$nokeywords"/>
        </xsl:call-template>
      </xsl:when>

      <xsl:when test="$nokeywords = 'True'">
        <xsl:value-of select="$data"/>
      </xsl:when>

      <!-- sh grammar -->
      <xsl:when test="$data = '$?' or $data = '&gt;' or $data = '$@' or $data = ':'">
        <span class="Identifier"><xsl:value-of select="$data"/></span>
      </xsl:when>

      <!-- No match return -->
      <xsl:otherwise>
        <xsl:value-of select="$data"/>
      </xsl:otherwise>
    </xsl:choose>
  </xsl:template>

  <xsl:template name="lang.highlight.make.tokenate">
    <xsl:param name="data"/>

    <!-- Only tokenize spaces, this way we preserve tabs. -->
    <xsl:variable name="tokenizedData" select="str:tokenize_plasmaroo($data, '&quot; &#9;')"/>

    <!-- Scan for quotes... -->
    <xsl:for-each select="exslt:node-set($tokenizedData)">
    <xsl:variable name="myPos" select="position()"/>
    <xsl:variable name="quotePos" select="count(../*[@delimiter='&quot;' and position() &lt; $myPos])"/>

    <xsl:choose>
      <xsl:when test="../*[position()=3] = '=' and $myPos = 1">
        <span class="Type"><xsl:value-of select="."/></span>
      </xsl:when>

      <!-- Highlight a quote -->
      <xsl:when test=". = '&quot;'">
        <span class="Statement">&quot;</span>
      </xsl:when>

      <!-- If we're inside quotes stop here -->
      <xsl:when test="$quotePos mod 2 != 0">
        <span class="Constant">
        <xsl:call-template name="lang.highlight.make.subtokenate">
          <xsl:with-param name="data"><xsl:value-of select="."/></xsl:with-param>
          <xsl:with-param name="nokeywords">True</xsl:with-param>
        </xsl:call-template>
        </span>
      </xsl:when>

      <!-- Highlight variable assignments;
           @regexp = [\w]=["']{...}['"] -->
      <xsl:when test="contains(., '=')">
        <xsl:call-template name="lang.highlight.make.subtokenate">
          <xsl:with-param name="data" select="substring-before(., '=')"/>
        </xsl:call-template>
        <span class="Constant">=</span>
        <xsl:call-template name="lang.highlight.make.subtokenate">
          <xsl:with-param name="data" select="substring-after(., '=')"/>
        </xsl:call-template>
      </xsl:when>

      <!-- No match return -->
      <xsl:otherwise>
        <xsl:call-template name="lang.highlight.make.subtokenate">
          <xsl:with-param name="data" select="."/>
        </xsl:call-template>
      </xsl:otherwise>
    </xsl:choose>
    </xsl:for-each>
  </xsl:template>

</xsl:stylesheet>

<!-- Local Variables: -->
<!-- indent-tabs-mode: nil -->
<!-- fill-column: 120 -->
<!-- End: -->