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# Thursday, 15 April 2010

jxom else if (google search)

Google helps with many things but with retrospective support.

Probably guy's trying to build a nested if then else jxom elements.

We expected this and have defined a function t:generate-if-statement() in java-optimizer.xslt.

Its signature:

<!--
  Generates if/then/else if ... statements.
    $closure - a series of conditions and blocks.
    $index - current index.
    $result - collected result.
    Returns if/then/else if ... statements.
-->
<xsl:function name="t:generate-if-statement" as="element()">
  <xsl:param name="closure" as="element()*"/>
  <xsl:param name="index" as="xs:integer"/>
  <xsl:param name="result" as="element()?"/>

Usage is like this:

<!-- Generate a sequence of pairs: (condition, scope). -->
<xsl:variable name="branches" as="element()+">
  <xsl:for-each select="...">
    <!-- Generate condition. -->
    <scope>
        <!-- Generate statemetns.  -->
    </scope>
  </xsl:for-each>
</xsl:variable>

<xsl:variable name="else" as="element()?">
  <!-- Generate final else, if any. -->
</xsl:variable>

<!-- This generates if statement. -->
<xsl:sequence
  select="t:generate-if-statement($branches, count($branches) - 1, $else)"/>

P.S. By the way, we like that someone is looking into jxom.

Thursday, 15 April 2010 06:59:01 UTC  #    Comments [0] -
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