Batch transformations

>>>>> "Colin" == Colin Paul Adams <colin@xxxxxxxxxxxxxxxxxx> writes:

    Aaron> To allow groups of files to be translated.

    Colin> But this can be done within a transformation using
    Colin> collection and xsl:result-document.

To illustrate. The following transformation, if invoked as:

gestalt --template=initial batch.xsl

does the following:

For every file in the current working directory that contains the
characters .xsl as part of its filename, it writes another files with
the name changed to end in .out. 
The contents of each such file is the single element document,
containing a text node of the document URi of the original file.

But any other transformation can be coded just by changing the
contents of the xsl:result-document element.

<?xml version="1.0" encoding="utf-8"?>
<xsl:transform 
   xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
   xmlns:xs="http://www.w3.org/2001/XMLSchema"
   xmlns:gexslt="http://www.gobosoft.com/eiffel/gobo/gexslt/extension"
   exclude-result-prefixes="gexslt xs"
   version="2.0">

<xsl:output method="xml" indent="yes"/>

<xsl:template name="initial">
 <xsl:variable name="col" as="node()*">
  <xsl:sequence select="collection()"/>
 </xsl:variable>
 <doc>
  <xsl:choose>
   <xsl:when test="system-property ('gexslt:standard-file-collection') eq 'yes'">
    <xsl:for-each select="$col">
     <xsl:choose>
       <xsl:when test="gexslt:file/@xml:base[contains(.,'.xsl')]">
	 <xsl:apply-templates mode="batch" select="doc(.)"/>
       </xsl:when>
     </xsl:choose>
    </xsl:for-each>
   </xsl:when>
   <xsl:otherwise>
    <xsl:value-of>Standard file: collection is not available</xsl:value-of>
   </xsl:otherwise>
  </xsl:choose>
 </doc>
</xsl:template>

<xsl:template mode="batch" match="/">
  <xsl:variable name="doc-uri" select="document-uri(.)" as="xs:string"/>
  <xsl:variable name="out" select="concat(substring-before($doc-uri, 'xsl'), 'out')" as="xs:string"/>
  <xsl:result-document href="{$out}">
    <document>
      <xsl:value-of select="$doc-uri"/>
    </document>
  </xsl:result-document>
</xsl:template>

</xsl:transform>

-- 
Colin Adams
Preston Lancashire