Hi guys,
I'm trying to split a set of nested <topic> elements into separate XML
files using the Xalan redirect extension. My input XML document could
contain as many as four levels of <topic> elements, with <topic> being
the root-level node. My plan is to split the root-level <topic> into
its own file (without including any child <topic>s). The first level
of child <topic>s would also get their own files. This set of files
would include any nested <topic> elements.
My plan is to split a chapter of technical documentation containing
nested topics into a separate files containing the chapter-level
(overview) topic file and the major heading topics.
Can I match the two desired levels of <topic> elements using XPath?
I'm guessing I could use match="root" to express the top
(chapter-level) node. But I'm having some trouble wrapping my mind
around the XPath processing flow ("contains"? "ancestor"?
"following-sibling"?) to formulate a match for my highest child
<topic> elements.
This is my input XML:
<topic id="1">
<title>Root level</title>
<prolog/>
<body>
<p>This is the root-level topic.</p>
</body>
<topic id="2a">
<title>Child level 2a</title>
<prolog/>
<body>
<p>This is child level 2a.</p>
</body>
<topic id="3a">
<title>Child level 3a</title>
<prolog/>
<body>
<p>This is child level 3a.</p>
</body>
</topic>
</topic>
<topic id="2b">
<title>Child level 2b</title>
<prolog/>
<body>
<p>This is child level 2b.</p>
</body>
<topic id="3b">
<title>Child level 3b</title>
<prolog/>
<body>
<p>This is child level 3b.</p>
</body>
</topic>
<topic id="3c">
<title>Child level 3c</title>
<prolog/>
<body>
<p>This is child level 3c.</p>
</body>
</topic>
</topic>
</topic>
This is my desired output XML (3 separate XML files):
File 1:
<topic id="1">
<title>Root level</title>
<prolog/>
<body>
<p>This is the root-level topic.</p>
</body>
</topic>
File 2:
<topic id="2a">
<title>Child level 2a</title>
<prolog/>
<body>
<p>This is child level 2a.</p>
</body>
<topic id="3a">
<title>Child level 3a</title>
<prolog/>
<body>
<p>This is child level 3a.</p>
</body>
</topic>
</topic>
File 3:
<topic id="2b">
<title>Child level 2b</title>
<prolog/>
<body>
<p>This is child level 2b.</p>
</body>
<topic id="3b">
<title>Child level 3b</title>
<prolog/>
<body>
<p>This is child level 3b.</p>
</body>
</topic>
<topic id="3c">
<title>Child level 3c</title>
<prolog/>
<body>
<p>This is child level 3c.</p>
</body>
</topic>
</topic>
This is my XSL stylesheet draft:
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:redirect="http://xml.apache.org/xalan/redirect";
extension-element-prefixes="redirect" version="1.0">
<xsl:output method="xml"/>
<xsl:template match="/">
<xsl:apply-templates/>
</xsl:template>
<xsl:template match="root">
<xsl:variable name="filename" select="concat(@id,'.xml')"/>
<redirect:write select="$filename">
<topic id="{(_at_)id}">
<xsl:apply-templates/>
</topic>
</redirect:write>
</xsl:template>
<xsl:template match="topic[???]">
<xsl:variable name="filename" select="concat(@id,'.xml')"/>
<redirect:write select="$filename">
<topic id="{(_at_)id}">
<xsl:apply-templates/>
</topic>
</redirect:write>
</xsl:template>
<xsl:template match="title">
<xsl:copy-of select="."/>
</xsl:template>
<xsl:template match="prolog">
<xsl:copy-of select="."/>
</xsl:template>
<xsl:template match="body">
<xsl:copy-of select="."/>
</xsl:template>
</xsl:stylesheet>
Any help would be greatly appreciated.
Regards,
Mark
--
Mark Peters
Senior Technical Writer
Saba Software
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