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Laurens Aarnoudse

Subject: Copying XML as is with one change, how can I insert an action into the copy procedure?
Author: Laurens Aarnoudse
Date: 05 Apr 2011 05:52 AM
Originally Posted: 05 Apr 2011 05:47 AM

I wanted to copy an xml file entirely with one change: one element called <enclosure> should become <image>. This was more difficult to achieve than I expected.

I tried to use a if-then construction to copy everything except when the element <enclosure> has been encounted. In that case it selects an attribute of that element and tries to put that in between <image> tags. This is where I get the error "cannot write an attribute when there is no open start tag". I suspect something goes wrong when the xslt parses through all the elements.

<xsl:template match="*">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>
<xsl:template match="@*|text()|comment()|processing-instruction()">
<xsl:choose>
<xsl:when test="contains(name(), 'url')">
<image>
<xsl:value-of select="."/>
</image>
</xsl:when>

<xsl:otherwise>
<xsl:copy-of select="."/>
</xsl:otherwise>
</xsl:choose>
</xsl:template>

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