Sorry to reply to my own post. I realized that you won't get a well-formed
XML document with my original solution. Here's the fix:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:variable name="exclude" select="document('excludedoc.xml')"/>
<xsl:template match="modify">
<modify>
<xsl:apply-templates/>
</modify>
</xsl:template>
<xsl:template match="modify-attr">
<xsl:variable name="name" select="@attr-name"/>
<xsl:if test="not($exclude/exclude-list/exclude-attr[.=$name])">
<xsl:copy-of select="."/>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
Of course, you probably have a bunch of other templates to manage anyway,
but I do like to have my answers produce well-formed output.
Re-tested with Saxon 8.4 Xalan-J 2.4.1.
Jay Bryant
Bryant Communication Services
(presently consulting at Synergistic Solution Technologies.
JBryant(_at_)s-s-t(_dot_)com
04/19/2005 11:51 AM
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Re: [xsl] xsl:for-each...iteration question
My solution would go like this:
At the top of the stylesheet, use the document function to write the
exclude-attr elements into a variable (so that I only have to use the
document function once).
In the modify-attr template, see if the current node has a matching
exclude-attr element (by examining the contents of that variable).
If not, write the modify-attr element to the result.
So, I'd end up with this:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:variable name="exclude" select="document('excludedoc.xml')"/>
<xsl:template match="modify-attr">
<xsl:variable name="name" select="@attr-name"/>
<xsl:if test="not($exclude/exclude-list/exclude-attr[.=$name])">
<xsl:copy-of select="."/>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
Tested with Saxon 8.4 and Xalan-J 2.4.1.
Jay Bryant
Bryant Communication Services
(presently consulting at Synergistic Solution Technologies)
"Paul Coletti" <pcoletti(_at_)novell(_dot_)com>
04/19/2005 11:19 AM
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[xsl] xsl:for-each...iteration question
This has been answered before I'm sure but doing a relevant search in the
archives is tricky.
I've an input doc containing a number of modify-attr elements
<modify>
<modify-attr attr-name = "abc"/>
<modify-attr attr-name = "123"/>
<modify-attr attr-name = "789"/>
</modify>
I have another document containing a list of prohibited attributes.
<exclude-list>
<exclude-attr>123</exclude-attr>
</exclude-list>
I want to iterate over my input doc and copy all those modify-attr
elements that are NOT in the exclude list to the output.
<xsl:template match="modify/modify-attr">
<xsl:variable name="currentAttr" select="@attr-name"/>
<xsl:variable name="currentNode" select="."/>
<xsl:for-each select="document('excludedoc')/exclude-list/exclude-attr">
<xsl:when test="$currentAttr=.">
<xsl:message>Exclude</xsl:message>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="$currentNode"/>
</xsl:otherwise>
</xsl:for-each>
</xsl:template>
Obvisouly, this is flawed, I get multiple modify-attr elements copied to
the output because I cannot see a way of ensuring the for-each only copies
a permitted node once and once only.
I've a feeling this is approaching the problem from the wrong way....
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