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/ [EMAIL PROTECTED] was heard to say:
| One such "error" I regularily come across during the conversion process is
| <xref> tags pointing to invalid IDs. To help with me in the conversion
| process, I'm looking to test my Docbook XML for the presence of an <xref>,
| then look for the corresponding ID tag, the results being a nice little
| list of just the problematic <xref> tags - using the list, I'd then be
| able to manually check the source document, work out what the <xref>
| should actually be doing and fix it in the Docbook XML.
Ok, then here's my suggestion.
1. Remove the <!DOCTYPE declaration so that the document is only WF
2. Try this stylesheet:
<xsl:stylesheet ...>
<xsl:template match="text()"/> <!-- who cares -->
<xsl:template match="*[@linkend]">
<xsl:variable name="linkend" select="@linkend"/>
<xsl:variable name="targets" select="//*[@id=$linkend]"/>
<xsl:choose>
<xsl:when test="count($targets) = 0">
<xsl:message>invalid link: ...</xsl:message>
</xsl:when>
<xsl:when test="count($targets) > 1">
<xsl:message>link is not unique: ...</xsl:message>
</xsl:when>
</xsl:choose>
</xsl:template>
</xsl:stylesheet>
That should give you a summary of ID problems.
Be seeing you,
norm
- --
Norman Walsh <[EMAIL PROTECTED]> | Men do not quit playing because
http://www.oasis-open.org/docbook/ | they grow old; they grow old
Chair, DocBook Technical Committee | because they quit playing.--Oliver
| Wendell Holmes
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