Subject: [xsl] Pattern: Replicating Key Table Construction for Debugging From: "W. Eliot Kimber" <eliot@xxxxxxxxxx> Date: Tue, 19 Feb 2002 20:49:48 -0600 |
This should have been obvious, but it took me a while to figure it out and I know a lot of people are struggling with key-based processing: There's no direct way to see what the entries in a table are (e.g., the equivalent of Hastable.getKeySet() in Java). However, you can easily replicate what the key table is doing and sanity check what's happening. All you do is a for-each from the root that uses the same select rule as the key. For example, if your key declaration is: <xsl:key name="primary" match="index.marker" use="normalize-space(concat(primary/@sortas, primary[not(@sortas)]))"/> Then to see what is actually going into the table, just do this: <xsl:for-each select="//index.marker"> <xsl:message>key='<xsl:value-of select="normalize-space(concat(primary/@sortas, primary[not(@sortas)]))"/>'</xsl:message> </xsl:for-each> This should print out the equivalent of all the entries in the table. You can also capture the key value and do a lookup in the table to see, for example, how many of that entry are in the table under that key. <xsl:for-each select="//index.marker"> <xsl:variable name="tempkey"> <xsl:value-of select="normalize-space(concat(primary/@sortas, primary[not(@sortas)]))"/> <xsl:variable> <xsl:message>key='<xsl:value-of select="$tempkey"/>'</xsl:message> <xsl:message> <xsl:value-of select="count(key('primary', $tempkey))/> items found </xsl:message> </xsl:for-each> Cheers, Eliot -- W. Eliot Kimber, eliot@xxxxxxxxxx Consultant, ISOGEN International 1016 La Posada Dr., Suite 240 Austin, TX 78752 Phone: 512.656.4139 XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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