Re: [xsl] alphabetic set of xsl:result-document

Subject: Re: [xsl] alphabetic set of xsl:result-document
From: James Cummings <cummings.james@xxxxxxxxx>
Date: Mon, 22 Aug 2005 15:54:07 +0100
On 8/22/05, David Carlisle <davidc@xxxxxxxxx> wrote:
> You probably don't need both the key (the xslt1 way of grouping) and
> for-each-group.
> after
> <xsl:for-each-group select="//div[@type='psalm']//w"
> select="key('word', lower-case(.)"
> is probably the same thing as
> select="current-group()"
> so you are probably making saxon index everything twice.
> If I understand you correctly you just need to insert an extra layer of
> grouping, just grouping on the first letter:
> <xsl:for-each-group select="//div[@type='psalm']//w"
> group-by="lower-case(substring(.,1,1)">
> <xsl:result-file....
> <xsl:for-each-group select="current-group()" group-by="lower-case(.)">
>      <xsl:sort select="lower-case(.)" />

Ok, my brain just isn't working today... Let's expand this.  Say I
have an xml snippet of:
<p id="p1">
<w>This</w> <w>is</w> <w>a</w> <w>test</w>, <w>only</w> <w>a</w> <w>test</w>.
<w>This</w> <w>is</w> <w>a</w> <w>test</w>, <w>only</w> <w>a</w> <w>test</w>.
<p id="p2">
<w>This</w> <w>is</w> <w>a</w> <w>test</w>, <w>only</w> <w>a</w> <w>test</w>.
<w>This</w> <w>Is</w> <w>a</w> <w>boring</w> <w>test</w>, <w>only</w>
<w>a</w> <w>test</w>.
<w>This</w> <w>is</w> <w>a</w> <w>simplified</w> <w>Test</w>,
<w>only</w> <w>a</w> <w>test</w>.

If I abandon key() but still want to produce an word index broken down
by alphabetic letter, are you saying I should do something along the
(currently-broken) lines of:

<xsl:template match="/">
<xsl:for-each-group select="//w" group-by="lower-case(.)">
<xsl:sort select="lower-case(.)"/>
<xsl:variable name="pID" select="ancestor::p/@id"/>
<xsl:for-each-group select="lower-case(.)"
<xsl:sort select="lower-case(substring(.,1,1))"/>
<xsl:result-document href="FILE-{lower-case(substring(.,1,1))}.html">
<h1>Ouput for <xsl:value-of select="substring(lower-case(.),1,1)" /></h1>
<xsl:for-each-group select="current-group()" group-by="lower-case(.)">
href="htmlversion.html#{$pID}"><xsl:value-of select="current-group()" /></a>
This of course, doesn't work, because it is trying to write multiple
output to the same URI.  As you know, this grouping stuff has always
confused me. :-(  The actual xslt I've been hacking has an x:replace()
function replacing certain characters (u/v i/y thorn/th) for
comparison purchases based on a previous answer you once gave me ;-)

James Cummings, Cummings dot James at GMail dot com

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