Re: [xsl] Can group-by treat its target it two ways?

Subject: Re: [xsl] Can group-by treat its target it two ways?
From: Michael Kay <mike@xxxxxxxxxxxx>
Date: Sat, 05 Nov 2011 18:11:55 +0000
On 05/11/2011 17:48, Martin Honnen wrote:
Mark wrote:

 How can I make
<xsl:for-each-group select="Word"
group-by="lower-case(substring(@word,1,1))"> consider 'ch' as a single
letter? (Right now, it is tacking all of the 'ch' words at the end of
the 'c' file because of the substring(@word, 1,1) filter.

What happens with <xsl:for-each-group select="Word" group-by="lower-case(substring(@word,1,1))" collation="http://saxon.sf.net/collation?lang=cs";> ?

substring() counts Unicode codepoints, not collation units, so if the word starts with 'ch', it will return 'c'.

Michael Kay
Saxonica

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