Thank you Mike and David,

Both stylesheets are performing extremely well. I ran them on the complete 
xml version of Hamlet and the results are: 657 milliseconds and 781 
milliseconds -- respectively David's and Mike's transformation. Even though 
my computer was 3GHz 2GB RAM these results are fantastic.

I think, these XSLT 2.0 examples completely disspell the myth that XSLT is 
not to be used for (efficient) text processing.


Cheers,

Dimitre Novatchev.
FXSL developer,

http://fxsl.sourceforge.net/ -- the home of FXSL
Resume: http://fxsl.sf.net/DNovatchev/Resume/Res.html



"Michael Kay" <mhk@xxxxxxxxx> wrote in message 
news:000001c3ee5d$35306880$6401a8c0@xxxxxxxxxx
> Sorry for the buggy code. Here is a working version:
>
> <xsl:stylesheet version="2.0"
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> <xsl:output indent="yes"/>
> <xsl:template match="/">
> <frequencies>
> <xsl:for-each-group group-by="." select="
>   for $w in tokenize(string(.), '[\s.?!,]+')[.] return lower-case($w)">
>  <xsl:sort select="count(current-group())" order="descending"/>
>  <word><xsl:value-of select="current-grouping-key(), '  -  ',
> count(current-group())"/></word>
> </xsl:for-each-group>
> </frequencies>
> </xsl:template>
> </xsl:stylesheet>
>
> (The predicate [.] elimitates the zero-length string)
>
> Here's the start of the output for othello.xml:
>
> <?xml version="1.0" encoding="UTF-8"?>
> <frequencies>
>   <word>i   -   816</word>
>   <word>and   -   794</word>
>   <word>the   -   762</word>
>   <word>to   -   591</word>
>   <word>of   -   476</word>
>   <word>you   -   458</word>
>   <word>a   -   445</word>
>   <word>my   -   427</word>
>   <word>that   -   368</word>
>   <word>iago   -   351</word>
>   <word>in   -   336</word>
>   <word>othello   -   323</word>
>   <word>not   -   313</word>
>   <word>it   -   306</word>
>   <word>is   -   286</word>
>   <word>me   -   256</word>
>   <word>cassio   -   236</word>
>   <word>for   -   234</word>
>   <word>with   -   222</word>
>   <word>be   -   220</word>
>   <word>he   -   220</word>
>   <word>this   -   217</word>
>   <word>desdemona   -   217</word>
>   <word>but   -   217</word>
>   <word>do   -   212</word>
>   <word>your   -   207</word>
>   <word>have   -   203</word>
>   <word>her   -   202</word>
>   <word>what   -   178</word>
>   <word>him   -   171</word>
>   <word>his   -   166</word>
>   <word>as   -   166</word>
>   <word>she   -   155</word>
>   <word>so   -   151</word>
>   <word>will   -   146</word>
>   <word>o   -   143</word>
>   <word>thou   -   142</word>
>   <word>if   -   137</word>
>   <word>emilia   -   136</word>
>   <word>by   -   112</word>
>
> Michael Kay
>
>
>
>
>
>> > Sorted by descending frequency:
>> >
>> > <xsl:for-each-group select="
>> >    for $w in tokenize(string(foo), "[\s.?!]*") return
>> lower-case($w)">
>> >   <xsl:sort select="count(current-group())" order="descending"/>
>> >   <xsl:value-of select="current-grouping-key(), '  -  ',
>> > count(current-group())"/> </xsl:for-each>
>>
>> Sorry, but cannot make this work.
>>
>> First had to remove the nested quotes. Then to change the ending tag.
>>
>> Now I get the message:
>>
>> "Error at xsl:for-each-group on line 10 of file:/(Untitled):
>>   Exactly one of the attributes group-by, group-adjacent,
>> group-starting-with, and group-ending-with must be specified"
>>
>> Probably this is something trivial, but this is the first
>> time I'm trying an XSLT 2.0 grouping example.
>>
>>
>> Cheers,
>>
>> Dimitre Novatchev.
>> FXSL developer,
>>
> http://fxsl.sourceforge.net/ -- the home of FXSL
> Resume: http://fxsl.sf.net/DNovatchev/Resume/Res.html
>
>
>
>
> XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
>
> XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>
> 




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