Re: [xsl] tokenizing and counting with xsl:analyze-string

Subject: Re: [xsl] tokenizing and counting with xsl:analyze-string
From: "Michael Kay mike@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 17 Oct 2020 09:14:05 -0000
You can construct a sequence of booleans, in which case you should use
<xsl:sequence select="true()"/> in place of <xsl:value-of select="1"/>, and
then you can use `count($temp_result[.])` and `count($temp_result[not(.)]` to
count the number of true and false items respectively.

If you want to construct the variable as a single string, you can use
xsl:value-of as I suggested, but then you must declare the variable
as="xs:string". But using a sequence of booleans is probably better.

Michael Kay
Saxonica



> On 17 Oct 2020, at 10:04, Mukul Gandhi gandhi.mukul@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>
> On Sat, Oct 17, 2020 at 1:22 PM Michael Kay mike@xxxxxxxxxxxx
<mailto:mike@xxxxxxxxxxxx> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx
<mailto:xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>> wrote:
> With xsl:analyse-string you would still need a variable, but it could be a
simpler variable: for example it might just contain a "1" for a match, and a
"0" for a non-match; at the end you then need to count the ones and zeros
which you can do with string-length(translate(...)).
>
> With your suggestion, below mentioned is my new XSLT stylesheet,
>
> <xsl:stylesheet version="3.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform
<http://www.w3.org/1999/XSL/Transform>"
>
xmlns:xs="http://www.w3.org/2001/XMLSchema
<http://www.w3.org/2001/XMLSchema>"
>
exclude-result-prefixes="xs">
>
>    <xsl:output method="xml" indent="yes"/>
>
>    <xsl:template match="/">
>       <xsl:variable name="temp_result" as="xs:boolean*">
>           <xsl:analyze-string
select="'abhello1cdehello2fghijklhello3hello4mhello5nhello6'"
>                                          regex="hello[1-9]">
>              <xsl:matching-substring>
>                 <xsl:value-of select="1"/>
>              </xsl:matching-substring>
>              <xsl:non-matching-substring>
> 	        <xsl:value-of select="0"/>
>              </xsl:non-matching-substring>
>           </xsl:analyze-string>
>       </xsl:variable>
>       <result>
>          <yes count="{count(index-of($temp_result, true()))}"/>
>          <no count="{count(index-of($temp_result, false()))}"/>
>       </result>
>    </xsl:template>
>
> </xsl:stylesheet>
>
> The above stylesheet gives me the desired result.
>
> But the above mentioned XSLT stylesheet, doesn't do exactly what you've
suggested.
>
> I would preferably, wish to declare my XSLT variable as follows,
>
> <xsl:variable name="temp_result" as="xs:string">
>     <xsl:analyze-string ...
> </xsl:variable>
>
> with an expectation that, content of this new kind of variable would be a
string (i.e, an atomic xs:string value) of 1 s & 0 s characters, on which I
could do string-length(translate(...)). Is this doable?
>
>
>
> --
> Regards,
> Mukul Gandhi
> XSL-List info and archive <http://www.mulberrytech.com/xsl/xsl-list>
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