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Re: [xsl] Combining segments by matching attributes

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This works perfectly. Thank you!

Dot

On Tue, Jul 14, 2009 at 12:01 PM, Martin Honnen<Martin.Honnen@xxxxxx> wrote:
> Dot Porter wrote:
>
>> <group>
>>  <text xml:id="A15">
>>    <seg n="220.2">...</seg>
>>    <seg n="220.3">...</seg>
>>    (etc.)
>>  </text>
>>  <text xml:id="B15">
>>    <seg n="220.2">...</seg>
>>    <seg n="220.3">...</seg>
>>    (etc.)
>>  </text>
>> </group>
>>
>> The texts may or may not have all the same segments (so text A may
>> have seg[@n='223.1'] and text B may not, or vice versa). In addition
>> the numbers are not unique to each segment (there may be several segs
>> in a row with the same number).
>>
>> Given this, I would like to generate a file that pulls together the
>> like segments from each text, resulting in something that looks like
>> this:
>>
>> <app>
>>  <rdg wit="#A15"><seg n="220.2">...</seg></rdg>
>>  <rdg wit="#B15><seg n="220.2">...</seg></rdg>
>>  (etc.)
>> </app>
>> <app>
>>  <rdg wit="#A15"><seg n="220.3">...</seg></rdg>
>>  <rdg wit="#B15><seg n="220.3">...</seg></rdg>
>>  (etc.)
>> </app>
>> <app>
>>  <!-- for example, A15 lacks seg[@n='223.1'] -->
>>  <rdg wit="#B15"><seg n="223.1">...</seg></rdg>
>>  (etc.)
>> </app>
>
> Here is an XSLT 2.0 solution:
>
> <xsl:stylesheet
>  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>  version="2.0">
>
>  <xsl:output method="xml" indent="yes"/>
>
>  <xsl:template match="/">
>    <xsl:for-each-group select="group/text/seg" group-by="@n">
>      <app>
>        <xsl:apply-templates select="current-group()"/>
>      </app>
>    </xsl:for-each-group>
>  </xsl:template>
>
>  <xsl:template match="seg">
>    <reg wit="#{../@xml:id}">
>      <xsl:copy-of select="."/>
>    </reg>
>  </xsl:template>
>
> </xsl:stylesheet>
>
>
>
>
> --
>
>        Martin Honnen
>        http://msmvps.com/blogs/martin_honnen/
>
>



--
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Dot Porter (MA, MSLS)          Metadata Manager
Digital Humanities Observatory (RIA), Regus House, 28-32 Upper
Pembroke Street, Dublin 2, Ireland
-- A Project of the Royal Irish Academy --
Phone: +353 1 234 2444        Fax: +353 1 234 2400
http://dho.ie          Email: dot.porter@xxxxxxxxx
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