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Re: processing multiple values in a single attribute

Subject: Re: processing multiple values in a single attribute
From: "Matthew L. Avizinis" <mla@xxxxxxxxx>
Date: Fri, 15 May 2009 18:51:30 -0400
Re:  processing multiple values in a single attribute
My bad.  Of course, you're right. I didn't notice that you concated the
space at the end of the string, which is indeed simpler.

G. Ken Holman wrote:
> At 2009-05-15 18:29 -0400, Matthew L. Avizinis wrote:
>> I would add that you should use <xsl:choose> and have two <xsl:when>
>> tests:
>>
>> <xsl:choose>
>> <xsl:when test="not($string = '') and contains($string,' ')">
>>     <statemanipulation>
>>       <variableref name="{substring-before($string,' ')}"/>
>>        <fault fault-code="{substring-before($string,' ')}"
>> fault-state="ok"/>
>>     </statemanipulation>
>>     <xsl:call-template name="do-tokens">
>>       <xsl:with-param name="string" select="substring-after($string,'
>> ')"/>
>>     </xsl:call-template>
>> </xsl:when>
>> <xsl:when test="not($string = '')">
>>     <statemanipulation>
>>       <variableref name="{$string}"/>
>>        <fault fault-code="{$string}" fault-state="ok"/>
>>     </statemanipulation>
>> </xsl:when>
>> </xsl:choose>
>> in order to ensure it grabs the last value of the string.
>
> I am unsure why you are bringing this up and introducing unnecessary
> complexity.
>
> I avoided all that complexity you suggest by passing an initial string
> with expected values.  My transcript proved that the last value of the
> string was being grabbed.  I've repeated the transcript below.
>
> What benefits are obtained by replacing my single test of a single
> condition with your two tests of three conditions?
>
> Also, you have two creations of the result tree that now need to be
> maintained in unison ... an easy human error would be to update one
> and not the other.
>
> Furthermore:
>
>    <xsl:when test="not($string = '') and contains($string,' ')">
>
> is equivalent to:
>
>    <xsl:when test="contains($string,' ')">
>
> ... because if it contains a space then it must not be empty.
>
> I hope this helps clarify the archive regarding your statements that
> the suggested solution "should" be changed.  I don't see that it does
> at all.
>
> . . . . . . . . . . . . . Ken
>
> T:\ftemp>type o.xml
> <FAULT-REF FAULTS="PF01 PF02 PF03 PF04 PF05 PF06 PF07 PF08 PF09 PF10
> PF11"/>
>
> T:\ftemp>type o.xsl
> <?xml version="1.0" encoding="US-ASCII"?>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>                 version="1.0">
>
> <xsl:output indent="yes"/>
>
> <xsl:template match="FAULT-REF">
>   <xsl:call-template name="do-tokens">
>     <xsl:with-param name="string"
>                     select="concat(normalize-space(@FAULTS),' ')"/>
>   </xsl:call-template>
> </xsl:template>
>
> <xsl:template name="do-tokens">
>   <xsl:param name="string"/>
>   <xsl:if test="contains($string,' ')">
>     <statemanipulation>
>       <variableref name="{substring-before($string,' ')}"/>
>        <fault fault-code="{substring-before($string,' ')}"
> fault-state="ok"/>
>     </statemanipulation>
>     <xsl:call-template name="do-tokens">
>       <xsl:with-param name="string" select="substring-after($string,'
> ')"/>
>     </xsl:call-template>
>   </xsl:if>
> </xsl:template>
>
> </xsl:stylesheet>
> T:\ftemp>call xslt o.xml o.xsl
> <?xml version="1.0" encoding="utf-8"?>
> <statemanipulation>
>    <variableref name="PF01"/>
>    <fault fault-code="PF01" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF02"/>
>    <fault fault-code="PF02" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF03"/>
>    <fault fault-code="PF03" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF04"/>
>    <fault fault-code="PF04" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF05"/>
>    <fault fault-code="PF05" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF06"/>
>    <fault fault-code="PF06" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF07"/>
>    <fault fault-code="PF07" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF08"/>
>    <fault fault-code="PF08" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF09"/>
>    <fault fault-code="PF09" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF10"/>
>    <fault fault-code="PF10" fault-state="ok"/>
> </statemanipulation>
> <statemanipulation>
>    <variableref name="PF11"/>
>    <fault fault-code="PF11" fault-state="ok"/>
> </statemanipulation>
> T:\ftemp>
>
> -- 
> XSLT/XSL-FO/XQuery hands-on training - Los Angeles, USA 2009-06-08
> Crane Softwrights Ltd.          http://www.CraneSoftwrights.com/s/
> Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video
> Video lesson:    http://www.youtube.com/watch?v=PrNjJCh7Ppg&fmt=18
> Video overview:  http://www.youtube.com/watch?v=VTiodiij6gE&fmt=18
> G. Ken Holman                 mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
> Male Cancer Awareness Nov'07  http://www.CraneSoftwrights.com/s/bc
> Legal business disclaimers:  http://www.CraneSoftwrights.com/legal

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