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Re: [xsl] Positional grouping problem


Subject: Re: [xsl] Positional grouping problem
From: Mark Peters <markpeters.work@xxxxxxxxx>
Date: Fri, 1 Feb 2013 14:13:51 -0500

Hi Ken,

Perfect! Ah yes, I see where you added the <xsl:choose/>
condition.That makes sense. It's funny what you can sometimes only see
in hindsight.

Thanks so much!

Mark

On Fri, Feb 1, 2013 at 1:57 PM, G. Ken Holman
<gkholman@xxxxxxxxxxxxxxxxxxxx> wrote:
> At 2013-02-01 13:40 -0500, Mark Peters wrote:
>>
>> I've trying to group certain nodes in a flat MediaWiki ML file to
>> allow readers to show and hide the content. The grouping is based on
>> font sizes declared in a @style attribute, which have a uniform
>> structure across all content files.
>>
>> Essentially, I'm trying to group each <div/> node where the @style
>> contains "14pt" with its following siblings. Some of the siblings have
>> other font sizes smaller than 14pt; others have no declared font sizes
>> because they wrap other nodes, such as tables.
>
>
> You were really close.
>
> What you weren't checking is that when the group does not match the grouping
> criteria for group-starting-with, then you are in the content before the
> first group.
>
> I hope the solution below helps ... if I haven't missed seeing anything then
> the output matches what you said you wanted.
>
> . . . . . . . . Ken
>
>
> T:\ftemp>type mark.xml
> <?xml version="1.0" encoding="UTF-8"?>
>
> <div style="margin-bottom: 15pt; margin-left: 20pt;"
> xmlns="http://www.w3.org/1999/xhtml">
>     <div style="blah" />
>     <div style="font-family: sans-serif; font-size: 10pt;">
>         <span>Text</span>
>     </div>
>     <div style="font-size: 17pt;">
>         <span>Page Title</span>
>     </div>
>     <hr />
>     <div style="font-size: 14pt;">
>         <span>Title</span>
>     </div>
>     <div style="font-family: sans-serif; font-size: 10pt;">
>         <span>Text</span>
>     </div>
>     <div style="margin-left: 5pt;">
>         <table />
>     </div>
>     <div style="font-family: sans-serif; font-size: 10pt;">
>         <span>Text</span>
>     </div>
>     <div style="font-size: 14pt;">
>         <span>Title</span>
>     </div>
>     <div style="font-family: sans-serif; font-size: 10pt;">
>         <span>Text</span>
>     </div>
>     <div style="font-family: sans-serif; font-size: 10pt;">
>         <span>Text</span>
>     </div>
>     <div style="margin-left: 5pt;">
>         <table />
>     </div>
> </div>
>
> T:\ftemp>call xslt2 mark.xml mark.xsl
>
> <div xmlns="http://www.w3.org/1999/xhtml"
>      style="margin-bottom: 15pt; margin-left: 20pt;">
>    <div style="blah"/>
>    <div style="font-family: sans-serif; font-size: 10pt;">
>         <span>Text</span>
>     </div>
>    <div style="font-size: 17pt;">
>         <span>Page Title</span>
>     </div>
>    <hr/>
>    <div class="NavFrame">
>       <div class="NavHead">Title</div>
>       <div class="NavContent">
>          <div style="font-family: sans-serif; font-size: 10pt;">
>             <span>Text</span>
>          </div>
>          <div style="margin-left: 5pt;">
>             <table/>
>          </div>
>          <div style="font-family: sans-serif; font-size: 10pt;">
>             <span>Text</span>
>          </div>
>       </div>
>    </div>
>    <div class="NavFrame">
>       <div class="NavHead">Title</div>
>       <div class="NavContent">
>          <div style="font-family: sans-serif; font-size: 10pt;">
>             <span>Text</span>
>          </div>
>          <div style="font-family: sans-serif; font-size: 10pt;">
>             <span>Text</span>
>          </div>
>          <div style="margin-left: 5pt;">
>             <table/>
>          </div>
>       </div>
>    </div>
> </div>
>
> T:\ftemp>type mark.xsl
> <?xml version="1.0" encoding="UTF-8"?>
>
> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>   xmlns:html="http://www.w3.org/1999/xhtml"
>   xmlns="http://www.w3.org/1999/xhtml"
>   exclude-result-prefixes="html"
>   version="2.0">
>
> <xsl:output indent="yes" omit-xml-declaration="yes"/>
>
>
> <xsl:template match="html:div">
>   <xsl:copy>
>     <xsl:copy-of select="@*"/>
>     <xsl:for-each-group select="*"
>            group-starting-with="html:div[contains(@style,'14pt')]">
>       <xsl:choose>
>         <xsl:when test="self::html:div[contains(@style,'14pt')]">
>           <!--found a group-->
>
>           <div class="NavFrame">
>             <div class="NavHead">
>               <xsl:copy-of select="html:span/node()"/>
>             </div>
>             <div class="NavContent">
>               <xsl:copy-of select="current-group()[position()>1]"/>
>             </div>
>           </div>
>         </xsl:when>
>         <xsl:otherwise>
>           <!--this is the pre-amble before the first group-->
>           <xsl:copy-of select="current-group()"/>
>         </xsl:otherwise>
>       </xsl:choose>
>
>     </xsl:for-each-group>
>   </xsl:copy>
> </xsl:template>
>
> </xsl:stylesheet>
> T:\ftemp>rem Done!
>
>
> --
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> G. Ken Holman                   mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
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>



-- 
Senior technical writer
Saba Software, Inc.


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