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Re: Revision Marking in HTML

2005-04-26 07:59:58

Hi David,

I will give it a shot and see what happens.

Thanks

Nadia Swaby
Knowledge Management, Plant #22
ext. 5466


                                                                                
                                             
                      David Carlisle                                            
                                             
                      <davidc(_at_)nag(_dot_)co(_dot_)u         To:      
xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com                                
      
                      k>                       cc:                              
                                             
                                               Subject: Re: [xsl] Revision 
Marking in HTML                                   
                      2005-04-26 08:40                                          
                                             
                      Please respond                                            
                                             
                      to xsl-list                                               
                                             
                                                                                
                                             
                                                                                
                                             





this is essentially a grouping problem: you want to group all nodes
between matching Pis together, and any of the standard XSLT1 grouping
techniques can be used.

I can't tell from your posting whether it's a hard or an easy problem


In particular, where can the processing instructions appear.

If I insert some text that starts in one element and finishes in another
do I edn up with

<para> fooo <?xm-insertion_mark_start ?> bar</para>
<para> more bar <?xm-insertion_mark_end ?> more foo>/para>

If so, your problem is "interesting".

If the PIs always appear in pairs that are well balanced with respect to
the element nesting, the problem is a lot less "interesting" but a lot
more feasible to supply a completely general solution.

I'll assume the latter, and offer the standard key based grouping
method:

<xsl:key name="p" match="node()"
use="generate-id(preceding-sibling::processing-instruction('xm-insertion_mark_start'))"/>



then whenever you would have use apply-templates, use

<xsl:choose>
<xsl:when test="text()[normalize-space()] and
processing-instruction('xm-insertion_mark_start')">
<xsl:apply-templates
select="processing-instruction('xm-insertion_mark_start')[1]/preceding-sibling::node()"/>

<xsl:for-each
select="processing-instruction('xm-insertion_mark_start')">
<span class="revcontrol>
<xsl:apply-templates select="key('p',generate-id())"/>
</span>
</xsl:for-each>
</xsl:when>
<xsl:when test="processing-instruction('xm-insertion_mark_start')">
<xsl:apply-templates
select="processing-instruction('xm-insertion_mark_start')[1]/preceding-sibling::node()"/>

<xsl:for-each
select="processing-instruction('xm-insertion_mark_start')">
<div class="revcontrol>
<xsl:apply-templates select="key('p',generate-id())"/>
</div>
</xsl:for-each>
</xsl:when>
<xsl:otherwise>
<xsl:apply-templates/>
</xsl:otherwise>
</xsl:choose>

David (untested)


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