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Re: [xsl] Nesting a flat XML structure

2018-10-29 13:28:49
On 29.10.2018 19:14, ian(_dot_)proudfoot(_at_)itp-x(_dot_)co(_dot_)uk wrote:

Here’s a much simplified, but representative example of typical source XML:

<doc>

         <p style="h1">title text</p>

         <p style="para">body text</p>

         <p style="para">body text</p>

         <p style="bullet_level1">list text</p>

         <p style="bullet_level1">list text</p>

         <p style="bullet_level2">list text</p>

         <p style="bullet_level2">list text</p>

         <p style="bullet_level2">list text</p>

         <p style="h2">title text</p>

         <p style="para">body text</p>

         <p style="para">body text</p>

     </doc>

I need to generate the nested structure to look like similar to this (again much simplified):

<doc>

         <section>

             <title>title text</title>

             <p>body text</p>

             <p>body text <ul>


Why is the "ul" a child of the "p" element?

                     <li>list text</li>

                     <li>list text<ul>

                             <li>list text</li>

                             <li>list text</li>

                             <li>list text</li>

                         </ul>

                     </li>

                 </ul>

             </p>

             <section>

                 <title>title text</title>

                 <p>body text</p>

                 <p>body text</p>

             </section>

         </section>

</doc>

There is no way to know in advance the level of nesting that may be needed. The rules for nesting are provided by a separate mapping file. The mapping file is used as the input to generate a document specific xslt file that handles element naming and adds all of the necessary attributes. The format and content of that mapping file are under my control but the source documents are not.

My initial efforts used xsl:for-each-group with group adjacent to identify and nest the first level and that works nicely, but I’ve got myself tied-up in knots trying to work out how to make it work for any further nesting. Perhaps I’m overthinking it? I tried to create a recursive template to do the work, but that’s where I got stuck.

It might help if you show us the first level grouping that does the right job.

It seems you need to combine two approaches, one to recursively group and wrap sections based on the 'p style="hn"' (which I think can be done with "group-starting-with"), the other based on "group-adjacent" for list items.
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