Subject: Re: [xsl] Nesting a flat XML structure From: "Eliot Kimber ekimber@xxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Tue, 30 Oct 2018 14:02:22 -0000 |
The DITA for Publishers Word-to-DITA transformation framework (https://github.com/dita4publishers/org.dita4publishers.word2dita) provides a general two-stage processing pipeline to go from Word XML to DITA. It produces an intermediate XML format that simplifies the original Word XML and then applies transforms to that to infer the hierarchical structure based on a separate style-to-tag mapping file. If nothing else, it demonstrates heavy use of for-each-group to do non-trivial grouping, including dynamic adjustment of the result hierarchy based on determination of effective levels from clues in the source without the need for 100% explicit leveling reflected in your style names. It does require that named styles be used (the transform comes from Publishing requirements where well-prepared manuscripts are a rule) but it could be adapted to be more general if needed. Ibve recently adapted the intermediate format to also generate high-quality DOCX files through the Wordinator project (https://github.com/drmacro/wordinator) so you could, in theory round trip from Word to XML back to Word (although nobody that I know of has actually tried to do that and Ibm not sure it would ever actually make sense to do so). While itbs designed to generate DITA XML as a result it can be adapted to produce any XML, either directly or as a follow-on transform. It is currently implemented in XSLT 2 (the code has been around for almost a decade now). Cheers, Eliot -- Eliot Kimber http://contrext.com From: "ian.proudfoot@xxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Reply-To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Date: Monday, October 29, 2018 at 1:13 PM To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx> Subject: [xsl] Nesting a flat XML structure Hello XSLT experts. I have a need to transform flat xml that was sourced from a word processor file and generate the implied structure. My efforts have been partially successful for one level nesting but Ibm finding it difficult to manage the process for an arbitrary number of nested levels. Herebs 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> <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 Ibve got myself tied-up in knots trying to work out how to make it work for any further nesting. Perhaps Ibm overthinking it? I tried to create a recursive template to do the work, but thatbs where I got stuck. Ibm using the latest version of Saxon via the version 9 API. Thanks in advance. Ian Proudfoot Isle of Wight, UK XSL-List info and archive EasyUnsubscribe (by email)
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