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Peter Loh Yoon Chao wrote:
>
> I currently have XML files with a flat key-value structure and the elements
> are unsorted and without proper formatting, e.g.
>
> <main>
> <e.f.g>
> <value xml:lang="en">data 2</value>
> </e.f.g>
> <a.b.c>
> <value xml:lang="en">data 1</value>
> </a.b.c>
> ...
> </main>
>
> Are there any existing libraries or mechanisms to do the following?
> - convert the file structure into a hierarchical tree structure
> - alphabetically sorting the individual elements at each level
> - indent the individual nodes properly in the resulting XML file
>
For unflattening and sorting the data, xslt would probably be a good
choice (depending on the details of your data and what you want to do).
Search the archives of the Mulberry xslt list, and look at Jeni
Tenison's xslt pages, and Dave Pawson's xslt faq pages. There have been
a number of threads of flattening and unflattening xml documents.
http://jenitennison.com/xslt/index.html
http://www.dpawson.co.uk/xsl/xslfaq.html
As for pretty-printing the xml file, it depends on what you want and how
fussy you are about the appearance, given that it doe snot change the
xml content of the data. With xslt, just specifying indent='yes' may
give you what you want. Tidy can also be an easy - command line or
programmable - way to format in a postprocessing step.
Cheers,
Tom P
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