XML::Twig Stream root children

Herkum has asked for the wisdom of the Perl Monks concerning the following question:

I have XML documents that are large XML documents and I want to break them up into multiple documents.

# Start
<root>
<a>
  <b>Test</b>
</a>
<aa>
  <b>Test</b>
</aa>
</root>
[download]

# New Document
<root>
<a>
  <b>Test</b>
</a>
</root>

<root>
<aa>
  <b>Test</b>
</aa>
</root>
[download]

I figured I could use twig_handlers, except for one problem. I don't know the exact name of the elements that will be below the root of the document. If I had the names it would be easy, but I am not sure exactly how to approach this.

I could just get all the children under the root, but I want to avoid having to process the whole document for performance reasons. Does anyone have any suggestions or am I missing something obvious?

Comment on XML::Twig Stream root children Select or Download Code

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Re: XML::Twig Stream root children by toolic (Bishop) on Oct 02, 2009 at 20:24 UTC
Will xml_split help?	[reply]
Re^2: XML::Twig Stream root children by Herkum (Parson) on Oct 02, 2009 at 20:28 UTC
xml_split does not create valid xml documents. It is appears mainly to allow you break apart the document and then put it back together with xml_merge. I guess I could modify the resulting document after running it. If I don't have any other solutions.	[reply]
Re^3: XML::Twig Stream root children by Anonymous Monk on Oct 03, 2009 at 01:47 UTC
xml_split does not create valid xml documents. Sure it does. Observe `$$ echo THIS IS THE SAME AS xml_split -v Herkum.xml $$ xml_split -v -c "level(1)" Herkum.xml generating main file Herkum-00.xml generating Herkum-01.xml generating Herkum-02.xml $$ cat Herkum-00.xml && echo <root> <?merge subdocs = 0 :Herkum-01.xml?> <?merge subdocs = 0 :Herkum-02.xml?> </root> $$ cat Herkum-01.xml && echo <a> <b>Test</b> </a> $$ cat Herkum-02.xml && echo <aa> <b>Test</b> </aa>` [download] You can use "level(1)" with twig_handlers	[reply] [d/l]
Re^4: XML::Twig Stream root children by mirod (Canon) on Oct 03, 2009 at 16:08 UTC
Re^5: XML::Twig Stream root children by Herkum (Parson) on Oct 05, 2009 at 14:59 UTC
Re^3: XML::Twig Stream root children by mirod (Canon) on Oct 04, 2009 at 09:51 UTC
Would you care to explain? I tried to make it output well-formed fragments. About the only thing I can think of that would trip xml_split would be DTDs with entities, and if you have an example, I would be glad to make it work for you. Thanks	[reply]
Re^4: XML::Twig Stream root children by Anonymous Monk on Oct 04, 2009 at 10:51 UTC
Re^5: XML::Twig Stream root children by mirod (Canon) on Oct 04, 2009 at 20:16 UTC
Re^5: XML::Twig Stream root children by Herkum (Parson) on Oct 04, 2009 at 14:02 UTC
Re: XML::Twig Stream root children by Skeeve (Parson) on Oct 03, 2009 at 15:46 UTC
I currently don't have XML::Twig installed, but shouldn't a generic handler like `'/root/' => \&process_child,` [download] do? Simply create in "process_child" a new root element, cut the current element and insert it into your new root. Save the new root and that should be it. `s$$([},&%#}/&/]+}%&{});#$&&s&&$^X.($'^"%]=\&(\|?{%` `+`.+=%;.#_}\&"^"-+%).}%:##%}={~=~:.")&e&&s""`$''`"e	[reply] [d/l] [select]