From XML::Twig documentation:

Processing an XML document chunk by chunk

One of the strengths of XML::Twig is that it let you work with files that do not fit in memory (BTW storing an XML document in memory as a tree is quite memory-expensive, the expansion factor being often around 10).

To do this you can define handlers, that will be called once a specific element has been completely parsed. In these handlers you can access the element and process it as you see fit, using the navigation and the cut-n-paste methods, plus lots of convenient ones like prefix . Once the element is completely processed you can then flush it, which will output it and free the memory. You can also purge it if you don't need to output it (if you are just extracting some data from the document for example). The handler will be called again once the next relevant element has been parsed.

so, short answer, replace $t->flush; with $t->purge;.

In reply to Re: Trying to disable/edit stdout output with XML::Twig by kennethk
in thread Trying to disable/edit stdout output with XML::Twig by bryank

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