Ndiff performance improvements

[Henri Doreau <henri.doreau () gmail com>]

Hello,

please find attached a patch for ndiff that changes the way XML
elements are handled. Instead of doing a long if/elif/else check for
each element, I have added two dicts associating element names to
callbacks (one dict to handle start_ and one to handle end_ handlers).
The aim was to improve performance.

New version takes 2 seconds less to process a 115MB file (1:04.52 vs
1:06.65 unpatched).

Regards

-- 
Henri

Attachment: ndiff_xml_callbacks.patch
Description:

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