[ python-Feature Requests-1701452 ] Feature request: Comparing regexps

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Feature Requests item #1701452, was opened at 2007-04-16 07:28
Message generated for change (Comment added) made by rhettinger
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Category: Python Library
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Thomas Dybdahl Ahle (thomasda)
>Assigned to: Gustavo Niemeyer (niemeyer)
Summary: Feature request: Comparing regexps

Initial Comment:
It would be very nice with a function in the re module to compare two regular expressions and see how they overlap.
Return value would perhaps be an a constant like DISJOINT, SUBSET etc.

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>Comment By: Raymond Hettinger (rhettinger)
Date: 2007-04-16 15:43

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Can this be done in the existing implementation by comparing the racetrack
diagrams (character transitions)?

Thomas, do you know of anywhere this have been done (third-party modules
or in other languages)?

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