Claude Schneegans wrote: >>I find two things helps immensely with RegExs: > >>1) Break them down into pieces and test the pieces first. Even with only >>moderately complex expressions this helps tremendously. > >>2) Have a good reference for the implementation you're using handy. If you >>meet somebody that claims the ability to do complex RegEx with no reference >>they're either lying or mutants (or Mike D). ;^)
Ah, but a regex with references (in the search string) is not a regex (that is, a type-3 language on Chomsky's hierarchy[1]), but what I like to call an Irregular Expression (or irregex, for short), which is a lower type language masquarading as a type-3 one. Not that they're not terribly useful, that is... ;-) K. [1] http://www.augustana.ca/~mohrj/courses/common/csc370/lecture_notes/chomsky.html ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Logware (www.logware.us): a new and convenient web-based time tracking application. Start tracking and documenting hours spent on a project or with a client with Logware today. Try it for free with a 15 day trial account. http://www.houseoffusion.com/banners/view.cfm?bannerid=67 Message: http://www.houseoffusion.com/lists.cfm/link=i:4:199544 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
