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Author vstinner
Recipients BreamoreBoy, ezio.melotti, l0nwlf, lemburg, loewis, mrabarnett, nathanlmiles, rsc, terry.reedy, timehorse, vstinner
Date 2013-05-29.20:33:57
SpamBayes Score -1.0
Marked as misclassified Yes
Message-id <>
Let see Modules/_sre.c:

#define SRE_UNI_IS_WORD(ch) (SRE_UNI_IS_ALNUM(ch) || (ch) == '_')

>>> [ch.isalpha() for ch in '\u0939\u093f\u0928\u094d\u0926\u0940']
[True, False, True, False, True, False]
>>> import unicodedata
>>> [unicodedata.category(ch) for ch in '\u0939\u093f\u0928\u094d\u0926\u0940']
['Lo', 'Mc', 'Lo', 'Mn', 'Lo', 'Mc']

So the matching ends at U+093f because its category is a "spacing combining" (Mc), which is part of the Mark category, where the re module expects an alphanumeric character.


Unicode TR#18 defines \w as a shorthand for


So if we want to respect this standard, the re module needs to be modified to accept other Unicode categories.
Date User Action Args
2013-05-29 20:33:58vstinnersetrecipients: + vstinner, lemburg, loewis, terry.reedy, nathanlmiles, rsc, timehorse, ezio.melotti, mrabarnett, l0nwlf, BreamoreBoy
2013-05-29 20:33:58vstinnersetmessageid: <>
2013-05-29 20:33:58vstinnerlinkissue1693050 messages
2013-05-29 20:33:58vstinnercreate