Message 303712 - Python tracker

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Author	serhiy.storchaka
Recipients	barry, ezio.melotti, mrabarnett, serhiy.storchaka
Date	2017-10-04.16:54:05
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1507136046.01.0.213398074469.issue31690@psf.upfronthosting.co.za>
In-reply-to

Content
PR 3885 is a preliminary but working implementation. Needed new tests and documentation. >>> import re >>> re.findall('(?i:[a-z]+)', ''.join(map(chr, range(0x10000)))) ['ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz', 'İı', 'ſ', 'K'] >>> re.findall('(?ia:[a-z]+)', ''.join(map(chr, range(0x10000)))) ['ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'] The engine now uses separate opcodes for case-insensitive matching in ASCII, UNICODE and LOCALE modes. It may cause small speed up of matching, but slow down of compiling.

PR 3885 is a preliminary but working implementation. Needed new tests and documentation.

>>> import re
>>> re.findall('(?i:[a-z]+)', ''.join(map(chr, range(0x10000))))
['ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz', 'İı', 'ſ', 'K']
>>> re.findall('(?ia:[a-z]+)', ''.join(map(chr, range(0x10000))))
['ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz']

The engine now uses separate opcodes for case-insensitive matching in ASCII, UNICODE and LOCALE modes. It may cause small speed up of matching, but slow down of compiling.

History
Date	User	Action	Args
2017-10-04 16:54:06	serhiy.storchaka	set	recipients: + serhiy.storchaka, barry, ezio.melotti, mrabarnett
2017-10-04 16:54:06	serhiy.storchaka	set	messageid: <1507136046.01.0.213398074469.issue31690@psf.upfronthosting.co.za>
2017-10-04 16:54:05	serhiy.storchaka	link	issue31690 messages
2017-10-04 16:54:05	serhiy.storchaka	create