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15ae9efabe
freebsd-nq/lib/libc/regex
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Kyle Evans 15ae9efabe The impending libregex will implement GNU extensions to bring BREs and 
EREs closer together. Prepare for this and reduce the diff of libregex changes by
refactoring and combining the top-level parsers for EREs/BREs ahead of time.

Branching functionality has been split out to make it easier to follow the combined
version of the top-level parser. It may also be enabled in the parsing context to make
it easier when libregex enables branching for BREs.

A branching context was also added for the various branching functions and so that
BREs, for instance, can determine if they're the first expression in a chain of expressions
within the current branch and treat '*' as ordinary if so.

This should have no functional impact and negligible performance impact.

Reviewed by:	cem, emaste, pfg
Approved by:	emaste (mentor)
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D10920
2017-07-06 17:01:51 +00:00
..
grot Replace dot-dot relative pathing with SRCTOP-relative paths where possible 2017-01-20 03:23:24 +00:00
cname.h regex: unsign and constify some variables. 2017-04-23 21:51:29 +00:00
COPYRIGHT BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00
engine.c Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
Makefile.inc Replace use of ${.CURDIR} by ${LIBC_SRCTOP} and define ${LIBC_SRCTOP} 2014-03-04 02:19:39 +00:00
re_format.7 Remove SVR4 (System V Release 4) binary compatibility support. 2017-02-28 05:14:42 +00:00
regcomp.c The impending libregex will implement GNU extensions to bring BREs and 2017-07-06 17:01:51 +00:00
regerror.c regex: unsign and constify some variables. 2017-04-23 21:51:29 +00:00
regex2.h The impending libregex will implement GNU extensions to bring BREs and 2017-07-06 17:01:51 +00:00
regex.3 Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
regexec.c regex: unsign and constify some variables. 2017-04-23 21:51:29 +00:00
regfree.c regex: unsign and constify some variables. 2017-04-23 21:51:29 +00:00
Symbol.map Use C comments since we now preprocess these files with CPP. 2007-04-29 14:05:22 +00:00
utils.h Renumber copyright clause 4 2017-02-28 23:42:47 +00:00
WHATSNEW BSD 4.4 Lite Lib Sources 1994-05-27 05:00:24 +00:00