https://github.com/python/cpython
- HEAD
- refs/heads/3.10
- refs/heads/3.11
- refs/heads/3.12
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- refs/heads/3.8
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- refs/heads/main
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- v3.10.0
- v2.7.18rc1
- v2.7.18
- v2.7.17rc1
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- v2.7.16rc1
- v2.7.16
- v2.7.15rc1
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- v2.7.14rc1
- v2.7.14
- legacy-trunk
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Tip revision: 16c8eccfcf85811d1d9368aacb94b47ae8195719 authored by cvs2svn on 31 December 1997, 05:53:15 UTC
This commit was manufactured by cvs2svn to create tag 'release15'.
This commit was manufactured by cvs2svn to create tag 'release15'.
Tip revision: 16c8ecc
regex_syntax.py
# These bits are passed to regex.set_syntax() to choose among
# alternative regexp syntaxes.
# 1 means plain parentheses serve as grouping, and backslash
# parentheses are needed for literal searching.
# 0 means backslash-parentheses are grouping, and plain parentheses
# are for literal searching.
RE_NO_BK_PARENS = 1
# 1 means plain | serves as the "or"-operator, and \| is a literal.
# 0 means \| serves as the "or"-operator, and | is a literal.
RE_NO_BK_VBAR = 2
# 0 means plain + or ? serves as an operator, and \+, \? are literals.
# 1 means \+, \? are operators and plain +, ? are literals.
RE_BK_PLUS_QM = 4
# 1 means | binds tighter than ^ or $.
# 0 means the contrary.
RE_TIGHT_VBAR = 8
# 1 means treat \n as an _OR operator
# 0 means treat it as a normal character
RE_NEWLINE_OR = 16
# 0 means that a special characters (such as *, ^, and $) always have
# their special meaning regardless of the surrounding context.
# 1 means that special characters may act as normal characters in some
# contexts. Specifically, this applies to:
# ^ - only special at the beginning, or after ( or |
# $ - only special at the end, or before ) or |
# *, +, ? - only special when not after the beginning, (, or |
RE_CONTEXT_INDEP_OPS = 32
# ANSI sequences (\n etc) and \xhh
RE_ANSI_HEX = 64
# No GNU extensions
RE_NO_GNU_EXTENSIONS = 128
# Now define combinations of bits for the standard possibilities.
RE_SYNTAX_AWK = (RE_NO_BK_PARENS | RE_NO_BK_VBAR | RE_CONTEXT_INDEP_OPS)
RE_SYNTAX_EGREP = (RE_SYNTAX_AWK | RE_NEWLINE_OR)
RE_SYNTAX_GREP = (RE_BK_PLUS_QM | RE_NEWLINE_OR)
RE_SYNTAX_EMACS = 0
# (Python's obsolete "regexp" module used a syntax similar to awk.)