diff options
Diffstat (limited to 'Cython/Plex/Regexps.py')
| -rw-r--r-- | Cython/Plex/Regexps.py | 52 |
1 files changed, 8 insertions, 44 deletions
diff --git a/Cython/Plex/Regexps.py b/Cython/Plex/Regexps.py index 41816c939..99d8c994a 100644 --- a/Cython/Plex/Regexps.py +++ b/Cython/Plex/Regexps.py @@ -1,21 +1,16 @@ -#======================================================================= -# -# Python Lexical Analyser -# -# Regular Expressions -# -#======================================================================= +""" +Python Lexical Analyser +Regular Expressions +""" from __future__ import absolute_import import types -try: - from sys import maxsize as maxint -except ImportError: - from sys import maxint from . import Errors +maxint = 2**31-1 # sentinel value + # # Constants # @@ -186,37 +181,6 @@ class RE(object): # These are the basic REs from which all others are built. # -## class Char(RE): -## """ -## Char(c) is an RE which matches the character |c|. -## """ - -## nullable = 0 - -## def __init__(self, char): -## self.char = char -## self.match_nl = char == '\n' - -## def build_machine(self, m, initial_state, final_state, match_bol, nocase): -## c = self.char -## if match_bol and c != BOL: -## s1 = self.build_opt(m, initial_state, BOL) -## else: -## s1 = initial_state -## if c == '\n' or c == EOF: -## s1 = self.build_opt(m, s1, EOL) -## if len(c) == 1: -## code = ord(self.char) -## s1.add_transition((code, code+1), final_state) -## if nocase and is_letter_code(code): -## code2 = other_case_code(code) -## s1.add_transition((code2, code2+1), final_state) -## else: -## s1.add_transition(c, final_state) - -## def calc_str(self): -## return "Char(%s)" % repr(self.char) - def Char(c): """ @@ -428,6 +392,7 @@ class SwitchCase(RE): name = "Case" return "%s(%s)" % (name, self.re) + # # Composite RE constructors # ------------------------- @@ -469,7 +434,6 @@ def Any(s): """ Any(s) is an RE which matches any character in the string |s|. """ - #result = apply(Alt, tuple(map(Char, s))) result = CodeRanges(chars_to_ranges(s)) result.str = "Any(%s)" % repr(s) return result @@ -549,6 +513,7 @@ def Case(re): """ return SwitchCase(re, nocase=0) + # # RE Constants # @@ -573,4 +538,3 @@ Eof.__doc__ = \ Eof is an RE which matches the end of the file. """ Eof.str = "Eof" - |