def make_pattern(rules, flags=0):
"""Compile a rules to single branch with groups."""
pattern = Pattern()
pattern.flags = flags
pattern.subpatterns = [None] * (len(rules) + 1)
return sre_compile(SubPattern(pattern, [
(BRANCH, (None, [SubPattern(pattern, [
(SUBPATTERN, (group, parse(regex, flags, pattern))),
]) for group, (regex, _) in enumerate(rules, 1)]))
]))
def __init__(self, rules, flags=0):
pattern = Pattern()
pattern.flags = flags
pattern.groups = len(rules) + 1
self.rules = [name for name, _ in rules]
self._scanner = sre_compile(SubPattern(pattern, [
(BRANCH, (None, [SubPattern(pattern, [
(SUBPATTERN, (group, parse(regex, flags, pattern))),
]) for group, (_, regex) in enumerate(rules, 1)]))
])).scanner
def __init__(self, rules, flags=0):
pattern = Pattern()
pattern.flags = flags
pattern.groups = len(rules) + 1
self.rules = [name for name, _ in rules]
self._scanner = sre_compile(
SubPattern(pattern, [(BRANCH, (None, [
SubPattern(pattern, [
(SUBPATTERN, (group, parse(regex, flags, pattern))),
]) for group, (_, regex) in enumerate(rules, 1)
]))])).scanner
self.at = [] # array dei token
self.idx = 0 # indice su at del token corrente
def __init__(self, rules, flags=0):
# Convert the flags to an int if they are not already
# https://github.com/python/cpython/commit/c1c47c166b1012d34f2c6e111ee9ccb5c4d12de7
if isinstance(flags, RegexFlag):
flags = flags.value
pattern = Pattern()
pattern.flags = flags
pattern.groups = len(rules) + 1
_og = pattern.opengroup
pattern.opengroup = lambda n: _og('\x00'.join((name, n)) if n else n)
self.rules = []
subpatterns = []
for group, (name, regex) in enumerate(rules, 1):
last_group = pattern.groups - 1
subpatterns.append(SubPattern(pattern, [
(SUBPATTERN, (group, *append_subpattern_extra_flags,
parse(regex, flags, pattern))),
]))
self.rules.append((name, last_group, pattern.groups - 1))
self._scanner = sre_compile(SubPattern(
pattern, [(BRANCH, (None, subpatterns))])).scanner
def __init__(self, flags=0, with_whitespaces=False):
self.lexicon = get_lexicon(PYTHON_VERSION_LESS_THAN_3)
self.groups = Groups
p = []
s = Pattern()
s.flags = flags
if PYTHON_VERSION_LESS_THAN_3:
s.groups = len(self.lexicon) + 1
for group, (phrase, name) in enumerate(self.lexicon, 1):
p.append(
SubPattern(s, [
(SUBPATTERN, (group, parse(phrase, flags))),
])) # append subpattern
self.lexicon.append((group - 1, name))
else:
for phrase, name in self.lexicon:
gid = s.opengroup()
p.append(
SubPattern(s, [
(SUBPATTERN, (gid, 0, 0, parse(phrase, flags))),
]))
s.closegroup(gid, p[-1])
p = SubPattern(s, [(BRANCH, (None, p))])
self.scanner = sre_compile(p).scanner
self.with_whitespaces = with_whitespaces
def __init__(self, rules, flags=0):
pattern = Pattern()
pattern.flags = flags
if sys.version_info < (3, 0):
pattern.groups = len(rules) + 1
_og = pattern.opengroup
pattern.opengroup = lambda n: _og(n and '%s\x00%s' % (name, n) or n)
self.rules = []
subpatterns = []
for group, (name, regex) in enumerate(rules, 1):
last_group = pattern.groups - 1
subpatterns.append(
SubPattern(pattern, [(SUBPATTERN, (group, parse(regex, flags,
pattern))), ]))
self.rules.append((name, last_group, pattern.groups - 1))
self._scanner = sre_compile(
SubPattern(pattern, [(BRANCH, (None, subpatterns))])).scanner
def create_subpattern(seq=None):
state = Pattern()
return SubPattern(state, seq)
