def search(self, string, pos=0, endpos=sys.maxint):
"""Scan through string looking for a location where this regular
expression produces a match, and return a corresponding MatchObject
instance. Return None if no position in the string matches the
pattern."""
state = _sre._State(string, pos, endpos, self.flags)
if _sre._search(state, self._code):
return SRE_Match(self, state)
else:
return None
def search(self, string, pos=0, endpos=sys.maxint):
"""Scan through string looking for a location where this regular
expression produces a match, and return a corresponding MatchObject
instance. Return None if no position in the string matches the
pattern."""
state = _sre._State(string, pos, endpos, self.flags)
if _sre._search(state, self._code):
return SRE_Match(self, state)
else:
return None
def subn(self, repl, string, count=0):
"""Return the tuple (new_string, number_of_subs_made) found by replacing
the leftmost non-overlapping occurrences of pattern with the replacement
repl."""
filter = repl
if not callable(repl) and "\\" in repl:
# handle non-literal strings ; hand it over to the template compiler
import re
filter = re._subx(self, repl)
state = _sre._State(string, 0, sys.maxint, self.flags)
sublist = []
need_unicode = (isinstance(string, unicode)
or isinstance(repl, unicode))
n = last_pos = 0
while not count or n < count:
state.reset()
if not _sre._search(state, self._code):
break
if last_pos < state.start:
sublist.append(string[last_pos:state.start])
if not (last_pos == state.start
and last_pos == state.string_position and n > 0):
# the above ignores empty matches on latest position
if callable(filter):
to_app = filter(SRE_Match(self, state))
else:
to_app = filter
if isinstance(to_app, unicode):
need_unicode = True
sublist.append(to_app)
last_pos = state.string_position
n += 1
if state.string_position == state.start:
state.start += 1
else:
state.start = state.string_position
if last_pos < state.end:
sublist.append(string[last_pos:state.end])
if n == 0:
# not just an optimization -- see test_sub_unicode
return string, n
if need_unicode:
item = u"".join(sublist)
else:
item = "".join(sublist)
return item, n
def subn(self, repl, string, count=0):
"""Return the tuple (new_string, number_of_subs_made) found by replacing
the leftmost non-overlapping occurrences of pattern with the replacement
repl."""
filter = repl
if not callable(repl) and "\\" in repl:
# handle non-literal strings ; hand it over to the template compiler
import re
filter = re._subx(self, repl)
state = _sre._State(string, 0, sys.maxint, self.flags)
sublist = []
need_unicode = (isinstance(string, unicode) or
isinstance(repl, unicode))
n = last_pos = 0
while not count or n < count:
state.reset()
if not _sre._search(state, self._code):
break
if last_pos < state.start:
sublist.append(string[last_pos:state.start])
if not (last_pos == state.start and
last_pos == state.string_position and n > 0):
# the above ignores empty matches on latest position
if callable(filter):
to_app = filter(SRE_Match(self, state))
else:
to_app = filter
if isinstance(to_app, unicode):
need_unicode = True
sublist.append(to_app)
last_pos = state.string_position
n += 1
if state.string_position == state.start:
state.start += 1
else:
state.start = state.string_position
if last_pos < state.end:
sublist.append(string[last_pos:state.end])
if n == 0:
# not just an optimization -- see test_sub_unicode
return string, n
if need_unicode:
item = u"".join(sublist)
else:
item = "".join(sublist)
return item, n
def findall(self, string, pos=0, endpos=sys.maxint):
"""Return a list of all non-overlapping matches of pattern in string."""
matchlist = []
state = _sre._State(string, pos, endpos, self.flags)
while state.start <= state.end:
state.reset()
if not _sre._search(state, self._code):
break
match = SRE_Match(self, state)
if self.groups == 0 or self.groups == 1:
item = match.group(self.groups)
else:
item = match.groups("")
matchlist.append(item)
if state.string_position == state.start:
state.start += 1
else:
state.start = state.string_position
return matchlist
def findall(self, string, pos=0, endpos=sys.maxint):
"""Return a list of all non-overlapping matches of pattern in string."""
matchlist = []
state = _sre._State(string, pos, endpos, self.flags)
while state.start <= state.end:
state.reset()
if not _sre._search(state, self._code):
break
match = SRE_Match(self, state)
if self.groups == 0 or self.groups == 1:
item = match.group(self.groups)
else:
item = match.groups("")
matchlist.append(item)
if state.string_position == state.start:
state.start += 1
else:
state.start = state.string_position
return matchlist
def split(self, string, maxsplit=0):
"""Split string by the occurrences of pattern."""
splitlist = []
state = _sre._State(string, 0, sys.maxint, self.flags)
n = 0
last = state.start
while not maxsplit or n < maxsplit:
state.reset()
if not _sre._search(state, self._code):
break
if state.start == state.string_position: # zero-width match
if last == state.end: # or end of string
break
state.start += 1
continue
splitlist.append(string[last:state.start])
# add groups (if any)
if self.groups:
match = SRE_Match(self, state)
splitlist.extend(list(match.groups(None)))
n += 1
last = state.start = state.string_position
splitlist.append(string[last:state.end])
return splitlist
def split(self, string, maxsplit=0):
"""Split string by the occurrences of pattern."""
splitlist = []
state = _sre._State(string, 0, sys.maxint, self.flags)
n = 0
last = state.start
while not maxsplit or n < maxsplit:
state.reset()
if not _sre._search(state, self._code):
break
if state.start == state.string_position: # zero-width match
if last == state.end: # or end of string
break
state.start += 1
continue
splitlist.append(string[last:state.start])
# add groups (if any)
if self.groups:
match = SRE_Match(self, state)
splitlist.extend(list(match.groups(None)))
n += 1
last = state.start = state.string_position
splitlist.append(string[last:state.end])
return splitlist
