def _parse_escape(source, info, in_set):
saved_ignore = source.ignore_space
source.ignore_space = False
ch = source.get()
source.ignore_space = saved_ignore
if not ch:
return Character(0)
if ch == u"g" and not in_set:
here = source.pos
try:
return _parse_group_ref(source, info)
except RegexpError:
source.pos = here
return make_character(info, ord(ch[0]), in_set)
elif ch == u"G" and not in_set:
return AtPosition(AT_BEGINNING)
elif ch in u"pP":
return _parse_property(source, info, ch == u"p", in_set)
elif is_word(ord(ch[0])):
if not in_set:
if ch in POSITION_ESCAPES:
return POSITION_ESCAPES[ch]
if ch in CHARSET_ESCAPES:
return CHARSET_ESCAPES[ch]
elif ch in CHARACTER_ESCAPES:
return Character(ord(CHARACTER_ESCAPES[ch]))
return make_character(info, ord(ch[0]), in_set)
if is_digit(ord(ch[0])):
return _parse_numeric_escape(source, info, ch, in_set)
else:
return make_character(info, ord(ch[0]), in_set)
def _parse_escape(source, info, in_set):
saved_ignore = source.ignore_space
source.ignore_space = False
ch = source.get()
source.ignore_space = saved_ignore
if not ch:
raise RegexpError("bad escape")
if ch == u"g" and not in_set:
here = source.pos
try:
return _parse_group_ref(source, info)
except RegexpError:
source.pos = here
return make_character(info, ord(ch[0]), in_set)
elif ch == u"G" and not in_set:
return AtPosition(AT_BEGINNING)
elif ch in u"pP":
return _parse_property(source, info, ch == u"p", in_set)
elif is_word(ord(ch[0])):
if not in_set:
if ch in POSITION_ESCAPES:
return POSITION_ESCAPES[ch]
if ch in CHARSET_ESCAPES:
return CHARSET_ESCAPES[ch]
elif ch in CHARACTER_ESCAPES:
return Character(ord(CHARACTER_ESCAPES[ch]))
return make_character(info, ord(ch[0]), in_set)
if is_digit(ord(ch[0])):
return _parse_numeric_escape(source, info, ch, in_set)
else:
return make_character(info, ord(ch[0]), in_set)
def parse_number(source):
acc = 0
while not source.at_end():
oldpos = source.pos
ch = source.get()
if not rsre_char.is_digit(ord(ch[0])):
source.pos = oldpos
return acc
acc = 10 * acc + int(ch)
return acc
def parse_number(source):
acc = 0
while not source.at_end():
oldpos = source.pos
ch = source.get()
if not rsre_char.is_digit(ord(ch[0])):
source.pos = oldpos
return acc
acc = 10 * acc + int(ch)
return acc
def _parse_count(source):
b = UnicodeBuilder(2)
while True:
here = source.pos
ch = source.get()
if is_digit(ord(ch[0])):
b.append(ch)
else:
source.pos = here
break
return b.build()
def _parse_count(source):
b = UnicodeBuilder(2)
while True:
here = source.pos
ch = source.get()
if is_digit(ord(ch[0])):
b.append(ch)
else:
source.pos = here
break
return b.build()
def normalize_group(self, name):
if is_digit(ord(name[0])):
return int(name)
else:
return self.group_index[name]
def normalize_group(self, name):
if is_digit(ord(name[0])):
return int(name)
else:
return self.group_index[name]
