def make_ctx(self, w_string, pos=0, endpos=sys.maxint, flags=0):
"""Make a StrMatchContext, BufMatchContext or a UnicodeMatchContext for
searching in the given w_string object."""
space = self.space
length, unicodestr, string, buf = self.getstring(w_string)
if pos < 0:
pos = 0
elif pos > length:
pos = length
if endpos < pos:
endpos = pos
elif endpos > length:
endpos = length
flags = self.flags | flags
#
if unicodestr is not None:
if self.is_known_bytes():
raise oefmt(
space.w_TypeError,
"can't use a bytes pattern on a string-like "
"object")
return rsre_core.UnicodeMatchContext(unicodestr, pos, endpos,
flags)
else:
if self.is_known_unicode():
raise oefmt(
space.w_TypeError,
"can't use a string pattern on a bytes-like "
"object")
if string is not None:
return rsre_core.StrMatchContext(string, pos, endpos, flags)
else:
return rsre_core.BufMatchContext(buf, pos, endpos, flags)
def make_ctx(self, s, start, end):
self.ensure_compiled()
start, end = rsre_core._adjust(start, end, len(s))
if isinstance(s, unicode):
return rsre_core.UnicodeMatchContext(s, start, end, self.flags)
assert isinstance(s, str)
return rsre_core.StrMatchContext(s, start, end, self.flags)
def make_ctx(self, w_string, pos=0, endpos=sys.maxint):
"""Make a StrMatchContext, BufMatchContext or a UnicodeMatchContext for
searching in the given w_string object."""
space = self.space
if pos < 0:
pos = 0
if endpos < pos:
endpos = pos
if space.isinstance_w(w_string, space.w_unicode):
unicodestr = space.unicode_w(w_string)
if pos > len(unicodestr):
pos = len(unicodestr)
if endpos > len(unicodestr):
endpos = len(unicodestr)
return rsre_core.UnicodeMatchContext(self.code, unicodestr, pos,
endpos, self.flags)
elif space.isinstance_w(w_string, space.w_str):
str = space.str_w(w_string)
if pos > len(str):
pos = len(str)
if endpos > len(str):
endpos = len(str)
return rsre_core.StrMatchContext(self.code, str, pos, endpos,
self.flags)
else:
buf = space.readbuf_w(w_string)
size = buf.getlength()
assert size >= 0
if pos > size:
pos = size
if endpos > size:
endpos = size
return rsre_core.BufMatchContext(self.code, buf, pos, endpos,
self.flags)
def make_ctx(self, w_string, pos=0, endpos=sys.maxint):
"""Make a StrMatchContext, BufMatchContext or a Utf8MatchContext for
searching in the given w_string object."""
space = self.space
if pos < 0:
pos = 0
if endpos < pos:
endpos = pos
if space.isinstance_w(w_string, space.w_unicode):
if self.is_known_bytes():
raise oefmt(
space.w_TypeError,
"can't use a bytes pattern on a string-like "
"object")
w_unicode_obj = space.convert_arg_to_w_unicode(w_string)
utf8str = w_unicode_obj._utf8
length = w_unicode_obj._len()
if pos <= 0:
bytepos = 0
elif pos >= length:
bytepos = len(utf8str)
else:
bytepos = w_unicode_obj._index_to_byte(pos)
if endpos >= length:
endbytepos = len(utf8str)
else:
endbytepos = w_unicode_obj._index_to_byte(endpos)
if w_unicode_obj.is_ascii():
ctx = UnicodeAsciiMatchContext(utf8str, bytepos, endbytepos)
else:
ctx = rsre_utf8.Utf8MatchContext(utf8str, bytepos, endbytepos)
# we store the w_string on the ctx too, for
# W_SRE_Match.bytepos_to_charindex()
ctx.w_unicode_obj = w_unicode_obj
return ctx
elif self.is_known_unicode():
raise oefmt(space.w_TypeError,
"can't use a string pattern on a bytes-like "
"object")
elif space.isinstance_w(w_string, space.w_bytes):
string = space.bytes_w(w_string)
length = len(string)
if pos > length:
pos = length
if endpos > length:
endpos = length
return rsre_core.StrMatchContext(string, pos, endpos)
else:
buf = space.readbuf_w(w_string)
size = buf.getlength()
assert size >= 0
if pos > size:
pos = size
if endpos > size:
endpos = size
return rsre_core.BufMatchContext(buf, pos, endpos)
def matches(self, s, pos):
if not we_are_translated():
m = self.re.match(s, pos)
return Match(*m.span(0)) if m is not None else None
else:
assert pos >= 0
ctx = rsre_core.StrMatchContext(s, pos, len(s))
matched = rsre_core.match_context(ctx, self._pattern)
if matched:
return Match(ctx.match_start, ctx.match_end)
else:
return None
def make_ctx(self, s, offset=0):
assert offset >= 0
endpos = len(s)
return rsre_core.StrMatchContext(self.code, s, offset, endpos,
self.flags)
def _make_str_match_context(self, str, pos, endpos):
# for tests to override
return rsre_core.StrMatchContext(str, pos, endpos)
def regexp_match(cache, re, string):
pos = 0
endpos = len(string)
code, flags, _, _, _, _ = regexp.compile(cache, re)
return (rsre_core.StrMatchContext(string, pos, endpos,
flags), rsre_core.CompiledPattern(code))
def make_ctx(self, s, offset=0):
assert offset >= 0
endpos = len(s)
return (rsre_core.StrMatchContext(s, offset, endpos, self.flags),
rsre_core.CompiledPattern(self.code))
