(source, pattern)
| 988 | return p |
| 989 | |
| 990 | def parse_template(source, pattern): |
| 991 | # parse 're' replacement string into list of literals and |
| 992 | # group references |
| 993 | s = Tokenizer(source) |
| 994 | sget = s.get |
| 995 | result = [] |
| 996 | literal = [] |
| 997 | lappend = literal.append |
| 998 | def addliteral(): |
| 999 | if s.istext: |
| 1000 | result.append(''.join(literal)) |
| 1001 | else: |
| 1002 | # The tokenizer implicitly decodes bytes objects as latin-1, we must |
| 1003 | # therefore re-encode the final representation. |
| 1004 | result.append(''.join(literal).encode('latin-1')) |
| 1005 | del literal[:] |
| 1006 | def addgroup(index, pos): |
| 1007 | if index > pattern.groups: |
| 1008 | raise s.error("invalid group reference %d" % index, pos) |
| 1009 | addliteral() |
| 1010 | result.append(index) |
| 1011 | groupindex = pattern.groupindex |
| 1012 | while True: |
| 1013 | this = sget() |
| 1014 | if this is None: |
| 1015 | break # end of replacement string |
| 1016 | if this[0] == "\\": |
| 1017 | # group |
| 1018 | c = this[1] |
| 1019 | if c == "g": |
| 1020 | if not s.match("<"): |
| 1021 | raise s.error("missing <") |
| 1022 | name = s.getuntil(">", "group name") |
| 1023 | if not (name.isdecimal() and name.isascii()): |
| 1024 | s.checkgroupname(name, 1) |
| 1025 | try: |
| 1026 | index = groupindex[name] |
| 1027 | except KeyError: |
| 1028 | raise IndexError("unknown group name %r" % name) from None |
| 1029 | else: |
| 1030 | index = int(name) |
| 1031 | if index >= MAXGROUPS: |
| 1032 | raise s.error("invalid group reference %d" % index, |
| 1033 | len(name) + 1) |
| 1034 | addgroup(index, len(name) + 1) |
| 1035 | elif c == "0": |
| 1036 | if s.next in OCTDIGITS: |
| 1037 | this += sget() |
| 1038 | if s.next in OCTDIGITS: |
| 1039 | this += sget() |
| 1040 | lappend(chr(int(this[1:], 8) & 0xff)) |
| 1041 | elif c in DIGITS: |
| 1042 | isoctal = False |
| 1043 | if s.next in DIGITS: |
| 1044 | this += sget() |
| 1045 | if (c in OCTDIGITS and this[2] in OCTDIGITS and |
| 1046 | s.next in OCTDIGITS): |
| 1047 | this += sget() |
nothing calls this directly
no test coverage detected