Function addgroup

Lib/re/_parser.py:1005–1009

(index, pos)

            result.append(''.join(literal).encode('latin-1'))
        del literal[:]
    def addgroup(index, pos):
        if index > pattern.groups:
            raise s.error("invalid group reference %d" % index, pos)
        addliteral()
        result.append(index)
    groupindex = pattern.groupindex
    while True:
        this = sget()