dammit.py 文件源码

def _populate_class_variables():
        lookup = {}
        reverse_lookup = {}
        characters_for_re = []
        for codepoint, name in list(codepoint2name.items()):
            character = unichr(codepoint)
            if codepoint != 34:
                # There's no point in turning the quotation mark into
                # ", unless it happens within an attribute value, which
                # is handled elsewhere.
                characters_for_re.append(character)
                lookup[character] = name
            # But we do want to turn " into the quotation mark.
            reverse_lookup[name] = character
        re_definition = "[%s]" % "".join(characters_for_re)
        return lookup, reverse_lookup, re.compile(re_definition)