def markupDeclarationOpenState()

in bleach/_vendor/html5lib/_tokenizer.py [0:0]
42 lines of code
15 McCabe index (conditional complexity)

    def markupDeclarationOpenState(self):
        charStack = [self.stream.char()]
        if charStack[-1] == "-":
            charStack.append(self.stream.char())
            if charStack[-1] == "-":
                self.currentToken = {"type": tokenTypes["Comment"], "data": ""}
                self.state = self.commentStartState
                return True
        elif charStack[-1] in ('d', 'D'):
            matched = True
            for expected in (('o', 'O'), ('c', 'C'), ('t', 'T'),
                             ('y', 'Y'), ('p', 'P'), ('e', 'E')):
                charStack.append(self.stream.char())
                if charStack[-1] not in expected:
                    matched = False
                    break
            if matched:
                self.currentToken = {"type": tokenTypes["Doctype"],
                                     "name": "",
                                     "publicId": None, "systemId": None,
                                     "correct": True}
                self.state = self.doctypeState
                return True
        elif (charStack[-1] == "[" and
              self.parser is not None and
              self.parser.tree.openElements and
              self.parser.tree.openElements[-1].namespace != self.parser.tree.defaultNamespace):
            matched = True
            for expected in ["C", "D", "A", "T", "A", "["]:
                charStack.append(self.stream.char())
                if charStack[-1] != expected:
                    matched = False
                    break
            if matched:
                self.state = self.cdataSectionState
                return True

        self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
                                "expected-dashes-or-doctype"})

        while charStack:
            self.stream.unget(charStack.pop())
        self.state = self.bogusCommentState
        return True