def beforeAttributeValueState()

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

    def beforeAttributeValueState(self):
        data = self.stream.char()
        if data in spaceCharacters:
            self.stream.charsUntil(spaceCharacters, True)
        elif data == "\"":
            self.state = self.attributeValueDoubleQuotedState
        elif data == "&":
            self.state = self.attributeValueUnQuotedState
            self.stream.unget(data)
        elif data == "'":
            self.state = self.attributeValueSingleQuotedState
        elif data == ">":
            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
                                    "expected-attribute-value-but-got-right-bracket"})
            self.emitCurrentToken()
        elif data == "\u0000":
            self.tokenQueue.append({"type": tokenTypes["ParseError"],
                                    "data": "invalid-codepoint"})
            self.currentToken["data"][-1][1] += "\uFFFD"
            self.state = self.attributeValueUnQuotedState
        elif data in ("=", "<", "`"):
            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
                                    "equals-in-unquoted-attribute-value"})
            self.currentToken["data"][-1][1] += data
            self.state = self.attributeValueUnQuotedState
        elif data is EOF:
            self.tokenQueue.append({"type": tokenTypes["ParseError"], "data":
                                    "expected-attribute-value-but-got-eof"})
            self.state = self.dataState
        else:
            self.currentToken["data"][-1][1] += data
            self.state = self.attributeValueUnQuotedState
        return True