lexer.pushText("<a name='value' other='\n&amp; &apos;\n \"'>")
        lexer.visit(visitor)

        then:
        1 * visitor.onStartHtmlElement('a')
        1 * visitor.onHtmlElementAttribute('name', 'value')
        1 * visitor.onHtmlElementAttribute('other', '\n& \'\n \"')
        1 * visitor.onStartHtmlElementComplete('a')
        1 * visitor.onEnd()
        0 * visitor._
    }

     */
    void visit(TokenVisitor visitor);

    class TokenVisitor {
        void onStartHtmlElement(String name) {
        }

        void onHtmlElementAttribute(String name, String value) {
        }

        void onStartHtmlElementComplete(String name) {
        }

        void onEndHtmlElement(String name) {
        }

                }
            }
        }

        @Override
        public void onStartHtmlElement(String name) {
            attributes.clear();
        }

        @Override
        public void onHtmlElementAttribute(String name, String value) {
            attributes.put(name, value);
        }

        @Override
        public void onStartHtmlElementComplete(String name) {
            if (name.equals("li")) {

                } else {
                    attrValue.append(scanner.getFirst());
                    scanner.next();
                }
            }
            visitor.onHtmlElementAttribute(attrName, attrValue.toString());
            scanner.next();
            scanner.skip(WHITESPACE_WITH_EOL);
        }

        if (!isEnd) {
            visitor.onStartHtmlElementComplete(elementName);

            @Override
            void onStartHtmlElement(String name) {
                result.append("<$name")
            }

            @Override
            void onHtmlElementAttribute(String name, String value) {
                result.append(" $name='$value'")
            }

            @Override
            void onStartHtmlElementComplete(String name) {

            tagHandlers.add(handler);
        }

        @Override
        void onStartHtmlElement(String name) {
            attributes.clear();
        }

        @Override
        void onHtmlElementAttribute(String name, String value) {
            attributes.put(name, value);
        }

        @Override
        void onStartHtmlElementComplete(String name) {