| import 'package:html/dom.dart'; |
| import 'package:html/dom_parsing.dart'; |
| import 'package:html/parser.dart'; |
| |
| void main(List<String> args) { |
| var document = parse(''' |
| <body> |
| <h2>Header 1</h2> |
| <p>Text.</p> |
| <h2>Header 2</h2> |
| More text. |
| <br/> |
| </body>'''); |
| |
| // outerHtml output |
| print('outer html:'); |
| print(document.outerHtml); |
| |
| print(''); |
| |
| // visitor output |
| print('html visitor:'); |
| _Visitor().visit(document); |
| } |
| |
| // Note: this example visitor doesn't handle things like printing attributes and |
| // such. |
| class _Visitor extends TreeVisitor { |
| String indent = ''; |
| |
| @override |
| void visitText(Text node) { |
| if (node.data.trim().isNotEmpty) { |
| print('$indent${node.data.trim()}'); |
| } |
| } |
| |
| @override |
| void visitElement(Element node) { |
| if (isVoidElement(node.localName)) { |
| print('$indent<${node.localName}/>'); |
| } else { |
| print('$indent<${node.localName}>'); |
| indent += ' '; |
| visitChildren(node); |
| indent = indent.substring(0, indent.length - 2); |
| print('$indent</${node.localName}>'); |
| } |
| } |
| |
| @override |
| void visitChildren(Node node) { |
| for (var child in node.nodes) { |
| visit(child); |
| } |
| } |
| } |
