xpath_selector_html_parser 3.0.1
xpath_selector_html_parser: ^3.0.1 copied to clipboard
A html parser implementation with html for xpath_selector, xpath_selector is required.
xpath_selector_html_parser #
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Usage #
There are three ways to create xpath queries:
- Use the
queryXPath
method directly on the htmlNode
- Use
HtmlXpath.node ([HtmlNode])
to create a query and then use thequery
method to perform the query - Use
HtmlXpath.html ([HtmlString])
to parse the HTML, and then usequery
to query
Example #
import 'package:html/parser.dart';
import 'package:xpath_selector_html_parser/src/ext.dart';
final String htmlString = '''
<html lang="en">
<body>
<div><a href='https://github.com/simonkimi'>author</a></div>
<div class="head">div head</div>
<div class="container">
<table>
<tbody>
<tr>
<td id="td1" class="first1">1</td>
<td id="td2" class="first1">2</td>
<td id="td3" class="first2">3</td>
<td id="td4" class="first2 form">4</td>
<td id="td5" class="second1">one</td>
<td id="td6" class="second1">two</td>
<td id="td7" class="second2">three</td>
<td id="td8" class="second2">four</td>
</tr>
</tbody>
</table>
</div>
<div class="end">end</div>
</body>
</html>
''';
void main() {
final html1 = parse(htmlString).documentElement!;
final html2 = HtmlXPath.node(html1);
final html3 = HtmlXPath.html(htmlString);
print(html1.queryXPath('//div/a'));
print(html2.query('//div/a/@href').attrs);
print(html3.query('//tr/td[@class^="fir" and not(text()="4")]'));
}
Hint #
- When parsing html, some nonstandard structures may change. For example, the missing
tbody
table will be added, which may lead to query problems.