html_xml_parser 0.0.1 
html_xml_parser: ^0.0.1 copied to clipboard
A Dart library for parsing HTML or XML into Dart objects, Map, json string and vice-versa.
A Dart library for parsing HTML or XML into Dart objects, Map, json string and vice-versa.
Usage #
To use this plugin, add html_xml_parser as a dependency in your pubspec.yaml file.
Library overview #
Checkout the Elements class to understand available elements.
* RootNode -> Start of the markup. It holds children.
* ElementNode -> tag should be specified(ex: div). Supports attributes and children.
* TextNode -> It is the text at appeares inside a HTML/Markup tag.
* CommentNode -> It is a comment that can be place in between elements,
* Attribute -> `Name`, `value` should be given. `valueOriginal` is optional, It is used in creating markup.
Checkout the MarkupUtils class which contains many utils for conversion.
* Node mapToNode(Map<String, dynamic> json)
* Node jsonToNode(String jsonString)
* Node markup2json(String markupString)
* String jsonToMarkup(String jsonString)
* String mapToMarkup(Map<String, dynamic> jsonMap)
Examples #
Markup to dart object #
Here Markup in string format is converted to dart object.
import 'package:html_xml_parser/html_xml_parser.dart';
main() {
var markup = """
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>title</title>
</head>
<body>
</body>
</html>
""";
Node node = MarkupUtils.markup2json(markup);
print(
node); //{"type":"root","children":[{"type":"element","tag":"html","children":[{"type":"element","tag":"head","children":[{"type":"element","tag":"meta","attributes":[{"name":"charset","value":"UTF-8","valueOriginal":"\"UTF-8\""}]},{"type":"element","tag":"title","children":[{"type":"text","text":"title"}]}]},{"type":"element","tag":"body"}]}]}
}
JSON to markup #
Convert JSON to markup. JSON should this type of syntax only.
import 'package:html_xml_parser/html_xml_parser.dart';
main() {
String jsonString = r"""
{
"type": "root",
"children": [{
"type": "element",
"tag": "html",
"children": [{
"type": "element",
"tag": "head",
"children": [{
"type": "element",
"tag": "meta",
"attributes": [{
"name": "charset",
"value": "UTF-8",
"valueOriginal": "\"UTF-8\""
}]
}, {
"type": "element",
"tag": "title",
"children": [{
"type": "text",
"text": "title"
}]
}]
}, {
"type": "element",
"tag": "body"
}]
}]
}
""";
String markup = MarkupUtils.jsonToMarkup(jsonString);
print(markup);//<html><head><meta charset="UTF-8"/><title>title</title></head><body/></html>
}
Create or edit markup #
Create or edit existing markup Node tree.
import 'package:html_xml_parser/html_xml_parser.dart';
main() {
Node node = RootNode([
ElementNode(tag: "message", children: [
ElementNode(tag: "text", children: [TextNode("Hello!!")]),
ElementNode(tag: "from", children: [TextNode("Manoj sadhu")]),
CommentNode("A simple comment")
])
]);
String markup = node.toMarKup();
print(markup); //<message><text>Hello!!</text><from>Manoj sadhu</from><!--A simple comment--></message>
node.children.add(
ElementNode(tag: "time", children: [TextNode("18-06-2019 09:18:00")]));
String editedMarkup = node.toMarKup();
print(editedMarkup); //<message><text>Hello!!</text><from>Manoj sadhu</from><!--A simple comment--></message><time>18-06-2019 09:18:00</time>
}
Features and bugs #
Please file feature requests and bugs.
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Metadata
A Dart library for parsing HTML or XML into Dart objects, Map, json string and vice-versa.
Repository (GitHub)
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License
BSD-3-Clause (LICENSE)
