Declarative html parser
Convers HTML to JSON using simple schema.
Designed for avoiding writing a lot of similar code of parsers.
Installation
npm install dec-html-parser
Example
HTML page for parsing
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Page Title</title>
</head>
<body>
Date: <span class="date">2017-01-03</span>
<ul id="tag-list">
<li>tag1</li>
<li>tag2</li>
<li>tag3</li>
</ul>
<table id="author-table">
<tr>
<td><a href="/fill-davis">Fill Davis</a></td>
<td><span>AGE: 25</span></td>
<td><span>34 articles</span></td>
</tr>
<tr>
<td><a href="/nick-peterson">Nick Peterson</a></td>
<td><span>AGE: 31</span></td>
<td><span>110 articles</span></td>
</tr>
<tr>
<td><a href="/nick-peterson">July Mai</a></td>
<td><span>AGE: 18</span></td>
<td><span>3 articles</span></td>
</tr>
</table>
</body>
</html>const parser = require('dec-html-parser');
const schema = {
"page": {
"type": "single",
"props": {
"name": "title",
"tags": {
"type" : "collection",
"css" : "#tag-list li"
},
"authors" : {
"type" : "collection",
"css" : "#author-table tr",
"props" : {
"name" : ["td", ["eq", 0], ["find", "a"]],
"href" : ["td", ["eq", 0], ["find", "a"], ["attr", "href"]],
"age" : ["td", ["eq", 1], ["replace", "AGE: ", ""], "parseInt"],
"articles" : ["td", ["eq", 2], ["match", "([0-9]+)"], "shift"]
}
}
}
}
};
const html = 'html here';
const json = parser.parse(html, schema);
console.log(json);output
{
"page": {
"name": "Page Title",
"tags": ["tag1", "tag2", "tag3"],
"authors":[
{
"name": "Fill Davis",
"href": "/fill-davis",
"age": 25,
"articles": "34"
},
{
"name": "Nick Peterson",
"href": "/nick-peterson",
"age": 31,
"articles": "110"
},
{
"name": "July Mai",
"href": "/nick-peterson",
"age": 18,
"articles": "3"
}
]
}
}