node-html-parser 0.1.1

Fast HTML parser for Rust & WASM producing a lightweight DOM with CSS selector querying.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77

use node_html_parser::parse;

#[test]
fn issue_84_query_selector_variations() {
	let root = parse("<a id=\"id\" data-id=\"myid\"><div><span class=\"a b\"></span><span></span><span></span></div></a>");
	let a = root.query_selector("a").unwrap();
	assert!(std::ptr::eq(root.query_selector("#id").unwrap(), a));
	let span_ab = a.query_selector("span.a").unwrap();
	assert!(std::ptr::eq(
		root.query_selector("span.a").unwrap(),
		span_ab
	));
	assert!(std::ptr::eq(
		root.query_selector("span.b").unwrap(),
		span_ab
	));
	assert!(std::ptr::eq(
		root.query_selector("span.a.b").unwrap(),
		span_ab
	));
	assert!(std::ptr::eq(
		root.query_selector("#id .b").unwrap(),
		span_ab
	));
	assert!(std::ptr::eq(
		root.query_selector("#id span").unwrap(),
		span_ab
	));
	assert!(std::ptr::eq(
		root.query_selector("[data-id=myid]").unwrap(),
		a
	));
	assert!(std::ptr::eq(
		root.query_selector("[data-id=\"myid\"]").unwrap(),
		a
	));
}

#[test]
fn issue_84_query_selector_all_variations() {
	let root =
		parse("<a id=\"id\"><div><span class=\"a b\"></span><span></span><span></span></div></a>");
	let a = root.query_selector("a").unwrap();
	let first_span = root.query_selector("span.a").unwrap();
	// 简单对比长度与指针身份（顺序）
	assert_eq!(root.query_selector_all("#id").len(), 1);
	assert!(std::ptr::eq(root.query_selector_all("#id")[0], a));
	assert!(std::ptr::eq(
		root.query_selector_all("span.a")[0],
		first_span
	));
	assert!(std::ptr::eq(
		root.query_selector_all("span.b")[0],
		first_span
	));
	assert!(std::ptr::eq(
		root.query_selector_all("span.a.b")[0],
		first_span
	));
	assert!(std::ptr::eq(
		root.query_selector_all("#id .b")[0],
		first_span
	));
	// #id span -> 3 spans
	assert_eq!(root.query_selector_all("#id span").len(), 3);
	// #id, #id .b -> 两个元素：a 与 第一个 span
	let combo = root.query_selector_all("#id, #id .b");
	assert_eq!(combo.len(), 2);
	assert!(std::ptr::eq(combo[0], a));
	assert!(std::ptr::eq(combo[1], first_span));

	// time/.date (去重) 情况
	let root2 = parse("<time class=\"date\">");
	let list = root2.query_selector_all("time,.date");
	assert_eq!(list.len(), 1);
	assert_eq!(list[0].name(), "time");
}