html 实例源码
实例源码：
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<!DOCTYPE html>2
<html>3
<head>4
<meta charset="utf-8">5
<title>时代Java与您共同学习(NowJava.com)</title>6
<script src="https://cdn.staticfile.org/jquery/2.2.0/jquery.min.js"></script>7
</head>8
<body>9
10
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<script>12
$(function() {13
var panything = "[\\w\\W]*?",14
// 空白15
pspace = "[\\x20\\t\\r\\n\\f]",16
17
// 标签结尾(whitespace or greater-than)18
pnameEnd = pspace.replace( "]", ">]" ),19
20
// 标签名 21
// https://html.spec.whatwg.org/multipage/syntax.html#tag-open-state22
// https://html.spec.whatwg.org/multipage/syntax.html#tag-name-state23
pname = "[a-z]" + pnameEnd.replace( "[", "[^/\\0" ) + "*",24
25
// 空元素 26
// https://html.spec.whatwg.org/multipage/syntax.html#void-elements27
pvoidName = "(?:area|base|br|col|embed|hr|img|input|keygen|link|menuitem|meta|param|" +28
"source|track|wbr)(?=" + pnameEnd + ")",29
30
// 属性 31
// https://html.spec.whatwg.org/multipage/syntax.html#attributes-232
pattrs = "(?:" + pspace + "+[^\\0-\\x20\\x7f-\\x9f=\"'/>]+(?:" + pspace + "*=" + pspace +33
"*(?:\"" + panything + "\"|'" + panything + "'|" +34
pnameEnd.replace( "[", "[^" ) + "*(?!/)" +35
")|))*" + pspace + "*",36
37
// 关闭标签的尾随内容38
pcloseTail = "(?:" + pspace + panything + "|)",39
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rspecialHtml = new RegExp(41
// 自关闭的非空元素: $1–$542
"(<)(?!" + pvoidName + ")(" + pname + ")(" + pattrs + ")(\\/)(>)|" +43
// 非 HTML容器 (element, comment, 或者 CDATA): $644
"(<(script|style|textarea)" + pattrs + ">" + panything + "<\\/\\7" + pcloseTail + ">|" +45
"<!--" + panything + "--)",46
"gi"47
),48
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