Parent Directory
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Revision Log
license and styling refinement
| 1 | wakaba | 1.1 | <!DOCTYPE HTML> |
| 2 | <html lang=en> | ||
| 3 | <head> | ||
| 4 | wakaba | 1.8 | <title>Live Scripting HTML Parser</title> |
| 5 | wakaba | 1.13 | <link rel=author href="http://suika.fam.cx/~wakaba/who?"> |
| 6 | <link rel=license href="http://suika.fam.cx/c/gnu/gpl" | ||
| 7 | title="GNU GPL2 or later"> | ||
| 8 | wakaba | 1.1 | <style> |
| 9 | wakaba | 1.13 | h1 { |
| 10 | margin: 0; | ||
| 11 | font-size: 150%; | ||
| 12 | } | ||
| 13 | h2 { | ||
| 14 | wakaba | 1.7 | margin: 0; |
| 15 | font-size: 100%; | ||
| 16 | } | ||
| 17 | wakaba | 1.13 | p { |
| 18 | margin: 0 1em; | ||
| 19 | wakaba | 1.7 | } |
| 20 | wakaba | 1.1 | textarea { |
| 21 | wakaba | 1.7 | width: 100%; |
| 22 | -width: 99%; | ||
| 23 | height: 10em; | ||
| 24 | wakaba | 1.1 | } |
| 25 | output { | ||
| 26 | display: block; | ||
| 27 | font-family: monospace; | ||
| 28 | wakaba | 1.4 | white-space: -moz-pre-wrap; |
| 29 | white-space: pre-wrap; | ||
| 30 | wakaba | 1.1 | } |
| 31 | </style> | ||
| 32 | <script> | ||
| 33 | wakaba | 1.7 | var delayedUpdater = 0; |
| 34 | |||
| 35 | wakaba | 1.1 | function update () { |
| 36 | wakaba | 1.7 | if (delayedUpdater) { |
| 37 | clearTimeout (delayedUpdater); | ||
| 38 | delayedUpdater = 0; | ||
| 39 | } | ||
| 40 | delayedUpdater = setTimeout (update2, 100); | ||
| 41 | } // update | ||
| 42 | |||
| 43 | function update2 () { | ||
| 44 | var v = document.sourceElement.value; | ||
| 45 | wakaba | 1.8 | if (v != document.previousSourceText) { |
| 46 | document.previousSourceText = v; | ||
| 47 | document.links['permalink'].href | ||
| 48 | = location.pathname + '?s=' + encodeURIComponent (v); | ||
| 49 | document.links['ldvlink'].href | ||
| 50 | = 'http://software.hixie.ch/utilities/js/live-dom-viewer/?' | ||
| 51 | + encodeURIComponent (v); | ||
| 52 | |||
| 53 | document.logElement.textContent = ''; | ||
| 54 | var p = new Parser (new InputStream (v)); | ||
| 55 | var doc = p.doc; | ||
| 56 | p.parse (); | ||
| 57 | wakaba | 1.10 | |
| 58 | wakaba | 1.8 | log (dumpTree (doc, '')); |
| 59 | wakaba | 1.10 | |
| 60 | if (p.hasAsyncScript) { | ||
| 61 | log ('Some script codes are executed asynchronously; it means that the document might be rendered in different ways depending on the network condition and other factors'); | ||
| 62 | } | ||
| 63 | wakaba | 1.8 | } |
| 64 | wakaba | 1.7 | } // update2 |
| 65 | wakaba | 1.1 | |
| 66 | wakaba | 1.6 | var logIndentLevel = 0; |
| 67 | wakaba | 1.1 | function log (s) { |
| 68 | wakaba | 1.6 | for (var i = 0; i < logIndentLevel; i++) { |
| 69 | s = ' ' + s; | ||
| 70 | } | ||
| 71 | wakaba | 1.1 | document.logElement.appendChild (document.createTextNode (s + "\n")); |
| 72 | } // log | ||
| 73 | |||
| 74 | function InputStream (s) { | ||
| 75 | this.s = s; | ||
| 76 | } // InputStream | ||
| 77 | |||
| 78 | wakaba | 1.4 | function Parser (i, doc) { |
| 79 | wakaba | 1.1 | this.parseMode = 'pcdata'; |
| 80 | wakaba | 1.4 | if (!doc) { |
| 81 | doc = new JSDocument (this); | ||
| 82 | doc.manakaiIsHTML = true; | ||
| 83 | } | ||
| 84 | this.doc = doc; | ||
| 85 | this.openElements = [doc]; | ||
| 86 | wakaba | 1.8 | this.input = i; |
| 87 | wakaba | 1.4 | this.scriptsExecutedAfterParsing = []; |
| 88 | wakaba | 1.10 | this.scriptsExecutedSoon = []; |
| 89 | wakaba | 1.12 | this.scriptsExecutedAsynchronously = []; |
| 90 | wakaba | 1.1 | } // Parser |
| 91 | |||
| 92 | wakaba | 1.2 | Parser.prototype.getNextToken = function () { |
| 93 | wakaba | 1.3 | var p = this; |
| 94 | wakaba | 1.8 | var i = this.input; |
| 95 | wakaba | 1.1 | if (this.parseMode == 'script') { |
| 96 | var token; | ||
| 97 | wakaba | 1.3 | if (p.insertionPoint <= 0) { |
| 98 | return {type: 'abort'}; | ||
| 99 | } | ||
| 100 | wakaba | 1.4 | i.s = i.s.replace (/^([^<]+)/, |
| 101 | wakaba | 1.1 | function (s, t) { |
| 102 | wakaba | 1.3 | if (0 < p.insertionPoint && p.insertionPoint < t.length) { |
| 103 | token = {type: 'char', value: t.substring (0, p.insertionPoint)}; | ||
| 104 | var ip = p.insertionPoint; | ||
| 105 | p.insertionPoint = 0; | ||
| 106 | wakaba | 1.4 | return t.substring (ip, t.length); |
| 107 | wakaba | 1.3 | } |
| 108 | wakaba | 1.1 | token = {type: 'char', value: t}; |
| 109 | wakaba | 1.4 | p.insertionPoint -= t.length; |
| 110 | return ''; | ||
| 111 | wakaba | 1.1 | }); |
| 112 | if (token) return token; | ||
| 113 | wakaba | 1.3 | i.s = i.s.replace (/^<\/[Ss][Cc][Rr][Ii][Pp][Tt]>/, function (s) { |
| 114 | wakaba | 1.4 | if (p.insertionPoint < s.length) { |
| 115 | wakaba | 1.3 | token = {type: 'abort'}; |
| 116 | return s; | ||
| 117 | } | ||
| 118 | wakaba | 1.1 | token = {type: 'end-tag', value: 'script'}; |
| 119 | wakaba | 1.3 | p.insertionPoint -= s.length; |
| 120 | wakaba | 1.1 | return ''; |
| 121 | }); | ||
| 122 | if (token) return token; | ||
| 123 | wakaba | 1.5 | var m; |
| 124 | if ((p.insertionPoint < '</script'.length) && | ||
| 125 | (m = i.s.match (/^<\/([SCRIPTscript]+)/))) { | ||
| 126 | var v = m[1].substring (0, p.insertionPoint).toLowerCase (); | ||
| 127 | if (v == 'script'.substring (0, p.insertionPoint - '</'.length)) { | ||
| 128 | return {type: 'abort'}; | ||
| 129 | } | ||
| 130 | } | ||
| 131 | wakaba | 1.4 | i.s = i.s.replace (/^</, |
| 132 | function (s) { | ||
| 133 | token = {type: 'char', value: s}; | ||
| 134 | p.insertionPoint -= s.length; | ||
| 135 | return ''; | ||
| 136 | }); | ||
| 137 | if (token) return token; | ||
| 138 | wakaba | 1.1 | return {type: 'eof'}; |
| 139 | } | ||
| 140 | |||
| 141 | var token; | ||
| 142 | wakaba | 1.5 | i.s = i.s.replace (/^<\/([^>]+)(?:>|$)/, function (s, e) { |
| 143 | if (p.insertionPoint < s.length || | ||
| 144 | (p.insertionPoint <= s.length && | ||
| 145 | s.substring (s.length - 1, 1) != '>')) { | ||
| 146 | wakaba | 1.3 | token = {type: 'abort'}; |
| 147 | return s; | ||
| 148 | } | ||
| 149 | wakaba | 1.1 | token = {type: 'end-tag', value: e.toLowerCase ()}; |
| 150 | wakaba | 1.3 | p.insertionPoint -= s.length; |
| 151 | wakaba | 1.1 | return ''; |
| 152 | }); | ||
| 153 | if (token) return token; | ||
| 154 | wakaba | 1.5 | i.s = i.s.replace (/^<([^>]+)(?:>|$)/, function (s, e) { |
| 155 | if (p.insertionPoint < s.length || | ||
| 156 | (p.insertionPoint <= s.length && | ||
| 157 | s.substring (s.length - 1, 1) != '>')) { | ||
| 158 | wakaba | 1.3 | token = {type: 'abort'}; |
| 159 | return s; | ||
| 160 | } | ||
| 161 | wakaba | 1.4 | var tagName; |
| 162 | var attrs = {}; | ||
| 163 | e = e.replace (/^[\S]+/, function (v) { | ||
| 164 | tagName = v.toLowerCase (); | ||
| 165 | return ''; | ||
| 166 | }); | ||
| 167 | wakaba | 1.9 | while (true) { |
| 168 | var m = false; | ||
| 169 | e = e.replace (/^\s*([^\s=]+)\s*(?:=\s*(?:"([^"]*)"|'([^']*)'|([^"'\s]*)))?/, | ||
| 170 | function (x, attrName, attrValue1, attrValue2, attrValue3) { | ||
| 171 | v = attrValue1 || attrValue2 || attrValue3; | ||