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dreemgl

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DreemGL is an open-source multi-screen prototyping framework for mediated environments, with a visual editor and shader styling for webGL and DALi runtimes written in JavaScript. As a toolkit for gpu-accelerated multiscreen development, DreemGL includes

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<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>CodeRay output</title> <style type="text/css"> .CodeRay .line-numbers a { text-decoration: inherit; color: inherit; } body { background-color: white; padding: 0; margin: 0; } .CodeRay { background-color: hsl(0,0%,95%); border: 1px solid silver; color: black; } .CodeRay pre { margin: 0px; } span.CodeRay { white-space: pre; border: 0px; padding: 2px; } table.CodeRay { border-collapse: collapse; width: 100%; padding: 2px; } table.CodeRay td { padding: 2px 4px; vertical-align: top; } .CodeRay .line-numbers { background-color: hsl(180,65%,90%); color: gray; text-align: right; -webkit-user-select: none; -moz-user-select: none; user-select: none; } .CodeRay .line-numbers a { background-color: hsl(180,65%,90%) !important; color: gray !important; text-decoration: none !important; } .CodeRay .line-numbers pre { word-break: normal; } .CodeRay .line-numbers a:target { color: blue !important; } .CodeRay .line-numbers .highlighted { color: red !important; } .CodeRay .line-numbers .highlighted a { color: red !important; } .CodeRay span.line-numbers { padding: 0px 4px; } .CodeRay .line { display: block; float: left; width: 100%; } .CodeRay .code { width: 100%; } .CodeRay .debug { color: white !important; background: blue !important; } .CodeRay .annotation { color:#007 } .CodeRay .attribute-name { color:#b48 } .CodeRay .attribute-value { color:#700 } .CodeRay .binary { color:#549 } .CodeRay .binary .char { color:#325 } .CodeRay .binary .delimiter { color:#325 } .CodeRay .char { color:#D20 } .CodeRay .char .content { color:#D20 } .CodeRay .char .delimiter { color:#710 } .CodeRay .class { color:#B06; font-weight:bold } .CodeRay .class-variable { color:#369 } .CodeRay .color { color:#0A0 } .CodeRay .comment { color:#777 } .CodeRay .comment .char { color:#444 } .CodeRay .comment .delimiter { color:#444 } .CodeRay .constant { color:#036; font-weight:bold } .CodeRay .decorator { color:#B0B } .CodeRay .definition { color:#099; font-weight:bold } .CodeRay .delimiter { color:black } .CodeRay .directive { color:#088; font-weight:bold } .CodeRay .docstring { color:#D42; } .CodeRay .doctype { color:#34b } .CodeRay .done { text-decoration: line-through; color: gray } .CodeRay .entity { color:#800; font-weight:bold } .CodeRay .error { color:#F00; background-color:#FAA } .CodeRay .escape { color:#666 } .CodeRay .exception { color:#C00; font-weight:bold } .CodeRay .float { color:#60E } .CodeRay .function { color:#06B; font-weight:bold } .CodeRay .function .delimiter { color:#024; font-weight:bold } .CodeRay .global-variable { color:#d70 } .CodeRay .hex { color:#02b } .CodeRay .id { color:#33D; font-weight:bold } .CodeRay .include { color:#B44; font-weight:bold } .CodeRay .inline { background-color: hsla(0,0%,0%,0.07); color: black } .CodeRay .inline-delimiter { font-weight: bold; color: #666 } .CodeRay .instance-variable { color:#33B } .CodeRay .integer { color:#00D } .CodeRay .imaginary { color:#f00 } .CodeRay .important { color:#D00 } .CodeRay .key { color: #606 } .CodeRay .key .char { color: #60f } .CodeRay .key .delimiter { color: #404 } .CodeRay .keyword { color:#080; font-weight:bold } .CodeRay .label { color:#970; font-weight:bold } .CodeRay .local-variable { color:#950 } .CodeRay .map .content { color:#808 } .CodeRay .map .delimiter { color:#40A} .CodeRay .map { background-color:hsla(200,100%,50%,0.06); } .CodeRay .namespace { color:#707; font-weight:bold } .CodeRay .octal { color:#40E } .CodeRay .operator { } .CodeRay .predefined { color:#369; font-weight:bold } .CodeRay .predefined-constant { color:#069 } .CodeRay .predefined-type { color:#0a8; font-weight:bold } .CodeRay .preprocessor { color:#579 } .CodeRay .pseudo-class { color:#00C; font-weight:bold } .CodeRay .regexp { background-color:hsla(300,100%,50%,0.06); } .CodeRay .regexp .content { color:#808 } .CodeRay .regexp .delimiter { color:#404 } .CodeRay .regexp .modifier { color:#C2C } .CodeRay .reserved { color:#080; font-weight:bold } .CodeRay .shell { background-color:hsla(120,100%,50%,0.06); } .CodeRay .shell .content { color:#2B2 } .CodeRay .shell .delimiter { color:#161 } .CodeRay .string { background-color:hsla(0,100%,50%,0.05); } .CodeRay .string .char { color: #b0b } .CodeRay .string .content { color: #D20 } .CodeRay .string .delimiter { color: #710 } .CodeRay .string .modifier { color: #E40 } .CodeRay .symbol { color:#A60 } .CodeRay .symbol .content { color:#A60 } .CodeRay .symbol .delimiter { color:#740 } .CodeRay .tag { color:#070; font-weight:bold } .CodeRay .type { color:#339; font-weight:bold } .CodeRay .value { color: #088 } .CodeRay .variable { color:#037 } .CodeRay .insert { background: hsla(120,100%,50%,0.12) } .CodeRay .delete { background: hsla(0,100%,50%,0.12) } .CodeRay .change { color: #bbf; background: #007 } .CodeRay .head { color: #f8f; background: #505 } .CodeRay .head .filename { color: white; } .CodeRay .delete .eyecatcher { background-color: hsla(0,100%,50%,0.2); border: 1px solid hsla(0,100%,45%,0.5); margin: -1px; border-bottom: none; border-top-left-radius: 5px; border-top-right-radius: 5px; } .CodeRay .insert .eyecatcher { background-color: hsla(120,100%,50%,0.2); border: 1px solid hsla(120,100%,25%,0.5); margin: -1px; border-top: none; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; } .CodeRay .insert .insert { color: #0c0; background:transparent; font-weight:bold } .CodeRay .delete .delete { color: #c00; background:transparent; font-weight:bold } .CodeRay .change .change { color: #88f } .CodeRay .head .head { color: #f4f } .CodeRay { border: none; } </style> </head> <body> <table class="CodeRay"><tr> <td class="line-numbers"><pre><a href="#n1" name="n1">1</a> <a href="#n2" name="n2">2</a> <a href="#n3" name="n3">3</a> <a href="#n4" name="n4">4</a> <a href="#n5" name="n5">5</a> <a href="#n6" name="n6">6</a> <a href="#n7" name="n7">7</a> <a href="#n8" name="n8">8</a> <a href="#n9" 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Copyright 2015-2016 Teeming Society. Licensed under the Apache License, Version 2.0 (the &quot;License&quot;); You may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.*/</span> define.<span class="reserved">class</span>(<span class="string"><span class="delimiter">'</span><span class="content">./jsviewer</span><span class="delimiter">'</span></span>, <span class="keyword">function</span>(require, baseclass, <span class="predefined">$ui$</span>, textbox, label){ <span class="local-variable">this</span>.readonly = <span class="predefined-constant">false</span> <span class="keyword">var</span> enumchange = <span class="local-variable">this</span>.enumchange <span class="local-variable">this</span>.<span class="function">init</span> = <span class="keyword">function</span>(){ } <span class="local-variable">this</span>.format_options = { <span class="key">force_newlines_array</span>:<span class="predefined-constant">false</span>, <span class="key">force_newlines_object</span>:<span class="predefined-constant">false</span> } <span class="comment">// process inserts with matching parens</span> <span class="local-variable">this</span>.<span class="function">processInsert</span> = <span class="keyword">function</span>(lo, hi, text){ <span class="keyword">var</span> cdelta = <span class="integer">0</span> <span class="keyword">if</span>(<span class="local-variable">this</span>.error_state) <span class="keyword">return</span> [text, <span class="integer">0</span>] <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) === <span class="integer">9</span>){ cdelta += <span class="integer">1</span> } <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">&quot;</span><span class="delimiter">'</span></span>){ <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) == <span class="integer">34</span>) text = <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>, cdelta += <span class="integer">1</span> <span class="keyword">else</span> text +=<span class="string"><span class="delimiter">'</span><span class="content">&quot;</span><span class="delimiter">'</span></span>, cdelta -= <span class="integer">1</span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">&quot;</span><span class="content">'</span><span class="delimiter">&quot;</span></span>){ <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) == <span class="integer">39</span>) text = <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>, cdelta += <span class="integer">1</span> <span class="keyword">else</span> text +=<span class="string"><span class="delimiter">&quot;</span><span class="content">'</span><span class="delimiter">&quot;</span></span>, cdelta -= <span class="integer">1</span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">)</span><span class="delimiter">'</span></span>){ <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) == <span class="integer">41</span>) text = <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>, cdelta += <span class="integer">1</span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">]</span><span class="delimiter">'</span></span>){ <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) == <span class="integer">93</span>) text = <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>, cdelta += <span class="integer">1</span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">}</span><span class="delimiter">'</span></span>){ <span class="comment">// do a forward scan</span> <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) === <span class="integer">10</span> &amp;&amp; <span class="local-variable">this</span>.textbuf.charCodeAt(lo+<span class="integer">1</span>) === <span class="integer">9</span> &amp;&amp; <span class="local-variable">this</span>.textbuf.charCodeAt(lo+<span class="integer">2</span>) == <span class="integer">125</span>){ text = <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>, cdelta = <span class="integer">0</span> } <span class="keyword">else</span> <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(lo) == <span class="integer">125</span>) text = <span class="string"><span class="delimiter">'</span><span class="delimiter">'</span></span>, cdelta += <span class="integer">1</span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">(</span><span class="delimiter">'</span></span>){ cdelta -= <span class="integer">1</span> text += <span class="string"><span class="delimiter">'</span><span class="content">)</span><span class="delimiter">'</span></span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">[</span><span class="delimiter">'</span></span>){ cdelta -= <span class="integer">1</span> text += <span class="string"><span class="delimiter">'</span><span class="content">]</span><span class="delimiter">'</span></span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">{</span><span class="delimiter">'</span></span>){ <span class="keyword">if</span>(lo != hi){ <span class="comment">// do something special</span> } cdelta -= <span class="integer">1</span> text += <span class="string"><span class="delimiter">'</span><span class="content">}</span><span class="delimiter">'</span></span> } <span class="keyword">else</span> <span class="keyword">if</span>(text == <span class="string"><span class="delimiter">'</span><span class="content">\n</span><span class="delimiter">'</span></span>){ <span class="comment">// autoindent code</span> <span class="keyword">var</span> i = hi <span class="keyword">var</span> state = <span class="integer">0</span> <span class="keyword">var</span> indent = <span class="integer">0</span> <span class="keyword">var</span> split = <span class="integer">0</span> <span class="keyword">while</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(i) !== <span class="integer">9</span> &amp;&amp; i &gt;= <span class="integer">0</span>){ i-- } <span class="keyword">while</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(i) === <span class="integer">9</span>){ i-- indent++ } text += Array(indent + <span class="integer">1</span>).join(<span class="string"><span class="delimiter">'</span><span class="content">\t</span><span class="delimiter">'</span></span>) } <span class="keyword">return</span> [text, cdelta] } <span class="comment">// some patching up</span> <span class="local-variable">this</span>.<span class="function">stripNextOnBackspace</span> = <span class="keyword">function</span>(pos){ <span class="keyword">return</span> <span class="predefined-constant">false</span> <span class="comment">//ch = this.textbuf.charCodeAt(pos)</span> <span class="comment">//if(ch == 91 &amp;&amp; this.textbuf.charCodeAt(pos+1) == 93) return true</span> <span class="comment">//if(ch == 123 &amp;&amp; this.textbuf.charCodeAt(pos+1) == 125) return true</span> <span class="comment">//if(ch == 40 &amp;&amp; this.textbuf.charCodeAt(pos+1) == 41) return true</span> <span class="comment">//return false</span> } <span class="local-variable">this</span>.<span class="function">update_force</span> = <span class="keyword">function</span>(){ <span class="local-variable">this</span>.change_timeout = <span class="predefined-constant">undefined</span> baseclass.cursorsChanged.call(<span class="local-variable">this</span>) <span class="local-variable">this</span>.redraw() } <span class="comment">// the change event</span> <span class="local-variable">this</span>.change_id = <span class="integer">0</span> <span class="local-variable">this</span>.change_timeout = <span class="integer">0</span> <span class="local-variable">this</span>.<span class="function">textChanged</span> = <span class="keyword">function</span>(){ baseclass.textChanged.call(<span class="local-variable">this</span>, <span class="predefined-constant">true</span>) <span class="local-variable">this</span>.worker.postMessage({<span class="key">change_id</span>:++<span class="local-variable">this</span>.change_id, <span class="key">format_options</span>:<span class="local-variable">this</span>.format_options, <span class="key">source</span>:<span class="local-variable">this</span>._value}) <span class="keyword">if</span>(<span class="local-variable">this</span>.change_timeout) <span class="keyword">return</span> <span class="local-variable">this</span>.change_timeout = <span class="local-variable">this</span>.setTimeout(<span class="local-variable">this</span>.update_force, <span class="integer">30</span>) } <span class="local-variable">this</span>.<span class="function">cursorsChanged</span> = <span class="keyword">function</span>(){ <span class="keyword">if</span>(!<span class="local-variable">this</span>.change_timeout){ baseclass.cursorsChanged.call(<span class="local-variable">this</span>) <span class="keyword">if</span>(<span class="local-variable">this</span>.format_dirty){ <span class="local-variable">this</span>.change = <span class="string"><span class="delimiter">&quot;</span><span class="content">cursor</span><span class="delimiter">&quot;</span></span> <span class="local-variable">this</span>.worker.postMessage({<span class="key">change_id</span>:++<span class="local-variable">this</span>.change_id, <span class="key">format_options</span>:<span class="local-variable">this</span>.format_options, <span class="key">source</span>:<span class="local-variable">this</span>._value}) } } <span class="comment">//this.change_timeout = this.setTimeout(this.update_force, 30)</span> } <span class="comment">// we can skip tabs</span> <span class="local-variable">this</span>.<span class="function">atMoveLeft</span> = <span class="keyword">function</span>(pos){ <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(pos) === <span class="integer">10</span>) <span class="keyword">return</span> pos - <span class="integer">1</span> <span class="keyword">return</span> pos } <span class="local-variable">this</span>.<span class="function">atMoveRight</span> = <span class="keyword">function</span>(pos){ <span class="keyword">if</span>(<span class="local-variable">this</span>.textbuf.charCodeAt(pos) === <span class="integer">9</span>) <span class="keyword">return</span> pos + <span class="integer">1</span> <span class="keyword">return</span> pos } <span class="comment">// alright lets make a worker that parses and reserializes</span> <span class="keyword">var</span> worker = define.<span class="reserved">class</span>(<span class="string"><span class="delimiter">'</span><span class="content">$system/rpc/worker</span><span class="delimiter">'</span></span>, <span class="keyword">function</span>(require){ <span class="keyword">var</span> Parser = require(<span class="string"><span class="delimiter">'</span><span class="content">$system/parse/onejsparser</span><span class="delimiter">'</span></span>) <span class="keyword">var</span> JSFormatter = require(<span class="string"><span class="delimiter">'</span><span class="content">$system/parse/jsformatter</span><span class="delimiter">'</span></span>) <span class="local-variable">this</span>.<span class="function">onmessage</span> = <span class="keyword">function</span>(msg){ <span class="comment">// lets start a parse!</span> <span class="keyword">try</span>{ <span class="keyword">var</span> ast = Parser.parse(msg.source) } <span class="keyword">catch</span>(e){ <span class="local-variable">this</span>.postMessage({<span class="key">error</span>:e.message, <span class="key">pos</span>:e.pos}) <span class="keyword">return</span> } <span class="comment">// ok now we need to reserialize from ast</span> <span class="keyword">var</span> buf = { <span class="key">out</span>:vec4.array(msg.source.length + <span class="integer">100</span>), <span class="function">charCodeAt</span>: <span class="keyword">function</span>(i){<span class="keyword">return</span> <span class="local-variable">this</span>.out.array[i*<span class="integer">4</span>]}, <span class="key">char_count</span>:<span class="integer">0</span>, <span class="key">walk_id</span>:<span class="integer">0</span> }; <span class="comment">// lets reserialize output</span> <span class="keyword">var</span> out = buf.out JSFormatter.walk(ast, buf, msg.format_options, <span class="keyword">function</span>(text, padding, l1, l2, l3, node){ <span class="keyword">if</span>(text === <span class="string"><span class="delimiter">'</span><span class="content">\n</span><span class="delimiter">'</span></span>){ <span class="local-variable">this</span>.last_is_newline = <span class="predefined-constant">true</span> <span class="keyword">return</span> } <span class="keyword">if</span>(text === <span class="string"><span class="delimiter">'</span><span class="content">\t</span><span class="delimiter">'</span></span> &amp;&amp; <span class="local-variable">this</span>.last_is_newline){ text = <span class="string"><span class="delimiter">'</span><span class="content">\n</span><span class="delimiter">'</span></span> } <span class="local-variable">this</span>.last_is_newline = <span class="predefined-constant">false</span> out.ensureSize(out.length + text.length) <span class="keyword">var</span> o = out.length <span class="keyword">var</span> first = text.charCodeAt(<span class="integer">0</span>) <span class="keyword">if</span>(first !== <span class="integer">32</span> &amp;&amp; first !== <span class="integer">9</span> &amp;&amp; first !== <span class="integer">10</span>) buf.walk_id++ <span class="keyword">for</span>(<span class="keyword">var</span> i = <span class="integer">0</span>; i &lt; text.length; i++){ <span class="keyword">var</span> v = o * <span class="integer">4</span> + i * <span class="integer">4</span> out.array[v] = text.charCodeAt(i) out.array[v + <span class="integer">1</span>] = ((padding||<span class="integer">0</span>) + <span class="local-variable">this</span>.actual_indent*<span class="integer">65536</span>)*-<span class="integer">1</span> <span class="keyword">if</span>(l1 &lt; <span class="integer">0</span>) out.array[v + <span class="integer">2</span>] = l1 <span class="keyword">else</span> out.array[v + <span class="integer">2</span>] = <span class="integer">65536</span> * (l1||<span class="integer">0</span>) + <span class="integer">256</span> * (l2||<span class="integer">0</span>) + (l3||<span class="integer">0</span>) out.array[v + <span class="integer">3</span>] = buf.walk_id + <span class="integer">65536</span>*<span class="local-variable">this</span>.actual_line } out.length += text.length buf.char_count += text.length; }) <span class="local-variable">this</span>.postMessage({<span class="key">length</span>:buf.out.length, <span class="key">change_id</span>: msg.change_id, <span class="key">array</span>:buf.out.array}, [buf.out.array.buffer]) } }) <span class="local-variable">this</span>.<span class="function">oninit</span> = <span class="keyword">function</span>(prev){ <span class="local-variable">this</span>.worker = prev &amp;&amp; prev.worker || worker() <span class="comment">// if we get source back yay</span> <span class="local-variable">this</span>.worker.<span class="function">onmessage</span> = <span class="keyword">function</span>(msg){ <span class="keyword">var</span> mesh = <span class="local-variable">this</span>.shaders.typeface.mesh <span class="keyword">if</span>(<span class="local-variable">this</span>.change_timeout){ <span class="local-variable">this</span>.clearTimeout(<span class="local-variable">this</span>.change_timeout) <span class="local-variable">this</span>.update_force() } <span class="comment">//return</span> <span class="keyword">var</span> err = <span class="local-variable">this</span>.find(<span class="string"><span class="delimiter">'</span><span class="content">error</span><span class="delimiter">'</span></span>) <span class="keyword">if</span>(msg.error){ <span class="keyword">var</span> rect = mesh.cursorRect(msg.pos) err.x = rect.x err.y = rect.y + rect.h + <span class="integer">4</span> err.text = <span class="string"><span class="delimiter">'</span><span class="content">^</span><span class="delimiter">'</span></span>+msg.error err.visible = <span class="predefined-constant">true</span> <span class="local-variable">this</span>.error_state = <span class="predefined-constant">true</span> <span class="keyword">return</span> } <span class="keyword">else</span>{ <span class="local-variable">this</span>.error_state = <span class="predefined-constant">false</span> <span class="keyword">if</span>(err._visible) err.visible = <span class="predefined-constant">false</span> } <span class="keyword">if</span>(msg.change_id !== <span class="local-variable">this</span>.change_id) <span class="keyword">return</span> <span class="comment">// toss it, its too late.</span> <span class="keyword">var</span> dt = Date.now() <span class="keyword">var</span> start = <span class="integer">0</span> <span class="keyword">var</span> data_new = msg.array <span class="keyword">var</span> data_old = mesh.array <span class="keyword">var</span> len_new = msg.length <span class="keyword">var</span> len_old = mesh.length / <span class="integer">6</span> <span class="keyword">for</span>(;start &lt; len_new &amp;&amp; start &lt; len_old; start++){ <span class="keyword">var</span> off_old = start * <span class="integer">10</span> * <span class="integer">6</span> <span class="keyword">var</span> off_new = start * <span class="integer">4</span> <span class="keyword">if</span>(data_new[off_new] !== data_old[off_old + <span class="integer">6</span>]) <span class="keyword">break</span> <span class="keyword">if</span>(data_new[off_new+<span class="integer">1</span>] !== data_old[off_old + <span class="integer">7</span>]) <span class="keyword">break</span> <span class="comment">//if(data_new[off_new+2] !== data_old[off_old + 8]) break</span> <span class="comment">//if(data_new[off_new+3] !== data_old[off_old + 9]) break</span> <span class="comment">// copy data over</span> data_old[off_old + <span class="integer">7</span>] = data_old[off_old + <span class="integer">17</span>] = data_old[off_old + <span class="integer">27</span>] = data_old[off_old + <span class="integer">37</span>] = data_old[off_old + <span class="integer">47</span>] = data_old[off_old + <span class="integer">57</span>] = data_new[off_new+<span class="integer">1</span>] data_old[off_old + <span class="integer">8</span>] = data_old[off_old + <span class="integer">18</span>] = data_old[off_old + <span class="integer">28</span>] = data_old[off_old + <span class="integer">38</span>] = data_old[off_old + <span class="integer">48</span>] = data_old[off_old + <span class="integer">58</span>] = data_new[off_new+<span class="integer">2</span>] data_old[off_old + <span class="integer">9</span>] = data_old[off_old + <span class="integer">19</span>] = data_old[off_old + <span class="integer">29</span>] = data_old[off_old + <span class="integer">39</span>] = data_old[off_old + <span class="integer">49</span>] = data_old[off_old + <span class="integer">59</span>] = data_new[off_new+<span class="integer">3</span>] } <span class="keyword">var</span> end_old = len_old - <span class="integer">1</span>, end_new = len_new - <span class="integer">1</span> <span class="keyword">for</span>(;end_old &gt; start &amp;&amp; end_new &gt; start; end_old--, end_new--){ <span class="keyword">var</span> off_old = end_old * <span class="integer">10</span> * <span class="integer">6</span> <span class="keyword">var</span> off_new = end_new * <span class="integer">4</span> <span class="comment">//console.log(start, end_old, data_new[off_new], data_old[off_old+6],data_new[off_new] !== data_old[off_old + 6])</span> <span class="keyword">if</span>(data_new[off_new] !== data_old[off_old + <span class="integer">6</span>]) <span class="keyword">break</span> <span class="keyword">if</span>(data_new[off_new+<span class="integer">1</span>] !== data_old[off_old + <span class="integer">7</span>]) <span class="keyword">break</span> <span class="comment">//if(data_new[off_new+2] !== data_old[off_old + 8]) break</span> <span class="comment">//if(data_new[off_new+3] !== data_old[off_old + 9]) break</span> data_old[off_old + <span class="integer">7</span>] = data_old[off_old + <span class="integer">17</span>] = data_old[off_old + <span class="integer">27</span>] = data_old[off_old + <span class="integer">37</span>] = data_old[off_old + <span class="integer">47</span>] = data_old[off_old + <span class="integer">57</span>] = data_new[off_new+<span class="integer">1</span>] data_old[off_old + <span class="integer">8</span>] = data_old[off_old + <span class="integer">18</span>] = data_old[off_old + <span class="integer">28</span>] = data_old[off_old + <span class="integer">38</span>] = data_old[off_old + <span class="integer">48</span>] = data_old[off_old + <span class="integer">58</span>] = data_new[off_new+<span class="integer">2</span>] data_old[off_old + <span class="integer">9</span>] = data_old[off_old + <span class="integer">19</span>] = data_old[off_old + <span class="integer">29</span>] = data_old[off_old + <span class="integer">39</span>] = data_old[off_old + <span class="integer">49</span>] = data_old[off_old + <span class="integer">59</span>] = data_new[off_new+<span class="integer">3</span>] } <span class="comment">//mesh.clean = false</span> <span class="keyword">var</span> cursor_now = <span class="local-variable">this</span>.cursorset.list[<span class="integer">0</span>].start <span class="keyword">var</span> new_range = end_new - start <span class="keyword">var</span> old_range = end_old - start <span class="keyword">if</span>(old_range &lt; new_range &amp;&amp; <span class="local-variable">this</span>.change === <span class="string"><span class="delimiter">'</span><span class="content">delete</span><span class="delimiter">'</span></span>) <span class="keyword">return</span> <span class="local-variable">this</span>.format_dirty = <span class="predefined-constant">true</span> <span class="keyword">if</span>(old_range &gt; new_range &amp;&amp; <span class="local-variable">this</span>.change === <span class="string"><span class="delimiter">'</span><span class="content">keypress</span><span class="delimiter">'</span></span>) <span class="keyword">return</span> <span class="local-variable">this</span>.format_dirty = <span class="predefined-constant">true</span> <span class="comment">// do the cursor move magic</span> <span class="keyword">var</span> deleted_whitespace = <span class="predefined-constant">true</span> <span class="keyword">if</span>(<span class="local-variable">this</span>.change === <span class="string"><span class="delimiter">'</span><span class="content">delete</span><span class="delimiter">'</span></span>){ <span class="keyword">var</span> undo_data = <span class="local-variable">this</span>.undo_stack[<span class="local-variable">this</span>.undo_stack.length - <span class="integer">1</span>].data <span class="keyword">if</span>(undo_data) <span class="keyword">for</span>(<span class="keyword">var</span> i = <span class="integer">0</span>; i &lt; undo_data.length; i++){ <span class="keyword">var</span> <span class="reserved">char</span> = undo_data.array[i*<span class="integer">4</span>] <span class="keyword">if</span>(<span class="reserv