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<!DOCTYPE html> <html> <head> <title>mashlib.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="docco.css" /> </head> <body> <div id="container"> <div id="background"></div> <div id="jump_to"> Jump To … <div id="jump_wrapper"> <div id="jump_page"> <a class="source" href="controllers.html"> controllers.js </a> <a class="source" href="auth.html"> auth.js </a> <a class="source" href="backbone.html"> backbone.js </a> <a class="source" href="io.html"> io.js </a> <a class="source" href="jquery-1.5.1.html"> jquery-1.5.1.js </a> <a class="source" href="mashlib.html"> mashlib.js </a> <a class="source" href="ncutils.html"> ncutils.js </a> <a class="source" href="socket.io.html"> socket.io.js </a> <a class="source" href="socket.html"> socket.js </a> <a class="source" href="transport.html"> transport.js </a> <a class="source" href="underscore.html"> underscore.js </a> <a class="source" href="util.html"> util.js </a> <a class="source" href="models.html"> models.js </a> <a class="source" href="views.html"> views.js </a> </div> </div> </div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> mashlib.js </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1">¶</a> </div> </td> <td class="code"> <div class="highlight"><pre><span class="cm">/*!</span>
<span class="cm"> * mashlib.js </span>
<span class="cm"> * Parses strings for delimiters and returns chunks.</span>
<span class="cm"> *</span>
<span class="cm"> * Copyright(c) 2011 Justin Slattery <justin.slattery@fzysqr.com> </span>
<span class="cm"> * MIT Licensed</span>
<span class="cm"> */</span>
<span class="cm">/*</span>
<span class="cm"> * This is a [CommonJS module](http://www.commonjs.org/) so we need to start off with some setup. </span>
<span class="cm"> *</span>
<span class="cm"> * Here we are checking to see if this code is included as a module. If it is, we go ahead and include our one dependency, underscore</span>
<span class="cm"> */</span>
<span class="p">(</span><span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="p">(</span><span class="kd">function</span> <span class="p">()</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">exports</span> <span class="o">!==</span> <span class="s1">'undefined'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">_</span> <span class="o">=</span> <span class="nx">require</span><span class="p">(</span><span class="s1">'underscore'</span><span class="p">).</span><span class="nx">_</span><span class="p">;</span>
<span class="nx">mashlib</span> <span class="o">=</span> <span class="nx">exports</span><span class="p">;</span>
<span class="p">}</span>
<span class="k">else</span> <span class="p">{</span>
<span class="nx">mashlib</span> <span class="o">=</span> <span class="k">this</span><span class="p">.</span><span class="nx">mashlib</span> <span class="o">=</span> <span class="p">{};</span>
<span class="p">}</span>
<span class="cm">/*</span>
<span class="cm"> * Take a string and look for sections separated by a given delimiter.</span>
<span class="cm"> *</span>
<span class="cm"> * @param {string} chatText</span>
<span class="cm"> * @param {string} delimiter</span>
<span class="cm"> * @param {int} startPos - defaults to 0</span>
<span class="cm"> * @param {boolean} includeDelimiter - defaults to false</span>
<span class="cm"> * @param {boolean} requireLeadingSpace - defaults to true</span>
<span class="cm"> * @return {array}</span>
<span class="cm"> */</span>
<span class="nx">mashlib</span><span class="p">.</span><span class="nx">getChunksFromString</span> <span class="o">=</span> <span class="kd">function</span><span class="p">(</span><span class="nx">chatText</span><span class="p">,</span> <span class="nx">delimiter</span><span class="p">,</span> <span class="nx">startPos</span><span class="p">,</span> <span class="nx">includeDelimiter</span><span class="p">,</span> <span class="nx">requireLeadingSpace</span><span class="p">)</span> <span class="p">{</span>
<span class="k">if</span> <span class="p">(</span><span class="k">typeof</span> <span class="nx">startPos</span> <span class="o">===</span> <span class="s1">'boolean'</span><span class="p">)</span> <span class="p">{</span>
<span class="nx">includeDelimiter</span> <span class="o">=</span> <span class="nx">startPos</span><span class="p">;</span>
<span class="nx">startPos</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2">¶</a> </div> <p>Force chunks to be preceded by a space</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">requireLeadingSpace</span> <span class="o">=</span> <span class="nx">requireLeadingSpace</span> <span class="o">||</span> <span class="kc">true</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">chunkIndex</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">delimiter</span><span class="p">,</span> <span class="nx">startPos</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">chunks</span> <span class="o">=</span> <span class="k">new</span> <span class="nb">Array</span><span class="p">();</span>
<span class="k">if</span><span class="p">(</span><span class="k">typeof</span> <span class="nx">startPos</span> <span class="o">===</span> <span class="s1">'undefined'</span><span class="p">)</span>
<span class="nx">startPos</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="kd">var</span> <span class="nx">offSet</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span>
<span class="k">if</span><span class="p">(</span><span class="nx">includeDelimiter</span><span class="p">)</span>
<span class="nx">offSet</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span>
<span class="k">while</span><span class="p">(</span><span class="nx">startPos</span> <span class="o"><=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">length</span> <span class="o">&&</span> <span class="nx">chunkIndex</span> <span class="o">></span> <span class="o">-</span><span class="mi">1</span><span class="p">)</span> <span class="p">{</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3">¶</a> </div> <p>Grab the tag and push it on the array</p> </td> <td class="code"> <div class="highlight"><pre> <span class="kd">var</span> <span class="nx">endPos</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="s1">' '</span><span class="p">,</span> <span class="nx">chunkIndex</span><span class="o">+</span><span class="mi">1</span><span class="p">);</span>
<span class="k">if</span> <span class="p">(</span><span class="nx">endPos</span> <span class="o"><</span> <span class="mi">0</span><span class="p">)</span> <span class="nx">endPos</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span> <span class="c1">//handle sentence ending in a tag</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-4">¶</a> </div> <p>Add the chunk if the delimiter:</p>
<ul>
<li>is not standalone: 'blah @ blah'</li>
</ul>
<p>AND:</p>
<ul>
<li>is the first thing in the chat</li>
<li>if we don't care about leading spaces</li>
<li>or if there is a leading space</li>
</ul> </td> <td class="code"> <div class="highlight"><pre> <span class="k">if</span><span class="p">((</span><span class="nx">chunkIndex</span><span class="o">+</span><span class="mi">1</span> <span class="o"><</span> <span class="nx">endPos</span><span class="p">)</span>
<span class="o">&&</span> <span class="p">((</span><span class="nx">chunkIndex</span> <span class="o">===</span> <span class="mi">0</span><span class="p">)</span>
<span class="o">||</span> <span class="p">(</span><span class="o">!</span><span class="nx">requireLeadingSpace</span><span class="p">)</span>
<span class="o">||</span> <span class="p">(</span><span class="nx">chatText</span><span class="p">[</span><span class="nx">chunkIndex</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> <span class="o">===</span> <span class="s1">' '</span><span class="p">)))</span>
<span class="nx">chunks</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="nx">chatText</span><span class="p">.</span><span class="nx">substring</span><span class="p">(</span><span class="nx">chunkIndex</span><span class="o">+</span><span class="nx">offSet</span><span class="p">,</span> <span class="nx">endPos</span><span class="p">).</span><span class="nx">toLowerCase</span><span class="p">());</span>
</pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-5">¶</a> </div> <p>Setup for the next one</p> </td> <td class="code"> <div class="highlight"><pre> <span class="nx">startPos</span> <span class="o">=</span> <span class="nx">endPos</span> <span class="o">+</span><span class="mi">1</span><span class="p">;</span>
<span class="nx">chunkIndex</span> <span class="o">=</span> <span class="nx">chatText</span><span class="p">.</span><span class="nx">indexOf</span><span class="p">(</span><span class="nx">delimiter</span><span class="p">,</span> <span class="nx">startPos</span><span class="p">);</span>
<span class="p">}</span>
<span class="k">if</span><span class="p">(</span><span class="nx">chunks</span><span class="p">.</span><span class="nx">length</span> <span class="o">></span> <span class="mi">0</span><span class="p">)</span>
<span class="nx">console</span><span class="p">.</span><span class="nx">log</span><span class="p">(</span><span class="s1">'Found chunks: '</span> <span class="o">+</span> <span class="nx">chunks</span> <span class="o">+</span> <span class="s1">' for delimiter: '</span> <span class="o">+</span> <span class="nx">delimiter</span><span class="p">,</span> <span class="s1">' starting at position '</span> <span class="o">+</span> <span class="nx">startPos</span><span class="p">);</span>
<span class="k">return</span> <span class="nx">chunks</span><span class="p">;</span>
<span class="p">};</span>
<span class="p">})()</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>