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recompiling annotated documentation
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<!DOCTYPE html> <html> <head> <title>repl.coffee</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 &hellip; <div id="jump_wrapper"> <div id="jump_page"> <a class="source" href="cake.html"> cake.coffee </a> <a class="source" href="coffee-script.html"> coffee-script.coffee </a> <a class="source" href="command.html"> command.coffee </a> <a class="source" href="grammar.html"> grammar.coffee </a> <a class="source" href="helpers.html"> helpers.coffee </a> <a class="source" href="index.html"> index.coffee </a> <a class="source" href="lexer.html"> lexer.coffee </a> <a class="source" href="nodes.html"> nodes.coffee </a> <a class="source" href="optparse.html"> optparse.coffee </a> <a class="source" href="repl.html"> repl.coffee </a> <a class="source" href="rewriter.html"> rewriter.coffee </a> <a class="source" href="scope.html"> scope.coffee </a> </div> </div> </div> <table cellpadding="0" cellspacing="0"> <thead> <tr> <th class="docs"> <h1> repl.coffee </h1> </th> <th class="code"> </th> </tr> </thead> <tbody> <tr id="section-1"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-1">#</a> </div> <p>A very simple Read-Eval-Print-Loop. Compiles one line at a time to JavaScript
documenting optparse.coffee and repl.coffee
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and evaluates it. Good for simple tests, or poking around the <strong>Node.js</strong> API.
Using it looks like this:</p>
<pre><code>coffee&gt; puts "$num bottles of beer" for num in [99..1]
pushing docs to the site
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</code></pre> </td> <td class="code"> <div class="highlight"><pre></pre></div> </td> </tr> <tr id="section-2"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-2">#</a> </div> <p>Require the <strong>coffee-script</strong> module to get access to the compiler.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">CoffeeScript: </span><span class="nx">require</span> <span class="s1">&#39;./coffee-script&#39;</span>
<span class="nv">helpers: </span> <span class="nx">require</span><span class="p">(</span><span class="s1">&#39;./helpers&#39;</span><span class="p">).</span><span class="nx">helpers</span></pre></div> </td> </tr> <tr id="section-3"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-3">#</a> </div> <p>Our prompt.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">prompt: </span><span class="s1">&#39;coffee&gt; &#39;</span></pre></div> </td> </tr> <tr id="section-4"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-4">#</a> </div> <p>Quick alias for quitting the REPL.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nx">helpers</span><span class="p">.</span><span class="nx">extend</span> <span class="nx">global</span><span class="p">,</span> <span class="p">{</span>
waypoint -- docs halfway down through the OpNode
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<span class="nv">quit: </span><span class="o">-&gt;</span> <span class="nx">process</span><span class="p">.</span><span class="nx">exit</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
<span class="p">}</span></pre></div> </td> </tr> <tr id="section-5"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-5">#</a> </div> <p>The main REPL function. <strong>run</strong> is called every time a line of code is entered.
documenting optparse.coffee and repl.coffee
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Attempt to evaluate the command. If there's an exception, print it out instead
CoffeeScript 0.6.1, for Node.js v0.1.90
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of exiting.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">run: </span><span class="p">(</span><span class="nx">buffer</span><span class="p">)</span> <span class="o">-&gt;</span>
making equality left-associative so that our chaining works properly with it.
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<span class="k">try</span>
CoffeeScript 0.6.1, for Node.js v0.1.90
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<span class="nv">val: </span><span class="nx">CoffeeScript</span><span class="p">.</span><span class="nx">run</span> <span class="nx">buffer</span><span class="p">.</span><span class="nx">toString</span><span class="p">(),</span> <span class="p">{</span><span class="nv">no_wrap: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">globals: </span><span class="kc">true</span><span class="p">,</span> <span class="nv">source: </span><span class="s1">&#39;repl&#39;</span><span class="p">}</span>
making equality left-associative so that our chaining works properly with it.
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<span class="nx">p</span> <span class="nx">val</span> <span class="k">if</span> <span class="nx">val</span> <span class="o">isnt</span> <span class="kc">undefined</span>
<span class="k">catch</span> <span class="nx">err</span>
<span class="nx">puts</span> <span class="nx">err</span><span class="p">.</span><span class="nx">stack</span> <span class="o">or</span> <span class="nx">err</span><span class="p">.</span><span class="nx">toString</span><span class="p">()</span>
CoffeeScript 0.6.1, for Node.js v0.1.90
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<span class="nx">print</span> <span class="nx">prompt</span></pre></div> </td> </tr> <tr id="section-6"> <td class="docs"> <div class="octowrap"> <a class="octothorpe" href="#section-6">#</a> </div> <p>Start up the REPL by opening <strong>stdin</strong> and listening for input.</p> </td> <td class="code"> <div class="highlight"><pre><span class="nv">stdin: </span><span class="nx">process</span><span class="p">.</span><span class="nx">openStdin</span><span class="p">()</span>
<span class="nx">stdin</span><span class="p">.</span><span class="nx">addListener</span> <span class="s1">&#39;data&#39;</span><span class="p">,</span> <span class="nx">run</span>
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<span class="nx">print</span> <span class="nx">prompt</span>
</pre></div> </td> </tr> </tbody> </table> </div> </body> </html>