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instiki/vendor/plugins/erubis-2.6.5/doc-api/classes/Erubis/Engine.html
Jacques Distler a5e08f7bcc Rails_xss Plugin 
I installed the rails_xss plugin, for
the main purpose of seeing what will
break with Rails 3.0 (where the behaviour
of the plugin is the default). I think
I've fixed everything, but let me know if you
see stuff that is HTML-escaped, which
shouldn't be.

As a side benefit, we now use Erubis,
rather than ERB, to render templates.
They tell me it's faster ...
2010-05-26 00:27:49 -05:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>Class: Erubis::Engine</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
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// Make codeblocks hidden by default
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</head>
<body>
<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Class</strong></td>
<td class="class-name-in-header">Erubis::Engine</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../files/erubis/engine_rb.html">
erubis/engine.rb
</a>
<br />
</td>
</tr>
<tr class="top-aligned-row">
<td><strong>Parent:</strong></td>
<td>
Object
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="description">
<p>
(abstract) abstract engine class. subclass must include evaluator and
converter module.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000210">convert!</a>&nbsp;&nbsp;
<a href="#M000211">load_file</a>&nbsp;&nbsp;
<a href="#M000209">new</a>&nbsp;&nbsp;
<a href="#M000212">process</a>&nbsp;&nbsp;
<a href="#M000213">process_proc</a>&nbsp;&nbsp;
</div>
</div>
</div>
<!-- if includes -->
<div id="section">
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Class methods</h3>
<div id="method-M000211" class="method-detail">
<a name="M000211"></a>
<div class="method-heading">
<a href="#M000211" class="method-signature">
<span class="method-name">load_file</span><span class="method-args">(filename, properties={})</span>
</a>
</div>
<div class="method-description">
<p>
load file, write cache file, and return engine object. this method create
code cache file automatically. cachefile name can be specified with
properties[:cachename], or filname + &#8216;cache&#8217; is used as
default.
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000211-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000211-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine.rb, line 48</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">load_file</span>(<span class="ruby-identifier">filename</span>, <span class="ruby-identifier">properties</span>={})
<span class="ruby-identifier">cachename</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:cachename</span>] <span class="ruby-operator">||</span> (<span class="ruby-identifier">filename</span> <span class="ruby-operator">+</span> <span class="ruby-value str">'.cache'</span>)
<span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:filename</span>] = <span class="ruby-identifier">filename</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">test</span>(<span class="ruby-value">?f</span>, <span class="ruby-identifier">cachename</span>) <span class="ruby-operator">&amp;&amp;</span> <span class="ruby-constant">File</span>.<span class="ruby-identifier">mtime</span>(<span class="ruby-identifier">filename</span>) <span class="ruby-operator">&lt;=</span> <span class="ruby-constant">File</span>.<span class="ruby-identifier">mtime</span>(<span class="ruby-identifier">cachename</span>)
<span class="ruby-identifier">engine</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">new</span>(<span class="ruby-keyword kw">nil</span>, <span class="ruby-identifier">properties</span>)
<span class="ruby-identifier">engine</span>.<span class="ruby-identifier">src</span> = <span class="ruby-constant">File</span>.<span class="ruby-identifier">read</span>(<span class="ruby-identifier">cachename</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">input</span> = <span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-identifier">filename</span>, <span class="ruby-value str">'rb'</span>) {<span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span> <span class="ruby-identifier">f</span>.<span class="ruby-identifier">read</span> }
<span class="ruby-identifier">engine</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">input</span>, <span class="ruby-identifier">properties</span>)
<span class="ruby-constant">File</span>.<span class="ruby-identifier">open</span>(<span class="ruby-identifier">cachename</span>, <span class="ruby-value str">'wb'</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">f</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">f</span>.<span class="ruby-identifier">flock</span>(<span class="ruby-constant">File</span><span class="ruby-operator">::</span><span class="ruby-constant">LOCK_EX</span>)
<span class="ruby-identifier">f</span>.<span class="ruby-identifier">write</span>(<span class="ruby-identifier">engine</span>.<span class="ruby-identifier">src</span>)
<span class="ruby-identifier">f</span>.<span class="ruby-identifier">flush</span>()
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-identifier">engine</span>.<span class="ruby-identifier">src</span>.<span class="ruby-identifier">untaint</span> <span class="ruby-comment cmt"># ok?</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">engine</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000209" class="method-detail">
<a name="M000209"></a>
<div class="method-heading">
<a href="#M000209" class="method-signature">
<span class="method-name">new</span><span class="method-args">(input=nil, properties={})</span>
</a>
</div>
<div class="method-description">
<p>
include <a href="Evaluator.html">Evaluator</a> include <a
href="Converter.html">Converter</a> include <a
href="Generator.html">Generator</a>
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000209-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000209-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine.rb, line 25</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">initialize</span>(<span class="ruby-identifier">input</span>=<span class="ruby-keyword kw">nil</span>, <span class="ruby-identifier">properties</span>={})
<span class="ruby-comment cmt">#@input = input</span>
<span class="ruby-identifier">init_generator</span>(<span class="ruby-identifier">properties</span>)
<span class="ruby-identifier">init_converter</span>(<span class="ruby-identifier">properties</span>)
<span class="ruby-identifier">init_evaluator</span>(<span class="ruby-identifier">properties</span>)
<span class="ruby-ivar">@src</span> = <span class="ruby-identifier">convert</span>(<span class="ruby-identifier">input</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">input</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000210" class="method-detail">
<a name="M000210"></a>
<div class="method-heading">
<a href="#M000210" class="method-signature">
<span class="method-name">convert!</span><span class="method-args">(input)</span>
</a>
</div>
<div class="method-description">
<p>
convert input string and set it to @src
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000210-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000210-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine.rb, line 37</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">convert!</span>(<span class="ruby-identifier">input</span>)
<span class="ruby-ivar">@src</span> = <span class="ruby-identifier">convert</span>(<span class="ruby-identifier">input</span>)
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000212" class="method-detail">
<a name="M000212"></a>
<div class="method-heading">
<a href="#M000212" class="method-signature">
<span class="method-name">process</span><span class="method-args">(input, context=nil, filename=nil)</span>
</a>
</div>
<div class="method-description">
<p>
helper method to convert and evaluate input text with context object.
context may be Binding, Hash, or Object.
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000212-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000212-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine.rb, line 72</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">process</span>(<span class="ruby-identifier">input</span>, <span class="ruby-identifier">context</span>=<span class="ruby-keyword kw">nil</span>, <span class="ruby-identifier">filename</span>=<span class="ruby-keyword kw">nil</span>)
<span class="ruby-identifier">code</span> = <span class="ruby-identifier">convert</span>(<span class="ruby-identifier">input</span>)
<span class="ruby-identifier">filename</span> <span class="ruby-operator">||=</span> <span class="ruby-value str">'(erubis)'</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">context</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Binding</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">eval</span>(<span class="ruby-identifier">code</span>, <span class="ruby-identifier">context</span>, <span class="ruby-identifier">filename</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">context</span> = <span class="ruby-constant">Context</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">context</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">context</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">context</span>.<span class="ruby-identifier">instance_eval</span>(<span class="ruby-identifier">code</span>, <span class="ruby-identifier">filename</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000213" class="method-detail">
<a name="M000213"></a>
<div class="method-heading">
<a href="#M000213" class="method-signature">
<span class="method-name">process_proc</span><span class="method-args">(proc_obj, context=nil, filename=nil)</span>
</a>
</div>
<div class="method-description">
<p>
helper method evaluate Proc object with contect object. context may be
Binding, Hash, or Object.
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000213-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000213-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine.rb, line 88</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">process_proc</span>(<span class="ruby-identifier">proc_obj</span>, <span class="ruby-identifier">context</span>=<span class="ruby-keyword kw">nil</span>, <span class="ruby-identifier">filename</span>=<span class="ruby-keyword kw">nil</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">context</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Binding</span>)
<span class="ruby-identifier">filename</span> <span class="ruby-operator">||=</span> <span class="ruby-value str">'(erubis)'</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">eval</span>(<span class="ruby-identifier">proc_obj</span>, <span class="ruby-identifier">context</span>, <span class="ruby-identifier">filename</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">context</span> = <span class="ruby-constant">Context</span>.<span class="ruby-identifier">new</span>(<span class="ruby-identifier">context</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">context</span>.<span class="ruby-identifier">is_a?</span>(<span class="ruby-constant">Hash</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">context</span>.<span class="ruby-identifier">instance_eval</span>(<span class="ruby-operator">&amp;</span><span class="ruby-identifier">proc_obj</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
</div>
</div>
<div id="validator-badges">
<p><small><a href="http://validator.w3.org/check/referer">[Validate]</a></small></p>
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