instiki/vendor/plugins/erubis-2.6.5/doc-api/classes/Erubis/SchemeGenerator.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

382 lines
17 KiB
HTML

<?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>Module: Erubis::SchemeGenerator</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<meta http-equiv="Content-Script-Type" content="text/javascript" />
<link rel="stylesheet" href="../.././rdoc-style.css" type="text/css" media="screen" />
<script type="text/javascript">
// <![CDATA[
function popupCode( url ) {
window.open(url, "Code", "resizable=yes,scrollbars=yes,toolbar=no,status=no,height=150,width=400")
}
function toggleCode( id ) {
if ( document.getElementById )
elem = document.getElementById( id );
else if ( document.all )
elem = eval( "document.all." + id );
else
return false;
elemStyle = elem.style;
if ( elemStyle.display != "block" ) {
elemStyle.display = "block"
} else {
elemStyle.display = "none"
}
return true;
}
// Make codeblocks hidden by default
document.writeln( "<style type=\"text/css\">div.method-source-code { display: none }</style>" )
// ]]>
</script>
</head>
<body>
<div id="classHeader">
<table class="header-table">
<tr class="top-aligned-row">
<td><strong>Module</strong></td>
<td class="class-name-in-header">Erubis::SchemeGenerator</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../files/erubis/engine/escheme_rb.html">
erubis/engine/escheme.rb
</a>
<br />
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000043">add_expr_debug</a>&nbsp;&nbsp;
<a href="#M000042">add_expr_escaped</a>&nbsp;&nbsp;
<a href="#M000041">add_expr_literal</a>&nbsp;&nbsp;
<a href="#M000044">add_postamble</a>&nbsp;&nbsp;
<a href="#M000036">add_preamble</a>&nbsp;&nbsp;
<a href="#M000040">add_stmt</a>&nbsp;&nbsp;
<a href="#M000039">add_text</a>&nbsp;&nbsp;
<a href="#M000037">escape_text</a>&nbsp;&nbsp;
<a href="#M000038">escaped_expr</a>&nbsp;&nbsp;
<a href="#M000035">init_generator</a>&nbsp;&nbsp;
</div>
</div>
</div>
<!-- if includes -->
<div id="includes">
<h3 class="section-bar">Included Modules</h3>
<div id="includes-list">
<span class="include-name"><a href="Generator.html">Generator</a></span>
</div>
</div>
<div id="section">
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000043" class="method-detail">
<a name="M000043"></a>
<div class="method-heading">
<a href="#M000043" class="method-signature">
<span class="method-name">add_expr_debug</span><span class="method-args">(src, code)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000043-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000043-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 71</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_expr_debug</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-identifier">s</span> = (<span class="ruby-identifier">code</span>.<span class="ruby-identifier">strip!</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">code</span>).<span class="ruby-identifier">gsub</span>(<span class="ruby-regexp re">/\&quot;/</span>, <span class="ruby-value str">'\\&quot;'</span>)
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;(display \&quot;*** debug: #{s}=\&quot;)(display #{code.strip})(display \&quot;\\n\&quot;)&quot;</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000042" class="method-detail">
<a name="M000042"></a>
<div class="method-heading">
<a href="#M000042" class="method-signature">
<span class="method-name">add_expr_escaped</span><span class="method-args">(src, code)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000042-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000042-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 67</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_expr_escaped</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-identifier">add_expr_literal</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">escaped_expr</span>(<span class="ruby-identifier">code</span>))
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000041" class="method-detail">
<a name="M000041"></a>
<div class="method-heading">
<a href="#M000041" class="method-signature">
<span class="method-name">add_expr_literal</span><span class="method-args">(src, code)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000041-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000041-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 62</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_expr_literal</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-identifier">code</span>.<span class="ruby-identifier">strip!</span>
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;(#{@func} #{code})&quot;</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000044" class="method-detail">
<a name="M000044"></a>
<div class="method-heading">
<a href="#M000044" class="method-signature">
<span class="method-name">add_postamble</span><span class="method-args">(src)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000044-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000044-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 76</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_postamble</span>(<span class="ruby-identifier">src</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-ivar">@func</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'_add'</span>
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-value str">&quot;\n&quot;</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">src</span>[<span class="ruby-value">-1</span>] <span class="ruby-operator">==</span> <span class="ruby-value">?\n</span>
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-value str">&quot; (reverse _buf))\n&quot;</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000036" class="method-detail">
<a name="M000036"></a>
<div class="method-heading">
<a href="#M000036" class="method-signature">
<span class="method-name">add_preamble</span><span class="method-args">(src)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000036-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000036-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 28</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_preamble</span>(<span class="ruby-identifier">src</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-ivar">@func</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'_add'</span>
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-value str">&quot;(let ((_buf '())) &quot;</span> <span class="ruby-operator">+</span> \
<span class="ruby-value str">&quot;(define (_add x) (set! _buf (cons x _buf))) &quot;</span>
<span class="ruby-comment cmt">#src &lt;&lt; &quot;(let* ((_buf '())&quot; + # &quot; (_add (lambda (x) (set! _buf (cons x _buf))))) &quot;</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000040" class="method-detail">
<a name="M000040"></a>
<div class="method-heading">
<a href="#M000040" class="method-signature">
<span class="method-name">add_stmt</span><span class="method-args">(src, code)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000040-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000040-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 58</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">code</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000039" class="method-detail">
<a name="M000039"></a>
<div class="method-heading">
<a href="#M000039" class="method-signature">
<span class="method-name">add_text</span><span class="method-args">(src, text)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000039-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000039-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 47</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">text</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">text</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">t</span> = <span class="ruby-identifier">escape_text</span>(<span class="ruby-identifier">text</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">t</span>[<span class="ruby-value">-1</span>] <span class="ruby-operator">==</span> <span class="ruby-value">?\n</span>
<span class="ruby-identifier">t</span>[<span class="ruby-value">-1</span>, <span class="ruby-value">1</span>] = <span class="ruby-value str">''</span>
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;(#{@func} \&quot;&quot;</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">t</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-value str">&quot;\\n\&quot;)\n&quot;</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">src</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-node">&quot;(#{@func} \&quot;&quot;</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-identifier">t</span> <span class="ruby-operator">&lt;&lt;</span> <span class="ruby-value str">'&quot;)'</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000037" class="method-detail">
<a name="M000037"></a>
<div class="method-heading">
<a href="#M000037" class="method-signature">
<span class="method-name">escape_text</span><span class="method-args">(text)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000037-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000037-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 36</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">escape_text</span>(<span class="ruby-identifier">text</span>)
<span class="ruby-ivar">@table_</span> <span class="ruby-operator">||=</span> { <span class="ruby-value str">'&quot;'</span>=<span class="ruby-operator">&gt;</span><span class="ruby-value str">'\\&quot;'</span>, <span class="ruby-value str">'\\'</span>=<span class="ruby-operator">&gt;</span><span class="ruby-value str">'\\\\'</span> }
<span class="ruby-identifier">text</span>.<span class="ruby-identifier">gsub!</span>(<span class="ruby-regexp re">/[&quot;\\]/</span>) { <span class="ruby-operator">|</span><span class="ruby-identifier">m</span><span class="ruby-operator">|</span> <span class="ruby-ivar">@table_</span>[<span class="ruby-identifier">m</span>] }
<span class="ruby-keyword kw">return</span> <span class="ruby-identifier">text</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000038" class="method-detail">
<a name="M000038"></a>
<div class="method-heading">
<a href="#M000038" class="method-signature">
<span class="method-name">escaped_expr</span><span class="method-args">(code)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000038-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000038-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 42</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">escaped_expr</span>(<span class="ruby-identifier">code</span>)
<span class="ruby-identifier">code</span>.<span class="ruby-identifier">strip!</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-node">&quot;(#{@escapefunc} #{code})&quot;</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000035" class="method-detail">
<a name="M000035"></a>
<div class="method-heading">
<a href="#M000035" class="method-signature">
<span class="method-name">init_generator</span><span class="method-args">(properties={})</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000035-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000035-source">
<pre>
<span class="ruby-comment cmt"># File erubis/engine/escheme.rb, line 22</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">init_generator</span>(<span class="ruby-identifier">properties</span>={})
<span class="ruby-keyword kw">super</span>
<span class="ruby-ivar">@escapefunc</span> <span class="ruby-operator">||=</span> <span class="ruby-value str">'escape'</span>
<span class="ruby-ivar">@func</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:func</span>] <span class="ruby-operator">||</span> <span class="ruby-value str">'_add'</span> <span class="ruby-comment cmt"># or 'display'</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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