File: //usr/share/doc/ruby-erubis/doc-api/classes/Erubis/Basic/Converter.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::Basic::Converter</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::Basic::Converter</td>
</tr>
<tr class="top-aligned-row">
<td><strong>In:</strong></td>
<td>
<a href="../../../files/erubis/converter_rb.html">
erubis/converter.rb
</a>
<br />
</td>
</tr>
</table>
</div>
<!-- banner header -->
<div id="bodyContent">
<div id="contextContent">
<div id="description">
<p>
basic converter which supports ’<% … %>’ notation.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000144">add_expr</a>
<a href="#M000143">convert_input</a>
<a href="#M000141">init_converter</a>
<a href="#M000142">pattern_regexp</a>
</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="../Converter.html">Erubis::Converter</a></span>
</div>
</div>
<div id="section">
<div id="constants-list">
<h3 class="section-bar">Constants</h3>
<div class="name-list">
<table summary="Constants">
<tr class="top-aligned-row context-row">
<td class="context-item-name">DEFAULT_REGEXP</td>
<td>=</td>
<td class="context-item-value">pattern_regexp('<% %>')</td>
<td width="3em"> </td>
<td class="context-item-desc">
DEFAULT_REGEXP = /(.*?)(^[ \t]*)?<%(=+|\#)?(.*?)-?%>([ \t]*\r?\n)?/m
DEFAULT_REGEXP = /(^[ \t]*)?<%(=+|\#)?(.*?)-?%>([ \t]*\r?\n)?/m
DEFAULT_REGEXP = /<%(=+|\#)?(.*?)-?%>([ \t]*\r?\n)?/m
</td>
</tr>
</table>
</div>
</div>
<div id="attribute-list">
<h3 class="section-bar">Attributes</h3>
<div class="name-list">
<table>
<tr class="top-aligned-row context-row">
<td class="context-item-name">pattern</td>
<td class="context-item-value"> [RW] </td>
<td class="context-item-desc"></td>
</tr>
<tr class="top-aligned-row context-row">
<td class="context-item-name">trim</td>
<td class="context-item-value"> [RW] </td>
<td class="context-item-desc"></td>
</tr>
</table>
</div>
</div>
<!-- if method_list -->
<div id="methods">
<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000144" class="method-detail">
<a name="M000144"></a>
<div class="method-heading">
<a href="#M000144" class="method-signature">
<span class="method-name">add_expr</span><span class="method-args">(src, code, indicator)</span>
</a>
</div>
<div class="method-description">
<p>
add expression code to src
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000144-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000144-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 176</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">add_expr</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>, <span class="ruby-identifier">indicator</span>)
<span class="ruby-keyword kw">case</span> <span class="ruby-identifier">indicator</span>
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">'='</span>
<span class="ruby-ivar">@escape</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">add_expr_escaped</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">add_expr_literal</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">'=='</span>
<span class="ruby-ivar">@escape</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">add_expr_literal</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>) <span class="ruby-operator">:</span> <span class="ruby-identifier">add_expr_escaped</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-keyword kw">when</span> <span class="ruby-value str">'==='</span>
<span class="ruby-identifier">add_expr_debug</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000143" class="method-detail">
<a name="M000143"></a>
<div class="method-heading">
<a href="#M000143" class="method-signature">
<span class="method-name">convert_input</span><span class="method-args">(src, input)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000143-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000143-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 127</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">convert_input</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">input</span>)
<span class="ruby-identifier">pat</span> = <span class="ruby-ivar">@pattern</span>
<span class="ruby-identifier">regexp</span> = <span class="ruby-identifier">pat</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">pat</span> <span class="ruby-operator">==</span> <span class="ruby-value str">'<% %>'</span> <span class="ruby-operator">?</span> <span class="ruby-constant">DEFAULT_REGEXP</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">pattern_regexp</span>(<span class="ruby-identifier">pat</span>)
<span class="ruby-identifier">pos</span> = <span class="ruby-value">0</span>
<span class="ruby-identifier">is_bol</span> = <span class="ruby-keyword kw">true</span> <span class="ruby-comment cmt"># is beginning of line</span>
<span class="ruby-identifier">input</span>.<span class="ruby-identifier">scan</span>(<span class="ruby-identifier">regexp</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">indicator</span>, <span class="ruby-identifier">code</span>, <span class="ruby-identifier">tailch</span>, <span class="ruby-identifier">rspace</span><span class="ruby-operator">|</span>
<span class="ruby-identifier">match</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">last_match</span>()
<span class="ruby-identifier">len</span> = <span class="ruby-identifier">match</span>.<span class="ruby-identifier">begin</span>(<span class="ruby-value">0</span>) <span class="ruby-operator">-</span> <span class="ruby-identifier">pos</span>
<span class="ruby-identifier">text</span> = <span class="ruby-identifier">input</span>[<span class="ruby-identifier">pos</span>, <span class="ruby-identifier">len</span>]
<span class="ruby-identifier">pos</span> = <span class="ruby-identifier">match</span>.<span class="ruby-identifier">end</span>(<span class="ruby-value">0</span>)
<span class="ruby-identifier">ch</span> = <span class="ruby-identifier">indicator</span> <span class="ruby-value">? </span><span class="ruby-identifier">indicator</span>[<span class="ruby-value">0</span>] <span class="ruby-operator">:</span> <span class="ruby-keyword kw">nil</span>
<span class="ruby-identifier">lspace</span> = <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?=</span> <span class="ruby-operator">?</span> <span class="ruby-keyword kw">nil</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">detect_spaces_at_bol</span>(<span class="ruby-identifier">text</span>, <span class="ruby-identifier">is_bol</span>)
<span class="ruby-identifier">is_bol</span> = <span class="ruby-identifier">rspace</span> <span class="ruby-value">? </span><span class="ruby-keyword kw">true</span> <span class="ruby-operator">:</span> <span class="ruby-keyword kw">false</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">if</span> <span class="ruby-identifier">text</span> <span class="ruby-operator">&&</span> <span class="ruby-operator">!</span><span class="ruby-identifier">text</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-comment cmt">## * when '<%= %>', do nothing</span>
<span class="ruby-comment cmt">## * when '<% %>' or '<%# %>', delete spaces iff only spaces are around '<% %>'</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?=</span> <span class="ruby-comment cmt"># <%= %></span>
<span class="ruby-identifier">rspace</span> = <span class="ruby-keyword kw">nil</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">tailch</span> <span class="ruby-operator">&&</span> <span class="ruby-operator">!</span><span class="ruby-identifier">tailch</span>.<span class="ruby-identifier">empty?</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">lspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">lspace</span>
<span class="ruby-identifier">add_expr</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>, <span class="ruby-identifier">indicator</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?\#</span> <span class="ruby-comment cmt"># <%# %></span>
<span class="ruby-identifier">n</span> = <span class="ruby-identifier">code</span>.<span class="ruby-identifier">count</span>(<span class="ruby-value str">"\n"</span>) <span class="ruby-operator">+</span> (<span class="ruby-identifier">rspace</span> <span class="ruby-value">? </span><span class="ruby-value">1</span> <span class="ruby-operator">:</span> <span class="ruby-value">0</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@trim</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">lspace</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-value str">"\n"</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">n</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">lspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">lspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-value str">"\n"</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">n</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">elsif</span> <span class="ruby-identifier">ch</span> <span class="ruby-operator">==</span> <span class="ruby-value">?%</span> <span class="ruby-comment cmt"># <%% %></span>
<span class="ruby-identifier">s</span> = <span class="ruby-node">"#{lspace}#{@prefix||='<%'}#{code}#{tailch}#{@postfix||='%>'}#{rspace}"</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">s</span>)
<span class="ruby-keyword kw">else</span> <span class="ruby-comment cmt"># <% %></span>
<span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@trim</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">lspace</span> <span class="ruby-operator">&&</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-node">"#{lspace}#{code}#{rspace}"</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">lspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">lspace</span>
<span class="ruby-identifier">add_stmt</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">code</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rspace</span>) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">rspace</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-comment cmt">#rest = $' || input # ruby1.8</span>
<span class="ruby-identifier">rest</span> = <span class="ruby-identifier">pos</span> <span class="ruby-operator">==</span> <span class="ruby-value">0</span> <span class="ruby-operator">?</span> <span class="ruby-identifier">input</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">input</span>[<span class="ruby-identifier">pos</span><span class="ruby-operator">..</span><span class="ruby-value">-1</span>] <span class="ruby-comment cmt"># ruby1.9</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">src</span>, <span class="ruby-identifier">rest</span>)
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<div id="method-M000141" class="method-detail">
<a name="M000141"></a>
<div class="method-heading">
<a href="#M000141" class="method-signature">
<span class="method-name">init_converter</span><span class="method-args">(properties={})</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000141-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000141-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 103</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">init_converter</span>(<span class="ruby-identifier">properties</span>={})
<span class="ruby-keyword kw">super</span>(<span class="ruby-identifier">properties</span>)
<span class="ruby-ivar">@pattern</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:pattern</span>]
<span class="ruby-ivar">@trim</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:trim</span>] <span class="ruby-operator">!=</span> <span class="ruby-keyword kw">false</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
</div>
<h3 class="section-bar">Protected Instance methods</h3>
<div id="method-M000142" class="method-detail">
<a name="M000142"></a>
<div class="method-heading">
<a href="#M000142" class="method-signature">
<span class="method-name">pattern_regexp</span><span class="method-args">(pattern)</span>
</a>
</div>
<div class="method-description">
<p>
return regexp of pattern to parse eRuby script
</p>
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000142-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000142-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 112</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">pattern_regexp</span>(<span class="ruby-identifier">pattern</span>)
<span class="ruby-ivar">@prefix</span>, <span class="ruby-ivar">@postfix</span> = <span class="ruby-identifier">pattern</span>.<span class="ruby-identifier">split</span>() <span class="ruby-comment cmt"># '<% %>' => '<%', '%>'</span>
<span class="ruby-comment cmt">#return /(.*?)(^[ \t]*)?#{@prefix}(=+|\#)?(.*?)-?#{@postfix}([ \t]*\r?\n)?/m</span>
<span class="ruby-comment cmt">#return /(^[ \t]*)?#{@prefix}(=+|\#)?(.*?)-?#{@postfix}([ \t]*\r?\n)?/m</span>
<span class="ruby-keyword kw">return</span> <span class="ruby-node">/#{@prefix}(=+|-|\#|%)?(.*?)([-=])?#{@postfix}([ \t]*\r?\n)?/</span><span class="ruby-identifier">m</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>
</div>
</body>
</html>