File: //usr/share/doc/ruby-erubis/doc-api/classes/Erubis/PI/Converter.html
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<title>Module: Erubis::PI::Converter</title>
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<td><strong>Module</strong></td>
<td class="class-name-in-header">Erubis::PI::Converter</td>
</tr>
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<td><strong>In:</strong></td>
<td>
<a href="../../../files/erubis/converter_rb.html">
erubis/converter.rb
</a>
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<p>
Processing Instructions (<a href="../PI.html">PI</a>) converter for XML.
this class converts ’<?rb … ?>’ and
’${…}’ notation.
</p>
</div>
</div>
<div id="method-list">
<h3 class="section-bar">Methods</h3>
<div class="name-list">
<a href="#M000048">convert</a>
<a href="#M000049">convert_input</a>
<a href="#M000047">init_converter</a>
</div>
</div>
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<!-- 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="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">pi</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">prefix</td>
<td class="context-item-value"> [RW] </td>
<td class="context-item-desc"></td>
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<h3 class="section-bar">Public Instance methods</h3>
<div id="method-M000048" class="method-detail">
<a name="M000048"></a>
<div class="method-heading">
<a href="#M000048" class="method-signature">
<span class="method-name">convert</span><span class="method-args">(input)</span>
</a>
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<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000048-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000048-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 224</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">convert</span>(<span class="ruby-identifier">input</span>)
<span class="ruby-identifier">code</span> = <span class="ruby-keyword kw">super</span>(<span class="ruby-identifier">input</span>)
<span class="ruby-keyword kw">return</span> <span class="ruby-ivar">@header</span> <span class="ruby-operator">||</span> <span class="ruby-ivar">@footer</span> <span class="ruby-operator">?</span> <span class="ruby-node">"#{@header}#{code}#{@footer}"</span> <span class="ruby-operator">:</span> <span class="ruby-identifier">code</span>
<span class="ruby-keyword kw">end</span>
</pre>
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</div>
</div>
<div id="method-M000047" class="method-detail">
<a name="M000047"></a>
<div class="method-heading">
<a href="#M000047" 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('M000047-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000047-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 215</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">@trim</span> = <span class="ruby-identifier">properties</span>.<span class="ruby-identifier">fetch</span>(<span class="ruby-identifier">:trim</span>, <span class="ruby-keyword kw">true</span>)
<span class="ruby-ivar">@pi</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:pi</span>] <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:pi</span>]
<span class="ruby-ivar">@embchar</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:embchar</span>] <span class="ruby-operator">||</span> <span class="ruby-value str">'@'</span>
<span class="ruby-ivar">@pattern</span> = <span class="ruby-identifier">properties</span>[<span class="ruby-identifier">:pattern</span>]
<span class="ruby-ivar">@pattern</span> = <span class="ruby-value str">'<% %>'</span> <span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@pattern</span>.<span class="ruby-identifier">nil?</span> <span class="ruby-comment cmt">#|| @pattern == true</span>
<span class="ruby-keyword kw">end</span>
</pre>
</div>
</div>
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<h3 class="section-bar">Protected Instance methods</h3>
<div id="method-M000049" class="method-detail">
<a name="M000049"></a>
<div class="method-heading">
<a href="#M000049" class="method-signature">
<span class="method-name">convert_input</span><span class="method-args">(codebuf, input)</span>
</a>
</div>
<div class="method-description">
<p><a class="source-toggle" href="#"
onclick="toggleCode('M000049-source');return false;">[Source]</a></p>
<div class="method-source-code" id="M000049-source">
<pre>
<span class="ruby-comment cmt"># File erubis/converter.rb, line 231</span>
<span class="ruby-keyword kw">def</span> <span class="ruby-identifier">convert_input</span>(<span class="ruby-identifier">codebuf</span>, <span class="ruby-identifier">input</span>)
<span class="ruby-keyword kw">unless</span> <span class="ruby-ivar">@regexp</span>
<span class="ruby-ivar">@pi</span> <span class="ruby-operator">||=</span> <span class="ruby-value str">'e'</span>
<span class="ruby-identifier">ch</span> = <span class="ruby-constant">Regexp</span>.<span class="ruby-identifier">escape</span>(<span class="ruby-ivar">@embchar</span>)
<span class="ruby-keyword kw">if</span> <span class="ruby-ivar">@pattern</span>
<span class="ruby-identifier">left</span>, <span class="ruby-identifier">right</span> = <span class="ruby-ivar">@pattern</span>.<span class="ruby-identifier">split</span>(<span class="ruby-value str">' '</span>)
<span class="ruby-ivar">@regexp</span> = <span class="ruby-node">/<\?#{@pi}(?:-(\w+))?(\s.*?)\?>([ \t]*\r?\n)?|#{ch}(!*)?\{(.*?)\}#{ch}|#{left}(=+)(.*?)#{right}/</span><span class="ruby-identifier">m</span>
<span class="ruby-keyword kw">else</span>
<span class="ruby-ivar">@regexp</span> = <span class="ruby-node">/<\?#{@pi}(?:-(\w+))?(\s.*?)\?>([ \t]*\r?\n)?|#{ch}(!*)?\{(.*?)\}#{ch}/</span><span class="ruby-identifier">m</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-keyword kw">end</span>
<span class="ruby-comment cmt">#</span>
<span class="ruby-identifier">is_bol</span> = <span class="ruby-keyword kw">true</span>
<span class="ruby-identifier">pos</span> = <span class="ruby-value">0</span>
<span class="ruby-identifier">input</span>.<span class="ruby-identifier">scan</span>(<span class="ruby-ivar">@regexp</span>) <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">pi_arg</span>, <span class="ruby-identifier">stmt</span>, <span class="ruby-identifier">rspace</span>,
<span class="ruby-identifier">indicator1</span>, <span class="ruby-identifier">expr1</span>, <span class="ruby-identifier">indicator2</span>, <span class="ruby-identifier">expr2</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">lspace</span> = <span class="ruby-identifier">stmt</span> <span class="ruby-value">? </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-operator">:</span> <span class="ruby-keyword kw">nil</span>
<span class="ruby-identifier">is_bol</span> = <span class="ruby-identifier">stmt</span> <span class="ruby-operator">&&</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">codebuf</span>, <span class="ruby-identifier">text</span>) <span class="ruby-comment cmt"># unless text.empty?</span>
<span class="ruby-comment cmt">#</span>
<span class="ruby-keyword kw">if</span> <span class="ruby-identifier">stmt</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_pi_stmt</span>(<span class="ruby-identifier">codebuf</span>, <span class="ruby-node">"#{lspace}#{stmt}#{rspace}"</span>, <span class="ruby-identifier">pi_arg</span>)
<span class="ruby-keyword kw">else</span>
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">codebuf</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_pi_stmt</span>(<span class="ruby-identifier">codebuf</span>, <span class="ruby-identifier">stmt</span>, <span class="ruby-identifier">pi_arg</span>)
<span class="ruby-identifier">add_text</span>(<span class="ruby-identifier">codebuf</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">else</span>
<span class="ruby-identifier">add_pi_expr</span>(<span class="ruby-identifier">codebuf</span>, <span class="ruby-identifier">expr1</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">expr2</span>, <span class="ruby-identifier">indicator1</span> <span class="ruby-operator">||</span> <span class="ruby-identifier">indicator2</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">codebuf</span>, <span class="ruby-identifier">rest</span>)
<span class="ruby-keyword kw">end</span>
</pre>
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