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PONokogiri: Select content between element A and B
 

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    <p>What's the smartest way to have Nokogiri select all content between the start and the stop element (including start-/stop-element)?</p> <p>Check example code below to understand what I'm looking for:</p> <pre><code>require 'rubygems' require 'nokogiri' value = Nokogiri::HTML.parse(&lt;&lt;-HTML_END) "&lt;html&gt; &lt;body&gt; &lt;p id='para-1'&gt;A&lt;/p&gt; &lt;div class='block' id='X1'&gt; &lt;p class="this"&gt;Foo&lt;/p&gt; &lt;p id='para-2'&gt;B&lt;/p&gt; &lt;/div&gt; &lt;p id='para-3'&gt;C&lt;/p&gt; &lt;p class="that"&gt;Bar&lt;/p&gt; &lt;p id='para-4'&gt;D&lt;/p&gt; &lt;p id='para-5'&gt;E&lt;/p&gt; &lt;div class='block' id='X2'&gt; &lt;p id='para-6'&gt;F&lt;/p&gt; &lt;/div&gt; &lt;p id='para-7'&gt;F&lt;/p&gt; &lt;p id='para-8'&gt;G&lt;/p&gt; &lt;/body&gt; &lt;/html&gt;" HTML_END parent = value.css('body').first # START element @start_element = parent.at('p#para-3') # STOP element @end_element = parent.at('p#para-7') </code></pre> <p><strong>The result (return value) should look like this</strong>:</p> <pre><code>&lt;p id='para-3'&gt;C&lt;/p&gt; &lt;p class="that"&gt;Bar&lt;/p&gt; &lt;p id='para-4'&gt;D&lt;/p&gt; &lt;p id='para-5'&gt;E&lt;/p&gt; &lt;div class='block' id='X2'&gt; &lt;p id='para-6'&gt;F&lt;/p&gt; &lt;/div&gt; &lt;p id='para-7'&gt;F&lt;/p&gt; </code></pre> <p><strong>Update: This is my current solution, though I think there must be something smarter:</strong></p> <pre><code>@my_content = "" @selected_node = true def collect_content(_start) if _start == @end_element @my_content &lt;&lt; _start.to_html @selected_node = false end if @selected_node == true @my_content &lt;&lt; _start.to_html collect_content(_start.next) end end collect_content(@start_element) puts @my_content </code></pre>
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