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PORuby/Rails scan/match with regex from a tag to another out of text
 

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    <p>In the following content samples, I wrapped the lines to make it easier to read on Stackoverflow (so you don't have to scroll to the right to look at the examples).</p> <p>Content A:</p> <pre><code>"Lorem Ipsum\r\n [img]http://example.org/first.jpg[/img]\r\n [img]http://example.org/second.jpg[/img]\r\n more lorem ipsum ..." </code></pre> <p>Content B:</p> <pre><code>"Lorem Ipsum\r\n [img caption="Sample caption"]http://example.org/third.jpg[/img] [img]http://example.org/fourth.jpg[/img]" </code></pre> <p>Content C:</p> <pre><code>"Lorem Ipsum [img]http://example.org/fifth.jpg[/img]\r\n more lorem ipsum\r\n\r\n [img caption="Some other caption"]http://example.org[/img]" </code></pre> <p>What I've tried:</p> <pre><code>content.match(/\[img\]([^&lt;&gt;]*)\[\/img\]/imu) return example: "[img]...[/img]\r\n[img]...[/img] content.scan(/\[img\]([^&lt;&gt;]*)\[\/img\]/imu) return example: "...[/img]\r\n[img]..." </code></pre> <p>What I would like to accomplish when running the scan/match/regex solution over the above 3 Content Examples is to get every occurence of <code>[img]...[/img]</code> and <code>[img caption="?"]...[/img]</code> and put it in an array for later use.</p> <pre><code>Array 1 : A : [img]http://example.org/first.jpg[/img] 2 : A : [img]http://example.org/second.jpg[/img] 3 : B : [img caption="Sample caption"]http://example.org/third.jpg[/img] 4 : B : [img]http://example.org/fourth.jpg[/img] 5 : C : [img]http://example.org/fifth.jpg[/img] 6 : C : [img caption="Some other caption"]http://example.org[/img] </code></pre> <p>It would also be helpful to limit the "stripped content" to only where there is an open and closign tag, meaning when there is a <code>[img]</code> / <code>[img caption="?"]</code> and a missing <code>[/img]</code> afterwards, to ignore it.</p> <p>I've read the <a href="http://www.ruby-doc.org/core-1.9.3/String.html" rel="nofollow">http://www.ruby-doc.org/core-1.9.3/String.html</a> up and down but can't find anything that seem to work for this.</p> <p>Update:</p> <p>So I figured that this:</p> <pre><code>\[img([^&lt;&gt;]*)\]([^&lt;&gt;]*)\[\/img\] </code></pre> <p>will find either:</p> <pre><code>[img]something[/img] </code></pre> <p>and:</p> <pre><code>[img caption="something"]something[/img] </code></pre> <p>Now I just need to know how to catch every occurence inside the different contents. I can always just get it from the first to the last [img][/img] tags, so when there is other Lorem Ipsum in between it will get grabbed too.</p>
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