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• Parsing of XML data has high CPU usage
• Please improve
• Snake / Nibbles clone in C and Ncurses
• List the files in a directory without the directory name or the extension
• Convert simple Javascript to jQuery plugin
• Simple Particle Engine for a shooter game
• Active Record getting unique records
• Breadth first cartesian product iterator
• php refactoring
• first BST

Pastable version of Return nil if nothing matched

<pre class='prettyprint' language='ruby'>def parse_url(url) matches = url.match(/\/([\d]{10})/) return nil unless matches matches[1] end</pre> <a href="http://www.refactormycode.com/codes/1323-return-nil-if-nothing-matched" style="color:#fff" title="As seen on RefactorMyCode.com"><img alt="Small_logo" src="http://www.refactormycode.com/images/small_logo.gif" style="border:0" /></a>