http://snippets.dzone.com/posts Sat, 26 Jul 2008 00:42:06 GMT DZone Snippets: Troelskn's Code Snippets http://snippets.dzone.com/posts/show/4147 Scans a directory, and all subdirectories for files, matching a regular expression. Each match is sent to the callback provided as third argument. A simple example: <br /> <br /><code> <br />function my_handler($filename) { <br /> echo $filename . "\n"; <br />} <br />find_files('c:/', '/php$/', 'my_handler'); <br /></code> <br /> <br />And the actual snippet <br /> <br /><code> <br />function find_files($path, $pattern, $callback) { <br /> $path = rtrim(str_replace("\\", "/", $path), '/') . '/'; <br /> $matches = Array(); <br /> $entries = Array(); <br /> $dir = dir($path); <br /> while (false !== ($entry = $dir->read())) { <br /> $entries[] = $entry; <br /> } <br /> $dir->close(); <br /> foreach ($entries as $entry) { <br /> $fullname = $path . $entry; <br /> if ($entry != '.' && $entry != '..' && is_dir($fullname)) { <br /> find_files($fullname, $pattern, $callback); <br /> } else if (is_file($fullname) && preg_match($pattern, $entry)) { <br /> call_user_func($callback, $fullname); <br /> } <br /> } <br />} <br /></code> Fri, 15 Jun 2007 13:17:56 GMT http://snippets.dzone.com/posts/show/4147 troelskn (Troels) http://snippets.dzone.com/posts/show/3545 Calculates all combinations, including incomplete results. <br /><code> <br />combine([1,2]) == [[1], [2], [1,2]]; <br /></code> <br /><code> <br />var combine = function(a) { <br /> var fn = function(n, src, got, all) { <br /> if (n == 0) { <br /> if (got.length > 0) { <br /> all[all.length] = got; <br /> } <br /> return; <br /> } <br /> for (var j = 0; j < src.length; j++) { <br /> fn(n - 1, src.slice(j + 1), got.concat([src[j]]), all); <br /> } <br /> return; <br /> } <br /> var all = []; <br /> for (var i=0; i < a.length; i++) { <br /> fn(i, a, [], all); <br /> } <br /> all.push(a); <br /> return all; <br />} <br /></code> Mon, 19 Feb 2007 12:51:44 GMT http://snippets.dzone.com/posts/show/3545 troelskn (Troels)