Initial Import
diff --git a/system/helpers/string_helper.php b/system/helpers/string_helper.php
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+++ b/system/helpers/string_helper.php
@@ -0,0 +1,154 @@
+<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
+/**
+ * Code Igniter
+ *
+ * An open source application development framework for PHP 4.3.2 or newer
+ *
+ * @package CodeIgniter
+ * @author Rick Ellis
+ * @copyright Copyright (c) 2006, pMachine, Inc.
+ * @license http://www.codeignitor.com/user_guide/license.html
+ * @link http://www.codeigniter.com
+ * @since Version 1.0
+ * @filesource
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Code Igniter String Helpers
+ *
+ * @package CodeIgniter
+ * @subpackage Helpers
+ * @category Helpers
+ * @author Rick Ellis
+ * @link http://www.codeigniter.com/user_guide/helpers/string_helper.html
+ */
+
+// ------------------------------------------------------------------------
+
+/**
+ * Trim Slashes
+ *
+ * Removes any leading/traling slashes from a string:
+ *
+ * /this/that/theother/
+ *
+ * becomes:
+ *
+ * this/that/theother
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+function trim_slashes($str)
+{
+ return preg_replace("|^/*(.+?)/*$|", "\\1", $str);
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Reduce Double Slashes
+ *
+ * Converts double slashes in a string to a single slash,
+ * except those found in http://
+ *
+ * http://www.some-site.com//index.php
+ *
+ * becomes:
+ *
+ * http://www.some-site.com/index.php
+ *
+ * @access public
+ * @param string
+ * @return string
+ */
+function reduce_double_slashes($str)
+{
+ return preg_replace("#([^:])//+#", "\\1/", $str);
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Create a Random String
+ *
+ * Useful for generating passwords or hashes.
+ *
+ * @access public
+ * @param string type of random string. Options: alunum, numeric, nozero, unique
+ * @param integer number of characters
+ * @return string
+ */
+function random_string($type = 'alnum', $len = 8)
+{
+ switch($type)
+ {
+ case 'alnum' :
+ case 'numeric' :
+ case 'nozero' :
+
+ switch ($type)
+ {
+ case 'alnum' : $pool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
+ break;
+ case 'numeric' : $pool = '0123456789';
+ break;
+ case 'nozero' : $pool = '123456789';
+ break;
+ }
+
+ $str = '';
+ for ($i=0; $i < $len; $i++)
+ {
+ $str .= substr($pool, mt_rand(0, strlen($pool) -1), 1);
+ }
+ return $str;
+ break;
+ case 'unique' : return md5(uniqid(mt_rand()));
+ break;
+ }
+}
+// ------------------------------------------------------------------------
+
+/**
+ * Alternator
+ *
+ * Allows strings to be alternated. See docs...
+ *
+ * @access public
+ * @param string (as many parameters as needed)
+ * @return string
+ */
+function alternator()
+{
+ static $i;
+
+ if (func_num_args() == 0)
+ {
+ $i = 0;
+ return '';
+ }
+ $args = func_get_args();
+ return $args[($i++ % count($args))];
+}
+
+// ------------------------------------------------------------------------
+
+/**
+ * Repeater function
+ *
+ * @access public
+ * @param string
+ * @param integer number of repeats
+ * @return string
+ */
+function repeater($data, $num = 1)
+{
+ return str_repeat($data, $num);
+}
+
+
+?>
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