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<?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
 */
 
// ------------------------------------------------------------------------

/**
 * Inflector Class
 * 
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Inflection
 * @author		Rick Ellis
 * @link		http://www.codeigniter.com/user_guide/general/errors.html
 */
class CI_Inflector {


	/**
	 * Constructor
	 *
	 * @access	public
	 */
	function CI_Inflector()
	{
		log_message('debug', "Inflector Class Initialized");
	}
	// END CI_Inflector()
	
	// --------------------------------------------------------------------
	
	/**
	 * Singular
	 *
	 * Takes a plural word and makes it singular
	 *
	 * @access	public
	 * @param	string
	 * @return	str
	 */		
	function singular($str)
	{
		$str = strtolower(trim($str));
		$end = substr($str, -3);
		
		if ($end == 'ies')
		{
			$str = substr($str, 0, strlen($str)-3).'y';
		}
		else
		{
			$end = substr($str, -1);
			
			if ($end == 's')
			{
				$str = substr($str, 0, strlen($str)-1);
			}
		}
		
		return $str;
	}
	// END singular()
	
	// --------------------------------------------------------------------
	
	/**
	 * Plural
	 *
	 * Takes a singular word and makes it plural
	 *
	 * @access	public
	 * @param	string
	 * @return	str
	 */		
	function plural($str)
	{
		$str = strtolower(trim($str));
		$end = substr($str, -1);

		if ($end == 'y')
		{
			$str = substr($str, 0, strlen($str)-1).'ies';
		}
		elseif ($end != 's')
		{
			$str .= 's';
		}

		return $str;	
	}
	// END plural()
	
	// --------------------------------------------------------------------
	
	/**
	 * Camelize
	 *
	 * Takes multiple words separated by spaces or underscores and camelizes them
	 *
	 * @access	public
	 * @param	string
	 * @return	str
	 */		
	function camelize($str)
	{		
		$str = 'x'.strtolower(trim($str));
		$str = ucwords(preg_replace('/[\s_]+/', ' ', $str));
		return substr(str_replace(' ', '', $str), 1);
	}
	// END camelize()
	
	// --------------------------------------------------------------------
	
	/**
	 * Underscore
	 *
	 * Takes multiple words separated by spaces and underscores them
	 *
	 * @access	public
	 * @param	string
	 * @return	str
	 */		
	function underscore($str)
	{
		return preg_replace('/[\s]+/', '_', strtolower(trim($str)));
	}
	// END underscore()
	
	// --------------------------------------------------------------------
	
	/**
	 * Humanize
	 *
	 * Takes multiple words separated by underscores and changes them to spaces
	 *
	 * @access	public
	 * @param	string
	 * @return	str
	 */		
	function humanize($str)
	{
		return ucwords(preg_replace('/[_]+/', ' ', strtolower(trim($str))));
	}
	// END humanize()
	
}
// END CI_Inflector
?>