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<?php
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/**
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 * CodeIgniter
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 *
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 * An open source application development framework for PHP
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 *
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 * This content is released under the MIT License (MIT)
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 *
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 * Copyright (c) 2014 - 2016, British Columbia Institute of Technology
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 *
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 * @package	CodeIgniter
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 * @author	EllisLab Dev Team
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 * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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 * @copyright	Copyright (c) 2014 - 2016, British Columbia Institute of Technology (http://bcit.ca/)
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 * @license	http://opensource.org/licenses/MIT	MIT License
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 * @link	https://codeigniter.com
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 * @since	Version 1.0.0
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 * @filesource
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 */
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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 * CodeIgniter Inflector Helpers
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 *
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 * @package		CodeIgniter
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 * @subpackage	Helpers
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 * @category	Helpers
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 * @author		EllisLab Dev Team
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 * @link		https://codeigniter.com/user_guide/helpers/inflector_helper.html
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 */
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// --------------------------------------------------------------------
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if ( ! function_exists('singular'))
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{
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	/**
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	 * Singular
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	 *
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	 * Takes a plural word and makes it singular
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	 *
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	 * @param	string	$str	Input string
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	 * @return	string
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	 */
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	function singular($str)
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	{
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		$result = strval($str);
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		if ( ! is_countable($result))
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		{
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			return $result;
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		}
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		$singular_rules = array(
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			'/(matr)ices$/'		=> '\1ix',
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			'/(vert|ind)ices$/'	=> '\1ex',
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			'/^(ox)en/'		=> '\1',
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			'/(alias)es$/'		=> '\1',
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			'/([octop|vir])i$/'	=> '\1us',
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			'/(cris|ax|test)es$/'	=> '\1is',
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			'/(shoe)s$/'		=> '\1',
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			'/(o)es$/'		=> '\1',
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			'/(bus|campus)es$/'	=> '\1',
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			'/([m|l])ice$/'		=> '\1ouse',
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			'/(x|ch|ss|sh)es$/'	=> '\1',
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			'/(m)ovies$/'		=> '\1\2ovie',
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			'/(s)eries$/'		=> '\1\2eries',
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			'/([^aeiouy]|qu)ies$/'	=> '\1y',
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			'/([lr])ves$/'		=> '\1f',
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			'/(tive)s$/'		=> '\1',
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			'/(hive)s$/'		=> '\1',
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			'/([^f])ves$/'		=> '\1fe',
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			'/(^analy)ses$/'	=> '\1sis',
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			'/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$/' => '\1\2sis',
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			'/([ti])a$/'		=> '\1um',
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			'/(p)eople$/'		=> '\1\2erson',
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			'/(m)en$/'		=> '\1an',
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			'/(s)tatuses$/'		=> '\1\2tatus',
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			'/(c)hildren$/'		=> '\1\2hild',
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			'/(n)ews$/'		=> '\1\2ews',
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			'/([^us])s$/'		=> '\1'
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		);
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		foreach ($singular_rules as $rule => $replacement)
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		{
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			if (preg_match($rule, $result))
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			{
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				$result = preg_replace($rule, $replacement, $result);
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				break;
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			}
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		}
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		return $result;
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	}
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}
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// --------------------------------------------------------------------
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if ( ! function_exists('plural'))
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{
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	/**
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	 * Plural
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	 *
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	 * Takes a singular word and makes it plural
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	 *
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	 * @param	string	$str	Input string
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	 * @return	string
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	 */
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	function plural($str)
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	{
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		$result = strval($str);
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		if ( ! is_countable($result))
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		{
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			return $result;
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		}
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		$plural_rules = array(
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			'/(quiz)$/'                => '\1zes',      // quizzes
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			'/^(ox)$/'                 => '\1\2en',     // ox
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			'/([m|l])ouse$/'           => '\1ice',      // mouse, louse
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			'/(matr|vert|ind)ix|ex$/'  => '\1ices',     // matrix, vertex, index
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			'/(x|ch|ss|sh)$/'          => '\1es',       // search, switch, fix, box, process, address
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			'/([^aeiouy]|qu)y$/'       => '\1ies',      // query, ability, agency
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			'/(hive)$/'                => '\1s',        // archive, hive
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			'/(?:([^f])fe|([lr])f)$/'  => '\1\2ves',    // half, safe, wife
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			'/sis$/'                   => 'ses',        // basis, diagnosis
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			'/([ti])um$/'              => '\1a',        // datum, medium
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			'/(p)erson$/'              => '\1eople',    // person, salesperson
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			'/(m)an$/'                 => '\1en',       // man, woman, spokesman
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			'/(c)hild$/'               => '\1hildren',  // child
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			'/(buffal|tomat)o$/'       => '\1\2oes',    // buffalo, tomato
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			'/(bu|campu)s$/'           => '\1\2ses',    // bus, campus
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			'/(alias|status|virus)$/'  => '\1es',       // alias
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			'/(octop)us$/'             => '\1i',        // octopus
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			'/(ax|cris|test)is$/'      => '\1es',       // axis, crisis
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			'/s$/'                     => 's',          // no change (compatibility)
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			'/$/'                      => 's',
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		);
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		foreach ($plural_rules as $rule => $replacement)
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		{
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			if (preg_match($rule, $result))
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			{
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				$result = preg_replace($rule, $replacement, $result);
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				break;
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			}
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		}
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		return $result;
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	}
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}
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// --------------------------------------------------------------------
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if ( ! function_exists('camelize'))
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{
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	/**
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	 * Camelize
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	 *
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	 * Takes multiple words separated by spaces or underscores and camelizes them
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	 *
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	 * @param	string	$str	Input string
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	 * @return	string
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	 */
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	function camelize($str)
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	{
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		return strtolower($str[0]).substr(str_replace(' ', '', ucwords(preg_replace('/[\s_]+/', ' ', $str))), 1);
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	}
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}
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// --------------------------------------------------------------------
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if ( ! function_exists('underscore'))
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{
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	/**
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	 * Underscore
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	 *
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	 * Takes multiple words separated by spaces and underscores them
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	 *
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	 * @param	string	$str	Input string
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	 * @return	string
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	 */
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	function underscore($str)
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	{
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		return preg_replace('/[\s]+/', '_', trim(MB_ENABLED ? mb_strtolower($str) : strtolower($str)));
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	}
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}
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// --------------------------------------------------------------------
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if ( ! function_exists('humanize'))
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{
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	/**
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	 * Humanize
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	 *
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	 * Takes multiple words separated by the separator and changes them to spaces
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	 *
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	 * @param	string	$str		Input string
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	 * @param 	string	$separator	Input separator
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	 * @return	string
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	 */
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	function humanize($str, $separator = '_')
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	{
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		return ucwords(preg_replace('/['.preg_quote($separator).']+/', ' ', trim(MB_ENABLED ? mb_strtolower($str) : strtolower($str))));
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	}
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}
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// --------------------------------------------------------------------
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228
if ( ! function_exists('is_countable'))
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{
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	/**
231
	 * Checks if the given word has a plural version.
232
	 *
233
	 * @param	string	$word	Word to check
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	 * @return	bool
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	 */
236
	function is_countable($word)
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	{
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		return ! in_array(
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			strtolower($word),
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			array(
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				'equipment', 'information', 'rice', 'money',
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				'species', 'series', 'fish', 'meta'
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			)
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		);
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	}
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}