yolk\helpers\Inflector

Complexity

Total Complexity

12

Size/Duplication

Total Lines	129
Duplicated Lines	37.21 %

Coupling/Cohesion

Components	1
Dependencies	0

Importance

Changes	2
Bugs	1	Features	1

2 Methods

Rating	Name	Duplication	Size	Complexity
B	pluralise()	26	26	6
B	singularise()	22	22	6

<?php
/*
 * This file is part of Yolk - Gamer Network's PHP Framework.
 *
 * Copyright (c) 2013 Gamer Network Ltd.
 *
 * Distributed under the MIT License, a copy of which is available in the
 * LICENSE file that was bundled with this package, or online at:
 * https://github.com/gamernetwork/yolk-core
 */

namespace yolk\helpers;

/**
 *
 * Inflector implementation from: http://subosito.com/inflector-in-symfony-2
 */
class Inflector {

	protected static $plural = array(
		'/(quiz)$/i'               => "$1zes",
		'/^(ox)$/i'                => "$1en",
		'/([m|l])ouse$/i'          => "$1ice",
		'/(matr|vert|ind)ix|ex$/i' => "$1ices",
		'/(x|ch|ss|sh)$/i'         => "$1es",
		'/([^aeiouy]|qu)y$/i'      => "$1ies",
		'/(hive)$/i'               => "$1s",
		'/(?:([^f])fe|([lr])f)$/i' => "$1$2ves",
		'/(shea|lea|loa|thie)f$/i' => "$1ves",
		'/sis$/i'                  => "ses",
		'/([ti])um$/i'             => "$1a",
		'/(tomat|potat|ech|her|vet)o$/i'=> "$1oes",
		'/(bu)s$/i'                => "$1ses",
		'/(alias)$/i'              => "$1es",
		'/(ax|test)is$/i'          => "$1es",
		'/(us)$/i'                 => "$1es",
		'/s$/i'                    => "s",
		'/$/'                      => "s"
	);

	protected static $singular = array(
		'/(quiz)zes$/i'             => "$1",
		'/(matr)ices$/i'            => "$1ix",
		'/(vert|ind)ices$/i'        => "$1ex",
		'/^(ox)en$/i'               => "$1",
		'/(alias)es$/i'             => "$1",
		'/(cris|ax|test)es$/i'      => "$1is",
		'/(shoe)s$/i'               => "$1",
		'/(o)es$/i'                 => "$1",
		'/(bus)es$/i'               => "$1",
		'/([m|l])ice$/i'            => "$1ouse",
		'/(x|ch|ss|sh)es$/i'        => "$1",
		'/(m)ovies$/i'              => "$1ovie",
		'/(s)eries$/i'              => "$1eries",
		'/([^aeiouy]|qu)ies$/i'     => "$1y",
		'/([lr])ves$/i'             => "$1f",
		'/(tive)s$/i'               => "$1",
		'/(hive)s$/i'               => "$1",
		'/(li|wi|kni)ves$/i'        => "$1fe",
		'/(shea|loa|lea|thie)ves$/i'=> "$1f",
		'/(^analy)ses$/i'           => "$1sis",
		'/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$/i'  => "$1$2sis",
		'/([ti])a$/i'               => "$1um",
		'/(n)ews$/i'                => "$1ews",
		'/(h|bl)ouses$/i'           => "$1ouse",
		'/(corpse)s$/i'             => "$1",
		'/(us)es$/i'                => "$1",
		'/s$/i'                     => ""
	);

	protected static $irregular = array(
		'move'   => 'moves',
		'foot'   => 'feet',
		'goose'  => 'geese',
		'sex'    => 'sexes',
		'child'  => 'children',
		'man'    => 'men',
		'tooth'  => 'teeth',
		'person' => 'people'
	);

	protected static $uncountable = array(
		'sheep',
		'fish',
		'deer',
		'series',
		'species',
		'money',
		'rice',
		'information',
		'equipment'
	);

	// TODO: cache results to speed up subsequent use?
	public static function pluralise( $string ) {

		// save some time in the case that singular and plural are the same
		if ( in_array( mb_strtolower( $string ), self::$uncountable ) )
			return $string;


		// check for irregular singular forms
		foreach ( self::$irregular as $pattern => $result )
		{
			$pattern = '/' . $pattern . '$/iu';

			if ( preg_match( $pattern, $string ) )
				return preg_replace( $pattern, $result, $string);
		}

		// check for matches using regular expressions
		foreach ( self::$plural as $pattern => $result )
		{
			if ( preg_match( $pattern, $string ) )
				return preg_replace( $pattern, $result, $string );
		}

		return $string;

	}

	// TODO: cache results to speed up subsequent use?
	public static function singularise( $string ) {

		// save some time in the case that singular and plural are the same
		if ( in_array(mb_strtolower($string), self::$uncountable) )
			return $string;

		// check for irregular plural forms
		foreach( self::$irregular as $result => $pattern ) {
			$pattern = '/' . $pattern . '$/iu';
			if( preg_match($pattern, $string) )
				return preg_replace($pattern, $result, $string);
		}

		// check for matches using regular expressions
		foreach( self::$singular as $pattern => $result ) {
			if( preg_match($pattern, $string) )
				return preg_replace($pattern, $result, $string);
		}

		return $string;

	}

}

// EOF