<?php 
 
/** 
 * This file is part of the CodeIgniter 4 framework. 
 * 
 * (c) CodeIgniter Foundation <[email protected]> 
 * 
 * For the full copyright and license information, please view the LICENSE 
 * file that was distributed with this source code. 
 */ 
 
// -------------------------------------------------------------------- 
 
/** 
 * CodeIgniter Inflector Helpers 
 */ 
if (! function_exists('singular')) 
{ 
    /** 
     * Singular 
     * 
     * Takes a plural word and makes it singular 
     * 
     * @param string $string Input string 
     * 
     * @return string 
     */ 
    function singular(string $string): string 
    { 
        $result = $string; 
 
        if (! is_pluralizable($result)) 
        { 
            return $result; 
        } 
 
        //Arranged in order. 
        $singularRules = [ 
            '/(matr)ices$/'                                                   => '\1ix', 
            '/(vert|ind)ices$/'                                               => '\1ex', 
            '/^(ox)en/'                                                       => '\1', 
            '/(alias)es$/'                                                    => '\1', 
            '/([octop|vir])i$/'                                               => '\1us', 
            '/(cris|ax|test)es$/'                                             => '\1is', 
            '/(shoe)s$/'                                                      => '\1', 
            '/(o)es$/'                                                        => '\1', 
            '/(bus|campus)es$/'                                               => '\1', 
            '/([m|l])ice$/'                                                   => '\1ouse', 
            '/(x|ch|ss|sh)es$/'                                               => '\1', 
            '/(m)ovies$/'                                                     => '\1\2ovie', 
            '/(s)eries$/'                                                     => '\1\2eries', 
            '/([^aeiouy]|qu)ies$/'                                            => '\1y', 
            '/([lr])ves$/'                                                    => '\1f', 
            '/(tive)s$/'                                                      => '\1', 
            '/(hive)s$/'                                                      => '\1', 
            '/([^f])ves$/'                                                    => '\1fe', 
            '/(^analy)ses$/'                                                  => '\1sis', 
            '/((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$/' => '\1\2sis', 
            '/([ti])a$/'                                                      => '\1um', 
            '/(p)eople$/'                                                     => '\1\2erson', 
            '/(m)en$/'                                                        => '\1an', 
            '/(s)tatuses$/'                                                   => '\1\2tatus', 
            '/(c)hildren$/'                                                   => '\1\2hild', 
            '/(n)ews$/'                                                       => '\1\2ews', 
            '/(quiz)zes$/'                                                    => '\1', 
            '/([^us])s$/'                                                     => '\1', 
        ]; 
 
        foreach ($singularRules as $rule => $replacement) 
        { 
            if (preg_match($rule, $result)) 
            { 
                $result = preg_replace($rule, $replacement, $result); 
                break; 
            } 
        } 
 
        return $result; 
    } 
} 
 
//-------------------------------------------------------------------- 
 
if (! function_exists('plural')) 
{ 
    /** 
     * Plural 
     * 
     * Takes a singular word and makes it plural 
     * 
     * @param string $string Input string 
     * 
     * @return string 
     */ 
    function plural(string $string): string 
    { 
        $result = $string; 
 
        if (! is_pluralizable($result)) 
        { 
            return $result; 
        } 
 
        $pluralRules = [ 
            '/(quiz)$/'               => '\1zes',    // quizzes 
            '/^(ox)$/'                => '\1\2en', // ox 
            '/([m|l])ouse$/'          => '\1ice', // mouse, louse 
            '/(matr|vert|ind)ix|ex$/' => '\1ices', // matrix, vertex, index 
            '/(x|ch|ss|sh)$/'         => '\1es', // search, switch, fix, box, process, address 
            '/([^aeiouy]|qu)y$/'      => '\1ies', // query, ability, agency 
            '/(hive)$/'               => '\1s', // archive, hive 
            '/(?:([^f])fe|([lr])f)$/' => '\1\2ves', // half, safe, wife 
            '/sis$/'                  => 'ses', // basis, diagnosis 
            '/([ti])um$/'             => '\1a', // datum, medium 
            '/(p)erson$/'             => '\1eople', // person, salesperson 
            '/(m)an$/'                => '\1en', // man, woman, spokesman 
            '/(c)hild$/'              => '\1hildren', // child 
            '/(buffal|tomat)o$/'      => '\1\2oes', // buffalo, tomato 
            '/(bu|campu)s$/'          => '\1\2ses', // bus, campus 
            '/(alias|status|virus)$/' => '\1es', // alias 
            '/(octop)us$/'            => '\1i', // octopus 
            '/(ax|cris|test)is$/'     => '\1es', // axis, crisis 
            '/s$/'                    => 's', // no change (compatibility) 
            '/$/'                     => 's', 
        ]; 
 
        foreach ($pluralRules as $rule => $replacement) 
        { 
            if (preg_match($rule, $result)) 
            { 
                $result = preg_replace($rule, $replacement, $result); 
                break; 
            } 
        } 
 
        return $result; 
    } 
} 
 
//-------------------------------------------------------------------- 
 
if (! function_exists('counted')) 
{ 
    /** 
     * Counted 
     * 
     * Takes a number and a word to return the plural or not 
     * E.g. 0 cats, 1 cat, 2 cats, ... 
     * 
     * @param integer $count  Number of items 
     * @param string  $string Input string 
     * 
     * @return string 
     */ 
    function counted(int $count, string $string): string 
    { 
        $result = "{$count} "; 
 
        return $result . ($count === 1 ? singular($string) : plural($string)); 
    } 
} 
 
//-------------------------------------------------------------------- 
 
if (! function_exists('camelize')) 
{ 
    /** 
     * Camelize 
     * 
     * Takes multiple words separated by spaces or 
     * underscores and converts them to camel case. 
     * 
     * @param  string $string Input string 
     * @return string 
     */ 
    function camelize(string $string): string 
    { 
        return lcfirst(str_replace(' ', '', ucwords(preg_replace('/[\s_]+/', ' ', $string)))); 
    } 
} 
 
//-------------------------------------------------------------------- 
 
if (! function_exists('pascalize')) 
{ 
    /** 
     * Pascalize 
     * 
     * Takes multiple words separated by spaces or 
     * underscores and converts them to Pascal case, 
     * which is camel case with an uppercase first letter. 
     * 
     * @param string $string Input string 
     * 
     * @return string 
     */ 
    function pascalize(string $string): string 
    { 
        return ucfirst(camelize($string)); 
    } 
} 
 
//-------------------------------------------------------------------- 
 
if (! function_exists('underscore')) 
{ 
    /** 
     * Underscore 
     * 
     * Takes multiple words separated by spaces and underscores them 
     * 
     * @param string $string Input string 
     * 
     * @return string 
     */ 
    function underscore(string $string): string 
    { 
        $replacement = trim($string); 
 
        return preg_replace('/[\s]+/', '_', $replacement); 
    } 
} 
 
//-------------------------------------------------------------------- 
 
if (! function_exists('humanize')) 
{ 
    /** 
     * Humanize 
     * 
     * Takes multiple words separated by the separator, 
     * camelizes and changes them to spaces 
     * 
     * @param string $string    Input string 
     * @param string $separator Input separator 
     * 
     * @return string 
     */ 
    function humanize(string $string, string $separator = '_'): string 
    { 
        $replacement = trim($string); 
 
        return ucwords 
                ( 
                preg_replace('/[' . $separator . ']+/', ' ', $replacement) 
        ); 
    } 
} 
 
// ------------------------------------------------------------------------ 
 
if (! function_exists('is_pluralizable')) 
{ 
    /** 
     * Checks if the given word has a plural version. 
     * 
     * @param string $word Word to check 
     * 
     * @return boolean 
     */ 
    function is_pluralizable(string $word): bool 
    { 
        $uncountables = in_array 
                ( 
            strtolower($word), [ 
                           'advice', 
                           'bravery', 
                           'butter', 
                           'chaos', 
                           'clarity', 
                           'coal', 
                           'courage', 
                           'cowardice', 
                           'curiosity', 
                           'education', 
                           'equipment', 
                           'evidence', 
                           'fish', 
                           'fun', 
                           'furniture', 
                           'greed', 
                           'help', 
                           'homework', 
                           'honesty', 
                           'information', 
                           'insurance', 
                           'jewelry', 
                           'knowledge', 
                           'livestock', 
                           'love', 
                           'luck', 
                           'marketing', 
                           'meta', 
                           'money', 
                           'mud', 
                           'news', 
                           'patriotism', 
                           'racism', 
                           'rice', 
                           'satisfaction', 
                           'scenery', 
                           'series', 
                           'sexism', 
                           'silence', 
                           'species', 
                           'spelling', 
                           'sugar', 
                           'water', 
                           'weather', 
                           'wisdom', 
                           'work', 
                       ], true); 
 
        return ! $uncountables; 
    } 
} 
 
// ------------------------------------------------------------------------ 
 
if (! function_exists('dasherize')) 
{ 
    /** 
     * Replaces underscores with dashes in the string. 
     * 
     * @param string $string Input string 
     * 
     * @return string 
     */ 
    function dasherize(string $string): string 
    { 
        return str_replace('_', '-', $string); 
    } 
} 
 
// ------------------------------------------------------------------------ 
 
if (! function_exists('ordinal')) 
{ 
    /** 
     * Returns the suffix that should be added to a 
     * number to denote the position in an ordered 
     * sequence such as 1st, 2nd, 3rd, 4th. 
     * 
     * @param integer $integer The integer to determine the suffix 
     * 
     * @return string 
     */ 
    function ordinal(int $integer): string 
    { 
        $suffixes = [ 
            'th', 
            'st', 
            'nd', 
            'rd', 
            'th', 
            'th', 
            'th', 
            'th', 
            'th', 
            'th', 
        ]; 
 
        return $integer % 100 >= 11 && $integer % 100 <= 13 ? 'th' : $suffixes[$integer % 10]; 
    } 
} 
 
// ------------------------------------------------------------------------ 
 
if (! function_exists('ordinalize')) 
{ 
    /** 
     * Turns a number into an ordinal string used 
     * to denote the position in an ordered sequence 
     * such as 1st, 2nd, 3rd, 4th. 
     * 
     * @param integer $integer The integer to ordinalize 
     * 
     * @return string 
     */ 
    function ordinalize(int $integer): string 
    { 
        return $integer . ordinal($integer); 
    } 
} 
 
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