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<?php/** This file is part of the Symfony package.** (c) Fabien Potencier <fabien@symfony.com>** For the full copyright and license information, please view the LICENSE* file that was distributed with this source code.*/namespace Symfony\Component\String\Inflector;final class EnglishInflector implements InflectorInterface{/*** Map English plural to singular suffixes.** @see http://english-zone.com/spelling/plurals.html*/private const PLURAL_MAP = [// First entry: plural suffix, reversed// Second entry: length of plural suffix// Third entry: Whether the suffix may succeed a vocal// Fourth entry: Whether the suffix may succeed a consonant// Fifth entry: singular suffix, normal// bacteria (bacterium), criteria (criterion), phenomena (phenomenon)['a', 1, true, true, ['on', 'um']],// nebulae (nebula)['ea', 2, true, true, 'a'],// services (service)['secivres', 8, true, true, 'service'],// mice (mouse), lice (louse)['eci', 3, false, true, 'ouse'],// geese (goose)['esee', 4, false, true, 'oose'],// fungi (fungus), alumni (alumnus), syllabi (syllabus), radii (radius)['i', 1, true, true, 'us'],// men (man), women (woman)['nem', 3, true, true, 'man'],// children (child)['nerdlihc', 8, true, true, 'child'],// oxen (ox)['nexo', 4, false, false, 'ox'],// indices (index), appendices (appendix), prices (price)['seci', 4, false, true, ['ex', 'ix', 'ice']],// selfies (selfie)['seifles', 7, true, true, 'selfie'],// zombies (zombie)['seibmoz', 7, true, true, 'zombie'],// movies (movie)['seivom', 6, true, true, 'movie'],// conspectuses (conspectus), prospectuses (prospectus)['sesutcep', 8, true, true, 'pectus'],// feet (foot)['teef', 4, true, true, 'foot'],// geese (goose)['eseeg', 5, true, true, 'goose'],// teeth (tooth)['hteet', 5, true, true, 'tooth'],// news (news)['swen', 4, true, true, 'news'],// series (series)['seires', 6, true, true, 'series'],// babies (baby)['sei', 3, false, true, 'y'],// accesses (access), addresses (address), kisses (kiss)['sess', 4, true, false, 'ss'],// analyses (analysis), ellipses (ellipsis), fungi (fungus),// neuroses (neurosis), theses (thesis), emphases (emphasis),// oases (oasis), crises (crisis), houses (house), bases (base),// atlases (atlas)['ses', 3, true, true, ['s', 'se', 'sis']],// objectives (objective), alternative (alternatives)['sevit', 5, true, true, 'tive'],// drives (drive)['sevird', 6, false, true, 'drive'],// lives (life), wives (wife)['sevi', 4, false, true, 'ife'],// moves (move)['sevom', 5, true, true, 'move'],// hooves (hoof), dwarves (dwarf), elves (elf), leaves (leaf), caves (cave), staves (staff)['sev', 3, true, true, ['f', 've', 'ff']],// axes (axis), axes (ax), axes (axe)['sexa', 4, false, false, ['ax', 'axe', 'axis']],// indexes (index), matrixes (matrix)['sex', 3, true, false, 'x'],// quizzes (quiz)['sezz', 4, true, false, 'z'],// bureaus (bureau)['suae', 4, false, true, 'eau'],// fees (fee), trees (tree), employees (employee)['see', 3, true, true, 'ee'],// edges (edge)['segd', 4, true, true, 'dge'],// roses (rose), garages (garage), cassettes (cassette),// waltzes (waltz), heroes (hero), bushes (bush), arches (arch),// shoes (shoe)['se', 2, true, true, ['', 'e']],// tags (tag)['s', 1, true, true, ''],// chateaux (chateau)['xuae', 4, false, true, 'eau'],// people (person)['elpoep', 6, true, true, 'person'],];/*** Map English singular to plural suffixes.** @see http://english-zone.com/spelling/plurals.html*/private const SINGULAR_MAP = [// First entry: singular suffix, reversed// Second entry: length of singular suffix// Third entry: Whether the suffix may succeed a vocal// Fourth entry: Whether the suffix may succeed a consonant// Fifth entry: plural suffix, normal// criterion (criteria)['airetirc', 8, false, false, 'criterion'],// nebulae (nebula)['aluben', 6, false, false, 'nebulae'],// children (child)['dlihc', 5, true, true, 'children'],// prices (price)['eci', 3, false, true, 'ices'],// services (service)['ecivres', 7, true, true, 'services'],// lives (life), wives (wife)['efi', 3, false, true, 'ives'],// selfies (selfie)['eifles', 6, true, true, 'selfies'],// movies (movie)['eivom', 5, true, true, 'movies'],// lice (louse)['esuol', 5, false, true, 'lice'],// mice (mouse)['esuom', 5, false, true, 'mice'],// geese (goose)['esoo', 4, false, true, 'eese'],// houses (house), bases (base)['es', 2, true, true, 'ses'],// geese (goose)['esoog', 5, true, true, 'geese'],// caves (cave)['ev', 2, true, true, 'ves'],// drives (drive)['evird', 5, false, true, 'drives'],// objectives (objective), alternative (alternatives)['evit', 4, true, true, 'tives'],// moves (move)['evom', 4, true, true, 'moves'],// staves (staff)['ffats', 5, true, true, 'staves'],// hooves (hoof), dwarves (dwarf), elves (elf), leaves (leaf)['ff', 2, true, true, 'ffs'],// hooves (hoof), dwarves (dwarf), elves (elf), leaves (leaf)['f', 1, true, true, ['fs', 'ves']],// arches (arch)['hc', 2, true, true, 'ches'],// bushes (bush)['hs', 2, true, true, 'shes'],// teeth (tooth)['htoot', 5, true, true, 'teeth'],// bacteria (bacterium), criteria (criterion), phenomena (phenomenon)['mu', 2, true, true, 'a'],// men (man), women (woman)['nam', 3, true, true, 'men'],// people (person)['nosrep', 6, true, true, ['persons', 'people']],// bacteria (bacterium), criteria (criterion), phenomena (phenomenon)['noi', 3, true, true, 'ions'],// coupon (coupons)['nop', 3, true, true, 'pons'],// seasons (season), treasons (treason), poisons (poison), lessons (lesson)['nos', 3, true, true, 'sons'],// bacteria (bacterium), criteria (criterion), phenomena (phenomenon)['no', 2, true, true, 'a'],// echoes (echo)['ohce', 4, true, true, 'echoes'],// heroes (hero)['oreh', 4, true, true, 'heroes'],// atlases (atlas)['salta', 5, true, true, 'atlases'],// irises (iris)['siri', 4, true, true, 'irises'],// analyses (analysis), ellipses (ellipsis), neuroses (neurosis)// theses (thesis), emphases (emphasis), oases (oasis),// crises (crisis)['sis', 3, true, true, 'ses'],// accesses (access), addresses (address), kisses (kiss)['ss', 2, true, false, 'sses'],// syllabi (syllabus)['suballys', 8, true, true, 'syllabi'],// buses (bus)['sub', 3, true, true, 'buses'],// circuses (circus)['suc', 3, true, true, 'cuses'],// conspectuses (conspectus), prospectuses (prospectus)['sutcep', 6, true, true, 'pectuses'],// fungi (fungus), alumni (alumnus), syllabi (syllabus), radii (radius)['su', 2, true, true, 'i'],// news (news)['swen', 4, true, true, 'news'],// feet (foot)['toof', 4, true, true, 'feet'],// chateaux (chateau), bureaus (bureau)['uae', 3, false, true, ['eaus', 'eaux']],// oxen (ox)['xo', 2, false, false, 'oxen'],// hoaxes (hoax)['xaoh', 4, true, false, 'hoaxes'],// indices (index)['xedni', 5, false, true, ['indicies', 'indexes']],// boxes (box)['xo', 2, false, true, 'oxes'],// indexes (index), matrixes (matrix)['x', 1, true, false, ['cies', 'xes']],// appendices (appendix)['xi', 2, false, true, 'ices'],// babies (baby)['y', 1, false, true, 'ies'],// quizzes (quiz)['ziuq', 4, true, false, 'quizzes'],// waltzes (waltz)['z', 1, true, true, 'zes'],];/*** A list of words which should not be inflected, reversed.*/private const UNINFLECTED = ['',// data'atad',// deer'reed',// feedback'kcabdeef',// fish'hsif',// info'ofni',// moose'esoom',// series'seires',// sheep'peehs',// species'seiceps',];public function singularize(string $plural): array{$pluralRev = strrev($plural);$lowerPluralRev = strtolower($pluralRev);$pluralLength = \strlen($lowerPluralRev);// Check if the word is one which is not inflected, return early if soif (\in_array($lowerPluralRev, self::UNINFLECTED, true)) {return [$plural];}// The outer loop iterates over the entries of the plural table// The inner loop $j iterates over the characters of the plural suffix// in the plural table to compare them with the characters of the actual// given plural suffixforeach (self::PLURAL_MAP as $map) {$suffix = $map[0];$suffixLength = $map[1];$j = 0;// Compare characters in the plural table and of the suffix of the// given plural one by onewhile ($suffix[$j] === $lowerPluralRev[$j]) {// Let $j point to the next character++$j;// Successfully compared the last character// Add an entry with the singular suffix to the singular arrayif ($j === $suffixLength) {// Is there any character preceding the suffix in the plural string?if ($j < $pluralLength) {$nextIsVocal = str_contains('aeiou', $lowerPluralRev[$j]);if (!$map[2] && $nextIsVocal) {// suffix may not succeed a vocal but next char is onebreak;}if (!$map[3] && !$nextIsVocal) {// suffix may not succeed a consonant but next char is onebreak;}}$newBase = substr($plural, 0, $pluralLength - $suffixLength);$newSuffix = $map[4];// Check whether the first character in the plural suffix// is uppercased. If yes, uppercase the first character in// the singular suffix too$firstUpper = ctype_upper($pluralRev[$j - 1]);if (\is_array($newSuffix)) {$singulars = [];foreach ($newSuffix as $newSuffixEntry) {$singulars[] = $newBase.($firstUpper ? ucfirst($newSuffixEntry) : $newSuffixEntry);}return $singulars;}return [$newBase.($firstUpper ? ucfirst($newSuffix) : $newSuffix)];}// Suffix is longer than wordif ($j === $pluralLength) {break;}}}// Assume that plural and singular is identicalreturn [$plural];}public function pluralize(string $singular): array{$singularRev = strrev($singular);$lowerSingularRev = strtolower($singularRev);$singularLength = \strlen($lowerSingularRev);// Check if the word is one which is not inflected, return early if soif (\in_array($lowerSingularRev, self::UNINFLECTED, true)) {return [$singular];}// The outer loop iterates over the entries of the singular table// The inner loop $j iterates over the characters of the singular suffix// in the singular table to compare them with the characters of the actual// given singular suffixforeach (self::SINGULAR_MAP as $map) {$suffix = $map[0];$suffixLength = $map[1];$j = 0;// Compare characters in the singular table and of the suffix of the// given plural one by onewhile ($suffix[$j] === $lowerSingularRev[$j]) {// Let $j point to the next character++$j;// Successfully compared the last character// Add an entry with the plural suffix to the plural arrayif ($j === $suffixLength) {// Is there any character preceding the suffix in the plural string?if ($j < $singularLength) {$nextIsVocal = str_contains('aeiou', $lowerSingularRev[$j]);if (!$map[2] && $nextIsVocal) {// suffix may not succeed a vocal but next char is onebreak;}if (!$map[3] && !$nextIsVocal) {// suffix may not succeed a consonant but next char is onebreak;}}$newBase = substr($singular, 0, $singularLength - $suffixLength);$newSuffix = $map[4];// Check whether the first character in the singular suffix// is uppercased. If yes, uppercase the first character in// the singular suffix too$firstUpper = ctype_upper($singularRev[$j - 1]);if (\is_array($newSuffix)) {$plurals = [];foreach ($newSuffix as $newSuffixEntry) {$plurals[] = $newBase.($firstUpper ? ucfirst($newSuffixEntry) : $newSuffixEntry);}return $plurals;}return [$newBase.($firstUpper ? ucfirst($newSuffix) : $newSuffix)];}// Suffix is longer than wordif ($j === $singularLength) {break;}}}// Assume that plural is singular with a trailing `s`return [$singular.'s'];}}