535 lines
16 KiB
PHP
535 lines
16 KiB
PHP
|
<?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\Inflector;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Converts words between singular and plural forms.
|
||
|
|
*
|
||
|
|
* @author Bernhard Schussek <bschussek@gmail.com>
|
||
|
|
*/
|
||
|
|
final class Inflector
|
||
|
|
{
|
||
|
|
/**
|
||
|
|
* 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'],
|
||
|
|
|
||
|
|
// 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',
|
||
|
|
];
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This class should not be instantiated.
|
||
|
|
*/
|
||
|
|
private function __construct()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the singular form of a word.
|
||
|
|
*
|
||
|
|
* If the method can't determine the form with certainty, an array of the
|
||
|
|
* possible singulars is returned.
|
||
|
|
*
|
||
|
|
* @param string $plural A word in plural form
|
||
|
|
*
|
||
|
|
* @return string|array The singular form or an array of possible singular forms
|
||
|
|
*/
|
||
|
|
public static function singularize(string $plural)
|
||
|
|
{
|
||
|
|
$pluralRev = strrev($plural);
|
||
|
|
$lowerPluralRev = strtolower($pluralRev);
|
||
|
|
$pluralLength = \strlen($lowerPluralRev);
|
||
|
|
|
||
|
|
// Check if the word is one which is not inflected, return early if so
|
||
|
|
if (\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 suffix
|
||
|
|
foreach (self::PLURAL_MAP as $map) {
|
||
|
|
$suffix = $map[0];
|
||
|
|
$suffixLength = $map[1];
|
||
|
|
$j = 0;
|
||
|
|
|
||
|
|
// Compare characters in the plural table and of the suffix of the
|
||
|
|
// given plural one by one
|
||
|
|
while ($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 array
|
||
|
|
if ($j === $suffixLength) {
|
||
|
|
// Is there any character preceding the suffix in the plural string?
|
||
|
|
if ($j < $pluralLength) {
|
||
|
|
$nextIsVocal = false !== strpos('aeiou', $lowerPluralRev[$j]);
|
||
|
|
|
||
|
|
if (!$map[2] && $nextIsVocal) {
|
||
|
|
// suffix may not succeed a vocal but next char is one
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$map[3] && !$nextIsVocal) {
|
||
|
|
// suffix may not succeed a consonant but next char is one
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$newBase = substr($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) : $newSuffix);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Suffix is longer than word
|
||
|
|
if ($j === $pluralLength) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Assume that plural and singular is identical
|
||
|
|
return $plural;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Returns the plural form of a word.
|
||
|
|
*
|
||
|
|
* If the method can't determine the form with certainty, an array of the
|
||
|
|
* possible plurals is returned.
|
||
|
|
*
|
||
|
|
* @param string $singular A word in singular form
|
||
|
|
*
|
||
|
|
* @return string|array The plural form or an array of possible plural forms
|
||
|
|
*/
|
||
|
|
public static function pluralize(string $singular)
|
||
|
|
{
|
||
|
|
$singularRev = strrev($singular);
|
||
|
|
$lowerSingularRev = strtolower($singularRev);
|
||
|
|
$singularLength = \strlen($lowerSingularRev);
|
||
|
|
|
||
|
|
// Check if the word is one which is not inflected, return early if so
|
||
|
|
if (\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 suffix
|
||
|
|
foreach (self::SINGULAR_MAP as $map) {
|
||
|
|
$suffix = $map[0];
|
||
|
|
$suffixLength = $map[1];
|
||
|
|
$j = 0;
|
||
|
|
|
||
|
|
// Compare characters in the singular table and of the suffix of the
|
||
|
|
// given plural one by one
|
||
|
|
|
||
|
|
while ($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 array
|
||
|
|
if ($j === $suffixLength) {
|
||
|
|
// Is there any character preceding the suffix in the plural string?
|
||
|
|
if ($j < $singularLength) {
|
||
|
|
$nextIsVocal = false !== strpos('aeiou', $lowerSingularRev[$j]);
|
||
|
|
|
||
|
|
if (!$map[2] && $nextIsVocal) {
|
||
|
|
// suffix may not succeed a vocal but next char is one
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$map[3] && !$nextIsVocal) {
|
||
|
|
// suffix may not succeed a consonant but next char is one
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$newBase = substr($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) : $newSuffix);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Suffix is longer than word
|
||
|
|
if ($j === $singularLength) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Assume that plural is singular with a trailing `s`
|
||
|
|
return $singular.'s';
|
||
|
|
}
|
||
|
|
}
|