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SpanishInflector.php
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SpanishInflector.php
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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 SpanishInflector implements InflectorInterface
{
/**
* A list of all rules for pluralise.
*
* @see https://www.spanishdict.com/guide/spanish-plural-noun-forms
* @see https://www.rae.es/gram%C3%A1tica/morfolog%C3%ADa/la-formaci%C3%B3n-del-plural-plurales-en-s-y-plurales-en-es-reglas-generales
*/
// First entry: regex
// Second entry: replacement
private const PLURALIZE_REGEXP = [
// Specials sí, no
['/(sí|no)$/i', '\1es'],
// Words ending with vowel must use -s (RAE 3.2a, 3.2c)
['/(a|e|i|o|u|á|é|í|ó|ú)$/i', '\1s'],
// Word ending in s or x and the previous letter is accented (RAE 3.2n)
['/ás$/i', 'ases'],
['/és$/i', 'eses'],
['/ís$/i', 'ises'],
['/ós$/i', 'oses'],
['/ús$/i', 'uses'],
// Words ending in -ión must changed to -iones
['/ión$/i', '\1iones'],
// Words ending in some consonants must use -es (RAE 3.2k)
['/(l|r|n|d|j|s|x|ch|y)$/i', '\1es'],
// Word ending in z, must changed to ces
['/(z)$/i', 'ces'],
];
/**
* A list of all rules for singularize.
*/
private const SINGULARIZE_REGEXP = [
// Specials sí, no
['/(sí|no)es$/i', '\1'],
// Words ending in -ión must changed to -iones
['/iones$/i', '\1ión'],
// Word ending in z, must changed to ces
['/ces$/i', 'z'],
// Word ending in s or x and the previous letter is accented (RAE 3.2n)
['/(\w)ases$/i', '\1ás'],
['/eses$/i', 'és'],
['/ises$/i', 'ís'],
['/(\w{2,})oses$/i', '\1ós'],
['/(\w)uses$/i', '\1ús'],
// Words ending in some consonants and -es, must be the consonants
['/(l|r|n|d|j|s|x|ch|y)e?s$/i', '\1'],
// Words ended with vowel and s, must be vowel
['/(a|e|i|o|u|á|é|ó|í|ú)s$/i', '\1'],
];
private const UNINFLECTED_RULES = [
// Words ending with pies (RAE 3.2n)
'/.*(piés)$/i',
];
private const UNINFLECTED = '/^(lunes|martes|miércoles|jueves|viernes|análisis|torax|yo|pies)$/i';
public function singularize(string $plural): array
{
if ($this->isInflectedWord($plural)) {
return [$plural];
}
foreach (self::SINGULARIZE_REGEXP as $rule) {
[$regexp, $replace] = $rule;
if (1 === preg_match($regexp, $plural)) {
return [preg_replace($regexp, $replace, $plural)];
}
}
return [$plural];
}
public function pluralize(string $singular): array
{
if ($this->isInflectedWord($singular)) {
return [$singular];
}
foreach (self::PLURALIZE_REGEXP as $rule) {
[$regexp, $replace] = $rule;
if (1 === preg_match($regexp, $singular)) {
return [preg_replace($regexp, $replace, $singular)];
}
}
return [$singular.'s'];
}
private function isInflectedWord(string $word): bool
{
foreach (self::UNINFLECTED_RULES as $rule) {
if (1 === preg_match($rule, $word)) {
return true;
}
}
return 1 === preg_match(self::UNINFLECTED, $word);
}
}

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