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<?php
declare(strict_types=1);
namespace Doctrine\Inflector\Rules;
use Doctrine\Inflector\WordInflector;
use function array_keys;
use function array_values;
use function implode;
use function preg_match;
use function strtolower;
use function substr;
class Irregular implements WordInflector
{
/** @var Substitution[] */
private $substitutions;
/** @var string|null */
private $regex;
public function __construct(Substitution ...$substitutions)
foreach ($substitutions as $substitution) {
$this->substitutions[$substitution->getFrom()->getWord()] = $substitution;
}
/**
* @return Substitution[]
*/
public function getFlippedSubstitutions() : iterable
foreach ($this->substitutions as $substitution) {
yield new Substitution($substitution->getTo(), $substitution->getFrom());
public function getSubstitutions() : iterable
yield from array_values($this->substitutions);
public function inflect(string $word) : string
if (preg_match('/(.*)\\b(' . $this->getRegex() . ')$/i', $word, $regs) > 0) {
return $regs[1] . $word[0] . substr($this->substitutions[strtolower($regs[2])]->getTo()->getWord(), 1);
return $word;
private function getRegex() : string
if ($this->regex === null) {
$this->regex = '(?:' . implode('|', array_keys($this->substitutions)) . ')';
return $this->regex;
doctrine /
inflector
