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    <h3>Editing: GenericLanguageInflectorFactory.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

declare(strict_types=1);

namespace Doctrine\Inflector;

use Doctrine\Inflector\Rules\Ruleset;

use function array_unshift;

abstract class GenericLanguageInflectorFactory implements LanguageInflectorFactory
{
    /** @var Ruleset[] */
    private $singularRulesets = [];

    /** @var Ruleset[] */
    private $pluralRulesets = [];

    final public function __construct()
    {
        $this-&gt;singularRulesets[] = $this-&gt;getSingularRuleset();
        $this-&gt;pluralRulesets[]   = $this-&gt;getPluralRuleset();
    }

    final public function build(): Inflector
    {
        return new Inflector(
            new CachedWordInflector(new RulesetInflector(
                ...$this-&gt;singularRulesets
            )),
            new CachedWordInflector(new RulesetInflector(
                ...$this-&gt;pluralRulesets
            ))
        );
    }

    final public function withSingularRules(?Ruleset $singularRules, bool $reset = false): LanguageInflectorFactory
    {
        if ($reset) {
            $this-&gt;singularRulesets = [];
        }

        if ($singularRules instanceof Ruleset) {
            array_unshift($this-&gt;singularRulesets, $singularRules);
        }

        return $this;
    }

    final public function withPluralRules(?Ruleset $pluralRules, bool $reset = false): LanguageInflectorFactory
    {
        if ($reset) {
            $this-&gt;pluralRulesets = [];
        }

        if ($pluralRules instanceof Ruleset) {
            array_unshift($this-&gt;pluralRulesets, $pluralRules);
        }

        return $this;
    }

    abstract protected function getSingularRuleset(): Ruleset;

    abstract protected function getPluralRuleset(): Ruleset;
}
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