GravInstaller.php

<?php

namespace Composer\Installers;

class GravInstaller extends BaseInstaller {
    
    /** @var array<string, string> */
    protected $locations = array(
        'plugin' => 'user/plugins/{$name}/',
        'theme' => 'user/themes/{$name}/',
    );
    
    /**
     * Format package name
     */
    public function inflectPackageVars(array $vars) : array {
        $restrictedWords = implode('|', array_keys($this->locations));
        $vars['name'] = strtolower($vars['name']);
        $vars['name'] = $this->pregReplace('/^(?:grav-)?(?:(?:' . $restrictedWords . ')-)?(.*?)(?:-(?:' . $restrictedWords . '))?$/ui', '$1', $vars['name']);
        return $vars;
    }

}