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prepend example

$suffix = preg_quote($suffix);
        $regex = '{('.$suffix.')(?:'.$suffix.')++$}D';

        return $this->replaceMatches($regex.($this->ignoreCase ? 'i' : ''), '$1');
    }

    public function ensureStart(string $prefix): static
    {
        $prefix = new static($prefix);

        if (!$this->startsWith($prefix)) {
            return $this->prepend($prefix);
        }

        $str = clone $this;
        $i = $prefixLen = $prefix->length();

        while ($this->indexOf($prefix, $i) === $i) {
            $str = $str->slice($prefixLen);
            $i += $prefixLen;
        }

        return $str;
    }

'İIıi Σσς Déjà',
                    ['Déjà', 'Σσς ', 'İIıi '],
                ],
            ]
        );
    }

    public function testPrependInvalidUtf8String()
    {
        $this->expectException(InvalidArgumentException::class);

        static::createFromString('Symfony')->prepend("\xE9");
    }

    public static function provideBeforeAfter(): array
    {
        return array_merge(
            parent::provideBeforeAfter(),
            [
                ['jàdéjà', 'jà', 'déjàdéjà', 0, false],
                ['dé', 'jà', 'déjàdéjà', 0, true],
            ]
        );
    }

/** @var AuthenticatorFactoryInterface[] */
    private array $sortedFactories = [];
    private array $userProviderFactories = [];

    /** * @return void */
    public function prepend(ContainerBuilder $container)
    {
        foreach ($this->getSortedFactories() as $factory) {
            if ($factory instanceof PrependExtensionInterface) {
                $factory->prepend($container);
            }
        }
    }

    /** * @return void */
    public function load(array $configs, ContainerBuilder $container)
    {
        if (!array_filter($configs)) {
            trigger_deprecation('symfony/security-bundle', '6.3', 'Enabling bundle "%s" and not configuring it is deprecated.', SecurityBundle::class);

    public function process(ContainerBuilder $container)
    {
        $parameters = $container->getParameterBag()->all();
        $definitions = $container->getDefinitions();
        $aliases = $container->getAliases();
        $exprLangProviders = $container->getExpressionLanguageProviders();
        $configAvailable = class_exists(BaseNode::class);

        foreach ($container->getExtensions() as $extension) {
            if ($extension instanceof PrependExtensionInterface) {
                $extension->prepend($container);
            }
        }

        foreach ($container->getExtensions() as $name => $extension) {
            if (!$config = $container->getExtensionConfig($name)) {
                // this extension was not called                 continue;
            }
            $resolvingBag = $container->getParameterBag();
            if ($resolvingBag instanceof EnvPlaceholderParameterBag && $extension instanceof Extension) {
                // create a dedicated bag so that we can track env vars per-extension

        ];
    }

    /** * @dataProvider provideAppend */
    public function testPrepend(string $expected, array $prefixes)
    {
        $instance = static::createFromString('');
        foreach (array_reverse($prefixes) as $suffix) {
            $instance = $instance->prepend($suffix);
        }

        $this->assertEquals(static::createFromString($expected), $instance);

        $instance = static::createFromString('')->prepend(...$prefixes);

        $this->assertEquals(static::createFromString($expected), $instance);
    }

    /** * @dataProvider provideTrim */

  protected function createAppendOp(PackageInterface $package, OperationData $operation_data) {
    $package_name = $package->getName();
    $package_path = $this->getPackagePath($package);
    $prepend_source_file = NULL;
    $append_source_file = NULL;
    $default_data_file = NULL;
    if ($operation_data->hasPrepend()) {
      $prepend_source_file = ScaffoldFilePath::sourcePath($package_name, $package_path, $operation_data->destination(), $operation_data->prepend());
    }
    if ($operation_data->hasAppend()) {
      $append_source_file = ScaffoldFilePath::sourcePath($package_name, $package_path, $operation_data->destination(), $operation_data->append());
    }
    if ($operation_data->hasDefault()) {
      $default_data_file = ScaffoldFilePath::sourcePath($package_name, $package_path, $operation_data->destination(), $operation_data->default());
    }
    if (!$this->hasContent($prepend_source_file) && !$this->hasContent($append_source_file)) {
      $message = ' - Keep <info>[dest-rel-path]</info> unchanged: no content to prepend / append was provided.';
      return new SkipOp($message);
    }

        $padLen = $pad->length();
        $freeLen = $len - $sLen;
        $len = $freeLen % $padLen;

        switch ($type) {
            case \STR_PAD_RIGHT:
                return $this->append(str_repeat($pad->string, intdiv($freeLen, $padLen)).($len ? $pad->slice(0, $len) : ''));

            case \STR_PAD_LEFT:
                return $this->prepend(str_repeat($pad->string, intdiv($freeLen, $padLen)).($len ? $pad->slice(0, $len) : ''));

            case \STR_PAD_BOTH:
                $freeLen /= 2;

                $rightLen = ceil($freeLen);
                $len = $rightLen % $padLen;
                $str = $this->append(str_repeat($pad->string, intdiv($rightLen, $padLen)).($len ? $pad->slice(0, $len) : ''));

                $leftLen = floor($freeLen);
                $len = $leftLen % $padLen;

public function getAlias(): string
            {
                return 'third';
            }
        };

        $container = $this->createContainerBuilder();
        $container->registerExtension($thirdExtension);
        $container->loadFromExtension('third', ['foo' => 'bar']);

        $extension->prepend($container);

        return $container;
    }

    protected function processLoadExtension(ExtensionInterface $extension, array $configs): ContainerBuilder
    {
        $container = $this->createContainerBuilder();

        $extension->load($configs, $container);

        return $container;
    }