PaddingViewHelper.php

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<?php
namespace TYPO3\CMS\Fluid\ViewHelpers\Format;

/*                                                                        *
 * This script is backported from the TYPO3 Flow package "TYPO3.Fluid".   *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, either version 3   *
 *  of the License, or (at your option) any later version.                *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

use TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface;
use TYPO3\CMS\Fluid\Core\ViewHelper\AbstractViewHelper;
use TYPO3\CMS\Fluid\Core\ViewHelper\Facets\CompilableInterface;

class PaddingViewHelper extends AbstractViewHelper implements CompilableInterface
{
    public function render($padLength, $padString = ' ', $padType = 'right', $value = null)
    {
        return static::renderStatic(
            array(
                'padLength' => $padLength,
                'padString' => $padString,
                'padType' => $padType,
                'value' => $value
            ),
            $this->buildRenderChildrenClosure(),
            $this->renderingContext
        );
    }

    public static function renderStatic(array $arguments, \Closure $renderChildrenClosure, RenderingContextInterface $renderingContext)
    {
        $value = $arguments['value'];
        if ($value === null) {
            $value = $renderChildrenClosure();
        }
        $padTypes = array(
            'left' => STR_PAD_LEFT,
            'right' => STR_PAD_RIGHT,
            'both' => STR_PAD_BOTH
        );
        $padType = $arguments['padType'];
        if (!isset($padTypes[$padType])) {
            $padType = 'right';
        }

        return str_pad($value, $arguments['padLength'], $arguments['padString'], $padTypes[$padType]);
    }
}