OutputFormatterStyleStack.php in Zircon Profile 8

Namespace

Symfony\Component\Console\Formatter

File

vendor/symfony/console/Formatter/OutputFormatterStyleStack.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <[e-mail]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace Symfony\Component\Console\Formatter;


/**
 * @author Jean-François Simon <[e-mail]>
 */
class OutputFormatterStyleStack {

  /**
   * @var OutputFormatterStyleInterface[]
   */
  private $styles;

  /**
   * @var OutputFormatterStyleInterface
   */
  private $emptyStyle;

  /**
   * Constructor.
   *
   * @param OutputFormatterStyleInterface|null $emptyStyle
   */
  public function __construct(OutputFormatterStyleInterface $emptyStyle = null) {
    $this->emptyStyle = $emptyStyle ?: new OutputFormatterStyle();
    $this
      ->reset();
  }

  /**
   * Resets stack (ie. empty internal arrays).
   */
  public function reset() {
    $this->styles = array();
  }

  /**
   * Pushes a style in the stack.
   *
   * @param OutputFormatterStyleInterface $style
   */
  public function push(OutputFormatterStyleInterface $style) {
    $this->styles[] = $style;
  }

  /**
   * Pops a style from the stack.
   *
   * @param OutputFormatterStyleInterface|null $style
   *
   * @return OutputFormatterStyleInterface
   *
   * @throws \InvalidArgumentException When style tags incorrectly nested
   */
  public function pop(OutputFormatterStyleInterface $style = null) {
    if (empty($this->styles)) {
      return $this->emptyStyle;
    }
    if (null === $style) {
      return array_pop($this->styles);
    }
    foreach (array_reverse($this->styles, true) as $index => $stackedStyle) {
      if ($style
        ->apply('') === $stackedStyle
        ->apply('')) {
        $this->styles = array_slice($this->styles, 0, $index);
        return $stackedStyle;
      }
    }
    throw new \InvalidArgumentException('Incorrectly nested style tag found.');
  }

  /**
   * Computes current style with stacks top codes.
   *
   * @return OutputFormatterStyle
   */
  public function getCurrent() {
    if (empty($this->styles)) {
      return $this->emptyStyle;
    }
    return $this->styles[count($this->styles) - 1];
  }

  /**
   * @param OutputFormatterStyleInterface $emptyStyle
   *
   * @return OutputFormatterStyleStack
   */
  public function setEmptyStyle(OutputFormatterStyleInterface $emptyStyle) {
    $this->emptyStyle = $emptyStyle;
    return $this;
  }

  /**
   * @return OutputFormatterStyleInterface
   */
  public function getEmptyStyle() {
    return $this->emptyStyle;
  }

}

Classes

Name	Description
OutputFormatterStyleStack	@author Jean-François Simon <[e-mail]>