Subversion-Projekte lars-tiefland.php_share

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Revision Autor Zeilennr. Zeile
1 lars 1 
<?php
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/*
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 * This file is part of the symfony package.
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 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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/**
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 * @package    symfony
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 * @subpackage i18n
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 * @author     Fabien Potencier <fabien.potencier@symfony-project.com>
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 * @version    SVN: $Id: sfI18nPhpExtractor.class.php 28843 2010-03-29 08:25:39Z fabien $
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 */
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class sfI18nPhpExtractor implements sfI18nExtractorInterface
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{
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  /**
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   * Extract i18n strings for the given content.
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   *
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   * @param  string $content The content
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   *
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   * @return array An array of i18n strings
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   */
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  public function extract($content)
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  {
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    $tokens = token_get_all($content);
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    $strings = array();
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    $i18n_function = 0;
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    $line = 0;
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    $heredoc = false;
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    $buffer = '';
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    foreach ($tokens as $token)
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    {
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      if (is_string($token))
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      {
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        switch ($token)
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        {
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          case '(':
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            if (1 == $i18n_function)
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            {
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              $i18n_function = 2;
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            }
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            break;
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          default:
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            $i18n_function = 0;
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        }
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      }
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      else
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      {
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        list($id, $text) = $token;
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        switch ($id)
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        {
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          case T_STRING:
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            if ($heredoc && 2 == $i18n_function)
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            {
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              $buffer .= $text;
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            }
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            else
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            {
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              $i18n_function = ('__' == $text || 'format_number_choice' == $text) ? 1 : 0;
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            }
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            break;
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          case T_WHITESPACE:
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            break;
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          case T_START_HEREDOC:
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            $heredoc = true;
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            break;
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          case T_END_HEREDOC:
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            $heredoc = false;
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            if ($buffer)
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            {
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              $strings[] = $buffer;
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              $buffer = '';
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            }
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            $i18n_function = 0;
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            break;
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          case T_CONSTANT_ENCAPSED_STRING:
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            if (2 == $i18n_function)
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            {
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              $delimiter = $text[0];
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              $strings[] = str_replace('\\'.$delimiter, $delimiter, substr($text, 1, -1));
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            }
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            $i18n_function = 0;
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            break;
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          default:
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            if ($heredoc && 2 == $i18n_function)
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            {
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              $buffer .= $text;
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            }
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            else
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            {
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              $i18n_function = 0;
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            }
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        }
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      }
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    }
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    return $strings;
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  }
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}