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vendor/symfony/finder/Glob.php 3.19 KB
ad2e91f7   Mihail   move multyparser ...
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  <?php
  
  /*
   * This file is part of the Symfony package.
   *
   * (c) Fabien Potencier <fabien@symfony.com>
   *
   * For the full copyright and license information, please view the LICENSE
   * file that was distributed with this source code.
   */
  
  namespace Symfony\Component\Finder;
  
  /**
   * Glob matches globbing patterns against text.
   *
   *   if match_glob("foo.*", "foo.bar") echo "matched\n";
   *
   * // prints foo.bar and foo.baz
   * $regex = glob_to_regex("foo.*");
   * for (array('foo.bar', 'foo.baz', 'foo', 'bar') as $t)
   * {
   *   if (/$regex/) echo "matched: $car\n";
   * }
   *
   * Glob implements glob(3) style matching that can be used to match
   * against text, rather than fetching names from a filesystem.
   *
   * Based on the Perl Text::Glob module.
   *
   * @author Fabien Potencier <fabien@symfony.com> PHP port
   * @author     Richard Clamp <richardc@unixbeard.net> Perl version
   * @copyright  2004-2005 Fabien Potencier <fabien@symfony.com>
   * @copyright  2002 Richard Clamp <richardc@unixbeard.net>
   */
  class Glob
  {
      /**
       * Returns a regexp which is the equivalent of the glob pattern.
       *
       * @param string $glob                The glob pattern
       * @param bool   $strictLeadingDot
       * @param bool   $strictWildcardSlash
       * @param string $delimiter           Optional delimiter
       *
       * @return string regex The regexp
       */
      public static function toRegex($glob, $strictLeadingDot = true, $strictWildcardSlash = true, $delimiter = '#')
      {
          $firstByte = true;
          $escaping = false;
          $inCurlies = 0;
          $regex = '';
          $sizeGlob = strlen($glob);
          for ($i = 0; $i < $sizeGlob; ++$i) {
              $car = $glob[$i];
              if ($firstByte) {
                  if ($strictLeadingDot && '.' !== $car) {
                      $regex .= '(?=[^\.])';
                  }
  
                  $firstByte = false;
              }
  
              if ('/' === $car) {
                  $firstByte = true;
              }
  
              if ('.' === $car || '(' === $car || ')' === $car || '|' === $car || '+' === $car || '^' === $car || '$' === $car) {
                  $regex .= "\\$car";
              } elseif ('*' === $car) {
                  $regex .= $escaping ? '\\*' : ($strictWildcardSlash ? '[^/]*' : '.*');
              } elseif ('?' === $car) {
                  $regex .= $escaping ? '\\?' : ($strictWildcardSlash ? '[^/]' : '.');
              } elseif ('{' === $car) {
                  $regex .= $escaping ? '\\{' : '(';
                  if (!$escaping) {
                      ++$inCurlies;
                  }
              } elseif ('}' === $car && $inCurlies) {
                  $regex .= $escaping ? '}' : ')';
                  if (!$escaping) {
                      --$inCurlies;
                  }
              } elseif (',' === $car && $inCurlies) {
                  $regex .= $escaping ? ',' : '|';
              } elseif ('\\' === $car) {
                  if ($escaping) {
                      $regex .= '\\\\';
                      $escaping = false;
                  } else {
                      $escaping = true;
                  }
  
                  continue;
              } else {
                  $regex .= $car;
              }
              $escaping = false;
          }
  
          return $delimiter.'^'.$regex.'$'.$delimiter;
      }
  }