protected static function FileInspector::inspectFileContents in X Autoload 7.4

Same name and namespace in other branches

1. 7.5 src/Discovery/FileInspector.php \Drupal\xautoload\Discovery\FileInspector::inspectFileContents()

Parameters

string $contents: The PHP file contents obtained with php_strip_whitespace($path).

Return value

string[] Classes discovered in the file.

1 call to FileInspector::inspectFileContents()

FileInspector::inspectPhpFile in lib/Discovery/FileInspector.php

File

lib/Discovery/FileInspector.php, line 32

Class

FileInspector

Namespace

Drupal\xautoload\Discovery

Code

protected static function inspectFileContents($contents) {
  $traits = version_compare(PHP_VERSION, '5.4', '<') ? '' : '|trait';

  // return early if there is no chance of matching anything in this file
  if (!preg_match('{\\b(?:class|interface' . $traits . ')\\s}i', $contents)) {
    return array();
  }

  // strip heredocs/nowdocs
  $contents = preg_replace('{<<<\'?(\\w+)\'?(?:\\r\\n|\\n|\\r)(?:.*?)(?:\\r\\n|\\n|\\r)\\1(?=\\r\\n|\\n|\\r|;)}s', 'null', $contents);

  // strip strings
  $contents = preg_replace('{"[^"\\\\]*(\\\\.[^"\\\\]*)*"|\'[^\'\\\\]*(\\\\.[^\'\\\\]*)*\'}s', 'null', $contents);

  // strip leading non-php code if needed
  if (substr($contents, 0, 2) !== '<?') {
    $contents = preg_replace('{^.+?<\\?}s', '<?', $contents);
  }

  // strip non-php blocks in the file
  $contents = preg_replace('{\\?>.+<\\?}s', '?><?', $contents);

  // strip trailing non-php code if needed
  $pos = strrpos($contents, '?>');
  if (FALSE !== $pos && FALSE === strpos(substr($contents, $pos), '<?')) {
    $contents = substr($contents, 0, $pos);
  }
  preg_match_all('{
                  (?:
                       \\b(?<![\\$:>])(?P<type>class|interface' . $traits . ') \\s+ (?P<name>[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*)
               | \\b(?<![\\$:>])(?P<ns>namespace) (?P<nsname>\\s+[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*(?:\\s*\\\\\\s*[a-zA-Z_\\x7f-\\xff][a-zA-Z0-9_\\x7f-\\xff]*)*)? \\s*[\\{;]
            )
        }ix', $contents, $matches);
  $classes = array();
  $namespace = '';
  for ($i = 0, $len = count($matches['type']); $i < $len; $i++) {
    if (!empty($matches['ns'][$i])) {
      $namespace = str_replace(array(
        ' ',
        "\t",
        "\r",
        "\n",
      ), '', $matches['nsname'][$i]) . '\\';
    }
    else {
      $classes[] = ltrim($namespace . $matches['name'][$i], '\\');
    }
  }
  return $classes;
}