Parses data in Drupal's .info format.

Data should be in an .ini-like format to specify values. White-space generally doesn't matter, except inside values:

  key = value
  key = "value"
  key = 'value'
  key = "multi-line
  value"
  key = 'multi-line
  value'
  key
  =
  'value'

Arrays are created using a HTTP GET alike syntax:

  key[] = "numeric array"
  key[index] = "associative array"
  key[index][] = "nested numeric array"
  key[index][index] = "nested associative array"

PHP constants are substituted in, but only when used as the entire value. Comments should start with a semi-colon at the beginning of a line.

Parameters

$data: A string to parse.

Return value

The info array.

See also

drupal_parse_info_file()

2 calls to drupal_parse_info_format()

drupal_parse_info_file in includes/common.inc

Parses Drupal module and theme .info files.

InfoFileParserTestCase::testDrupalParseInfoFormat in modules/system/system.test

Test drupal_parse_info_format().

File

includes/common.inc, line 7715

Code

function drupal_parse_info_format($data) {
    $info = array();
    if (preg_match_all('
    @^\\s*                           # Start at the beginning of a line, ignoring leading whitespace
    ((?:
      [^=;\\[\\]]|                    # Key names cannot contain equal signs, semi-colons or square brackets,
      \\[[^\\[\\]]*\\]                  # unless they are balanced and not nested
    )+?)
    \\s*=\\s*                         # Key/value pairs are separated by equal signs (ignoring white-space)
    (?:
      ("(?:[^"]|(?<=\\\\)")*")|     # Double-quoted string, which may contain slash-escaped quotes/slashes
      (\'(?:[^\']|(?<=\\\\)\')*\')| # Single-quoted string, which may contain slash-escaped quotes/slashes
      ([^\\r\\n]*?)                   # Non-quoted string
    )\\s*$                           # Stop at the next end of a line, ignoring trailing whitespace
    @msx', $data, $matches, PREG_SET_ORDER)) {
        foreach ($matches as $match) {
            // Fetch the key and value string.
            $i = 0;
            foreach (array(
                'key',
                'value1',
                'value2',
                'value3',
            ) as $var) {
                ${$var} = isset($match[++$i]) ? $match[$i] : '';
            }
            $value = stripslashes(substr($value1, 1, -1)) . stripslashes(substr($value2, 1, -1)) . $value3;
            // Parse array syntax.
            $keys = preg_split('/\\]?\\[/', rtrim($key, ']'));
            $last = array_pop($keys);
            $parent =& $info;
            // Create nested arrays.
            foreach ($keys as $key) {
                if ($key == '') {
                    $key = count($parent);
                }
                if (!isset($parent[$key]) || !is_array($parent[$key])) {
                    $parent[$key] = array();
                }
                $parent =& $parent[$key];
            }
            // Handle PHP constants.
            if (preg_match('/^\\w+$/i', $value) && defined($value)) {
                $value = constant($value);
            }
            // Insert actual value.
            if ($last == '') {
                $last = count($parent);
            }
            $parent[$last] = $value;
        }
    }
    return $info;
}

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