Parses a Plural-Forms entry from a Gettext Portable Object file header

Parameters

$pluralforms: A string containing the Plural-Forms entry

$filename: A string containing the filename

Return value

An array containing the number of plurals and a formula in PHP for computing the plural form

Related topics

File

drupal-6.x/includes/locale.inc, line 1435

Administration functions for locale.module.

Code

function _locale_import_parse_plural_forms($pluralforms, $filename) {
  // First, delete all whitespace
  $pluralforms = strtr($pluralforms, array(" " => "", "\t" => ""));

  // Select the parts that define nplurals and plural
  $nplurals = strstr($pluralforms, "nplurals=");
  if (strpos($nplurals, ";")) {
    $nplurals = substr($nplurals, 9, strpos($nplurals, ";") - 9);
  }
  else {
    return FALSE;
  }
  $plural = strstr($pluralforms, "plural=");
  if (strpos($plural, ";")) {
    $plural = substr($plural, 7, strpos($plural, ";") - 7);
  }
  else {
    return FALSE;
  }

  // Get PHP version of the plural formula
  $plural = _locale_import_parse_arithmetic($plural);

  if ($plural !== FALSE) {
    return array($nplurals, $plural);
  }
  else {
    drupal_set_message(t('The translation file %filename contains an error: the plural formula could not be parsed.', array('%filename' => $filename)), 'error');
    return FALSE;
  }
}