function _locale_parse_js_file

Parses a JavaScript file, extracts strings wrapped in Drupal.t() and Drupal.formatPlural() and inserts them into the database.

File

includes/locale.inc, line 1519

Code

function _locale_parse_js_file($filepath) {
    global $language;
    // The file path might contain a query string, so make sure we only use the
    // actual file.
    $parsed_url = drupal_parse_url($filepath);
    $filepath = $parsed_url['path'];
    // Load the JavaScript file.
    $file = file_get_contents($filepath);
    // Match all calls to Drupal.t() in an array.
    // Note: \s also matches newlines with the 's' modifier.
    preg_match_all('~
    [^\\w]Drupal\\s*\\.\\s*t\\s*                       # match "Drupal.t" with whitespace
    \\(\\s*                                         # match "(" argument list start
    (' . LOCALE_JS_STRING . ')\\s*                 # capture string argument
    (?:,\\s*' . LOCALE_JS_OBJECT . '\\s*            # optionally capture str args
      (?:,\\s*' . LOCALE_JS_OBJECT_CONTEXT . '\\s*) # optionally capture context
    ?)?                                           # close optional args
    [,\\)]                                         # match ")" or "," to finish
    ~sx', $file, $t_matches);
    // Match all Drupal.formatPlural() calls in another array.
    preg_match_all('~
    [^\\w]Drupal\\s*\\.\\s*formatPlural\\s*  # match "Drupal.formatPlural" with whitespace
    \\(                                  # match "(" argument list start
    \\s*.+?\\s*,\\s*                       # match count argument
    (' . LOCALE_JS_STRING . ')\\s*,\\s*   # match singular string argument
    (                             # capture plural string argument
      (?:                         # non-capturing group to repeat string pieces
        (?:
          \'                      # match start of single-quoted string
          (?:\\\\\'|[^\'])*       # match any character except unescaped single-quote
          @count                  # match "@count"
          (?:\\\\\'|[^\'])*       # match any character except unescaped single-quote
          \'                      # match end of single-quoted string
          |
          "                       # match start of double-quoted string
          (?:\\\\"|[^"])*         # match any character except unescaped double-quote
          @count                  # match "@count"
          (?:\\\\"|[^"])*         # match any character except unescaped double-quote
          "                       # match end of double-quoted string
        )
        (?:\\s*\\+\\s*)?             # match "+" with possible whitespace, for str concat
      )+                          # match multiple because we supports concatenating strs
    )\\s*                          # end capturing of plural string argument
    (?:,\\s*' . LOCALE_JS_OBJECT . '\\s*          # optionally capture string args
      (?:,\\s*' . LOCALE_JS_OBJECT_CONTEXT . '\\s*)?  # optionally capture context
    )?
    [,\\)]
    ~sx', $file, $plural_matches);
    $matches = array();
    // Add strings from Drupal.t().
    foreach ($t_matches[1] as $key => $string) {
        $matches[] = array(
            'string' => $string,
            'context' => $t_matches[2][$key],
        );
    }
    // Add string from Drupal.formatPlural().
    foreach ($plural_matches[1] as $key => $string) {
        $matches[] = array(
            'string' => $string,
            'context' => $plural_matches[3][$key],
        );
        // If there is also a plural version of this string, add it to the strings array.
        if (isset($plural_matches[2][$key])) {
            $matches[] = array(
                'string' => $plural_matches[2][$key],
                'context' => $plural_matches[3][$key],
            );
        }
    }
    foreach ($matches as $key => $match) {
        // Remove the quotes and string concatenations from the string.
        $string = implode('', preg_split('~(?<!\\\\)[\'"]\\s*\\+\\s*[\'"]~s', substr($match['string'], 1, -1)));
        $context = implode('', preg_split('~(?<!\\\\)[\'"]\\s*\\+\\s*[\'"]~s', substr($match['context'], 1, -1)));
        $source = db_query("SELECT lid, location FROM {locales_source} WHERE source = :source AND context = :context AND textgroup = 'default'", array(
            ':source' => $string,
            ':context' => $context,
        ))->fetchObject();
        if ($source) {
            // We already have this source string and now have to add the location
            // to the location column, if this file is not yet present in there.
            $locations = preg_split('~\\s*;\\s*~', (string) $source->location);
            if (!in_array($filepath, $locations)) {
                $locations[] = $filepath;
                $locations = implode('; ', $locations);
                // Save the new locations string to the database.
                db_update('locales_source')->fields(array(
                    'location' => $locations,
                ))
                    ->condition('lid', $source->lid)
                    ->execute();
            }
        }
        else {
            // We don't have the source string yet, thus we insert it into the database.
            db_insert('locales_source')->fields(array(
                'location' => $filepath,
                'source' => $string,
                'context' => $context,
                'textgroup' => 'default',
            ))
                ->execute();
        }
    }
}