protected function parse($filename)
{
$version = phpversion();
// Capture hidden PHP errors from the parsing.
$php_errormsg = null;
$track_errors = ini_get('track_errors');
ini_set('track_errors', true);
if ($version >= '5.3.1') {
$contents = file_get_contents($filename);
$contents = str_replace('_QQ_', '"\\""', $contents);
$strings = @parse_ini_string($contents);
} else {
$strings = @parse_ini_file($filename);
if ($version == '5.3.0' && is_array($strings)) {
foreach ($strings as $key => $string) {
$strings[$key] = str_replace('_QQ_', '"', $string);
}
}
}
// Restore error tracking to what it was before.
ini_set('track_errors', $track_errors);
if (!is_array($strings)) {
$strings = array();
}
if ($this->debug) {
// Initialise variables for manually parsing the file for common errors.
$blacklist = array('YES', 'NO', 'NULL', 'FALSE', 'ON', 'OFF', 'NONE', 'TRUE');
$regex = '/^(|(\\[[^\\]]*\\])|([A-Z][A-Z0-9_\\-]*\\s*=(\\s*(("[^"]*")|(_QQ_)))+))\\s*(;.*)?$/';
$this->debug = false;
$errors = array();
$lineNumber = 0;
// Open the file as a stream.
$stream = new MStream();
$stream->open($filename);
while (!$stream->eof()) {
$line = $stream->gets();
// Avoid BOM error as BOM is OK when using parse_ini
if ($lineNumber == 0) {
$line = str_replace("", '', $line);
}
$lineNumber++;
// Check that the key is not in the blacklist and that the line format passes the regex.
$key = strtoupper(trim(substr($line, 0, strpos($line, '='))));
if (!preg_match($regex, $line) || in_array($key, $blacklist)) {
$errors[] = $lineNumber;
}
}
$stream->close();
// Check if we encountered any errors.
if (count($errors)) {
if (basename($filename) != $this->lang . '.ini') {
$this->errorfiles[$filename] = $filename . MText::sprintf('MERROR_PARSING_LANGUAGE_FILE', implode(', ', $errors));
} else {
$this->errorfiles[$filename] = $filename . ' : error(s) in line(s) ' . implode(', ', $errors);
}
} elseif ($php_errormsg) {
// We didn't find any errors but there's probably a parse notice.
$this->errorfiles['PHP' . $filename] = 'PHP parser errors :' . $php_errormsg;
}
$this->debug = true;
}
return $strings;
}