/**
* Returns an identifier or a keyword
* @param string $ch the starting char
* @return string
*/
protected function identifier($ch)
{
$idkw = parent::identifier($ch);
return $idkw == EPL_T_IDENTIFIER ? EPQ_T_IDENTIFIER : $idkw;
}
/**
* Constructor
* @param string $s
*/
public function __construct($s = '')
{
// add data types into keywords
foreach (epFieldMap::getSupportedTypes() as $dt) {
if ($dt != epFieldMap::DT_HAS && $dt != epFieldMap::DT_COMPOSED_OF) {
self::$tag_keywords[$dt] = EPL_T_DATA_TYPE;
}
}
// set keywords to lexer
parent::__construct($s, self::$tag_keywords);
}