/**
* Build a set of regular expressions from the given multiline input text,
* with empty lines and comments stripped.
*
* @param $source string
* @param $fileName bool|string optional, for reporting of bad files
* @return array of regular expressions, potentially empty
*/
static function regexesFromText( $source, $fileName=false ) {
$lines = explode( "\n", $source );
return SpamRegexBatch::buildSafeRegexes( $lines, $fileName );
}
