fragment SUB_STRING : ('"' (ESC | ~["])*'"') | ('\'' (ESC | ~['])*'\'') ;
-STRING: (SUB_STRING | (~( '\r' | '\n' | ' ' | ';' | '{' )+)) ->popMode;// IDENTIFIER ;
+STRING: (SUB_STRING | (~( '\r' | '\n' | '\t' | ' ' | ';' | '{' )+)) ->popMode;// IDENTIFIER ;
S : [ \n\r\t] -> skip;
mode BLOCK_COMMENT_MODE;