Source : Free On-Line Dictionary of Computing

Attribute Translation System
     
         (ATS) A {BNF}-based {parser generator} from
        the {University of Saskatchewan}(?).  ATS generates
        table-driven {LL1} {parsers} with full {insert-only error
        recovery}.  It also has full left-attribute semantic handling,
        which is a dream compared to using {YACC}'s parser actions.
     
        (2000-04-08)