public static void main(String args[]) throws Exception { Yylex l = null; parser p; try { if (args.length == 0) l = new Yylex(System.in); else l = new Yylex(new FileReader(args[0])); } catch (FileNotFoundException e) { System.err.println("Error: File not found: " + args[0]); System.exit(1); } p = new parser(l); /* The default parser is the first-defined entry point. */ /* You may want to change this. Other options are: */ /* */ try { pl.edu.mimuw.cloudatlas.interpreter.query.Absyn.Program parse_tree = p.pProgram(); System.out.println(); System.out.println("Parse Succesful!"); System.out.println(); System.out.println("[Abstract Syntax]"); System.out.println(); System.out.println(PrettyPrinter.show(parse_tree)); System.out.println(); System.out.println("[Linearized Tree]"); System.out.println(); System.out.println(PrettyPrinter.print(parse_tree)); } catch (Throwable e) { System.err.println( "At line " + String.valueOf(l.line_num()) + ", near \"" + l.buff() + "\" :"); System.err.println(" " + e.getMessage()); System.exit(1); } }