Esempio n. 1
0
 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);
   }
 }
 public static void main(String argv[]) throws java.io.IOException {
   int numparams = argv.length; // número argumentos pasados
   if (numparams != 1) { // error: nr. Parámetros incorrecto
     System.out.println("Número parámetros incorrecto!. Uso: ");
     System.out.println("\tjava yylex archivo.EXT");
     return;
   } else {
     fInName = argv[0];
     Yylex yy = new Yylex(new FileInputStream(fInName));
     while (yy.yylex() != -1) ;
   }
 }
Esempio n. 3
0
 public int getPosition() {
   return lexer.getPosition();
 }
Esempio n. 4
0
 public void reset(Reader in) {
   lexer.yyreset(in);
   reset();
 }
Esempio n. 5
0
 private void nextToken() throws ParseException, IOException {
   token = lexer.yylex();
   if (token == null) {
     token = new Yytoken(Yytoken.TYPE_EOF, null);
   }
 }