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) ;
}
}
public int getPosition() {
return lexer.getPosition();
}
public void reset(Reader in) {
lexer.yyreset(in);
reset();
}
private void nextToken() throws ParseException, IOException {
token = lexer.yylex();
if (token == null) {
token = new Yytoken(Yytoken.TYPE_EOF, null);
}
}
