@Override
public RobotProgramNode parse(Scanner scan) {
if (!Parser.gobble("takeFuel", scan)) {
Parser.fail("Should be takeFuel node.", scan);
}
if (!Parser.gobble("\\;", scan)) {
Parser.fail("Should have ; for variables.", scan);
}
return new TakeFuel();
}
@Override
public boolean parse(Scanner s) {
Parser.require(Parser.EQUALPAT, LOG + "Expecting " + Parser.EQUALPAT.toString(), s);
Parser.require(Parser.OPENPAREN, LOG + "Expecting (", s);
left = new EXP(getRoot());
if (!left.parse(s)) {
return false;
}
Parser.require(Parser.COMMAPAT, LOG + "Expecting ,", s);
right = new EXP(getRoot());
if (!right.parse(s)) {
return false;
}
Parser.require(Parser.CLOSEPAREN, LOG + "Expecting )", s);
return true;
}
@Override
public boolean parse(Scanner s) {
Parser.require(Parser.WHILEPAT, LOG + "Expecting " + Parser.WHILEPAT.toString(), s);
Parser.require(Parser.OPENPAREN, LOG + "Expecting (", s);
condition = new COND(getRoot());
if (!condition.parse(s)) {
return false;
}
Parser.require(Parser.CLOSEPAREN, LOG + "Expecting )", s);
Parser.require(Parser.OPENBRACE, LOG + "Expecting {", s);
block = new BLOCK(getRoot());
if (!block.parse(s)) {
return false;
}
Parser.require(Parser.CLOSEBRACE, LOG + "Expecting }", s);
return true;
}