public override void execute(Node node)
{
// match the write exp
Parser.getInstance().AdvanceInput();
GrExp exp = new GrExp();
Controller.getInstance().MatchExpression(node, Parser.getInstance().GetNextToken(), new GrExp());
}
public override Boolean execute(Node node)
{
//assign->id := exp
//Parser.getInstance().AdvanceInput();
//MessageBox.Show(Parser.getInstance().GetNextToken().tokenValue);
Token next = Parser.getInstance().GetNextToken();
Token ex = new Token();
Token ex2 = new Token();
GrExp exp = new GrExp();
ex.TokenType = Scanner.Scanner.STATES.T_IDENTIFIER.ToString();
// mlhash lazma bgnyh keda keda e7na asln law msh 7aga 3arfnha bn7otha identifier f faks
Boolean match = MatchInput(ex);
//MessageBox.Show("ASSIGN STMNT 1::\t" + match.ToString() + "\ntokenValue:: " + next.tokenValue + "\ntokenType:: "
// + next.tokenValue + "\nnode:: " + node.Text);
if (match == true)
{
// node.Text = node.Text + " {" + next.tokenValue + ".ID}";
Parser.getInstance().AdvanceInput(); //get current next token
//Parser.getInstance().AdvanceInput();
}
//MessageBox.Show("ASSIGN STMNT 2::\t" + match.ToString() + "\ntokenValue:: " + next.tokenValue + "\ntokenType:: "
// + next.tokenValue + "\nnode:: " + node.Text);
ex2.TokenType = Scanner.Scanner.STATES.T_ASSIGN.ToString();
match = MatchInput(ex2);
//MessageBox.Show("ASSIGN STMNT 3 ::\t"+match.ToString());
if (MatchInput(ex2))
{
Parser.getInstance().AdvanceInput();
/*
* if (Parser.getInstance().GetNextToken().tokenValue == next.tokenValue)
* {
* node.Text = node.Text;// + " {" + next.tokenValue + ".ID}";
* Parser.getInstance().AdvanceInput();
* Parser.getInstance().AdvanceInput();
* }
*/
node.Text = node.Text + " {" + next.tokenValue + ".ID}";
return(Controller.getInstance().MatchExpression(node, Parser.getInstance().GetNextToken(), exp));
}
else
{
MessageBox.Show("expected ':=' but found " + Parser.getInstance().GetNextToken().tokenValue, "Invalid Assignment Statment!");
return(false);
}
//return true;
//MessageBox.Show(Parser.getInstance().GetNextToken().TokenType);
//node.Text = node.Text + " {" + next.tokenValue + ".ID}";
//Controller.getInstance().MatchExpression(node, Parser.getInstance().GetNextToken(), exp);
}
public override Boolean execute(Node node)
{
// match the write exp
Parser.getInstance().AdvanceInput();
GrExp exp = new GrExp();
Boolean flag = Controller.getInstance().MatchExpression(node, Parser.getInstance().GetNextToken(), new GrExp());
if (!flag)
{
MessageBox.Show("Error in parsing error after write!");
}
return(flag);
}
public override void execute(Node node)
{
//assign->id := exp
//Parser.getInstance().AdvanceInput();
//MessageBox.Show(Parser.getInstance().GetNextToken().tokenValue);
Token next = Parser.getInstance().GetNextToken();
Token ex = new Token();
Token nxt = new Token();
GrExp exp = new GrExp();
ex.TokenType = Scanner.Scanner.STATES.T_IDENTIFIER.ToString();
Boolean match = MatchInput(ex);
// MessageBox.Show(match.ToString());
if (match == true)
{
// node.Text = node.Text + " {" + next.tokenValue + ".ID}";
Parser.getInstance().AdvanceInput();//get current next token
}
ex.TokenType = Scanner.Scanner.STATES.T_ASSIGN.ToString();
match = MatchInput(ex);
// MessageBox.Show(match.ToString());
if (match == true)
{
Parser.getInstance().AdvanceInput();
if (Parser.getInstance().GetNextToken().tokenValue == next.tokenValue)
{
node.Text = node.Text;// + " {" + next.tokenValue + ".ID}";
Parser.getInstance().AdvanceInput();
Parser.getInstance().AdvanceInput();
}
}
//MessageBox.Show(Parser.getInstance().GetNextToken().TokenType);
node.Text = node.Text + " {" + next.tokenValue + ".ID}";
Controller.getInstance().MatchExpression(node, Parser.getInstance().GetNextToken(), exp);
}