public Brackets(ISyntaxNode parent, ref string Input)
: base(parent)
{
Pattern regExPattern =
"^\\s*" +
new Group("def", "\\(");
System.Text.RegularExpressions.Regex regEx = new System.Text.RegularExpressions.Regex(regExPattern);
System.Text.RegularExpressions.Match match = regEx.Match(Input);
if (!match.Success)
{
throw new ParseException();
}
Input = Input.Remove(0, match.Index + match.Length);
this.Operand = IRightValue.Parse(this, ref Input);
Pattern regExClosePattern = "^\\s*\\)";
regEx = new System.Text.RegularExpressions.Regex(regExClosePattern);
match = regEx.Match(Input);
if (!match.Success)
{
throw new ParseException();
}
Input = Input.Remove(0, match.Index + match.Length);
regExClosePattern = "^\\s*\\)";
}
public static IBinaryOperator Parse(ISyntaxNode parent, ref string Input, IRightValue firstOperand)
{
string temp = Input;
Pattern regExPattern =
"^\\s*" +
new Group("def", "(\\+|\\*|-|/|==|!=|>=|<=|<|>|\\||\\|\\||&|&&|\\^|%|<<|>>)");
System.Text.RegularExpressions.Regex regEx = new System.Text.RegularExpressions.Regex(regExPattern);
System.Text.RegularExpressions.Match match = regEx.Match(Input);
if (!match.Groups["def"].Success)
{
Input = temp;
return(null);
}
Input = Input.Remove(0, match.Index + match.Length);
string Operator = match.Groups["def"].Value;
IRightValue secondOperand = IRightValue.Parse(parent, ref Input);
switch (Operator)
{
case "+":
return(new AdditionOperator(parent, firstOperand, secondOperand));
case "-":
return(new SubtractionOperator(parent, firstOperand, secondOperand));
case "*":
return(new MultiplicationOperator(parent, firstOperand, secondOperand));
case "/":
return(new DivisionOperator(parent, firstOperand, secondOperand));
case "==":
return(new EqualOperator(parent, firstOperand, secondOperand));
case "!=":
return(new UnequalOperator(parent, firstOperand, secondOperand));
case ">=":
return(new GreaterEqualOperator(parent, firstOperand, secondOperand));
case "<=":
return(new LessEqualOperator(parent, firstOperand, secondOperand));
case ">":
return(new GreaterOperator(parent, firstOperand, secondOperand));
case "<":
return(new LessOperator(parent, firstOperand, secondOperand));
default:
Input = temp;
throw new NotImplementedException();
}
}