// returns true if the start date is before or equal to the end date
private bool IsStartBeforeEnd(DateValueNode start, DateValueNode end)
{
if (start.Year < end.Year)
{
return(true);
}
if (start.Year > end.Year)
{
return(false);
}
// must be the same start and end year if we get here
if (start.Month < end.Month)
{
return(true);
}
if (start.Month > end.Month)
{
return(false);
}
// must be the same month
return(start.Day <= end.Day);
}
private DateValueNode ParseDate()
{
var date = new DateValueNode();
var tok = Expect(TokenType.PositiveInteger);
date.AddToken(tok);
var one = int.Parse(tok.Value);
date.AddToken(Expect(TokenType.ForwardSlash));
tok = Expect(TokenType.PositiveInteger);
date.AddToken(tok);
var two = int.Parse(tok.Value);
int three = -1;
if (IsNext(TokenType.ForwardSlash))
{
date.AddToken(Expect(TokenType.ForwardSlash));
tok = Expect(TokenType.PositiveInteger);
date.AddToken(tok);
three = int.Parse(tok.Value);
}
if (three != -1)
{
// date has a year
date.Year = one;
date.Month = two;
date.Day = three;
}
else
{
// no year
date.Month = one;
date.Day = two;
}
return(date);
}
private DateValueNode ParseDate()
{
var date = new DateValueNode();
var tok = Expect(TokenType.PositiveInteger);
date.AddToken(tok);
var one = int.Parse(tok.Value);
date.AddToken(Expect(TokenType.ForwardSlash));
tok = Expect(TokenType.PositiveInteger);
date.AddToken(tok);
var two = int.Parse(tok.Value);
int three = -1;
if (IsNext(TokenType.ForwardSlash))
{
date.AddToken(Expect(TokenType.ForwardSlash));
tok = Expect(TokenType.PositiveInteger);
date.AddToken(tok);
three = int.Parse(tok.Value);
}
if (three != -1)
{
// date has a year
date.Year = one;
date.Month = two;
date.Day = three;
}
else
{
// no year
date.Month = one;
date.Day = two;
}
return date;
}
// returns true if the start date is before or equal to the end date
private bool IsStartBeforeEnd(DateValueNode start, DateValueNode end)
{
if (start.Year < end.Year)
return true;
if (start.Year > end.Year)
return false;
// must be the same start and end year if we get here
if (start.Month < end.Month)
return true;
if (start.Month > end.Month)
return false;
// must be the same month
return start.Day <= end.Day;
}