/// <summary>
/// Try to make a callback in a transactional way.
/// </summary>
/// <param name="delegate">The callback to perform the match.</param>
/// <param name="p1">The parameter to pass to the matching function.</param>
/// <returns>true if the match could be made, false if not.</returns>
protected bool TryMake <TIn>(TryMakeDelegate1 <TIn> @delegate, TIn p1)
{
var index = Enumerator.Index;
if (@delegate(p1) == false)
{
Enumerator.Index = index;
return(false);
}
return(true);
}
/// <summary>
/// Attempt to make a top level match that includes the end of stream.
/// </summary>
/// <param name="tryMakeFunction">The function to perform the match.</param>
/// <param name="builder">The builder to accept the changes on.</param>
/// <returns>true if the function was matched successfully, false if not.</returns>
bool TryMakeWithEnd(TryMakeDelegate1 <ParseContext> tryMakeFunction, IDateTimeBuilder builder)
{
var context = new ParseContext(builder);
var index = Enumerator.Index;
Enumerator.TakeWhile(TokenKind.Space);
if (tryMakeFunction(context) && TryMakeEnd())
{
builder.Year = context.Year;
builder.Month = context.Month;
builder.Day = context.Day;
builder.Hour = context.Hour;
builder.Minute = context.Minute;
builder.Second = context.Second;
return(true);
}
Enumerator.Index = index;
return(false);
}
