public void CharAtCorrectlyReturnsLocation()
{
LineTrackingStringBuffer buffer = new LineTrackingStringBuffer();
buffer.Append("foo\rbar\nbaz\r\nbiz");
LineTrackingStringBuffer.CharacterReference chr = buffer.CharAt(14);
Assert.Equal('i', chr.Character);
Assert.Equal(new SourceLocation(14, 3, 1), chr.Location);
}
private void UpdateState()
{
if (_position < _buffer.Length)
{
LineTrackingStringBuffer.CharacterReference chr = _buffer.CharAt(_position);
_current = chr.Character;
_location = chr.Location;
}
else if (_buffer.Length == 0)
{
_current = null;
_location = SourceLocation.Zero;
}
else
{
_current = null;
_location = _buffer.EndLocation;
}
}
