CompositeSegment ParseInsertionPoint()
{
char?formatSpecifier = null;
if (!TryParse(_compositeFormatString, _currentIndex, 5, out uint arg, out int consumed))
{
throw new Exception("invalid insertion point");
}
_currentIndex += consumed;
if (_currentIndex >= _compositeFormatString.Length)
{
throw new Exception("missing end bracket");
}
if (_compositeFormatString[_currentIndex] == ':')
{
_currentIndex++;
formatSpecifier = _compositeFormatString[_currentIndex];
_currentIndex++;
}
if (_compositeFormatString[_currentIndex] != '}')
{
throw new Exception("missing end bracket");
}
_currentIndex++;
var StandardFormat = (formatSpecifier.HasValue && formatSpecifier.Value != 0) ? new StandardFormat(formatSpecifier.Value) : default;
return(CompositeSegment.InsertionPoint(arg, StandardFormat));
}
public CompositeSegment?Next()
{
while (_currentIndex < _compositeFormatString.Length)
{
char c = _compositeFormatString[_currentIndex];
if (c == '{')
{
if (_state == State.Literal)
{
_state = State.New;
return(CompositeSegment.Literal(_spanStart, _currentIndex));
}
_currentIndex++;
return(ParseInsertionPoint());
}
else
{
if (_state != State.Literal)
{
_state = State.Literal;
_spanStart = _currentIndex;
}
}
_currentIndex++;
}
if (_state == State.Literal)
{
_state = State.New;
return(CompositeSegment.Literal(_spanStart, _currentIndex));
}
return(null);
}
CompositeSegment ParseInsertionPoint()
{
uint arg;
int consumed;
char?formatSpecifier = null;
if (!TryParse(_compositeFormatString, _currentIndex, 5, out arg, out consumed))
{
throw new Exception("invalid insertion point");
}
_currentIndex += consumed;
if (_currentIndex >= _compositeFormatString.Length)
{
throw new Exception("missing end bracket");
}
if (_compositeFormatString[_currentIndex] == ':')
{
_currentIndex++;
formatSpecifier = _compositeFormatString[_currentIndex];
_currentIndex++;
}
if (_compositeFormatString[_currentIndex] != '}')
{
throw new Exception("missing end bracket");
}
_currentIndex++;
var parsedFormat = formatSpecifier.HasValue ? System.Text.Formatting.Format.Parse(formatSpecifier.Value): default(System.Text.Formatting.Format.Parsed);
return(CompositeSegment.InsertionPoint(arg, parsedFormat));
}
public void TestComposite()
{
List <Point> pillar = new List <Point>();
Point p1 = new Point();
p1.X = 1;
p1.Y = 1;
Point p2 = new Point();
p2.X = 2;
p2.Y = 2;
pillar.Add(p1);
pillar.Add(p2);
ISegment segment = new Segment(new BezierCurve(), pillar);
pillar = new List <Point>();
p1 = new Point();
p1.X = 3;
p1.Y = 3;
p2 = new Point();
p2.X = 4;
p2.Y = 4;
pillar.Add(p1);
pillar.Add(p2);
ISegment segment2 = new Segment(new BezierCurve(), pillar);
ISegment compositeSegment = new CompositeSegment();
compositeSegment.Add(segment);
compositeSegment.Add(segment2);
Assert.AreEqual(compositeSegment.GetPillar().Count(), 4);
Assert.AreEqual(compositeSegment.GetCurvePoint(0.48), segment.GetCurvePoint(0.96));
Assert.AreEqual(compositeSegment.GetCurvePoint(0.75), segment2.GetCurvePoint(0.5));
}
public CompositeSegment?Next()
{
while (_currentIndex < _compositeFormatString.Length)
{
char c = _compositeFormatString[_currentIndex];
if (c == '{')
{
if (_state == State.Literal)
{
_state = State.New;
return(CompositeSegment.Literal(_spanStart, _currentIndex));
}
if ((_currentIndex + 1 < _compositeFormatString.Length) && (_compositeFormatString[_currentIndex + 1] == c))
{
_state = State.Literal;
_currentIndex++;
_spanStart = _currentIndex;
}
else
{
_currentIndex++;
return(ParseInsertionPoint());
}
}
else if (c == '}')
{
if ((_currentIndex + 1 < _compositeFormatString.Length) && (_compositeFormatString[_currentIndex + 1] == c))
{
if (_state == State.Literal)
{
_state = State.New;
return(CompositeSegment.Literal(_spanStart, _currentIndex));
}
_state = State.Literal;
_currentIndex++;
_spanStart = _currentIndex;
}
else
{
throw new Exception("missing start bracket");
}
}
else
{
if (_state != State.Literal)
{
_state = State.Literal;
_spanStart = _currentIndex;
}
}
_currentIndex++;
}
if (_state == State.Literal)
{
_state = State.New;
return(CompositeSegment.Literal(_spanStart, _currentIndex));
}
return(null);
}