public void ParseRepetitions(CharacterBuffer buffer)
{
int currentIndex = buffer.CurrentIndex;
buffer.SkipWhiteSpace();
if (buffer.IsAtEnd)
{
RepeatType = Repeat.Once;
buffer.MoveTo(currentIndex);
End = buffer.IndexInOriginalBuffer;
return;
}
char current = buffer.CurrentCharacter;
switch (current)
{
case '*':
{
this.RepeatType = Repeat.Any;
Element element = this;
element.Literal = string.Concat(element.Literal, buffer.CurrentCharacter);
buffer.MoveNext();
break;
}
case '+':
{
this.RepeatType = Repeat.OneOrMore;
Element element1 = this;
element1.Literal = string.Concat(element1.Literal, buffer.CurrentCharacter);
buffer.MoveNext();
break;
}
default:
{
if (current == '?')
{
this.RepeatType = Repeat.ZeroOrOne;
Element element2 = this;
element2.Literal = string.Concat(element2.Literal, buffer.CurrentCharacter);
buffer.MoveNext();
break;
}
else
{
if (current != '{')
{
this.RepeatType = Repeat.Once;
buffer.MoveTo(currentIndex);
this.End = buffer.IndexInOriginalBuffer;
return;
}
this.ParseBrackets(buffer);
break;
}
}
}
currentIndex = buffer.CurrentIndex;
buffer.SkipWhiteSpace();
if (buffer.IsAtEnd || buffer.CurrentCharacter != '?')
{
buffer.MoveTo(currentIndex);
}
else
{
this.AsFewAsPossible = true;
Element element3 = this;
element3.Literal = string.Concat(element3.Literal, buffer.CurrentCharacter);
buffer.MoveNext();
}
this.End = buffer.IndexInOriginalBuffer;
}