public ParaRange CreateNextInSequence()
{
ParaRange rng = new ParaRange(End);
rng.Bold = Bold;
rng.Underline = Underline;
rng.Italic = Italic;
return(rng);
}
private void Collect(string line, ParaRange rng)
{
int len = line.Length;
while (rng.End < len)
{
if (line[rng.End] == '*' || line[rng.End] == '_' || line[rng.End] == '^')
{
if (rng.Begin == rng.End)
{
++rng.End;
}
break;
}
++rng.End;
}
}
protected List <ParaRange> Parse(string line)
{
var ranges = new List <ParaRange>();
var rng = new ParaRange(0);
while (true)
{
Collect(line, rng);
if (rng.IsEmpty)
{
break;
}
else if (line[rng.Begin] == '*')
{
rng.Bold = !rng.Bold;
rng = rng.CreateNextInSequence();
}
else if (line[rng.Begin] == '^')
{
rng.Italic = !rng.Italic;
rng = rng.CreateNextInSequence();
}
else if (line[rng.Begin] == '_')
{
rng.Underline = !rng.Underline;
rng = rng.CreateNextInSequence();
}
else
{
ranges.Add(rng);
rng = rng.CreateNextInSequence();
}
}
return(ranges);
}
