private MusicElement CreateMusicElement(string token)
{
NoteType noteType;
Enum.TryParse(token.Substring(0, 1).ToUpper(), out noteType);
var dots = token.Count(c => c == '.');
var number = int.Parse(Regex.Match(token, @"\d+").Value);
var durationType = (DurationType)number;
if (new Regex(@"[a-g][,'eis]*[0-9]+[.]*").IsMatch(token))
{
var builder = new NoteBuilder(noteType);
// Octave
var increaseOctaves = token.Count(c => c == '\'');
var decreaseOctaves = token.Count(c => c == ',') * -1;
builder.ChangeOctave(increaseOctaves + decreaseOctaves);
// Sharp or flat
if (token.Contains("is"))
{
builder = builder.Sharp();
}
else if (token.Contains("token"))
{
builder = builder.Flat();
}
if (token.Contains("~"))
{
builder = builder.IsTied();
}
builder.AddDots(dots).Duration(durationType);
return(builder.Build());
}
if (new Regex(@"r.*?[0-9][.]*").IsMatch(token))
{
var builder = new RestBuilder();
builder.AddDots(dots).Duration(durationType);
return(builder.Build());
}
return(null);
}