protected override string InternalToString(Tune t)
{
var sb = new StringBuilder();
foreach (var tuneElement in t.TuneElementList)
{
sb.Append(DurationConverter.ToString(tuneElement.Duration));
var note = tuneElement as Note;
if (note != null)
{
sb.Append(PitchConverter.ToString(note.Pitch));
sb.Append((ScaleConverter.GetValue(note.Scale) - OffsetScale).ToString(CultureInfo.InvariantCulture));
}
else if (tuneElement is Pause)
{
sb.Append(Pause);
}
if (tuneElement.Dotted)
{
sb.Append(Dot);
}
sb.Append(TuneElementDelimiter);
}
return(sb.ToString());
}
protected override string InternalToString(Tune t)
{
var sb = new StringBuilder();
sb.Append(t.Name);
sb.Append(TuneCommandDelimiter);
var defaultDuration = t.TuneElementList.GroupBy(g => g.Duration)
.OrderByDescending(o => o.Count())
.First().Key;
var defaultScale = t.TuneElementList.OfType <Note>()
.GroupBy(g => g.Scale)
.OrderByDescending(o => o.Count())
.First().Key;
sb.AppendFormat("d={0},o={1},b={2}",
DurationConverter.ToString(defaultDuration),
ScaleConverter.ToString(defaultScale),
t.Tempo.HasValue ? t.Tempo.Value.ToString(CultureInfo.InvariantCulture) : DefaultBpm.ToString());
sb.Append(TuneCommandDelimiter);
foreach (var tuneElement in t.TuneElementList)
{
if (tuneElement.Duration != defaultDuration)
{
sb.Append(DurationConverter.ToString(tuneElement.Duration));
}
var note = tuneElement as Note;
if (note != null)
{
sb.Append(PitchConverter.ToString(note.Pitch));
if (note.Scale != defaultScale)
{
sb.Append(ScaleConverter.ToString(note.Scale));
}
}
else if (tuneElement is Pause)
{
sb.Append(Pause);
}
if (tuneElement.Dotted)
{
sb.Append(Dot);
}
sb.Append(TuneElementDelimiter);
}
return(sb.ToString());
}
protected override Tune InternalParse(string s)
{
var tuneElements = new List <TuneElement>();
var regex = new Regex(TuneElementPattern, RegexOptions.IgnoreCase);
foreach (Match match in regex.Matches(s))
{
var duration = DurationConverter.Parse(match.Groups[1].Value);
TuneElement tuneElement = null;
if (match.Groups[2].Value == Pause)
{
tuneElement = new Pause(duration);
}
else
{
var pitch = PitchConverter.Parse(match.Groups[2].Value);
var scale = Scales.Four;
var scaleString = match.Groups[4].Value;
if (!string.IsNullOrWhiteSpace(scaleString))
{
int scaleInt;
if (int.TryParse(scaleString, out scaleInt))
{
scale = ScaleConverter.Parse((scaleInt + OffsetScale).ToString(CultureInfo.InvariantCulture));
}
}
tuneElement = new Note(pitch, scale, duration);
}
tuneElement.Dotted = match.Groups[3].Value == Dot;
tuneElements.Add(tuneElement);
}
return(new Tune(tuneElements));
}
protected TuneConverter()
{
DurationConverter = new DurationConverter();
ScaleConverter = new ScaleConverter();
PitchConverter = new PitchConverter();
}
protected override Tune InternalParse(string s)
{
var parts = s.Split(TuneCommandDelimiter);
if (parts.Count() < 2 || parts.Count() > 3)
{
throw new FormatException();
}
var name = parts[0];
string notes;
var bpm = DefaultBpm.ToString();
var defaultDuration = DefaultDuration;
var defaultScale = DefaultScale;
if (parts.Count() == 3)
{
notes = parts[2].ToUpperInvariant();
var commandSection = parts[1];
var bpmString = GetFirstValueGroup(commandSection, PatternDefaultBpm);
if (!string.IsNullOrEmpty(bpmString))
{
bpm = bpmString;
}
var durationString = GetFirstValueGroup(commandSection, PatternDefaultDuration);
if (!string.IsNullOrEmpty(durationString))
{
defaultDuration = durationString;
}
var scaleString = GetFirstValueGroup(commandSection, PatternDefaultScale);
if (!string.IsNullOrEmpty(scaleString))
{
defaultScale = scaleString;
}
}
else
{
notes = parts[1].ToUpperInvariant();
}
var tuneElementList = new List <TuneElement>();
var regexNotes = new Regex(TuneElementPattern);
var matches = regexNotes.Matches(notes);
foreach (Match m in matches)
{
var durationString = string.IsNullOrEmpty(m.Groups[1].Value) ? defaultDuration : m.Groups[1].Value;
var pitchString = m.Groups[2].Value;
var dotted = m.Groups[3].Value == ".";
var scaleString = string.IsNullOrEmpty(m.Groups[4].Value) ? defaultScale : m.Groups[4].Value;
var duration = DurationConverter.Parse(durationString);
var scale = ScaleConverter.Parse(scaleString);
TuneElement tuneElement;
if (pitchString == Pause)
{
tuneElement = new Pause(duration);
}
else
{
var pitch = PitchConverter.Parse(pitchString);
tuneElement = new Note(pitch, scale, duration);
}
tuneElement.Dotted = dotted;
tuneElementList.Add(tuneElement);
}
var tune = new Tune(tuneElementList, Convert.ToInt32(bpm));
tune.Name = name;
return(tune);
}
