private static LinkedList <LilypondToken> GetTokensFromLilypond(string content)
{
var tokens = new LinkedList <LilypondToken>();
foreach (string s in content.Split(' ').Where(item => item.Length > 0))
{
LilypondToken token = new LilypondToken()
{
Value = s
};
//token = CheckTokenKind(s, token);
//token = CheckTokenKindIsNote(s, token);
token.TokenKind = new LilypondTokenFactory(s).getTokenKind();
if (tokens.Last != null)
{
tokens.Last.Value.NextToken = token;
token.PreviousToken = tokens.Last.Value;
}
tokens.AddLast(token);
}
return(tokens);
}
public void Solve(LilypondContext context, LilypondToken token)
{
token = token.NextToken;
var times = token.Value.Split('/');
var timeSignature = new PSAMControlLibrary.TimeSignature(TimeSignatureType.Numbers, UInt32.Parse(times[0]), UInt32.Parse(times[1]));
context.Symbols.Add(timeSignature);
}
private LinkedList <LilypondToken> getTokensFromLilypond(string lilyPondText)
{
var tokens = new LinkedList <LilypondToken>();
foreach (string substring in lilyPondText.Split(' ').Where(item => item.Length > 0))
{
var sanitizedString = substring.Replace("\r\n", string.Empty);
LilypondToken token = new LilypondToken
{
Value = sanitizedString
};
switch (sanitizedString)
{
case "\\relative": token.TokenKind = LilypondTokenKind.Staff; break;
case "\\clef": token.TokenKind = LilypondTokenKind.Clef; break;
case "\\time": token.TokenKind = LilypondTokenKind.Time; break;
case "\\tempo": token.TokenKind = LilypondTokenKind.Tempo; break;
case "\\repeat": token.TokenKind = LilypondTokenKind.Repeat; break;
case "\\alternative": token.TokenKind = LilypondTokenKind.Alternative; break;
case "{": token.TokenKind = LilypondTokenKind.SectionStart; break;
case "}": token.TokenKind = LilypondTokenKind.SectionEnd; break;
case "|": token.TokenKind = LilypondTokenKind.Bar; break;
default: token.TokenKind = LilypondTokenKind.Unknown; break;
}
switch (token.TokenKind)
{
case LilypondTokenKind.Unknown when new Regex(@"[a-g][,'eis]*[0-9]+[~]?[.]*", RegexOptions.IgnoreCase).IsMatch(token.Value):
token.TokenKind = LilypondTokenKind.Note;
break;
case LilypondTokenKind.Unknown when new Regex(@"r.*?[0-9][.]*").IsMatch(substring):
token.TokenKind = LilypondTokenKind.Rest;
break;
}
if (tokens.Last != null)
{
tokens.Last.Value.NextToken = token;
token.PreviousToken = tokens.Last.Value;
}
tokens.AddLast(token);
}
return(tokens);
}
private static LinkedList <LilypondToken> GetTokensFromLilypond(string content)
{
var tokens = new LinkedList <LilypondToken>();
foreach (string s in content.Split(' ').Where(item => item.Length > 0))
{
LilypondToken token = new LilypondToken()
{
Value = s
};
switch (s)
{
case "\\relative": token.TokenKind = LilypondTokenKind.Staff; break;
case "\\clef": token.TokenKind = LilypondTokenKind.Clef; break;
case "\\time": token.TokenKind = LilypondTokenKind.Time; break;
case "\\tempo": token.TokenKind = LilypondTokenKind.Tempo; break;
case "\\repeat": token.TokenKind = LilypondTokenKind.Repeat; break;
case "\\alternative": token.TokenKind = LilypondTokenKind.Alternative; break;
case "{": token.TokenKind = LilypondTokenKind.SectionStart; break;
case "}": token.TokenKind = LilypondTokenKind.SectionEnd; break;
case "|": token.TokenKind = LilypondTokenKind.Bar; break;
default: token.TokenKind = LilypondTokenKind.Unknown; break;
}
if (token.TokenKind == LilypondTokenKind.Unknown && new Regex(@"[~]?[a-g][,'eis]*[0-9]+[.]*").IsMatch(s))
{
token.TokenKind = LilypondTokenKind.Note;
}
else if (token.TokenKind == LilypondTokenKind.Unknown && new Regex(@"r.*?[0-9][.]*").IsMatch(s))
{
token.TokenKind = LilypondTokenKind.Rest;
}
if (tokens.Last != null)
{
tokens.Last.Value.NextToken = token;
token.PreviousToken = tokens.Last.Value;
}
tokens.AddLast(token);
}
return(tokens);
}
public void Solve(LilypondContext context, LilypondToken token)
{
// Length
int noteLength = Int32.Parse(Regex.Match(token.Value, @"\d+").Value);
// Crosses and Moles
int alter = 0;
alter += Regex.Matches(token.Value, "is").Count;
alter -= Regex.Matches(token.Value, "es|as").Count;
// Octaves
int distanceWithPreviousNote = notesorder.IndexOf(token.Value[0]) - notesorder.IndexOf(context.PreviousNote);
if (distanceWithPreviousNote > 3) // Shorter path possible the other way around
{
distanceWithPreviousNote -= 7; // The number of notes in an octave
}
else if (distanceWithPreviousNote < -3)
{
distanceWithPreviousNote += 7; // The number of notes in an octave
}
if (distanceWithPreviousNote + notesorder.IndexOf(context.PreviousNote) >= 7)
{
context.PreviousOctave++;
}
else if (distanceWithPreviousNote + notesorder.IndexOf(context.PreviousNote) < 0)
{
context.PreviousOctave--;
}
// Force up or down.
context.PreviousOctave += token.Value.Count(c => c == '\'');
context.PreviousOctave -= token.Value.Count(c => c == ',');
context.PreviousNote = token.Value[0];
var note = new Note(token.Value[0].ToString().ToUpper(), alter, context.PreviousOctave, (MusicalSymbolDuration)noteLength, NoteStemDirection.Up, NoteTieType.None, new List <NoteBeamType>()
{
NoteBeamType.Single
});
note.NumberOfDots += token.Value.Count(c => c.Equals('.'));
context.Symbols.Add(note);
}
public IEnumerable <MusicalSymbol> Solve()
{
LilypondToken currentToken = tokens.First?.Value;
while (currentToken != null)
{
var handler = new ExpressionFactory().Get(currentToken.TokenKind.ToString());
if (handler != null)
{
handler.Solve(context, currentToken);
}
currentToken = currentToken.NextToken;
}
return(context.Symbols);
}
public LilypondToken Tokenize(string s)
{
var token = new LilypondToken()
{
Value = s
};
foreach (var handler in handlers)
{
if (handler.canHandle(s))
{
token.TokenKind = handler.handle(s);
return(token);
}
}
return(token); // never reached, but it's needed for the compiler.
}
public void Solve(LilypondContext context, LilypondToken token)
{
token = token.NextToken;
if (token == null)
{
return;
}
if (token.Value == "treble")
{
context.CurrentClef = new PSAMControlLibrary.Clef(ClefType.GClef, 2);
}
else if (token.Value == "bass")
{
context.CurrentClef = new PSAMControlLibrary.Clef(ClefType.FClef, 4);
}
//else
// throw new NotSupportedException($"Clef {token.Value} is not supported.");
context.Symbols.Add(context.CurrentClef);
}
private static LinkedList <LilypondToken> GetTokensFromLilypond(string content)
{
var tokens = new LinkedList <LilypondToken>();
var tokenizer = new Tokenizer();
content = content.Trim().ToLower().Replace("\r\n", " ").Replace("\n", " ").Replace(" ", " ");
foreach (string s in content.Split(' '))
{
LilypondToken token = tokenizer.Tokenize(s);
if (tokens.Last != null)
{
tokens.Last.Value.NextToken = token;
token.PreviousToken = tokens.Last.Value;
}
tokens.AddLast(token);
}
return(tokens);
}
private static IEnumerable <MusicalSymbol> GetStaffsFromTokens(LinkedList <LilypondToken> tokens)
{
List <MusicalSymbol> symbols = new List <MusicalSymbol>();
Clef currentClef = null;
int previousOctave = 4;
char previousNote = 'c';
bool inRepeat = false;
bool inAlternative = false;
int alternativeRepeatNumber = 0;
LilypondToken currentToken = tokens.First();
while (currentToken != null)
{
// TODO: There are a lot of switches based on LilypondTokenKind, can't those be eliminated en delegated?
// HINT: Command, Decorator, Factory etc.
// TODO: Repeats are somewhat weirdly done. Can we replace this with the COMPOSITE pattern?
switch (currentToken.TokenKind)
{
case LilypondTokenKind.Unknown:
break;
case LilypondTokenKind.Repeat:
inRepeat = true;
symbols.Add(new Barline()
{
RepeatSign = RepeatSignType.Forward
});
break;
case LilypondTokenKind.SectionEnd:
if (inRepeat && currentToken.NextToken?.TokenKind != LilypondTokenKind.Alternative)
{
inRepeat = false;
symbols.Add(new Barline()
{
RepeatSign = RepeatSignType.Backward, AlternateRepeatGroup = alternativeRepeatNumber
});
}
else if (inAlternative && alternativeRepeatNumber == 1)
{
alternativeRepeatNumber++;
symbols.Add(new Barline()
{
RepeatSign = RepeatSignType.Backward, AlternateRepeatGroup = alternativeRepeatNumber
});
}
else if (inAlternative && currentToken.NextToken.TokenKind == LilypondTokenKind.SectionEnd)
{
inAlternative = false;
alternativeRepeatNumber = 0;
}
break;
case LilypondTokenKind.SectionStart:
if (inAlternative && currentToken.PreviousToken.TokenKind != LilypondTokenKind.SectionEnd)
{
alternativeRepeatNumber++;
symbols.Add(new Barline()
{
AlternateRepeatGroup = alternativeRepeatNumber
});
}
break;
case LilypondTokenKind.Alternative:
inAlternative = true;
inRepeat = false;
currentToken = currentToken.NextToken; // Skip the first bracket open.
break;
case LilypondTokenKind.Note:
// Tied
// TODO: A tie, like a dot and cross or mole are decorations on notes. Is the DECORATOR pattern of use here?
NoteTieType tie = NoteTieType.None;
if (currentToken.Value.StartsWith("~"))
{
tie = NoteTieType.Stop;
var lastNote = symbols.Last(s => s is Note) as Note;
if (lastNote != null)
{
lastNote.TieType = NoteTieType.Start;
}
currentToken.Value = currentToken.Value.Substring(1);
}
// Length
int noteLength = Int32.Parse(Regex.Match(currentToken.Value, @"\d+").Value);
// Crosses and Moles
int alter = 0;
alter += Regex.Matches(currentToken.Value, "is").Count;
alter -= Regex.Matches(currentToken.Value, "es|as").Count;
// Octaves
int distanceWithPreviousNote = notesorder.IndexOf(currentToken.Value[0]) - notesorder.IndexOf(previousNote);
if (distanceWithPreviousNote > 3) // Shorter path possible the other way around
{
distanceWithPreviousNote -= 7; // The number of notes in an octave
}
else if (distanceWithPreviousNote < -3)
{
distanceWithPreviousNote += 7; // The number of notes in an octave
}
if (distanceWithPreviousNote + notesorder.IndexOf(previousNote) >= 7)
{
previousOctave++;
}
else if (distanceWithPreviousNote + notesorder.IndexOf(previousNote) < 0)
{
previousOctave--;
}
// Force up or down.
previousOctave += currentToken.Value.Count(c => c == '\'');
previousOctave -= currentToken.Value.Count(c => c == ',');
previousNote = currentToken.Value[0];
var note = new Note(currentToken.Value[0].ToString().ToUpper(), alter, previousOctave, (MusicalSymbolDuration)noteLength, NoteStemDirection.Up, tie, new List <NoteBeamType>()
{
NoteBeamType.Single
});
note.NumberOfDots += currentToken.Value.Count(c => c.Equals('.'));
symbols.Add(note);
break;
case LilypondTokenKind.Rest:
var restLength = Int32.Parse(currentToken.Value[1].ToString());
symbols.Add(new Rest((MusicalSymbolDuration)restLength));
break;
case LilypondTokenKind.Bar:
symbols.Add(new Barline()
{
AlternateRepeatGroup = alternativeRepeatNumber
});
break;
case LilypondTokenKind.Clef:
currentToken = currentToken.NextToken;
if (currentToken.Value == "treble")
{
currentClef = new Clef(ClefType.GClef, 2);
}
else if (currentToken.Value == "bass")
{
currentClef = new Clef(ClefType.FClef, 4);
}
else
{
throw new NotSupportedException($"Clef {currentToken.Value} is not supported.");
}
symbols.Add(currentClef);
break;
case LilypondTokenKind.Time:
currentToken = currentToken.NextToken;
var times = currentToken.Value.Split('/');
symbols.Add(new TimeSignature(TimeSignatureType.Numbers, UInt32.Parse(times[0]), UInt32.Parse(times[1])));
break;
case LilypondTokenKind.Tempo:
// Tempo not supported
break;
default:
break;
}
currentToken = currentToken.NextToken;
}
return(symbols);
}
public void Solve(LilypondContext context, LilypondToken token)
{
var restLength = Int32.Parse(token.Value[1].ToString());
context.Symbols.Add(new Rest((MusicalSymbolDuration)restLength));
}
public void Solve(LilypondContext context, LilypondToken token)
{
context.Symbols.Add(new Barline());
}
public void Solve(LilypondContext context, LilypondToken token)
{
// Tempo not supported
}
private static IEnumerable <MusicalSymbol> GetStaffsFromTokens(LinkedList <LilypondToken> tokens, out string message)
{
List <MusicalSymbol> symbols = new List <MusicalSymbol>();
message = "";
try
{
Clef currentClef = null;
int previousOctave = 4;
char previousNote = 'c';
LilypondToken currentToken = tokens.First();
while (currentToken != null)
{
switch (currentToken.TokenKind)
{
case LilypondTokenKind.Unknown:
break;
case LilypondTokenKind.Note:
// Length
int noteLength = Int32.Parse(Regex.Match(currentToken.Value, @"\d+").Value);
// Crosses and Moles
int alter = 0;
alter += Regex.Matches(currentToken.Value, "is").Count;
alter -= Regex.Matches(currentToken.Value, "es|as").Count;
// Octaves
int distanceWithPreviousNote = notesorder.IndexOf(currentToken.Value[0]) - notesorder.IndexOf(previousNote);
if (distanceWithPreviousNote > 3) // Shorter path possible the other way around
{
distanceWithPreviousNote -= 7; // The number of notes in an octave
}
else if (distanceWithPreviousNote < -3)
{
distanceWithPreviousNote += 7; // The number of notes in an octave
}
if (distanceWithPreviousNote + notesorder.IndexOf(previousNote) >= 7)
{
previousOctave++;
}
else if (distanceWithPreviousNote + notesorder.IndexOf(previousNote) < 0)
{
previousOctave--;
}
// Force up or down.
previousOctave += currentToken.Value.Count(c => c == '\'');
previousOctave -= currentToken.Value.Count(c => c == ',');
previousNote = currentToken.Value[0];
var note = new PSAMControlLibrary.Note(currentToken.Value[0].ToString().ToUpper(), alter, previousOctave, (MusicalSymbolDuration)noteLength, NoteStemDirection.Up, NoteTieType.None, new List <NoteBeamType>()
{
NoteBeamType.Single
});
note.NumberOfDots += currentToken.Value.Count(c => c.Equals('.'));
symbols.Add(note);
break;
case LilypondTokenKind.Rest:
var restLength = Int32.Parse(currentToken.Value[1].ToString());
symbols.Add(new Rest((MusicalSymbolDuration)restLength));
break;
case LilypondTokenKind.Bar:
symbols.Add(new Barline());
break;
case LilypondTokenKind.Clef:
currentToken = currentToken.NextToken;
if (currentToken.Value == "treble")
{
currentClef = new Clef(ClefType.GClef, 2);
}
else if (currentToken.Value == "bass")
{
currentClef = new Clef(ClefType.FClef, 4);
}
else
{
throw new NotSupportedException($"Clef {currentToken.Value} is not supported.");
}
symbols.Add(currentClef);
break;
case LilypondTokenKind.Time:
currentToken = currentToken.NextToken;
var times = currentToken.Value.Split('/');
symbols.Add(new TimeSignature(TimeSignatureType.Numbers, UInt32.Parse(times[0]), UInt32.Parse(times[1])));
break;
case LilypondTokenKind.Tempo:
// Tempo not supported
break;
default:
break;
}
currentToken = currentToken.NextToken;
}
}
catch (Exception ex)
{
message = ex.Message;
}
return(symbols);
}