aboutsummaryrefslogtreecommitdiffstats
path: root/src/base/UXMLSong.pas
blob: 1a1fe6bc1a6b6392d82f03337e8ff1a017fab94b (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
unit UXMLSong;

interface
uses Classes;

type
  TNote = record
    Start:    Cardinal;
    Duration: Cardinal;
    Tone:     Integer;
    NoteTyp:  Byte;
    Lyric:    String;
  end;
  ANote = Array of TNote;

  TSentence = record
    Singer:   Byte;
    Duration: Cardinal;
    Notes:    ANote;
  end;
  ASentence = Array of TSentence;

  TSongInfo = Record
    ID: Cardinal;
    DualChannel: Boolean;
    Header: Record
      Artist:     String;
      Title:      String;
      Gap:        Cardinal;
      BPM:        Real;
      Resolution: Byte;
      Edition:    String;
      Genre:      String;
      Year:       String;
      Language:   String;
    end;
    CountSentences: Cardinal;
    Sentences: ASentence;
  end;
  
  TParser = class
    private
      SSFile: TStringList;

      ParserState: Byte;
      CurPosinSong: Cardinal; //Cur Beat Pos in the Song
      CurDuettSinger: Byte;   //Who sings this Part?
      BindLyrics: Boolean;    //Should the Lyrics be bind to the last Word (no Space)
      FirstNote: Boolean;     //Is this the First Note found? For Gap calculating

      Function  ParseLine(Line: String): Boolean;
    public
      SongInfo: TSongInfo;
      ErrorMessage: String;
      Edition: String;
      SingstarVersion: String;

      Settings: Record
        DashReplacement: Char;
      end;

      Constructor Create;

      Function  ParseConfigforEdition(const Filename: String): String;

      Function  ParseSongHeader(const Filename: String): Boolean; //Parse Song Header only
      Function  ParseSong (const Filename: String): Boolean;      //Parse whole Song
  end;

const
  PS_None = 0;
  PS_Melody = 1;
  PS_Sentence = 2;

  NT_Normal = 1;
  NT_Freestyle = 0;
  NT_Golden = 2;

  DS_Player1 = 1;
  DS_Player2 = 2;
  DS_Both    = 3;

implementation
uses SysUtils, StrUtils;

Constructor TParser.Create;
begin
  inherited Create;
  ErrorMessage := '';

  DecimalSeparator := '.';
end;

Function  TParser.ParseSong (const Filename: String): Boolean;
var I: Integer;
begin
  Result := False;
  if FileExists(Filename) then
  begin
    SSFile := TStringList.Create;

    try
      ErrorMessage := 'Can''t open melody.xml file';
      SSFile.LoadFromFile(Filename);
      ErrorMessage := '';
      Result := True;
      I := 0;

      SongInfo.CountSentences := 0;
      CurDuettSinger := DS_Both; //Both is Singstar Standard
      CurPosinSong   := 0; //Start at Pos 0
      BindLyrics     := True; //Dont start with Space
      FirstNote      := True; //First Note found should be the First Note ;)

      SongInfo.Header.Language := '';
      SongInfo.Header.Edition := Edition;
      SongInfo.DualChannel := False;

      ParserState    := PS_None;

      SetLength(SongInfo.Sentences, 0);

      While Result And (I < SSFile.Count) do
      begin
        Result := ParseLine(SSFile.Strings[I]);

        Inc(I);
      end;

    finally
      SSFile.Free;
    end;
  end;
end;

Function  TParser.ParseSongHeader (const Filename: String): Boolean;
var I: Integer;
begin
  Result := False;
  if FileExists(Filename) then
  begin
    SSFile := TStringList.Create;
    SSFile.Clear;
    
    try
      SSFile.LoadFromFile(Filename);

      If (SSFile.Count > 0) then
      begin
        Result := True;
        I := 0;

        SongInfo.CountSentences := 0;
        CurDuettSinger := DS_Both; //Both is Singstar Standard
        CurPosinSong   := 0; //Start at Pos 0
        BindLyrics     := True; //Dont start with Space
        FirstNote      := True; //First Note found should be the First Note ;)

        SongInfo.ID := 0;
        SongInfo.Header.Language := '';
        SongInfo.Header.Edition := Edition;
        SongInfo.DualChannel := False;
        ParserState    := PS_None;

        While (SongInfo.ID < 4) AND Result And (I < SSFile.Count) do
        begin
          Result := ParseLine(SSFile.Strings[I]);

          Inc(I);
        end;
      end
      else
        ErrorMessage := 'Can''t open melody.xml file';

    finally
      SSFile.Free;
    end;
  end
  else
    ErrorMessage := 'Can''t find melody.xml file';
end;

Function TParser.ParseLine(Line: String): Boolean;
var
  Tag:    String;
  Values: String;
  AValues: Array of Record
    Name: String;
    Value: String;
  end;
  I, J, K:   Integer;
  Duration, Tone: Integer;
  Lyric: String;
  NoteType: Byte;

  Procedure MakeValuesArray;
  var Len, Pos, State, StateChange: Integer;
  begin
    Len := -1;
    SetLength(AValues, Len + 1);

    Pos := 1;
    State := 0;
    While (Pos <= Length(Values)) AND (Pos <> 0) do
    begin
      Case State of

        0: begin //Search for ValueName
          If (Values[Pos] <> ' ') AND (Values[Pos] <> '=') then
          begin
            //Found Something
            State := 1; //State search for '='
            StateChange := Pos; //Save Pos of Change
            Pos := PosEx('=', Values, Pos + 1);
          end
          else Inc(Pos); //When nothing found then go to next char
        end;

        1: begin //Search for Equal Mark
          //Add New Value
          Inc(Len);
          SetLength(AValues, Len + 1);

          AValues[Len].Name := UpperCase(Copy(Values, StateChange, Pos - StateChange));


          State := 2; //Now Search for starting '"'
          StateChange := Pos; //Save Pos of Change
          Pos := PosEx('"', Values, Pos + 1);
        end;

        2: begin //Search for starting '"' or ' ' <- End if there was no "
          If (Values[Pos] = '"') then
          begin //Found starting '"'
            State := 3; //Now Search for ending '"'
            StateChange := Pos; //Save Pos of Change
            Pos := PosEx('"', Values, Pos + 1);
          end
          else If (Values[Pos] = ' ') then //Found ending Space
          begin
            //Save Value to Array
            AValues[Len].Value := Copy(Values, StateChange + 1, Pos - StateChange - 1);

            //Search for next Valuename
            State := 0;
            StateChange := Pos;
            Inc(Pos);
          end;
        end;

        3: begin //Search for ending '"'
          //Save Value to Array
          AValues[Len].Value := Copy(Values, StateChange + 1, Pos - StateChange - 1);

          //Search for next Valuename
          State := 0;
          StateChange := Pos;
          Inc(Pos);
        end;
      end;

      If (State >= 2) then
      begin //Save Last Value
        AValues[Len].Value := Copy(Values, StateChange + 1, Length(Values) - StateChange);
      end;
    end;
  end;
begin
  Result := True;

  Line := Trim(Line);
  If (Length(Line) > 0) then
  begin
    I := Pos('<', Line);
    J := PosEx(' ', Line, I+1);
    K := PosEx('>', Line, I+1);

    If (J = 0) then J := K
    Else If (K < J) AND (K <> 0) then J := K; //Use nearest Tagname End indicator
    Tag := UpperCase(copy(Line, I + 1, J - I - 1));
    Values := copy(Line, J + 1, K - J - 1);

    Case ParserState of
      PS_None: begin//Search for Melody Tag
        If (Tag = 'MELODY') then
        begin
          Inc(SongInfo.ID); //Inc SongID when header Information is added
          MakeValuesArray;
          For I := 0 to High(AValues) do
          begin
            If (AValues[I].Name = 'TEMPO') then
            begin
              SongInfo.Header.BPM := StrtoFloatDef(AValues[I].Value, 0);
              If (SongInfo.Header.BPM <= 0) then
              begin
                Result := False;
                ErrorMessage := 'Can''t read BPM from Song';
              end;
            end

            Else If (AValues[I].Name = 'RESOLUTION') then
            begin
              AValues[I].Value := Uppercase(AValues[I].Value);
              //Ultrastar Resolution is "how often a Beat is split / 4"
              If (AValues[I].Value = 'HEMIDEMISEMIQUAVER') then
                SongInfo.Header.Resolution := 64 div 4
              Else If (AValues[I].Value = 'DEMISEMIQUAVER') then
                SongInfo.Header.Resolution := 32 div 4
              Else If (AValues[I].Value = 'SEMIQUAVER') then
                SongInfo.Header.Resolution := 16 div 4
              Else If (AValues[I].Value = 'QUAVER') then
                SongInfo.Header.Resolution := 8 div 4
              Else If (AValues[I].Value = 'CROTCHET') then
                SongInfo.Header.Resolution := 4 div 4
              Else
              begin //Can't understand teh Resolution :/
                Result := False;
                ErrorMessage := 'Can''t read Resolution from Song';
              end;
            end

            Else If (AValues[I].Name = 'GENRE') then
            begin
              SongInfo.Header.Genre := AValues[I].Value;
            end

            Else If (AValues[I].Name = 'YEAR') then
            begin
              SongInfo.Header.Year := AValues[I].Value;
            end

            Else If (AValues[I].Name = 'VERSION') then
            begin
              SingstarVersion := AValues[I].Value;
            end;
          end;

          ParserState := PS_Melody; //In Melody Tag
        end;
      end;


      PS_Melody: begin //Search for Sentence, Artist/Title Info or eo Melody
        If (Tag = 'SENTENCE') then
        begin
          ParserState := PS_Sentence; //Parse in a Sentence Tag now
          
          //Increase SentenceCount
          Inc(SongInfo.CountSentences);

          BindLyrics := True; //Don't let Txts Begin w/ Space
          
          //Search for Duett Singer Info
          MakeValuesArray;
          For I := 0 to High(AValues) do
            If (AValues[I].Name = 'SINGER') then
            begin
              AValues[I].Value := Uppercase(AValues[I].Value);
              If (AValues[I].Value = 'SOLO 1') then
                CurDuettSinger := DS_Player1
              Else If (AValues[I].Value = 'SOLO 2') then
                CurDuettSinger := DS_Player2
              Else
                CurDuettSinger := DS_Both; //In case of "Group" or anything that is not identified use Both
            end;
        end

        Else If (Tag = '!--') then
        begin //Comment, this may be Artist or Title Info
          I := Pos(':', Values); //Search for Delimiter

          If (I <> 0) then //If Found check for Title or Artist
          begin
            //Copy Title or Artist Tag to Tag String
            Tag := Uppercase(Trim(Copy(Values, 1, I - 1)));

            If (Tag = 'ARTIST') then
            begin
              SongInfo.Header.Artist := Trim(Copy(Values, I + 1, Length(Values) - I - 2));
              Inc(SongInfo.ID); //Inc SongID when header Information is added
            end
            Else If (Tag = 'TITLE') then
            begin
              SongInfo.Header.Title := Trim(Copy(Values, I + 1, Length(Values) - I - 2));
              Inc(SongInfo.ID); //Inc SongID when header Information is added
            end;
          end;
        end

        //Parsing for weird "Die toten Hosen" Tags
        Else If (Tag = '!--ARTIST:') OR (Tag = '!--ARTIST') then
        begin //Comment, with Artist Info
          I := Pos(':', Values); //Search for Delimiter

          Inc(SongInfo.ID); //Inc SongID when header Information is added

          SongInfo.Header.Artist := Trim(Copy(Values, I + 1, Length(Values) - I - 2));
        end

        Else If (Tag = '!--TITLE:') OR (Tag = '!--TITLE') then
        begin //Comment, with Artist Info
          I := Pos(':', Values); //Search for Delimiter

          Inc(SongInfo.ID); //Inc SongID when header Information is added

          SongInfo.Header.Title := Trim(Copy(Values, I + 1, Length(Values) - I - 2));
        end

        Else If (Tag = '/MELODY') then
        begin
          ParserState := PS_None;
          Exit; //Stop Parsing, Melody iTag ended
        end
      end;


      PS_Sentence: begin //Search for Notes or eo Sentence
        If (Tag = 'NOTE') then
        begin //Found Note
          //Get Values
          MakeValuesArray;

          NoteType := NT_Normal;
          For I := 0 to High(AValues) do
          begin
            If (AValues[I].Name = 'DURATION') then
            begin
              Duration := StrtoIntDef(AValues[I].Value, -1);
              If (Duration < 0) then
              begin
                Result := False;
                ErrorMessage := 'Can''t read duration from Note in Line: "' + Line + '"';
                Exit;
              end;
            end
            Else If (AValues[I].Name = 'MIDINOTE') then
            begin
              Tone := StrtoIntDef(AValues[I].Value, 0);
            end
            Else If (AValues[I].Name = 'BONUS') AND (Uppercase(AValues[I].Value) = 'YES') then
            begin
              NoteType := NT_Golden;
            end
            Else If (AValues[I].Name = 'FREESTYLE') AND (Uppercase(AValues[I].Value) = 'YES') then
            begin
              NoteType := NT_Freestyle;
            end
            Else If (AValues[I].Name = 'LYRIC') then
            begin
              Lyric := AValues[I].Value;

              If (Length(Lyric) > 0) then
              begin
                If (Lyric = '-') then
                  Lyric[1] := Settings.DashReplacement;

                If (not BindLyrics) then
                  Lyric := ' ' + Lyric;


                If (Length(Lyric) > 2) AND (Lyric[Length(Lyric)-1] = ' ') AND (Lyric[Length(Lyric)] = '-') then
                begin //Between this and the next Lyric should be no space
                  BindLyrics := True;
                  SetLength(Lyric, Length(Lyric) - 2);
                end
                else
                  BindLyrics := False; //There should be a Space
              end;
            end;
          end;

          //Add Note
          I := SongInfo.CountSentences - 1;

          If (Length(Lyric) > 0) then
          begin //Real note, no rest
            //First Note of Sentence
            If (Length(SongInfo.Sentences) < SongInfo.CountSentences) then
            begin
              SetLength(SongInfo.Sentences, SongInfo.CountSentences);
              SetLength(SongInfo.Sentences[I].Notes, 0);
            end;

            //First Note of Song -> Generate Gap
            If (FirstNote) then
            begin
              //Calculate Gap
              If (SongInfo.Header.Resolution <> 0) AND (SongInfo.Header.BPM <> 0) then
                SongInfo.Header.Gap := Round(CurPosinSong / (SongInfo.Header.BPM*SongInfo.Header.Resolution) * 60000)
              Else
              begin
                Result := False;
                ErrorMessage := 'Can''t calculate Gap, no Resolution or BPM present.';
                Exit;
              end;

              CurPosinSong := 0; //Start at 0, because Gap goes until here
              Inc(SongInfo.ID); //Add Header Value therefore Inc
              FirstNote := False;
            end;

            J := Length(SongInfo.Sentences[I].Notes);
            SetLength(SongInfo.Sentences[I].Notes, J + 1);
            SongInfo.Sentences[I].Notes[J].Start := CurPosinSong;
            SongInfo.Sentences[I].Notes[J].Duration := Duration;
            SongInfo.Sentences[I].Notes[J].Tone := Tone;
            SongInfo.Sentences[I].Notes[J].NoteTyp := NoteType;
            SongInfo.Sentences[I].Notes[J].Lyric := Lyric;

            //Inc Pos in Song
            Inc(CurPosInSong, Duration);
          end
          else
          begin
            //just change pos in Song
            Inc(CurPosInSong, Duration);
          end;


        end
        Else If (Tag = '/SENTENCE') then
        begin //End of Sentence Tag
          ParserState := PS_Melody;

          //Delete Sentence if no Note is Added
          If (Length(SongInfo.Sentences) <> SongInfo.CountSentences) then
          begin
            SongInfo.CountSentences := Length(SongInfo.Sentences);
          end;
        end;
      end;
    end;

  end
  else  //Empty Line -> parsed succesful ;)
    Result := true;
end;

Function  TParser.ParseConfigforEdition(const Filename: String): String;
var
  txt: TStringlist;
  I: Integer;
  J, K: Integer;
  S: String;
begin
  Result := '';
  txt := TStringlist.Create;
  try
    txt.LoadFromFile(Filename);

    For I := 0 to txt.Count-1 do
    begin
      S := Trim(txt.Strings[I]);
      J := Pos('<PRODUCT_NAME>', S);

      If (J <> 0) then
      begin
        Inc(J, 14);
        K := Pos('</PRODUCT_NAME>', S);
        If (K<J) then K := Length(S) + 1;

        Result := Copy(S, J, K - J);
        Break;
      end;
    end;

    Edition := Result;
  finally
    txt.Free;
  end;
end;

end.