scripts/etf2ly.py

   1 #!@PYTHON@
   2
   3 # info mostly taken from looking at files. See also
   4 # http://lilypond.org/wiki/?EnigmaTransportFormat
   5
   6 # This supports
   7 #
   8 #  * notes
   9 #  * rests
  10 #  * ties
  11 #  * slurs
  12 #  * lyrics
  13 #  * articulation
  14 #  * grace notes
  15 #  * tuplets
  16 #
  17
  18 # todo:
  19 #  * slur/stem directions
  20 #  * voices (2nd half of frame?)
  21 #  * more intelligent lyrics
  22 #  * beams (better use autobeam?)
  23 #  * more robust: try entertainer.etf (freenote)
  24 #  * dynamics
  25 #  * empty measures (eg. twopt03.etf from freenote)
  26 #
  27
  28
  29 program_name = 'etf2ly'
  30 version = '@TOPLEVEL_VERSION@'
  31 if version == '@' + 'TOPLEVEL_VERSION' + '@':
  32         version = '(unknown version)'      # uGUHGUHGHGUGH
  33
  34 import __main__
  35 import getopt
  36 import sys
  37 import re
  38 import string
  39 import os
  40
  41 finale_clefs= ['treble', 'alto', 'tenor', 'bass', 'percussion', 'treble_8', 'bass_8', 'baritone']
  42
  43 def lily_clef (fin):
  44         try:
  45                 return finale_clefs[fin]
  46         except IndexError:
  47                 sys.stderr.write ( '\nHuh? Found clef number %d\n' % fin)
  48
  49         return 'treble'
  50
  51
  52
  53 def gulp_file(f):
  54         return open (f).read ()
  55
  56 # notename 0 == central C
  57 distances = [0, 2, 4, 5, 7, 9, 11, 12]
  58 def semitones (name, acc):
  59         return (name / 7 ) * 12 + distances[name % 7] + acc
  60
  61 # represent pitches as (notename, alteration), relative to C-major scale
  62 def transpose(orig, delta):
  63         (oname, oacc) = orig
  64         (dname, dacc) = delta
  65
  66         old_pitch =semitones (oname, oacc)
  67         delta_pitch = semitones (dname, dacc)
  68         nname = (oname + dname)
  69         nacc = oacc
  70         new_pitch = semitones (nname, nacc)
  71
  72         nacc = nacc - (new_pitch - old_pitch - delta_pitch)
  73
  74         return (nname, nacc)
  75
  76
  77
  78 # find transposition of C-major scale that belongs here.
  79 def interpret_finale_key_sig (finale_id):
  80         p = (0,0)
  81         if 0 <= finale_id < 7:
  82                 while finale_id > 0:
  83                         p = transpose (p, (4,0)) # a fifth up
  84                         finale_id = finale_id - 1
  85         elif 248 < finale_id <= 255:
  86                 while finale_id < 256:
  87                         p = transpose (p, (3,0))
  88                         finale_id = finale_id + 1
  89
  90         p  = (p[0] % 7, p[1])
  91         return p
  92
  93 # should cache this.
  94 def find_scale (transposition):
  95         cscale = map (lambda x: (x,0), range (0,7))
  96         trscale = map(lambda x, k=transposition: transpose(x, k), cscale)
  97
  98         return trscale
  99 def EDU_to_duration (edu):
 100         log = 1
 101         d = 4096
 102         while d > edu:
 103                 d = d >> 1
 104                 log = log << 1
 105
 106         edu = edu - d
 107         dots = 0
 108         if edu == d /2:
 109                 dots = 1
 110         elif edu == d*3/4:
 111                 dots = 2
 112         return (log, dots)
 113
 114 def rat_to_lily_duration (rat):
 115         (n,d) = rat
 116
 117         basedur = 1
 118         while d and  d % 2 == 0:
 119                 basedur = basedur << 1
 120                 d = d >> 1
 121
 122         str = 's%d' % basedur
 123         if n <> 1:
 124                 str = str + '*%d' % n
 125         if d <> 1:
 126                 str = str + '/%d' % d
 127
 128         return str
 129
 130 def gcd (a,b):
 131         if b == 0:
 132                 return a
 133         c = a
 134         while c:
 135                 c = a % b
 136                 a = b
 137                 b = c
 138         return a
 139
 140
 141 def rat_simplify (r):
 142         (n,d) = r
 143         if d < 0:
 144                 d = -d
 145                 n = -n
 146         if n == 0:
 147                 return (0,1)
 148         else:
 149                 g = gcd (n, d)
 150                 return (n/g, d/g)
 151
 152 def rat_multiply (a,b):
 153         (x,y) = a
 154         (p,q) = b
 155
 156         return rat_simplify ((x*p, y*q))
 157
 158 def rat_add (a,b):
 159         (x,y) = a
 160         (p,q) = b
 161
 162         return rat_simplify ((x*q + p*y, y*q))
 163
 164 def rat_neg (a):
 165         (p,q) = a
 166         return (-p,q)
 167
 168
 169
 170 def rat_subtract (a,b ):
 171         return rat_add (a, rat_neg (b))
 172
 173 def lily_notename (tuple2):
 174         (n, a) = tuple2
 175         nn = chr ((n+ 2)%7 + ord ('a'))
 176
 177         return nn + {-2:'eses', -1:'es', 0:'', 1:'is', 2:'isis'}[a]
 178
 179
 180 class Tuplet:
 181         def __init__ (self, number):
 182                 self.start_note = number
 183                 self.finale = []
 184
 185         def append_finale (self, fin):
 186                 self.finale.append (fin)
 187
 188         def factor (self):
 189                 n = self.finale[0][2]*self.finale[0][3]
 190                 d = self.finale[0][0]*self.finale[0][1]
 191                 return rat_simplify( (n, d))
 192
 193         def dump_start (self):
 194                 return '\\times %d/%d { ' % self.factor ()
 195
 196         def dump_end (self):
 197                 return ' }'
 198
 199         def calculate (self, chords):
 200                 edu_left = self.finale[0][0] * self.finale[0][1]
 201
 202                 startch = chords[self.start_note]
 203                 c = startch
 204                 while c and edu_left:
 205                         c.tuplet = self
 206                         if c == startch:
 207                                 c.chord_prefix = self.dump_start () + c.chord_prefix
 208
 209                         if not c.grace:
 210                                 edu_left = edu_left - c.EDU_duration ()
 211                         if edu_left == 0:
 212                                 c.chord_suffix = c.chord_suffix+ self.dump_end ()
 213                         c = c.next
 214
 215                 if edu_left:
 216                         sys.stderr.write ("\nHuh? Tuplet starting at entry %d was too short." % self.start_note)
 217
 218 class Slur:
 219         def __init__ (self, number, params):
 220                 self.number = number
 221                 self.finale = params
 222
 223         def append_entry (self, finale_e):
 224                 self.finale.append (finale_e)
 225
 226         def calculate (self, chords):
 227                 startnote = self.finale[5]
 228                 endnote = self.finale[3*6 + 2]
 229                 try:
 230                         cs = chords[startnote]
 231                         ce = chords[endnote]
 232
 233                         if not cs or not ce:
 234                                 raise IndexError
 235
 236                         cs.note_suffix = '-(' + cs.note_suffix
 237                         ce.note_suffix = ce.note_suffix + '-)'
 238
 239                 except IndexError:
 240                         sys.stderr.write ("""\nHuh? Slur no %d between (%d,%d), with %d notes""" % (self.number,  startnote, endnote, len (chords)))
 241
 242
 243 class Global_measure:
 244         def __init__ (self, number):
 245                 self.timesig = ''
 246                 self.number = number
 247                 self.keysignature = None
 248                 self.scale = None
 249                 self.force_break = 0
 250
 251                 self.repeats = []
 252                 self.finale = []
 253
 254         def __str__ (self):
 255                 return `self.finale `
 256
 257         def set_timesig (self, finale):
 258                 (beats, fdur) = finale
 259                 (log, dots) = EDU_to_duration (fdur)
 260                 if dots <> 0:
 261                         sys.stderr.write ("\nHuh? Beat duration has a dot? (EDU Duration = %d)" % fdur)
 262                 self.timesig = (beats, log)
 263
 264         def length (self):
 265                 return self.timesig
 266
 267         def set_keysig (self, finale):
 268                 k = interpret_finale_key_sig (finale)
 269                 self.keysignature = k
 270                 self.scale = find_scale (k)
 271
 272         def set_flags (self,flag1, flag2):
 273
 274                 # flag1 isn't all that interesting.
 275                 if flag2 & 0x8000:
 276                         self.force_break = 1
 277
 278                 if flag2 & 0x0008:
 279                         self.repeats.append ('start')
 280                 if flag2 & 0x0004:
 281                         self.repeats.append ('stop')
 282
 283                 if flag2 & 0x0002:
 284                         if flag2 & 0x0004:
 285                                 self.repeats.append ('bracket')
 286
 287 articulation_dict ={
 288         94: '^',
 289         109: '\\prall',
 290         84: '\\turn',
 291         62: '\\mordent',
 292         85: '\\fermata',
 293         46: '.',
 294 #       3: '>',
 295 #       18: '\arpeggio' ,
 296 }
 297
 298 class Articulation_def:
 299         def __init__ (self, n, a, b):
 300                 self.finale_glyph = a & 0xff
 301                 self.number = n
 302
 303         def dump (self):
 304                 try:
 305                         return articulation_dict[self.finale_glyph]
 306                 except KeyError:
 307                         sys.stderr.write ("\nUnknown articulation no. %d" % self.finale_glyph)
 308                         sys.stderr.write ("\nPlease add an entry to articulation_dict in the Python source")
 309                         return None
 310
 311 class Articulation:
 312         def __init__ (self, a,b, finale):
 313                 self.definition = finale[0]
 314                 self.notenumber = b
 315
 316         def calculate (self, chords, defs):
 317                 c = chords[self.notenumber]
 318
 319                 adef = defs[self.definition]
 320                 lystr =adef.dump()
 321                 if lystr == None:
 322                         lystr = '"art"'
 323                         sys.stderr.write ("\nThis happened on note %d" % self.notenumber)
 324
 325                 c.note_suffix = '-' + lystr
 326
 327 class Syllable:
 328         def __init__ (self, a,b , finale):
 329                 self.chordnum = b
 330                 self.syllable = finale[1]
 331                 self.verse = finale[0]
 332         def calculate (self, chords, lyrics):
 333                 self.chord = chords[self.chordnum]
 334
 335 class Verse:
 336         def __init__ (self, number, body):
 337                 self.body = body
 338                 self.number = number
 339                 self.split_syllables ()
 340         def split_syllables (self):
 341                 ss = re.split ('(-| +)', self.body)
 342
 343                 sep = 0
 344                 syls = [None]
 345                 for s in ss:
 346                         if sep:
 347                                 septor = re.sub (" +", "", s)
 348                                 septor = re.sub ("-", " -- ", septor)
 349                                 syls[-1] = syls[-1] + septor
 350                         else:
 351                                 syls.append (s)
 352
 353                         sep = not sep
 354
 355                 self.syllables = syls
 356
 357         def dump (self):
 358                 str = ''
 359                 line = ''
 360                 for s in self.syllables[1:]:
 361                         line = line + ' ' + s
 362                         if len (line) > 72:
 363                                 str = str + ' ' * 4 + line + '\n'
 364                                 line = ''
 365
 366                 str = """\nverse%s = \\lyrics {\n %s}\n""" %  (encodeint (self.number - 1) ,str)
 367                 return str
 368
 369
 370 class Measure:
 371         def __init__(self, no):
 372                 self.number = no
 373                 self.frames = [0] * 4
 374                 self.flags = 0
 375                 self.clef = 0
 376                 self.finale = []
 377                 self.global_measure = None
 378                 self.staff = None
 379                 self.valid = 1
 380
 381
 382         def valid (self):
 383                 return self.valid
 384         def calculate (self):
 385                 fs = []
 386
 387                 if len (self.finale) < 2:
 388                         fs = self.finale[0]
 389
 390                         self.clef = fs[1]
 391                         self.frames = [fs[0]]
 392                 else:
 393                         fs = self.finale
 394                         self.clef = fs[0]
 395                         self.flags = fs[1]
 396                         self.frames = fs[2:]
 397
 398
 399 class Frame:
 400         def __init__ (self, finale):
 401                 self.measure = None
 402                 self.finale = finale
 403                 (number, start, end ) = finale
 404                 self.number = number
 405                 self.start = start
 406                 self.end = end
 407                 self.chords  = []
 408
 409         def set_measure (self, m):
 410                 self.measure = m
 411
 412         def calculate (self):
 413
 414                 # do grace notes.
 415                 lastch = None
 416                 for c in self.chords:
 417                         if c.grace and (lastch == None or (not lastch.grace)):
 418                                 c.chord_prefix = r'\grace {' + c.chord_prefix
 419                         elif not c.grace and lastch and lastch.grace:
 420                                 lastch.chord_suffix = lastch.chord_suffix + ' } '
 421
 422                         lastch = c
 423
 424
 425
 426         def dump (self):
 427                 str = '%% FR(%d)\n' % self.number
 428                 left = self.measure.global_measure.length ()
 429
 430
 431                 ln = ''
 432                 for c in self.chords:
 433                         add = c.ly_string () + ' '
 434                         if len (ln) + len(add) > 72:
 435                                 str = str + ln + '\n'
 436                                 ln = ''
 437                         ln = ln + add
 438                         left = rat_subtract (left, c.length ())
 439
 440                 str = str + ln
 441
 442                 if left[0] < 0:
 443                         sys.stderr.write ("""\nHuh? Going backwards in frame no %d, start/end (%d,%d)""" % (self.number, self.start, self.end))
 444                         left = (0,1)
 445                 if left[0]:
 446                         str = str + rat_to_lily_duration (left)
 447
 448                 str = str + '  | \n'
 449                 return str
 450
 451 def encodeint (i):
 452         return chr ( i  + ord ('A'))
 453
 454 class Staff:
 455         def __init__ (self, number):
 456                 self.number = number
 457                 self.measures = []
 458
 459         def get_measure (self, no):
 460                 fill_list_to (self.measures, no)
 461
 462                 if self.measures[no] == None:
 463                         m = Measure (no)
 464                         self.measures [no] =m
 465                         m.staff = self
 466
 467                 return self.measures[no]
 468         def staffid (self):
 469                 return 'staff' + encodeint (self.number - 1)
 470         def layerid (self, l):
 471                 return self.staffid() +  'layer%s' % chr (l -1 + ord ('A'))
 472
 473         def dump_time_key_sigs (self):
 474                 k  = ''
 475                 last_key = None
 476                 last_time = None
 477                 last_clef = None
 478                 gap = (0,1)
 479                 for m in self.measures[1:]:
 480                         if not m or not m.valid:
 481                                 continue # ugh.
 482
 483                         g = m.global_measure
 484                         e = ''
 485
 486                         if g:
 487                                 if last_key <> g.keysignature:
 488                                         e = e + "\\key %s \\major " % lily_notename (g.keysignature)
 489                                         last_key = g.keysignature
 490                                 if last_time <> g.timesig :
 491                                         e = e + "\\time %d/%d " % g.timesig
 492                                         last_time = g.timesig
 493
 494                                 if 'start' in g.repeats:
 495                                         e = e + ' \\bar "|:" '
 496
 497
 498                                 # we don't attempt voltas since they fail easily.
 499                                 if 0 : # and g.repeat_bar == '|:' or g.repeat_bar == ':|:' or g.bracket:
 500                                         strs = []
 501                                         if g.repeat_bar == '|:' or g.repeat_bar == ':|:' or g.bracket == 'end':
 502                                                 strs.append ('#f')
 503
 504
 505                                         if g.bracket == 'start':
 506                                                 strs.append ('"0."')
 507
 508                                         str = string.join (map (lambda x: '(volta %s)' % x, strs))
 509
 510                                         e = e + ' \\property Score.repeatCommands =  #\'(%s) ' % str
 511
 512                                 if g.force_break:
 513                                         e = e + ' \\break '
 514
 515                         if last_clef <> m.clef :
 516                                 e = e + '\\clef "%s"' % lily_clef (m.clef)
 517                                 last_clef = m.clef
 518                         if e:
 519                                 if gap <> (0,1):
 520                                         k = k +' ' + rat_to_lily_duration (gap) + '\n'
 521                                 gap = (0,1)
 522                                 k = k + e
 523
 524                         if g:
 525                                 gap = rat_add (gap, g.length ())
 526                                 if 'stop' in g.repeats:
 527                                         k = k + ' \\bar ":|" '
 528
 529                 k = '%sglobal = \\notes  { %s }\n\n ' % (self.staffid (), k)
 530                 return k
 531
 532         def dump (self):
 533                 str = ''
 534
 535
 536                 layerids = []
 537                 for x in range (1,5): # 4 layers.
 538                         laystr =  ''
 539                         last_frame = None
 540                         first_frame = None
 541                         gap = (0,1)
 542                         for m in self.measures[1:]:
 543                                 if not m or not m.valid:
 544                                         sys.stderr.write ("Skipping non-existant or invalid measure\n")
 545                                         continue
 546
 547                                 fr = None
 548                                 try:
 549                                         fr = m.frames[x]
 550                                 except IndexError:
 551                                         sys.stderr.write ("Skipping nonexistent frame %d\n" % x)
 552                                         laystr = laystr + "%% non existent frame %d (skipped) \n" % x
 553                                 if fr:
 554                                         first_frame = fr
 555                                         if gap <> (0,1):
 556                                                 laystr = laystr +'} %s {\n ' % rat_to_lily_duration (gap)
 557                                                 gap = (0,1)
 558                                         laystr = laystr + fr.dump ()
 559                                 else:
 560                                         if m.global_measure :
 561                                                 gap = rat_add (gap, m.global_measure.length ())
 562                                         else:
 563                                                 sys.stderr.write ( \
 564                                                         "No global measure for staff %d measure %d\n"
 565                                                         % (self.number, m.number))
 566                         if first_frame:
 567                                 l = self.layerid (x)
 568                                 laystr = '%s =  \\notes { { %s } }\n\n' % (l, laystr)
 569                                 str = str  + laystr
 570                                 layerids.append (l)
 571
 572                 str = str +  self.dump_time_key_sigs ()
 573                 stafdef = '\\%sglobal' % self.staffid ()
 574                 for i in layerids:
 575                         stafdef = stafdef + ' \\' + i
 576
 577
 578                 str = str + '%s = \\context Staff = %s <\n %s\n >\n' % \
 579                       (self.staffid (), self.staffid (), stafdef)
 580                 return str
 581
 582
 583
 584 def ziplist (l):
 585         if len (l) < 2:
 586                 return []
 587         else:
 588                 return [(l[0], l[1])] + ziplist (l[2:])
 589
 590
 591 class Chord:
 592         def __init__ (self, number, contents):
 593                 self.pitches = []
 594                 self.frame = None
 595                 self.finale = contents[:7]
 596
 597                 self.notelist = ziplist (contents[7:])
 598                 self.duration  = None
 599                 self.next = None
 600                 self.prev = None
 601                 self.number = number
 602                 self.note_prefix= ''
 603                 self.note_suffix = ''
 604                 self.chord_suffix = ''
 605                 self.chord_prefix = ''
 606                 self.tuplet = None
 607                 self.grace = 0
 608
 609         def measure (self):
 610                 if not self.frame:
 611                         return None
 612                 return self.frame.measure
 613
 614         def length (self):
 615                 if self.grace:
 616                         return (0,1)
 617
 618                 l = (1, self.duration[0])
 619
 620                 d = 1 << self.duration[1]
 621
 622                 dotfact = rat_subtract ((2,1), (1,d))
 623                 mylen =  rat_multiply (dotfact, l)
 624
 625                 if self.tuplet:
 626                         mylen = rat_multiply (mylen, self.tuplet.factor())
 627                 return mylen
 628
 629
 630         def EDU_duration (self):
 631                 return self.finale[2]
 632         def set_duration (self):
 633                 self.duration = EDU_to_duration(self.EDU_duration ())
 634
 635         def calculate (self):
 636                 self.find_realpitch ()
 637                 self.set_duration ()
 638
 639                 flag = self.finale[4]
 640                 if Chord.GRACE_MASK & flag:
 641                         self.grace = 1
 642
 643
 644         def find_realpitch (self):
 645
 646                 meas = self.measure ()
 647                 tiestart = 0
 648                 if not meas or not meas.global_measure  :
 649                         sys.stderr.write ('note %d not in measure\n' % self.number)
 650                 elif not meas.global_measure.scale:
 651                         sys.stderr.write ('note %d: no scale in this measure.' % self.number)
 652                 else:
 653
 654                         for p in self.notelist:
 655                                 (pitch, flag) = p
 656
 657
 658                                 nib1 = pitch & 0x0f
 659
 660                                 if nib1 > 8:
 661                                         nib1 = -(nib1 - 8)
 662                                 rest = pitch / 16
 663
 664                                 scale =  meas.global_measure.scale
 665                                 (sn, sa) =scale[rest % 7]
 666                                 sn = sn + (rest - (rest%7)) + 7
 667                                 acc = sa + nib1
 668                                 self.pitches.append ((sn, acc))
 669                                 tiestart =  tiestart or (flag & Chord.TIE_START_MASK)
 670                 if tiestart :
 671                         self.chord_suffix = self.chord_suffix + ' ~ '
 672
 673         REST_MASK = 0x40000000L
 674         TIE_START_MASK = 0x40000000L
 675         GRACE_MASK = 0x00800000L
 676
 677         def ly_string (self):
 678                 s = ''
 679
 680                 rest = ''
 681
 682
 683                 if not (self.finale[4] & Chord.REST_MASK):
 684                         rest = 'r'
 685
 686                 for p in self.pitches:
 687                         (n,a) =  p
 688                         o = n/ 7
 689                         n = n % 7
 690
 691                         nn = lily_notename ((n,a))
 692
 693                         if o < 0:
 694                                 nn = nn + (',' * -o)
 695                         elif o > 0:
 696                                 nn = nn + ('\'' * o)
 697
 698                         if s:
 699                                 s = s + ' '
 700
 701                         if rest:
 702                                 nn = rest
 703
 704                         s = s + nn
 705
 706                 if not self.pitches:
 707                         s  = 'r'
 708                 if len (self.pitches) > 1:
 709                         s = '<< %s >>' % s
 710
 711                 s = s + '%d%s' % (self.duration[0], '.'* self.duration[1])
 712                 s = self.note_prefix + s + self.note_suffix
 713
 714                 s = self.chord_prefix + s + self.chord_suffix
 715
 716                 return s
 717
 718
 719 def fill_list_to (list, no):
 720         """
 721 Add None to LIST until it contains entry number NO.
 722         """
 723         while len (list) <= no:
 724                 list.extend ([None] * (no - len(list) + 1))
 725         return list
 726
 727 def read_finale_value (str):
 728         """
 729 Pry off one value from STR. The value may be $hex, decimal, or "string".
 730 Return: (value, rest-of-STR)
 731         """
 732         while str and str[0] in ' \t\n':
 733                 str = str[1:]
 734
 735         if not str:
 736                 return (None,str)
 737
 738         if str[0] == '$':
 739                 str = str [1:]
 740
 741                 hex = ''
 742                 while str and str[0] in '0123456789ABCDEF':
 743                         hex = hex  + str[0]
 744                         str = str[1:]
 745
 746
 747                 return (string.atol (hex, 16), str)
 748         elif str[0] == '"':
 749                 str = str[1:]
 750                 s = ''
 751                 while str and str[0] <> '"':
 752                         s = s + str[0]
 753                         str = str[1:]
 754
 755                 return (s,str)
 756         elif str[0] in '-0123456789':
 757                 dec = ''
 758                 while str and str[0] in '-0123456789':
 759                         dec = dec  + str[0]
 760                         str = str[1:]
 761
 762                 return (string.atoi (dec), str)
 763         else:
 764                 sys.stderr.write ("Can't convert `%s'\n" % str)
 765                 return (None, str)
 766
 767
 768
 769
 770 def parse_etf_file (fn, tag_dict):
 771
 772         """ Read FN, putting ETF info into
 773         a giant dictionary.  The keys of TAG_DICT indicate which tags
 774         to put into the dict.
 775         """
 776
 777         sys.stderr.write ('parsing ... ' )
 778         f = open (fn)
 779
 780         gulp = re.sub ('[\n\r]+', '\n',  f.read ())
 781         ls = string.split (gulp, '\n^')
 782
 783         etf_file_dict = {}
 784         for k in tag_dict.keys ():
 785                 etf_file_dict[k] = {}
 786
 787         last_tag = None
 788         last_numbers = None
 789
 790
 791         for l in  ls:
 792                 m = re.match ('^([a-zA-Z0-9&]+)\(([^)]+)\)', l)
 793                 if m and tag_dict.has_key (m.group (1)):
 794                         tag = m.group (1)
 795
 796                         indices = tuple (map (string.atoi, string.split (m.group (2), ',')))
 797                         content = l[m.end (2)+1:]
 798
 799
 800                         tdict = etf_file_dict[tag]
 801                         if not tdict.has_key (indices):
 802                                 tdict[indices] = []
 803
 804
 805                         parsed = []
 806
 807                         if tag == 'verse' or tag == 'block':
 808                                 m2 = re.match ('(.*)\^end', content)
 809                                 if m2:
 810                                         parsed = [m2.group (1)]
 811                         else:
 812                                 while content:
 813                                         (v, content) = read_finale_value (content)
 814                                         if v <> None:
 815                                                 parsed.append (v)
 816
 817                         tdict [indices].extend (parsed)
 818
 819                         last_indices = indices
 820                         last_tag = tag
 821
 822                         continue
 823
 824 # let's not do this: this really confuses when eE happens to be before  a ^text.
 825 #               if last_tag and last_indices:
 826 #                       etf_file_dict[last_tag][last_indices].append (l)
 827
 828         sys.stderr.write ('\n')
 829         return etf_file_dict
 830
 831
 832
 833
 834
 835 class Etf_file:
 836         def __init__ (self, name):
 837                 self.measures = [None]
 838                 self.chords = [None]
 839                 self.frames = [None]
 840                 self.tuplets = [None]
 841                 self.staffs = [None]
 842                 self.slurs = [None]
 843                 self.articulations = [None]
 844                 self.syllables = [None]
 845                 self.verses = [None]
 846                 self.articulation_defs = [None]
 847
 848                 ## do it
 849                 self.parse (name)
 850
 851         def get_global_measure (self, no):
 852                 fill_list_to (self.measures, no)
 853                 if self.measures[no] == None:
 854                         self.measures [no] = Global_measure (no)
 855
 856                 return self.measures[no]
 857
 858
 859         def get_staff(self,staffno):
 860                 fill_list_to (self.staffs, staffno)
 861                 if self.staffs[staffno] == None:
 862                         self.staffs[staffno] = Staff (staffno)
 863
 864                 return self.staffs[staffno]
 865
 866         # staff-spec
 867         def try_IS (self, indices, contents):
 868                 pass
 869
 870         def try_BC (self, indices, contents):
 871                 bn = indices[0]
 872                 where = contents[0] / 1024.0
 873         def try_TP(self,  indices, contents):
 874                 (nil, num) = indices
 875
 876                 if self.tuplets[-1] == None or num <> self.tuplets[-1].start_note:
 877                         self.tuplets.append (Tuplet (num))
 878
 879                 self.tuplets[-1].append_finale (contents)
 880
 881         def try_IM (self, indices, contents):
 882                 (a,b) = indices
 883                 fin = contents
 884                 self.articulations.append (Articulation (a,b,fin))
 885         def try_verse (self, indices, contents):
 886                 a = indices[0]
 887                 body = contents[0]
 888
 889                 body = re.sub (r"""\^[a-z]+\([^)]+\)""", "", body)
 890                 body = re.sub ("\^[a-z]+", "", body)
 891                 self.verses.append (Verse (a, body))
 892         def try_ve (self,indices, contents):
 893                 (a,b) = indices
 894                 self.syllables.append (Syllable (a,b,contents))
 895
 896         def try_eE (self,indices, contents):
 897                 no = indices[0]
 898                 (prev, next, dur, pos, entryflag, extended, follow) = contents[:7]
 899
 900                 fill_list_to (self.chords, no)
 901                 self.chords[no]  =Chord (no, contents)
 902
 903         def try_Sx(self,indices, contents):
 904                 slurno = indices[0]
 905                 fill_list_to (self.slurs, slurno)
 906                 self.slurs[slurno] = Slur(slurno, contents)
 907
 908         def try_IX (self, indices, contents):
 909                 n = indices[0]
 910                 a = contents[0]
 911                 b = contents[1]
 912
 913                 ix= None
 914                 try:
 915                         ix = self.articulation_defs[n]
 916                 except IndexError:
 917                         ix = Articulation_def (n,a,b)
 918                         self.articulation_defs.append (Articulation_def (n, a, b))
 919
 920         def try_GF(self, indices, contents):
 921                 (staffno,measno) = indices
 922
 923                 st = self.get_staff (staffno)
 924                 meas = st.get_measure (measno)
 925                 meas.finale = contents
 926
 927         def try_FR(self, indices, contents):
 928                 frameno = indices [0]
 929
 930                 startnote = contents[0]
 931                 endnote = contents[1]
 932
 933                 fill_list_to (self.frames, frameno)
 934
 935                 self.frames[frameno] = Frame ((frameno, startnote, endnote))
 936
 937         def try_MS (self, indices, contents):
 938                 measno = indices[0]
 939                 keynum = contents[1]
 940                 meas =self. get_global_measure (measno)
 941                 meas.set_keysig (keynum)
 942
 943                 beats = contents[2]
 944                 beatlen = contents[3]
 945                 meas.set_timesig ((beats, beatlen))
 946
 947                 meas_flag1 = contents[4]
 948                 meas_flag2 = contents[5]
 949
 950                 meas.set_flags (meas_flag1, meas_flag2);
 951
 952
 953         routine_dict = {
 954                 'MS': try_MS,
 955                 'FR': try_FR,
 956                 'GF': try_GF,
 957                 'IX': try_IX,
 958                 'Sx' : try_Sx,
 959                 'eE' : try_eE,
 960                 'verse' : try_verse,
 961                 've' : try_ve,
 962                 'IM' : try_IM,
 963                 'TP' : try_TP,
 964                 'BC' : try_BC,
 965                 'IS' : try_IS,
 966                 }
 967
 968         def parse (self, etf_dict):
 969                 sys.stderr.write ('reconstructing ...')
 970                 sys.stderr.flush ()
 971
 972                 for (tag,routine) in Etf_file.routine_dict.items ():
 973                         ks = etf_dict[tag].keys ()
 974                         ks.sort ()
 975                         for k in ks:
 976                                 routine (self, k, etf_dict[tag][k])
 977
 978                 sys.stderr.write ('processing ...')
 979                 sys.stderr.flush ()
 980
 981                 self.unthread_entries ()
 982
 983                 for st in self.staffs[1:]:
 984                         if not st:
 985                                 continue
 986                         mno = 1
 987                         for m in st.measures[1:]:
 988                                 if not m:
 989                                         continue
 990
 991                                 m.calculate()
 992                                 try:
 993                                         m.global_measure = self.measures[mno]
 994                                 except IndexError:
 995                                         sys.stderr.write ("Non-existent global measure %d" % mno)
 996                                         continue
 997
 998                                 frame_obj_list = [None]
 999                                 for frno in m.frames:
1000                                         try:
1001                                                 fr = self.frames[frno]
1002                                                 frame_obj_list.append (fr)
1003                                         except IndexError:
1004                                                 sys.stderr.write ("\nNon-existent frame %d"  % frno)
1005
1006                                 m.frames = frame_obj_list
1007                                 for fr in frame_obj_list[1:]:
1008                                         if not fr:
1009                                                 continue
1010
1011                                         fr.set_measure (m)
1012
1013                                         fr.chords = self.get_thread (fr.start, fr.end)
1014                                         for c in fr.chords:
1015                                                 c.frame = fr
1016                                 mno = mno + 1
1017
1018                 for c in self.chords[1:]:
1019                         if c:
1020                                 c.calculate()
1021
1022                 for f in self.frames[1:]:
1023                         if f:
1024                                 f.calculate ()
1025
1026                 for t in self.tuplets[1:]:
1027                         t.calculate (self.chords)
1028
1029                 for s in self.slurs[1:]:
1030                         if s:
1031                                 s.calculate (self.chords)
1032
1033                 for s in self.articulations[1:]:
1034                         s.calculate (self.chords, self.articulation_defs)
1035
1036         def get_thread (self, startno, endno):
1037
1038                 thread = []
1039
1040                 c = None
1041                 try:
1042                         c = self.chords[startno]
1043                 except IndexError:
1044                         sys.stderr.write ("Huh? Frame has invalid bounds (%d,%d)\n" % (startno, endno))
1045                         return []
1046
1047
1048                 while c and c.number <> endno:
1049                         thread.append (c)
1050                         c = c.next
1051
1052                 if c:
1053                         thread.append (c)
1054
1055                 return thread
1056
1057         def dump (self):
1058                 str = ''
1059                 staffs = []
1060                 for s in self.staffs[1:]:
1061                         if s:
1062                                 str = str + '\n\n' + s.dump ()
1063                                 staffs.append ('\\' + s.staffid ())
1064
1065
1066                 # should use \addlyrics ?
1067
1068                 for v in self.verses[1:]:
1069                         str = str + v.dump()
1070
1071                 if len (self.verses) > 1:
1072                         sys.stderr.write ("\nLyrics found; edit to use \\addlyrics to couple to a staff\n")
1073
1074                 if staffs:
1075                         str = str + '\\score { < %s > } ' % string.join (staffs)
1076
1077                 return str
1078
1079
1080         def __str__ (self):
1081                 return 'ETF FILE %s %s' % (self.measures,  self.entries)
1082
1083         def unthread_entries (self):
1084                 for e in self.chords[1:]:
1085                         if not e:
1086                                 continue
1087
1088                         e.prev = self.chords[e.finale[0]]
1089                         e.next = self.chords[e.finale[1]]
1090
1091 def identify():
1092         sys.stderr.write ("%s from LilyPond %s\n" % (program_name, version))
1093
1094 def help ():
1095         sys.stdout.write("""Usage: etf2ly [OPTION]... ETF-FILE
1096
1097 Convert ETF to LilyPond.
1098
1099 Options:
1100   -h,--help          this help
1101   -o,--output=FILE   set output filename to FILE
1102   -v,--version       version information
1103
1104 Enigma Transport Format is a format used by Coda Music Technology's
1105 Finale product. This program will convert a subset of ETF to a
1106 ready-to-use lilypond file.
1107
1108 Report bugs to bug-lilypond@gnu.org
1109
1110 Written by  Han-Wen Nienhuys <hanwen@cs.uu.nl>
1111 """)
1112
1113 def print_version ():
1114         sys.stdout.write (r"""etf2ly (GNU lilypond) %s
1115
1116 This is free software.  It is covered by the GNU General Public License,
1117 and you are welcome to change it and/or distribute copies of it under
1118 certain conditions.  Invoke as `midi2ly --warranty' for more information.
1119
1120 Copyright (c) 2000 by Han-Wen Nienhuys <hanwen@cs.uu.nl>
1121 """ % version)
1122
1123
1124
1125 (options, files) = getopt.getopt (sys.argv[1:], 'vo:h', ['help','version', 'output='])
1126 out_filename = None
1127
1128 for opt in options:
1129         o = opt[0]
1130         a = opt[1]
1131         if o== '--help' or o == '-h':
1132                 help ()
1133                 sys.exit (0)
1134         if o == '--version' or o == '-v':
1135                 print_version ()
1136                 sys.exit(0)
1137
1138         if o == '--output' or o == '-o':
1139                 out_filename = a
1140         else:
1141                 print o
1142                 raise getopt.error
1143
1144 identify()
1145
1146 e = None
1147 for f in files:
1148         if f == '-':
1149                 f = ''
1150
1151         sys.stderr.write ('Processing `%s\'\n' % f)
1152
1153         dict = parse_etf_file (f, Etf_file.routine_dict)
1154         e = Etf_file(dict)
1155         if not out_filename:
1156                 out_filename = os.path.basename (re.sub ('(?i).etf$', '.ly', f))
1157
1158         if out_filename == f:
1159                 out_filename = os.path.basename (f + '.ly')
1160
1161         sys.stderr.write ('Writing `%s\'' % out_filename)
1162         ly = e.dump()
1163
1164
1165
1166         fo = open (out_filename, 'w')
1167         fo.write ('%% lily was here -- automatically converted by etf2ly from %s\n' % f)
1168         fo.write(ly)
1169         fo.close ()
1170