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 def interpret_finale_key_sig (finale_id):
  79         """
  80 find the transposition of C-major scale that belongs here.
  81
  82 we are not going to insert the correct major/minor, we only want to
  83 have the correct number of accidentals
  84 """
  85
  86         p = (0,0)
  87
  88
  89         bank_number = finale_id >> 8
  90         accidental_bits = finale_id & 0xff
  91
  92         if 0 <= accidental_bits < 7:
  93                 while accidental_bits > 0:
  94                         p = transpose (p, (4,0)) # a fifth up
  95                         accidental_bits = accidental_bits - 1
  96         elif 248 < accidental_bits <= 255:
  97                 while accidental_bits < 256:
  98                         p = transpose (p, (3,0))
  99                         accidental_bits = accidental_bits + 1
 100
 101         if bank_number == 1:
 102                 # minor scale
 103                 p = transpose (p, (5, 0))
 104         p  = (p[0] % 7, p[1])
 105
 106         return KeySignature (p, bank_number)
 107
 108 # should cache this.
 109 def find_scale (keysig):
 110         cscale = map (lambda x: (x,0), range (0,7))
 111         print "cscale: ", cscale
 112         ascale = map (lambda x: (x,0), range (-2,5))
 113         print "ascale: ", ascale
 114         transposition = keysig.pitch
 115         if keysig.sig_type == 1:
 116                 transposition = transpose(transposition, (2, -1))
 117                 transposition = (transposition[0] % 7, transposition[1])
 118                 trscale = map(lambda x, k=transposition: transpose(x, k), ascale)
 119         else:
 120                 trscale = map(lambda x, k=transposition: transpose(x, k), cscale)
 121         print "trscale: ", trscale
 122         return trscale
 123
 124 def EDU_to_duration (edu):
 125         log = 1
 126         d = 4096
 127         while d > edu:
 128                 d = d >> 1
 129                 log = log << 1
 130
 131         edu = edu - d
 132         dots = 0
 133         if edu == d /2:
 134                 dots = 1
 135         elif edu == d*3/4:
 136                 dots = 2
 137         return (log, dots)
 138
 139 def rat_to_lily_duration (rat):
 140         (n,d) = rat
 141
 142         basedur = 1
 143         while d and  d % 2 == 0:
 144                 basedur = basedur << 1
 145                 d = d >> 1
 146
 147         str = 's%d' % basedur
 148         if n <> 1:
 149                 str = str + '*%d' % n
 150         if d <> 1:
 151                 str = str + '/%d' % d
 152
 153         return str
 154
 155 def gcd (a,b):
 156         if b == 0:
 157                 return a
 158         c = a
 159         while c:
 160                 c = a % b
 161                 a = b
 162                 b = c
 163         return a
 164
 165
 166 def rat_simplify (r):
 167         (n,d) = r
 168         if d < 0:
 169                 d = -d
 170                 n = -n
 171         if n == 0:
 172                 return (0,1)
 173         else:
 174                 g = gcd (n, d)
 175                 return (n/g, d/g)
 176
 177 def rat_multiply (a,b):
 178         (x,y) = a
 179         (p,q) = b
 180
 181         return rat_simplify ((x*p, y*q))
 182
 183 def rat_add (a,b):
 184         (x,y) = a
 185         (p,q) = b
 186
 187         return rat_simplify ((x*q + p*y, y*q))
 188
 189 def rat_neg (a):
 190         (p,q) = a
 191         return (-p,q)
 192
 193
 194
 195 def rat_subtract (a,b ):
 196         return rat_add (a, rat_neg (b))
 197
 198 def lily_notename (tuple2):
 199         (n, a) = tuple2
 200         nn = chr ((n+ 2)%7 + ord ('a'))
 201
 202         return nn + {-2:'eses', -1:'es', 0:'', 1:'is', 2:'isis'}[a]
 203
 204
 205 class Tuplet:
 206         def __init__ (self, number):
 207                 self.start_note = number
 208                 self.finale = []
 209
 210         def append_finale (self, fin):
 211                 self.finale.append (fin)
 212
 213         def factor (self):
 214                 n = self.finale[0][2]*self.finale[0][3]
 215                 d = self.finale[0][0]*self.finale[0][1]
 216                 return rat_simplify( (n, d))
 217
 218         def dump_start (self):
 219                 return '\\times %d/%d { ' % self.factor ()
 220
 221         def dump_end (self):
 222                 return ' }'
 223
 224         def calculate (self, chords):
 225                 edu_left = self.finale[0][0] * self.finale[0][1]
 226
 227                 startch = chords[self.start_note]
 228                 c = startch
 229                 while c and edu_left:
 230                         c.tuplet = self
 231                         if c == startch:
 232                                 c.chord_prefix = self.dump_start () + c.chord_prefix
 233
 234                         if not c.grace:
 235                                 edu_left = edu_left - c.EDU_duration ()
 236                         if edu_left == 0:
 237                                 c.chord_suffix = c.chord_suffix+ self.dump_end ()
 238                         c = c.next
 239
 240                 if edu_left:
 241                         sys.stderr.write ("\nHuh? Tuplet starting at entry %d was too short." % self.start_note)
 242
 243 class Slur:
 244         def __init__ (self, number, params):
 245                 self.number = number
 246                 self.finale = params
 247
 248         def append_entry (self, finale_e):
 249                 self.finale.append (finale_e)
 250
 251         def calculate (self, chords):
 252                 startnote = self.finale[5]
 253                 endnote = self.finale[3*6 + 2]
 254                 try:
 255                         cs = chords[startnote]
 256                         ce = chords[endnote]
 257
 258                         if not cs or not ce:
 259                                 raise IndexError
 260
 261                         cs.note_suffix = '-(' + cs.note_suffix
 262                         ce.note_suffix = ce.note_suffix + '-)'
 263
 264                 except IndexError:
 265                         sys.stderr.write ("""\nHuh? Slur no %d between (%d,%d), with %d notes""" % (self.number,  startnote, endnote, len (chords)))
 266
 267
 268 class Global_measure:
 269         def __init__ (self, number):
 270                 self.timesig = ''
 271                 self.number = number
 272                 self.key_signature = None
 273                 self.scale = None
 274                 self.force_break = 0
 275
 276                 self.repeats = []
 277                 self.finale = []
 278
 279         def __str__ (self):
 280                 return `self.finale `
 281
 282         def set_timesig (self, finale):
 283                 (beats, fdur) = finale
 284                 (log, dots) = EDU_to_duration (fdur)
 285
 286                 if dots == 1:
 287                         beats = beats * 3
 288                         log = log * 2
 289                         dots = 0
 290
 291                 if dots <> 0:
 292                         sys.stderr.write ("\nHuh? Beat duration has  dots? (EDU Duration = %d)" % fdur)
 293                 self.timesig = (beats, log)
 294
 295         def length (self):
 296                 return self.timesig
 297
 298         def set_key_sig (self, finale):
 299                 k = interpret_finale_key_sig (finale)
 300                 self.key_signature = k
 301                 self.scale = find_scale (k)
 302
 303         def set_flags (self,flag1, flag2):
 304
 305                 # flag1 isn't all that interesting.
 306                 if flag2 & 0x8000:
 307                         self.force_break = 1
 308
 309                 if flag2 & 0x0008:
 310                         self.repeats.append ('start')
 311                 if flag2 & 0x0004:
 312                         self.repeats.append ('stop')
 313
 314                 if flag2 & 0x0002:
 315                         if flag2 & 0x0004:
 316                                 self.repeats.append ('bracket')
 317
 318 articulation_dict ={
 319         94: '^',
 320         109: '\\prall',
 321         84: '\\turn',
 322         62: '\\mordent',
 323         85: '\\fermata',
 324         46: '.',
 325 #       3: '>',
 326 #       18: '\arpeggio' ,
 327 }
 328
 329 class Articulation_def:
 330         def __init__ (self, n, a, b):
 331                 self.finale_glyph = a & 0xff
 332                 self.number = n
 333
 334         def dump (self):
 335                 try:
 336                         return articulation_dict[self.finale_glyph]
 337                 except KeyError:
 338                         sys.stderr.write ("\nUnknown articulation no. %d" % self.finale_glyph)
 339                         sys.stderr.write ("\nPlease add an entry to articulation_dict in the Python source")
 340                         return None
 341
 342 class Articulation:
 343         def __init__ (self, a,b, finale):
 344                 self.definition = finale[0]
 345                 self.notenumber = b
 346
 347         def calculate (self, chords, defs):
 348                 c = chords[self.notenumber]
 349
 350                 adef = defs[self.definition]
 351                 lystr =adef.dump()
 352                 if lystr == None:
 353                         lystr = '"art"'
 354                         sys.stderr.write ("\nThis happened on note %d" % self.notenumber)
 355
 356                 c.note_suffix = '-' + lystr
 357
 358 class Syllable:
 359         def __init__ (self, a,b , finale):
 360                 self.chordnum = b
 361                 self.syllable = finale[1]
 362                 self.verse = finale[0]
 363         def calculate (self, chords, lyrics):
 364                 self.chord = chords[self.chordnum]
 365
 366 class Verse:
 367         def __init__ (self, number, body):
 368                 self.body = body
 369                 self.number = number
 370                 self.split_syllables ()
 371         def split_syllables (self):
 372                 ss = re.split ('(-| +)', self.body)
 373
 374                 sep = 0
 375                 syls = [None]
 376                 for s in ss:
 377                         if sep:
 378                                 septor = re.sub (" +", "", s)
 379                                 septor = re.sub ("-", " -- ", septor)
 380                                 syls[-1] = syls[-1] + septor
 381                         else:
 382                                 syls.append (s)
 383
 384                         sep = not sep
 385
 386                 self.syllables = syls
 387
 388         def dump (self):
 389                 str = ''
 390                 line = ''
 391                 for s in self.syllables[1:]:
 392                         line = line + ' ' + s
 393                         if len (line) > 72:
 394                                 str = str + ' ' * 4 + line + '\n'
 395                                 line = ''
 396
 397                 str = """\nverse%s = \\lyrics {\n %s}\n""" %  (encodeint (self.number - 1) ,str)
 398                 return str
 399
 400 class KeySignature:
 401         def __init__(self, pitch, sig_type = 0):
 402                 self.pitch = pitch
 403                 self.sig_type = sig_type
 404
 405         def signature_type (self):
 406                 if self.sig_type == 1:
 407                         return "\\minor"
 408                 else:
 409                         # really only for 0, but we only know about 0 and 1
 410                         return "\\major"
 411
 412         def equal (self, other):
 413                 if other and other.pitch == self.pitch and other.sig_type == self.sig_type:
 414                         return 1
 415                 else:
 416                         return 0
 417
 418
 419 class Measure:
 420         def __init__(self, no):
 421                 self.number = no
 422                 self.frames = [0] * 4
 423                 self.flags = 0
 424                 self.clef = 0
 425                 self.finale = []
 426                 self.global_measure = None
 427                 self.staff = None
 428                 self.valid = 1
 429
 430
 431         def valid (self):
 432                 return self.valid
 433         def calculate (self):
 434                 fs = []
 435
 436                 if len (self.finale) < 2:
 437                         fs = self.finale[0]
 438
 439                         self.clef = fs[1]
 440                         self.frames = [fs[0]]
 441                 else:
 442                         fs = self.finale
 443                         self.clef = fs[0]
 444                         self.flags = fs[1]
 445                         self.frames = fs[2:]
 446
 447
 448 class Frame:
 449         def __init__ (self, finale):
 450                 self.measure = None
 451                 self.finale = finale
 452                 (number, start, end ) = finale
 453                 self.number = number
 454                 self.start = start
 455                 self.end = end
 456                 self.chords  = []
 457
 458         def set_measure (self, m):
 459                 self.measure = m
 460
 461         def calculate (self):
 462
 463                 # do grace notes.
 464                 lastch = None
 465                 for c in self.chords:
 466                         if c.grace and (lastch == None or (not lastch.grace)):
 467                                 c.chord_prefix = r'\grace {' + c.chord_prefix
 468                         elif not c.grace and lastch and lastch.grace:
 469                                 lastch.chord_suffix = lastch.chord_suffix + ' } '
 470
 471                         lastch = c
 472
 473
 474
 475         def dump (self):
 476                 str = '%% FR(%d)\n' % self.number
 477                 left = self.measure.global_measure.length ()
 478
 479
 480                 ln = ''
 481                 for c in self.chords:
 482                         add = c.ly_string () + ' '
 483                         if len (ln) + len(add) > 72:
 484                                 str = str + ln + '\n'
 485                                 ln = ''
 486                         ln = ln + add
 487                         left = rat_subtract (left, c.length ())
 488
 489                 str = str + ln
 490
 491                 if left[0] < 0:
 492                         sys.stderr.write ("""\nHuh? Going backwards in frame no %d, start/end (%d,%d)""" % (self.number, self.start, self.end))
 493                         left = (0,1)
 494                 if left[0]:
 495                         str = str + rat_to_lily_duration (left)
 496
 497                 str = str + '  | \n'
 498                 return str
 499
 500 def encodeint (i):
 501         return chr ( i  + ord ('A'))
 502
 503 class Staff:
 504         def __init__ (self, number):
 505                 self.number = number
 506                 self.measures = []
 507
 508         def get_measure (self, no):
 509                 fill_list_to (self.measures, no)
 510
 511                 if self.measures[no] == None:
 512                         m = Measure (no)
 513                         self.measures [no] =m
 514                         m.staff = self
 515
 516                 return self.measures[no]
 517         def staffid (self):
 518                 return 'staff' + encodeint (self.number - 1)
 519         def layerid (self, l):
 520                 return self.staffid() +  'layer%s' % chr (l -1 + ord ('A'))
 521
 522         def dump_time_key_sigs (self):
 523                 k  = ''
 524                 last_key = None
 525                 last_time = None
 526                 last_clef = None
 527                 gap = (0,1)
 528                 for m in self.measures[1:]:
 529                         if not m or not m.valid:
 530                                 continue # ugh.
 531
 532                         g = m.global_measure
 533                         e = ''
 534
 535                         if g:
 536                                 if g.key_signature and not g.key_signature.equal(last_key):
 537                                         pitch= g.key_signature.pitch
 538                                         e = e + "\\key %s %s " % (lily_notename (pitch),
 539                                                                   g.key_signature.signature_type())
 540
 541                                         last_key = g.key_signature
 542                                 if last_time <> g.timesig :
 543                                         e = e + "\\time %d/%d " % g.timesig
 544                                         last_time = g.timesig
 545
 546                                 if 'start' in g.repeats:
 547                                         e = e + ' \\bar "|:" '
 548
 549
 550                                 # we don't attempt voltas since they fail easily.
 551                                 if 0 : # and g.repeat_bar == '|:' or g.repeat_bar == ':|:' or g.bracket:
 552                                         strs = []
 553                                         if g.repeat_bar == '|:' or g.repeat_bar == ':|:' or g.bracket == 'end':
 554                                                 strs.append ('#f')
 555
 556
 557                                         if g.bracket == 'start':
 558                                                 strs.append ('"0."')
 559
 560                                         str = string.join (map (lambda x: '(volta %s)' % x, strs))
 561
 562                                         e = e + ' \\property Score.repeatCommands =  #\'(%s) ' % str
 563
 564                                 if g.force_break:
 565                                         e = e + ' \\break '
 566
 567                         if last_clef <> m.clef :
 568                                 e = e + '\\clef "%s"' % lily_clef (m.clef)
 569                                 last_clef = m.clef
 570                         if e:
 571                                 if gap <> (0,1):
 572                                         k = k +' ' + rat_to_lily_duration (gap) + '\n'
 573                                 gap = (0,1)
 574                                 k = k + e
 575
 576                         if g:
 577                                 gap = rat_add (gap, g.length ())
 578                                 if 'stop' in g.repeats:
 579                                         k = k + ' \\bar ":|" '
 580
 581                 k = '%sglobal = \\notes  { %s }\n\n ' % (self.staffid (), k)
 582                 return k
 583
 584         def dump (self):
 585                 str = ''
 586
 587
 588                 layerids = []
 589                 for x in range (1,5): # 4 layers.
 590                         laystr =  ''
 591                         last_frame = None
 592                         first_frame = None
 593                         gap = (0,1)
 594                         for m in self.measures[1:]:
 595                                 if not m or not m.valid:
 596                                         sys.stderr.write ("Skipping non-existant or invalid measure\n")
 597                                         continue
 598
 599                                 fr = None
 600                                 try:
 601                                         fr = m.frames[x]
 602                                 except IndexError:
 603                                         sys.stderr.write ("Skipping nonexistent frame %d\n" % x)
 604                                         laystr = laystr + "%% non existent frame %d (skipped) \n" % x
 605                                 if fr:
 606                                         first_frame = fr
 607                                         if gap <> (0,1):
 608                                                 laystr = laystr +'} %s {\n ' % rat_to_lily_duration (gap)
 609                                                 gap = (0,1)
 610                                         laystr = laystr + fr.dump ()
 611                                 else:
 612                                         if m.global_measure :
 613                                                 gap = rat_add (gap, m.global_measure.length ())
 614                                         else:
 615                                                 sys.stderr.write ( \
 616                                                         "No global measure for staff %d measure %d\n"
 617                                                         % (self.number, m.number))
 618                         if first_frame:
 619                                 l = self.layerid (x)
 620                                 laystr = '%s =  \\notes { { %s } }\n\n' % (l, laystr)
 621                                 str = str  + laystr
 622                                 layerids.append (l)
 623
 624                 str = str +  self.dump_time_key_sigs ()
 625                 stafdef = '\\%sglobal' % self.staffid ()
 626                 for i in layerids:
 627                         stafdef = stafdef + ' \\' + i
 628
 629
 630                 str = str + '%s = \\context Staff = %s <<\n %s\n >>\n' % \
 631                       (self.staffid (), self.staffid (), stafdef)
 632                 return str
 633
 634
 635
 636 def ziplist (l):
 637         if len (l) < 2:
 638                 return []
 639         else:
 640                 return [(l[0], l[1])] + ziplist (l[2:])
 641
 642
 643 class Chord:
 644         def __init__ (self, number, contents):
 645                 self.pitches = []
 646                 self.frame = None
 647                 self.finale = contents[:7]
 648
 649                 self.notelist = ziplist (contents[7:])
 650                 self.duration  = None
 651                 self.next = None
 652                 self.prev = None
 653                 self.number = number
 654                 self.note_prefix= ''
 655                 self.note_suffix = ''
 656                 self.chord_suffix = ''
 657                 self.chord_prefix = ''
 658                 self.tuplet = None
 659                 self.grace = 0
 660
 661         def measure (self):
 662                 if not self.frame:
 663                         return None
 664                 return self.frame.measure
 665
 666         def length (self):
 667                 if self.grace:
 668                         return (0,1)
 669
 670                 l = (1, self.duration[0])
 671
 672                 d = 1 << self.duration[1]
 673
 674                 dotfact = rat_subtract ((2,1), (1,d))
 675                 mylen =  rat_multiply (dotfact, l)
 676
 677                 if self.tuplet:
 678                         mylen = rat_multiply (mylen, self.tuplet.factor())
 679                 return mylen
 680
 681
 682         def EDU_duration (self):
 683                 return self.finale[2]
 684         def set_duration (self):
 685                 self.duration = EDU_to_duration(self.EDU_duration ())
 686
 687         def calculate (self):
 688                 self.find_realpitch ()
 689                 self.set_duration ()
 690
 691                 flag = self.finale[4]
 692                 if Chord.GRACE_MASK & flag:
 693                         self.grace = 1
 694
 695
 696         def find_realpitch (self):
 697
 698                 meas = self.measure ()
 699                 tiestart = 0
 700                 if not meas or not meas.global_measure  :
 701                         sys.stderr.write ('note %d not in measure\n' % self.number)
 702                 elif not meas.global_measure.scale:
 703                         sys.stderr.write ('note %d: no scale in this measure.' % self.number)
 704                 else:
 705
 706                         for p in self.notelist:
 707                                 (pitch, flag) = p
 708
 709
 710                                 nib1 = pitch & 0x0f
 711
 712                                 if nib1 > 8:
 713                                         nib1 = -(nib1 - 8)
 714                                 rest = pitch / 16
 715
 716                                 scale =  meas.global_measure.scale
 717                                 (sn, sa) =scale[rest % 7]
 718                                 sn = sn + (rest - (rest%7)) + 7
 719                                 acc = sa + nib1
 720                                 self.pitches.append ((sn, acc))
 721                                 tiestart =  tiestart or (flag & Chord.TIE_START_MASK)
 722                 if tiestart :
 723                         self.chord_suffix = self.chord_suffix + ' ~ '
 724
 725         REST_MASK = 0x40000000L
 726         TIE_START_MASK = 0x40000000L
 727         GRACE_MASK = 0x00800000L
 728
 729         def ly_string (self):
 730                 s = ''
 731
 732                 rest = ''
 733
 734
 735                 if not (self.finale[4] & Chord.REST_MASK):
 736                         rest = 'r'
 737
 738                 for p in self.pitches:
 739                         (n,a) =  p
 740                         o = n/ 7
 741                         n = n % 7
 742
 743                         nn = lily_notename ((n,a))
 744
 745                         if o < 0:
 746                                 nn = nn + (',' * -o)
 747                         elif o > 0:
 748                                 nn = nn + ('\'' * o)
 749
 750                         if s:
 751                                 s = s + ' '
 752
 753                         if rest:
 754                                 nn = rest
 755
 756                         s = s + nn
 757
 758                 if not self.pitches:
 759                         s  = 'r'
 760                 if len (self.pitches) > 1:
 761                         s = '<%s>' % s
 762
 763                 s = s + '%d%s' % (self.duration[0], '.'* self.duration[1])
 764                 s = self.note_prefix + s + self.note_suffix
 765
 766                 s = self.chord_prefix + s + self.chord_suffix
 767
 768                 return s
 769
 770
 771 def fill_list_to (list, no):
 772         """
 773 Add None to LIST until it contains entry number NO.
 774         """
 775         while len (list) <= no:
 776                 list.extend ([None] * (no - len(list) + 1))
 777         return list
 778
 779 def read_finale_value (str):
 780         """
 781 Pry off one value from STR. The value may be $hex, decimal, or "string".
 782 Return: (value, rest-of-STR)
 783         """
 784         while str and str[0] in ' \t\n':
 785                 str = str[1:]
 786
 787         if not str:
 788                 return (None,str)
 789
 790         if str[0] == '$':
 791                 str = str [1:]
 792
 793                 hex = ''
 794                 while str and str[0] in '0123456789ABCDEF':
 795                         hex = hex  + str[0]
 796                         str = str[1:]
 797
 798
 799                 return (string.atol (hex, 16), str)
 800         elif str[0] == '"':
 801                 str = str[1:]
 802                 s = ''
 803                 while str and str[0] <> '"':
 804                         s = s + str[0]
 805                         str = str[1:]
 806
 807                 return (s,str)
 808         elif str[0] in '-0123456789':
 809                 dec = ''
 810                 while str and str[0] in '-0123456789':
 811                         dec = dec  + str[0]
 812                         str = str[1:]
 813
 814                 return (string.atoi (dec), str)
 815         else:
 816                 sys.stderr.write ("Can't convert `%s'\n" % str)
 817                 return (None, str)
 818
 819
 820
 821
 822 def parse_etf_file (fn, tag_dict):
 823
 824         """ Read FN, putting ETF info into
 825         a giant dictionary.  The keys of TAG_DICT indicate which tags
 826         to put into the dict.
 827         """
 828
 829         sys.stderr.write ('parsing ... ' )
 830         f = open (fn)
 831
 832         gulp = re.sub ('[\n\r]+', '\n',  f.read ())
 833         ls = string.split (gulp, '\n^')
 834
 835         etf_file_dict = {}
 836         for k in tag_dict.keys ():
 837                 etf_file_dict[k] = {}
 838
 839         last_tag = None
 840         last_numbers = None
 841
 842
 843         for l in  ls:
 844                 m = re.match ('^([a-zA-Z0-9&]+)\(([^)]+)\)', l)
 845                 if m and tag_dict.has_key (m.group (1)):
 846                         tag = m.group (1)
 847
 848                         indices = tuple (map (string.atoi, string.split (m.group (2), ',')))
 849                         content = l[m.end (2)+1:]
 850
 851
 852                         tdict = etf_file_dict[tag]
 853                         if not tdict.has_key (indices):
 854                                 tdict[indices] = []
 855
 856
 857                         parsed = []
 858
 859                         if tag == 'verse' or tag == 'block':
 860                                 m2 = re.match ('(.*)\^end', content)
 861                                 if m2:
 862                                         parsed = [m2.group (1)]
 863                         else:
 864                                 while content:
 865                                         (v, content) = read_finale_value (content)
 866                                         if v <> None:
 867                                                 parsed.append (v)
 868
 869                         tdict [indices].extend (parsed)
 870
 871                         last_indices = indices
 872                         last_tag = tag
 873
 874                         continue
 875
 876 # let's not do this: this really confuses when eE happens to be before  a ^text.
 877 #               if last_tag and last_indices:
 878 #                       etf_file_dict[last_tag][last_indices].append (l)
 879
 880         sys.stderr.write ('\n')
 881         return etf_file_dict
 882
 883
 884
 885
 886
 887 class Etf_file:
 888         def __init__ (self, name):
 889                 self.measures = [None]
 890                 self.chords = [None]
 891                 self.frames = [None]
 892                 self.tuplets = [None]
 893                 self.staffs = [None]
 894                 self.slurs = [None]
 895                 self.articulations = [None]
 896                 self.syllables = [None]
 897                 self.verses = [None]
 898                 self.articulation_defs = [None]
 899
 900                 ## do it
 901                 self.parse (name)
 902
 903         def get_global_measure (self, no):
 904                 fill_list_to (self.measures, no)
 905                 if self.measures[no] == None:
 906                         self.measures [no] = Global_measure (no)
 907
 908                 return self.measures[no]
 909
 910
 911         def get_staff(self,staffno):
 912                 fill_list_to (self.staffs, staffno)
 913                 if self.staffs[staffno] == None:
 914                         self.staffs[staffno] = Staff (staffno)
 915
 916                 return self.staffs[staffno]
 917
 918         # staff-spec
 919         def try_IS (self, indices, contents):
 920                 pass
 921
 922         def try_BC (self, indices, contents):
 923                 bn = indices[0]
 924                 where = contents[0] / 1024.0
 925         def try_TP(self,  indices, contents):
 926                 (nil, num) = indices
 927
 928                 if self.tuplets[-1] == None or num <> self.tuplets[-1].start_note:
 929                         self.tuplets.append (Tuplet (num))
 930
 931                 self.tuplets[-1].append_finale (contents)
 932
 933         def try_IM (self, indices, contents):
 934                 (a,b) = indices
 935                 fin = contents
 936                 self.articulations.append (Articulation (a,b,fin))
 937         def try_verse (self, indices, contents):
 938                 a = indices[0]
 939                 body = contents[0]
 940
 941                 body = re.sub (r"""\^[a-z]+\([^)]+\)""", "", body)
 942                 body = re.sub ("\^[a-z]+", "", body)
 943                 self.verses.append (Verse (a, body))
 944         def try_ve (self,indices, contents):
 945                 (a,b) = indices
 946                 self.syllables.append (Syllable (a,b,contents))
 947
 948         def try_eE (self,indices, contents):
 949                 no = indices[0]
 950                 (prev, next, dur, pos, entryflag, extended, follow) = contents[:7]
 951
 952                 fill_list_to (self.chords, no)
 953                 self.chords[no]  =Chord (no, contents)
 954
 955         def try_Sx(self,indices, contents):
 956                 slurno = indices[0]
 957                 fill_list_to (self.slurs, slurno)
 958                 self.slurs[slurno] = Slur(slurno, contents)
 959
 960         def try_IX (self, indices, contents):
 961                 n = indices[0]
 962                 a = contents[0]
 963                 b = contents[1]
 964
 965                 ix= None
 966                 try:
 967                         ix = self.articulation_defs[n]
 968                 except IndexError:
 969                         ix = Articulation_def (n,a,b)
 970                         self.articulation_defs.append (Articulation_def (n, a, b))
 971
 972         def try_GF(self, indices, contents):
 973                 (staffno,measno) = indices
 974
 975                 st = self.get_staff (staffno)
 976                 meas = st.get_measure (measno)
 977                 meas.finale = contents
 978
 979         def try_FR(self, indices, contents):
 980                 frameno = indices [0]
 981
 982                 startnote = contents[0]
 983                 endnote = contents[1]
 984
 985                 fill_list_to (self.frames, frameno)
 986
 987                 self.frames[frameno] = Frame ((frameno, startnote, endnote))
 988
 989         def try_MS (self, indices, contents):
 990                 measno = indices[0]
 991                 keynum = contents[1]
 992                 meas =self. get_global_measure (measno)
 993
 994                 meas.set_key_sig (keynum)
 995
 996                 beats = contents[2]
 997                 beatlen = contents[3]
 998                 meas.set_timesig ((beats, beatlen))
 999
1000                 meas_flag1 = contents[4]
1001                 meas_flag2 = contents[5]
1002
1003                 meas.set_flags (meas_flag1, meas_flag2);
1004
1005
1006         routine_dict = {
1007                 'MS': try_MS,
1008                 'FR': try_FR,
1009                 'GF': try_GF,
1010                 'IX': try_IX,
1011                 'Sx' : try_Sx,
1012                 'eE' : try_eE,
1013                 'verse' : try_verse,
1014                 've' : try_ve,
1015                 'IM' : try_IM,
1016                 'TP' : try_TP,
1017                 'BC' : try_BC,
1018                 'IS' : try_IS,
1019                 }
1020
1021         def parse (self, etf_dict):
1022                 sys.stderr.write ('reconstructing ...')
1023                 sys.stderr.flush ()
1024
1025                 for (tag,routine) in Etf_file.routine_dict.items ():
1026                         ks = etf_dict[tag].keys ()
1027                         ks.sort ()
1028                         for k in ks:
1029                                 routine (self, k, etf_dict[tag][k])
1030
1031                 sys.stderr.write ('processing ...')
1032                 sys.stderr.flush ()
1033
1034                 self.unthread_entries ()
1035
1036                 for st in self.staffs[1:]:
1037                         if not st:
1038                                 continue
1039                         mno = 1
1040                         for m in st.measures[1:]:
1041                                 if not m:
1042                                         continue
1043
1044                                 m.calculate()
1045                                 try:
1046                                         m.global_measure = self.measures[mno]
1047                                 except IndexError:
1048                                         sys.stderr.write ("Non-existent global measure %d" % mno)
1049                                         continue
1050
1051                                 frame_obj_list = [None]
1052                                 for frno in m.frames:
1053                                         try:
1054                                                 fr = self.frames[frno]
1055                                                 frame_obj_list.append (fr)
1056                                         except IndexError:
1057                                                 sys.stderr.write ("\nNon-existent frame %d"  % frno)
1058
1059                                 m.frames = frame_obj_list
1060                                 for fr in frame_obj_list[1:]:
1061                                         if not fr:
1062                                                 continue
1063
1064                                         fr.set_measure (m)
1065
1066                                         fr.chords = self.get_thread (fr.start, fr.end)
1067                                         for c in fr.chords:
1068                                                 c.frame = fr
1069                                 mno = mno + 1
1070
1071                 for c in self.chords[1:]:
1072                         if c:
1073                                 c.calculate()
1074
1075                 for f in self.frames[1:]:
1076                         if f:
1077                                 f.calculate ()
1078
1079                 for t in self.tuplets[1:]:
1080                         t.calculate (self.chords)
1081
1082                 for s in self.slurs[1:]:
1083                         if s:
1084                                 s.calculate (self.chords)
1085
1086                 for s in self.articulations[1:]:
1087                         s.calculate (self.chords, self.articulation_defs)
1088
1089         def get_thread (self, startno, endno):
1090
1091                 thread = []
1092
1093                 c = None
1094                 try:
1095                         c = self.chords[startno]
1096                 except IndexError:
1097                         sys.stderr.write ("Huh? Frame has invalid bounds (%d,%d)\n" % (startno, endno))
1098                         return []
1099
1100
1101                 while c and c.number <> endno:
1102                         thread.append (c)
1103                         c = c.next
1104
1105                 if c:
1106                         thread.append (c)
1107
1108                 return thread
1109
1110         def dump (self):
1111                 str = ''
1112                 staffs = []
1113                 for s in self.staffs[1:]:
1114                         if s:
1115                                 str = str + '\n\n' + s.dump ()
1116                                 staffs.append ('\\' + s.staffid ())
1117
1118
1119                 # should use \addlyrics ?
1120
1121                 for v in self.verses[1:]:
1122                         str = str + v.dump()
1123
1124                 if len (self.verses) > 1:
1125                         sys.stderr.write ("\nLyrics found; edit to use \\addlyrics to couple to a staff\n")
1126
1127                 if staffs:
1128                         str = str + '\\score { << %s >> } ' % string.join (staffs)
1129
1130                 return str
1131
1132
1133         def __str__ (self):
1134                 return 'ETF FILE %s %s' % (self.measures,  self.entries)
1135
1136         def unthread_entries (self):
1137                 for e in self.chords[1:]:
1138                         if not e:
1139                                 continue
1140
1141                         e.prev = self.chords[e.finale[0]]
1142                         e.next = self.chords[e.finale[1]]
1143
1144 def identify():
1145         sys.stderr.write ("%s from LilyPond %s\n" % (program_name, version))
1146
1147 def help ():
1148         sys.stdout.write("""Usage: etf2ly [OPTIONS]... ETF-FILE
1149
1150 Convert ETF to LilyPond.
1151
1152 Options:
1153   -h, --help          print this help
1154   -o, --output=FILE   set output filename to FILE
1155   -v, --version       show version information
1156
1157 Enigma Transport Format is a format used by Coda Music Technology's
1158 Finale product. This program will convert a subset of ETF to a
1159 ready-to-use lilypond file.
1160
1161 Report bugs to bug-lilypond@gnu.org.
1162
1163 Written by  Han-Wen Nienhuys <hanwen@cs.uu.nl>.
1164
1165 """)
1166
1167 def print_version ():
1168         sys.stdout.write (r"""etf2ly (GNU lilypond) %s
1169
1170 This is free software.  It is covered by the GNU General Public License,
1171 and you are welcome to change it and/or distribute copies of it under
1172 certain conditions.  Invoke as `midi2ly --warranty' for more information.
1173
1174 Copyright (c)  2000--2003 by Han-Wen Nienhuys <hanwen@cs.uu.nl>
1175 """ % version)
1176
1177
1178
1179 (options, files) = getopt.getopt (sys.argv[1:], 'vo:h', ['help','version', 'output='])
1180 out_filename = None
1181
1182 for opt in options:
1183         o = opt[0]
1184         a = opt[1]
1185         if o== '--help' or o == '-h':
1186                 help ()
1187                 sys.exit (0)
1188         if o == '--version' or o == '-v':
1189                 print_version ()
1190                 sys.exit(0)
1191
1192         if o == '--output' or o == '-o':
1193                 out_filename = a
1194         else:
1195                 print o
1196                 raise getopt.error
1197
1198 identify()
1199
1200 e = None
1201 for f in files:
1202         if f == '-':
1203                 f = ''
1204
1205         sys.stderr.write ('Processing `%s\'\n' % f)
1206
1207         dict = parse_etf_file (f, Etf_file.routine_dict)
1208         e = Etf_file(dict)
1209         if not out_filename:
1210                 out_filename = os.path.basename (re.sub ('(?i).etf$', '.ly', f))
1211
1212         if out_filename == f:
1213                 out_filename = os.path.basename (f + '.ly')
1214
1215         sys.stderr.write ('Writing `%s\'' % out_filename)
1216         ly = e.dump()
1217
1218
1219
1220         fo = open (out_filename, 'w')
1221         fo.write ('%% lily was here -- automatically converted by etf2ly from %s\n' % f)
1222         fo.write(ly)
1223         fo.close ()
1224