scripts/etf2ly.py

   1 #!@TARGET_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 import __main__
  30 import getopt
  31 import sys
  32 import re
  33 import os
  34
  35 program_name = sys.argv[0]
  36
  37 authors = ('Jan Nieuwenhuizen <janneke@gnu.org>',
  38            'Han-Wen Nienhuys <hanwen@xs4all.nl>')
  39
  40 version = '@TOPLEVEL_VERSION@'
  41 if version == '@' + 'TOPLEVEL_VERSION' + '@':
  42     version = '(unknown version)'           # uGUHGUHGHGUGH
  43
  44 """
  45 @relocate-preamble@
  46 """
  47
  48 ################################################################
  49
  50 import lilylib as ly
  51 _ = ly._
  52
  53 finale_clefs= ['treble', 'alto', 'tenor', 'bass', 'percussion', 'treble_8', 'bass_8', 'baritone']
  54
  55 def lily_clef (fin):
  56     try:
  57         return finale_clefs[fin]
  58     except IndexError:
  59         sys.stderr.write ( '\nHuh? Found clef number %d\n' % fin)
  60
  61     return 'treble'
  62
  63
  64
  65 def gulp_file(f):
  66     return open (f).read ()
  67
  68 # notename 0 == central C
  69 distances = [0, 2, 4, 5, 7, 9, 11, 12]
  70 def semitones (name, acc):
  71     return (name / 7 ) * 12 + distances[name % 7] + acc
  72
  73 # represent pitches as (notename, alteration), relative to C-major scale
  74 def transpose(orig, delta):
  75     (oname, oacc) = orig
  76     (dname, dacc) = delta
  77
  78     old_pitch =semitones (oname, oacc)
  79     delta_pitch = semitones (dname, dacc)
  80     nname = (oname + dname)
  81     nacc = oacc
  82     new_pitch = semitones (nname, nacc)
  83
  84     nacc = nacc - (new_pitch - old_pitch - delta_pitch)
  85
  86     return (nname, nacc)
  87
  88
  89
  90 def interpret_finale_key_sig (finale_id):
  91     """
  92 find the transposition of C-major scale that belongs here.
  93
  94 we are not going to insert the correct major/minor, we only want to
  95 have the correct number of accidentals
  96 """
  97
  98     p = (0,0)
  99
 100
 101     bank_number = finale_id >> 8
 102     accidental_bits = finale_id & 0xff
 103
 104     if 0 <= accidental_bits < 7:
 105         while accidental_bits > 0:
 106             p = transpose (p, (4,0)) # a fifth up
 107             accidental_bits = accidental_bits - 1
 108     elif 248 < accidental_bits <= 255:
 109         while accidental_bits < 256:
 110             p = transpose (p, (3,0))
 111             accidental_bits = accidental_bits + 1
 112
 113     if bank_number == 1:
 114         # minor scale
 115         p = transpose (p, (5, 0))
 116     p  = (p[0] % 7, p[1])
 117
 118     return KeySignature (p, bank_number)
 119
 120 # should cache this.
 121 def find_scale (keysig):
 122     cscale = map (lambda x: (x,0), range (0,7))
 123 #        print "cscale: ", cscale
 124     ascale = map (lambda x: (x,0), range (-2,5))
 125 #        print "ascale: ", ascale
 126     transposition = keysig.pitch
 127     if keysig.sig_type == 1:
 128         transposition = transpose(transposition, (2, -1))
 129         transposition = (transposition[0] % 7, transposition[1])
 130         trscale = map(lambda x, k=transposition: transpose(x, k), ascale)
 131     else:
 132         trscale = map(lambda x, k=transposition: transpose(x, k), cscale)
 133 #        print "trscale: ", trscale
 134     return trscale
 135
 136 def EDU_to_duration (edu):
 137     log = 1
 138     d = 4096
 139     while d > edu:
 140         d = d >> 1
 141         log = log << 1
 142
 143     edu = edu - d
 144     dots = 0
 145     if edu == d /2:
 146         dots = 1
 147     elif edu == d*3/4:
 148         dots = 2
 149     return (log, dots)
 150
 151 def rational_to_lily_skip (rat):
 152     (n,d) = rat
 153
 154     basedur = 1
 155     while d and  d % 2 == 0:
 156         basedur = basedur << 1
 157         d = d >> 1
 158
 159     str = 's%d' % basedur
 160     if n <> 1:
 161         str = str + '*%d' % n
 162     if d <> 1:
 163         str = str + '/%d' % d
 164
 165     return str
 166
 167 def gcd (a,b):
 168     if b == 0:
 169         return a
 170     c = a
 171     while c:
 172         c = a % b
 173         a = b
 174         b = c
 175     return a
 176
 177
 178 def rat_simplify (r):
 179     (n,d) = r
 180     if d < 0:
 181         d = -d
 182         n = -n
 183     if n == 0:
 184         return (0,1)
 185     else:
 186         g = gcd (n, d)
 187         return (n/g, d/g)
 188
 189 def rat_multiply (a,b):
 190     (x,y) = a
 191     (p,q) = b
 192
 193     return rat_simplify ((x*p, y*q))
 194
 195 def rat_add (a,b):
 196     (x,y) = a
 197     (p,q) = b
 198
 199     return rat_simplify ((x*q + p*y, y*q))
 200
 201 def rat_neg (a):
 202     (p,q) = a
 203     return (-p,q)
 204
 205
 206
 207 def rat_subtract (a,b ):
 208     return rat_add (a, rat_neg (b))
 209
 210 def lily_notename (tuple2):
 211     (n, a) = tuple2
 212     nn = chr ((n+ 2)%7 + ord ('a'))
 213
 214     return nn + {-2:'eses', -1:'es', 0:'', 1:'is', 2:'isis'}[a]
 215
 216
 217 class Tuplet:
 218     def __init__ (self, number):
 219         self.start_note = number
 220         self.finale = []
 221
 222     def append_finale (self, fin):
 223         self.finale.append (fin)
 224
 225     def factor (self):
 226         n = self.finale[0][2]*self.finale[0][3]
 227         d = self.finale[0][0]*self.finale[0][1]
 228         return rat_simplify( (n, d))
 229
 230     def dump_start (self):
 231         return '\\times %d/%d { ' % self.factor ()
 232
 233     def dump_end (self):
 234         return ' }'
 235
 236     def calculate (self, chords):
 237         edu_left = self.finale[0][0] * self.finale[0][1]
 238
 239         startch = chords[self.start_note]
 240         c = startch
 241         while c and edu_left:
 242             c.tuplet = self
 243             if c == startch:
 244                 c.chord_prefix = self.dump_start () + c.chord_prefix
 245
 246             if not c.grace:
 247                 edu_left = edu_left - c.EDU_duration ()
 248             if edu_left == 0:
 249                 c.chord_suffix = c.chord_suffix+ self.dump_end ()
 250             c = c.next
 251
 252         if edu_left:
 253             sys.stderr.write ("\nHuh? Tuplet starting at entry %d was too short." % self.start_note)
 254
 255 class Slur:
 256     def __init__ (self, number, params):
 257         self.number = number
 258         self.finale = params
 259
 260     def append_entry (self, finale_e):
 261         self.finale.append (finale_e)
 262
 263     def calculate (self, chords):
 264         startnote = self.finale[5]
 265         endnote = self.finale[3*6 + 2]
 266         try:
 267             cs = chords[startnote]
 268             ce = chords[endnote]
 269
 270             if not cs or not ce:
 271                 raise IndexError
 272
 273             cs.note_suffix = '-(' + cs.note_suffix
 274             ce.note_suffix = ce.note_suffix + '-)'
 275
 276         except IndexError:
 277             sys.stderr.write ("""\nHuh? Slur no %d between (%d,%d), with %d notes""" % (self.number,  startnote, endnote, len (chords)))
 278
 279
 280 class Global_measure:
 281     def __init__ (self, number):
 282         self.timesig = ''
 283         self.number = number
 284         self.key_signature = None
 285         self.scale = None
 286         self.force_break = 0
 287
 288         self.repeats = []
 289         self.finale = []
 290
 291     def __str__ (self):
 292         return `self.finale `
 293
 294     def set_timesig (self, finale):
 295         (beats, fdur) = finale
 296         (log, dots) = EDU_to_duration (fdur)
 297
 298         if dots == 1:
 299             beats = beats * 3
 300             log = log * 2
 301             dots = 0
 302
 303         if dots <> 0:
 304             sys.stderr.write ("\nHuh? Beat duration has  dots? (EDU Duration = %d)" % fdur)
 305         self.timesig = (beats, log)
 306
 307     def length (self):
 308         return self.timesig
 309
 310     def set_key_sig (self, finale):
 311         k = interpret_finale_key_sig (finale)
 312         self.key_signature = k
 313         self.scale = find_scale (k)
 314
 315     def set_flags (self,flag1, flag2):
 316
 317         # flag1 isn't all that interesting.
 318         if flag2 & 0x8000:
 319             self.force_break = 1
 320
 321         if flag2 & 0x0008:
 322             self.repeats.append ('start')
 323         if flag2 & 0x0004:
 324             self.repeats.append ('stop')
 325
 326         if flag2 & 0x0002:
 327             if flag2 & 0x0004:
 328                 self.repeats.append ('bracket')
 329
 330 articulation_dict ={
 331     94: '^',
 332     109: '\\prall',
 333     84: '\\turn',
 334     62: '\\mordent',
 335     85: '\\fermata',
 336     46: '.',
 337 #        3: '>',
 338 #        18: '\arpeggio' ,
 339 }
 340
 341 class Articulation_def:
 342     def __init__ (self, n, a, b):
 343         self.finale_glyph = a & 0xff
 344         self.number = n
 345
 346     def dump (self):
 347         try:
 348             return articulation_dict[self.finale_glyph]
 349         except KeyError:
 350             sys.stderr.write ("\nUnknown articulation no. %d" % self.finale_glyph)
 351             sys.stderr.write ("\nPlease add an entry to articulation_dict in the Python source")
 352             return None
 353
 354 class Articulation:
 355     def __init__ (self, a,b, finale):
 356         self.definition = finale[0]
 357         self.notenumber = b
 358
 359     def calculate (self, chords, defs):
 360         c = chords[self.notenumber]
 361
 362         adef = defs[self.definition]
 363         lystr =adef.dump()
 364         if lystr == None:
 365             lystr = '"art"'
 366             sys.stderr.write ("\nThis happened on note %d" % self.notenumber)
 367
 368         c.note_suffix = '-' + lystr
 369
 370 class Syllable:
 371     def __init__ (self, a,b , finale):
 372         self.chordnum = b
 373         self.syllable = finale[1]
 374         self.verse = finale[0]
 375     def calculate (self, chords, lyrics):
 376         self.chord = chords[self.chordnum]
 377
 378 class Verse:
 379     def __init__ (self, number, body):
 380         self.body = body
 381         self.number = number
 382         self.split_syllables ()
 383     def split_syllables (self):
 384         ss = re.split ('(-| +)', self.body)
 385
 386         sep = 0
 387         syls = [None]
 388         for s in ss:
 389             if sep:
 390                 septor = re.sub (" +", "", s)
 391                 septor = re.sub ("-", " -- ", septor)
 392                 syls[-1] = syls[-1] + septor
 393             else:
 394                 syls.append (s)
 395
 396             sep = not sep
 397
 398         self.syllables = syls
 399
 400     def dump (self):
 401         str = ''
 402         line = ''
 403         for s in self.syllables[1:]:
 404             line = line + ' ' + s
 405             if len (line) > 72:
 406                 str = str + ' ' * 4 + line + '\n'
 407                 line = ''
 408
 409         str = """\nverse%s = \\lyricmode {\n %s }\n""" %  (encodeint (self.number - 1) ,str)
 410         return str
 411
 412 class KeySignature:
 413     def __init__(self, pitch, sig_type = 0):
 414         self.pitch = pitch
 415         self.sig_type = sig_type
 416
 417     def signature_type (self):
 418         if self.sig_type == 1:
 419             return "\\minor"
 420         else:
 421             # really only for 0, but we only know about 0 and 1
 422             return "\\major"
 423
 424     def equal (self, other):
 425         if other and other.pitch == self.pitch and other.sig_type == self.sig_type:
 426             return 1
 427         else:
 428             return 0
 429
 430
 431 class Measure:
 432     def __init__(self, no):
 433         self.number = no
 434         self.frames = [0] * 4
 435         self.flags = 0
 436         self.clef = 0
 437         self.finale = []
 438         self.global_measure = None
 439         self.staff = None
 440         self.valid = 1
 441
 442
 443     def valid (self):
 444         return self.valid
 445     def calculate (self):
 446         fs = []
 447
 448         if len (self.finale) < 2:
 449             fs = self.finale[0]
 450
 451             self.clef = fs[1]
 452             self.frames = [fs[0]]
 453         else:
 454             fs = self.finale
 455             self.clef = fs[0]
 456             self.flags = fs[1]
 457             self.frames = fs[2:]
 458
 459
 460 class Frame:
 461     def __init__ (self, finale):
 462         self.measure = None
 463         self.finale = finale
 464         (number, start, end ) = finale
 465         self.number = number
 466         self.start = start
 467         self.end = end
 468         self.chords  = []
 469
 470     def set_measure (self, m):
 471         self.measure = m
 472
 473     def calculate (self):
 474
 475         # do grace notes.
 476         lastch = None
 477         in_grace = 0
 478         for c in self.chords:
 479             if c.grace and (lastch == None or (not lastch.grace)):
 480                 c.chord_prefix = r'\grace {' + c.chord_prefix
 481                 in_grace = 1
 482             elif not c.grace and lastch and lastch.grace:
 483                 lastch.chord_suffix = lastch.chord_suffix + ' } '
 484                 in_grace = 0
 485
 486             lastch = c
 487
 488         if lastch and in_grace:
 489             lastch.chord_suffix += '}'
 490
 491
 492     def dump (self):
 493         str = '%% FR(%d)\n' % self.number
 494         left = self.measure.global_measure.length ()
 495
 496
 497         ln = ''
 498         for c in self.chords:
 499             add = c.ly_string () + ' '
 500             if len (ln) + len(add) > 72:
 501                 str = str + ln + '\n'
 502                 ln = ''
 503             ln = ln + add
 504             left = rat_subtract (left, c.length ())
 505
 506         str = str + ln
 507
 508         if left[0] < 0:
 509             sys.stderr.write ("""\nHuh? Going backwards in frame no %d, start/end (%d,%d)""" % (self.number, self.start, self.end))
 510             left = (0,1)
 511         if left[0]:
 512             str = str + rational_to_lily_skip (left)
 513
 514         str = str + '  |\n'
 515         return str
 516
 517 def encodeint (i):
 518     return chr ( i  + ord ('A'))
 519
 520 class Staff:
 521     def __init__ (self, number):
 522         self.number = number
 523         self.measures = []
 524
 525     def get_measure (self, no):
 526         fill_list_to (self.measures, no)
 527
 528         if self.measures[no] == None:
 529             m = Measure (no)
 530             self.measures [no] =m
 531             m.staff = self
 532
 533         return self.measures[no]
 534     def staffid (self):
 535         return 'staff' + encodeint (self.number - 1)
 536     def layerid (self, l):
 537         return self.staffid() +  'layer%s' % chr (l -1 + ord ('A'))
 538
 539     def dump_time_key_sigs (self):
 540         k  = ''
 541         last_key = None
 542         last_time = None
 543         last_clef = None
 544         gap = (0,1)
 545         for m in self.measures[1:]:
 546             if not m or not m.valid:
 547                 continue # ugh.
 548
 549             g = m.global_measure
 550             e = ''
 551
 552             if g:
 553                 if g.key_signature and not g.key_signature.equal(last_key):
 554                     pitch= g.key_signature.pitch
 555                     e = e + "\\key %s %s " % (lily_notename (pitch),
 556                                  g.key_signature.signature_type())
 557
 558                     last_key = g.key_signature
 559                 if last_time <> g.timesig :
 560                     e = e + "\\time %d/%d " % g.timesig
 561                     last_time = g.timesig
 562
 563                 if 'start' in g.repeats:
 564                     e = e + ' \\bar "|:" '
 565
 566
 567                 # we don't attempt voltas since they fail easily.
 568                 if 0 : # and g.repeat_bar == '|:' or g.repeat_bar == ':|:' or g.bracket:
 569                     strs = []
 570                     if g.repeat_bar == '|:' or g.repeat_bar == ':|:' or g.bracket == 'end':
 571                         strs.append ('#f')
 572
 573
 574                     if g.bracket == 'start':
 575                         strs.append ('"0."')
 576
 577                     str = ' '.join (['(volta %s)' % x for x in strs])
 578
 579                     e = e + ' \\set Score.repeatCommands =  #\'(%s) ' % str
 580
 581                 if g.force_break:
 582                     e = e + ' \\break '
 583
 584             if last_clef <> m.clef :
 585                 e = e + '\\clef "%s"' % lily_clef (m.clef)
 586                 last_clef = m.clef
 587             if e:
 588                 if gap <> (0,1):
 589                     k = k +' ' + rational_to_lily_skip (gap) + '\n'
 590                 gap = (0,1)
 591                 k = k + e
 592
 593             if g:
 594                 gap = rat_add (gap, g.length ())
 595                 if 'stop' in g.repeats:
 596                     k = k + ' \\bar ":|" '
 597
 598         k = '%sglobal = { %s }\n\n ' % (self.staffid (), k)
 599         return k
 600
 601     def dump (self):
 602         str = ''
 603
 604
 605         layerids = []
 606         for x in range (1,5): # 4 layers.
 607             laystr =  ''
 608             last_frame = None
 609             first_frame = None
 610             gap = (0,1)
 611             for m in self.measures[1:]:
 612                 if not m or not m.valid:
 613                     sys.stderr.write ("Skipping non-existant or invalid measure\n")
 614                     continue
 615
 616                 fr = None
 617                 try:
 618                     fr = m.frames[x]
 619                 except IndexError:
 620                     sys.stderr.write ("Skipping nonexistent frame %d\n" % x)
 621                     laystr = laystr + "%% non existent frame %d (skipped)\n" % x
 622                 if fr:
 623                     first_frame = fr
 624                     if gap <> (0,1):
 625                         laystr = laystr +'} %s {\n ' % rational_to_lily_skip (gap)
 626                         gap = (0,1)
 627                     laystr = laystr + fr.dump ()
 628                 else:
 629                     if m.global_measure :
 630                         gap = rat_add (gap, m.global_measure.length ())
 631                     else:
 632                         sys.stderr.write ( \
 633                             "No global measure for staff %d measure %d\n"
 634                             % (self.number, m.number))
 635             if first_frame:
 636                 l = self.layerid (x)
 637                 laystr = '%s = { {  %s } }\n\n' % (l, laystr)
 638                 str = str  + laystr
 639                 layerids.append (l)
 640
 641         str = str +  self.dump_time_key_sigs ()
 642         stafdef = '\\%sglobal' % self.staffid ()
 643         for i in layerids:
 644             stafdef = stafdef + ' \\' + i
 645
 646
 647         str = str + '%s = \\context Staff = %s <<\n %s\n >>\n' % \
 648            (self.staffid (), self.staffid (), stafdef)
 649         return str
 650
 651
 652
 653 def ziplist (l):
 654     if len (l) < 2:
 655         return []
 656     else:
 657         return [(l[0], l[1])] + ziplist (l[2:])
 658
 659
 660 class Chord:
 661     def __init__ (self, number, contents):
 662         self.pitches = []
 663         self.frame = None
 664         self.finale = contents[:7]
 665
 666         self.notelist = ziplist (contents[7:])
 667         self.duration  = None
 668         self.next = None
 669         self.prev = None
 670         self.number = number
 671         self.note_prefix= ''
 672         self.note_suffix = ''
 673         self.chord_suffix = ''
 674         self.chord_prefix = ''
 675         self.tuplet = None
 676         self.grace = 0
 677
 678     def measure (self):
 679         if not self.frame:
 680             return None
 681         return self.frame.measure
 682
 683     def length (self):
 684         if self.grace:
 685             return (0,1)
 686
 687         l = (1, self.duration[0])
 688
 689         d = 1 << self.duration[1]
 690
 691         dotfact = rat_subtract ((2,1), (1,d))
 692         mylen =  rat_multiply (dotfact, l)
 693
 694         if self.tuplet:
 695             mylen = rat_multiply (mylen, self.tuplet.factor())
 696         return mylen
 697
 698
 699     def EDU_duration (self):
 700         return self.finale[2]
 701     def set_duration (self):
 702         self.duration = EDU_to_duration(self.EDU_duration ())
 703
 704     def calculate (self):
 705         self.find_realpitch ()
 706         self.set_duration ()
 707
 708         flag = self.finale[4]
 709         if Chord.GRACE_MASK & flag:
 710             self.grace = 1
 711
 712
 713     def find_realpitch (self):
 714
 715         meas = self.measure ()
 716         tiestart = 0
 717         if not meas or not meas.global_measure  :
 718             sys.stderr.write ('note %d not in measure\n' % self.number)
 719         elif not meas.global_measure.scale:
 720             sys.stderr.write ('note %d: no scale in this measure.' % self.number)
 721         else:
 722
 723             for p in self.notelist:
 724                 (pitch, flag) = p
 725
 726
 727                 nib1 = pitch & 0x0f
 728
 729                 if nib1 > 8:
 730                     nib1 = -(nib1 - 8)
 731                 rest = pitch / 16
 732
 733                 scale =  meas.global_measure.scale
 734                 (sn, sa) =scale[rest % 7]
 735                 sn = sn + (rest - (rest%7)) + 7
 736                 acc = sa + nib1
 737                 self.pitches.append ((sn, acc))
 738                 tiestart =  tiestart or (flag & Chord.TIE_START_MASK)
 739         if tiestart :
 740             self.chord_suffix = self.chord_suffix + ' ~ '
 741
 742     REST_MASK = 0x40000000L
 743     TIE_START_MASK = 0x40000000L
 744     GRACE_MASK = 0x00800000L
 745
 746     def ly_string (self):
 747         s = ''
 748
 749         rest = ''
 750
 751
 752         if not (self.finale[4] & Chord.REST_MASK):
 753             rest = 'r'
 754
 755         for p in self.pitches:
 756             (n,a) =  p
 757             o = n/ 7
 758             n = n % 7
 759
 760             nn = lily_notename ((n,a))
 761
 762             if o < 0:
 763                 nn = nn + (',' * -o)
 764             elif o > 0:
 765                 nn = nn + ('\'' * o)
 766
 767             if s:
 768                 s = s + ' '
 769
 770             if rest:
 771                 nn = rest
 772
 773             s = s + nn
 774
 775         if not self.pitches:
 776             s  = 'r'
 777         if len (self.pitches) > 1:
 778             s = '<%s>' % s
 779
 780         s = s + '%d%s' % (self.duration[0], '.'* self.duration[1])
 781         s = self.note_prefix + s + self.note_suffix
 782
 783         s = self.chord_prefix + s + self.chord_suffix
 784
 785         return s
 786
 787
 788 def fill_list_to (list, no):
 789     """
 790 Add None to LIST until it contains entry number NO.
 791     """
 792     while len (list) <= no:
 793         list.extend ([None] * (no - len(list) + 1))
 794     return list
 795
 796 def read_finale_value (str):
 797     """
 798 Pry off one value from STR. The value may be $hex, decimal, or "string".
 799 Return: (value, rest-of-STR)
 800     """
 801     while str and str[0] in ' \t\n':
 802         str = str[1:]
 803
 804     if not str:
 805         return (None,str)
 806
 807     if str[0] == '$':
 808         str = str [1:]
 809
 810         hex = ''
 811         while str and str[0] in '0123456789ABCDEF':
 812             hex = hex  + str[0]
 813             str = str[1:]
 814
 815
 816         return (long (hex, 16), str)
 817     elif str[0] == '"':
 818         str = str[1:]
 819         s = ''
 820         while str and str[0] <> '"':
 821             s = s + str[0]
 822             str = str[1:]
 823
 824         return (s,str)
 825     elif str[0] in '-0123456789':
 826         dec = ''
 827         while str and str[0] in '-0123456789':
 828             dec = dec  + str[0]
 829             str = str[1:]
 830
 831         return (int (dec), str)
 832     else:
 833         sys.stderr.write ("cannot convert `%s'\n" % str)
 834         return (None, str)
 835
 836
 837
 838
 839 def parse_etf_file (fn, tag_dict):
 840
 841     """ Read FN, putting ETF info into
 842     a giant dictionary.  The keys of TAG_DICT indicate which tags
 843     to put into the dict.
 844     """
 845
 846     sys.stderr.write ('parsing ... ' )
 847     f = open (fn)
 848
 849     gulp = re.sub ('[\n\r]+', '\n',  f.read ())
 850     ls = gulp.split ('\n^')
 851
 852     etf_file_dict = {}
 853     for k in tag_dict:
 854         etf_file_dict[k] = {}
 855
 856     last_tag = None
 857     last_numbers = None
 858
 859
 860     for l in  ls:
 861         m = re.match ('^([a-zA-Z0-9&]+)\(([^)]+)\)', l)
 862         if m and tag_dict.has_key (m.group (1)):
 863             tag = m.group (1)
 864
 865             indices = tuple ([int (s) for s in m.group (2).split (',')])
 866             content = l[m.end (2)+1:]
 867
 868
 869             tdict = etf_file_dict[tag]
 870             if not tdict.has_key (indices):
 871                 tdict[indices] = []
 872
 873
 874             parsed = []
 875
 876             if tag == 'verse' or tag == 'block':
 877                 m2 = re.match ('(.*)\^end', content)
 878                 if m2:
 879                     parsed = [m2.group (1)]
 880             else:
 881                 while content:
 882                     (v, content) = read_finale_value (content)
 883                     if v <> None:
 884                         parsed.append (v)
 885
 886             tdict [indices].extend (parsed)
 887
 888             last_indices = indices
 889             last_tag = tag
 890
 891             continue
 892
 893 # let's not do this: this really confuses when eE happens to be before  a ^text.
 894 #                if last_tag and last_indices:
 895 #                        etf_file_dict[last_tag][last_indices].append (l)
 896
 897     sys.stderr.write ('\n')
 898     return etf_file_dict
 899
 900
 901
 902
 903
 904 class Etf_file:
 905     def __init__ (self, name):
 906         self.measures = [None]
 907         self.chords = [None]
 908         self.frames = [None]
 909         self.tuplets = [None]
 910         self.staffs = [None]
 911         self.slurs = [None]
 912         self.articulations = [None]
 913         self.syllables = [None]
 914         self.verses = [None]
 915         self.articulation_defs = [None]
 916
 917         ## do it
 918         self.parse (name)
 919
 920     def get_global_measure (self, no):
 921         fill_list_to (self.measures, no)
 922         if self.measures[no] == None:
 923             self.measures [no] = Global_measure (no)
 924
 925         return self.measures[no]
 926
 927
 928     def get_staff(self,staffno):
 929         fill_list_to (self.staffs, staffno)
 930         if self.staffs[staffno] == None:
 931             self.staffs[staffno] = Staff (staffno)
 932
 933         return self.staffs[staffno]
 934
 935     # staff-spec
 936     def try_IS (self, indices, contents):
 937         pass
 938
 939     def try_BC (self, indices, contents):
 940         bn = indices[0]
 941         where = contents[0] / 1024.0
 942     def try_TP(self,  indices, contents):
 943         (nil, num) = indices
 944
 945         if self.tuplets[-1] == None or num <> self.tuplets[-1].start_note:
 946             self.tuplets.append (Tuplet (num))
 947
 948         self.tuplets[-1].append_finale (contents)
 949
 950     def try_IM (self, indices, contents):
 951         (a,b) = indices
 952         fin = contents
 953         self.articulations.append (Articulation (a,b,fin))
 954     def try_verse (self, indices, contents):
 955         a = indices[0]
 956         body = contents[0]
 957
 958         body = re.sub (r"""\^[a-z]+\([^)]+\)""", "", body)
 959         body = re.sub ("\^[a-z]+", "", body)
 960         self.verses.append (Verse (a, body))
 961     def try_ve (self,indices, contents):
 962         (a,b) = indices
 963         self.syllables.append (Syllable (a,b,contents))
 964
 965     def try_eE (self,indices, contents):
 966         no = indices[0]
 967         (prev, next, dur, pos, entryflag, extended, follow) = contents[:7]
 968
 969         fill_list_to (self.chords, no)
 970         self.chords[no]  =Chord (no, contents)
 971
 972     def try_Sx(self,indices, contents):
 973         slurno = indices[0]
 974         fill_list_to (self.slurs, slurno)
 975         self.slurs[slurno] = Slur(slurno, contents)
 976
 977     def try_IX (self, indices, contents):
 978         n = indices[0]
 979         a = contents[0]
 980         b = contents[1]
 981
 982         ix= None
 983         try:
 984             ix = self.articulation_defs[n]
 985         except IndexError:
 986             ix = Articulation_def (n,a,b)
 987             self.articulation_defs.append (Articulation_def (n, a, b))
 988
 989     def try_GF(self, indices, contents):
 990         (staffno,measno) = indices
 991
 992         st = self.get_staff (staffno)
 993         meas = st.get_measure (measno)
 994         meas.finale = contents
 995
 996     def try_FR(self, indices, contents):
 997         frameno = indices [0]
 998
 999         startnote = contents[0]
1000         endnote = contents[1]
1001
1002         fill_list_to (self.frames, frameno)
1003
1004         self.frames[frameno] = Frame ((frameno, startnote, endnote))
1005
1006     def try_MS (self, indices, contents):
1007         measno = indices[0]
1008         keynum = contents[1]
1009         meas =self. get_global_measure (measno)
1010
1011         meas.set_key_sig (keynum)
1012
1013         beats = contents[2]
1014         beatlen = contents[3]
1015         meas.set_timesig ((beats, beatlen))
1016
1017         meas_flag1 = contents[4]
1018         meas_flag2 = contents[5]
1019
1020         meas.set_flags (meas_flag1, meas_flag2);
1021
1022
1023     routine_dict = {
1024         'MS': try_MS,
1025         'FR': try_FR,
1026         'GF': try_GF,
1027         'IX': try_IX,
1028         'Sx' : try_Sx,
1029         'eE' : try_eE,
1030         'verse' : try_verse,
1031         've' : try_ve,
1032         'IM' : try_IM,
1033         'TP' : try_TP,
1034         'BC' : try_BC,
1035         'IS' : try_IS,
1036         }
1037
1038     def parse (self, etf_dict):
1039         sys.stderr.write ('reconstructing ...')
1040         sys.stderr.flush ()
1041
1042         for (tag,routine) in Etf_file.routine_dict.items ():
1043             ks = etf_dict[tag].keys ()
1044             ks.sort ()
1045             for k in ks:
1046                 routine (self, k, etf_dict[tag][k])
1047
1048         sys.stderr.write ('processing ...')
1049         sys.stderr.flush ()
1050
1051         self.unthread_entries ()
1052
1053         for st in self.staffs[1:]:
1054             if not st:
1055                 continue
1056             mno = 1
1057             for m in st.measures[1:]:
1058                 if not m:
1059                     continue
1060
1061                 m.calculate()
1062                 try:
1063                     m.global_measure = self.measures[mno]
1064                 except IndexError:
1065                     sys.stderr.write ("Non-existent global measure %d" % mno)
1066                     continue
1067
1068                 frame_obj_list = [None]
1069                 for frno in m.frames:
1070                     try:
1071                         fr = self.frames[frno]
1072                         frame_obj_list.append (fr)
1073                     except IndexError:
1074                         sys.stderr.write ("\nNon-existent frame %d"  % frno)
1075
1076                 m.frames = frame_obj_list
1077                 for fr in frame_obj_list[1:]:
1078                     if not fr:
1079                         continue
1080
1081                     fr.set_measure (m)
1082
1083                     fr.chords = self.get_thread (fr.start, fr.end)
1084                     for c in fr.chords:
1085                         c.frame = fr
1086                 mno = mno + 1
1087
1088         for c in self.chords[1:]:
1089             if c:
1090                 c.calculate()
1091
1092         for f in self.frames[1:]:
1093             if f:
1094                 f.calculate ()
1095
1096         for t in self.tuplets[1:]:
1097             t.calculate (self.chords)
1098
1099         for s in self.slurs[1:]:
1100             if s:
1101                 s.calculate (self.chords)
1102
1103         for s in self.articulations[1:]:
1104             s.calculate (self.chords, self.articulation_defs)
1105
1106     def get_thread (self, startno, endno):
1107
1108         thread = []
1109
1110         c = None
1111         try:
1112             c = self.chords[startno]
1113         except IndexError:
1114             sys.stderr.write ("Huh? Frame has invalid bounds (%d,%d)\n" % (startno, endno))
1115             return []
1116
1117
1118         while c and c.number <> endno:
1119             thread.append (c)
1120             c = c.next
1121
1122         if c:
1123             thread.append (c)
1124
1125         return thread
1126
1127     def dump (self):
1128         str = ''
1129         staffs = []
1130         for s in self.staffs[1:]:
1131             if s:
1132                 str = str + '\n\n' + s.dump ()
1133                 staffs.append ('\\' + s.staffid ())
1134
1135
1136         # should use \addlyrics ?
1137
1138         for v in self.verses[1:]:
1139             str = str + v.dump()
1140
1141         if len (self.verses) > 1:
1142             sys.stderr.write ("\nLyrics found; edit to use \\addlyrics to couple to a staff\n")
1143
1144         if staffs:
1145             str += '\\version "2.3.25"\n'
1146             str = str + '<<\n  %s\n>> } ' % ' '.join (staffs)
1147
1148         return str
1149
1150
1151     def __str__ (self):
1152         return 'ETF FILE %s %s' % (self.measures,  self.entries)
1153
1154     def unthread_entries (self):
1155         for e in self.chords[1:]:
1156             if not e:
1157                 continue
1158
1159             e.prev = self.chords[e.finale[0]]
1160             e.next = self.chords[e.finale[1]]
1161
1162 def identify():
1163     sys.stderr.write ("%s from LilyPond %s\n" % (program_name, version))
1164
1165 def warranty ():
1166     identify ()
1167     sys.stdout.write ('''
1168 %s
1169
1170   %s
1171
1172 %s
1173 %s
1174 ''' % ( _ ('Copyright (c) %s by') % '2001--2009',
1175         '\n  '.join (authors),
1176         _ ('Distributed under terms of the GNU General Public License.'),
1177         _ ('It comes with NO WARRANTY.')))
1178
1179 def get_option_parser ():
1180     p = ly.get_option_parser (usage=_ ("%s [OPTION]... ETF-FILE") % 'etf2ly',
1181                  description=_ ("""Enigma Transport Format is a format used by Coda Music Technology's
1182 Finale product.  etf2ly converts a subset of ETF to a ready-to-use LilyPond file.
1183 """),
1184                  add_help_option=False)
1185     p.add_option("-h", "--help",
1186                  action="help",
1187                  help=_ ("show this help and exit"))
1188     p.version = "etf2ly (LilyPond) @TOPLEVEL_VERSION@"
1189     p.add_option("--version",
1190                  action="version",
1191                  help=_ ("show version number and exit"))
1192     p.add_option ('-o', '--output', help=_ ("write output to FILE"),
1193            metavar=_("FILE"),
1194            action='store')
1195     p.add_option ('-w', '--warranty', help=_ ("show warranty and copyright"),
1196            action='store_true',
1197            ),
1198
1199     p.add_option_group ('',
1200                         description=(
1201             _ ('Report bugs via %s')
1202             % 'http://post.gmane.org/post.php'
1203             '?group=gmane.comp.gnu.lilypond.bugs') + '\n')
1204     return p
1205
1206 def do_options ():
1207     opt_parser = get_option_parser()
1208     (options,args) = opt_parser.parse_args ()
1209     if options.warranty:
1210         warranty ()
1211         sys.exit (0)
1212
1213     return (options,args)
1214
1215 (options, files) = do_options()
1216 identify()
1217
1218 out_filename = options.output
1219
1220 e = None
1221 for f in files:
1222     if f == '-':
1223         f = ''
1224
1225     sys.stderr.write ('Processing `%s\'\n' % f)
1226
1227     dict = parse_etf_file (f, Etf_file.routine_dict)
1228     e = Etf_file(dict)
1229     if not out_filename:
1230         out_filename = os.path.basename (re.sub ('(?i).etf$', '.ly', f))
1231
1232     if out_filename == f:
1233         out_filename = os.path.basename (f + '.ly')
1234
1235     sys.stderr.write ('Writing `%s\'' % out_filename)
1236     ly = e.dump()
1237
1238     fo = open (out_filename, 'w')
1239     fo.write ('%% lily was here -- automatically converted by etf2ly from %s\n' % f)
1240     fo.write(ly)
1241     fo.close ()
1242