scripts/pmx2ly.py

   1 #!@PYTHON@
   2
   3 # PMX is a Musixtex preprocessor written by Don Simons, see
   4 # http://www.gmd.de/Misc/Music/musixtex/software/pmx/
   5
   6 # TODO:
   7 #  * block openings aren't parsed.
   8
   9 import os
  10 import string
  11 import sys
  12 import re
  13 import getopt
  14
  15 program_name = 'pmx2ly'
  16 version = '@TOPLEVEL_VERSION@'
  17 if version == '@' + 'TOPLEVEL_VERSION' + '@':
  18         version = '(unknown version)'      # uGUHGUHGHGUGH
  19
  20
  21 def encodeint (i):
  22         return chr ( i  + ord ('A'))
  23
  24
  25 actab = {-2: 'eses', -1: 'es', 0 : '', 1: 'is', 2:'isis'}
  26
  27 def pitch_to_lily_string (tup):
  28         (o,n,a) = tup
  29
  30         nm = chr((n + 2) % 7 + ord ('a'))
  31         nm = nm + actab[a]
  32         if o > 0:
  33                 nm = nm + "'" * o
  34         elif o < 0:
  35                 nm = nm + "," * -o
  36         return nm
  37
  38 def gcd (a,b):
  39         if b == 0:
  40                 return a
  41         c = a
  42         while c:
  43                 c = a % b
  44                 a = b
  45                 b = c
  46         return a
  47
  48 def rat_simplify (r):
  49         (n,d) = r
  50         if d < 0:
  51                 d = -d
  52                 n = -n
  53         if n == 0:
  54                 return (0,1)
  55         else:
  56                 g = gcd (n, d)
  57                 return (n/g, d/g)
  58
  59 def rat_multiply (a,b):
  60         (x,y) = a
  61         (p,q) = b
  62
  63         return rat_simplify ((x*p, y*q))
  64
  65 def rat_divide (a,b):
  66         (p,q) = b
  67         return rat_multiply (a, (q,p))
  68
  69 tuplet_table = {
  70         2: 3,
  71         3: 2,
  72         5: 4
  73 }
  74
  75
  76 def rat_add (a,b):
  77         (x,y) = a
  78         (p,q) = b
  79
  80         return rat_simplify ((x*q + p*y, y*q))
  81
  82 def rat_neg (a):
  83         (p,q) = a
  84         return (-p,q)
  85
  86
  87 def rat_larger (a,b):
  88         return rat_subtract (a, b )[0] > 0
  89
  90 def rat_subtract (a,b ):
  91         return rat_add (a, rat_neg (b))
  92
  93 def rat_to_duration (frac):
  94         log = 1
  95         d = (1,1)
  96         while rat_larger (d, frac):
  97                 d = rat_multiply (d, (1,2))
  98                 log = log << 1
  99
 100         frac = rat_subtract (frac, d)
 101         dots = 0
 102         if frac == rat_multiply (d, (1,2)):
 103                 dots = 1
 104         elif frac == rat_multiply (d, (3,4)):
 105                 dots = 2
 106         return (log, dots)
 107
 108
 109 class Barcheck :
 110         def __init__ (self):
 111                 pass
 112         def dump (self):
 113                 return '|\n'
 114
 115
 116 class Meter :
 117         def __init__ (self,nums):
 118                 self.nums = nums
 119         def dump (self):
 120                 return ' %{ FIXME: meter change %} '
 121
 122 class Beam:
 123         def __init__ (self, ch):
 124                 self.char = ch
 125         def dump (self):
 126                 return self.char
 127
 128 class Slur:
 129         def __init__ (self,id):
 130                 self.id = id
 131                 self.start_chord = None
 132                 self.end_chord = None
 133         def calculate (self):
 134                 s =self.start_chord
 135                 e= self.end_chord
 136
 137                 if e and s:
 138                         s.note_suffix = s.note_suffix + '('
 139                         e.note_prefix = ')' + e.note_prefix
 140                 else:
 141                         sys.stderr.write ("\nOrphaned slur")
 142
 143 class Voice:
 144         def __init__ (self):
 145                 self.entries = []
 146                 self.chords = []
 147                 self.staff = None
 148                 self.current_slurs = []
 149                 self.slurs = []
 150         def toggle_slur (self, id):
 151
 152                 for s in self.current_slurs:
 153                         if s.id == id:
 154                                 self.current_slurs.remove (s)
 155                                 s.end_chord = self.chords[-1]
 156                                 return
 157                 s = Slur (id)
 158                 s.start_chord = self.chords[-1]
 159                 self.current_slurs.append (s)
 160                 self.slurs.append (s)
 161
 162         def last_chord (self):
 163                 return self.chords[-1]
 164         def add_chord (self, ch):
 165                 self.chords.append (ch)
 166                 self.entries.append (ch)
 167         def add_nonchord (self, nch):
 168                 self.entries.append (nch)
 169
 170         def idstring (self):
 171                 return 'staff%svoice%s ' % (encodeint (self.staff.number) , encodeint(self.number))
 172         def dump (self):
 173                 str = ''
 174                 ln = ''
 175                 for e in self.entries:
 176                         next = ' ' + e.dump ()
 177                         if next[-1] == '\n':
 178                                 str  = str + ln + next
 179                                 ln = ''
 180                                 continue
 181
 182                         if len (ln) +len (next) > 72:
 183                                 str = str+ ln + '\n'
 184                                 ln = ''
 185                         ln = ln + next
 186
 187
 188                 str = str  + ln
 189                 id = self.idstring ()
 190
 191                 str = '%s =  \\notes { \n %s }\n '% (id, str)
 192                 return str
 193         def calculate_graces (self):
 194                 lastgr = 0
 195                 lastc = None
 196                 for c in self.chords:
 197                         if c.grace and  not lastgr:
 198                                 c.chord_prefix = c.chord_prefix + '\\grace { '
 199                         elif not c.grace and lastgr:
 200                                 lastc.chord_suffix = lastc.chord_suffix + ' } '
 201                         lastgr = c.grace
 202                         lastc = c
 203         def calculate (self):
 204                 self.calculate_graces ()
 205                 for s in self.slurs:
 206                         s.calculate ()
 207
 208 class Clef:
 209         def __init__ (self, cl):
 210                 self.type = cl
 211         def dump(self):
 212                 return '\\clef %s' % self.type
 213
 214 class Key:
 215         def __init__ (self, key):
 216                 self.type = key
 217         def dump(self):
 218                 return '\\key %s' % self.type
 219
 220 clef_table = {
 221         'b':'bass'  ,
 222         'r':'baritone',
 223         'n':'tenor',
 224         'a':'alto',
 225         'm':'mezzosoprano',
 226         's':'soprano',
 227         't':'treble',
 228         'f':'frenchviolin',
 229         }
 230 key_table = {
 231         '+0':'c \major',
 232         '+1':'g \major',
 233         '+2':'d \major',
 234         '+3':'a \major',
 235         '+4':'e \major',
 236         '+5':'b \major',
 237         '+6':'fis \major',
 238         '-1':'f \major',
 239         '-2':'bes \major',
 240         '-3':'ees \major',
 241         '-4':'aes \major',
 242         '-5':'des \major',
 243         '-6':'ges \major'
 244         }
 245 class Staff:
 246         def __init__ (self):
 247                 self.voices = (Voice (), Voice())
 248                 self.clef = None
 249                 self.instrument = 0
 250                 self.voice_idx = 0
 251                 self.number = None
 252                 self.key = 0
 253
 254                 i = 0
 255                 for v  in self.voices:
 256                         v.staff = self
 257                         v.number = i
 258                         i = i+1
 259         def set_clef (self, letter):
 260                 clstr = clef_table[letter]
 261                 self.voices[0].add_nonchord (Clef (clstr))
 262
 263
 264         def current_voice (self):
 265                 return self.voices[self.voice_idx]
 266         def next_voice (self):
 267                 self.voice_idx = (self.voice_idx + 1)%len (self.voices)
 268
 269         def calculate (self):
 270                 for v in self.voices:
 271                         v.calculate ()
 272         def idstring (self):
 273                 return 'staff%s' % encodeint (self.number)
 274         def dump (self):
 275                 str = ''
 276
 277                 refs = ''
 278                 for v in self.voices:
 279                         str = str + v.dump()
 280                         refs = refs + '\\' + v.idstring ()+  ' '
 281
 282                 str = str + '\n\n%s = \\context Staff = %s \n  < \n %s >\n\n\n'% (self.idstring (), self.idstring (), refs)
 283                 return str
 284
 285 class Tuplet:
 286         def __init__ (self, number, base, dots):
 287                 self.chords = []
 288                 self.number = number
 289                 self.replaces = tuplet_table[number]
 290                 self.base = base
 291                 self.dots = dots
 292
 293                 length = (1,base)
 294                 if dots == 1:
 295                         length = rat_multiply (length, (3,2))
 296                 elif dots == 2:
 297                         length = rat_multiply (length, (7,4))
 298
 299                 length = rat_multiply (length, (1,self.replaces))
 300
 301                 (nb,nd) =rat_to_duration (length)
 302
 303                 self.note_base = nb
 304                 self.note_dots = nd
 305
 306         def add_chord (self, ch):
 307                 ch.dots = self.note_dots
 308                 ch.basic_duration = self.note_base
 309                 self.chords.append (ch)
 310
 311                 if len (self.chords) == 1:
 312                         ch.chord_prefix = '\\times %d/%d { ' % (self.replaces, self.number)
 313                 elif len (self.chords) == self.number:
 314                         ch.chord_suffix = ' }'
 315
 316 class Chord:
 317         def __init__ (self):
 318                 self.pitches = []
 319                 self.dots = 0
 320                 self.basic_duration = 0
 321                 self.scripts = []
 322                 self.grace = 0
 323                 self.chord_prefix = ''
 324                 self.chord_suffix = ''
 325                 self.note_prefix = ''
 326                 self.note_suffix = ''
 327
 328         def dump (self):
 329                 str = ''
 330
 331                 sd = ''
 332                 if self.basic_duration == 0.5:
 333                         sd = '\\breve'
 334                 else:
 335                         sd = '%d' % self.basic_duration
 336                 sd = sd + '.' * self.dots
 337                 for p in self.pitches:
 338                         if str:
 339                                 str = str + ' '
 340                         str = str + pitch_to_lily_string (p) + sd
 341
 342                 for s in self.scripts:
 343                         str = str + '-' + s
 344
 345                 str = self.note_prefix +str  + self.note_suffix
 346
 347                 if len (self.pitches) > 1:
 348                         str = '<%s>' % str
 349                 elif len (self.pitches) == 0:
 350                         str = 'r' + sd
 351
 352                 str = self.chord_prefix + str + self.chord_suffix
 353
 354                 return str
 355
 356 SPACE=' \t\n'
 357 DIGITS ='0123456789'
 358 basicdur_table = {
 359         9: 0.5,
 360         0: 0 ,
 361         2: 2 ,
 362         4: 4 ,
 363         8: 8 ,
 364         1: 16,
 365         3: 32,
 366         6: 64
 367         }
 368
 369
 370 ornament_table = {
 371         't': '\\prall',
 372         'm': '\\mordent',
 373         'x': '"x"',
 374         '+': '+',
 375         'u': '"pizz"',
 376         'p': '|',
 377         '(': '"paren"',
 378         ')': '"paren"',
 379         'g': '"segno"',
 380         '.': '.',
 381         'fd': '\\fermata',
 382         'f': '\\fermata',
 383         '_': '-',
 384         'T': '\\trill',
 385         '>': '>',
 386         '^': '^',
 387         }
 388
 389 class Parser:
 390         def __init__ (self, filename):
 391                 self.staffs = []
 392                 self.forced_duration = None
 393                 self.last_name = 0
 394                 self.last_oct = 0
 395                 self.tuplets_expected = 0
 396                 self.tuplets = []
 397                 self.last_basic_duration = 4
 398
 399                 self.parse (filename)
 400
 401         def set_staffs (self, number):
 402                 self.staffs = map (lambda x: Staff (), range(0, number))
 403
 404                 self.staff_idx = 0
 405
 406                 i =0
 407                 for s in self.staffs:
 408                         s.number = i
 409                         i = i+1
 410         def current_staff (self):
 411                 return self.staffs[self.staff_idx]
 412
 413         def current_voice (self):
 414                 return self.current_staff ().current_voice ()
 415
 416         def next_staff (self):
 417                 self.staff_idx = (self.staff_idx + 1)% len (self.staffs)
 418
 419         def parse_note (self, str):
 420                 name = None
 421                 ch = None
 422
 423                 grace = 0
 424                 if str[0] == 'G':
 425                         grace = 1
 426                         str = str[1:]
 427
 428                 if str[0] == 'z':
 429                         ch = self.current_voice().last_chord()
 430                         str = str[1:]
 431                 else:
 432                         ch = Chord ()
 433                         self.current_voice().add_chord (ch)
 434
 435                 # what about 's'?
 436                 if str[0] <> 'r':
 437                         name = (ord (str[0]) - ord('a') + 5) % 7
 438
 439                 str = str[1:]
 440
 441                 ch.grace = ch.grace or grace
 442
 443                 forced_duration  = 0
 444                 alteration = 0
 445                 dots = 0
 446                 oct = None
 447                 durdigit = None
 448                 multibar = 0
 449                 tupnumber = 0
 450                 extra_oct = 0
 451                 while str[0] in 'dsfmnul0123456789.,+-':
 452                         c = str[0]
 453                         str = str[1:]
 454                         if c == 'f':
 455                                 alteration = alteration -1
 456                         elif c == 'n':
 457                                 alteration = 0
 458                         elif c == 'm':
 459                                 multibar = 1
 460                         elif c == 's':
 461                                 alteration = alteration +1
 462                         elif c == 'd':
 463                                 dots = dots + 1
 464                         elif c in DIGITS and durdigit == None and \
 465                              self.tuplets_expected == 0:
 466                                 durdigit = string.atoi (c)
 467                         elif c in DIGITS:
 468                                 oct = string.atoi (c) - 3
 469                         elif c == '+':
 470                                 extra_oct = extra_oct + 1
 471                         elif c == '-':
 472                                 extra_oct = extra_oct - 1
 473                         elif c == '.':
 474                                 dots = dots+ 1
 475                                 forced_duration = 2
 476                         elif c == ',':
 477                                 forced_duration = 2
 478
 479                 if str[0] == 'x':
 480                         str = str[1:]
 481                         tupnumber = string.atoi (str[0])
 482                         str = str[1:]
 483                         str=re.sub (r'^n?f?[+-0-9.]+', '' , str)
 484
 485
 486                 if durdigit:
 487                         try:
 488                                 basic_duration =  basicdur_table[durdigit]
 489                                 self.last_basic_duration = basic_duration
 490                         except KeyError:
 491                                 sys.stderr.write ("""
 492 Huh? expected duration, found %d Left was `%s'""" % (durdigit, str[:20]))
 493
 494                                 basic_duration = 4
 495                 else:
 496                         basic_duration = self.last_basic_duration
 497
 498
 499
 500                 if name <> None and oct == None:
 501                         e = 0
 502                         if self.last_name < name and name -self.last_name > 3:
 503                                 e = -1
 504                         elif self.last_name > name and self.last_name -name > 3:
 505                                 e = 1
 506
 507                         oct = self.last_oct  +e + extra_oct
 508
 509                 if name <> None:
 510                         self.last_oct = oct
 511                         self.last_name = name
 512
 513                 if name <> None:
 514                         ch.pitches.append ((oct, name,  alteration))
 515
 516                 # do before adding to tuplet.
 517                 ch.basic_duration = basic_duration
 518                 ch.dots = dots
 519
 520                 if forced_duration:
 521                         self.forced_duration = ch.basic_duration / forced_duration
 522
 523                 if tupnumber:
 524                         tup =Tuplet (tupnumber, basic_duration, dots)
 525                         self.tuplets_expected = tupnumber
 526                         self.tuplets.append (tup)
 527
 528                 if self.tuplets_expected > 0:
 529                         self.tuplets[-1].add_chord (ch)
 530                         self.tuplets_expected = self.tuplets_expected - 1
 531
 532                 return str
 533         def parse_basso_continuo (self, str):
 534                 while str[0] in DIGITS +'#n-':
 535                         scr = str[0]
 536
 537                         if scr == '#':
 538                                 scr = '\\\\textsharp'
 539
 540                         if len(scr)>1 or scr not in DIGITS:
 541                                 scr = '"%s"' % scr
 542
 543                         self.current_voice().last_chord ().scripts.append (scr)
 544                         str=str[1:]
 545                 return str
 546         def parse_beams (self,str):
 547                 c = str[0]
 548         #       self.current_voice().add_nonchord (Beam(c))
 549                 if str[0] == '[':
 550                         str = str[1:]
 551                         while str[0] in '+-0123456789':
 552                                 str=str[1:]
 553                 else:
 554                         str = str[1:]
 555
 556                 return str
 557
 558         def parse_key (self, str):
 559                 key = ""
 560                 #The key is changed by a string of the form K[+-]<num>[+-]<num>
 561                 #where the first number is the transposition and the second number is the
 562                 #new key signature.  For now, we won't bother with the transposition.
 563                 if str[2] != '0':
 564                         sys.stderr.write("Transposition not implemented yet: ")
 565                         while str[0] in '+-0123456789':
 566                                 str = str[1:]
 567                 else:
 568                         str=str[3:]
 569                         key = ''
 570                         while str[0] in '+-0123456789':
 571                                 key=key + str[0]
 572                                 str=str[1:]
 573                         keystr = key_table[key]
 574                         self.current_voice().add_nonchord (Key(keystr))
 575                 return(str)
 576
 577
 578         def parse_header  (self, ls):
 579                 def atonum(a):
 580                         if re.search('\\.', a):
 581                                 return string.atof (a)
 582                         else:
 583                                 return string.atoi (a)
 584
 585                 number_count = 12
 586                 numbers = []
 587
 588                 while len (numbers) < number_count:
 589                         opening = ls[0]
 590                         ls = ls[1:]
 591
 592                         opening = re.sub ('[ \t\n]+', ' ', opening)
 593                         opening = re.sub ('^ ', '', opening)
 594                         opening = re.sub (' $', '', opening)
 595                         if opening == '':
 596                                 continue
 597                         opening = string.split (opening, ' ')
 598
 599                         numbers = numbers + map (atonum, opening)
 600
 601                 (no_staffs, no_instruments, timesig_num, timesig_den, ptimesig_num,
 602                  ptimesig_den, pickup_beats,keysig_number) = tuple (numbers[0:8])
 603                 (no_pages,no_systems, musicsize, fracindent) = tuple (numbers[8:])
 604
 605                 # ignore this.
 606                 # opening = map (string.atoi, re.split ('[\t ]+', opening))
 607
 608                 instruments = []
 609                 while len (instruments) < no_instruments:
 610                         instruments.append (ls[0])
 611                         ls = ls[1:]
 612
 613                 l = ls[0]
 614                 ls = ls[1:]
 615
 616                 self.set_staffs (no_staffs)
 617
 618                 for s in self.staffs:
 619                         s.set_clef(l[0])
 620                         l = l[1:]
 621
 622                 # dump path
 623                 ls = ls[1:]
 624
 625                 # dump more ?
 626                 return ls
 627
 628         def parse_ornament (self, left):
 629                 left = left[1:]
 630                 e = self.current_voice ().last_chord ()
 631
 632                 id = left[0]
 633                 left = left[1:]
 634                 if left[0] == 'd':
 635                         id = id +'d'
 636                         left = left [1:]
 637
 638                 orn = '"orn"'
 639                 try:
 640                         orn = ornament_table[id]
 641                 except KeyError:
 642                         sys.stderr.write ("unknown ornament `%s'\n" % id)
 643
 644                 e.scripts.append (orn)
 645                 return left
 646         def parse_barcheck (self, left):
 647                 self.current_voice ().add_nonchord (Barcheck ())
 648
 649                 return left [1:]
 650
 651         def parse_slur (self, left):
 652                 left = left[1:]
 653
 654                 id = None
 655
 656                 if re.match ('[A-Z0-9]', left[0]):
 657                         id = left[0]
 658                         left= left[1:]
 659                 while left[0] in 'uld0123456789+-.':
 660                         left= left[1:]
 661
 662                 self.current_voice ().toggle_slur (id)
 663                 return left
 664
 665         def parse_mumbo_jumbo (self,left):
 666                 left = left[1:]
 667                 while left and  left[0] <> '\\':
 668                         left = left[1:]
 669
 670                 left  = left[1:]
 671                 return left
 672         def parsex (self,left):
 673                 left = left[1:]
 674                 while left[0] in DIGITS:
 675                         left = left[1:]
 676
 677                 return left
 678
 679         def parse_body (self, left):
 680                 preamble = 1
 681
 682                 while left:
 683                         c = left[0]
 684                         if c == '%':
 685                                 f = string.find (left, '\n')
 686                                 if f < 0:
 687                                         left = ''
 688                                 left = left[f+1:]
 689                         elif c == 'm':
 690                                 left = left[1:]
 691                                 m = re.match ('([o0-9]/[o0-9]/[o0-9]/[o0-9])', left)
 692                                 if m:
 693                                         nums = m.group (1)
 694                                         left = left[len (nums):]
 695                                         nums = map (string.atoi , nums)
 696                                         self.current_voice ().add_nonchord (Meter (nums))
 697                                         continue
 698
 699                                 m= re.match ('([0-9o]+)', left)
 700                                 if m:
 701                                         nums = m.group (1)
 702                                         self.current_voice ().add_nonchord (Meter (map (string.atoi (nums))))
 703                                         continue
 704
 705                         elif left[0] in 'lh':
 706                                 f = string.find (left, '\n')
 707                                 if f <0 :
 708                                         left = ''
 709                                 else:
 710                                         left = left[f+1:]
 711
 712                                 f = string.find (left, '\n')
 713                                 title = left[:f]
 714                                 left=left[f+1:]
 715                         elif c in 'Gzabcdefgr':
 716                                 left = self.parse_note (left)
 717                         elif c in DIGITS + 'n#-':
 718                                 left = self.parse_basso_continuo (left)
 719                         elif c in SPACE:
 720                                 left = left[1:]
 721                         elif c == 's':
 722                                 left = self.parse_slur (left)
 723                         elif c == '|':
 724                                 left = self.parse_barcheck (left)
 725                         elif c == 'o':
 726                                 left = self.parse_ornament (left)
 727                         elif c == 'x':
 728                                 left = self.parsex (left)
 729                         elif c == 'C':
 730                                 self.current_staff().set_clef(str(left[1]))
 731                                 left = left[2:]
 732                         elif c == 'K':
 733                                 left = self.parse_key (left)
 734                         elif c in "[]":
 735                                 left = self.parse_beams (left)
 736                         elif left[:2] == "//":
 737                                 self.current_staff().next_voice ()
 738                                 left = left[2:]
 739                         elif c == '/':
 740                                 self.next_staff ()
 741                                 left = left[1:]
 742                         elif c == '\\':
 743                                 left = self.parse_mumbo_jumbo(left)
 744                         elif c == '\r':
 745                                 left = left[1:]
 746                         else:
 747                                 sys.stderr.write ("""
 748 Huh? Unknown directive `%s', before `%s'""" % (c, left[:20] ))
 749                                 left = left[1:]
 750
 751         def dump (self):
 752                 str = ''
 753
 754                 refs = ''
 755                 for s in self.staffs:
 756                         str = str +  s.dump ()
 757                         refs = '\\' + s.idstring() + refs
 758
 759                 str = str + "\n\n\\score { <\n %s\n > }" % refs
 760                 return str
 761
 762
 763         def parse (self,fn):
 764                 ls = open (fn).readlines ()
 765                 def subst(s):
 766                         return re.sub ('%.*$', '', s)
 767                 ls = map (subst, ls)
 768                 ls = self.parse_header (ls)
 769                 left = string.join (ls, ' ')
 770
 771                 print left
 772                 self.parse_body (left)
 773                 for c in self.staffs:
 774                         c.calculate ()
 775
 776
 777
 778
 779
 780 def help ():
 781         sys.stdout.write (
 782 """Usage: pmx2ly [OPTION]... PMX-FILE
 783
 784 Convert PMX to LilyPond.
 785
 786 Options:
 787   -h, --help          this help
 788   -o, --output=FILE   set output filename to FILE
 789   -v, --version       version information
 790
 791 PMX is a Musixtex preprocessor written by Don Simons, see
 792 http://www.gmd.de/Misc/Music/musixtex/software/pmx/
 793
 794 Report bugs to bug-lilypond@gnu.org.
 795
 796 Written by Han-Wen Nienhuys <hanwen@cs.uu.nl>
 797 """)
 798
 799
 800 def print_version ():
 801         sys.stdout.write ("""pmx2ly (GNU LilyPond) %s
 802
 803 This is free software.  It is covered by the GNU General Public License,
 804 and you are welcome to change it and/or distribute copies of it under
 805 certain conditions.  Invoke as `midi2ly --warranty' for more information.
 806
 807 Copyright (c) 2000--2002 by Han-Wen Nienhuys <hanwen@cs.uu.nl>
 808 """ % version)
 809 def identify():
 810         sys.stderr.write ("%s from LilyPond %s\n" % (program_name, version))
 811
 812
 813
 814 (options, files) = getopt.getopt (sys.argv[1:], 'vo:h', ['help','version', 'output='])
 815 out_filename = None
 816 for opt in options:
 817         o = opt[0]
 818         a = opt[1]
 819         if o== '--help' or o == '-h':
 820                 help ()
 821                 sys.exit (0)
 822         if o == '--version' or o == '-v':
 823                 print_version ()
 824                 sys.exit(0)
 825
 826         if o == '--output' or o == '-o':
 827                 out_filename = a
 828         else:
 829                 print o
 830                 raise getopt.error
 831
 832 identify()
 833
 834 for f in files:
 835         if f == '-':
 836                 f = ''
 837
 838         sys.stderr.write ('Processing `%s\'\n' % f)
 839         e = Parser(f)
 840         if not out_filename:
 841                 out_filename = os.path.basename (re.sub ('(?i).pmx$', '.ly', f))
 842
 843         if out_filename == f:
 844                 out_filename = os.path.basename (f + '.ly')
 845
 846         sys.stderr.write ('Writing `%s\'' % out_filename)
 847         ly = e.dump()
 848
 849
 850
 851         fo = open (out_filename, 'w')
 852         fo.write ('%% lily was here -- automatically converted by pmx2ly from %s\n' % f)
 853         fo.write(ly)
 854         fo.close ()
 855
 856