mftrace.py

   1 #!@PYTHON@
   2
   3 #
   4 # this file is part of mftrace - a tool to generate scalable fonts from MF sources
   5 #
   6
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License version 2
   9 # as published by the Free Software Foundation
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU Library General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc.,
  19 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20
  21 # Copyright (c)  2001--2006 by
  22 #  Han-Wen Nienhuys, Jan Nieuwenhuizen
  23
  24 import string
  25 import os
  26 import optparse
  27 import sys
  28 import re
  29 import tempfile
  30 import shutil
  31
  32 prefix = '@prefix@'
  33 bindir = '@bindir@'
  34 datadir = '@datadir@'
  35 localedir = datadir + '/locale'
  36 libdir = '@libdir@'
  37 exec_prefix = '@exec_prefix@'
  38
  39 def interpolate (str):
  40     str = string.replace (str, '{', '(')
  41     str = string.replace (str, '}', ')s')
  42     str = string.replace (str, '$', '%')
  43     return str
  44
  45 if prefix != '@' + 'prefix@':
  46     exec_prefix = interpolate (exec_prefix) % vars ()
  47     bindir = interpolate (bindir) % vars ()
  48     datadir = os.path.join (interpolate (datadir) % vars (), 'mftrace')
  49     libdir = interpolate (libdir) % vars ()
  50
  51 if datadir == '@' + "datadir" + "@":
  52     datadir = os.getcwd ()
  53     bindir =  os.getcwd ()
  54
  55 sys.path.append (datadir)
  56
  57 import afm
  58 import tfm
  59
  60 errorport = sys.stderr
  61
  62 ################################################################
  63 # lilylib.py -- options and stuff
  64 #
  65 # source file of the GNU LilyPond music typesetter
  66
  67 try:
  68     import gettext
  69     gettext.bindtextdomain ('mftrace', localedir)
  70     gettext.textdomain ('mftrace')
  71     _ = gettext.gettext
  72 except:
  73     def _ (s):
  74         return s
  75
  76 def shell_escape_filename (str):
  77     str = re.sub ('([\'" ])', r'\\\1', str)
  78     return str
  79
  80 def identify (port):
  81     port.write ('%s %s\n' % (program_name, program_version))
  82
  83 def warranty ():
  84     identify (sys.stdout)
  85     sys.stdout.write ('\n')
  86     sys.stdout.write (_ ('Copyright (c) %s by' % ' 2001--2004'))
  87     sys.stdout.write ('\n')
  88     sys.stdout.write ('  Han-Wen Nienhuys')
  89     sys.stdout.write ('  Jan Nieuwenhuizen')
  90     sys.stdout.write ('\n')
  91     sys.stdout.write (_ (r'''
  92 Distributed under terms of the GNU General Public License.  It comes with
  93 NO WARRANTY.'''))
  94     sys.stdout.write ('\n')
  95
  96 def progress (s):
  97     errorport.write (s)
  98
  99 def warning (s):
 100     errorport.write (_ ("warning: ") + s)
 101
 102 def error (s):
 103     '''Report the error S.  Exit by raising an exception.  Please
 104     do not abuse by trying to catch this error.  If you do not want
 105     a stack trace, write to the output directly.
 106
 107     RETURN VALUE
 108
 109     None
 110
 111     '''
 112
 113     errorport.write (_ ("error: ") + s + '\n')
 114     raise _ ("Exiting ... ")
 115
 116 temp_dir = None
 117 class TempDirectory:
 118     def __init__ (self, name=None):
 119         import tempfile
 120         if name:
 121             if not os.path.isdir (name):
 122                 os.makedirs (name)
 123             self.dir = name
 124         else:
 125             self.dir = tempfile.mkdtemp ()
 126
 127         os.chdir (self.dir)
 128
 129     def clean (self):
 130         import shutil
 131         shutil.rmtree (self.dir)
 132     def __del__ (self):
 133         self.clean ()
 134     def __call__ (self):
 135         return self.dir
 136     def __repr__ (self):
 137         return self.dir
 138     def __str__ (self):
 139         return self.dir
 140
 141 def setup_temp  (name):
 142     global temp_dir
 143     if not temp_dir:
 144         temp_dir = TempDirectory (name)
 145     return temp_dir ()
 146
 147 def popen (cmd, mode = 'r', ignore_error = 0):
 148     if options.verbose:
 149         progress (_ ("Opening pipe `%s\'") % cmd)
 150     pipe = os.popen (cmd, mode)
 151     if options.verbose:
 152         progress ('\n')
 153     return pipe
 154
 155 def system (cmd, ignore_error = 0):
 156     """Run CMD. If IGNORE_ERROR is set, don't complain when CMD returns non zero.
 157
 158     RETURN VALUE
 159
 160     Exit status of CMD
 161     """
 162
 163     if options.verbose:
 164         progress (_ ("Invoking `%s\'\n") % cmd)
 165     st = os.system (cmd)
 166     if st:
 167         name = re.match ('[ \t]*([^ \t]*)', cmd).group (1)
 168         msg = name + ': ' + _ ("command exited with value %d") % st
 169         if ignore_error:
 170             warning (msg + ' ' + _ ("(ignored)") + ' ')
 171         else:
 172             error (msg)
 173     if options.verbose:
 174         progress ('\n')
 175     return st
 176
 177 def strip_extension (f, ext):
 178     (p, e) = os.path.splitext (f)
 179     if e == ext:
 180         e = ''
 181     return p + e
 182
 183
 184 ################################################################
 185 # END Library
 186
 187
 188
 189 options = None
 190 exit_value = 0
 191 backend_options = ''
 192 program_name = 'mftrace'
 193 temp_dir = None
 194 program_version = '@VERSION@'
 195 origdir = os.getcwd ()
 196
 197 coding_dict = {
 198
 199     # from TeTeX
 200     'TeX typewriter text': '09fbbfac.enc', # cmtt10
 201     'TeX math symbols':'10037936.enc ', # cmbsy
 202     'ASCII caps and digits':'1b6d048e', # cminch
 203     'TeX math italic': 'aae443f0.enc ', # cmmi10
 204     'TeX extended ASCII':'d9b29452.enc',
 205     'TeX text': 'f7b6d320.enc',
 206     'TeX text without f-ligatures': '0ef0afca.enc',
 207
 208     'Extended TeX Font Encoding - Latin': 'tex256.enc',
 209
 210     # LilyPond.
 211     'fetaBraces': 'feta-braces-a.enc',
 212     'fetaNumber': 'feta-nummer10.enc',
 213     'fetaMusic': 'feta20.enc',
 214     'parmesanMusic': 'parmesan20.enc',
 215     }
 216
 217
 218 def find_file (nm):
 219     for d in include_dirs:
 220         p = os.path.join (d, nm)
 221         try:
 222             open (p)
 223             return os.path.abspath (p)
 224         except IOError:
 225             pass
 226
 227     p = popen ('kpsewhich %s' % shell_escape_filename (nm)).read ()
 228     p = p.strip ()
 229
 230     if options.dos_kpath:
 231         orig = p
 232         p = string.lower (p)
 233         p = re.sub ('^([a-z]):', '/cygdrive/\\1', p)
 234         p = re.sub ('\\\\', '/', p)
 235         sys.stderr.write ("Got `%s' from kpsewhich, using `%s'\n" % (orig, p))
 236     return p
 237
 238
 239 def flag_error ():
 240     global exit_value
 241     exit_value = 1
 242
 243 ################################################################
 244 # TRACING.
 245 ################################################################
 246
 247 def autotrace_command (fn, opts):
 248     opts = " " + opts + " --background-color=FFFFFF --output-format=eps --input-format=pbm "
 249     return options.trace_binary + opts + backend_options \
 250        + " --output-file=char.eps %s " % fn
 251
 252 def potrace_command (fn, opts):
 253     return options.trace_binary + opts \
 254         + ' -u %d ' % options.grid_scale \
 255         + backend_options \
 256         + " -q -c --eps --output=char.eps %s " % (fn)
 257
 258 trace_command = None
 259 path_to_type1_ops = None
 260
 261 def trace_one (pbmfile, id):
 262     """
 263     Run tracer, do error handling
 264     """
 265
 266     status = system (trace_command (pbmfile, ''), 1)
 267
 268     if status == 2:
 269         sys.stderr.write ("\nUser interrupt. Exiting\n")
 270         sys.exit (2)
 271
 272     if status == 0 and options.keep_temp_dir:
 273         shutil.copy2 (pbmfile, '%s.pbm' % id)
 274         shutil.copy2 ('char.eps', '%s.eps' % id)
 275
 276     if status != 0:
 277         error_file = os.path.join (origdir, 'trace-bug-%s.pbm' % id)
 278         shutil.copy2 (pbmfile, error_file)
 279         msg = """Trace failed on bitmap.  Bitmap left in `%s\'
 280 Failed command was:
 281
 282     %s
 283
 284 Please submit a bugreport to %s development.""" \
 285         % (error_file, trace_command (error_file, ''), options.trace_binary)
 286
 287         if options.keep_trying:
 288             warning (msg)
 289             sys.stderr.write ("\nContinuing trace...\n")
 290             flag_error ()
 291         else:
 292             msg = msg + '\nRun mftrace with --keep-trying to produce a font anyway\n'
 293             error (msg)
 294     else:
 295         return 1
 296
 297     if status != 0:
 298         warning ("Failed, skipping character.\n")
 299         return 0
 300     else:
 301         return 1
 302
 303 def make_pbm (filename, outname, char_number):
 304     """ Extract bitmap from the PK file FILENAME (absolute) using `gf2pbm'.
 305     Return FALSE if the glyph is not valid.
 306     """
 307
 308     command = "%s/gf2pbm -n %d -o %s %s" % (bindir, char_number, outname, filename)
 309     status = system (command, ignore_error = 1)
 310     return (status == 0)
 311
 312 def read_encoding (file):
 313     sys.stderr.write (_ ("Using encoding file: `%s'\n") % file)
 314
 315     str = open (file).read ()
 316     str = re.sub ("%.*", '', str)
 317     str = re.sub ("[\n\t \f]+", ' ', str)
 318     m = re.search ('/([^ ]+) \[([^\]]+)\] def', str)
 319     if not m:
 320         error ("Encoding file is invalid")
 321
 322     name = m.group (1)
 323     cod = m.group (2)
 324     cod = re.sub ('[ /]+', ' ', cod)
 325     cods = string.split (cod)
 326
 327     return (name, cods)
 328
 329 def zip_to_pairs (as):
 330     r = []
 331     while as:
 332         r.append ((as[0], as[1]))
 333         as = as[2:]
 334     return r
 335
 336 def unzip_pairs (tups):
 337     lst = []
 338     while tups:
 339         lst = lst + list (tups[0])
 340         tups = tups[1:]
 341     return lst
 342
 343 def autotrace_path_to_type1_ops (at_file, bitmap_metrics, tfm_wid, magnification):
 344     inv_scale = 1000.0 / magnification
 345
 346     (size_y, size_x, off_x, off_y) = map (lambda m, s = inv_scale: m * s,
 347                        bitmap_metrics)
 348     ls = open (at_file).readlines ()
 349     bbox = (10000, 10000, -10000, -10000)
 350
 351     while ls and ls[0] != '*u\n':
 352         ls = ls[1:]
 353
 354     if ls == []:
 355         return (bbox, '')
 356
 357     ls = ls[1:]
 358
 359     commands = []
 360
 361
 362     while ls[0] != '*U\n':
 363         ell = ls[0]
 364         ls = ls[1:]
 365
 366         toks = string.split (ell)
 367
 368         if len (toks) < 1:
 369             continue
 370         cmd = toks[-1]
 371         args = map (lambda m, s = inv_scale: s * float (m),
 372               toks[:-1])
 373         if options.round_to_int:
 374             args = zip_to_pairs (map (round, args))
 375         else:
 376             args = zip_to_pairs (args)
 377         commands.append ((cmd, args))
 378
 379     expand = {
 380         'l': 'rlineto',
 381         'm': 'rmoveto',
 382         'c': 'rrcurveto',
 383         'f': 'closepath',
 384         }
 385
 386     cx = 0
 387     cy = size_y - off_y - inv_scale
 388
 389     # t1asm seems to fuck up when using sbw. Oh well.
 390     t1_outline =  '  %d %d hsbw\n' % (- off_x, tfm_wid)
 391     bbox = (10000, 10000, -10000, -10000)
 392
 393     for (c, args) in commands:
 394
 395         na = []
 396         for a in args:
 397             (nx, ny) = a
 398             if c == 'l' or c == 'c':
 399                 bbox = update_bbox_with_point (bbox, a)
 400
 401             na.append ((nx - cx, ny - cy))
 402             (cx, cy) = (nx, ny)
 403
 404         a = na
 405         c = expand[c]
 406         if options.round_to_int:
 407             a = map (lambda x: '%d' % int (round (x)),
 408                 unzip_pairs (a))
 409         else:
 410             a = map (lambda x: '%d %d div' \
 411                 % (int (round (x * options.grid_scale/inv_scale)),
 412                   int (round (options.grid_scale/inv_scale))),
 413                 unzip_pairs (a))
 414
 415         t1_outline = t1_outline + ' %s %s\n' % (string.join (a), c)
 416
 417     t1_outline = t1_outline + ' endchar '
 418     t1_outline = '{\n %s } |- \n' % t1_outline
 419
 420     return (bbox, t1_outline)
 421
 422 # FIXME: Cut and paste programming
 423 def potrace_path_to_type1_ops (at_file, bitmap_metrics, tfm_wid, magnification):
 424     inv_scale = 1000.0 / magnification
 425
 426     (size_y, size_x, off_x, off_y) = map (lambda m,
 427                        s = inv_scale: m * s,
 428                        bitmap_metrics)
 429     ls = open (at_file).readlines ()
 430     bbox =  (10000, 10000, -10000, -10000)
 431
 432     while ls and ls[0] != '0 setgray\n':
 433         ls = ls[1:]
 434
 435     if ls == []:
 436         return (bbox, '')
 437     ls = ls[1:]
 438     commands = []
 439
 440     while ls and ls[0] != 'grestore\n':
 441         ell = ls[0]
 442         ls = ls[1:]
 443
 444         if ell == 'fill\n':
 445             continue
 446
 447         toks = string.split (ell)
 448
 449         if len (toks) < 1:
 450             continue
 451         cmd = toks[-1]
 452         args = map (lambda m, s = inv_scale: s * float (m),
 453               toks[:-1])
 454         args = zip_to_pairs (args)
 455         commands.append ((cmd, args))
 456
 457     # t1asm seems to fuck up when using sbw. Oh well.
 458     t1_outline = '  %d %d hsbw\n' % (- off_x, tfm_wid)
 459     bbox =  (10000, 10000, -10000, -10000)
 460
 461     # Type1 fonts have relative coordinates (doubly relative for
 462     # rrcurveto), so must convert moveto and rcurveto.
 463
 464     z = (0.0, size_y - off_y - 1.0)
 465     for (c, args) in commands:
 466         args = map (lambda x: (x[0] * (1.0 / options.grid_scale),
 467                    x[1] * (1.0 / options.grid_scale)), args)
 468
 469         if c == 'moveto':
 470             args = [(args[0][0] - z[0], args[0][1] - z[1])]
 471
 472         zs = []
 473         for a in args:
 474             lz = (z[0] + a[0], z[1] + a[1])
 475             bbox = update_bbox_with_point (bbox, lz)
 476             zs.append (lz)
 477
 478         if options.round_to_int:
 479             last_discr_z = (int (round (z[0])), int (round (z[1])))
 480         else:
 481             last_discr_z = (z[0], z[1])
 482         args = []
 483         for a in zs:
 484             if options.round_to_int:
 485                 a = (int (round (a[0])), int (round (a[1])))
 486             else:
 487                 a = (a[0], a[1])
 488             args.append ((a[0] - last_discr_z[0],
 489                    a[1] - last_discr_z[1]))
 490
 491             last_discr_z = a
 492
 493         if zs:
 494             z = zs[-1]
 495         c = { 'rcurveto': 'rrcurveto',
 496            'moveto': 'rmoveto',
 497            'closepath': 'closepath',
 498            'rlineto': 'rlineto'}[c]
 499
 500         if c == 'rmoveto':
 501             t1_outline += ' closepath '
 502
 503         if options.round_to_int:
 504             args = map (lambda x: '%d' % int (round (x)),
 505                   unzip_pairs (args))
 506         else:
 507             args = map (lambda x: '%d %d div' \
 508                   % (int (round (x*options.grid_scale/inv_scale)),
 509                    int (round (options.grid_scale/inv_scale))),
 510                   unzip_pairs (args))
 511
 512         t1_outline = t1_outline + '  %s %s\n' % (string.join (args), c)
 513
 514     t1_outline = t1_outline + ' endchar '
 515     t1_outline = '{\n %s } |- \n' % t1_outline
 516
 517     return (bbox, t1_outline)
 518
 519 def read_gf_dims (name, c):
 520     str = popen ('%s/gf2pbm -n %d -s %s' % (bindir, c, name)).read ()
 521     m = re.search ('size: ([0-9]+)+x([0-9]+), offset: \(([0-9-]+),([0-9-]+)\)', str)
 522
 523     return tuple (map (int, m.groups ()))
 524
 525 def trace_font (fontname, gf_file, metric, glyphs, encoding,
 526         magnification, fontinfo):
 527     t1os = []
 528     font_bbox = (10000, 10000, -10000, -10000)
 529
 530     progress (_ ("Tracing bitmaps..."))
 531
 532     if options.verbose:
 533         progress ('\n')
 534     else:
 535         progress (' ')
 536
 537     # for single glyph testing.
 538     # glyphs = []
 539     for a in glyphs:
 540         if encoding[a] == ".notavail":
 541             continue
 542         valid = metric.has_char (a)
 543         if not valid:
 544             encoding[a] = ".notavail"
 545             continue
 546
 547         valid = make_pbm (gf_file, 'char.pbm', a)
 548         if not valid:
 549             encoding[a] = ".notavail"
 550             continue
 551
 552         (w, h, xo, yo) = read_gf_dims (gf_file, a)
 553
 554         if not options.verbose:
 555             sys.stderr.write ('[%d' % a)
 556             sys.stderr.flush ()
 557
 558         # this wants the id, not the filename.
 559         success = trace_one ("char.pbm", '%s-%d' % (options.gffile, a))
 560         if not success:
 561             sys.stderr.write ("(skipping character)]")
 562             sys.stderr.flush ()
 563             encoding[a] = ".notavail"
 564             continue
 565
 566         if not options.verbose:
 567             sys.stderr.write (']')
 568             sys.stderr.flush ()
 569         metric_width = metric.get_char (a).width
 570         tw = int (round (metric_width / metric.design_size * 1000))
 571         (bbox, t1o) = path_to_type1_ops ("char.eps", (h, w, xo, yo),
 572                         tw, magnification)
 573
 574         if t1o == '':
 575             encoding[a] = ".notavail"
 576             continue
 577
 578         font_bbox = update_bbox_with_bbox (font_bbox, bbox)
 579
 580         t1os.append ('\n/%s %s ' % (encoding[a], t1o))
 581
 582     if not options.verbose:
 583         progress ('\n')
 584     to_type1 (t1os, font_bbox, fontname, encoding, magnification, fontinfo)
 585
 586 def ps_encode_encoding (encoding):
 587     str = ' %d array\n0 1 %d {1 index exch /.notdef put} for\n' \
 588        % (len (encoding), len (encoding)-1)
 589
 590     for i in range (0, len (encoding)):
 591         if encoding[i] != ".notavail":
 592             str = str + 'dup %d /%s put\n' % (i, encoding[i])
 593
 594     return str
 595
 596
 597 def gen_unique_id (dict):
 598     nm = 'FullName'
 599     return 4000000 + (hash (nm) % 1000000)
 600
 601 def to_type1 (outlines, bbox, fontname, encoding, magnification, fontinfo):
 602
 603     """
 604     Fill in the header template for the font, append charstrings,
 605     and shove result through t1asm
 606     """
 607     template = r"""%%!PS-AdobeFont-1.0: %(FontName)s %(VVV)s.%(WWW)s
 608 13 dict begin
 609 /FontInfo 16 dict dup begin
 610 /version (%(VVV)s.%(WWW)s) readonly def
 611 /Notice (%(Notice)s) readonly def
 612 /FullName (%(FullName)s) readonly def
 613 /FamilyName (%(FamilyName)s) readonly def
 614 /Weight (%(Weight)s) readonly def
 615 /ItalicAngle %(ItalicAngle)s def
 616 /isFixedPitch %(isFixedPitch)s def
 617 /UnderlinePosition %(UnderlinePosition)s def
 618 /UnderlineThickness %(UnderlineThickness)s def
 619 end readonly def
 620 /FontName /%(FontName)s def
 621 /FontType 1 def
 622 /PaintType 0 def
 623 /FontMatrix [%(xrevscale)f 0 0 %(yrevscale)f 0 0] readonly def
 624 /FontBBox {%(llx)d %(lly)d %(urx)d %(ury)d} readonly def
 625 /Encoding %(Encoding)s readonly def
 626 currentdict end
 627 currentfile eexec
 628 dup /Private 20 dict dup begin
 629 /-|{string currentfile exch readstring pop}executeonly def
 630 /|-{noaccess def}executeonly def
 631 /|{noaccess put}executeonly def
 632 /lenIV 4 def
 633 /password 5839 def
 634 /MinFeature {16 16} |-
 635 /BlueValues [] |-
 636 /OtherSubrs [ {} {} {} {} ] |-
 637 /ForceBold false def
 638 /Subrs 1 array
 639 dup 0 { return } |
 640 |-
 641 2 index
 642 /CharStrings %(CharStringsLen)d dict dup begin
 643 %(CharStrings)s
 644
 645
 646 /.notdef { 0 0 hsbw endchar } |-
 647 end
 648 end
 649 readonly put
 650 noaccess put
 651 dup/FontName get exch definefont
 652 pop mark currentfile closefile
 653 cleartomark
 654 """
 655 ## apparently, some fonts end the file with cleartomark.  Don't know why.
 656
 657     copied_fields = ['FontName', 'FamilyName', 'FullName', 'DesignSize',
 658             'ItalicAngle', 'isFixedPitch', 'Weight']
 659
 660     vars = {
 661         'VVV': '001',
 662         'WWW': '001',
 663         'Notice': 'Generated from MetaFont bitmap by mftrace %s, http://www.xs4all.nl/~hanwen/mftrace/ ' % program_version,
 664         'UnderlinePosition': '-100',
 665         'UnderlineThickness': '50',
 666         'xrevscale': 1.0/1000.0,
 667         'yrevscale': 1.0/1000.0,
 668         'llx': bbox[0],
 669         'lly': bbox[1],
 670         'urx': bbox[2],
 671         'ury': bbox[3],
 672         'Encoding': ps_encode_encoding (encoding),
 673
 674         # need one extra entry for .notdef
 675         'CharStringsLen': len (outlines) + 1,
 676         'CharStrings': string.join (outlines),
 677         'CharBBox': '0 0 0 0',
 678     }
 679
 680     for k in copied_fields:
 681         vars[k] = fontinfo[k]
 682
 683     open ('mftrace.t1asm', 'w').write (template % vars)
 684
 685 def update_bbox_with_point (bbox, pt):
 686     (llx, lly, urx, ury) = bbox
 687     llx = min (pt[0], llx)
 688     lly = min (pt[1], lly)
 689     urx = max (pt[0], urx)
 690     ury = max (pt[1], ury)
 691
 692     return         (llx, lly, urx, ury)
 693
 694 def update_bbox_with_bbox (bb, dims):
 695     (llx, lly, urx, ury) = bb
 696     llx = min (llx, dims[0])
 697     lly = min (lly, dims[1])
 698     urx = max (urx, dims[2])
 699     ury = max (ury, dims[3])
 700
 701     return (llx, lly, urx, ury)
 702
 703 def get_binary (name):
 704     search_path = string.split (os.environ['PATH'], ':')
 705     for p in search_path:
 706         nm = os.path.join (p, name)
 707         if os.path.exists (nm):
 708             return nm
 709
 710     return ''
 711
 712 def get_fontforge_command ():
 713     fontforge_cmd = ''
 714     for ff in ['fontforge', 'pfaedit']:
 715         if get_binary(ff):
 716             fontforge_cmd = ff
 717
 718     stat = 1
 719     if fontforge_cmd:
 720         stat = system ("%s -usage > pfv 2>&1 " % fontforge_cmd,
 721                ignore_error = 1)
 722
 723         if stat != 0:
 724             warning ("Command `%s -usage' failed.  Cannot simplify or convert to TTF.\n" % fontforge_cmd)
 725
 726     if fontforge_cmd == 'pfaedit' \
 727      and re.search ("-script", open ('pfv').read ()) == None:
 728         warning ("pfaedit does not support -script.  Install 020215 or later.\nCannot simplify or convert to TTF.\n")
 729         return ''
 730     return fontforge_cmd
 731
 732 def tfm2kpx (tfmname, encoding):
 733     kpx_lines = []
 734     pl = popen ("tftopl %s" % (tfmname))
 735
 736     label_pattern = re.compile (
 737         "\A   \(LABEL ([DOHC]{1}) ([A-Za-z0-9]*)\)")
 738     krn_pattern = re.compile (
 739         "\A   \(KRN ([DOHC]{1}) ([A-Za-z0-9]*) R (-?[\d\.]+)\)")
 740
 741     first = 0
 742     second = 0
 743
 744     for line in pl.readlines ():
 745
 746         label_match = label_pattern.search (line)
 747         if not (label_match is None):
 748             if label_match.group (1) == "D":
 749                 first = int (label_match.group (2))
 750             elif label_match.group (1) == "O":
 751                 first = int (label_match.group (2), 8)
 752             elif label_match.group (1) == "C":
 753                 first = ord (label_match.group (2))
 754
 755         krn_match = krn_pattern.search (line)
 756         if not (krn_match is None):
 757             if krn_match.group (1) == "D":
 758                 second = int (krn_match.group (2))
 759             elif krn_match.group (1) == "O":
 760                 second = int (krn_match.group (2), 8)
 761             elif krn_match.group (1) == "C":
 762                 second = ord (krn_match.group (2))
 763
 764             krn = round (float (krn_match.group (3)) * 1000)
 765
 766             if (encoding[first] != '.notavail' and
 767                 encoding[first] != '.notdef' and
 768                 encoding[second] != '.notavail' and
 769                 encoding[second] != '.notdef'):
 770
 771                 kpx_lines.append ("KPX %s %s %d\n" % (
 772                     encoding[first], encoding[second], krn))
 773
 774     return kpx_lines
 775
 776 def get_afm (t1_path, tfmname, encoding, out_path):
 777     afm_stream = popen ("printafm %s" % (t1_path))
 778     afm_lines = []
 779     kpx_lines = tfm2kpx (tfmname, encoding)
 780
 781     for line in afm_stream.readlines ():
 782         afm_lines.append (line)
 783
 784         if re.match (r"^EndCharMetrics", line, re.I):
 785             afm_lines.append ("StartKernData\n")
 786             afm_lines.append ("StartKernPairs %d\n" % len (kpx_lines))
 787
 788             for kpx_line in kpx_lines:
 789                 afm_lines.append (kpx_line)
 790
 791             afm_lines.append ("EndKernPairs\n")
 792             afm_lines.append ("EndKernData\n")
 793
 794     progress (_ ("Writing metrics to `%s'... ") % out_path)
 795     afm_file = open (out_path, 'w')
 796     afm_file.writelines (afm_lines)
 797     afm_file.flush ()
 798     afm_file.close ()
 799
 800     progress ('\n')
 801
 802 def assemble_font (fontname, format, is_raw):
 803     ext = '.' + format
 804     asm_opt = '--pfa'
 805
 806     if format == 'pfb':
 807       asm_opt = '--pfb'
 808
 809     if is_raw:
 810       ext = ext + '.raw'
 811
 812     outname = fontname + ext
 813
 814     progress (_ ("Assembling raw font to `%s'... ") % outname)
 815     if options.verbose:
 816         progress ('\n')
 817     system ('t1asm %s mftrace.t1asm %s' % (asm_opt, shell_escape_filename (outname)))
 818     progress ('\n')
 819     return outname
 820
 821 def make_outputs (fontname, formats, encoding):
 822     """
 823     run pfaedit to convert to other formats
 824     """
 825
 826     ff_needed = 0
 827     ff_command = ""
 828
 829     if (options.simplify or options.round_to_int or 'ttf' in formats or 'svg' in formats):
 830         ff_needed = 1
 831     if ff_needed:
 832         ff_command = get_fontforge_command ()
 833
 834     if ff_needed and ff_command:
 835         raw_name = assemble_font (fontname, 'pfa', 1)
 836
 837         simplify_cmd = ''
 838         if options.round_to_int:
 839             simplify_cmd = 'RoundToInt ();'
 840         generate_cmds = ''
 841         for f in formats:
 842             generate_cmds += 'Generate("%s");' % (fontname  + '.' + f)
 843
 844         if options.simplify:
 845             simplify_cmd ='''SelectAll ();
 846
 847 AddExtrema();
 848 Simplify ();
 849 %(simplify_cmd)s
 850 AutoHint ();''' % vars()
 851
 852         pe_script = ('''#!/usr/bin/env %(ff_command)s
 853 Open ($1);
 854 MergeKern($2);
 855 %(simplify_cmd)s
 856 %(generate_cmds)s
 857 Quit (0);
 858 ''' % vars())
 859
 860         open ('to-ttf.pe', 'w').write (pe_script)
 861         if options.verbose:
 862             print 'Fontforge script', pe_script
 863         system ("%s -script to-ttf.pe %s %s" % (ff_command,
 864               shell_escape_filename (raw_name), shell_escape_filename (options.tfm_file)))
 865     else:
 866         t1_path = ''
 867
 868         if ('pfa' in formats):
 869             t1_path = assemble_font (fontname, 'pfa', 0)
 870
 871         if ('pfb' in formats):
 872             t1_path = assemble_font (fontname, 'pfb', 0)
 873
 874         if (t1_path != '' and 'afm' in formats):
 875             get_afm (t1_path, options.tfm_file, encoding, fontname + '.afm')
 876
 877
 878 def getenv (var, default):
 879     if os.environ.has_key (var):
 880         return os.environ[var]
 881     else:
 882         return default
 883
 884 def gen_pixel_font (filename, metric, magnification):
 885     """
 886     Generate a GF file for FILENAME, such that `magnification'*mfscale
 887     (default 1000 * 1.0) pixels fit on the designsize.
 888     """
 889     base_dpi = 1200
 890
 891     size = metric.design_size
 892
 893     size_points = size * 1/72.27 * base_dpi
 894
 895     mag = magnification / size_points
 896
 897     prod = mag * base_dpi
 898     try:
 899         open ('%s.%dgf' % (filename, prod))
 900     except IOError:
 901
 902         ## MFINPUTS/TFMFONTS take kpathsea specific values;
 903         ## we should analyse them any further.
 904         os.environ['MFINPUTS'] = '%s:%s' % (origdir,
 905                           getenv ('MFINPUTS', ''))
 906         os.environ['TFMFONTS'] = '%s:%s' % (origdir,
 907                           getenv ('TFMINPUTS', ''))
 908
 909         progress (_ ("Running Metafont..."))
 910
 911         cmdstr = r"mf '\mode:=lexmarks; mag:=%f; nonstopmode; input %s'" %  (mag, filename)
 912         if not options.verbose:
 913             cmdstr = cmdstr + ' 1>/dev/null 2>/dev/null'
 914         st = system (cmdstr, ignore_error = 1)
 915         progress ('\n')
 916
 917         logfile = '%s.log' % filename
 918         log = ''
 919         prod = 0
 920         if os.path.exists (logfile):
 921             log = open (logfile).read ()
 922             m = re.search ('Output written on %s.([0-9]+)gf' % re.escape (filename), log)
 923             prod = int (m.group (1))
 924
 925         if st:
 926             sys.stderr.write ('\n\nMetafont failed.  Excerpt from the log file: \n\n*****')
 927             m = re.search ("\n!", log)
 928             start = m.start (0)
 929             short_log = log[start:start+200]
 930             sys.stderr.write (short_log)
 931             sys.stderr.write ('\n*****\n')
 932             if re.search ('Arithmetic overflow', log):
 933                 sys.stderr.write ("""
 934
 935 Apparently, some numbers overflowed.  Try using --magnification with a
 936 lower number.  (Current magnification: %d)
 937 """ % magnification)
 938
 939             if not options.keep_trying or prod == 0:
 940                 sys.exit (1)
 941             else:
 942                 sys.stderr.write ('\n\nTrying to proceed despite of the Metafont errors...\n')
 943
 944
 945
 946     return "%s.%d" % (filename, prod)
 947
 948 def parse_command_line ():
 949     p = optparse.OptionParser (version="""mftrace @VERSION@
 950
 951 This program is free software.  It is covered by the GNU General Public
 952 License and you are welcome to change it and/or distribute copies of it
 953 under certain conditions.  Invoke as `mftrace --warranty' for more
 954 information.
 955
 956 Copyright (c) 2005--2006 by
 957  Han-Wen Nienhuys <hanwen@xs4all.nl>
 958
 959 """)
 960     p.usage = "mftrace [OPTION]... FILE..."
 961     p.description = _ ("Generate Type1 or TrueType font from Metafont source.")
 962
 963     p.add_option ('-k', '--keep',
 964                   action="store_true",
 965                   dest="keep_temp_dir",
 966                   help=_ ("Keep all output in directory %s.dir") % program_name)
 967     p.add_option ('','--magnification',
 968                   dest="magnification",
 969                   metavar="MAG",
 970                   default=1000.0,
 971                   type="float",
 972                   help=_("Set magnification for MF to MAG (default: 1000)"))
 973     p.add_option ('-V', '--verbose',
 974                   action='store_true',
 975                   default=False,
 976                   help=_ ("Be verbose"))
 977     p.add_option ('-f', '--formats',
 978                   action="append",
 979                   dest="formats",
 980                   default=[],
 981                   help=_("Which formats to generate (choices: AFM, PFA, PFB, TTF, SVG)"))
 982     p.add_option ('', '--simplify',
 983                   action="store_true",
 984                   dest="simplify",
 985                   help=_ ("Simplify using fontforge"))
 986     p.add_option ('', '--gffile',
 987                   dest="gffile",
 988                   help= _("Use gf FILE instead of running Metafont"))
 989     p.add_option ('-I', '--include',
 990                   dest="include_dirs",
 991                   action="append",
 992                   default=[],
 993                   help=_("Add to path for searching files"))
 994     p.add_option ('','--glyphs',
 995                   default=[],
 996                   action="append",
 997                   dest="glyphs",
 998                   metavar="LIST",
 999                   help= _('Process only these glyphs.  LIST is comma separated'))
1000     p.add_option ('', '--tfmfile',
1001                   metavar='FILE',
1002                   action='store',
1003                   dest='tfm_file')
1004
1005     p.add_option ('-e', '--encoding',
1006                   metavar="FILE",
1007                   action='store',
1008                   dest="encoding_file",
1009                   default="",
1010                   help= _ ("Use encoding file FILE"))
1011     p.add_option ('','--keep-trying',
1012                   dest='keep_trying',
1013                   default=False,
1014                   action="store_true",
1015                   help= _ ("Don't stop if tracing fails"))
1016     p.add_option ('-w', '--warranty',
1017                   action="store_true",
1018                   help=_ ("show warranty and copyright"))
1019     p.add_option ('','--dos-kpath',
1020                   dest="dos_kpath",
1021                   help=_("try to use Miktex kpsewhich"))
1022     p.add_option ('', '--potrace',
1023                   dest='potrace',
1024                   help=_ ("Use potrace"))
1025     p.add_option ('', '--autotrace',
1026                   dest='autotrace',
1027                   help=_ ("Use autotrace"))
1028     p.add_option ('', '--no-afm',
1029                   action='store_false',
1030                   dest="read_afm",
1031                   default=True,
1032                   help=_("Don't read AFM file"))
1033     p.add_option ('','--noround',
1034                   action="store_false",
1035                   dest='round_to_int',
1036                   default=True,
1037                   help= ("Do not round coordinates of control points to integer values (use with --grid)"))
1038     p.add_option ('','--grid',
1039                   metavar='SCALE',
1040                   dest='grid_scale',
1041                   type='float',
1042                   default = 1.0,
1043                   help=_ ("Set reciprocal grid size in em units"))
1044     p.add_option ('-D','--define',
1045                   metavar="SYMBOL=VALUE",
1046                   dest="defs",
1047                   default=[],
1048                   action='append',help=_("Set the font info SYMBOL to VALUE"))
1049
1050     global options
1051     (options, files) = p.parse_args ()
1052
1053     if not files:
1054         sys.stderr.write ('Need argument on command line \n')
1055         p.print_help ()
1056         sys.exit (2)
1057
1058     if options.warranty :
1059         warranty ()
1060         sys.exit (0)
1061
1062     options.font_info = {}
1063     for d in options.defs:
1064         kv = d.split('=')
1065         if len (kv) == 1:
1066             options.font_info[kv] = 'true'
1067         elif len (kv) > 1:
1068             options.font_info[kv[0]] = '='.join (kv[1:])
1069
1070     def comma_sepped_to_list (x):
1071         fs = []
1072         for f in x:
1073             fs += f.lower ().split (',')
1074         return fs
1075
1076     options.formats = comma_sepped_to_list (options.formats)
1077
1078     new_glyphs = []
1079     for r in options.glyphs:
1080         new_glyphs += r.split (',')
1081     options.glyphs = new_glyphs
1082
1083     glyph_range = []
1084     for r in options.glyphs:
1085         glyph_subrange = map (int, string.split (r, '-'))
1086         if len (glyph_subrange) == 2 and glyph_subrange[0] < glyph_subrange[1] + 1:
1087             glyph_range += range (glyph_subrange[0], glyph_subrange[1] + 1)
1088         else:
1089             glyph_range.append (glyph_subrange[0])
1090
1091     options.glyphs = glyph_range
1092
1093     options.trace_binary = ''
1094     if options.potrace:
1095         options.trace_binary = 'potrace'
1096     elif options.autotrace:
1097         options.trace_binary = 'autotrace'
1098
1099     if options.formats == []:
1100         options.formats = ['pfa']
1101
1102
1103
1104     global trace_command
1105     global path_to_type1_ops
1106
1107     stat = os.system ('potrace --version > /dev/null 2>&1 ')
1108     if options.trace_binary != 'autotrace' and stat == 0:
1109         options.trace_binary = 'potrace'
1110
1111         trace_command = potrace_command
1112         path_to_type1_ops = potrace_path_to_type1_ops
1113
1114     stat = os.system ('autotrace --version > /dev/null 2>&1 ')
1115     if options.trace_binary != 'potrace' and stat == 0:
1116         options.trace_binary = 'autotrace'
1117         trace_command = autotrace_command
1118         path_to_type1_ops = autotrace_path_to_type1_ops
1119
1120     if not options.trace_binary:
1121         error (_ ("No tracing program found.\nInstall potrace or autotrace."))
1122
1123     return files
1124
1125
1126 def derive_font_name (family, fullname):
1127     fullname = re.sub (family, '', fullname)
1128     family = re.sub (' ',  '', family)
1129     fullname = re.sub ('Oldstyle Figures', 'OsF', fullname)
1130     fullname = re.sub ('Small Caps', 'SC', fullname)
1131     fullname = re.sub ('[Mm]edium', '', fullname)
1132     fullname = re.sub ('[^A-Za-z0-9]', '', fullname)
1133     return '%s-%s' % (family, fullname)
1134
1135 def cm_guess_font_info (filename, fontinfo):
1136     # urg.
1137     filename = re.sub ("cm(.*)tt", r"cmtt\1", filename)
1138     m = re.search ("([0-9]+)$", filename)
1139     design_size = ''
1140     if m:
1141         design_size = int (m.group (1))
1142         fontinfo['DesignSize'] = design_size
1143
1144     prefixes = [("cmtt", "Computer Modern Typewriter"),
1145           ("cmvtt", "Computer Modern Variable Width Typewriter"),
1146           ("cmss", "Computer Modern Sans"),
1147           ("cm", "Computer Modern")]
1148
1149     family = ''
1150     for (k, v) in prefixes:
1151         if re.search (k, filename):
1152             family = v
1153             if k == 'cmtt':
1154                 fontinfo['isFixedPitch'] = 'true'
1155             filename = re.sub (k, '', filename)
1156             break
1157
1158     # shapes
1159     prefixes = [("r", "Roman"),
1160           ("mi", "Math italic"),
1161           ("u", "Unslanted italic"),
1162           ("sl", "Oblique"),
1163           ("csc", "Small Caps"),
1164           ("ex", "Math extension"),
1165           ("ti", "Text italic"),
1166           ("i", "Italic")]
1167     shape = ''
1168     for (k, v) in prefixes:
1169         if re.search (k, filename):
1170             shape = v
1171             filename = re.sub (k, '', filename)
1172
1173     prefixes = [("b", "Bold"),
1174           ("d", "Demi bold")]
1175     weight = 'Regular'
1176     for (k, v) in prefixes:
1177         if re.search (k, filename):
1178             weight = v
1179             filename = re.sub (k, '', filename)
1180
1181     prefixes = [("c", "Condensed"),
1182           ("x", "Extended")]
1183     stretch = ''
1184     for (k, v) in prefixes:
1185         if re.search (k, filename):
1186             stretch = v
1187             filename = re.sub (k, '', filename)
1188
1189     fontinfo['ItalicAngle'] = 0
1190     if re.search ('[Ii]talic', shape) or re.search ('[Oo]blique', shape):
1191         a = -14
1192         if re.search ("Sans", family):
1193             a = -12
1194
1195         fontinfo ["ItalicAngle"] = a
1196
1197     fontinfo['Weight'] = weight
1198     fontinfo['FamilyName'] = family
1199     full  = '%s %s %s %s %dpt' \
1200                % (family, shape, weight, stretch, design_size)
1201     full = re.sub (" +", ' ', full)
1202
1203     fontinfo['FullName'] = full
1204     fontinfo['FontName'] = derive_font_name (family, full)
1205
1206     return fontinfo
1207
1208 def ec_guess_font_info (filename, fontinfo):
1209     design_size = 12
1210     m = re.search ("([0-9]+)$", filename)
1211     if m:
1212         design_size = int (m.group (1))
1213         fontinfo['DesignSize'] = design_size
1214
1215     prefixes = [("ecss", "European Computer Modern Sans"),
1216           ("ectt", "European Computer Modern Typewriter"),
1217           ("ec", "European Computer Modern")]
1218
1219     family = ''
1220     for (k, v) in prefixes:
1221         if re.search (k, filename):
1222             if k == 'ectt':
1223                 fontinfo['isFixedPitch'] = 'true'
1224             family = v
1225             filename = re.sub (k, '', filename)
1226             break
1227
1228     # shapes
1229     prefixes = [("r", "Roman"),
1230           ("mi", "Math italic"),
1231           ("u", "Unslanted italic"),
1232           ("sl", "Oblique"),
1233           ("cc", "Small caps"),
1234           ("ex", "Math extension"),
1235           ("ti", "Italic"),
1236           ("i", "Italic")]
1237
1238     shape = ''
1239     for (k, v) in prefixes:
1240         if re.search (k, filename):
1241             shape = v
1242             filename = re.sub (k, '', filename)
1243
1244     prefixes = [("b", "Bold"),
1245           ("d", "Demi bold")]
1246     weight = 'Regular'
1247     for (k, v) in prefixes:
1248         if re.search (k, filename):
1249             weight = v
1250             filename = re.sub (k, '', filename)
1251
1252     prefixes = [("c", "Condensed"),
1253           ("x", "Extended")]
1254     stretch = ''
1255     for (k, v) in prefixes:
1256         if re.search (k, filename):
1257             stretch = v
1258             filename = re.sub (k, '', filename)
1259
1260     fontinfo['ItalicAngle'] = 0
1261     if re.search ('[Ii]talic', shape) or re.search ('[Oo]blique', shape):
1262         a = -14
1263         if re.search ("Sans", family):
1264             a = -12
1265
1266         fontinfo ["ItalicAngle"] = a
1267
1268     fontinfo['Weight'] = weight
1269     fontinfo['FamilyName'] = family
1270     full  = '%s %s %s %s %dpt' \
1271                % (family, shape, weight, stretch, design_size)
1272     full = re.sub (" +", ' ', full)
1273
1274     fontinfo['FontName'] = derive_font_name (family, full)
1275     fontinfo['FullName'] = full
1276
1277     return fontinfo
1278
1279
1280 def guess_fontinfo (filename):
1281     fi = {
1282         'FontName': filename,
1283         'FamilyName': filename,
1284         'Weight': 'Regular',
1285         'ItalicAngle': 0,
1286         'DesignSize' : 12,
1287         'isFixedPitch' : 'false',
1288         'FullName': filename,
1289        }
1290
1291     if re.search ('^cm', filename):
1292         fi.update (cm_guess_font_info (filename, fi))
1293     elif re.search ("^ec", filename):
1294         fi.update (ec_guess_font_info (filename, fi))
1295     elif options.read_afm:
1296         global afmfile
1297         if not afmfile:
1298             afmfile = find_file (filename + '.afm')
1299
1300         if afmfile:
1301             afmfile = os.path.abspath (afmfile)
1302             afm_struct = afm.read_afm_file (afmfile)
1303             fi.update (afm_struct.__dict__)
1304         return fi
1305     else:
1306         sys.stderr.write ("Warning: no extra font information for this font.\n"
1307                  + "Consider writing a XX_guess_font_info() routine.\n")
1308
1309     return fi
1310
1311 def do_file (filename):
1312     encoding_file = options.encoding_file
1313     global include_dirs
1314     include_dirs = options.include_dirs
1315     include_dirs.append (origdir)
1316
1317     basename = strip_extension (filename, '.mf')
1318     progress (_ ("Font `%s'..." % basename))
1319     progress ('\n')
1320
1321     ## setup encoding
1322     if encoding_file and not os.path.exists (encoding_file):
1323         encoding_file = find_file (encoding_file)
1324     elif encoding_file:
1325         encoding_file = os.path.abspath (encoding_file)
1326
1327     ## setup TFM
1328     if options.tfm_file:
1329         options.tfm_file = os.path.abspath (options.tfm_file)
1330     else:
1331         tfm_try = find_file (basename + '.tfm')
1332         if tfm_try:
1333             options.tfm_file = tfm_try
1334
1335     if not os.environ.has_key ("MFINPUTS"):
1336          os.environ["MFINPUTS"] = os.getcwd () + ":"
1337
1338     ## must change dir before calling mktextfm.
1339     if options.keep_temp_dir:
1340         def nop():
1341             pass
1342         setup_temp (os.path.join (os.getcwd (), program_name + '.dir'))
1343         temp_dir.clean = nop
1344     else:
1345         setup_temp (None)
1346
1347     if options.verbose:
1348         progress ('Temporary directory is `%s\'\n' % temp_dir)
1349
1350     if not options.tfm_file:
1351         options.tfm_file = popen ("mktextfm %s 2>/dev/null" % shell_escape_filename (basename)).read ()
1352         if options.tfm_file:
1353             options.tfm_file = options.tfm_file.strip ()
1354             options.tfm_file = os.path.abspath (options.tfm_file)
1355
1356     if not options.tfm_file:
1357         error (_ ("Can not find a TFM file to match `%s'") % basename)
1358
1359     metric = tfm.read_tfm_file (options.tfm_file)
1360
1361     fontinfo = guess_fontinfo (basename)
1362     fontinfo.update (options.font_info)
1363
1364     if not encoding_file:
1365         codingfile = 'tex256.enc'
1366         if not coding_dict.has_key (metric.coding):
1367             sys.stderr.write ("Unknown encoding `%s'; assuming tex256.\n" % metric.coding)
1368         else:
1369             codingfile = coding_dict[metric.coding]
1370
1371         encoding_file = find_file (codingfile)
1372         if not encoding_file:
1373             error (_ ("can't find file `%s'" % codingfile))
1374
1375     (enc_name, encoding) = read_encoding (encoding_file)
1376
1377     if not len (options.glyphs):
1378         options.glyphs = range (0, len (encoding))
1379
1380     if not options.gffile:
1381         # run mf
1382         base = gen_pixel_font (basename, metric, options.magnification)
1383         options.gffile = base + 'gf'
1384     else:
1385         options.gffile = find_file (options.gffile)
1386
1387     # the heart of the program:
1388     trace_font (basename, options.gffile, metric, options.glyphs, encoding,
1389           options.magnification, fontinfo)
1390
1391     make_outputs (basename, options.formats, encoding)
1392     for format in options.formats:
1393         shutil.copy2 (basename + '.' + format, origdir)
1394
1395     os.chdir (origdir)
1396
1397
1398
1399
1400
1401 afmfile = ''
1402 backend_options = getenv ('MFTRACE_BACKEND_OPTIONS', '')
1403 def main ():
1404     files = parse_command_line ()
1405     identify (sys.stderr)
1406
1407     for filename in files:
1408         do_file (filename)
1409     sys.exit (exit_value)
1410
1411 if __name__ =='__main__':
1412     main()