scripts/convert-mudela.py

   1 #!@PYTHON@
   2
   3 # convert-mudela.py -- convertor for mudela versions
   4 #
   5 # source file of the GNU LilyPond music typesetter
   6 #
   7 # (c) 1998
   8
   9 # TODO
  10 #   use -f and -t for -s output
  11
  12 # NEWS
  13 # 0.2
  14 #  - rewrite in python
  15
  16 program_name = 'convert-mudela'
  17 version = '0.2'
  18
  19
  20
  21 import os
  22 import sys
  23 import __main__
  24 import getopt
  25 from string import *
  26 import regex
  27 import regsub
  28 import time
  29 mudela_version_re_str ='\\\\version *\"\(.*\)\"'
  30 mudela_version_re = regex.compile(mudela_version_re_str)
  31
  32 def program_id ():
  33         return '%s version %s' %(program_name,  version);
  34
  35 def identify ():
  36         sys.stdout.write (program_id () + '\n')
  37
  38 def gulp_file(f):
  39         try:
  40                 i = open(f)
  41                 i.seek (0, 2)
  42                 n = i.tell ()
  43                 i.seek (0,0)
  44         except:
  45                 print 'can\'t open file: ' + f + '\n'
  46                 return ''
  47         s = i.read (n)
  48         if len (s) <= 0:
  49                 print 'gulped empty file: ' + f + '\n'
  50         i.close ()
  51         return s
  52
  53
  54 def str_to_tuple (s):
  55         return tuple (map (atoi, split (s,'.')))
  56
  57 def tup_to_str (t):
  58         return join (map (lambda x: '%s' % x, list (t)), '.')
  59
  60 def version_cmp (t1, t2):
  61         for x in [0,1,2]:
  62                 if t1[x] - t2[x]:
  63                         return t1[x] - t2[x]
  64         return 0
  65
  66
  67 def guess_mudela_version(filename):
  68         s = gulp_file (filename)
  69         if mudela_version_re.search(s) <> -1:
  70                 return mudela_version_re.group(1)
  71         else:
  72                 return ''
  73
  74 def help ():
  75         sys.stdout.write (
  76                 ("Usage: %s [OPTION]... [FILE]...\n"
  77                 + "Try to convert to newer mudela-versions\n"
  78                 + "Options:\n"
  79                 + "  -h, --help             print this help\n"
  80                 + '  -e, --edit             in place edit\n'
  81                 + '  -f, --from=VERSION     start from version\n'
  82                 + '  -s, --show-rules       print out all rules.\n'
  83                 + '  -t, --to=VERSION       target version\n') % program_name)
  84         sys.exit (0)
  85
  86 class FatalConversionError:
  87         pass
  88
  89 conversions = []
  90
  91 def show_rules (file):
  92         for x in conversions:
  93                 file.write  ('%s: %s\n' % (tup_to_str (x[0]), x[2]))
  94
  95 ############################
  96
  97 if 1:                                   # need new a namespace
  98         def conv (lines):
  99                 found =0
 100                 for x in lines:
 101                         if regex.search ('\\\\octave', x) <> -1:
 102                                 found = 1
 103                                 break
 104                 if found:
 105                         sys.stderr.write ('\nNot smart enough to convert \\octave\n')
 106                         raise FatalConversionError()
 107                 return lines
 108
 109
 110         conversions.append (
 111                 ((0,1,19), conv, 'deprecated \\octave; can\'t convert automatically'))
 112
 113
 114 if 1:                                   # need new a namespace
 115         def conv (lines):
 116                 newlines = []
 117                 for x in lines:
 118                         x = regsub.gsub ('\\\\textstyle\\([^;]+\\);',
 119                                          '\\\\property Lyrics . textstyle = \\1', x)
 120                         x = regsub.gsub ('\\\\key\\([^;]+\\);', '\\\\accidentals \\1;', x)
 121                         newlines.append (x)
 122                 return newlines
 123
 124
 125         conversions.append (
 126                 ((0,1,20), conv, 'deprecated \\textstyle, new \key syntax'))
 127
 128
 129 if 1:                                   # need new a namespace
 130         def conv (lines):
 131                 newlines = []
 132                 for x in lines:
 133                         x = regsub.gsub ('\\\\musical_pitch',
 134                                          '\\\\musicalpitch',x)
 135                         x = regsub.gsub ('\\\\meter',
 136                                          '\\\\time',x)
 137                         newlines.append (x)
 138                 return newlines
 139
 140
 141         conversions.append (
 142                 ((0,1,21), conv, '\\musical_pitch -> \\musicalpitch, '+
 143                  '\\meter -> \\time\n'))
 144
 145 if 1:                                   # need new a namespace
 146         def conv (lines):
 147                 return lines
 148
 149         conversions.append (
 150                 ((1,0,0), conv, '0.1.21 -> 1.0.0 '))
 151
 152
 153
 154 ############################
 155
 156 def get_conversions (from_version, to_version):
 157         def version_b (v, f = from_version, t = to_version):
 158                 return version_cmp (v[0], f) > 0 and version_cmp (v[0], t) <= 0
 159         return filter (version_b, conversions)
 160
 161
 162 def latest_version ():
 163         return conversions[-1][0]
 164
 165 def do_conversion (infile, from_version, outfile, to_version):
 166
 167         conv_list = get_conversions (from_version, to_version)
 168
 169         sys.stderr.write ('Applying conversions: ')
 170         lines = infile.readlines();
 171         last_conversion = ()
 172         try:
 173                 for x in conv_list:
 174                         sys.stderr.write (tup_to_str (x[0])  + ', ')
 175                         lines = x[1] (lines)
 176                         last_conversion = x[0]
 177
 178                 sys.stderr.write ('\n')
 179
 180         except FatalConversionError:
 181                 sys.stderr.write ('Error while converting; I won\'t convert any further')
 182
 183         for x in lines:
 184                 if last_conversion:
 185                         x = regsub.sub (mudela_version_re_str, '\\version \"%s\"' % tup_to_str (last_conversion), x)
 186                 outfile.write(x)
 187
 188 class UnknownVersion:
 189         pass
 190
 191 def do_one_file (infile_name):
 192         outfile_name = ''
 193         if __main__.edit:
 194                 outfile_name = infile_name + '.NEW'
 195         elif __main__.outfile_name:
 196                 outfile_name = __main__.outfile_name
 197
 198         if __main__.from_version:
 199                 from_version = __main__.from_version
 200         else:
 201                 guess = guess_mudela_version (infile_name)
 202                 if not guess:
 203                         raise UnknownVersion()
 204                 from_version = str_to_tuple (guess)
 205
 206         if __main__.to_version:
 207                 to_version = __main__.to_version
 208         else:
 209                 to_version = latest_version ()
 210
 211
 212         if infile_name:
 213                 infile = open (infile_name,'r')
 214         else:
 215                 infile = sys.stdin
 216
 217         if outfile_name:
 218                 outfile =  open (outfile_name, 'w')
 219         else:
 220                 outfile = sys.stdout
 221
 222
 223         do_conversion (infile, from_version, outfile, to_version)
 224
 225         if __main__.edit:
 226                 os.rename (infile_name, infile_name + '~')
 227                 os.rename (infile_name + '.NEW', infile_name)
 228
 229
 230 edit = 0
 231 to_version = ()
 232 from_version = ()
 233 outfile_name = ''
 234
 235 identify ()
 236 (options, files) = getopt.getopt (
 237         sys.argv[1:], 'f:t:seh', ['show-rules', 'help', 'edit', 'from', 'to'])
 238
 239 for opt in options:
 240         o = opt[0]
 241         a = opt[1]
 242         if o== '--help' or o == '-h':
 243                 help ()
 244         elif o== '--from' or o=='-f':
 245                 from_version = str_to_tuple (a)
 246         elif o== '--to' or o=='-t':
 247                 to_version = str_to_tuple (a)
 248         elif o== '--edit' or o == '-e':
 249                 edit = 1
 250         elif o== '--show-rules' or o == '-s':
 251                 show_rules (sys.stdout)
 252                 sys.exit(0)
 253         else:
 254                 print o
 255                 raise getopt.error
 256
 257
 258 for f in files:
 259         if f == '-':
 260                 f = ''
 261         try:
 262                 do_one_file (f)
 263         except UnknownVersion:
 264                 pass