python/book_snippets.py

   1 # -*- coding: utf-8 -*-
   2
   3 import book_base as BookBase
   4 import lilylib as ly
   5 global _;_=ly._
   6 import re
   7 import os
   8 import copy
   9 # TODO: We are using os.popen3, which has been deprecated since python 2.6. The
  10 # suggested replacement is the Popen function of the subprocess module.
  11 # Unfortunately, on windows this needs the msvcrt module, which doesn't seem
  12 # to be available in GUB?!?!?!
  13 # from subprocess import Popen, PIPE
  14
  15 progress = ly.progress
  16 warning = ly.warning
  17 error = ly.error
  18
  19
  20
  21
  22
  23 ####################################################################
  24 # Snippet option handling
  25 ####################################################################
  26
  27
  28 #
  29 # Is this pythonic?  Personally, I find this rather #define-nesque. --hwn
  30 #
  31 # Global definitions:
  32 ADDVERSION = 'addversion'
  33 AFTER = 'after'
  34 ALT = 'alt'
  35 BEFORE = 'before'
  36 DOCTITLE = 'doctitle'
  37 EXAMPLEINDENT = 'exampleindent'
  38 FILENAME = 'filename'
  39 FILTER = 'filter'
  40 FRAGMENT = 'fragment'
  41 LANG = 'lang'    ## TODO: This is handled nowhere!
  42 LAYOUT = 'layout'
  43 LILYQUOTE = 'lilyquote'
  44 LINE_WIDTH = 'line-width'
  45 NOFRAGMENT = 'nofragment'
  46 NOGETTEXT = 'nogettext'
  47 NOINDENT = 'noindent'
  48 NOQUOTE = 'noquote'
  49 INDENT = 'indent'
  50 NORAGGED_RIGHT = 'noragged-right'
  51 NOTES = 'body'
  52 NOTIME = 'notime'
  53 OUTPUT = 'output'
  54 OUTPUTIMAGE = 'outputimage'
  55 PAPER = 'paper'
  56 PAPERSIZE = 'papersize'
  57 PREAMBLE = 'preamble'
  58 PRINTFILENAME = 'printfilename'
  59 QUOTE = 'quote'
  60 RAGGED_RIGHT = 'ragged-right'
  61 RELATIVE = 'relative'
  62 STAFFSIZE = 'staffsize'
  63 TEXIDOC = 'texidoc'
  64 VERBATIM = 'verbatim'
  65 VERSION = 'lilypondversion'
  66
  67
  68
  69 # NOTIME and NOGETTEXT have no opposite so they aren't part of this
  70 # dictionary.
  71 # NOQUOTE is used internally only.
  72 no_options = {
  73     NOFRAGMENT: FRAGMENT,
  74     NOINDENT: INDENT,
  75 }
  76
  77 # Options that have no impact on processing by lilypond (or --process
  78 # argument)
  79 PROCESSING_INDEPENDENT_OPTIONS = (
  80     ALT, NOGETTEXT, VERBATIM, ADDVERSION,
  81     TEXIDOC, DOCTITLE, VERSION, PRINTFILENAME)
  82
  83
  84
  85 # Options without a pattern in snippet_options.
  86 simple_options = [
  87     EXAMPLEINDENT,
  88     FRAGMENT,
  89     NOFRAGMENT,
  90     NOGETTEXT,
  91     NOINDENT,
  92     PRINTFILENAME,
  93     DOCTITLE,
  94     TEXIDOC,
  95     LANG,
  96     VERBATIM,
  97     FILENAME,
  98     ALT,
  99     ADDVERSION
 100 ]
 101
 102
 103
 104 ####################################################################
 105 # LilyPond templates for the snippets
 106 ####################################################################
 107
 108 snippet_options = {
 109     ##
 110     NOTES: {
 111         RELATIVE: r'''\relative c%(relative_quotes)s''',
 112     },
 113
 114     ##
 115     PAPER: {
 116         PAPERSIZE: r'''#(set-paper-size "%(papersize)s")''',
 117         INDENT: r'''indent = %(indent)s''',
 118         LINE_WIDTH: r'''line-width = %(line-width)s''',
 119         QUOTE: r'''line-width = %(line-width)s - 2.0 * %(exampleindent)s''',
 120         LILYQUOTE: r'''line-width = %(line-width)s - 2.0 * %(exampleindent)s''',
 121         RAGGED_RIGHT: r'''ragged-right = ##t''',
 122         NORAGGED_RIGHT: r'''ragged-right = ##f''',
 123     },
 124
 125     ##
 126     LAYOUT: {
 127         NOTIME: r'''
 128  \context {
 129    \Score
 130    timing = ##f
 131  }
 132  \context {
 133    \Staff
 134    \remove "Time_signature_engraver"
 135  }''',
 136     },
 137
 138     ##
 139     PREAMBLE: {
 140         STAFFSIZE: r'''#(set-global-staff-size %(staffsize)s)''',
 141     },
 142 }
 143
 144
 145
 146
 147
 148 FRAGMENT_LY = r'''
 149 %(notes_string)s
 150 {
 151
 152
 153 %% ****************************************************************
 154 %% ly snippet contents follows:
 155 %% ****************************************************************
 156 %(code)s
 157
 158
 159 %% ****************************************************************
 160 %% end ly snippet
 161 %% ****************************************************************
 162 }
 163 '''
 164
 165 def classic_lilypond_book_compatibility (key, value):
 166     if key == 'singleline' and value == None:
 167         return (RAGGED_RIGHT, None)
 168
 169     m = re.search ('relative\s*([-0-9])', key)
 170     if m:
 171         return ('relative', m.group (1))
 172
 173     m = re.match ('([0-9]+)pt', key)
 174     if m:
 175         return ('staffsize', m.group (1))
 176
 177     if key == 'indent' or key == 'line-width':
 178         m = re.match ('([-.0-9]+)(cm|in|mm|pt|staffspace)', value)
 179         if m:
 180             f = float (m.group (1))
 181             return (key, '%f\\%s' % (f, m.group (2)))
 182
 183     return (None, None)
 184
 185
 186 PREAMBLE_LY = '''%%%% Generated by %(program_name)s
 187 %%%% Options: [%(option_string)s]
 188 \\include "lilypond-book-preamble.ly"
 189
 190
 191 %% ****************************************************************
 192 %% Start cut-&-pastable-section
 193 %% ****************************************************************
 194
 195 %(preamble_string)s
 196
 197 \paper {
 198   %(paper_string)s
 199   force-assignment = #""
 200   line-width = #(- line-width (* mm  %(padding_mm)f))
 201 }
 202
 203 \layout {
 204   %(layout_string)s
 205 }
 206
 207 %(safe_mode_string)s
 208 '''
 209
 210
 211 FULL_LY = '''
 212
 213
 214 %% ****************************************************************
 215 %% ly snippet:
 216 %% ****************************************************************
 217 %(code)s
 218
 219
 220 %% ****************************************************************
 221 %% end ly snippet
 222 %% ****************************************************************
 223 '''
 224
 225
 226
 227
 228
 229
 230
 231
 232 ####################################################################
 233 # Helper functions
 234 ####################################################################
 235
 236 def ps_page_count (ps_name):
 237     header = file (ps_name).read (1024)
 238     m = re.search ('\n%%Pages: ([0-9]+)', header)
 239     if m:
 240         return int (m.group (1))
 241     return 0
 242
 243 ly_var_def_re = re.compile (r'^([a-zA-Z]+)[\t ]*=', re.M)
 244 ly_comment_re = re.compile (r'(%+[\t ]*)(.*)$', re.M)
 245 ly_context_id_re = re.compile ('\\\\(?:new|context)\\s+(?:[a-zA-Z]*?(?:Staff\
 246 (?:Group)?|Voice|FiguredBass|FretBoards|Names|Devnull))\\s+=\\s+"?([a-zA-Z]+)"?\\s+')
 247
 248 def ly_comment_gettext (t, m):
 249     return m.group (1) + t (m.group (2))
 250
 251
 252
 253 class CompileError(Exception):
 254   pass
 255
 256
 257
 258 ####################################################################
 259 # Snippet classes
 260 ####################################################################
 261
 262 class Chunk:
 263     def replacement_text (self):
 264         return ''
 265
 266     def filter_text (self):
 267         return self.replacement_text ()
 268
 269     def is_plain (self):
 270         return False
 271
 272 class Substring (Chunk):
 273     """A string that does not require extra memory."""
 274     def __init__ (self, source, start, end, line_number):
 275         self.source = source
 276         self.start = start
 277         self.end = end
 278         self.line_number = line_number
 279         self.override_text = None
 280
 281     def is_plain (self):
 282         return True
 283
 284     def replacement_text (self):
 285         if self.override_text:
 286             return self.override_text
 287         else:
 288             return self.source[self.start:self.end]
 289
 290
 291
 292 class Snippet (Chunk):
 293     def __init__ (self, type, match, formatter, line_number, global_options):
 294         self.type = type
 295         self.match = match
 296         self.checksum = 0
 297         self.option_dict = {}
 298         self.formatter = formatter
 299         self.line_number = line_number
 300         self.global_options = global_options
 301         self.replacements = {'program_version': ly.program_version,
 302                              'program_name': ly.program_name}
 303
 304     # return a shallow copy of the replacements, so the caller can modify
 305     # it locally without interfering with other snippet operations
 306     def get_replacements (self):
 307         return copy.copy (self.replacements)
 308
 309     def replacement_text (self):
 310         return self.match.group ('match')
 311
 312     def substring (self, s):
 313         return self.match.group (s)
 314
 315     def __repr__ (self):
 316         return `self.__class__` + ' type = ' + self.type
 317
 318
 319
 320 class IncludeSnippet (Snippet):
 321     def processed_filename (self):
 322         f = self.substring ('filename')
 323         return os.path.splitext (f)[0] + self.formatter.default_extension
 324
 325     def replacement_text (self):
 326         s = self.match.group ('match')
 327         f = self.substring ('filename')
 328         return re.sub (f, self.processed_filename (), s)
 329
 330
 331
 332 class LilypondSnippet (Snippet):
 333     def __init__ (self, type, match, formatter, line_number, global_options):
 334         Snippet.__init__ (self, type, match, formatter, line_number, global_options)
 335         os = match.group ('options')
 336         self.do_options (os, self.type)
 337
 338
 339     def snippet_options (self):
 340         return [];
 341
 342     def verb_ly_gettext (self, s):
 343         lang = self.formatter.document_language
 344         if not lang:
 345             return s
 346         try:
 347             t = langdefs.translation[lang]
 348         except:
 349             return s
 350
 351         s = ly_comment_re.sub (lambda m: ly_comment_gettext (t, m), s)
 352
 353         if langdefs.LANGDICT[lang].enable_ly_identifier_l10n:
 354             for v in ly_var_def_re.findall (s):
 355                 s = re.sub (r"(?m)(?<!\\clef)(^|[' \\#])%s([^a-zA-Z])" % v,
 356                             "\\1" + t (v) + "\\2",
 357                             s)
 358             for id in ly_context_id_re.findall (s):
 359                 s = re.sub (r'(\s+|")%s(\s+|")' % id,
 360                             "\\1" + t (id) + "\\2",
 361                             s)
 362         return s
 363
 364     def verb_ly (self):
 365         verb_text = self.substring ('code')
 366         if not NOGETTEXT in self.option_dict:
 367             verb_text = self.verb_ly_gettext (verb_text)
 368         if not verb_text.endswith ('\n'):
 369             verb_text += '\n'
 370         return verb_text
 371
 372     def ly (self):
 373         contents = self.substring ('code')
 374         return ('\\sourcefileline %d\n%s'
 375                 % (self.line_number - 1, contents))
 376
 377     def full_ly (self):
 378         s = self.ly ()
 379         if s:
 380             return self.compose_ly (s)
 381         return ''
 382
 383     def split_options (self, option_string):
 384         return self.formatter.split_snippet_options (option_string);
 385
 386     def do_options (self, option_string, type):
 387         self.option_dict = {}
 388
 389         options = self.split_options (option_string)
 390
 391         for option in options:
 392             if '=' in option:
 393                 (key, value) = re.split ('\s*=\s*', option)
 394                 self.option_dict[key] = value
 395             else:
 396                 if option in no_options:
 397                     if no_options[option] in self.option_dict:
 398                         del self.option_dict[no_options[option]]
 399                 else:
 400                     self.option_dict[option] = None
 401
 402
 403         # If LINE_WIDTH is used without parameter, set it to default.
 404         has_line_width = self.option_dict.has_key (LINE_WIDTH)
 405         if has_line_width and self.option_dict[LINE_WIDTH] == None:
 406             has_line_width = False
 407             del self.option_dict[LINE_WIDTH]
 408
 409         # TODO: Can't we do that more efficiently (built-in python func?)
 410         for k in self.formatter.default_snippet_options:
 411             if k not in self.option_dict:
 412                 self.option_dict[k] = self.formatter.default_snippet_options[k]
 413
 414         # RELATIVE does not work without FRAGMENT;
 415         # make RELATIVE imply FRAGMENT
 416         has_relative = self.option_dict.has_key (RELATIVE)
 417         if has_relative and not self.option_dict.has_key (FRAGMENT):
 418             self.option_dict[FRAGMENT] = None
 419
 420         if not has_line_width:
 421             if type == 'lilypond' or FRAGMENT in self.option_dict:
 422                 self.option_dict[RAGGED_RIGHT] = None
 423
 424             if type == 'lilypond':
 425                 if LINE_WIDTH in self.option_dict:
 426                     del self.option_dict[LINE_WIDTH]
 427             else:
 428                 if RAGGED_RIGHT in self.option_dict:
 429                     if LINE_WIDTH in self.option_dict:
 430                         del self.option_dict[LINE_WIDTH]
 431
 432             if QUOTE in self.option_dict or type == 'lilypond':
 433                 if LINE_WIDTH in self.option_dict:
 434                     del self.option_dict[LINE_WIDTH]
 435
 436         if not INDENT in self.option_dict:
 437             self.option_dict[INDENT] = '0\\mm'
 438
 439         # Set a default line-width if there is none. We need this, because
 440         # lilypond-book has set left-padding by default and therefore does
 441         # #(define line-width (- line-width (* 3 mm)))
 442         # TODO: Junk this ugly hack if the code gets rewritten to concatenate
 443         # all settings before writing them in the \paper block.
 444         if not LINE_WIDTH in self.option_dict:
 445             if not QUOTE in self.option_dict:
 446                 if not LILYQUOTE in self.option_dict:
 447                     self.option_dict[LINE_WIDTH] = "#(- paper-width \
 448 left-margin-default right-margin-default)"
 449
 450     def get_option_list (self):
 451         if not 'option_list' in self.__dict__:
 452             option_list = []
 453             for (key, value) in self.option_dict.items ():
 454                 if value == None:
 455                     option_list.append (key)
 456                 else:
 457                     option_list.append (key + '=' + value)
 458             option_list.sort ()
 459             self.option_list = option_list
 460         return self.option_list
 461
 462     def compose_ly (self, code):
 463         if FRAGMENT in self.option_dict:
 464             body = FRAGMENT_LY
 465         else:
 466             body = FULL_LY
 467
 468         # Defaults.
 469         relative = 1
 470         override = {}
 471         # The original concept of the `exampleindent' option is broken.
 472         # It is not possible to get a sane value for @exampleindent at all
 473         # without processing the document itself.  Saying
 474         #
 475         #   @exampleindent 0
 476         #   @example
 477         #   ...
 478         #   @end example
 479         #   @exampleindent 5
 480         #
 481         # causes ugly results with the DVI backend of texinfo since the
 482         # default value for @exampleindent isn't 5em but 0.4in (or a smaller
 483         # value).  Executing the above code changes the environment
 484         # indentation to an unknown value because we don't know the amount
 485         # of 1em in advance since it is font-dependent.  Modifying
 486         # @exampleindent in the middle of a document is simply not
 487         # supported within texinfo.
 488         #
 489         # As a consequence, the only function of @exampleindent is now to
 490         # specify the amount of indentation for the `quote' option.
 491         #
 492         # To set @exampleindent locally to zero, we use the @format
 493         # environment for non-quoted snippets.
 494         override[EXAMPLEINDENT] = r'0.4\in'
 495         override[LINE_WIDTH] = '5\\in' # = texinfo_line_widths['@smallbook']
 496         override.update (self.formatter.default_snippet_options)
 497
 498         option_list = []
 499         for option in self.get_option_list ():
 500             for name in PROCESSING_INDEPENDENT_OPTIONS:
 501                 if option.startswith (name):
 502                     break
 503             else:
 504                 option_list.append (option)
 505         option_string = ','.join (option_list)
 506         compose_dict = {}
 507         compose_types = [NOTES, PREAMBLE, LAYOUT, PAPER]
 508         for a in compose_types:
 509             compose_dict[a] = []
 510
 511         option_names = self.option_dict.keys ()
 512         option_names.sort ()
 513         for key in option_names:
 514             value = self.option_dict[key]
 515             (c_key, c_value) = classic_lilypond_book_compatibility (key, value)
 516             if c_key:
 517                 if c_value:
 518                     warning (
 519                         _ ("deprecated ly-option used: %s=%s") % (key, value))
 520                     warning (
 521                         _ ("compatibility mode translation: %s=%s") % (c_key, c_value))
 522                 else:
 523                     warning (
 524                         _ ("deprecated ly-option used: %s") % key)
 525                     warning (
 526                         _ ("compatibility mode translation: %s") % c_key)
 527
 528                 (key, value) = (c_key, c_value)
 529
 530             if value:
 531                 override[key] = value
 532             else:
 533                 if not override.has_key (key):
 534                     override[key] = None
 535
 536             found = 0
 537             for typ in compose_types:
 538                 if snippet_options[typ].has_key (key):
 539                     compose_dict[typ].append (snippet_options[typ][key])
 540                     found = 1
 541                     break
 542
 543             if not found and key not in simple_options and key not in self.snippet_options ():
 544                 warning (_ ("ignoring unknown ly option: %s") % key)
 545
 546         # URGS
 547         if RELATIVE in override and override[RELATIVE]:
 548             relative = int (override[RELATIVE])
 549
 550         relative_quotes = ''
 551
 552         # 1 = central C
 553         if relative < 0:
 554             relative_quotes += ',' * (- relative)
 555         elif relative > 0:
 556             relative_quotes += "'" * relative
 557
 558         # put paper-size first, if it exists
 559         for i,elem in enumerate(compose_dict[PAPER]):
 560             if elem.startswith("#(set-paper-size"):
 561                 compose_dict[PAPER].insert(0, compose_dict[PAPER].pop(i))
 562                 break
 563
 564         paper_string = '\n  '.join (compose_dict[PAPER]) % override
 565         layout_string = '\n  '.join (compose_dict[LAYOUT]) % override
 566         notes_string = '\n  '.join (compose_dict[NOTES]) % vars ()
 567         preamble_string = '\n  '.join (compose_dict[PREAMBLE]) % override
 568         padding_mm = self.global_options.padding_mm
 569         if self.global_options.safe_mode:
 570             safe_mode_string = "#(ly:set-option 'safe #t)"
 571         else:
 572             safe_mode_string = ""
 573
 574         d = globals().copy()
 575         d.update (locals())
 576         d.update (self.global_options.information)
 577         return (PREAMBLE_LY + body) % d
 578
 579     def get_checksum (self):
 580         if not self.checksum:
 581             # Work-around for md5 module deprecation warning in python 2.5+:
 582             try:
 583                 from hashlib import md5
 584             except ImportError:
 585                 from md5 import md5
 586
 587             # We only want to calculate the hash based on the snippet
 588             # code plus fragment options relevant to processing by
 589             # lilypond, not the snippet + preamble
 590             hash = md5 (self.relevant_contents (self.ly ()))
 591             for option in self.get_option_list ():
 592                 for name in PROCESSING_INDEPENDENT_OPTIONS:
 593                     if option.startswith (name):
 594                         break
 595                 else:
 596                     hash.update (option)
 597
 598             ## let's not create too long names.
 599             self.checksum = hash.hexdigest ()[:10]
 600
 601         return self.checksum
 602
 603     def basename (self):
 604         cs = self.get_checksum ()
 605         name = '%s/lily-%s' % (cs[:2], cs[2:])
 606         return name
 607
 608     final_basename = basename
 609
 610     def write_ly (self):
 611         base = self.basename ()
 612         path = os.path.join (self.global_options.lily_output_dir, base)
 613         directory = os.path.split(path)[0]
 614         if not os.path.isdir (directory):
 615             os.makedirs (directory)
 616         filename = path + '.ly'
 617         if os.path.exists (filename):
 618             existing = open (filename, 'r').read ()
 619
 620             if self.relevant_contents (existing) != self.relevant_contents (self.full_ly ()):
 621                 warning ("%s: duplicate filename but different contents of orginal file,\n\
 622 printing diff against existing file." % filename)
 623                 ly.stderr_write (self.filter_pipe (self.full_ly (), 'diff -u %s -' % filename))
 624         else:
 625             out = file (filename, 'w')
 626             out.write (self.full_ly ())
 627             file (path + '.txt', 'w').write ('image of music')
 628
 629     def relevant_contents (self, ly):
 630         return re.sub (r'\\(version|sourcefileline|sourcefilename)[^\n]*\n', '', ly)
 631
 632     def link_all_output_files (self, output_dir, output_dir_files, destination):
 633         existing, missing = self.all_output_files (output_dir, output_dir_files)
 634         if missing:
 635             print '\nMissing', missing
 636             raise CompileError(self.basename())
 637         for name in existing:
 638             if (self.global_options.use_source_file_names
 639                 and isinstance (self, LilypondFileSnippet)):
 640                 base, ext = os.path.splitext (name)
 641                 components = base.split ('-')
 642                 # ugh, assume filenames with prefix with one dash (lily-xxxx)
 643                 if len (components) > 2:
 644                     base_suffix = '-' + components[-1]
 645                 else:
 646                     base_suffix = ''
 647                 final_name = self.final_basename () + base_suffix + ext
 648             else:
 649                 final_name = name
 650             try:
 651                 os.unlink (os.path.join (destination, final_name))
 652             except OSError:
 653                 pass
 654
 655             src = os.path.join (output_dir, name)
 656             dst = os.path.join (destination, final_name)
 657             dst_path = os.path.split(dst)[0]
 658             if not os.path.isdir (dst_path):
 659                 os.makedirs (dst_path)
 660             os.link (src, dst)
 661
 662
 663     def all_output_files (self, output_dir, output_dir_files):
 664         """Return all files generated in lily_output_dir, a set.
 665
 666         output_dir_files is the list of files in the output directory.
 667         """
 668         result = set ()
 669         missing = set ()
 670         base = self.basename()
 671         full = os.path.join (output_dir, base)
 672         def consider_file (name):
 673             if name in output_dir_files:
 674                 result.add (name)
 675
 676         def require_file (name):
 677             if name in output_dir_files:
 678                 result.add (name)
 679             else:
 680                 missing.add (name)
 681
 682         # UGH - junk self.global_options
 683         skip_lily = self.global_options.skip_lilypond_run
 684         for required in [base + '.ly',
 685                          base + '.txt']:
 686             require_file (required)
 687         if not skip_lily:
 688             require_file (base + '-systems.count')
 689
 690         if 'ddump-profile' in self.global_options.process_cmd:
 691             require_file (base + '.profile')
 692         if 'dseparate-log-file' in self.global_options.process_cmd:
 693             require_file (base + '.log')
 694
 695         map (consider_file, [base + '.tex',
 696                              base + '.eps',
 697                              base + '.texidoc',
 698                              base + '.doctitle',
 699                              base + '-systems.texi',
 700                              base + '-systems.tex',
 701                              base + '-systems.pdftexi'])
 702         if self.formatter.document_language:
 703             map (consider_file,
 704                  [base + '.texidoc' + self.formatter.document_language,
 705                   base + '.doctitle' + self.formatter.document_language])
 706
 707         required_files = self.formatter.required_files (self, base, full, result)
 708         for f in required_files:
 709             require_file (f)
 710
 711         system_count = 0
 712         if not skip_lily and not missing:
 713             system_count = int(file (full + '-systems.count').read())
 714
 715         for number in range(1, system_count + 1):
 716             systemfile = '%s-%d' % (base, number)
 717             require_file (systemfile + '.eps')
 718             consider_file (systemfile + '.pdf')
 719
 720             # We can't require signatures, since books and toplevel
 721             # markups do not output a signature.
 722             if 'ddump-signature' in self.global_options.process_cmd:
 723                 consider_file (systemfile + '.signature')
 724
 725
 726         return (result, missing)
 727
 728     def is_outdated (self, output_dir, current_files):
 729         found, missing = self.all_output_files (output_dir, current_files)
 730         return missing
 731
 732     def filter_pipe (self, input, cmd):
 733         """Pass input through cmd, and return the result."""
 734
 735         if self.global_options.verbose:
 736             progress (_ ("Opening filter `%s'\n") % cmd)
 737
 738         # TODO: Use Popen once we resolve the problem with msvcrt in Windows:
 739         (stdin, stdout, stderr) = os.popen3 (cmd)
 740         # p = Popen(cmd, shell=True, stdin=PIPE, stdout=PIPE, stderr=PIPE, close_fds=True)
 741         # (stdin, stdout, stderr) = (p.stdin, p.stdout, p.stderr)
 742         stdin.write (input)
 743         status = stdin.close ()
 744
 745         if not status:
 746             status = 0
 747             output = stdout.read ()
 748             status = stdout.close ()
 749             error = stderr.read ()
 750
 751         if not status:
 752             status = 0
 753         signal = 0x0f & status
 754         if status or (not output and error):
 755             exit_status = status >> 8
 756             ly.error (_ ("`%s' failed (%d)") % (cmd, exit_status))
 757             ly.error (_ ("The error log is as follows:"))
 758             ly.stderr_write (error)
 759             ly.stderr_write (stderr.read ())
 760             exit (status)
 761
 762         if self.global_options.verbose:
 763             progress ('\n')
 764
 765         return output
 766
 767     def get_snippet_code (self):
 768         return self.substring ('code');
 769
 770     def filter_text (self):
 771         """Run snippet bodies through a command (say: convert-ly).
 772
 773         This functionality is rarely used, and this code must have bitrot.
 774         """
 775         code = self.get_snippet_code ();
 776         s = self.filter_pipe (code, self.global_options.filter_cmd)
 777         d = {
 778             'code': s,
 779             'options': self.match.group ('options')
 780         }
 781         return self.formatter.output_simple_replacements (FILTER, d)
 782
 783     def replacement_text (self):
 784         base = self.final_basename ()
 785         return self.formatter.snippet_output (base, self)
 786
 787     def get_images (self):
 788         rep = {'base': self.final_basename ()}
 789
 790         single = '%(base)s.png' % rep
 791         multiple = '%(base)s-page1.png' % rep
 792         images = (single,)
 793         if (os.path.exists (multiple)
 794             and (not os.path.exists (single)
 795                  or (os.stat (multiple)[stat.ST_MTIME]
 796                      > os.stat (single)[stat.ST_MTIME]))):
 797             count = ps_page_count ('%(base)s.eps' % rep)
 798             images = ['%s-page%d.png' % (rep['base'], page) for page in range (1, count+1)]
 799             images = tuple (images)
 800
 801         return images
 802
 803
 804
 805 re_begin_verbatim = re.compile (r'\s+%.*?begin verbatim.*\n*', re.M)
 806 re_end_verbatim = re.compile (r'\s+%.*?end verbatim.*$', re.M)
 807
 808 class LilypondFileSnippet (LilypondSnippet):
 809     def __init__ (self, type, match, formatter, line_number, global_options):
 810         LilypondSnippet.__init__ (self, type, match, formatter, line_number, global_options)
 811         self.contents = file (BookBase.find_file (self.substring ('filename'), global_options.include_path)).read ()
 812
 813     def get_snippet_code (self):
 814         return self.contents;
 815
 816     def verb_ly (self):
 817         s = self.contents
 818         s = re_begin_verbatim.split (s)[-1]
 819         s = re_end_verbatim.split (s)[0]
 820         if not NOGETTEXT in self.option_dict:
 821             s = self.verb_ly_gettext (s)
 822         if not s.endswith ('\n'):
 823             s += '\n'
 824         return s
 825
 826     def ly (self):
 827         name = self.substring ('filename')
 828         return ('\\sourcefilename \"%s\"\n\\sourcefileline 0\n%s'
 829                 % (name, self.contents))
 830
 831     def final_basename (self):
 832         if self.global_options.use_source_file_names:
 833             base = os.path.splitext (os.path.basename (self.substring ('filename')))[0]
 834             return base
 835         else:
 836             return self.basename ()
 837
 838
 839 class LilyPondVersionString (Snippet):
 840     """A string that does not require extra memory."""
 841     def __init__ (self, type, match, formatter, line_number, global_options):
 842         Snippet.__init__ (self, type, match, formatter, line_number, global_options)
 843
 844     def replacement_text (self):
 845         return self.formatter.output_simple (self.type, self)
 846
 847
 848 snippet_type_to_class = {
 849     'lilypond_file': LilypondFileSnippet,
 850     'lilypond_block': LilypondSnippet,
 851     'lilypond': LilypondSnippet,
 852     'include': IncludeSnippet,
 853     'lilypondversion': LilyPondVersionString,
 854 }