summaryrefslogtreecommitdiff
path: root/macros/musixtex/scripts/musixtex.lua
blob: b568bb890309d275f650d7ea10e33175f030357f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
#!/usr/bin/env texlua  

VERSION = "0.23b"

--[[
     musixtex.lua: processes MusiXTeX files using xml2pmx and/or prepmx and/or pmxab 
     and/or autosp as pre-processors (and deletes intermediate files)

     (c) Copyright 2011-2021 Bob Tennent rdt@cs.queensu.ca
                             and Dirk Laurie dirk.laurie@gmail.com

     This program is free software; you can redistribute it and/or modify it
     under the terms of the GNU General Public License as published by the
     Free Software Foundation; either version 2 of the License, or (at your
     option) any later version.

     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
     Public License for more details.

     You should have received a copy of the GNU General Public License along
     with this program; if not, write to the Free Software Foundation, Inc.,
     51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.

--]]

--[[

  ChangeLog:

     version 0.23b 2020-05-27  RDT
       improve the -h output

     version 0.23a 2020-08-14  RDT
       pmxprep files now deleted by xml2pmx

     version 0.23  2020-05-21 RDT
       added support for xml2pmx pre-preprocessing

     version 0.22  2020-03-20 RDT
       add -X option
       add -version, --version, -help, --help options

     version 0.21  2018-07-27  RDT
       add -P option.

     version 0.20  2018-06-11  RDT
       remove .mx1 file before tex processing

     version 0.19   2017-12-10 RDT
       Allow non-standard extensions.
       Add -M and -A options.

     version 0.18   2017-06-13 RDT
       Allow autosp to generate .ltx files

     version 0.17a   2017-01-08 RDT
       Added -D option.
       Avoid writing or concatenating a nil value.

     version 0.16e  2016-03-02 DL
       missing version information (caused by batchmode in 0.16c) fixed

     version 0.16d  2016-03-02 RDT
       filename argument in autosp failure message fixed

     version 0.16c  2016-02-24 RDT
       -interaction batchmode for -q
       report_error reports only the first error

     version 0.16b  2016-02-20 DL
       Improved help message as suggested by Bob Tennent.

     version 0.16a  2015-12-30 DL
       Corrects bug in -g option reported by Christian Mondrup.

     version 0.16  2015-12-24 DL
       Versions read from tempfile and written to musixtex.log.

     version 0.15  2015-12-03 DL
       Option -q added, which redirects most screen output into 
       a temporary file. If an error occurs at the TeX stage, processing 
       halts immediately and the tail of the log file is sent to stderr.

     version 0.14  2015-12-01 DL
       Writes `musixtex.log` and deletes other logfiles (except with -i)
       Hierarchy of extensions emphasized in usage() and consistently
         used elsewhere.
       Unknown option-like arguments reported and ignored, not treated
         as filenames
       Warnings and error messages generated by musixtex.lua start with
         respctively `!` and `!!`.

     version 0.13  2015-11-30 RDT 
      Process .mtx and .pmx files (suggested by Dirk Laurie)
      exit_code is now an error count
      Use pmxab exit code to distinguish between errors and warnings

     version 0.12 2015-11-28 RDT
      Process .ltx files, with -l implied

     version 0.11 2015-07-16 RDT
      Automatic autosp preprocessing. 

     version 0.10 2015-04-23 RDT
      Add -a option to preprocess using autosp

     version 0.9 2015-02-13 RDT
      Add an additional latex pass to resolve cross-references.
      Add -e0 option to dvips as given in musixdoc.tex
      Add -x option to call makeindex

     version 0.8 2014-05-18 RDT
      Add -g option

     version 0.7  2013-12-11 RDT
      Add -F fmt option

     version 0.6  2012-09-14 RDT
      Add -1 (one-pass [pdf][la]tex processing) option.

     version 0.5  2011-11-28 RDT
      Add -i (retain intermediate files) option.

     version 0.4  2011-04-30 RDT
       Allow multiple filenames (and options).
       Add -f (default) and -l (latex) options.

     version 0.3  2011-04-25 RDT
       Add -d (dvipdfm)  and -s (stop at dvi) options.

     version 0.2  2011-04-21 RDT
       Allow basename.tex as filename.
       Add -p option for pdfetex processing.
       Add standard -v -h options.
--]]
local orig_print = print

function usage()
  orig_print 
[[
Usage:  [texlua] musixtex.lua { option | basename[ .xml | .mtx | .pmx | .aspc | .tex | .ltx] } ...
        When no extension is given, extensions are tried in the above order 
        until a source file is found. Preprocessing goes 
           .xml - .pmx - .tex
           .mtx - .pmx - .tex
           .pmx - .tex
           .aspc - .tex 
        with the entry point determined by the filename extension.
        The normal route after preprocessing goes .tex - .dvi - .ps - .pdf, 
        but shorter routes are also available; see the options. 
        The default 3-pass processing route for .tex files is 
            etex - musixflx - etex.
        .ltx files, possibly after autosp preprocessing, are treated as latex 
        source and processed by latex (or pdflatex) rather than etex.
Options: -v, --version  version
         -h, --help   help
         -l  latex source; implied by .ltx extension
         -p  direct tex-pdf (pdftex etc)
         -F fmt  use fmt as the TeX processor
         -d  tex-dvi-pdf (using dvipdfm if -D not used)
         -D dvixx  use dvixx as the dvi processor
         -P ps2pdfxx  use ps2pdfxx as the Postscript processor
         -c  preprocess pmx file using pmxchords
         -m  stop at pmx
         -M prepmxx  use prepmxx as the mtx preprocessor
         -A autospx  use autospx as the aspc preprocessor
         -X pmxabx  use pmxabx as the pmx preprocessor
         -L xmlx use xmlx as the xml preprocessor
         -t  stop at tex/mid
         -s  stop at dvi
         -g  stop at ps
         -i  retain intermediate and log files
         -q  quiet mode (redirect screen logs, write summary on musixtex.log)
         -1  one-pass [pdf][la]tex processing
         -x  run makeindex
         -f  restore default processing
Four TeX engines are available via the -l and -p options. 
    etex      default
    latex     -l
    pdfetex   -p
    pdflatex  -l -p
If the -F option is used, options -l and -p need to be set if the engine 
name does not contain "latex" and "pdf" respectively. For example, the 
above four engines can be replaced by:
  -F "luatex --output-format=dvi" 
  -F "lualatex --output-format=dvi"
  -F "luatex" -p
  -F "lualatex" -p
]]
end

function whoami ()
  print("This is musixtex.lua version ".. VERSION .. ".")
end

function exists (filename, nolog)
  local f = io.open(filename, "r")
  if f then
    f:close()
    if not nolog then musixlog:write("Processing " .. filename,'\n' ) end
    return true
  else
    return false
  end
end

--   System commands for the various programs are mostly
--   set to nil if the step is to be omitted, which can be
--   tested by a simple "if" statement.
-- Exceptions:
--    'tex' is the command for processing a TeX file, but it is important
--       to know whether the user has explicitly specified an option that
--       affects this choice, in which case the automatic selection of the
--       command is restricted or disabled.
--         force_engine  "use the command provided"
--         override   records  when 'l' and/or 'p' options are in effect
--    'dvi' is the command for processing a DVI file, but there are two
--       reasons for not needing it and it is important for the automatic
--       selection of a TeX engine to know which is in effect. This is
--       possible by exploiting the the fact that Lua has two false values.
--         dvi == nil    "do not produce a DVI file" (but maybe PDF)
--         dvi == false  "do not process the DVI file" (but stop after TeX)

local dvips = "dvips -e0"  
-- option -e0 suppresses dvips "feature" of adjusting location to align 
-- characters in words of text 

function defaults()
  xml2pmx = "xml2pmx"
  prepmx = "prepmx"
  pmx = "pmxab"
  autosp = "autosp"
  tex = "etex"
  musixflx = "musixflx"
  dvi = dvips
  ps2pdf = "ps2pdf"
  cleanup = true  -- clean up intermediate and log files
  index = false
  latex = false 
  force_engine = false -- indicates whether -F is specified
  override = ""   
  passes = 2
  quiet = ""     -- set by "-q"
end  
  
------------------------------------------------------------------------ 

if #arg == 0 then
  whoami()
  usage()
  os.exit(0)
end

-- Logging on `musixtex.log` everything that is printed, all os calls,
--   and warnings from other log files.

musixlog = io.open("musixtex.log","w")
if not musixlog then 
   print"!! Can't open files for writing in current directory, aborting"
   os.exit(1)
end

------------------------------------------------------------------------

print = function(...)
   orig_print(...)
   musixlog:write(...,"\n") -- only the first argument gets written!
end

local orig_remove = os.remove
remove = function(filename)  
  if exists(filename,"nolog") then
    musixlog:write("  removing ",filename,"\n") 
    return orig_remove(filename)
  end
end

local orig_execute = os.execute
execute = function(command)
  musixlog:write("  ",command,"\n") 
  return orig_execute(command .. quiet)
end

function report_warnings(filename,pattern)
  local log = io.open(filename)
  if not log then
    print("! No file "..filename)
    return
  end
  for line in log:lines() do
    if line:match(pattern) then
      musixlog:write("!  "..line,"\n")
    end
  end
end 

function report_error(filename)
  local log = io.open(filename)
  if not log then
    print("! No file "..filename)
    return
  end
  local trigger = false
  for line in log:lines() do
    if trigger and line:match"^!" then 
      -- report just the first error   
      break
    end
    trigger = trigger or line:match"^!"
    if trigger then
      io.stderr:write("!  "..line,"\n")
    end
  end
end 

function process_option(this_arg)
  if this_arg == "-v" or this_arg == "-version" or this_arg == "--version" then
    os.exit(0)
  elseif this_arg == "-h" or this_arg == "-help" or this_arg == "--help" then 
    usage()
    os.exit(0)
  elseif this_arg == "-l" then 
    latex = true
    override = override .. 'l'
  elseif this_arg == "-p" then
    dvi = nil
    override = override .. 'p'
  elseif this_arg == "-d" then
    dvi = "dvipdfm"; ps2pdf = nil
  elseif this_arg == "-D" then
    narg = narg+1
    dvi = arg[narg]
  elseif this_arg == "-c" then
    pmx = "pmxchords"
  elseif this_arg == "-F" then
    narg = narg+1
    tex = arg[narg]
    force_engine = true
  elseif this_arg == "-s" then
    dvi = false; ps2pdf = nil; protect.dvi = true
  elseif this_arg == "-g" then
    dvi = dvips; ps2pdf = nil; protect.ps = true
  elseif this_arg == "-i" then
    cleanup = false
  elseif this_arg == "-x" then
    index = true
  elseif this_arg == "-1" then
    passes = 1
  elseif this_arg == "-f" then
    defaults()
  elseif this_arg == "-t" then
    tex, dvi, ps2pdf = nil,nil,nil
    protect.tex = true
  elseif this_arg == "-m" then
    pmx, tex, dvi, ps2pdf = nil,nil,nil,nil
    protect.pmx = true
  elseif this_arg == "-M" then
    narg = narg+1
    prepmx = arg[narg]
  elseif this_arg == "-A" then
    narg = narg+1
    autosp = arg[narg]
  elseif this_arg == "-L" then
    narg = narg+1
    xml2pmx = arg[narg]
  elseif this_arg == "-q" then
    if not tempname then
      tempname = tempname or os.tmpname()
      print("Redirecting screen output to "..tempname)
    end
    if dvi == dvips then dvi = dvi .. " -q" end
    quiet = " >> " .. tempname
  elseif this_arg == "-P" then
    narg = narg+1
    ps2pdf = arg[narg]
  elseif this_arg == "-X" then
    narg = narg+1
    pmx = arg[narg]
  else
    print("! Unknown option "..this_arg.." ignored")
  end
end

function find_file(this_arg)
  basename, extension = this_arg:match"(.*)%.(.*)"  
  extensions = {["xml"] = true, ["mtx"] = true, ["pmx"] = true, ["aspc"] = true, ["tex"] = true, ["ltx"] = true}
  if extensions[extension] then
    return basename, extension
  end
  basename, extension  = this_arg, null
  for ext in ("xml,mtx,pmx,aspc,tex,ltx"):gmatch"[^,]+" do
    if exists (basename .. "." .. ext) then
      extension = ext
      break
    end
  end
  if extension == null then
    print("!! No file " .. basename .. ".[xml|mtx|pmx|aspc|tex|ltx]")
    exit_code = exit_code+1
    return
  end
  return basename, extension
end

function preprocess(basename,extension)
  if not (basename and extension) then return end
  if extension == "xml" then
    if execute(xml2pmx .. " " .. basename .. ".xml" .. " " .. basename .. ".pmx" ) == 0 then 
      extension = "pmx"
    else
      print ("!! xml2pmx preprocessing of " .. basename .. ".xml fails.")
      return
    end
  elseif extension == "mtx" then
    if execute(prepmx .. " " .. basename ) == 0 then
      extension = "pmx"
    else
      print ("!! prepmx preprocessing of " .. basename .. ".mtx fails.")
      return
    end
  end 
  if extension == "pmx" then
    local OK = true
    if pmx then 
      local code = execute(pmx .. " " .. basename)
      local pmxaerr = io.open("pmxaerr.dat", "r")
      if (not pmxaerr) then
        OK = false
        print("!! No pmx log file.")
      else
        extension = "tex"
        local linebuf = pmxaerr:read()
        local err = tonumber(linebuf)
        if (code == 0) then
          if err ~=0 then
            print ("!  pmx produced a warning on line "..err..
                " of "..basename..".pmx")
          end
        else
          OK = false
          print ("!! pmx processing of " .. basename .. ".pmx fails.") 
        end
        pmxaerr:close()
      end
    end
    if not OK then 
      exit_code = exit_code+1
      return
    end
  end
  if extension == "aspc" then
    if execute (autosp .. " " .. basename .. ".aspc" ) == 0 then
      if exists ( basename .. ".ltx")
        then extension = "ltx"
        else extension = "tex"
      end
    else
      print ("!! autosp preprocessing of " .. basename .. ".aspc fails.")
      exit_code = exit_code+1
      return
    end       
  end
  return extension
end

function tex_process(tex,basename,extension)
  if not (extension == "tex" or extension == "ltx") or not tex then return end
  remove(basename .. ".mx1")
  remove(basename .. ".mx2")
  local filename = basename .. "." ..extension
-- .ltx extension re-selects engine only for the current file, and only 
-- if default processing is plain TeX
  local latex = latex
  if extension == "ltx" then
    if not force_engine and not latex then
      if dvi then tex = "latex" else tex = "pdflatex" end
    end
    latex = true
  end
  if quiet ~= "" then
    tex = tex .. " -interaction batchmode"
  end
  local OK = (execute(tex .. " " .. filename) == 0)
  if passes ~= 1 then 
    OK = OK and (execute(musixflx .. " " .. basename) == 0)
      and (execute(tex .. " " .. filename) == 0)
    if latex and index then
      OK = OK and (execute("makeindex -q " .. basename) == 0)
              and (execute(tex .. " " .. filename) == 0)
      if exists (basename .. ".toc","nolog") then
        -- an extra line for the index will have been added
        OK = OK and (execute(tex .. " " .. filename) == 0)
        -- there is a tiny possibility that the extra line for the index
        -- has changed the pagination. If you feel this should not be
        -- ignored, here are the possibilities:
        --   a. Do an extra TeX pass regardless.
        --   b. Provide a user option -4 to force the extra pass.
        --   c. Compare aux files to find out.
      end
    end
  end
  if (quiet ~= "") and not OK then
    report_error(basename..".log")
  end
  if OK and latex then 
    report_warnings(basename..".log","LaTeX.*Warning")
  end
  if dvi then OK = OK and (execute(dvi .. " " .. basename) == 0) end
  if dvi and ps2pdf then
    OK = OK and (execute(ps2pdf .. " " .. basename .. ".ps") == 0)
    if OK then 
      print(basename .. ".pdf generated by " .. ps2pdf .. ".")
    end
  end
  if not OK then
    print("!! Processing of " .. filename .. " fails.\n")
    exit_code = exit_code+1
  end
end

---- Report version information on musixtex.log

--  File names and message signatures to be looked for in a TeX log file.
logtargets =  {
mtxtex = {"mtx%.tex","mtxTeX"},
mtxlatex = {"mtxlatex%.sty","mtxLaTeX"},
pmxtex = {"pmx%.tex","PMX"},
musixtex = {"musixtex%.tex","MusiXTeX"},
musixltx = {"musixltx%.tex","MusiXLaTeX"},
musixlyr = {"musixlyr%.tex","MusiXLYR"}
}

-- Signatures of messages displayed on standard output by programs 
capturetargets = {
MTx = "This is (M%-Tx.->)",
PMX = "This is (PMX[^\n]+)",
pdftex = "This is (pdfTeX[^\n]+)",
musixflx = "Musixflx%S+",
autosp = "This is autosp.*$",
index = "autosp,MTx,PMX,musixflx,pdftex"
}

function report_texfiles(logname)
  local log = logname and io.open(logname)
  if not log then return end
  local lines = 
    {"---   TeX files actually included according to "..logname.."   ---"}
  log = log:read"*a"
-- The following pattern matches filenames input by TeX, even if
-- interrupted by a line break. It may include the first word of
-- an \immediate\write10 message emitted by the file.
  for pos,filename in log:gmatch"%(()(%.?[/]%a[%-/%.%w\n]+)" do
    local hit
    repeat  
      local oldfilename = filename
      filename = oldfilename:match"[^\n]+"   -- up to next line break
      hit = io.open(filename)                -- success if the file exists
      if hit then break end
      filename = oldfilename:gsub("\n","",1) -- remove line break
    until filename==oldfilename 
    if hit then
      for target,sig in pairs(logtargets) do
        if filename:match(sig[1]) then
          local i,j = log:find(sig[2].."[^\n]+",pos)          
          if j then lines[#lines+1] = filename.."\n  "..log:sub(i,j) end
        end
      end
    end
  end
  return table.concat(lines,'\n').."\n"
end  

function report_versions(tempname)
  if not tempname then return end  -- only available with -q
  local logs = io.open(tempname)
  if not logs then 
     musixlog:write ("No version information: could not open "..tempname)
     return
  end
  local versions = {}
  musixlog:write("---   Programs actually executed according to "..tempname.."   ---\n")
  for line in logs:lines() do
    for target in capturetargets.index:gmatch"[^,]+" do
      if not versions[target] then
        local found = line:match(capturetargets[target]) 
        if found then
          versions[target] = found
          musixlog:write(found,"\n")
        end 
      end
    end
  end
  logs:close()
  return
end

------------------------------------------------------------------------

whoami()

defaults()

exit_code = 0
narg = 1
protect = {}  -- extensions not to be deleted, even if cleanup requested

repeat
  this_arg = arg[narg]
  if this_arg:match"^%-" then process_option(this_arg)
  else
    basename, extension = find_file(this_arg)  -- nil,nil if not found
    if tex then -- tex output enabled, now select engine
      if tex:match"pdf" then dvi = nil end
      if not dvi then ps2pdf = nil end
      -- .ltx extension will be taken into account later, in `process`
      -- deduce tex/latex from current engine name if -l is not specified
      if not override:match"l" then latex = tex:match"latex" end 
      if not force_engine then -- select appropriate default engine
        if latex then 
          if dvi==nil then tex = "pdflatex" else tex = "latex" end
        else 
          if dvi==nil then tex = "pdfetex" else tex = "etex" end
        end  
      end
    end
    extension = preprocess(basename, extension)
    tex_process(tex,basename,extension)
    if basename and io.open(basename..".log") then -- to be printed later
      versions = report_texfiles(basename..".log")
    end
    if basename and cleanup then
      remove("pmxaerr.dat")
      for ext in ("mx1,mx2,dvi,ps,idx,log,ilg,pml"):gmatch"[^,]+" do
        if not protect[ext] then remove(basename.."."..ext)
        end
      end
    end
    protect = {}
  end 
  narg = narg+1
until narg > #arg 

if versions then musixlog:write(versions) end
report_versions(tempname)
musixlog:close()
os.exit( exit_code )