summaryrefslogtreecommitdiff
path: root/Master/tlpkg/TeXLive/TLPaper.pm
blob: 080b191622abbeccef0b238fb61cf8950038f330 (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
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
# $Id$
# TeXLive::TLPaper.pm - query/modify paper sizes for our various programs
# Copyright 2008, 2009, 2010 Norbert Preining
# This file is licensed under the GNU General Public License version 2
# or any later version.
#
# TODO TODO TODO
# if no paperconfig line is found in paper_do_simple it adds to the end of the
# file the new line, but this does not work on context because it 
# has an \endinput at the end ... needs to be fixed

package TeXLive::TLPaper;

my $svnrev = '$Revision$';
my $_modulerevision;
if ($svnrev =~ m/: ([0-9]+) /) {
  $_modulerevision = $1;
} else {
  $_modulerevision = "unknown";
}
sub module_revision {
  return $_modulerevision;
}

=pod

=head1 NAME

C<TeXLive::TLPaper> -- paper size setting

=head1 SYNOPSIS

  use TeXLive::TLPaper;

=head1 DESCRIPTION

=over 4

=cut

use TeXLive::TLUtils qw(:DEFAULT dirname merge_into mkdirhier);

my %paper_sub = (
  "xdvi"     => \&paper_xdvi,
  "pdftex"   => \&paper_pdftex,
  "dvips"    => \&paper_dvips,
  "dvipdfmx" => \&paper_dvipdfmx,
  "dvipdfm"  => \&paper_dvipdfm,
  "context"  => \&paper_context,
);

# Where to write to by default.
my %default_paper_config_path_component = (
  "xdvi"     => "xdvi/XDvi",
  "pdftex"   => "tex/generic/config/pdftexconfig.tex",
  "dvips"    => "dvips/config/config.ps",
  "dvipdfmx" => "dvipdfmx/dvipdfmx.cfg",
  "dvipdfm"  => "dvipdfm/config/config",
  "context"  => "tex/context/user/cont-sys.tex",
);

# Output is done to the components in this hash.
# If a value is undefined, we take the one from %default_...
#
my %paper_config_path_component;


my %xdvi_papersize = (
  "a1"       => "59.4x84.0cm",
  "a1r"      => "84.0x59.4cm",
  "a2"       => "42.0x59.4cm",
  "a2r"      => "59.4x42.0cm",
  "a3"       => "29.7x42.0cm",
  "a3r"      => "42.0x29.7cm",
  "a4"       => "21.0x29.7cm",
  "a4r"      => "29.7x21.0cm",
  "a5"       => "14.85x21.0cm",
  "a5r"      => "21.0x14.85cm",
  "a6"       => "10.5x14.85cm",
  "a6r"      => "14.85x10.5cm",
  "a7"       => "7.42x10.5cm",
  "a7r"      => "10.5x7.42cm",
  "b1"       => "70.6x100.0cm",
  "b1r"      => "100.0x70.6cm",
  "b2"       => "50.0x70.6cm",
  "b2r"      => "70.6x50.0cm",
  "b3"       => "35.3x50.0cm",
  "b3r"      => "50.0x35.3cm",
  "b4"       => "25.0x35.3cm",
  "b4r"      => "35.3x25.0cm",
  "b5"       => "17.6x25.0cm",
  "b5r"      => "25.0x17.6cm",
  "b6"       => "13.5x17.6cm",
  "b6r"      => "17.6x13.5cm",
  "b7"       => "8.8x13.5cm",
  "b7r"      => "13.5x8.8cm",
  "c1"       => "64.8x91.6cm",
  "c1r"      => "91.6x64.8cm",
  "c2"       => "45.8x64.8cm",
  "c2r"      => "64.8x45.8cm",
  "c3"       => "32.4x45.8cm",
  "c3r"      => "45.8x32.4cm",
  "c4"       => "22.9x32.4cm",
  "c4r"      => "32.4x22.9cm",
  "c5"       => "16.2x22.9cm",
  "c5r"      => "22.9x16.2cm",
  "c6"       => "11.46x16.2cm",
  "c6r"      => "16.2x11.46cm",
  "c7"       => "8.1x11.46cm",
  "c7r"      => "11.46x8.1cm",
  "foolscap" => "13.5x17.0",
  "ledger"   => "17.0x11.0",
  "legal"    => "8.5x14",
  "letter"   => "8.5x11",
  "tabloid"  => "11.0x17.0",
  "us"       => "8.5x11",
  "usr"      => "11x8.5",
);

my %pdftex_papersize = (
  "a4"     => [ '210 true mm', '297 true mm' ],
  "letter" => [ '8.5 true in', '11 true in' ],
);

my %dvipdfm_papersize = (
  "a3" => 1,
  "a4" => 1,
  "ledger" => 1, 
  "legal" => 1,
  "letter" => 1,
  "tabloid" => 1,
);




=item C<get_paper_list($prog)>

Returns the list of supported paper sizes with the first entry being
the currently selected one.

=cut

sub get_paper_list {
  my $prog = shift;
  return ( &{$paper_sub{$prog}} ( "/dummy", "--returnlist" ) );
}

=item C<do_paper($prog,$texmfsysconfig,@args)>

Call the paper subroutine for C<$prog>, passing args.

=cut

sub do_paper {
  my ($prog,$texmfsysconfig,@args) = @_;
  my @ret = ();
  if (exists $paper_sub{$prog}) {
    my $sub = $paper_sub{$prog};
    @ret = &$sub($texmfsysconfig, @args);
  } else {
    tlwarn("$0: unknown paper program $prog ($texmfsysconfig,@args)\n");
  }
  return @ret;
}


=item C<paper_all($texmfsysconfig, $newpaper)>

Pass all C<@args> to each paper subroutine in turn, thus setting the
paper size for all supported programs.  Return merge of all returned
hashes.

=cut

sub paper_all {
  for my $p (sort keys %paper_sub) {
    &{$paper_sub{$p}} (@_);
  }
}


# return the config file to look in by running kpsewhich with the
# specified PROGNAME, FORMAT, and @FILENAMES.  If no result, give a
# warning and return the empty string.
# 
sub find_paper_file {
  my ($progname, $format, @filenames) = @_;
  my $ret = "";
  
  my $cmd;
  for my $filename (@filenames) {
    $cmd = qq!kpsewhich --progname=$progname --format="$format" $filename!;
    chomp($ret = `$cmd`);
    if ($ret) {
      debug("paper file for $progname ($format) $filename: $ret\n");
      last;
    }
  }

  tlwarn("$0: found no paper file for $progname (from $cmd)\n") if ! $ret;
  return $ret;
}


# xdvi format:
# /--- XDvi ---
# |...
# |*paper: <NAME>
# |...
# \------------
#
# Reading is done via --progname=xdvi --format='other text files' XDvi
# Writing is done to TEXMFSYSCONFIG/xdvi/XDvi
#
sub paper_xdvi {
  my $outtree = shift;
  my $newpaper = shift;

  my $inp = &find_paper_file("xdvi", "other text files", "XDvi");
  return unless $inp; 
  
  my $outcomp = $paper_config_path_component{"xdvi"}
                || $default_paper_config_path_component{"xdvi"};
  my $outfile = "$outtree/$outcomp";

  my @sizes = keys %xdvi_papersize;
  return &paper_do_simple($inp, "xdvi", '^\*paper: ', '^\*paper:\s+(\w+)\s*$',
            sub {
              my ($ll,$np) = @_;
              $ll =~ s/^\*paper:\s+(\w+)\s*$/\*paper: $np\n/;
              return($ll);
            }, $outfile, \@sizes, '(undefined)', '*paper: a4', $newpaper);
}


# pdftex pdftexconfig.tex format
# /--- pdftexconfig.tex ---
# |...
# |\pdfpagewidth=NNN true <unit>
# |\pdfpageheight=NNN true <unit>
# |...
# \------------------------
#
# Reading is done via --progname=pdftex --format='tex' pdftexconfig.tex
# Writing is done to TEXMFSYSCONFIG/tex/generic/config/pdftexconfig.tex
#
sub paper_pdftex {
  my $outtree = shift;
  my $newpaper = shift;

  my $outcomp = $paper_config_path_component{"pdftex"}
                || $default_paper_config_path_component{"pdftex"};
  my $outfile = "$outtree/$outcomp";
  
  my $inp = &find_paper_file("pdftex", "tex", "pdftexconfig.tex");
  return unless $inp; 

  open(FOO, "<$inp") || die "$0: open($inp) failed: $!";
  my @lines = <FOO>;
  close(FOO);

  my ($cpw, $cph);
  my ($cpwidx, $cphidx);
  my $endinputidx;
  # read the lines and the last pdfpageswidth/height wins
  for my $idx (0..$#lines) {
    my $l = $lines[$idx];
    if ($l =~ m/^\s*\\pdfpagewidth\s*=?\s*(.+)\s*$/) {
      $cpw = $1;
      $cpwidx = $idx;
      next;
    }
    if ($l =~ m/^\s*\\pdfpageheight\s*=?\s*(.+)\s*$/) {
      $cph = $1;
      $cphidx = $idx;
      next;
    }
    if ($l =~ m/^\s*\\endinput\s*/) {
      $endinputidx = $idx;
      next;
    }
  }
  # trying to find the right papersize
  #
  my $currentpaper;
  if (defined($cpw) && defined($cph)) {
    for my $pname (keys %pdftex_papersize) {
      my ($w, $h) = @{$pdftex_papersize{$pname}};
      if (($w eq $cpw) && ($h eq $cph)) {
        $currentpaper = $pname;
        last;
      }
    }
  } else {
    $currentpaper = "(undefined)";
  }
  $currentpaper || ($currentpaper = "$cpw x $cph");
  if (defined($newpaper)) {
    if ($newpaper eq "--list") {
      info("$currentpaper\n");
      for my $p (keys %pdftex_papersize) {
        info("$p\n") unless ($p eq $currentpaper);
      }
    } elsif ($newpaper eq "--returnlist") {
      my @ret = ();
      push @ret, "$currentpaper";
      for my $p (keys %pdftex_papersize) {
        push @ret, $p unless ($p eq $currentpaper);
      }
      return @ret;
    } else {
      my $found = 0;
      for my $p (keys %pdftex_papersize) {
        if ($p eq $newpaper) {
          $found = 1;
          last;
        }
      }
      if ($found) {
        my $newwline = 
          '\pdfpagewidth=' . ${$pdftex_papersize{$newpaper}}[0] . "\n";
        my $newhline = 
          '\pdfpageheight=' . ${$pdftex_papersize{$newpaper}}[1] . "\n";
        if (defined($cpwidx)) {
          $lines[$cpwidx] = $newwline;
        } else {
          if (defined($endinputidx)) {
            $lines[$endinputidx] = $newwline . $lines[$endinputidx];
          } else {
            $lines[$#lines] = $newwline;
          }
        }
        if (defined($cphidx)) {
          $lines[$cphidx] = $newhline;
        } else {
          if (defined($endinputidx)) {
            $lines[$endinputidx] = $newhline . $lines[$endinputidx];
          } else {
            $lines[$#lines] = $newwline;
          }
        }
        info("$0: setting paper size for pdftex to $newpaper.\n");
        mkdirhier(dirname($outfile));
        # if we create the outfile we have to call mktexlsr
        TeXLive::TLUtils::announce_execute_actions("files-changed")
          unless (-r $outfile);
        if (!open(TMP, ">$outfile")) {
          tlwarn("$0: Cannot write to $outfile: $!\n");
          tlwarn("Not setting paper size for pdftex.\n");
          return;
        }
        for (@lines) { print TMP; }
        close(TMP) || warn "$0: close(>$outfile) failed: $!";
        TeXLive::TLUtils::announce_execute_actions("regenerate-formats");
      } else {
        tlwarn("$0: Not a valid paper size for pdftex: $newpaper\n");
      }
    }
  } else {
    info("Current pdftex paper size (from $inp): $currentpaper\n");
  }
}


# dvips config.ps format:
# /--- config.ps ---
# |...
# |stuff not related to paper sizes
# |...
# | <empty line>
# |% some comments
# |% more comments
# |@ <NAME> <WIDTH> <HEIGHT>
# |@+ ...definition line
# |@+ ...definition line
# |... more definition lines
# |@+ %%EndPaperSize
# |
# |@ <NAME> <WIDTH> <HEIGHT>
# |...
# \------------
#
# the first paper definition is the default
# selecting paper is done like with texconfig which used ed to move the
# selected part between @ $selected_paper .... @ /-1 (the line before the
# next @ line) to the line before the first @  line.
# (what a tricky ed invocation te created there, impressive!!!)
#
# Reading is done via --progname=dvips --format='dvips config' config.ps
# Writing is done to TEXMFSYSCONFIG/dvips/config/config.ps
#
sub paper_dvips {
  my $outtree = shift;
  my $newpaper = shift;

  my $inp = &find_paper_file("dvips", "dvips config", "config.ps");
  return unless $inp; 
  
  my $outcomp = $paper_config_path_component{"dvips"}
                || $default_paper_config_path_component{"dvips"};
  my $outfile = "$outtree/$outcomp";

  open(FOO, "<$inp") || die "$0: open($inp) failed: $!";
  my @lines = <FOO>;
  close(FOO);

  my @papersizes;
  my $firstpaperidx;
  my %startidx;
  my %endidx;
  my $in_block = "";
  my $idx = 0;
  for my $idx (0 .. $#lines) {
    if ($lines[$idx] =~ m/^@ (\w+)/) {
      $startidx{$1} = $idx;
      $firstpaperidx || ($firstpaperidx = $idx-1);
      $in_block = $1;
      push @papersizes, $1;
      next;
    }
    # empty lines or comments stop a block
    if ($in_block) {
      if ($lines[$idx] =~ m/^\s*(%.*)?\s*$/) {
        $endidx{$in_block} = $idx-1;
        $in_block = "";
      }
      next;
    }
  }

  if (defined($newpaper)) {
    if ($newpaper eq "--list") {
      for my $p (@papersizes) {
        info("$p\n"); # first is already the selected one
      }
    } elsif ($newpaper eq "--returnlist") {
      return(@papersizes);
    } else {
      my $found = 0;
      for my $p (@papersizes) {
        if ($p eq $newpaper) {
          $found = 1;
          last;
        }
      }
      if ($found) {
        my @newlines;
        for my $idx (0..$#lines) {
          if ($idx < $firstpaperidx) {
            push @newlines, $lines[$idx];
            next;
          }
          if ($idx == $firstpaperidx) { 
            # insert the selected paper definition
            push @newlines, @lines[$startidx{$newpaper}..$endidx{$newpaper}];
            push @newlines, $lines[$idx];
            next;
          }
          if ($idx >= $startidx{$newpaper} && $idx <= $endidx{$newpaper}) {
            next;
          }
          push @newlines, $lines[$idx];
        }
        info("$0: setting paper size for dvips to $newpaper.\n");
        mkdirhier(dirname($outfile));
        # if we create the outfile we have to call mktexlsr
        TeXLive::TLUtils::announce_execute_actions("files-changed")
          unless (-r $outfile);
        if (!open(TMP, ">$outfile")) {
          tlwarn("$0: Cannot write to $outfile: $!\n");
          tlwarn("Not setting paper size for dvips.\n");
          return ();
        }
        for (@newlines) { print TMP; }
        close(TMP) || warn "$0: close(>$outfile) failed: $!";
      } else {
        tlwarn("$0: Not a valid paper size for dvips: $newpaper\n");
      }
    }
  } else {
    info("Current dvips paper size (from $inp): $papersizes[0]\n");
  }
}


# dvipdfm(x) format:
# /--- dvipdfm/config, dvipdfmx/dvipdfmx.cfg ---
# |...
# |p <NAME>
# |...
# \------------
#
# Reading is done
#  for dvipdfm via --progname=dvipdfm --format='other text files' config
#  for dvipdfmx via --progname=dvipdfmx --format='other text files' dvipdfmx.cfg
# Writing is done to TEXMFSYSCONFIG/dvipdfm/config/config 
# and /dvipdfmx/dvipdfmx.cfg
#
#
sub do_dvipdfm_and_x {
  my ($inp,$prog,$outtree,$paplist,$newpaper) = @_;
  my $outcomp = $paper_config_path_component{$prog}
                || $default_paper_config_path_component{$prog};
  my $outfile = "$outtree/$outcomp";
  return &paper_do_simple($inp, $prog, '^p\s+', '^p\s+(\w+)\s*$',
            sub {
              my ($ll,$np) = @_;
              $ll =~ s/^p\s+(\w+)\s*$/p $np\n/;
              return($ll);
            }, $outfile, $paplist, '(undefined)', 'p a4', $newpaper);
}

sub paper_dvipdfm {
  my $outtree = shift;
  my $newpaper = shift;

  my $inp = &find_paper_file("dvipdfm", "other text files", "config");
  return () unless $inp; 

  my @sizes = keys %dvipdfm_papersize;
  return &do_dvipdfm_and_x($inp, "dvipdfm", $outtree, \@sizes, $newpaper);
}

sub paper_dvipdfmx {
  my $outtree = shift;
  my $newpaper = shift;

  my $inp = &find_paper_file("dvipdfmx", "other text files", "dvipdfmx.cfg");
  return () unless $inp; 

  my @sizes = keys %dvipdfm_papersize;
  return &do_dvipdfm_and_x($inp, "dvipdfmx", $outtree, \@sizes, $newpaper);
}


# context format:
# /--- cont-sys.{tex,rme}
# |...
# |\setuppapersize[letter][letter]
# |...
# \------------
# 
sub paper_context {
  my $outtree = shift;
  my $newpaper = shift;

  my $outcomp = $paper_config_path_component{"context"}
                || $default_paper_config_path_component{"context"};
  my $outfile = "$outtree/$outcomp";

  my $inp = &find_paper_file("context", "tex", "cont-sys.tex", "cont-sys.rme");
  return () unless $inp; 

  my @sizes = keys %pdftex_papersize;
  # take care here, the \\\\ are necessary in some places and not in 
  # some others because there is no intermediate evaluation
  return &paper_do_simple($inp, "context", '^\s*\\\\setuppapersize\s*', 
            '^\s*\\\\setuppapersize\s*\[([^][]*)\].*$',
            sub {
              my ($ll,$np) = @_;
              if ($ll =~ m/^\s*\\setuppapersize\s*/) {
                return("\\setuppapersize[$np][$np]\n");
              } else {
                return($ll);
              }
            }, 
            $outfile, \@sizes, 'a4', '\setuppapersize[a4][a4]', $newpaper);
}


# paper_do_simple does the work for single line config files
# (xdvi, dvipdfm, ...)
# arguments:
#   $inp, $prog, $firstre, $secondre, $bl, $outp, $paplist, $newpaper
# with
# $inp .. input file location
# $prog .. program name
# $firstre .. re that searches for paper lines
# $secondre .. re that extracts the paper from a paper line
# $bl .. block/sub taking two args, one paper line and the new paper, and
#        returns the line with the paper configured, only lines mathing
#        $firstre are shipped over to $bl
# $outp .. location of the output file
# $paplist .. ref to an array with the list of admissible paper sizes
# $defaultpaper .. default papersize (arbitrary string) if the $firstre is
#        not found in the config file
# $defaultline .. the line to be added at the bottom of the file if
#        no line has been found
# $newpaper .. --list, new paper, or undef
sub paper_do_simple {
  my ($inp, $prog, $firstre, $secondre, $bl, $outp, $paplist, $defaultpaper, $defaultline, $newpaper) = @_;

  debug("file used for $prog: $inp\n");

  open(FOO, "<$inp") or die("cannot open file $inp: $!");
  my @lines = <FOO>;
  close(FOO);

  my $currentpaper;
  my @paperlines = grep (m/$firstre/,@lines);
  if (!@paperlines) {
    $currentpaper = $defaultpaper;
  } else {
    if ($#paperlines > 0) {
      warn "Strange, more than one paper definition, using the first one in\n$inp\n";
    }
    $currentpaper = $paperlines[0];
    chomp($currentpaper);
    $currentpaper =~ s/$secondre/$1/;
  }

  # change value
  if (defined($newpaper)) {
    if ($newpaper eq "--list") {
      info("$currentpaper\n");
      for my $p (@$paplist) {
        info("$p\n") unless ($p eq $currentpaper);
      }
    } elsif ($newpaper eq "--returnlist") {
      my @ret = ();
      push @ret, $currentpaper;
      for my $p (@$paplist) {
        push @ret, $p unless ($p eq $currentpaper);
      }
      return(@ret);
    } else {
      my $found = 0;
      for my $p (@$paplist) {
        if ($p eq $newpaper) {
          $found = 1;
          last;
        }
      }
      if ($found) {
        my @newlines;
        my $foundcfg = 0;
        for my $l (@lines) {
          if ($l =~ m/$firstre/) {
            push @newlines, &$bl($l, $newpaper);
            $foundcfg = 1;
          } else {
            push @newlines, $l;
          }
        }
        # what to do if no default line found???
        if (!$foundcfg) {
          push @newlines, &$bl($defaultline, $newpaper);
        }
        info("$0: setting paper size for $prog to $newpaper.\n");
        mkdirhier(dirname($outp));
        # if we create the outfile we have to call mktexlsr
        TeXLive::TLUtils::announce_execute_actions("files-changed")
          unless (-r $outp);
        if (!open(TMP, ">$outp")) {
          tlwarn("$0: Cannot write to $outp: $!\n");
          tlwarn("Not setting paper size for $prog.\n");
          return;
        }
        for (@newlines) { print TMP; }
        close(TMP) || warn "$0: close(>$outfile) failed: $!";
        TeXLive::TLUtils::announce_execute_actions("regenerate-formats")
          if ($prog eq "context");
      } else {
        tlwarn("$0: Not a valid paper size for $prog: $newpaper\n");
      }
    }
  } else {
    # return the current value
    info("Current $prog paper size (from $inp): $currentpaper\n");
  }
}

=back
=cut
1;

### Local Variables:
### perl-indent-level: 2
### tab-width: 2
### indent-tabs-mode: nil
### End:
# vim:set tabstop=2 expandtab: #