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
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
|
% dvitype.ch for C compilation with web2c.
%
% 04/04/83 (PC) Merged with Pavel's change file and made to work with the
% version 1.0 of DVItype released with version 0.95 of TeX in
% February, 1983.
% 04/18/83 (PC) Added changes to module 47 so that it would work the same
% when input was a file (or pipe) as with a terminal.
% 06/29/83 (HWT) Brought up to version 1.1 as released with version 0.99 of
% TeX, with new change file format
% 07/28/83 (HWT) Brought up to version 2 as released with version 0.999.
% Only the banner changes.
% 11/21/83 (HWT) Brought up to version 2.2 as released with version 1.0.
% 02/19/84 (HWT) Made it use the TEXFONTS environment variable.
% 03/23/84 (HWT) Brought up to version 2.3.
% 07/11/84 (HWT) Brought up to version 2.6 as released with version 1.1.
% 11/07/84 (ETM) Brought up to version 2.7 as released with version 1.2.
% 03/09/88 (ETM) Brought up to version 2.9
% 03/16/88 (ETM) Converted for use with WEB to C.
% 11/30/89 (KB) To version 3.
% 01/16/90 (SR) To version 3.2.
% (more recent changes in the ChangeLog)
@x [0] l.32
\def\title{DVI$\,$\lowercase{type}}
@y
\def\title{DVI$\,$\lowercase{type} changes for C}
@z
@x [0] WEAVE: print changes only.
\pageno=\contentspagenumber \advance\pageno by 1
@y
\pageno=\contentspagenumber \advance\pageno by 1
\let\maybe=\iffalse
@z
@x [1] Define my_name
@d banner=='This is DVItype, Version 3.6' {printed when the program starts}
@y
@d my_name=='dvitype'
@d banner=='This is DVItype, Version 3.6' {printed when the program starts}
@z
% [3] Specify the output file to simplify web2c, and don't print the
% banner until later.
@x
@d print(#)==write(#)
@d print_ln(#)==write_ln(#)
@y
@d print(#)==write(stdout, #)
@d print_ln(#)==write_ln(stdout, #)
@z
@x
procedure initialize; {this procedure gets things started properly}
var i:integer; {loop index for initializations}
begin print_ln(banner);@/
@y
@<Define |parse_arguments|@>
procedure initialize; {this procedure gets things started properly}
var i:integer; {loop index for initializations}
begin
kpse_set_program_name (argv[0], my_name);
parse_arguments;
print (banner);
print_ln (version_string);
@z
@x [4] Purge non-local 'goto'.
@ If the program has to stop prematurely, it goes to the
`|final_end|'. Another label, |done|, is used when stopping normally.
@d final_end=9999 {label for the end of it all}
@d done=30 {go here when finished with a subtask}
@<Labels...@>=final_end,done;
@y
@ Label |done| is used when stopping normally.
@d done=30 {go here when finished with a subtask}
@<Labels...@>=done;
@z
% There were no complaints that these values are too small, and adjusting
% them dynamically requires to resize a large number of arrays and is not
% worth the effort (if necessary one can recompile with larger values).
@x [5] Allow more fonts, more widths, no arbitrary filename length. No dialog.
@!max_fonts=100; {maximum number of distinct fonts per \.{DVI} file}
@!max_widths=10000; {maximum number of different characters among all fonts}
@y
@!max_fonts=500; {maximum number of distinct fonts per \.{DVI} file}
@!max_widths=25000; {maximum number of different characters among all fonts}
@z
@x
@!terminal_line_length=150; {maximum number of characters input in a single
line of input from the terminal}
@y
@z
@x
@!name_size=1000; {total length of all font file names}
@!name_length=50; {a file name shouldn't be longer than this}
@y
@!name_size=10000; {total length of all font file names}
@z
@x [7] Remove non-local goto.
so a procedure called |jump_out| has been introduced. This procedure, which
simply transfers control to the label |final_end| at the end of the program,
contains the only non-local |goto| statement in \.{DVItype}.
@y
so a procedure called |jump_out| has been introduced.
@z
@x
@d abort(#)==begin print(' ',#); jump_out;
end
@d bad_dvi(#)==abort('Bad DVI file: ',#,'!')
@.Bad DVI file@>
@p procedure jump_out;
begin goto final_end;
end;
@y
@d jump_out==uexit(1)
@d abort(#)==begin write_ln(stderr,#); jump_out; end
@d bad_dvi(#)==abort('Bad DVI file: ',#,'!')
@.Bad DVI file@>
@z
@x [8] Permissive input.
@!ASCII_code=" ".."~"; {a subrange of the integers}
@y
@!ASCII_code=0..255; {a subrange of the integers}
@z
% [9] The text_char type is used as an array index into `xord'. The
% default type `char' produces signed integers, which are bad array
% indices in C.
@x
@d text_char == char {the data type of characters in text files}
@d first_text_char=0 {ordinal number of the smallest element of |text_char|}
@d last_text_char=127 {ordinal number of the largest element of |text_char|}
@y
@d text_char == ASCII_code {the data type of characters in text files}
@d first_text_char=0 {ordinal number of the smallest element of |text_char|}
@d last_text_char=255 {ordinal number of the largest element of |text_char|}
@z
@x [23] Fix up opening the files.
@p procedure open_dvi_file; {prepares to read packed bytes in |dvi_file|}
begin reset(dvi_file);
cur_loc:=0;
end;
@#
procedure open_tfm_file; {prepares to read packed bytes in |tfm_file|}
begin reset(tfm_file,cur_name);
end;
@y
@p procedure open_dvi_file; {prepares to read packed bytes in |dvi_file|}
begin
resetbin (dvi_file, dvi_name);
cur_loc := 0;
end;
@#
procedure open_tfm_file; {prepares to read packed bytes in |tfm_file|}
var full_name: ^char;
begin
full_name := kpse_find_tfm (cur_name);
if full_name then begin
tfm_file := fopen (full_name, FOPEN_RBIN_MODE);
end else begin
tfm_file := nil;
end;
end;
@z
@x [24] No arbitrary limit on filename length.
@!cur_name:packed array[1..name_length] of char; {external name,
with no lower case letters}
@y
@!cur_name:^char; {external name}
@z
@x [28] dvi_length and move_to_byte.
@p function dvi_length:integer;
begin set_pos(dvi_file,-1); dvi_length:=cur_pos(dvi_file);
end;
@#
procedure move_to_byte(n:integer);
begin set_pos(dvi_file,n); cur_loc:=n;
end;
@y
@p function dvi_length:integer;
begin
xfseek (dvi_file, 0, 2, dvi_name);
cur_loc := xftell(dvi_file, dvi_name);
dvi_length := cur_loc;
end;
@#
procedure move_to_byte(n:integer);
begin
xfseek (dvi_file, n, 0, dvi_name);
cur_loc:=n;
end;
@z
@x [42/43] Initialize optional variables sooner.
@!count:array[0..9] of integer; {the count values on the current page}
@ @<Set init...@>=
out_mode:=the_works; max_pages:=1000000; start_vals:=0; start_there[0]:=false;
@y
@!count:array[0..9] of integer; {the count values on the current page}
@ Initializations are done sooner now.
@z
@x [45] No dialog.
@ The |input_ln| routine waits for the user to type a line at his or her
terminal; then it puts ASCII-code equivalents for the characters on that line
into the |buffer| array. The |term_in| file is used for terminal input,
and |term_out| for terminal output.
@^system dependencies@>
@<Glob...@>=
@!buffer:array[0..terminal_line_length] of ASCII_code;
@!term_in:text_file; {the terminal, considered as an input file}
@!term_out:text_file; {the terminal, considered as an output file}
@y
@ No dialog.
@z
@x [47] No input_ln.
@p procedure input_ln; {inputs a line from the terminal}
var k:0..terminal_line_length;
begin update_terminal; reset(term_in);
if eoln(term_in) then read_ln(term_in);
k:=0;
while (k<terminal_line_length)and not eoln(term_in) do
begin buffer[k]:=xord[term_in^]; incr(k); get(term_in);
end;
buffer[k]:=" ";
end;
@y
@z
@x [48] No dialog.
@ The global variable |buf_ptr| is used while scanning each line of input;
it points to the first unread character in |buffer|.
@<Glob...@>=
@!buf_ptr:0..terminal_line_length; {the number of characters read}
@y
@ No dialog.
@z
@x [49] No dialog.
@ Here is a routine that scans a (possibly signed) integer and computes
the decimal value. If no decimal integer starts at |buf_ptr|, the
value 0 is returned. The integer should be less than $2^{31}$ in
absolute value.
@p function get_integer:integer;
var x:integer; {accumulates the value}
@!negative:boolean; {should the value be negated?}
begin if buffer[buf_ptr]="-" then
begin negative:=true; incr(buf_ptr);
end
else negative:=false;
x:=0;
while (buffer[buf_ptr]>="0")and(buffer[buf_ptr]<="9") do
begin x:=10*x+buffer[buf_ptr]-"0"; incr(buf_ptr);
end;
if negative then get_integer:=-x @+ else get_integer:=x;
end;
@y
@ No dialog.
@z
@x [50-55] No dialog.
@ The selected options are put into global variables by the |dialog|
procedure, which is called just as \.{DVItype} begins.
@^system dependencies@>
@p procedure dialog;
label 1,2,3,4,5;
var k:integer; {loop variable}
begin rewrite(term_out); {prepare the terminal for output}
write_ln(term_out,banner);
@<Determine the desired |out_mode|@>;
@<Determine the desired |start_count| values@>;
@<Determine the desired |max_pages|@>;
@<Determine the desired |resolution|@>;
@<Determine the desired |new_mag|@>;
@<Print all the selected options@>;
end;
@ @<Determine the desired |out_mode|@>=
1: write(term_out,'Output level (default=4, ? for help): ');
out_mode:=the_works; input_ln;
if buffer[0]<>" " then
if (buffer[0]>="0")and(buffer[0]<="4") then out_mode:=buffer[0]-"0"
else begin write(term_out,'Type 4 for complete listing,');
write(term_out,' 0 for errors and fonts only,');
write_ln(term_out,' 1 or 2 or 3 for something in between.');
goto 1;
end
@ @<Determine the desired |start...@>=
2: write(term_out,'Starting page (default=*): ');
start_vals:=0; start_there[0]:=false;
input_ln; buf_ptr:=0; k:=0;
if buffer[0]<>" " then
repeat if buffer[buf_ptr]="*" then
begin start_there[k]:=false; incr(buf_ptr);
end
else begin start_there[k]:=true; start_count[k]:=get_integer;
end;
if (k<9)and(buffer[buf_ptr]=".") then
begin incr(k); incr(buf_ptr);
end
else if buffer[buf_ptr]=" " then start_vals:=k
else begin write(term_out,'Type, e.g., 1.*.-5 to specify the ');
write_ln(term_out,'first page with \count0=1, \count2=-5.');
goto 2;
end;
until start_vals=k
@ @<Determine the desired |max_pages|@>=
3: write(term_out,'Maximum number of pages (default=1000000): ');
max_pages:=1000000; input_ln; buf_ptr:=0;
if buffer[0]<>" " then
begin max_pages:=get_integer;
if max_pages<=0 then
begin write_ln(term_out,'Please type a positive number.');
goto 3;
end;
end
@ @<Determine the desired |resolution|@>=
4: write(term_out,'Assumed device resolution');
write(term_out,' in pixels per inch (default=300/1): ');
resolution:=300.0; input_ln; buf_ptr:=0;
if buffer[0]<>" " then
begin k:=get_integer;
if (k>0)and(buffer[buf_ptr]="/")and
(buffer[buf_ptr+1]>"0")and(buffer[buf_ptr+1]<="9") then
begin incr(buf_ptr); resolution:=k/get_integer;
end
else begin write(term_out,'Type a ratio of positive integers;');
write_ln(term_out,' (1 pixel per mm would be 254/10).');
goto 4;
end;
end
@ @<Determine the desired |new_mag|@>=
5: write(term_out,'New magnification (default=0 to keep the old one): ');
new_mag:=0; input_ln; buf_ptr:=0;
if buffer[0]<>" " then
if (buffer[0]>="0")and(buffer[0]<="9") then new_mag:=get_integer
else begin write(term_out,'Type a positive integer to override ');
write_ln(term_out,'the magnification in the DVI file.');
goto 5;
end
@y
@ No dialog (50).
@ No dialog (51).
@ No dialog (52).
@ No dialog (53).
@ No dialog (54).
@ No dialog (55).
@z
@x [56] Fix printing of floating point number.
print_ln(' Resolution = ',resolution:12:8,' pixels per inch');
if new_mag>0 then print_ln(' New magnification factor = ',new_mag/1000:8:3)
@y
print (' Resolution = ');
print_real (resolution, 12, 8);
print_ln (' pixels per inch');
if new_mag > 0
then begin
print (' New magnification factor = ');
print_real (new_mag / 1000.0, 8, 3);
print_ln('')
end
@z
@x [59] We use r for something else.
@!r:0..name_length; {index into |cur_name|}
@y
@!r:0..name_size; {current filename length}
@z
@x [62] <Load the new font...> close the file when we're done
if out_mode=errors_only then print_ln(' ');
@y
if out_mode=errors_only then print_ln(' ');
if tfm_file then
xfclose (tfm_file, cur_name); {should be the |kpse_find_tfm| result}
free (cur_name); {We |xmalloc|'d this before we got called.}
@z
@x [64] Don't set default_directory_name.
@d default_directory_name=='TeXfonts:' {change this to the correct name}
@d default_directory_name_length=9 {change this to the correct length}
@<Glob...@>=
@!default_directory:packed array[1..default_directory_name_length] of char;
@y
Under Unix, users have a path searched for fonts, there's no single
default directory.
@z
@x [65] Remove initialization of default_directory.
@ @<Set init...@>=
default_directory:=default_directory_name;
@y
@ (No initialization needs to be done. Keep this module to preserve
numbering.)
@z
@x [66] Don't append `.tfm' here, and keep lowercase.
@ The string |cur_name| is supposed to be set to the external name of the
\.{TFM} file for the current font. This usually means that we need to
prepend the name of the default directory, and
to append the suffix `\.{.TFM}'. Furthermore, we change lower case letters
to upper case, since |cur_name| is a \PASCAL\ string.
@^system dependencies@>
@<Move font name into the |cur_name| string@>=
for k:=1 to name_length do cur_name[k]:=' ';
if p=0 then
begin for k:=1 to default_directory_name_length do
cur_name[k]:=default_directory[k];
r:=default_directory_name_length;
end
else r:=0;
for k:=font_name[nf] to font_name[nf+1]-1 do
begin incr(r);
if r+4>name_length then
abort('DVItype capacity exceeded (max font name length=',
name_length:1,')!');
@.DVItype capacity exceeded...@>
if (names[k]>="a")and(names[k]<="z") then
cur_name[r]:=xchr[names[k]-@'40]
else cur_name[r]:=xchr[names[k]];
end;
cur_name[r+1]:='.'; cur_name[r+2]:='T'; cur_name[r+3]:='F'; cur_name[r+4]:='M'
@y
@ The string |cur_name| is supposed to be set to the external name of the
\.{TFM} file for the current font. We do not impose a maximum limit
here. It's too bad there is a limit on the total length of all
filenames, but it doesn't seem worth reprogramming all that.
@^system dependencies@>
@d name_start == font_name[nf]
@d name_end == font_name[nf+1]
@<Move font name into the |cur_name| string@>=
r := name_end - name_start;
cur_name := xmalloc_array (char, r);
{|strncpy| might be faster, but it's probably a good idea to keep the
|xchr| translation.}
for k := name_start to name_end do begin
cur_name[k - name_start] := xchr[names[k]];
end;
cur_name[r] := 0; {Append null byte for C.}
@z
@x [75] Diagnose impossible cases.
sixty_four_cases(fnt_num_0): first_par:=o-fnt_num_0;
end;
@y
sixty_four_cases(fnt_num_0): first_par:=o-fnt_num_0;
othercases abort('internal error');
endcases;
@z
@x [80] (major,minor) optionally show opcode
@d show(#)==begin flush_text; showing:=true; print(a:1,': ',#);
end
@d major(#)==if out_mode>errors_only then show(#)
@d minor(#)==if out_mode>terse then
begin showing:=true; print(a:1,': ',#);
@y
@d show(#)==begin flush_text; showing:=true; print(a:1,': ',#);
if show_opcodes and (o >= 128) then print (' {', o:1, '}');
end
@d major(#)==if out_mode>errors_only then show(#)
@d minor(#)==if out_mode>terse then
begin showing:=true; print(a:1,': ',#);
if show_opcodes and (o >= 128) then print (' {', o:1, '}');
@z
@x [99]
begin define_font(first_par(k)); k:=nop;
@y
begin define_font(first_par(k));
if out_mode<>errors_only then print_ln(' ');
k:=nop;
@z
@x [107] (main) No dialog; remove unused label.
dialog; {set up all the options}
@y
@<Print all the selected options@>;
@z
@x
final_end:end.
@y
end.
@z
@x [110] Fix another floating point print.
print_ln('magnification=',mag:1,'; ',conv:16:8,' pixels per DVI unit')
@y
print ('magnification=', mag:1, '; ');
print_real (conv, 16, 8);
print_ln (' pixels per DVI unit')
@z
@x [112] System-dependent changes.
This section should be replaced, if necessary, by changes to the program
that are necessary to make \.{DVItype} work at a particular installation.
It is usually best to design your change file so that all changes to
previous sections preserve the section numbering; then everybody's version
will be consistent with the printed program. More extensive changes,
which introduce new sections, can be inserted here; then only the index
itself will get a new section number.
@^system dependencies@>
@y
Parse a Unix-style command line.
@d argument_is (#) == (strcmp (long_options[option_index].name, #) = 0)
@<Define |parse_arguments|@> =
procedure parse_arguments;
const n_options = 8; {Pascal won't count array lengths for us.}
var @!long_options: array[0..n_options] of getopt_struct;
@!getopt_return_val: integer;
@!option_index: c_int_type;
@!current_option: 0..n_options;
@!end_num:^char; {for \.{page-start}}
begin
@<Define the option table@>;
repeat
getopt_return_val := getopt_long_only (argc, argv, '', long_options,
address_of (option_index));
if getopt_return_val = -1 then begin
do_nothing; {End of arguments; we exit the loop below.}
end else if getopt_return_val = "?" then begin
usage (my_name);
end else if argument_is ('help') then begin
usage_help (DVITYPE_HELP, nil);
end else if argument_is ('version') then begin
print_version_and_exit (banner, nil, 'D.E. Knuth', nil);
end else if argument_is ('output-level') then begin
if (optarg[0] < '0') or (optarg[0] > '4') or (optarg[1] <> 0) then begin
write_ln (stderr, 'Value for --output-level must be >= 0 and <= 4.');
uexit (1);
end;
out_mode := optarg[0] - '0';
end else if argument_is ('page-start') then begin
@<Determine the desired |start_count| values from |optarg|@>;
end else if argument_is ('max-pages') then begin
max_pages := atou (optarg);
end else if argument_is ('dpi') then begin
resolution := atof (optarg);
end else if argument_is ('magnification') then begin
new_mag := atou (optarg);
end; {Else it was a flag; |getopt| has already done the assignment.}
until getopt_return_val = -1;
{Now |optind| is the index of first non-option on the command line.}
if (optind + 1 <> argc) then begin
write_ln (stderr, my_name, ': Need exactly one file argument.');
usage (my_name);
end;
dvi_name := extend_filename (cmdline (optind), 'dvi');
end;
@ Here are the options we allow. The first is one of the standard GNU options.
@.-help@>
@<Define the option...@> =
current_option := 0;
long_options[current_option].name := 'help';
long_options[current_option].has_arg := 0;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
@ Another of the standard options.
@.-version@>
@<Define the option...@> =
long_options[current_option].name := 'version';
long_options[current_option].has_arg := 0;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
@ How verbose to be.
@.-output-level@>
@<Define the option...@> =
long_options[current_option].name := 'output-level';
long_options[current_option].has_arg := 1;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
out_mode := the_works; {default}
@ What page to start at.
@.-page-start@>
@<Define the option...@> =
long_options[current_option].name := 'page-start';
long_options[current_option].has_arg := 1;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
@ Parsing the starting page specification is a bit complicated.
@<Determine the desired |start_count|...@> =
k := 0; {which \.{\\count} register we're on}
m := 0; {position in |optarg|}
while optarg[m] do begin
if optarg[m] = "*" then begin
start_there[k] := false;
incr (m);
end else if optarg[m] = "." then begin
incr (k);
if k >= 10 then begin
write_ln (stderr, my_name, ': More than ten count registers specified.');
uexit (1);
end;
incr (m);
end else begin
start_count[k] := strtol (optarg + m, address_of (end_num), 10);
if end_num = optarg + m then begin
write_ln (stderr, my_name, ': -page-start values must be numeric or *.');
uexit (1);
end;
start_there[k] := true;
m := m + end_num - (optarg + m);
end;
end;
start_vals := k;
@ How many pages to do.
@.-max-pages@>
@<Define the option...@> =
long_options[current_option].name := 'max-pages';
long_options[current_option].has_arg := 1;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
max_pages := 1000000; {default}
@ Resolution, in pixels per inch.
@.-dpi@>
@<Define the option...@> =
long_options[current_option].name := 'dpi';
long_options[current_option].has_arg := 1;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
resolution := 300.0; {default}
@ Magnification to apply.
@.-magnification@>
@<Define the option...@> =
long_options[current_option].name := 'magnification';
long_options[current_option].has_arg := 1;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
incr (current_option);
new_mag := 0; {default is to keep the old one}
@ Whether to show numeric opcodes.
@.-show-opcodes@>
@<Define the option...@> =
long_options[current_option].name := 'show-opcodes';
long_options[current_option].has_arg := 0;
long_options[current_option].flag := address_of (show_opcodes);
long_options[current_option].val := 1;
incr (current_option);
@ @<Glob...@> =
@!show_opcodes: c_int_type;
@ An element with all zeros always ends the list.
@<Define the option...@> =
long_options[current_option].name := 0;
long_options[current_option].has_arg := 0;
long_options[current_option].flag := 0;
long_options[current_option].val := 0;
@ Global filenames.
@<Global...@> =
@!dvi_name:const_c_string;
@z
|