Add '--bisect' revision machinery argument
[git/git.git] / builtin-rev-parse.c
CommitLineData
178cb243
LT
1/*
2 * rev-parse.c
3 *
4 * Copyright (C) Linus Torvalds, 2005
5 */
6#include "cache.h"
a8be83fe 7#include "commit.h"
960bba0d 8#include "refs.h"
c1babb1d 9#include "quote.h"
895f10c3 10#include "builtin.h"
21d47835 11#include "parse-options.h"
a8be83fe 12
4866ccf0
JH
13#define DO_REVS 1
14#define DO_NOREV 2
15#define DO_FLAGS 4
16#define DO_NONFLAGS 8
17static int filter = ~0;
18
96f1e58f 19static const char *def;
023d66ed 20
042a4ed7
LT
21#define NORMAL 0
22#define REVERSED 1
23static int show_type = NORMAL;
a6d97d49
JH
24
25#define SHOW_SYMBOLIC_ASIS 1
26#define SHOW_SYMBOLIC_FULL 2
96f1e58f
DR
27static int symbolic;
28static int abbrev;
a45d3469
BW
29static int abbrev_ref;
30static int abbrev_ref_strict;
96f1e58f 31static int output_sq;
4866ccf0 32
921d865e
LT
33/*
34 * Some arguments are relevant "revision" arguments,
35 * others are about output format or other details.
36 * This sorts it all out.
37 */
38static int is_rev_argument(const char *arg)
39{
40 static const char *rev_args[] = {
e091eb93 41 "--all",
4866ccf0 42 "--bisect",
5a83f3be 43 "--dense",
a62be77f 44 "--branches",
4866ccf0 45 "--header",
921d865e 46 "--max-age=",
4866ccf0 47 "--max-count=",
4866ccf0 48 "--min-age=",
5ccfb758 49 "--no-merges",
4866ccf0 50 "--objects",
c6496575 51 "--objects-edge",
4866ccf0
JH
52 "--parents",
53 "--pretty",
a62be77f 54 "--remotes",
5a83f3be 55 "--sparse",
a62be77f 56 "--tags",
4866ccf0 57 "--topo-order",
4c8725f1 58 "--date-order",
4866ccf0 59 "--unpacked",
921d865e
LT
60 NULL
61 };
62 const char **p = rev_args;
63
8233340c
EW
64 /* accept -<digit>, like traditional "head" */
65 if ((*arg == '-') && isdigit(arg[1]))
66 return 1;
67
921d865e
LT
68 for (;;) {
69 const char *str = *p++;
70 int len;
71 if (!str)
72 return 0;
73 len = strlen(str);
4866ccf0
JH
74 if (!strcmp(arg, str) ||
75 (str[len-1] == '=' && !strncmp(arg, str, len)))
921d865e
LT
76 return 1;
77 }
78}
79
4866ccf0 80/* Output argument as a string, either SQ or normal */
5bb2c65a
JH
81static void show(const char *arg)
82{
83 if (output_sq) {
84 int sq = '\'', ch;
85
86 putchar(sq);
87 while ((ch = *arg++)) {
88 if (ch == sq)
89 fputs("'\\'", stdout);
90 putchar(ch);
91 }
92 putchar(sq);
93 putchar(' ');
94 }
95 else
96 puts(arg);
97}
98
e00f3790
JS
99/* Like show(), but with a negation prefix according to type */
100static void show_with_type(int type, const char *arg)
101{
102 if (type != show_type)
103 putchar('^');
104 show(arg);
105}
106
4866ccf0 107/* Output a revision, only if filter allows it */
30b96fce 108static void show_rev(int type, const unsigned char *sha1, const char *name)
023d66ed 109{
4866ccf0 110 if (!(filter & DO_REVS))
023d66ed 111 return;
4866ccf0 112 def = NULL;
5bb2c65a 113
a45d3469
BW
114 if ((symbolic || abbrev_ref) && name) {
115 if (symbolic == SHOW_SYMBOLIC_FULL || abbrev_ref) {
a6d97d49
JH
116 unsigned char discard[20];
117 char *full;
118
119 switch (dwim_ref(name, strlen(name), discard, &full)) {
120 case 0:
121 /*
122 * Not found -- not a ref. We could
123 * emit "name" here, but symbolic-full
124 * users are interested in finding the
125 * refs spelled in full, and they would
126 * need to filter non-refs if we did so.
127 */
128 break;
129 case 1: /* happy */
a45d3469
BW
130 if (abbrev_ref)
131 full = shorten_unambiguous_ref(full,
132 abbrev_ref_strict);
e00f3790 133 show_with_type(type, full);
a6d97d49
JH
134 break;
135 default: /* ambiguous */
136 error("refname '%s' is ambiguous", name);
137 break;
138 }
139 } else {
e00f3790 140 show_with_type(type, name);
a6d97d49
JH
141 }
142 }
d5012508 143 else if (abbrev)
e00f3790 144 show_with_type(type, find_unique_abbrev(sha1, abbrev));
30b96fce 145 else
e00f3790 146 show_with_type(type, sha1_to_hex(sha1));
023d66ed
LT
147}
148
4866ccf0 149/* Output a flag, only if filter allows it. */
16cee38a 150static int show_flag(const char *arg)
023d66ed 151{
4866ccf0 152 if (!(filter & DO_FLAGS))
9523a4c2
LT
153 return 0;
154 if (filter & (is_rev_argument(arg) ? DO_REVS : DO_NOREV)) {
0360e99d 155 show(arg);
9523a4c2
LT
156 return 1;
157 }
158 return 0;
023d66ed
LT
159}
160
dfd1b749 161static int show_default(void)
023d66ed 162{
16cee38a 163 const char *s = def;
023d66ed
LT
164
165 if (s) {
166 unsigned char sha1[20];
167
168 def = NULL;
9938af6a 169 if (!get_sha1(s, sha1)) {
30b96fce 170 show_rev(NORMAL, sha1, s);
dfd1b749 171 return 1;
023d66ed 172 }
023d66ed 173 }
dfd1b749 174 return 0;
023d66ed
LT
175}
176
8da19775 177static int show_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
960bba0d 178{
30b96fce 179 show_rev(NORMAL, sha1, refname);
960bba0d
LT
180 return 0;
181}
182
ad3f9a71
LT
183static int anti_reference(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
184{
185 show_rev(REVERSED, sha1, refname);
186 return 0;
187}
188
c1babb1d
LT
189static void show_datestring(const char *flag, const char *datestr)
190{
c1babb1d 191 static char buffer[100];
c1babb1d
LT
192
193 /* date handling requires both flags and revs */
194 if ((filter & (DO_FLAGS | DO_REVS)) != (DO_FLAGS | DO_REVS))
195 return;
3c07b1d1 196 snprintf(buffer, sizeof(buffer), "%s%lu", flag, approxidate(datestr));
c1babb1d
LT
197 show(buffer);
198}
199
9ad0a933 200static int show_file(const char *arg)
7a3dd472 201{
7b34c2fa 202 show_default();
9ad0a933 203 if ((filter & (DO_NONFLAGS|DO_NOREV)) == (DO_NONFLAGS|DO_NOREV)) {
7a3dd472 204 show(arg);
9ad0a933
LT
205 return 1;
206 }
207 return 0;
7a3dd472
LT
208}
209
b7d936b2 210static int try_difference(const char *arg)
3dd4e732
SB
211{
212 char *dotdot;
213 unsigned char sha1[20];
214 unsigned char end[20];
215 const char *next;
216 const char *this;
217 int symmetric;
218
219 if (!(dotdot = strstr(arg, "..")))
220 return 0;
221 next = dotdot + 2;
222 this = arg;
223 symmetric = (*next == '.');
224
225 *dotdot = 0;
226 next += symmetric;
227
228 if (!*next)
229 next = "HEAD";
230 if (dotdot == arg)
231 this = "HEAD";
232 if (!get_sha1(this, sha1) && !get_sha1(next, end)) {
233 show_rev(NORMAL, end, next);
234 show_rev(symmetric ? NORMAL : REVERSED, sha1, this);
235 if (symmetric) {
236 struct commit_list *exclude;
237 struct commit *a, *b;
238 a = lookup_commit_reference(sha1);
239 b = lookup_commit_reference(end);
240 exclude = get_merge_bases(a, b, 1);
241 while (exclude) {
242 struct commit_list *n = exclude->next;
243 show_rev(REVERSED,
244 exclude->item->object.sha1,NULL);
245 free(exclude);
246 exclude = n;
247 }
248 }
249 return 1;
250 }
251 *dotdot = '.';
252 return 0;
253}
254
2122f8b9
BS
255static int try_parent_shorthands(const char *arg)
256{
257 char *dotdot;
258 unsigned char sha1[20];
259 struct commit *commit;
260 struct commit_list *parents;
261 int parents_only;
262
263 if ((dotdot = strstr(arg, "^!")))
264 parents_only = 0;
265 else if ((dotdot = strstr(arg, "^@")))
266 parents_only = 1;
267
268 if (!dotdot || dotdot[2])
269 return 0;
270
271 *dotdot = 0;
272 if (get_sha1(arg, sha1))
273 return 0;
274
275 if (!parents_only)
276 show_rev(NORMAL, sha1, arg);
277 commit = lookup_commit_reference(sha1);
278 for (parents = commit->parents; parents; parents = parents->next)
279 show_rev(parents_only ? NORMAL : REVERSED,
280 parents->item->object.sha1, arg);
281
282 return 1;
283}
284
21d47835
PH
285static int parseopt_dump(const struct option *o, const char *arg, int unset)
286{
287 struct strbuf *parsed = o->value;
288 if (unset)
289 strbuf_addf(parsed, " --no-%s", o->long_name);
290 else if (o->short_name)
291 strbuf_addf(parsed, " -%c", o->short_name);
292 else
293 strbuf_addf(parsed, " --%s", o->long_name);
294 if (arg) {
295 strbuf_addch(parsed, ' ');
296 sq_quote_buf(parsed, arg);
297 }
298 return 0;
299}
300
301static const char *skipspaces(const char *s)
302{
303 while (isspace(*s))
304 s++;
305 return s;
306}
307
308static int cmd_parseopt(int argc, const char **argv, const char *prefix)
309{
6e0800ef 310 static int keep_dashdash = 0, stop_at_non_option = 0;
21d47835 311 static char const * const parseopt_usage[] = {
1b1dd23f 312 "git rev-parse --parseopt [options] -- [<args>...]",
21d47835
PH
313 NULL
314 };
315 static struct option parseopt_opts[] = {
316 OPT_BOOLEAN(0, "keep-dashdash", &keep_dashdash,
317 "keep the `--` passed as an arg"),
6e0800ef
UKK
318 OPT_BOOLEAN(0, "stop-at-non-option", &stop_at_non_option,
319 "stop parsing after the "
320 "first non-option argument"),
21d47835
PH
321 OPT_END(),
322 };
323
f285a2d7 324 struct strbuf sb = STRBUF_INIT, parsed = STRBUF_INIT;
21d47835
PH
325 const char **usage = NULL;
326 struct option *opts = NULL;
327 int onb = 0, osz = 0, unb = 0, usz = 0;
328
21d47835 329 strbuf_addstr(&parsed, "set --");
37782920 330 argc = parse_options(argc, argv, prefix, parseopt_opts, parseopt_usage,
21d47835
PH
331 PARSE_OPT_KEEP_DASHDASH);
332 if (argc < 1 || strcmp(argv[0], "--"))
333 usage_with_options(parseopt_usage, parseopt_opts);
334
21d47835
PH
335 /* get the usage up to the first line with a -- on it */
336 for (;;) {
337 if (strbuf_getline(&sb, stdin, '\n') == EOF)
338 die("premature end of input");
339 ALLOC_GROW(usage, unb + 1, usz);
340 if (!strcmp("--", sb.buf)) {
341 if (unb < 1)
342 die("no usage string given before the `--' separator");
343 usage[unb] = NULL;
344 break;
345 }
346 usage[unb++] = strbuf_detach(&sb, NULL);
347 }
348
349 /* parse: (<short>|<short>,<long>|<long>)[=?]? SP+ <help> */
350 while (strbuf_getline(&sb, stdin, '\n') != EOF) {
351 const char *s;
352 struct option *o;
353
354 if (!sb.len)
355 continue;
356
357 ALLOC_GROW(opts, onb + 1, osz);
358 memset(opts + onb, 0, sizeof(opts[onb]));
359
360 o = &opts[onb++];
361 s = strchr(sb.buf, ' ');
362 if (!s || *sb.buf == ' ') {
363 o->type = OPTION_GROUP;
e1033436 364 o->help = xstrdup(skipspaces(sb.buf));
21d47835
PH
365 continue;
366 }
367
368 o->type = OPTION_CALLBACK;
369 o->help = xstrdup(skipspaces(s));
370 o->value = &parsed;
ff962a3f 371 o->flags = PARSE_OPT_NOARG;
21d47835 372 o->callback = &parseopt_dump;
ff962a3f
PH
373 while (s > sb.buf && strchr("*=?!", s[-1])) {
374 switch (*--s) {
375 case '=':
376 o->flags &= ~PARSE_OPT_NOARG;
377 break;
378 case '?':
379 o->flags &= ~PARSE_OPT_NOARG;
380 o->flags |= PARSE_OPT_OPTARG;
381 break;
382 case '!':
383 o->flags |= PARSE_OPT_NONEG;
384 break;
385 case '*':
386 o->flags |= PARSE_OPT_HIDDEN;
387 break;
388 }
21d47835
PH
389 }
390
391 if (s - sb.buf == 1) /* short option only */
392 o->short_name = *sb.buf;
393 else if (sb.buf[1] != ',') /* long option only */
394 o->long_name = xmemdupz(sb.buf, s - sb.buf);
395 else {
396 o->short_name = *sb.buf;
397 o->long_name = xmemdupz(sb.buf + 2, s - sb.buf - 2);
398 }
399 }
400 strbuf_release(&sb);
401
402 /* put an OPT_END() */
403 ALLOC_GROW(opts, onb + 1, osz);
404 memset(opts + onb, 0, sizeof(opts[onb]));
37782920 405 argc = parse_options(argc, argv, prefix, opts, usage,
6e0800ef
UKK
406 keep_dashdash ? PARSE_OPT_KEEP_DASHDASH : 0 |
407 stop_at_non_option ? PARSE_OPT_STOP_AT_NON_OPTION : 0);
21d47835
PH
408
409 strbuf_addf(&parsed, " --");
b319ce4c 410 sq_quote_argv(&parsed, argv, 0);
21d47835
PH
411 puts(parsed.buf);
412 return 0;
413}
414
50325377
CC
415static int cmd_sq_quote(int argc, const char **argv)
416{
417 struct strbuf buf = STRBUF_INIT;
418
419 if (argc)
420 sq_quote_argv(&buf, argv, 0);
421 printf("%s\n", buf.buf);
422 strbuf_release(&buf);
423
424 return 0;
425}
426
b1b35969
CC
427static void die_no_single_rev(int quiet)
428{
429 if (quiet)
430 exit(1);
431 else
432 die("Needed a single revision");
433}
434
a633fca0 435int cmd_rev_parse(int argc, const char **argv, const char *prefix)
178cb243 436{
dfd1b749 437 int i, as_is = 0, verify = 0, quiet = 0, revs_count = 0, type = 0;
178cb243 438 unsigned char sha1[20];
dfd1b749 439 const char *name = NULL;
a62be77f 440
21d47835
PH
441 if (argc > 1 && !strcmp("--parseopt", argv[1]))
442 return cmd_parseopt(argc - 1, argv + 1, prefix);
443
50325377
CC
444 if (argc > 1 && !strcmp("--sq-quote", argv[1]))
445 return cmd_sq_quote(argc - 2, argv + 2);
446
5410a02a 447 prefix = setup_git_directory();
ef90d6d4 448 git_config(git_default_config, NULL);
178cb243 449 for (i = 1; i < argc; i++) {
16cee38a 450 const char *arg = argv[i];
fb18a2ed 451
178cb243 452 if (as_is) {
fb18a2ed 453 if (show_file(arg) && as_is < 2)
e23d0b4a 454 verify_filename(prefix, arg);
178cb243
LT
455 continue;
456 }
3af06987
EW
457 if (!strcmp(arg,"-n")) {
458 if (++i >= argc)
459 die("-n requires an argument");
460 if ((filter & DO_FLAGS) && (filter & DO_REVS)) {
461 show(arg);
462 show(argv[i]);
463 }
464 continue;
465 }
1968d77d 466 if (!prefixcmp(arg, "-n")) {
3af06987
EW
467 if ((filter & DO_FLAGS) && (filter & DO_REVS))
468 show(arg);
469 continue;
470 }
471
178cb243
LT
472 if (*arg == '-') {
473 if (!strcmp(arg, "--")) {
fb18a2ed 474 as_is = 2;
a08b6505
LT
475 /* Pass on the "--" if we show anything but files.. */
476 if (filter & (DO_FLAGS | DO_REVS))
477 show_file(arg);
4866ccf0 478 continue;
178cb243
LT
479 }
480 if (!strcmp(arg, "--default")) {
178cb243
LT
481 def = argv[i+1];
482 i++;
483 continue;
484 }
8ebb0184 485 if (!strcmp(arg, "--revs-only")) {
4866ccf0 486 filter &= ~DO_NOREV;
8ebb0184
LT
487 continue;
488 }
489 if (!strcmp(arg, "--no-revs")) {
4866ccf0 490 filter &= ~DO_REVS;
8ebb0184
LT
491 continue;
492 }
f79b65aa 493 if (!strcmp(arg, "--flags")) {
4866ccf0 494 filter &= ~DO_NONFLAGS;
f79b65aa
LT
495 continue;
496 }
497 if (!strcmp(arg, "--no-flags")) {
4866ccf0 498 filter &= ~DO_FLAGS;
f79b65aa
LT
499 continue;
500 }
023d66ed 501 if (!strcmp(arg, "--verify")) {
4866ccf0
JH
502 filter &= ~(DO_FLAGS|DO_NOREV);
503 verify = 1;
023d66ed 504 continue;
921d865e 505 }
b1b35969
CC
506 if (!strcmp(arg, "--quiet") || !strcmp(arg, "-q")) {
507 quiet = 1;
508 continue;
509 }
62a604ba 510 if (!strcmp(arg, "--short") ||
cc44c765 511 !prefixcmp(arg, "--short=")) {
d5012508
JH
512 filter &= ~(DO_FLAGS|DO_NOREV);
513 verify = 1;
514 abbrev = DEFAULT_ABBREV;
44de0da4
JF
515 if (arg[7] == '=')
516 abbrev = strtoul(arg + 8, NULL, 10);
1dc4fb84
JH
517 if (abbrev < MINIMUM_ABBREV)
518 abbrev = MINIMUM_ABBREV;
519 else if (40 <= abbrev)
520 abbrev = 40;
d5012508
JH
521 continue;
522 }
5bb2c65a
JH
523 if (!strcmp(arg, "--sq")) {
524 output_sq = 1;
525 continue;
526 }
042a4ed7
LT
527 if (!strcmp(arg, "--not")) {
528 show_type ^= REVERSED;
529 continue;
530 }
30b96fce 531 if (!strcmp(arg, "--symbolic")) {
a6d97d49
JH
532 symbolic = SHOW_SYMBOLIC_ASIS;
533 continue;
534 }
535 if (!strcmp(arg, "--symbolic-full-name")) {
536 symbolic = SHOW_SYMBOLIC_FULL;
30b96fce
JH
537 continue;
538 }
a45d3469
BW
539 if (!prefixcmp(arg, "--abbrev-ref") &&
540 (!arg[12] || arg[12] == '=')) {
541 abbrev_ref = 1;
542 abbrev_ref_strict = warn_ambiguous_refs;
543 if (arg[12] == '=') {
544 if (!strcmp(arg + 13, "strict"))
545 abbrev_ref_strict = 1;
546 else if (!strcmp(arg + 13, "loose"))
547 abbrev_ref_strict = 0;
548 else
549 die("unknown mode for %s", arg);
550 }
551 continue;
552 }
960bba0d 553 if (!strcmp(arg, "--all")) {
cb5d709f 554 for_each_ref(show_reference, NULL);
960bba0d
LT
555 continue;
556 }
ad3f9a71
LT
557 if (!strcmp(arg, "--bisect")) {
558 for_each_ref_in("refs/bisect/bad", show_reference, NULL);
559 for_each_ref_in("refs/bisect/good", anti_reference, NULL);
560 continue;
561 }
a62be77f 562 if (!strcmp(arg, "--branches")) {
cb5d709f 563 for_each_branch_ref(show_reference, NULL);
a62be77f
SE
564 continue;
565 }
566 if (!strcmp(arg, "--tags")) {
cb5d709f 567 for_each_tag_ref(show_reference, NULL);
a62be77f
SE
568 continue;
569 }
570 if (!strcmp(arg, "--remotes")) {
cb5d709f 571 for_each_remote_ref(show_reference, NULL);
a62be77f
SE
572 continue;
573 }
d288a700 574 if (!strcmp(arg, "--show-prefix")) {
4866ccf0
JH
575 if (prefix)
576 puts(prefix);
d288a700
LT
577 continue;
578 }
5f94c730
JH
579 if (!strcmp(arg, "--show-cdup")) {
580 const char *pfx = prefix;
e90fdc39
JS
581 if (!is_inside_work_tree()) {
582 const char *work_tree =
583 get_git_work_tree();
584 if (work_tree)
585 printf("%s\n", work_tree);
586 continue;
587 }
5f94c730
JH
588 while (pfx) {
589 pfx = strchr(pfx, '/');
590 if (pfx) {
591 pfx++;
592 printf("../");
593 }
594 }
595 putchar('\n');
596 continue;
597 }
a8783eeb
LT
598 if (!strcmp(arg, "--git-dir")) {
599 const char *gitdir = getenv(GIT_DIR_ENVIRONMENT);
600 static char cwd[PATH_MAX];
601 if (gitdir) {
602 puts(gitdir);
603 continue;
604 }
605 if (!prefix) {
606 puts(".git");
607 continue;
608 }
609 if (!getcwd(cwd, PATH_MAX))
0721c314 610 die_errno("unable to get current working directory");
a8783eeb
LT
611 printf("%s/.git\n", cwd);
612 continue;
613 }
6d9ba67b
JS
614 if (!strcmp(arg, "--is-inside-git-dir")) {
615 printf("%s\n", is_inside_git_dir() ? "true"
616 : "false");
617 continue;
618 }
892c41b9
ML
619 if (!strcmp(arg, "--is-inside-work-tree")) {
620 printf("%s\n", is_inside_work_tree() ? "true"
621 : "false");
622 continue;
623 }
493c774e
ML
624 if (!strcmp(arg, "--is-bare-repository")) {
625 printf("%s\n", is_bare_repository() ? "true"
626 : "false");
627 continue;
628 }
cc44c765 629 if (!prefixcmp(arg, "--since=")) {
c1babb1d
LT
630 show_datestring("--max-age=", arg+8);
631 continue;
632 }
cc44c765 633 if (!prefixcmp(arg, "--after=")) {
c1babb1d
LT
634 show_datestring("--max-age=", arg+8);
635 continue;
636 }
cc44c765 637 if (!prefixcmp(arg, "--before=")) {
c1babb1d
LT
638 show_datestring("--min-age=", arg+9);
639 continue;
640 }
cc44c765 641 if (!prefixcmp(arg, "--until=")) {
c1babb1d
LT
642 show_datestring("--min-age=", arg+8);
643 continue;
644 }
9523a4c2 645 if (show_flag(arg) && verify)
b1b35969 646 die_no_single_rev(quiet);
178cb243
LT
647 continue;
648 }
4866ccf0
JH
649
650 /* Not a flag argument */
3dd4e732
SB
651 if (try_difference(arg))
652 continue;
2122f8b9
BS
653 if (try_parent_shorthands(arg))
654 continue;
dfd1b749
CC
655 name = arg;
656 type = NORMAL;
657 if (*arg == '^') {
658 name++;
659 type = REVERSED;
800644c5 660 }
dfd1b749
CC
661 if (!get_sha1(name, sha1)) {
662 if (verify)
663 revs_count++;
664 else
665 show_rev(type, sha1, name);
800644c5
LT
666 continue;
667 }
75ecfce3
CC
668 if (verify)
669 die_no_single_rev(quiet);
9ad0a933
LT
670 as_is = 1;
671 if (!show_file(arg))
672 continue;
e23d0b4a 673 verify_filename(prefix, arg);
023d66ed 674 }
dfd1b749
CC
675 if (verify) {
676 if (revs_count == 1) {
677 show_rev(type, sha1, name);
678 return 0;
679 } else if (revs_count == 0 && show_default())
680 return 0;
b1b35969 681 die_no_single_rev(quiet);
dfd1b749
CC
682 } else
683 show_default();
178cb243
LT
684 return 0;
685}