| 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */ |
| 2 | |
| 3 | /*@-type@*/ |
| 4 | /** \ingroup popt |
| 5 | * \file popt/popthelp.c |
| 6 | */ |
| 7 | |
| 8 | /* (C) 1998-2000 Red Hat, Inc. -- Licensing details are in the COPYING |
| 9 | file accompanying popt source distributions, available from |
| 10 | ftp://ftp.rpm.org/pub/rpm/dist. */ |
| 11 | |
| 12 | #include "system.h" |
| 13 | #include "poptint.h" |
| 14 | |
| 15 | /** |
| 16 | * @param con context |
| 17 | * @param key option(s) |
| 18 | */ |
| 19 | static void displayArgs(poptContext con, |
| 20 | /*@unused@*/ enum poptCallbackReason foo, |
| 21 | struct poptOption * key, |
| 22 | /*@unused@*/ const char * arg, /*@unused@*/ void * data) |
| 23 | /*@globals fileSystem@*/ |
| 24 | /*@modifies fileSystem@*/ |
| 25 | { |
| 26 | if (key->shortName == '?') |
| 27 | poptPrintHelp(con, stdout, 0); |
| 28 | else |
| 29 | poptPrintUsage(con, stdout, 0); |
| 30 | exit(0); |
| 31 | } |
| 32 | |
| 33 | #ifdef NOTYET |
| 34 | /*@unchecked@*/ |
| 35 | static int show_option_defaults = 0; |
| 36 | #endif |
| 37 | |
| 38 | /** |
| 39 | * Empty table marker to enable displaying popt alias/exec options. |
| 40 | */ |
| 41 | /*@observer@*/ /*@unchecked@*/ |
| 42 | struct poptOption poptAliasOptions[] = { |
| 43 | POPT_TABLEEND |
| 44 | }; |
| 45 | |
| 46 | /** |
| 47 | * Auto help table options. |
| 48 | */ |
| 49 | /*@-castfcnptr@*/ |
| 50 | /*@observer@*/ /*@unchecked@*/ |
| 51 | struct poptOption poptHelpOptions[] = { |
| 52 | { NULL, '\0', POPT_ARG_CALLBACK, (void *)&displayArgs, '\0', NULL, NULL }, |
| 53 | { "help", '?', 0, NULL, '?', N_("Show this help message"), NULL }, |
| 54 | { "usage", '\0', 0, NULL, 'u', N_("Display brief usage message"), NULL }, |
| 55 | #ifdef NOTYET |
| 56 | { "defaults", '\0', POPT_ARG_NONE, &show_option_defaults, 0, |
| 57 | N_("Display option defaults in message"), NULL }, |
| 58 | #endif |
| 59 | POPT_TABLEEND |
| 60 | } ; |
| 61 | /*@=castfcnptr@*/ |
| 62 | |
| 63 | /** |
| 64 | * @param table option(s) |
| 65 | */ |
| 66 | /*@observer@*/ /*@null@*/ static const char *const |
| 67 | getTableTranslationDomain(/*@null@*/ const struct poptOption *table) |
| 68 | /*@*/ |
| 69 | { |
| 70 | const struct poptOption *opt; |
| 71 | |
| 72 | if (table != NULL) |
| 73 | for (opt = table; opt->longName || opt->shortName || opt->arg; opt++) { |
| 74 | if (opt->argInfo == POPT_ARG_INTL_DOMAIN) |
| 75 | return opt->arg; |
| 76 | } |
| 77 | return NULL; |
| 78 | } |
| 79 | |
| 80 | /** |
| 81 | * @param opt option(s) |
| 82 | * @param translation_domain translation domain |
| 83 | */ |
| 84 | /*@observer@*/ /*@null@*/ static const char *const |
| 85 | getArgDescrip(const struct poptOption * opt, |
| 86 | /*@-paramuse@*/ /* FIX: wazzup? */ |
| 87 | /*@null@*/ const char * translation_domain) |
| 88 | /*@=paramuse@*/ |
| 89 | /*@*/ |
| 90 | { |
| 91 | if (!(opt->argInfo & POPT_ARG_MASK)) return NULL; |
| 92 | |
| 93 | if (opt == (poptHelpOptions + 1) || opt == (poptHelpOptions + 2)) |
| 94 | if (opt->argDescrip) return POPT_(opt->argDescrip); |
| 95 | |
| 96 | if (opt->argDescrip) return D_(translation_domain, opt->argDescrip); |
| 97 | |
| 98 | switch (opt->argInfo & POPT_ARG_MASK) { |
| 99 | case POPT_ARG_NONE: return POPT_("NONE"); |
| 100 | case POPT_ARG_VAL: return POPT_("VAL"); |
| 101 | case POPT_ARG_INT: return POPT_("INT"); |
| 102 | case POPT_ARG_LONG: return POPT_("LONG"); |
| 103 | case POPT_ARG_STRING: return POPT_("STRING"); |
| 104 | case POPT_ARG_FLOAT: return POPT_("FLOAT"); |
| 105 | case POPT_ARG_DOUBLE: return POPT_("DOUBLE"); |
| 106 | default: return POPT_("ARG"); |
| 107 | } |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * @param opt option(s) |
| 112 | * @param translation_domain translation domain |
| 113 | */ |
| 114 | static /*@only@*/ /*@null@*/ char * |
| 115 | singleOptionDefaultValue(int lineLength, |
| 116 | const struct poptOption * opt, |
| 117 | /*@-paramuse@*/ /* FIX: i18n macros disable with lclint */ |
| 118 | /*@null@*/ const char * translation_domain) |
| 119 | /*@=paramuse@*/ |
| 120 | /*@*/ |
| 121 | { |
| 122 | const char * defstr = D_(translation_domain, "default"); |
| 123 | char * le = malloc(4*lineLength + 1); |
| 124 | char * l = le; |
| 125 | |
| 126 | if (le == NULL) return NULL; /* XXX can't happen */ |
| 127 | *le = '\0'; |
| 128 | *le++ = '('; |
| 129 | strcpy(le, defstr); le += strlen(le); |
| 130 | *le++ = ':'; |
| 131 | *le++ = ' '; |
| 132 | if (opt->arg) /* XXX programmer error */ |
| 133 | switch (opt->argInfo & POPT_ARG_MASK) { |
| 134 | case POPT_ARG_VAL: |
| 135 | case POPT_ARG_INT: |
| 136 | { long aLong = *((int *)opt->arg); |
| 137 | sprintf(le, "%ld", aLong); |
| 138 | le += strlen(le); |
| 139 | } break; |
| 140 | case POPT_ARG_LONG: |
| 141 | { long aLong = *((long *)opt->arg); |
| 142 | sprintf(le, "%ld", aLong); |
| 143 | le += strlen(le); |
| 144 | } break; |
| 145 | case POPT_ARG_FLOAT: |
| 146 | { double aDouble = *((float *)opt->arg); |
| 147 | sprintf(le, "%g", aDouble); |
| 148 | le += strlen(le); |
| 149 | } break; |
| 150 | case POPT_ARG_DOUBLE: |
| 151 | { double aDouble = *((double *)opt->arg); |
| 152 | sprintf(le, "%g", aDouble); |
| 153 | le += strlen(le); |
| 154 | } break; |
| 155 | case POPT_ARG_STRING: |
| 156 | { const char * s = *(const char **)opt->arg; |
| 157 | if (s == NULL) { |
| 158 | strcpy(le, "null"); le += strlen(le); |
| 159 | } else { |
| 160 | size_t slen = 4*lineLength - (le - l) - sizeof("\"...\")"); |
| 161 | *le++ = '"'; |
| 162 | strncpy(le, s, slen); le[slen] = '\0'; le += strlen(le); |
| 163 | if (slen < strlen(s)) { |
| 164 | strcpy(le, "..."); le += strlen(le); |
| 165 | } |
| 166 | *le++ = '"'; |
| 167 | } |
| 168 | } break; |
| 169 | case POPT_ARG_NONE: |
| 170 | default: |
| 171 | l = _free(l); |
| 172 | return NULL; |
| 173 | /*@notreached@*/ break; |
| 174 | } |
| 175 | *le++ = ')'; |
| 176 | *le = '\0'; |
| 177 | |
| 178 | return l; |
| 179 | } |
| 180 | |
| 181 | /** |
| 182 | * @param fp output file handle |
| 183 | * @param opt option(s) |
| 184 | * @param translation_domain translation domain |
| 185 | */ |
| 186 | static void singleOptionHelp(FILE * fp, int maxLeftCol, |
| 187 | const struct poptOption * opt, |
| 188 | /*@null@*/ const char * translation_domain) |
| 189 | /*@globals fileSystem @*/ |
| 190 | /*@modifies *fp, fileSystem @*/ |
| 191 | { |
| 192 | int indentLength = maxLeftCol + 5; |
| 193 | int lineLength = 79 - indentLength; |
| 194 | const unsigned char * help = D_(translation_domain, opt->descrip); |
| 195 | const char * argDescrip = getArgDescrip(opt, translation_domain); |
| 196 | int helpLength; |
| 197 | unsigned char * defs = NULL; |
| 198 | unsigned char * left; |
| 199 | int nb = maxLeftCol + 1; |
| 200 | |
| 201 | /* Make sure there's more than enough room in target buffer. */ |
| 202 | if (opt->longName) nb += strlen(opt->longName); |
| 203 | if (argDescrip) nb += strlen(argDescrip); |
| 204 | |
| 205 | left = malloc(nb); |
| 206 | if (left == NULL) return; /* XXX can't happen */ |
| 207 | left[0] = '\0'; |
| 208 | left[maxLeftCol] = '\0'; |
| 209 | |
| 210 | if (opt->longName && opt->shortName) |
| 211 | sprintf(left, "-%c, %s%s", opt->shortName, |
| 212 | ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"), |
| 213 | opt->longName); |
| 214 | else if (opt->shortName != '\0') |
| 215 | sprintf(left, "-%c", opt->shortName); |
| 216 | else if (opt->longName) |
| 217 | sprintf(left, "%s%s", |
| 218 | ((opt->argInfo & POPT_ARGFLAG_ONEDASH) ? "-" : "--"), |
| 219 | opt->longName); |
| 220 | if (!*left) goto out; |
| 221 | if (argDescrip) { |
| 222 | char * le = left + strlen(left); |
| 223 | |
| 224 | if (opt->argInfo & POPT_ARGFLAG_OPTIONAL) |
| 225 | *le++ = '['; |
| 226 | |
| 227 | /* Choose type of output */ |
| 228 | /*@-branchstate@*/ |
| 229 | if (opt->argInfo & POPT_ARGFLAG_SHOW_DEFAULT) { |
| 230 | defs = singleOptionDefaultValue(lineLength, opt, translation_domain); |
| 231 | if (defs) { |
| 232 | char * t = malloc((help ? strlen(help) : 0) + |
| 233 | strlen(defs) + sizeof(" ")); |
| 234 | if (t) { |
| 235 | char * te = t; |
| 236 | *te = '\0'; |
| 237 | if (help) { |
| 238 | strcpy(te, help); te += strlen(te); |
| 239 | } |
| 240 | *te++ = ' '; |
| 241 | strcpy(te, defs); |
| 242 | defs = _free(defs); |
| 243 | } |
| 244 | defs = t; |
| 245 | } |
| 246 | } |
| 247 | /*@=branchstate@*/ |
| 248 | |
| 249 | if (opt->argDescrip == NULL) { |
| 250 | switch (opt->argInfo & POPT_ARG_MASK) { |
| 251 | case POPT_ARG_NONE: |
| 252 | break; |
| 253 | case POPT_ARG_VAL: |
| 254 | { long aLong = opt->val; |
| 255 | int ops = (opt->argInfo & POPT_ARGFLAG_LOGICALOPS); |
| 256 | int negate = (opt->argInfo & POPT_ARGFLAG_NOT); |
| 257 | |
| 258 | /* Don't bother displaying typical values */ |
| 259 | if (!ops && (aLong == 0L || aLong == 1L || aLong == -1L)) |
| 260 | break; |
| 261 | *le++ = '['; |
| 262 | switch (ops) { |
| 263 | case POPT_ARGFLAG_OR: |
| 264 | *le++ = '|'; |
| 265 | /*@innerbreak@*/ break; |
| 266 | case POPT_ARGFLAG_AND: |
| 267 | *le++ = '&'; |
| 268 | /*@innerbreak@*/ break; |
| 269 | case POPT_ARGFLAG_XOR: |
| 270 | *le++ = '^'; |
| 271 | /*@innerbreak@*/ break; |
| 272 | default: |
| 273 | /*@innerbreak@*/ break; |
| 274 | } |
| 275 | *le++ = '='; |
| 276 | if (negate) *le++ = '~'; |
| 277 | /*@-formatconst@*/ |
| 278 | sprintf(le, (ops ? "0x%lx" : "%ld"), aLong); |
| 279 | le += strlen(le); |
| 280 | /*@=formatconst@*/ |
| 281 | *le++ = ']'; |
| 282 | } break; |
| 283 | case POPT_ARG_INT: |
| 284 | case POPT_ARG_LONG: |
| 285 | case POPT_ARG_FLOAT: |
| 286 | case POPT_ARG_DOUBLE: |
| 287 | case POPT_ARG_STRING: |
| 288 | *le++ = '='; |
| 289 | strcpy(le, argDescrip); le += strlen(le); |
| 290 | break; |
| 291 | default: |
| 292 | break; |
| 293 | } |
| 294 | } else { |
| 295 | *le++ = '='; |
| 296 | strcpy(le, argDescrip); le += strlen(le); |
| 297 | } |
| 298 | if (opt->argInfo & POPT_ARGFLAG_OPTIONAL) |
| 299 | *le++ = ']'; |
| 300 | *le = '\0'; |
| 301 | } |
| 302 | |
| 303 | if (help) |
| 304 | fprintf(fp," %-*s ", maxLeftCol, left); |
| 305 | else { |
| 306 | fprintf(fp," %s\n", left); |
| 307 | goto out; |
| 308 | } |
| 309 | |
| 310 | left = _free(left); |
| 311 | if (defs) { |
| 312 | help = defs; defs = NULL; |
| 313 | } |
| 314 | |
| 315 | helpLength = strlen(help); |
| 316 | while (helpLength > lineLength) { |
| 317 | const unsigned char * ch; |
| 318 | char format[10]; |
| 319 | |
| 320 | ch = help + lineLength - 1; |
| 321 | while (ch > help && !isspace(*ch)) ch--; |
| 322 | if (ch == help) break; /* give up */ |
| 323 | while (ch > (help + 1) && isspace(*ch)) ch--; |
| 324 | ch++; |
| 325 | |
| 326 | sprintf(format, "%%.%ds\n%%%ds", (int) (ch - help), indentLength); |
| 327 | /*@-formatconst@*/ |
| 328 | fprintf(fp, format, help, " "); |
| 329 | /*@=formatconst@*/ |
| 330 | help = ch; |
| 331 | while (isspace(*help) && *help) help++; |
| 332 | helpLength = strlen(help); |
| 333 | } |
| 334 | |
| 335 | if (helpLength) fprintf(fp, "%s\n", help); |
| 336 | |
| 337 | out: |
| 338 | /*@-dependenttrans@*/ |
| 339 | defs = _free(defs); |
| 340 | /*@=dependenttrans@*/ |
| 341 | left = _free(left); |
| 342 | } |
| 343 | |
| 344 | /** |
| 345 | * @param opt option(s) |
| 346 | * @param translation_domain translation domain |
| 347 | */ |
| 348 | static int maxArgWidth(const struct poptOption * opt, |
| 349 | /*@null@*/ const char * translation_domain) |
| 350 | /*@*/ |
| 351 | { |
| 352 | int max = 0; |
| 353 | int len = 0; |
| 354 | const char * s; |
| 355 | |
| 356 | if (opt != NULL) |
| 357 | while (opt->longName || opt->shortName || opt->arg) { |
| 358 | if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) { |
| 359 | if (opt->arg) /* XXX program error */ |
| 360 | len = maxArgWidth(opt->arg, translation_domain); |
| 361 | if (len > max) max = len; |
| 362 | } else if (!(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) { |
| 363 | len = sizeof(" ")-1; |
| 364 | if (opt->shortName != '\0') len += sizeof("-X")-1; |
| 365 | if (opt->shortName != '\0' && opt->longName) len += sizeof(", ")-1; |
| 366 | if (opt->longName) { |
| 367 | len += ((opt->argInfo & POPT_ARGFLAG_ONEDASH) |
| 368 | ? sizeof("-")-1 : sizeof("--")-1); |
| 369 | len += strlen(opt->longName); |
| 370 | } |
| 371 | |
| 372 | s = getArgDescrip(opt, translation_domain); |
| 373 | if (s) |
| 374 | len += sizeof("=")-1 + strlen(s); |
| 375 | if (opt->argInfo & POPT_ARGFLAG_OPTIONAL) len += sizeof("[]")-1; |
| 376 | if (len > max) max = len; |
| 377 | } |
| 378 | |
| 379 | opt++; |
| 380 | } |
| 381 | |
| 382 | return max; |
| 383 | } |
| 384 | |
| 385 | /** |
| 386 | * Display popt alias and exec help. |
| 387 | * @param fp output file handle |
| 388 | * @param items alias/exec array |
| 389 | * @param nitems no. of alias/exec entries |
| 390 | * @param translation_domain translation domain |
| 391 | */ |
| 392 | static void itemHelp(FILE * fp, |
| 393 | /*@null@*/ poptItem items, int nitems, int left, |
| 394 | /*@null@*/ const char * translation_domain) |
| 395 | /*@globals fileSystem @*/ |
| 396 | /*@modifies *fp, fileSystem @*/ |
| 397 | { |
| 398 | poptItem item; |
| 399 | int i; |
| 400 | |
| 401 | if (items != NULL) |
| 402 | for (i = 0, item = items; i < nitems; i++, item++) { |
| 403 | const struct poptOption * opt; |
| 404 | opt = &item->option; |
| 405 | if ((opt->longName || opt->shortName) && |
| 406 | !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) |
| 407 | singleOptionHelp(fp, left, opt, translation_domain); |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | /** |
| 412 | * @param fp output file handle |
| 413 | * @param table option(s) |
| 414 | * @param translation_domain translation domain |
| 415 | */ |
| 416 | static void singleTableHelp(poptContext con, FILE * fp, |
| 417 | /*@null@*/ const struct poptOption * table, int left, |
| 418 | /*@null@*/ const char * translation_domain) |
| 419 | /*@globals fileSystem @*/ |
| 420 | /*@modifies *fp, fileSystem @*/ |
| 421 | { |
| 422 | const struct poptOption * opt; |
| 423 | const char *sub_transdom; |
| 424 | |
| 425 | if (table == poptAliasOptions) { |
| 426 | itemHelp(fp, con->aliases, con->numAliases, left, NULL); |
| 427 | itemHelp(fp, con->execs, con->numExecs, left, NULL); |
| 428 | return; |
| 429 | } |
| 430 | |
| 431 | if (table != NULL) |
| 432 | for (opt = table; (opt->longName || opt->shortName || opt->arg); opt++) { |
| 433 | if ((opt->longName || opt->shortName) && |
| 434 | !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) |
| 435 | singleOptionHelp(fp, left, opt, translation_domain); |
| 436 | } |
| 437 | |
| 438 | if (table != NULL) |
| 439 | for (opt = table; (opt->longName || opt->shortName || opt->arg); opt++) { |
| 440 | if ((opt->argInfo & POPT_ARG_MASK) != POPT_ARG_INCLUDE_TABLE) |
| 441 | continue; |
| 442 | sub_transdom = getTableTranslationDomain(opt->arg); |
| 443 | if (sub_transdom == NULL) |
| 444 | sub_transdom = translation_domain; |
| 445 | |
| 446 | if (opt->descrip) |
| 447 | fprintf(fp, "\n%s\n", D_(sub_transdom, opt->descrip)); |
| 448 | |
| 449 | singleTableHelp(con, fp, opt->arg, left, sub_transdom); |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | /** |
| 454 | * @param con context |
| 455 | * @param fp output file handle |
| 456 | */ |
| 457 | static int showHelpIntro(poptContext con, FILE * fp) |
| 458 | /*@globals fileSystem @*/ |
| 459 | /*@modifies *fp, fileSystem @*/ |
| 460 | { |
| 461 | int len = 6; |
| 462 | const char * fn; |
| 463 | |
| 464 | fprintf(fp, POPT_("Usage:")); |
| 465 | if (!(con->flags & POPT_CONTEXT_KEEP_FIRST)) { |
| 466 | /*@-nullderef@*/ /* LCL: wazzup? */ |
| 467 | fn = con->optionStack->argv[0]; |
| 468 | /*@=nullderef@*/ |
| 469 | if (fn == NULL) return len; |
| 470 | if (strchr(fn, '/')) fn = strrchr(fn, '/') + 1; |
| 471 | fprintf(fp, " %s", fn); |
| 472 | len += strlen(fn) + 1; |
| 473 | } |
| 474 | |
| 475 | return len; |
| 476 | } |
| 477 | |
| 478 | void poptPrintHelp(poptContext con, FILE * fp, /*@unused@*/ int flags) |
| 479 | { |
| 480 | int leftColWidth; |
| 481 | |
| 482 | (void) showHelpIntro(con, fp); |
| 483 | if (con->otherHelp) |
| 484 | fprintf(fp, " %s\n", con->otherHelp); |
| 485 | else |
| 486 | fprintf(fp, " %s\n", POPT_("[OPTION...]")); |
| 487 | |
| 488 | leftColWidth = maxArgWidth(con->options, NULL); |
| 489 | singleTableHelp(con, fp, con->options, leftColWidth, NULL); |
| 490 | } |
| 491 | |
| 492 | /** |
| 493 | * @param fp output file handle |
| 494 | * @param opt option(s) |
| 495 | * @param translation_domain translation domain |
| 496 | */ |
| 497 | static int singleOptionUsage(FILE * fp, int cursor, |
| 498 | const struct poptOption * opt, |
| 499 | /*@null@*/ const char *translation_domain) |
| 500 | /*@globals fileSystem @*/ |
| 501 | /*@modifies *fp, fileSystem @*/ |
| 502 | { |
| 503 | int len = 3; |
| 504 | char shortStr[2] = { '\0', '\0' }; |
| 505 | const char * item = shortStr; |
| 506 | const char * argDescrip = getArgDescrip(opt, translation_domain); |
| 507 | |
| 508 | if (opt->shortName!= '\0' ) { |
| 509 | if (!(opt->argInfo & POPT_ARG_MASK)) |
| 510 | return cursor; /* we did these already */ |
| 511 | len++; |
| 512 | shortStr[0] = opt->shortName; |
| 513 | shortStr[1] = '\0'; |
| 514 | } else if (opt->longName) { |
| 515 | len += 1 + strlen(opt->longName); |
| 516 | item = opt->longName; |
| 517 | } |
| 518 | |
| 519 | if (len == 3) return cursor; |
| 520 | |
| 521 | if (argDescrip) |
| 522 | len += strlen(argDescrip) + 1; |
| 523 | |
| 524 | if ((cursor + len) > 79) { |
| 525 | fprintf(fp, "\n "); |
| 526 | cursor = 7; |
| 527 | } |
| 528 | |
| 529 | fprintf(fp, " [-%s%s%s%s]", |
| 530 | ((opt->shortName || (opt->argInfo & POPT_ARGFLAG_ONEDASH)) ? "" : "-"), |
| 531 | item, |
| 532 | (argDescrip ? (opt->shortName != '\0' ? " " : "=") : ""), |
| 533 | (argDescrip ? argDescrip : "")); |
| 534 | |
| 535 | return cursor + len + 1; |
| 536 | } |
| 537 | |
| 538 | /** |
| 539 | * Display popt alias and exec usage. |
| 540 | * @param fp output file handle |
| 541 | * @param item alias/exec array |
| 542 | * @param nitems no. of ara/exec entries |
| 543 | * @param translation_domain translation domain |
| 544 | */ |
| 545 | static int itemUsage(FILE * fp, int cursor, poptItem item, int nitems, |
| 546 | /*@null@*/ const char * translation_domain) |
| 547 | /*@globals fileSystem @*/ |
| 548 | /*@modifies *fp, fileSystem @*/ |
| 549 | { |
| 550 | int i; |
| 551 | |
| 552 | /*@-branchstate@*/ /* FIX: W2DO? */ |
| 553 | if (item != NULL) |
| 554 | for (i = 0; i < nitems; i++, item++) { |
| 555 | const struct poptOption * opt; |
| 556 | opt = &item->option; |
| 557 | if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INTL_DOMAIN) { |
| 558 | translation_domain = (const char *)opt->arg; |
| 559 | } else if ((opt->longName || opt->shortName) && |
| 560 | !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) { |
| 561 | cursor = singleOptionUsage(fp, cursor, opt, translation_domain); |
| 562 | } |
| 563 | } |
| 564 | /*@=branchstate@*/ |
| 565 | |
| 566 | return cursor; |
| 567 | } |
| 568 | |
| 569 | /** |
| 570 | * @param fp output file handle |
| 571 | * @param opt option(s) |
| 572 | * @param translation_domain translation domain |
| 573 | */ |
| 574 | static int singleTableUsage(poptContext con, FILE * fp, |
| 575 | int cursor, const struct poptOption * opt, |
| 576 | /*@null@*/ const char * translation_domain) |
| 577 | /*@globals fileSystem @*/ |
| 578 | /*@modifies *fp, fileSystem @*/ |
| 579 | { |
| 580 | /*@-branchstate@*/ /* FIX: W2DO? */ |
| 581 | if (opt != NULL) |
| 582 | for (; (opt->longName || opt->shortName || opt->arg) ; opt++) { |
| 583 | if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INTL_DOMAIN) { |
| 584 | translation_domain = (const char *)opt->arg; |
| 585 | } else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) { |
| 586 | if (opt->arg) /* XXX program error */ |
| 587 | cursor = singleTableUsage(con, fp, cursor, opt->arg, |
| 588 | translation_domain); |
| 589 | } else if ((opt->longName || opt->shortName) && |
| 590 | !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) { |
| 591 | cursor = singleOptionUsage(fp, cursor, opt, translation_domain); |
| 592 | } |
| 593 | } |
| 594 | /*@=branchstate@*/ |
| 595 | |
| 596 | return cursor; |
| 597 | } |
| 598 | |
| 599 | /** |
| 600 | * Return concatenated short options for display. |
| 601 | * @param opt option(s) |
| 602 | * @param fp output file handle |
| 603 | * @retval str concatenation of short options |
| 604 | * @return length of display string |
| 605 | */ |
| 606 | static int showShortOptions(const struct poptOption * opt, FILE * fp, |
| 607 | /*@null@*/ char * str) |
| 608 | /*@globals fileSystem @*/ |
| 609 | /*@modifies *str, *fp, fileSystem @*/ |
| 610 | { |
| 611 | char * s = alloca(300); /* larger then the ascii set */ |
| 612 | |
| 613 | s[0] = '\0'; |
| 614 | /*@-branchstate@*/ /* FIX: W2DO? */ |
| 615 | if (str == NULL) { |
| 616 | memset(s, 0, sizeof(s)); |
| 617 | str = s; |
| 618 | } |
| 619 | /*@=branchstate@*/ |
| 620 | |
| 621 | if (opt != NULL) |
| 622 | for (; (opt->longName || opt->shortName || opt->arg); opt++) { |
| 623 | if (opt->shortName && !(opt->argInfo & POPT_ARG_MASK)) |
| 624 | str[strlen(str)] = opt->shortName; |
| 625 | else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) |
| 626 | if (opt->arg) /* XXX program error */ |
| 627 | (void) showShortOptions(opt->arg, fp, str); |
| 628 | } |
| 629 | |
| 630 | if (s != str || *s != '\0') |
| 631 | return 0; |
| 632 | |
| 633 | fprintf(fp, " [-%s]", s); |
| 634 | return strlen(s) + 4; |
| 635 | } |
| 636 | |
| 637 | void poptPrintUsage(poptContext con, FILE * fp, /*@unused@*/ int flags) |
| 638 | { |
| 639 | int cursor; |
| 640 | |
| 641 | cursor = showHelpIntro(con, fp); |
| 642 | cursor += showShortOptions(con->options, fp, NULL); |
| 643 | (void) singleTableUsage(con, fp, cursor, con->options, NULL); |
| 644 | (void) itemUsage(fp, cursor, con->aliases, con->numAliases, NULL); |
| 645 | (void) itemUsage(fp, cursor, con->execs, con->numExecs, NULL); |
| 646 | |
| 647 | if (con->otherHelp) { |
| 648 | cursor += strlen(con->otherHelp) + 1; |
| 649 | if (cursor > 79) fprintf(fp, "\n "); |
| 650 | fprintf(fp, " %s", con->otherHelp); |
| 651 | } |
| 652 | |
| 653 | fprintf(fp, "\n"); |
| 654 | } |
| 655 | |
| 656 | void poptSetOtherOptionHelp(poptContext con, const char * text) |
| 657 | { |
| 658 | con->otherHelp = _free(con->otherHelp); |
| 659 | con->otherHelp = xstrdup(text); |
| 660 | } |
| 661 | /*@=type@*/ |