发布时间 : 星期二 文章h264转avi,编译通过源码更新完毕开始阅读12128e4033687e21af45a960
/* * GNU extension: * return non-option as argument to option 1 */ optarg = nargv[optind++]; return INORDER; } if (!PERMUTE) { /* * if no permutation wanted, stop parsing * at first non-option */ return -1; } /* do permutation */ if (nonopt_start == -1) nonopt_start = optind; else if (nonopt_end != -1) { permute_args(nonopt_start, nonopt_end, optind, nargv); nonopt_start = optind - (nonopt_end - nonopt_start); nonopt_end = -1; } optind++; /* process next argument */ goto start; } if (nonopt_start != -1 && nonopt_end == -1) nonopt_end = optind; if (place[1] && *++place == '-') { /* found \ place++; return -2; } }
if ((optchar = (int)*place++) == (int)':' ||
(oli = strchr(options + (IGNORE_FIRST ? 1 : 0), optchar)) == NULL) { /* option letter unknown or ':' */ if (!*place) ++optind; if (PRINT_ERROR) warnx(illoptchar, optchar); optopt = optchar; return BADCH;
}
}
if (optchar == 'W' && oli[1] == ';') { /* -W long-option */ /* XXX: what if no long options provided (called by getopt)? */ if (*place) return -2; if (++optind >= nargc) { /* no arg */ place = EMSG; if (PRINT_ERROR) warnx(recargchar, optchar); optopt = optchar; return BADARG; } else /* white space */ place = nargv[optind]; /* * Handle -W arg the same as --arg (which causes getopt to * stop parsing). */ return -2; }
if (*++oli != ':') { /* doesn't take argument */ if (!*place) ++optind; } else { /* takes (optional) argument */ optarg = NULL; if (*place) /* no white space */ optarg = place; /* XXX: disable test for :: if PC? (GNU doesn't) */ else if (oli[1] != ':') { /* arg not optional */ if (++optind >= nargc) { /* no arg */ place = EMSG; if (PRINT_ERROR) warnx(recargchar, optchar); optopt = optchar; return BADARG; } else optarg = nargv[optind]; } place = EMSG; ++optind; }
/* dump back option letter */ return optchar;
#ifdef REPLACE_GETOPT /*
* getopt --
* Parse argc/argv argument vector. *
* [eventually this will replace the real getopt] */ int
getopt(nargc, nargv, options) int nargc; char * const *nargv; const char *options; { int retval; _DIAGASSERT(nargv != NULL); _DIAGASSERT(options != NULL); if ((retval = getopt_internal(nargc, nargv, options)) == -2) { ++optind; /* * We found an option (--), so if we skipped non-options, * we have to permute. */ if (nonopt_end != -1) { permute_args(nonopt_start, nonopt_end, optind, nargv); optind -= nonopt_end - nonopt_start; } nonopt_start = nonopt_end = -1; retval = -1; } return retval; }
#endif /*
* getopt_long --
* Parse argc/argv argument vector. */ int
getopt_long(nargc, nargv, options, long_options, idx) int nargc;
{
char * const *nargv; const char *options;
const struct option *long_options; int *idx; int retval;
_DIAGASSERT(nargv != NULL); _DIAGASSERT(options != NULL);
_DIAGASSERT(long_options != NULL); /* idx may be NULL */
if ((retval = getopt_internal(nargc, nargv, options)) == -2) { char *current_argv, *has_equal; size_t current_argv_len; int i, match;
current_argv = place; match = -1; optind++; place = EMSG;
if (*current_argv == '\\0') { /* found \ /* * We found an option (--), so if we skipped * non-options, we have to permute. */ if (nonopt_end != -1) { permute_args(nonopt_start, nonopt_end, optind, nargv); optind -= nonopt_end - nonopt_start; } nonopt_start = nonopt_end = -1; return -1; }
if ((has_equal = strchr(current_argv, '=')) != NULL) { /* argument found (--option=arg) */ current_argv_len = has_equal - current_argv; has_equal++; } else current_argv_len = strlen(current_argv); for (i = 0; long_options[i].name; i++) {