diff options
Diffstat (limited to 'soltools/cpp/_getopt.c')
-rw-r--r-- | soltools/cpp/_getopt.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/soltools/cpp/_getopt.c b/soltools/cpp/_getopt.c new file mode 100644 index 000000000000..65c5d5179a20 --- /dev/null +++ b/soltools/cpp/_getopt.c @@ -0,0 +1,74 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +#include <stdio.h> +#include <string.h> + +#define EPR fprintf(stderr, +#define ERR(str, chr) if(opterr) { EPR "%s%c\n", str, chr); } + +int opterr = 1; +int optind = 1; +int optopt; +char *optarg; + +int + stgetopt(int argc, char *const argv[], const char *opts) +{ + static int sp = 1; + register int c; + register char *cp; + + if (sp == 1) + { + if (optind >= argc || + argv[optind][0] != '-' || argv[optind][1] == '\0') + return -1; + else if (strcmp(argv[optind], "--") == 0) + { + optind++; + return -1; + } + else if (strcmp(argv[optind], "-isysroot") == 0) + { + // skip Mac OS X SDK selection flags + optind++; optind++; + } + } + optopt = c = argv[optind][sp]; + if (c == ':' || (cp = strchr(opts, c)) == 0) + { + ERR(": illegal option -- ", c); + if (argv[optind][++sp] == '\0') + { + optind++; + sp = 1; + } + return '?'; + } + if (*++cp == ':') + { + if (argv[optind][sp + 1] != '\0') + optarg = &argv[optind++][sp + 1]; + else + if (++optind >= argc) + { + ERR(": option requires an argument -- ", c); + sp = 1; + return '?'; + } + else + optarg = argv[optind++]; + sp = 1; + } + else + { + if (argv[optind][++sp] == '\0') + { + sp = 1; + optind++; + } + optarg = 0; + } + return c; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |