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/* -*- 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: */
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