home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Aminet 24
/
Aminet 24 (1998)(GTI - Schatztruhe)[!][Apr 1998].iso
/
Aminet
/
dev
/
c
/
vbcc.lha
/
vbcc
/
vcpp
/
getopt.c
< prev
next >
Wrap
C/C++ Source or Header
|
1997-12-30
|
1KB
|
54 lines
#include <stdio.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;
char *strchr();
int
getopt (argc, argv, opts)
char **argv, *opts;
{
static int sp = 1;
register 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;
}
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;
}