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870117a261
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@28361 72102866-910b-0410-8b05-ffd578937521
74 lines
1.3 KiB
C
74 lines
1.3 KiB
C
/* Test/example program for the base library
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Copyright (C) 2005 Free Software Foundation, Inc.
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Copying and distribution of this file, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved.
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This file is part of the GNUstep Base Library.
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*/
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/* A simple implementation of getopt() */
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static int
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indexof(char c, char *string)
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{
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int i;
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for (i = 0; i < strlen(string); i++)
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{
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if (string[i] == c)
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{
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return i;
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}
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}
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return -1;
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}
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static char *optarg;
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static int optind;
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static char
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wgetopt(int argc, char **argv, char *options)
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{
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static char *arg;
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int index;
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char retval = '\0';
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optarg = NULL;
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if (optind == 0)
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{
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optind = 1;
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}
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while (optind < argc)
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{
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arg = argv[optind];
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if (strlen(arg) == 2)
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{
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if (arg[0] == '-')
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{
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if ((index = indexof(arg[1], options)) != -1)
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{
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retval = arg[1];
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if (index < strlen(options))
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{
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if (options[index+1] == ':')
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{
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if (optind < argc-1)
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{
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optind++;
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optarg = argv[optind];
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}
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else
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{
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return -1; /* ':' given, but argv exhausted */
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}
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}
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}
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}
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}
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}
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optind++;
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return retval;
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}
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return -1;
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}
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