Import the arg.h from st with the fixed oob bug. - tabbed - tab interface for application supporting Xembed
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       ---
   DIR commit 4ccaba49681008900bacfd1eec23571d9b488619
   DIR parent 3c79bcb40808c31a9f8f47538f4f8d5c489b7f60
  HTML Author: Christoph Lohmann <20h@r-36.net>
       Date:   Sun, 21 Feb 2016 17:22:58 +0100
       
       Import the arg.h from st with the fixed oob bug.
       
       Diffstat:
         M arg.h                               |      44 ++++++++++++++-----------------
       
       1 file changed, 20 insertions(+), 24 deletions(-)
       ---
   DIR diff --git a/arg.h b/arg.h
       @@ -1,52 +1,48 @@
       -/* See the LICENSE file for copyright and license details. */
       +/*
       + * Copy me if you can.
       + * by 20h
       + */
        
       -#ifndef __ARG_H__
       -#define __ARG_H__
       +#ifndef ARG_H__
       +#define ARG_H__
        
        extern char *argv0;
        
       -#define USED(x)                ((void)(x))
       -
        /* use main(int argc, char *argv[]) */
        #define ARGBEGIN        for (argv0 = *argv, argv++, argc--;\
       -                                        argv[0] && argv[0][1]\
       -                                        && argv[0][0] == '-';\
       +                                        argv[0] && argv[0][0] == '-'\
       +                                        && argv[0][1];\
                                                argc--, argv++) {\
       -                                char _argc;\
       -                                char **_argv;\
       -                                int brk;\
       +                                char argc_;\
       +                                char **argv_;\
       +                                int brk_;\
                                        if (argv[0][1] == '-' && argv[0][2] == '\0') {\
                                                argv++;\
                                                argc--;\
                                                break;\
                                        }\
       -                                for (brk = 0, argv[0]++, _argv = argv;\
       -                                                argv[0][0] && !brk;\
       +                                for (brk_ = 0, argv[0]++, argv_ = argv;\
       +                                                argv[0][0] && !brk_;\
                                                        argv[0]++) {\
       -                                        if (_argv != argv)\
       +                                        if (argv_ != argv)\
                                                        break;\
       -                                        _argc = argv[0][0];\
       -                                        switch (_argc)
       -
       +                                        argc_ = argv[0][0];\
       +                                        switch (argc_)
        #define ARGEND                        }\
       -                                USED(_argc);\
       -                        }\
       -                        USED(argv);\
       -                        USED(argc);
       +                        }
        
       -#define ARGC()                _argc
       +#define ARGC()                argc_
        
        #define EARGF(x)        ((argv[0][1] == '\0' && argv[1] == NULL)?\
                                        ((x), abort(), (char *)0) :\
       -                                (brk = 1, (argv[0][1] != '\0')?\
       +                                (brk_ = 1, (argv[0][1] != '\0')?\
                                                (&argv[0][1]) :\
                                                (argc--, argv++, argv[0])))
        
        #define ARGF()                ((argv[0][1] == '\0' && argv[1] == NULL)?\
                                        (char *)0 :\
       -                                (brk = 1, (argv[0][1] != '\0')?\
       +                                (brk_ = 1, (argv[0][1] != '\0')?\
                                                (&argv[0][1]) :\
                                                (argc--, argv++, argv[0])))
        
        #endif
       -