Update arg.h from sbase

sbase did some interesting modifications to arg.h (basically it
was fixed an incorrect use of the _ namespace), and this commit
take this last version for st.
master
Roberto E. Vargas Caballero 2013-12-18 08:29:28 +01:00
parent d60ee7337b
commit 33da67dac0
1 changed files with 28 additions and 20 deletions

48
arg.h
View File

@ -3,53 +3,61 @@
* by 20h * by 20h
*/ */
#ifndef __ARG_H__ #ifndef ARG_H__
#define __ARG_H__ #define ARG_H__
extern char *argv0; extern char *argv0;
#define USED(x) ((void)(x))
/* use main(int argc, char *argv[]) */ /* use main(int argc, char *argv[]) */
#define ARGBEGIN for (argv0 = *argv, argv++, argc--;\ #define ARGBEGIN for (argv0 = *argv, argv++, argc--;\
argv[0] && argv[0][1]\ argv[0] && argv[0][1]\
&& argv[0][0] == '-';\ && argv[0][0] == '-';\
argc--, argv++) {\ argc--, argv++) {\
char _argc;\ char argc_;\
char **_argv;\ char **argv_;\
int brk;\ int brk_;\
if (argv[0][1] == '-' && argv[0][2] == '\0') {\ if (argv[0][1] == '-' && argv[0][2] == '\0') {\
argv++;\ argv++;\
argc--;\ argc--;\
break;\ break;\
}\ }\
for (brk = 0, argv[0]++, _argv = argv;\ for (brk_ = 0, argv[0]++, argv_ = argv;\
argv[0][0] && !brk;\ argv[0][0] && !brk_;\
argv[0]++) {\ argv[0]++) {\
if (_argv != argv)\ if (argv_ != argv)\
break;\ break;\
_argc = argv[0][0];\ argc_ = argv[0][0];\
switch (_argc) switch (argc_)
/* Handles obsolete -NUM syntax */
#define ARGNUM case '0':\
case '1':\
case '2':\
case '3':\
case '4':\
case '5':\
case '6':\
case '7':\
case '8':\
case '9'
#define ARGEND }\ #define ARGEND }\
USED(_argc);\ }
}\
USED(argv);\
USED(argc);
#define ARGC() _argc #define ARGC() argc_
#define ARGNUMF(base) (brk_ = 1, estrtol(argv[0], (base)))
#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ #define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\
((x), abort(), (char *)0) :\ ((x), abort(), (char *)0) :\
(brk = 1, (argv[0][1] != '\0')?\ (brk_ = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\ (&argv[0][1]) :\
(argc--, argv++, argv[0]))) (argc--, argv++, argv[0])))
#define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\ #define ARGF() ((argv[0][1] == '\0' && argv[1] == NULL)?\
(char *)0 :\ (char *)0 :\
(brk = 1, (argv[0][1] != '\0')?\ (brk_ = 1, (argv[0][1] != '\0')?\
(&argv[0][1]) :\ (&argv[0][1]) :\
(argc--, argv++, argv[0]))) (argc--, argv++, argv[0])))
#endif #endif