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commit 999cf004901abed13cd7072e39f652d843d2f731
parent 4b4b2ac0790a51ea624397f829f29ed92e82fd53
Author: Aaron Marcher <me@drkhsh.at>
Date:   Thu, 10 Aug 2017 11:31:57 +0200

new arg.h version by frign

Diffstat:
MLICENSE | 3++-
Marg.h | 77++++++++++++++++++++++++++++-------------------------------------------------
2 files changed, 30 insertions(+), 50 deletions(-)

diff --git a/LICENSE b/LICENSE @@ -1,6 +1,7 @@ ISC License -Copyright (C) 2016-2017 Aaron Marcher +Copyright (C) 2016-2017 Aaron Marcher <me@drkhsh.at> +Copyright (C) 2017 Laslo Hunhold <dev@frign.de> Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice diff --git a/arg.h b/arg.h @@ -1,55 +1,34 @@ -/* - * Copy me if you can. - * by 20h - */ +/* See LICENSE file for copyright and license details. */ -#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] == '-';\ - argc--, argv++) {\ - 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;\ - argv[0]++) {\ - if (_argv != argv)\ - break;\ - _argc = argv[0][0];\ - switch (_argc) - -#define ARGEND }\ - USED(_argc);\ - }\ - USED(argv);\ - USED(argc); - -#define ARGC() _argc - -#define EARGF(x) ((argv[0][1] == '\0' && argv[1] == NULL)?\ - ((x), abort(), (char *)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')?\ - (&argv[0][1]) :\ - (argc--, argv++, argv[0]))) +/* int main(int argc, char *argv[]) */ +#define ARGBEGIN for (argv0 = *argv, *argv ? (argc--, argv++) : ((void *)0); \ + *argv && (*argv)[0] == '-' && (*argv)[1]; argc--, argv++) { \ + int i_, argused_; \ + if ((*argv)[1] == '-' && !(*argv)[2]) { \ + argc--, argv++; \ + break; \ + } \ + for (i_ = 1, argused_ = 0; (*argv)[i_]; i_++) { \ + switch((*argv)[i_]) +#define ARGEND if (argused_) { \ + if ((*argv)[i_ + 1]) { \ + break; \ + } else { \ + argc--, argv++; \ + break; \ + } \ + } \ + } \ + } +#define ARGC() ((*argv)[i_]) +#define ARGF_(x) (((*argv)[i_ + 1]) ? (argused_ = 1, &((*argv)[i_ + 1])) : \ + (*(argv + 1)) ? (argused_ = 1, *(argv + 1)) : (x)) +#define EARGF(x) ARGF_(((x), exit(1), (char *)0)) +#define ARGF() ARGF_((char *)0) #endif -