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	Import the arg.h from st with the fixed oob bug. - tabbed - tab interface for a…
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	---
	commit 4ccaba49681008900bacfd1eec23571d9b488619
	parent 3c79bcb40808c31a9f8f47538f4f8d5c489b7f60
	Author: Christoph Lohmann <[email protected]>
	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(-)
	---
	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
	-