1/* flags.h -- a list of all the flags that the shell knows about.  You add
2   a flag to this program by adding the name here, and in flags.c. */
3
4/* Copyright (C) 1993 Free Software Foundation, Inc.
5
6   This file is part of GNU Bash, the Bourne Again SHell.
7
8   Bash is free software; you can redistribute it and/or modify it under
9   the terms of the GNU General Public License as published by the Free
10   Software Foundation; either version 2, or (at your option) any later
11   version.
12
13   Bash is distributed in the hope that it will be useful, but WITHOUT ANY
14   WARRANTY; without even the implied warranty of MERCHANTABILITY or
15   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16   for more details.
17
18   You should have received a copy of the GNU General Public License along
19   with Bash; see the file COPYING.  If not, write to the Free Software
20   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
21
22#if !defined (_FLAGS_H_)
23#define _FLAGS_H_
24
25#include "stdc.h"
26
27/* Welcome to the world of Un*x, where everything is slightly backwards. */
28#define FLAG_ON '-'
29#define FLAG_OFF '+'
30
31#define FLAG_ERROR -1
32#define FLAG_UNKNOWN (int *)0
33
34/* The thing that we build the array of flags out of. */
35struct flags_alist {
36  char name;
37  int *value;
38};
39
40extern struct flags_alist shell_flags[];
41extern char optflags[];
42
43extern int
44  mark_modified_vars, exit_immediately_on_error, disallow_filename_globbing,
45  place_keywords_in_env, read_but_dont_execute,
46  just_one_command, unbound_vars_is_error, echo_input_at_read,
47  echo_command_at_execute, no_invisible_vars, noclobber,
48  hashing_enabled, forced_interactive, privileged_mode,
49  asynchronous_notification, interactive_comments, no_symbolic_links,
50  function_trace_mode, error_trace_mode, pipefail_opt;
51
52#if 0
53extern int lexical_scoping;
54#endif
55
56#if defined (BRACE_EXPANSION)
57extern int brace_expansion;
58#endif
59
60#if defined (BANG_HISTORY)
61extern int history_expansion;
62#endif /* BANG_HISTORY */
63
64#if defined (RESTRICTED_SHELL)
65extern int restricted;
66extern int restricted_shell;
67#endif /* RESTRICTED_SHELL */
68
69extern int *find_flag __P((int));
70extern int change_flag __P((int, int));
71extern char *which_set_flags __P((void));
72extern void reset_shell_flags __P((void));
73
74extern void initialize_flags __P((void));
75
76/* A macro for efficiency. */
77#define change_flag_char(flag, on_or_off)  change_flag (flag, on_or_off)
78
79#endif /* _FLAGS_H_ */
80