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/* variables.h -- Description of user visible variables in Info.
$Id: variables.h,v 1.9 2008/03/04 09:45:27 gray Exp $
This file is part of GNU Info, a program for reading online documentation
stored in Info format.
Copyright (C) 1993, 1997, 2004, 2007 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Written by Brian Fox (bfox@ai.mit.edu). */
#ifndef INFO_VARIABLES_H
#define INFO_VARIABLES_H
/* A variable (in the Info sense) is an integer value with a user-visible
name. You may supply an array of strings to complete over when the
variable is set; in that case, the variable is set to the index of the
string that the user chose. If you supply a null list, the user can
set the variable to a numeric value. */
/* Structure describing a user visible variable. */
typedef struct {
char *name; /* Polite name. */
char *doc; /* Documentation string. */
int *value; /* Address of value. */
char **choices; /* Array of strings or NULL if numeric only. */
} VARIABLE_ALIST;
/* Read the name of an Info variable in the echo area and return the
address of a VARIABLE_ALIST member. A return value of NULL indicates
that no variable could be read. */
extern VARIABLE_ALIST *read_variable_name (const char *prompt, WINDOW *window);
/* Make an array of REFERENCE which actually contains the names of the
variables available in Info. */
extern REFERENCE **make_variable_completions_array (void);
/* Set the value of an info variable. */
extern void set_variable (WINDOW *window, int count, unsigned char key);
extern void describe_variable (WINDOW *window, int count, unsigned char key);
/* The list of user-visible variables. */
extern int auto_footnotes_p;
extern int auto_tiling_p;
extern int terminal_use_visible_bell_p;
extern int info_error_rings_bell_p;
extern int gc_compressed_files;
extern int show_index_match;
extern int info_scroll_behaviour;
extern int window_scroll_step;
extern int cursor_movement_scrolls_p;
extern int ISO_Latin_p;
extern int scroll_last_node;
#endif /* not INFO_VARIABLES_H */
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