contrib/texinfo-4/info/variables.h

   1 /* variables.h -- Description of user visible variables in Info.
   2    $Id: variables.h,v 1.3 2004/04/11 17:56:46 karl Exp $
   3
   4    This file is part of GNU Info, a program for reading online documentation
   5    stored in Info format.
   6
   7    Copyright (C) 1993, 1997, 2004 Free Software Foundation, Inc.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 2, or (at your option)
  12    any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  22
  23    Written by Brian Fox (bfox@ai.mit.edu). */
  24
  25 #ifndef INFO_VARIABLES_H
  26 #define INFO_VARIABLES_H
  27
  28 /* A variable (in the Info sense) is an integer value with a user-visible
  29    name.  You may supply an array of strings to complete over when the
  30    variable is set; in that case, the variable is set to the index of the
  31    string that the user chose.  If you supply a null list, the user can
  32    set the variable to a numeric value. */
  33
  34 /* Structure describing a user visible variable. */
  35 typedef struct {
  36   char *name;                   /* Polite name. */
  37   char *doc;                    /* Documentation string. */
  38   int *value;                   /* Address of value. */
  39   char **choices;               /* Array of strings or NULL if numeric only. */
  40 } VARIABLE_ALIST;
  41
  42 /* Read the name of an Info variable in the echo area and return the
  43    address of a VARIABLE_ALIST member.  A return value of NULL indicates
  44    that no variable could be read. */
  45 extern VARIABLE_ALIST *read_variable_name (char *prompt, WINDOW *window);
  46
  47 /* Make an array of REFERENCE which actually contains the names of the
  48    variables available in Info. */
  49 extern REFERENCE **make_variable_completions_array (void);
  50
  51 /* Set the value of an info variable. */
  52 extern void set_variable (WINDOW *window, int count, unsigned char key);
  53 extern void describe_variable (WINDOW *window, int count, unsigned char key);
  54
  55 /* The list of user-visible variables. */
  56 extern int auto_footnotes_p;
  57 extern int auto_tiling_p;
  58 extern int terminal_use_visible_bell_p;
  59 extern int info_error_rings_bell_p;
  60 extern int gc_compressed_files;
  61 extern int show_index_match;
  62 extern int info_scroll_behaviour;
  63 extern int window_scroll_step;
  64 extern int ISO_Latin_p;
  65
  66 #endif /* not INFO_VARIABLES_H */