1 /* session.h -- Functions found in session.c.
2 $Id: session.h,v 1.10 2001/11/16 23:17:15 karl Exp $
4 Copyright (C) 1993, 98, 99, 2001 Free Software Foundation, Inc.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 Written by Brian Fox (bfox@ai.mit.edu). */
28 /* All commands that can be invoked from within info_session () receive
29 arguments in the same way. This simple define declares the header
30 of a function named NAME, with associated documentation DOC. The
31 documentation string is groveled out of the source files by the
32 utility program `makedoc', which is also responsible for making
33 the documentation/function-pointer maps. */
34 #define DECLARE_INFO_COMMAND(name, doc) \
35 void name (window, count, key) WINDOW *window; int count; unsigned char key;
37 /* Variables found in session.h. */
38 extern VFunction *info_last_executed_command;
40 /* Variable controlling the garbage collection of files briefly visited
41 during searches. Such files are normally gc'ed, unless they were
42 compressed to begin with. If this variable is non-zero, it says
43 to gc even those file buffer contents which had to be uncompressed. */
44 extern int gc_compressed_files;
46 /* When non-zero, tiling takes place automatically when info_split_window
48 extern int auto_tiling_p;
50 /* Variable controlling the behaviour of default scrolling when you are
51 already at the bottom of a node. */
52 extern int info_scroll_behaviour;
53 extern char *info_scroll_choices[];
55 /* Values for info_scroll_behaviour. */
56 #define IS_Continuous 0 /* Try to get first menu item, or failing that, the
57 "Next:" pointer, or failing that, the "Up:" and
59 #define IS_NextOnly 1 /* Try to get "Next:" menu item. */
60 #define IS_PageOnly 2 /* Simply give up at the bottom of a node. */
62 /* Utility functions found in session.c */
63 extern void info_dispatch_on_key ();
64 extern unsigned char info_get_input_char (), info_get_another_input_char ();
65 extern unsigned char info_input_pending_p ();
66 extern void remember_window_and_node (), set_remembered_pagetop_and_point ();
67 extern void set_window_pagetop (), info_set_node_of_window ();
68 extern void initialize_keyseq (), add_char_to_keyseq ();
69 extern void info_gather_typeahead ();
70 extern FILE_BUFFER *file_buffer_of_window ();
71 extern long info_search_in_node (), info_target_search_node ();
72 extern void info_select_reference ();
73 extern int info_any_buffered_input_p ();
74 extern void print_node ();
75 extern void dump_node_to_file (), dump_nodes_to_file ();
76 extern char *program_name_from_file_name ();
78 /* Do the physical deletion of WINDOW, and forget this window and
80 extern void info_delete_window_internal ();
82 /* Tell Info that input is coming from the file FILENAME. */
83 extern void info_set_input_from_file ();
85 #define return_if_control_g(val) \
87 info_gather_typeahead (); \
88 if (info_input_pending_p () == Control ('g')) \
92 /* The names of the functions that run an info session. */
94 /* Starting an info session. */
95 extern void begin_multiple_window_info_session (), begin_info_session ();
96 extern void begin_info_session_with_error (), info_session ();
97 extern void info_read_and_dispatch ();
99 /* Moving the point within a node. */
100 extern void info_next_line (), info_prev_line ();
101 extern void info_end_of_line (), info_beginning_of_line ();
102 extern void info_forward_char (), info_backward_char ();
103 extern void info_forward_word (), info_backward_word ();
104 extern void info_beginning_of_node (), info_end_of_node ();
105 extern void info_move_to_prev_xref (), info_move_to_next_xref ();
107 /* Scrolling text within a window. */
108 extern void info_scroll_forward (), info_scroll_backward ();
109 extern void info_redraw_display (), info_toggle_wrap ();
110 extern void info_move_to_window_line ();
111 extern void info_up_line (), info_down_line ();
112 extern void info_scroll_half_screen_down (), info_scroll_half_screen_up ();
114 /* Manipulating multiple windows. */
115 extern void info_split_window (), info_delete_window ();
116 extern void info_keep_one_window (), info_grow_window ();
117 extern void info_scroll_other_window (), info_tile_windows ();
118 extern void info_next_window (), info_prev_window ();
120 /* Selecting nodes. */
121 extern void info_next_node (), info_prev_node (), info_up_node ();
122 extern void info_last_node (), info_first_node (), info_history_node ();
123 extern void info_goto_node (), info_top_node (), info_dir_node ();
124 extern void info_global_next_node (), info_global_prev_node ();
125 extern void info_kill_node (), info_view_file ();
126 extern void info_menu_sequence ();
127 extern NODE *info_follow_menus (/* initial_node, menus, errstr, errarg */);
129 /* Selecting cross references. */
130 extern void info_menu_digit (), info_menu_item (), info_xref_item ();
131 extern void info_find_menu (), info_select_reference_this_line ();
133 /* Hacking numeric arguments. */
134 extern int info_explicit_arg, info_numeric_arg, info_numeric_arg_sign;
136 extern void info_add_digit_to_numeric_arg (), info_universal_argument ();
137 extern void info_initialize_numeric_arg (), info_numeric_arg_digit_loop ();
139 /* Searching commands. */
140 extern void info_search (), isearch_forward (), isearch_backward ();
141 extern void info_search_case_sensitively (), info_search_backward ();
142 extern void info_search_next (), info_search_previous ();
144 /* Dumping and printing nodes. */
145 extern void info_print_node ();
147 /* Miscellaneous commands. */
148 extern void info_abort_key (), info_quit (), info_do_lowercase_version ();
150 #endif /* not SESSION_H */