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- /* session.h -- Functions found in session.c. */
-
- /* This file is part of GNU Info, a program for reading online documentation
- stored in Info format.
-
- Copyright (C) 1993 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 2, 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, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Written by Brian Fox (bfox@ai.mit.edu). */
-
- #if !defined (_SESSION_H_)
- #define _SESSION_H_
-
- #include "general.h"
- #include "dribble.h"
-
- /* All commands that can be invoked from within info_session () receive
- arguments in the same way. This simple define declares the header
- of a function named NAME, with associated documentation DOC. The
- documentation string is groveled out of the source files by the
- utility program `builddoc', which is also responsible for making
- the documentation/function-pointer maps. */
- #define DECLARE_INFO_COMMAND(name, doc) \
- void name (window, count, key) WINDOW *window; int count; unsigned char key;
-
- /* Variables found in session.h. */
- extern VFunction *info_last_executed_command;
-
- /* Variable controlling the garbage collection of files briefly visited
- during searches. Such files are normally gc'ed, unless they were
- compressed to begin with. If this variable is non-zero, it says
- to gc even those file buffer contents which had to be uncompressed. */
- extern int gc_compressed_files;
-
- /* When non-zero, tiling takes place automatically when info_split_window
- is called. */
- extern int auto_tiling_p;
-
- /* Variable controlling the behaviour of default scrolling when you are
- already at the bottom of a node. */
- extern int info_scroll_behaviour;
- extern char *info_scroll_choices[];
-
- /* Values for info_scroll_behaviour. */
- #define IS_Continuous 0 /* Try to get first menu item, or failing that, the
- "Next:" pointer, or failing that, the "Up:" and
- "Next:" of the up. */
- #define IS_NextOnly 1 /* Try to get "Next:" menu item. */
- #define IS_PageOnly 2 /* Simply give up at the bottom of a node. */
-
- /* Utility functions found in session.c */
- extern void info_dispatch_on_key ();
- extern unsigned char info_get_input_char (), info_get_another_input_char ();
- extern unsigned char info_input_pending_p ();
- extern void remember_window_and_node (), set_remembered_pagetop_and_point ();
- extern void set_window_pagetop (), info_set_node_of_window ();
- extern char *pretty_keyseq ();
- extern void initialize_keyseq (), add_char_to_keyseq ();
- extern void info_gather_typeahead ();
- extern FILE_BUFFER *file_buffer_of_window ();
- extern long info_search_in_node (), info_target_search_node ();
- extern void info_select_reference ();
- extern int info_any_buffered_input_p ();
- extern void print_node ();
- extern void dump_node_to_file (), dump_nodes_to_file ();
-
- /* Do the physical deletion of WINDOW, and forget this window and
- associated nodes. */
- extern void info_delete_window_internal ();
-
- /* Tell Info that input is coming from the file FILENAME. */
- extern void info_set_input_from_file ();
-
- #define return_if_control_g(val) \
- do { \
- info_gather_typeahead (); \
- if (info_input_pending_p () == Control ('g')) \
- return (val); \
- } while (0)
-
- /* The names of the functions that run an info session. */
-
- /* Starting an info session. */
- extern void begin_multiple_window_info_session (), begin_info_session ();
- extern void begin_info_session_with_error (), info_session ();
- extern void info_read_and_dispatch ();
-
- /* Moving the point within a node. */
- extern void info_next_line (), info_prev_line ();
- extern void info_end_of_line (), info_beginning_of_line ();
- extern void info_forward_char (), info_backward_char ();
- extern void info_forward_word (), info_backward_word ();
- extern void info_beginning_of_node (), info_end_of_node ();
- extern void info_move_to_prev_xref (), info_move_to_next_xref ();
-
- /* Scrolling text within a window. */
- extern void info_scroll_forward (), info_scroll_backward ();
- extern void info_redraw_display (), info_toggle_wrap ();
- extern void info_move_to_window_line ();
-
- /* Manipulating multiple windows. */
- extern void info_split_window (), info_delete_window ();
- extern void info_keep_one_window (), info_grow_window ();
- extern void info_scroll_other_window (), info_tile_windows ();
- extern void info_next_window (), info_prev_window ();
-
- /* Selecting nodes. */
- extern void info_next_node (), info_prev_node (), info_up_node ();
- extern void info_last_node (), info_first_node (), info_history_node ();
- extern void info_goto_node (), info_top_node (), info_dir_node ();
- extern void info_global_next_node (), info_global_prev_node ();
- extern void info_kill_node (), info_view_file ();
-
- /* Selecting cross references. */
- extern void info_menu_digit (), info_menu_item (), info_xref_item ();
- extern void info_find_menu (), info_select_reference_this_line ();
-
- /* Hacking numeric arguments. */
- extern int info_explicit_arg, info_numeric_arg, info_numeric_arg_sign;
-
- extern void info_add_digit_to_numeric_arg (), info_universal_argument ();
- extern void info_initialize_numeric_arg (), info_numeric_arg_digit_loop ();
-
- /* Searching commands. */
- extern void info_search (), isearch_forward (), isearch_backward ();
-
- /* Dumping and printing nodes. */
- extern void info_print_node ();
-
- /* Miscellaneous commands. */
- extern void info_abort_key (), info_quit (), info_do_lowercase_version ();
-
- #endif /* _SESSION_H_ */
-