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session.h
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C/C++ Source or Header
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1995-06-16
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6KB
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147 lines
/* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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 `makedoc', 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_ */