c3081fb7f9
texinfo-3.6 distribution to enable the use of the cursor keys. Since there is an open problem report (gnu/289) for this it might be of interest for (some of) you. I (Joerg) have also added a minor hack that makes info recognizing a window size change while it has been suspended. Submitted by: thomas@ghpc8.ihf.rwth-aachen.de (Thomas Gellekum)
329 lines
11 KiB
C
329 lines
11 KiB
C
/* infomap.c -- Keymaps for Info. */
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/* This file is part of GNU Info, a program for reading online documentation
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stored in Info format.
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Copyright (C) 1993 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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Written by Brian Fox (bfox@ai.mit.edu). */
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#include "stdio.h"
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#include "ctype.h"
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#include "infomap.h"
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#include "funs.h"
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#include "info.h"
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static void add_function_key(char *, VFunction *, Keymap);
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extern char *term_ku, *term_kd, *term_kr, *term_kl;
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extern char *term_kP, *term_kN, *term_kh, *term_kH;
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/* Return a new keymap which has all the uppercase letters mapped to run
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the function info_do_lowercase_version (). */
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Keymap
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keymap_make_keymap ()
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{
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register int i;
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Keymap keymap;
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keymap = (Keymap)xmalloc (256 * sizeof (KEYMAP_ENTRY));
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for (i = 0; i < 256; i++)
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{
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keymap[i].type = ISFUNC;
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keymap[i].function = (VFunction *)NULL;
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}
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for (i = 'A'; i < ('Z' + 1); i++)
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{
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keymap[i].type = ISFUNC;
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keymap[i].function = info_do_lowercase_version;
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}
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return (keymap);
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}
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/* Return a new keymap which is a copy of MAP. */
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Keymap
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keymap_copy_keymap (map)
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Keymap map;
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{
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register int i;
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Keymap keymap;
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keymap = keymap_make_keymap ();
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for (i = 0; i < 256; i++)
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{
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keymap[i].type = map[i].type;
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keymap[i].function = map[i].function;
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}
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return (keymap);
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}
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/* Free the keymap and it's descendents. */
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void
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keymap_discard_keymap (map)
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Keymap (map);
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{
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register int i;
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if (!map)
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return;
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for (i = 0; i < 256; i++)
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{
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switch (map[i].type)
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{
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case ISFUNC:
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break;
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case ISKMAP:
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keymap_discard_keymap ((Keymap)map[i].function);
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break;
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}
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}
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}
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/* Initialize the standard info keymaps. */
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Keymap info_keymap = (Keymap)NULL;
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Keymap echo_area_keymap = (Keymap)NULL;
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void
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initialize_info_keymaps ()
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{
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register int i;
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Keymap map;
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if (!info_keymap)
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{
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info_keymap = keymap_make_keymap ();
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info_keymap[ESC].type = ISKMAP;
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info_keymap[ESC].function = (VFunction *)keymap_make_keymap ();
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info_keymap[Control ('x')].type = ISKMAP;
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info_keymap[Control ('x')].function = (VFunction *)keymap_make_keymap ();
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echo_area_keymap = keymap_make_keymap ();
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echo_area_keymap[ESC].type = ISKMAP;
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echo_area_keymap[ESC].function = (VFunction *)keymap_make_keymap ();
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echo_area_keymap[Control ('x')].type = ISKMAP;
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echo_area_keymap[Control ('x')].function =
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(VFunction *)keymap_make_keymap ();
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}
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/* Bind numeric arg functions for both echo area and info window maps. */
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for (i = '0'; i < '9' + 1; i++)
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{
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((Keymap) info_keymap[ESC].function)[i].function =
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((Keymap) echo_area_keymap[ESC].function)[i].function =
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info_add_digit_to_numeric_arg;
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}
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((Keymap) info_keymap[ESC].function)['-'].function =
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((Keymap) echo_area_keymap[ESC].function)['-'].function =
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info_add_digit_to_numeric_arg;
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/* Bind the echo area routines. */
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map = echo_area_keymap;
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/* Bind the echo area insert routines. */
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for (i = 0; i < 160; i++)
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if (isprint (i))
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map[i].function = ea_insert;
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map[Control ('a')].function = ea_beg_of_line;
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map[Control ('b')].function = ea_backward;
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map[Control ('d')].function = ea_delete;
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map[Control ('e')].function = ea_end_of_line;
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map[Control ('f')].function = ea_forward;
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map[Control ('g')].function = ea_abort;
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map[Control ('h')].function = ea_rubout;
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map[Control ('k')].function = ea_kill_line;
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map[Control ('l')].function = info_redraw_display;
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map[Control ('q')].function = ea_quoted_insert;
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map[Control ('t')].function = ea_transpose_chars;
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map[Control ('u')].function = info_universal_argument;
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map[Control ('y')].function = ea_yank;
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map[LFD].function = ea_newline;
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map[RET].function = ea_newline;
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map[SPC].function = ea_complete;
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map[TAB].function = ea_complete;
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map['?'].function = ea_possible_completions;
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map[DEL].function = ea_rubout;
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/* Bind the echo area ESC keymap. */
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map = (Keymap)echo_area_keymap[ESC].function;
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map[Control ('g')].function = ea_abort;
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map[Control ('v')].function = ea_scroll_completions_window;
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map['b'].function = ea_backward_word;
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map['d'].function = ea_kill_word;
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map['f'].function = ea_forward_word;
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#if defined (NAMED_FUNCTIONS)
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/* map['x'].function = info_execute_command; */
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#endif /* NAMED_FUNCTIONS */
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map['y'].function = ea_yank_pop;
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map['?'].function = ea_possible_completions;
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map[TAB].function = ea_tab_insert;
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map[DEL].function = ea_backward_kill_word;
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/* Bind the echo area Control-x keymap. */
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map = (Keymap)echo_area_keymap[Control ('x')].function;
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map['o'].function = info_next_window;
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map[DEL].function = ea_backward_kill_line;
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/* Bind commands for Info window keymaps. */
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map = info_keymap;
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map[TAB].function = info_move_to_next_xref;
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map[LFD].function = info_select_reference_this_line;
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map[RET].function = info_select_reference_this_line;
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map[SPC].function = info_scroll_forward;
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map[Control ('a')].function = info_beginning_of_line;
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map[Control ('b')].function = info_backward_char;
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map[Control ('e')].function = info_end_of_line;
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map[Control ('f')].function = info_forward_char;
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map[Control ('g')].function = info_abort_key;
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map[Control ('h')].function = info_get_help_window;
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map[Control ('l')].function = info_redraw_display;
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map[Control ('n')].function = info_next_line;
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map[Control ('p')].function = info_prev_line;
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map[Control ('r')].function = isearch_backward;
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map[Control ('s')].function = isearch_forward;
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map[Control ('u')].function = info_universal_argument;
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map[Control ('v')].function = info_scroll_forward;
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map[','].function = info_next_index_match;
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for (i = '1'; i < '9' + 1; i++)
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map[i].function = info_menu_digit;
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map['0'].function = info_last_menu_item;
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map['<'].function = info_first_node;
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map['>'].function = info_last_node;
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map['?'].function = info_get_help_window;
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map['['].function = info_global_prev_node;
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map[']'].function = info_global_next_node;
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map['b'].function = info_beginning_of_node;
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map['d'].function = info_dir_node;
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map['e'].function = info_end_of_node;
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map['f'].function = info_xref_item;
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map['g'].function = info_goto_node;
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map['h'].function = info_get_info_help_node;
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map['i'].function = info_index_search;
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map['l'].function = info_history_node;
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map['m'].function = info_menu_item;
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map['n'].function = info_next_node;
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map['p'].function = info_prev_node;
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map['q'].function = info_quit;
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map['r'].function = info_xref_item;
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map['s'].function = info_search;
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map['t'].function = info_top_node;
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map['u'].function = info_up_node;
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map[DEL].function = info_scroll_backward;
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/* Bind members in the ESC map for Info windows. */
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map = (Keymap)info_keymap[ESC].function;
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map[Control ('f')].function = info_show_footnotes;
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map[Control ('g')].function = info_abort_key;
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map[TAB].function = info_move_to_prev_xref;
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map[Control ('v')].function = info_scroll_other_window;
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map['<'].function = info_beginning_of_node;
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map['>'].function = info_end_of_node;
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map['b'].function = info_backward_word;
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map['f'].function = info_forward_word;
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map['r'].function = info_move_to_window_line;
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map['v'].function = info_scroll_backward;
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#if defined (NAMED_FUNCTIONS)
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map['x'].function = info_execute_command;
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#endif /* NAMED_FUNCTIONS */
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/* Bind members in the Control-X map for Info windows. */
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map = (Keymap)info_keymap[Control ('x')].function;
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map[Control ('b')].function = list_visited_nodes;
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map[Control ('c')].function = info_quit;
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map[Control ('f')].function = info_view_file;
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map[Control ('g')].function = info_abort_key;
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map[Control ('v')].function = info_view_file;
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map['0'].function = info_delete_window;
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map['1'].function = info_keep_one_window;
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map['2'].function = info_split_window;
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map['^'].function = info_grow_window;
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map['b'].function = select_visited_node;
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map['k'].function = info_kill_node;
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map['o'].function = info_next_window;
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map['t'].function = info_tile_windows;
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map['w'].function = info_toggle_wrap;
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/* Add functions for the arrow keys, PageUp, PageDown, Home, HomeDown */
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add_function_key(term_ku, info_prev_line, info_keymap);
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add_function_key(term_kd, info_next_line, info_keymap);
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add_function_key(term_kl, info_backward_char, info_keymap);
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add_function_key(term_kr, info_forward_char, info_keymap);
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add_function_key(term_kP, info_scroll_backward, info_keymap);
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add_function_key(term_kN, info_scroll_forward, info_keymap);
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add_function_key(term_kh, info_beginning_of_node, info_keymap);
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add_function_key(term_kH, info_end_of_node, info_keymap);
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}
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static void add_function_key(char *esc_seq, VFunction *func, Keymap map)
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{
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char *end_str, *p;
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if (!esc_seq)
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return; /* don't add keys which don't exist */
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end_str = esc_seq + strlen(esc_seq);
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for (p = esc_seq; p < end_str; p++)
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{
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if (isupper(*p))
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*p = tolower(*p);
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switch (map[*p].type)
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{
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case ISKMAP: /* Go one level down. Also has the effect
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that we're not overwriting a previous
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binding if we're at the end of p */
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map = (Keymap)map[*p].function;
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break;
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case ISFUNC: /* two possibilities here:
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1. map[*p].function == NULL means we have
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a virgin keymap to fill;
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2. else this entry is already taken */
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if (map[*p].function == NULL)
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{
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if (p == end_str - 1)
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{
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map[*p].function = func;
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return;
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}
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map[*p].type = ISKMAP;
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map[*p].function = (VFunction *)keymap_make_keymap();
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map = (Keymap)map[*p].function;
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} else
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return;
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break;
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default: /* can't happen */
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info_error("unknown keymap type (%d).", map[*p].type);
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break;
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}
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}
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return;
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}
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