| 1 | /* keymaps.c -- Functions and keymaps for the GNU Readline library. */ |
| 2 | |
| 3 | /* Copyright (C) 1988,1989-2009,2017 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of the GNU Readline Library (Readline), a library |
| 6 | for reading lines of text with interactive input and history editing. |
| 7 | |
| 8 | Readline is free software: you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation, either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | Readline is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with Readline. If not, see <http://www.gnu.org/licenses/>. |
| 20 | */ |
| 21 | |
| 22 | #define READLINE_LIBRARY |
| 23 | |
| 24 | #if defined (HAVE_CONFIG_H) |
| 25 | # include <config.h> |
| 26 | #endif |
| 27 | |
| 28 | #if defined (HAVE_STDLIB_H) |
| 29 | # include <stdlib.h> |
| 30 | #else |
| 31 | # include "ansi_stdlib.h" |
| 32 | #endif /* HAVE_STDLIB_H */ |
| 33 | |
| 34 | #include <stdio.h> /* for FILE * definition for readline.h */ |
| 35 | |
| 36 | #include "readline.h" |
| 37 | #include "rlconf.h" |
| 38 | |
| 39 | #include "emacs_keymap.c" |
| 40 | |
| 41 | #if defined (VI_MODE) |
| 42 | #include "vi_keymap.c" |
| 43 | #endif |
| 44 | |
| 45 | #include "xmalloc.h" |
| 46 | |
| 47 | /* **************************************************************** */ |
| 48 | /* */ |
| 49 | /* Functions for manipulating Keymaps. */ |
| 50 | /* */ |
| 51 | /* **************************************************************** */ |
| 52 | |
| 53 | |
| 54 | /* Return a new, empty keymap. |
| 55 | Free it with free() when you are done. */ |
| 56 | Keymap |
| 57 | rl_make_bare_keymap (void) |
| 58 | { |
| 59 | register int i; |
| 60 | Keymap keymap; |
| 61 | |
| 62 | keymap = (Keymap)xmalloc (KEYMAP_SIZE * sizeof (KEYMAP_ENTRY)); |
| 63 | for (i = 0; i < KEYMAP_SIZE; i++) |
| 64 | { |
| 65 | keymap[i].type = ISFUNC; |
| 66 | keymap[i].function = (rl_command_func_t *)NULL; |
| 67 | } |
| 68 | |
| 69 | #if 0 |
| 70 | for (i = 'A'; i < ('Z' + 1); i++) |
| 71 | { |
| 72 | keymap[i].type = ISFUNC; |
| 73 | keymap[i].function = rl_do_lowercase_version; |
| 74 | } |
| 75 | #endif |
| 76 | |
| 77 | return (keymap); |
| 78 | } |
| 79 | |
| 80 | /* A convenience function that returns 1 if there are no keys bound to |
| 81 | functions in KEYMAP */ |
| 82 | int |
| 83 | rl_empty_keymap (Keymap keymap) |
| 84 | { |
| 85 | int i; |
| 86 | |
| 87 | for (i = 0; i < ANYOTHERKEY; i++) |
| 88 | { |
| 89 | if (keymap[i].type != ISFUNC || keymap[i].function) |
| 90 | return 0; |
| 91 | } |
| 92 | return 1; |
| 93 | } |
| 94 | |
| 95 | /* Return a new keymap which is a copy of MAP. Just copies pointers, does |
| 96 | not copy text of macros or descend into child keymaps. */ |
| 97 | Keymap |
| 98 | rl_copy_keymap (Keymap map) |
| 99 | { |
| 100 | register int i; |
| 101 | Keymap temp; |
| 102 | |
| 103 | temp = rl_make_bare_keymap (); |
| 104 | for (i = 0; i < KEYMAP_SIZE; i++) |
| 105 | { |
| 106 | temp[i].type = map[i].type; |
| 107 | temp[i].function = map[i].function; |
| 108 | } |
| 109 | return (temp); |
| 110 | } |
| 111 | |
| 112 | /* Return a new keymap with the printing characters bound to rl_insert, |
| 113 | the uppercase Meta characters bound to run their lowercase equivalents, |
| 114 | and the Meta digits bound to produce numeric arguments. */ |
| 115 | Keymap |
| 116 | rl_make_keymap (void) |
| 117 | { |
| 118 | register int i; |
| 119 | Keymap newmap; |
| 120 | |
| 121 | newmap = rl_make_bare_keymap (); |
| 122 | |
| 123 | /* All ASCII printing characters are self-inserting. */ |
| 124 | for (i = ' '; i < 127; i++) |
| 125 | newmap[i].function = rl_insert; |
| 126 | |
| 127 | newmap[TAB].function = rl_insert; |
| 128 | newmap[RUBOUT].function = rl_rubout; /* RUBOUT == 127 */ |
| 129 | newmap[CTRL('H')].function = rl_rubout; |
| 130 | |
| 131 | #if KEYMAP_SIZE > 128 |
| 132 | /* Printing characters in ISO Latin-1 and some 8-bit character sets. */ |
| 133 | for (i = 128; i < 256; i++) |
| 134 | newmap[i].function = rl_insert; |
| 135 | #endif /* KEYMAP_SIZE > 128 */ |
| 136 | |
| 137 | return (newmap); |
| 138 | } |
| 139 | |
| 140 | /* Free the storage associated with MAP. */ |
| 141 | void |
| 142 | rl_discard_keymap (Keymap map) |
| 143 | { |
| 144 | int i; |
| 145 | |
| 146 | if (map == 0) |
| 147 | return; |
| 148 | |
| 149 | for (i = 0; i < KEYMAP_SIZE; i++) |
| 150 | { |
| 151 | switch (map[i].type) |
| 152 | { |
| 153 | case ISFUNC: |
| 154 | break; |
| 155 | |
| 156 | case ISKMAP: |
| 157 | rl_discard_keymap ((Keymap)map[i].function); |
| 158 | xfree ((char *)map[i].function); |
| 159 | break; |
| 160 | |
| 161 | case ISMACR: |
| 162 | xfree ((char *)map[i].function); |
| 163 | break; |
| 164 | } |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | /* Convenience function that discards, then frees, MAP. */ |
| 169 | void |
| 170 | rl_free_keymap (Keymap map) |
| 171 | { |
| 172 | rl_discard_keymap (map); |
| 173 | xfree ((char *)map); |
| 174 | } |