| 1 | /* keymaps.c -- Functions and keymaps for the GNU Readline library. */ |
| 2 | |
| 3 | /* Copyright (C) 1988,1989 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Readline, a library for reading lines |
| 6 | of text with interactive input and history editing. |
| 7 | |
| 8 | Readline is free software; you can redistribute it and/or modify it |
| 9 | under the terms of the GNU General Public License as published by the |
| 10 | Free Software Foundation; either version 1, or (at your option) any |
| 11 | later version. |
| 12 | |
| 13 | Readline is distributed in the hope that it will be useful, but |
| 14 | WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with Readline; see the file COPYING. If not, write to the Free |
| 20 | Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 21 | |
| 22 | #include "keymaps.h" |
| 23 | #include "emacs_keymap.c" |
| 24 | |
| 25 | #ifdef VI_MODE |
| 26 | #include "vi_keymap.c" |
| 27 | #endif |
| 28 | |
| 29 | /* Remove these declarations when we have a complete libgnu.a. */ |
| 30 | /* #define STATIC_MALLOC */ |
| 31 | #if !defined (STATIC_MALLOC) |
| 32 | extern char *xmalloc (), *xrealloc (); |
| 33 | #else |
| 34 | static char *xmalloc (), *xrealloc (); |
| 35 | #endif /* STATIC_MALLOC */ |
| 36 | |
| 37 | /* **************************************************************** */ |
| 38 | /* */ |
| 39 | /* Functions for manipulating Keymaps. */ |
| 40 | /* */ |
| 41 | /* **************************************************************** */ |
| 42 | |
| 43 | |
| 44 | /* Return a new, empty keymap. |
| 45 | Free it with free() when you are done. */ |
| 46 | Keymap |
| 47 | rl_make_bare_keymap () |
| 48 | { |
| 49 | register int i; |
| 50 | Keymap keymap = (Keymap)xmalloc (128 * sizeof (KEYMAP_ENTRY)); |
| 51 | |
| 52 | for (i = 0; i < 128; i++) |
| 53 | { |
| 54 | keymap[i].type = ISFUNC; |
| 55 | keymap[i].function = (Function *)NULL; |
| 56 | } |
| 57 | |
| 58 | for (i = 'A'; i < ('Z' + 1); i++) |
| 59 | { |
| 60 | keymap[i].type = ISFUNC; |
| 61 | keymap[i].function = rl_do_lowercase_version; |
| 62 | } |
| 63 | |
| 64 | return (keymap); |
| 65 | } |
| 66 | |
| 67 | /* Return a new keymap which is a copy of MAP. */ |
| 68 | Keymap |
| 69 | rl_copy_keymap (map) |
| 70 | Keymap map; |
| 71 | { |
| 72 | register int i; |
| 73 | Keymap temp = rl_make_bare_keymap (); |
| 74 | |
| 75 | for (i = 0; i < 128; i++) |
| 76 | { |
| 77 | temp[i].type = map[i].type; |
| 78 | temp[i].function = map[i].function; |
| 79 | } |
| 80 | return (temp); |
| 81 | } |
| 82 | |
| 83 | /* Return a new keymap with the printing characters bound to rl_insert, |
| 84 | the uppercase Meta characters bound to run their lowercase equivalents, |
| 85 | and the Meta digits bound to produce numeric arguments. */ |
| 86 | Keymap |
| 87 | rl_make_keymap () |
| 88 | { |
| 89 | extern rl_insert (), rl_rubout (); |
| 90 | register int i; |
| 91 | Keymap newmap; |
| 92 | |
| 93 | newmap = rl_make_bare_keymap (); |
| 94 | |
| 95 | /* All printing characters are self-inserting. */ |
| 96 | for (i = ' '; i < 126; i++) |
| 97 | newmap[i].function = rl_insert; |
| 98 | |
| 99 | newmap[TAB].function = rl_insert; |
| 100 | newmap[RUBOUT].function = rl_rubout; |
| 101 | newmap[CTRL('H')].function = rl_rubout; |
| 102 | |
| 103 | return (newmap); |
| 104 | } |
| 105 | |
| 106 | /* Free the storage associated with MAP. */ |
| 107 | rl_discard_keymap (map) |
| 108 | Keymap (map); |
| 109 | { |
| 110 | int i; |
| 111 | |
| 112 | if (!map) |
| 113 | return; |
| 114 | |
| 115 | for (i = 0; i < 128; i++) |
| 116 | { |
| 117 | switch (map[i].type) |
| 118 | { |
| 119 | case ISFUNC: |
| 120 | break; |
| 121 | |
| 122 | case ISKMAP: |
| 123 | rl_discard_keymap ((Keymap)map[i].function); |
| 124 | break; |
| 125 | |
| 126 | case ISMACR: |
| 127 | free ((char *)map[i].function); |
| 128 | break; |
| 129 | } |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | #ifdef STATIC_MALLOC |
| 134 | \f |
| 135 | /* **************************************************************** */ |
| 136 | /* */ |
| 137 | /* xmalloc and xrealloc () */ |
| 138 | /* */ |
| 139 | /* **************************************************************** */ |
| 140 | |
| 141 | static void memory_error_and_abort (); |
| 142 | |
| 143 | static char * |
| 144 | xmalloc (bytes) |
| 145 | int bytes; |
| 146 | { |
| 147 | char *temp = (char *)malloc (bytes); |
| 148 | |
| 149 | if (!temp) |
| 150 | memory_error_and_abort (); |
| 151 | return (temp); |
| 152 | } |
| 153 | |
| 154 | static char * |
| 155 | xrealloc (pointer, bytes) |
| 156 | char *pointer; |
| 157 | int bytes; |
| 158 | { |
| 159 | char *temp; |
| 160 | |
| 161 | if (!pointer) |
| 162 | temp = (char *)malloc (bytes); |
| 163 | else |
| 164 | temp = (char *)realloc (pointer, bytes); |
| 165 | |
| 166 | if (!temp) |
| 167 | memory_error_and_abort (); |
| 168 | return (temp); |
| 169 | } |
| 170 | |
| 171 | static void |
| 172 | memory_error_and_abort () |
| 173 | { |
| 174 | fprintf (stderr, "readline: Out of virtual memory!\n"); |
| 175 | abort (); |
| 176 | } |
| 177 | #endif /* STATIC_MALLOC */ |