1 /* keymaps.c -- Functions and keymaps for the GNU Readline library. */ 2 3 /* Copyright (C) 1988,1989-2009 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 () 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 /* Return a new keymap which is a copy of MAP. Just copies pointers, does 81 not copy text of macros or descend into child keymaps. */ 82 Keymap 83 rl_copy_keymap (map) 84 Keymap map; 85 { 86 register int i; 87 Keymap temp; 88 89 temp = rl_make_bare_keymap (); 90 for (i = 0; i < KEYMAP_SIZE; i++) 91 { 92 temp[i].type = map[i].type; 93 temp[i].function = map[i].function; 94 } 95 return (temp); 96 } 97 98 /* Return a new keymap with the printing characters bound to rl_insert, 99 the uppercase Meta characters bound to run their lowercase equivalents, 100 and the Meta digits bound to produce numeric arguments. */ 101 Keymap 102 rl_make_keymap () 103 { 104 register int i; 105 Keymap newmap; 106 107 newmap = rl_make_bare_keymap (); 108 109 /* All ASCII printing characters are self-inserting. */ 110 for (i = ' '; i < 127; i++) 111 newmap[i].function = rl_insert; 112 113 newmap[TAB].function = rl_insert; 114 newmap[RUBOUT].function = rl_rubout; /* RUBOUT == 127 */ 115 newmap[CTRL('H')].function = rl_rubout; 116 117 #if KEYMAP_SIZE > 128 118 /* Printing characters in ISO Latin-1 and some 8-bit character sets. */ 119 for (i = 128; i < 256; i++) 120 newmap[i].function = rl_insert; 121 #endif /* KEYMAP_SIZE > 128 */ 122 123 return (newmap); 124 } 125 126 /* Free the storage associated with MAP. */ 127 void 128 rl_discard_keymap (map) 129 Keymap map; 130 { 131 int i; 132 133 if (map == 0) 134 return; 135 136 for (i = 0; i < KEYMAP_SIZE; i++) 137 { 138 switch (map[i].type) 139 { 140 case ISFUNC: 141 break; 142 143 case ISKMAP: 144 rl_discard_keymap ((Keymap)map[i].function); 145 xfree ((char *)map[i].function); 146 break; 147 148 case ISMACR: 149 xfree ((char *)map[i].function); 150 break; 151 } 152 } 153 } 154 155 /* Convenience function that discards, then frees, MAP. */ 156 void 157 rl_free_keymap (map) 158 Keymap map; 159 { 160 rl_discard_keymap (map); 161 xfree ((char *)map); 162 } 163