1 /* $OpenBSD: key-string.c,v 1.8 2009/10/06 07:32:26 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER 15 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 16 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #include <sys/types.h> 20 21 #include <string.h> 22 23 #include "tmux.h" 24 25 int key_string_search_table(const char *); 26 27 struct { 28 const char *string; 29 int key; 30 } key_string_table[] = { 31 /* Function keys. */ 32 { "F1", KEYC_F1 }, 33 { "F2", KEYC_F2 }, 34 { "F3", KEYC_F3 }, 35 { "F4", KEYC_F4 }, 36 { "F5", KEYC_F5 }, 37 { "F6", KEYC_F6 }, 38 { "F7", KEYC_F7 }, 39 { "F8", KEYC_F8 }, 40 { "F9", KEYC_F9 }, 41 { "F10", KEYC_F10 }, 42 { "F11", KEYC_F11 }, 43 { "F12", KEYC_F12 }, 44 { "F13", KEYC_F13 }, 45 { "F14", KEYC_F14 }, 46 { "F15", KEYC_F15 }, 47 { "F16", KEYC_F16 }, 48 { "F17", KEYC_F17 }, 49 { "F18", KEYC_F18 }, 50 { "F19", KEYC_F19 }, 51 { "F20", KEYC_F20 }, 52 { "IC", KEYC_IC }, 53 { "DC", KEYC_DC }, 54 { "Home", KEYC_HOME }, 55 { "End", KEYC_END }, 56 { "NPage", KEYC_NPAGE }, 57 { "PPage", KEYC_PPAGE }, 58 { "Tab", '\011' }, 59 { "BTab", KEYC_BTAB }, 60 { "Space", ' ' }, 61 { "BSpace", KEYC_BSPACE }, 62 { "Enter", '\r' }, 63 { "Escape", '\033' }, 64 65 /* Arrow keys. */ 66 { "Up", KEYC_UP }, 67 { "Down", KEYC_DOWN }, 68 { "Left", KEYC_LEFT }, 69 { "Right", KEYC_RIGHT }, 70 71 /* Numeric keypad. */ 72 { "KP/", KEYC_KP0_1 }, 73 { "KP*", KEYC_KP0_2 }, 74 { "KP-", KEYC_KP0_3 }, 75 { "KP7", KEYC_KP1_0 }, 76 { "KP8", KEYC_KP1_1 }, 77 { "KP9", KEYC_KP1_2 }, 78 { "KP+", KEYC_KP1_3 }, 79 { "KP4", KEYC_KP2_0 }, 80 { "KP5", KEYC_KP2_1 }, 81 { "KP6", KEYC_KP2_2 }, 82 { "KP1", KEYC_KP3_0 }, 83 { "KP2", KEYC_KP3_1 }, 84 { "KP3", KEYC_KP3_2 }, 85 { "KPEnter", KEYC_KP3_3 }, 86 { "KP0", KEYC_KP4_0 }, 87 { "KP.", KEYC_KP4_2 }, 88 }; 89 90 int 91 key_string_search_table(const char *string) 92 { 93 u_int i; 94 95 for (i = 0; i < nitems(key_string_table); i++) { 96 if (strcasecmp(string, key_string_table[i].string) == 0) 97 return (key_string_table[i].key); 98 } 99 return (KEYC_NONE); 100 } 101 102 int 103 key_string_lookup_string(const char *string) 104 { 105 int key; 106 const u_char *ptr; 107 108 if (string[0] == '\0') 109 return (KEYC_NONE); 110 if (string[1] == '\0') 111 return (string[0]); 112 113 ptr = NULL; 114 if ((string[0] == 'C' || string[0] == 'c') && string[1] == '-') 115 ptr = string + 2; 116 else if (string[0] == '^') 117 ptr = string + 1; 118 if (ptr != NULL) { 119 if (ptr[0] == '\0') 120 return (KEYC_NONE); 121 if (ptr[1] == '\0') { 122 if (ptr[0] == 32) 123 return (0); 124 if (ptr[0] == 63) 125 return (KEYC_BSPACE); 126 if (ptr[0] >= 64 && ptr[0] <= 95) 127 return (ptr[0] - 64); 128 if (ptr[0] >= 97 && ptr[0] <= 122) 129 return (ptr[0] - 96); 130 return (KEYC_NONE); 131 } 132 key = key_string_search_table(ptr); 133 if (key != KEYC_NONE) 134 return (key | KEYC_CTRL); 135 return (KEYC_NONE); 136 } 137 138 if ((string[0] == 'M' || string[0] == 'm') && string[1] == '-') { 139 ptr = string + 2; 140 if (ptr[0] == '\0') 141 return (KEYC_NONE); 142 if (ptr[1] == '\0') { 143 if (ptr[0] < 32 || ptr[0] > 127) 144 return (KEYC_NONE); 145 return (ptr[0] | KEYC_ESCAPE); 146 } 147 key = key_string_lookup_string(ptr); 148 if (key != KEYC_NONE) 149 return (key | KEYC_ESCAPE); 150 return (KEYC_NONE); 151 } 152 153 return (key_string_search_table(string)); 154 } 155 156 const char * 157 key_string_lookup_key(int key) 158 { 159 static char tmp[24], tmp2[24]; 160 const char *s; 161 u_int i; 162 163 if (key == 127) 164 return (NULL); 165 166 if (key & KEYC_ESCAPE) { 167 if ((s = key_string_lookup_key(key & ~KEYC_ESCAPE)) == NULL) 168 return (NULL); 169 xsnprintf(tmp2, sizeof tmp2, "M-%s", s); 170 return (tmp2); 171 } 172 if (key & KEYC_CTRL) { 173 if ((s = key_string_lookup_key(key & ~KEYC_CTRL)) == NULL) 174 return (NULL); 175 xsnprintf(tmp2, sizeof tmp2, "C-%s", s); 176 return (tmp2); 177 } 178 if (key & KEYC_SHIFT) { 179 if ((s = key_string_lookup_key(key & ~KEYC_SHIFT)) == NULL) 180 return (NULL); 181 xsnprintf(tmp2, sizeof tmp2, "S-%s", s); 182 return (tmp2); 183 } 184 185 for (i = 0; i < nitems(key_string_table); i++) { 186 if (key == key_string_table[i].key) 187 return (key_string_table[i].string); 188 } 189 190 if (key >= 32 && key <= 255) { 191 tmp[0] = key; 192 tmp[1] = '\0'; 193 return (tmp); 194 } 195 196 if (key >= 0 && key <= 32) { 197 if (key == 0 || key > 26) 198 xsnprintf(tmp, sizeof tmp, "C-%c", 64 + key); 199 else 200 xsnprintf(tmp, sizeof tmp, "C-%c", 96 + key); 201 return (tmp); 202 } 203 204 return (NULL); 205 } 206