key-string.c revision 1.1.1.8
1 /* $OpenBSD$ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott (at) gmail.com> 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 static key_code key_string_search_table(const char *); 26 static key_code key_string_get_modifiers(const char **); 27 28 static const struct { 29 const char *string; 30 key_code key; 31 } key_string_table[] = { 32 /* Function keys. */ 33 { "F1", KEYC_F1 }, 34 { "F2", KEYC_F2 }, 35 { "F3", KEYC_F3 }, 36 { "F4", KEYC_F4 }, 37 { "F5", KEYC_F5 }, 38 { "F6", KEYC_F6 }, 39 { "F7", KEYC_F7 }, 40 { "F8", KEYC_F8 }, 41 { "F9", KEYC_F9 }, 42 { "F10", KEYC_F10 }, 43 { "F11", KEYC_F11 }, 44 { "F12", KEYC_F12 }, 45 { "IC", KEYC_IC }, 46 { "DC", KEYC_DC }, 47 { "Home", KEYC_HOME }, 48 { "End", KEYC_END }, 49 { "NPage", KEYC_NPAGE }, 50 { "PageDown", KEYC_NPAGE }, 51 { "PgDn", KEYC_NPAGE }, 52 { "PPage", KEYC_PPAGE }, 53 { "PageUp", KEYC_PPAGE }, 54 { "PgUp", KEYC_PPAGE }, 55 { "Tab", '\011' }, 56 { "BTab", KEYC_BTAB }, 57 { "Space", ' ' }, 58 { "BSpace", KEYC_BSPACE }, 59 { "Enter", '\r' }, 60 { "Escape", '\033' }, 61 62 /* Arrow keys. */ 63 { "Up", KEYC_UP }, 64 { "Down", KEYC_DOWN }, 65 { "Left", KEYC_LEFT }, 66 { "Right", KEYC_RIGHT }, 67 68 /* Numeric keypad. */ 69 { "KP/", KEYC_KP_SLASH }, 70 { "KP*", KEYC_KP_STAR }, 71 { "KP-", KEYC_KP_MINUS }, 72 { "KP7", KEYC_KP_SEVEN }, 73 { "KP8", KEYC_KP_EIGHT }, 74 { "KP9", KEYC_KP_NINE }, 75 { "KP+", KEYC_KP_PLUS }, 76 { "KP4", KEYC_KP_FOUR }, 77 { "KP5", KEYC_KP_FIVE }, 78 { "KP6", KEYC_KP_SIX }, 79 { "KP1", KEYC_KP_ONE }, 80 { "KP2", KEYC_KP_TWO }, 81 { "KP3", KEYC_KP_THREE }, 82 { "KPEnter", KEYC_KP_ENTER }, 83 { "KP0", KEYC_KP_ZERO }, 84 { "KP.", KEYC_KP_PERIOD }, 85 86 /* Mouse keys. */ 87 KEYC_MOUSE_STRING(MOUSEDOWN1, MouseDown1), 88 KEYC_MOUSE_STRING(MOUSEDOWN2, MouseDown2), 89 KEYC_MOUSE_STRING(MOUSEDOWN3, MouseDown3), 90 KEYC_MOUSE_STRING(MOUSEUP1, MouseUp1), 91 KEYC_MOUSE_STRING(MOUSEUP2, MouseUp2), 92 KEYC_MOUSE_STRING(MOUSEUP3, MouseUp3), 93 KEYC_MOUSE_STRING(MOUSEDRAG1, MouseDrag1), 94 KEYC_MOUSE_STRING(MOUSEDRAG2, MouseDrag2), 95 KEYC_MOUSE_STRING(MOUSEDRAG3, MouseDrag3), 96 KEYC_MOUSE_STRING(MOUSEDRAGEND1, MouseDragEnd1), 97 KEYC_MOUSE_STRING(MOUSEDRAGEND2, MouseDragEnd2), 98 KEYC_MOUSE_STRING(MOUSEDRAGEND3, MouseDragEnd3), 99 KEYC_MOUSE_STRING(WHEELUP, WheelUp), 100 KEYC_MOUSE_STRING(WHEELDOWN, WheelDown), 101 KEYC_MOUSE_STRING(DOUBLECLICK1, DoubleClick1), 102 KEYC_MOUSE_STRING(DOUBLECLICK2, DoubleClick2), 103 KEYC_MOUSE_STRING(DOUBLECLICK3, DoubleClick3), 104 KEYC_MOUSE_STRING(TRIPLECLICK1, TripleClick1), 105 KEYC_MOUSE_STRING(TRIPLECLICK2, TripleClick2), 106 KEYC_MOUSE_STRING(TRIPLECLICK3, TripleClick3), 107 }; 108 109 /* Find key string in table. */ 110 static key_code 111 key_string_search_table(const char *string) 112 { 113 u_int i, user; 114 115 for (i = 0; i < nitems(key_string_table); i++) { 116 if (strcasecmp(string, key_string_table[i].string) == 0) 117 return (key_string_table[i].key); 118 } 119 120 if (sscanf(string, "User%u", &user) == 1 && user < KEYC_NUSER) 121 return (KEYC_USER + user); 122 123 return (KEYC_UNKNOWN); 124 } 125 126 /* Find modifiers. */ 127 static key_code 128 key_string_get_modifiers(const char **string) 129 { 130 key_code modifiers; 131 132 modifiers = 0; 133 while (((*string)[0] != '\0') && (*string)[1] == '-') { 134 switch ((*string)[0]) { 135 case 'C': 136 case 'c': 137 modifiers |= KEYC_CTRL; 138 break; 139 case 'M': 140 case 'm': 141 modifiers |= KEYC_ESCAPE; 142 break; 143 case 'S': 144 case 's': 145 modifiers |= KEYC_SHIFT; 146 break; 147 default: 148 *string = NULL; 149 return (0); 150 } 151 *string += 2; 152 } 153 return (modifiers); 154 } 155 156 /* Lookup a string and convert to a key value. */ 157 key_code 158 key_string_lookup_string(const char *string) 159 { 160 static const char *other = "!#()+,-.0123456789:;<=>?'\r\t"; 161 key_code key; 162 u_int u; 163 key_code modifiers; 164 struct utf8_data ud; 165 u_int i; 166 enum utf8_state more; 167 wchar_t wc; 168 169 /* Is this no key? */ 170 if (strcasecmp(string, "None") == 0) 171 return (KEYC_NONE); 172 173 /* Is this a hexadecimal value? */ 174 if (string[0] == '0' && string[1] == 'x') { 175 if (sscanf(string + 2, "%x", &u) != 1) 176 return (KEYC_UNKNOWN); 177 if (u > 0x1fffff) 178 return (KEYC_UNKNOWN); 179 return (u); 180 } 181 182 /* Check for modifiers. */ 183 modifiers = 0; 184 if (string[0] == '^' && string[1] != '\0') { 185 modifiers |= KEYC_CTRL; 186 string++; 187 } 188 modifiers |= key_string_get_modifiers(&string); 189 if (string == NULL || string[0] == '\0') 190 return (KEYC_UNKNOWN); 191 192 /* Is this a standard ASCII key? */ 193 if (string[1] == '\0' && (u_char)string[0] <= 127) { 194 key = (u_char)string[0]; 195 if (key < 32 || key == 127) 196 return (KEYC_UNKNOWN); 197 } else { 198 /* Try as a UTF-8 key. */ 199 if ((more = utf8_open(&ud, (u_char)*string)) == UTF8_MORE) { 200 if (strlen(string) != ud.size) 201 return (KEYC_UNKNOWN); 202 for (i = 1; i < ud.size; i++) 203 more = utf8_append(&ud, (u_char)string[i]); 204 if (more != UTF8_DONE) 205 return (KEYC_UNKNOWN); 206 if (utf8_combine(&ud, &wc) != UTF8_DONE) 207 return (KEYC_UNKNOWN); 208 return (wc | modifiers); 209 } 210 211 /* Otherwise look the key up in the table. */ 212 key = key_string_search_table(string); 213 if (key == KEYC_UNKNOWN) 214 return (KEYC_UNKNOWN); 215 } 216 217 /* Convert the standard control keys. */ 218 if (key < KEYC_BASE && (modifiers & KEYC_CTRL) && !strchr(other, key)) { 219 if (key >= 97 && key <= 122) 220 key -= 96; 221 else if (key >= 64 && key <= 95) 222 key -= 64; 223 else if (key == 32) 224 key = 0; 225 else if (key == 63) 226 key = KEYC_BSPACE; 227 else 228 return (KEYC_UNKNOWN); 229 modifiers &= ~KEYC_CTRL; 230 } 231 232 return (key | modifiers); 233 } 234 235 /* Convert a key code into string format, with prefix if necessary. */ 236 const char * 237 key_string_lookup_key(key_code key) 238 { 239 static char out[32]; 240 char tmp[8]; 241 u_int i; 242 struct utf8_data ud; 243 size_t off; 244 245 *out = '\0'; 246 247 /* Handle no key. */ 248 if (key == KEYC_NONE) 249 return ("None"); 250 251 /* Handle special keys. */ 252 if (key == KEYC_UNKNOWN) 253 return ("Unknown"); 254 if (key == KEYC_FOCUS_IN) 255 return ("FocusIn"); 256 if (key == KEYC_FOCUS_OUT) 257 return ("FocusOut"); 258 if (key == KEYC_PASTE_START) 259 return ("PasteStart"); 260 if (key == KEYC_PASTE_END) 261 return ("PasteEnd"); 262 if (key == KEYC_MOUSE) 263 return ("Mouse"); 264 if (key == KEYC_DRAGGING) 265 return ("Dragging"); 266 if (key == KEYC_MOUSEMOVE_PANE) 267 return ("MouseMovePane"); 268 if (key == KEYC_MOUSEMOVE_STATUS) 269 return ("MouseMoveStatus"); 270 if (key == KEYC_MOUSEMOVE_BORDER) 271 return ("MouseMoveBorder"); 272 if (key >= KEYC_USER && key < KEYC_USER + KEYC_NUSER) { 273 snprintf(out, sizeof out, "User%u", (u_int)(key - KEYC_USER)); 274 return (out); 275 } 276 277 /* 278 * Special case: display C-@ as C-Space. Could do this below in 279 * the (key >= 0 && key <= 32), but this way we let it be found 280 * in key_string_table, for the unlikely chance that we might 281 * change its name. 282 */ 283 if ((key & KEYC_MASK_KEY) == 0) 284 key = ' ' | KEYC_CTRL | (key & KEYC_MASK_MOD); 285 286 /* Fill in the modifiers. */ 287 if (key & KEYC_CTRL) 288 strlcat(out, "C-", sizeof out); 289 if (key & KEYC_ESCAPE) 290 strlcat(out, "M-", sizeof out); 291 if (key & KEYC_SHIFT) 292 strlcat(out, "S-", sizeof out); 293 key &= KEYC_MASK_KEY; 294 295 /* Try the key against the string table. */ 296 for (i = 0; i < nitems(key_string_table); i++) { 297 if (key == key_string_table[i].key) 298 break; 299 } 300 if (i != nitems(key_string_table)) { 301 strlcat(out, key_string_table[i].string, sizeof out); 302 return (out); 303 } 304 305 /* Is this a UTF-8 key? */ 306 if (key > 127 && key < KEYC_BASE) { 307 if (utf8_split(key, &ud) == UTF8_DONE) { 308 off = strlen(out); 309 memcpy(out + off, ud.data, ud.size); 310 out[off + ud.size] = '\0'; 311 return (out); 312 } 313 } 314 315 /* Invalid keys are errors. */ 316 if (key == 127 || key > 255) { 317 snprintf(out, sizeof out, "Invalid#%llx", key); 318 return (out); 319 } 320 321 /* Check for standard or control key. */ 322 if (key <= 32) { 323 if (key == 0 || key > 26) 324 xsnprintf(tmp, sizeof tmp, "C-%c", (int)(64 + key)); 325 else 326 xsnprintf(tmp, sizeof tmp, "C-%c", (int)(96 + key)); 327 } else if (key >= 32 && key <= 126) { 328 tmp[0] = key; 329 tmp[1] = '\0'; 330 } else if (key >= 128) 331 xsnprintf(tmp, sizeof tmp, "\\%llo", key); 332 333 strlcat(out, tmp, sizeof out); 334 return (out); 335 } 336
Indexes created Tue Apr 28 00:22:25 UTC 2026