key-string.c revision 1.5
1/* $OpenBSD: key-string.c,v 1.5 2009/07/26 21:42:08 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 25int key_string_search_table(const char *); 26 27struct { 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 { "BSpace", KEYC_BSPACE }, 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_KP0_1 }, 70 { "KP*", KEYC_KP0_2 }, 71 { "KP-", KEYC_KP0_3 }, 72 { "KP7", KEYC_KP1_0 }, 73 { "KP8", KEYC_KP1_1 }, 74 { "KP9", KEYC_KP1_2 }, 75 { "KP+", KEYC_KP1_3 }, 76 { "KP4", KEYC_KP2_0 }, 77 { "KP5", KEYC_KP2_1 }, 78 { "KP6", KEYC_KP2_2 }, 79 { "KP1", KEYC_KP3_0 }, 80 { "KP2", KEYC_KP3_1 }, 81 { "KP3", KEYC_KP3_2 }, 82 { "KPEnter", KEYC_KP3_3 }, 83 { "KP0", KEYC_KP4_0 }, 84 { "KP.", KEYC_KP4_2 }, 85}; 86 87int 88key_string_search_table(const char *string) 89{ 90 u_int i; 91 92 for (i = 0; i < nitems(key_string_table); i++) { 93 if (strcasecmp(string, key_string_table[i].string) == 0) 94 return (key_string_table[i].key); 95 } 96 return (KEYC_NONE); 97} 98 99int 100key_string_lookup_string(const char *string) 101{ 102 int key; 103 const u_char *ptr; 104 105 if (string[0] == '\0') 106 return (KEYC_NONE); 107 if (string[1] == '\0') 108 return (string[0]); 109 110 ptr = NULL; 111 if ((string[0] == 'C' || string[0] == 'c') && string[1] == '-') 112 ptr = string + 2; 113 else if (string[0] == '^') 114 ptr = string + 1; 115 if (ptr != NULL) { 116 if (ptr[0] == '\0') 117 return (KEYC_NONE); 118 if (ptr[1] == '\0') { 119 if (ptr[0] == 32) 120 return (0); 121 if (ptr[0] >= 64 && ptr[0] <= 95) 122 return (ptr[0] - 64); 123 if (ptr[0] >= 97 && ptr[0] <= 122) 124 return (ptr[0] - 96); 125 return (KEYC_NONE); 126 } 127 key = key_string_search_table(ptr); 128 if (key != KEYC_NONE) 129 return (key | KEYC_CTRL); 130 return (KEYC_NONE); 131 } 132 133 if ((string[0] == 'M' || string[0] == 'm') && string[1] == '-') { 134 ptr = string + 2; 135 if (ptr[0] == '\0') 136 return (KEYC_NONE); 137 if (ptr[1] == '\0') { 138 if (ptr[0] < 32 || ptr[0] > 127) 139 return (KEYC_NONE); 140 return (ptr[0] | KEYC_ESCAPE); 141 } 142 key = key_string_lookup_string(ptr); 143 if (key != KEYC_NONE) 144 return (key | KEYC_ESCAPE); 145 return (KEYC_NONE); 146 } 147 148 return (key_string_search_table(string)); 149} 150 151const char * 152key_string_lookup_key(int key) 153{ 154 static char tmp[24], tmp2[24]; 155 const char *s; 156 u_int i; 157 158 if (key == 127) 159 return (NULL); 160 161 if (key & KEYC_ESCAPE) { 162 if ((s = key_string_lookup_key(key & ~KEYC_ESCAPE)) == NULL) 163 return (NULL); 164 xsnprintf(tmp2, sizeof tmp2, "M-%s", s); 165 return (tmp2); 166 } 167 if (key & KEYC_CTRL) { 168 if ((s = key_string_lookup_key(key & ~KEYC_CTRL)) == NULL) 169 return (NULL); 170 xsnprintf(tmp2, sizeof tmp2, "C-%s", s); 171 return (tmp2); 172 } 173 if (key & KEYC_SHIFT) { 174 if ((s = key_string_lookup_key(key & ~KEYC_SHIFT)) == NULL) 175 return (NULL); 176 xsnprintf(tmp2, sizeof tmp2, "S-%s", s); 177 return (tmp2); 178 } 179 180 if (key >= 32 && key <= 255) { 181 tmp[0] = key; 182 tmp[1] = '\0'; 183 return (tmp); 184 } 185 186 if (key >= 0 && key <= 32) { 187 if (key == 0 || key > 26) 188 xsnprintf(tmp, sizeof tmp, "C-%c", 64 + key); 189 else 190 xsnprintf(tmp, sizeof tmp, "C-%c", 96 + key); 191 return (tmp); 192 } 193 194 for (i = 0; i < nitems(key_string_table); i++) { 195 if (key == key_string_table[i].key) 196 return (key_string_table[i].string); 197 } 198 return (NULL); 199} 200