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1.13 ! nicm 1: /* $OpenBSD: key-string.c,v 1.12 2009/12/03 22:50:10 nicm Exp $ */
1.1 nicm 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 },
1.7 nicm 60: { "Space", ' ' },
1.5 nicm 61: { "BSpace", KEYC_BSPACE },
1.6 nicm 62: { "Enter", '\r' },
63: { "Escape", '\033' },
1.1 nicm 64:
65: /* Arrow keys. */
66: { "Up", KEYC_UP },
67: { "Down", KEYC_DOWN },
68: { "Left", KEYC_LEFT },
69: { "Right", KEYC_RIGHT },
70:
71: /* Numeric keypad. */
1.9 nicm 72: { "KP/", KEYC_KP_SLASH },
73: { "KP*", KEYC_KP_STAR },
74: { "KP-", KEYC_KP_MINUS },
75: { "KP7", KEYC_KP_SEVEN },
76: { "KP8", KEYC_KP_EIGHT },
77: { "KP9", KEYC_KP_NINE },
78: { "KP+", KEYC_KP_PLUS },
79: { "KP4", KEYC_KP_FOUR },
80: { "KP5", KEYC_KP_FIVE },
81: { "KP6", KEYC_KP_SIX },
82: { "KP1", KEYC_KP_ONE },
83: { "KP2", KEYC_KP_TWO },
84: { "KP3", KEYC_KP_THREE },
85: { "KPEnter", KEYC_KP_ENTER },
86: { "KP0", KEYC_KP_ZERO },
87: { "KP.", KEYC_KP_PERIOD },
1.1 nicm 88: };
89:
1.10 nicm 90: /* Find key string in table. */
1.1 nicm 91: int
92: key_string_search_table(const char *string)
93: {
94: u_int i;
95:
96: for (i = 0; i < nitems(key_string_table); i++) {
97: if (strcasecmp(string, key_string_table[i].string) == 0)
98: return (key_string_table[i].key);
99: }
100: return (KEYC_NONE);
101: }
102:
1.10 nicm 103: /* Lookup a string and convert to a key value, handling C-/M-/S- prefix. */
1.1 nicm 104: int
105: key_string_lookup_string(const char *string)
106: {
107: int key;
1.11 nicm 108: const char *ptr;
1.1 nicm 109:
110: if (string[0] == '\0')
111: return (KEYC_NONE);
112: if (string[1] == '\0')
1.11 nicm 113: return ((u_char) string[0]);
1.1 nicm 114:
115: ptr = NULL;
1.4 nicm 116: if ((string[0] == 'C' || string[0] == 'c') && string[1] == '-')
1.1 nicm 117: ptr = string + 2;
118: else if (string[0] == '^')
119: ptr = string + 1;
120: if (ptr != NULL) {
121: if (ptr[0] == '\0')
122: return (KEYC_NONE);
1.10 nicm 123: /*
124: * Lookup as a named key. If a function key (>= KEYC_BASE),
125: * return it with the ctrl modifier, otherwise fallthrough with
126: * the key value from the table (eg for C-Space). If not a
127: * named key, check for single character keys and try that.
128: */
129: key = key_string_search_table(ptr);
130: if (key != KEYC_NONE) {
131: if (key >= KEYC_BASE)
132: return (key | KEYC_CTRL);
133: } else {
134: if (ptr[1] != '\0')
135: return (KEYC_NONE);
1.11 nicm 136: key = (u_char) ptr[0];
1.1 nicm 137: }
1.10 nicm 138:
1.12 nicm 139: /*
1.10 nicm 140: * Figure out if the single character in key is a valid ctrl
141: * key.
142: */
143: if (key == 32)
144: return (0);
145: if (key == 63)
146: return (KEYC_BSPACE);
147: if (key >= 64 && key <= 95)
148: return (key - 64);
149: if (key >= 97 && key <= 122)
150: return (key - 96);
1.1 nicm 151: return (KEYC_NONE);
152: }
1.12 nicm 153:
1.4 nicm 154: if ((string[0] == 'M' || string[0] == 'm') && string[1] == '-') {
1.1 nicm 155: ptr = string + 2;
156: if (ptr[0] == '\0')
157: return (KEYC_NONE);
1.10 nicm 158: key = key_string_lookup_string(ptr);
159: if (key != KEYC_NONE) {
160: if (key >= KEYC_BASE)
161: return (key | KEYC_ESCAPE);
162: } else {
163: if (ptr[1] == '\0')
1.1 nicm 164: return (KEYC_NONE);
1.11 nicm 165: key = (u_char) ptr[0];
1.1 nicm 166: }
1.10 nicm 167:
168: if (key >= 32 && key <= 127)
1.3 nicm 169: return (key | KEYC_ESCAPE);
1.13 ! nicm 170: return (KEYC_NONE);
! 171: }
! 172:
! 173: if ((string[0] == 'S' || string[0] == 's') && string[1] == '-') {
! 174: ptr = string + 2;
! 175: if (ptr[0] == '\0')
! 176: return (KEYC_NONE);
! 177: key = key_string_lookup_string(ptr);
! 178: if (key != KEYC_NONE) {
! 179: if (key >= KEYC_BASE)
! 180: return (key | KEYC_SHIFT);
! 181: } else {
! 182: if (ptr[1] == '\0')
! 183: return (KEYC_NONE);
! 184: key = (u_char) ptr[0];
! 185: }
! 186:
! 187: if (key >= 32 && key <= 127)
! 188: return (key | KEYC_SHIFT);
1.1 nicm 189: return (KEYC_NONE);
190: }
191:
192: return (key_string_search_table(string));
193: }
194:
1.10 nicm 195: /* Convert a key code into string format, with prefix if necessary. */
1.1 nicm 196: const char *
197: key_string_lookup_key(int key)
198: {
199: static char tmp[24], tmp2[24];
200: const char *s;
201: u_int i;
202:
203: if (key == 127)
204: return (NULL);
205:
1.3 nicm 206: if (key & KEYC_ESCAPE) {
207: if ((s = key_string_lookup_key(key & ~KEYC_ESCAPE)) == NULL)
1.1 nicm 208: return (NULL);
209: xsnprintf(tmp2, sizeof tmp2, "M-%s", s);
210: return (tmp2);
211: }
1.3 nicm 212: if (key & KEYC_CTRL) {
213: if ((s = key_string_lookup_key(key & ~KEYC_CTRL)) == NULL)
1.1 nicm 214: return (NULL);
215: xsnprintf(tmp2, sizeof tmp2, "C-%s", s);
216: return (tmp2);
217: }
1.3 nicm 218: if (key & KEYC_SHIFT) {
219: if ((s = key_string_lookup_key(key & ~KEYC_SHIFT)) == NULL)
1.1 nicm 220: return (NULL);
221: xsnprintf(tmp2, sizeof tmp2, "S-%s", s);
222: return (tmp2);
223: }
224:
1.6 nicm 225: for (i = 0; i < nitems(key_string_table); i++) {
226: if (key == key_string_table[i].key)
227: return (key_string_table[i].string);
228: }
229:
1.1 nicm 230: if (key >= 32 && key <= 255) {
1.11 nicm 231: tmp[0] = (char) key;
1.1 nicm 232: tmp[1] = '\0';
233: return (tmp);
234: }
235:
236: if (key >= 0 && key <= 32) {
237: if (key == 0 || key > 26)
238: xsnprintf(tmp, sizeof tmp, "C-%c", 64 + key);
239: else
240: xsnprintf(tmp, sizeof tmp, "C-%c", 96 + key);
241: return (tmp);
242: }
243:
244: return (NULL);
245: }