1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
|
/* $OpenBSD: key-string.c,v 1.24 2013/03/22 10:30:04 nicm Exp $ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <string.h>
#include "tmux.h"
int key_string_search_table(const char *);
int key_string_get_modifiers(const char **);
const struct {
const char *string;
int key;
} key_string_table[] = {
/* Function keys. */
{ "F1", KEYC_F1 },
{ "F2", KEYC_F2 },
{ "F3", KEYC_F3 },
{ "F4", KEYC_F4 },
{ "F5", KEYC_F5 },
{ "F6", KEYC_F6 },
{ "F7", KEYC_F7 },
{ "F8", KEYC_F8 },
{ "F9", KEYC_F9 },
{ "F10", KEYC_F10 },
{ "F11", KEYC_F11 },
{ "F12", KEYC_F12 },
{ "F13", KEYC_F13 },
{ "F14", KEYC_F14 },
{ "F15", KEYC_F15 },
{ "F16", KEYC_F16 },
{ "F17", KEYC_F17 },
{ "F18", KEYC_F18 },
{ "F19", KEYC_F19 },
{ "F20", KEYC_F20 },
{ "IC", KEYC_IC },
{ "DC", KEYC_DC },
{ "Home", KEYC_HOME },
{ "End", KEYC_END },
{ "NPage", KEYC_NPAGE },
{ "PageDown", KEYC_NPAGE },
{ "PgDn", KEYC_NPAGE },
{ "PPage", KEYC_PPAGE },
{ "PageUp", KEYC_PPAGE },
{ "PgUp", KEYC_PPAGE },
{ "Tab", '\011' },
{ "BTab", KEYC_BTAB },
{ "Space", ' ' },
{ "BSpace", KEYC_BSPACE },
{ "Enter", '\r' },
{ "Escape", '\033' },
/* Arrow keys. */
{ "Up", KEYC_UP },
{ "Down", KEYC_DOWN },
{ "Left", KEYC_LEFT },
{ "Right", KEYC_RIGHT },
/* Numeric keypad. */
{ "KP/", KEYC_KP_SLASH },
{ "KP*", KEYC_KP_STAR },
{ "KP-", KEYC_KP_MINUS },
{ "KP7", KEYC_KP_SEVEN },
{ "KP8", KEYC_KP_EIGHT },
{ "KP9", KEYC_KP_NINE },
{ "KP+", KEYC_KP_PLUS },
{ "KP4", KEYC_KP_FOUR },
{ "KP5", KEYC_KP_FIVE },
{ "KP6", KEYC_KP_SIX },
{ "KP1", KEYC_KP_ONE },
{ "KP2", KEYC_KP_TWO },
{ "KP3", KEYC_KP_THREE },
{ "KPEnter", KEYC_KP_ENTER },
{ "KP0", KEYC_KP_ZERO },
{ "KP.", KEYC_KP_PERIOD },
};
/* Find key string in table. */
int
key_string_search_table(const char *string)
{
u_int i;
for (i = 0; i < nitems(key_string_table); i++) {
if (strcasecmp(string, key_string_table[i].string) == 0)
return (key_string_table[i].key);
}
return (KEYC_NONE);
}
/* Find modifiers. */
int
key_string_get_modifiers(const char **string)
{
int modifiers;
modifiers = 0;
while (((*string)[0] != '\0') && (*string)[1] == '-') {
switch ((*string)[0]) {
case 'C':
case 'c':
modifiers |= KEYC_CTRL;
break;
case 'M':
case 'm':
modifiers |= KEYC_ESCAPE;
break;
case 'S':
case 's':
modifiers |= KEYC_SHIFT;
break;
}
*string += 2;
}
return (modifiers);
}
/* Lookup a string and convert to a key value. */
int
key_string_lookup_string(const char *string)
{
static const char *other = "!#()+,-.0123456789:;<=>?'\r\t";
int key, modifiers;
u_short u;
int size;
/* Is this a hexadecimal value? */
if (string[0] == '0' && string[1] == 'x') {
if (sscanf(string + 2, "%hx%n", &u, &size) != 1 || size > 4)
return (KEYC_NONE);
return (u);
}
/* Check for modifiers. */
modifiers = 0;
if (string[0] == '^' && string[1] != '\0') {
modifiers |= KEYC_CTRL;
string++;
}
modifiers |= key_string_get_modifiers(&string);
if (string[0] == '\0')
return (KEYC_NONE);
/* Is this a standard ASCII key? */
if (string[1] == '\0') {
key = (u_char) string[0];
if (key < 32 || key == 127 || key > 255)
return (KEYC_NONE);
} else {
/* Otherwise look the key up in the table. */
key = key_string_search_table(string);
if (key == KEYC_NONE)
return (KEYC_NONE);
}
/* Convert the standard control keys. */
if (key < KEYC_BASE && (modifiers & KEYC_CTRL) && !strchr(other, key)) {
if (key >= 97 && key <= 122)
key -= 96;
else if (key >= 64 && key <= 95)
key -= 64;
else if (key == 32)
key = 0;
else if (key == 63)
key = KEYC_BSPACE;
else
return (KEYC_NONE);
modifiers &= ~KEYC_CTRL;
}
return (key | modifiers);
}
/* Convert a key code into string format, with prefix if necessary. */
const char *
key_string_lookup_key(int key)
{
static char out[24];
char tmp[8];
u_int i;
*out = '\0';
/* Handle no key. */
if (key == KEYC_NONE)
return ("none");
/*
* Special case: display C-@ as C-Space. Could do this below in
* the (key >= 0 && key <= 32), but this way we let it be found
* in key_string_table, for the unlikely chance that we might
* change its name.
*/
if ((key & KEYC_MASK_KEY) == 0)
key = ' ' | KEYC_CTRL | (key & KEYC_MASK_MOD);
/* Fill in the modifiers. */
if (key & KEYC_CTRL)
strlcat(out, "C-", sizeof out);
if (key & KEYC_ESCAPE)
strlcat(out, "M-", sizeof out);
if (key & KEYC_SHIFT)
strlcat(out, "S-", sizeof out);
key &= KEYC_MASK_KEY;
/* Try the key against the string table. */
for (i = 0; i < nitems(key_string_table); i++) {
if (key == key_string_table[i].key)
break;
}
if (i != nitems(key_string_table)) {
strlcat(out, key_string_table[i].string, sizeof out);
return (out);
}
/* Invalid keys are errors. */
if (key == 127 || key > 255)
return (NULL);
/* Check for standard or control key. */
if (key >= 0 && key <= 32) {
if (key == 0 || key > 26)
xsnprintf(tmp, sizeof tmp, "C-%c", 64 + key);
else
xsnprintf(tmp, sizeof tmp, "C-%c", 96 + key);
} else if (key >= 32 && key <= 126) {
tmp[0] = key;
tmp[1] = '\0';
} else if (key >= 128)
xsnprintf(tmp, sizeof tmp, "\\%o", key);
strlcat(out, tmp, sizeof out);
return (out);
}
|
