1 /* ----------------------------------------------------------------------- *
2 *
3 * Copyright 2011 Intel Corporation; author: H. Peter Anvin
4 *
5 * Permission is hereby granted, free of charge, to any person
6 * obtaining a copy of this software and associated documentation
7 * files (the "Software"), to deal in the Software without
8 * restriction, including without limitation the rights to use,
9 * copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom
11 * the Software is furnished to do so, subject to the following
12 * conditions:
13 *
14 * The above copyright notice and this permission notice shall
15 * be included in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
19 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
21 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 * OTHER DEALINGS IN THE SOFTWARE.
25 *
26 * ----------------------------------------------------------------------- */
27
28 /*
29 * keyname.c
30 *
31 * Conversion between strings and get_key() key numbers.
32 */
33
34 #include <stdbool.h>
35 #include <stdio.h>
36 #include <string.h>
37 #include <errno.h>
38 #include <unistd.h>
39 #include <time.h>
40 #include <sys/times.h>
41 #include <getkey.h>
42 #include <libutil.h>
43
44 struct keyname {
45 const char *string;
46 int key;
47 };
48
49 static const struct keyname key_names[] = {
50 { "Backspace", KEY_BACKSPACE },
51 { "Tab", KEY_TAB },
52 { "Enter", KEY_ENTER },
53 { "Esc", KEY_ESC },
54 { "Escape", KEY_ESC },
55 { "Space", ' ' },
56 { "^?", KEY_DEL },
57 { "F1", KEY_F1 },
58 { "F2", KEY_F2},
59 { "F3", KEY_F3 },
60 { "F4", KEY_F4 },
61 { "F5", KEY_F5 },
62 { "F6", KEY_F6 },
63 { "F7", KEY_F7 },
64 { "F8", KEY_F8 },
65 { "F9", KEY_F9 },
66 { "F10", KEY_F10 },
67 { "F11", KEY_F11 },
68 { "F12", KEY_F12 },
69 { "Up", KEY_UP },
70 { "Down", KEY_DOWN },
71 { "Left", KEY_LEFT },
72 { "Right", KEY_RIGHT },
73 { "PgUp", KEY_PGUP },
74 { "PgDn", KEY_PGDN },
75 { "Home", KEY_HOME },
76 { "End", KEY_END },
77 { "Insert", KEY_INSERT },
78 { "Delete", KEY_DELETE },
79 { NULL, KEY_NONE }
80 };
81
key_name_to_code(const char * code)82 int key_name_to_code(const char *code)
83 {
84 const struct keyname *name;
85
86 if (code[0] && !code[1]) {
87 /* Single character */
88 return (unsigned char)code[0];
89 } else if (code[0] == '^' && code[1] && !code[2]) {
90 /* Control character */
91 if (code[1] == '?')
92 return 0x7f;
93 else
94 return (unsigned char)code[1] & 0x9f;
95 }
96
97
98 for (name = key_names; name->string; name++) {
99 if (!strcasecmp(name->string, code))
100 break;
101 }
102 return name->key; /* KEY_NONE at end of array */
103 }
104
key_code_to_name(int key)105 const char *key_code_to_name(int key)
106 {
107 static char buf[4];
108 const struct keyname *name;
109
110 if (key < 0)
111 return NULL;
112
113 if (key > ' ' && key < 0x100) {
114 if (key & 0x60) {
115 buf[0] = key;
116 buf[1] = '\0';
117 } else {
118 buf[0] = '^';
119 buf[1] = key | 0x40;
120 buf[2] = '\0';
121 }
122 return buf;
123 }
124
125 for (name = key_names; name->string; name++) {
126 if (key == name->key)
127 return name->string;
128 }
129
130 if (key < ' ') {
131 buf[0] = '^';
132 buf[1] = key | 0x40;
133 buf[2] = '\0';
134 return buf;
135 }
136
137 return NULL;
138 }
139