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
44struct keyname {
45    const char *string;
46    int key;
47};
48
49static 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
82int 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
105const 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