2 * Copyright (c) 1980, 1992, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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34 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
39 static const char sccsid[] = "@(#)keyboard.c 8.1 (Berkeley) 6/6/93";
42 #include <sys/select.h>
55 static int keyboard_dispatch(int ch);
61 struct timeval last, intvl, now, tm;
64 /* Set initial timings */
65 gettimeofday(&last, NULL);
66 intvl.tv_sec = delay / 1000000;
67 intvl.tv_usec = delay % 1000000;
72 /* Determine interval to sleep */
73 (void)gettimeofday(&now, NULL);
74 tm.tv_sec = last.tv_sec + intvl.tv_sec - now.tv_sec;
75 tm.tv_usec = last.tv_usec + intvl.tv_usec - now.tv_usec;
76 while (tm.tv_usec < 0) {
77 tm.tv_usec += 1000000;
80 while (tm.tv_usec >= 1000000) {
81 tm.tv_usec -= 1000000;
85 /* We have to update screen immediately */
87 gettimeofday(&last, NULL);
93 FD_SET(STDIN_FILENO, &rfds);
94 n = select(STDIN_FILENO + 1, &rfds, NULL, NULL, &tm);
97 /* Read event on stdin */
100 if (keyboard_dispatch(ch) == 0) {
108 intvl.tv_sec = delay / 1000000;
109 intvl.tv_usec = delay % 1000000;
114 if (n < 0 && errno != EINTR)
117 /* Timeout or signal. Call display another time */
119 gettimeofday(&last, NULL);
125 keyboard_dispatch(int ch)
133 if (ch >= 'A' && ch <= 'Z')
136 if (ch == CTRL('l')) {
140 if (ch == CTRL('g')) {
149 if (ch == erasechar() && col > 0) {
150 if (col == 1 && line[0] == ':')
155 if (ch == CTRL('w') && col > 0) {
156 while (--col >= 0 && isspace(line[col]))
159 while (--col >= 0 && !isspace(line[col]))
160 if (col == 0 && line[0] == ':')
165 if (ch == killchar() && col > 0) {
174 if (isprint(ch) || ch == ' ') {
176 mvaddch(CMDLINE, col, ch);
180 if (col == 0 || (ch != '\r' && ch != '\n'))