1 /* @(#)wwgets.c 8.1 (Berkeley) 6/6/93 */
2 /* $NetBSD: wwgets.c,v 1.9 2003/08/07 11:17:40 agc Exp $ */
5 * Copyright (c) 1983, 1993
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * Edward Wang at The University of California, Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
40 static void rub(int, struct ww *);
43 wwgets(char *buf, int n, struct ww *w)
47 int uc = ISSET(w->ww_wflags, WWW_UNCTRL);
49 CLR(w->ww_wflags, WWW_UNCTRL);
52 while ((c = wwgetc()) < 0)
55 if (c == wwoldtty.ww_sgttyb.sg_erase)
57 if (c == wwoldtty.ww_termios.c_cc[VERASE])
64 if (c == wwoldtty.ww_sgttyb.sg_kill)
66 if (c == wwoldtty.ww_termios.c_cc[VKILL])
73 if (c == wwoldtty.ww_ltchars.t_werasc)
75 if (c == wwoldtty.ww_termios.c_cc[VWERASE])
78 while (--p >= buf && (*p == ' ' || *p == '\t'))
80 while (p >= buf && *p != ' ' && *p != '\t')
83 } else if (c == '\r' || c == '\n') {
89 wwputs(unctrl(*p++ = c), w);
93 SET(w->ww_wflags, uc);
97 rub(int c, struct ww *w)
101 for (i = strlen(unctrl(c)); --i >= 0;)
102 (void) wwwrite(w, "\b \b", 3);