Annotation of src/usr.bin/window/wwgets.c, Revision 1.2
1.2 ! niklas 1: /* $NetBSD: wwgets.c,v 1.6 1996/02/08 20:45:08 mycroft Exp $ */
1.1 deraadt 2:
3: /*
4: * Copyright (c) 1983, 1993
5: * The Regents of the University of California. All rights reserved.
6: *
7: * This code is derived from software contributed to Berkeley by
8: * Edward Wang at The University of California, Berkeley.
9: *
10: * Redistribution and use in source and binary forms, with or without
11: * modification, are permitted provided that the following conditions
12: * are met:
13: * 1. Redistributions of source code must retain the above copyright
14: * notice, this list of conditions and the following disclaimer.
15: * 2. Redistributions in binary form must reproduce the above copyright
16: * notice, this list of conditions and the following disclaimer in the
17: * documentation and/or other materials provided with the distribution.
18: * 3. All advertising materials mentioning features or use of this software
19: * must display the following acknowledgement:
20: * This product includes software developed by the University of
21: * California, Berkeley and its contributors.
22: * 4. Neither the name of the University nor the names of its contributors
23: * may be used to endorse or promote products derived from this software
24: * without specific prior written permission.
25: *
26: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36: * SUCH DAMAGE.
37: */
38:
39: #ifndef lint
40: #if 0
41: static char sccsid[] = "@(#)wwgets.c 8.1 (Berkeley) 6/6/93";
42: #else
1.2 ! niklas 43: static char rcsid[] = "$NetBSD: wwgets.c,v 1.6 1996/02/08 20:45:08 mycroft Exp $";
1.1 deraadt 44: #endif
45: #endif /* not lint */
46:
47: #include "ww.h"
48: #include "char.h"
49: #include <string.h>
50:
51: wwgets(buf, n, w)
52: char *buf;
53: int n;
54: register struct ww *w;
55: {
56: register char *p = buf;
1.2 ! niklas 57: register int c;
! 58: int uc = ISSET(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 59: static void rub();
60:
1.2 ! niklas 61: CLR(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 62: for (;;) {
63: wwcurtowin(w);
64: while ((c = wwgetc()) < 0)
65: wwiomux();
66: #ifdef OLD_TTY
67: if (c == wwoldtty.ww_sgttyb.sg_erase)
68: #else
69: if (c == wwoldtty.ww_termios.c_cc[VERASE])
70: #endif
71: {
72: if (p > buf)
73: rub(*--p, w);
74: } else
75: #ifdef OLD_TTY
76: if (c == wwoldtty.ww_sgttyb.sg_kill)
77: #else
78: if (c == wwoldtty.ww_termios.c_cc[VKILL])
79: #endif
80: {
81: while (p > buf)
82: rub(*--p, w);
83: } else
84: #ifdef OLD_TTY
85: if (c == wwoldtty.ww_ltchars.t_werasc)
86: #else
87: if (c == wwoldtty.ww_termios.c_cc[VWERASE])
88: #endif
89: {
90: while (--p >= buf && (*p == ' ' || *p == '\t'))
91: rub(*p, w);
92: while (p >= buf && *p != ' ' && *p != '\t')
93: rub(*p--, w);
94: p++;
95: } else if (c == '\r' || c == '\n') {
96: break;
97: } else {
98: if (p >= buf + n - 1)
99: wwputc(ctrl('g'), w);
100: else
101: wwputs(unctrl(*p++ = c), w);
102: }
103: }
104: *p = 0;
1.2 ! niklas 105: SET(w->ww_wflags, uc);
1.1 deraadt 106: }
107:
108: static void
109: rub(c, w)
110: struct ww *w;
111: {
112: register i;
113:
114: for (i = strlen(unctrl(c)); --i >= 0;)
115: (void) wwwrite(w, "\b \b", 3);
116: }