Annotation of src/usr.bin/window/wwgets.c, Revision 1.5
1.5 ! mpech 1: /* $OpenBSD: wwgets.c,v 1.4 1997/02/25 00:04:54 downsj Exp $ */
1.2 niklas 2: /* $NetBSD: wwgets.c,v 1.6 1996/02/08 20:45:08 mycroft Exp $ */
1.1 deraadt 3:
4: /*
5: * Copyright (c) 1983, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This code is derived from software contributed to Berkeley by
9: * Edward Wang at The University of California, Berkeley.
10: *
11: * Redistribution and use in source and binary forms, with or without
12: * modification, are permitted provided that the following conditions
13: * are met:
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. All advertising materials mentioning features or use of this software
20: * must display the following acknowledgement:
21: * This product includes software developed by the University of
22: * California, Berkeley and its contributors.
23: * 4. Neither the name of the University nor the names of its contributors
24: * may be used to endorse or promote products derived from this software
25: * without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
31: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
32: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37: * SUCH DAMAGE.
38: */
39:
40: #ifndef lint
41: #if 0
42: static char sccsid[] = "@(#)wwgets.c 8.1 (Berkeley) 6/6/93";
43: #else
1.5 ! mpech 44: static char rcsid[] = "$OpenBSD: wwgets.c,v 1.4 1997/02/25 00:04:54 downsj Exp $";
1.1 deraadt 45: #endif
46: #endif /* not lint */
47:
48: #include "ww.h"
49: #include "char.h"
50: #include <string.h>
51:
52: wwgets(buf, n, w)
53: char *buf;
54: int n;
1.5 ! mpech 55: struct ww *w;
1.1 deraadt 56: {
1.5 ! mpech 57: char *p = buf;
! 58: int c;
1.2 niklas 59: int uc = ISSET(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 60: static void rub();
61:
1.2 niklas 62: CLR(w->ww_wflags, WWW_UNCTRL);
1.1 deraadt 63: for (;;) {
64: wwcurtowin(w);
65: while ((c = wwgetc()) < 0)
66: wwiomux();
67: #ifdef OLD_TTY
68: if (c == wwoldtty.ww_sgttyb.sg_erase)
69: #else
70: if (c == wwoldtty.ww_termios.c_cc[VERASE])
71: #endif
72: {
73: if (p > buf)
74: rub(*--p, w);
75: } else
76: #ifdef OLD_TTY
77: if (c == wwoldtty.ww_sgttyb.sg_kill)
78: #else
79: if (c == wwoldtty.ww_termios.c_cc[VKILL])
80: #endif
81: {
82: while (p > buf)
83: rub(*--p, w);
84: } else
85: #ifdef OLD_TTY
86: if (c == wwoldtty.ww_ltchars.t_werasc)
87: #else
88: if (c == wwoldtty.ww_termios.c_cc[VWERASE])
89: #endif
90: {
91: while (--p >= buf && (*p == ' ' || *p == '\t'))
92: rub(*p, w);
93: while (p >= buf && *p != ' ' && *p != '\t')
94: rub(*p--, w);
95: p++;
96: } else if (c == '\r' || c == '\n') {
97: break;
98: } else {
99: if (p >= buf + n - 1)
100: wwputc(ctrl('g'), w);
101: else
102: wwputs(unctrl(*p++ = c), w);
103: }
104: }
105: *p = 0;
1.2 niklas 106: SET(w->ww_wflags, uc);
1.1 deraadt 107: }
108:
109: static void
110: rub(c, w)
111: struct ww *w;
112: {
1.5 ! mpech 113: int i;
1.1 deraadt 114:
115: for (i = strlen(unctrl(c)); --i >= 0;)
116: (void) wwwrite(w, "\b \b", 3);
117: }