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60de5df9 | 1 | /* |
ad787160 C |
2 | * Copyright (c) 1983, 1993 |
3 | * The Regents of the University of California. All rights reserved. | |
46e9ea25 | 4 | * |
3dd3a9e5 KB |
5 | * This code is derived from software contributed to Berkeley by |
6 | * Edward Wang at The University of California, Berkeley. | |
7 | * | |
c0567266 KB |
8 | * Redistribution and use in source and binary forms, with or without |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in the | |
15 | * documentation and/or other materials provided with the distribution. | |
16 | * 3. All advertising materials mentioning features or use of this software | |
17 | * must display the following acknowledgement: | |
18 | * This product includes software developed by the University of | |
19 | * California, Berkeley and its contributors. | |
20 | * 4. Neither the name of the University nor the names of its contributors | |
21 | * may be used to endorse or promote products derived from this software | |
22 | * without specific prior written permission. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
25 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
28 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
29 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
30 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
31 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
32 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
33 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
34 | * SUCH DAMAGE. | |
60de5df9 EW |
35 | */ |
36 | ||
46e9ea25 | 37 | #ifndef lint |
ad787160 | 38 | static char sccsid[] = "@(#)wwgets.c 8.1 (Berkeley) 6/6/93"; |
46e9ea25 KB |
39 | #endif /* not lint */ |
40 | ||
8fa6d94c | 41 | #include "ww.h" |
0e64e422 | 42 | #include "char.h" |
20c927a9 | 43 | |
8fa6d94c | 44 | wwgets(buf, n, w) |
059a7be6 EW |
45 | char *buf; |
46 | int n; | |
47 | register struct ww *w; | |
48 | { | |
49 | register char *p = buf; | |
50 | register char c; | |
7ecf4dca | 51 | char uc = w->ww_unctrl; |
419d8eab | 52 | static void rub(); |
059a7be6 | 53 | |
7ecf4dca | 54 | w->ww_unctrl = 0; |
059a7be6 | 55 | for (;;) { |
85af59e4 | 56 | wwcurtowin(w); |
8fa6d94c EW |
57 | while ((c = wwgetc()) < 0) |
58 | wwiomux(); | |
9de86788 | 59 | #ifdef OLD_TTY |
bbbb7b14 EW |
60 | if (c == wwoldtty.ww_sgttyb.sg_erase) |
61 | #else | |
62 | if (c == wwoldtty.ww_termios.c_cc[VERASE]) | |
63 | #endif | |
64 | { | |
5b912384 EW |
65 | if (p > buf) |
66 | rub(*--p, w); | |
bbbb7b14 | 67 | } else |
9de86788 | 68 | #ifdef OLD_TTY |
bbbb7b14 EW |
69 | if (c == wwoldtty.ww_sgttyb.sg_kill) |
70 | #else | |
71 | if (c == wwoldtty.ww_termios.c_cc[VKILL]) | |
72 | #endif | |
73 | { | |
5b912384 EW |
74 | while (p > buf) |
75 | rub(*--p, w); | |
bbbb7b14 | 76 | } else |
9de86788 | 77 | #ifdef OLD_TTY |
bbbb7b14 EW |
78 | if (c == wwoldtty.ww_ltchars.t_werasc) |
79 | #else | |
80 | if (c == wwoldtty.ww_termios.c_cc[VWERASE]) | |
81 | #endif | |
82 | { | |
5b912384 EW |
83 | while (--p >= buf && (*p == ' ' || *p == '\t')) |
84 | rub(*p, w); | |
85 | while (p >= buf && *p != ' ' && *p != '\t') | |
86 | rub(*p--, w); | |
87 | p++; | |
88 | } else if (c == '\r' || c == '\n') { | |
059a7be6 | 89 | break; |
5b912384 | 90 | } else { |
059a7be6 | 91 | if (p >= buf + n - 1) |
95bc282c | 92 | wwputc(ctrl('g'), w); |
5b912384 | 93 | else |
b1189050 | 94 | wwputs(unctrl(*p++ = c), w); |
059a7be6 EW |
95 | } |
96 | } | |
5b912384 | 97 | *p = 0; |
7ecf4dca | 98 | w->ww_unctrl = uc; |
5b912384 EW |
99 | } |
100 | ||
419d8eab | 101 | static void |
5b912384 EW |
102 | rub(c, w) |
103 | struct ww *w; | |
104 | { | |
105 | register i; | |
106 | ||
107 | for (i = strlen(unctrl(c)); --i >= 0;) | |
1b032f84 | 108 | (void) wwwrite(w, "\b \b", 3); |
059a7be6 | 109 | } |