114 lines
3.3 KiB
C
114 lines
3.3 KiB
C
/*
|
|
* Copyright (c) 1983, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Edward Wang at The University of California, Berkeley.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)wwgets.c 8.1 (Berkeley) 6/6/93";
|
|
static char rcsid[] = "@(#)$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#include "ww.h"
|
|
#include "char.h"
|
|
|
|
wwgets(buf, n, w)
|
|
char *buf;
|
|
int n;
|
|
register struct ww *w;
|
|
{
|
|
register char *p = buf;
|
|
register int c;
|
|
char uc = w->ww_unctrl;
|
|
static void rub();
|
|
|
|
w->ww_unctrl = 0;
|
|
for (;;) {
|
|
wwcurtowin(w);
|
|
while ((c = wwgetc()) < 0)
|
|
wwiomux();
|
|
#ifdef OLD_TTY
|
|
if (c == wwoldtty.ww_sgttyb.sg_erase)
|
|
#else
|
|
if (c == wwoldtty.ww_termios.c_cc[VERASE])
|
|
#endif
|
|
{
|
|
if (p > buf)
|
|
rub(*--p, w);
|
|
} else
|
|
#ifdef OLD_TTY
|
|
if (c == wwoldtty.ww_sgttyb.sg_kill)
|
|
#else
|
|
if (c == wwoldtty.ww_termios.c_cc[VKILL])
|
|
#endif
|
|
{
|
|
while (p > buf)
|
|
rub(*--p, w);
|
|
} else
|
|
#ifdef OLD_TTY
|
|
if (c == wwoldtty.ww_ltchars.t_werasc)
|
|
#else
|
|
if (c == wwoldtty.ww_termios.c_cc[VWERASE])
|
|
#endif
|
|
{
|
|
while (--p >= buf && (*p == ' ' || *p == '\t'))
|
|
rub(*p, w);
|
|
while (p >= buf && *p != ' ' && *p != '\t')
|
|
rub(*p--, w);
|
|
p++;
|
|
} else if (c == '\r' || c == '\n') {
|
|
break;
|
|
} else {
|
|
if (p >= buf + n - 1)
|
|
wwputc(ctrl('g'), w);
|
|
else
|
|
if (isctrl(c))
|
|
wwputs(unctrl(*p++ = c), w);
|
|
else
|
|
wwputc(*p++ = c, w);
|
|
}
|
|
}
|
|
*p = 0;
|
|
w->ww_unctrl = uc;
|
|
}
|
|
|
|
static void
|
|
rub(c, w)
|
|
struct ww *w;
|
|
{
|
|
register i;
|
|
|
|
for (i = isctrl(c) ? strlen(unctrl(c)) : 1; --i >= 0;)
|
|
(void) wwwrite(w, "\b \b", 3);
|
|
}
|