mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
6c8ac72df7
distributed in keith bostic's nvi (got his permission first). Most changes are cosmetic, but a few errors (mostly in tty..c) were cleared up. Reviewed by: Sean Eric Fagan
158 lines
4.3 KiB
C
158 lines
4.3 KiB
C
/*
|
|
* Copyright (c) 1987, 1993, 1994
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* 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[] = "@(#)addbytes.c 8.4 (Berkeley) 5/4/94";
|
|
#endif /* not lint */
|
|
|
|
#include "curses.h"
|
|
|
|
#define SYNCH_IN {y = win->cury; x = win->curx;}
|
|
#define SYNCH_OUT {win->cury = y; win->curx = x;}
|
|
|
|
/*
|
|
* waddbytes --
|
|
* Add the character to the current position in the given window.
|
|
*/
|
|
int
|
|
__waddbytes(win, bytes, count, so)
|
|
register WINDOW *win;
|
|
register const char *bytes;
|
|
register int count;
|
|
int so;
|
|
{
|
|
static char blanks[] = " ";
|
|
register int c, newx, x, y;
|
|
char stand;
|
|
__LINE *lp;
|
|
|
|
SYNCH_IN;
|
|
|
|
#ifdef DEBUG
|
|
__CTRACE("ADDBYTES('%c') at (%d, %d)\n", c, y, x);
|
|
#endif
|
|
while (count--) {
|
|
c = *bytes++;
|
|
switch (c) {
|
|
case '\t':
|
|
SYNCH_OUT;
|
|
if (waddbytes(win, blanks, 8 - (x % 8)) == ERR)
|
|
return (ERR);
|
|
SYNCH_IN;
|
|
break;
|
|
|
|
default:
|
|
#ifdef DEBUG
|
|
__CTRACE("ADDBYTES(%0.2o, %d, %d)\n", win, y, x);
|
|
#endif
|
|
|
|
lp = win->lines[y];
|
|
if (lp->flags & __ISPASTEOL) {
|
|
lp->flags &= ~__ISPASTEOL;
|
|
newline: if (y == win->maxy - 1) {
|
|
if (win->flags & __SCROLLOK) {
|
|
SYNCH_OUT;
|
|
scroll(win);
|
|
SYNCH_IN;
|
|
lp = win->lines[y];
|
|
x = 0;
|
|
} else
|
|
return (ERR);
|
|
} else {
|
|
y++;
|
|
lp = win->lines[y];
|
|
x = 0;
|
|
}
|
|
if (c == '\n')
|
|
break;
|
|
}
|
|
|
|
stand = '\0';
|
|
if (win->flags & __WSTANDOUT || so)
|
|
stand |= __STANDOUT;
|
|
#ifdef DEBUG
|
|
__CTRACE("ADDBYTES: 1: y = %d, x = %d, firstch = %d, lastch = %d\n",
|
|
y, x, *win->lines[y]->firstchp, *win->lines[y]->lastchp);
|
|
#endif
|
|
if (lp->line[x].ch != c ||
|
|
!(lp->line[x].attr & stand)) {
|
|
newx = x + win->ch_off;
|
|
if (!(lp->flags & __ISDIRTY)) {
|
|
lp->flags |= __ISDIRTY;
|
|
*lp->firstchp = *lp->lastchp = newx;
|
|
}
|
|
else if (newx < *lp->firstchp)
|
|
*lp->firstchp = newx;
|
|
else if (newx > *lp->lastchp)
|
|
*lp->lastchp = newx;
|
|
#ifdef DEBUG
|
|
__CTRACE("ADDBYTES: change gives f/l: %d/%d [%d/%d]\n",
|
|
*lp->firstchp, *lp->lastchp,
|
|
*lp->firstchp - win->ch_off,
|
|
*lp->lastchp - win->ch_off);
|
|
#endif
|
|
}
|
|
lp->line[x].ch = c;
|
|
if (stand)
|
|
lp->line[x].attr |= __STANDOUT;
|
|
else
|
|
lp->line[x].attr &= ~__STANDOUT;
|
|
if (x == win->maxx - 1)
|
|
lp->flags |= __ISPASTEOL;
|
|
else
|
|
x++;
|
|
#ifdef DEBUG
|
|
__CTRACE("ADDBYTES: 2: y = %d, x = %d, firstch = %d, lastch = %d\n",
|
|
y, x, *win->lines[y]->firstchp, *win->lines[y]->lastchp);
|
|
#endif
|
|
break;
|
|
case '\n':
|
|
SYNCH_OUT;
|
|
wclrtoeol(win);
|
|
SYNCH_IN;
|
|
if (!NONL)
|
|
x = 0;
|
|
goto newline;
|
|
case '\r':
|
|
x = 0;
|
|
break;
|
|
case '\b':
|
|
if (--x < 0)
|
|
x = 0;
|
|
break;
|
|
}
|
|
}
|
|
SYNCH_OUT;
|
|
return (OK);
|
|
}
|