freebsd-dev/usr.bin/window/wwlabel.c

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/*
* 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[] = "@(#)wwlabel.c 8.1 (Berkeley) 6/6/93";
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static char rcsid[] =
"$FreeBSD$";
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#endif /* not lint */
#include "ww.h"
#include "char.h"
/*
* Label window w on f,
* at 1 line above w and 'where' columns from it's left edge.
* Gross, but it works.
*/
wwlabel(w, f, where, l, mode)
struct ww *w;
struct ww *f;
char *l;
{
int row;
register j;
int jj;
register char *win;
register union ww_char *buf;
register union ww_char *ns;
register char *fmap;
register char *smap;
char touched;
unsigned char *p;
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static unsigned char cbuf[2];
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if (f->ww_fmap == 0)
return;
row = w->ww_w.t - 1;
if (row < f->ww_i.t || row >= f->ww_i.b)
return;
win = f->ww_win[row];
buf = f->ww_buf[row];
fmap = f->ww_fmap[row];
ns = wwns[row];
smap = wwsmap[row];
touched = wwtouched[row];
mode <<= WWC_MSHIFT;
jj = MIN(w->ww_i.r, f->ww_i.r);
j = w->ww_i.l + where;
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while (j < jj && *l) {
if (isctrl(*l))
p = unctrl(*l);
else {
cbuf[0] = *l;
p = cbuf;
}
for (l++; j < jj && *p; j++, p++) {
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/* can't label if not already framed */
if (win[j] & WWM_GLS)
continue;
if (smap[j] != f->ww_index)
buf[j].c_w = mode | *p;
else {
ns[j].c_w = (buf[j].c_w = mode | *p)
^ win[j] << WWC_MSHIFT;
touched |= WWU_TOUCHED;
}
fmap[j] |= WWF_LABEL;
}
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}
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wwtouched[row] = touched;
}