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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 1997 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1988 AT&T */
/* All Rights Reserved */
/*
* University Copyright- Copyright (c) 1982, 1986, 1988
* The Regents of the University of California
* All Rights Reserved
*
* University Acknowledgment- Portions of this document are derived from
* software developed by the University of California, Berkeley, and its
* contributors.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*LINTLIBRARY*/
#include <sys/types.h>
#include "curses_inc.h"
/*
* Insert to 'win' at most n chars of a string
* starting at (cury, curx). However, if n <= 0,
* insert the entire string.
* \n, \t, \r, \b are treated in the same way
* as other control chars.
*/
int
winsnstr(WINDOW *win, char *tsp, int n)
{
chtype *wcp;
int x, cury, endx, maxx, len;
bool savscrl, savsync, savimmed;
short savx, savy;
unsigned char *sp = (unsigned char *)tsp;
/* only insert at the start of a character */
win->_nbyte = -1;
win->_insmode = TRUE;
if (_scrmax > 1 && _mbvalid(win) == ERR)
return (ERR);
if (n < 0)
n = MAXINT;
/* compute total length of the insertion */
endx = win->_curx;
maxx = win->_maxx;
for (x = 0; sp[x] != '\0' && x < n && endx < maxx; ++x) {
len = (sp[x] < ' '|| sp[x] == _CTRL('?')) ? 2 : 1;
if (ISMBIT(sp[x])) {
int m, k, ty;
chtype c;
/* see if the entire character is defined */
c = RBYTE(sp[x]);
ty = TYPE(c);
m = x + cswidth[ty] - (ty == 0 ? 1 : 0);
for (k = x + 1; sp[k] != '\0' && k <= m; ++k) {
c = RBYTE(sp[k]);
if (TYPE(c) != 0)
break;
}
if (k <= m)
break;
/* recompute # of columns used */
len = _curs_scrwidth[ty];
/* skip an appropriate number of bytes */
x = m;
}
if ((endx += len) > maxx) {
endx -= len;
break;
}
}
/* length of chars to be shifted */
if ((len = endx - win->_curx) <= 0)
return (ERR);
/* number of chars insertible */
n = x;
/* shift data */
cury = win->_cury;
if (_mbinsshift(win, len) == ERR)
return (ERR);
/* insert new data */
wcp = win->_y[cury] + win->_curx;
/* act as if we are adding characters */
savx = win->_curx;
savy = win->_cury;
win->_insmode = FALSE;
savscrl = win->_scroll;
savimmed = win->_immed;
savsync = win->_sync;
win->_scroll = win->_sync;
for (; n > 0; --n, ++sp) {
/* multi-byte characters */
if (_mbtrue && ISMBIT(*sp)) {
(void) _mbaddch(win, A_NORMAL, RBYTE(*sp));
wcp = win->_y[cury] + win->_curx;
continue;
}
if (_scrmax > 1 && ISMBIT(*wcp))
(void) _mbclrch(win, cury, win->_curx);
/* single byte character */
win->_nbyte = -1;
if (*sp < ' ' || *sp == _CTRL('?')) {
*wcp++ = _CHAR('^') | win->_attrs;
*wcp = _CHAR(_UNCTRL(*sp)) | win->_attrs;
} else
*wcp = _CHAR(*sp) | win->_attrs;
win->_curx += (*sp < ' ' || *sp == _CTRL('?')) ? 2 : 1;
++wcp;
}
win->_curx = savx;
win->_cury = savy;
/* update the change structure */
if (win->_firstch[cury] > win->_curx)
win->_firstch[cury] = win->_curx;
win->_lastch[cury] = maxx - 1;
win->_flags |= _WINCHANGED;
win->_scroll = savscrl;
win->_sync = savsync;
win->_immed = savimmed;
if (win->_sync)
wsyncup(win);
return (win->_immed ? wrefresh(win) : OK);
}
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