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/* $OpenBSD: lib_insch.c,v 1.3 2010/01/12 23:22:05 nicm Exp $ */
/****************************************************************************
* Copyright (c) 1998-2005,2008 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Sven Verdoolaege *
* and: Thomas E. Dickey *
****************************************************************************/
/*
** lib_insch.c
**
** The routine winsch().
**
*/
#include <curses.priv.h>
#include <ctype.h>
MODULE_ID("$Id: lib_insch.c,v 1.3 2010/01/12 23:22:05 nicm Exp $")
/*
* Insert the given character, updating the current location to simplify
* inserting a string.
*/
NCURSES_EXPORT(int)
_nc_insert_ch(WINDOW *win, chtype ch)
{
int code = OK;
NCURSES_CH_T wch;
int count;
NCURSES_CONST char *s;
switch (ch) {
case '\t':
for (count = (TABSIZE - (win->_curx % TABSIZE)); count > 0; count--) {
if ((code = _nc_insert_ch(win, ' ')) != OK)
break;
}
break;
case '\n':
case '\r':
case '\b':
SetChar2(wch, ch);
_nc_waddch_nosync(win, wch);
break;
default:
if (
#if USE_WIDEC_SUPPORT
WINDOW_EXT(win, addch_used) == 0 &&
#endif
is8bits(ChCharOf(ch)) &&
isprint(ChCharOf(ch))) {
if (win->_curx <= win->_maxx) {
struct ldat *line = &(win->_line[win->_cury]);
NCURSES_CH_T *end = &(line->text[win->_curx]);
NCURSES_CH_T *temp1 = &(line->text[win->_maxx]);
NCURSES_CH_T *temp2 = temp1 - 1;
SetChar2(wch, ch);
CHANGED_TO_EOL(line, win->_curx, win->_maxx);
while (temp1 > end)
*temp1-- = *temp2--;
*temp1 = _nc_render(win, wch);
win->_curx++;
}
} else if (is8bits(ChCharOf(ch)) && iscntrl(ChCharOf(ch))) {
s = unctrl(ChCharOf(ch));
while (*s != '\0') {
code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s));
if (code != OK)
break;
++s;
}
}
#if USE_WIDEC_SUPPORT
else {
/*
* Handle multibyte characters here
*/
SetChar2(wch, ch);
wch = _nc_render(win, wch);
count = _nc_build_wch(win, &wch);
if (count > 0) {
code = wins_wch(win, &wch);
} else if (count == -1) {
/* handle EILSEQ */
if (is8bits(ch)) {
s = unctrl(ChCharOf(ch));
while (*s != '\0') {
code = _nc_insert_ch(win, ChAttrOf(ch) | UChar(*s));
if (code != OK)
break;
++s;
}
} else {
code = ERR;
}
}
}
#endif
break;
}
return code;
}
NCURSES_EXPORT(int)
winsch(WINDOW *win, chtype c)
{
NCURSES_SIZE_T oy;
NCURSES_SIZE_T ox;
int code = ERR;
T((T_CALLED("winsch(%p, %s)"), win, _tracechtype(c)));
if (win != 0) {
oy = win->_cury;
ox = win->_curx;
code = _nc_insert_ch(win, c);
win->_curx = ox;
win->_cury = oy;
_nc_synchook(win);
}
returnCode(code);
}
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