ncursesw-morphos/ncurses/widechar/lib_in_wchnstr.c
Thomas E. Dickey 3a0d9d27e0 ncurses 5.7 - patch 20091024
+ quiet some pedantic gcc warnings.
+ modify _nc_wgetch() to check for a -1 in the fifo, e.g., after a
  SIGWINCH, and discard that value, to avoid confusing application
  (patch by Eygene Ryabinkin, FreeBSD bin/136223).
2009-10-25 01:06:00 +00:00

77 lines
3.1 KiB
C

/****************************************************************************
* Copyright (c) 2002-2007,2009 Free Software Foundation, Inc. *
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/****************************************************************************
* Author: Thomas Dickey *
****************************************************************************/
/*
** lib_in_wchnstr.c
**
** The routine win_wchnstr().
**
*/
#include <curses.priv.h>
MODULE_ID("$Id: lib_in_wchnstr.c,v 1.8 2009/10/24 22:37:48 tom Exp $")
NCURSES_EXPORT(int)
win_wchnstr(WINDOW *win, cchar_t *wchstr, int n)
{
int code = OK;
T((T_CALLED("win_wchnstr(%p,%p,%d)"), (void *) win, (void *) wchstr, n));
if (win != 0
&& wchstr != 0) {
NCURSES_CH_T *src;
int row, col;
int j, k, limit;
getyx(win, row, col);
limit = getmaxx(win) - col;
src = &(win->_line[row].text[col]);
if (n < 0) {
n = limit;
} else if (n > limit) {
n = limit;
}
for (j = k = 0; j < n; ++j) {
if (j == 0 || !WidecExt(src[j]) || isWidecBase(src[j])) {
wchstr[k++] = src[j];
}
}
memset(&(wchstr[k]), 0, sizeof(*wchstr));
T(("result = %s", _nc_viscbuf(wchstr, n)));
} else {
code = ERR;
}
returnCode(code);
}