Base version of ncurses-5.7 library
diff --git a/ncurses/widechar/lib_in_wchnstr.c b/ncurses/widechar/lib_in_wchnstr.c
new file mode 100644
index 0000000..e9f0646
--- /dev/null
+++ b/ncurses/widechar/lib_in_wchnstr.c
@@ -0,0 +1,76 @@
+/****************************************************************************
+ * Copyright (c) 2002-2004-2007 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: Thomas Dickey *
+ ****************************************************************************/
+
+/*
+** lib_in_wchnstr.c
+**
+** The routine win_wchnstr().
+**
+*/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: lib_in_wchnstr.c,v 1.7 2007/02/11 01:00:00 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)"), win, 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);
+}