Base version of ncurses-5.7 library
diff --git a/ncurses/widechar/lib_ins_wch.c b/ncurses/widechar/lib_ins_wch.c
new file mode 100644
index 0000000..c3d0420
--- /dev/null
+++ b/ncurses/widechar/lib_ins_wch.c
@@ -0,0 +1,144 @@
+/****************************************************************************
+ * Copyright (c) 2002-2003,2005 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 2002                                              *
+ ****************************************************************************/
+
+/*
+**	lib_ins_wch.c
+**
+**	The routine wins_wch().
+**
+*/
+
+#include <curses.priv.h>
+
+MODULE_ID("$Id: lib_ins_wch.c,v 1.8 2005/12/03 20:24:19 tom Exp $")
+
+/*
+ * Insert the given character, updating the current location to simplify
+ * inserting a string.
+ */
+static int
+_nc_insert_wch(WINDOW *win, const cchar_t *wch)
+{
+    int cells = wcwidth(CharOf(CHDEREF(wch)));
+    int cell;
+
+    if (cells <= 0)
+	cells = 1;
+
+    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 - cells;
+
+	CHANGED_TO_EOL(line, win->_curx, win->_maxx);
+	while (temp1 > end)
+	    *temp1-- = *temp2--;
+
+	*temp1 = _nc_render(win, *wch);
+	for (cell = 1; cell < cells; ++cell) {
+	    SetWidecExt(temp1[cell], cell);
+	}
+
+	win->_curx++;
+    }
+    return OK;
+}
+
+NCURSES_EXPORT(int)
+wins_wch(WINDOW *win, const cchar_t *wch)
+{
+    NCURSES_SIZE_T oy;
+    NCURSES_SIZE_T ox;
+    int code = ERR;
+
+    T((T_CALLED("wins_wch(%p, %s)"), win, _tracecchar_t(wch)));
+
+    if (win != 0) {
+	oy = win->_cury;
+	ox = win->_curx;
+
+	code = _nc_insert_wch(win, wch);
+
+	win->_curx = ox;
+	win->_cury = oy;
+	_nc_synchook(win);
+    }
+    returnCode(code);
+}
+
+NCURSES_EXPORT(int)
+wins_nwstr(WINDOW *win, const wchar_t *wstr, int n)
+{
+    int code = ERR;
+    NCURSES_SIZE_T oy;
+    NCURSES_SIZE_T ox;
+    const wchar_t *cp;
+
+    T((T_CALLED("wins_nwstr(%p,%s,%d)"), win, _nc_viswbufn(wstr, n), n));
+
+    if (win != 0
+	&& wstr != 0) {
+	if (n < 1)
+	    n = wcslen(wstr);
+	code = OK;
+	if (n > 0) {
+	    oy = win->_cury;
+	    ox = win->_curx;
+	    for (cp = wstr; *cp && ((cp - wstr) < n); cp++) {
+		int len = wcwidth(*cp);
+
+		if (len != 1 || !is8bits(*cp)) {
+		    cchar_t tmp_cchar;
+		    wchar_t tmp_wchar = *cp;
+		    memset(&tmp_cchar, 0, sizeof(tmp_cchar));
+		    (void) setcchar(&tmp_cchar,
+				    &tmp_wchar,
+				    WA_NORMAL,
+				    0,
+				    (void *) 0);
+		    code = _nc_insert_wch(win, &tmp_cchar);
+		} else {
+		    /* tabs, other ASCII stuff */
+		    code = _nc_insert_ch(win, (chtype) (*cp));
+		}
+		if (code != OK)
+		    break;
+	    }
+
+	    win->_curx = ox;
+	    win->_cury = oy;
+	    _nc_synchook(win);
+	}
+    }
+    returnCode(code);
+}