Base version of ncurses-5.7 library
diff --git a/ncurses/base/lib_insch.c b/ncurses/base/lib_insch.c
new file mode 100644
index 0000000..9166ea5
--- /dev/null
+++ b/ncurses/base/lib_insch.c
@@ -0,0 +1,155 @@
+/****************************************************************************
+ * 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 1.25 2008/02/03 00:14:37 tom 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);
+}