X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fwidechar%2Flib_in_wchnstr.c;h=40a2bb62b419af01077f94366a8a91175597c8cc;hp=a757e7278daaef6e2dd68876cfbfbf5e53f43d31;hb=b724cdc89cf31757ab43262ecefe5242b0edc450;hpb=46722468f47c2b77b3987729b4bcf2321cccfd01

diff --git a/ncurses/widechar/lib_in_wchnstr.c b/ncurses/widechar/lib_in_wchnstr.c
index a757e727..40a2bb62 100644
--- a/ncurses/widechar/lib_in_wchnstr.c
+++ b/ncurses/widechar/lib_in_wchnstr.c
@@ -1,5 +1,6 @@
 /****************************************************************************
- * Copyright (c) 2002 Free Software Foundation, Inc.                        *
+ * Copyright 2020 Thomas E. Dickey                                          *
+ * Copyright 2002-2007,2009 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            *
@@ -27,7 +28,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Author: Thomas Dickey 2002                                               *
+ * Author: Thomas Dickey                                                    *
  ****************************************************************************/
 
 /*
@@ -39,22 +40,36 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_in_wchnstr.c,v 1.2 2002/08/03 20:38:45 tom Exp $")
+MODULE_ID("$Id: lib_in_wchnstr.c,v 1.9 2020/02/02 23:34:34 tom Exp $")
 
 NCURSES_EXPORT(int)
-win_wchnstr(WINDOW *win, cchar_t * wchstr, int n)
+win_wchnstr(WINDOW *win, cchar_t *wchstr, int n)
 {
     int code = OK;
 
-    TR(TRACE_CCALLS, (T_CALLED("win_wchnstr(%p,%p,%d)"), win, wchstr, n));
+    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 = getmaxx(win) + 1 - getcurx(win);
+	    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];
+	    }
 	}
-	while (n-- > 0)
-	    win_wch(win, wchstr++);
+	memset(&(wchstr[k]), 0, sizeof(*wchstr));
+	T(("result = %s", _nc_viscbuf(wchstr, n)));
     } else {
 	code = ERR;
     }