X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Fwidechar%2Flib_in_wchnstr.c;h=57cc2ca6e73f4e1305a9e688ed82db7ecaf790c5;hp=41ba18ccdf008a9c13df75c82c48884ea89e0205;hb=45766a7ed44677f18ccf230f9bd720862d7c69c8;hpb=55ccd2b959766810cf7db8d1c4462f338ce0afc8

diff --git a/ncurses/widechar/lib_in_wchnstr.c b/ncurses/widechar/lib_in_wchnstr.c
index 41ba18cc..57cc2ca6 100644
--- a/ncurses/widechar/lib_in_wchnstr.c
+++ b/ncurses/widechar/lib_in_wchnstr.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 2002,2004 Free Software Foundation, Inc.                   *
+ * Copyright (c) 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 +27,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- * Author: Thomas Dickey 2002,2004                                          *
+ * Author: Thomas Dickey                                                    *
  ****************************************************************************/
 
 /*
@@ -39,27 +39,35 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: lib_in_wchnstr.c,v 1.3 2004/05/16 00:12:30 tom Exp $")
+MODULE_ID("$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)
+win_wchnstr(WINDOW *win, cchar_t *wchstr, int n)
 {
     int code = OK;
 
-    TR(TRACE_CALLS, (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;
+	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 = 0; j < n; ++j) {
-	    wchstr[j] = win->_line[row].text[col + j];
+	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;