Bug#500236: wrong display of UTF-8 characters

[Juan Cespedes]

Package: libncursesw5,libncursesw5-dev
Version: 5.6+20080830-1
Severity: normal

When using multi-bytes UTF-8 characters in libncurses, it wrongly
calculates its width, and messes up all the display.

Attached is a simple program which demostrates it; the output should be:

+--------------+
|Juan Cespedes |
|Juan Céspedes |
+--------------+

but instead it shows:

+--------------+
|Juan Cespedes |
|Juan Céspedes|
+--------------+

I have tried both libncurses and libncursesw; I have also tried
different versions (from 5.5-5 to 5.6+20080830-1), and also different
terminal emulators (gnome-terminal, xterm, screen).  The results are
always the same.

Thanks,

-- 
Juan Cespedes

#include <ncursesw/ncurses.h>

int main(void)
{
	initscr();
	curs_set(0);

	mvaddch(0, 0, '+');
	mvaddch(0, 15, '+');
	mvaddch(3, 0, '+');
	mvaddch(3, 15, '+');
	mvhline(0, 1, '-', 14);
	mvhline(3, 1, '-', 14);
	mvvline(1, 0, '|', 2);
	mvvline(1, 15, '|', 2);

	mvaddstr(1, 1, "Juan Cespedes");
	mvaddstr(2, 1, "Juan Céspedes");
	refresh();
	getch();
	endwin();
	return 0;
}