From: Carlos <angus@...>
Date: 2004-12-22T21:18:24+09:00
Subject: Re: curses - how to use unicode

[Simon Strandgaard <neoneye@gmail.com>, 2004-12-22 08.29 CET]
> > On the other hand, the parameters to "addn?wstr" are wchar_t *, which I
> > think are defined as 32 bit integers. So I guess you should either use
> > "pack('L*')", or change the function declaration.
> 
> 
> Using addwstr with pack("L*") doesn't seem to work for me either.
> How would a good representation of wchar_t string be like?

On the other other hand, I've found that if you use the functions without
"w", you can output UTF-8 strings directly :). It's more easy so...

And I've also found the secret to make ncursesw print non-ascii characters:
set the locale LC_ALL to "".

This works:

#
#  Using ncurses-5.4  with --enable-widec --with-shared
#
require 'dl/import'
module Curses
	extend DL::Importable
	dlload "libncursesw.so"
	typealias "WINDOW", "void*"
	extern "int addstr(const char *)"
	extern "int cbreak()"
	extern "int endwin()"
	extern "int getch()"
	extern "WINDOW initscr()"
	extern "int noecho()"
	extern "int refresh()"
	extern "int addstr(const char *)"
	extern "int addnstr(const char *, int)"
end

module LibC
	extend DL::Importable
	dlload "libc.so.6"
	extern "void setlocale(int, const char *)"
end
	

LibC.setlocale(6, "")  # LC_ALL == 6 
str = [0x250c, 0x2510, 10, 0x2514, 0x2518, 0].pack("U*")
Curses.initscr
Curses.cbreak
Curses.noecho
Curses.addstr(str)  # a box..
Curses.addstr("simple UTF-8 string ¿←↓↑→? ¡↑!\000")
Curses.getch
Curses.endwin
__END__

Good luck.