Date: Sat, 23 Aug 2008 07:04:06 -0400 From: Thomas Dickey <dickey@radix.net> To: Ed Schouten <ed@80386.nl> Cc: FreeBSD Current <freebsd-current@freebsd.org>, Alexander Churanov <alexanderchuranov@gmail.com> Subject: Re: Unicode-based FreeBSD Message-ID: <20080823110406.GB10445@saltmine.radix.net> In-Reply-To: <20080823102656.GE99951@hoeg.nl> References: <3cb459ed0808230256g3f0f51epd9ab54047d3bd681@mail.gmail.com> <20080823102656.GE99951@hoeg.nl>
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On Sat, Aug 23, 2008 at 12:26:56PM +0200, Ed Schouten wrote: > Hello Alexander, > > * Alexander Churanov <alexanderchuranov@gmail.com> wrote: > > 1) Is unicode support in character-mode (I mean plain tty, not Xorg) FreeBSD > > human interface alreay implemented? > > Yes and no. > > Right now, you can just use UTF-8 inside ncurses and there is nothing > that actually stops you from writing pieces of console software that > supports UTF-8. ...but it does help if the terminal can display the result. > But there is one problem with TTY's: when you switch your terminal to > canonical mode (where it processes entire lines of text at a time), it > cannot properly perform backspace on exotic characters, because the > characters are both variadic in bytes and columns. Linux has this IUTF8 > flag for termios, which we don't support (yet). ...before IUTF8, there was some consensus for a few years that it was up to the application to do proper backspacing. (ncurses does this anyway, but apparently shell interpreters such as bash need extra assistance). -- Thomas E. Dickey http://invisible-island.net ftp://invisible-island.net
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