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Message from discussion Unicode support for Windows console
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Bram Moolenaar  
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 More options Nov 6 2007, 4:19 pm
From: Bram Moolenaar <B...@moolenaar.net>
Date: Tue, 06 Nov 2007 22:19:39 +0100
Local: Tues, Nov 6 2007 4:19 pm
Subject: Re: Unicode support for Windows console
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Andrew Sunbar wrote:
> Long time Vim user, first time hacker.

> I've recently noticed that although the Windows console has supported
> Unicode since Windows 2000,
> Vim for the Windows console doesn't yet support Unicode.

> There are two ways to write Unicode to the Windows console: Native
> Windows UCS-2/UTF-16
> accessed via Windows's ...W APIs and UTF-8 accessed via Windows's ...A
> APIs after setting the
> console's code page to UTF-8. I'm assuming the latter method will be
> easier for Vim.

> To see how Vim currently behaves in UTF-8 here are the steps:
> >From the Start menu choose "Run"
> Enter "cmd /u" (this makes the console filehandles pipes etc work with
> Unicode)
> Type into the console "chcp 65001" (this sets the code page to UTF-8)
> Change the terminal font to a Unicode font: Right click title bar,
> Properties, Font, Lucida Console.
> Now run Vim.

> Even at startup the display is corrupt. My first guess is a
> discrepancy between number of bytes and number of characters in
> displayed strings. Note that :set termenc=utf8 and :set enc=utf8 have
> no effect.
> Note also that attributes (colours) and input seem to work fine.

> I'm just feeling my way around the Vim code so far but os_win32.c /
> write_chars() has caught my eye.
> Perhaps somebody on this list can direct me where else to look in the
> code.

As far as I know nearly nobody uses cp65001.  Vim doesn't support it.
I don't know if it would work when Vim would support is.  The MS-Windows
console is known to be flaky.

Input through Unicode (UTF-16) should work, but I don't know of people
actually using it.  Most non-Asian character sets are 8-bit.  Asians use
DBCS encodings.  So when would UTF-16 be used?

--
From "know your smileys":
 :q     vi user saying, "How do I get out of this damn emacs editor?"

 /// Bram Moolenaar -- B...@Moolenaar.net -- http://www.Moolenaar.net   \\\
///        sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\        download, build and distribute -- http://www.A-A-P.org        ///
 \\\            help me help AIDS victims -- http://ICCF-Holland.org    ///


 
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