[M3devel] Fw: UTF-16: Greek alphabet with CM3

[Hendrik Boom]

On Thu, Nov 28, 2013 at 07:47:55AM +0100, Olaf Wagner wrote:
> I know that there have been controverse discussions about the right
> way to do unicode support.
> 
> Is there any way to help Elmar Stellnberger with a quick solution?

See http://en.wikipedia.org/wiki/ISO/IEC_8859-7
It seems there's an eight-bit code that's enough for the Greek language.
So in theory all you need to do is set the right environment variables
to specify a Greek character set.  In practice you might have to define
the geometry fot the Greek characters for Trestle.  Unless it manages
to use the underlying OS support for this.

-- hendrik


> 
> Olaf
> 
> Begin forwarded message:
> 
> Date: Wed, 27 Nov 2013 20:13:54 +0100
> From: Elmar Stellnberger <estellnb at elstel.org>
> To: m3-support at elego.de
> Subject: UTF-16: Greek alphabet with CM3
> 
> 
> Dear Supporters of CM3, Elegosoft
> 
>    Wanting to make use of CM3s new UTF-16 feature I have tried to use 
> greek letters by VAL(945+code,WIDECHAR) where 945 is alpha and 946 is 
> beta in the unicode table. However I soon had to notice that outputing 
> widechars is not supported by Trestle which still seems to be based on 
> X11R4. Some analysis of the problem has shown that TextVBT calls 
> VBT.PaintText which does however use the CHAR type internally rather 
> than Widechar calling PaintSub to output text instead of the X11R6 
> function XDrawString16. Is it true that you plan real unicode support 
> for CM3 or is there any way to hack the trestle toolkit into allowing 
> X11R6 functions? If yes or no how could I convert current X11R6 includes 
> for being used with Modula-3? Nonetheless I would really welcome true 
> native utf-16 support (as nowadays given by the iso10646-1 X core fonts 
> like also 'fixed') because that would be the only way to make use of 
> utf-16 for Windows ports. Otherwise I will have to consider whether I 
> can use Modula-3 at all for my current project which is about converting 
> the automaton simulator www.elstel.org/coan from Object Pascal into a 
> currently supported language and publishing it as open source.
> Thanks a lot for your effort!
> 
> Yours,
> Elmar Stellnberger
> -- 
> Olaf Wagner -- elego Software Solutions GmbH -- http://www.elegosoft.com
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