Re: [Indic-computing-devel] Re: NCST Indix Examined

[Keyur S. <key...@ya...>]

Hi,

At present I am in Delhi for IndiaSoft 2002 exhibition. I
would like to put some comment on this after coming back to
Mumbai on 25th February.

Regards,
Keyur

--- Joseph Koshy <jk...@Fr...> wrote:
> 
> 
> ks> While starting my work on IndiX, I also decided to
> give support
> ks> using an X extension. But unfortunately, I had to
> work under
> ks> strictly imposed constraints :-( esp. that
> applications should not
> ks> be modified for Indian language support. So I did the
> thing in
> ks> whatever way the people wanted me to do and also
> tried to do it in
> ks> best possible way!
> 
> Most unmodified X applications may not work correctly
> with an X server
> that does "behind-the-scenes" glyph reordering and
> substitution.
> 
> Consider the following scenario:
>   - the user presses Button-1 down on some `x[1],y[1]'
> location on screen
>     and sweeps the pointer over the screen
>   - Button-1 is released at location `x[2],y[2]'
> 
> These screen coordinates get reported back to the
> application in the
> form of "events".  Given these two pixel coordinates, the
> X
> application has to figure out the region of the
> underlying text that
> was "selected".  This involves going backwards from 'x,y'
> coordinates
> to the character code points in its text buffer.
> 
> If the X server is doing arbitrary glyph reordering and
> glyph
> substitution unknown to the X client, then this
> translation will go
> wrong in the client.
> 
> I don't think the requirement of X applications running
> unchanged with
> Indic scripts is a feasible one.
> 
> Regards,
> Koshy
> <jk...@fr...>
> 
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