Prev: grabbing key presses
Next: Authentic Designer Handbags EVOGUER.COM 15% OFF DISCOUNT!!!!
From: Paul Griffioen on 17 Nov 2009 07:16
On Tue, 17 Nov 2009 12:50:33 +0100, Peter Herth wrote:

> Paul Griffioen schrieb:
>
>
>> I was referring to the following FIXME from Ltk's code:
>>
>> "The problem here is that wish sends us error-messages on the same
>> stream that we use for our own communication. It would be good if we
>> could get the error-messages (that are presumably written to stderr)
>> onto a separate
>> stream. The current workaround is based on the observation that wish
>> error messages always seem to end on a newline, but this may not always
>> be so. READ-ALL would be a bad idea anyways, as in that case we could
>> accidentally
>> snarf a real message from the stream as well, if it immediately
>> followed an error message."
>
> Hehe, the comment is still in the newest development version, but errors
> should come back as an S-expression. All evaluation of Tcl code sent
> from LTk now happens in a catch, which in the case of an error sends
> back the error properly wrapped.
>
>
>> It has been a while since I looked at Ltk but I see now it is still in
>> the code. Issues with reading from Tcl/Tk streams led me to write a
>> reader for Tcl.
>
> A Tcl reader sounds interesting, I need to have a look :)
>

Let me know what you think

>
>> Was I correct in my statement that Ltk is limited to libraries that it
>> has wrappers for? What I like about Ltk is that it is completely in
>> Lisp, but I want complete access to Tcl/Tk. I don't mind programming in
>> Tcl so it's not a big deal for me, but a Lisp interface is nice.
>>
> Yes, to have Lisp wrappers for Tcl code one has to write them :). If you
> are happy to write Tcl code, then your approach is of course more
> flexible. The idea behind LTk is to not require Tcl knowledge when using
> it. However, with the infrastructure in LTk it should not be a lot of
> work to wrap arbitrary Tcl libraries in a similar fashion.

I'm not really happy writing Tcl code, but I don't like writing wrappers
either :) It's a trade-off, but scripting GUIs with Tcl isn't too bad. I
have been thinking about generating Ltk wrappers. Do you think that would
be possible?

Paul
First  |  Prev  | 
Pages: 1 2 3
Prev: grabbing key presses
Next: Authentic Designer Handbags EVOGUER.COM 15% OFF DISCOUNT!!!!