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Re: entries and guile-gui
From: |
Neil Jerram |
Subject: |
Re: entries and guile-gui |
Date: |
Sat, 24 Feb 2007 08:53:14 +0000 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
Neil Jerram <address@hidden> writes:
> Neil Jerram <address@hidden> writes:
>
>> I guess that means that in Guile 1.6, (if #f) => #f, but in 1.8 (if
>> #f) => something not #f.
>
> In fact (if #f) is an error in 1.8:
I'm sorry, that explanation was complete nonsense.
`(if #f)' is of course an error, in both 1.6 and 1.8. `(if #f #f)' is
what I meant, and this gives unspecified (which conforms to R5RS) in
both 1.6 and 1.8.
So I think the real reason for the regression in guile-gui's behaviour
must be something to do with how guile-gtk and/or Gtk+ depend on the
return value that they get from a signal handler proc.
It looks like #f now (Gtk+ 2.0) means "carry on calling other handlers
for this signal" and non-#f (which includes the unspecified value)
means "don't call any other handlers", and I guess this was not the
case in the past (Gtk+ 1.2).
Regards,
Neil
- entries and guile-gui [was guile-gtk-2.0 strangeness..?], (continued)
- entries and guile-gui [was guile-gtk-2.0 strangeness..?], Paul Emsley, 2007/02/09
- Re: entries and guile-gui, Kevin Ryde, 2007/02/09
- Re: entries and guile-gui, Neil Jerram, 2007/02/18
- Message not available
- Re: entries and guile-gui, Neil Jerram, 2007/02/21
- Re: entries and guile-gui, Kevin Ryde, 2007/02/21
- Re: entries and guile-gui, Kevin Ryde, 2007/02/21
- Re: entries and guile-gui, Kevin Ryde, 2007/02/21
- Re: entries and guile-gui, Neil Jerram, 2007/02/22
- Re: entries and guile-gui, Neil Jerram, 2007/02/22
- Re: entries and guile-gui, Neil Jerram, 2007/02/22
- Re: entries and guile-gui,
Neil Jerram <=
- Re: entries and guile-gui, Kevin Ryde, 2007/02/25
- Re: entries and guile-gui, Neil Jerram, 2007/02/26
- Re: entries and guile-gui, Kevin Ryde, 2007/02/26
- Re: entries and guile-gui, Neil Jerram, 2007/02/28
- Re: entries and guile-gui, Neil Jerram, 2007/02/22