Re: Three strikes them out

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

martin rudalics wrote:
>  > What happens when you set `jit-lock-context-time' to a very large value?
>  >
>  > I can dig up one of those cases that loops and try it, but why do you
>  > propose that? (It might of course help a bit to find out where the
>  > problem happens and I have one case where this could indeed be
>  > interesting, but I am not sure if that is what you mean.)
> 
> If font-lock loops within contextual refontification there's either a
> bug in font-lock (which I consider highly impropable) or there's a bug
> in your code (maybe some function called by a hook or another timer)
> that changes the buffer and re-triggers contextual refontification.
> Whatever applies should be resolved.

Thanks. The situation is a bit different in my case, but it could 
perhaps be that contextual refontificaion is re-triggered. Could that 
happen when the code runs under font-lock and only text properties and 
overlays are changed?

>  > The general problem that looping in a timer may hang Emacs is what I
>  > really wanted to address here.
> 
> You can't: As soon as you manage to exit looping, a repeating idle timer
> will fire again.

Yes, that was why I suggested that we implement something that allows us 
to stop this (with for example C-g C-g C-g).