show-wspace.el fontlock problem

[Neal Becker]

Stephen J. Turnbull wrote:

> Neal Becker writes:
> 
>  > Sort of works, but I'm getting millions of messages:
>  > Fontifying region...(invalid-function 0)
>  > 
>  > Strangely, setting debug-on-error doesn't seem to trap the message.
> 
> If it were a debuggable error, I have to admire your stamina.  You
> only get one error per command, so you tried it millions of times! :-)
> 
> Now, debug-on-error hooks into the process *later* than condition-case
> does, so if the error is handled in code you'll never see it.  What
> you need here is debug-on-signal, which drops you into the debugger
> before condition-case gets its hands on it.
> 
> You could also just look for condition-cases in the code.

It appears that show-wspace.el itself isn't causing a problem.  I manually
loaded it and activated without error.  I think the hooks I added to my
init.el are causing the problem:

;(add-hook 'python-mode-hook 'show-ws-highlight-tabs)
;(add-hook 'font-lock-mode-hook 'show-ws-highlight-trailing-whitespace)