Re: [vile] [Too many levels of files]

[Wayne Cuddy]

On Sat, May 24, 2014 at 01:01:17PM -0400, Thomas Dickey wrote:
> On Sat, May 24, 2014 at 12:41:05PM -0400, Wayne Cuddy wrote:
> > On Fri, May 23, 2014 at 05:33:29PM -0400, Thomas Dickey wrote:
> > > On Fri, May 23, 2014 at 04:22:34PM -0400, Wayne Cuddy wrote:
> > > > On Fri, May 23, 2014 at 02:44:02PM -0400, Thomas Dickey wrote:
> > > > > On Fri, May 23, 2014 at 01:37:01PM -0400, Wayne Cuddy wrote:
> > > > > > When running vile on OpenBSD is seems there is something that is
> > > > > > triggering the message [Too many levels of files] to appear in the
> > > > > > status line at the bottom.
> > > > > 
> > > > > That will happen if there's more than 9 levels of macros.
> > > > > (It's hardcoded - hasn't been a need to make it configurable).
> > > > >  
> > > > > > I typically run vile on Linux (primarily), HP-UX and recently
> > > > > > OpenBSD. I only ever see this message on OpenBSD and it seems to be
> 
> Which release of OpenBSD is this, by the way?
> (I have a VM with 5.3, but haven't noticed a problem there - but mostly
> am just running test-compiles)

I'm currently running 5.5 but I saw it on 5.3 as well.

Here is the portion of the trace file just before the hook starts
executing repeatedly.

...arg[0] = ' -t'
...arg[1] = '4'
-> ' -t4'
...arg[1] = ' -t4'
-> ' -t4'
...arg[1] = ' -t4'
-> '/usr/local/lib/vile/vile-conf-filt -t4'
[HighlightFilter]:26 (2/0):~endif
[HighlightFilter]:27 (1/0):~endif
...pop_variable(%filteropts) ERROR
...pop_variable(%filterpath) ERROR
...pop_variable(%filtername) ERROR
...pop_variable($curline) 1
...pop_variable($curcol) 1
[HighlightFilterMsg]:2 (0/0):write-message '[Attaching attributes...]'
running autocolor-hook HOOK with HighlightFilterMsg, current .fvwmrc
[HighlightFilterMsg]:1 (0/0):HighlightFilter
[HighlightFilterMsg]:1 (0/0):HighlightFilter
[HighlightFilterMsg]:1 (0/0):HighlightFilter
[HighlightFilterMsg]:1 (0/0):HighlightFilter
[HighlightFilterMsg]:1 (0/0):HighlightFilter

> 
> > > > > > triggered by some key sequence but I can't for the life of me figure
> > > > > > out what is causing it.
> > > > > 
> > > > > offhand, the only thing that comes to mind is some macro which is
> > > > > recurring, e.g., by calling itself.
> > > > 
> > > > I use the same configuration on all my systems and I don't "think" I 
> > > > have
> > > > any macros that do that. Once the [Too many ...] message appears does
> > > > that mean that the execution would terminate? If I hit escape and it
> > > 
> > > It means that the expression-evaluation will return an error - and
> > > since that's usually handled correctly, we'd expect the error to propagate
> > > up and terminate the macro.  (If "~force" was used, that might be 
> > > ignored).
> > > 
> > > > aborts I'm wondering why the message appears again within a few seconds.
> > > 
> > > I don't have a good guess...
> > > 
> > > > I'll try running with '-D' to see if I notice anything interesting if it
> > > > happens again.
> > 
> > It turns out that running with -D helped determine the problem. The
> > autocolor-hook is executing repeatedly. I have autocolor=5000. But I'm
> > not sending the editor any input when this is happening. It happens on
> > the console, in xterm windows as well as in xvile. I set nohighlight and
> > the problem went away. I set X focus to another window and it still
> > happened. I have a copy of the trace log (-D) if that will help? I was
> > editing my .fvwmrc file at the time... here is what the tail end of
> > trace log shows.
> 
> hmm - 5000 should be a "long time".  But supposing that the configure checks
> to support a timed-wait aren't working properly (or OpenBSD isn't working...),
> and that the timer returns right away, there could be some hole which allows
> the hook to recur into itself.
> 
> -- 
> Thomas E. Dickey <address@hidden>
> http://invisible-island.net
> ftp://invisible-island.net



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