bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Stefan Monnier]

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Forwarding to bug-gnu-emacs@gnu.org.


        Stefan


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From: Kevin Layer <layer@known.net>
To: emacs-devel@gnu.org
Subject: 24.3: BUG REPORT: comint completion yields error
Date: Sun, 04 Aug 2013 10:20:16 -0700
Message-ID: <1005.1375636816@tines.known.net>

This took a while to figure out.  How to reproduce:

You need a directory with .rpm files in it.  Let's call that
/foo/bar/.  Then,

emacs -q
M-x shell RET
rpm --install /foo/bar/<TAB>

where <TAB> is you pressing the TAB key.  I get this:

Debugger entered--Lisp error: (void-variable regexp)
  signal(void-variable (regexp))
  completion--some...
  completion--nth-completion...
  completion-try-completion...
  completion--do-completion()
  minibuffer-complete()
  call-interactively(minibuffer-complete)
  ...
  apply...
  ...
  completion-in-region...
  completion-at-point()
  call-interactively(completion-at-point nil nil)

Very tricky to track down.  I think it's in the pcomplete code.
Specifically, it appears that it has something to do with this
pcomplete-dirs-or-entries in pcomplete.el, since I see that code on
the stack at the point of error.

If you omit the "rpm" part of the input, it does not happen.

Good luck with this one!

Kevin Layer

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Michael Heerdegen]

Hi,

> You need a directory with .rpm files in it.  Let's call that
> /foo/bar/.  Then,
>
> emacs -q
> M-x shell RET
> rpm --install /foo/bar/<TAB>
>
> where <TAB> is you pressing the TAB key.  I get this:
>
> Debugger entered--Lisp error: (void-variable regexp)
>   signal(void-variable (regexp))
>   completion--some...
>   completion--nth-completion...
>   completion-try-completion...
>   completion--do-completion()
>   minibuffer-complete()
>   call-interactively(minibuffer-complete)
>   ...
>   apply...
>   ...
>   completion-in-region...
>   completion-at-point()
>   call-interactively(completion-at-point nil nil)

FWIW; I can't reproduce this here.  This is
GNU Emacs 24.3.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.8.2)
of 2013-08-04 on dex, modified by Debian.

Does this also happen with emacs -Q (capital "Q")?


Thanks,

Michael.

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Kevin Layer]

Michael Heerdegen wrote:

>> Hi,
>> 
>> > You need a directory with .rpm files in it.  Let's call that
>> > /foo/bar/.  Then,
>> >
>> > emacs -q
>> > M-x shell RET
>> > rpm --install /foo/bar/<TAB>
>> >
>> > where <TAB> is you pressing the TAB key.  I get this:
>> >
>> > Debugger entered--Lisp error: (void-variable regexp)
>> >   signal(void-variable (regexp))
>> >   completion--some...
>> >   completion--nth-completion...
>> >   completion-try-completion...
>> >   completion--do-completion()
>> >   minibuffer-complete()
>> >   call-interactively(minibuffer-complete)
>> >   ...
>> >   apply...
>> >   ...
>> >   completion-in-region...
>> >   completion-at-point()
>> >   call-interactively(completion-at-point nil nil)
>> 
>> FWIW; I can't reproduce this here.  This is
>> GNU Emacs 24.3.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.8.2)
>> of 2013-08-04 on dex, modified by Debian.
>> 
>> Does this also happen with emacs -Q (capital "Q")?

Yes, it does for me.

$ rpm --install /tftpboot/<TAB>

just yielded the error on my system.

Is 24.3.50 halfway to the next emacs version?  Maybe it's fixed there.

>> 
>> 
>> Thanks,
>> 
>> Michael.

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Michael Heerdegen]

Kevin Layer <layer@known.net> writes:


> >> FWIW; I can't reproduce this here.  This is
> >> GNU Emacs 24.3.50.1 (x86_64-pc-linux-gnu, GTK+ Version 3.8.2)
> >> of 2013-08-04 on dex, modified by Debian.
> >> 
> >> Does this also happen with emacs -Q (capital "Q")?
>
> Yes, it does for me.
>
> $ rpm --install /tftpboot/<TAB>
>
> just yielded the error on my system.
>
> Is 24.3.50 halfway to the next emacs version?  Maybe it's fixed there.

It's a build of trunk.

But I also tried with a build of the 24.2 release, and with 23.
Couldn't reproduce your error there either.

What Emacs version do you use exactly?  If you could try with a newer
version, that would be good.

Else, can you please post a complete backtrace of the error?  Please
load the source of minibuffer.el before (if you have it - this avoids
that the important parts of the backtrace appear as bytecode).


Thanks,

Michael.

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Glenn Morris]

I see this in 24.3 but not current trunk, so it seems fixed.

http://savannah.gnu.org/projects/emacs/

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Kevin Layer]

Michael Heerdegen wrote:

>> What Emacs version do you use exactly?  If you could try with a newer
>> version, that would be good.

See Subject.  It says exactly there.
 
>> Else, can you please post a complete backtrace of the error?  Please
>> load the source of minibuffer.el before (if you have it - this avoids
>> that the important parts of the backtrace appear as bytecode).

Given that Glenn verified the claim, do you still want this?

bug#15022: [Kevin Layer] 24.3: BUG REPORT: comint completion yields error

[Michael Heerdegen]

Kevin Layer <layer@known.net> writes:

> >> Else, can you please post a complete backtrace of the error?  Please
> >> load the source of minibuffer.el before (if you have it - this avoids
> >> that the important parts of the backtrace appear as bytecode).
>
> Given that Glenn verified the claim, do you still want this?

No.  Hopefully, the problem has already been fixed.


Thanks,

Michael.