From linedit-devel at blacksun.org.uk  Wed Nov 16 16:20:59 2011
From: linedit-devel at blacksun.org.uk (Paul Walker)
Date: Wed, 16 Nov 2011 16:20:59 +0000
Subject: [linedit-devel] Apparent bug in linedit
Message-ID: <20111116162059.GA20452@blacksun.vm.bytemark.co.uk>

Hi

I'm trying to use SBCL under SLIME, and I get the following error when I
start it:

Linedit version 0.17.5 [dumb mode]

debugger invoked on a SIMPLE-ERROR in thread #<THREAD "initial thread"
RUNNING {AAE5809}>: BUG: You seem to have found a bug in Linedit. Please
report this incident along with directions to reproduce and the following
message to linedit-devel at common-lisp.net:`Invariant
(LINEDIT::BACKEND-READY-P LINEDIT::BACKEND) violated.'

Type HELP for debugger help, or (SB-EXT:QUIT) to exit from SBCL.

restarts (invokable by number or by possibly-abbreviated name):
  0: [ABORT] Exit debugger, returning to top level.

((SB-PCL::FAST-METHOD LINEDIT::BACKEND-CLOSE (LINEDIT::TERMINAL))
#<unavailable argument> #<unavailable argument> #<LINEDIT::DUMB-EDITOR
#{AF64091}>)
0] 

It works when I run SBCL from the command line.

I'm using Debian stable, with GNU Emacs 23.2.1 and SBCL 1.0.40.0.debian.
linedit is installed through Quicklisp. I can't think of anything else, but
I'm only just starting to use Lisp; if I've missed something that'd be
helpful please let me know.

Thanks

-- 
Paul



From nikodemus at random-state.net  Wed Nov 16 18:30:01 2011
From: nikodemus at random-state.net (Nikodemus Siivola)
Date: Wed, 16 Nov 2011 20:30:01 +0200
Subject: [linedit-devel] Apparent bug in linedit
In-Reply-To: <20111116162059.GA20452@blacksun.vm.bytemark.co.uk>
References: <20111116162059.GA20452@blacksun.vm.bytemark.co.uk>
Message-ID: <CADow0CrxAqR1tLeai=hPfMs18ycOy1zbwk1C_O9YRBsRMrDW1w@mail.gmail.com>

On 16 November 2011 18:20, Paul Walker <linedit-devel at blacksun.org.uk>

> I'm trying to use SBCL under SLIME, and I get the following error when I
> start it:
>
> Linedit version 0.17.5 [dumb mode]
>
> debugger invoked on a SIMPLE-ERROR in thread #<THREAD "initial thread"

The short version: You cannot use linedit together with Slime -- and
there's really no point in doing so.

In your .sbclrc you probably have the lines

  (ql:quickload "linedit")
  (linedit:install-repl :wrap-current t)

or the equivalent. Replace that with

(when (interactive-stream-p *standard-input*)
  (ql:quickload "linedit")
  (funcall (intern "INSTALL-REPL" :linedit) :wrap-current t))

and the repl should be activated when you run SBCL terminal, but not
when Slime starts it.

If you've dumped a core with linedit preloaded, the same applies --
but don't call INSTALL-REPL before saving the core.

Cheers,

?-- Nikodemus



From linedit-devel at blacksun.org.uk  Thu Nov 17 13:04:09 2011
From: linedit-devel at blacksun.org.uk (Paul Walker)
Date: Thu, 17 Nov 2011 13:04:09 +0000
Subject: [linedit-devel] Apparent bug in linedit
In-Reply-To: <CADow0CrxAqR1tLeai=hPfMs18ycOy1zbwk1C_O9YRBsRMrDW1w@mail.gmail.com>
References: <20111116162059.GA20452@blacksun.vm.bytemark.co.uk>
	<CADow0CrxAqR1tLeai=hPfMs18ycOy1zbwk1C_O9YRBsRMrDW1w@mail.gmail.com>
Message-ID: <20111117130409.GA27260@blacksun.vm.bytemark.co.uk>

On Wed, Nov 16, 2011 at 08:30:01PM +0200, Nikodemus Siivola wrote:

> (when (interactive-stream-p *standard-input*)
>   (ql:quickload "linedit")
>   (funcall (intern "INSTALL-REPL" :linedit) :wrap-current t))
> and the repl should be activated when you run SBCL terminal, but not
> when Slime starts it.

Spot on, even down to the original lines in .sblrc. Your replacement works
beautifully, thanks. I'm off now to go and understand *how* it works. ;-)

(That's a topic for Lisp books, not for this list!)

Thanks for the prompt help,

-- 
Paul