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Re: slime-connect paredit conflict

From: PJ Weisberg
Subject: Re: slime-connect paredit conflict
Date: Fri, 29 Oct 2010 05:14:16 +0000

On Thu, Oct 28, 2010 at 3:14 AM, PJ Weisberg
<> wrote:
> On Thu, Oct 28, 2010 at 12:20 AM, Glen Rubin <> wrote:
>> I am using emacs, slime, swank combo.  When I try to slime-connect, I
>> initially get the following error:
>> error in process filter: Symbol's value as variable is void: paredit-
>> backward-delete-key
>> If I then try again it works.  So, it's really annoying having to
>> connect twice all the time!  I was able to resolve this by removing a
>> code fragment in my .emacs file, but then end up having problems with
>> undeletable brackets as described in paredit wiki.
>> Here is my .emacs file:
>> ;;; This was installed by package-install.el.
>> ;;; This provides support for the package system and
>> ;;; interfacing with ELPA, the package archive.
>> ;;; Move this code earlier if you want to reference
>> ;;; packages in your .emacs.
>> (when
>>     (load
>>      (expand-file-name "~/.emacs.d/elpa/package.el"))
>>   (package-initialize))
>>    (add-hook 'slime-repl-mode-hook (lambda () (paredit-mode +1)))
>>           ;; Stop SLIME's REPL from grabbing DEL,
>>           ;; which is annoying when backspacing over a '('
>>           (defun override-slime-repl-bindings-with-paredit ()
>>             (define-key slime-repl-mode-map
>>                 (read-kbd-macro paredit-backward-delete-key) nil))
>>                 (add-hook 'slime-repl-mode-hook 'override-slime-repl-
>> bindings-with-paredit)
> Try changing that last line to "(add-hook 'slime-repl-mode-hook
> 'override-slime-repl-bindings-with-paredit t)"

On Thu, Oct 28, 2010 at 5:55 AM, Glen Rubin <> wrote:
> worked!  THX!!!

To take some of the black magic out of this, the problem was that the
file where paredit-backward-delete-key is defined isn't loaded until
the first time you call paredit-mode.  "add-hook" is used to add to a
list of functions that are called when you enter slime-repl-mode, but
by default it adds to the *beginning* of the list.  The extra 't'
tells it to add to the end of the list, so the function that uses the
variable gets called *after* the one that causes it to be loaded.

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