showing matching {}[]() in lisp and slime mode

showing matching {}[]() in lisp and slime mode

[Jyrki Jaakkola]

Hello!

I have been trying to add parentheses matching for square brackets as well
as round bracket besides normally available parentheses in lisp mode. I'm
using lispbox from http://www.gigamonkeys.com/book/lispbox. I need bracket
matching because I'm trying to use meta parser from
http://home.pipeline.com/~hbaker1/Prag-Parse.html.

I have tried changing lisp-mode-syntax-table as well as
emacs-lisp-mode-syntax-table from lisp-mode.el. Tried to add a hook to
change syntax table when going to lisp-mode or slime-mode. I have also
tried mic-paren.el (and I'm currently using it) to get it highlight
matching brackets but in vain.

Anybody care to share some information how I could get it working? I would
really appreciate it. Thanks in advance.

Yours sincerely,

Jyrki Jaakkola

Re: showing matching {}[]() in lisp and slime mode

[Stefan Monnier]

> Anybody care to share some information how I could get it working?
> I would really appreciate it.  Thanks in advance.

Give us more info about what you've done.
Paren/backet/brace matching normally "just works" if you set the
syntax-table properly.


        Stefan

Re: showing matching {}[]() in lisp and slime mode

[Jyrki Jaakkola]

>Give us more info about what you've done.
>Paren/backet/brace matching normally "just works" if you set the
>syntax-table properly.

First I tried editing lisp-mode.el.

from emacs-lisp/lisp-mode.el:
(defvar emacs-lisp-mode-syntax-table
  (let ((table (make-syntax-table)))
.
.
.
      (modify-syntax-entry ?\( "()  " table)
      (modify-syntax-entry ?\) ")(  " table)
      (modify-syntax-entry ?\[ "(]  " table)
      (modify-syntax-entry ?\] ")[  " table)
      (modify-syntax-entry ?\{ "(}  " table)
      (modify-syntax-entry ?\} "){  " table))
    table))

(defvar lisp-mode-syntax-table
  (let ((table (copy-syntax-table emacs-lisp-mode-syntax-table)))
    (modify-syntax-entry ?\[ "(]  " table)
    (modify-syntax-entry ?\] ")[  " table)
    (modify-syntax-entry ?\{ "(}  " table)
    (modify-syntax-entry ?\} "){  " table)
    (modify-syntax-entry ?# "' 14bn" table)
    (modify-syntax-entry ?| "\" 23b" table)
    table))

When those didn't work I tried adding a hook to slime mode

from site-lisp\slime.el:
(setq load-path (cons (lispbox-file "slime-20060110") load-path))
(setenv "SBCL_HOME" (lispbox-file "sbcl-0.9.7/lib/sbcl"))
(setenv "CCL_DEFAULT_DIRECTORY" (lispbox-file "openmcl-1.0"))
(require 'slime)
(slime-setup)

;; my own code starts here
(defun my-keybindings-hook ()
  ((modify-syntax-entry ?\[ "(]  " lisp-mode-syntax-table)
   (modify-syntax-entry ?\] ")[  " lisp-mode-syntax-table)
   (modify-syntax-entry ?\{ "(}  " lisp-mode-syntax-table)
   (modify-syntax-entry ?\} "){  " lisp-mode-syntax-table)))
(add-hook 'lisp-mode-hook 'my-keybindings-hook)
(add-hook 'slime-mode-hook 'my-keybindings-hook)
;; my own code ends here

(lispbox-find-lisps)

(provide 'lispbox)

Re: showing matching {}[]() in lisp and slime mode

[Stefan Monnier]

> First I tried editing lisp-mode.el.

Bad idea.

> When those didn't work I tried adding a hook to slime mode

> from site-lisp\slime.el:
> (setq load-path (cons (lispbox-file "slime-20060110") load-path))
> (setenv "SBCL_HOME" (lispbox-file "sbcl-0.9.7/lib/sbcl"))
> (setenv "CCL_DEFAULT_DIRECTORY" (lispbox-file "openmcl-1.0"))
> (require 'slime)
> (slime-setup)

> ;; my own code starts here
> (defun my-keybindings-hook ()
>   ((modify-syntax-entry ?\[ "(]  " lisp-mode-syntax-table)
>    (modify-syntax-entry ?\] ")[  " lisp-mode-syntax-table)
>    (modify-syntax-entry ?\{ "(}  " lisp-mode-syntax-table)
>    (modify-syntax-entry ?\} "){  " lisp-mode-syntax-table)))

Why "lisp-mode-syntax-table"?

> (add-hook 'lisp-mode-hook 'my-keybindings-hook)
> (add-hook 'slime-mode-hook 'my-keybindings-hook)

In what way does it not work?  Have you tried it in Lisp-mode and/or in
Slime mode?  My guess is that you only tried it in Slime-mode, where it
probably didn't work because slime mode uses another syntax-table than
lisp-mode-syntax-table (presumably it's called slime-mode-syntax-table).


        Stefan

Re: showing matching {}[]() in lisp and slime mode

[Johan Bockgård]

Stefan Monnier <monnier@iro.umontreal.ca> writes:

> In what way does it not work? Have you tried it in Lisp-mode and/or
> in Slime mode? My guess is that you only tried it in Slime-mode,
> where it probably didn't work because slime mode uses another
> syntax-table than lisp-mode-syntax-table (presumably it's called
> slime-mode-syntax-table).

Slime mode is a minor mode.

-- 
Johan Bockgård

Re: showing matching {}[]() in lisp and slime mode

[Johan Bockgård]

Jyrki Jaakkola <jjkola@email.com> writes:

> (defun my-keybindings-hook ()
>   ((modify-syntax-entry ?\[ "(]  " lisp-mode-syntax-table)
    ^^
What's up with this??

-- 
Johan Bockgård

Re: showing matching {}[]() in lisp and slime mode

[Jyrki Jaakkola]

bojohan+news@dd.chalmers.se (Johan Bockgård) wrote:

>Jyrki Jaakkola <jjkola@email.com> writes:
>
>> (defun my-keybindings-hook ()
>>   ((modify-syntax-entry ?\[ "(]  " lisp-mode-syntax-table)
>    ^^
>What's up with this??

I thought that maybe loading slime mode changed key bindings so I
tried adding a hook to change them to my liking but apparently it
didn't help.

Jyrki Jaakkola

Re: showing matching {}[]() in lisp and slime mode

[Kevin Rodgers]

Jyrki Jaakkola wrote:
> bojohan+news@dd.chalmers.se (Johan Bockgård) wrote:
>>Jyrki Jaakkola <jjkola@email.com> writes:
>>>(defun my-keybindings-hook ()
>>>  ((modify-syntax-entry ?\[ "(]  " lisp-mode-syntax-table)
>>
>>   ^^
>>What's up with this??
> 
> I thought that maybe loading slime mode changed key bindings so I
> tried adding a hook to change them to my liking but apparently it
> didn't help.

Johan is referring to the fact that "((" yields an invalid function.

-- 
Kevin Rodgers

Re: showing matching {}[]() in lisp and slime mode

[Jyrki Jaakkola]

Kevin Rodgers <ihs_4664@yahoo.com> wrote:

>Jyrki Jaakkola wrote:
>> bojohan+news@dd.chalmers.se (Johan Bockgård) wrote:
>>>Jyrki Jaakkola <jjkola@email.com> writes:
>>>>(defun my-keybindings-hook ()
>>>>  ((modify-syntax-entry ?\[ "(]  " lisp-mode-syntax-table)
>>>
>>>   ^^
>>>What's up with this??
>> 
>> I thought that maybe loading slime mode changed key bindings so I
>> tried adding a hook to change them to my liking but apparently it
>> didn't help.
>
>Johan is referring to the fact that "((" yields an invalid function.

Ah, ok. I corrected it but now slime doesn't start anymore. So I had
to remove those hooks.

Jyrki Jaakkola

Re: showing matching {}[]() in lisp and slime mode

[Jyrki Jaakkola]

 Stefan Monnier <monnier@iro.umontreal.ca> wrote:

>> Anybody care to share some information how I could get it working?
>> I would really appreciate it.  Thanks in advance.
>
>Give us more info about what you've done.
>Paren/backet/brace matching normally "just works" if you set the
>syntax-table properly.

There is
(set-syntax-table lisp-mode-syntax-table)
in different slime modes. And I tried to change lisp-mode-syntax-table
with no effect.

As I'm quite new at customizing emacs, so could somebody provide at
least some pointers what and where I should check so that I could try
on my own?

Jyrki Jaakkola

Re: showing matching {}[]() in lisp and slime mode

[Jyrki Jaakkola]

When I checked syntax table mappings in slime mode I got this:

[               _ 	which means: symbol
] .. _          _ 	which means: symbol
{               _ 	which means: symbol
} .. DEL        _ 	which means: symbol

and then

The parent syntax table is:

[               (]	which means: open, matches ]
]               )[	which means: close, matches [
{               (}	which means: open, matches }
}               ){	which means: close, matches {

So it seems like somewhere it changes the syntax table but I can't
understand where.

Jyrki Jaakkola