ruby-mode not started automatically

ruby-mode not started automatically

[David Wende]

Using emacs 21.2.1 under Win2K.

Problem:
When I visit a ruby file (*.rb) the
ruby mode is NOT entered automatically.

The file "ruby-mode.el" is apparently in the correct
place since a doing

M-: (load "ruby-mode")

does work and start the mode.

I have the following 2 lines in my .emacs

(add-to-list 'auto-mode-alist '("\\.rb$" . ruby-mode))
    (autoload 'ruby-mode "Ruby mode" "Ruby mode" t)

but this apparently does not work.

HELP!!

David Wende

Re: ruby-mode not started automatically

[Lute Kamstra]

David Wende <dwende@lynxpn.com> writes:

> Using emacs 21.2.1 under Win2K.
>
> Problem:
> When I visit a ruby file (*.rb) the
> ruby mode is NOT entered automatically.
>
> The file "ruby-mode.el" is apparently in the correct
> place since a doing
>
> M-: (load "ruby-mode")
>
> does work and start the mode.
>
> I have the following 2 lines in my .emacs
>
> (add-to-list 'auto-mode-alist '("\\.rb$" . ruby-mode))
>     (autoload 'ruby-mode "Ruby mode" "Ruby mode" t)
>
> but this apparently does not work.

Does this work?

(add-to-list 'auto-mode-alist '("\\.rb\\'" . ruby-mode))
(autoload 'ruby-mode "ruby-mode" "Ruby mode" t)

Lute.

-- 
(spook) => "S Box jihad supercomputer"
(insert-file-contents "~/.signature") => (error "`~/.signature' too rude")

Re: ruby-mode not started automatically

[John Paul Wallington]

David Wende <dwende@lynxpn.com> wrote:

> M-: (load "ruby-mode")
>
> does work and start the mode.
>
> I have the following 2 lines in my .emacs
>
> (add-to-list 'auto-mode-alist '("\\.rb$" . ruby-mode))
>     (autoload 'ruby-mode "Ruby mode" "Ruby mode" t)
> but this apparently does not work.

The second arg to `autoload' is the file name string of the emacs lisp
library to pass to `load'.  It shouldn't be "Ruby mode"; try
"ruby-mode" instead.

Re: ruby-mode not started automatically

[Kai Großjohann]

David Wende <dwende@lynxpn.com> writes:

>     (autoload 'ruby-mode "Ruby mode" "Ruby mode" t)

This tells it to load the function ruby-mode from a file called

    Ruby mode.el

I guess you don't have that file.  It is named ruby-mode.el instead.

-- 
This line is not blank.

Re: ruby-mode not started automatically

[Sergei Gnezdov]

On 2003-06-18, Lute Kamstra <Lute.Kamstra@cwi.nl> wrote:
> David Wende <dwende@lynxpn.com> writes:
>
>> Using emacs 21.2.1 under Win2K.
>>
>> Problem:
>> When I visit a ruby file (*.rb) the
>> ruby mode is NOT entered automatically.
[snip]
> Does this work?
>
> (add-to-list 'auto-mode-alist '("\\.rb\\'" . ruby-mode))
> (autoload 'ruby-mode "ruby-mode" "Ruby mode" t)

The two lines above work great.  What's the difference when compared
with the following solution:

;; make ruby-mode available to emacs
(require 'ruby-mode)
;; autodetect mode by extension
(setq auto-mode-alist
      (append
       '(
	 ("\\.rb\\'" . ruby-mode)
	 ;; append any other modes here
	 )
       auto-mode-alist))

The auto-mode-alist configuration is significantly longer in this
case.

Re: ruby-mode not started automatically

[Daniel Pittman]

On 20 Jan 2005, Sergei Gnezdov wrote:
> On 2003-06-18, Lute Kamstra <Lute.Kamstra@cwi.nl> wrote:
>> David Wende <dwende@lynxpn.com> writes:
>>
>>> Using emacs 21.2.1 under Win2K.
>>>
>>> Problem:
>>> When I visit a ruby file (*.rb) the
>>> ruby mode is NOT entered automatically.
> [snip]
>> Does this work?
>>
>> (add-to-list 'auto-mode-alist '("\\.rb\\'" . ruby-mode))
>> (autoload 'ruby-mode "ruby-mode" "Ruby mode" t)
>
> The two lines above work great.  What's the difference when compared
> with the following solution:
>
> ;; make ruby-mode available to emacs
> (require 'ruby-mode)
> ;; autodetect mode by extension
> (setq auto-mode-alist
> (append
> '(
> 	 ("\\.rb\\'" . ruby-mode)
> 	 ;; append any other modes here
> 	 )
> auto-mode-alist))
>
> The auto-mode-alist configuration is significantly longer in this
> case.

Aside from the very odd spacing, the second solution is a very wordy
version of the first.

If you look at the definition of the `add-to-list' function, using 
'C-h f', you will see that it appends the value to the end of a list...

Regards,
        Daniel
-- 
Can nature possibly be as absurd as it seemed to us in these atomic experiments?
        -- Werner Heisenberg

Re: ruby-mode not started automatically

[Peter Dyballa]

Am 20.01.2005 um 04:41 schrieb Sergei Gnezdov:

> ;; make ruby-mode available to emacs
> (require 'ruby-mode)

require loads Emacs Lisp code when this statement is executed, at 
startup for example. The autoload example loads the same when it's 
needed (for ruby-mode). Using autoload keeps startup time short and 
memory usage small.

> ;; autodetect mode by extension
> (setq auto-mode-alist
>       (append
>        '(
> 	 ("\\.rb\\'" . ruby-mode)
> 	 ;; append any other modes here
> 	 )
>        auto-mode-alist))

Using the following construct allows you to edit auto-mode-alist in one 
place instead of having a dozen snippets scattered around:

(setq auto-mode-alist
   (append
     '(("\\.xsl$"       . sgml-mode)
       ("\\.plist$"     . sgml-mode)
       ("\\.idd$"       . sgml-mode)
       ("\\.ide$"       . sgml-mode)
       ("\\.rb$"        . ruby-mode)
       ("\\.xml$"       . xml-mode)
       ("\\.xsl$"       . xml-mode)
       ("\\.fo$"        . xml-mode)
       ("\\.f90$"       . f90-mode)
       ("\\.tgz$"       . tar-mode)
       ("\\.tar\\.bz2$" . tar-mode)
       ("\\.tar\\.gz$"  . tar-mode))
   auto-mode-alist))

--
Greetings

   Pete

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