Force Reread of "local variables:"

Force Reread of "local variables:"

[Tennis Smith]

Hi,

Anyone have code that will force a re-read of a "local variables:"
sections in a file?

I have several files with this sort of data appended at the bottom:

# -----------------------------------------------------------------------------
# ;;; Local Variables: ***
# ;;; mode: tcl ***
# ;;; project: SUMCHK ***
# ;;; End: ***

If I change the "project" var in the file, is there a way to have
emacs reread this?

TIA,
-Tennis

Re: Force Reread of "local variables:"

[Eli Zaretskii]

> From: tennis_smith@yahoo.com (Tennis Smith)
> Newsgroups: gnu.emacs.help
> Date: 31 Jan 2004 21:01:42 -0800
> 
> Anyone have code that will force a re-read of a "local variables:"
> sections in a file?

Try this:

   "M-: (hack-local-variables) RET"

You need to type that with the file's buffer being the current
selected buffer.

Re: Force Reread of "local variables:"

[Oliver Scholz]

tennis_smith@yahoo.com (Tennis Smith) writes:

> Anyone have code that will force a re-read of a "local variables:"
> sections in a file?
>
> I have several files with this sort of data appended at the bottom:
>
> # -----------------------------------------------------------------------------
> # ;;; Local Variables: ***
> # ;;; mode: tcl ***
> # ;;; project: SUMCHK ***
> # ;;; End: ***
>
> If I change the "project" var in the file, is there a way to have
> emacs reread this?

If your auto-mode detection is set up correctly and if you don't have
important buffer-local variables other than those in the “Local
Variables” section, you can just do M-x normal-mode RET.

I mention these two “ifs” above, because as far as buffer variables
are concerned this has basically the same effect as killing the buffer
and re-visiting it.

Btw, you probably know this, but if ‘#’ is the comment character of
your language, you can just write:

# Local Variables:
# mode: tcl
# project: SUMCHK
# End:


    Oliver
-- 
14 Pluviôse an 212 de la Révolution
Liberté, Egalité, Fraternité!

Re: Force Reread of "local variables:"

[Joakim Hove]

[-- Attachment #1: Type: text/plain, Size: 194 bytes --]


Hello,

> Anyone have code that will force a re-read of a "local variables:"
> sections in a file?

I have attatched some code I use (and find quite useful) for
manipulating buffer-variables:


[-- Attachment #2: buffer-variables.el --]
[-- Type: application/emacs-lisp, Size: 5247 bytes --]

[-- Attachment #3: my-buffer-variables.el --]
[-- Type: application/emacs-lisp, Size: 1132 bytes --]

[-- Attachment #4: Type: text/plain, Size: 496 bytes --]


Please ask if you have questions.

HTH - Joakim

-- 
  /--------------------------------------------------------------------\
 / Joakim Hove  / hove@bccs.no  /  (55 5) 84076       |                 \
 | Unifob AS, Avdeling for Beregningsvitenskap (BCCS) | Stabburveien 18 |
 | CMU                                                | 5231 Paradis    |
 \ Thormøhlensgt.55, 5020 Bergen.                     | 55 91 28 18     /
  \--------------------------------------------------------------------/

[-- Attachment #5: Type: text/plain, Size: 151 bytes --]

_______________________________________________
Help-gnu-emacs mailing list
Help-gnu-emacs@gnu.org
http://mail.gnu.org/mailman/listinfo/help-gnu-emacs

Re: Force Reread of "local variables:"

[Kevin Rodgers]

Oliver Scholz wrote:

> If your auto-mode detection is set up correctly and if you don't have
> important buffer-local variables other than those in the “Local
> Variables” section, you can just do M-x normal-mode RET.
> 
> I mention these two “ifs” above, because as far as buffer variables
> are concerned this has basically the same effect as killing the buffer
> and re-visiting it.

So why not just type `C-x C-v RET'?

-- 
Kevin Rodgers

Re: Force Reread of "local variables:"

[Tennis Smith]

Eh? :)  

All I got was this:

Joakim Hove <hove@bccs.no> wrote in message news:<4yoeshh65x.fsf@skjellgran.ii.uib.no>...
> Please ask if you have questions.
> 
> HTH - Joakim
> 
> -- 
>   /--------------------------------------------------------------------\
>  / Joakim Hove  / hove@bccs.no  /  (55 5) 84076       |                 \
>  | Unifob AS, Avdeling for Beregningsvitenskap (BCCS) | Stabburveien 18 |
>  | CMU                                                | 5231 Paradis    |
>  \ Thormøhlensgt.55, 5020 Bergen.                     | 55 91 28 18     /
>   \--------------------------------------------------------------------/
> 
> --

Re: Force Reread of "local variables:"

[Oliver Scholz]

Kevin Rodgers <ihs_4664@yahoo.com> writes:

> Oliver Scholz wrote:
>
>> If your auto-mode detection is set up correctly and if you don't have
>> important buffer-local variables other than those in the “Local
>> Variables” section, you can just do M-x normal-mode RET.
>> I mention these two “ifs” above, because as far as buffer variables
>> are concerned this has basically the same effect as killing the buffer
>> and re-visiting it.
>
> So why not just type `C-x C-v RET'?
[...]

Without `saveplace' you probably suddenly look at a different place in
the file after doing `C-x C-v RET'. Also you loose the information
about the file encoding, for example if you visited the file with 
`C-x RET c some-fancy-coding-system RET C-x C-f'

    Oliver
-- 
15 Pluviôse an 212 de la Révolution
Liberté, Egalité, Fraternité!

Re: Force Reread of "local variables:"

[Joakim Hove]

tennis_smith@yahoo.com (Tennis Smith) writes:

> Eh? :)  
>
> All I got was this:
>
> Joakim Hove <hove@bccs.no> wrote in message news:<4yoeshh65x.fsf@skjellgran.ii.uib.no>...
>> Please ask if you have questions.

That was weird - I can read my own news-posting alright. Anyway, I
had included two small lisp files which implement functionality which
I use quite a lot to manipulate buffer-variables. 

I then tried mailing to: tennis_smith@yahoo.com, but this mail
bounced due to an exceeded quota at yahoo. If you provide me with
another e-mail adress I can mail it to you.


Joakim

-- 
  /--------------------------------------------------------------------\
 / Joakim Hove  / hove@bccs.no  /  (55 5) 84076       |                 \
 | Unifob AS, Avdeling for Beregningsvitenskap (BCCS) | Stabburveien 18 |
 | CMU                                                | 5231 Paradis    |
 \ Thormøhlensgt.55, 5020 Bergen.                     | 55 91 28 18     /
  \--------------------------------------------------------------------/

Re: Force Reread of "local variables:"

[Reiner Steib]

On Tue, Feb 03 2004, Kevin Rodgers wrote:

> Oliver Scholz wrote:
>
>> [...] M-x normal-mode RET [...]
>
> So why not just type `C-x C-v RET'?

The latter doesn't preserve point and mark.

Bye, Reiner.
-- 
       ,,,
      (o o)
---ooO-(_)-Ooo--- PGP key available via WWW   http://rsteib.home.pages.de/

Re: Force Reread of "local variables:"

[Kevin Rodgers]

Oliver Scholz wrote:
 > Kevin Rodgers <ihs_4664@yahoo.com> writes:
 >>So why not just type `C-x C-v RET'?
 > Without `saveplace' you probably suddenly look at a different place in
 > the file after doing `C-x C-v RET'.

Good point, also made by Reiner in his reply.  But `M-x revert-buffer
RET yes RET' handles that, although it's a lot of typing unless you
define a keyboard macro for it.

 > Also you loose the information
 > about the file encoding, for example if you visited the file with
 > `C-x RET c some-fancy-coding-system RET C-x C-f'

Ouch, that's a tricky one.  If `C-x RET c some-fancy-coding system RET
M-x revert-buffer RET' works, you'd just have to automatically save
"some-fancy-coding-system" to make it easy to insert into the minibuffer
-- maybe in a register?

-- 
Kevin Rodgers

Re: Force Reread of "local variables:"

[Reiner Steib]

On Tue, Feb 03 2004, Joakim Hove wrote:

> tennis_smith@yahoo.com (Tennis Smith) writes:
[...]
>> All I got was this:
>>
>> Joakim Hove <hove@bccs.no> wrote in message news:<4yoeshh65x.fsf@skjellgran.ii.uib.no>...
>>> Please ask if you have questions.
>
> That was weird [...]

Not really.  Tennis read news via the Goggle interface and Google
doesn't archive attachments.

For some reason Google only archives the last part, "<4 text>" in your
article:

,----[ `C-d' on <news:4yoeshh65x.fsf@skjellgran.ii.uib.no> ]
| Joakim Hove          <* mixed> Re: Force Reread of "local variables:"
|  Joakim Hove          <4 text>
|  Joakim Hove          <3 emacs-lisp>
|  Joakim Hove          <2 emacs-lisp>
|  Joakim Hove          <1 text>
`----

You could include lisp code inline and Tennis should get a real
newsreader instead of using Google, preferably Gnus of course. :-)

Bye, Reiner.
-- 
       ,,,
      (o o)
---ooO-(_)-Ooo--- PGP key available via WWW   http://rsteib.home.pages.de/