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Re: Is there any elisp functions to tell whether the cursor is in a comm

From: Lennart Borgman (gmail)
Subject: Re: Is there any elisp functions to tell whether the cursor is in a comment block?
Date: Wed, 16 Jul 2008 00:19:26 +0200
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv: Gecko/20071031 Thunderbird/ Mnenhy/

Drew Adams wrote:
I would suggest a shorter version of the compatibility line, like
   ;; Compatibility: Emacs=20.*,21.*,22.* XEmacs=unknown

That kind of thing is not much of a problem if it is only people that read a
Compatibility field. But if tools do that, then there would need to be a
well-defined syntax to communicate the various possibilities unambiguously.


`unknown' doesn't seem useful to me. But how should absence be interpreted, in
general: as unknown or incompatible?


  ;; Compatible: Emacs=21.*,22.*
  ;; Incompatible: Emacs=20.*, XEmacs

And absence == unknown.

I would also suggest adding this information to all elisp files on EmacsWiki. Perhaps this can be done automatically

That doesn't sound like a good idea to me. I think you're asking for trouble,

using the dates the files where added

That's definitely a bad idea, IMO - no necessary relation.

and assuming the files only works for the then current released version of Emacs?

Bad assumption. And what is the "current released version" - moving

I would advise against trying to guess compatibility like that. Let library
authors determine and specify the compatibilities explicitly. Else assume

I have asked for that before, but nothing happened. That means that the burden is now on the users.

Maybe something like this can be used then:

1) Announce that an automatic change as above will be made unless package authors (or someone else) adds the Compatible label.

2) Do the automatic change after some weeks.

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