Re: Is there any elisp functions to tell whether the cursor is in a comment block?

["Lennart Borgman (gmail)" <lennart.borgman@gmail.com>]

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.

Sure.

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

Maybe

   ;; 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,
> here.
> 
>> 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
> target/interpretation.
> 
> I would advise against trying to guess compatibility like that. Let library
> authors determine and specify the compatibilities explicitly. Else assume
> nothing.

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.