Re: [jdee-devel] Right way to handle functions renamed in emacs.

[Carlos K. <cko...@pi...>]

This might be a question of where to draw the line on the emacs
version that is supported.  There seem to be big
backwards-compatibility issues all around between emacs 21 and 22.
Time marches on; when does one decide that, like Netscape 4, emacs 21
is no longer to be supported?  It would be nice to be able to write
code against one standard.  I use only one distro (gentoo), so I
cannot speak for all camps.

At Wed, 16 Jan 2008 14:13:54 +1300,
Len Trigg wrote:
> 
> 
> Lisp coding style question.  In emacs 22, turn-on-font-lock-if-enabled
> has been renamed to turn-on-font-lock-if-desired.  This function is
> called by jde-java-font-lock.el.
> 
> In general, what is the recommended way of making fixes for this?
> 
> * Just update to the new function name.  Obviously bad.
> 
> * If turn-on-font-lock-if-desired doesn't exist, define it as an alias
> to turn-on-font-lock-if-enabled.  If this is OK, why didn't the emacs
> people do this themselves.  Seems bad to be defining functions not in
> the jde namespace.
> 
> * Define jde-turn-on-font-lock-if-desired as an alias to whichever of
> the functions is defined. Seems unwieldy.
> 
> * Replace calls to turn-on-font-lock-if-enabled with something like:
> (if (fboundp 'turn-on-font-lock-if-desired)
>     (turn-on-font-lock-if-desired)
>   (turn-on-font-lock-if-enabled))
> Would have to be done in each location (not a problem in this case)
> 
> * Some other method?
> 
> 
> Cheers,
> Len.
> 
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