Nick Roberts <[EMAIL PROTECTED]> writes:
> > I'd prefer to define the same `define-obsolete-variable-alias' macro as
> > used in XEmacs.
> >
> > That sounds useful.
>
> Does this DTRT?
>
> (defmacro define-obsolete-variable-alias (symbol aliased
> &optional docstring when)
> "Make SYMBOL a variable alias for symbol ALIASED and warn that
> SYMBOL is obsolete. If provided, WHEN should be a string
> indicating when the variable was first made obsolete, for example
> a date or a release number. Fourth arg docstring, if non-nil, is
> documentation for symbol."
> (list 'progn
> `(defvaralias ,symbol ,aliased ,docstring)
> `(make-obsolete-variable ,symbol ,aliased ,when)))
The first line of the docstring should be a complete sentence.
Occurrences of argument names in the docstring should be in capitals.
The fourth argument is WHEN, not DOCSTRING. Personally, I like the
argument names OLDVAR and NEWVAR that XEmacs uses. What about this:
(defmacro define-obsolete-variable-alias (oldvar newvar
&optional when docstring)
"Make OLDVAR a variable alias for NEWVAR and warn that OLDVAR is obsolete.
If provided, WHEN should be a string indicating when OLDVAR was
first made obsolete, for example a date or a release number. The
optional argument DOCSTRING specifies the documentation string
for OLDVAR; if it is omitted or nil, OLDVAR uses the documentation
string of NEWVAR"
`(progn
(defvaralias ,oldvar ,newvar ,docstring)
(make-obsolete-variable ,oldvar ,newvar ,when)))
> The version in XEmacs may be better but I've not looked at at it
> deliberately, as I wasn't sure of the implications of copying it.
Lute, who didn't look at XEmacs' implementation either.
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