> How about this doc string?
>
> (defun set-variable (var val &optional make-local)
> "Set VARIABLE to VALUE. VALUE is a Lisp object.
> VARIABLE should be a user option variable name, a Lisp variable
> meant to be customized by users. You should enter VALUE in Lisp syntax,
> so if you want VALUE to be a string, you must surround it with doublequotes.
> VALUE is used literally, not evaluated.
>
> If VARIABLE has a `variable-interactive' property, that is used as if
> it were the arg to `interactive' (which see) to interactively read VALUE.
>
> If VARIABLE has been defined with `defcustom', then the type information
> in the definition is used to check that VALUE is valid.
>
> With a prefix argument, set VARIABLE to VALUE buffer-locally."
There is one problem with `set-variable'. When called interactively
it doesn't accept aliased user options. For example,
M-x set-variable RET messages-buffer-max-lines RET
reports that there are no matches, whereas `messages-buffer-max-lines'
is a valid alias for `message-log-max'. IMO, `set-variable' should
accept an alias when it is not marked as obsolete.
--
Juri Linkov
http://www.jurta.org/emacs/
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