Richard Stallman wrote:
(2) While C-u locate RET gives the prompt "Run locate (like this): ",
locate-with-filter gives the same prompt, "Locate: ", regardless of
whether or not a prefix arg is used. The behaviour of C-u
locate-with-filter is analogous to C-u locate (due to the value
current-prefix-arg), but the use of a prefix arg is not documented
for locate-with-filter. (All of this is also true for Emacs 21.)
That's not serious.
And apparently the feature is non-intentional.
`locate-in-alternate-database' has a similar undocumented (and
probably non-intentional) feature.
Is the way the `locate' command uses `current-prefix-arg', outside an
interactive declaration and without checking that `locate' itself was
called interactively, actually legitimate? It means that any function
that calls locate, and uses itself the prefix arg with unrelated
meaning, has to bind `current-prefix-arg' to nil around the call to
`locate', otherwise a bug results. (This is actually part of what my
previous patch does for `locate-update', which was necessary, because
otherwise `C-u g' produces a bug.) This does not seem very clean to me.
In the case of `locate-with-filter' and `locate-in-alternate-database'
the result could actually be considered a feature rather than a bug.
Sincerely,
Luc Teirlinck.
_______________________________________________
emacs-pretest-bug mailing list
emacs-pretest-bug@gnu.org
http://lists.gnu.org/mailman/listinfo/emacs-pretest-bug
