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From: "David W. Glessner" <dwglessn@collins.rockwell.com>
Subject: Re: need editor
Date: 1999/09/13
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Date: 1999-09-13T00:00:00+00:00
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Emmanuel Briot wrote:
> 
>   "David W. Glessner" <dwglessn@collins.rockwell.com> wrote:
> 
> > Rational's Apex provides an emacs/ada-mode combination with
> > similar functionality.  It looks like they modified emacs 19.30
> > and an older ada-mode to work somewhat seemlessly with the rest
> > of the Apex tools.  There are a few quirks, but I find it much,
> > much nicer than the standard Apex editor.  I especially like
> > the "Show Usage" function.
> 
> Could you explain a bit more what the "show usage" function is about ?
> It would be interesting to see if we can put it in the official ada-mode
> distribution, if it is not already there.
> What the FSF ada-mode currently has is a "goto references" function,
> to show where an identifier/variable/subprogram is referenced and used
> all other your project. Is the "Show usage" function the same kind
> of things, or does it show how the function should be used ??

It sounds like Apex's "show usage" is similar to your ada-mode's
"goto references", assuming that an identifier comprises at least
type names, package names, record components, and enumeration
literals.  It also handles renaming.  For example, in the
following snippet, "show usage" for package xyzzy highlights
three items:

with Xyzzy;  -- Xyzzy
package Aaa is
    package X renames Xyzzy; -- Xyzzy
    A : X.Some_Type; -- X
end Aaa;


Based on the ada-mode web page, I was under the impression that
ada-mode only allowed jumping to the declaration or body of an
entity, which is quite limited when compared with a full "goto
references".  Perhaps the web page needs to be updated?

I'll give the latest ada-mode a try.

--
David