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Re: find-file-project

From: Stephen Leake
Subject: Re: find-file-project
Date: Wed, 16 Sep 2015 16:11:40 -0500
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (windows-nt)

Dmitry Gutov <address@hidden> writes:

> On 09/16/2015 04:31 PM, Stephen Leake wrote:
>> Except that 'completing-read' does require exactly that. I did try to
>> prepend directories for uniquification; it doesn't work. Or at least it
>> would require major surgery on completing-read to make it work.
> You might have to use a different `category' and set up a
> `completion-category-overrides' entry that would only use
> `partial-completion' as its style.
> You'll be able input "/file", and it'll match "foo/bar/file.el". The
> completion table will have to handle the `boundaries' action properly,
> though.

Is there documentation on this? The doc strings and elisp manual are not

Or a working example?

>> Can you be more specific? What is the file name you are trying to
>> complete to?
> Suppose I have ./test/unit/foo_test.rb and ./test/functional/foo_test.rb.
> Typing 'unit/foo' or 'functional/foo' would return one or the other.
> Note that trying to uniquify the paths automatically might create
> abbreviations where the user would try to input a path segment fully
> (not in this example, though).

Yes, that's a good use case. I'll add it to the file completion tests.

I'll leave discussion of how to deal with the completing-read result to
the other thread.

>> And in the global case, the elisp code has no idea what path global is
>> using; it must always call global to get an absolute path.
> I don't understand. Can't Global return absolute file paths?

Yes, it can. But they don't get returned from completing-read.

You deleted too much context here, so I don't know what you are really

>> It would make sense to modify completing-read to be able to return
>> meta-information with the completion. I looked at that briefly, and I
>> have no idea how to go about it.
> It must be doable, but we can manage without it.

Please provide code that shows how; I have no idea.

-- Stephe

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