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Re: locate-library, the NOSUFFIX arg and a [PATCH]
From: |
Stefan Monnier |
Subject: |
Re: locate-library, the NOSUFFIX arg and a [PATCH] |
Date: |
Thu, 21 Jan 2010 09:08:10 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.1.91 (gnu/linux) |
> ,----
> | It can omit the suffix (a.k.a. file-name extension) if NOSUFFIX is
> | nil (which is the default, see below).
> `----
This is poorly worded but means that it will not only look for files
of the form DIR/FILE.SUFFIX but also for DIR/FILE (i.e. it will add the
empty string as a valid suffix).
> I don't think the docstring even reflects the intent of locate-library's
> NOSUFFIX arg esp. as it doesn't appear to be _able_ to return a library name
> sans extension when not called-interactively.
Indeed, this arg only controls how the search is performed, not in which
form the result will be returned.
> (locate-file-completion-table load-path '("") "subr" #'(lambda (y)
> (string-match-p ".*z" y)) 'nil)
^^^^^^^^^^^^^^^^^^^^^^^^
aka (string-match "z" y)
> => "subr.el.gz"
Looks right to me.
> (let (nosuffix)
> (append (unless nosuffix (get-load-suffixes))
> load-file-rep-suffixes))
> => (".elc" ".elc.gz" ".el" ".el.gz" "" ".gz")
> (let ((nosuffix t))
> (append (unless nosuffix (get-load-suffixes))
> load-file-rep-suffixes))
> => ("" ".gz")
All looks as expected.
> "When called from a program and NOSUFFIX is a boolean, string, or list of
> strings, return LIBRARY's file-truename as if by `file-name-sans-extension'."
That completely changes the meaning of this argument. Why don't you
call file-name-sans-extension outside of locate-library instead, if you
want that?
Stefan
- locate-library, the NOSUFFIX arg and a [PATCH], MON KEY, 2010/01/19
- Re: locate-library, the NOSUFFIX arg and a [PATCH],
Stefan Monnier <=
- Re: locate-library, the NOSUFFIX arg and a [PATCH], MON KEY, 2010/01/21
- Re: locate-library, the NOSUFFIX arg and a [PATCH], Stefan Monnier, 2010/01/22
- Re: locate-library, the NOSUFFIX arg and a [PATCH], MON KEY, 2010/01/22
- Re: locate-library, the NOSUFFIX arg and a [PATCH], Stefan Monnier, 2010/01/23
- Re: locate-library, the NOSUFFIX arg and a [PATCH], MON KEY, 2010/01/23
- Re: locate-library, the NOSUFFIX arg and a [PATCH], Stefan Monnier, 2010/01/24
- Re: locate-library, the NOSUFFIX arg and a [PATCH], MON KEY, 2010/01/26
- Re: locate-library, the NOSUFFIX arg and a [PATCH], Stefan Monnier, 2010/01/27
- Re: locate-library, the NOSUFFIX arg and a [PATCH], MON KEY, 2010/01/27
- Re: locate-library, the NOSUFFIX arg and a [PATCH], Stefan Monnier, 2010/01/27