From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Philip Kaludercic Newsgroups: gmane.emacs.bugs Subject: bug#57102: 29.0.50; Peculiar file-name-split edge case Date: Fri, 12 Aug 2022 16:29:15 +0000 Message-ID: <87zgg98lyc.fsf@posteo.net> References: <87a68cwlnv.fsf@posteo.net> <87y1vtmq4d.fsf@gnus.org> <87bkspa225.fsf@posteo.net> <87lertlafe.fsf@gnus.org> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="26053"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 57102@debbugs.gnu.org To: Lars Ingebrigtsen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Fri Aug 12 18:42:51 2022 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oMXkJ-0006Zl-4c for geb-bug-gnu-emacs@m.gmane-mx.org; 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Fri, 12 Aug 2022 18:29:16 +0200 (CEST) In-Reply-To: <87lertlafe.fsf@gnus.org> (Lars Ingebrigtsen's message of "Fri, 12 Aug 2022 17:59:49 +0200") Autocrypt: addr=philipk@posteo.net; prefer-encrypt=nopreference; keydata= mDMEYHHqUhYJKwYBBAHaRw8BAQdAp3GdmYJ6tm5McweY6dEvIYIiry+Oz9rU4MH6NHWK0Ee0QlBo aWxpcCBLYWx1ZGVyY2ljIChnZW5lcmF0ZWQgYnkgYXV0b2NyeXB0LmVsKSA8cGhpbGlwa0Bwb3N0 ZW8ubmV0PoiQBBMWCAA4FiEEDM2H44ZoPt9Ms0eHtVrAHPRh1FwFAmBx6lICGwMFCwkIBwIGFQoJ CAsCBBYCAwECHgECF4AACgkQtVrAHPRh1FyTkgEAjlbGPxFchvMbxzAES3r8QLuZgCxeAXunM9gh io0ePtUBALVhh9G6wIoZhl0gUCbQpoN/UJHI08Gm1qDob5zDxnIHuDgEYHHqUhIKKwYBBAGXVQEF AQEHQNcRB+MUimTMqoxxMMUERpOR+Q4b1KgncDZkhrO2ql1tAwEIB4h4BBgWCAAgFiEEDM2H44Zo Pt9Ms0eHtVrAHPRh1FwFAmBx6lICGwwACgkQtVrAHPRh1Fw1JwD/Qo7kvtib8jy7puyWrSv0MeTS g8qIxgoRWJE/KKdkCLEA/jb9b9/g8nnX+UcwHf/4VfKsjExlnND3FrBviXUW6NcB X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.io gmane.emacs.bugs:239443 Archived-At: Lars Ingebrigtsen writes: > Philip Kaludercic writes: > >> How sensible is this in the first place? Shouldn't it rather be >> something like >> >> (file-equal-p (apply #'file-name-concat (file-name-split filename)) filename) >> >> [ which is currently likewise not given ] >> >> Or to put it differently, who does the preceding empty string benefit if >> we ignore the condition mentioned in the docstring? Are there any >> real-world use-cases? > > You need to be able to tell (file-name-split "a/b") => ("a" "b") and > (file-name-split "/a/b") => ("" "a" "b") apart. Could one instead prefix the list with a symbol (either `absolute' or `relative') to distinguish the two cases. Or do you think that would just make it more complicated.