220 26353 <87y45zcxob.fsf@gmail.com> article Path: news.gmane.org!not-for-mail From: Moritz Klammler Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: File globbing in the standard library Date: Tue, 21 Jun 2016 00:17:40 +0200 Lines: 90 Approved: news@gmane.org Message-ID: <87y45zcxob.fsf@gmail.com> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: ger.gmane.org 1466461077 22570 80.91.229.3 (20 Jun 2016 22:17:57 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Mon, 20 Jun 2016 22:17:57 +0000 (UTC) To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBDHI7IWJYALRBCGXUG5QKGQEQFTAQUI@isocpp.org Tue Jun 21 00:17:49 2016 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-lb0-f197.google.com ([209.85.217.197]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1bF7Vp-0007Nj-J2 for gclcip-std-proposals@m.gmane.org; Tue, 21 Jun 2016 00:17:45 +0200 Original-Received: by mail-lb0-f197.google.com with SMTP id c1sf34778808lbw.0 for ; Mon, 20 Jun 2016 15:17:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=isocpp-org.20150623.gappssmtp.com; s=20150623; h=from:to:subject:date:in-reply-to:message-id:user-agent:mime-version :content-transfer-encoding:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=iI56Bb/ZcxAu1ww0B+NTnMogdH4d0/0weDZqPh+TIL0=; b=MQF2VB6dRU2i6tJVPKtaXuMdUGtjMJv4xGZCeiWt9dlDunAc54pDQ5FHh1OUaZB9/L nSEHsTKN4fx2YhoLuq31gtFmowqcQvY3IpRQfsp2NLRa/1chVD/IG2ZyWrjUP7CpNXFr wdlO4GwnHh5tbxOt1YNU66Sj2rxZqMWe88DlPPNFbdnqDVRENTvRsaTmxfxOUAjhiOWl L5+rgK23GmLW4n+SGFO3UdgJYKAhb2RD7VUrT1YTASwyrFLdrh+3ZcryFory7lq05ZrP WGT9ptJlJPJgCMzRjQqOiL9RWNsqelFH4q3FUsMqe2KTPIzEVOACxoaZvvmGxfVYuQEG 6W3Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:in-reply-to:message-id :user-agent:mime-version:content-transfer-encoding:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=iI56Bb/ZcxAu1ww0B+NTnMogdH4d0/0weDZqPh+TIL0=; b=Q29kfgzEq6T5fR0LAkSwhL7AglRFH6kcTu5z5S2vzdqlO6mWIj37zQIPeNLLFfehkZ QNpWDXgqvNtNXwSadLR8KejeGdkhM84QdfnOauq/UYOBup8pfjxpDZaORofuI/fFrJuK CswXUx3sG+Z/TQ1w7Dq7MTzz7N0sCXHsSQ/hDBvciIP1HCF2H+TaLdd/lY7KYUiJQyKm Kt1ciqCJutPoIMYl055BdwM1aj2G00SlwNfmUgWpJgx1RVucu7QKYxO4xLsz9InhX4j0 NeOKZy4zBe1P01FShHST2N4dR2hQM5SX3TEaJZhQhc7nQ3N9AH3HgcJ3va8fJJTZxZH5 Ock X-Gm-Message-State: ALyK8tK2e+EHtI2b7vzbES+ZRqvFluuvvP1c1m39rhDj+IDL4osmgQKV62E0MSPkg+pf1A== X-Received: by 10.28.197.2 with SMTP id v2mr31560wmf.1.1466461064982; Mon, 20 Jun 2016 15:17:44 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.46.0.96 with SMTP id 93ls190587lja.87.gmail; Mon, 20 Jun 2016 15:17:43 -0700 (PDT) X-Received: by 10.25.43.213 with SMTP id r204mr5201916lfr.112.1466461063569; Mon, 20 Jun 2016 15:17:43 -0700 (PDT) Original-Received: from mail-lb0-x230.google.com (mail-lb0-x230.google.com. [2a00:1450:4010:c04::230]) by mx.google.com with ESMTPS id uh6si24406881lbc.47.2016.06.20.15.17.43 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 Jun 2016 15:17:43 -0700 (PDT) Received-SPF: pass (google.com: domain of moritz.klammler@gmail.com designates 2a00:1450:4010:c04::230 as permitted sender) client-ip=2a00:1450:4010:c04::230; Original-Received: by mail-lb0-x230.google.com with SMTP id ak10so2101160lbc.3 for ; Mon, 20 Jun 2016 15:17:43 -0700 (PDT) X-Received: by 10.194.116.195 with SMTP id jy3mr18712387wjb.36.1466461063168; Mon, 20 Jun 2016 15:17:43 -0700 (PDT) Original-Received: from moritz-desktop (openvpn-cl-200-117.scc.kit.edu. [141.3.200.117]) by smtp.gmail.com with ESMTPSA id b77sm4050364wme.0.2016.06.20.15.17.41 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 20 Jun 2016 15:17:41 -0700 (PDT) In-Reply-To: Sean Middleditch's message of "Mon\, 20 Jun 2016 14\:46\:28 -0700 \(PDT\) \(26 minutes\, 8 seconds ago\)" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) X-Original-Sender: moritz.klammler@gmail.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com; spf=pass (google.com: domain of moritz.klammler@gmail.com designates 2a00:1450:4010:c04::230 as permitted sender) smtp.mailfrom=moritz.klammler@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:26353 Archived-At: Sean Middleditch writes: > Could/should this be resolved the same way we handle regex, e.g.=20 > glob_constants::POSIX, glob_constants::DOS, glob_constants::NATIVE, etc.? I think that this is a good way to handle this. It allows the application -- and therefore eventually the user -- to decide what their idea of "portable behavior" is. It is also open to potential future extensions such as a hypothetical ISO globing standard. > On Wednesday, June 8, 2016 at 5:47:19 AM UTC-7, Tony V E wrote: >> >> Do you want cross-platform behaviour or platform-native behaviour? >> >> "*.*" is not the same under dos/windows vs unix/mac/linux.=20 >> >> =E2=80=8ECross platform seems nice, but if a user tpes "*.*" into a cust= om Open=20 >> File dialog, I might want (as the user probably expects) per-platform=20 >> behaviour.=20 >> >> >> >> Sent from my BlackBerry portable Babbage Device >> *From: *Morwenn >> *Sent: *Wednesday, June 8, 2016 4:53 AM >> *To: *ISO C++ Standard - Future Proposals >> *Reply To: *std-pr...@isocpp.org >> *Subject: *[std-proposals] File globbing in the standard library >> >> The C++17 standard filesystem library would benefit from a generic file= =20 >> globbing utility, which is a really common operation when dealing with= =20 >> files. >> Here is a brief description of how I would envision it: >> >> - Add a glob dialect to the regular expression libraries (with=20 >> standard jokers, including **). >> - Add a glob function to path (or somewhere else) taking an std::rege= x. >> - Add overloads to glob for std::string, std::string_view, const char= *=20 >> that default to the newly introduced glob dialect. >> >> I guess that the string types mentioned above would use=20 >> std::filesystem::path::value_type for their value type. >> >> I believe that using std::regex allows to have a truly generic globbing= =20 >> interface, while defaulting to a regular glob dialect provides the=20 >> behaviour people expect by default for a glob function. >> >> Any thoughts about such a design? >> >> --=20 >> You received this message because you are subscribed to the Google Group= s=20 >> "ISO C++ Standard - Future Proposals" group. >> To unsubscribe from this group and stop receiving emails from it, send a= n=20 >> email to std-proposal...@isocpp.org . >> To post to this group, send email to std-pr...@isocpp.org . >> To view this discussion on the web visit=20 >> https://groups.google.com/a/isocpp.org/d/msgid/std-proposals/860ea5e8-d2= f7-46d1-b1e0-e5493195fa28%40isocpp.org=20 >> >> . >> >> --=20 OpenPGP: Public Key: http://openpgp.klammler.eu Fingerprint: 2732 DA32 C8D0 EEEC A081 BE9D CF6C 5166 F393 A9C0 --=20 You received this message because you are subscribed to the Google Groups "= ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp= ..org/d/msgid/std-proposals/87y45zcxob.fsf%40gmail.com. .