Path: csiph.com!3.us.feeder.erje.net!feeder.erje.net!news.linkpendium.com!news.linkpendium.com!panix!usenet.stanford.edu!not-for-mail From: Andreas Kusalananda =?iso-8859-1?B?S+Ro5HJp?= Newsgroups: gnu.bash.bug Subject: Re: Backslash missing in brace expansion Date: Sun, 8 Dec 2019 11:40:16 +0100 Lines: 29 Approved: bug-bash@gnu.org Message-ID: References: <20191205201157.cd481936f76d95bbdfabc73c@schrader-schulte.de> <662e2328-f331-c554-afcf-fd3819f6beab@case.edu> <20191206055304.076d6115afa3a4f2a6a21c34@schrader-schulte.de> <5b5064a8-7175-42e7-1eb5-6374dee6c11e@redhat.com> <21761e28-c496-ff67-d7b7-628c9325085f@iki.fi> <9dd3a388-39b1-c059-de99-813f1e411764@case.edu> <20191208110003.bd50732fb2879caf0c1ebbe1@schrader-schulte.de> <20191208104016.GA79602@pooh.my.domain> NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Trace: usenet.stanford.edu 1575801635 8861 209.51.188.17 (8 Dec 2019 10:40:35 GMT) X-Complaints-To: action@cs.stanford.edu Cc: bug-bash@gnu.org To: Martin Schulte Envelope-to: bug-bash@gnu.org Mail-Followup-To: Martin Schulte , bug-bash@gnu.org Content-Disposition: inline In-Reply-To: <20191208110003.bd50732fb2879caf0c1ebbe1@schrader-schulte.de> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 158.174.61.227 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: <20191208104016.GA79602@pooh.my.domain> X-Mailman-Original-References: <20191205201157.cd481936f76d95bbdfabc73c@schrader-schulte.de> <662e2328-f331-c554-afcf-fd3819f6beab@case.edu> <20191206055304.076d6115afa3a4f2a6a21c34@schrader-schulte.de> <5b5064a8-7175-42e7-1eb5-6374dee6c11e@redhat.com> <21761e28-c496-ff67-d7b7-628c9325085f@iki.fi> <9dd3a388-39b1-c059-de99-813f1e411764@case.edu> <20191208110003.bd50732fb2879caf0c1ebbe1@schrader-schulte.de> Xref: csiph.com gnu.bash.bug:15709 On Sun, Dec 08, 2019 at 11:00:03AM +0100, Martin Schulte wrote: > Hello, > > thanks a lot for all the answers! > > I would like to suppose (Ilkka already argued in this direction) that in > future versions of bash {x..C} should expand to x y z A B C. > > Best regards, > > Martin Another idea would be to treat {x..C} just like {1..C} would be treated, i.e as not a brace expansion at all but just as the literal string {x..C}. The current brace expansion impelementation in bash requires both points of a range to be "of the same type". This currently means "both must be numbers, or both must be characters", but that second part could be made stronger: "both must be characters with the same case". It's obviously far too late to do anything about this at this point in time. -- Andreas (Kusalananda) Kähäri SciLifeLab, NBIS, ICM Uppsala University, Sweden