Path: csiph.com!xmission!news.glorb.com!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: language inconsistency(wart) & RFE Date: Mon, 19 Oct 2015 09:50:57 -0400 Lines: 25 Approved: bug-bash@gnu.org Message-ID: References: <5621A1DD.90205@tlinx.org> Reply-To: chet.ramey@case.edu NNTP-Posting-Host: lists.gnu.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: usenet.stanford.edu 1445262673 14914 208.118.235.17 (19 Oct 2015 13:51:13 GMT) X-Complaints-To: action@cs.stanford.edu Cc: chet.ramey@case.edu To: Linda Walsh , bug-bash Envelope-to: bug-bash@gnu.org User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 In-Reply-To: <5621A1DD.90205@tlinx.org> X-Junkmail-Status: score=10/60, host=mpv6.cwru.edu X-Junkmail-Whitelist: YES (by domain whitelist at mpv2.tis.cwru.edu) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 129.22.105.37 X-BeenThere: bug-bash@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Bug reports for the GNU Bourne Again SHell List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com gnu.bash.bug:11706 On 10/16/15 9:18 PM, Linda Walsh wrote: > Ok, thinking this from a different way. > > shopt -s implicit_vars_local > or > shopt -s localize_func_implicit_vars.... whatever... > > Right now, in a function, you *can* use local in a function > to make a local var. Thing is, both 'declare' and 'typeset' also > make a *local* var in a function, unless the "-g" switch is used. > > I.e. All standard, overt ways (local declare typeset) of creating > a var in a function all result in it being local, BUT, (and I think this is > an ugly wart), any *implicit vars* without local, or the misleading declare > or typeset, become global. All variables are created at the global scope unless explicitly designated as local with local/declare/typeset. Simple and straightforward. (Dynamic scoping does change that a little, as has been covered ad nauseum.) -- ``The lyf so short, the craft so long to lerne.'' - Chaucer ``Ars longa, vita brevis'' - Hippocrates Chet Ramey, ITS, CWRU chet@case.edu http://cnswww.cns.cwru.edu/~chet/