Path: csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!news.glorb.com!usenet.stanford.edu!not-for-mail From: Chet Ramey Newsgroups: gnu.bash.bug Subject: Re: minor language RFE(s) Date: Thu, 8 Oct 2015 11:44:17 -0400 Organization: ITS, Case Western Reserve University Lines: 31 Approved: bug-bash@gnu.org Message-ID: References: <5615ACEF.4040804@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 1444319096 20231 208.118.235.17 (8 Oct 2015 15:44:56 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 10.11; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 In-Reply-To: <5615ACEF.4040804@tlinx.org> X-Junkmail-Whitelist: YES (by domain whitelist at mpv1.tis.cwru.edu) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.4.x-2.6.x [generic] X-Received-From: 129.22.105.36 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:11590 On 10/7/15 7:38 PM, Linda Walsh wrote: > I was thinking ... lets say we had 1 or 2 abbreviation > keywords, at least 1 being "int=declare -i", > and ease-of-use "my=declare" > > that could then allow the "declare" of the 'for' iterator > as local, in-line. > > i.e. instead of predeclaring them w/'declare -i' or 'declare' > one could write: > > for((int i=0; i<10; ++i)); do : done > > or 2) > > for int i in {1..10}; do : done > for my i in {a..z}; do : done These change the syntax of the shell in incompatible ways. The arithetic `for' command takes arithmetic expressions, not shell commands, and the `for' command takes a name (identifier), not a shell command. Aside from any syntactic sugar (`int', `my'), these are not consistent with how the shell grammar is formed, and this isn't a good enough reason to change the grammar that dramatically. -- ``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/