Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > gnu.bash.bug > #11706 > unrolled thread

Re: language inconsistency(wart) & RFE

Back to article view | Back to gnu.bash.bug

This discussion starts older than the indexed window; earlier articles aren't shown. The article labeled Started by below is the oldest one visible, not the original post.

Contents

  Re: language inconsistency(wart) & RFE Chet Ramey <chet.ramey@case.edu> - 2015-10-19 09:50 -0400

#11706 — Re: language inconsistency(wart) & RFE

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/

[toc] | [standalone]

Back to top | Article view | gnu.bash.bug

csiph-web