A NOTE has been added to this issue. 
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http://austingroupbugs.net/view.php?id=767 
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Reported By:                dwheeler
Assigned To:                ajosey
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Project:                    1003.1(2008)/Issue 7
Issue ID:                   767
Category:                   Shell and Utilities
Type:                       Enhancement Request
Severity:                   Objection
Priority:                   normal
Status:                     Under Review
Name:                       David A. Wheeler 
Organization:                
User Reference:              
Section:                    XCU 2.14 (local) 
Page Number:                2374 
Line Number:                75650 
Interp Status:              --- 
Final Accepted Text:         
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Date Submitted:             2013-10-11 02:02 UTC
Last Modified:              2017-05-23 14:14 UTC
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Summary:                    Add built-in "local"
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Relationships       ID      Summary
----------------------------------------------------------------------
related to          0000771 Expose alternate shell function usage t...
related to          0000465 is the list of special built-ins exhaus...
related to          0001025 set description contains counterproduct...
====================================================================== 

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 (0003717) chet_ramey (reporter) - 2017-05-23 14:14
 http://austingroupbugs.net/view.php?id=767#c3717 
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Re: http://austingroupbugs.net/view.php?id=767#c3706 
> "local" would not be a regular command... it's a keyword that establishes
a
> context for the identifier like '{' and '}', or '(' and ')', or possibly
a
> special built-in. 
You could make it a special builtin, if you wanted to give it those
properties, but there's no reason to make it a reserved word, and no shell
does so.

> That's how I'm thinking of it, so any arguments get
> evaluated only in the local context of the function, not inherit stuff
like
> with establishing a subshell using '(' ')'. 
So, again, you want the `initialize unset' semantics and for `local
x="$x"'
to be implemented as `local x; x="$x"'.

The `inherit stuff' doesn't hold water any other way, since functions 
always share variables and values with their caller. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2013-10-11 02:02 dwheeler       New Issue                                    
2013-10-11 02:02 dwheeler       Status                   New => Under Review 
2013-10-11 02:02 dwheeler       Assigned To               => ajosey          
2013-10-11 02:02 dwheeler       Name                      => David A. Wheeler
2013-10-11 02:02 dwheeler       Section                   => XCU 2.14 (local)
2013-10-11 02:02 dwheeler       Page Number               => 2374            
2013-10-11 02:02 dwheeler       Line Number               => 75650           
2013-10-11 08:31 geoffclare     Relationship added       related to 0000465  
2013-10-15 22:47 dwheeler       Note Added: 0001912                          
2013-10-17 05:52 ranjit         Note Added: 0001924                          
2013-10-20 05:00 shware_systems Note Added: 0001937                          
2013-11-14 16:08 geoffclare     Relationship added       related to 0000771  
2015-04-23 23:12 emaste         Issue Monitored: emaste                      
2016-07-05 09:35 joerg          Note Added: 0003285                          
2016-12-01 16:51 eblake         Relationship added       related to 0001025  
2017-05-19 21:39 mirabilos      Note Added: 0003699                          
2017-05-19 22:12 stephane       Note Added: 0003701                          
2017-05-22 11:19 joerg          Note Added: 0003702                          
2017-05-22 11:20 joerg          Note Edited: 0003702                         
2017-05-22 11:20 joerg          Note Edited: 0003702                         
2017-05-22 11:21 joerg          Note Edited: 0003702                         
2017-05-22 19:38 stephane       Note Added: 0003703                          
2017-05-22 23:06 shware_systems Note Added: 0003704                          
2017-05-23 03:41 kre            Note Added: 0003705                          
2017-05-23 10:47 shware_systems Note Added: 0003706                          
2017-05-23 11:07 shware_systems Note Edited: 0003706                         
2017-05-23 12:06 stephane       Note Added: 0003707                          
2017-05-23 13:08 joerg          Note Added: 0003708                          
2017-05-23 13:18 joerg          Note Added: 0003709                          
2017-05-23 13:19 joerg          Note Edited: 0003709                         
2017-05-23 13:41 chet_ramey     Note Added: 0003710                          
2017-05-23 13:47 joerg          Note Added: 0003711                          
2017-05-23 13:47 chet_ramey     Note Added: 0003712                          
2017-05-23 13:51 joerg          Note Added: 0003713                          
2017-05-23 14:00 chet_ramey     Note Added: 0003714                          
2017-05-23 14:05 chet_ramey     Note Added: 0003715                          
2017-05-23 14:11 stephane       Note Added: 0003716                          
2017-05-23 14:14 chet_ramey     Note Added: 0003717                          
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