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Re: Global variable modification by nameref chain


From: Chet Ramey
Subject: Re: Global variable modification by nameref chain
Date: Fri, 6 May 2016 09:17:59 -0400
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:45.0) Gecko/20100101 Thunderbird/45.0

On 4/27/16 9:05 AM, Grisha Levit wrote:
> Is the behavior below expected? In the presence of a local $var, the
> /global/ $var can be modified by assigning a value to a local nameref that
> points to a global nameref that points to $var. However, the local nameref
> expands to the /local/ value of $var.

Yes, that's how it works.  The nameref resolution search doesn't re-start
back at the original context.  It's like a symbolic link -- it continues
at the same context as the resolved nameref.

I don't have any plans to change this before bash-4.4.

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    address@hidden    http://cnswww.cns.cwru.edu/~chet/



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