On 5/20/16 6:47 PM, Grisha Levit wrote:
> I would propose that the following behavior would be least surprising for
> assignments before command names:
>
> * iff |$ref| is a valid nameref for assignment, assigning/appending to
> |ref| modifies the target variable (for ksh93 compat)
> *
>
> the target variable is added to the export list if it was not there
> before (for ksh93 compat)
>
> *
>
> if |$ref| is a nameref but is not valid for assignment (or is not set)
>
> o |ref=x| puts |ref=x| in the env
> o |ref+=x| puts |ref=${ref}x| in the env (using the target’s value)
> * the nameref variable is added to the export list with the new value of
> its target
This sounds basically reasonable. I'll take a look at how it works out.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU [email protected] http://cnswww.cns.cwru.edu/~chet/
