Re: ''"$@" expansion

[Chet Ramey]

On 5/12/16 7:37 PM, Grisha Levit wrote:

> Thanks for the pointer. Looking at that interpretation
> (http://austingroupbugs.net/view.php?id=888), I noticed that it includes
> one case that bash is not handling correctly:
> 
>     If there are no positional parameters, the expansion of |@| shall
>     generate zero fields […] however, if the expansion is embedded within a
>     word which contains one or more other parts that expand to a quoted
>     null string, these null string(s) shall still produce an empty field […]
> 
> The provided example is:
> 
> |set -- printf '[%s]\n' foo ''"$@" *[foo] []* |
> 
> (Bash just prints |[foo]|).

Thanks for the report.  This will be fixed in bash-4.4.

> The attached exp9.sub and exp.right could be used for testing all the
> examples from the interpretation if desired. I removed the test cases that
> included undefined behavior.

Thanks, I'll take a look at adding it to the test suite.

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