[Swift-devel] New built-in system, request for comments

[Tim Armstrong]

I'm curious if there's a difference in Swift/K between how input mappers
work and how function outputs work.  Ie. could you have an equivalent
function system_map() like

file folder[];
folder = system_map("find foo -type f");


On Fri, Apr 4, 2014 at 5:47 PM, Mihael Hategan <hategan at mcs.anl.gov> wrote:

> I think that from a language design perspective there two important
> questions to ask:
>
> 1. Can you reasonably achieve the same with existing swift features?
> 2. Where else would system() be useful?
>
> Mihael
>
> On Fri, 2014-04-04 at 12:08 -0500, Yadu Nand wrote:
> > Hi,
> >
> > I have just added a new builtin "system" to trunk. It takes a string,
> > which is executed in the shell
> > by java and the results are returned as an array. This is done to make
> > mappings easier, for example,
> > you can map an entire folder "foo" using the following :
> >
> > file folder[ ] < array_mapper; files = system ("find foo -type f") >;
> >
> > If the execution of the string provided fails, the logger would report
> > the the exitcode and stderr to
> > the swift stdout.
> >
> > Thanks,
> > Yadu Nand B
> > _______________________________________________
> > Swift-devel mailing list
> > Swift-devel at ci.uchicago.edu
> > https://lists.ci.uchicago.edu/cgi-bin/mailman/listinfo/swift-devel
>
>
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