On Thu, Jun 22, 2017 at 1:51 AM, Todd Chester <toddandma...@zoho.com> wrote:

> You want named parameters.
>>     sub MAIN(:$fixed-string, :$extended-regex, ...) {
>>       # $fixed-string and $extended-regex are Bools here,
>>       # True if the corresponding option specified
>>     }
>> You should recognize this as being similar to named parameters work for
>> normal Perl 6 functions, but MAIN exposes them to the command line like
>> GNUish long options.
> What does the ":" do?  and does it give you back the
> value associated with it, if there is one?

I guess that means you did not recognize colon-pair syntax for named

https://docs.perl6.org/language/terms#Pair see at the end for their use as
named parameters.

Since I assume I'm going to have to read that link for someone on the list


are all colon-pairs. When used as parameters, they indicate named (as
opposed to positional) parameters.

The first form allows you to associate any variable name with the parameter
name, optionally with a type. The second form is always a String (and any
of the bracketing String forms can be used, e.g. :foo<<bar>> --- but *not*
:foo"bar"; that would need to use the first form). The final three are
always Bools; the last one takes the parameter name from the variable name.

brandon s allbery kf8nh                               sine nomine associates
allber...@gmail.com                                  ballb...@sinenomine.net
unix, openafs, kerberos, infrastructure, xmonad        http://sinenomine.net

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