I know how you feel… > On Feb 17, 2016, at 7:02 PM, Greg London <[email protected]> wrote: > > > > This is going to take some getting used to. > > > > On Wed, February 17, 2016 3:33 pm, Morse, Richard E.,MGH wrote: >> Hi! No, list context is more common. >> >> >> In particular, it isnâ?Tt the comma operator. Itâ?Ts (I think) the >> parenthesis. >> >> `(123, 456)` creates a list of two elements. Lists no longer >> automatically flatten (i.e., (1, (2, 3), 4) is only three elements long). >> If there is a space after a function call, itâ?Ts assumed to be a list >> operator, not a function, so the parameters are interpreted in list >> context; this means that (123, 456) creates a single list object which >> gets passed to your function. >> >> Ricky >> >> >>> On Feb 17, 2016, at 4:26 PM, Greg London <[email protected]> wrote: >>> >>> >>> >>> So perl6 thinks it is an expression, >>> With some kind of weird "comma" operator, >>> Which returns a single thingy of some kind, >>> That gets passed as a single argument to the function? >>> >>> >>> What is the comma operator doing >>> And what is the return thingy of the expression? >>> >>> >>> In perl5, this would have been at most list context of 123 and 455, >>> which would have returned multiple items in a list, and would be visible >>> in A perl 5 sub as $_[0] and $_[1]. >>> >>> >>> Is list context gone in perl 6? >>> >>> >>> >>> Greg >>> >>> >>> >>> >>> On Wed, February 17, 2016 11:04 am, Bill Ricker wrote: >>> >>>> That's an ambiguous parse for 1 arg vs 2 arg form, are the parents a >>>> function call or an expression. Space disambiguates it: f( a, a2) is >>>> function, f (a, a2) is an expression whose result is passed to the >>>> function. >>>> >>>> On Wed, Feb 17, 2016 at 11:43 AM, Greg London <[email protected]> >>>> wrote: >>>> >>>> >>>> >>>>> >>>>> Is perl6 whitespace sensitive? >>>>> Or is this a bug? >>>>> >>>>> >>>>> >>>>> I have a multi() for 1 and 2 artuments >>>>> But a 2 arg call ends up getting into the wrong sub >>>>> Apparently because there is a space between the sub name and the >>>>> Opening parenthesis? >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> multi mysub($arg1) { say "mysub(one): $arg1"; } >>>>> >>>>> >>>>> multi mysub($arg1, $arg2) { say "mysub(two): '$arg1' then '$arg2'"; >>>>> } >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> mysub(555); mysub(123, 456); mysub(999); mysub (123, 456); # a >>>>> space between sub and parenthesis >>>>> >>>>> output: >>>>> >>>>> >>>>> >>>>> mysub(one): 555 >>>>> mysub(two): '123' then '456' >>>>> mysub(one): 999 >>>>> mysub(one): 123 456 <== whoops! >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> Boston-pm mailing list >>>>> [email protected] >>>>> http://mail.pm.org/mailman/listinfo/boston-pm >>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> -- >>>> Bill Ricker >>>> [email protected] https://www.linkedin.com/in/n1vux >>>> >>>> >>> >>> >>> -- >>> >>> >>> >>> >>> _______________________________________________ >>> Boston-pm mailing list >>> [email protected] >>> http://mail.pm.org/mailman/listinfo/boston-pm >>> >> >> >> >> The information in this e-mail is intended only for the person to whom it >> is addressed. If you believe this e-mail was sent to you in error and the >> e-mail contains patient information, please contact the Partners >> Compliance HelpLine at >> http://www.partners.org/complianceline . If the e-mail was sent to you in >> error but does not contain patient information, please contact the sender >> and properly dispose of the e-mail. >> > > > -- > >
_______________________________________________ Boston-pm mailing list [email protected] http://mail.pm.org/mailman/listinfo/boston-pm
