On Fri, Jan 9, 2009 at 9:49 AM, jerry gay <jerry....@gmail.com> wrote:
> On Fri, Jan 9, 2009 at 02:31, via RT Richard Hainsworth > <perl6-bugs-follo...@perl.org> wrote: > > # New Ticket Created by Richard Hainsworth > > # Please include the string: [perl #62116] > > # in the subject line of all future correspondence about this issue. > > # <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=62116 > > > > > > > Array element does not interpolate it does in perl5 > > (Is this a design choice or a rakudo bug?) > > > > $ perl6 > > > my @x=(1,2,3); say "2nd is @x[1]" > > 2nd is @x[1] > > > > $ zoid > > --[ This is the Zoidberg shell ]--[ Version 0.96 ]-- > > ### This is a development version, consider it unstable > > $ @x=(1,2,3);print "2nd is $x[1]\n"; > > 2nd is 2 > > > > Array element interpolation is not listed as something common not > > working in Rakudo. > > > this is a design choice. in order to interpolate this, use a closure > inside the string. > my @x = 1, 2, 3; say "2nd is {...@x[1]}"; # 2nd is 2 Er ... that may be a temporary rakudo design choice, but S02 says: Bare scalar variables always interpolate in double-quotish strings. Bare array, hash, and subroutine variables may I<never> be interpolated. However, any scalar, array, hash or subroutine variable may start an interpolation if it is followed by a sequence of one or more bracketed dereferencers: that is, any of: =over 4 =item 1. An array subscript =item 2. A hash subscript =item 3. A set of parentheses indicating a function call =item 4. Any of 1 through 3 in their B<dot> form =item 5. A method call that includes argument parentheses =item 6. A sequence of one or more unparenthesized method call, followed by any of 1 through 5 =back In other words, this is legal: "Val = $a.ord.fmt('%x')\n" and is equivalent to "Val = { $a.ord.fmt('%x') }\n" So, it would seem that my @x = 1, 2, 3; say "2nd is @x[1]"; # 2nd is 2 is perfectly valid perl 6. -Scott -- Jonathan Scott Duff perlpi...@gmail.com
