Re: <<>> question

[ToddAndMargo]

On Wed, Oct 4, 2017 at 1:29 PM, ToddAndMargo <toddandma...@zoho.com <mailto:toddandma...@zoho.com>> wrote:

    On 10/02/2017 01:18 PM, ToddAndMargo wrote:

        Hi All,

        I am writing up a keeper note on <<>> and such.  This example
        puzzles me.  Why the space?


        Example of <<>> (double quote and allow insertion of variables
        into strings):


             $ perl6 -e 'my $x="abc"; my $y=<<xyz{$x}def>>; say "\$x=$x
        \$y=$y";'
             $x=abc $y=xyz abc def



        Many thanks,
        -T



    Hi Guys,

    I am trying to document for myself what the difference is
    between "" and <<>>.

    Maybe I should rephrase the  question.  Why are these
    two different?  Why the spaces when using <<>>?

    $ perl6 -e 'my $x="abc"; my $y=<<xyz{$x}def>>; say "\$x=$x \$y=$y";'
    $x=abc $y=xyz abc def

    $ perl6 -e 'my $x="abc"; my $y="xyz{$x}def"; say "\$x=$x \$y=$y";'
    $x=abc $y=xyzabcdef


    -T

On 10/04/2017 11:45 AM, Andy Bach wrote:

Why the spaces when using <<>>?

in REPL
 > my $x="abc"; my $y="xyz{$x}def"; say "\$x=$x \$y=$y"
$x=abc $y=xyzabcdef
 > $y.WHAT
(Str)
 > $x.WHAT
(Str)
 > my $z=<<xyz{$x}def>>;
(xyz abc def)
 > $z.WHAT
(List)

<<>> makes a list, the { } make a closure, so you've got 3 things in the list; "xyz", the value of $x ("abc"), and "def"

 > $z=<<xyz$xdef>>;
===SORRY!=== Error while compiling:
Variable '$xdef' is not declared
------> $z=<<xyz⏏$xdef>>;

 > $z=<<xyz$x def>>;
(xyz abc def)

Love that "what" command.

I think maybe I don't understand how <<>> is used in a
and how <<>> differs from a ""