The original error you quoted was about use of Nil. I couldn't
reproduce this by assigning Nil to a variable, turns out that's
because such an assignment is specified to set the variable to the
default value of the type of the variable. my $x = Nil gives (Any), my
Str $y = Nil gives (Str), and only my Nil $z = Nil actually gives Nil.
In your more complete code snippet it looks like the $Line ~~ match
fails, leaving $0 with the value Nil, leading to the error you first
posted.
I think Patrick is right that using braces to control interpolation is
a good idea.
On 30 April 2018 at 21:21, ToddAndMargo <toddandma...@zoho.com> wrote:
>
>> On Sun, Apr 29, 2018 at 10:20:48PM -0700, ToddAndMargo wrote:
>>>
>>> On 04/29/2018 10:12 PM, ToddAndMargo wrote:
>>>>
>>>> On 04/29/2018 09:32 PM, Andrew Kirkpatrick wrote:
>>>>>
>>>>> There is not enough context to answer or even reproduce the problem -
>>>>> how are the variables declared and what values do they have just prior
>>>>> to this line?
>>>
>>>
>>> Some simpler examples:
>>>
>>> $ perl6 -e 'my $x="abcde<br>"; say $x;'
>>> abcde<br>
>>>
>>> $ perl6 -e 'my $x="abcde"; my $y="$x" ~ "<br>"; say $y;'
>>> abcde<br>
>>>
>>> $ perl6 -e 'my $x="abcde"; my $y="$x<br>"; say $y;'
>>> Type Str does not support associative indexing.
>>> in block <unit> at -e line 1
>>>
>>> $ perl6 -e 'my $x="abcde"; my $y="{$x}<br>"; say $y;'
>>> abcde<br>
>>>
>>> $ perl6 -e 'my $x="abcde"; my $y="$x\<br\>"; say $y;'
>>> abcde<br>
>>>
>>>
>>> So when is "<" and ">" a letter and when is it a redirect?
>>
>>
>
>
> On 04/30/2018 12:09 AM, Patrick Spek wrote:
>> It seems like in the one case it throws an error, it's because `<>` are
>> being
>> used to index a hash. Or at least tried to. In Perl 6, you can access a
>> Hash's
>> elements using `%foo<bar>`, which will access the index `bar` on the Hash
>> `%foo`.
>>
>> The other cases are explicitly not referring to a variable, or have
>> delimiters
>> in place to make it known to the compiler that you're not trying to access
>> a
>> Hash index.
>>
>> The error you're getting is "Type Str does not support associative
>> indexing.",
>> which is correct, though perhaps a little unexpected for you. `$x`
>> contains a
>> Str, not a Hash, but the `<br>` still try to retrieve the index `br` from
>> it.
>> The solution is to use any of the other options you're using, with my
>> personal
>> preference going out to `{$x}<br>`.
>>
>
>
> Hi Patrick,
>
> Now it makes sense. It was trying to resolve a hash.
>
> Thank you!
>
> -T
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Computers are like air conditioners.
> They malfunction when you open windows
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
