Re^2: Scalar followed by parenthetical...

in reply to Re: Scalar followed by parenthetical...
in thread Scalar followed by parenthetical...

...maybe it's a side-effect of how those specially named variables are vivified. Oh, and strike that "maybe" :)

Comment on Re^2: Scalar followed by parenthetical...

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Re^3: Scalar followed by parenthetical... by tobyink (Canon) on May 19, 2013 at 17:27 UTC
It is. The way the punctuation variables are implemented, if `$X` exists (assuming `X` is a punctuation character), then `@X` and `%X` also exist. There are one or two CPAN modules that make use of the magic global `%_`. MooseX::Params is an example. With a bit of digging around in perlvar you can figure out plenty of spare global variables. I use them occasionally in local code (`%\` is one of my favourites), but have so far resisted the urge to publish anything using them. Global variables don't usually make for very good reusable code. `package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name`	[reply] [d/l] [select]

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Re^3: Scalar followed by parenthetical...
by tobyink (Canon) on May 19, 2013 at 17:27 UTC

It is. The way the punctuation variables are implemented, if $X exists (assuming X is a punctuation character), then @X and %X also exist.

There are one or two CPAN modules that make use of the magic global %_. MooseX::Params is an example.

With a bit of digging around in perlvar you can figure out plenty of spare global variables. I use them occasionally in local code (%\ is one of my favourites), but have so far resisted the urge to publish anything using them. Global variables don't usually make for very good reusable code.

package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name

[reply]
[d/l]
[select]

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