Re^3: Hash of Regex

[Anonymous Monk]

Why / how did this

my %dict = ( 'brown'      => 'yellow',
             () => 'int',
             () => 'float',
           );

become this??

my %dict = ( 'brown'      => 'yellow',
             'int' => 'float',
           );

[LanX]

For Perl => is just a comma, and empty lists () are ignored when flattening lists.

perl -e' @a=(1,2,(),(),3);print "@a"'
1 2 3

[almut]

Empty elements (lists) in a list collapse,  e.g. (1, (), 2, 3, (), (), 4) is the same as (1, 2, 3, 4).