Is there a perl idiom which is the functional equivalent of calling a subroutine from within the sub
- by Thomas L Holaday
Perl allows ...
$a = "fee";
$result = 1 + f($a) ; # invokes f with the arugment $a
but disallows, or rather doesn't do what I want ...
s/((fee)|(fie)|(foe)|(foo))/f($1)/ ; # does not invoke f with the argument $1
The desired-end-result is a way to effect a substitution geared off what the regex matched.
Do I have to write ...
sub lala {
my $haha = shift;
return $haha . $haha;
}
my $a = "the giant says foe" ;
$a =~ m/((fee)|(fie)|(foe)|(foo))/;
my $result = lala($1);
$a =~ s/$1/$result/;
print "$a\n";
... ?
