use strict;
use warnings;

{
    my $level = 0;
    sub reset_list_debug { $level = 0 }

    sub custom_list_debug (&@) {
        my $code = shift;
        print "==" x $level, $level ? "> " : '', join(q( ), map($code-
+>($_), @_)), "\n";
        $level++;
        return @_;
    }

    sub list_debug {
        custom_list_debug { "$_" } @_;
    }    
}

my @letters = 
    list_debug map  { lc $_ }
    list_debug grep { /[AEIOU]/ }
    list_debug map  { uc $_ }
    list_debug 'a'..'z';

reset_list_debug();


my @letters2 = 
    custom_list_debug { qq("$_") } map  { lc $_ }
    custom_list_debug { qq([$_]) } grep { /[AEIOU]/ }
    custom_list_debug { qq('$_') } map  { uc $_ }
    custom_list_debug { qq( $_ ) } 'a'..'z';

reset_list_debug();

[download]
perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

In reply to Re: How can i debug compound map/grep statements just using print? by tobyink
in thread How can i debug compound map/grep statements just using print? by karlgoethebier

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