use strict;
use Data::Dumper;
sub lpcarray_to_array{
    my ($larray)=@_;
    my @result=();
    my $re = $larray;
    $re =~ s/((\([[{])|([]}]\))|.)/${[')','']}[!$3]\Q$1\E${['(','']}[!$2]/gs;
    $re = join'|',map quotemeta,eval{$larray=~/$re/};
    die $@ if $@;
    while( $larray=~/(\(\{($re)\}\))|(\(\[($re)\]\))|("([^"]*)")|(\d+)/g ){
        if( $1 ){
            push @result,[lpcarray_to_array($2)];
        }elsif( $3 ){
            push @result,{lpcarray_to_array($4)};
        }elsif( $5 ){
            push @result,$6;
        }else{
            push @result,$7;
        }
    }
    return @result;
}
print Dumper lpcarray_to_array qq(({ 1, 2, "three", 0, ({ "internal", "array", 0, }) "end", }));
print Dumper lpcarray_to_array qq(([ "key1": "value", "key2": ({ "value", "array", }) ]));