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- use warnings;
- my %config;
- sub add_config {
- my ($prefix, $c) = @_;
- foreach my $key (keys $c) {
- my $val = $c->{$key};
- if (ref($val) eq 'HASH') {
- add_config($key . '.', $val);
- }
- unless (ref($val)) {
- $config{'@' . $prefix . $key . '@'} = $val;
- }
- }
- }
- add_config('', $CONFIG);
- my $regex = join '|', map {quotemeta} keys %config;
- for (<>) {
- s/($regex)/${config{$1}}/g;
- print;
- }
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