/usr/share/perl5/Catmandu/Fix/lookup.pm is in libcatmandu-perl 0.9206-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | package Catmandu::Fix::lookup;
use Catmandu::Sane;
use Catmandu::Importer::CSV;
use Moo;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Base';
has path => (fix_arg => 1);
has file => (fix_arg => 1);
has default => (fix_opt => 1);
has delete => (fix_opt => 1);
has csv_args => (fix_opt => 'collect');
has dictionary => (is => 'lazy', init_arg => undef);
sub _build_dictionary {
my ($self) = @_;
Catmandu::Importer::CSV->new(
%{$self->csv_args},
file => $self->file,
header => 0,
fields => ['key', 'val'],
)->reduce({}, sub {
my ($dict, $pair) = @_;
$dict->{$pair->{key}} = $pair->{val};
$dict;
});
}
sub emit {
my ($self, $fixer) = @_;
my $path = $fixer->split_path($self->path);
my $key = pop @$path;
my $dict_var = $fixer->capture($self->dictionary);
my $delete = $self->delete;
my $default = $self->default;
$fixer->emit_walk_path($fixer->var, $path, sub {
my $var = shift;
$fixer->emit_get_key($var, $key, sub {
my $val_var = shift;
my $val_index = shift;
my $dict_val_var = $fixer->generate_var;
my $perl = "if (is_value(${val_var}) && defined(my ${dict_val_var} = ${dict_var}->{${val_var}})) {" .
"${val_var} = ${dict_val_var};" .
"}";
if ($delete) {
$perl .= "else {";
if (defined $val_index) { # wildcard: only delete the value where the lookup failed
$perl .= "splice(\@{${var}}, ${val_index}--, 1);";
} else {
$perl .= $fixer->emit_delete_key($var, $key);
}
$perl .= "}";
} elsif (defined $default) {
$perl .= "else {" .
$fixer->emit_set_key($var, $key, $fixer->emit_value($default)) .
"}";
}
$perl;
});
});
}
=head1 NAME
Catmandu::Fix::lookup - change the value of a HASH key or ARRAY index by looking up it's value in a dictionary
=head1 SYNOPSIS
lookup(foo.bar, dictionary.csv)
lookup(foo.bar, dictionary.csv, sep_char: |)
# delete value if the lookup fails:
lookup(foo.bar, dictionary.csv, delete: 1)
# use a default value if the lookup fails:
lookup(foo.bar, dictionary.csv, default: 'default value')
=head1 SEE ALSO
L<Catmandu::Fix>
=cut
1;
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