/usr/share/perl5/Catmandu/Fix/lookup.pm is in libcatmandu-perl 1.0700-1.
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 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | package Catmandu::Fix::lookup;
use Catmandu::Sane;
our $VERSION = '1.07';
use Catmandu::Importer::CSV;
use Moo;
use namespace::clean;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Base';
has path => (fix_arg => 1);
has file => (fix_arg => 1);
has default => (fix_opt => 1);
has delete => (fix_opt => 1);
has csv_args => (fix_opt => 'collect');
has dictionary => (is => 'lazy', init_arg => undef);
sub _build_dictionary {
my ($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) {
$perl
.= "else {"
. "${val_var} = "
. $fixer->emit_value($default) . ";" . "}";
}
$perl;
}
);
}
);
}
1;
__END__
=pod
=head1 NAME
Catmandu::Fix::lookup - change the value of a HASH key or ARRAY index by
looking up its value in a dictionary
=head1 SYNOPSIS
# dictionary.csv
# id,planet
# 1,sun
# 2,earth
# 3,moon
# values found in the dictionary.csv will be replaced
# {foo => {bar => 2}}
lookup(foo.bar, dictionary.csv)
# {foo => {bar => 'earth'}}
# values not found will be kept
# {foo => {bar => 232}}
lookup(foo.bar, dictionary.csv)
# {foo => {bar => 232}}
# in case you have a different seperator
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
|