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
126
127
128
|
package Catmandu::Fix::Bind::with;
use Catmandu::Sane;
our $VERSION = '1.2024';
use Moo;
use Clone ();
use Catmandu::Util;
use namespace::clean;
use Catmandu::Fix::Has;
with 'Catmandu::Fix::Bind', 'Catmandu::Fix::Bind::Group';
has path => (fix_opt => 1);
sub zero {
my ($self) = @_;
[];
}
sub unit {
my ($self, $data) = @_;
defined $self->path ? Catmandu::Util::data_at($self->path, $data) : $data;
}
sub bind {
my ($self, $mvar, $code) = @_;
if (Catmandu::Util::is_hash_ref($mvar)) {
my $copy = Clone::clone($mvar);
$copy = $code->($copy);
if (ref($copy) eq 'reject') {
#map { delete $mvar->{$_} } (keys %$mvar);
%$mvar = ();
}
else {
%$mvar = %$copy;
}
return $mvar;
}
elsif (Catmandu::Util::is_array_ref($mvar)) {
my $idx = 0;
for my $item (@$mvar) {
$item = $code->($item);
if (ref($item) eq 'reject') {
splice(@$mvar, $idx, 1);
}
$idx++;
}
return $mvar;
}
else {
return $self->zero;
}
}
sub reject {
my ($self, $var) = @_;
return bless $var, 'reject' if ref($var);
return bless \$var, 'reject';
}
1;
__END__
=pod
=head1 NAME
Catmandu::Fix::Bind::with - a binder that computes Fix-es in the context of a path
=head1 SYNOPSIS
# Input data
data:
- name: patrick
- name: nicolas
# Fix
do with(path:data)
if all_match(name,nicolas)
reject()
end
end
# will produce
data:
- name: patrick
=head1 DESCRIPTION
The C<with> bind allows to run fixes in the scope of a path.
Given a deep nested data structure :
my:
deep:
field:
name: James Brown
these two fixes are equal:
add_field(my.deep.field.style, funk)
do with(path:my.deep.field)
add_field(style,funk)
end
=head1 CONFIGURATION
=head2 path
The path to a list in the data.
=head1 SEE ALSO
L<Catmandu::Fix::Bind>
=cut
|
