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1 | package HTML::String::Value; |
2 | |
3 | use strictures 1; |
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4 | use UNIVERSAL::ref; |
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5 | use Safe::Isa; |
6 | use Data::Munge; |
7 | |
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8 | use overload |
9 | '""' => 'escaped_string', |
10 | '.' => 'dot', |
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11 | |
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12 | fallback => 1, |
13 | ; |
14 | |
15 | sub new { |
16 | my ($class, @raw_parts) = @_; |
17 | |
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18 | my @parts = map { |
19 | if (ref($_) eq 'ARRAY') { |
20 | $_ |
21 | } elsif ($_->$_isa(__PACKAGE__)) { |
22 | @{$_->{parts}} |
23 | } else { |
24 | [ $_, 0 ] |
25 | } |
26 | } @raw_parts; |
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27 | |
28 | my $self = bless { parts => \@parts }, $class; |
29 | |
30 | return $self; |
31 | } |
32 | |
33 | sub escaped_string { |
34 | my $self = shift; |
35 | |
36 | return join '', map +( |
37 | $_->[1] |
38 | ? byval { |
39 | s/&/&/g; |
40 | s/</</g; |
41 | s/>/>/g; |
42 | s/"/"/g; |
43 | } $_->[0] |
44 | : $_->[0] |
45 | ), @{$self->{parts}}; |
46 | } |
47 | |
48 | sub unescaped_string { |
49 | my $self = shift; |
50 | |
51 | return join '', map $_->[0], @{$self->{parts}}; |
52 | } |
53 | |
54 | sub dot { |
55 | my ($self, $str, $prefix) = @_; |
56 | |
57 | return $self unless $str; |
58 | |
59 | my @parts = @{$self->{parts}}; |
60 | |
61 | my @new_parts = ( |
62 | $str->$_isa(__PACKAGE__) |
63 | ? @{$str->{parts}} |
64 | : [ $str, 1 ] |
65 | ); |
66 | |
67 | if ( $prefix ) { |
68 | unshift @parts, @new_parts; |
69 | } else { |
70 | push @parts, @new_parts; |
71 | } |
72 | |
73 | return ref($self)->new(@parts); |
74 | } |
75 | |
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76 | sub ref { '' } |
77 | |
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78 | 1; |