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1 | package HTML::Zoom::Parser::BuiltIn; |
2 | |
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3 | use strictures 1; |
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4 | use base qw(HTML::Zoom::SubObject); |
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5 | |
6 | sub html_to_events { |
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7 | my ($self, $text) = @_; |
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8 | my @events; |
9 | _hacky_tag_parser($text => sub { push @events, $_[0] }); |
10 | return \@events; |
11 | } |
12 | |
13 | sub html_to_stream { |
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14 | my ($self, $text) = @_; |
15 | return $self->_zconfig->stream_utils |
16 | ->stream_from_array(@{$self->html_to_events($text)}); |
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17 | } |
18 | |
19 | sub _hacky_tag_parser { |
20 | my ($text, $handler) = @_; |
21 | while ( |
22 | $text =~ m{ |
23 | ( |
24 | (?:[^<]*) < (?: |
25 | ( / )? ( [^/!<>\s"'=]+ ) |
26 | ( (?:"[^"]*"|'[^']*'|[^"'<>])+? )? |
27 | | |
28 | (!-- .*? -- | ![^\-] .*? ) |
29 | ) (\s*/\s*)? > |
30 | ) |
31 | ([^<]*) |
32 | }sxg |
33 | ) { |
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34 | my ($whole, $is_close, $tag_name, $attributes, $is_special, |
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35 | $in_place_close, $content) |
36 | = ($1, $2, $3, $4, $5, $6, $7, $8); |
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37 | if ($is_special) { |
38 | $handler->({ type => 'SPECIAL', raw => $whole }); |
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39 | } else { |
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40 | $tag_name =~ tr/A-Z/a-z/; |
41 | if ($is_close) { |
42 | $handler->({ type => 'CLOSE', name => $tag_name, raw => $whole }); |
43 | } else { |
44 | $attributes = '' if !defined($attributes) or $attributes =~ /^ +$/; |
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45 | $handler->({ |
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46 | type => 'OPEN', |
47 | name => $tag_name, |
48 | is_in_place_close => $in_place_close, |
49 | _hacky_attribute_parser($attributes), |
50 | raw_attrs => $attributes||'', |
51 | raw => $whole, |
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52 | }); |
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53 | if ($in_place_close) { |
54 | $handler->({ |
55 | type => 'CLOSE', name => $tag_name, raw => '', |
56 | is_in_place_close => 1 |
57 | }); |
58 | } |
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59 | } |
60 | } |
61 | if (length $content) { |
62 | $handler->({ type => 'TEXT', raw => $content }); |
63 | } |
64 | } |
65 | } |
66 | |
67 | sub _hacky_attribute_parser { |
68 | my ($attr_text) = @_; |
69 | my (%attrs, @attr_names); |
70 | while ( |
71 | $attr_text =~ m{ |
72 | ([^\s\=\"\']+)(\s*=\s*(?:(")(.*?)"|(')(.*?)'|([^'"\s=]+)['"]*))? |
73 | }sgx |
74 | ) { |
75 | my $key = $1; |
76 | my $test = $2; |
77 | my $val = ( $3 ? $4 : ( $5 ? $6 : $7 )); |
78 | my $lckey = lc($key); |
79 | if ($test) { |
80 | $attrs{$lckey} = _simple_unescape($val); |
81 | } else { |
82 | $attrs{$lckey} = $lckey; |
83 | } |
84 | push(@attr_names, $lckey); |
85 | } |
86 | (attrs => \%attrs, attr_names => \@attr_names); |
87 | } |
88 | |
89 | sub _simple_unescape { |
90 | my $str = shift; |
91 | $str =~ s/"/"/g; |
92 | $str =~ s/</</g; |
93 | $str =~ s/>/>/g; |
94 | $str =~ s/&/&/g; |
95 | $str; |
96 | } |
97 | |
98 | sub _simple_escape { |
99 | my $str = shift; |
100 | $str =~ s/&/&/g; |
101 | $str =~ s/"/"/g; |
102 | $str =~ s/</</g; |
103 | $str =~ s/>/>/g; |
104 | $str; |
105 | } |
106 | |
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107 | sub html_escape { _simple_escape($_[1]) } |
108 | |
109 | sub html_unescape { _simple_unescape($_[1]) } |
110 | |
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111 | 1; |