Mercurial > pub > Impl
annotate Lib/IMPL/DOM/XMLReader.pm @ 358:248f95c1762a
added simple XML Sax parser
| author | sergey |
|---|---|
| date | Mon, 18 Nov 2013 01:25:35 +0400 |
| parents | 4ddb27ff4a0b |
| children | 010ceafd0c5a |
| rev | line source |
|---|---|
| 49 | 1 package IMPL::DOM::XMLReader; |
| 2 use strict; | |
| 3 use warnings; | |
| 4 | |
| 166 | 5 use parent qw(IMPL::Object IMPL::Object::Autofill); |
| 263 | 6 |
| 49 | 7 use IMPL::Class::Property; |
| 8 use XML::Parser; | |
| 263 | 9 |
| 10 use IMPL::require { | |
| 11 Schema => 'IMPL::DOM::Schema', # IMPL::DOM::Schema references IMPL::DOM::XML::Reader | |
| 12 Builder => 'IMPL::DOM::Navigator::Builder', | |
| 13 SimpleBuilder => 'IMPL::DOM::Navigator::SimpleBuilder' | |
| 14 }; | |
| 49 | 15 |
| 16 __PACKAGE__->PassThroughArgs; | |
| 17 | |
| 18 BEGIN { | |
| 19 public _direct property Navigator => prop_get | owner_set; | |
| 152 | 20 public _direct property SkipWhitespace => prop_get | owner_set; |
| 49 | 21 private _direct property _current => prop_all; |
| 22 private _direct property _text => prop_all; | |
| 23 private _direct property _textHistory => prop_all; | |
| 24 } | |
| 25 | |
| 26 sub Parse { | |
| 27 my ($this,$in) = @_; | |
| 28 | |
| 29 my $parser = new XML::Parser( | |
| 30 Handlers => { | |
| 31 Start => sub {shift; goto &OnStart($this,@_)}, | |
| 32 End => sub {shift; goto &OnEnd($this,@_)}, | |
| 33 Char => sub {shift; goto &OnChar($this,@_)} | |
| 34 } | |
| 35 ); | |
| 36 | |
| 37 $parser->parse($in); | |
| 38 } | |
| 39 | |
| 40 sub ParseFile { | |
| 41 my ($this,$in) = @_; | |
| 42 | |
| 43 my $parser = new XML::Parser( | |
| 44 Handlers => { | |
| 45 Start => sub {shift; unshift @_, $this; goto &_OnBegin;}, | |
| 46 End => sub {shift; unshift @_, $this; goto &_OnEnd;}, | |
| 47 Char => sub {shift; unshift @_, $this; goto &_OnChar;} | |
| 48 } | |
| 49 ); | |
| 50 | |
| 51 $parser->parsefile($in); | |
| 52 } | |
| 53 | |
| 54 sub _OnBegin { | |
| 55 my ($this,$element,%attrs) = @_; | |
| 56 | |
| 57 push @{$this->{$_textHistory}},$this->{$_text}; | |
| 58 $this->{$_text} = ""; | |
| 59 $this->{$_current} = $this->Navigator->NavigateCreate($element,%attrs); | |
| 60 } | |
| 61 | |
| 62 sub _OnEnd { | |
| 63 my ($this,$element) = @_; | |
| 152 | 64 $this->{$_current}->nodeValue($this->Navigator->inflateValue( $this->{$_text} ) ) if length $this->{$_text} and (not $this->{$SkipWhitespace} or $this->{$_text} =~ /\S/); |
| 49 | 65 $this->{$_text} = pop @{$this->{$_textHistory}}; |
| 66 $this->{$_current} = $this->Navigator->Back; | |
| 67 } | |
| 68 | |
| 69 sub _OnChar { | |
| 70 my ($this,$val) = @_; | |
| 71 $this->{$_text} .= $val; | |
| 72 } | |
| 73 | |
|
104
196bf443b5e1
DOM::Schema RC0 inflators support, validation and some other things,
wizard
parents:
103
diff
changeset
|
74 sub LoadDocument { |
| 194 | 75 my ($self,$file,$schema) = @_; |
| 76 | |
| 77 my $parser; | |
| 78 if ($schema) { | |
| 79 $schema = IMPL::DOM::Schema->LoadSchema($schema) if not ref $schema; | |
| 80 $parser = $self->new( | |
| 81 Navigator => IMPL::DOM::Navigator::Builder->new( | |
| 82 'IMPL::DOM::Document', | |
| 83 $schema | |
| 84 ) | |
| 85 ); | |
| 86 } else { | |
| 87 $parser = $self->new( | |
| 88 Navigator => IMPL::DOM::Navigator::SimpleBuilder->new() | |
| 89 ); | |
| 90 } | |
| 91 | |
| 92 $parser->ParseFile($file); | |
| 93 my $doc = $parser->Navigator->Document; | |
| 94 if ($schema) { | |
| 95 my @errors = $parser->Navigator->BuildErrors; | |
| 96 push @errors, $schema->Validate($doc); | |
| 97 die new IMPL::Exception("Loaded document doesn't match the schema", @errors) if @errors; | |
| 98 } | |
| 99 return $doc; | |
|
104
196bf443b5e1
DOM::Schema RC0 inflators support, validation and some other things,
wizard
parents:
103
diff
changeset
|
100 } |
|
196bf443b5e1
DOM::Schema RC0 inflators support, validation and some other things,
wizard
parents:
103
diff
changeset
|
101 |
| 49 | 102 1; |
| 103 | |
| 104 __END__ | |
| 105 | |
| 106 =pod | |
| 107 | |
| 108 =head1 SYNOPSIS | |
| 109 | |
| 110 my $reader = new IMPL::DOM::XMLReader(Navigator => $DomBuilder); | |
| 111 my $obj = $reader->parsefile("data.xml"); | |
| 112 | |
| 113 =head1 DESCRIPTION | |
| 114 | |
| 180 | 115 Простой класс, использующий навигатор для постороения документа. В зависимости от |
| 116 используемого навигатора может быть получен различный результат. | |
| 49 | 117 |
| 180 | 118 Навигатор должен поодерживать методы C<NavigateCreate> и C<Back> |
| 49 | 119 |
| 120 =head1 METHODS | |
| 121 | |
| 122 =over | |
| 123 | |
| 124 =item C<CTOR(Naviagtor => $builder)> | |
| 125 | |
| 180 | 126 Создает новый экземпляр парсера, с указанным навигатором для построения документа |
| 49 | 127 |
| 128 =item C<$obj->Parse($in)> | |
| 129 | |
| 180 | 130 Строит документ. На вход получает либо xml строку, либо HANDLE. |
| 49 | 131 |
| 132 =item C<$obj->ParseFile($fileName)> | |
| 133 | |
| 180 | 134 Строит документ из файла с именем C<$fileName>. |
| 49 | 135 |
| 136 =back | |
| 137 | |
| 138 =cut |