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49
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1 package IMPL::DOM::Schema;
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2 use strict;
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3 use warnings;
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4
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5 require IMPL::DOM::Schema::ComplexNode;
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6 require IMPL::DOM::Schema::ComplexType;
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7 require IMPL::DOM::Schema::SimpleNode;
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8 require IMPL::DOM::Schema::SimpleType;
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9 require IMPL::DOM::Schema::Node;
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10 require IMPL::DOM::Schema::AnyNode;
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11 require IMPL::DOM::Schema::NodeList;
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12 require IMPL::DOM::Schema::NodeSet;
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13 require IMPL::DOM::Schema::Property;
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14 require IMPL::DOM::Schema::SwitchNode;
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101
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15 require IMPL::DOM::Schema::Validator;
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16 require IMPL::DOM::Navigator::Builder;
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17 require IMPL::DOM::XMLReader;
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18
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19 use base qw(IMPL::DOM::Document);
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20 use IMPL::Class::Property;
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21 use IMPL::Class::Property::Direct;
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101
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22 use File::Spec;
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23
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24 our %CTOR = (
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25 'IMPL::DOM::Document' => sub { nodeName => 'schema' }
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26 );
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27
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28 BEGIN {
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29 private _direct property _TypesMap => prop_all;
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101
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30 public _direct property baseDir => prop_all;
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31 public _direct property BaseSchemas => prop_get | owner_set;
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32 }
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33
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34 sub resolveType {
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35 $_[0]->{$_TypesMap}->{$_[1]};
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36 }
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37
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102
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38 sub CTOR {
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39 my ($this,%args) = @_;
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40
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41 $this->{$baseDir} = ($args{baseDir} || '.');
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42 }
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43
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49
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44 sub Create {
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45 my ($this,$nodeName,$class,$refArgs) = @_;
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46
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100
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47 die new IMPL::Exception('Invalid node class') unless $class->isa('IMPL::DOM::Node');
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49
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48
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101
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49 if ($class->isa('IMPL::DOM::Schema::Validator')) {
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50 $class = "IMPL::DOM::Schema::Validator::$nodeName";
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51 unless (eval {$class->can('new')}) {
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52 eval "require $class; 1;";
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53 my $e = $@;
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54 die new IMPL::Exception("Invalid validator",$class,$e) if $e;
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55 }
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56 }
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57
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58 return $this->SUPER::Create($nodeName,$class,$refArgs);
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49
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59 }
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60
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61 sub Process {
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62 my ($this) = @_;
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63
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101
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64 # process instructions
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65 $this->Include($_) foreach map $_->nodeProperty('source'), $this->selectNodes('Include');
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66
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67 # build types map
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68 $this->{$_TypesMap} = { map { $_->type, $_ } $this->selectNodes(sub { $_[0]->nodeName eq 'ComplexType' || $_[0]->nodeName eq 'SimpleType' } ) };
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69 }
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70
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101
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71 sub Include {
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72 my ($this,$file) = @_;
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73
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102
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74 my $schema = $this->LoadSchema(File::Spec->catfile($this->baseDir, $file));
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101
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75
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76 $this->appendRange( $schema->childNodes );
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77 }
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78
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79 sub LoadSchema {
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102
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80 my ($this,$file) = @_;
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81
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82 $file = File::Spec->rel2abs($file);
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101
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83
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84 my $class = ref $this || $this;
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85
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86 my $reader = new IMPL::DOM::XMLReader(
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87 Navigator => new IMPL::DOM::Navigator::Builder(
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88 $class,
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89 $class->MetaSchema
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90 )
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91 );
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92
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102
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93 $reader->ParseFile($file);
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101
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94
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95 my $schema = $reader->Navigator->Document;
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96
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97 my ($vol,$dir) = File::Spec->splitpath($file);
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98
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99 $schema->baseDir($dir);
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100
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101 my @errors = $class->MetaSchema->Validate($schema);
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102
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103 die new IMPL::Exception("Schema is invalid",$file,map( $_->Message, @errors ) ) if @errors;
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104
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105 $schema->Process;
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106
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107 return $schema;
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108 }
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109
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110 sub Validate {
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111 my ($this,$node) = @_;
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112
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113 if ( my ($schemaNode) = $this->selectNodes(sub { $_[0]->name eq $node->nodeName })) {
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114 $schemaNode->Validate($node);
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115 } else {
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116 return new IMPL::DOM::Schema::ValidationError(Message=> "A specified document doesn't match the schema");
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117 }
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118 }
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119
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120 my $schema;
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121
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122 sub MetaSchema {
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123
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124 return $schema if $schema;
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125
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126 $schema = new IMPL::DOM::Schema;
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127
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128 $schema->appendRange(
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129 IMPL::DOM::Schema::ComplexNode->new(name => 'schema')->appendRange(
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130 IMPL::DOM::Schema::NodeSet->new()->appendRange(
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131 IMPL::DOM::Schema::Node->new(name => 'ComplexNode', type => 'ComplexNode', minOccur => 0, maxOccur=>'unbounded'),
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132 IMPL::DOM::Schema::Node->new(name => 'ComplexType', type => 'ComplexType', minOccur => 0, maxOccur=>'unbounded'),
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133 IMPL::DOM::Schema::Node->new(name => 'SimpleNode', type => 'SimpleNode', minOccur => 0, maxOccur=>'unbounded'),
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134 IMPL::DOM::Schema::Node->new(name => 'SimpleType', type => 'SimpleType', minOccur => 0, maxOccur=>'unbounded'),
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135 IMPL::DOM::Schema::SimpleNode->new(name => 'Node', minOccur => 0, maxOccur=>'unbounded'),
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136 IMPL::DOM::Schema::SimpleNode->new(name => 'Include', minOccur => 0, maxOccur=>'unbounded')->appendRange(
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137 IMPL::DOM::Schema::Property->new(name => 'source')
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138 )
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139 ),
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140 ),
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141 IMPL::DOM::Schema::ComplexType->new(type => 'NodeSet', nativeType => 'IMPL::DOM::Schema::NodeSet')->appendRange(
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142 IMPL::DOM::Schema::NodeSet->new()->appendRange(
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143 IMPL::DOM::Schema::Node->new(name => 'ComplexNode', type => 'ComplexNode', minOccur => 0, maxOccur=>'unbounded'),
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144 IMPL::DOM::Schema::Node->new(name => 'SimpleNode', type => 'SimpleNode', minOccur => 0, maxOccur=>'unbounded'),
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145 IMPL::DOM::Schema::SimpleNode->new(name => 'Node', minOccur => 0, maxOccur=>'unbounded'),
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146 IMPL::DOM::Schema::SwitchNode->new(minOccur => 0, maxOccur => 1)->appendRange(
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147 IMPL::DOM::Schema::SimpleNode->new(name => 'AnyNode'),
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148 IMPL::DOM::Schema::Node->new(name => 'SwitchNode',type => 'SwitchNode')
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149 )
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150 )
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151 ),
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152 IMPL::DOM::Schema::ComplexType->new(type => 'SwitchNode', nativeType => 'IMPL::DOM::Schema::SwitchNode')->appendRange(
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153 IMPL::DOM::Schema::NodeSet->new()->appendRange(
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154 IMPL::DOM::Schema::Node->new(name => 'ComplexNode', type=>'ComplexNode', minOccur => 0, maxOccur=>'unbounded'),
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155 IMPL::DOM::Schema::Node->new(name => 'SimpleNode', type=>'SimpleNode', minOccur => 0, maxOccur=>'unbounded'),
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156 IMPL::DOM::Schema::SimpleNode->new(name => 'Node', minOccur => 0, maxOccur=>'unbounded'),
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157 )
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158 ),
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159 IMPL::DOM::Schema::ComplexType->new(type => 'NodeList', nativeType => 'IMPL::DOM::Schema::NodeList')->appendRange(
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160 IMPL::DOM::Schema::NodeSet->new()->appendRange(
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161 IMPL::DOM::Schema::Node->new(name => 'ComplexNode', type => 'ComplexNode', minOccur => 0, maxOccur=>'unbounded'),
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162 IMPL::DOM::Schema::Node->new(name => 'SimpleNode', type => 'SimpleNode', minOccur => 0, maxOccur=>'unbounded'),
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163 IMPL::DOM::Schema::Node->new(name => 'SwitchNode',type => 'SwitchNode', minOccur => 0, maxOccur=>'unbounded'),
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164 IMPL::DOM::Schema::SimpleNode->new(name => 'Node', minOccur => 0, maxOccur=>'unbounded'),
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165 IMPL::DOM::Schema::SimpleNode->new(name => 'AnyNode', minOccur => 0, maxOccur=>'unbounded'),
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166 )
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167 ),
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168 IMPL::DOM::Schema::ComplexType->new(type => 'ComplexType', nativeType => 'IMPL::DOM::Schema::ComplexType')->appendRange(
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169 IMPL::DOM::Schema::NodeList->new()->appendRange(
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170 IMPL::DOM::Schema::SwitchNode->new()->appendRange(
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171 IMPL::DOM::Schema::Node->new(name => 'NodeSet', type => 'NodeSet'),
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172 IMPL::DOM::Schema::Node->new(name => 'NodeList',type => 'NodeList'),
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173 ),
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102
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174 IMPL::DOM::Schema::Node->new(name => 'Property', type=>'Property', maxOccur=>'unbounded', minOccur=>0),
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175 IMPL::DOM::Schema::AnyNode->new(maxOccur => 'unbounded', minOccur => 0, type=>'Validator')
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176 ),
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177 new IMPL::DOM::Schema::Property(name => 'type')
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178 ),
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179 IMPL::DOM::Schema::ComplexType->new(type => 'ComplexNode', nativeType => 'IMPL::DOM::Schema::ComplexNode')->appendRange(
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180 IMPL::DOM::Schema::NodeList->new()->appendRange(
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181 IMPL::DOM::Schema::SwitchNode->new()->appendRange(
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182 IMPL::DOM::Schema::Node->new(name => 'NodeSet', type => 'NodeSet'),
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183 IMPL::DOM::Schema::Node->new(name => 'NodeList',type => 'NodeList'),
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184 ),
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102
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185 IMPL::DOM::Schema::Node->new(name => 'Property', type=>'Property', maxOccur=>'unbounded', minOccur=>0),
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186 IMPL::DOM::Schema::AnyNode->new(maxOccur => 'unbounded', minOccur => 0, type=>'Validator')
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187 ),
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188 new IMPL::DOM::Schema::Property(name => 'name')
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189 ),
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190 IMPL::DOM::Schema::ComplexType->new(type => 'SimpleType', nativeType => 'IMPL::DOM::Schema::SimpleType')->appendRange(
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102
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191 IMPL::DOM::Schema::NodeList->new()->appendRange(
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192 IMPL::DOM::Schema::Node->new(name => 'Property', type=>'Property', maxOccur=>'unbounded', minOccur=>0),
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193 IMPL::DOM::Schema::AnyNode->new(maxOccur => 'unbounded', minOccur => 0, type=>'Validator')
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194 ),
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195 new IMPL::DOM::Schema::Property(name => 'type')
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196 ),
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197 IMPL::DOM::Schema::ComplexType->new(type => 'SimpleNode', nativeType => 'IMPL::DOM::Schema::SimpleNode')->appendRange(
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102
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198 IMPL::DOM::Schema::NodeList->new()->appendRange(
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199 IMPL::DOM::Schema::Node->new(name => 'Property', type=>'Property', maxOccur=>'unbounded', minOccur=>0),
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200 IMPL::DOM::Schema::AnyNode->new(maxOccur => 'unbounded', minOccur => 0, type=>'Validator')
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201 ),
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202 new IMPL::DOM::Schema::Property(name => 'name')
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203 ),
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204 IMPL::DOM::Schema::ComplexType->new(type => 'Validator', nativeType => 'IMPL::DOM::Schema::Validator')->appendRange(
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205 IMPL::DOM::Schema::NodeList->new()->appendRange(
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206 IMPL::DOM::Schema::AnyNode->new(maxOccur => 'unbounded', minOccur => 0)
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207 )
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102
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208 ),
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209 IMPL::DOM::Schema::ComplexType->new(type => 'Property', nativeType => 'IMPL::DOM::Schema::Property' )->appendRange(
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210 IMPL::DOM::Schema::NodeList->new()->appendRange(
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211 IMPL::DOM::Schema::AnyNode->new(maxOccur => 'unbounded', minOccur => 0)
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212 ),
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213 IMPL::DOM::Schema::Property->new(name => 'name')
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214 )
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215 );
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216
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217 $schema->Process;
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218
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219 return $schema;
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220 }
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221
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222 1;
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223
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224 __END__
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225
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226 =pod
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227
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98
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228 =head1 NAME
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229
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230 C<IMPL::DOM::Schema> - Схема документа.
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231
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232 =head1 DESCRIPTION
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233
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234 C<use base qw(IMPL::DOM::Document)>
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235
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236 DOM схема - это документ, состоящий из определенных узлов, описывающая структуру
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237 других документов.
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238
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239 =head1 METHODS
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240
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241 =over
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242
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243 =item C<< $obj->Process() >>
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244
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245 Обновляет таблицу типов из содержимого.
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246
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247 =item C<< $obj->ResolveType($typeName) >>
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248
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249 Возвращает схему типа c именем C<$typeName>.
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250
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251 =back
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252
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253 =head1 META SCHEMA
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254
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100
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255 Схема для описания схемы, эта схема используется для постороения других схем, выглядит приблизительно так
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256
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257 =begin code xml
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258
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49
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259 <schema>
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260 <ComplexNode name="schema">
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261 <NodeSet>
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262 <Node minOcuur="0" maxOccur="unbounded" name="ComplexNode" type="ComplexNode"/>
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263 <Node minOcuur="0" maxOccur="unbounded" name="SimpleNode" type="SimpleNode"/>
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264 <Node minOcuur="0" maxOccur="unbounded" name="ComplexType" type="ComplexType"/>
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265 <Node minOcuur="0" maxOccur="unbounded" name="SimpleType" type="SimpleType"/>
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266 <SimpleNode minOcuur="0" maxOccur="unbounded" name="Node"/>
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267 <SimpleNode minOcuur="0" maxOccur="unbounded" name="Include"/>
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268 </NodeSet>
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269 </ComplexNode>
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270
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271 <ComplexType type="NodeContainer">
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272 <NodeSet>
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273 <Node minOcuur="0" maxOccur="unbounded" name="ComplexNode" type="ComplexNode"/>
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274 <Node minOcuur="0" maxOccur="unbounded" name="SimpleNode" type="SimpleNode"/>
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275 <SimpleNode minOcuur="0" maxOccur="unbounded" name="Node"/>
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276 </NodeSet>
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277 </ComplexType>
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278
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279 <ComplexType type="ComplexType">
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280 <NodeList>
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281 <Node name="NodeSet" type="NodeContainer" minOcuur=0/>
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282 <Node name="NodeList" type="NodeContainer" minOccur=0/>
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283 <AnyNode minOccur="0" maxOccur="unbounded" type="Validator"/>
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284 </NodeList>
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285 </ComplexType>
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286
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287 <ComplexType type="ComplexNode">
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288 <NodeList>
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289 <Node name="NodeSet" type="NodeContainer" minOcuur=0/>
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290 <Node name="NodeList" type="NodeContainer" minOccur=0/>
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291 <AnyNode minOccur="0" maxOccur="unbounded" type="Validator"/>
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292 </NodeList>
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293 </ComplexType>
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294
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295 <ComplexType type="SimpleNode">
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296 <NodeSet>
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297 <AnyNode minOccur=0 maxOccur="unbounded" type="Validator"/>
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298 </NodeSet>
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299 </ComplexType>
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300
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301 <ComplexType type="SimpleType">
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302 <NodeSet>
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303 <AnyNode minOccur=0 maxOccur="unbounded" type="Validator"/>
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304 </NodeSet>
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305 </ComplexType>
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306
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307 <ComplexType type="Validator">
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308 <NodeSet>
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309 <AnyNode minOccur=0 maxOccur="unbounded"/>
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310 </NodeSet>
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311 </ComplexType>
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312
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313 </schema>
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314
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98
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315 =end code xml
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316
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49
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317 =cut
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