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