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407
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1 package IMPL::DOM::Schema::Validator::Compare;
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2 use strict;
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3
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4 use IMPL::Const qw(:prop);
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5 use IMPL::declare {
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6 require => {
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7 Label => 'IMPL::DOM::Schema::Label',
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8 ValidationError => 'IMPL::DOM::Schema::ValidationError'
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9 },
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10 base => [
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11 'IMPL::DOM::Schema::Validator' => sub {
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12 my %args = @_;
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13 $args{nodeName} ||= 'Compare';
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14 delete @args{qw(targetProperty op nodePath optional message)};
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15 %args;
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16 }
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17 ],
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18 props => [
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19 targetProperty => PROP_RW,
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20 op => PROP_RW,
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21 nodePath => PROP_RW,
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22 optional => PROP_RW,
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23 _pathTranslated => PROP_RW,
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24 _targetNode => PROP_RW,
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25 _schemaNode => PROP_RW,
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26 message => PROP_RW
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27 ]
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28 };
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29 use IMPL::Resources::Format qw(FormatMessage);
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30
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31 our %Ops = (
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32 '=' => \&_equals,
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33 'eq' => \&_equalsString,
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34 '!=' => \&_notEquals,
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35 'ne' => \&_notEqualsString,
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36 '=~' => \&_matchRx,
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37 '!~' => \&_notMatchRx,
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38 '<' => \&_less,
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39 '>' => \&_greater,
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40 'lt' => \&_lessString,
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41 'gt' => \&_greaterString
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42 );
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43
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44 my $rxOps = map qr/$_/, join( '|', keys %Ops );
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45
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46 sub CTOR {
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47 my ($this,%args) = @_;
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48
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49 $this->targetProperty($args{targetProperty} || 'nodeValue');
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50 $this->op( $Ops{ $args{op} || '=' } ) or die new IMPL::InvalidArgumentException("Invalid parameter value",'op',$args{op},$this->path);
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51 $this->nodePath($args{nodePath}) or die new IMPL::InvalidArgumentException("The argument is required", 'nodePath', $this->path);
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52 $this->message($args{message} || 'The value of %node.path% %schemaNode.op% %value% (%schemaNode.nodePath%)' );
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53 $this->optional($args{optional}) if $args{optional};
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54 }
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55
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56 sub TranslatePath {
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57 my ($this,$path) = @_;
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58
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59 $path ||= '';
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60
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61 my @selectQuery;
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62
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63 my $i = 0;
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64
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65 foreach my $chunk (split /\//,$path) {
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66 $chunk = 'document:*' if $i == 0 and not length $chunk;
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67 next if not length $chunk;
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68
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69 my $query;
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70 my ($axis,$filter) = ( $chunk =~ /^(?:(\w+):)?(.*)$/);
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71
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72 if ($filter =~ /^\w+|\*$/ ) {
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73 $query = $filter eq '*' ? undef : $filter;
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74 } elsif ( $filter =~ /^(\w+|\*)\s*((?:\[\s*\w+\s*(?:=|!=|=~|!~|eq|ne|lt|gt)\s*["'](?:[^\\'"]|\\[\\"'])*["']\])+)$/) {
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75 my ($nodeName,$filterArgs) = ($1,$2);
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76
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77
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78 my @parsedFilters = map {
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79 my ($prop,$op,$value) = ($_ =~ /\s*(\w+)\s*(=|!=|=~|!~|eq|ne|lt|gt)\s*(?:["']((?:[^\\'"]|\\[\\"'])*)["'])/);
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80
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81 $value =~ s/\\[\\'"]/$1/g;
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82 {
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83 prop => $prop,
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84 op => $Ops{$op},
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85 value => $value
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86 }
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87 } grep ( $_, split ( /[\]\[]+/,$filterArgs ) );
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88
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89 $query = sub {
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90 my ($node) = shift;
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91
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92 $node->nodeName eq $nodeName or return 0 if $nodeName ne '*';
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93 $_->{op}->(
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94 _resovleProperty($node,$_->{prop}),
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95 FormatMessage($_->{value},{
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96 Schema => $this->parentNode,
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97 Node => $this->_targetNode,
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98 schema => $this->parentNode,
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99 schemaType => $this->parentNode,
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100 node => $this->_targetNode,
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101 source => $this->_schemaNode,
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102 schemaNode => $this->_schemaNode
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103 },\&_resovleProperty)
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104 ) or return 0 foreach @parsedFilters;
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105 return 1;
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106 };
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107 } else {
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108 die new IMPL::Exception("Invalid query syntax",$path,$chunk);
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109 }
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110
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111 push @selectQuery, $axis ? { $axis => $query } : $query;
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112
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113 $i++;
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114 }
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115
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116 return \@selectQuery;
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117 }
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118
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119 sub Validate {
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120 my ($this,$node,$ctx) = @_;
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121
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122 my @result;
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123
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124 my $schemaNode = $ctx->{schemaNode};
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125 my $schemaType = $ctx->{schemaType};
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126
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127 $this->_schemaNode($schemaNode);
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128
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129 $this->_targetNode($node);
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130
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131 my $query = $this->_pathTranslated() || $this->_pathTranslated($this->TranslatePath($this->nodePath));
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132
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133 my ($foreignNode) = $node->selectNodes(@$query);
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134
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135
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136
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137 if ($foreignNode) {
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138 my $value = $this->nodeValue;
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139
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140 if ($value) {
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141 $value = FormatMessage($value, { Schema => $this->parentNode, Node => $this->_targetNode, ForeignNode => $foreignNode },\&_resovleProperty);
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142 } else {
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143 $value = $foreignNode->nodeValue;
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144 }
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145
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146 push @result, ValidationError->new(
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147 node => $node,
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148 foreignNode => $foreignNode,
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149 value => $value,
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150 schemaNode => $schemaNode,
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151 schemaType => $schemaType,
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152 message => $this->_MakeLabel($this->message)
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153 ) unless $this->op->(_resovleProperty($node,$this->targetProperty),$value);
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154 } elsif (not $this->optional) {
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155 push @result, ValidationError->new(
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156 node => $node,
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157 value => '',
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158 schemaNode => $schemaNode,
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159 schemaType => $schemaType,
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160 message => $this->_MakeLabel( $this->message )
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161 );
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162 }
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163
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164 $this->_targetNode(undef);
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165 $this->_schemaNode(undef);
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166
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167 return @result;
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168 }
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169
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170 sub _resovleProperty {
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171 my ($node,$prop) = @_;
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172
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173 return $node->can($prop) ? $node->$prop() : $node->nodeProperty($prop);
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174 }
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175
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176 sub _matchRx {
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177 $_[0] =~ $_[1];
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178 }
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179
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180 sub _notMatchRx {
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181 $_[0] !~ $_[1];
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182 }
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183
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184 sub _equals {
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185 $_[0] == $_[1];
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186 }
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187
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188 sub _notEquals {
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189 $_[0] != $_[0];
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190 }
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191
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192 sub _equalsString {
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193 $_[0] eq $_[1];
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194 }
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195
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196 sub _notEqualsString {
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197 $_[0] ne $_[1];
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198 }
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199
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200 sub _less {
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201 $_[0] < $_[1];
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202 }
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203
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204 sub _greater {
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205 $_[0] > $_[1];
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206 }
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207
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208 sub _lessString {
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209 $_[0] lt $_[1];
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210 }
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211
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212 sub _greaterString {
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213 $_[0] gt $_[1];
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214 }
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215
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216 sub _lessEq {
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217 $_[0] <= $_[1];
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218 }
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219
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220 sub _greaterEq {
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221 $_[0] >= $_[1];
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222 }
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223
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224 sub _MakeLabel {
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225 my ($this,$label) = @_;
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226
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227 if ($label =~ /^ID:(\w+)$/) {
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228 return Label->new($this->document->stringMap, $1);
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229 } else {
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230 return $label;
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231 }
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232 }
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233
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234 1;
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235
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236 __END__
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237
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238 =pod
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239
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240 =head1 NAME
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241
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242 C<IMPL::DOM::Schema::Validator::Compare> - ограничение на содержимое текущего узла,
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243 сравнивая его со значением другого узла.
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244
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245 =head1 SYNOPSIS
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246
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247 Пример типа описания поля с проверочным полем
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248
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249 =begin code xml
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250
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251 <schema>
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252 <SimpleType type="retype_field">
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253 <Property name="linkedNode" message="Для узла %node.nodeName% необходимо задать свойство %schemaNode.name%"/>
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254 <Compare op="eq" nodePath="sibling:*[nodeName eq '%node.linkedNode%']"/>
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255 </SimpleType>
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256 </schema>
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257
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258 =begin code xml
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259
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260 =head1 DESCRIPTION
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261
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262 Позволяет сравнивать значение текущего узла со значением другого узла.
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263
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264 =cut
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