annotate Lib/IMPL/DOM/Schema/Validator/Compare.pm @ 106:83e356614c1e

DOM Builder now is a navigator like SimpleBuilder PostToDOM transformation
author wizard
date Wed, 12 May 2010 17:52:12 +0400
parents 196bf443b5e1
children c6fb6964de4c
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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 base qw(IMPL::DOM::Schema::Validator);
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5
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6 use IMPL::Resources::Format qw(FormatMessage);
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7 use IMPL::Class::Property;
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8
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9 BEGIN {
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10 public property targetProperty => prop_all;
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11 public property op => prop_all;
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12 public property nodePath => prop_get | owner_set;
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13 public property optional => prop_all;
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14 private property _pathTranslated => prop_all;
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15 private property _targetNode => prop_all;
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16 public property message => prop_all;
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17 }
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18
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19 our %CTOR = (
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20 'IMPL::DOM::Schema::Validator' => sub {
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21 my %args = @_;
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22 $args{nodeName} ||= 'Compare';
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23 %args;
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24 }
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25 );
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26
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27 our %Ops = (
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28 '=' => \&_equals,
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29 'eq' => \&_equalsString,
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30 '!=' => \&_notEquals,
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31 'ne' => \&_notEqualsString,
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32 '=~' => \&_matchRx,
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33 '!~' => \&_notMatchRx,
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34 '<' => \&_less,
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35 '>' => \&_greater,
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36 'lt' => \&_lessString,
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37 'gt' => \&_greaterString
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38 );
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39
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40 my $rxOps = map qr/$_/, join( '|', keys %Ops );
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41
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42 sub CTOR {
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43 my ($this,%args) = @_;
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44
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45 $this->targetProperty($args{targetProperty} || 'nodeValue');
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46 $this->op( $Ops{ $args{op} || '=' } ) or die new IMPL::InvalidArgumentException("Invalid parameter value",'op',$args{op},$this->path);
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47 $this->nodePath($args{nodePath}) or die new IMPL::InvalidArgumentException("The argument is required", 'nodePath', $this->path);
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48 $this->message($args{message} || 'The value of %Node.path% %Source.op% %Value% (%Source.nodePath%)' );
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49 $this->optional($args{optional}) if $args{optional};
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50 }
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51
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52 sub TranslatePath {
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53 my ($this,$path) = @_;
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54
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55 $path ||= '';
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56
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57 my @selectQuery;
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58
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59 my $i = 0;
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60
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61 foreach my $chunk (split /\//,$path) {
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62 $chunk = 'document:*' if $i == 0 and not length $chunk;
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63 next if not length $chunk;
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64
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65 my $query;
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66 my ($axis,$filter) = ( $chunk =~ /^(?:(\w+):)?(.*)$/);
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67
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68 if ($filter =~ /^\w+|\*$/ ) {
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69 $query = $filter eq '*' ? undef : $filter;
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70 } elsif ( $filter =~ /^(\w+|\*)\s*((?:\[\s*\w+\s*(?:=|!=|=~|!~|eq|ne|lt|gt|)\s*["'](?:[\\'"]|\\[\\"'])*["']\])+)$/) {
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71 my ($nodeName,$filterArgs) = ($1,$2);
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72
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73 my @parsedFilters = map {
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74 my ($prop,$op,$value) = ($_ =~ /\s*(\w+)\s*(=|!=|=~|!~)\s*(["'](?:[\\'"]|\\[\\"'])*["'])/);
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75 $value =~ s/\\[\\'"]/$1/g;
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76 {
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77 prop => $prop,
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78 op => $Ops{$op},
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79 value => $value
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80 }
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81 } grep ( $_, split ( /[\]\[]+/,$filterArgs ) );
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82
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83 $query = sub {
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84 my ($node) = shift;
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85
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86 $node->nodeName eq $nodeName or return 0 if $nodeName ne '*';
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87 $_->{op}->(
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88 _resovleProperty($node,$_->{prop}),
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89 FormatMessage($_->{value},{
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90 Schema => $this->parentNode,
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91 Node => $this->_targetNode
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92 },\&_resovleProperty)
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93 ) or return 0 foreach @parsedFilters;
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94
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95 };
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96 } else {
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97 die new IMPL::Exception("Invalid query syntax",$path,$chunk);
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98 }
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99
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100 push @selectQuery, $axis ? { $axis => $query } : $query;
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101
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102 $i++;
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103 }
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104
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105 return \@selectQuery;
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106 }
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107
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108 sub Validate {
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109 my ($this,$node,$ctx) = @_;
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110
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111 my @result;
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112
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113 $this->_targetNode($node);
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114
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115 my $query = $this->_pathTranslated() || $this->_pathTranslated($this->TranslatePath($this->nodePath));
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116
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117 my ($foreignNode) = $node->selectPath($query);
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118
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119 my $Source = $ctx && $ctx->{Source} || $this->parentNode;
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120
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121 if ($foreignNode) {
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122 my $value = $this->nodeValue;
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123
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124 if ($value) {
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125 $value = FormatMessage($value, { Schema => $this->parentNode, Node => $this->_targetNode, ForeignNode => $foreignNode },\&_resovleProperty);
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126 } else {
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127 $value = $foreignNode->nodeValue;
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128 }
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129
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130 push @result, new IMPL::DOM::Schema::ValidationError(
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131 Node => $node,
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132 ForeignNode => $foreignNode,
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133 Value => $value,
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134 Source => $Source,
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135 Schema => $this->parentNode,
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136 Message => $this->message
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137 ) unless $this->op->(_resovleProperty($node,$this->targetProperty),$value);
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138 } elsif (not $this->optional) {
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139 push @result, new IMPL::DOM::Schema::ValidationError(
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140 Node => $node,
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141 Value => '',
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142 Source => $Source,
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143 Schema => $this->parentNode,
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144 Message => $this->message
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145 );
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146 }
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147
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148 $this->_targetNode(undef);
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149
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150 return @result;
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151 }
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152
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153 sub _resovleProperty {
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154 my ($node,$prop) = @_;
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155
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156 return $node->can($prop) ? $node->$prop() : $node->nodeProperty($prop);
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157 }
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158
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159 sub _matchRx {
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160 $_[0] =~ $_[1];
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161 }
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162
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163 sub _notMatchRx {
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164 $_[0] !~ $_[1];
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165 }
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166
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167 sub _equals {
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168 $_[0] == $_[1];
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169 }
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170
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171 sub _notEquals {
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172 $_[0] != $_[0];
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173 }
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174
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175 sub _equalsString {
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176 $_[0] eq $_[1];
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177 }
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178
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179 sub _notEqualsString {
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180 $_[0] ne $_[1];
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181 }
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182
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183 sub _less {
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184 $_[0] < $_[1];
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185 }
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186
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187 sub _greater {
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188 $_[0] > $_[1];
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189 }
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190
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191 sub _lessString {
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192 $_[0] lt $_[1];
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193 }
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194
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195 sub _greaterString {
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196 $_[0] gt $_[1];
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197 }
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198
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199 sub _lessEq {
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200 $_[0] <= $_[1];
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201 }
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202
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203 sub _greaterEq {
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204 $_[0] >= $_[1];
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205 }
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206
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207 1;
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208
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209 __END__
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210
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211 =pod
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212
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213 =head1 NAME
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214
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215 C<IMPL::DOM::Schema::Validator::Compare> - ограничение на содержимое текущего узла,
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216 сравнивая его со значением другого узла.
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217
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218 =head1 SYNOPSIS
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219
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220 Пример типа описания поля с проверочным полем
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221
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222 =begin code xml
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223
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224 <schema>
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225 <SimpleType type="retype_field">
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226 <Property name="linkedNode" message="Для узла %Node.nodeName% необходимо задать свойство %Source.name%"/>
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227 <Compare op="eq" nodePath="sibling:*[nodeName eq '%Node.linkedNode%']"/>
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228 </SimpleType>
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229 </schema>
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230
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231 =begin code xml
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232
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233 =head1 DESCRIPTION
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234
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235 Позволяет сравнивать значение текущего узла со значением другого узла.
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236
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237 =cut