annotate Lib/IMPL/DOM/Node.pm @ 394:2c14f66efa08

minor changes
author cin
date Tue, 18 Feb 2014 18:17:20 +0400
parents 648dfaf642e0
children f23fcb19d3c1
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1 package IMPL::DOM::Node;
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2 use strict;
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3 use warnings;
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4
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5 use Scalar::Util qw(weaken);
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6
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7 use IMPL::lang;
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8 use IMPL::Object::List;
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9
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10 use IMPL::Exception();
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11 use IMPL::Const qw(:prop);
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12 use IMPL::declare {
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13 require => {
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14 PropertyInfo => '-IMPL::Class::PropertyInfo'
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15 },
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16 base => [
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17 'IMPL::Object' => undef
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18 ],
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19 props => [
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20 nodeName => PROP_RO | PROP_DIRECT,
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21 document => PROP_RO | PROP_DIRECT,
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22 isComplex => { get => \&_getIsComplex },
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23 nodeValue => PROP_RW | PROP_DIRECT,
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24 childNodes => { get => \&_getChildNodes, isList => 1, direct => 1 },
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25 parentNode => PROP_RO | PROP_DIRECT,
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26 schemaNode => PROP_RO | PROP_DIRECT,
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27 schemaType => PROP_RO | PROP_DIRECT,
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28 _propertyMap => PROP_RW | PROP_DIRECT
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29 ]
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30 };
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31
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32 our %Axes = (
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33 parent => \&selectParent,
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34 siblings => \&selectSiblings,
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35 child => \&childNodes,
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36 document => \&selectDocument,
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37 ancestor => \&selectAncestors,
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38 descendant => \&selectDescendant
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39 );
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40
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41 sub CTOR {
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42 my ($this,%args) = @_;
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43
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44 $this->{$nodeName} = delete $args{nodeName} or die new IMPL::InvalidArgumentException("A name is required");
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45 $this->{$nodeValue} = delete $args{nodeValue} if exists $args{nodeValue};
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46 if ( exists $args{document} ) {
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47 $this->{$document} = delete $args{document};
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48 weaken($this->{$document});
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49 }
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50
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51 while ( my ($key,$value) = each %args ) {
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52 $this->nodeProperty($key,$value);
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53 }
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54 }
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55
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56 sub insertNode {
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57 my ($this,$node,$pos) = @_;
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58
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59 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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60
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61 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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62
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63 $this->childNodes->InsertAt($pos,$node);
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64
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65 $node->_setParent( $this );
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66
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67 return $node;
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68 }
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69
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70 sub appendChild {
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71 my ($this,$node) = @_;
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72
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73 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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74
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75 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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76
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77 my $children = $this->childNodes;
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78 $children->Append($node);
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79
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80 $node->_setParent( $this );
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81
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82 return $node;
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83 }
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84
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85 sub appendNode {
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86 goto &appendChild;
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87 }
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88
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89 sub appendRange {
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90 my ($this,@range) = @_;
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91
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92 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if grep $_ == $this, @range;
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93
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94 foreach my $node (@range) {
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95 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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96 $node->_setParent( $this );
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97 }
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98
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99 $this->childNodes->Append(@range);
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100
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101 return $this;
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102 }
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103
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104 sub _getChildNodes {
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105 my ($this) = @_;
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106
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107 $this->{$childNodes} = new IMPL::Object::List() unless $this->{$childNodes};
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108 return wantarray ? @{ $this->{$childNodes} } : $this->{$childNodes};
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109 }
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110
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111 sub childNodesRef {
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112 my ($this) = @_;
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113 return scalar $this->_getChildNodes;
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114 }
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115
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116 sub removeNode {
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117 my ($this,$node) = @_;
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118
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119 if ($this == $node->{$parentNode}) {
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120 $this->childNodes->RemoveItem($node);
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121 $node->_setParent(undef);
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122 return $node;
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123 } else {
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124 die new IMPL::InvalidOperationException("The specified node isn't belong to this node");
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125 }
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126 }
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127
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128 sub replaceNodeAt {
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129 my ($this,$index,$node) = @_;
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130
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131 my $nodeOld = $this->childNodes->[$index];
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132
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133 die new IMPL::InvalidOperationException("You can't insert the node to itselft") if $this == $node;
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134
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135 # unlink node from previous parent
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136 $node->{$parentNode}->removeNode($node) if ($node->{$parentNode});
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137
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138 # replace (or set) old node
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139 $this->childNodes->[$index] = $node;
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140
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141 # set new parent
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142 $node->_setParent( $this );
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143
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144 # unlink old node if we have one
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145 $nodeOld->_setParent(undef) if $nodeOld;
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146
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147 # return old node
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148 return $nodeOld;
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149 }
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150
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151 sub removeAt {
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152 my ($this,$pos) = @_;
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153
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154 if ( my $node = $this->childNodes->RemoveAt($pos) ) {
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155 $node->_setParent(undef);
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156 return $node;
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157 } else {
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158 return undef;
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159 }
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160 }
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161
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162 sub removeLast {
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163 my ($this) = @_;
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164
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165 if ( my $node = $this->{$childNodes} ? $this->{$childNodes}->RemoveLast() : undef) {
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166 $node->_setParent(undef);
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167 return $node;
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168 } else {
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169 return undef;
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170 }
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171 }
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172
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173 sub removeSelected {
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174 my ($this,$query) = @_;
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175
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176 my @newSet;
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177 my @result;
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178
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179 if (ref $query eq 'CODE') {
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180 &$query($_) ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes};
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181 } elsif (defined $query) {
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182 $_->nodeName eq $query ? push @result, $_ : push @newSet, $_ foreach @{$this->childNodes};
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183 } else {
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184 my $children = $this->childNodes;
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185 $_->_setParent(undef) foreach @$children;
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186 delete $this->{$childNodes};
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187 return wantarray ? @$children : $children;
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188 }
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189
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190 $_->_setParent(undef) foreach @result;
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191
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192 $this->{$childNodes} = @newSet ? bless \@newSet ,'IMPL::Object::List' : undef;
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193
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194 return wantarray ? @result : \@result;
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195 }
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diff changeset
196
104
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parents: 102
diff changeset
197 sub resolveAxis {
194
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parents: 188
diff changeset
198 my ($this,$axis) = @_;
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diff changeset
199 return $Axes{$axis}->($this)
104
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200 }
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201
49
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202 sub selectNodes {
194
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parents: 188
diff changeset
203 my $this = shift;
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diff changeset
204 my $path;
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parents: 188
diff changeset
205
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cin
parents: 188
diff changeset
206 if (@_ == 1) {
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diff changeset
207 $path = $this->translatePath($_[0]);
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208 } else {
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209 $path = [@_];
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210 }
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211
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212 my @set = ($this);
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213
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214 while (@$path) {
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215 my $query = shift @$path;
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216 @set = map $_->selectNodesAxis($query), @set;
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217 }
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218
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219 return wantarray ? @set : \@set;
108
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parents: 104
diff changeset
220 }
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221
113
7b14e0122b79 Updated PostToDOM transformation
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parents: 109
diff changeset
222 sub selectSingleNode {
194
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parents: 188
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223 my $this = shift;
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224 my @result = $this->selectNodes(@_);
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225 return $result[0];
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parents: 109
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226 }
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227
109
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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228 sub selectNodesRef {
194
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229 my $this = shift;
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230
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231 my @result = $this->selectNodes(@_);
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232 return \@result;
109
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wizard
parents: 108
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233 }
ddf0f037d460 IMPL::DOM::Node updated to support TT, (added childNodesRef and selectNodesRef for using from TT)
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parents: 108
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234
108
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diff changeset
235 sub translatePath {
194
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236 my ($this,$path) = @_;
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237
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238 # TODO: Move path compilation here from IMPL::DOM::Schema::Validator::Compare
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239 return [$path];
108
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240 }
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241
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242 sub selectNodesAxis {
194
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243 my ($this,$query,$axis) = @_;
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244
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245 $axis ||= 'child';
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246
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247 die new IMPL::InvalidOperationException('Unknown axis',$axis) unless exists $Axes{$axis};
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248
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249 my $nodes = $this->resolveAxis($axis);
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250
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251 my @result;
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252
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253 if (ref $query eq 'CODE') {
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254 @result = grep &$query($_), @{$nodes};
49
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255 } elsif (ref $query eq 'ARRAY' ) {
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256 my %keys = map (($_,1),@$query);
104
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257 @result = grep $keys{$_->nodeName}, @{$nodes};
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diff changeset
258 } elsif (ref $query eq 'HASH') {
194
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parents: 188
diff changeset
259 while( my ($axis,$filter) = each %$query ) {
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diff changeset
260 push @result, $this->selectNodesAxis($filter,$axis);
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261 }
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262 } elsif (defined $query) {
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263 @result = grep $_->nodeName eq $query, @{$nodes};
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264 } else {
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265 return wantarray ? @{$nodes} : $nodes;
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266 }
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267
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268 return wantarray ? @result : \@result;
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269 }
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270
104
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diff changeset
271 sub selectParent {
194
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diff changeset
272 my ($this) = @_;
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273
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274 if ($this->parentNode) {
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275 return wantarray ? $this->parentNode : [$this->parentNode];
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276 } else {
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277 return wantarray ? () : [];
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278 }
104
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279 }
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280
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diff changeset
281 sub selectSiblings {
194
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282 my ($this) = @_;
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diff changeset
283
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diff changeset
284 if ($this->parentNode) {
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diff changeset
285 return $this->parentNode->selectNodes( sub { $_ != $this } );
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parents: 188
diff changeset
286 } else {
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diff changeset
287 return wantarray ? () : [];
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diff changeset
288 }
104
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parents: 102
diff changeset
289 }
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290
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diff changeset
291 sub selectDocument {
194
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parents: 188
diff changeset
292 my ($this) = @_;
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diff changeset
293
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parents: 188
diff changeset
294 if ($this->document) {
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diff changeset
295 return wantarray ? $this->document : [$this->document];
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parents: 188
diff changeset
296 } else {
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diff changeset
297 return wantarray ? () : [];
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parents: 188
diff changeset
298 }
104
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diff changeset
299 }
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diff changeset
300
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
301 sub selectDescendant {
194
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parents: 188
diff changeset
302 wantarray ?
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parents: 188
diff changeset
303 map $_->selectAll(), $_[0]->childNodes :
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diff changeset
304 [map $_->selectAll(), $_[0]->childNodes]
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
305 }
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306
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
307 sub selectAll {
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diff changeset
308 map(selectAll($_),@{$_[0]->childNodes}) , $_[0]
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diff changeset
309 }
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
310
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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parents: 124
diff changeset
311 sub selectAncestors {
194
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cin
parents: 188
diff changeset
312 my $parent = $_[0]->parentNode;
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parents: 188
diff changeset
313
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parents: 188
diff changeset
314 wantarray ?
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parents: 188
diff changeset
315 ($parent ? ($parent->selectAncestors,$parent) : ()) :
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diff changeset
316 [$parent ? ($parent->selectAncestors,$parent) : ()]
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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parents: 124
diff changeset
317 }
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
318
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319 sub firstChild {
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320 @_ >=2 ? $_[0]->replaceNodeAt(0,$_[1]) : $_[0]->childNodes->[0];
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321 }
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322
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diff changeset
323 sub _getIsComplex {
152
1e7f03414b65 DOM: schema improvements
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parents: 148
diff changeset
324 ($_[0]->{$childNodes} and $_[0]->{$childNodes}->Count) ? 1 : 0;
49
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325 }
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diff changeset
326
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327 sub _updateDocRefs {
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diff changeset
328 my ($this) = @_;
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diff changeset
329
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330 # this method is called by the parent node on his children, so we need no to check parent
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331 $this->{$document} = $this->{$parentNode}->document;
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332
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333 # prevent cyclic
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334 weaken($this->{$document}) if $this->{$document};
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diff changeset
335
173
aaab45153411 minor bugfixes
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parents: 165
diff changeset
336 map $_->_updateDocRefs, @{$this->{$childNodes}} if $this->{$childNodes};
49
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337 }
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338
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339 sub _setParent {
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340 my ($this,$node) = @_;
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diff changeset
341
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342
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343 if (($node || 0) != ($this->{$parentNode} || 0)) {
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344 my $newOwner;
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345 if ($node) {
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diff changeset
346 $this->{$parentNode} = $node;
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347 $newOwner = $node->document || 0;
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348
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349 # prevent from creating cyclicreferences
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350 weaken($this->{$parentNode});
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351
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352 } else {
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diff changeset
353 delete $this->{$parentNode};
75
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354
wizard
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355 #keep document
wizard
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diff changeset
356 $newOwner = $this->{$document};
49
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357 }
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diff changeset
358
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diff changeset
359 if (($this->{$document}||0) != $newOwner) {
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diff changeset
360 $this->{$document} = $newOwner;
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361 weaken($this->{$document}) if $newOwner;
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diff changeset
362 $_->_updateDocRefs foreach @{$this->childNodes};
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diff changeset
363 }
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diff changeset
364 }
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diff changeset
365 }
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diff changeset
366
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diff changeset
367 sub text {
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diff changeset
368 my ($this) = @_;
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diff changeset
369
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370 join ('', $this->nodeValue || '', map ($_->text || '', @{$this->childNodes}));
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diff changeset
371 }
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372
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373 sub nodeProperty {
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374 my $this = shift;
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diff changeset
375 my $name = shift;
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diff changeset
376
188
029c9610528c Memory leak tests in IMPL::Web::View
cin
parents: 180
diff changeset
377 return unless defined $name;
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cin
parents: 180
diff changeset
378
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
wizard
parents: 116
diff changeset
379 if (my $method = $this->can($name)) {
194
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parents: 188
diff changeset
380 unshift @_,$this;
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diff changeset
381 # use goto to preserve calling context
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diff changeset
382 goto &$method;
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
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parents: 116
diff changeset
383 }
148
e6447ad85cb4 DOM objects now have a schema and schemaSource properties
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diff changeset
384 # dynamic property
49
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diff changeset
385 if (@_) {
194
4d0e1962161c Replaced tabs with spaces
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parents: 188
diff changeset
386 # set
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parents: 188
diff changeset
387 return $this->{$_propertyMap}{$name} = shift;
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parents: 188
diff changeset
388 } else {
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diff changeset
389 return $this->{$_propertyMap}{$name};
49
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390 }
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391 }
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diff changeset
392
122
a7efb3117295 Fixed bug in IMPL::DOM::Navigator::selectNodes
wizard
parents: 116
diff changeset
393 sub listProperties {
194
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394 my ($this) = @_;
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395
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396 my %props = map {$_->name, 1} $this->GetMeta(PropertyInfo, sub { $_->attributes->{dom} },1);
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397
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398 return (keys %props,keys %{$this->{$_propertyMap}});
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399 }
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400
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401 sub save {
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402 my ($this,$writer) = @_;
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403
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404 if ( not ( $this->isComplex or defined $this->{$nodeValue} ) ) {
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405 $writer->emptyTag(
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406 $this->{$nodeName},
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407 map {
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408 $_,
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409 $this->nodeProperty($_)
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410 } grep defined $this->nodeProperty($_), $this->listProperties
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411 );
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412 } else {
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413 $writer->startTag(
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414 $this->{$nodeName},
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415 map {
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416 $_,
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417 $this->nodeProperty($_)
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418 } grep defined $this->nodeProperty($_), $this->listProperties
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419 );
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420 $writer->characters($this->{$nodeValue}) if $this->{$nodeValue};
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421
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422 $_->save($writer) foreach $this->childNodes;
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423
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424 $writer->endTag($this->{$nodeName});
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425 }
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426 }
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427
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428 sub qname {
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429 $_[0]->{$nodeName};
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430 }
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431
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432 sub path {
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433 my ($this) = @_;
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434
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435 if ($this->parentNode) {
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436 return $this->parentNode->path.'.'.$this->qname;
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437 } else {
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438 return $this->qname;
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439 }
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440 }
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441
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442 1;
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443
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444 __END__
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445
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446 =pod
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447
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448 =head1 NAME
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449
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450 C<IMPL::DOM::Node> Элемент DOM модели
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451
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452 =head1 DESCRIPTION
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453
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454 Базовый узел DOM модели. От него можно наследовать другие элементы DOM модели.
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455
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456 =head1 MEMBERS
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457
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458 =head2 PROPERTIES
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459
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460 =over
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461
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462 =item C<[get] nodeName>
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463
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464 Имя узла. Задается при создании.
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465
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466 =item C<[get] document>
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467
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468 Документ к которому принадлежит узел. Задается при поздании узла.
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469
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470 =item C<[get] isComplex>
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471
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472 Определяет является ли узел сложным (тоесть есть ли дети).
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473
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474 C<true> - есть, C<false> - нет.
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475
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476 =item C<[get,set] nodeValue>
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477
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478 Значение узла, обычно простой скаляр, но ничто не мешает туда
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479 устанавливать любое значение.
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480
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481 =item C<[get,list] childNodes>
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482
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483 Список детей, является списокм C<IMPL::Object::List>.
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484
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485 =item C<[get] parentNode>
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486
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487 Ссылка на родительский элемент, если таковой имеется.
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488
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489 =item C<[get] schemaType>
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490
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491 Ссылка на узел из C<IMPL::DOM::Schema>, представляющий схему данных текущего узла. Может быть C<undef>.
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492
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493 =item C<[get] schemaNode>
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494
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495 Ссылка на узел из C<IMPL::DOM::Schema>, представляющий элемент схемы, объявляющий данный узел. Может быть C<undef>.
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496
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497 Отличается от свойства C<schemaType> тем, что узел в случае ссылки на тип узла, данной свойство будет содержать
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498 описание ссылки C<IMPL::DOM::Schema::Node>, а свойство C<schema> например будет ссылаться на
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499 C<IMPL::DOM::Schema::ComplexType>.
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500
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501 =back
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502
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503 =head2 METHODS
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504
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505 =cut