[0ff8d110] | 1 | ############################################################################## |
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| 2 | # |
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| 3 | # This library is free software; you can redistribute it and/or |
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| 4 | # modify it under the terms of the GNU Library General Public |
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| 5 | # License as published by the Free Software Foundation; either |
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| 6 | # version 2 of the License, or (at your option) any later version. |
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| 7 | # |
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| 8 | # This library is distributed in the hope that it will be useful, |
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| 9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 11 | # Library General Public License for more details. |
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| 12 | # |
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| 13 | # You should have received a copy of the GNU Library General Public |
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| 14 | # License along with this library; if not, write to the |
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| 15 | # Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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| 16 | # Boston, MA 02111-1307, USA. |
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| 17 | # |
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| 18 | # Jabber |
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| 19 | # Copyright (C) 1998-2004 Jabber Software Foundation http://jabber.org/ |
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| 20 | # |
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| 21 | ############################################################################## |
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| 22 | |
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| 23 | |
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| 24 | ############################################################################## |
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| 25 | # |
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| 26 | # Op - Base Op class |
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| 27 | # |
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| 28 | ############################################################################## |
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| 29 | package XML::Stream::XPath::Op; |
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| 30 | |
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| 31 | use 5.006_001; |
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| 32 | use strict; |
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| 33 | use vars qw( $VERSION ); |
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| 34 | |
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| 35 | $VERSION = "1.22"; |
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| 36 | |
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| 37 | sub new |
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| 38 | { |
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| 39 | my $proto = shift; |
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| 40 | return &allocate($proto,@_); |
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| 41 | } |
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| 42 | |
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| 43 | sub allocate |
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| 44 | { |
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| 45 | my $proto = shift; |
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| 46 | my $self = { }; |
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| 47 | |
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| 48 | bless($self,$proto); |
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| 49 | |
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| 50 | $self->{TYPE} = shift; |
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| 51 | $self->{VALUE} = shift; |
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| 52 | |
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| 53 | return $self; |
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| 54 | } |
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| 55 | |
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| 56 | sub getValue |
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| 57 | { |
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| 58 | my $self = shift; |
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| 59 | return $self->{VALUE}; |
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| 60 | } |
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| 61 | |
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| 62 | sub calcStr |
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| 63 | { |
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| 64 | my $self = shift; |
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| 65 | return $self->{VALUE}; |
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| 66 | } |
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| 67 | |
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| 68 | sub getType |
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| 69 | { |
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| 70 | my $self = shift; |
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| 71 | return $self->{TYPE}; |
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| 72 | } |
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| 73 | |
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| 74 | |
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| 75 | sub isValid |
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| 76 | { |
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| 77 | my $self = shift; |
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| 78 | my $ctxt = shift; |
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| 79 | return 1; |
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| 80 | } |
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| 81 | |
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| 82 | sub display |
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| 83 | { |
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| 84 | my $self = shift; |
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| 85 | my $space = shift; |
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| 86 | $space = "" unless defined($space); |
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| 87 | |
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| 88 | print $space,"OP: type($self->{TYPE}) value($self->{VALUE})\n"; |
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| 89 | } |
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| 90 | |
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| 91 | |
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| 92 | |
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| 93 | ############################################################################## |
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| 94 | # |
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| 95 | # PositionOp - class to handle [0] ops |
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| 96 | # |
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| 97 | ############################################################################## |
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| 98 | package XML::Stream::XPath::PositionOp; |
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| 99 | |
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| 100 | use vars qw (@ISA); |
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| 101 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 102 | |
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| 103 | sub new |
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| 104 | { |
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| 105 | my $proto = shift; |
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| 106 | my $self = $proto->allocate("POSITION",""); |
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| 107 | $self->{POS} = shift; |
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| 108 | |
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| 109 | return $self; |
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| 110 | } |
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| 111 | |
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| 112 | |
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| 113 | sub isValid |
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| 114 | { |
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| 115 | my $self = shift; |
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| 116 | my $ctxt = shift; |
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| 117 | |
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| 118 | my @elems = $$ctxt->getList(); |
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| 119 | my @valid_elems; |
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| 120 | if ($#elems+1 < $self->{POS}) |
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| 121 | { |
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| 122 | return; |
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| 123 | } |
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| 124 | |
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| 125 | push(@valid_elems, $elems[$self->{POS}-1]); |
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| 126 | |
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| 127 | $$ctxt->setList(@valid_elems); |
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| 128 | |
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| 129 | return 1; |
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| 130 | } |
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| 131 | |
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| 132 | |
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| 133 | |
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| 134 | ############################################################################## |
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| 135 | # |
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| 136 | # ContextOp - class to handle [...] ops |
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| 137 | # |
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| 138 | ############################################################################## |
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| 139 | package XML::Stream::XPath::ContextOp; |
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| 140 | |
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| 141 | use vars qw (@ISA); |
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| 142 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 143 | |
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| 144 | sub new |
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| 145 | { |
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| 146 | my $proto = shift; |
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| 147 | my $self = $proto->allocate("CONTEXT",""); |
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| 148 | $self->{OP} = shift; |
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| 149 | return $self; |
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| 150 | } |
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| 151 | |
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| 152 | |
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| 153 | sub isValid |
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| 154 | { |
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| 155 | my $self = shift; |
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| 156 | my $ctxt = shift; |
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| 157 | |
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| 158 | my @elems = $$ctxt->getList(); |
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| 159 | my @valid_elems; |
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| 160 | foreach my $elem (@elems) |
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| 161 | { |
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| 162 | my $tmp_ctxt = new XML::Stream::XPath::Value($elem); |
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| 163 | $tmp_ctxt->in_context(1); |
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| 164 | if ($self->{OP}->isValid(\$tmp_ctxt)) |
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| 165 | { |
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| 166 | push(@valid_elems,$elem); |
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| 167 | } |
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| 168 | } |
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| 169 | |
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| 170 | $$ctxt->setList(@valid_elems); |
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| 171 | |
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| 172 | if ($#valid_elems == -1) |
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| 173 | { |
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| 174 | return; |
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| 175 | } |
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| 176 | |
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| 177 | return 1; |
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| 178 | } |
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| 179 | |
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| 180 | |
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| 181 | sub display |
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| 182 | { |
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| 183 | my $self = shift; |
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| 184 | my $space = shift; |
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| 185 | $space = "" unless defined($space); |
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| 186 | |
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| 187 | print "${space}OP: type(CONTEXT) op: \n"; |
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| 188 | $self->{OP}->display("$space "); |
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| 189 | } |
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| 190 | |
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| 191 | |
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| 192 | |
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| 193 | |
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| 194 | ############################################################################## |
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| 195 | # |
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| 196 | # AllOp - class to handle // ops |
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| 197 | # |
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| 198 | ############################################################################## |
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| 199 | package XML::Stream::XPath::AllOp; |
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| 200 | |
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| 201 | use vars qw (@ISA); |
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| 202 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 203 | |
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| 204 | sub new |
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| 205 | { |
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| 206 | my $proto = shift; |
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| 207 | my $name = shift; |
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| 208 | my $self = $proto->allocate("ALL",$name); |
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| 209 | return $self; |
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| 210 | } |
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| 211 | |
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| 212 | |
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| 213 | sub isValid |
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| 214 | { |
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| 215 | my $self = shift; |
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| 216 | my $ctxt = shift; |
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| 217 | |
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| 218 | my @elems = $$ctxt->getList(); |
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| 219 | |
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| 220 | if ($#elems == -1) |
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| 221 | { |
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| 222 | return; |
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| 223 | } |
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| 224 | |
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| 225 | my @valid_elems; |
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| 226 | |
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| 227 | foreach my $elem (@elems) |
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| 228 | { |
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| 229 | push(@valid_elems,$self->descend($elem)); |
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| 230 | } |
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| 231 | |
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| 232 | $$ctxt->setList(@valid_elems); |
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| 233 | |
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| 234 | if ($#valid_elems == -1) |
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| 235 | { |
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| 236 | return; |
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| 237 | } |
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| 238 | |
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| 239 | return 1; |
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| 240 | } |
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| 241 | |
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| 242 | |
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| 243 | sub descend |
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| 244 | { |
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| 245 | my $self = shift; |
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| 246 | my $elem = shift; |
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| 247 | |
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| 248 | my @valid_elems; |
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| 249 | |
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| 250 | if (($self->{VALUE} eq "*") || (&XML::Stream::GetXMLData("tag",$elem) eq $self->{VALUE})) |
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| 251 | { |
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| 252 | push(@valid_elems,$elem); |
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| 253 | } |
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| 254 | |
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| 255 | foreach my $child (&XML::Stream::GetXMLData("child array",$elem,"*")) |
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| 256 | { |
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| 257 | push(@valid_elems,$self->descend($child)); |
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| 258 | } |
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| 259 | |
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| 260 | return @valid_elems; |
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| 261 | } |
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| 262 | |
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| 263 | |
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| 264 | |
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| 265 | ############################################################################## |
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| 266 | # |
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| 267 | # NodeOp - class to handle ops based on node names |
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| 268 | # |
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| 269 | ############################################################################## |
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| 270 | package XML::Stream::XPath::NodeOp; |
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| 271 | |
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| 272 | use vars qw (@ISA); |
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| 273 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 274 | |
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| 275 | sub new |
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| 276 | { |
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| 277 | my $proto = shift; |
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| 278 | my $name = shift; |
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| 279 | my $is_root = shift; |
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| 280 | $is_root = 0 unless defined($is_root); |
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| 281 | my $self = $proto->allocate("NODE",$name); |
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| 282 | $self->{ISROOT} = $is_root; |
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| 283 | return $self; |
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| 284 | } |
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| 285 | |
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| 286 | |
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| 287 | sub isValid |
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| 288 | { |
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| 289 | my $self = shift; |
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| 290 | my $ctxt = shift; |
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| 291 | |
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| 292 | if ($self->{ISROOT}) |
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| 293 | { |
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| 294 | my $elem = $$ctxt->getFirstElem(); |
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| 295 | if (&XML::Stream::GetXMLData("tag",$elem) ne $self->{VALUE}) |
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| 296 | { |
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| 297 | return; |
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| 298 | } |
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| 299 | return 1; |
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| 300 | } |
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| 301 | |
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| 302 | my @valid_elems; |
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| 303 | |
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| 304 | foreach my $elem ($$ctxt->getList()) |
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| 305 | { |
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| 306 | my $valid = 0; |
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| 307 | |
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| 308 | foreach my $child (&XML::Stream::GetXMLData("child array",$elem,"*")) |
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| 309 | { |
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| 310 | if (($self->{VALUE} eq "*") || |
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| 311 | (&XML::Stream::GetXMLData("tag",$child) eq $self->{VALUE})) |
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| 312 | { |
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| 313 | if ($$ctxt->in_context()) |
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| 314 | { |
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| 315 | $valid = 1; |
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| 316 | } |
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| 317 | else |
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| 318 | { |
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| 319 | push(@valid_elems,$child); |
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| 320 | } |
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| 321 | } |
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| 322 | } |
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| 323 | if ($valid) |
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| 324 | { |
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| 325 | push(@valid_elems,$elem); |
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| 326 | } |
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| 327 | } |
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| 328 | |
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| 329 | $$ctxt->setList(@valid_elems); |
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| 330 | |
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| 331 | if ($#valid_elems == -1) |
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| 332 | { |
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| 333 | return; |
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| 334 | } |
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| 335 | |
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| 336 | return 1; |
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| 337 | } |
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| 338 | |
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| 339 | |
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| 340 | sub calcStr |
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| 341 | { |
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| 342 | my $self = shift; |
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| 343 | my $elem = shift; |
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| 344 | return &XML::Stream::GetXMLData("value",$elem); |
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| 345 | } |
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| 346 | |
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| 347 | |
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| 348 | ############################################################################## |
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| 349 | # |
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| 350 | # EqualOp - class to handle [ x = y ] ops |
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| 351 | # |
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| 352 | ############################################################################## |
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| 353 | package XML::Stream::XPath::EqualOp; |
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| 354 | |
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| 355 | use vars qw (@ISA); |
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| 356 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 357 | |
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| 358 | sub new |
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| 359 | { |
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| 360 | my $proto = shift; |
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| 361 | my $self = $proto->allocate("EQUAL",""); |
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| 362 | $self->{OP_L} = shift; |
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| 363 | $self->{OP_R} = shift; |
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| 364 | return $self; |
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| 365 | } |
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| 366 | |
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| 367 | |
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| 368 | sub isValid |
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| 369 | { |
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| 370 | my $self = shift; |
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| 371 | my $ctxt = shift; |
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| 372 | |
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| 373 | my $tmp_ctxt = new XML::Stream::XPath::Value(); |
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| 374 | $tmp_ctxt->setList($$ctxt->getList()); |
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| 375 | $tmp_ctxt->in_context(0); |
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| 376 | |
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| 377 | if (!$self->{OP_L}->isValid(\$tmp_ctxt) || !$self->{OP_R}->isValid(\$tmp_ctxt)) |
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| 378 | { |
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| 379 | return; |
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| 380 | } |
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| 381 | |
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| 382 | my @valid_elems; |
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| 383 | foreach my $elem ($tmp_ctxt->getList) |
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| 384 | { |
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| 385 | if ($self->{OP_L}->calcStr($elem) eq $self->{OP_R}->calcStr($elem)) |
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| 386 | { |
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| 387 | push(@valid_elems,$elem); |
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| 388 | } |
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| 389 | } |
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| 390 | |
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| 391 | if ( $#valid_elems > -1) |
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| 392 | { |
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| 393 | @valid_elems = $$ctxt->getList(); |
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| 394 | } |
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| 395 | |
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| 396 | $$ctxt->setList(@valid_elems); |
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| 397 | |
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| 398 | if ($#valid_elems == -1) |
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| 399 | { |
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| 400 | return; |
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| 401 | } |
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| 402 | |
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| 403 | return 1; |
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| 404 | } |
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| 405 | |
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| 406 | |
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| 407 | sub display |
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| 408 | { |
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| 409 | my $self = shift; |
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| 410 | my $space = shift; |
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| 411 | $space = "" unless defined($space); |
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| 412 | |
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| 413 | print $space,"OP: type(EQUAL)\n"; |
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| 414 | print $space," op_l: "; |
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| 415 | $self->{OP_L}->display($space." "); |
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| 416 | |
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| 417 | print $space," op_r: "; |
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| 418 | $self->{OP_R}->display($space." "); |
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| 419 | } |
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| 420 | |
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| 421 | |
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| 422 | |
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| 423 | ############################################################################## |
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| 424 | # |
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| 425 | # NotEqualOp - class to handle [ x != y ] ops |
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| 426 | # |
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| 427 | ############################################################################## |
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| 428 | package XML::Stream::XPath::NotEqualOp; |
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| 429 | |
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| 430 | use vars qw (@ISA); |
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| 431 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 432 | |
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| 433 | sub new |
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| 434 | { |
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| 435 | my $proto = shift; |
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| 436 | my $self = $proto->allocate("NOTEQUAL",""); |
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| 437 | $self->{OP_L} = shift; |
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| 438 | $self->{OP_R} = shift; |
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| 439 | return $self; |
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| 440 | } |
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| 441 | |
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| 442 | |
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| 443 | sub isValid |
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| 444 | { |
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| 445 | my $self = shift; |
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| 446 | my $ctxt = shift; |
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| 447 | |
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| 448 | my $tmp_ctxt = new XML::Stream::XPath::Value(); |
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| 449 | $tmp_ctxt->setList($$ctxt->getList()); |
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| 450 | $tmp_ctxt->in_context(0); |
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| 451 | |
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| 452 | if (!$self->{OP_L}->isValid(\$tmp_ctxt) || !$self->{OP_R}->isValid(\$tmp_ctxt)) |
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| 453 | { |
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| 454 | return; |
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| 455 | } |
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| 456 | |
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| 457 | my @valid_elems; |
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| 458 | foreach my $elem ($tmp_ctxt->getList) |
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| 459 | { |
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| 460 | if ($self->{OP_L}->calcStr($elem) ne $self->{OP_R}->calcStr($elem)) |
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| 461 | { |
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| 462 | push(@valid_elems,$elem); |
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| 463 | } |
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| 464 | } |
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| 465 | |
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| 466 | if ( $#valid_elems > -1) |
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| 467 | { |
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| 468 | @valid_elems = $$ctxt->getList(); |
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| 469 | } |
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| 470 | |
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| 471 | $$ctxt->setList(@valid_elems); |
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| 472 | |
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| 473 | if ($#valid_elems == -1) |
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| 474 | { |
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| 475 | return; |
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| 476 | } |
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| 477 | |
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| 478 | return 1; |
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| 479 | } |
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| 480 | |
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| 481 | |
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| 482 | sub display |
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| 483 | { |
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| 484 | my $self = shift; |
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| 485 | my $space = shift; |
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| 486 | $space = "" unless defined($space); |
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| 487 | |
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| 488 | print $space,"OP: type(NOTEQUAL)\n"; |
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| 489 | print $space," op_l: "; |
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| 490 | $self->{OP_L}->display($space." "); |
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| 491 | |
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| 492 | print $space," op_r: "; |
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| 493 | $self->{OP_R}->display($space." "); |
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| 494 | } |
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| 495 | |
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| 496 | |
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| 497 | |
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| 498 | ############################################################################## |
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| 499 | # |
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| 500 | # AttributeOp - class to handle @foo ops. |
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| 501 | # |
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| 502 | ############################################################################## |
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| 503 | package XML::Stream::XPath::AttributeOp; |
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| 504 | |
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| 505 | use vars qw (@ISA); |
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| 506 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 507 | |
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| 508 | sub new |
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| 509 | { |
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| 510 | my $proto = shift; |
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| 511 | my $name = shift; |
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| 512 | my $self = $proto->allocate("ATTRIBUTE",$name); |
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| 513 | return $self; |
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| 514 | } |
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| 515 | |
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| 516 | |
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| 517 | sub isValid |
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| 518 | { |
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| 519 | my $self = shift; |
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| 520 | my $ctxt = shift; |
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| 521 | |
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| 522 | my @elems = $$ctxt->getList(); |
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| 523 | my @valid_elems; |
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| 524 | my @values; |
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| 525 | my %attribs; |
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| 526 | |
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| 527 | foreach my $elem (@elems) |
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| 528 | { |
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| 529 | if ($self->{VALUE} ne "*") |
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| 530 | { |
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| 531 | if (&XML::Stream::GetXMLData("value",$elem,"",$self->{VALUE})) |
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| 532 | { |
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| 533 | $self->{VAL} = $self->calcStr($elem); |
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| 534 | push(@valid_elems,$elem); |
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| 535 | push(@values,$self->{VAL}); |
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| 536 | } |
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| 537 | } |
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| 538 | else |
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| 539 | { |
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| 540 | my %attrib = &XML::Stream::GetXMLData("attribs",$elem); |
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| 541 | if (scalar(keys(%attrib)) > 0) |
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| 542 | { |
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| 543 | push(@valid_elems,$elem); |
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| 544 | foreach my $key (keys(%attrib)) |
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| 545 | { |
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| 546 | $attribs{$key} = $attrib{$key}; |
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| 547 | } |
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| 548 | } |
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| 549 | } |
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| 550 | } |
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| 551 | |
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| 552 | $$ctxt->setList(@valid_elems); |
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| 553 | $$ctxt->setValues(@values); |
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| 554 | $$ctxt->setAttribs(%attribs); |
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| 555 | |
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| 556 | if ($#valid_elems == -1) |
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| 557 | { |
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| 558 | return; |
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| 559 | } |
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| 560 | |
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| 561 | return 1; |
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| 562 | } |
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| 563 | |
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| 564 | |
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| 565 | sub getValue |
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| 566 | { |
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| 567 | my $self = shift; |
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| 568 | return $self->{VAL}; |
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| 569 | } |
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| 570 | |
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| 571 | |
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| 572 | sub calcStr |
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| 573 | { |
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| 574 | my $self = shift; |
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| 575 | my $elem = shift; |
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| 576 | return &XML::Stream::GetXMLData("value",$elem,"",$self->{VALUE}); |
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| 577 | } |
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| 578 | |
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| 579 | |
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| 580 | |
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| 581 | |
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| 582 | ############################################################################## |
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| 583 | # |
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| 584 | # AndOp - class to handle [ .... and .... ] ops |
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| 585 | # |
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| 586 | ############################################################################## |
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| 587 | package XML::Stream::XPath::AndOp; |
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| 588 | |
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| 589 | use vars qw (@ISA); |
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| 590 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 591 | |
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| 592 | sub new |
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| 593 | { |
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| 594 | my $proto = shift; |
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| 595 | my $self = $proto->allocate("AND","and"); |
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| 596 | $self->{OP_L} = shift; |
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| 597 | $self->{OP_R} = shift; |
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| 598 | return $self; |
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| 599 | } |
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| 600 | |
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| 601 | |
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| 602 | sub isValid |
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| 603 | { |
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| 604 | my $self = shift; |
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| 605 | my $ctxt = shift; |
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| 606 | |
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| 607 | my $opl = $self->{OP_L}->isValid($ctxt); |
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| 608 | my $opr = $self->{OP_R}->isValid($ctxt); |
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| 609 | |
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| 610 | if ($opl && $opr) |
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| 611 | { |
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| 612 | return 1; |
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| 613 | } |
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| 614 | else |
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| 615 | { |
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| 616 | return; |
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| 617 | } |
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| 618 | } |
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| 619 | |
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| 620 | |
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| 621 | sub display |
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| 622 | { |
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| 623 | my $self = shift; |
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| 624 | my $space = shift; |
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| 625 | $space = "" unless defined($space); |
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| 626 | |
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| 627 | print $space,"OP: type(AND)\n"; |
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| 628 | print $space," op_l: \n"; |
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| 629 | $self->{OP_L}->display($space." "); |
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| 630 | |
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| 631 | print $space," op_r: \n"; |
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| 632 | $self->{OP_R}->display($space." "); |
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| 633 | } |
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| 634 | |
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| 635 | |
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| 636 | |
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| 637 | ############################################################################## |
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| 638 | # |
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| 639 | # OrOp - class to handle [ .... or .... ] ops |
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| 640 | # |
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| 641 | ############################################################################## |
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| 642 | package XML::Stream::XPath::OrOp; |
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| 643 | |
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| 644 | use vars qw (@ISA); |
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| 645 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 646 | |
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| 647 | sub new |
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| 648 | { |
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| 649 | my $proto = shift; |
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| 650 | my $self = $proto->allocate("OR","or"); |
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| 651 | $self->{OP_L} = shift; |
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| 652 | $self->{OP_R} = shift; |
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| 653 | return $self; |
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| 654 | } |
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| 655 | |
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| 656 | |
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| 657 | sub isValid |
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| 658 | { |
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| 659 | my $self = shift; |
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| 660 | my $ctxt = shift; |
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| 661 | |
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| 662 | my @elems = $$ctxt->getList(); |
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| 663 | my @valid_elems; |
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| 664 | |
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| 665 | foreach my $elem (@elems) |
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| 666 | { |
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| 667 | my $tmp_ctxt_l = new XML::Stream::XPath::Value($elem); |
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| 668 | $tmp_ctxt_l->in_context(1); |
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| 669 | my $tmp_ctxt_r = new XML::Stream::XPath::Value($elem); |
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| 670 | $tmp_ctxt_r->in_context(1); |
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| 671 | |
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| 672 | my $opl = $self->{OP_L}->isValid(\$tmp_ctxt_l); |
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| 673 | my $opr = $self->{OP_R}->isValid(\$tmp_ctxt_r); |
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| 674 | |
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| 675 | if ($opl || $opr) |
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| 676 | { |
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| 677 | push(@valid_elems,$elem); |
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| 678 | } |
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| 679 | } |
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| 680 | |
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| 681 | $$ctxt->setList(@valid_elems); |
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| 682 | |
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| 683 | if ($#valid_elems == -1) |
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| 684 | { |
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| 685 | return; |
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| 686 | } |
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| 687 | |
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| 688 | return 1; |
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| 689 | } |
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| 690 | |
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| 691 | |
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| 692 | sub display |
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| 693 | { |
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| 694 | my $self = shift; |
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| 695 | my $space = shift; |
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| 696 | $space = "" unless defined($space); |
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| 697 | |
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| 698 | print "${space}OP: type(OR)\n"; |
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| 699 | print "$space op_l: "; |
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| 700 | $self->{OP_L}->display("$space "); |
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| 701 | |
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| 702 | print "$space op_r: "; |
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| 703 | $self->{OP_R}->display("$space "); |
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| 704 | } |
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| 705 | |
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| 706 | |
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| 707 | |
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| 708 | ############################################################################## |
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| 709 | # |
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| 710 | # FunctionOp - class to handle xxxx(...) ops |
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| 711 | # |
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| 712 | ############################################################################## |
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| 713 | package XML::Stream::XPath::FunctionOp; |
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| 714 | |
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| 715 | use vars qw (@ISA); |
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| 716 | @ISA = ( "XML::Stream::XPath::Op" ); |
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| 717 | |
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| 718 | sub new |
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| 719 | { |
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| 720 | my $proto = shift; |
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| 721 | my $function = shift; |
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| 722 | my $self = $proto->allocate("FUNCTION",$function); |
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| 723 | $self->{CLOSED} = 0; |
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| 724 | return $self; |
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| 725 | } |
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| 726 | |
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| 727 | |
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| 728 | sub addArg |
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| 729 | { |
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| 730 | my $self = shift; |
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| 731 | my $arg = shift; |
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| 732 | |
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| 733 | push(@{$self->{ARGOPS}},$arg); |
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| 734 | } |
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| 735 | |
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| 736 | |
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| 737 | sub isValid |
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| 738 | { |
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| 739 | my $self = shift; |
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| 740 | my $ctxt = shift; |
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| 741 | |
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| 742 | my $result; |
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| 743 | eval("\$result = &{\$XML::Stream::XPath::FUNCTIONS{\$self->{VALUE}}}(\$ctxt,\@{\$self->{ARGOPS}});"); |
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| 744 | return $result; |
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| 745 | } |
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| 746 | |
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| 747 | |
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| 748 | sub calcStr |
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| 749 | { |
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| 750 | my $self = shift; |
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| 751 | my $elem = shift; |
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| 752 | |
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| 753 | my $result; |
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| 754 | eval("\$result = &{\$XML::Stream::XPath::VALUES{\$self->{VALUE}}}(\$elem);"); |
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| 755 | return $result; |
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| 756 | |
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| 757 | } |
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| 758 | |
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| 759 | |
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| 760 | sub display |
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| 761 | { |
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| 762 | my $self = shift; |
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| 763 | my $space = shift; |
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| 764 | $space = "" unless defined($space); |
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| 765 | |
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| 766 | print $space,"OP: type(FUNCTION)\n"; |
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| 767 | print $space," $self->{VALUE}(\n"; |
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| 768 | foreach my $arg (@{$self->{ARGOPS}}) |
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| 769 | { |
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| 770 | print $arg,"\n"; |
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| 771 | $arg->display($space." "); |
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| 772 | } |
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| 773 | print "$space )\n"; |
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| 774 | } |
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| 775 | |
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| 776 | |
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| 777 | sub function_name |
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| 778 | { |
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| 779 | my $ctxt = shift; |
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| 780 | my (@args) = @_; |
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| 781 | |
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| 782 | my @elems = $$ctxt->getList(); |
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| 783 | my @valid_elems; |
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| 784 | my @valid_values; |
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| 785 | foreach my $elem (@elems) |
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| 786 | { |
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| 787 | my $text = &value_name($elem); |
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| 788 | if (defined($text)) |
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| 789 | { |
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| 790 | push(@valid_elems,$elem); |
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| 791 | push(@valid_values,$text); |
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| 792 | } |
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| 793 | } |
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| 794 | |
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| 795 | $$ctxt->setList(@valid_elems); |
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| 796 | $$ctxt->setValues(@valid_values); |
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| 797 | |
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| 798 | if ($#valid_elems == -1) |
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| 799 | { |
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| 800 | return; |
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| 801 | } |
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| 802 | |
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| 803 | return 1; |
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| 804 | } |
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| 805 | |
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| 806 | |
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| 807 | sub function_not |
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| 808 | { |
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| 809 | my $ctxt = shift; |
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| 810 | my (@args) = @_; |
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| 811 | |
---|
| 812 | my @elems = $$ctxt->getList(); |
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| 813 | my @valid_elems; |
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| 814 | foreach my $elem (@elems) |
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| 815 | { |
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| 816 | my $tmp_ctxt = new XML::Stream::XPath::Value($elem); |
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| 817 | $tmp_ctxt->in_context(1); |
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| 818 | if (!($args[0]->isValid(\$tmp_ctxt))) |
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| 819 | { |
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| 820 | push(@valid_elems,$elem); |
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| 821 | } |
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| 822 | } |
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| 823 | |
---|
| 824 | $$ctxt->setList(@valid_elems); |
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| 825 | |
---|
| 826 | if ($#valid_elems == -1) |
---|
| 827 | { |
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| 828 | return; |
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| 829 | } |
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| 830 | |
---|
| 831 | return 1; |
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| 832 | } |
---|
| 833 | |
---|
| 834 | |
---|
| 835 | sub function_text |
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| 836 | { |
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| 837 | my $ctxt = shift; |
---|
| 838 | my (@args) = @_; |
---|
| 839 | |
---|
| 840 | my @elems = $$ctxt->getList(); |
---|
| 841 | my @valid_elems; |
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| 842 | my @valid_values; |
---|
| 843 | foreach my $elem (@elems) |
---|
| 844 | { |
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| 845 | my $text = &value_text($elem); |
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| 846 | if (defined($text)) |
---|
| 847 | { |
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| 848 | push(@valid_elems,$elem); |
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| 849 | push(@valid_values,$text); |
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| 850 | } |
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| 851 | } |
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| 852 | |
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| 853 | $$ctxt->setList(@valid_elems); |
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| 854 | $$ctxt->setValues(@valid_values); |
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| 855 | |
---|
| 856 | if ($#valid_elems == -1) |
---|
| 857 | { |
---|
| 858 | return; |
---|
| 859 | } |
---|
| 860 | |
---|
| 861 | return 1; |
---|
| 862 | } |
---|
| 863 | |
---|
| 864 | |
---|
| 865 | sub function_startswith |
---|
| 866 | { |
---|
| 867 | my $ctxt = shift; |
---|
| 868 | my (@args) = @_; |
---|
| 869 | |
---|
| 870 | my @elems = $$ctxt->getList(); |
---|
| 871 | my @valid_elems; |
---|
| 872 | foreach my $elem (@elems) |
---|
| 873 | { |
---|
| 874 | my $val1 = $args[0]->calcStr($elem); |
---|
| 875 | my $val2 = $args[1]->calcStr($elem); |
---|
| 876 | |
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| 877 | if (substr($val1,0,length($val2)) eq $val2) |
---|
| 878 | { |
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| 879 | push(@valid_elems,$elem); |
---|
| 880 | } |
---|
| 881 | } |
---|
| 882 | |
---|
| 883 | $$ctxt->setList(@valid_elems); |
---|
| 884 | |
---|
| 885 | if ($#valid_elems == -1) |
---|
| 886 | { |
---|
| 887 | return; |
---|
| 888 | } |
---|
| 889 | |
---|
| 890 | return 1; |
---|
| 891 | } |
---|
| 892 | |
---|
| 893 | |
---|
| 894 | sub value_name |
---|
| 895 | { |
---|
| 896 | my $elem = shift; |
---|
| 897 | return &XML::Stream::GetXMLData("tag",$elem); |
---|
| 898 | } |
---|
| 899 | |
---|
| 900 | |
---|
| 901 | sub value_text |
---|
| 902 | { |
---|
| 903 | my $elem = shift; |
---|
| 904 | return &XML::Stream::GetXMLData("value",$elem); |
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| 905 | } |
---|
| 906 | |
---|
| 907 | |
---|
| 908 | |
---|
| 909 | $XML::Stream::XPath::FUNCTIONS{'name'} = \&function_name; |
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| 910 | $XML::Stream::XPath::FUNCTIONS{'not'} = \&function_not; |
---|
| 911 | $XML::Stream::XPath::FUNCTIONS{'text'} = \&function_text; |
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| 912 | $XML::Stream::XPath::FUNCTIONS{'starts-with'} = \&function_startswith; |
---|
| 913 | |
---|
| 914 | $XML::Stream::XPath::VALUES{'name'} = \&value_name; |
---|
| 915 | $XML::Stream::XPath::VALUES{'text'} = \&value_text; |
---|
| 916 | |
---|
| 917 | 1; |
---|
| 918 | |
---|
| 919 | |
---|