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#============================================================= -*-perl-*- |
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# XML::Schema::Type::Union |
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# DESCRIPTION |
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# Module implementing the XML Schema union datatype. |
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# AUTHOR |
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# Andy Wardley |
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# COPYRIGHT |
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# Copyright (C) 2001 Canon Research Centre Europe Ltd. |
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# All Rights Reserved. |
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# This module is free software; you can redistribute it and/or |
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# modify it under the same terms as Perl itself. |
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# REVISION |
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# $Id: Union.pm,v 1.1.1.1 2001/08/29 14:30:17 abw Exp $ |
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#======================================================================== |
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package XML::Schema::Type::Union; |
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use strict; |
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use XML::Schema::Type::Simple; |
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use base qw( XML::Schema::Type::Simple ); |
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use vars qw( $VERSION $DEBUG $ERROR @MANDATORY ); |
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$VERSION = sprintf("%d.%02d", q$Revision: 1.1.1.1 $ =~ /(\d+)\.(\d+)/); |
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$DEBUG = 0 unless defined $DEBUG; |
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$ERROR = ''; |
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@MANDATORY = qw( memberTypes ); |
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sub init { |
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my ($self, $config) = @_; |
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$self->SUPER::init($config) |
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|| return; |
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$self->{ _VARIETY } = 'union'; |
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return $self; |
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} |
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sub validate_instance { |
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my ($self, $infoset) = @_; |
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$self->SUPER::validate_instance($infoset) |
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|| return; |
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my $value = $infoset->{ text }; |
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my ($newval, @errors); |
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my $members = $self->{ memberTypes } |
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|| return $self->error('union has no memberTypes'); |
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foreach my $member (@$members) { |
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$newval = $member->instance($value); |
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if ($newval) { |
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$infoset->{ value } = $newval; |
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return 1; |
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} |
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push(@errors, $member->name() . ': ' . $member->error()); |
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} |
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return $self->error("invalid union: ", join(', ', @errors)); |
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} |
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1; |
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__END__ |