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package Badger::Data::Facet::Text::Whitespace; |
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use Badger::Data::Facet::Class |
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version => 0.01, |
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type => 'text', |
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args => 'whitespace', |
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constant => { |
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PRESERVE => 0, |
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FOLD => 1, |
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COLLAPSE => 2, |
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}; |
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our $ACTION = { |
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preserve => PRESERVE, |
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fold => FOLD, |
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collapse => COLLAPSE, |
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}; |
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sub init { |
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my ($self, $config) = @_; |
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$self->SUPER::init($config) |
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|| return; |
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# option must have an entry in $ACCEPT which we store in $self->{ action } |
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return $self->error_msg( whitespace => $self->{ whitespace }, join(', ', keys %$ACTION) ) |
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unless defined ($self->{ action } = $ACTION->{ $self->{ whitespace } }); |
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return $self; |
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} |
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sub validate { |
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my ($self, $text, $type) = @_; |
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my $action = $self->{ action } # do nothing for PRESERVE |
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|| return $text; |
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for ($$text) { |
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s/[\r\n\t]/ /g; |
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if ($action == COLLAPSE) { |
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s/ +/ /g; |
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s/^ +//; |
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s/ +$//; |
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} |
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} |
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return $text; |
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} |
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1; |
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__END__ |