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## ------------------------------------------------------------------------ |
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## $Id: Regexp.pm,v 1.1 2002/12/23 04:22:22 joko Exp $ |
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joko |
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## ------------------------------------------------------------------------ |
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## $Log: Regexp.pm,v $ |
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## Revision 1.1 2002/12/23 04:22:22 joko |
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## + refactored from Data::Filter |
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## |
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## Revision 1.1 2002/12/22 14:19:17 joko |
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## + initial check-in |
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## |
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## ------------------------------------------------------------------------ |
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package Data::Query::Filter::Regexp; |
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use strict; |
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use warnings; |
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use base 'DesignPattern::Object::Logger'; |
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use Data::Dumper; |
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use Regexp::Group; |
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use DesignPattern::Object; |
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use Data::Compare::Struct qw( isEmpty ); |
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# ------------ common perl object constructor ------------ |
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sub new { |
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my $invocant = shift; |
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my $class = ref($invocant) || $invocant; |
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my @args = (); |
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@_ && (@args = @_); |
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#$logger->debug( __PACKAGE__ . "->new( @args )" ); # this is not "common"! |
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my $self = { @_ }; |
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bless $self, $class; |
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$self->{caller} = caller; |
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#print Dumper(caller(2)); |
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#exit; |
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$self->_init(); |
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return $self; |
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} |
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sub _init { |
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my $self = shift; |
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# try to load filter-declaration from configuration scope inside perl-module (yes - it's already abstracted out there!) |
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$self->{declaration} = DesignPattern::Object->fromPackage($self->{module}); |
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#print Dumper($self->{declaration}); |
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# the regexp-object which does the hard work for us ;-) |
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$self->{regexp} = Regexp::Group->new( |
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'data' => \$self->{data}, # reference ... |
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#'data' => $self->{data}, # ... or not? |
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'metadata' => $self->{declaration}->metadata(), |
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'patterns' => $self->{declaration}->patterns(), |
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'coderefs' => $self->{declaration}->coderefs(), |
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'verbose' => 1, |
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); |
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} |
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sub run { |
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my $self = shift; |
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my $steps = shift; |
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my $coderef = shift; |
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#print "cb: $coderef", "\n"; |
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my $result = $self->{regexp}->scan($steps, $coderef); |
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# configure tracing |
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# respects additional trace-options passed to _trace-method |
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$self->{TRACE_OPTIONS} = 1; |
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# disables _any_ tracing - even if sub-conditions evaluate to true values |
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$self->{TRACE_DISABLED} = 0; |
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# trace the result |
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# cute: ;-) |
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#$self->trace('matches after Regexp::Group->scan', $self->{regexp}->getMatches(), 1, undef, { tag => '', exit => 0 }); |
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#$self->trace('results after Regexp::Group->scan', $self->{regexp}->getResults(), 1, undef, { tag => '', exit => 0 }); |
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return $result; |
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} |
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sub index { |
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my $self = shift; |
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my $steps = shift; |
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# configure tracing |
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# respects additional trace-options passed to _trace-method |
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$self->{TRACE_OPTIONS} = 1; |
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# disables _any_ tracing - even if sub-conditions evaluate to true values |
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$self->{TRACE_DISABLED} = 0; |
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# trace the result |
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# cute: ;-) |
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#$self->trace('matches after Regexp::Group->scan', $self->{regexp}->getMatches(), 1, undef, { tag => '', exit => 0 }); |
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#$self->trace('results after Regexp::Group->scan', $self->{regexp}->getResults(), 1, undef, { tag => '', exit => 0 }); |
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my $result = $self->{regexp}->scan($steps); |
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return $result; |
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} |
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sub continue { |
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my $self = shift; |
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my $scankey = shift; |
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my $result = $self->{regexp}->continue($scankey); |
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} |
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sub getResults { |
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my $self = shift; |
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return $self->{regexp}->{result}; |
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} |
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sub getResultCount { |
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my $self = shift; |
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#my $count = ($#{$self->{regexp}->{result}} == -1 ? 0 : $#{$self->{regexp}->{result}}); |
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#$count++; |
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my $matches = $self->{regexp}->getMatches(); |
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return if isEmpty($matches); |
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my $count = $#{$matches}; |
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$count++; |
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return $count; |
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} |
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