| 1 |
joko |
1.1 |
## ------------------------------------------------------------------------ |
| 2 |
|
|
## $Id$ |
| 3 |
|
|
## ------------------------------------------------------------------------ |
| 4 |
|
|
## $Log$ |
| 5 |
|
|
## ------------------------------------------------------------------------ |
| 6 |
|
|
|
| 7 |
|
|
|
| 8 |
|
|
package Data::Filter; |
| 9 |
|
|
|
| 10 |
|
|
use strict; |
| 11 |
|
|
use warnings; |
| 12 |
|
|
|
| 13 |
|
|
use base 'DesignPattern::Object::Logger'; |
| 14 |
|
|
|
| 15 |
|
|
|
| 16 |
|
|
use Data::Dumper; |
| 17 |
|
|
|
| 18 |
|
|
use Regexp::Group; |
| 19 |
|
|
use libp qw( mkObject ); |
| 20 |
|
|
use Data::Compare::Struct qw( isEmpty ); |
| 21 |
|
|
|
| 22 |
|
|
# ------------ common perl object constructor ------------ |
| 23 |
|
|
sub new { |
| 24 |
|
|
my $invocant = shift; |
| 25 |
|
|
my $class = ref($invocant) || $invocant; |
| 26 |
|
|
my @args = (); |
| 27 |
|
|
@_ && (@args = @_); |
| 28 |
|
|
#$logger->debug( __PACKAGE__ . "->new( @args )" ); # this is not "common"! |
| 29 |
|
|
my $self = { @_ }; |
| 30 |
|
|
bless $self, $class; |
| 31 |
|
|
$self->{caller} = caller; |
| 32 |
|
|
|
| 33 |
|
|
#print Dumper(caller(2)); |
| 34 |
|
|
#exit; |
| 35 |
|
|
|
| 36 |
|
|
$self->_init(); |
| 37 |
|
|
return $self; |
| 38 |
|
|
} |
| 39 |
|
|
|
| 40 |
|
|
sub _init { |
| 41 |
|
|
my $self = shift; |
| 42 |
|
|
|
| 43 |
|
|
# try to load filter-declaration from configuration scope inside perl-module (yes - it's already abstracted out there!) |
| 44 |
|
|
$self->{declaration} = mkObject($self->{module}); |
| 45 |
|
|
#print Dumper($self->{declaration}); |
| 46 |
|
|
|
| 47 |
|
|
|
| 48 |
|
|
# the regexp-object which does the hard work for us ;-) |
| 49 |
|
|
$self->{regexp} = Regexp::Group->new( |
| 50 |
|
|
'data' => \$self->{data}, # reference ... |
| 51 |
|
|
#'data' => $self->{data}, # ... or not? |
| 52 |
|
|
'metadata' => $self->{declaration}->metadata(), |
| 53 |
|
|
'patterns' => $self->{declaration}->patterns(), |
| 54 |
|
|
'coderefs' => $self->{declaration}->coderefs(), |
| 55 |
|
|
'verbose' => 1, |
| 56 |
|
|
); |
| 57 |
|
|
|
| 58 |
|
|
} |
| 59 |
|
|
|
| 60 |
|
|
sub run { |
| 61 |
|
|
my $self = shift; |
| 62 |
|
|
my $steps = shift; |
| 63 |
|
|
my $coderef = shift; |
| 64 |
|
|
|
| 65 |
|
|
#print "cb: $coderef", "\n"; |
| 66 |
|
|
|
| 67 |
|
|
my $result = $self->{regexp}->scan($steps, $coderef); |
| 68 |
|
|
|
| 69 |
|
|
# configure tracing |
| 70 |
|
|
# respects additional trace-options passed to _trace-method |
| 71 |
|
|
$self->{TRACE_OPTIONS} = 1; |
| 72 |
|
|
# disables _any_ tracing - even if sub-conditions evaluate to true values |
| 73 |
|
|
$self->{TRACE_DISABLED} = 0; |
| 74 |
|
|
|
| 75 |
|
|
# trace the result |
| 76 |
|
|
# cute: ;-) |
| 77 |
|
|
#$self->trace('matches after Regexp::Group->scan', $self->{regexp}->getMatches(), 1, undef, { tag => '', exit => 0 }); |
| 78 |
|
|
#$self->trace('results after Regexp::Group->scan', $self->{regexp}->getResults(), 1, undef, { tag => '', exit => 0 }); |
| 79 |
|
|
|
| 80 |
|
|
return $result; |
| 81 |
|
|
} |
| 82 |
|
|
|
| 83 |
|
|
sub index { |
| 84 |
|
|
my $self = shift; |
| 85 |
|
|
my $steps = shift; |
| 86 |
|
|
|
| 87 |
|
|
# configure tracing |
| 88 |
|
|
# respects additional trace-options passed to _trace-method |
| 89 |
|
|
$self->{TRACE_OPTIONS} = 1; |
| 90 |
|
|
# disables _any_ tracing - even if sub-conditions evaluate to true values |
| 91 |
|
|
$self->{TRACE_DISABLED} = 0; |
| 92 |
|
|
|
| 93 |
|
|
# trace the result |
| 94 |
|
|
# cute: ;-) |
| 95 |
|
|
#$self->trace('matches after Regexp::Group->scan', $self->{regexp}->getMatches(), 1, undef, { tag => '', exit => 0 }); |
| 96 |
|
|
#$self->trace('results after Regexp::Group->scan', $self->{regexp}->getResults(), 1, undef, { tag => '', exit => 0 }); |
| 97 |
|
|
|
| 98 |
|
|
my $result = $self->{regexp}->scan($steps); |
| 99 |
|
|
|
| 100 |
|
|
|
| 101 |
|
|
return $result; |
| 102 |
|
|
} |
| 103 |
|
|
|
| 104 |
|
|
sub continue { |
| 105 |
|
|
my $self = shift; |
| 106 |
|
|
my $scankey = shift; |
| 107 |
|
|
my $result = $self->{regexp}->continue($scankey); |
| 108 |
|
|
} |
| 109 |
|
|
|
| 110 |
|
|
sub getResults { |
| 111 |
|
|
my $self = shift; |
| 112 |
|
|
return $self->{regexp}->{result}; |
| 113 |
|
|
} |
| 114 |
|
|
|
| 115 |
|
|
sub getResultCount { |
| 116 |
|
|
my $self = shift; |
| 117 |
|
|
#my $count = ($#{$self->{regexp}->{result}} == -1 ? 0 : $#{$self->{regexp}->{result}}); |
| 118 |
|
|
#$count++; |
| 119 |
|
|
|
| 120 |
|
|
|
| 121 |
|
|
my $matches = $self->{regexp}->getMatches(); |
| 122 |
|
|
return if isEmpty($matches); |
| 123 |
|
|
|
| 124 |
|
|
my $count = $#{$matches}; |
| 125 |
|
|
$count++; |
| 126 |
|
|
return $count; |
| 127 |
|
|
} |
| 128 |
|
|
|
| 129 |
|
|
1; |
Parent Directory
| 
Revision Log
