/[cvs]/nfo/perl/libs/Data/Mungle/Transform/Deep.pm
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revision 1.6 by jonen, Mon Dec 23 11:27:53 2002 UTC revision 1.7 by joko, Sun Jan 19 03:26:59 2003 UTC
# Line 1  Line 1 
1  ##############################################  ## ---------------------------------------------------------------------------
2  #  ##  $Id$
3  #  $Id$  ## ---------------------------------------------------------------------------
4  #  ##  $Log$
5  #  $Log$  ##  Revision 1.7  2003/01/19 03:26:59  joko
6  #  Revision 1.6  2002/12/23 11:27:53  jonen  ##  + added 'sub deep_copy'  -  refactored from libp
7  #  + changed behavior WATCH!  ##  + add 'sub merge'  -  exported from CPAN's 'Hash::Merge'
8  #  ##
9  #  Revision 1.5  2002/12/16 19:57:54  joko  ##  Revision 1.6  2002/12/23 11:27:53  jonen
10  #  + option 'init'  ##  + changed behavior WATCH!
11  #  ##
12  #  Revision 1.4  2002/12/05 13:56:49  joko  ##  Revision 1.5  2002/12/16 19:57:54  joko
13  #  - var_deref  ##  + option 'init'
14  #  + expand - more sophisticated dereferencing with callbacks using Iterate  ##
15  #  ##  Revision 1.4  2002/12/05 13:56:49  joko
16  #  Revision 1.3  2002/12/03 05:34:55  joko  ##  - var_deref
17  #  + bugfix: now utilizing var_utf2iso from Data::Transform::Encode  ##  + expand - more sophisticated dereferencing with callbacks using Iterate
18  #  ##
19  #  Revision 1.2  2002/12/01 04:44:07  joko  ##  Revision 1.3  2002/12/03 05:34:55  joko
20  #  + code from Data::Transform::OO  ##  + bugfix: now utilizing var_utf2iso from Data::Transform::Encode
21  #  ##
22  #  Revision 1.1  2002/11/29 04:49:20  joko  ##  Revision 1.2  2002/12/01 04:44:07  joko
23  #  + initial check-in  ##  + code from Data::Transform::OO
24  #  ##
25  #  Revision 1.1  2002/10/10 03:26:00  cvsjoko  ##  Revision 1.1  2002/11/29 04:49:20  joko
26  #  + new  ##  + initial check-in
27  #  ##
28  ##############################################  ##  Revision 1.1  2002/10/10 03:26:00  cvsjoko
29    ##  + new
30    ## ---------------------------------------------------------------------------
31    
32    
33  package Data::Transform::Deep;  package Data::Transform::Deep;
# Line 42  our @EXPORT_OK = qw( Line 44  our @EXPORT_OK = qw(
44    &hash2object    &hash2object
45    &refexpr2perlref    &refexpr2perlref
46    &expand    &expand
47      &deep_copy
48      &merge
49  );  );
50  #  &var_deref  #  &var_deref
51  #  &getStructSlotByStringyAddress  #  &getStructSlotByStringyAddress
# Line 49  our @EXPORT_OK = qw( Line 53  our @EXPORT_OK = qw(
53  use attributes;  use attributes;
54  use Data::Dumper;  use Data::Dumper;
55  use Data::Transform::Encode qw( var_utf2iso var2utf8 scalar2utf8 );  use Data::Transform::Encode qw( var_utf2iso var2utf8 scalar2utf8 );
56  use libp qw( deep_copy );  
57    use Hash::Merge qw( merge );
58    #use libp qw( deep_copy );
59  use Iterate;  use Iterate;
60    
61  sub var_NumericalHashToArray {  sub var_NumericalHashToArray {
# Line 316  sub hash2object_traverse_mixin { Line 322  sub hash2object_traverse_mixin {
322  #    @fields = keys %{$data} if $options->{mixin};  #    @fields = keys %{$data} if $options->{mixin};
323            
324      foreach (@fields) {      foreach (@fields) {
325        push @indexstack, $_;        my $field = $_;
326          push @indexstack, $field;
327                            
328        # determine type of object        # determine type of object
329        my $ref = ref $object->{$_};        my $ref = ref $object->{$field};
330  #      print STDERR "attrname: $_  ATTRref: $ref", "\n";  #      print STDERR "attrname: $_  ATTRref: $ref", "\n";
331        if ($ref) {        if ($ref) {
332          hash2object_traverse_mixin($object->{$_}, $data, 1, $options);          hash2object_traverse_mixin($object->{$field}, $data, 1, $options);
333        } else {        } else {
334          my $val = getStructSlotByStringyAddress($data, \@indexstack);          my $val = getStructSlotByStringyAddress($data, \@indexstack);
335          $object->{$_} = $val if defined $val;          
336    print Dumper($options);
337            my $field_target = $field;
338            if (my $pattern = $options->{pattern_strip_key}) {
339              print "pattern: $pattern", "\n";
340              $field_target =~ s/$pattern//;
341              print "field: $field_target", "\n";
342            }
343    
344            $object->{$field_target} = $val if defined $val;
345        }        }
346        pop @indexstack;        pop @indexstack;
347      }      }
# Line 455  sub refexpr2perlref_parts { Line 471  sub refexpr2perlref_parts {
471    return (join('->', @parts_capsule), \@parts_pure);    return (join('->', @parts_capsule), \@parts_pure);
472  }  }
473    
474    # ACK's go to ...
475    sub deep_copy {
476      my $this = shift;
477      if (not ref $this) {
478        $this;
479      } elsif (ref $this eq "ARRAY") {
480        [map deep_copy($_), @$this];
481      } elsif (ref $this eq "HASH") {
482        +{map { $_ => deep_copy($this->{$_}) } keys %$this};
483      } elsif (ref $this eq "CODE") {
484        $this;
485      #} else { die "deep_copy asks: what type is $this?" }
486      } else { print "deep_copy asks: what type is $this?", "\n"; }
487    }
488    
489  1;  1;

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