/[webpac2]/trunk/lib/WebPAC/Input.pm
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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revision 523 by dpavlin, Sun May 21 19:29:26 2006 UTC revision 585 by dpavlin, Wed Jul 5 19:52:45 2006 UTC
# Line 16  WebPAC::Input - read different file form Line 16  WebPAC::Input - read different file form
16    
17  =head1 VERSION  =head1 VERSION
18    
19  Version 0.05  Version 0.07
20    
21  =cut  =cut
22    
23  our $VERSION = '0.05';  our $VERSION = '0.07';
24    
25  =head1 SYNOPSIS  =head1 SYNOPSIS
26    
# Line 44  Perhaps a little code snippet. Line 44  Perhaps a little code snippet.
44      my $db = WebPAC::Input->new(      my $db = WebPAC::Input->new(
45          module => 'WebPAC::Input::ISIS',          module => 'WebPAC::Input::ISIS',
46                  config => $config,                  config => $config,
                 lookup => $lookup_obj,  
47                  low_mem => 1,                  low_mem => 1,
48      );      );
49    
# Line 64  Create new input database object. Line 63  Create new input database object.
63    
64    my $db = new WebPAC::Input(    my $db = new WebPAC::Input(
65          module => 'WebPAC::Input::MARC',          module => 'WebPAC::Input::MARC',
66          code_page => 'ISO-8859-2',          encoding => 'ISO-8859-2',
67          low_mem => 1,          low_mem => 1,
68          recode => 'char pairs',          recode => 'char pairs',
69          no_progress_bar => 1,          no_progress_bar => 1,
# Line 73  Create new input database object. Line 72  Create new input database object.
72  C<module> is low-level file format module. See L<WebPAC::Input::Isis> and  C<module> is low-level file format module. See L<WebPAC::Input::Isis> and
73  L<WebPAC::Input::MARC>.  L<WebPAC::Input::MARC>.
74    
75  Optional parametar C<code_page> specify application code page (which will be  Optional parametar C<encoding> specify application code page (which will be
76  used internally). This should probably be your terminal encoding, and by  used internally). This should probably be your terminal encoding, and by
77  default, it C<ISO-8859-2>.  default, it C<ISO-8859-2>.
78    
# Line 96  sub new { Line 95  sub new {
95    
96          my $log = $self->_get_logger;          my $log = $self->_get_logger;
97    
98            $log->logconfess("code_page argument is not suppored any more. change it to encoding") if ($self->{lookup});
99            $log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_ref") if ($self->{lookup});
100    
101          $log->logconfess("specify low-level file format module") unless ($self->{module});          $log->logconfess("specify low-level file format module") unless ($self->{module});
102          my $module = $self->{module};          my $module = $self->{module};
103          $module =~ s#::#/#g;          $module =~ s#::#/#g;
# Line 121  sub new { Line 123  sub new {
123                  $self->{init}->($self, @_);                  $self->{init}->($self, @_);
124          }          }
125    
126          $self->{'code_page'} ||= 'ISO-8859-2';          $self->{'encoding'} ||= 'ISO-8859-2';
127    
128          # running with low_mem flag? well, use DBM::Deep then.          # running with low_mem flag? well, use DBM::Deep then.
129          if ($self->{'low_mem'}) {          if ($self->{'low_mem'}) {
# Line 163  This function will read whole database i Line 165  This function will read whole database i
165          offset => 6000,          offset => 6000,
166          lookup => $lookup_obj,          lookup => $lookup_obj,
167          stats => 1,          stats => 1,
168            lookup_ref => sub {
169                    my ($k,$v) = @_;
170                    # store lookup $k => $v
171            },
172   );   );
173    
174  By default, C<code_page> is assumed to be C<852>.  By default, C<code_page> is assumed to be C<852>.
# Line 173  C<limit> is optional parametar to read j Line 179  C<limit> is optional parametar to read j
179    
180  C<stats> create optional report about usage of fields and subfields  C<stats> create optional report about usage of fields and subfields
181    
182    C<lookup_coderef> is closure to call when adding key => $value combinations to
183    lookup.
184    
185  Returns size of database, regardless of C<offset> and C<limit>  Returns size of database, regardless of C<offset> and C<limit>
186  parametars, see also C<size>.  parametars, see also C<size>.
187    
# Line 184  sub open { Line 193  sub open {
193    
194          my $log = $self->_get_logger();          my $log = $self->_get_logger();
195    
196            $log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_coderef") if ($arg->{lookup});
197            $log->logconfess("lookup_coderef must be CODE, not ",ref($arg->{lookup_coderef}))
198                    if ($arg->{lookup_coderef} && ref($arg->{lookup_coderef}) ne 'CODE');
199    
200          $log->logcroak("need path") if (! $arg->{'path'});          $log->logcroak("need path") if (! $arg->{'path'});
201          my $code_page = $arg->{'code_page'} || '852';          my $code_page = $arg->{'code_page'} || '852';
202    
# Line 194  sub open { Line 207  sub open {
207          }          }
208    
209          # create Text::Iconv object          # create Text::Iconv object
210          $self->{iconv} = Text::Iconv->new($code_page,$self->{'code_page'});          $self->{iconv} = Text::Iconv->new($code_page,$self->{'encoding'});      ## FIXME remove!
211    
212          my $filter_ref;          my $filter_ref;
213    
# Line 259  sub open { Line 272  sub open {
272          # store size for later          # store size for later
273          $self->{size} = ($to_rec - $from_rec) ? ($to_rec - $from_rec + 1) : 0;          $self->{size} = ($to_rec - $from_rec) ? ($to_rec - $from_rec + 1) : 0;
274    
275          $log->info("processing $self->{size}/$size records [$from_rec-$to_rec] convert $code_page -> $self->{code_page}", $self->{stats} ? ' [stats]' : '');          $log->info("processing $self->{size}/$size records [$from_rec-$to_rec] convert $code_page -> $self->{encoding}", $self->{stats} ? ' [stats]' : '');
276    
277          # read database          # read database
278          for (my $pos = $from_rec; $pos <= $to_rec; $pos++) {          for (my $pos = $from_rec; $pos <= $to_rec; $pos++) {
# Line 283  sub open { Line 296  sub open {
296                  }                  }
297    
298                  # create lookup                  # create lookup
299                  $self->{'lookup'}->add( $rec ) if ($rec && $self->{'lookup'});                  $arg->{'lookup_coderef'}->( $rec ) if ($rec && $arg->{'lookup_coderef'});
300    
301                  # update counters for statistics                  # update counters for statistics
302                  if ($self->{stats}) {                  if ($self->{stats}) {
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