/[webpac]/trunk2/lib/WebPAC/Tree.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 455 by dpavlin, Mon Sep 20 19:13:27 2004 UTC revision 471 by dpavlin, Sun Sep 26 15:11:36 2004 UTC
# Line 5  use strict; Line 5  use strict;
5    
6  use Carp;  use Carp;
7  use Log::Log4perl qw(get_logger :levels);  use Log::Log4perl qw(get_logger :levels);
8    use YAML;
9    
10  =head1 NAME  =head1 NAME
11    
# Line 75  Returns code or C<false> if code has to Line 76  Returns code or C<false> if code has to
76    
77  Lookup value which will be called C<$v900> from now on.  Lookup value which will be called C<$v900> from now on.
78    
79   my $v900 = $t->{'lookup_v900'}->($code,$start_code);   my $v900 = $t->{'lookup_v900'}->($code);
80    
81  =item lookup_term  =item lookup_term
82    
# Line 93  Lookup mfn value, used to create hyperli Line 94  Lookup mfn value, used to create hyperli
94    
95  Returns children for next iteration of tree generation or undef.  Returns children for next iteration of tree generation or undef.
96    
97   my $next_lvl = $t->{'have_children'}->($code,$v900,$start_code);   my $next_lvl = $t->{'have_children'}->($code,$v900);
98    
99  =item have_children_at_level  =item have_children_at_level
100    
101  Returns children for next iteration and next level.  Returns children for next iteration and next level.
102    
103   my ($level,$next_lvl) = $t->{'have_children_at_level'}->($code,$v900,$start_code);   my ($level,$next_lvl) = $t->{'have_children_at_level'}->($code,$v900);
104    
105  It's safe to return undef just for next level data (C<$next_lvl> in example  It's safe to return undef just for next level data (C<$next_lvl> in example
106  above) to stop recursion.  above) to stop recursion.
# Line 155  sub new { Line 156  sub new {
156          $self->{'show_ids'} = [];          $self->{'show_ids'} = [];
157          $self->{'hide_ids'} = [];          $self->{'hide_ids'} = [];
158    
159          my $html = $self->unroll(0,'');          my $html = $self->unroll(0,());
160    
161            $log->logdie("no html generated by unroll...") unless ($html);
162    
163          my $html_file = $self->{'dir'}.'/'.$self->{'html'};          my $html_file = $self->{'dir'}.'/'.$self->{'html'};
164    
# Line 185  sub new { Line 188  sub new {
188    
189  Generate tree recursively.  Generate tree recursively.
190    
191   my $html = $tree->unroll($level,$start_code);   my $html = $tree->unroll($level,$data_arr);
192    
193  =cut  =cut
194    
195  sub unroll {  sub unroll {
196          my $self = shift;          my $self = shift;
197    
198          my ($level,$start_code) = @_;          my ($level,$data_arr) = @_;
199    
200          my $log = $self->_get_logger();          my $log = $self->_get_logger();
201    
# Line 204  sub unroll { Line 207  sub unroll {
207          my $next_level = $level + 1;          my $next_level = $level + 1;
208    
209          $log->logconfess("need level") unless (defined($level));          $log->logconfess("need level") unless (defined($level));
210          $log->logconfess("need start_code") unless (defined($start_code));          #$log->logconfess("need data_arr") unless (defined($data_arr));
211    
212          my $tree = $self->{'tree'};          my $tree = $self->{'tree'};
213    
# Line 213  sub unroll { Line 216  sub unroll {
216          # all levels passed?          # all levels passed?
217          return if (! defined($tree->[$level]));          return if (! defined($tree->[$level]));
218    
219          $log->debug("unroll level $level, start code $start_code");          $log->debug("unroll level $level");
220    
221          my $html;          my $html;
222    
223          foreach my $code ($tree->[$level]->{'code_arr'}->($start_code)) {          foreach my $code ($tree->[$level]->{'code_arr'}->($data_arr)) {
224    
225                  if ($code = $tree->[$level]->{'filter_code'}->($code)) {                  if ($code = $tree->[$level]->{'filter_code'}->($code)) {
226                                    
227                          $log->debug("# $level filter passed code $code");                          $log->debug("# $level filter passed code $code");
228    
229                          my $v900 = $tree->[$level]->{'lookup_v900'}->($code,$start_code) || $log->warn("can't lookup_v900($code,$start_code)");                          my $v900 = $tree->[$level]->{'lookup_v900'}->($code) || $log->warn("can't lookup_v900($code)") && return;
230                          $log->debug("# $level lookup_v900($code,$start_code) = $v900");                          $log->debug("# $level lookup_v900($code) = $v900");
231    
232                          my $term = $tree->[$level]->{'lookup_term'}->($code,$v900) || $log->warn("can't lookup_term($code,$v900)");                          my $term = $tree->[$level]->{'lookup_term'}->($code,$v900) || $log->warn("can't lookup_term($code,$v900)") && next;
233                          $log->debug("# $level lookup_term($code,$v900) = $term");                          $log->debug("# $level lookup_term($code,$v900) = $term");
234    
235                          my $mfn  = $tree->[$level]->{'lookup_mfn'}->($code,$v900)  || $log->warn("can't lookup_mfn($code,$v900)");                          my $mfn  = $tree->[$level]->{'lookup_mfn'}->($code,$v900)  || $log->warn("can't lookup_mfn($code,$v900)") && next;
236                          $log->debug("# $level lookup_mfn($code,$v900) = $mfn");                          $log->debug("# $level lookup_mfn($code,$v900) = $mfn");
237    
238                          $log->debug("$code -> $v900 : $term [$mfn]");                          $log->debug("$code -> $v900 : $term [$mfn]");
239    
240                          my ($link_start,$link_end) = ('','');                          my ($link_start,$link_end) = ('<a name="mfn'.$mfn.'"></a>','');
241                    
242                          my $have_children = $tree->[$level]->{'have_children'}->($code,$v900,$start_code);                          my $have_children = $tree->[$level]->{'have_children'}->($code,$v900);
243    
244                          if (! $have_children) {                          if (! $have_children) {
245                                  $log->debug("# $level doesn't have_children($code,$v900,$start_code)");                                  $log->debug("# $level doesn't have_children($code,$v900)");
246                                  ($next_level,$have_children) = $tree->[$level]->{'have_children_at_level'}->($code,$v900,$start_code) if ($tree->[$level]->{'have_children_at_level'});                                  ($next_level,$have_children) = $tree->[$level]->{'have_children_at_level'}->($code,$v900) if ($tree->[$level]->{'have_children_at_level'});
247                                  $log->debug("# $level have_children($code,$v900,$start_code) on level $next_level") if ($have_children);                                  $log->debug("# $level have_children($code,$v900) on level $next_level") if ($have_children);
248    
249                          }                          }
250    
# Line 251  sub unroll { Line 254  sub unroll {
254                          if (-e "out/$mfn_link") {                          if (-e "out/$mfn_link") {
255                                  $html .= " " x $level .                                  $html .= " " x $level .
256                                          qq{<li>${link_start}<span id="o$mfn">${term}</span>${link_end}}.                                          qq{<li>${link_start}<span id="o$mfn">${term}</span>${link_end}}.
257                                          qq{&nbsp;<a href="$mfn_link">&raquo;</a></li>\n};                                          qq{&nbsp;<a href="$mfn_link" onClick="javascript:return popup(this);">&raquo;</a></li>\n};
258                          } else {                          } else {
259                                  $log->warn("file 'out/$mfn_link' doesn't exist, skipping");                                  $log->warn("file 'out/$mfn_link' doesn't exist, skipping");
260                          }                          }

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