/[webpac2]/trunk/lib/WebPAC/Normalize.pm
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Revision 340 - (hide annotations)
Mon Jan 2 10:58:26 2006 UTC (17 years, 1 month ago) by dpavlin
File size: 16945 byte(s)
 r349@llin:  dpavlin | 2006-01-02 12:02:07 +0100
 fixed s999 fields

1 dpavlin 10 package WebPAC::Normalize;
2    
3     use warnings;
4     use strict;
5 dpavlin 29 use base 'WebPAC::Common';
6 dpavlin 13 use Data::Dumper;
7 dpavlin 10
8     =head1 NAME
9    
10 dpavlin 15 WebPAC::Normalize - data mungling for normalisation
11 dpavlin 10
12     =head1 VERSION
13    
14 dpavlin 317 Version 0.08
15 dpavlin 10
16     =cut
17    
18 dpavlin 317 our $VERSION = '0.08';
19 dpavlin 10
20     =head1 SYNOPSIS
21    
22 dpavlin 15 This package contains code that mungle data to produce normalized format.
23 dpavlin 10
24 dpavlin 15 It contains several assumptions:
25    
26     =over
27    
28     =item *
29    
30     format of fields is defined using C<v123^a> notation for repeatable fields
31     or C<s123^a> for single (or first) value, where C<123> is field number and
32     C<a> is subfield.
33    
34     =item *
35    
36     source data records (C<$rec>) have unique identifiers in field C<000>
37    
38     =item *
39    
40     optional C<eval{length('v123^a') == 3}> tag at B<beginning of format> will be
41     perl code that is evaluated before producing output (value of field will be
42     interpolated before that)
43    
44     =item *
45    
46     optional C<filter{filter_name}> at B<begining of format> will apply perl
47     code defined as code ref on format after field substitution to producing
48     output
49    
50 dpavlin 260 There is one built-in filter called C<regex> which can be use like this:
51    
52     filter{regex(s/foo/bar/)}
53    
54 dpavlin 15 =item *
55    
56     optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>.
57    
58     =item *
59    
60     at end, optional C<format>s rules are resolved. Format rules are similar to
61     C<sprintf> and can also contain C<lookup{...}> which is performed after
62     values are inserted in format.
63    
64     =back
65    
66     This also describes order in which transformations are applied (eval,
67     filter, lookup, format) which is important to undestand when deciding how to
68     solve your data mungling and normalisation process.
69    
70    
71    
72    
73 dpavlin 10 =head1 FUNCTIONS
74    
75 dpavlin 13 =head2 new
76 dpavlin 10
77 dpavlin 13 Create new normalisation object
78    
79     my $n = new WebPAC::Normalize::Something(
80 dpavlin 15 filter => {
81     'filter_name_1' => sub {
82     # filter code
83     return length($_);
84     }, ...
85     },
86 dpavlin 29 db => $db_obj,
87 dpavlin 13 lookup_regex => $lookup->regex,
88 dpavlin 31 lookup => $lookup_obj,
89 dpavlin 219 prefix => 'foobar',
90 dpavlin 13 );
91    
92 dpavlin 15 Parametar C<filter> defines user supplied snippets of perl code which can
93     be use with C<filter{...}> notation.
94    
95 dpavlin 219 C<prefix> is used to form filename for database record (to support multiple
96     source files which are joined in one database).
97    
98 dpavlin 13 Recommended parametar C<lookup_regex> is used to enable parsing of lookups
99 dpavlin 31 in structures. If you pass this parametar, you must also pass C<lookup>
100     which is C<WebPAC::Lookup> object.
101 dpavlin 13
102 dpavlin 10 =cut
103    
104 dpavlin 13 sub new {
105     my $class = shift;
106     my $self = {@_};
107     bless($self, $class);
108    
109 dpavlin 31 my $r = $self->{'lookup_regex'} ? 1 : 0;
110     my $l = $self->{'lookup'} ? 1 : 0;
111    
112     my $log = $self->_get_logger();
113    
114     # those two must be in pair
115     if ( ($r & $l) != ($r || $l) ) {
116     my $log = $self->_get_logger();
117     $log->logdie("lookup_regex and lookup must be in pair");
118     }
119    
120     $log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup'));
121    
122 dpavlin 219 $log->warn("no prefix defined. please check that!") unless ($self->{'prefix'});
123    
124 dpavlin 252 $log->debug("using lookup regex: ", $self->{lookup_regex}) if ($r && $l);
125    
126 dpavlin 295 if (! $self->{filter} || ! $self->{filter}->{regex}) {
127 dpavlin 260 $log->debug("adding built-in filter regex");
128     $self->{filter}->{regex} = sub {
129     my ($val, $regex) = @_;
130     eval "\$val =~ $regex";
131     return $val;
132     };
133     }
134    
135 dpavlin 13 $self ? return $self : return undef;
136 dpavlin 10 }
137    
138 dpavlin 13
139     =head2 data_structure
140    
141     Create in-memory data structure which represents normalized layout from
142     C<conf/normalize/*.xml>.
143    
144     This structures are used to produce output.
145    
146 dpavlin 70 my $ds = $webpac->data_structure($rec);
147 dpavlin 13
148     =cut
149    
150     sub data_structure {
151     my $self = shift;
152    
153     my $log = $self->_get_logger();
154    
155     my $rec = shift;
156     $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);
157    
158 dpavlin 125 $log->debug("data_structure rec = ", sub { Dumper($rec) });
159    
160 dpavlin 312 $log->logdie("need unique ID (mfn) in field 000 of record " . Dumper($rec) ) unless (defined($rec->{'000'}));
161 dpavlin 125
162 dpavlin 219 my $id = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!");
163 dpavlin 125
164 dpavlin 13 my $cache_file;
165    
166 dpavlin 18 if ($self->{'db'}) {
167 dpavlin 219 my $ds = $self->{'db'}->load_ds( id => $id, prefix => $self->{prefix} );
168 dpavlin 70 $log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) });
169     return $ds if ($ds);
170 dpavlin 29 $log->debug("cache miss, creating");
171 dpavlin 13 }
172    
173     my @sorted_tags;
174     if ($self->{tags_by_order}) {
175     @sorted_tags = @{$self->{tags_by_order}};
176     } else {
177     @sorted_tags = sort { $self->_sort_by_order } keys %{$self->{'import_xml'}->{'indexer'}};
178     $self->{tags_by_order} = \@sorted_tags;
179     }
180    
181 dpavlin 70 my $ds;
182 dpavlin 13
183     $log->debug("tags: ",sub { join(", ",@sorted_tags) });
184    
185     foreach my $field (@sorted_tags) {
186    
187     my $row;
188    
189     #print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}});
190    
191     foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) {
192 dpavlin 38 my $format;
193 dpavlin 13
194 dpavlin 38 $log->logdie("expected tag HASH and got $tag") unless (ref($tag) eq 'HASH');
195     $format = $tag->{'value'} || $tag->{'content'};
196    
197 dpavlin 13 $log->debug("format: $format");
198    
199     my @v;
200     if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) {
201     @v = $self->fill_in_to_arr($rec,$format);
202     } else {
203     @v = $self->parse_to_arr($rec,$format);
204     }
205     next if (! @v);
206    
207     if ($tag->{'sort'}) {
208     @v = $self->sort_arr(@v);
209     }
210    
211     # use format?
212     if ($tag->{'format_name'}) {
213     @v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v;
214     }
215    
216     # delimiter will join repeatable fields
217     if ($tag->{'delimiter'}) {
218     @v = ( join($tag->{'delimiter'}, @v) );
219     }
220    
221     # default types
222 dpavlin 74 my @types = qw(display search);
223 dpavlin 13 # override by type attribute
224     @types = ( $tag->{'type'} ) if ($tag->{'type'});
225    
226     foreach my $type (@types) {
227     # append to previous line?
228 dpavlin 252 $log->debug("type: $type ",sub { join(" ",@v) }, " ", $row->{'append'} || 'no append');
229 dpavlin 13 if ($tag->{'append'}) {
230    
231     # I will delimit appended part with
232     # delimiter (or ,)
233     my $d = $tag->{'delimiter'};
234     # default delimiter
235     $d ||= " ";
236    
237     my $last = pop @{$row->{$type}};
238     $d = "" if (! $last);
239     $last .= $d . join($d, @v);
240     push @{$row->{$type}}, $last;
241    
242     } else {
243     push @{$row->{$type}}, @v;
244     }
245     }
246    
247    
248     }
249    
250     if ($row) {
251     $row->{'tag'} = $field;
252    
253     # TODO: name_sigular, name_plural
254     my $name = $self->{'import_xml'}->{'indexer'}->{$field}->{'name'};
255 dpavlin 70 my $row_name = $name ? $self->_x($name) : $field;
256 dpavlin 13
257     # post-sort all values in field
258     if ($self->{'import_xml'}->{'indexer'}->{$field}->{'sort'}) {
259     $log->warn("sort at field tag not implemented");
260     }
261    
262 dpavlin 70 $ds->{$row_name} = $row;
263 dpavlin 13
264     $log->debug("row $field: ",sub { Dumper($row) });
265     }
266    
267     }
268    
269 dpavlin 22 $self->{'db'}->save_ds(
270 dpavlin 219 id => $id,
271 dpavlin 70 ds => $ds,
272 dpavlin 219 prefix => $self->{prefix},
273 dpavlin 18 ) if ($self->{'db'});
274 dpavlin 13
275 dpavlin 70 $log->debug("ds: ", sub { Dumper($ds) });
276 dpavlin 29
277 dpavlin 70 $log->logconfess("data structure returned is not array any more!") if wantarray;
278 dpavlin 13
279 dpavlin 70 return $ds;
280    
281 dpavlin 13 }
282    
283     =head2 parse
284    
285     Perform smart parsing of string, skipping delimiters for fields which aren't
286     defined. It can also eval code in format starting with C<eval{...}> and
287     return output or nothing depending on eval code.
288    
289     my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i);
290    
291 dpavlin 260 Filters are implemented here. While simple form of filters looks like this:
292    
293     filter{name_of_filter}
294    
295     but, filters can also have variable number of parametars like this:
296    
297     filter{name_of_filter(param,param,param)}
298    
299 dpavlin 13 =cut
300    
301 dpavlin 261 my $warn_once;
302    
303 dpavlin 13 sub parse {
304     my $self = shift;
305    
306     my ($rec, $format_utf8, $i) = @_;
307    
308     return if (! $format_utf8);
309    
310     my $log = $self->_get_logger();
311    
312     $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);
313    
314     $i = 0 if (! $i);
315    
316     my $format = $self->_x($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'});
317    
318     my @out;
319    
320 dpavlin 340 $log->debug("format: $format [$i]");
321 dpavlin 13
322     my $eval_code;
323     # remove eval{...} from beginning
324     $eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s);
325    
326     my $filter_name;
327     # remove filter{...} from beginning
328     $filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s);
329    
330 dpavlin 317 # did we found any (att all) field from format in row?
331 dpavlin 340 my $found_any;
332 dpavlin 317 # prefix before first field which we preserve it $found_any
333 dpavlin 13 my $prefix;
334    
335 dpavlin 317 my $f_step = 1;
336    
337 dpavlin 13 while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) {
338    
339     my $del = $1 || '';
340 dpavlin 317 $prefix = $del if ($f_step == 1);
341 dpavlin 13
342 dpavlin 340 my $fld_type = lc($2);
343    
344 dpavlin 13 # repeatable index
345     my $r = $i;
346 dpavlin 340 if ($fld_type eq 's') {
347     if ($found_any->{'v'}) {
348     $r = 0;
349     } else {
350     return;
351     }
352     }
353 dpavlin 13
354     my $found = 0;
355     my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found);
356    
357     if ($found) {
358 dpavlin 340 $found_any->{$fld_type} += $found;
359 dpavlin 317
360     # we will skip delimiter before first occurence of field!
361     push @out, $del unless($found_any == 1);
362 dpavlin 13 push @out, $tmp;
363     }
364 dpavlin 317 $f_step++;
365 dpavlin 13 }
366    
367 dpavlin 340 # test if any fields found?
368     return if (! $found_any->{'v'} && ! $found_any->{'s'});
369 dpavlin 13
370     my $out = join('',@out);
371    
372     if ($out) {
373     # add rest of format (suffix)
374     $out .= $format;
375    
376     # add prefix if not there
377     $out = $prefix . $out if ($out !~ m/^\Q$prefix\E/);
378    
379     $log->debug("result: $out");
380     }
381    
382     if ($eval_code) {
383     my $eval = $self->fill_in($rec,$eval_code,$i) || return;
384     $log->debug("about to eval{$eval} format: $out");
385     return if (! $self->_eval($eval));
386     }
387    
388 dpavlin 260 if ($filter_name) {
389     my @filter_args;
390     if ($filter_name =~ s/(\w+)\((.*)\)/$1/) {
391     @filter_args = split(/,/, $2);
392     }
393     if ($self->{'filter'}->{$filter_name}) {
394     $log->debug("about to filter{$filter_name} format: $out with arguments: ", join(",", @filter_args));
395     unshift @filter_args, $out;
396     $out = $self->{'filter'}->{$filter_name}->(@filter_args);
397     return unless(defined($out));
398     $log->debug("filter result: $out");
399 dpavlin 261 } elsif (! $warn_once->{$filter_name}) {
400 dpavlin 260 $log->warn("trying to use undefined filter $filter_name");
401 dpavlin 261 $warn_once->{$filter_name}++;
402 dpavlin 260 }
403 dpavlin 13 }
404    
405     return $out;
406     }
407    
408     =head2 parse_to_arr
409    
410     Similar to C<parse>, but returns array of all repeatable fields
411    
412     my @arr = $webpac->parse_to_arr($rec,'v250^a');
413    
414     =cut
415    
416     sub parse_to_arr {
417     my $self = shift;
418    
419     my ($rec, $format_utf8) = @_;
420    
421     my $log = $self->_get_logger();
422    
423     $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);
424     return if (! $format_utf8);
425    
426     my $i = 0;
427     my @arr;
428    
429     while (my $v = $self->parse($rec,$format_utf8,$i++)) {
430     push @arr, $v;
431     }
432    
433     $log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr);
434    
435     return @arr;
436     }
437    
438 dpavlin 15
439     =head2 fill_in
440    
441     Workhourse of all: takes record from in-memory structure of database and
442     strings with placeholders and returns string or array of with substituted
443     values from record.
444    
445     my $text = $webpac->fill_in($rec,'v250^a');
446    
447     Optional argument is ordinal number for repeatable fields. By default,
448     it's assume to be first repeatable field (fields are perl array, so first
449     element is 0).
450     Following example will read second value from repeatable field.
451    
452     my $text = $webpac->fill_in($rec,'Title: v250^a',1);
453    
454     This function B<does not> perform parsing of format to inteligenty skip
455     delimiters before fields which aren't used.
456    
457     This method will automatically decode UTF-8 string to local code page
458     if needed.
459    
460     =cut
461    
462     sub fill_in {
463     my $self = shift;
464    
465     my $log = $self->_get_logger();
466    
467     my $rec = shift || $log->logconfess("need data record");
468     my $format = shift || $log->logconfess("need format to parse");
469     # iteration (for repeatable fields)
470     my $i = shift || 0;
471    
472     $log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999));
473    
474     # FIXME remove for speedup?
475     $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);
476    
477     if (utf8::is_utf8($format)) {
478     $format = $self->_x($format);
479     }
480    
481     my $found = 0;
482 dpavlin 333 my $just_single = 1;
483 dpavlin 15
484     my $eval_code;
485     # remove eval{...} from beginning
486     $eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s);
487    
488     my $filter_name;
489     # remove filter{...} from beginning
490     $filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s);
491    
492     # do actual replacement of placeholders
493     # repeatable fields
494 dpavlin 333 if ($format =~ s/v(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,$i,\$found)/ges) {
495     $just_single = 0;
496     }
497    
498 dpavlin 15 # non-repeatable fields
499 dpavlin 333 if ($format =~ s/s(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,0,\$found)/ges) {
500     return if ($i > 0 && $just_single);
501     }
502 dpavlin 15
503     if ($found) {
504     $log->debug("format: $format");
505     if ($eval_code) {
506     my $eval = $self->fill_in($rec,$eval_code,$i);
507     return if (! $self->_eval($eval));
508     }
509     if ($filter_name && $self->{'filter'}->{$filter_name}) {
510     $log->debug("filter '$filter_name' for $format");
511     $format = $self->{'filter'}->{$filter_name}->($format);
512     return unless(defined($format));
513     $log->debug("filter result: $format");
514     }
515     # do we have lookups?
516     if ($self->{'lookup'}) {
517 dpavlin 31 if ($self->{'lookup'}->can('lookup')) {
518 dpavlin 252 my @lookup = $self->{lookup}->lookup($format);
519 dpavlin 253 $log->debug("lookup $format", join(", ", @lookup));
520 dpavlin 252 return @lookup;
521 dpavlin 31 } else {
522     $log->warn("Have lookup object but can't invoke lookup method");
523     }
524 dpavlin 15 } else {
525     return $format;
526     }
527     } else {
528     return;
529     }
530     }
531    
532    
533 dpavlin 13 =head2 fill_in_to_arr
534    
535     Similar to C<fill_in>, but returns array of all repeatable fields. Usable
536     for fields which have lookups, so they shouldn't be parsed but rather
537     C<fill_id>ed.
538    
539     my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]');
540    
541     =cut
542    
543     sub fill_in_to_arr {
544     my $self = shift;
545    
546     my ($rec, $format_utf8) = @_;
547    
548     my $log = $self->_get_logger();
549    
550     $log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o);
551     return if (! $format_utf8);
552    
553     my $i = 0;
554     my @arr;
555    
556     while (my @v = $self->fill_in($rec,$format_utf8,$i++)) {
557     push @arr, @v;
558     }
559    
560     $log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr);
561    
562     return @arr;
563     }
564    
565 dpavlin 15
566     =head2 get_data
567    
568     Returns value from record.
569    
570     my $text = $self->get_data(\$rec,$f,$sf,$i,\$found);
571    
572     Arguments are:
573     record reference C<$rec>,
574     field C<$f>,
575     optional subfiled C<$sf>,
576     index for repeatable values C<$i>.
577    
578     Optinal variable C<$found> will be incremeted if there
579     is field.
580    
581     Returns value or empty string.
582    
583     =cut
584    
585     sub get_data {
586     my $self = shift;
587    
588     my ($rec,$f,$sf,$i,$found) = @_;
589    
590     if ($$rec->{$f}) {
591     return '' if (! $$rec->{$f}->[$i]);
592     no strict 'refs';
593     if ($sf && $$rec->{$f}->[$i]->{$sf}) {
594     $$found++ if (defined($$found));
595     return $$rec->{$f}->[$i]->{$sf};
596 dpavlin 64 } elsif (! $sf && $$rec->{$f}->[$i]) {
597 dpavlin 15 $$found++ if (defined($$found));
598     # it still might have subfield, just
599     # not specified, so we'll dump all
600     if ($$rec->{$f}->[$i] =~ /HASH/o) {
601     my $out;
602     foreach my $k (keys %{$$rec->{$f}->[$i]}) {
603     $out .= $$rec->{$f}->[$i]->{$k}." ";
604     }
605     return $out;
606     } else {
607     return $$rec->{$f}->[$i];
608     }
609 dpavlin 64 } else {
610     return '';
611 dpavlin 15 }
612     } else {
613     return '';
614     }
615     }
616    
617    
618     =head2 apply_format
619    
620     Apply format specified in tag with C<format_name="name"> and
621     C<format_delimiter=";;">.
622    
623     my $text = $webpac->apply_format($format_name,$format_delimiter,$data);
624    
625     Formats can contain C<lookup{...}> if you need them.
626    
627     =cut
628    
629     sub apply_format {
630     my $self = shift;
631    
632     my ($name,$delimiter,$data) = @_;
633    
634     my $log = $self->_get_logger();
635    
636     if (! $self->{'import_xml'}->{'format'}->{$name}) {
637     $log->warn("<format name=\"$name\"> is not defined in ",$self->{'import_xml_file'});
638     return $data;
639     }
640    
641     $log->warn("no delimiter for format $name") if (! $delimiter);
642    
643     my $format = $self->_x($self->{'import_xml'}->{'format'}->{$name}->{'content'}) || $log->logdie("can't find format '$name'");
644    
645     my @data = split(/\Q$delimiter\E/, $data);
646    
647     my $out = sprintf($format, @data);
648     $log->debug("using format $name [$format] on $data to produce: $out");
649    
650     if ($self->{'lookup_regex'} && $out =~ $self->{'lookup_regex'}) {
651 dpavlin 31 return $self->{'lookup'}->lookup($out);
652 dpavlin 15 } else {
653     return $out;
654     }
655    
656     }
657    
658 dpavlin 13 =head2 sort_arr
659    
660     Sort array ignoring case and html in data
661    
662     my @sorted = $webpac->sort_arr(@unsorted);
663    
664     =cut
665    
666     sub sort_arr {
667     my $self = shift;
668    
669     my $log = $self->_get_logger();
670    
671     # FIXME add Schwartzian Transformation?
672    
673     my @sorted = sort {
674     $a =~ s#<[^>]+/*>##;
675     $b =~ s#<[^>]+/*>##;
676     lc($b) cmp lc($a)
677     } @_;
678     $log->debug("sorted values: ",sub { join(", ",@sorted) });
679    
680     return @sorted;
681     }
682    
683    
684 dpavlin 15 =head1 INTERNAL METHODS
685    
686 dpavlin 13 =head2 _sort_by_order
687    
688     Sort xml tags data structure accoding to C<order=""> attribute.
689    
690     =cut
691    
692     sub _sort_by_order {
693     my $self = shift;
694    
695     my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} ||
696     $self->{'import_xml'}->{'indexer'}->{$a};
697     my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} ||
698     $self->{'import_xml'}->{'indexer'}->{$b};
699    
700     return $va <=> $vb;
701     }
702    
703     =head2 _x
704    
705 dpavlin 15 Convert strings from C<conf/normalize/*.xml> encoding into application
706     specific encoding (optinally specified using C<code_page> to C<new>
707     constructor).
708 dpavlin 13
709     my $text = $n->_x('normalize text string');
710    
711     This is a stub so that other modules doesn't have to implement it.
712    
713     =cut
714    
715     sub _x {
716     my $self = shift;
717     return shift;
718     }
719    
720    
721 dpavlin 10 =head1 AUTHOR
722    
723     Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >>
724    
725     =head1 COPYRIGHT & LICENSE
726    
727     Copyright 2005 Dobrica Pavlinusic, All Rights Reserved.
728    
729     This program is free software; you can redistribute it and/or modify it
730     under the same terms as Perl itself.
731    
732     =cut
733    
734 dpavlin 209 1; # End of WebPAC::Normalize

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