1 |
package WebPAC::Normalize; |
2 |
|
3 |
use warnings; |
4 |
use strict; |
5 |
use blib; |
6 |
use WebPAC::Common; |
7 |
use base 'WebPAC::Common'; |
8 |
use Data::Dumper; |
9 |
|
10 |
=head1 NAME |
11 |
|
12 |
WebPAC::Normalize - data mungling for normalisation |
13 |
|
14 |
=head1 VERSION |
15 |
|
16 |
Version 0.08 |
17 |
|
18 |
=cut |
19 |
|
20 |
our $VERSION = '0.08'; |
21 |
|
22 |
=head1 SYNOPSIS |
23 |
|
24 |
This package contains code that mungle data to produce normalized format. |
25 |
|
26 |
It contains several assumptions: |
27 |
|
28 |
=over |
29 |
|
30 |
=item * |
31 |
|
32 |
format of fields is defined using C<v123^a> notation for repeatable fields |
33 |
or C<s123^a> for single (or first) value, where C<123> is field number and |
34 |
C<a> is subfield. |
35 |
|
36 |
=item * |
37 |
|
38 |
source data records (C<$rec>) have unique identifiers in field C<000> |
39 |
|
40 |
=item * |
41 |
|
42 |
optional C<eval{length('v123^a') == 3}> tag at B<beginning of format> will be |
43 |
perl code that is evaluated before producing output (value of field will be |
44 |
interpolated before that) |
45 |
|
46 |
=item * |
47 |
|
48 |
optional C<filter{filter_name}> at B<begining of format> will apply perl |
49 |
code defined as code ref on format after field substitution to producing |
50 |
output |
51 |
|
52 |
There is one built-in filter called C<regex> which can be use like this: |
53 |
|
54 |
filter{regex(s/foo/bar/)} |
55 |
|
56 |
=item * |
57 |
|
58 |
optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>. |
59 |
|
60 |
=item * |
61 |
|
62 |
at end, optional C<format>s rules are resolved. Format rules are similar to |
63 |
C<sprintf> and can also contain C<lookup{...}> which is performed after |
64 |
values are inserted in format. |
65 |
|
66 |
=back |
67 |
|
68 |
This also describes order in which transformations are applied (eval, |
69 |
filter, lookup, format) which is important to undestand when deciding how to |
70 |
solve your data mungling and normalisation process. |
71 |
|
72 |
|
73 |
|
74 |
|
75 |
=head1 FUNCTIONS |
76 |
|
77 |
=head2 new |
78 |
|
79 |
Create new normalisation object |
80 |
|
81 |
my $n = new WebPAC::Normalize::Something( |
82 |
filter => { |
83 |
'filter_name_1' => sub { |
84 |
# filter code |
85 |
return length($_); |
86 |
}, ... |
87 |
}, |
88 |
db => $db_obj, |
89 |
lookup_regex => $lookup->regex, |
90 |
lookup => $lookup_obj, |
91 |
prefix => 'foobar', |
92 |
); |
93 |
|
94 |
Parametar C<filter> defines user supplied snippets of perl code which can |
95 |
be use with C<filter{...}> notation. |
96 |
|
97 |
C<prefix> is used to form filename for database record (to support multiple |
98 |
source files which are joined in one database). |
99 |
|
100 |
Recommended parametar C<lookup_regex> is used to enable parsing of lookups |
101 |
in structures. If you pass this parametar, you must also pass C<lookup> |
102 |
which is C<WebPAC::Lookup> object. |
103 |
|
104 |
=cut |
105 |
|
106 |
sub new { |
107 |
my $class = shift; |
108 |
my $self = {@_}; |
109 |
bless($self, $class); |
110 |
|
111 |
my $r = $self->{'lookup_regex'} ? 1 : 0; |
112 |
my $l = $self->{'lookup'} ? 1 : 0; |
113 |
|
114 |
my $log = $self->_get_logger(); |
115 |
|
116 |
# those two must be in pair |
117 |
if ( ($r & $l) != ($r || $l) ) { |
118 |
my $log = $self->_get_logger(); |
119 |
$log->logdie("lookup_regex and lookup must be in pair"); |
120 |
} |
121 |
|
122 |
$log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup')); |
123 |
|
124 |
$log->warn("no prefix defined. please check that!") unless ($self->{'prefix'}); |
125 |
|
126 |
$log->debug("using lookup regex: ", $self->{lookup_regex}) if ($r && $l); |
127 |
|
128 |
if (! $self->{filter} || ! $self->{filter}->{regex}) { |
129 |
$log->debug("adding built-in filter regex"); |
130 |
$self->{filter}->{regex} = sub { |
131 |
my ($val, $regex) = @_; |
132 |
eval "\$val =~ $regex"; |
133 |
return $val; |
134 |
}; |
135 |
} |
136 |
|
137 |
$self ? return $self : return undef; |
138 |
} |
139 |
|
140 |
|
141 |
=head2 data_structure |
142 |
|
143 |
Create in-memory data structure which represents normalized layout from |
144 |
C<conf/normalize/*.xml>. |
145 |
|
146 |
This structures are used to produce output. |
147 |
|
148 |
my $ds = $webpac->data_structure($rec); |
149 |
|
150 |
=cut |
151 |
|
152 |
sub data_structure { |
153 |
my $self = shift; |
154 |
|
155 |
my $log = $self->_get_logger(); |
156 |
|
157 |
my $rec = shift; |
158 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
159 |
|
160 |
$log->debug("data_structure rec = ", sub { Dumper($rec) }); |
161 |
|
162 |
$log->logdie("need unique ID (mfn) in field 000 of record " . Dumper($rec) ) unless (defined($rec->{'000'})); |
163 |
|
164 |
my $id = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!"); |
165 |
|
166 |
my $cache_file; |
167 |
|
168 |
if ($self->{'db'}) { |
169 |
my $ds = $self->{'db'}->load_ds( id => $id, prefix => $self->{prefix} ); |
170 |
$log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) }); |
171 |
return $ds if ($ds); |
172 |
$log->debug("cache miss, creating"); |
173 |
} |
174 |
|
175 |
my @sorted_tags; |
176 |
if ($self->{tags_by_order}) { |
177 |
@sorted_tags = @{$self->{tags_by_order}}; |
178 |
} else { |
179 |
@sorted_tags = sort { $self->_sort_by_order } keys %{$self->{'import_xml'}->{'indexer'}}; |
180 |
$self->{tags_by_order} = \@sorted_tags; |
181 |
} |
182 |
|
183 |
my $ds; |
184 |
|
185 |
$log->debug("tags: ",sub { join(", ",@sorted_tags) }); |
186 |
|
187 |
foreach my $field (@sorted_tags) { |
188 |
|
189 |
my $row; |
190 |
|
191 |
#print "field $field [",$self->{'tag'},"] = ",Dumper($self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}); |
192 |
|
193 |
foreach my $tag (@{$self->{'import_xml'}->{'indexer'}->{$field}->{$self->{'tag'}}}) { |
194 |
my $format; |
195 |
|
196 |
$log->logdie("expected tag HASH and got $tag") unless (ref($tag) eq 'HASH'); |
197 |
$format = $tag->{'value'} || $tag->{'content'}; |
198 |
|
199 |
my @v; |
200 |
if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
201 |
@v = $self->_rec_to_arr($rec,$format,'fill_in'); |
202 |
} else { |
203 |
@v = $self->_rec_to_arr($rec,$format,'parse'); |
204 |
} |
205 |
if (! @v) { |
206 |
$log->debug("$field <",$self->{tag},"> format: $format no values"); |
207 |
next; |
208 |
} else { |
209 |
$log->debug("$field <",$self->{tag},"> format: $format values: ", join(",", @v)); |
210 |
} |
211 |
|
212 |
if ($tag->{'sort'}) { |
213 |
@v = $self->sort_arr(@v); |
214 |
} |
215 |
|
216 |
# use format? |
217 |
if ($tag->{'format_name'}) { |
218 |
@v = map { $self->apply_format($tag->{'format_name'},$tag->{'format_delimiter'},$_) } @v; |
219 |
} |
220 |
|
221 |
# delimiter will join repeatable fields |
222 |
if ($tag->{'delimiter'}) { |
223 |
@v = ( join($tag->{'delimiter'}, @v) ); |
224 |
} |
225 |
|
226 |
# default types |
227 |
my @types = qw(display search); |
228 |
# override by type attribute |
229 |
@types = ( $tag->{'type'} ) if ($tag->{'type'}); |
230 |
|
231 |
foreach my $type (@types) { |
232 |
# append to previous line? |
233 |
$log->debug("tag $field / $type [",sub { join(",",@v) }, "] ", $row->{'append'} || 'no append'); |
234 |
if ($tag->{'append'}) { |
235 |
|
236 |
# I will delimit appended part with |
237 |
# delimiter (or ,) |
238 |
my $d = $tag->{'delimiter'}; |
239 |
# default delimiter |
240 |
$d ||= " "; |
241 |
|
242 |
my $last = pop @{$row->{$type}}; |
243 |
$d = "" if (! $last); |
244 |
$last .= $d . join($d, @v); |
245 |
push @{$row->{$type}}, $last; |
246 |
|
247 |
} else { |
248 |
push @{$row->{$type}}, @v; |
249 |
} |
250 |
} |
251 |
|
252 |
|
253 |
} |
254 |
|
255 |
if ($row) { |
256 |
$row->{'tag'} = $field; |
257 |
|
258 |
# TODO: name_sigular, name_plural |
259 |
my $name = $self->{'import_xml'}->{'indexer'}->{$field}->{'name'}; |
260 |
my $row_name = $name ? $self->_x($name) : $field; |
261 |
|
262 |
# post-sort all values in field |
263 |
if ($self->{'import_xml'}->{'indexer'}->{$field}->{'sort'}) { |
264 |
$log->warn("sort at field tag not implemented"); |
265 |
} |
266 |
|
267 |
$ds->{$row_name} = $row; |
268 |
|
269 |
$log->debug("row $field: ",sub { Dumper($row) }); |
270 |
} |
271 |
|
272 |
} |
273 |
|
274 |
$self->{'db'}->save_ds( |
275 |
id => $id, |
276 |
ds => $ds, |
277 |
prefix => $self->{prefix}, |
278 |
) if ($self->{'db'}); |
279 |
|
280 |
$log->debug("ds: ", sub { Dumper($ds) }); |
281 |
|
282 |
$log->logconfess("data structure returned is not array any more!") if wantarray; |
283 |
|
284 |
return $ds; |
285 |
|
286 |
} |
287 |
|
288 |
=head2 parse |
289 |
|
290 |
Perform smart parsing of string, skipping delimiters for fields which aren't |
291 |
defined. It can also eval code in format starting with C<eval{...}> and |
292 |
return output or nothing depending on eval code. |
293 |
|
294 |
my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
295 |
|
296 |
Filters are implemented here. While simple form of filters looks like this: |
297 |
|
298 |
filter{name_of_filter} |
299 |
|
300 |
but, filters can also have variable number of parametars like this: |
301 |
|
302 |
filter{name_of_filter(param,param,param)} |
303 |
|
304 |
=cut |
305 |
|
306 |
my $warn_once; |
307 |
|
308 |
sub parse { |
309 |
my $self = shift; |
310 |
|
311 |
my ($rec, $format_utf8, $i, $rec_size) = @_; |
312 |
|
313 |
return if (! $format_utf8); |
314 |
|
315 |
my $log = $self->_get_logger(); |
316 |
|
317 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
318 |
|
319 |
$i = 0 if (! $i); |
320 |
|
321 |
my $format = $self->_x($format_utf8) || $log->logconfess("can't convert '$format_utf8' from UTF-8 to ",$self->{'code_page'}); |
322 |
|
323 |
my @out; |
324 |
|
325 |
$log->debug("format: $format [$i]"); |
326 |
|
327 |
my $eval_code; |
328 |
# remove eval{...} from beginning |
329 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
330 |
|
331 |
my $filter_name; |
332 |
# remove filter{...} from beginning |
333 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
334 |
|
335 |
# did we found any (att all) field from format in row? |
336 |
my $found_any; |
337 |
# prefix before first field which we preserve it $found_any |
338 |
my $prefix; |
339 |
|
340 |
my $f_step = 1; |
341 |
|
342 |
while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
343 |
|
344 |
my $del = $1 || ''; |
345 |
$prefix = $del if ($f_step == 1); |
346 |
|
347 |
my $fld_type = lc($2); |
348 |
|
349 |
# repeatable index |
350 |
my $r = $i; |
351 |
if ($fld_type eq 's') { |
352 |
if ($found_any->{'v'}) { |
353 |
$r = 0; |
354 |
} else { |
355 |
return; |
356 |
} |
357 |
} |
358 |
|
359 |
my $found = 0; |
360 |
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found,$rec_size); |
361 |
|
362 |
if ($found) { |
363 |
$found_any->{$fld_type} += $found; |
364 |
|
365 |
# we will skip delimiter before first occurence of field! |
366 |
push @out, $del unless($found_any->{$fld_type} == 1); |
367 |
push @out, $tmp; |
368 |
} |
369 |
$f_step++; |
370 |
} |
371 |
|
372 |
# test if any fields found? |
373 |
return if (! $found_any->{'v'} && ! $found_any->{'s'}); |
374 |
|
375 |
my $out = join('',@out); |
376 |
|
377 |
if ($out) { |
378 |
# add rest of format (suffix) |
379 |
$out .= $format; |
380 |
|
381 |
# add prefix if not there |
382 |
$out = $prefix . $out if ($out !~ m/^\Q$prefix\E/); |
383 |
|
384 |
$log->debug("result: $out"); |
385 |
} |
386 |
|
387 |
if ($eval_code) { |
388 |
my $eval = $self->fill_in($rec,$eval_code,$i) || return; |
389 |
$log->debug("about to eval{$eval} format: $out"); |
390 |
return if (! $self->_eval($eval)); |
391 |
} |
392 |
|
393 |
if ($filter_name) { |
394 |
my @filter_args; |
395 |
if ($filter_name =~ s/(\w+)\((.*)\)/$1/) { |
396 |
@filter_args = split(/,/, $2); |
397 |
} |
398 |
if ($self->{'filter'}->{$filter_name}) { |
399 |
$log->debug("about to filter{$filter_name} format: $out with arguments: ", join(",", @filter_args)); |
400 |
unshift @filter_args, $out; |
401 |
$out = $self->{'filter'}->{$filter_name}->(@filter_args); |
402 |
return unless(defined($out)); |
403 |
$log->debug("filter result: $out"); |
404 |
} elsif (! $warn_once->{$filter_name}) { |
405 |
$log->warn("trying to use undefined filter $filter_name"); |
406 |
$warn_once->{$filter_name}++; |
407 |
} |
408 |
} |
409 |
|
410 |
return $out; |
411 |
} |
412 |
|
413 |
=head2 fill_in |
414 |
|
415 |
Workhourse of all: takes record from in-memory structure of database and |
416 |
strings with placeholders and returns string or array of with substituted |
417 |
values from record. |
418 |
|
419 |
my $text = $webpac->fill_in($rec,'v250^a'); |
420 |
|
421 |
Optional argument is ordinal number for repeatable fields. By default, |
422 |
it's assume to be first repeatable field (fields are perl array, so first |
423 |
element is 0). |
424 |
Following example will read second value from repeatable field. |
425 |
|
426 |
my $text = $webpac->fill_in($rec,'Title: v250^a',1); |
427 |
|
428 |
This function B<does not> perform parsing of format to inteligenty skip |
429 |
delimiters before fields which aren't used. |
430 |
|
431 |
This method will automatically decode UTF-8 string to local code page |
432 |
if needed. |
433 |
|
434 |
There is optional parametar C<$record_size> which can be used to get sizes of |
435 |
all C<field^subfield> combinations in this format. |
436 |
|
437 |
my $text = $webpac->fill_in($rec,'got: v900^a v900^x',0,\$rec_size); |
438 |
|
439 |
=cut |
440 |
|
441 |
sub fill_in { |
442 |
my $self = shift; |
443 |
|
444 |
my $log = $self->_get_logger(); |
445 |
|
446 |
my ($rec,$format,$i,$rec_size) = @_; |
447 |
|
448 |
$log->logconfess("need data record") unless ($rec); |
449 |
$log->logconfess("need format to parse") unless($format); |
450 |
|
451 |
# iteration (for repeatable fields) |
452 |
$i ||= 0; |
453 |
|
454 |
$log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999)); |
455 |
|
456 |
# FIXME remove for speedup? |
457 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
458 |
|
459 |
if (utf8::is_utf8($format)) { |
460 |
$format = $self->_x($format); |
461 |
} |
462 |
|
463 |
my $found = 0; |
464 |
my $just_single = 1; |
465 |
|
466 |
my $eval_code; |
467 |
# remove eval{...} from beginning |
468 |
$eval_code = $1 if ($format =~ s/^eval{([^}]+)}//s); |
469 |
|
470 |
my $filter_name; |
471 |
# remove filter{...} from beginning |
472 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
473 |
|
474 |
{ |
475 |
# fix warnings |
476 |
no warnings 'uninitialized'; |
477 |
|
478 |
# do actual replacement of placeholders |
479 |
# repeatable fields |
480 |
if ($format =~ s/v(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,$i,\$found,$rec_size)/ges) { |
481 |
$just_single = 0; |
482 |
} |
483 |
|
484 |
# non-repeatable fields |
485 |
if ($format =~ s/s(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,0,\$found,$rec_size)/ges) { |
486 |
return if ($i > 0 && $just_single); |
487 |
} |
488 |
} |
489 |
|
490 |
if ($found) { |
491 |
$log->debug("format: $format"); |
492 |
if ($eval_code) { |
493 |
my $eval = $self->fill_in($rec,$eval_code,$i); |
494 |
return if (! $self->_eval($eval)); |
495 |
} |
496 |
if ($filter_name && $self->{'filter'}->{$filter_name}) { |
497 |
$log->debug("filter '$filter_name' for $format"); |
498 |
$format = $self->{'filter'}->{$filter_name}->($format); |
499 |
return unless(defined($format)); |
500 |
$log->debug("filter result: $format"); |
501 |
} |
502 |
# do we have lookups? |
503 |
if ($self->{'lookup'}) { |
504 |
if ($self->{'lookup'}->can('lookup')) { |
505 |
my @lookup = $self->{lookup}->lookup($format); |
506 |
$log->debug("lookup $format", join(", ", @lookup)); |
507 |
return @lookup; |
508 |
} else { |
509 |
$log->warn("Have lookup object but can't invoke lookup method"); |
510 |
} |
511 |
} else { |
512 |
return $format; |
513 |
} |
514 |
} else { |
515 |
return; |
516 |
} |
517 |
} |
518 |
|
519 |
|
520 |
=head2 _rec_to_arr |
521 |
|
522 |
Similar to C<parse> and C<fill_in>, but returns array of all repeatable fields. Usable |
523 |
for fields which have lookups, so they shouldn't be parsed but rather |
524 |
C<paste>d or C<fill_id>ed. Last argument is name of operation: C<paste> or C<fill_in>. |
525 |
|
526 |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]','paste'); |
527 |
|
528 |
=cut |
529 |
|
530 |
sub _rec_to_arr { |
531 |
my $self = shift; |
532 |
|
533 |
my ($rec, $format_utf8, $code) = @_; |
534 |
|
535 |
my $log = $self->_get_logger(); |
536 |
|
537 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
538 |
return if (! $format_utf8); |
539 |
|
540 |
$log->debug("using $code on $format_utf8"); |
541 |
|
542 |
my $i = 0; |
543 |
my $max = 0; |
544 |
my @arr; |
545 |
my $rec_size = {}; |
546 |
|
547 |
while ($i <= $max) { |
548 |
my @v = $self->$code($rec,$format_utf8,$i++,\$rec_size); |
549 |
if ($rec_size) { |
550 |
foreach my $f (keys %{ $rec_size }) { |
551 |
$max = $rec_size->{$f} if ($rec_size->{$f} > $max); |
552 |
} |
553 |
$log->debug("max set to $max"); |
554 |
undef $rec_size; |
555 |
} |
556 |
if (@v) { |
557 |
push @arr, @v; |
558 |
} else { |
559 |
push @arr, '' if ($max > $i); |
560 |
} |
561 |
} |
562 |
|
563 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
564 |
|
565 |
return @arr; |
566 |
} |
567 |
|
568 |
|
569 |
=head2 get_data |
570 |
|
571 |
Returns value from record. |
572 |
|
573 |
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found,\$rec_size); |
574 |
|
575 |
Required arguments are: |
576 |
|
577 |
=over 8 |
578 |
|
579 |
=item C<$rec> |
580 |
|
581 |
record reference |
582 |
|
583 |
=item C<$f> |
584 |
|
585 |
field |
586 |
|
587 |
=item C<$sf> |
588 |
|
589 |
optional subfield |
590 |
|
591 |
=item C<$i> |
592 |
|
593 |
index offset for repeatable values ( 0 ... $rec_size->{'400^a'} ) |
594 |
|
595 |
=item C<$found> |
596 |
|
597 |
optional variable that will be incremeted if preset |
598 |
|
599 |
=item C<$rec_size> |
600 |
|
601 |
hash to hold maximum occurances of C<field^subfield> combinations |
602 |
(which can be accessed using keys in same format) |
603 |
|
604 |
=back |
605 |
|
606 |
Returns value or empty string, updates C<$found> and C<rec_size> |
607 |
if present. |
608 |
|
609 |
=cut |
610 |
|
611 |
sub get_data { |
612 |
my $self = shift; |
613 |
|
614 |
my ($rec,$f,$sf,$i,$found,$cache) = @_; |
615 |
|
616 |
return '' unless ($$rec->{$f} && ref($$rec->{$f}) eq 'ARRAY'); |
617 |
|
618 |
if (defined($$cache)) { |
619 |
$$cache->{ $f . ( $sf ? '^' . $sf : '' ) } ||= scalar @{ $$rec->{$f} }; |
620 |
} |
621 |
|
622 |
return '' unless ($$rec->{$f}->[$i]); |
623 |
|
624 |
{ |
625 |
no strict 'refs'; |
626 |
if (defined($sf)) { |
627 |
$$found++ if (defined($$found) && $$rec->{$f}->[$i]->{$sf}); |
628 |
return $$rec->{$f}->[$i]->{$sf}; |
629 |
} else { |
630 |
$$found++ if (defined($$found)); |
631 |
# it still might have subfields, just |
632 |
# not specified, so we'll dump some debug info |
633 |
if ($$rec->{$f}->[$i] =~ /HASH/o) { |
634 |
my $out; |
635 |
foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
636 |
$out .= '$' . $k .':' . $$rec->{$f}->[$i]->{$k}." "; |
637 |
} |
638 |
return $out; |
639 |
} else { |
640 |
return $$rec->{$f}->[$i]; |
641 |
} |
642 |
} |
643 |
} |
644 |
} |
645 |
|
646 |
|
647 |
=head2 apply_format |
648 |
|
649 |
Apply format specified in tag with C<format_name="name"> and |
650 |
C<format_delimiter=";;">. |
651 |
|
652 |
my $text = $webpac->apply_format($format_name,$format_delimiter,$data); |
653 |
|
654 |
Formats can contain C<lookup{...}> if you need them. |
655 |
|
656 |
=cut |
657 |
|
658 |
sub apply_format { |
659 |
my $self = shift; |
660 |
|
661 |
my ($name,$delimiter,$data) = @_; |
662 |
|
663 |
my $log = $self->_get_logger(); |
664 |
|
665 |
if (! $self->{'import_xml'}->{'format'}->{$name}) { |
666 |
$log->warn("<format name=\"$name\"> is not defined in ",$self->{'import_xml_file'}); |
667 |
return $data; |
668 |
} |
669 |
|
670 |
$log->warn("no delimiter for format $name") if (! $delimiter); |
671 |
|
672 |
my $format = $self->_x($self->{'import_xml'}->{'format'}->{$name}->{'content'}) || $log->logdie("can't find format '$name'"); |
673 |
|
674 |
my @data = split(/\Q$delimiter\E/, $data); |
675 |
|
676 |
my $out = sprintf($format, @data); |
677 |
$log->debug("using format $name [$format] on $data to produce: $out"); |
678 |
|
679 |
if ($self->{'lookup_regex'} && $out =~ $self->{'lookup_regex'}) { |
680 |
return $self->{'lookup'}->lookup($out); |
681 |
} else { |
682 |
return $out; |
683 |
} |
684 |
|
685 |
} |
686 |
|
687 |
=head2 sort_arr |
688 |
|
689 |
Sort array ignoring case and html in data |
690 |
|
691 |
my @sorted = $webpac->sort_arr(@unsorted); |
692 |
|
693 |
=cut |
694 |
|
695 |
sub sort_arr { |
696 |
my $self = shift; |
697 |
|
698 |
my $log = $self->_get_logger(); |
699 |
|
700 |
# FIXME add Schwartzian Transformation? |
701 |
|
702 |
my @sorted = sort { |
703 |
$a =~ s#<[^>]+/*>##; |
704 |
$b =~ s#<[^>]+/*>##; |
705 |
lc($b) cmp lc($a) |
706 |
} @_; |
707 |
$log->debug("sorted values: ",sub { join(", ",@sorted) }); |
708 |
|
709 |
return @sorted; |
710 |
} |
711 |
|
712 |
|
713 |
=head1 INTERNAL METHODS |
714 |
|
715 |
=head2 _sort_by_order |
716 |
|
717 |
Sort xml tags data structure accoding to C<order=""> attribute. |
718 |
|
719 |
=cut |
720 |
|
721 |
sub _sort_by_order { |
722 |
my $self = shift; |
723 |
|
724 |
my $va = $self->{'import_xml'}->{'indexer'}->{$a}->{'order'} || |
725 |
$self->{'import_xml'}->{'indexer'}->{$a}; |
726 |
my $vb = $self->{'import_xml'}->{'indexer'}->{$b}->{'order'} || |
727 |
$self->{'import_xml'}->{'indexer'}->{$b}; |
728 |
|
729 |
return $va <=> $vb; |
730 |
} |
731 |
|
732 |
=head2 _x |
733 |
|
734 |
Convert strings from C<conf/normalize/*.xml> encoding into application |
735 |
specific encoding (optinally specified using C<code_page> to C<new> |
736 |
constructor). |
737 |
|
738 |
my $text = $n->_x('normalize text string'); |
739 |
|
740 |
This is a stub so that other modules doesn't have to implement it. |
741 |
|
742 |
=cut |
743 |
|
744 |
sub _x { |
745 |
my $self = shift; |
746 |
return shift; |
747 |
} |
748 |
|
749 |
|
750 |
=head1 AUTHOR |
751 |
|
752 |
Dobrica Pavlinusic, C<< <dpavlin@rot13.org> >> |
753 |
|
754 |
=head1 COPYRIGHT & LICENSE |
755 |
|
756 |
Copyright 2005 Dobrica Pavlinusic, All Rights Reserved. |
757 |
|
758 |
This program is free software; you can redistribute it and/or modify it |
759 |
under the same terms as Perl itself. |
760 |
|
761 |
=cut |
762 |
|
763 |
1; # End of WebPAC::Normalize |