1 |
package WebPAC::Normalize; |
2 |
use Exporter 'import'; |
3 |
@EXPORT = qw/ |
4 |
_set_rec _set_lookup |
5 |
_set_load_row |
6 |
_get_ds _clean_ds |
7 |
_debug |
8 |
_pack_subfields_hash |
9 |
|
10 |
search_display search display |
11 |
|
12 |
marc marc_indicators marc_repeatable_subfield |
13 |
marc_compose marc_leader marc_fixed |
14 |
marc_duplicate marc_remove marc_count |
15 |
marc_original_order |
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|
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rec1 rec2 rec |
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regex prefix suffix surround |
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first lookup join_with |
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save_into_lookup |
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|
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split_rec_on |
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|
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get set |
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count |
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/; |
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|
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use warnings; |
29 |
use strict; |
30 |
|
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#use base qw/WebPAC::Common/; |
32 |
use Data::Dump qw/dump/; |
33 |
use Storable qw/dclone/; |
34 |
use Carp qw/confess/; |
35 |
|
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# debugging warn(s) |
37 |
my $debug = 0; |
38 |
|
39 |
|
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=head1 NAME |
41 |
|
42 |
WebPAC::Normalize - describe normalisaton rules using sets |
43 |
|
44 |
=head1 VERSION |
45 |
|
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Version 0.30 |
47 |
|
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=cut |
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|
50 |
our $VERSION = '0.30'; |
51 |
|
52 |
=head1 SYNOPSIS |
53 |
|
54 |
This module uses C<conf/normalize/*.pl> files to perform normalisation |
55 |
from input records using perl functions which are specialized for set |
56 |
processing. |
57 |
|
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Sets are implemented as arrays, and normalisation file is valid perl, which |
59 |
means that you check it's validity before running WebPAC using |
60 |
C<perl -c normalize.pl>. |
61 |
|
62 |
Normalisation can generate multiple output normalized data. For now, supported output |
63 |
types (on the left side of definition) are: C<search_display>, C<display>, C<search> and |
64 |
C<marc>. |
65 |
|
66 |
=head1 FUNCTIONS |
67 |
|
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Functions which start with C<_> are private and used by WebPAC internally. |
69 |
All other functions are available for use within normalisation rules. |
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|
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=head2 data_structure |
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|
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Return data structure |
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|
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my $ds = WebPAC::Normalize::data_structure( |
76 |
lookup => $lookup_hash, |
77 |
row => $row, |
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rules => $normalize_pl_config, |
79 |
marc_encoding => 'utf-8', |
80 |
config => $config, |
81 |
load_row_coderef => sub { |
82 |
my ($database,$input,$mfn) = shift; |
83 |
$store->load_row( database => $database, input => $input, id => $mfn ); |
84 |
}, |
85 |
); |
86 |
|
87 |
Options C<row>, C<rules> and C<log> are mandatory while all |
88 |
other are optional. |
89 |
|
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C<load_row_coderef> is closure only used when executing lookups, so they will |
91 |
die if it's not defined. |
92 |
|
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This function will B<die> if normalizastion can't be evaled. |
94 |
|
95 |
Since this function isn't exported you have to call it with |
96 |
C<WebPAC::Normalize::data_structure>. |
97 |
|
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=cut |
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|
100 |
my $load_row_coderef; |
101 |
|
102 |
sub data_structure { |
103 |
my $arg = {@_}; |
104 |
|
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die "need row argument" unless ($arg->{row}); |
106 |
die "need normalisation argument" unless ($arg->{rules}); |
107 |
|
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no strict 'subs'; |
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_set_lookup( $arg->{lookup} ) if defined($arg->{lookup}); |
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_set_rec( $arg->{row} ); |
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_set_config( $arg->{config} ) if defined($arg->{config}); |
112 |
_clean_ds( %{ $arg } ); |
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$load_row_coderef = $arg->{load_row_coderef}; |
114 |
|
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eval "$arg->{rules}"; |
116 |
die "error evaling $arg->{rules}: $@\n" if ($@); |
117 |
|
118 |
return _get_ds(); |
119 |
} |
120 |
|
121 |
=head2 _set_rec |
122 |
|
123 |
Set current record hash |
124 |
|
125 |
_set_rec( $rec ); |
126 |
|
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=cut |
128 |
|
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my $rec; |
130 |
|
131 |
sub _set_rec { |
132 |
$rec = shift or die "no record hash"; |
133 |
} |
134 |
|
135 |
=head2 _set_config |
136 |
|
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Set current config hash |
138 |
|
139 |
_set_config( $config ); |
140 |
|
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Magic keys are: |
142 |
|
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=over 4 |
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|
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=item _ |
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|
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Code of current database |
148 |
|
149 |
=item _mfn |
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|
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Current MFN |
152 |
|
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=back |
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|
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=cut |
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|
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my $config; |
158 |
|
159 |
sub _set_config { |
160 |
$config = shift; |
161 |
} |
162 |
|
163 |
=head2 _get_ds |
164 |
|
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Return hash formatted as data structure |
166 |
|
167 |
my $ds = _get_ds(); |
168 |
|
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=cut |
170 |
|
171 |
my ($out, $marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators, $marc_leader); |
172 |
my ($marc_record_offset, $marc_fetch_offset) = (0, 0); |
173 |
|
174 |
sub _get_ds { |
175 |
return $out; |
176 |
} |
177 |
|
178 |
=head2 _clean_ds |
179 |
|
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Clean data structure hash for next record |
181 |
|
182 |
_clean_ds(); |
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|
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=cut |
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|
186 |
sub _clean_ds { |
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my $a = {@_}; |
188 |
($out,$marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators, $marc_leader) = (); |
189 |
($marc_record_offset, $marc_fetch_offset) = (0,0); |
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$marc_encoding = $a->{marc_encoding}; |
191 |
} |
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|
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=head2 _set_lookup |
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|
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Set current lookup hash |
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|
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_set_lookup( $lookup ); |
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|
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=cut |
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|
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my $lookup; |
202 |
|
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sub _set_lookup { |
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$lookup = shift; |
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} |
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|
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=head2 _get_lookup |
208 |
|
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Get current lookup hash |
210 |
|
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my $lookup = _get_lookup(); |
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|
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=cut |
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|
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sub _get_lookup { |
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return $lookup; |
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} |
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|
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=head2 _set_load_row |
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|
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Setup code reference which will return L<data_structure> from |
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L<WebPAC::Store> |
223 |
|
224 |
_set_load_row(sub { |
225 |
my ($database,$input,$mfn) = @_; |
226 |
$store->load_row( database => $database, input => $input, id => $mfn ); |
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}); |
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|
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=cut |
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|
231 |
sub _set_load_row { |
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my $coderef = shift; |
233 |
confess "argument isn't CODE" unless ref($coderef) eq 'CODE'; |
234 |
|
235 |
$load_row_coderef = $coderef; |
236 |
} |
237 |
|
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=head2 _get_marc_fields |
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|
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Get all fields defined by calls to C<marc> |
241 |
|
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$marc->add_fields( WebPAC::Normalize:_get_marc_fields() ); |
243 |
|
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We are using I<magic> which detect repeatable fields only from |
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sequence of field/subfield data generated by normalization. |
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|
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Repeatable field is created when there is second occurence of same subfield or |
248 |
if any of indicators are different. |
249 |
|
250 |
This is sane for most cases. Something like: |
251 |
|
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900a-1 900b-1 900c-1 |
253 |
900a-2 900b-2 |
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900a-3 |
255 |
|
256 |
will be created from any combination of: |
257 |
|
258 |
900a-1 900a-2 900a-3 900b-1 900b-2 900c-1 |
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|
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and following rules: |
261 |
|
262 |
marc('900','a', rec('200','a') ); |
263 |
marc('900','b', rec('200','b') ); |
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marc('900','c', rec('200','c') ); |
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|
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which might not be what you have in mind. If you need repeatable subfield, |
267 |
define it using C<marc_repeatable_subfield> like this: |
268 |
|
269 |
marc_repeatable_subfield('900','a'); |
270 |
marc('900','a', rec('200','a') ); |
271 |
marc('900','b', rec('200','b') ); |
272 |
marc('900','c', rec('200','c') ); |
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|
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will create: |
275 |
|
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900a-1 900a-2 900a-3 900b-1 900c-1 |
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900b-2 |
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|
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There is also support for returning next or specific using: |
280 |
|
281 |
while (my $mf = WebPAC::Normalize:_get_marc_fields( fetch_next => 1 ) ) { |
282 |
# do something with $mf |
283 |
} |
284 |
|
285 |
will always return fields from next MARC record or |
286 |
|
287 |
my $mf = WebPAC::Normalize::_get_marc_fields( offset => 42 ); |
288 |
|
289 |
will return 42th copy record (if it exists). |
290 |
|
291 |
=cut |
292 |
|
293 |
my $fetch_pos; |
294 |
|
295 |
sub _get_marc_fields { |
296 |
|
297 |
my $arg = {@_}; |
298 |
warn "### _get_marc_fields arg: ", dump($arg), $/ if ($debug > 2); |
299 |
$fetch_pos = $marc_fetch_offset; |
300 |
if ($arg->{offset}) { |
301 |
$fetch_pos = $arg->{offset}; |
302 |
} elsif($arg->{fetch_next}) { |
303 |
$marc_fetch_offset++; |
304 |
} |
305 |
|
306 |
return if (! $marc_record || ref($marc_record) ne 'ARRAY'); |
307 |
|
308 |
warn "### full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 2); |
309 |
|
310 |
my $marc_rec = $marc_record->[ $fetch_pos ]; |
311 |
|
312 |
warn "## _get_marc_fields (at offset: $fetch_pos) -- marc_record = ", dump( @$marc_rec ), $/ if ($debug > 1); |
313 |
|
314 |
return if (! $marc_rec || ref($marc_rec) ne 'ARRAY' || $#{ $marc_rec } < 0); |
315 |
|
316 |
# first, sort all existing fields |
317 |
# XXX might not be needed, but modern perl might randomize elements in hash |
318 |
my @sorted_marc_record = sort { |
319 |
$a->[0] . ( $a->[3] || '' ) cmp $b->[0] . ( $b->[3] || '') |
320 |
} @{ $marc_rec }; |
321 |
|
322 |
@sorted_marc_record = @{ $marc_rec }; ### FIXME disable sorting |
323 |
|
324 |
# output marc fields |
325 |
my @m; |
326 |
|
327 |
# count unique field-subfields (used for offset when walking to next subfield) |
328 |
my $u; |
329 |
map { $u->{ $_->[0] . ( $_->[3] || '') }++ } @sorted_marc_record; |
330 |
|
331 |
if ($debug) { |
332 |
warn "## marc_repeatable_subfield = ", dump( $marc_repeatable_subfield ), $/ if ( $marc_repeatable_subfield ); |
333 |
warn "## marc_record[$fetch_pos] = ", dump( $marc_rec ), $/; |
334 |
warn "## sorted_marc_record = ", dump( \@sorted_marc_record ), $/; |
335 |
warn "## subfield count = ", dump( $u ), $/; |
336 |
} |
337 |
|
338 |
my $len = $#sorted_marc_record; |
339 |
my $visited; |
340 |
my $i = 0; |
341 |
my $field; |
342 |
|
343 |
foreach ( 0 .. $len ) { |
344 |
|
345 |
# find next element which isn't visited |
346 |
while ($visited->{$i}) { |
347 |
$i = ($i + 1) % ($len + 1); |
348 |
} |
349 |
|
350 |
# mark it visited |
351 |
$visited->{$i}++; |
352 |
|
353 |
my $row = dclone( $sorted_marc_record[$i] ); |
354 |
|
355 |
# field and subfield which is key for |
356 |
# marc_repeatable_subfield and u |
357 |
my $fsf = $row->[0] . ( $row->[3] || '' ); |
358 |
|
359 |
if ($debug > 1) { |
360 |
|
361 |
print "### field so far [", $#$field, "] : ", dump( $field ), " ", $field ? 'T' : 'F', $/; |
362 |
print "### this [$i]: ", dump( $row ),$/; |
363 |
print "### sf: ", $row->[3], " vs ", $field->[3], |
364 |
$marc_repeatable_subfield->{ $row->[0] . $row->[3] } ? ' (repeatable)' : '', $/, |
365 |
if ($#$field >= 0); |
366 |
|
367 |
} |
368 |
|
369 |
# if field exists |
370 |
if ( $#$field >= 0 ) { |
371 |
if ( |
372 |
$row->[0] ne $field->[0] || # field |
373 |
$row->[1] ne $field->[1] || # i1 |
374 |
$row->[2] ne $field->[2] # i2 |
375 |
) { |
376 |
push @m, $field; |
377 |
warn "## saved/1 ", dump( $field ),$/ if ($debug); |
378 |
$field = $row; |
379 |
|
380 |
} elsif ( |
381 |
( $row->[3] lt $field->[-2] ) # subfield which is not next (e.g. a after c) |
382 |
|| |
383 |
( $row->[3] eq $field->[-2] && # same subfield, but not repeatable |
384 |
! $marc_repeatable_subfield->{ $fsf } |
385 |
) |
386 |
) { |
387 |
push @m, $field; |
388 |
warn "## saved/2 ", dump( $field ),$/ if ($debug); |
389 |
$field = $row; |
390 |
|
391 |
} else { |
392 |
# append new subfields to existing field |
393 |
push @$field, ( $row->[3], $row->[4] ); |
394 |
} |
395 |
} else { |
396 |
# insert first field |
397 |
$field = $row; |
398 |
} |
399 |
|
400 |
if (! $marc_repeatable_subfield->{ $fsf }) { |
401 |
# make step to next subfield |
402 |
$i = ($i + $u->{ $fsf } ) % ($len + 1); |
403 |
} |
404 |
} |
405 |
|
406 |
if ($#$field >= 0) { |
407 |
push @m, $field; |
408 |
warn "## saved/3 ", dump( $field ),$/ if ($debug); |
409 |
} |
410 |
|
411 |
return \@m; |
412 |
} |
413 |
|
414 |
=head2 _get_marc_leader |
415 |
|
416 |
Return leader from currently fetched record by L</_get_marc_fields> |
417 |
|
418 |
print WebPAC::Normalize::_get_marc_leader(); |
419 |
|
420 |
=cut |
421 |
|
422 |
sub _get_marc_leader { |
423 |
die "no fetch_pos, did you called _get_marc_fields first?" unless ( defined( $fetch_pos ) ); |
424 |
return $marc_leader->[ $fetch_pos ]; |
425 |
} |
426 |
|
427 |
=head2 _debug |
428 |
|
429 |
Change level of debug warnings |
430 |
|
431 |
_debug( 2 ); |
432 |
|
433 |
=cut |
434 |
|
435 |
sub _debug { |
436 |
my $l = shift; |
437 |
return $debug unless defined($l); |
438 |
warn "debug level $l",$/ if ($l > 0); |
439 |
$debug = $l; |
440 |
} |
441 |
|
442 |
=head1 Functions to create C<data_structure> |
443 |
|
444 |
Those functions generally have to first in your normalization file. |
445 |
|
446 |
=head2 search_display |
447 |
|
448 |
Define output for L<search> and L<display> at the same time |
449 |
|
450 |
search_display('Title', rec('200','a') ); |
451 |
|
452 |
|
453 |
=cut |
454 |
|
455 |
sub search_display { |
456 |
my $name = shift or die "search_display needs name as first argument"; |
457 |
my @o = grep { defined($_) && $_ ne '' } @_; |
458 |
return unless (@o); |
459 |
$out->{$name}->{search} = \@o; |
460 |
$out->{$name}->{display} = \@o; |
461 |
} |
462 |
|
463 |
=head2 tag |
464 |
|
465 |
Old name for L<search_display>, but supported |
466 |
|
467 |
=cut |
468 |
|
469 |
sub tag { |
470 |
search_display( @_ ); |
471 |
} |
472 |
|
473 |
=head2 display |
474 |
|
475 |
Define output just for I<display> |
476 |
|
477 |
@v = display('Title', rec('200','a') ); |
478 |
|
479 |
=cut |
480 |
|
481 |
sub display { |
482 |
my $name = shift or die "display needs name as first argument"; |
483 |
my @o = grep { defined($_) && $_ ne '' } @_; |
484 |
return unless (@o); |
485 |
$out->{$name}->{display} = \@o; |
486 |
} |
487 |
|
488 |
=head2 search |
489 |
|
490 |
Prepare values just for I<search> |
491 |
|
492 |
@v = search('Title', rec('200','a') ); |
493 |
|
494 |
=cut |
495 |
|
496 |
sub search { |
497 |
my $name = shift or die "search needs name as first argument"; |
498 |
my @o = grep { defined($_) && $_ ne '' } @_; |
499 |
return unless (@o); |
500 |
$out->{$name}->{search} = \@o; |
501 |
} |
502 |
|
503 |
=head2 marc_leader |
504 |
|
505 |
Setup fields within MARC leader or get leader |
506 |
|
507 |
marc_leader('05','c'); |
508 |
my $leader = marc_leader(); |
509 |
|
510 |
=cut |
511 |
|
512 |
sub marc_leader { |
513 |
my ($offset,$value) = @_; |
514 |
|
515 |
if ($offset) { |
516 |
$marc_leader->[ $marc_record_offset ]->{ $offset } = $value; |
517 |
} else { |
518 |
|
519 |
if (defined($marc_leader)) { |
520 |
die "marc_leader not array = ", dump( $marc_leader ) unless (ref($marc_leader) eq 'ARRAY'); |
521 |
return $marc_leader->[ $marc_record_offset ]; |
522 |
} else { |
523 |
return; |
524 |
} |
525 |
} |
526 |
} |
527 |
|
528 |
=head2 marc_fixed |
529 |
|
530 |
Create control/indentifier fields with values in fixed positions |
531 |
|
532 |
marc_fixed('008', 00, '070402'); |
533 |
marc_fixed('008', 39, '|'); |
534 |
|
535 |
Positions not specified will be filled with spaces (C<0x20>). |
536 |
|
537 |
There will be no effort to extend last specified value to full length of |
538 |
field in standard. |
539 |
|
540 |
=cut |
541 |
|
542 |
sub marc_fixed { |
543 |
my ($f, $pos, $val) = @_; |
544 |
die "need marc(field, position, value)" unless defined($f) && defined($pos); |
545 |
|
546 |
confess "need val" unless defined $val; |
547 |
|
548 |
my $update = 0; |
549 |
|
550 |
map { |
551 |
if ($_->[0] eq $f) { |
552 |
my $old = $_->[1]; |
553 |
if (length($old) <= $pos) { |
554 |
$_->[1] .= ' ' x ( $pos - length($old) ) . $val; |
555 |
warn "## marc_fixed($f,$pos,'$val') append '$old' -> '$_->[1]'\n" if ($debug > 1); |
556 |
} else { |
557 |
$_->[1] = substr($old, 0, $pos) . $val . substr($old, $pos + length($val)); |
558 |
warn "## marc_fixed($f,$pos,'$val') update '$old' -> '$_->[1]'\n" if ($debug > 1); |
559 |
} |
560 |
$update++; |
561 |
} |
562 |
} @{ $marc_record->[ $marc_record_offset ] }; |
563 |
|
564 |
if (! $update) { |
565 |
my $v = ' ' x $pos . $val; |
566 |
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $v ]; |
567 |
warn "## marc_fixed($f,$pos,'val') created '$v'\n" if ($debug > 1); |
568 |
} |
569 |
} |
570 |
|
571 |
=head2 marc |
572 |
|
573 |
Save value for MARC field |
574 |
|
575 |
marc('900','a', rec('200','a') ); |
576 |
marc('001', rec('000') ); |
577 |
|
578 |
=cut |
579 |
|
580 |
sub marc { |
581 |
my $f = shift or die "marc needs field"; |
582 |
die "marc field must be numer" unless ($f =~ /^\d+$/); |
583 |
|
584 |
my $sf; |
585 |
if ($f >= 10) { |
586 |
$sf = shift or die "marc needs subfield"; |
587 |
} |
588 |
|
589 |
foreach (@_) { |
590 |
my $v = $_; # make var read-write for Encode |
591 |
next unless (defined($v) && $v !~ /^\s*$/); |
592 |
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
593 |
if (defined $sf) { |
594 |
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $i1, $i2, $sf => $v ]; |
595 |
} else { |
596 |
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $v ]; |
597 |
} |
598 |
} |
599 |
} |
600 |
|
601 |
=head2 marc_repeatable_subfield |
602 |
|
603 |
Save values for MARC repetable subfield |
604 |
|
605 |
marc_repeatable_subfield('910', 'z', rec('909') ); |
606 |
|
607 |
=cut |
608 |
|
609 |
sub marc_repeatable_subfield { |
610 |
my ($f,$sf) = @_; |
611 |
die "marc_repeatable_subfield need field and subfield!\n" unless ($f && $sf); |
612 |
$marc_repeatable_subfield->{ $f . $sf }++; |
613 |
marc(@_); |
614 |
} |
615 |
|
616 |
=head2 marc_indicators |
617 |
|
618 |
Set both indicators for MARC field |
619 |
|
620 |
marc_indicators('900', ' ', 1); |
621 |
|
622 |
Any indicator value other than C<0-9> will be treated as undefined. |
623 |
|
624 |
=cut |
625 |
|
626 |
sub marc_indicators { |
627 |
my $f = shift || die "marc_indicators need field!\n"; |
628 |
my ($i1,$i2) = @_; |
629 |
die "marc_indicators($f, ...) need i1!\n" unless(defined($i1)); |
630 |
die "marc_indicators($f, $i1, ...) need i2!\n" unless(defined($i2)); |
631 |
|
632 |
$i1 = ' ' if ($i1 !~ /^\d$/); |
633 |
$i2 = ' ' if ($i2 !~ /^\d$/); |
634 |
@{ $marc_indicators->{$f} } = ($i1,$i2); |
635 |
} |
636 |
|
637 |
=head2 marc_compose |
638 |
|
639 |
Save values for each MARC subfield explicitly |
640 |
|
641 |
marc_compose('900', |
642 |
'a', rec('200','a') |
643 |
'b', rec('201','a') |
644 |
'a', rec('200','b') |
645 |
'c', rec('200','c') |
646 |
); |
647 |
|
648 |
If you specify C<+> for subfield, value will be appended |
649 |
to previous defined subfield. |
650 |
|
651 |
=cut |
652 |
|
653 |
sub marc_compose { |
654 |
my $f = shift or die "marc_compose needs field"; |
655 |
die "marc_compose field must be numer" unless ($f =~ /^\d+$/); |
656 |
|
657 |
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
658 |
my $m = [ $f, $i1, $i2 ]; |
659 |
|
660 |
warn "### marc_compose input subfields = ", dump(@_),$/ if ($debug > 2); |
661 |
|
662 |
if ($#_ % 2 != 1) { |
663 |
die "ERROR: marc_compose",dump($f,@_)," not valid (must be even).\nDo you need to add first() or join() around some argument?\n"; |
664 |
} |
665 |
|
666 |
while (@_) { |
667 |
my $sf = shift; |
668 |
my $v = shift; |
669 |
|
670 |
next unless (defined($v) && $v !~ /^\s*$/); |
671 |
warn "## ++ marc_compose($f,$sf,$v) ", dump( $m ),$/ if ($debug > 1); |
672 |
if ($sf ne '+') { |
673 |
push @$m, ( $sf, $v ); |
674 |
} else { |
675 |
$m->[ $#$m ] .= $v; |
676 |
} |
677 |
} |
678 |
|
679 |
warn "## marc_compose current marc = ", dump( $m ),$/ if ($debug > 1); |
680 |
|
681 |
push @{ $marc_record->[ $marc_record_offset ] }, $m if ($#{$m} > 2); |
682 |
} |
683 |
|
684 |
=head2 marc_duplicate |
685 |
|
686 |
Generate copy of current MARC record and continue working on copy |
687 |
|
688 |
marc_duplicate(); |
689 |
|
690 |
Copies can be accessed using C<< _get_marc_fields( fetch_next => 1 ) >> or |
691 |
C<< _get_marc_fields( offset => 42 ) >>. |
692 |
|
693 |
=cut |
694 |
|
695 |
sub marc_duplicate { |
696 |
my $m = $marc_record->[ -1 ]; |
697 |
die "can't duplicate record which isn't defined" unless ($m); |
698 |
push @{ $marc_record }, dclone( $m ); |
699 |
push @{ $marc_leader }, dclone( marc_leader() ); |
700 |
warn "## marc_duplicate = ", dump(@$marc_leader, @$marc_record), $/ if ($debug > 1); |
701 |
$marc_record_offset = $#{ $marc_record }; |
702 |
warn "## marc_record_offset = $marc_record_offset", $/ if ($debug > 1); |
703 |
|
704 |
} |
705 |
|
706 |
=head2 marc_remove |
707 |
|
708 |
Remove some field or subfield from MARC record. |
709 |
|
710 |
marc_remove('200'); |
711 |
marc_remove('200','a'); |
712 |
|
713 |
This will erase field C<200> or C<200^a> from current MARC record. |
714 |
|
715 |
marc_remove('*'); |
716 |
|
717 |
Will remove all fields in current MARC record. |
718 |
|
719 |
This is useful after calling C<marc_duplicate> or on it's own (but, you |
720 |
should probably just remove that subfield definition if you are not |
721 |
using C<marc_duplicate>). |
722 |
|
723 |
FIXME: support fields < 10. |
724 |
|
725 |
=cut |
726 |
|
727 |
sub marc_remove { |
728 |
my ($f, $sf) = @_; |
729 |
|
730 |
die "marc_remove needs record number" unless defined($f); |
731 |
|
732 |
my $marc = $marc_record->[ $marc_record_offset ]; |
733 |
|
734 |
warn "### marc_remove before = ", dump( $marc ), $/ if ($debug > 2); |
735 |
|
736 |
if ($f eq '*') { |
737 |
|
738 |
delete( $marc_record->[ $marc_record_offset ] ); |
739 |
warn "## full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 1); |
740 |
|
741 |
} else { |
742 |
|
743 |
my $i = 0; |
744 |
foreach ( 0 .. $#{ $marc } ) { |
745 |
last unless (defined $marc->[$i]); |
746 |
warn "#### working on ",dump( @{ $marc->[$i] }), $/ if ($debug > 3); |
747 |
if ($marc->[$i]->[0] eq $f) { |
748 |
if (! defined $sf) { |
749 |
# remove whole field |
750 |
splice @$marc, $i, 1; |
751 |
warn "#### slice \@\$marc, $i, 1 = ",dump( @{ $marc }), $/ if ($debug > 3); |
752 |
$i--; |
753 |
} else { |
754 |
foreach my $j ( 0 .. (( $#{ $marc->[$i] } - 3 ) / 2) ) { |
755 |
my $o = ($j * 2) + 3; |
756 |
if ($marc->[$i]->[$o] eq $sf) { |
757 |
# remove subfield |
758 |
splice @{$marc->[$i]}, $o, 2; |
759 |
warn "#### slice \@{\$marc->[$i]}, $o, 2 = ", dump( @{ $marc }), $/ if ($debug > 3); |
760 |
# is record now empty? |
761 |
if ($#{ $marc->[$i] } == 2) { |
762 |
splice @$marc, $i, 1; |
763 |
warn "#### slice \@\$marc, $i, 1 = ", dump( @{ $marc }), $/ if ($debug > 3); |
764 |
$i--; |
765 |
}; |
766 |
} |
767 |
} |
768 |
} |
769 |
} |
770 |
$i++; |
771 |
} |
772 |
|
773 |
warn "### marc_remove($f", $sf ? ",$sf" : "", ") after = ", dump( $marc ), $/ if ($debug > 2); |
774 |
|
775 |
$marc_record->[ $marc_record_offset ] = $marc; |
776 |
} |
777 |
|
778 |
warn "## full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 1); |
779 |
} |
780 |
|
781 |
=head2 marc_original_order |
782 |
|
783 |
Copy all subfields preserving original order to marc field. |
784 |
|
785 |
marc_original_order( marc_field_number, original_input_field_number ); |
786 |
|
787 |
Please note that field numbers are consistent with other commands (marc |
788 |
field number first), but somewhat counter-intuitive (destination and then |
789 |
source). |
790 |
|
791 |
You might want to use this command if you are just renaming subfields or |
792 |
using pre-processing modify_record in C<config.yml> and don't need any |
793 |
post-processing or want to preserve order of original subfields. |
794 |
|
795 |
|
796 |
=cut |
797 |
|
798 |
sub marc_original_order { |
799 |
|
800 |
my ($to, $from) = @_; |
801 |
die "marc_original_order needs from and to fields\n" unless ($from && $to); |
802 |
|
803 |
return unless defined($rec->{$from}); |
804 |
|
805 |
my $r = $rec->{$from}; |
806 |
die "record field $from isn't array\n" unless (ref($r) eq 'ARRAY'); |
807 |
|
808 |
my ($i1,$i2) = defined($marc_indicators->{$to}) ? @{ $marc_indicators->{$to} } : (' ',' '); |
809 |
warn "## marc_original_order($to,$from) source = ", dump( $r ),$/ if ($debug > 1); |
810 |
|
811 |
foreach my $d (@$r) { |
812 |
|
813 |
if (! defined($d->{subfields}) && ref($d->{subfields}) ne 'ARRAY') { |
814 |
warn "# marc_original_order($to,$from): field $from doesn't have subfields specification\n"; |
815 |
next; |
816 |
} |
817 |
|
818 |
my @sfs = @{ $d->{subfields} }; |
819 |
|
820 |
die "field $from doesn't have even number of subfields specifications\n" unless($#sfs % 2 == 1); |
821 |
|
822 |
warn "#--> d: ",dump($d), "\n#--> sfs: ",dump(@sfs),$/ if ($debug > 2); |
823 |
|
824 |
my $m = [ $to, $i1, $i2 ]; |
825 |
|
826 |
while (my $sf = shift @sfs) { |
827 |
|
828 |
warn "#--> sf: ",dump($sf), $/ if ($debug > 2); |
829 |
my $offset = shift @sfs; |
830 |
die "corrupted sufields specification for field $from\n" unless defined($offset); |
831 |
|
832 |
my $v; |
833 |
if (ref($d->{$sf}) eq 'ARRAY') { |
834 |
$v = $d->{$sf}->[$offset] if (defined($d->{$sf}->[$offset])); |
835 |
} elsif ($offset == 0) { |
836 |
$v = $d->{$sf}; |
837 |
} else { |
838 |
die "field $from subfield '$sf' need occurence $offset which doesn't exist", dump($d->{$sf}); |
839 |
} |
840 |
push @$m, ( $sf, $v ) if (defined($v)); |
841 |
} |
842 |
|
843 |
if ($#{$m} > 2) { |
844 |
push @{ $marc_record->[ $marc_record_offset ] }, $m; |
845 |
} |
846 |
} |
847 |
|
848 |
warn "## marc_record = ", dump( $marc_record ),$/ if ($debug > 1); |
849 |
} |
850 |
|
851 |
=head2 marc_count |
852 |
|
853 |
Return number of MARC records created using L</marc_duplicate>. |
854 |
|
855 |
print "created ", marc_count(), " records"; |
856 |
|
857 |
=cut |
858 |
|
859 |
sub marc_count { |
860 |
return $#{ $marc_record }; |
861 |
} |
862 |
|
863 |
|
864 |
=head1 Functions to extract data from input |
865 |
|
866 |
This function should be used inside functions to create C<data_structure> described |
867 |
above. |
868 |
|
869 |
=head2 _pack_subfields_hash |
870 |
|
871 |
@subfields = _pack_subfields_hash( $h ); |
872 |
$subfields = _pack_subfields_hash( $h, 1 ); |
873 |
|
874 |
Return each subfield value in array or pack them all together and return scalar |
875 |
with subfields (denoted by C<^>) and values. |
876 |
|
877 |
=cut |
878 |
|
879 |
sub _pack_subfields_hash { |
880 |
|
881 |
warn "## _pack_subfields_hash( ",dump(@_), " )\n" if ($debug > 1); |
882 |
|
883 |
my ($h,$include_subfields) = @_; |
884 |
|
885 |
# sanity and ease of use |
886 |
return $h if (ref($h) ne 'HASH'); |
887 |
|
888 |
if ( defined($h->{subfields}) ) { |
889 |
my $sfs = delete $h->{subfields} || die "no subfields?"; |
890 |
my @out; |
891 |
while (@$sfs) { |
892 |
my $sf = shift @$sfs; |
893 |
push @out, '^' . $sf if ($include_subfields); |
894 |
my $o = shift @$sfs; |
895 |
if ($o == 0 && ref( $h->{$sf} ) ne 'ARRAY' ) { |
896 |
# single element subfields are not arrays |
897 |
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
898 |
|
899 |
push @out, $h->{$sf}; |
900 |
} else { |
901 |
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
902 |
push @out, $h->{$sf}->[$o]; |
903 |
} |
904 |
} |
905 |
if ($include_subfields) { |
906 |
return join('', @out); |
907 |
} else { |
908 |
return @out; |
909 |
} |
910 |
} else { |
911 |
if ($include_subfields) { |
912 |
my $out = ''; |
913 |
foreach my $sf (sort keys %$h) { |
914 |
if (ref($h->{$sf}) eq 'ARRAY') { |
915 |
$out .= '^' . $sf . join('^' . $sf, @{ $h->{$sf} }); |
916 |
} else { |
917 |
$out .= '^' . $sf . $h->{$sf}; |
918 |
} |
919 |
} |
920 |
return $out; |
921 |
} else { |
922 |
# FIXME this should probably be in alphabetical order instead of hash order |
923 |
values %{$h}; |
924 |
} |
925 |
} |
926 |
} |
927 |
|
928 |
=head2 rec1 |
929 |
|
930 |
Return all values in some field |
931 |
|
932 |
@v = rec1('200') |
933 |
|
934 |
TODO: order of values is probably same as in source data, need to investigate that |
935 |
|
936 |
=cut |
937 |
|
938 |
sub rec1 { |
939 |
my $f = shift; |
940 |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
941 |
return unless (defined($rec) && defined($rec->{$f})); |
942 |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
943 |
if (ref($rec->{$f}) eq 'ARRAY') { |
944 |
my @out; |
945 |
foreach my $h ( @{ $rec->{$f} } ) { |
946 |
if (ref($h) eq 'HASH') { |
947 |
push @out, ( _pack_subfields_hash( $h ) ); |
948 |
} else { |
949 |
push @out, $h; |
950 |
} |
951 |
} |
952 |
return @out; |
953 |
} elsif( defined($rec->{$f}) ) { |
954 |
return $rec->{$f}; |
955 |
} |
956 |
} |
957 |
|
958 |
=head2 rec2 |
959 |
|
960 |
Return all values in specific field and subfield |
961 |
|
962 |
@v = rec2('200','a') |
963 |
|
964 |
=cut |
965 |
|
966 |
sub rec2 { |
967 |
my $f = shift; |
968 |
return unless (defined($rec && $rec->{$f})); |
969 |
my $sf = shift; |
970 |
warn "rec2($f,$sf) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
971 |
return map { |
972 |
if (ref($_->{$sf}) eq 'ARRAY') { |
973 |
@{ $_->{$sf} }; |
974 |
} else { |
975 |
$_->{$sf}; |
976 |
} |
977 |
} grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
978 |
} |
979 |
|
980 |
=head2 rec |
981 |
|
982 |
syntaxtic sugar for |
983 |
|
984 |
@v = rec('200') |
985 |
@v = rec('200','a') |
986 |
|
987 |
If rec() returns just single value, it will |
988 |
return scalar, not array. |
989 |
|
990 |
=cut |
991 |
|
992 |
sub rec { |
993 |
my @out; |
994 |
if ($#_ == 0) { |
995 |
@out = rec1(@_); |
996 |
} elsif ($#_ == 1) { |
997 |
@out = rec2(@_); |
998 |
} |
999 |
if ($#out == 0 && ! wantarray) { |
1000 |
return $out[0]; |
1001 |
} elsif (@out) { |
1002 |
return @out; |
1003 |
} else { |
1004 |
return ''; |
1005 |
} |
1006 |
} |
1007 |
|
1008 |
=head2 regex |
1009 |
|
1010 |
Apply regex to some or all values |
1011 |
|
1012 |
@v = regex( 's/foo/bar/g', @v ); |
1013 |
|
1014 |
=cut |
1015 |
|
1016 |
sub regex { |
1017 |
my $r = shift; |
1018 |
my @out; |
1019 |
#warn "r: $r\n", dump(\@_); |
1020 |
foreach my $t (@_) { |
1021 |
next unless ($t); |
1022 |
eval "\$t =~ $r"; |
1023 |
push @out, $t if ($t && $t ne ''); |
1024 |
} |
1025 |
return @out; |
1026 |
} |
1027 |
|
1028 |
=head2 prefix |
1029 |
|
1030 |
Prefix all values with a string |
1031 |
|
1032 |
@v = prefix( 'my_', @v ); |
1033 |
|
1034 |
=cut |
1035 |
|
1036 |
sub prefix { |
1037 |
my $p = shift; |
1038 |
return @_ unless defined( $p ); |
1039 |
return map { $p . $_ } grep { defined($_) } @_; |
1040 |
} |
1041 |
|
1042 |
=head2 suffix |
1043 |
|
1044 |
suffix all values with a string |
1045 |
|
1046 |
@v = suffix( '_my', @v ); |
1047 |
|
1048 |
=cut |
1049 |
|
1050 |
sub suffix { |
1051 |
my $s = shift; |
1052 |
return @_ unless defined( $s ); |
1053 |
return map { $_ . $s } grep { defined($_) } @_; |
1054 |
} |
1055 |
|
1056 |
=head2 surround |
1057 |
|
1058 |
surround all values with a two strings |
1059 |
|
1060 |
@v = surround( 'prefix_', '_suffix', @v ); |
1061 |
|
1062 |
=cut |
1063 |
|
1064 |
sub surround { |
1065 |
my $p = shift; |
1066 |
my $s = shift; |
1067 |
$p = '' unless defined( $p ); |
1068 |
$s = '' unless defined( $s ); |
1069 |
return map { $p . $_ . $s } grep { defined($_) } @_; |
1070 |
} |
1071 |
|
1072 |
=head2 first |
1073 |
|
1074 |
Return first element |
1075 |
|
1076 |
$v = first( @v ); |
1077 |
|
1078 |
=cut |
1079 |
|
1080 |
sub first { |
1081 |
my $r = shift; |
1082 |
return $r; |
1083 |
} |
1084 |
|
1085 |
=head2 lookup |
1086 |
|
1087 |
Consult lookup hashes for some value |
1088 |
|
1089 |
@v = lookup( |
1090 |
sub { |
1091 |
'ffkk/peri/mfn'.rec('000') |
1092 |
}, |
1093 |
'ffkk','peri','200-a-200-e', |
1094 |
sub { |
1095 |
first(rec(200,'a')).' '.first(rec('200','e')) |
1096 |
} |
1097 |
); |
1098 |
|
1099 |
Code like above will be B<automatically generated> using L<WebPAC::Parse> from |
1100 |
normal lookup definition in C<conf/lookup/something.pl> which looks like: |
1101 |
|
1102 |
lookup( |
1103 |
# which results to return from record recorded in lookup |
1104 |
sub { 'ffkk/peri/mfn' . rec('000') }, |
1105 |
# from which database and input |
1106 |
'ffkk','peri', |
1107 |
# such that following values match |
1108 |
sub { first(rec(200,'a')) . ' ' . first(rec('200','e')) }, |
1109 |
# if this part is missing, we will try to match same fields |
1110 |
# from lookup record and current one, or you can override |
1111 |
# which records to use from current record using |
1112 |
sub { rec('900','x') . ' ' . rec('900','y') }, |
1113 |
) |
1114 |
|
1115 |
You can think about this lookup as SQL (if that helps): |
1116 |
|
1117 |
select |
1118 |
sub { what } |
1119 |
from |
1120 |
database, input |
1121 |
where |
1122 |
sub { filter from lookuped record } |
1123 |
having |
1124 |
sub { optional filter on current record } |
1125 |
|
1126 |
Easy as pie, right? |
1127 |
|
1128 |
=cut |
1129 |
|
1130 |
sub lookup { |
1131 |
my ($what, $database, $input, $key, $having) = @_; |
1132 |
|
1133 |
confess "lookup needs 5 arguments: what, database, input, key, having\n" unless ($#_ == 4); |
1134 |
|
1135 |
warn "## lookup ($database, $input, $key)", $/ if ($debug > 1); |
1136 |
return unless (defined($lookup->{$database}->{$input}->{$key})); |
1137 |
|
1138 |
confess "lookup really need load_row_coderef added to data_structure\n" unless ($load_row_coderef); |
1139 |
|
1140 |
my $mfns; |
1141 |
my @having = $having->(); |
1142 |
|
1143 |
warn "## having = ", dump( @having ) if ($debug > 2); |
1144 |
|
1145 |
foreach my $h ( @having ) { |
1146 |
if (defined($lookup->{$database}->{$input}->{$key}->{$h})) { |
1147 |
warn "lookup for $database/$input/$key/$h return ",dump($lookup->{$database}->{$input}->{$key}->{$h}),"\n" if ($debug); |
1148 |
$mfns->{$_}++ foreach keys %{ $lookup->{$database}->{$input}->{$key}->{$h} }; |
1149 |
} |
1150 |
} |
1151 |
|
1152 |
return unless ($mfns); |
1153 |
|
1154 |
my @mfns = sort keys %$mfns; |
1155 |
|
1156 |
warn "# lookup loading $database/$input/$key mfn ", join(",",@mfns)," having ",dump(@having),"\n" if ($debug); |
1157 |
|
1158 |
my $old_rec = $rec; |
1159 |
my @out; |
1160 |
|
1161 |
foreach my $mfn (@mfns) { |
1162 |
$rec = $load_row_coderef->( $database, $input, $mfn ); |
1163 |
|
1164 |
warn "got $database/$input/$mfn = ", dump($rec), $/ if ($debug); |
1165 |
|
1166 |
my @vals = $what->(); |
1167 |
|
1168 |
push @out, ( @vals ); |
1169 |
|
1170 |
warn "lookup for mfn $mfn returned ", dump(@vals), $/ if ($debug); |
1171 |
} |
1172 |
|
1173 |
# if (ref($lookup->{$k}) eq 'ARRAY') { |
1174 |
# return @{ $lookup->{$k} }; |
1175 |
# } else { |
1176 |
# return $lookup->{$k}; |
1177 |
# } |
1178 |
|
1179 |
$rec = $old_rec; |
1180 |
|
1181 |
warn "## lookup returns = ", dump(@out), $/ if ($debug); |
1182 |
|
1183 |
if ($#out == 0) { |
1184 |
return $out[0]; |
1185 |
} else { |
1186 |
return @out; |
1187 |
} |
1188 |
} |
1189 |
|
1190 |
=head2 save_into_lookup |
1191 |
|
1192 |
Save value into lookup. It associates current database, input |
1193 |
and specific keys with one or more values which will be |
1194 |
associated over MFN. |
1195 |
|
1196 |
MFN will be extracted from first occurence current of field 000 |
1197 |
in current record, or if it doesn't exist from L<_set_config> C<_mfn>. |
1198 |
|
1199 |
my $nr = save_into_lookup($database,$input,$key,sub { |
1200 |
# code which produce one or more values |
1201 |
}); |
1202 |
|
1203 |
It returns number of items saved. |
1204 |
|
1205 |
This function shouldn't be called directly, it's called from code created by |
1206 |
L<WebPAC::Parser>. |
1207 |
|
1208 |
=cut |
1209 |
|
1210 |
sub save_into_lookup { |
1211 |
my ($database,$input,$key,$coderef) = @_; |
1212 |
die "save_into_lookup needs database" unless defined($database); |
1213 |
die "save_into_lookup needs input" unless defined($input); |
1214 |
die "save_into_lookup needs key" unless defined($key); |
1215 |
die "save_into_lookup needs CODE" unless ( defined($coderef) && ref($coderef) eq 'CODE' ); |
1216 |
|
1217 |
warn "## save_into_lookup rec = ", dump($rec), " config = ", dump($config), $/ if ($debug > 2); |
1218 |
|
1219 |
my $mfn = |
1220 |
defined($rec->{'000'}->[0]) ? $rec->{'000'}->[0] : |
1221 |
defined($config->{_mfn}) ? $config->{_mfn} : |
1222 |
die "mfn not defined or zero"; |
1223 |
|
1224 |
my $nr = 0; |
1225 |
|
1226 |
foreach my $v ( $coderef->() ) { |
1227 |
$lookup->{$database}->{$input}->{$key}->{$v}->{$mfn}++; |
1228 |
warn "# saved lookup $database/$input/$key [$v] $mfn\n" if ($debug > 1); |
1229 |
$nr++; |
1230 |
} |
1231 |
|
1232 |
return $nr; |
1233 |
} |
1234 |
|
1235 |
=head2 config |
1236 |
|
1237 |
Consult config values stored in C<config.yml> |
1238 |
|
1239 |
# return database code (key under databases in yaml) |
1240 |
$database_code = config(); # use _ from hash |
1241 |
$database_name = config('name'); |
1242 |
$database_input_name = config('input name'); |
1243 |
|
1244 |
Up to three levels are supported. |
1245 |
|
1246 |
=cut |
1247 |
|
1248 |
sub config { |
1249 |
return unless ($config); |
1250 |
|
1251 |
my $p = shift; |
1252 |
|
1253 |
$p ||= ''; |
1254 |
|
1255 |
my $v; |
1256 |
|
1257 |
warn "### getting config($p)\n" if ($debug > 1); |
1258 |
|
1259 |
my @p = split(/\s+/,$p); |
1260 |
if ($#p < 0) { |
1261 |
$v = $config->{ '_' }; # special, database code |
1262 |
} else { |
1263 |
|
1264 |
my $c = dclone( $config ); |
1265 |
|
1266 |
foreach my $k (@p) { |
1267 |
warn "### k: $k c = ",dump($c),$/ if ($debug > 1); |
1268 |
if (ref($c) eq 'ARRAY') { |
1269 |
$c = shift @$c; |
1270 |
warn "config($p) taking first occurence of '$k', probably not what you wanted!\n"; |
1271 |
last; |
1272 |
} |
1273 |
|
1274 |
if (! defined($c->{$k}) ) { |
1275 |
$c = undef; |
1276 |
last; |
1277 |
} else { |
1278 |
$c = $c->{$k}; |
1279 |
} |
1280 |
} |
1281 |
$v = $c if ($c); |
1282 |
|
1283 |
} |
1284 |
|
1285 |
warn "## config( '$p' ) = ",dump( $v ),$/ if ($v && $debug); |
1286 |
warn "config( '$p' ) is empty\n" if (! $v); |
1287 |
|
1288 |
return $v; |
1289 |
} |
1290 |
|
1291 |
=head2 id |
1292 |
|
1293 |
Returns unique id of this record |
1294 |
|
1295 |
$id = id(); |
1296 |
|
1297 |
Returns C<42/2> for 2nd occurence of MFN 42. |
1298 |
|
1299 |
=cut |
1300 |
|
1301 |
sub id { |
1302 |
my $mfn = $config->{_mfn} || die "no _mfn in config data"; |
1303 |
return $mfn . $#{$marc_record} ? $#{$marc_record} + 1 : ''; |
1304 |
} |
1305 |
|
1306 |
=head2 join_with |
1307 |
|
1308 |
Joins walues with some delimiter |
1309 |
|
1310 |
$v = join_with(", ", @v); |
1311 |
|
1312 |
=cut |
1313 |
|
1314 |
sub join_with { |
1315 |
my $d = shift; |
1316 |
warn "### join_with('$d',",dump(@_),")\n" if ($debug > 2); |
1317 |
my $v = join($d, grep { defined($_) && $_ ne '' } @_); |
1318 |
return '' unless defined($v); |
1319 |
return $v; |
1320 |
} |
1321 |
|
1322 |
=head2 split_rec_on |
1323 |
|
1324 |
Split record subfield on some regex and take one of parts out |
1325 |
|
1326 |
$a_before_semi_column = |
1327 |
split_rec_on('200','a', /\s*;\s*/, $part); |
1328 |
|
1329 |
C<$part> is optional number of element. First element is |
1330 |
B<1>, not 0! |
1331 |
|
1332 |
If there is no C<$part> parameter or C<$part> is 0, this function will |
1333 |
return all values produced by splitting. |
1334 |
|
1335 |
=cut |
1336 |
|
1337 |
sub split_rec_on { |
1338 |
die "split_rec_on need (fld,sf,regex[,part]" if ($#_ < 2); |
1339 |
|
1340 |
my ($fld, $sf, $regex, $part) = @_; |
1341 |
warn "### regex ", ref($regex), $regex, $/ if ($debug > 2); |
1342 |
|
1343 |
my @r = rec( $fld, $sf ); |
1344 |
my $v = shift @r; |
1345 |
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
1346 |
|
1347 |
return '' if ( ! defined($v) || $v =~ /^\s*$/); |
1348 |
|
1349 |
my @s = split( $regex, $v ); |
1350 |
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
1351 |
if ($part && $part > 0) { |
1352 |
return $s[ $part - 1 ]; |
1353 |
} else { |
1354 |
return @s; |
1355 |
} |
1356 |
} |
1357 |
|
1358 |
my $hash; |
1359 |
|
1360 |
=head2 set |
1361 |
|
1362 |
set( key => 'value' ); |
1363 |
|
1364 |
=cut |
1365 |
|
1366 |
sub set { |
1367 |
my ($k,$v) = @_; |
1368 |
warn "## set ( $k => ", dump($v), " )", $/ if ( $debug ); |
1369 |
$hash->{$k} = $v; |
1370 |
}; |
1371 |
|
1372 |
=head2 get |
1373 |
|
1374 |
get( 'key' ); |
1375 |
|
1376 |
=cut |
1377 |
|
1378 |
sub get { |
1379 |
my $k = shift || return; |
1380 |
my $v = $hash->{$k}; |
1381 |
warn "## get $k = ", dump( $v ), $/ if ( $debug ); |
1382 |
return $v; |
1383 |
} |
1384 |
|
1385 |
=head2 count |
1386 |
|
1387 |
if ( count( @result ) == 1 ) { |
1388 |
# do something if only 1 result is there |
1389 |
} |
1390 |
|
1391 |
=cut |
1392 |
|
1393 |
sub count { |
1394 |
warn "## count ",dump(@_),$/ if ( $debug ); |
1395 |
return @_ . ''; |
1396 |
} |
1397 |
|
1398 |
# END |
1399 |
1; |