| 1 |
package WebPAC::Normalize; |
| 2 |
use Exporter 'import'; |
| 3 |
our @EXPORT = qw/ |
| 4 |
_set_ds _set_lookup |
| 5 |
_set_load_row |
| 6 |
_get_ds _clean_ds |
| 7 |
_debug |
| 8 |
_pack_subfields_hash |
| 9 |
|
| 10 |
search_display search display sorted |
| 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 |
| 16 |
marc_template |
| 17 |
|
| 18 |
rec1 rec2 rec |
| 19 |
frec frec_eq frec_ne |
| 20 |
regex prefix suffix surround |
| 21 |
first lookup join_with |
| 22 |
save_into_lookup |
| 23 |
|
| 24 |
split_rec_on |
| 25 |
|
| 26 |
get set |
| 27 |
count |
| 28 |
|
| 29 |
/; |
| 30 |
|
| 31 |
use warnings; |
| 32 |
use strict; |
| 33 |
|
| 34 |
#use base qw/WebPAC::Common/; |
| 35 |
use Data::Dump qw/dump/; |
| 36 |
use Storable qw/dclone/; |
| 37 |
use Carp qw/confess/; |
| 38 |
|
| 39 |
# debugging warn(s) |
| 40 |
my $debug = 0; |
| 41 |
|
| 42 |
use WebPAC::Normalize::ISBN; |
| 43 |
push @EXPORT, ( 'isbn_10', 'isbn_13' ); |
| 44 |
|
| 45 |
=head1 NAME |
| 46 |
|
| 47 |
WebPAC::Normalize - describe normalisaton rules using sets |
| 48 |
|
| 49 |
=cut |
| 50 |
|
| 51 |
our $VERSION = '0.34'; |
| 52 |
|
| 53 |
=head1 SYNOPSIS |
| 54 |
|
| 55 |
This module uses C<conf/normalize/*.pl> files to perform normalisation |
| 56 |
from input records using perl functions which are specialized for set |
| 57 |
processing. |
| 58 |
|
| 59 |
Sets are implemented as arrays, and normalisation file is valid perl, which |
| 60 |
means that you check it's validity before running WebPAC using |
| 61 |
C<perl -c normalize.pl>. |
| 62 |
|
| 63 |
Normalisation can generate multiple output normalized data. For now, supported output |
| 64 |
types (on the left side of definition) are: C<search_display>, C<display>, C<search> and |
| 65 |
C<marc>. |
| 66 |
|
| 67 |
=head1 FUNCTIONS |
| 68 |
|
| 69 |
Functions which start with C<_> are private and used by WebPAC internally. |
| 70 |
All other functions are available for use within normalisation rules. |
| 71 |
|
| 72 |
=head2 data_structure |
| 73 |
|
| 74 |
Return data structure |
| 75 |
|
| 76 |
my $ds = WebPAC::Normalize::data_structure( |
| 77 |
lookup => $lookup_hash, |
| 78 |
row => $row, |
| 79 |
rules => $normalize_pl_config, |
| 80 |
marc_encoding => 'utf-8', |
| 81 |
config => $config, |
| 82 |
load_row_coderef => sub { |
| 83 |
my ($database,$input,$mfn) = @_; |
| 84 |
$store->load_row( database => $database, input => $input, id => $mfn ); |
| 85 |
}, |
| 86 |
); |
| 87 |
|
| 88 |
Options C<row>, C<rules> and C<log> are mandatory while all |
| 89 |
other are optional. |
| 90 |
|
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C<load_row_coderef> is closure only used when executing lookups, so they will |
| 92 |
die if it's not defined. |
| 93 |
|
| 94 |
This function will B<die> if normalizastion can't be evaled. |
| 95 |
|
| 96 |
Since this function isn't exported you have to call it with |
| 97 |
C<WebPAC::Normalize::data_structure>. |
| 98 |
|
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=cut |
| 100 |
|
| 101 |
my $load_row_coderef; |
| 102 |
|
| 103 |
sub data_structure { |
| 104 |
my $arg = {@_}; |
| 105 |
|
| 106 |
die "need row argument" unless ($arg->{row}); |
| 107 |
die "need normalisation argument" unless ($arg->{rules}); |
| 108 |
|
| 109 |
_set_lookup( $arg->{lookup} ) if defined($arg->{lookup}); |
| 110 |
_set_ds( $arg->{row} ); |
| 111 |
_set_config( $arg->{config} ) if defined($arg->{config}); |
| 112 |
_clean_ds( %{ $arg } ); |
| 113 |
$load_row_coderef = $arg->{load_row_coderef}; |
| 114 |
|
| 115 |
no strict 'subs'; |
| 116 |
no warnings 'redefine'; |
| 117 |
eval "$arg->{rules};"; |
| 118 |
die "error evaling $arg->{rules}: $@\n" if ($@); |
| 119 |
|
| 120 |
return _get_ds(); |
| 121 |
} |
| 122 |
|
| 123 |
=head2 _set_ds |
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|
| 125 |
Set current record hash |
| 126 |
|
| 127 |
_set_ds( $rec ); |
| 128 |
|
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=cut |
| 130 |
|
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my $rec; |
| 132 |
|
| 133 |
sub _set_ds { |
| 134 |
$rec = shift or die "no record hash"; |
| 135 |
} |
| 136 |
|
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=head2 _set_config |
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|
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Set current config hash |
| 140 |
|
| 141 |
_set_config( $config ); |
| 142 |
|
| 143 |
Magic keys are: |
| 144 |
|
| 145 |
=over 4 |
| 146 |
|
| 147 |
=item _ |
| 148 |
|
| 149 |
Code of current database |
| 150 |
|
| 151 |
=item _mfn |
| 152 |
|
| 153 |
Current MFN |
| 154 |
|
| 155 |
=back |
| 156 |
|
| 157 |
=cut |
| 158 |
|
| 159 |
my $config; |
| 160 |
|
| 161 |
sub _set_config { |
| 162 |
$config = shift; |
| 163 |
} |
| 164 |
|
| 165 |
=head2 _get_ds |
| 166 |
|
| 167 |
Return hash formatted as data structure |
| 168 |
|
| 169 |
my $ds = _get_ds(); |
| 170 |
|
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=cut |
| 172 |
|
| 173 |
my ($out, $marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators, $marc_leader); |
| 174 |
my ($marc_record_offset, $marc_fetch_offset) = (0, 0); |
| 175 |
|
| 176 |
sub _get_ds { |
| 177 |
#warn "## out = ",dump($out); |
| 178 |
return $out; |
| 179 |
} |
| 180 |
|
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=head2 _clean_ds |
| 182 |
|
| 183 |
Clean data structure hash for next record |
| 184 |
|
| 185 |
_clean_ds(); |
| 186 |
|
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=cut |
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|
| 189 |
sub _clean_ds { |
| 190 |
my $a = {@_}; |
| 191 |
($out,$marc_record, $marc_encoding, $marc_repeatable_subfield, $marc_indicators, $marc_leader) = (); |
| 192 |
($marc_record_offset, $marc_fetch_offset) = (0,0); |
| 193 |
$marc_encoding = $a->{marc_encoding}; |
| 194 |
} |
| 195 |
|
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=head2 _set_lookup |
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|
| 198 |
Set current lookup hash |
| 199 |
|
| 200 |
_set_lookup( $lookup ); |
| 201 |
|
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=cut |
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|
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my $lookup; |
| 205 |
|
| 206 |
sub _set_lookup { |
| 207 |
$lookup = shift; |
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} |
| 209 |
|
| 210 |
=head2 _get_lookup |
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|
| 212 |
Get current lookup hash |
| 213 |
|
| 214 |
my $lookup = _get_lookup(); |
| 215 |
|
| 216 |
=cut |
| 217 |
|
| 218 |
sub _get_lookup { |
| 219 |
return $lookup; |
| 220 |
} |
| 221 |
|
| 222 |
=head2 _set_load_row |
| 223 |
|
| 224 |
Setup code reference which will return L<data_structure> from |
| 225 |
L<WebPAC::Store> |
| 226 |
|
| 227 |
_set_load_row(sub { |
| 228 |
my ($database,$input,$mfn) = @_; |
| 229 |
$store->load_row( database => $database, input => $input, id => $mfn ); |
| 230 |
}); |
| 231 |
|
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=cut |
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|
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sub _set_load_row { |
| 235 |
my $coderef = shift; |
| 236 |
confess "argument isn't CODE" unless ref($coderef) eq 'CODE'; |
| 237 |
|
| 238 |
$load_row_coderef = $coderef; |
| 239 |
} |
| 240 |
|
| 241 |
=head2 _get_marc_fields |
| 242 |
|
| 243 |
Get all fields defined by calls to C<marc> |
| 244 |
|
| 245 |
$marc->add_fields( WebPAC::Normalize:_get_marc_fields() ); |
| 246 |
|
| 247 |
We are using I<magic> which detect repeatable fields only from |
| 248 |
sequence of field/subfield data generated by normalization. |
| 249 |
|
| 250 |
Repeatable field is created when there is second occurence of same subfield or |
| 251 |
if any of indicators are different. |
| 252 |
|
| 253 |
This is sane for most cases. Something like: |
| 254 |
|
| 255 |
900a-1 900b-1 900c-1 |
| 256 |
900a-2 900b-2 |
| 257 |
900a-3 |
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|
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will be created from any combination of: |
| 260 |
|
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900a-1 900a-2 900a-3 900b-1 900b-2 900c-1 |
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|
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and following rules: |
| 264 |
|
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marc('900','a', rec('200','a') ); |
| 266 |
marc('900','b', rec('200','b') ); |
| 267 |
marc('900','c', rec('200','c') ); |
| 268 |
|
| 269 |
which might not be what you have in mind. If you need repeatable subfield, |
| 270 |
define it using C<marc_repeatable_subfield> like this: |
| 271 |
|
| 272 |
marc_repeatable_subfield('900','a'); |
| 273 |
marc('900','a', rec('200','a') ); |
| 274 |
marc('900','b', rec('200','b') ); |
| 275 |
marc('900','c', rec('200','c') ); |
| 276 |
|
| 277 |
will create: |
| 278 |
|
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900a-1 900a-2 900a-3 900b-1 900c-1 |
| 280 |
900b-2 |
| 281 |
|
| 282 |
There is also support for returning next or specific using: |
| 283 |
|
| 284 |
while (my $mf = WebPAC::Normalize:_get_marc_fields( fetch_next => 1 ) ) { |
| 285 |
# do something with $mf |
| 286 |
} |
| 287 |
|
| 288 |
will always return fields from next MARC record or |
| 289 |
|
| 290 |
my $mf = WebPAC::Normalize::_get_marc_fields( offset => 42 ); |
| 291 |
|
| 292 |
will return 42th copy record (if it exists). |
| 293 |
|
| 294 |
=cut |
| 295 |
|
| 296 |
my $fetch_pos; |
| 297 |
|
| 298 |
sub _get_marc_fields { |
| 299 |
|
| 300 |
my $arg = {@_}; |
| 301 |
warn "### _get_marc_fields arg: ", dump($arg), $/ if ($debug > 2); |
| 302 |
$fetch_pos = $marc_fetch_offset; |
| 303 |
if ($arg->{offset}) { |
| 304 |
$fetch_pos = $arg->{offset}; |
| 305 |
} elsif($arg->{fetch_next}) { |
| 306 |
$marc_fetch_offset++; |
| 307 |
} |
| 308 |
|
| 309 |
return if (! $marc_record || ref($marc_record) ne 'ARRAY'); |
| 310 |
|
| 311 |
warn "### full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 2); |
| 312 |
|
| 313 |
my $marc_rec = $marc_record->[ $fetch_pos ]; |
| 314 |
|
| 315 |
warn "## _get_marc_fields (at offset: $fetch_pos) -- marc_record = ", dump( @$marc_rec ), $/ if ($debug > 1); |
| 316 |
|
| 317 |
return if (! $marc_rec || ref($marc_rec) ne 'ARRAY' || $#{ $marc_rec } < 0); |
| 318 |
|
| 319 |
# first, sort all existing fields |
| 320 |
# XXX might not be needed, but modern perl might randomize elements in hash |
| 321 |
my @sorted_marc_record = sort { |
| 322 |
$a->[0] . ( $a->[3] || '' ) cmp $b->[0] . ( $b->[3] || '') |
| 323 |
} @{ $marc_rec }; |
| 324 |
|
| 325 |
@sorted_marc_record = @{ $marc_rec }; ### FIXME disable sorting |
| 326 |
|
| 327 |
# output marc fields |
| 328 |
my @m; |
| 329 |
|
| 330 |
# count unique field-subfields (used for offset when walking to next subfield) |
| 331 |
my $u; |
| 332 |
map { $u->{ $_->[0] . ( $_->[3] || '') }++ } @sorted_marc_record; |
| 333 |
|
| 334 |
if ($debug) { |
| 335 |
warn "## marc_repeatable_subfield = ", dump( $marc_repeatable_subfield ), $/ if ( $marc_repeatable_subfield ); |
| 336 |
warn "## marc_record[$fetch_pos] = ", dump( $marc_rec ), $/; |
| 337 |
warn "## sorted_marc_record = ", dump( \@sorted_marc_record ), $/; |
| 338 |
warn "## subfield count = ", dump( $u ), $/; |
| 339 |
} |
| 340 |
|
| 341 |
my $len = $#sorted_marc_record; |
| 342 |
my $visited; |
| 343 |
my $i = 0; |
| 344 |
my $field; |
| 345 |
|
| 346 |
foreach ( 0 .. $len ) { |
| 347 |
|
| 348 |
# find next element which isn't visited |
| 349 |
while ($visited->{$i}) { |
| 350 |
$i = ($i + 1) % ($len + 1); |
| 351 |
} |
| 352 |
|
| 353 |
# mark it visited |
| 354 |
$visited->{$i}++; |
| 355 |
|
| 356 |
my $row = dclone( $sorted_marc_record[$i] ); |
| 357 |
|
| 358 |
# field and subfield which is key for |
| 359 |
# marc_repeatable_subfield and u |
| 360 |
my $fsf = $row->[0] . ( $row->[3] || '' ); |
| 361 |
|
| 362 |
if ($debug > 1) { |
| 363 |
|
| 364 |
print "### field so far [", $#$field, "] : ", dump( $field ), " ", $field ? 'T' : 'F', $/; |
| 365 |
print "### this [$i]: ", dump( $row ),$/; |
| 366 |
print "### sf: ", $row->[3], " vs ", $field->[3], |
| 367 |
$marc_repeatable_subfield->{ $row->[0] . $row->[3] } ? ' (repeatable)' : '', $/, |
| 368 |
if ($#$field >= 0); |
| 369 |
|
| 370 |
} |
| 371 |
|
| 372 |
# if field exists |
| 373 |
if ( $#$field >= 0 ) { |
| 374 |
if ( |
| 375 |
$row->[0] ne $field->[0] || # field |
| 376 |
$row->[1] ne $field->[1] || # i1 |
| 377 |
$row->[2] ne $field->[2] # i2 |
| 378 |
) { |
| 379 |
push @m, $field; |
| 380 |
warn "## saved/1 ", dump( $field ),$/ if ($debug); |
| 381 |
$field = $row; |
| 382 |
|
| 383 |
} elsif ( |
| 384 |
( $row->[3] lt $field->[-2] ) # subfield which is not next (e.g. a after c) |
| 385 |
|| |
| 386 |
( $row->[3] eq $field->[-2] && # same subfield, but not repeatable |
| 387 |
! $marc_repeatable_subfield->{ $fsf } |
| 388 |
) |
| 389 |
) { |
| 390 |
push @m, $field; |
| 391 |
warn "## saved/2 ", dump( $field ),$/ if ($debug); |
| 392 |
$field = $row; |
| 393 |
|
| 394 |
} else { |
| 395 |
# append new subfields to existing field |
| 396 |
push @$field, ( $row->[3], $row->[4] ); |
| 397 |
} |
| 398 |
} else { |
| 399 |
# insert first field |
| 400 |
$field = $row; |
| 401 |
} |
| 402 |
|
| 403 |
if (! $marc_repeatable_subfield->{ $fsf }) { |
| 404 |
# make step to next subfield |
| 405 |
$i = ($i + $u->{ $fsf } ) % ($len + 1); |
| 406 |
} |
| 407 |
} |
| 408 |
|
| 409 |
if ($#$field >= 0) { |
| 410 |
push @m, $field; |
| 411 |
warn "## saved/3 ", dump( $field ),$/ if ($debug); |
| 412 |
} |
| 413 |
|
| 414 |
return \@m; |
| 415 |
} |
| 416 |
|
| 417 |
=head2 _get_marc_leader |
| 418 |
|
| 419 |
Return leader from currently fetched record by L</_get_marc_fields> |
| 420 |
|
| 421 |
print WebPAC::Normalize::_get_marc_leader(); |
| 422 |
|
| 423 |
=cut |
| 424 |
|
| 425 |
sub _get_marc_leader { |
| 426 |
die "no fetch_pos, did you called _get_marc_fields first?" unless ( defined( $fetch_pos ) ); |
| 427 |
return $marc_leader->[ $fetch_pos ]; |
| 428 |
} |
| 429 |
|
| 430 |
=head2 _debug |
| 431 |
|
| 432 |
Change level of debug warnings |
| 433 |
|
| 434 |
_debug( 2 ); |
| 435 |
|
| 436 |
=cut |
| 437 |
|
| 438 |
sub _debug { |
| 439 |
my $l = shift; |
| 440 |
return $debug unless defined($l); |
| 441 |
warn "debug level $l",$/ if ($l > 0); |
| 442 |
$debug = $l; |
| 443 |
} |
| 444 |
|
| 445 |
=head1 Functions to create C<data_structure> |
| 446 |
|
| 447 |
Those functions generally have to first in your normalization file. |
| 448 |
|
| 449 |
=head2 search_display |
| 450 |
|
| 451 |
Define output for L<search> and L<display> at the same time |
| 452 |
|
| 453 |
search_display('Title', rec('200','a') ); |
| 454 |
|
| 455 |
|
| 456 |
=cut |
| 457 |
|
| 458 |
sub search_display { |
| 459 |
my $name = shift or die "search_display needs name as first argument"; |
| 460 |
my @o = grep { defined($_) && $_ ne '' } @_; |
| 461 |
return unless (@o); |
| 462 |
$out->{$name}->{search} = \@o; |
| 463 |
$out->{$name}->{display} = \@o; |
| 464 |
} |
| 465 |
|
| 466 |
=head2 tag |
| 467 |
|
| 468 |
Old name for L<search_display>, but supported |
| 469 |
|
| 470 |
=cut |
| 471 |
|
| 472 |
sub tag { |
| 473 |
search_display( @_ ); |
| 474 |
} |
| 475 |
|
| 476 |
=head2 display |
| 477 |
|
| 478 |
Define output just for I<display> |
| 479 |
|
| 480 |
@v = display('Title', rec('200','a') ); |
| 481 |
|
| 482 |
=cut |
| 483 |
|
| 484 |
sub _field { |
| 485 |
my $type = shift or confess "need type -- BUG?"; |
| 486 |
my $name = shift or confess "needs name as first argument"; |
| 487 |
my @o = grep { defined($_) && $_ ne '' } @_; |
| 488 |
return unless (@o); |
| 489 |
$out->{$name}->{$type} = \@o; |
| 490 |
} |
| 491 |
|
| 492 |
sub display { _field( 'display', @_ ) } |
| 493 |
|
| 494 |
=head2 search |
| 495 |
|
| 496 |
Prepare values just for I<search> |
| 497 |
|
| 498 |
@v = search('Title', rec('200','a') ); |
| 499 |
|
| 500 |
=cut |
| 501 |
|
| 502 |
sub search { _field( 'search', @_ ) } |
| 503 |
|
| 504 |
=head2 sorted |
| 505 |
|
| 506 |
Insert into lists which will be automatically sorted |
| 507 |
|
| 508 |
sorted('Title', rec('200','a') ); |
| 509 |
|
| 510 |
=cut |
| 511 |
|
| 512 |
sub sorted { _field( 'sorted', @_ ) } |
| 513 |
|
| 514 |
|
| 515 |
=head2 marc_leader |
| 516 |
|
| 517 |
Setup fields within MARC leader or get leader |
| 518 |
|
| 519 |
marc_leader('05','c'); |
| 520 |
my $leader = marc_leader(); |
| 521 |
|
| 522 |
=cut |
| 523 |
|
| 524 |
sub marc_leader { |
| 525 |
my ($offset,$value) = @_; |
| 526 |
|
| 527 |
if ($offset) { |
| 528 |
$marc_leader->[ $marc_record_offset ]->{ $offset } = $value; |
| 529 |
} else { |
| 530 |
|
| 531 |
if (defined($marc_leader)) { |
| 532 |
die "marc_leader not array = ", dump( $marc_leader ) unless (ref($marc_leader) eq 'ARRAY'); |
| 533 |
return $marc_leader->[ $marc_record_offset ]; |
| 534 |
} else { |
| 535 |
return; |
| 536 |
} |
| 537 |
} |
| 538 |
} |
| 539 |
|
| 540 |
=head2 marc_fixed |
| 541 |
|
| 542 |
Create control/indentifier fields with values in fixed positions |
| 543 |
|
| 544 |
marc_fixed('008', 00, '070402'); |
| 545 |
marc_fixed('008', 39, '|'); |
| 546 |
|
| 547 |
Positions not specified will be filled with spaces (C<0x20>). |
| 548 |
|
| 549 |
There will be no effort to extend last specified value to full length of |
| 550 |
field in standard. |
| 551 |
|
| 552 |
=cut |
| 553 |
|
| 554 |
sub marc_fixed { |
| 555 |
my ($f, $pos, $val) = @_; |
| 556 |
die "need marc(field, position, value)" unless defined($f) && defined($pos); |
| 557 |
|
| 558 |
confess "need val" unless defined $val; |
| 559 |
|
| 560 |
my $update = 0; |
| 561 |
|
| 562 |
map { |
| 563 |
if ($_->[0] eq $f) { |
| 564 |
my $old = $_->[1]; |
| 565 |
if (length($old) <= $pos) { |
| 566 |
$_->[1] .= ' ' x ( $pos - length($old) ) . $val; |
| 567 |
warn "## marc_fixed($f,$pos,'$val') append '$old' -> '$_->[1]'\n" if ($debug > 1); |
| 568 |
} else { |
| 569 |
$_->[1] = substr($old, 0, $pos) . $val . substr($old, $pos + length($val)); |
| 570 |
warn "## marc_fixed($f,$pos,'$val') update '$old' -> '$_->[1]'\n" if ($debug > 1); |
| 571 |
} |
| 572 |
$update++; |
| 573 |
} |
| 574 |
} @{ $marc_record->[ $marc_record_offset ] }; |
| 575 |
|
| 576 |
if (! $update) { |
| 577 |
my $v = ' ' x $pos . $val; |
| 578 |
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $v ]; |
| 579 |
warn "## marc_fixed($f,$pos,'val') created '$v'\n" if ($debug > 1); |
| 580 |
} |
| 581 |
} |
| 582 |
|
| 583 |
=head2 marc |
| 584 |
|
| 585 |
Save value for MARC field |
| 586 |
|
| 587 |
marc('900','a', rec('200','a') ); |
| 588 |
marc('001', rec('000') ); |
| 589 |
|
| 590 |
=cut |
| 591 |
|
| 592 |
sub marc { |
| 593 |
my $f = shift or die "marc needs field"; |
| 594 |
die "marc field must be numer" unless ($f =~ /^\d+$/); |
| 595 |
|
| 596 |
my $sf; |
| 597 |
if ($f >= 10) { |
| 598 |
$sf = shift or die "marc needs subfield"; |
| 599 |
} |
| 600 |
|
| 601 |
foreach (@_) { |
| 602 |
my $v = $_; # make var read-write for Encode |
| 603 |
next unless (defined($v) && $v !~ /^\s*$/); |
| 604 |
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
| 605 |
if (defined $sf) { |
| 606 |
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $i1, $i2, $sf => $v ]; |
| 607 |
} else { |
| 608 |
push @{ $marc_record->[ $marc_record_offset ] }, [ $f, $v ]; |
| 609 |
} |
| 610 |
} |
| 611 |
} |
| 612 |
|
| 613 |
=head2 marc_repeatable_subfield |
| 614 |
|
| 615 |
Save values for MARC repetable subfield |
| 616 |
|
| 617 |
marc_repeatable_subfield('910', 'z', rec('909') ); |
| 618 |
|
| 619 |
=cut |
| 620 |
|
| 621 |
sub marc_repeatable_subfield { |
| 622 |
my ($f,$sf) = @_; |
| 623 |
die "marc_repeatable_subfield need field and subfield!\n" unless ($f && $sf); |
| 624 |
$marc_repeatable_subfield->{ $f . $sf }++; |
| 625 |
marc(@_); |
| 626 |
} |
| 627 |
|
| 628 |
=head2 marc_indicators |
| 629 |
|
| 630 |
Set both indicators for MARC field |
| 631 |
|
| 632 |
marc_indicators('900', ' ', 1); |
| 633 |
|
| 634 |
Any indicator value other than C<0-9> will be treated as undefined. |
| 635 |
|
| 636 |
=cut |
| 637 |
|
| 638 |
sub marc_indicators { |
| 639 |
my $f = shift || die "marc_indicators need field!\n"; |
| 640 |
my ($i1,$i2) = @_; |
| 641 |
die "marc_indicators($f, ...) need i1!\n" unless(defined($i1)); |
| 642 |
die "marc_indicators($f, $i1, ...) need i2!\n" unless(defined($i2)); |
| 643 |
|
| 644 |
$i1 = ' ' if ($i1 !~ /^\d$/); |
| 645 |
$i2 = ' ' if ($i2 !~ /^\d$/); |
| 646 |
@{ $marc_indicators->{$f} } = ($i1,$i2); |
| 647 |
} |
| 648 |
|
| 649 |
=head2 marc_compose |
| 650 |
|
| 651 |
Save values for each MARC subfield explicitly |
| 652 |
|
| 653 |
marc_compose('900', |
| 654 |
'a', rec('200','a') |
| 655 |
'b', rec('201','a') |
| 656 |
'a', rec('200','b') |
| 657 |
'c', rec('200','c') |
| 658 |
); |
| 659 |
|
| 660 |
If you specify C<+> for subfield, value will be appended |
| 661 |
to previous defined subfield. |
| 662 |
|
| 663 |
=cut |
| 664 |
|
| 665 |
sub marc_compose { |
| 666 |
my $f = shift or die "marc_compose needs field"; |
| 667 |
die "marc_compose field must be numer" unless ($f =~ /^\d+$/); |
| 668 |
|
| 669 |
my ($i1,$i2) = defined($marc_indicators->{$f}) ? @{ $marc_indicators->{$f} } : (' ',' '); |
| 670 |
my $m = [ $f, $i1, $i2 ]; |
| 671 |
|
| 672 |
warn "### marc_compose input subfields = ", dump(@_),$/ if ($debug > 2); |
| 673 |
|
| 674 |
if ($#_ % 2 != 1) { |
| 675 |
die "ERROR: marc_compose",dump($f,@_)," not valid (must be even).\nDo you need to add first() or join() around some argument?\n"; |
| 676 |
} |
| 677 |
|
| 678 |
while (@_) { |
| 679 |
my $sf = shift; |
| 680 |
my $v = shift; |
| 681 |
|
| 682 |
next unless (defined($v) && $v !~ /^\s*$/); |
| 683 |
warn "## ++ marc_compose($f,$sf,$v) ", dump( $m ),$/ if ($debug > 1); |
| 684 |
if ($sf ne '+') { |
| 685 |
push @$m, ( $sf, $v ); |
| 686 |
} else { |
| 687 |
$m->[ $#$m ] .= $v; |
| 688 |
} |
| 689 |
} |
| 690 |
|
| 691 |
warn "## marc_compose current marc = ", dump( $m ),$/ if ($debug > 1); |
| 692 |
|
| 693 |
push @{ $marc_record->[ $marc_record_offset ] }, $m if ($#{$m} > 2); |
| 694 |
} |
| 695 |
|
| 696 |
=head2 marc_duplicate |
| 697 |
|
| 698 |
Generate copy of current MARC record and continue working on copy |
| 699 |
|
| 700 |
marc_duplicate(); |
| 701 |
|
| 702 |
Copies can be accessed using C<< _get_marc_fields( fetch_next => 1 ) >> or |
| 703 |
C<< _get_marc_fields( offset => 42 ) >>. |
| 704 |
|
| 705 |
=cut |
| 706 |
|
| 707 |
sub marc_duplicate { |
| 708 |
my $m = $marc_record->[ -1 ]; |
| 709 |
die "can't duplicate record which isn't defined" unless ($m); |
| 710 |
push @{ $marc_record }, dclone( $m ); |
| 711 |
push @{ $marc_leader }, dclone( marc_leader() ); |
| 712 |
warn "## marc_duplicate = ", dump(@$marc_leader, @$marc_record), $/ if ($debug > 1); |
| 713 |
$marc_record_offset = $#{ $marc_record }; |
| 714 |
warn "## marc_record_offset = $marc_record_offset", $/ if ($debug > 1); |
| 715 |
|
| 716 |
} |
| 717 |
|
| 718 |
=head2 marc_remove |
| 719 |
|
| 720 |
Remove some field or subfield from MARC record. |
| 721 |
|
| 722 |
marc_remove('200'); |
| 723 |
marc_remove('200','a'); |
| 724 |
|
| 725 |
This will erase field C<200> or C<200^a> from current MARC record. |
| 726 |
|
| 727 |
marc_remove('*'); |
| 728 |
|
| 729 |
Will remove all fields in current MARC record. |
| 730 |
|
| 731 |
This is useful after calling C<marc_duplicate> or on it's own (but, you |
| 732 |
should probably just remove that subfield definition if you are not |
| 733 |
using C<marc_duplicate>). |
| 734 |
|
| 735 |
FIXME: support fields < 10. |
| 736 |
|
| 737 |
=cut |
| 738 |
|
| 739 |
sub marc_remove { |
| 740 |
my ($f, $sf) = @_; |
| 741 |
|
| 742 |
die "marc_remove needs record number" unless defined($f); |
| 743 |
|
| 744 |
my $marc = $marc_record->[ $marc_record_offset ]; |
| 745 |
|
| 746 |
warn "### marc_remove before = ", dump( $marc ), $/ if ($debug > 2); |
| 747 |
|
| 748 |
if ($f eq '*') { |
| 749 |
|
| 750 |
delete( $marc_record->[ $marc_record_offset ] ); |
| 751 |
warn "## full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 1); |
| 752 |
|
| 753 |
} else { |
| 754 |
|
| 755 |
my $i = 0; |
| 756 |
foreach ( 0 .. $#{ $marc } ) { |
| 757 |
last unless (defined $marc->[$i]); |
| 758 |
warn "#### working on ",dump( @{ $marc->[$i] }), $/ if ($debug > 3); |
| 759 |
if ($marc->[$i]->[0] eq $f) { |
| 760 |
if (! defined $sf) { |
| 761 |
# remove whole field |
| 762 |
splice @$marc, $i, 1; |
| 763 |
warn "#### slice \@\$marc, $i, 1 = ",dump( @{ $marc }), $/ if ($debug > 3); |
| 764 |
$i--; |
| 765 |
} else { |
| 766 |
foreach my $j ( 0 .. (( $#{ $marc->[$i] } - 3 ) / 2) ) { |
| 767 |
my $o = ($j * 2) + 3; |
| 768 |
if ($marc->[$i]->[$o] eq $sf) { |
| 769 |
# remove subfield |
| 770 |
splice @{$marc->[$i]}, $o, 2; |
| 771 |
warn "#### slice \@{\$marc->[$i]}, $o, 2 = ", dump( @{ $marc }), $/ if ($debug > 3); |
| 772 |
# is record now empty? |
| 773 |
if ($#{ $marc->[$i] } == 2) { |
| 774 |
splice @$marc, $i, 1; |
| 775 |
warn "#### slice \@\$marc, $i, 1 = ", dump( @{ $marc }), $/ if ($debug > 3); |
| 776 |
$i--; |
| 777 |
}; |
| 778 |
} |
| 779 |
} |
| 780 |
} |
| 781 |
} |
| 782 |
$i++; |
| 783 |
} |
| 784 |
|
| 785 |
warn "### marc_remove($f", $sf ? ",$sf" : "", ") after = ", dump( $marc ), $/ if ($debug > 2); |
| 786 |
|
| 787 |
$marc_record->[ $marc_record_offset ] = $marc; |
| 788 |
} |
| 789 |
|
| 790 |
warn "## full marc_record = ", dump( @{ $marc_record }), $/ if ($debug > 1); |
| 791 |
} |
| 792 |
|
| 793 |
=head2 marc_original_order |
| 794 |
|
| 795 |
Copy all subfields preserving original order to marc field. |
| 796 |
|
| 797 |
marc_original_order( marc_field_number, original_input_field_number ); |
| 798 |
|
| 799 |
Please note that field numbers are consistent with other commands (marc |
| 800 |
field number first), but somewhat counter-intuitive (destination and then |
| 801 |
source). |
| 802 |
|
| 803 |
You might want to use this command if you are just renaming subfields or |
| 804 |
using pre-processing modify_record in C<config.yml> and don't need any |
| 805 |
post-processing or want to preserve order of original subfields. |
| 806 |
|
| 807 |
|
| 808 |
=cut |
| 809 |
|
| 810 |
sub marc_original_order { |
| 811 |
|
| 812 |
my ($to, $from) = @_; |
| 813 |
die "marc_original_order needs from and to fields\n" unless ($from && $to); |
| 814 |
|
| 815 |
return unless defined($rec->{$from}); |
| 816 |
|
| 817 |
my $r = $rec->{$from}; |
| 818 |
die "record field $from isn't array ",dump( $rec ) unless (ref($r) eq 'ARRAY'); |
| 819 |
|
| 820 |
my ($i1,$i2) = defined($marc_indicators->{$to}) ? @{ $marc_indicators->{$to} } : (' ',' '); |
| 821 |
warn "## marc_original_order($to,$from) source = ", dump( $r ),$/ if ($debug > 1); |
| 822 |
|
| 823 |
foreach my $d (@$r) { |
| 824 |
|
| 825 |
if (! defined($d->{subfields}) && ref($d->{subfields}) ne 'ARRAY') { |
| 826 |
warn "# marc_original_order($to,$from): field $from doesn't have subfields specification\n"; |
| 827 |
next; |
| 828 |
} |
| 829 |
|
| 830 |
my @sfs = @{ $d->{subfields} }; |
| 831 |
|
| 832 |
die "field $from doesn't have even number of subfields specifications\n" unless($#sfs % 2 == 1); |
| 833 |
|
| 834 |
warn "#--> d: ",dump($d), "\n#--> sfs: ",dump(@sfs),$/ if ($debug > 2); |
| 835 |
|
| 836 |
my $m = [ $to, $i1, $i2 ]; |
| 837 |
|
| 838 |
while (my $sf = shift @sfs) { |
| 839 |
|
| 840 |
warn "#--> sf: ",dump($sf), $/ if ($debug > 2); |
| 841 |
my $offset = shift @sfs; |
| 842 |
die "corrupted sufields specification for field $from\n" unless defined($offset); |
| 843 |
|
| 844 |
my $v; |
| 845 |
if (ref($d->{$sf}) eq 'ARRAY') { |
| 846 |
$v = $d->{$sf}->[$offset] if (defined($d->{$sf}->[$offset])); |
| 847 |
} elsif ($offset == 0) { |
| 848 |
$v = $d->{$sf}; |
| 849 |
} else { |
| 850 |
die "field $from subfield '$sf' need occurence $offset which doesn't exist", dump($d->{$sf}); |
| 851 |
} |
| 852 |
push @$m, ( $sf, $v ) if (defined($v)); |
| 853 |
} |
| 854 |
|
| 855 |
if ($#{$m} > 2) { |
| 856 |
push @{ $marc_record->[ $marc_record_offset ] }, $m; |
| 857 |
} |
| 858 |
} |
| 859 |
|
| 860 |
warn "## marc_record = ", dump( $marc_record ),$/ if ($debug > 1); |
| 861 |
} |
| 862 |
|
| 863 |
=head2 marc_template |
| 864 |
|
| 865 |
=cut |
| 866 |
|
| 867 |
sub marc_template { |
| 868 |
my $args = {@_}; |
| 869 |
warn "## marc_template(",dump($args),")"; |
| 870 |
|
| 871 |
foreach ( qw/subfields_rename marc_template/ ) { |
| 872 |
# warn "ref($_) = ",ref($args->{$_}); |
| 873 |
die "$_ not ARRAY" if ref($args->{$_}) ne 'ARRAY'; |
| 874 |
} |
| 875 |
|
| 876 |
my $r = $rec->{ $args->{from} } || return; |
| 877 |
die "record field ", $args->{from}, " isn't array ",dump( $rec ) unless (ref($r) eq 'ARRAY'); |
| 878 |
|
| 879 |
my @subfields_rename = @{ $args->{subfields_rename} }; |
| 880 |
# warn "### subfields_rename [$#subfields_rename] = ",dump( @subfields_rename ); |
| 881 |
|
| 882 |
confess "need mapping in pairs for subfields_rename" |
| 883 |
if $#subfields_rename % 2 != 1; |
| 884 |
|
| 885 |
my ( $subfields_rename, $from_subfields, $to_subfields ); |
| 886 |
while ( my ( $from, $to ) = splice(@subfields_rename, 0, 2) ) { |
| 887 |
my ( $f, $t ) = ( |
| 888 |
$from_subfields->{ $from }++, |
| 889 |
$to_subfields->{ $to }++ |
| 890 |
); |
| 891 |
$subfields_rename->{ $from }->[ $f ] = [ $to => $t ]; |
| 892 |
} |
| 893 |
warn "### subfields_rename = ",dump( $subfields_rename ),$/; |
| 894 |
warn "### from_subfields = ", dump( $from_subfields ),$/; |
| 895 |
warn "### to_subfields = ", dump( $to_subfields ),$/; |
| 896 |
|
| 897 |
my $fields_re = join('|', keys %$to_subfields ); |
| 898 |
|
| 899 |
my $pos_templates; |
| 900 |
my $count; |
| 901 |
my @marc_order; |
| 902 |
my $marc_template_order; |
| 903 |
my $fill_in; |
| 904 |
my @marc_out; |
| 905 |
|
| 906 |
foreach my $template ( @{ $args->{marc_template} } ) { |
| 907 |
$count = {}; |
| 908 |
@marc_order = (); |
| 909 |
sub my_count { |
| 910 |
my $sf = shift; |
| 911 |
my $nr = $count->{$sf}++; |
| 912 |
push @marc_order, [ $sf, $nr ]; |
| 913 |
return $sf . $nr; |
| 914 |
} |
| 915 |
my $pos_template = $template; |
| 916 |
$pos_template =~ s/($fields_re)/my_count($1)/ge; |
| 917 |
my $count_key = dump( $count ); |
| 918 |
warn "### template: |$template| -> |$pos_template| count = $count_key marc_order = ",dump( @marc_order ),$/; |
| 919 |
$pos_templates->{ $count_key } = $pos_template; |
| 920 |
$marc_template_order->{ $pos_template } = [ @marc_order ]; |
| 921 |
} |
| 922 |
warn "### from ",dump( $args->{marc_template} ), " created ", dump( $pos_templates ), " and ", dump( $marc_template_order ); |
| 923 |
|
| 924 |
my $m; |
| 925 |
|
| 926 |
foreach my $r ( @{ $rec->{ $args->{from} } } ) { |
| 927 |
|
| 928 |
my $i1 = $r->{i1} || ' '; |
| 929 |
my $i2 = $r->{i2} || ' '; |
| 930 |
$m = [ $args->{to}, $i1, $i2 ]; |
| 931 |
|
| 932 |
warn "### r = ",dump( $r ); |
| 933 |
|
| 934 |
my ( $new_r, $from_count, $to_count ); |
| 935 |
foreach my $sf ( keys %{$r} ) { |
| 936 |
# skip everything which isn't one char subfield (e.g. 'subfields') |
| 937 |
next unless $sf =~ m/^\w$/; |
| 938 |
my $nr = $from_count->{$sf}++; |
| 939 |
my $rename_to = $subfields_rename->{ $sf } || |
| 940 |
die "can't find subfield rename for $sf/$nr in ", dump( $subfields_rename ); |
| 941 |
warn "### rename $sf/$nr to ", dump( $rename_to->[$nr] ), $/; |
| 942 |
my ( $to_sf, $to_nr ) = @{ $rename_to->[$nr] }; |
| 943 |
$new_r->{ $to_sf }->[ $to_nr ] = [ $sf => $nr ]; |
| 944 |
|
| 945 |
$to_count->{ $to_sf }++; |
| 946 |
} |
| 947 |
|
| 948 |
warn "### new_r = ",dump( $new_r ); |
| 949 |
|
| 950 |
my $from_count_key = dump( $to_count ); |
| 951 |
|
| 952 |
warn "### from_count = ",dump( $from_count ), $/; |
| 953 |
warn "### to_count = ",dump( $to_count ), $/; |
| 954 |
|
| 955 |
my $template = $pos_templates->{ $from_count_key } || |
| 956 |
die "I don't have template for:\n$from_count_key\n## available templates\n", dump( $pos_templates ); |
| 957 |
|
| 958 |
warn "### selected template: |$template|\n"; |
| 959 |
|
| 960 |
$fill_in = {}; |
| 961 |
|
| 962 |
my @templates = split(/\|/, $template ); |
| 963 |
@templates = ( $template ); |
| 964 |
|
| 965 |
foreach my $sf ( @templates ) { |
| 966 |
sub fill_in { |
| 967 |
my ( $r, $sf, $nr ) = @_; |
| 968 |
my ( $from_sf, $from_nr ) = @{ $new_r->{ $sf }->[ $nr ] }; |
| 969 |
my $v = $r->{ $from_sf }; # || die "no $from_sf/$from_nr"; |
| 970 |
warn "#### fill_in( $sf, $nr ) = $from_sf/$from_nr >>>> ",dump( $v ), $/; |
| 971 |
if ( ref( $v ) eq 'ARRAY' ) { |
| 972 |
$fill_in->{$sf}->[$nr] = $v->[$from_nr]; |
| 973 |
return $v->[$from_nr]; |
| 974 |
} elsif ( $from_nr == 0 ) { |
| 975 |
$fill_in->{$sf}->[$nr] = $v; |
| 976 |
return $v; |
| 977 |
} else { |
| 978 |
die "requested subfield $from_sf/$from_nr but it's ",dump( $v ); |
| 979 |
} |
| 980 |
} |
| 981 |
warn "#### $sf <<<< $fields_re\n"; |
| 982 |
$sf =~ s/($fields_re)(\d+)/fill_in($r,$1,$2)/ge; |
| 983 |
warn "#### >>>> $sf with fill_in = ",dump( $fill_in ),$/; |
| 984 |
} |
| 985 |
|
| 986 |
warn "## template: |$template|\n## marc_template_order = ",dump( $marc_template_order ); |
| 987 |
|
| 988 |
foreach my $sf ( @{ $marc_template_order->{$template} } ) { |
| 989 |
my ( $sf, $nr ) = @$sf; |
| 990 |
my $v = $fill_in->{$sf}->[$nr] || die "can't find fill_in $sf/$nr"; |
| 991 |
warn "++ $sf/$nr |$v|\n"; |
| 992 |
push @$m, ( $sf, $v ); |
| 993 |
} |
| 994 |
|
| 995 |
warn "#### >>>> created marc: ", dump( $m ); |
| 996 |
|
| 997 |
push @marc_out, $m; |
| 998 |
} |
| 999 |
|
| 1000 |
warn "### marc_template produced: ",dump( @marc_out ); |
| 1001 |
|
| 1002 |
foreach my $marc ( @marc_out ) { |
| 1003 |
warn "+++ ",dump( $marc ); |
| 1004 |
push @{ $marc_record->[ $marc_record_offset ] }, $marc; |
| 1005 |
} |
| 1006 |
} |
| 1007 |
|
| 1008 |
=head2 marc_count |
| 1009 |
|
| 1010 |
Return number of MARC records created using L</marc_duplicate>. |
| 1011 |
|
| 1012 |
print "created ", marc_count(), " records"; |
| 1013 |
|
| 1014 |
=cut |
| 1015 |
|
| 1016 |
sub marc_count { |
| 1017 |
return $#{ $marc_record }; |
| 1018 |
} |
| 1019 |
|
| 1020 |
|
| 1021 |
=head1 Functions to extract data from input |
| 1022 |
|
| 1023 |
This function should be used inside functions to create C<data_structure> described |
| 1024 |
above. |
| 1025 |
|
| 1026 |
=head2 _pack_subfields_hash |
| 1027 |
|
| 1028 |
@subfields = _pack_subfields_hash( $h ); |
| 1029 |
$subfields = _pack_subfields_hash( $h, 1 ); |
| 1030 |
|
| 1031 |
Return each subfield value in array or pack them all together and return scalar |
| 1032 |
with subfields (denoted by C<^>) and values. |
| 1033 |
|
| 1034 |
=cut |
| 1035 |
|
| 1036 |
sub _pack_subfields_hash { |
| 1037 |
|
| 1038 |
warn "## _pack_subfields_hash( ",dump(@_), " )\n" if ($debug > 1); |
| 1039 |
|
| 1040 |
my ($h,$include_subfields) = @_; |
| 1041 |
|
| 1042 |
# sanity and ease of use |
| 1043 |
return $h if (ref($h) ne 'HASH'); |
| 1044 |
|
| 1045 |
if ( defined($h->{subfields}) ) { |
| 1046 |
my $sfs = delete $h->{subfields} || die "no subfields?"; |
| 1047 |
my @out; |
| 1048 |
while (@$sfs) { |
| 1049 |
my $sf = shift @$sfs; |
| 1050 |
push @out, '^' . $sf if ($include_subfields); |
| 1051 |
my $o = shift @$sfs; |
| 1052 |
if ($o == 0 && ref( $h->{$sf} ) ne 'ARRAY' ) { |
| 1053 |
# single element subfields are not arrays |
| 1054 |
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
| 1055 |
|
| 1056 |
push @out, $h->{$sf}; |
| 1057 |
} else { |
| 1058 |
#warn "====> $sf $o / $#$sfs ", dump( $sfs, $h->{$sf} ), "\n"; |
| 1059 |
push @out, $h->{$sf}->[$o]; |
| 1060 |
} |
| 1061 |
} |
| 1062 |
if ($include_subfields) { |
| 1063 |
return join('', @out); |
| 1064 |
} else { |
| 1065 |
return @out; |
| 1066 |
} |
| 1067 |
} else { |
| 1068 |
if ($include_subfields) { |
| 1069 |
my $out = ''; |
| 1070 |
foreach my $sf (sort keys %$h) { |
| 1071 |
if (ref($h->{$sf}) eq 'ARRAY') { |
| 1072 |
$out .= '^' . $sf . join('^' . $sf, @{ $h->{$sf} }); |
| 1073 |
} else { |
| 1074 |
$out .= '^' . $sf . $h->{$sf}; |
| 1075 |
} |
| 1076 |
} |
| 1077 |
return $out; |
| 1078 |
} else { |
| 1079 |
# FIXME this should probably be in alphabetical order instead of hash order |
| 1080 |
values %{$h}; |
| 1081 |
} |
| 1082 |
} |
| 1083 |
} |
| 1084 |
|
| 1085 |
=head2 rec1 |
| 1086 |
|
| 1087 |
Return all values in some field |
| 1088 |
|
| 1089 |
@v = rec1('200') |
| 1090 |
|
| 1091 |
TODO: order of values is probably same as in source data, need to investigate that |
| 1092 |
|
| 1093 |
=cut |
| 1094 |
|
| 1095 |
sub rec1 { |
| 1096 |
my $f = shift; |
| 1097 |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 1098 |
return unless (defined($rec) && defined($rec->{$f})); |
| 1099 |
warn "rec1($f) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 1100 |
if (ref($rec->{$f}) eq 'ARRAY') { |
| 1101 |
my @out; |
| 1102 |
foreach my $h ( @{ $rec->{$f} } ) { |
| 1103 |
if (ref($h) eq 'HASH') { |
| 1104 |
push @out, ( _pack_subfields_hash( $h ) ); |
| 1105 |
} else { |
| 1106 |
push @out, $h; |
| 1107 |
} |
| 1108 |
} |
| 1109 |
return @out; |
| 1110 |
} elsif( defined($rec->{$f}) ) { |
| 1111 |
return $rec->{$f}; |
| 1112 |
} |
| 1113 |
} |
| 1114 |
|
| 1115 |
=head2 rec2 |
| 1116 |
|
| 1117 |
Return all values in specific field and subfield |
| 1118 |
|
| 1119 |
@v = rec2('200','a') |
| 1120 |
|
| 1121 |
=cut |
| 1122 |
|
| 1123 |
sub rec2 { |
| 1124 |
my $f = shift; |
| 1125 |
return unless (defined($rec && $rec->{$f})); |
| 1126 |
my $sf = shift; |
| 1127 |
warn "rec2($f,$sf) = ", dump( $rec->{$f} ), $/ if ($debug > 1); |
| 1128 |
return map { |
| 1129 |
if (ref($_->{$sf}) eq 'ARRAY') { |
| 1130 |
@{ $_->{$sf} }; |
| 1131 |
} else { |
| 1132 |
$_->{$sf}; |
| 1133 |
} |
| 1134 |
} grep { ref($_) eq 'HASH' && $_->{$sf} } @{ $rec->{$f} }; |
| 1135 |
} |
| 1136 |
|
| 1137 |
=head2 rec |
| 1138 |
|
| 1139 |
syntaxtic sugar for |
| 1140 |
|
| 1141 |
@v = rec('200') |
| 1142 |
@v = rec('200','a') |
| 1143 |
|
| 1144 |
If rec() returns just single value, it will |
| 1145 |
return scalar, not array. |
| 1146 |
|
| 1147 |
=cut |
| 1148 |
|
| 1149 |
sub rec { |
| 1150 |
my @out; |
| 1151 |
if ($#_ == 0) { |
| 1152 |
@out = rec1(@_); |
| 1153 |
} elsif ($#_ == 1) { |
| 1154 |
@out = rec2(@_); |
| 1155 |
} |
| 1156 |
if ($#out == 0 && ! wantarray) { |
| 1157 |
return $out[0]; |
| 1158 |
} elsif (@out) { |
| 1159 |
return @out; |
| 1160 |
} else { |
| 1161 |
return ''; |
| 1162 |
} |
| 1163 |
} |
| 1164 |
|
| 1165 |
=head2 frec |
| 1166 |
|
| 1167 |
Returns first value from field |
| 1168 |
|
| 1169 |
$v = frec('200'); |
| 1170 |
$v = frec('200','a'); |
| 1171 |
|
| 1172 |
=cut |
| 1173 |
|
| 1174 |
sub frec { |
| 1175 |
my @out = rec(@_); |
| 1176 |
warn "rec(",dump(@_),") has more than one return value, ignoring\n" if $#out > 0; |
| 1177 |
return shift @out; |
| 1178 |
} |
| 1179 |
|
| 1180 |
=head2 frec_eq |
| 1181 |
|
| 1182 |
=head2 frec_ne |
| 1183 |
|
| 1184 |
Check if first values from two fields are same or different |
| 1185 |
|
| 1186 |
if ( frec_eq( 900 => 'a', 910 => 'c' ) ) { |
| 1187 |
# values are same |
| 1188 |
} else { |
| 1189 |
# values are different |
| 1190 |
} |
| 1191 |
|
| 1192 |
Strictly speaking C<frec_eq> and C<frec_ne> wouldn't be needed if you |
| 1193 |
could write something like: |
| 1194 |
|
| 1195 |
if ( frec( '900','a' ) eq frec( '910','c' ) ) { |
| 1196 |
# yada tada |
| 1197 |
} |
| 1198 |
|
| 1199 |
but you can't since our parser L<WebPAC::Parser> will remove all whitespaces |
| 1200 |
in order to parse text and create invalid function C<eqfrec>. |
| 1201 |
|
| 1202 |
=cut |
| 1203 |
|
| 1204 |
sub frec_eq { |
| 1205 |
my ( $f1,$sf1, $f2, $sf2 ) = @_; |
| 1206 |
return (rec( $f1, $sf1 ))[0] eq (rec( $f2, $sf2 ))[0]; |
| 1207 |
} |
| 1208 |
|
| 1209 |
sub frec_ne { |
| 1210 |
return ! frec_eq( @_ ); |
| 1211 |
} |
| 1212 |
|
| 1213 |
=head2 regex |
| 1214 |
|
| 1215 |
Apply regex to some or all values |
| 1216 |
|
| 1217 |
@v = regex( 's/foo/bar/g', @v ); |
| 1218 |
|
| 1219 |
=cut |
| 1220 |
|
| 1221 |
sub regex { |
| 1222 |
my $r = shift; |
| 1223 |
my @out; |
| 1224 |
#warn "r: $r\n", dump(\@_); |
| 1225 |
foreach my $t (@_) { |
| 1226 |
next unless ($t); |
| 1227 |
eval "\$t =~ $r"; |
| 1228 |
push @out, $t if ($t && $t ne ''); |
| 1229 |
} |
| 1230 |
return @out; |
| 1231 |
} |
| 1232 |
|
| 1233 |
=head2 prefix |
| 1234 |
|
| 1235 |
Prefix all values with a string |
| 1236 |
|
| 1237 |
@v = prefix( 'my_', @v ); |
| 1238 |
|
| 1239 |
=cut |
| 1240 |
|
| 1241 |
sub prefix { |
| 1242 |
my $p = shift; |
| 1243 |
return @_ unless defined( $p ); |
| 1244 |
return map { $p . $_ } grep { defined($_) } @_; |
| 1245 |
} |
| 1246 |
|
| 1247 |
=head2 suffix |
| 1248 |
|
| 1249 |
suffix all values with a string |
| 1250 |
|
| 1251 |
@v = suffix( '_my', @v ); |
| 1252 |
|
| 1253 |
=cut |
| 1254 |
|
| 1255 |
sub suffix { |
| 1256 |
my $s = shift; |
| 1257 |
return @_ unless defined( $s ); |
| 1258 |
return map { $_ . $s } grep { defined($_) } @_; |
| 1259 |
} |
| 1260 |
|
| 1261 |
=head2 surround |
| 1262 |
|
| 1263 |
surround all values with a two strings |
| 1264 |
|
| 1265 |
@v = surround( 'prefix_', '_suffix', @v ); |
| 1266 |
|
| 1267 |
=cut |
| 1268 |
|
| 1269 |
sub surround { |
| 1270 |
my $p = shift; |
| 1271 |
my $s = shift; |
| 1272 |
$p = '' unless defined( $p ); |
| 1273 |
$s = '' unless defined( $s ); |
| 1274 |
return map { $p . $_ . $s } grep { defined($_) } @_; |
| 1275 |
} |
| 1276 |
|
| 1277 |
=head2 first |
| 1278 |
|
| 1279 |
Return first element |
| 1280 |
|
| 1281 |
$v = first( @v ); |
| 1282 |
|
| 1283 |
=cut |
| 1284 |
|
| 1285 |
sub first { |
| 1286 |
my $r = shift; |
| 1287 |
return $r; |
| 1288 |
} |
| 1289 |
|
| 1290 |
=head2 lookup |
| 1291 |
|
| 1292 |
Consult lookup hashes for some value |
| 1293 |
|
| 1294 |
@v = lookup( |
| 1295 |
sub { |
| 1296 |
'ffkk/peri/mfn'.rec('000') |
| 1297 |
}, |
| 1298 |
'ffkk','peri','200-a-200-e', |
| 1299 |
sub { |
| 1300 |
first(rec(200,'a')).' '.first(rec('200','e')) |
| 1301 |
} |
| 1302 |
); |
| 1303 |
|
| 1304 |
Code like above will be B<automatically generated> using L<WebPAC::Parse> from |
| 1305 |
normal lookup definition in C<conf/lookup/something.pl> which looks like: |
| 1306 |
|
| 1307 |
lookup( |
| 1308 |
# which results to return from record recorded in lookup |
| 1309 |
sub { 'ffkk/peri/mfn' . rec('000') }, |
| 1310 |
# from which database and input |
| 1311 |
'ffkk','peri', |
| 1312 |
# such that following values match |
| 1313 |
sub { first(rec(200,'a')) . ' ' . first(rec('200','e')) }, |
| 1314 |
# if this part is missing, we will try to match same fields |
| 1315 |
# from lookup record and current one, or you can override |
| 1316 |
# which records to use from current record using |
| 1317 |
sub { rec('900','x') . ' ' . rec('900','y') }, |
| 1318 |
) |
| 1319 |
|
| 1320 |
You can think about this lookup as SQL (if that helps): |
| 1321 |
|
| 1322 |
select |
| 1323 |
sub { what } |
| 1324 |
from |
| 1325 |
database, input |
| 1326 |
where |
| 1327 |
sub { filter from lookuped record } |
| 1328 |
having |
| 1329 |
sub { optional filter on current record } |
| 1330 |
|
| 1331 |
Easy as pie, right? |
| 1332 |
|
| 1333 |
=cut |
| 1334 |
|
| 1335 |
sub lookup { |
| 1336 |
my ($what, $database, $input, $key, $having) = @_; |
| 1337 |
|
| 1338 |
confess "lookup needs 5 arguments: what, database, input, key, having\n" unless ($#_ == 4); |
| 1339 |
|
| 1340 |
warn "## lookup ($database, $input, $key)", $/ if ($debug > 1); |
| 1341 |
return unless (defined($lookup->{$database}->{$input}->{$key})); |
| 1342 |
|
| 1343 |
confess "lookup really need load_row_coderef added to data_structure\n" unless ($load_row_coderef); |
| 1344 |
|
| 1345 |
my $mfns; |
| 1346 |
my @having = $having->(); |
| 1347 |
|
| 1348 |
warn "## having = ", dump( @having ) if ($debug > 2); |
| 1349 |
|
| 1350 |
foreach my $h ( @having ) { |
| 1351 |
if (defined($lookup->{$database}->{$input}->{$key}->{$h})) { |
| 1352 |
warn "lookup for $database/$input/$key/$h return ",dump($lookup->{$database}->{$input}->{$key}->{$h}),"\n" if ($debug); |
| 1353 |
$mfns->{$_}++ foreach keys %{ $lookup->{$database}->{$input}->{$key}->{$h} }; |
| 1354 |
} |
| 1355 |
} |
| 1356 |
|
| 1357 |
return unless ($mfns); |
| 1358 |
|
| 1359 |
my @mfns = sort keys %$mfns; |
| 1360 |
|
| 1361 |
warn "# lookup loading $database/$input/$key mfn ", join(",",@mfns)," having ",dump(@having),"\n" if ($debug); |
| 1362 |
|
| 1363 |
my $old_rec = $rec; |
| 1364 |
my @out; |
| 1365 |
|
| 1366 |
foreach my $mfn (@mfns) { |
| 1367 |
$rec = $load_row_coderef->( $database, $input, $mfn ); |
| 1368 |
|
| 1369 |
warn "got $database/$input/$mfn = ", dump($rec), $/ if ($debug); |
| 1370 |
|
| 1371 |
my @vals = $what->(); |
| 1372 |
|
| 1373 |
push @out, ( @vals ); |
| 1374 |
|
| 1375 |
warn "lookup for mfn $mfn returned ", dump(@vals), $/ if ($debug); |
| 1376 |
} |
| 1377 |
|
| 1378 |
# if (ref($lookup->{$k}) eq 'ARRAY') { |
| 1379 |
# return @{ $lookup->{$k} }; |
| 1380 |
# } else { |
| 1381 |
# return $lookup->{$k}; |
| 1382 |
# } |
| 1383 |
|
| 1384 |
$rec = $old_rec; |
| 1385 |
|
| 1386 |
warn "## lookup returns = ", dump(@out), $/ if ($debug); |
| 1387 |
|
| 1388 |
if ($#out == 0) { |
| 1389 |
return $out[0]; |
| 1390 |
} else { |
| 1391 |
return @out; |
| 1392 |
} |
| 1393 |
} |
| 1394 |
|
| 1395 |
=head2 save_into_lookup |
| 1396 |
|
| 1397 |
Save value into lookup. It associates current database, input |
| 1398 |
and specific keys with one or more values which will be |
| 1399 |
associated over MFN. |
| 1400 |
|
| 1401 |
MFN will be extracted from first occurence current of field 000 |
| 1402 |
in current record, or if it doesn't exist from L<_set_config> C<_mfn>. |
| 1403 |
|
| 1404 |
my $nr = save_into_lookup($database,$input,$key,sub { |
| 1405 |
# code which produce one or more values |
| 1406 |
}); |
| 1407 |
|
| 1408 |
It returns number of items saved. |
| 1409 |
|
| 1410 |
This function shouldn't be called directly, it's called from code created by |
| 1411 |
L<WebPAC::Parser>. |
| 1412 |
|
| 1413 |
=cut |
| 1414 |
|
| 1415 |
sub save_into_lookup { |
| 1416 |
my ($database,$input,$key,$coderef) = @_; |
| 1417 |
die "save_into_lookup needs database" unless defined($database); |
| 1418 |
die "save_into_lookup needs input" unless defined($input); |
| 1419 |
die "save_into_lookup needs key" unless defined($key); |
| 1420 |
die "save_into_lookup needs CODE" unless ( defined($coderef) && ref($coderef) eq 'CODE' ); |
| 1421 |
|
| 1422 |
warn "## save_into_lookup rec = ", dump($rec), " config = ", dump($config), $/ if ($debug > 2); |
| 1423 |
|
| 1424 |
my $mfn = |
| 1425 |
defined($rec->{'000'}->[0]) ? $rec->{'000'}->[0] : |
| 1426 |
defined($config->{_mfn}) ? $config->{_mfn} : |
| 1427 |
die "mfn not defined or zero"; |
| 1428 |
|
| 1429 |
my $nr = 0; |
| 1430 |
|
| 1431 |
foreach my $v ( $coderef->() ) { |
| 1432 |
$lookup->{$database}->{$input}->{$key}->{$v}->{$mfn}++; |
| 1433 |
warn "# saved lookup $database/$input/$key [$v] $mfn\n" if ($debug > 1); |
| 1434 |
$nr++; |
| 1435 |
} |
| 1436 |
|
| 1437 |
return $nr; |
| 1438 |
} |
| 1439 |
|
| 1440 |
=head2 config |
| 1441 |
|
| 1442 |
Consult config values stored in C<config.yml> |
| 1443 |
|
| 1444 |
# return database code (key under databases in yaml) |
| 1445 |
$database_code = config(); # use _ from hash |
| 1446 |
$database_name = config('name'); |
| 1447 |
$database_input_name = config('input name'); |
| 1448 |
|
| 1449 |
Up to three levels are supported. |
| 1450 |
|
| 1451 |
=cut |
| 1452 |
|
| 1453 |
sub config { |
| 1454 |
return unless ($config); |
| 1455 |
|
| 1456 |
my $p = shift; |
| 1457 |
|
| 1458 |
$p ||= ''; |
| 1459 |
|
| 1460 |
my $v; |
| 1461 |
|
| 1462 |
warn "### getting config($p)\n" if ($debug > 1); |
| 1463 |
|
| 1464 |
my @p = split(/\s+/,$p); |
| 1465 |
if ($#p < 0) { |
| 1466 |
$v = $config->{ '_' }; # special, database code |
| 1467 |
} else { |
| 1468 |
|
| 1469 |
my $c = dclone( $config ); |
| 1470 |
|
| 1471 |
foreach my $k (@p) { |
| 1472 |
warn "### k: $k c = ",dump($c),$/ if ($debug > 1); |
| 1473 |
if (ref($c) eq 'ARRAY') { |
| 1474 |
$c = shift @$c; |
| 1475 |
warn "config($p) taking first occurence of '$k', probably not what you wanted!\n"; |
| 1476 |
last; |
| 1477 |
} |
| 1478 |
|
| 1479 |
if (! defined($c->{$k}) ) { |
| 1480 |
$c = undef; |
| 1481 |
last; |
| 1482 |
} else { |
| 1483 |
$c = $c->{$k}; |
| 1484 |
} |
| 1485 |
} |
| 1486 |
$v = $c if ($c); |
| 1487 |
|
| 1488 |
} |
| 1489 |
|
| 1490 |
warn "## config( '$p' ) = ",dump( $v ),$/ if ($v && $debug); |
| 1491 |
warn "config( '$p' ) is empty\n" if (! $v); |
| 1492 |
|
| 1493 |
return $v; |
| 1494 |
} |
| 1495 |
|
| 1496 |
=head2 id |
| 1497 |
|
| 1498 |
Returns unique id of this record |
| 1499 |
|
| 1500 |
$id = id(); |
| 1501 |
|
| 1502 |
Returns C<42/2> for 2nd occurence of MFN 42. |
| 1503 |
|
| 1504 |
=cut |
| 1505 |
|
| 1506 |
sub id { |
| 1507 |
my $mfn = $config->{_mfn} || die "no _mfn in config data"; |
| 1508 |
return $mfn . $#{$marc_record} ? $#{$marc_record} + 1 : ''; |
| 1509 |
} |
| 1510 |
|
| 1511 |
=head2 join_with |
| 1512 |
|
| 1513 |
Joins walues with some delimiter |
| 1514 |
|
| 1515 |
$v = join_with(", ", @v); |
| 1516 |
|
| 1517 |
=cut |
| 1518 |
|
| 1519 |
sub join_with { |
| 1520 |
my $d = shift; |
| 1521 |
warn "### join_with('$d',",dump(@_),")\n" if ($debug > 2); |
| 1522 |
my $v = join($d, grep { defined($_) && $_ ne '' } @_); |
| 1523 |
return '' unless defined($v); |
| 1524 |
return $v; |
| 1525 |
} |
| 1526 |
|
| 1527 |
=head2 split_rec_on |
| 1528 |
|
| 1529 |
Split record subfield on some regex and take one of parts out |
| 1530 |
|
| 1531 |
$a_before_semi_column = |
| 1532 |
split_rec_on('200','a', /\s*;\s*/, $part); |
| 1533 |
|
| 1534 |
C<$part> is optional number of element. First element is |
| 1535 |
B<1>, not 0! |
| 1536 |
|
| 1537 |
If there is no C<$part> parameter or C<$part> is 0, this function will |
| 1538 |
return all values produced by splitting. |
| 1539 |
|
| 1540 |
=cut |
| 1541 |
|
| 1542 |
sub split_rec_on { |
| 1543 |
die "split_rec_on need (fld,sf,regex[,part]" if ($#_ < 2); |
| 1544 |
|
| 1545 |
my ($fld, $sf, $regex, $part) = @_; |
| 1546 |
warn "### regex ", ref($regex), $regex, $/ if ($debug > 2); |
| 1547 |
|
| 1548 |
my @r = rec( $fld, $sf ); |
| 1549 |
my $v = shift @r; |
| 1550 |
warn "### first rec($fld,$sf) = ",dump($v),$/ if ($debug > 2); |
| 1551 |
|
| 1552 |
return '' if ( ! defined($v) || $v =~ /^\s*$/); |
| 1553 |
|
| 1554 |
my @s = split( $regex, $v ); |
| 1555 |
warn "## split_rec_on($fld,$sf,$regex,$part) = ",dump(@s),$/ if ($debug > 1); |
| 1556 |
if ($part && $part > 0) { |
| 1557 |
return $s[ $part - 1 ]; |
| 1558 |
} else { |
| 1559 |
return @s; |
| 1560 |
} |
| 1561 |
} |
| 1562 |
|
| 1563 |
my $hash; |
| 1564 |
|
| 1565 |
=head2 set |
| 1566 |
|
| 1567 |
set( key => 'value' ); |
| 1568 |
|
| 1569 |
=cut |
| 1570 |
|
| 1571 |
sub set { |
| 1572 |
my ($k,$v) = @_; |
| 1573 |
warn "## set ( $k => ", dump($v), " )", $/ if ( $debug ); |
| 1574 |
$hash->{$k} = $v; |
| 1575 |
}; |
| 1576 |
|
| 1577 |
=head2 get |
| 1578 |
|
| 1579 |
get( 'key' ); |
| 1580 |
|
| 1581 |
=cut |
| 1582 |
|
| 1583 |
sub get { |
| 1584 |
my $k = shift || return; |
| 1585 |
my $v = $hash->{$k}; |
| 1586 |
warn "## get $k = ", dump( $v ), $/ if ( $debug ); |
| 1587 |
return $v; |
| 1588 |
} |
| 1589 |
|
| 1590 |
=head2 count |
| 1591 |
|
| 1592 |
if ( count( @result ) == 1 ) { |
| 1593 |
# do something if only 1 result is there |
| 1594 |
} |
| 1595 |
|
| 1596 |
=cut |
| 1597 |
|
| 1598 |
sub count { |
| 1599 |
warn "## count ",dump(@_),$/ if ( $debug ); |
| 1600 |
return @_ . ''; |
| 1601 |
} |
| 1602 |
|
| 1603 |
# END |
| 1604 |
1; |
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