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use warnings; |
use warnings; |
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use strict; |
use strict; |
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use blib; |
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use WebPAC::Common; |
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use base 'WebPAC::Common'; |
use base 'WebPAC::Common'; |
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use Data::Dumper; |
use Data::Dumper; |
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=head1 VERSION |
=head1 VERSION |
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Version 0.02 |
Version 0.08 |
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=cut |
=cut |
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our $VERSION = '0.02'; |
our $VERSION = '0.08'; |
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=head1 SYNOPSIS |
=head1 SYNOPSIS |
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49 |
code defined as code ref on format after field substitution to producing |
code defined as code ref on format after field substitution to producing |
50 |
output |
output |
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There is one built-in filter called C<regex> which can be use like this: |
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filter{regex(s/foo/bar/)} |
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=item * |
=item * |
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optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>. |
optional C<lookup{...}> will be then performed. See C<WebPAC::Lookups>. |
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db => $db_obj, |
db => $db_obj, |
89 |
lookup_regex => $lookup->regex, |
lookup_regex => $lookup->regex, |
90 |
lookup => $lookup_obj, |
lookup => $lookup_obj, |
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prefix => 'foobar', |
92 |
); |
); |
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94 |
Parametar C<filter> defines user supplied snippets of perl code which can |
Parametar C<filter> defines user supplied snippets of perl code which can |
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be use with C<filter{...}> notation. |
be use with C<filter{...}> notation. |
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C<prefix> is used to form filename for database record (to support multiple |
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source files which are joined in one database). |
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Recommended parametar C<lookup_regex> is used to enable parsing of lookups |
Recommended parametar C<lookup_regex> is used to enable parsing of lookups |
101 |
in structures. If you pass this parametar, you must also pass C<lookup> |
in structures. If you pass this parametar, you must also pass C<lookup> |
102 |
which is C<WebPAC::Lookup> object. |
which is C<WebPAC::Lookup> object. |
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$log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup')); |
$log->logdie("lookup must be WebPAC::Lookup object") if ($self->{'lookup'} && ! $self->{'lookup'}->isa('WebPAC::Lookup')); |
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$log->warn("no prefix defined. please check that!") unless ($self->{'prefix'}); |
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126 |
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$log->debug("using lookup regex: ", $self->{lookup_regex}) if ($r && $l); |
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128 |
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if (! $self->{filter} || ! $self->{filter}->{regex}) { |
129 |
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$log->debug("adding built-in filter regex"); |
130 |
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$self->{filter}->{regex} = sub { |
131 |
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my ($val, $regex) = @_; |
132 |
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eval "\$val =~ $regex"; |
133 |
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return $val; |
134 |
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}; |
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} |
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$self ? return $self : return undef; |
$self ? return $self : return undef; |
138 |
} |
} |
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$log->debug("data_structure rec = ", sub { Dumper($rec) }); |
$log->debug("data_structure rec = ", sub { Dumper($rec) }); |
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$log->logdie("need unique ID (mfn) in field 000 of record ", sub { Dumper($rec) } ) unless (defined($rec->{'000'})); |
$log->logdie("need unique ID (mfn) in field 000 of record " . Dumper($rec) ) unless (defined($rec->{'000'})); |
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my $mfn = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!"); |
my $id = $rec->{'000'}->[0] || $log->logdie("field 000 isn't array!"); |
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my $cache_file; |
my $cache_file; |
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if ($self->{'db'}) { |
if ($self->{'db'}) { |
169 |
my $ds = $self->{'db'}->load_ds( $mfn ); |
my $ds = $self->{'db'}->load_ds( id => $id, prefix => $self->{prefix} ); |
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$log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) }); |
$log->debug("load_ds( rec = ", sub { Dumper($rec) }, ") = ", sub { Dumper($ds) }); |
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return $ds if ($ds); |
return $ds if ($ds); |
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$log->debug("cache miss, creating"); |
$log->debug("cache miss, creating"); |
173 |
} |
} |
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undef $self->{'currnet_filename'}; |
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undef $self->{'headline'}; |
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my @sorted_tags; |
my @sorted_tags; |
176 |
if ($self->{tags_by_order}) { |
if ($self->{tags_by_order}) { |
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@sorted_tags = @{$self->{tags_by_order}}; |
@sorted_tags = @{$self->{tags_by_order}}; |
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$log->logdie("expected tag HASH and got $tag") unless (ref($tag) eq 'HASH'); |
$log->logdie("expected tag HASH and got $tag") unless (ref($tag) eq 'HASH'); |
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$format = $tag->{'value'} || $tag->{'content'}; |
$format = $tag->{'value'} || $tag->{'content'}; |
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$log->debug("format: $format"); |
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my @v; |
my @v; |
200 |
if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
if ($self->{'lookup_regex'} && $format =~ $self->{'lookup_regex'}) { |
201 |
@v = $self->fill_in_to_arr($rec,$format); |
@v = $self->_rec_to_arr($rec,$format,'fill_in'); |
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} else { |
203 |
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@v = $self->_rec_to_arr($rec,$format,'parse'); |
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} |
205 |
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if (! @v) { |
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$log->debug("$field <",$self->{tag},"> format: $format no values"); |
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next; |
208 |
} else { |
} else { |
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@v = $self->parse_to_arr($rec,$format); |
$log->debug("$field <",$self->{tag},"> format: $format values: ", join(",", @v)); |
210 |
} |
} |
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next if (! @v); |
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if ($tag->{'sort'}) { |
if ($tag->{'sort'}) { |
213 |
@v = $self->sort_arr(@v); |
@v = $self->sort_arr(@v); |
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foreach my $type (@types) { |
foreach my $type (@types) { |
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# append to previous line? |
# append to previous line? |
233 |
$log->debug("type: $type ",sub { join(" ",@v) }, $row->{'append'} || 'no append'); |
$log->debug("tag $field / $type [",sub { join(",",@v) }, "] ", $row->{'append'} || 'no append'); |
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if ($tag->{'append'}) { |
if ($tag->{'append'}) { |
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# I will delimit appended part with |
# I will delimit appended part with |
272 |
} |
} |
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$self->{'db'}->save_ds( |
$self->{'db'}->save_ds( |
275 |
id => $mfn, |
id => $id, |
276 |
ds => $ds, |
ds => $ds, |
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prefix => $self->{prefix}, |
278 |
) if ($self->{'db'}); |
) if ($self->{'db'}); |
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$log->debug("ds: ", sub { Dumper($ds) }); |
$log->debug("ds: ", sub { Dumper($ds) }); |
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my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
my $text = $webpac->parse($rec,'eval{"v901^a" eq "Deskriptor"}descriptor: v250^a', $i); |
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Filters are implemented here. While simple form of filters looks like this: |
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filter{name_of_filter} |
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but, filters can also have variable number of parametars like this: |
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filter{name_of_filter(param,param,param)} |
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=cut |
=cut |
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my $warn_once; |
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sub parse { |
sub parse { |
309 |
my $self = shift; |
my $self = shift; |
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my ($rec, $format_utf8, $i) = @_; |
my ($rec, $format_utf8, $i, $rec_size) = @_; |
312 |
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return if (! $format_utf8); |
return if (! $format_utf8); |
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my @out; |
my @out; |
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$log->debug("format: $format"); |
$log->debug("format: $format [$i]"); |
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my $eval_code; |
my $eval_code; |
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# remove eval{...} from beginning |
# remove eval{...} from beginning |
332 |
# remove filter{...} from beginning |
# remove filter{...} from beginning |
333 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
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335 |
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# did we found any (att all) field from format in row? |
336 |
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my $found_any; |
337 |
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# prefix before first field which we preserve it $found_any |
338 |
my $prefix; |
my $prefix; |
339 |
my $all_found=0; |
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340 |
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my $f_step = 1; |
341 |
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while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
while ($format =~ s/^(.*?)(v|s)(\d+)(?:\^(\w))?//s) { |
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my $del = $1 || ''; |
my $del = $1 || ''; |
345 |
$prefix ||= $del if ($all_found == 0); |
$prefix = $del if ($f_step == 1); |
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my $fld_type = lc($2); |
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# repeatable index |
# repeatable index |
350 |
my $r = $i; |
my $r = $i; |
351 |
$r = 0 if (lc("$2") eq 's'); |
if ($fld_type eq 's') { |
352 |
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if ($found_any->{'v'}) { |
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$r = 0; |
354 |
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} else { |
355 |
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return; |
356 |
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} |
357 |
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} |
358 |
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my $found = 0; |
my $found = 0; |
360 |
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found); |
my $tmp = $self->get_data(\$rec,$3,$4,$r,\$found,$rec_size); |
361 |
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362 |
if ($found) { |
if ($found) { |
363 |
push @out, $del; |
$found_any->{$fld_type} += $found; |
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# we will skip delimiter before first occurence of field! |
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push @out, $del unless($found_any->{$fld_type} == 1); |
367 |
push @out, $tmp; |
push @out, $tmp; |
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$all_found += $found; |
|
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} |
} |
369 |
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$f_step++; |
370 |
} |
} |
371 |
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return if (! $all_found); |
# test if any fields found? |
373 |
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return if (! $found_any->{'v'} && ! $found_any->{'s'}); |
374 |
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my $out = join('',@out); |
my $out = join('',@out); |
376 |
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390 |
return if (! $self->_eval($eval)); |
return if (! $self->_eval($eval)); |
391 |
} |
} |
392 |
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if ($filter_name && $self->{'filter'}->{$filter_name}) { |
if ($filter_name) { |
394 |
$log->debug("about to filter{$filter_name} format: $out"); |
my @filter_args; |
395 |
$out = $self->{'filter'}->{$filter_name}->($out); |
if ($filter_name =~ s/(\w+)\((.*)\)/$1/) { |
396 |
return unless(defined($out)); |
@filter_args = split(/,/, $2); |
397 |
$log->debug("filter result: $out"); |
} |
398 |
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if ($self->{'filter'}->{$filter_name}) { |
399 |
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$log->debug("about to filter{$filter_name} format: $out with arguments: ", join(",", @filter_args)); |
400 |
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unshift @filter_args, $out; |
401 |
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$out = $self->{'filter'}->{$filter_name}->(@filter_args); |
402 |
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return unless(defined($out)); |
403 |
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$log->debug("filter result: $out"); |
404 |
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} elsif (! $warn_once->{$filter_name}) { |
405 |
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$log->warn("trying to use undefined filter $filter_name"); |
406 |
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$warn_once->{$filter_name}++; |
407 |
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} |
408 |
} |
} |
409 |
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410 |
return $out; |
return $out; |
411 |
} |
} |
412 |
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=head2 parse_to_arr |
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Similar to C<parse>, but returns array of all repeatable fields |
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my @arr = $webpac->parse_to_arr($rec,'v250^a'); |
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=cut |
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sub parse_to_arr { |
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my $self = shift; |
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my ($rec, $format_utf8) = @_; |
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my $log = $self->_get_logger(); |
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$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
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return if (! $format_utf8); |
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my $i = 0; |
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my @arr; |
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while (my $v = $self->parse($rec,$format_utf8,$i++)) { |
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push @arr, $v; |
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} |
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$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
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return @arr; |
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} |
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413 |
=head2 fill_in |
=head2 fill_in |
414 |
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415 |
Workhourse of all: takes record from in-memory structure of database and |
Workhourse of all: takes record from in-memory structure of database and |
431 |
This method will automatically decode UTF-8 string to local code page |
This method will automatically decode UTF-8 string to local code page |
432 |
if needed. |
if needed. |
433 |
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434 |
|
There is optional parametar C<$record_size> which can be used to get sizes of |
435 |
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all C<field^subfield> combinations in this format. |
436 |
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437 |
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my $text = $webpac->fill_in($rec,'got: v900^a v900^x',0,\$rec_size); |
438 |
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439 |
=cut |
=cut |
440 |
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441 |
sub fill_in { |
sub fill_in { |
443 |
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444 |
my $log = $self->_get_logger(); |
my $log = $self->_get_logger(); |
445 |
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446 |
my $rec = shift || $log->logconfess("need data record"); |
my ($rec,$format,$i,$rec_size) = @_; |
447 |
my $format = shift || $log->logconfess("need format to parse"); |
|
448 |
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$log->logconfess("need data record") unless ($rec); |
449 |
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$log->logconfess("need format to parse") unless($format); |
450 |
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451 |
# iteration (for repeatable fields) |
# iteration (for repeatable fields) |
452 |
my $i = shift || 0; |
$i ||= 0; |
453 |
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454 |
$log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999)); |
$log->logdie("infitite loop in format $format") if ($i > ($self->{'max_mfn'} || 9999)); |
455 |
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|
461 |
} |
} |
462 |
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463 |
my $found = 0; |
my $found = 0; |
464 |
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my $just_single = 1; |
465 |
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|
466 |
my $eval_code; |
my $eval_code; |
467 |
# remove eval{...} from beginning |
# remove eval{...} from beginning |
471 |
# remove filter{...} from beginning |
# remove filter{...} from beginning |
472 |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
$filter_name = $1 if ($format =~ s/^filter{([^}]+)}//s); |
473 |
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|
474 |
# do actual replacement of placeholders |
{ |
475 |
# repeatable fields |
# fix warnings |
476 |
$format =~ s/v(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,$i,\$found)/ges; |
no warnings 'uninitialized'; |
477 |
# non-repeatable fields |
|
478 |
$format =~ s/s(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,0,\$found)/ges; |
# do actual replacement of placeholders |
479 |
|
# repeatable fields |
480 |
|
if ($format =~ s/v(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,$i,\$found,$rec_size)/ges) { |
481 |
|
$just_single = 0; |
482 |
|
} |
483 |
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|
484 |
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# non-repeatable fields |
485 |
|
if ($format =~ s/s(\d+)(?:\^(\w))?/$self->get_data(\$rec,$1,$2,0,\$found,$rec_size)/ges) { |
486 |
|
return if ($i > 0 && $just_single); |
487 |
|
} |
488 |
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} |
489 |
|
|
490 |
if ($found) { |
if ($found) { |
491 |
$log->debug("format: $format"); |
$log->debug("format: $format"); |
502 |
# do we have lookups? |
# do we have lookups? |
503 |
if ($self->{'lookup'}) { |
if ($self->{'lookup'}) { |
504 |
if ($self->{'lookup'}->can('lookup')) { |
if ($self->{'lookup'}->can('lookup')) { |
505 |
return $self->{'lookup'}->lookup($format); |
my @lookup = $self->{lookup}->lookup($format); |
506 |
|
$log->debug("lookup $format", join(", ", @lookup)); |
507 |
|
return @lookup; |
508 |
} else { |
} else { |
509 |
$log->warn("Have lookup object but can't invoke lookup method"); |
$log->warn("Have lookup object but can't invoke lookup method"); |
510 |
} |
} |
517 |
} |
} |
518 |
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|
519 |
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|
520 |
=head2 fill_in_to_arr |
=head2 _rec_to_arr |
521 |
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|
522 |
Similar to C<fill_in>, but returns array of all repeatable fields. Usable |
Similar to C<parse> and C<fill_in>, but returns array of all repeatable fields. Usable |
523 |
for fields which have lookups, so they shouldn't be parsed but rather |
for fields which have lookups, so they shouldn't be parsed but rather |
524 |
C<fill_id>ed. |
C<paste>d or C<fill_id>ed. Last argument is name of operation: C<paste> or C<fill_in>. |
525 |
|
|
526 |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]'); |
my @arr = $webpac->fill_in_to_arr($rec,'[v900];;[v250^a]','paste'); |
527 |
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|
528 |
=cut |
=cut |
529 |
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|
530 |
sub fill_in_to_arr { |
sub _rec_to_arr { |
531 |
my $self = shift; |
my $self = shift; |
532 |
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|
533 |
my ($rec, $format_utf8) = @_; |
my ($rec, $format_utf8, $code) = @_; |
534 |
|
|
535 |
my $log = $self->_get_logger(); |
my $log = $self->_get_logger(); |
536 |
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|
537 |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
$log->logconfess("need HASH as first argument!") if ($rec !~ /HASH/o); |
538 |
return if (! $format_utf8); |
return if (! $format_utf8); |
539 |
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|
540 |
|
$log->debug("using $code on $format_utf8"); |
541 |
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|
542 |
my $i = 0; |
my $i = 0; |
543 |
|
my $max = 0; |
544 |
my @arr; |
my @arr; |
545 |
|
my $rec_size = {}; |
546 |
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|
547 |
while (my @v = $self->fill_in($rec,$format_utf8,$i++)) { |
while ($i <= $max) { |
548 |
push @arr, @v; |
my @v = $self->$code($rec,$format_utf8,$i++,\$rec_size); |
549 |
|
if ($rec_size) { |
550 |
|
foreach my $f (keys %{ $rec_size }) { |
551 |
|
$max = $rec_size->{$f} if ($rec_size->{$f} > $max); |
552 |
|
} |
553 |
|
$log->debug("max set to $max"); |
554 |
|
undef $rec_size; |
555 |
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} |
556 |
|
if (@v) { |
557 |
|
push @arr, @v; |
558 |
|
} else { |
559 |
|
push @arr, '' if ($max > $i); |
560 |
|
} |
561 |
} |
} |
562 |
|
|
563 |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
$log->debug("format '$format_utf8' returned ",--$i," elements: ", sub { join(" | ",@arr) }) if (@arr); |
570 |
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|
571 |
Returns value from record. |
Returns value from record. |
572 |
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|
573 |
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found); |
my $text = $self->get_data(\$rec,$f,$sf,$i,\$found,\$rec_size); |
574 |
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|
575 |
|
Required arguments are: |
576 |
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|
577 |
|
=over 8 |
578 |
|
|
579 |
Arguments are: |
=item C<$rec> |
|
record reference C<$rec>, |
|
|
field C<$f>, |
|
|
optional subfiled C<$sf>, |
|
|
index for repeatable values C<$i>. |
|
580 |
|
|
581 |
Optinal variable C<$found> will be incremeted if there |
record reference |
|
is field. |
|
582 |
|
|
583 |
Returns value or empty string. |
=item C<$f> |
584 |
|
|
585 |
|
field |
586 |
|
|
587 |
|
=item C<$sf> |
588 |
|
|
589 |
|
optional subfield |
590 |
|
|
591 |
|
=item C<$i> |
592 |
|
|
593 |
|
index offset for repeatable values ( 0 ... $rec_size->{'400^a'} ) |
594 |
|
|
595 |
|
=item C<$found> |
596 |
|
|
597 |
|
optional variable that will be incremeted if preset |
598 |
|
|
599 |
|
=item C<$rec_size> |
600 |
|
|
601 |
|
hash to hold maximum occurances of C<field^subfield> combinations |
602 |
|
(which can be accessed using keys in same format) |
603 |
|
|
604 |
|
=back |
605 |
|
|
606 |
|
Returns value or empty string, updates C<$found> and C<rec_size> |
607 |
|
if present. |
608 |
|
|
609 |
=cut |
=cut |
610 |
|
|
611 |
sub get_data { |
sub get_data { |
612 |
my $self = shift; |
my $self = shift; |
613 |
|
|
614 |
my ($rec,$f,$sf,$i,$found) = @_; |
my ($rec,$f,$sf,$i,$found,$cache) = @_; |
615 |
|
|
616 |
|
return '' unless ($$rec->{$f} && ref($$rec->{$f}) eq 'ARRAY'); |
617 |
|
|
618 |
|
if (defined($$cache)) { |
619 |
|
$$cache->{ $f . ( $sf ? '^' . $sf : '' ) } ||= scalar @{ $$rec->{$f} }; |
620 |
|
} |
621 |
|
|
622 |
|
return '' unless ($$rec->{$f}->[$i]); |
623 |
|
|
624 |
if ($$rec->{$f}) { |
{ |
|
return '' if (! $$rec->{$f}->[$i]); |
|
625 |
no strict 'refs'; |
no strict 'refs'; |
626 |
if ($sf && $$rec->{$f}->[$i]->{$sf}) { |
if (defined($sf)) { |
627 |
$$found++ if (defined($$found)); |
$$found++ if (defined($$found) && $$rec->{$f}->[$i]->{$sf}); |
628 |
return $$rec->{$f}->[$i]->{$sf}; |
return $$rec->{$f}->[$i]->{$sf}; |
629 |
} elsif (! $sf && $$rec->{$f}->[$i]) { |
} else { |
630 |
$$found++ if (defined($$found)); |
$$found++ if (defined($$found)); |
631 |
# it still might have subfield, just |
# it still might have subfields, just |
632 |
# not specified, so we'll dump all |
# not specified, so we'll dump some debug info |
633 |
if ($$rec->{$f}->[$i] =~ /HASH/o) { |
if ($$rec->{$f}->[$i] =~ /HASH/o) { |
634 |
my $out; |
my $out; |
635 |
foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
foreach my $k (keys %{$$rec->{$f}->[$i]}) { |
636 |
$out .= $$rec->{$f}->[$i]->{$k}." "; |
$out .= '$' . $k .':' . $$rec->{$f}->[$i]->{$k}." "; |
637 |
} |
} |
638 |
return $out; |
return $out; |
639 |
} else { |
} else { |
640 |
return $$rec->{$f}->[$i]; |
return $$rec->{$f}->[$i]; |
641 |
} |
} |
|
} else { |
|
|
return ''; |
|
642 |
} |
} |
|
} else { |
|
|
return ''; |
|
643 |
} |
} |
644 |
} |
} |
645 |
|
|
760 |
|
|
761 |
=cut |
=cut |
762 |
|
|
763 |
1; # End of WebPAC::DB |
1; # End of WebPAC::Normalize |