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=head1 VERSION |
=head1 VERSION |
18 |
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Version 0.11 |
Version 0.13 |
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=cut |
=cut |
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our $VERSION = '0.11'; |
our $VERSION = '0.13'; |
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=head1 SYNOPSIS |
=head1 SYNOPSIS |
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98 |
$log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_ref") if ($self->{lookup}); |
$log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_ref") if ($self->{lookup}); |
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100 |
$log->logconfess("specify low-level file format module") unless ($self->{module}); |
$log->logconfess("specify low-level file format module") unless ($self->{module}); |
101 |
my $module = $self->{module}; |
my $module_path = $self->{module}; |
102 |
$module =~ s#::#/#g; |
$module_path =~ s#::#/#g; |
103 |
$module .= '.pm'; |
$module_path .= '.pm'; |
104 |
$log->debug("require low-level module $self->{module} from $module"); |
$log->debug("require low-level module $self->{module} from $module_path"); |
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require $module; |
require $module_path; |
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#eval $self->{module} .'->import'; |
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# check if required subclasses are implemented |
# check if required subclasses are implemented |
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foreach my $subclass (qw/open_db fetch_rec init/) { |
foreach my $subclass (qw/open_db fetch_rec init dump_rec/) { |
110 |
my $n = $self->{module} . '::' . $subclass; |
# FIXME |
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if (! defined &{ $n }) { |
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my $missing = "missing $subclass in $self->{module}"; |
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$self->{$subclass} = sub { $log->logwarn($missing) }; |
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} else { |
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$self->{$subclass} = \&{ $n }; |
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} |
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} |
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if ($self->{init}) { |
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$log->debug("calling init"); |
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$self->{init}->($self, @_); |
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111 |
} |
} |
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$self->{'encoding'} ||= 'ISO-8859-2'; |
$self->{'encoding'} ||= 'ISO-8859-2'; |
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code_page => 'cp852', |
code_page => 'cp852', |
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limit => 500, |
limit => 500, |
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offset => 6000, |
offset => 6000, |
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lookup => $lookup_obj, |
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stats => 1, |
stats => 1, |
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lookup_ref => sub { |
lookup_coderef => sub { |
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my ($k,$v) = @_; |
my $rec = shift; |
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# store lookup $k => $v |
# store lookups |
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}, |
}, |
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modify_records => { |
modify_records => { |
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900 => { '^a' => { ' : ' => '^b' } }, |
900 => { '^a' => { ' : ' => '^b' } }, |
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901 => { '*' => { '^b' => ' ; ' } }, |
901 => { '*' => { '^b' => ' ; ' } }, |
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}, |
}, |
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modify_file => 'conf/modify/mapping.map', |
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); |
); |
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By default, C<code_page> is assumed to be C<cp852>. |
By default, C<code_page> is assumed to be C<cp852>. |
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C<stats> create optional report about usage of fields and subfields |
C<stats> create optional report about usage of fields and subfields |
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C<lookup_coderef> is closure to call when adding C<< key => 'value' >> combinations to |
C<lookup_coderef> is closure to called to save data into lookups |
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lookup. |
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C<modify_records> specify mapping from subfields to delimiters or from |
C<modify_records> specify mapping from subfields to delimiters or from |
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delimiters to subfields, as well as oprations on fields (if subfield is |
delimiters to subfields, as well as oprations on fields (if subfield is |
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defined as C<*>. |
defined as C<*>. |
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C<modify_file> is alternative for C<modify_records> above which preserves order and offers |
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(hopefully) simplier sintax than YAML or perl (see L</modify_file_regex>). This option |
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overrides C<modify_records> if both exists for same input. |
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Returns size of database, regardless of C<offset> and C<limit> |
Returns size of database, regardless of C<offset> and C<limit> |
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parametars, see also C<size>. |
parametars, see also C<size>. |
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$log->logconfess("lookup_coderef must be CODE, not ",ref($arg->{lookup_coderef})) |
$log->logconfess("lookup_coderef must be CODE, not ",ref($arg->{lookup_coderef})) |
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if ($arg->{lookup_coderef} && ref($arg->{lookup_coderef}) ne 'CODE'); |
if ($arg->{lookup_coderef} && ref($arg->{lookup_coderef}) ne 'CODE'); |
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$log->debug( $arg->{lookup_coderef} ? '' : 'not ', "using lookup_coderef"); |
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$log->logcroak("need path") if (! $arg->{'path'}); |
$log->logcroak("need path") if (! $arg->{'path'}); |
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my $code_page = $arg->{'code_page'} || 'cp852'; |
my $code_page = $arg->{'code_page'} || 'cp852'; |
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} |
} |
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my $rec_regex = $self->modify_record_regexps(%{ $arg->{modify_records} }); |
my $rec_regex; |
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$log->debug("rec_regex: ", Dumper($rec_regex)); |
if (my $p = $arg->{modify_file}) { |
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$log->debug("using modify_file $p"); |
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$rec_regex = $self->modify_file_regexps( $p ); |
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} elsif (my $h = $arg->{modify_records}) { |
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$log->debug("using modify_records ", Dumper( $h )); |
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$rec_regex = $self->modify_record_regexps(%{ $h }); |
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} |
239 |
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$log->debug("rec_regex: ", Dumper($rec_regex)) if ($rec_regex); |
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my ($db, $size) = $self->{open_db}->( $self, |
my $class = $self->{module} || $log->logconfess("can't get low-level module name!"); |
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my $ll_db = $class->new( |
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path => $arg->{path}, |
path => $arg->{path}, |
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# filter => sub { |
# filter => sub { |
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# my ($l,$f_nr) = @_; |
# my ($l,$f_nr) = @_; |
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%{ $arg }, |
%{ $arg }, |
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); |
); |
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unless (defined($db)) { |
unless (defined($ll_db)) { |
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$log->logwarn("can't open database $arg->{path}, skipping..."); |
$log->logwarn("can't open database $arg->{path}, skipping..."); |
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return; |
return; |
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} |
} |
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260 |
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my $size = $ll_db->size; |
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unless ($size) { |
unless ($size) { |
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$log->logwarn("no records in database $arg->{path}, skipping..."); |
$log->logwarn("no records in database $arg->{path}, skipping..."); |
264 |
return; |
return; |
290 |
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$log->debug("position: $pos\n"); |
$log->debug("position: $pos\n"); |
292 |
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293 |
my $rec = $self->{fetch_rec}->($self, $db, $pos, sub { |
my $rec = $ll_db->fetch_rec($pos, sub { |
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my ($l,$f_nr) = @_; |
my ($l,$f_nr) = @_; |
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# return unless defined($l); |
# return unless defined($l); |
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# return $l unless ($rec_regex && $f_nr); |
# return $l unless ($rec_regex && $f_nr); |
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if ($self->{stats}) { |
if ($self->{stats}) { |
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# fetch clean record with regexpes applied for statistics |
# fetch clean record with regexpes applied for statistics |
343 |
my $rec = $self->{fetch_rec}->($self, $db, $pos); |
my $rec = $ll_db->fetch_rec($pos); |
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foreach my $fld (keys %{ $rec }) { |
foreach my $fld (keys %{ $rec }) { |
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$self->{_stats}->{fld}->{ $fld }++; |
$self->{_stats}->{fld}->{ $fld }++; |
538 |
return $out; |
return $out; |
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} |
} |
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=head2 dump |
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Display humanly readable dump of record |
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=cut |
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sub dump { |
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my $self = shift; |
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return $self->{dump_rec}->($self, $self->{pos}); |
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} |
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=head2 modify_record_regexps |
=head2 modify_record_regexps |
555 |
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Generate hash with regexpes to be applied using L<filter>. |
Generate hash with regexpes to be applied using l<filter>. |
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my $regexpes = $input->modify_record_regexps( |
my $regexpes = $input->modify_record_regexps( |
559 |
900 => { '^a' => { ' : ' => '^b' } }, |
900 => { '^a' => { ' : ' => '^b' } }, |
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563 |
=cut |
=cut |
564 |
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565 |
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sub _get_regex { |
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my ($sf,$from,$to) = @_; |
567 |
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if ($sf =~ /^\^/) { |
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return |
569 |
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's/\Q'. $sf .'\E([^\^]*?)\Q'. $from .'\E([^\^]*?)/'. $sf .'$1'. $to .'$2/'; |
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} else { |
571 |
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return |
572 |
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's/\Q'. $from .'\E/'. $to .'/g'; |
573 |
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} |
574 |
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} |
575 |
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sub modify_record_regexps { |
sub modify_record_regexps { |
577 |
my $self = shift; |
my $self = shift; |
578 |
my $modify_record = {@_}; |
my $modify_record = {@_}; |
592 |
#die "no field?" unless defined($to); |
#die "no field?" unless defined($to); |
593 |
$log->debug("transform: |$from| -> |$to|"); |
$log->debug("transform: |$from| -> |$to|"); |
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if ($sf =~ /^\^/) { |
my $regex = _get_regex($sf,$from,$to); |
596 |
my $regex = |
push @{ $regexpes->{$f} }, $regex; |
597 |
's/\Q'. $sf .'\E(.*?)\Q'. $from .'\E(.*?)/'. $sf .'$1'. $to .'$2/g'; |
$log->debug("regex: $regex"); |
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push @{ $regexpes->{$f} }, $regex; |
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$log->debug(">>>>> $regex [sf]"); |
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} else { |
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my $regex = |
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's/\Q'. $from .'\E/'. $to .'/g'; |
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push @{ $regexpes->{$f} }, $regex; |
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$log->debug(">>>>> $regex [global]"); |
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} |
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} |
} |
599 |
} |
} |
600 |
} |
} |
601 |
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602 |
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return $regexpes; |
603 |
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} |
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=head2 modify_file_regexps |
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607 |
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Generate hash with regexpes to be applied using l<filter> from |
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pseudo hash/yaml format for regex mappings. |
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610 |
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It should be obvious: |
611 |
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200 |
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'^a' |
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' : ' => '^e' |
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' = ' => '^d' |
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In field I<200> find C<'^a'> and then C<' : '>, and replace it with C<'^e'>. |
618 |
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In field I<200> find C<'^a'> and then C<' = '>, and replace it with C<'^d'>. |
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620 |
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my $regexpes = $input->modify_file_regexps( 'conf/modify/common.pl' ); |
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622 |
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On undef path it will just return. |
623 |
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=cut |
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626 |
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sub modify_file_regexps { |
627 |
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my $self = shift; |
628 |
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629 |
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my $modify_path = shift || return; |
630 |
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631 |
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my $log = $self->_get_logger(); |
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633 |
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my $regexpes; |
634 |
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635 |
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CORE::open(my $fh, $modify_path) || $log->logdie("can't open modify file $modify_path: $!"); |
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637 |
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my ($f,$sf); |
638 |
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639 |
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while(<$fh>) { |
640 |
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chomp; |
641 |
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next if (/^#/ || /^\s*$/); |
642 |
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643 |
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if (/^\s*(\d+)\s*$/) { |
644 |
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$f = $1; |
645 |
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$log->debug("field: $f"); |
646 |
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next; |
647 |
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} elsif (/^\s*'([^']*)'\s*$/) { |
648 |
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$sf = $1; |
649 |
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$log->die("can't define subfiled before field in: $_") unless ($f); |
650 |
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$log->debug("subfield: $sf"); |
651 |
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} elsif (/^\s*'([^']*)'\s*=>\s*'([^']*)'\s*$/) { |
652 |
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my ($from,$to) = ($1, $2); |
653 |
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654 |
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$log->debug("transform: |$from| -> |$to|"); |
655 |
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656 |
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my $regex = _get_regex($sf,$from,$to); |
657 |
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push @{ $regexpes->{$f} }, $regex; |
658 |
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$log->debug("regex: $regex"); |
659 |
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} |
660 |
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} |
661 |
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662 |
return $regexpes; |
return $regexpes; |
663 |
} |
} |
664 |
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