8 |
use WebPAC::Common; |
use WebPAC::Common; |
9 |
use base qw/WebPAC::Common/; |
use base qw/WebPAC::Common/; |
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use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
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use Encode qw/from_to/; |
use Encode qw/decode from_to/; |
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13 |
=head1 NAME |
=head1 NAME |
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WebPAC::Input - read different file formats into WebPAC |
WebPAC::Input - read different file formats into WebPAC |
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=head1 VERSION |
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Version 0.16 |
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=cut |
=cut |
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our $VERSION = '0.16'; |
our $VERSION = '0.19'; |
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21 |
=head1 SYNOPSIS |
=head1 SYNOPSIS |
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58 |
my $db = new WebPAC::Input( |
my $db = new WebPAC::Input( |
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module => 'WebPAC::Input::MARC', |
module => 'WebPAC::Input::MARC', |
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encoding => 'ISO-8859-2', |
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recode => 'char pairs', |
recode => 'char pairs', |
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no_progress_bar => 1, |
no_progress_bar => 1, |
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input_config => { |
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mapping => [ 'foo', 'bar', 'baz' ], |
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}, |
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); |
); |
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C<module> is low-level file format module. See L<WebPAC::Input::ISIS> and |
C<module> is low-level file format module. See L<WebPAC::Input::ISIS> and |
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L<WebPAC::Input::MARC>. |
L<WebPAC::Input::MARC>. |
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Optional parametar C<encoding> specify application code page (which will be |
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used internally). This should probably be your terminal encoding, and by |
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default, it C<ISO-8859-2>. |
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C<recode> is optional string constisting of character or words pairs that |
C<recode> is optional string constisting of character or words pairs that |
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should be replaced in input stream. |
should be replaced in input stream. |
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my $log = $self->_get_logger; |
my $log = $self->_get_logger; |
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$log->logconfess("code_page argument is not suppored any more. change it to encoding") if ($self->{lookup}); |
$log->logconfess("code_page argument is not suppored any more.") if $self->{code_page}; |
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$log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_ref") if ($self->{lookup}); |
$log->logconfess("encoding argument is not suppored any more.") if $self->{encoding}; |
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$log->logconfess("low_mem argument is not suppored any more. rewrite it to load_row and save_row") if ($self->{low_mem}); |
$log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_ref") if $self->{lookup}; |
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$log->logconfess("low_mem argument is not suppored any more. rewrite it to load_row and save_row") if $self->{low_mem}; |
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$log->logconfess("specify low-level file format module") unless ($self->{module}); |
$log->logconfess("specify low-level file format module") unless ($self->{module}); |
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my $module_path = $self->{module}; |
my $module_path = $self->{module}; |
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require $module_path; |
require $module_path; |
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$self->{'encoding'} ||= 'ISO-8859-2'; |
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$self ? return $self : return undef; |
$self ? return $self : return undef; |
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} |
} |
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$input->open( |
$input->open( |
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path => '/path/to/database/file', |
path => '/path/to/database/file', |
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code_page => 'cp852', |
input_encoding => 'cp852', |
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strict_encoding => 0, |
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limit => 500, |
limit => 500, |
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offset => 6000, |
offset => 6000, |
115 |
stats => 1, |
stats => 1, |
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); |
); |
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By default, C<code_page> is assumed to be C<cp852>. |
By default, C<input_encoding> is assumed to be C<cp852>. |
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C<offset> is optional parametar to position at some offset before reading from database. |
C<offset> is optional parametar to position at some offset before reading from database. |
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C<save_row> and C<load_row> are low-level implementation of store engine. Calling convention |
C<save_row> and C<load_row> are low-level implementation of store engine. Calling convention |
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is documented in example above. |
is documented in example above. |
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C<strict_encoding> should really default to 1, but it doesn't for now. |
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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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my $arg = {@_}; |
my $arg = {@_}; |
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my $log = $self->_get_logger(); |
my $log = $self->_get_logger(); |
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$log->debug( "arguments: ",dump( $arg )); |
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$log->logconfess("encoding argument is not suppored any more.") if $self->{encoding}; |
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$log->logconfess("code_page argument is not suppored any more.") if $self->{code_page}; |
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$log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_coderef") if ($arg->{lookup}); |
$log->logconfess("lookup argument is not suppored any more. rewrite call to lookup_coderef") if ($arg->{lookup}); |
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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"); |
$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 $input_encoding = $arg->{'input_encoding'} || $self->{'input_encoding'} || 'cp852'; |
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# store data in object |
# store data in object |
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$self->{'input_code_page'} = $code_page; |
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foreach my $v (qw/path offset limit/) { |
foreach my $v (qw/path offset limit/) { |
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$self->{$v} = $arg->{$v} if ($arg->{$v}); |
$self->{$v} = $arg->{$v} if ($arg->{$v}); |
186 |
} |
} |
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my $ll_db = $class->new( |
my $ll_db = $class->new( |
233 |
path => $arg->{path}, |
path => $arg->{path}, |
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input_config => $arg->{input_config} || $self->{input_config}, |
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# filter => sub { |
# filter => sub { |
236 |
# my ($l,$f_nr) = @_; |
# my ($l,$f_nr) = @_; |
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# return unless defined($l); |
# return unless defined($l); |
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# from_to($l, $code_page, $self->{'encoding'}); |
# $l = decode($input_encoding, $l); |
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# $l =~ s/($recode_regex)/$recode_map->{$1}/g if ($recode_regex && $recode_map); |
# $l =~ s/($recode_regex)/$recode_map->{$1}/g if ($recode_regex && $recode_map); |
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# return $l; |
# return $l; |
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# }, |
# }, |
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# store size for later |
# store size for later |
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$self->{size} = ($to_rec - $from_rec) ? ($to_rec - $from_rec + 1) : 0; |
$self->{size} = ($to_rec - $from_rec) ? ($to_rec - $from_rec + 1) : 0; |
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$log->info("processing $self->{size}/$size records [$from_rec-$to_rec] convert $code_page -> $self->{encoding}", $self->{stats} ? ' [stats]' : ''); |
my $strict_encoding = $arg->{strict_encoding} || $self->{strict_encoding}; ## FIXME should be 1 really |
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$log->info("processing $self->{size}/$size records [$from_rec-$to_rec]", |
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" encoding $input_encoding ", $strict_encoding ? ' [strict]' : '', |
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$self->{stats} ? ' [stats]' : '', |
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); |
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# read database |
# read database |
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for (my $pos = $from_rec; $pos <= $to_rec; $pos++) { |
for (my $pos = $from_rec; $pos <= $to_rec; $pos++) { |
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$log->debug("position: $pos\n"); |
$log->debug("position: $pos\n"); |
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my $rec = $ll_db->fetch_rec($pos, sub { |
my $rec = $ll_db->fetch_rec($pos, sub { |
289 |
my ($l,$f_nr) = @_; |
my ($l,$f_nr,$debug) = @_; |
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# return unless defined($l); |
# return unless defined($l); |
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# return $l unless ($rec_regex && $f_nr); |
# return $l unless ($rec_regex && $f_nr); |
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return unless ( defined($l) && defined($f_nr) ); |
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warn "-=> $f_nr ## |$l|\n" if ($debug); |
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$log->debug("-=> $f_nr ## $l"); |
$log->debug("-=> $f_nr ## $l"); |
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# codepage conversion and recode_regex |
# codepage conversion and recode_regex |
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from_to($l, $code_page, $self->{'encoding'}); |
$l = decode($input_encoding, $l, 1); |
300 |
$l =~ s/($recode_regex)/$recode_map->{$1}/g if ($recode_regex && $recode_map); |
$l =~ s/($recode_regex)/$recode_map->{$1}/g if ($recode_regex && $recode_map); |
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# apply regexps |
# apply regexps |
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my $c = 0; |
my $c = 0; |
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foreach my $r (@{ $rec_regex->{$f_nr} }) { |
foreach my $r (@{ $rec_regex->{$f_nr} }) { |
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my $old_l = $l; |
my $old_l = $l; |
308 |
eval '$l =~ ' . $r; |
$log->logconfess("expected regex in ", dump( $r )) unless defined($r->{regex}); |
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eval '$l =~ ' . $r->{regex}; |
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if ($old_l ne $l) { |
if ($old_l ne $l) { |
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$log->debug("REGEX on $f_nr eval \$l =~ $r\n## old l: [$old_l]\n## new l: [$l]"); |
my $d = "|$old_l| -> |$l| "; # . $r->{regex}; |
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$d .= ' +' . $r->{line} . ' ' . $r->{file} if defined($r->{line}); |
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$d .= ' ' . $r->{debug} if defined($r->{debug}); |
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$log->debug("MODIFY $d"); |
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warn "*** $d\n" if ($debug); |
316 |
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317 |
} |
} |
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$log->error("error applying regex: $r") if ($@); |
$log->error("error applying regex: $r") if ($@); |
319 |
} |
} |
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} |
} |
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$log->debug("<=- $f_nr ## $l"); |
$log->debug("<=- $f_nr ## |$l|"); |
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warn "<=- $f_nr ## $l\n" if ($debug); |
324 |
return $l; |
return $l; |
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}); |
}); |
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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}->{ $fld }++; |
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$log->logdie("invalid record fild $fld, not ARRAY") |
#$log->logdie("invalid record fild $fld, not ARRAY") |
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unless (ref($rec->{ $fld }) eq 'ARRAY'); |
next unless (ref($rec->{ $fld }) eq 'ARRAY'); |
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foreach my $row (@{ $rec->{$fld} }) { |
foreach my $row (@{ $rec->{$fld} }) { |
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484 |
sub seek { |
sub seek { |
485 |
my $self = shift; |
my $self = shift; |
486 |
my $pos = shift || return; |
my $pos = shift; |
487 |
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488 |
my $log = $self->_get_logger(); |
my $log = $self->_get_logger(); |
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490 |
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$log->logconfess("called without pos") unless defined($pos); |
491 |
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492 |
if ($pos < 1) { |
if ($pos < 1) { |
493 |
$log->warn("seek before first record"); |
$log->warn("seek before first record"); |
494 |
$pos = 1; |
$pos = 1; |
523 |
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524 |
my $out = join("\n", |
my $out = join("\n", |
525 |
map { |
map { |
526 |
my $f = $_ || die "no field"; |
my $f = $_; |
527 |
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die "no field in ", dump( $s->{fld} ) unless defined( $f ); |
528 |
my $v = $s->{fld}->{$f} || die "no s->{fld}->{$f}"; |
my $v = $s->{fld}->{$f} || die "no s->{fld}->{$f}"; |
529 |
$max_fld = $v if ($v > $max_fld); |
$max_fld = $v if ($v > $max_fld); |
530 |
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531 |
my $o = sprintf("%4s %d ~", $f, $v); |
my $o = sprintf("%4s %d ~", $f, $v); |
532 |
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533 |
if (defined($s->{sf}->{$f})) { |
if (defined($s->{sf}->{$f})) { |
534 |
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my @subfields = keys %{ $s->{sf}->{$f} }; |
535 |
map { |
map { |
536 |
$o .= sprintf(" %s:%d%s", $_, |
$o .= sprintf(" %s:%d%s", $_, |
537 |
$s->{sf}->{$f}->{$_}->{count}, |
$s->{sf}->{$f}->{$_}->{count}, |
538 |
$s->{sf}->{$f}->{$_}->{repeatable} ? '*' : '', |
$s->{sf}->{$f}->{$_}->{repeatable} ? '*' : '', |
539 |
); |
); |
540 |
} sort keys %{ $s->{sf}->{$f} }; |
} ( |
541 |
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# first indicators and other special subfields |
542 |
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sort( grep { length($_) > 1 } @subfields ), |
543 |
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# then subfileds (single char) |
544 |
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sort( grep { length($_) == 1 } @subfields ), |
545 |
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); |
546 |
} |
} |
547 |
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548 |
if (my $v_r = $s->{repeatable}->{$f}) { |
if (my $v_r = $s->{repeatable}->{$f}) { |
550 |
} |
} |
551 |
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552 |
$o; |
$o; |
553 |
} sort { $a cmp $b } keys %{ $s->{fld} } |
} sort { |
554 |
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if ( $a =~ m/^\d+$/ && $b =~ m/^\d+$/ ) { |
555 |
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$a <=> $b |
556 |
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} else { |
557 |
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$a cmp $b |
558 |
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} |
559 |
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} keys %{ $s->{fld} } |
560 |
); |
); |
561 |
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562 |
$log->debug( sub { dump($s) } ); |
$log->debug( sub { dump($s) } ); |
575 |
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576 |
return unless $self->{ll_db}; |
return unless $self->{ll_db}; |
577 |
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578 |
if ($self->{ll_db}->can('dump_rec')) { |
if ($self->{ll_db}->can('dump_ascii')) { |
579 |
return $self->{ll_db}->dump_ascii( $self->{pos} ); |
return $self->{ll_db}->dump_ascii( $self->{pos} ); |
580 |
} else { |
} else { |
581 |
return dump( $self->{ll_db}->fetch_rec( $self->{pos} ) ); |
return dump( $self->{ll_db}->fetch_rec( $self->{pos} ) ); |
582 |
} |
} |
583 |
} |
} |
584 |
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585 |
=head2 modify_record_regexps |
=head2 _get_regex |
586 |
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587 |
Generate hash with regexpes to be applied using l<filter>. |
Helper function called which create regexps to be execute on code. |
588 |
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589 |
my $regexpes = $input->modify_record_regexps( |
_get_regex( 900, 'regex:[0-9]+' ,'numbers' ); |
590 |
900 => { '^a' => { ' : ' => '^b' } }, |
_get_regex( 900, '^b', ' : ^b' ); |
591 |
901 => { '*' => { '^b' => ' ; ' } }, |
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592 |
); |
It supports perl regexps with C<regex:> prefix to from value and has |
593 |
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additional logic to skip empty subfields. |
594 |
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595 |
=cut |
=cut |
596 |
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597 |
sub _get_regex { |
sub _get_regex { |
598 |
my ($sf,$from,$to) = @_; |
my ($sf,$from,$to) = @_; |
599 |
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600 |
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# protect / |
601 |
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$from =~ s!/!\\/!gs; |
602 |
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$to =~ s!/!\\/!gs; |
603 |
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604 |
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if ($from =~ m/^regex:(.+)$/) { |
605 |
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$from = $1; |
606 |
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} else { |
607 |
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$from = '\Q' . $from . '\E'; |
608 |
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} |
609 |
if ($sf =~ /^\^/) { |
if ($sf =~ /^\^/) { |
610 |
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my $need_subfield_data = '*'; # no |
611 |
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# if from is also subfield, require some data in between |
612 |
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# to correctly skip empty subfields |
613 |
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$need_subfield_data = '+' if ($from =~ m/^\\Q\^/); |
614 |
return |
return |
615 |
's/\Q'. $sf .'\E([^\^]*?)\Q'. $from .'\E([^\^]*?)/'. $sf .'$1'. $to .'$2/'; |
's/\Q'. $sf .'\E([^\^]' . $need_subfield_data . '?)'. $from .'([^\^]*?)/'. $sf .'$1'. $to .'$2/'; |
616 |
} else { |
} else { |
617 |
return |
return |
618 |
's/\Q'. $from .'\E/'. $to .'/g'; |
's/'. $from .'/'. $to .'/g'; |
619 |
} |
} |
620 |
} |
} |
621 |
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622 |
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623 |
|
=head2 modify_record_regexps |
624 |
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|
625 |
|
Generate hash with regexpes to be applied using L<filter>. |
626 |
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|
627 |
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my $regexpes = $input->modify_record_regexps( |
628 |
|
900 => { '^a' => { ' : ' => '^b' } }, |
629 |
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901 => { '*' => { '^b' => ' ; ' } }, |
630 |
|
); |
631 |
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632 |
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=cut |
633 |
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|
634 |
sub modify_record_regexps { |
sub modify_record_regexps { |
635 |
my $self = shift; |
my $self = shift; |
636 |
my $modify_record = {@_}; |
my $modify_record = {@_}; |
648 |
foreach my $from (keys %{ $modify_record->{$f}->{$sf} }) { |
foreach my $from (keys %{ $modify_record->{$f}->{$sf} }) { |
649 |
my $to = $modify_record->{$f}->{$sf}->{$from}; |
my $to = $modify_record->{$f}->{$sf}->{$from}; |
650 |
#die "no field?" unless defined($to); |
#die "no field?" unless defined($to); |
651 |
$log->debug("transform: |$from| -> |$to|"); |
my $d = "|$from| -> |$to|"; |
652 |
|
$log->debug("transform: $d"); |
653 |
|
|
654 |
my $regex = _get_regex($sf,$from,$to); |
my $regex = _get_regex($sf,$from,$to); |
655 |
push @{ $regexpes->{$f} }, $regex; |
push @{ $regexpes->{$f} }, { regex => $regex, debug => $d }; |
656 |
$log->debug("regex: $regex"); |
$log->debug("regex: $regex"); |
657 |
} |
} |
658 |
} |
} |
663 |
|
|
664 |
=head2 modify_file_regexps |
=head2 modify_file_regexps |
665 |
|
|
666 |
Generate hash with regexpes to be applied using l<filter> from |
Generate hash with regexpes to be applied using L<filter> from |
667 |
pseudo hash/yaml format for regex mappings. |
pseudo hash/yaml format for regex mappings. |
668 |
|
|
669 |
It should be obvious: |
It should be obvious: |
713 |
$log->debug("transform: |$from| -> |$to|"); |
$log->debug("transform: |$from| -> |$to|"); |
714 |
|
|
715 |
my $regex = _get_regex($sf,$from,$to); |
my $regex = _get_regex($sf,$from,$to); |
716 |
push @{ $regexpes->{$f} }, $regex; |
push @{ $regexpes->{$f} }, { |
717 |
|
regex => $regex, |
718 |
|
file => $modify_path, |
719 |
|
line => $., |
720 |
|
}; |
721 |
$log->debug("regex: $regex"); |
$log->debug("regex: $regex"); |
722 |
} |
} |
723 |
} |
} |