use Getopt::Long;
use Term::ReadLine;
+$| = 1;
+
my $term = new Term::ReadLine 'yaz-cleanup';
my $OUT = $term->OUT || \*STDOUT;
+print $OUT "\nInteractive MARC Stream Editor starting up...\n";
my $count = 0;
+my $reccount = 0;
my $line = '';
-my @record = ();
-my @context= ();
+my @record = (); # current record storage
+my @context= (); # last 5 lines of file
-my %commands = ( '?' => \&help,
+open MARC, '<', 'incoming.marc.xml';
+open my $NUMARC, '>', 'incoming.clean.marc.xml';
+print $NUMARC '<?xml version="1.0" encoding="UTF-8"?>',"\n";
+open my $EXMARC, '>', 'incoming.exceptions.marc.xml';
+open MARC2, '<', 'incoming.marc.xml';
+<MARC2>;
+
+# this is the dispatch table which drives command selection in
+# edit(), below
+my %commands = ( c => \&print_context,
+ k => \&kill_line,
+ o => \&show_original,
+ t => \&commit_edit,
+ x => \&dump_record,
+ q => \&quit,
+ '?' => \&help,
h => \&help,
- c => \&print_context,
- d => \&dump_record,
- q => \&quit,
+ help => \&help,
);
+my @spinner = qw(- / | \\);
+my $sidx = 0;
-open MARC, '<', 'incoming.marc.xml';
-open NUMARC, '>', 'incoming.clean.marc.xml';
-
-my $line1 = getline();
+while (my $line = getline()) {
+ unless ($count % 2000) {
+ print "\rWorking... ", $spinner[$sidx];
+ $sidx++;
+ $sidx = 0 if ($sidx > $#spinner);
+ }
+ update_context();
-while (my $line2 = getline()) {
# catch empty datafield elements
- if ($line1 =~ m/<datafield tag="..." ind1="." ind2=".">/) {
- if ($line2 =~ m|</datafield>|) {
- print "Empty datafield scrubbed at line $count\n";
- $line1 = getline();
+ if ($line =~ m|</datafield>|) {
+ if ($record[-2] =~ m/<datafield tag="..." ind1="." ind2=".">/) {
+ pop @record; pop @record;
+ print $OUT "Empty datafield scrubbed at line $count\n";
next;
}
}
# clean misplaced dollarsigns
- if ($line1 =~ m|<subfield code="\$">c?\d+\.\d{2}|) {
- $line1 =~ s|"\$">c?(\d+\.\d{2})|"c">\$$1|;
- print "Dollar sign in subfield code corrected at line $count\n";
+ if ($line =~ m|<subfield code="\$">c?\d+\.\d{2}|) {
+ $line =~ s|"\$">c?(\d+\.\d{2})|"c">\$$1|;
+ print $OUT "Dollar sign in subfield code corrected at line $count\n";
}
# clean up tags with spaces in them
- $line1 =~ s/tag=" /tag="00/g;
- $line1 =~ s/tag=" /tag="0/g;
- $line1 =~ s/tag="-/tag="0/g;
- $line1 =~ s/tag="(\d\d) /tag="0$1/g;
+ $line =~ s/tag=" /tag="00/g;
+ $line =~ s/tag=" /tag="0/g;
+ $line =~ s/tag="-/tag="0/g;
+ $line =~ s/tag="(\d\d) /tag="0$1/g;
# naked ampersands
- edit("Looks like naked ampersand", $line1)
- if ($line1 =~ /&/ && $line1 !~ /&\w{1,7};/);
+ if ($line =~ /&/ && $line !~ /&\w{1,7};/)
+ { edit("Looks like naked ampersand", $line); next }
# subfields can't be non-alphanumeric
- die "Junk in subfield at line $count: $line1"
- if $line1 =~ /<subfield code="[^[:alnum:]]"/;
+ if ($line =~ /<subfield code="[^[:alnum:]]"/)
+ { edit("Junk in subfield", $line); next }
- # everything looks ok
- print NUMARC $line1;
- $line1 = $line2;
}
-print NUMARC $line1;
+print $NUMARC "</xml>\n";
+
+=head2 edit
+
+Handles the Term::ReadLine loop
+
+=cut
sub edit {
my ($msg, $line_in) = @_;
print $OUT "\n".$msg, " at line $count:\n";
- print $OUT "\t$line_in\n";
+ print_context();
while (1) {
my $line = $term->readline('yaz-cleanup>');
- $commands{$line}->();
+ if (defined $commands{$line}) {
+ my $term = $commands{$line}->($line_in);
+ last if $term;
+ } else {
+ push @record, $record[-1] if ($context[3] eq " [LINE KILLED\n]");
+ $record[-2] = "$line\n";
+ $context[3] = "$line\n";
+ print_context();
+ }
}
}
-sub print_context {
- print $OUT "\n", join(' ','',@context[0..2]);
- print $OUT '==>', $context[3];
- print $OUT ' ', $context[4],"\n";
-}
+=head2 getline
+
+Reads from the incoming MARC file; returns lines into the driver
+loop. Batches records for output, and maintains the context listing.
+
+=cut
sub getline {
my $l = <MARC>;
$count++;
if (defined $l) {
- if ($l =~ /<record>/)
- { @record = ($l) }
- else
- { push @record, $l }
- push @context, $l;
- shift @context if (@context > 5);
+ if ($l =~ /<record>/) {
+ @record = ($l);
+ $reccount++;
+ } elsif ($l =~ m|</record>|) {
+ write_record($NUMARC) if $reccount;
+ } else {
+ push @record, $l;
+ }
}
return $l;
}
+sub write_record {
+ my ($FH) = @_;
+ print $FH '<collection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd" xmlns="http://www.loc.gov/MARC21/slim">',"\n";
+ print $FH @record;
+ print $FH "</collection>\n";
+}
+
+sub update_context {
+ my $line2 = <MARC2>;
+ push @context, $line2;
+ shift @context if (@context > 5);
+}
+
+#-----------------------------------------------------------------------------------
+# command routines
+#-----------------------------------------------------------------------------------
+
+sub print_context {
+ print $OUT "\n", join(' ','',@context[0..2]);
+ print $OUT '==>', $context[3];
+ print $OUT ' ', $context[4],"\n";
+ return 0;
+}
+
+sub show_original {
+ my ($line_in) = @_;
+ print $OUT "\n$line_in\n";
+ return 0;
+}
+
+sub commit_edit { return 1 }
+
+sub kill_line {
+ my $tmp = pop @record;
+ pop @record;
+ push @record, $tmp;
+ $context[3] = " [LINE KILLED]\n";
+ print_context();
+ return 0;
+}
+
+sub dump_record {
+ my $line = <MARC>;
+ until ($line =~ m|</record>|) {
+ push @record, $line;
+ $line = <MARC>;
+ update_context;
+ }
+ push @record, $line;
+ write_record($EXMARC);
+}
+
sub help {
print $OUT <<HELP;
-Enter a replacement for this line, a blank line to dump this line, or a command.
+Type a replacement for the selected line, or enter a command.
+
Commands: c Show line context
- d Dump this record (redirect to exceptions file)
+ k Kill this line (remove from record)
+ o Show original line (problem before edits)
+ t Commit changes and finish editing
+ x Write this record to the exception file instead of output
q Quit
HELP
+return 0;
}
sub quit { exit }
projects / migration-tools.git / commitdiff