prelim readline work

diff --git a/yaz-cleanup b/yaz-cleanup
index 1f9d93d..091682c 100755 (executable)
--- a/yaz-cleanup
+++ b/yaz-cleanup
@@ -3,34 +3,37 @@
 use strict;
 use warnings;
 
-my $skip = shift || 0;
+use Getopt::Long;
+use Term::ReadLine;
+
+my $term = new Term::ReadLine 'yaz-cleanup';
+my $OUT = $term->OUT || \*STDOUT;
+
 my $count = 0;
-$| = 1;
+my $line = '';
+
+my @record = ();
+my @context= ();
+
+my %commands = ( '?' => \&help,
+                 h   => \&help,
+                 c   => \&print_context,
+                 d   => \&dump_record,
+                 q   => \&quit,
+               );
+
 
 open MARC, '<', 'incoming.marc.xml';
 open NUMARC, '>', 'incoming.clean.marc.xml';
 
-if ($skip) {
-    until ($count == ($skip - 1)) {
-        my $t = <MARC>;
-        print NUMARC $t;
-        $count++;
-        printf("\rSpinning on to record %s (%2.2f%%)", $skip, ($count / $skip *100))
-          unless ($count % 1000);
-    }
-    print "\nScrubbing resumes...\n" if $skip;
-}
-
-my $line1 = <MARC>;
+my $line1 = getline();
 
-while (my $line2 = <MARC>) {
-    $count++;
+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 = <MARC>;
-            $count++;
+            $line1 = getline();
             next;
         }
     }
@@ -48,7 +51,7 @@ while (my $line2 = <MARC>) {
     $line1 =~ s/tag="(\d\d) /tag="0$1/g;
 
     # naked ampersands
-    die "Looks like naked ampersand at line $count: $line1"
+    edit("Looks like naked ampersand", $line1)
       if ($line1 =~ /&/ && $line1 !~ /&\w{1,7};/);
 
     # subfields can't be non-alphanumeric
@@ -60,3 +63,46 @@ while (my $line2 = <MARC>) {
     $line1 = $line2;
 }
 print NUMARC $line1;
+
+sub edit {
+    my ($msg, $line_in) = @_;
+    print $OUT "\n".$msg, " at line $count:\n";
+    print $OUT "\t$line_in\n";
+    while (1) {
+        my $line = $term->readline('yaz-cleanup>');
+        $commands{$line}->();
+    }
+}
+
+sub print_context {
+    print $OUT "\n", join('   ','',@context[0..2]);
+    print $OUT '==>', $context[3];
+    print $OUT '   ', $context[4],"\n";
+}
+
+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);
+    }
+    return $l;
+}
+
+sub help {
+print $OUT <<HELP;
+
+Enter a replacement for this line, a blank line to dump this line, or a command.
+Commands: c  Show line context
+          d  Dump this record (redirect to exceptions file)
+          q  Quit
+
+HELP
+}
+
+sub quit { exit }