Update copyright year

[ZOOM-Perl-moved-to-github.git] / lib / Net / Z3950 / ZOOM.pm

diff --git a/lib/Net/Z3950/ZOOM.pm b/lib/Net/Z3950/ZOOM.pm
index e45a470..11f8b29 100644 (file)
--- a/lib/Net/Z3950/ZOOM.pm
+++ b/lib/Net/Z3950/ZOOM.pm
@@ -1,22 +1,20 @@
-# $Id: ZOOM.pm,v 1.23 2006-06-13 16:44:21 mike Exp $
-
 package Net::Z3950::ZOOM; 
 
 use 5.008;
 use strict;
 use warnings;
 
-our $VERSION = '1.09';
+our $VERSION = '1.29';
 
 require XSLoader;
 XSLoader::load('Net::Z3950::ZOOM', $VERSION);
 
 my($vs, $ss) = ("x" x 100, "x" x 100); # allocate space for these strings
 my $version = Net::Z3950::ZOOM::yaz_version($vs, $ss);
-if ($version < 0x020115 && ! -f "/tmp/ignore-ZOOM-YAZ-version-mismatch") {
+if ($version < 0x020132 && ! -f "/tmp/ignore-ZOOM-YAZ-version-mismatch") {
     warn <<__EOT__;
 *** WARNING!
-ZOOM-Perl requires at least version 2.1.21 of YAZ, but is currently
+ZOOM-Perl requires at least version 2.1.50 of YAZ, but is currently
 running against only version $vs (sys-string '$ss').
 Some things may not work.
 __EOT__
@@ -56,6 +54,21 @@ sub EVENT_RECV_RECORD { 8 }
 sub EVENT_RECV_SEARCH { 9 }
 sub EVENT_END { 10 }           # In YAZ 2.1.17 and later
 
+# CCL error-codes, which are in a different space from the ZOOM errors
+sub CCL_ERR_OK                { 0 }
+sub CCL_ERR_TERM_EXPECTED     { 1 }
+sub CCL_ERR_RP_EXPECTED       { 2 }
+sub CCL_ERR_SETNAME_EXPECTED  { 3 }
+sub CCL_ERR_OP_EXPECTED       { 4 }
+sub CCL_ERR_BAD_RP            { 5 }
+sub CCL_ERR_UNKNOWN_QUAL      { 6 }
+sub CCL_ERR_DOUBLE_QUAL       { 7 }
+sub CCL_ERR_EQ_EXPECTED       { 8 }
+sub CCL_ERR_BAD_RELATION      { 9 }
+sub CCL_ERR_TRUNC_NOT_LEFT   { 10 }
+sub CCL_ERR_TRUNC_NOT_BOTH   { 11 }
+sub CCL_ERR_TRUNC_NOT_RIGHT  { 12 }
+
 
 =head1 NAME
 
@@ -119,6 +132,46 @@ sub event_str {
     return "impossible event " . $code;
 }
 
+
+# Switch API variant depending on $type.  This works because the
+# get_string() and get_binary() functions have different returns
+# types, one of which is implemented as a NUL-terminated string and
+# the other as a pointer-and-length structure.
+#
+# Some Z39.50 servers, when asked for an OPAC-format record in the
+# case where no circulation information is available, will return a
+# USMARC record rather than an OPAC record containing only a
+# bibliographic part.  This non-OPAC records is not recognised by the
+# underlying record_get() code in ZOOM-C, which ends up returning a
+# null pointer.  To make life a little less painful when dealing with
+# such servers until ZOOM-C is fixed, this code recognises the
+# wrong-record-syntax case and returns the XML for the bibliographic
+# part anyway.
+#
+sub record_get {
+    my($rec, $type) = @_;
+
+    my $simpletype = $type;
+    $simpletype =~ s/;.*//;
+    if (grep { $type eq $_ } qw(database syntax schema)) {
+       return record_get_string($rec, $type);
+    } else {
+       my $val = record_get_binary($rec, $type);
+       if ($simpletype eq "opac" && !defined $val) {
+           my $newtype = $type;
+           if ($newtype !~ s/.*?;/xml;/) {
+               $newtype = "xml";
+           }
+           $val = record_get_binary($rec, $newtype);
+           $val = ("<opacRecord>\n  <bibliographicRecord>\n" . $val .
+                   "  </bibliographicRecord>\n</opacRecord>");
+
+       }
+       return $val;
+    }
+}
+
+
 =head1 SEE ALSO
 
 The C<ZOOM> module, included in the same distribution as this one.
@@ -129,7 +182,7 @@ Mike Taylor, E<lt>mike@indexdata.comE<gt>
 
 =head1 COPYRIGHT AND LICENCE
 
-Copyright (C) 2005 by Index Data.
+Copyright (C) 2005-2014 by Index Data.
 
 This library is free software; you can redistribute it and/or modify
 it under the same terms as Perl itself, either Perl version 5.8.4 or,