Move xml_encode() from IRSpy to Utils

[irspy-moved-to-github.git] / lib / ZOOM / IRSpy / Utils.pm

diff --git a/lib/ZOOM/IRSpy/Utils.pm b/lib/ZOOM/IRSpy/Utils.pm
index 61636c4..c139995 100644 (file)
--- a/lib/ZOOM/IRSpy/Utils.pm
+++ b/lib/ZOOM/IRSpy/Utils.pm
@@ -1,4 +1,4 @@
-# $Id: Utils.pm,v 1.1 2006-10-30 15:02:06 mike Exp $
+# $Id: Utils.pm,v 1.2 2006-10-30 16:13:49 mike Exp $
 
 package ZOOM::IRSpy::Utils;
 
@@ -6,6 +6,40 @@ use 5.008;
 use strict;
 use warnings;
 
-sub x { return 1 }
+use Exporter 'import';
+our @EXPORT_OK = qw(xml_encode irspy_xpath_context);
+
+
+# Utility functions follow, exported for use of web UI
+
+# I can't -- just can't, can't, can't -- believe that this function
+# isn't provided by one of the core XML modules.  But the evidence all
+# says that it's not: among other things, XML::Generator and
+# Template::Plugin both roll their own.  So I will do likewise.  D'oh!
+#
+sub xml_encode {
+    my ($text) = @_;
+    $text =~ s/&/&/g;
+    $text =~ s/</&lt;/g;
+    $text =~ s/>/&gt;/g;
+    $text =~ s/['']/&apos;/g;
+    $text =~ s/[""]/&quot;/g;
+    return $text;
+}
+
+
+sub irspy_xpath_context {
+    my($zoom_record) = @_;
+
+    my $xml = $zoom_record->render();
+    my $parser = new XML::LibXML();
+    my $doc = $parser->parse_string($xml);
+    my $root = $doc->getDocumentElement();
+    my $xc = XML::LibXML::XPathContext->new($root);
+    $xc->registerNs(e => 'http://explain.z3950.org/dtd/2.0/');
+    $xc->registerNs(i => $ZOOM::IRSpy::irspy_ns);
+    return $xc;
+}
+
 
 1;