[perl-xml-cvs] CVS: perl-xml-faq perl-xml-faq.xml,1.20,1.21

[Grant M. <gr...@us...>]

Update of /cvsroot/perl-xml/perl-xml-faq
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv4540

Modified Files:
	perl-xml-faq.xml 
Log Message:
- integrate tip from Dan Horne re schema validation using XML::LibXML

Index: perl-xml-faq.xml
===================================================================
RCS file: /cvsroot/perl-xml/perl-xml-faq/perl-xml-faq.xml,v
retrieving revision 1.20
retrieving revision 1.21
diff -u -d -r1.20 -r1.21
--- perl-xml-faq.xml	11 Feb 2005 08:06:16 -0000	1.20
+++ perl-xml-faq.xml	2 Nov 2005 09:03:03 -0000	1.21
@@ -1829,6 +1829,48 @@
     </answer>
   </qandaentry>
 
+  <qandaentry id="validation_libxml_xsd">
+    <question>
+      <para>W3C Schema Validation With <classname>XML::LibXML</classname></para>
+    </question>
+    <answer>
+
+      <para><classname>XML::LibXML</classname> provides undocumented support
+      for validating against a W3C schema.  Here's an example of how you might
+      use it (contributed by Dan Horne):</para>
+
+      <programlisting><![CDATA[
+use XML::LibXML;
+
+my $schema_file = 'po.xsd';
+my $document    = 'po.xml';
+
+my $schema = XML::LibXML::Schema->new(location => $schema_file);
+
+my $parser = XML::LibXML->new;
+my $doc    = $parser->parse_file($document);
+
+eval { $schema->validate($doc) };
+die $@ if $@;
+
+print "$document validated successfully\n";
+	]]></programlisting>
+
+      <para>The referenced XSD schema file and sample XML document can be 
+      downloaded from the <ulink url="http://www.w3.org/TR/xmlschema-0/">W3C 
+      Schema Primer</ulink>.</para>
+
+      <para>The xmllint command line validator included in the libxml2
+      distribution can also do W3C schema validation.  You can use it like
+      this:</para>
+
+      <programlisting><![CDATA[
+xmllint --noout --schema po.xsd po.xml
+	]]></programlisting>
+
+    </answer>
+  </qandaentry>
+
   <qandaentry id="validation_xerces">
     <question>
       <para>W3C Schema Validation With <classname>XML::Xerces</classname></para>
@@ -1852,7 +1894,24 @@
       <para>Sam Tregar's <classname>XML::Validator::Schema</classname> allows
       you to validate XML documents against a W3C XML Schema.  It does not
       implement the full W3C XML Schema recommendation, but a useful
-      subset.</para>
+      subset.  Here's an example:</para>
+
+      <programlisting><![CDATA[
+use XML::SAX::ParserFactory;
+use XML::Validator::Schema;
+
+my $schema_file = 'po.xsd';
+my $document    = 'po.xml';
+
+my $validator = XML::Validator::Schema->new(file => $schema_file);
+
+my $parser = XML::SAX::ParserFactory->parser(Handler => $validator);
+
+eval { $parser->parse_uri($document); };
+die $@ if $@;
+
+print "$document validated successfully\n";
+	]]></programlisting>
 
     </answer>
   </qandaentry>