olaloux,
many thanks for your reply, your example was complete, but it is not quite what i asked for, the xml i am processing will not have the dtd definition i must specify with Libxml what one to use.
hence if you change your input xml to:
<?xml version="1.0" encoding="ISO-8859-1"?>
<countrieslist>
<countries count="2">
<country id="1234">
<name>
<en>Italy</en>
<fr>Italie</fr>
</name>
</country>
<country id="7890">
<name>
<en>Spain</en>
<fr>Espagne</fr>
</name>
</country>
</countries>
</countrieslist>
how do i get libxml to parse it then?
many thanks
Peewee
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by: olalouxPosted on 2002-10-14 at 01:03:00ID: 7332439
Take a good inhabit: put a reference to the DTD in the XML file, even if you don't want to put all the DTD there.
The sample I'll give to you show how you can validate an XML with XML::LibXML:
First: the DTD (an external one as you wished):
<!ELEMENT countrieslist (countries)>
<!ELEMENT countries (country*)>
<!ATTLIST countries count CDATA #REQUIRED>
<!ELEMENT country (name)>
<!ATTLIST country id CDATA #REQUIRED>
<!ELEMENT name (en, fr)>
<!ELEMENT en (#PCDATA)>
<!ELEMENT fr (#PCDATA)>
Second: the XML you want to validate:
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE countrieslist SYSTEM "/dtdpath/countrieslist.dt
<countrieslist>
<countries count="2">
<country id="1234">
<name>
<en>Italy</en>
<fr>Italie</fr>
</name>
</country>
<country id="7890">
<name>
<en>Spain</en>
<fr>Espagne</fr>
</name>
</country>
</countries>
</countrieslist>
Third: the Perl code to validate this XML with this external DTD ;-)
use strict;
use XML::LibXML;
use IO::Handle;
# Create a new parser
my $parser=new XML::LibXML;
$parser->validation(1);
$parser->recover(1);
# Let's start the parsing
my $fileHandler=new IO::Handle;
my $document;
if ($fileHandler->fdopen(file
eval { # Try to parse
$document=$parser->parse_f
};
if ($@ eq '') { # The $@ could contain the error
print "XML valid.\n";
} else {
print "XML not valid 'cause of $@ !\n";
}
$fileHandler->close;
}
To test that:
perl -d script.pl < xml.xml