NAME

       XML::DOM::ValParser - an XML::DOM::Parser that validates at parse time

SYNOPSIS

        use XML::DOM::ValParser;

        my %expat_options = (KeepCDATA => 1,
                             Handlers => [ Unparsed => \&my_Unparsed_handler ]);
        my $parser = new XML::DOM::ValParser (%expat_options);

        eval {
            local $XML::Checker::FAIL = \&my_fail;
            my $doc = $parser->parsefile ("fail.xml");
            ... XML::DOM::Document was created successfully ...
        };
        if ($@) {
            # Either XML::Parser (expat) threw an exception or my_fail() died.
            ... your error handling code here ...
            # Note that the XML::DOM::Document is automatically disposed off and
            # will be garbage collected
        }

        # Throws an exception (with die) when an error is encountered, this
        # will stop the parsing process.
        # Don't die if a warning or info message is encountered, just print a message.
        sub my_fail {
            my $code = shift;
            die XML::Checker::error_string ($code, @_) if $code < 200;
            XML::Checker::print_error ($code, @_);
        }

DESCRIPTION

       Use XML::DOM::ValParser wherever you would use XML::DOM::Parser and your XML will be
       checked using XML::Checker at parse time.

       See XML::DOM for details on XML::DOM::Parser options.  See XML::Checker for details on
       setting the fail handler (my_fail.)

       The following handlers are currently supported, just like XML::DOM::Parser: Init, Final,
       Char, Start, End, Default, Doctype, CdataStart, CdataEnd, XMLDecl, Entity, Notation, Proc,
       Default, Comment, Attlist, Element, Unparsed.

XML::DOM::ValParser

       XML::DOM::ValParser extends from XML::Checker::Parser. It creates an XML::Checker object
       and routes all event handlers through the checker, before processing the events to create
       the XML::DOM::Document.

       Just like XML::Checker::Parser, the checker object can be retrieved with the getChecker()
       method and can be reused later on (provided that the DOCTYPE section of the
       XML::DOM::Document did not change in the mean time.)

       You can control which errors are fatal (and therefore should stop creation of the
       XML::DOM::Document) by filtering the appropriate error codes in the global
       $XML::Checker::FAIL handler (see "ERROR_HANDLING" in XML::Checker) and calling die or
       croak appropriately.

       Just like XML::Checker::Parser, XML::DOM::ValParser supports the SkipExternalDTD and
       SkipInsignifWS options. See XML::Checker::Parser for details.

AUTHOR

       Enno Derksen is the original author.

       Send bug reports, hints, tips, suggestions to T.J. Mather at <tjmather@tjmather.com>.

SEE ALSO

       XML::DOM, XML::Checker ("SEE_ALSO" in XML::Checker)