xml::sax::documentlocator5.18(3) [mojave man page]

SAX::DocumentLocator(3) 				User Contributed Perl Documentation				   SAX::DocumentLocator(3)

NAME

       XML::SAX::DocumentLocator - Helper class for document locators

SYNOPSIS

	 my $locator = XML::SAX::DocumentLocator->new(
	     sub { $object->get_public_id },
	     sub { $object->get_system_id },
	     sub { $reader->current_line },
	     sub { $reader->current_column },
	     sub { $reader->get_encoding },
	     sub { $reader->get_xml_version },
	 );

DESCRIPTION

       This module gives you a tied hash reference that calls the specified closures when asked for PublicId, SystemId, LineNumber and
       ColumnNumber.

       It is useful for writing SAX Parsers so that you don't have to constantly update the line numbers in a hash reference on the object you
       pass to set_document_locator(). See the source code for XML::SAX::PurePerl for a usage example.

API

       There is only 1 method: "new". Simply pass it a list of closures that when called will return the PublicId, the SystemId, the LineNumber,
       the ColumnNumber, the Encoding and the XMLVersion respectively.

       The closures are passed a single parameter, the key being requested. But you're free to ignore that.

perl v5.18.2							    2009-10-10						   SAX::DocumentLocator(3)

XML::SAX::Exception(3)					User Contributed Perl Documentation				    XML::SAX::Exception(3)

NAME

       XML::SAX::Exception - Exception classes for XML::SAX

SYNOPSIS

	 throw XML::SAX::Exception::NotSupported(
		 Message => "The foo feature is not supported",
		 );

DESCRIPTION

       This module is the base class for all SAX Exceptions, those defined in the spec as well as those that one may create for one's own SAX
       errors.

       There are three subclasses included, corresponding to those of the SAX spec:

	 XML::SAX::Exception::NotSupported
	 XML::SAX::Exception::NotRecognized
	 XML::SAX::Exception::Parse

       Use them wherever you want, and as much as possible when you encounter such errors. SAX is meant to use exceptions as much as possible to
       flag problems.

CREATING NEW EXCEPTION CLASSES

       All you need to do to create a new exception class is:

	 @XML::SAX::Exception::MyException::ISA = ('XML::SAX::Exception')

       The given package doesn't need to exist, it'll behave correctly this way. If your exception refines an existing exception class, then you
       may also inherit from that instead of from the base class.

THROWING EXCEPTIONS

       This is as simple as exemplified in the SYNOPSIS. In fact, there's nothing more to know. All you have to do is:

	 throw XML::SAX::Exception::MyException( Message => 'Something went wrong' );

       and voila, you've thrown an exception which can be caught in an eval block.

perl v5.18.2							    2011-09-14						    XML::SAX::Exception(3)