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

       XML::SAX - Simple API for XML

         use XML::SAX;

         # get a list of known parsers
         my $parsers = XML::SAX->parsers();

         # add/update a parser

         # remove parser

         # save parsers

       XML::SAX is a SAX parser access API for Perl. It includes classes and
       APIs required for implementing SAX drivers, along with a factory class
       for returning any SAX parser installed on the user's system.

       The factory class is XML::SAX::ParserFactory. Please see the
       documentation of that module for how to instantiate a SAX parser:
       XML::SAX::ParserFactory. However if you don't want to load up another
       manual page, here's a short synopsis:

         use XML::SAX::ParserFactory;
         use XML::SAX::XYZHandler;
         my $handler = XML::SAX::XYZHandler->new();
         my $p = XML::SAX::ParserFactory->parser(Handler => $handler);
         # or $p->parse_string("<foo/>") or $p->parse_file($fh);

       This will automatically load a SAX2 parser (defaulting to
       XML::SAX::PurePerl if no others are found) and return it to you.

       In order to learn how to use SAX to parse XML, you will need to read
       XML::SAX::Intro and for reference, XML::SAX::Specification.

       The first thing to remember in writing a SAX2 parser is to subclass
       XML::SAX::Base. This will make your life infinitely easier, by
       providing a number of methods automagically for you. See XML::SAX::Base
       for more details.

       When writing a SAX2 parser that is compatible with XML::SAX, you need
       to inform XML::SAX of the presence of that driver when you install it.
       In order to do that, XML::SAX contains methods for saving the fact that
       the parser exists on your system to a "INI" file, which is then loaded
       to determine which parsers are installed.

       The best way to do this is to follow these rules:

       o   Add XML::SAX as a prerequisite in Makefile.PL:

                 PREREQ_PM => { 'XML::SAX' => 0 },

           Alternatively you may wish to check for it in other ways that will
           cause more than just a warning.

       o   Add the following code snippet to your Makefile.PL:

             sub MY::install {
               package MY;
               my $script = shift->SUPER::install(@_);
               if (ExtUtils::MakeMaker::prompt(
                 "Do you want to modify ParserDetails.ini?", 'Y')
                 =~ /^y/i) {
                 $script =~ s/install :: (.*)$/install :: $1 install_sax_driver/m;
                 $script .= <<"INSTALL";

             install_sax_driver :
             \t\@\$(PERL) -MXML::SAX -e "XML::SAX->add_parser(q(\$(NAME)))->save_parsers()"

               return $script;

           Note that you should check the output of this - \$(NAME) will use
           the name of your distribution, which may not be exactly what you
           want. For example XML::LibXML has a driver called
           XML::LibXML::SAX::Generator, which is used in place of \$(NAME) in
           the above.

       o   Add an XML::SAX test:

           A test file should be added to your t/ directory containing
           something like the following:

             use Test;
             BEGIN { plan tests => 3 }
             use XML::SAX;
             use XML::SAX::PurePerl::DebugHandler;
             local $XML::SAX::ParserPackage = 'XML::SAX::MyDriver';
             eval {
               my $handler = XML::SAX::PurePerl::DebugHandler->new();
               my $parser = XML::SAX::ParserFactory->parser(Handler => $handler);

       By default, XML::SAX exports nothing into the caller's namespace.
       However you can request the symbols "Namespaces" and "Validation" which
       are the URIs for those features, allowing an easier way to request
       those features via ParserFactory:

         use XML::SAX qw(Namespaces Validation);
         my $factory = XML::SAX::ParserFactory->new();
         my $parser = $factory->parser();

       Current maintainer: Grant McLean, grantm@cpan.org

       Originally written by:

       Matt Sergeant, matt@sergeant.org

       Kip Hampton, khampton@totalcinema.com

       Robin Berjon, robin@knowscape.com

       This is free software, you may use it and distribute it under the same
       terms as Perl itself.

       XML::SAX::Base for writing SAX Filters and Parsers

       XML::SAX::PurePerl for an XML parser written in 100% pure perl.

       XML::SAX::Exception for details on exception handling

perl v5.12.1                      2008-08-05                            SAX(3)

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