common/tools/raptor/XML/SAX.pm
changeset 906 5239d4d0bed1
parent 905 9ed73a51c728
child 907 bab81256b297
--- a/common/tools/raptor/XML/SAX.pm	Fri Mar 05 16:16:43 2010 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,379 +0,0 @@
-# $Id: SAX.pm,v 1.27 2007/02/07 09:33:50 grant Exp $
-
-package XML::SAX;
-
-use strict;
-use vars qw($VERSION @ISA @EXPORT_OK);
-
-$VERSION = '0.15';
-
-use Exporter ();
-@ISA = ('Exporter');
-
-@EXPORT_OK = qw(Namespaces Validation);
-
-use File::Basename qw(dirname);
-use File::Spec ();
-use Symbol qw(gensym);
-use XML::SAX::ParserFactory (); # loaded for simplicity
-
-use constant PARSER_DETAILS => "ParserDetails.ini";
-
-use constant Namespaces => "http://xml.org/sax/features/namespaces";
-use constant Validation => "http://xml.org/sax/features/validation";
-
-my $known_parsers = undef;
-
-# load_parsers takes the ParserDetails.ini file out of the same directory
-# that XML::SAX is in, and looks at it. Format in POD below
-
-=begin EXAMPLE
-
-[XML::SAX::PurePerl]
-http://xml.org/sax/features/namespaces = 1
-http://xml.org/sax/features/validation = 0
-# a comment
-
-# blank lines ignored
-
-[XML::SAX::AnotherParser]
-http://xml.org/sax/features/namespaces = 0
-http://xml.org/sax/features/validation = 1
-
-=end EXAMPLE
-
-=cut
-
-sub load_parsers {
-    my $class = shift;
-    my $dir = shift;
-    
-    # reset parsers
-    $known_parsers = [];
-    
-    # get directory from wherever XML::SAX is installed
-    if (!$dir) {
-        $dir = $INC{'XML/SAX.pm'};
-        $dir = dirname($dir);
-    }
-    
-    my $fh = gensym();
-    if (!open($fh, File::Spec->catfile($dir, "SAX", PARSER_DETAILS))) {
-        XML::SAX->do_warn("could not find " . PARSER_DETAILS . " in $dir/SAX\n");
-        return $class;
-    }
-
-    $known_parsers = $class->_parse_ini_file($fh);
-
-    return $class;
-}
-
-sub _parse_ini_file {
-    my $class = shift;
-    my ($fh) = @_;
-
-    my @config;
-    
-    my $lineno = 0;
-    while (defined(my $line = <$fh>)) {
-        $lineno++;
-        my $original = $line;
-        # strip whitespace
-        $line =~ s/\s*$//m;
-        $line =~ s/^\s*//m;
-        # strip comments
-        $line =~ s/[#;].*$//m;
-        # ignore blanks
-        next if $line =~ /^$/m;
-        
-        # heading
-        if ($line =~ /^\[\s*(.*)\s*\]$/m) {
-            push @config, { Name => $1 };
-            next;
-        }
-        
-        # instruction
-        elsif ($line =~ /^(.*?)\s*?=\s*(.*)$/) {
-            unless(@config) {
-                push @config, { Name => '' };
-            }
-            $config[-1]{Features}{$1} = $2;
-        }
-
-        # not whitespace, comment, or instruction
-        else {
-            die "Invalid line in ini: $lineno\n>>> $original\n";
-        }
-    }
-
-    return \@config;
-}
-
-sub parsers {
-    my $class = shift;
-    if (!$known_parsers) {
-        $class->load_parsers();
-    }
-    return $known_parsers;
-}
-
-sub remove_parser {
-    my $class = shift;
-    my ($parser_module) = @_;
-
-    if (!$known_parsers) {
-        $class->load_parsers();
-    }
-    
-    @$known_parsers = grep { $_->{Name} ne $parser_module } @$known_parsers;
-
-    return $class;
-}
- 
-sub add_parser {
-    my $class = shift;
-    my ($parser_module) = @_;
-
-    if (!$known_parsers) {
-        $class->load_parsers();
-    }
-    
-    # first load module, then query features, then push onto known_parsers,
-    
-    my $parser_file = $parser_module;
-    $parser_file =~ s/::/\//g;
-    $parser_file .= ".pm";
-
-    require $parser_file;
-
-    my @features = $parser_module->supported_features();
-    
-    my $new = { Name => $parser_module };
-    foreach my $feature (@features) {
-        $new->{Features}{$feature} = 1;
-    }
-
-    # If exists in list already, move to end.
-    my $done = 0;
-    my $pos = undef;
-    for (my $i = 0; $i < @$known_parsers; $i++) {
-        my $p = $known_parsers->[$i];
-        if ($p->{Name} eq $parser_module) {
-            $pos = $i;
-        }
-    }
-    if (defined $pos) {
-        splice(@$known_parsers, $pos, 1);
-        push @$known_parsers, $new;
-        $done++;
-    }
-
-    # Otherwise (not in list), add at end of list.
-    if (!$done) {
-        push @$known_parsers, $new;
-    }
-    
-    return $class;
-}
-
-sub save_parsers {
-    my $class = shift;
-    
-    # get directory from wherever XML::SAX is installed
-    my $dir = $INC{'XML/SAX.pm'};
-    $dir = dirname($dir);
-    
-    my $file = File::Spec->catfile($dir, "SAX", PARSER_DETAILS);
-    chmod 0644, $file;
-    unlink($file);
-    
-    my $fh = gensym();
-    open($fh, ">$file") ||
-        die "Cannot write to $file: $!";
-
-    foreach my $p (@$known_parsers) {
-        print $fh "[$p->{Name}]\n";
-        foreach my $key (keys %{$p->{Features}}) {
-            print $fh "$key = $p->{Features}{$key}\n";
-        }
-        print $fh "\n";
-    }
-
-    print $fh "\n";
-
-    close $fh;
-
-    return $class;
-}
-
-sub do_warn {
-    my $class = shift;
-    # Don't output warnings if running under Test::Harness
-    warn(@_) unless $ENV{HARNESS_ACTIVE};
-}
-
-1;
-__END__
-
-=head1 NAME
-
-XML::SAX - Simple API for XML
-
-=head1 SYNOPSIS
-
-  use XML::SAX;
-  
-  # get a list of known parsers
-  my $parsers = XML::SAX->parsers();
-  
-  # add/update a parser
-  XML::SAX->add_parser(q(XML::SAX::PurePerl));
-
-  # remove parser
-  XML::SAX->remove_parser(q(XML::SAX::Foodelberry));
-
-  # save parsers
-  XML::SAX->save_parsers();
-
-=head1 DESCRIPTION
-
-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.
-
-=head1 USING A SAX2 PARSER
-
-The factory class is XML::SAX::ParserFactory. Please see the
-documentation of that module for how to instantiate a SAX parser:
-L<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);
-  $p->parse_uri("foo.xml");
-  # 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
-L<XML::SAX::Intro> and for reference, L<XML::SAX::Specification>.
-
-=head1 WRITING A SAX2 PARSER
-
-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 L<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:
-
-=over 4
-
-=item * Add XML::SAX as a prerequisite in Makefile.PL:
-
-  WriteMakefile(
-      ...
-      PREREQ_PM => { 'XML::SAX' => 0 },
-      ...
-  );
-
-Alternatively you may wish to check for it in other ways that will
-cause more than just a warning.
-
-=item * 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()"
-  
-  INSTALL
-    }
-    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.
-
-=item * 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;
-  XML::SAX->add_parser(q(XML::SAX::MyDriver));
-  local $XML::SAX::ParserPackage = 'XML::SAX::MyDriver';
-  eval {
-    my $handler = XML::SAX::PurePerl::DebugHandler->new();
-    ok($handler);
-    my $parser = XML::SAX::ParserFactory->parser(Handler => $handler);
-    ok($parser);
-    ok($parser->isa('XML::SAX::MyDriver');
-    $parser->parse_string("<tag/>");
-    ok($handler->{seen}{start_element});
-  };
-
-=back
-
-=head1 EXPORTS
-
-By default, XML::SAX exports nothing into the caller's namespace. However you
-can request the symbols C<Namespaces> and C<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();
-  $factory->require_feature(Namespaces);
-  $factory->require_feature(Validation);
-  my $parser = $factory->parser();
-
-=head1 AUTHOR
-
-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
-
-=head1 LICENSE
-
-This is free software, you may use it and distribute it under
-the same terms as Perl itself.
-
-=head1 SEE ALSO
-
-L<XML::SAX::Base> for writing SAX Filters and Parsers
-
-L<XML::SAX::PurePerl> for an XML parser written in 100%
-pure perl.
-
-L<XML::SAX::Exception> for details on exception handling
-
-=cut
-