—package
Pod::Simple::Methody;
use
strict;
use
warnings;
use
Pod::Simple ();
our
$VERSION
=
'3.45'
;
our
@ISA
= (
'Pod::Simple'
);
# Yes, we could use named variables, but I want this to be impose
# as little an additional performance hit as possible.
sub
_handle_element_start {
$_
[1] =~
tr
/-:./__/;
(
$_
[0]->can(
'start_'
.
$_
[1] )
||
return
)->(
$_
[0],
$_
[2]
);
}
sub
_handle_text {
(
$_
[0]->can(
'handle_text'
)
||
return
)->(
@_
);
}
sub
_handle_element_end {
$_
[1] =~
tr
/-:./__/;
(
$_
[0]->can(
'end_'
.
$_
[1] )
||
return
)->(
$_
[0],
$_
[2]
);
}
1;
__END__
=head1 NAME
Pod::Simple::Methody -- turn Pod::Simple events into method calls
=head1 SYNOPSIS
require 5;
use strict;
package SomePodFormatter;
use base qw(Pod::Simple::Methody);
sub handle_text {
my($self, $text) = @_;
...
}
sub start_head1 {
my($self, $attrs) = @_;
...
}
sub end_head1 {
my($self) = @_;
...
}
...and start_/end_ methods for whatever other events you want to catch.
=head1 DESCRIPTION
This class is of
interest to people writing Pod formatters based on Pod::Simple.
This class (which is very small -- read the source) overrides
Pod::Simple's _handle_element_start, _handle_text, and
_handle_element_end methods so that parser events are turned into method
calls. (Otherwise, this is a subclass of L<Pod::Simple> and inherits all
its methods.)
You can use this class as the base class for a Pod formatter/processor.
=head1 METHOD CALLING
When Pod::Simple sees a "=head1 Hi there", for example, it basically does
this:
$parser->_handle_element_start( "head1", \%attributes );
$parser->_handle_text( "Hi there" );
$parser->_handle_element_end( "head1" );
But if you subclass Pod::Simple::Methody, it will instead do this
when it sees a "=head1 Hi there":
$parser->start_head1( \%attributes ) if $parser->can('start_head1');
$parser->handle_text( "Hi there" ) if $parser->can('handle_text');
$parser->end_head1() if $parser->can('end_head1');
If Pod::Simple sends an event where the element name has a dash,
period, or colon, the corresponding method name will have a underscore
in its place. For example, "foo.bar:baz" becomes start_foo_bar_baz
and end_foo_bar_baz.
See the source for Pod::Simple::Text for an example of using this class.
=head1 SEE ALSO
L<Pod::Simple>, L<Pod::Simple::Subclassing>
=head1 SUPPORT
Questions or discussion about POD and Pod::Simple should be sent to the
pod-people@perl.org mail list. Send an empty email to
pod-people-subscribe@perl.org to subscribe.
This module is managed in an open GitHub repository,
L<https://github.com/perl-pod/pod-simple/>. Feel free to fork and contribute, or
to clone L<https://github.com/perl-pod/pod-simple.git> and send patches!
Patches against Pod::Simple are welcome. Please send bug reports to
<bug-pod-simple@rt.cpan.org>.
=head1 COPYRIGHT AND DISCLAIMERS
Copyright (c) 2002 Sean M. Burke.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
This program is distributed in the hope that it will be useful, but
without any warranty; without even the implied warranty of
merchantability or fitness for a particular purpose.
=head1 AUTHOR
Pod::Simple was created by Sean M. Burke <sburke@cpan.org>.
But don't bother him, he's retired.
Pod::Simple is maintained by:
=over
=item * Allison Randal C<allison@perl.org>
=item * Hans Dieter Pearcey C<hdp@cpan.org>
=item * David E. Wheeler C<dwheeler@cpan.org>
=back
=cut