Manual Reference Pages - POD::ABSTRACT::FILTER (3)
Pod::Abstract::Filter - Generic Pod-in to Pod-out filter.
This is a superclass for filter modules using
Pod::Abstract. Subclasses should override the filter
sub. Pod::Abstract::Filter classes in the Pod::Abstract::Filter
namespace will be used by the paf utility.
To create a filter, you need to implement:
Takes a Pod::Abstract::Node tree, and returns either another tree, or
a string. If a string is returned, it will be re-parsed to be input to
any following filter, or output directly if it is the last filter in
It is recommended your filter method produce a Node tree if you are able
to, as this will improve interoperability with other Pod::Abstract
If you want positional arguments following your filter in the style of:
paf find [thing] Pod::Abstract
then override require_params to list the named arguments that are to
be accepted after the filter name.
Create a new filter with the specified arguments.
Override to return a list of parameters that must be provided. This
will be accepted in order on the command line, unless they are first
set using the -flag=xxx notation.
Get the named param. Read only.
Stub method. Does nothing, just returns the original tree.
Run the filter. If $arg is a string, it will be parsed
first. Otherwise, the Abstract tree will be used. Returns either a
string or an abstract tree (which may be the original tree, modified).
Ben Lilburne <firstname.lastname@example.org>
COPYRIGHT AND LICENSE
Copyright (C) 2009 Ben Lilburne
This program is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.
|perl v5.20.3 ||POD::ABSTRACT::FILTER (3) ||2010-01-03 |
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