NAME
    Pod::Weaver::Plugin::EnsureUniqueSections - Ensure that POD has no
    duplicate section headers.

VERSION
    version 0.111220

SYNOPSIS
    In weaver.ini

        [-EnsureUniqueSections]
        strict = 0 ; The default

DESCRIPTION
    This plugin simply ensures that the POD after weaving has no duplicate
    top-level section headers. This can help you if you are converting from
    writing all your own POD to generating it with Pod::Weaver. If you begin
    generating a section with Pod::Weaver but you forget to delete the
    manually written section of the same name, this plugin will warn you.

    By default, this module does some tricks to detect similar headers, such
    as "AUTHOR" and "AUTHORS". You can turn this off by setting "strict = 1"
    in weaver.ini, in which case only *exactly identical* headers will be
    considered duplicates of each other.

  DIAGNOSTIC MESSAGES
    If any similar (or identical if "strict" is 1) section headers are
    found, all of their names will be listed on STDERR. Generally, you
    should take this list of modules and remove each from your POD. Then you
    should ensure that the sections generated by Pod::Weaver are suitable
    substitutes for those sections. In the case of similar names, only the
    first instance in each set of similar names will be listed.

ATTRIBUTES
  strict
    If set to true (1), section headers will only be considered duplicates
    if they match exactly. If false (the default), certain similar section
    headers will be considered equivalent. The following similarities are
    considered (more may be added later):

    All whitespace and punctuation are equivalant
        For example, the following would all be considered duplicates of
        each other: " SEE ALSO", "SEE ALSO", "SEE,ALSO:".

    Case-insensitive
        For example, "Name" and "NAME" would be considered duplicates.

    Sets of words separated by "AND".
        For example, "COPYRIGHT AND LICENSE" would be considered a duplicate
        of "LICENSE AND COPYRIGHT".

    Plurals
        A plural noun is considered equivalent to its singular. For example,
        "AUTHOR" and "AUTHORS" are the same section. A section header
        consisting of multiple words, such as "DISCLAIMER OF WARRANTY", is
        not affected by this rule.

        This rule uses Lingua::EN::Inflect::Number to interconvert between
        singular and plural forms. Hopefully you don't need to make a
        section called "OCTOPI".

    Note that these rules apply recursively, so "Authors; and Contributors"
    would be a duplicate of " CONTRIBUTORS AND AUTHOR".

METHODS
  finalize_document
    This method checks the document for duplicate headers, and throws an
    error if any are found. If no duplicates are found, it simply does
    nothing. It does not modify the POD in any way.

BUGS AND LIMITATIONS
  Should also be available as a Dist::Zilla testing plugin
    I would like to convert this to a Dist::Zilla testing plugin, so that
    you can use it without enabling Pod::Weaver if you don't want to, but I
    haven't yet figured out how to find all files in a dist with POD and
    extract all their headers. If anyone knows, please tell me.

  No recursive duplicate checks
    This module only checks for duplicates in top-level headers (i.e.
    "head1"). It could be extended to check the "head2" elements within each
    "head1" section and so on, but generally Pod::Weaver is not called upon
    to generate subsections, so you are unlikely to end up with duplicates
    at any level other than the first. However, if there is demand for
    recursive duplicate detection, I will add it.

    Please report any bugs or feature requests to
    "rct+perlbug@thompsonclan.org".

SEE ALSO
    *   Pod::Weaver

INSTALLATION
    See perlmodinstall for information and options on installing Perl
    modules.

AUTHOR
    Ryan C. Thompson <rct@thompsonclan.org>

COPYRIGHT AND LICENSE
    This software is copyright (c) 2010 by Ryan C. Thompson.

    This is free software; you can redistribute it and/or modify it under
    the same terms as the Perl 5 programming language system itself.

DISCLAIMER OF WARRANTY
    BECAUSE THIS SOFTWARE IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
    FOR THE SOFTWARE, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
    OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
    PROVIDE THE SOFTWARE "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
    EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE
    ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE IS WITH
    YOU. SHOULD THE SOFTWARE PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL
    NECESSARY SERVICING, REPAIR, OR CORRECTION.

    IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
    WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
    REDISTRIBUTE THE SOFTWARE AS PERMITTED BY THE ABOVE LICENCE, BE LIABLE
    TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL, OR
    CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
    SOFTWARE (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING
    RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A
    FAILURE OF THE SOFTWARE TO OPERATE WITH ANY OTHER SOFTWARE), EVEN IF
    SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
    DAMAGES.