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PPI::Token::BOM(3)                   User Contributed Perl Documentation                  PPI::Token::BOM(3)



NAME
       PPI::Token::BOM - Tokens representing Unicode byte order marks

INHERITANCE
         PPI::Token::BOM
         isa PPI::Token
             isa PPI::Element

DESCRIPTION
       This is a special token in that it can only occur at the beginning of documents.  If a BOM byte mark
       occurs elsewhere in a file, it should be treated as PPI::Token::Whitespace.  We recognize the byte
       order marks identified at this URL: <http://www.unicode.org/faq/utf_bom.html#BOM>

           UTF-32, big-endian     00 00 FE FF
           UTF-32, little-endian  FF FE 00 00
           UTF-16, big-endian     FE FF
           UTF-16, little-endian  FF FE
           UTF-8                  EF BB BF

       Note that as of this writing, PPI only has support for UTF-8 (namely, in POD and strings) and no
       support for UTF-16 or UTF-32.  We support the BOMs of the latter two for completeness only.

       The BOM is considered non-significant, like white space.

METHODS
       There are no additional methods beyond those provided by the parent PPI::Token and PPI::Element
       classes.

SUPPORT
       See the support section in the main module

AUTHOR
       Chris Dolan <cdolan@cpan.org>

COPYRIGHT
       Copyright 2001 - 2011 Adam Kennedy.

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

       The full text of the license can be found in the LICENSE file included with this module.



perl v5.16.2                                     2011-02-25                               PPI::Token::BOM(3)