NAME
    FML::Filter::TextPlain - analyze the first plain text part in message.

SYNOPSIS
DESCRIPTION
    "FML::Filter::TextPlain" is a collectoin of filter rules based on mail
    body content, which tuned for plain texts.

METHODS
  new()
    constructor.

  set_rules( $rules )
    overwrite rules by specified @$rules ($rules is ARRAY_REF).

  body_check($msg)
    $msg is "Mail::Message" object.

    "Usage":

        use FML::Filter::TextPlain;
        my $obj = new FML::Filter::TextPlain;
        my $msg = $curproc->incoming_message_body();

        $obj->body_check($msg);
        if ($obj->error()) {
           # do something for wrong formated message ...
        }

  cleanup_buffer($args)
    remove some special syntax pattern for further check. For example, the
    pattern is a mail address. We remove it and check the remained buffer
    whether it is safe or not.

CODING STYLE
    See "http://www.fml.org/software/FNF/" on fml coding style guide.

AUTHOR
    Ken'ichi Fukamachi

COPYRIGHT
    Copyright (C) 2001,2002,2003,2004,2005,2006 Ken'ichi Fukamachi

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

HISTORY
    FML::Filter::TextPlain first appeared in fml8 mailing list driver
    package. See "http://www.fml.org/" for more details.