MIME::Visitor - walk through MIME parts and do stuff (like rewrite)


version 0.007


  # This will reverse all lines in each text part, taking care of all encoding
  # for you.

    sub { chomp; $_ = reverse . "\n"; },


MIME::Visitor provides a simple way to walk through the parts of a MIME message, taking action on each one. In general, this is not a very complicated thing to do, but having it in one place is convenient.

The most powerful feature of MIME::Visitor, though, is its methods for rewriting text parts. These methods take care of character sets for you so that you can treat everything like text instead of worrying about content transfer encoding or character set encoding.

At present, only MIME::Entity messages can be handled. Other types will be added in the future.


This library should run on perls released even a long time ago. It should work on any version of perl released in the last five years.

Although it may work on older versions of perl, no guarantee is made that the minimum required version will not be increased. The version may be increased for any reason, and there is no promise that patches will be accepted to lower the minimum required perl.



  MIME::Visitor->walk_parts($root, sub { ... });

This method calls the given code on every part of the given root message, including the root itself.


  MIME::Visitor->walk_leaves($root, sub { ... });

This method calls the given code on every leaf part of the given root message. It descends into multipart parts of the message without calling the callback on them.


  MIME::Visitor->walk_text_leaves($root, sub { ... });

This method behaves like walk_leaves, but only calls the callback on parts with a content type of text/plain or text/html.


  MIME::Visitor->rewrite_parts($root, sub { ... });

This method walks the text leaves of the MIME message, rewriting the content of the parts. For each text leaf, the callback is invoked like this:

  $code->(\$content, $part);

For more information, see "rewrite_content" in MIME::BodyMunger.


  MIME::Visitor->rewrite_all_lines($root, sub { ... });

This method behaves like rewrite_parts, but the callback is called for each line of each relevant part, rather than for the part's body as a whole.


Thanks to and, who sponsored the development of this module.


Ricardo SIGNES <>


This software is copyright (c) 2008 by Ricardo SIGNES.

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