# Muffin Rewrite Filter

    This filter can rewrite URLs using regular expressions and back
    substititions.  Rewrite rules are stored in a text file with one rule
    per line.  Each line consists of a regular expression, whitespace, and
    a rewrite substitution pattern.  Example rules:

        (^http://)www.hosta.com(/.*)	$1www.hostb.com$2
        /\?(http://.*)$			$1
        redir\?(http://.*)$			$1
        xfer\?url=(http://.*)$		$1

    User preferences:

    * Rewrite.rules

      Location of the rewrite rules file.  The default is ~/Muffin/rewrite.

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