* For each flag that is not present, the opposite action (add/remove)
* is performed for the corresponding tags.
*
- * The only filenames examined for flags are filenames which appear to
- * be within a maildir directory, (the file must be in a directory
- * named "new" or "cur" and there must be a neighboring directory
- * named respectively "cur" or "new"). The flags are identified as
- * trailing components of the filename after a sequence of ":2,".
+ * Flags are identified as trailing components of the filename after a
+ * sequence of ":2,".
*
* If there are multiple filenames associated with this message, the
* flag is considered present if it appears in one or more
*
* If the filename is not in a maildir directory, do nothing.
* (A maildir directory is determined as a directory named "new" or
- * "cur" with a neighboring directory named respectively "cur" or
- * "new".)
+ * "cur".)
*
* If the filename is in a maildir directory, rename the file so that
* its filename ends with the sequence ":2," followed by zero or more
* 'R' iff the message has the "replied" tag
* 'S' iff the message does not have the "unread" tag
*
- * Any existing flags unmentioned in the list above are left
- * unaffected by the rename.
+ * Warning: any existing flags unmentioned in the list above will be
+ * removed by this renaming.
*
* Also, if this filename is in a directory named "new", rename it to
* be within the neighboring directory named "cur".