* elmo-util.el (elmo-buffer-field-primitive-condition-match): Fixed.

* elmo-util.el (elmo-buffer-field-primitive-condition-match): Fixed.

* elmo-nntp.el (elmo-nntp-default-use-xhdr): New variable.
(elmo-nntp-xhdr-p): New macro.
(elmo-nntp-set-xhdr): Ditto.
(elmo-nntp-parse-xhdr-response): New function.
(elmo-nntp-retrieve-field): Ditto.
(elmo-nntp-search-primitive): Ditto.
(elmo-nntp-search): Implemented.

* elmo-date.el (elmo-date-make-sortable-string): New macro.

* elmo-archive.el (elmo-archive-search): Set all number list to
`elmo-archive-field-condition-match'

* elmo-localdir.el (elmo-localdir-search): Likewise.

* elmo-maildir.el (elmo-maildir-search): Likewise.