Fix Emacs crash in mime-view

Emacs crashes with segmentation fault when mime-view tries to display malformed
base64 attach like this one:

Content-Type: text/plain
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="dashik.V4S"

Attachment is a binary file, but content-type is set to text/plain. Function
decode-coding-string crashes in such sutuation when encoding set to x-ctext.
Default encoding in APEL is x-unknown, but Wl reassigns it to x-ctext to make
summary buffer display non-ascii characters in message correctly. It is not
necessary to do for invalid attachments, so put default-mime-charset back to
x-unknown while displaying entities.

IMAP: use partial updates

Use partial updates for refreshing messages list. If old messages were
not changed on server side, we can just take new messages and join them
with old. It is much faster and saves a lot of traffic, especially on
large mailing lists.

IMAP: fix bug with obtaining wrong capabilities from Zimbra server

Zimbra IMAP server returns only few basic capabilities
when client asks CAPABILITY before LOGIN. Wanderlust remembers
first capabilities answer and, thus, can't use all
extended features anymore.

Fix it by asking for capabilities also after login.

IMAP: better logging

Logging calls rearranged a bit, added timestamps.

IMAP: added support for RFC4731

This extension (called ESEARCH) allows to reduce traffic from IMAP server,
if server supports it.

Severs known to support ESEARCH: Zimbra, Dovecot 1.2.

http://tools.ietf.org/html/rfc4731

This commit was manufactured by cvs2svn to create branch 'wl-2_15_6-vtl'.

(elmo-spam-bsfilter-update-switch): Change default value to `--auto-update'.

Update.

(wl-summary-get-prev-unread-folder): Use `with-current-buffer' instead of `save-excursion'.
Inline temporary variable `cur-id'.
(wl-summary-get-next-unread-folder): Ditto.
(wl-summary-get-next-folder): Ditto.
(wl-summary-get-prev-folder): Ditto.  Remove local variable `last-entity'.

(wl-summary-previous-message-number): New function.
(wl-summary-next-message-number): Ditto.
(wl-summary-default-get-next-msg): Use `wl-summary-previous-message-number' and
`wl-summary-next-message-number'.

* wl-demo.el (wl-demo-copyright-notice): Add 2009.

* INSTALL: Updated recommended version of FLIM.
* INSTALL.ja: Ditto.

* wl-summary.el (wl-summary-buffer-folder-name)
(wl-draft-config-body-goto-header): Use backquote instead of quote.
* wl-draft.el (wl-draft-body-goto-top)
(wl-draft-body-goto-bottom) (wl-draft-config-body-goto-header): Ditto.

* elmo-pop3.el (elmo-pop3-read-contents): Add `elmo-pop3-read-point' barrier.

* elmo-pop3.el (elmo-pop3-read-contents): Fix double `goto-char'.

2008-07-06 YAMASHITA Junji <ysiijj@gmail.com>

* elmo-pop3.el (elmo-pop3-read-contents): improving performance:
goto the previous end-point insead of the head-point, and use
`search-forward' instead of `re-search-forward'.

2008-06-30  Tetsurou Okazaki  <okazaki@be.to>

* elmo-imap4.el (elmo-imap4-parse-status): Use `case' instead of `cond'.

2008-06-30  Don Bashford  <Don.Bashford@stjude.org>

* elmo-imap4.el (elmo-imap4-parse-status): Accept IMAP4 tokens in a
case-insensitive fashion.

Fix comments.

* ptexinfmt.el (texinfo-format-geq, texinfo-format-leq,): Support @geq and @leq.

Update to version 2008-04-18.10 (Texinfo 4.12).

Update.

(wl-message-decrypt-pgp-nonmime): Upcase "pgp" in the error message.
(wl-message-verify-pgp-nonmime): Cause an error if no PGP signed region is found.

(elmo-imap4-send-command): Combine `process-send-string' calls.

wl-expire.el: Fix Comentary section.

* wl-mime.el:  Add (eval-when-compile (require 'mmbuffer)).
Require mime-parse, elmo-mime, and wl-util.

* wl-summary.el: Add (eval-when-compile (require 'elmo-filter)).

* wl-util.el: Add (eval-when-compile (require 'elmo-pop3)).

* wl-template.el: Require elmo-util and wl-vars.

* elmo-util.el (elmo-add-name-to-file, elmo-field-body): Use
`eval-and-compile' for suppress compile warnings.

* elmo-vars.el (dynamic-link, dynamic-call): Use `defalias-maybe' instead of `defun-maybe'

Add (eval-when-compile (require 'static)).

* wl-mime.el (wl-mime-display-header): Revert last change.
Remove (delete-matching-lines "^$").

* wl-mime.el (wl-define-dummy-functions): Split `eval-when-compile' form
 for avoid error; when `make compile-strict.

Add (eval-when-compile (require 'cl)).

Use `insert-buffer-substring' instead of `insert-buffer'.

Add (eval-when-compile (require 'static)).

* wl-util.el: Move (eval-when-compile (require 'static)).
* wl-dnd.el: Add (eval-when-compile (require 'static)).
* wl-message.el: Ditto.

* mmimap.el: Remove (require 'static).
* acap.el: Ditto.

Fix comment.

* Makefile (clean-elc): Remove *.elx for compile-strict.

* wl-mime.el (wl-message-delete-current-part): Use `insert-buffer-substring' instead of `insert-buffer'.
* wl-summary.el (wl-summary-switch-to-clone-buffer): Ditto.

Move ';;; Code:' comment.

* elmo-version.el (product-provide): Fix comment.

* test-wl-util.el (test-wl-unique-id-by-user): New testcase.
(test-wl-inverse-alist): Ditto.

Add (eval-when-compile (require 'cl)).

* slp.el: Add (eval-when-compile (require 'cl)).
* elmo-date.el: Ditto.
* elmo-pop3.el: Ditto.
* elmo-mime.el: Add (eval-when-compile (require 'elmo)).

Use `string-to-number' instead of `string-to-int'.

Updated recommended version of APEL and FLIM.

Use `string-to-number' instead of `string-to-int'.

* wl-util.el (wl-match-string, wl-match-buffer)
(wl-as-coding-system, wl-as-mime-charset, wl-concat-list)
(wl-kill-buffers, wl-local-variable-p)
(wl-line-formatter-setup): New backquote style.
(wl-count-lines): Use quote instead of backquote.

* wl-summary.el (wl-summary-buffer-folder-name)
(wl-summary-get-alike): Use quote instead of backquote.
(wl-summary-sticky-buffer-name, wl-summary-put-alike): New backquote style.

* wl-message.el (wl-message-buffer-cache-buffer-get)
(wl-message-buffer-cache-folder-get)
(wl-message-buffer-cache-message-get)
(wl-message-buffer-cache-entry-make)
(wl-message-buffer-cache-hit): New backquote style.

* wl-folder.el (wl-folder-buffer-group-p): Use quote instead of backquote.
(wl-folder-unread-regex, wl-folder-entity-exists-p)
(wl-folder-clear-entity-info)
(wl-folder-get-entity-info, wl-folder-set-entity-info)
(wl-folder-elmo-folder-cache-get)
(wl-folder-elmo-folder-cache-put): New backquote style.

* wl-fldmgr.el (wl-fldmgr-get-entity-id): New backquote style.
(wl-fldmgr-assign-id): Ditto.
(wl-fldmgr-delete-line): Use quote instead of backquote.
(wl-fldmgr-make-indent): Use `string-to-char' instead of `? '.

* wl-draft.el (wl-smtp-extension-bind, wl-draft-sent-message-p)
(wl-draft-set-sent-message): New backquote style.
(wl-draft-body-goto-top, wl-draft-body-goto-bottom)
(wl-draft-config-body-goto-header): Use quote instead of backquote.

* elmo-util.el (elmo-get-passwd): Fix typo.

* elmo-nntp.el (elmo-nntp-get-server-command)
(elmo-nntp-set-server-command, elmo-nntp-xover-p)
(elmo-nntp-listgroup-p, elmo-nntp-set-listgroup)
(elmo-nntp-list-active-p, elmo-nntp-set-list-active)
(elmo-nntp-xhdr-p, elmo-nntp-set-xhdr): New backquote style.

* elmo-imap4.el (elmo-imap4-debug)
(elmo-imap4-response-continue-req-p, elmo-imap4-response-ok-p)
(elmo-imap4-response-bye-p, elmo-imap4-response-garbage-p)
(elmo-imap4-response-value, elmo-imap4-response-error-text)
(elmo-imap4-response-bodydetail-text, elmo-imap4-value)
(elmo-imap4-nth, elmo-imap4-detect-search-charset)
(elmo-imap4-identical-system-p): New backquote style.

* wl-address.el (wl-address-concat-token): Fix typo.

* wl-score.el (wl-score-put-alike): Use quote instead of backquote.
(wl-score-get-alike): Ditto.

* wl-vars.el: New backquote style.
(wl-message-header-button-alist): Use quote instead of backquote.

* wl.el (wl-plugged-string): New backquote style.

* wl-address.el (wl-address-concat-token): New backquote style.

* wl-expire.el (wl-expire-make-sortable-date): New backquote style.

Use `string-to-number' instead of `string-to-int'.

* elmo-dop.el (elmo-make-dop-queue): New backquote style.
(elmo-dop-queue-fname, elmo-dop-queue-method): Ditto.
(elmo-dop-queue-arguments): Ditto.

* elmo-date.el (elmo-match-substring): New backquote style.
(elmo-match-string, elmo-match-buffer): Ditto.
(elmo-date-make-sortable-string): Ditto.

* elmo-archive.el (elmo-archive-get-method):New backquote style.
(elmo-archive-get-suffix, elmo-archive-get-regexp): Ditto.

* elmo-multi.el (elmo-multi-real-folder-number): New backquote style.

* elmo-net.el (elmo-network-stream-type-spec-string): New backquote style.
(elmo-network-stream-type-symbol): Ditto.
(elmo-network-stream-type-feature): Ditto.
(elmo-network-stream-type-function): Ditto.
(elmo-network-session-buffer): Ditto.

* elmo-util.el (elmo-file-cache-expand-path): New backquote style.
(elmo-file-cache-status, elmo-file-cache-path): Ditto.
(elmo-make-file-cache, elmo-string, elmo-get-passwd): Ditto.
(elmo-bind-directory, elmo-set-work-buf): Ditto.

* elmo.el (elmo-folder-send): New backquote style.

test-elmo-date.el: New file.

Use `string-to-number' instead of `string-to-int'.

Update.

* wl-highlight.el (wl-highlight-folder-opened-regexp)
(wl-highlight-folder-closed-regexp): Include the beginning of a line.

* wl-folder.el (wl-folder-group-regexp): Remove a redundant character in
the character alternative.

* pldap.el (ldap-static-if): New backquote style.
(ldap/ldif-safe-string-p): Ditto.
(ldap/ldif-insert-field): Ditto.

* wl-addrbook.el (wl-addrbook-hashtb): Use quote instead of backquote.
(wl-alias-next, wl-alias-get): New backquote style.

Version number is increased to 2.15.6.

New backquote style.

Revert to 1.267.

(wl-mime-pgp-decrypt-region-with-epg): Don't use
optional 3rd argument of epg-context-set-progress-callback; it was
temporarily removed in the Emacs trunk due to copyright problem.
(wl-mime-pgp-verify-region-with-epg): Ditto.

fix

* elmo-imap4.el (elmo-folder-list-messages-plugged): Don't include
messages with \Deleted flag.
(elmo-folder-delete-messages-plugged): Don't send expunge command
if there are messages with \Deleted flag.

* wl-demo.el (wl-demo-copyright-notice): Add 2008.

* wl-util.el (wl-biff-check-folders): Set biff flag.
(from Naoto Morishima [wl:14031])

Import from gnus-doc-ja:
2007-10-17  Katsumi Yamaoka  <yamaoka@jpl.org>

* ptexinfmt.el (texinfo-copying-text, texinfo-copying)
(texinfo-insertcopying, texinfo-format-scan): Move from infohack.el.

Update to version 2007-09-03.05 (Texinfo 4.11).

Cosmetic fix.

(texinfo-format-cedilla-accent): Quote `,'.

Import from gnus-doc-ja:
2007-09-03  Katsumi Yamaoka  <yamaoka@jpl.org>

* ptexinfmt.el (ptexinfmt-broken-facility, ptexinfmt-defun-if-broken)
(ptexinfmt-defun-if-void, ptexinfmt-defvar-if-void): Don't use
old-style backquotes.

Fix comment.

* wl.el (wl-plugged-server-indent): Use quote instead of backquote.

Revert last change.

* test-ptexinfmt.el (test-texinfo-format-special-char): New testcase.

Support @fonttextsize, @textdegree.

(wl-score-ov-entity-get): Call 'elmo-message-entity-field' with
TYPE artgument when TO or CC field.

(wl-score-ov-entity-get): Call 'elmo-message-entity-field' with TYPE artgument.

wl-score.el (wl-score-insert-header): Add guard for `std11-unfold-string'.

fix typo

* elmo-pop3.el (elmo-pop3-auth-apop): Use more strict regexp.
http://seclists.org/bugtraq/2007/Apr/0018.html
(Suggested by Tatsuya Kinoshita)

* elmo-imap4.el (elmo-folder-delete): Don't call close for mailbox
with \Noselect attribute.

IMAP STATUS command MUST NOT be used as a "check for new messages in the
selected mailbox" operation (RFC3501)

* elmo-imap4.el (elmo-folder-list-subfolders): Fix handling of
hierarchical folder structure with UW-imapd.

sample setting to call wl-summary-unvirtual as wl-summary-buffer-exit-function

(wl-summary-goto-folder-subr): Call
`elmo-folder-close' instead of `elmo-folder-commit' if discard
current summary.

* wl-util.el (wl-read-shell-commande): New function or alias.

* wl-summary.el (wl-summary-pipe-message): Use
`wl-read-shell-command' instead of `read-string'.
(wl-summary-target-mark-pipe): Ditto.

* wl-summary.el (wl-summary-reply): Fix docstring.
* wl-draft.el (wl-draft-reply): Ditto.

* elmo-imap4.el (elmo-imap4-clear-login): Don't send LOGIN command
when the LOGINDISABLED capability is advertised.

(wl-summary-extract-attachments): New command.
(wl-summary-extract-attachments-1): New internal function.

* elmo-msgdb.el (elmo-msgdb-extra-fields): Make it non-destructive.

Fix the custom group of some options.

(elmo-shimbun-update-overview): Add argnument
`entity'.
(elmo-map-message-fetch): Call `elmo-shimbun-update-overview' only
if the message entity is exists.