+2007-09-25 Teodor Zlatanov <tzz@lifelogs.com>
+
+ * gnus-registry.el (gnus-registry-store-extra-entry): Allow for nil
+ extras value, so an extras entry can be deleted.
+ (gnus-registry-delete-extra-entry): Use it.
+ (gnus-registry-fetch-extra-flags, gnus-registry-has-extra-flag)
+ (gnus-registry-store-extra-flags, gnus-registry-delete-extra-flags)
+ (gnus-registry-delete-all-extra-flags): Allow for arbitrary flag symbol
+ storage through the gnus-registry, and provide an appropriate API for
+ it.
+
2007-09-13 Katsumi Yamaoka <yamaoka@jpl.org>
* gnus-sum.el (gnus-newsgroup-maximum-articles): Move from gnus.el.
(string-match word x))
list)))))
+;;; if this extends to more than 'flags, it should be improved to be more generic.
+(defun gnus-registry-fetch-extra-flags (id)
+ "Get the flags of a message, based on the message ID.
+Returns a list of symbol flags or nil."
+ (car-safe (cdr (gnus-registry-fetch-extra id 'flags))))
+
+(defun gnus-registry-has-extra-flag (id flag)
+ "Checks if a message has `flag', based on the message ID."
+ (memq flag (gnus-registry-fetch-extra-flags id)))
+
+(defun gnus-registry-store-extra-flags (id &rest flag-list)
+ "Set the flags of a message, based on the message ID.
+The `flag-list' can be nil, in which case no flags are left."
+ (gnus-registry-store-extra-entry id 'flags (list flag-list)))
+
+(defun gnus-registry-delete-extra-flags (id &rest flag-delete-list)
+ "Delete the message flags in `flag-delete-list', based on the message ID."
+ (let ((flags (gnus-registry-fetch-extra-flags id)))
+ (when flags
+ (dolist (flag flag-delete-list)
+ (setq flags (delq flag flags))))
+ (gnus-registry-store-extra-flags id (car flags))))
+
+(defun gnus-registry-delete-all-extra-flags (id)
+ "Delete all the flags for a message ID."
+ (gnus-registry-store-extra-flags id nil))
+
(defun gnus-registry-fetch-extra (id &optional entry)
"Get the extra data of a message, based on the message ID.
Returns the first place where the trail finds a nonstring."
gnus-registry-hashtb)
(setq gnus-registry-dirty t)))))
+(defun gnus-registry-delete-extra-entry (id key)
+ "Delete a specific entry in the extras field of the registry entry for id."
+ (gnus-registry-store-extra-entry id key nil))
+
(defun gnus-registry-store-extra-entry (id key value)
"Put a specific entry in the extras field of the registry entry for id."
(let* ((extra (gnus-registry-fetch-extra id))
- (alist (gnus-registry-remove-alist-text-properties
- (cons (cons key value)
- (gnus-assq-delete-all key (gnus-registry-fetch-extra id))))))
+ ;; all the entries except the one for `key'
+ (the-rest (gnus-assq-delete-all key (gnus-registry-fetch-extra id)))
+ (alist (if value
+ (gnus-registry-remove-alist-text-properties
+ (cons (cons key value)
+ the-rest))
+ the-rest)))
(gnus-registry-store-extra id alist)))
(defun gnus-registry-fetch-group (id)