mu4e: improve mu4e-compose-dont-reply-to-self handling

Use mu4e-personal-or-alternative-address to decide on whether an address
belongs to "this user". Update docs.

mu4e/mu4e-compose.el

@@ -192,7 +192,11 @@ predicate function. A value of nil keeps all the addresses."
 
 (defcustom mu4e-compose-dont-reply-to-self nil
   "If non-nil, do not include self.
-Selfness is decided by `mu4e-personal-address-p'"
+
+Whether a given address belongs to this user (the \"self\") is
+determined by `mu4e-personal-or-alternative-address', which
+overrides `message-dont-reply-to-names' when replying to
+messages, if `mu4e-compose-dont-reply-to-self' is non-nil."
   :type 'boolean
   :group 'mu4e-compose)
 
@@ -635,22 +639,6 @@ This function uses `message-cite-function', and its settings apply."
     (goto-char (point-min))
     (buffer-string)))
 
-(defun mu4e--address-blacklist ()
-  "Get the list of addresses *not* to send mail to in wide-replies."
-  (let ((ignored mu4e-compose-reply-ignore-address)
-        (addrs (mu4e-personal-addresses))
-        (is-rx (lambda (addr) (string-match-p "^/.*/" addr))))
-    (when mu4e-compose-dont-reply-to-self
-      (setq ignored
-            (append ignored
-                    (list
-                     (regexp-opt
-                      (seq-filter (lambda (addr)
-                                    (not (funcall is-rx addr))) addrs))
-                     (seq-filter (lambda (addr)
-                                   (funcall is-rx addr)) addrs)))))
-    (flatten-list ignored)))
-
 (defvar mu4e-user-agent-string
   (format "mu4e %s; emacs %s" mu4e-mu-version emacs-version)
   "The User-Agent string for mu4e, or nil.")
@@ -796,7 +784,10 @@ of message."
   (mu4e--compose-setup
    'reply
    (lambda (parent)
-     (let ((message-dont-reply-to-names (mu4e--address-blacklist)))
+     (let ((message-dont-reply-to-names
+            (if mu4e-compose-dont-reply-to-self
+                message-dont-reply-to-names
+              #'mu4e-personal-or-alternative-address)))
        (message-reply nil wide)
        (insert (mu4e--compose-cite parent))))))
 

mu4e/mu4e-contacts.el

@@ -124,9 +124,10 @@ predicate function. A value of nil keeps all the addresses."
 
 ;;; user mail address
 (defun mu4e-personal-addresses (&optional no-regexp)
-  "Get the list user's personal addresses, as passed to mu init.
-The address are either plain e-mail address or /regular
- expressions/.  When NO-REGEXP is non-nil, do not include regexp
+  "Get the list user's personal addresses, as passed to \"mu init\".
+
+The address are either plain e-mail addresses or regexps (strings
+ wrapped / /). When NO-REGEXP is non-nil, do not include regexp
  address patterns (if any)."
   (seq-remove
    (lambda (addr) (and no-regexp (string-match-p "^/.*/" addr)))
@@ -152,15 +153,19 @@ with both the plain addresses and /regular expressions/."
   "Return a function matching user's addresses.
 Function takes one parameter, an address. This glues mu4e's
 personal addresses together with gnus'
-`message-alternative-emails'."
-  (let* ((alts  message-alternative-emails))
+`message-alternative-emails'.
+
+Note that this expanded definition of user-addresses is only for the
+message composition."
+  (let* ((alts message-alternative-emails))
     (lambda (addr)
       (or (mu4e-personal-address-p addr)
           (cond
            ((functionp alts) (funcall alts addr))
-           ((stringp alts)  (string-match alts addr))
+           ((stringp alts)   (string-match alts addr))
            (t nil))))))
 
+
 
 ;; Helpers