emacs: Use 'and' instead of 'when' when the return value matters

[notmuch] / emacs / notmuch-draft.el

diff --git a/emacs/notmuch-draft.el b/emacs/notmuch-draft.el
index e22e0d1638b7b206fe4bd08470ec5e04a707b7f7..759e6c9e47a00d539c31219c6f3f0e007920cd20 100644 (file)
--- a/emacs/notmuch-draft.el
+++ b/emacs/notmuch-draft.el
@@ -76,7 +76,7 @@ postponing and resuming a message."
 
 (defcustom notmuch-draft-save-plaintext 'ask
   "Should notmuch save/postpone in plaintext messages that seem
-  like they are intended to be sent encrypted
+like they are intended to be sent encrypted
 (i.e with an mml encryption tag in it)."
   :type '(radio
          (const :tag "Never" nil)
@@ -87,10 +87,10 @@ postponing and resuming a message."
 
 (defvar notmuch-draft-encryption-tag-regex
   "<#\\(part encrypt\\|secure.*mode=.*encrypt>\\)"
-  "Regular expression matching mml tags indicating encryption of part or message")
+  "Regular expression matching mml tags indicating encryption of part or message.")
 
 (defvar notmuch-draft-id nil
-  "Message-id of the most recent saved draft of this message")
+  "Message-id of the most recent saved draft of this message.")
 (make-variable-buffer-local 'notmuch-draft-id)
 
 (defun notmuch-draft--mark-deleted ()
@@ -152,16 +152,18 @@ Used when a new version is saved, or the message is sent."
   "Checks if we should save a message that should be encrypted.
 
 `notmuch-draft-save-plaintext' controls the behaviour."
-  (case notmuch-draft-save-plaintext
-       ((ask)
-        (unless (yes-or-no-p "(Customize `notmuch-draft-save-plaintext' to avoid this warning)
+  (cl-case notmuch-draft-save-plaintext
+    ((ask)
+     (unless (yes-or-no-p
+             "(Customize `notmuch-draft-save-plaintext' to avoid this warning)
 This message contains mml tags that suggest it is intended to be encrypted.
 Really save and index an unencrypted copy? ")
-          (error "Save aborted")))
-       ((nil)
-        (error "Refusing to save draft with encryption tags (see `notmuch-draft-save-plaintext')"))
-       ((t)
-        (ignore))))
+       (error "Save aborted")))
+    ((nil)
+     (error "Refusing to save draft with encryption tags (see `%s')"
+           'notmuch-draft-save-plaintext))
+    ((t)
+     (ignore))))
 
 (defun notmuch-draft--make-message-id ()
   ;; message-make-message-id gives the id inside a "<" ">" pair,
@@ -192,14 +194,16 @@ applied to newly inserted messages)."
        (message-remove-header "Message-ID")
        (message-add-header (concat "Message-ID: <" id ">")))
       (t
-       (message "You have customized emacs so Message-ID is not a deletable header, so not changing it")
+       (message "You have customized emacs so Message-ID is not a %s"
+               "deletable header, so not changing it")
        (setq id nil)))
      (cond
       ((member 'Date message-deletable-headers)
        (message-remove-header "Date")
        (message-add-header (concat "Date: " (message-make-date))))
       (t
-       (message "You have customized emacs so Date is not a deletable header, so not changing it")))
+       (message "You have customized emacs so Date is not a deletable %s"
+               "header, so not changing it")))
      (message-add-header "X-Notmuch-Emacs-Draft: True")
      (notmuch-draft-quote-some-mml)
      (notmuch-maildir-setup-message-for-saving)
@@ -259,7 +263,7 @@ applied to newly inserted messages)."
       ;; If the resumed message was a draft then set the draft
       ;; message-id so that we can delete the current saved draft if the
       ;; message is resaved or sent.
-      (setq notmuch-draft-id (when draft id)))))
+      (setq notmuch-draft-id (and draft id)))))
 
 
 (add-hook 'message-send-hook 'notmuch-draft--mark-deleted)