diff --git a/lisp/mh-e/mh-compat.el b/lisp/mh-e/mh-compat.el index 10a8b6e..21ff5cb 100644 --- a/lisp/mh-e/mh-compat.el +++ b/lisp/mh-e/mh-compat.el @@ -75,11 +75,24 @@ 'mh-cancel-timer 'cancel-timer 'delete-itimer)) -;; Emacs 24 renamed flet to cl-flet. -(defalias 'mh-cl-flet - (if (fboundp 'cl-flet) - 'cl-flet - 'flet)) +;; Emacs 24 made flet obsolete and suggested either cl-flet or +;; cl-letf. This macro is based upon gmm-flet from Gnus. +(defmacro mh-flet (bindings &rest body) + "Make temporary overriding function definitions. +This is an analogue of a dynamically scoped `let' that operates on +the function cell of FUNCs rather than their value cell. + +\(fn ((FUNC ARGLIST BODY...) ...) FORM...)" + (if (fboundp 'cl-letf) + `(cl-letf ,(mapcar (lambda (binding) + `((symbol-function ',(car binding)) + (lambda ,@(cdr binding)))) + bindings) + ,@body) + `(flet ,bindings ,@body))) +(put 'mh-flet 'lisp-indent-function 1) +(put 'mh-flet 'edebug-form-spec + '((&rest (sexp sexp &rest form)) &rest form)) (defun mh-display-color-cells (&optional display) "Return the number of color cells supported by DISPLAY. diff --git a/lisp/mh-e/mh-mime.el b/lisp/mh-e/mh-mime.el index df3a42e..b8d700d 100644 --- a/lisp/mh-e/mh-mime.el +++ b/lisp/mh-e/mh-mime.el @@ -268,7 +268,7 @@ mh-display-with-external-viewer (buffer-read-only nil)) (when (string-match "^[^% \t]+$" method) (setq method (concat method " %s"))) - (mh-cl-flet + (mh-flet ((mm-handle-set-external-undisplayer (handle function) (mh-handle-set-external-undisplayer folder handle function))) @@ -525,7 +525,7 @@ mh-mime-display (let ((handles ()) (folder mh-show-folder-buffer) (raw-message-data (buffer-string))) - (mh-cl-flet + (mh-flet ((mm-handle-set-external-undisplayer (handle function) (mh-handle-set-external-undisplayer folder handle function))) @@ -1049,7 +1049,7 @@ mh-press-button (function (get-text-property (point) 'mh-callback)) (buffer-read-only nil) (folder mh-show-folder-buffer)) - (mh-cl-flet + (mh-flet ((mm-handle-set-external-undisplayer (handle function) (mh-handle-set-external-undisplayer folder handle function))) @@ -1070,7 +1070,7 @@ mh-push-button (mm-inline-media-tests mh-mm-inline-media-tests) (data (get-text-property (point) 'mh-data)) (function (get-text-property (point) 'mh-callback))) - (mh-cl-flet + (mh-flet ((mm-handle-set-external-undisplayer (handle func) (mh-handle-set-external-undisplayer folder handle func))) @@ -1166,7 +1166,7 @@ mh-display-smileys (defun mh-display-emphasis () "Display graphical emphasis." (when (and mh-graphical-emphasis-flag (mh-small-show-buffer-p)) - (mh-cl-flet + (mh-flet ((article-goto-body ())) ; shadow this function to do nothing (save-excursion (goto-char (point-min)) diff --git a/lisp/mh-e/mh-show.el b/lisp/mh-e/mh-show.el index afe9812..26e8216 100644 --- a/lisp/mh-e/mh-show.el +++ b/lisp/mh-e/mh-show.el @@ -900,7 +900,7 @@ mh-gnus-article-highlight-citation (interactive) ;; Don't allow Gnus to create buttons while highlighting, maybe this is bad ;; style? - (mh-cl-flet + (mh-flet ((gnus-article-add-button (&rest args) nil)) (let* ((modified (buffer-modified-p)) (gnus-article-buffer (buffer-name)) diff --git a/lisp/mh-e/mh-thread.el b/lisp/mh-e/mh-thread.el index 5135e7e..e6acdba 100644 --- a/lisp/mh-e/mh-thread.el +++ b/lisp/mh-e/mh-thread.el @@ -647,7 +647,7 @@ mh-thread-generate (defun mh-thread-set-tables (folder) "Use the tables of FOLDER in current buffer." - (mh-cl-flet + (mh-flet ((mh-get-table (symbol) (with-current-buffer folder (symbol-value symbol))))