-(defmacro nnheader-temp-write (file &rest forms)
- "Create a new buffer, evaluate FORMS there, and write the buffer to FILE.
-Return the value of FORMS.
-If FILE is nil, just evaluate FORMS and don't save anything.
-If FILE is t, return the buffer contents as a string."
- (let ((temp-file (make-symbol "temp-file"))
- (temp-buffer (make-symbol "temp-buffer"))
- (temp-results (make-symbol "temp-results")))
- `(save-excursion
- (let* ((,temp-file ,file)
- (default-major-mode 'fundamental-mode)
- (,temp-buffer
- (set-buffer
- (get-buffer-create
- (generate-new-buffer-name " *nnheader temp*"))))
- ,temp-results)
- (unwind-protect
- (progn
- (setq ,temp-results (progn ,@forms))
- (cond
- ;; Don't save anything.
- ((null ,temp-file)
- ,temp-results)
- ;; Return the buffer contents.
- ((eq ,temp-file t)
- (set-buffer ,temp-buffer)
- (buffer-string))
- ;; Save a file.
- (t
- (set-buffer ,temp-buffer)
- ;; Make sure the directory where this file is
- ;; to be saved exists.
- (when (not (file-directory-p
- (file-name-directory ,temp-file)))
- (make-directory (file-name-directory ,temp-file) t))
- ;; Save the file.
- (write-region (point-min) (point-max)
- ,temp-file nil 'nomesg)
- ,temp-results)))
- ;; Kill the buffer.
- (when (buffer-name ,temp-buffer)
- (kill-buffer ,temp-buffer)))))))
-
-(put 'nnheader-temp-write 'lisp-indent-function 1)
-(put 'nnheader-temp-write 'edebug-form-spec '(form body))
-