+#+BEGIN_SRC emacs-lisp :tangle yes :results silent
+
+ ;; (defhydra sd/search-highlight (:color red :columns nil)
+ ;; "search"
+ ;; ("M-s" . isearch-forward-regexp "search-forward" :exit t)
+ ;; ("s" . isearch-forward-regexp "search-forward" :exit t)
+ ;; ("r" . isearch-backward-regexp "search-backward" :exit t)
+ ;; )
+
+ ;; (setq-default indicate-empty-lines t)
+#+END_SRC
+
+* test
+#+BEGIN_SRC ditaa :file temp/hello-world.png :cmdline -r
++--------------+
+| |
+| Hello World! |
+| |
++--------------+
+#+END_SRC
+
+#+RESULTS:
+[[file:temp/hello-world.png]]
+
+
+* =C-u C-h a= search funtions
+=apropos-command=