Install ob-racket', racket', and `sicp'

README.org

@@ -2152,6 +2152,7 @@ list detailing and motivating each listing:
      (perl . t)
      ;; Beware: Python activation must not call still unbound functions.
      (python . t)
+     (racket . ,(fboundp 'racket-mode))
      ;; MIT/GNU Scheme breaks Babel contrary to Guile, Chez and Chicken Scheme.
      (scheme . ,(fboundp 'geiser-mode))
      (shell . t))
@@ -5700,15 +5701,40 @@ configures =code-cells=.
 *** TODO Look into: editing facilities
 1. [[https://github.com/douglasdavis/numpydoc.el/blob/main/numpydoc.el][Emacs extension to insert numpy style docstrings in function definitions]]
 
+** [[https://racket-lang.org/][Racket Programming]]
+:PROPERTIES:
+:CUSTOM_ID: sec:racket-programming
+:header-args:emacs-lisp: :eval never-export
+:END:
+
+[[https://kchousos.github.io/posts/sicp-in-emacs/][SICP in Emacs]]
+
+#+begin_src emacs-lisp -n
+(when (ensure-package-installation 'racket-mode 'sicp)
+  (unless (package-installed-p 'ob-racket)
+    (package-vc-install
+     '(ob-racket :url "https://github.com/hasu/emacs-ob-racket.git"))))
+#+end_src
+
+#+begin_src racket :lang sicp
+"Hello, world!"
+#+end_src
+
+#+RESULTS:
+: "Hello, world!"
+
 ** [[https://en.wikibooks.org/wiki/Scheme_Programming][Scheme Programming]]
 :PROPERTIES:
 :CUSTOM_ID: sec:scheme-programming
+:header-args:emacs-lisp: :eval never-export
 :END:
 
-Listing [[lst:setup-geiser][Ensure Geiser installation]] supports the [[https://cisco.github.io/ChezScheme/][Chez Scheme]], [[https://call-cc.org/][Chicken Scheme]], and
-[[https://www.gnu.org/software/guile/][GNU Guile]] Scheme implementations and configures Geiser with [[https://cisco.github.io/ChezScheme/][Chez Scheme]] as
-default implementation.  Evaluate one of the following expressions to switch
-between those three implementations:
+Listing [[lst:setup-geiser][Ensure Geiser installation]] supports the Scheme implementations
+1. [[https://cisco.github.io/ChezScheme/][Chez Scheme]],
+2. [[https://call-cc.org/][Chicken Scheme]], and
+3. [[https://www.gnu.org/software/guile/][GNU Guile]] Scheme.
+It configures Geiser with [[https://cisco.github.io/ChezScheme/][Chez Scheme]] as default implementation.  Evaluate one
+of the following expressions to switch between those three implementations:
 1. src_emacs-lisp{(setopt scheme-default-implementation 'chicken)},
 2. src_emacs-lisp{(setopt scheme-default-implementation 'guile)},
 3. src_emacs-lisp{(setopt scheme-default-implementation 'chez)}.
@@ -5914,6 +5940,8 @@ contrary to for instance [[https://github.com/Fanael/rainbow-delimiters#readme][
                   lisp-data-mode-hook
                   lisp-mode-hook
                   python-mode-hook
+                  racket-mode-hook
+                  racket-repl-mode-hook
                   slime-repl-mode-hook
                   sly-mrepl-mode-hook))
     (add-hook hook #'smartparens-strict-mode))