Adding Scheme to the list of fun

ha-programming-scheme.org

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+#+TITLE:  Programming in Scheme for SICP
+#+AUTHOR: Howard X. Abrams
+#+EMAIL:  howard.abrams@gmail.com
+#+DATE:   2022-03-01
+#+FILETAGS: :emacs:
+
+A literate programming file configuring Emacs.
+
+#+BEGIN_SRC emacs-lisp :exports none
+  ;;; ha-programming-scheme.el --- A literate programming file configuring Emacs. -*- lexical-binding: t; -*-
+  ;;
+  ;; Copyright (C) 2022 Howard X. Abrams
+  ;;
+  ;; Author: Howard X. Abrams <http://gitlab.com/howardabrams>
+  ;; Maintainer: Howard X. Abrams
+  ;; Created: March  1, 2022
+  ;;
+  ;; This file is not part of GNU Emacs.
+  ;;
+  ;; *NB:* Do not edit this file. Instead, edit the original literate file at:
+  ;;            /Users/howard.abrams/other/hamacs/ha-programming-scheme.org
+  ;;       And tangle the file to recreate this one.
+  ;;
+  ;;; Code:
+  #+END_SRC
+* Introduction
+First, install MIT-Scheme, the Lisp dialect used throughout the book:
+=brew install mit-scheme= or =sudo apt install mit-scheme= .
+#+BEGIN_SRC sh
+brew install mit-scheme
+#+END_SRC
+Ah, hell, we should install them all!
+#+BEGIN_SRC sh
+brew install guile racket chicken
+#+END_SRC
+* Install Scheme
+The [[https://www.nongnu.org/geiser/][geiser project]] attempts to be the interface between Emacs and various Schemes.
+
+#+BEGIN_SRC emacs-lisp
+  (use-package geiser
+    :init
+    (setq geiser-mit-binary "/usr/local/bin/scheme"
+          geiser-active-implementations '(mit))
+
+    :config
+    (use-package geiser-mit)   ; Choose favorite
+    (add-to-list 'org-babel-load-languages '(scheme . t)))
+#+END_SRC
+* Install SICP
+Let’s get the book available as an Info page:
+#+BEGIN_SRC emacs-lisp
+(use-package sicp)
+#+END_SRC
+* Try it Out
+#+BEGIN_SRC scheme :results value
+  (define (fib n)
+    (if (< n 2) 1
+        (+ (fib (- n 1)) (fib (- n 2)))))
+
+  (fib 5)
+#+END_SRC
+
+* Technical Artifacts                                :noexport:
+Looks like we need this, at least, temporarily.
+
+#+BEGIN_SRC emacs-lisp
+(add-to-list 'auto-mode-alist '("\\.info\\'" . Info-mode))
+#+END_SRC
+
+Let's =provide= a name so we can =require= this file:
+
+#+BEGIN_SRC emacs-lisp :exports none
+  (provide 'ha-programming-scheme)
+  ;;; ha-programming-scheme.el ends here
+  #+END_SRC
+
+#+DESCRIPTION: A literate programming file configuring Emacs.
+
+#+PROPERTY:    header-args:sh :tangle no
+#+PROPERTY:    header-args:emacs-lisp  :tangle yes
+#+PROPERTY:    header-args    :results none :eval no-export :comments no mkdirp yes
+
+#+OPTIONS:     num:nil toc:nil todo:nil tasks:nil tags:nil date:nil
+#+OPTIONS:     skip:nil author:nil email:nil creator:nil timestamp:nil
+#+INFOJS_OPT:  view:nil toc:nil ltoc:t mouse:underline buttons:0 path:http://orgmode.org/org-info.js