install scheme reorg

[lambda.git] / how_to_get_the_programming_languages_running_on_your_computer.mdwn

diff --git a/how_to_get_the_programming_languages_running_on_your_computer.mdwn b/how_to_get_the_programming_languages_running_on_your_computer.mdwn
index 8a6f5d8..add8e27 100644 (file)
--- a/how_to_get_the_programming_languages_running_on_your_computer.mdwn
+++ b/how_to_get_the_programming_languages_running_on_your_computer.mdwn
@@ -106,6 +106,11 @@ easier and more straightforward for others.
 of programming languages. The other dialects are called "Common Lisp" and "Clojure".
 Scheme is the more clean and minimalist dialect, and is what's mostly used in
 academic circles.
+
+*   In your web browser:
+
+    There is a (slow, bare-bones) version of Scheme available for online use at <http://tryscheme.sourceforge.net/>.
+
 Scheme itself has umpteen different "implementations", which share most of
 their fundamentals, but have slightly different extensions and interact with
 the operating system differently. One major implementation is called Racket,
@@ -128,10 +133,6 @@ Racket has several components. The two most visible components for us are a comm
 
 The current version of Racket is 6.1.1 (released November 2014).
 
-*   In your web browser:
-
-    There is a (slow, bare-bones) version of Scheme available for online use at <http://tryscheme.sourceforge.net/>.
-
 *   **To install in Windows**
 
     Go to <http://racket-lang.org/download/>. Download and install the "Windows x64" version. (Or the "Windows x86" verson if you have an older, 32-bit system.)
@@ -150,14 +151,21 @@ The current version of Racket is 6.1.1 (released November 2014).
 
          sudo port install mzscheme
 
+    <!-- mzscheme v4.1.5, from March 2009; latest mzscheme is 4.2.5, from April 2010 -->
+
     If you want the GUI components, I think you'll need to use the
-    "Mac/without MacPorts" installation options above.
+    "Mac/without MacPorts" installation options above. Or you could try the Chicken Scheme implementation instead of Racket. This is more current.
+    To do that, type:
+
+        sudo port install chicken readline
+
+    <!-- chicken v4.8.0.2, from Feb 2013; latest available is 4.9.0.1, from Nov 2014 -->
 
-    I recommend also typing:
+    Whether you use mzscheme or Chicken, I recommend also typing:
 
         sudo port install rlwrap
 
-    then if you ever use the command-line program `mzscheme` (or `racket`), you should start it by typing `rlwrap mzscheme`. This gives
+    then if you ever use the command-line program `mzscheme` (or `racket`, for that matter), you should start it by typing `rlwrap mzscheme` (or whatever). This gives
     you a nice history of the commands you've already typed, which you can scroll up and down in with your
     keyboard arrows.
 
@@ -177,7 +185,7 @@ The current version of Racket is 6.1.1 (released November 2014).
 
         sudo apt-get rlwrap
 
-    then if you ever use the command-line program `mzscheme` (or `racket`), you should start it by typing `rlwrap mzscheme`. This gives
+    then if you ever use the command-line program `mzscheme` (or `racket`), you should start it by typing `rlwrap mzscheme` (or whatever). This gives
     you a nice history of the commands you've already typed, which you can scroll up and down in with your
     keyboard arrows.