Lord of the REPLs (Read Eval Print Loops) and CodePad

These days, I’m implementing interpreted language. My first interest is Clojure, my work is an implementation using C#, written from scratch, you can see the progress at:

http://code.google.com/p/ajlisp/source/browse#svn/trunk/AjSharpure

Last year I wrote a Lisp interpreter AjLisp- a Lisp interpreter in .NET, that I should improve, but past weeks, I started to write an Scheme-like language:

http://code.google.com/p/ajlisp/source/browse#svn/trunk/AjScheme

With so much activity on Lispy languages, I did research about many implementations. My discoveries were collected, as usual, in my delicious:

http://delicious.com/ajlopez/lisp
http://delicious.com/ajlopez/clojure
http://delicious.com/ajlopez/scheme

One of the gems I discovered, is this Google App Engine tool:

http://code.google.com/p/lotrepls/

LotREPLs is a multi-lingual read-eval-print-loop in your browser powered by Google App Engine and the Java runtime. It’s a technical demo, not something to do serious work with. The following languages are supported:

• BeanShell
• Clojure
• JavaScript
• Python
• Ruby
• Scala
• Scheme

You can try it a:

http://lotrepls.appspot.com/

You can enter your command, and see the result of evaluation, without installing nothing in your machine.

Another discovery, supporting C, C++, D, Haskell, Lua, Ocaml, PHP, Perl, Python, Ruby, Scheme, Tcl, is:

http://codepad.org/

codepad.org is an online compiler/interpreter, and a simple collaboration tool.
Paste your code below, and codepad will run it and give you a short URL you can use to share it in chat or email.

The code you enter and run, can be referenced by an URL, to share with other developers:

Some day, all our tools will be in the browser…

Angel “Java” Lopez
http://www.ajlopez.com
http://twitter.com/ajlopez