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Opal is a Ruby to JavaScript source-to-source compiler
Opal is a Ruby to JavaScript source-to-source compiler. It comes packed with the Ruby corelib you know and love. It is both fast as a runtime and small in its footprint. The lib directory holds the Opal parser/compiler used to compile Ruby into JavaScript. It is also built ready for the browser into opal-parser.js to allow compilation in any JavaScript environment. This directory holds the Opal runtime and corelib implemented in Ruby and JavaScript. opal-parser allows you to eval Ruby code...
Ruby On Flash is a compiler written in Java that compiles Ruby source code directly into Flash applications(.swf files), and aims to provide a programmer-friendly approach to casual Flash game development.
RubyScript2Exe transforms your Ruby script into a standalone
Windows or Linux executable. You can look at it as a
"compiler", for it collects all necessary files to run your
script on an other machine.