This is a Ruby program that generates Scala program that generates Scheme program that generates ...(through 50 languages)... REXX program that generates the original Ruby code again.
You are fortunate (almost) if you are using OS X Mountain Lion with Homebrew. A few packages needs to be installed manually (almost), here they're:
$ brew install https://raw.github.com/sogilis/homebrew/e2572424376650a466a0eb8e7ed171a06159edd4/Library/Formula/gnat.rb
$ brew tap ceykooo/homebrew-boo
$ HOMEBREW_CC=llvm brew install mono
$ git clone https://github.com/andreabolognani/cattle.git
$ cd cattle
$ mv autogen.sh autogen.sh.old && sed -e 's/libtoolize/glibtoolize/g' autogen.sh.old > autogen.sh && chmod +x autogen.sh
$ brew uninstall libxml2
$ brew install libxml2 --with-python gtk-doc gobject-introspection
$ ./autogen.sh
$ ./configure
$ make && make install
$ curl -o pandoc-1.11.1.dmg http://pandoc.googlecode.com/files/pandoc-1.11.1.dmg
$ hdiutil attach -mountpoint /Volumes/pandoc pandoc-1.11.1.dmg
$ sudo installer -pkg /Volumes/pandoc/pandoc-1.11.1.pkg -target /
$ hdiutil unmount "/Volumes/pandoc"
$ git clone https://github.com/andreabolognani/beef.git
$ cd beef
$ mv autogen.sh autogen.sh.old && sed -e 's/libtoolize/glibtoolize/g' autogen.sh.old > autogen.sh && chmod +x autogen.sh
$ ./autogen.sh
$ ./configure
$ make && make install
$ brew install node
$ npm install -g coffee-script
$ curl -o ucblogo.tar.gz http://www.cs.berkeley.edu/~bh/downloads/ucblogo.tar.gz
$ tar -zxf ucblogo.tar.gz && cd ucblogo-6.0
$ rm -rf csls/CVS
$ mv makefile.in makefile.in.old && sed -e 's/install: all/install:/g' makefile.in.old > makefile.in
$ ./configure --cache-file=/dev/null --without-x
$ make && make install
brew tap homebrew/science
curl -o fpc-2.6.2.intel-macosx.dmg http://fpc.planetmirror.com/pub/fpc/dist/2.6.2/i386-macosx/fpc-2.6.2.intel-macosx.dmg
hdiutil attach -mountpoint /Volumes/fpc fpc-2.6.2.intel-macosx.dmg
sudo installer -pkg /Volumes/fpc/fpc-2.6.2rc1.intel-macosx.pkg -target /
hdiutil unmount "/Volumes/fpc"
And after that you can install the rest via Homebrew:
$ brew install ruby scala gauche gnu-smalltalk vala icarus-verilog algol68g \
boo clojure open-cobol clisp gforth gfortran go ghc icon intercal octave \
jasmin llvm lua ocaml parrot pike swi-prolog python r regina-rexx
If you are not using OS X Mountain Lion, please find your way yourself. You may find instructions for Arch Linux and other platforms in the wiki.
$ ruby QR.rb > QR.scala
$ scalac QR.scala && scala QR > QR.scm
$ gosh QR.scm > QR.bash
$ bash QR.bash > QR.st
$ /usr/local/bin/gst QR.st > QR.tcl
$ tclsh QR.tcl > QR.unl
$ ruby unlambda.rb QR.unl > QR.vala
$ valac QR.vala && ./QR > QR.v
$ iverilog -o QR QR.v && ./QR -vcd-none > QR.ws
$ ruby whitespace.rb QR.ws > qr.adb
$ gnatmake qr.adb && ./qr > QR.a68
$ a68g QR.a68 > QR.awk
$ awk -f QR.awk > QR.boo
$ booi QR.boo > QR.bf
$ beef QR.bf > QR.c
$ gcc -o QR QR.c && ./QR > QR.cpp
$ g++ -o QR QR.cpp && ./QR > QR.cs
$ mcs QR.cs && mono QR.exe > QR.clj
$ clj QR.clj > QR.cob
$ cobc -x QR.cob && ./QR > QR.coffee
$ /usr/local/share/npm/bin/coffee QR.coffee > QR.lisp
$ clisp QR.lisp > QR.fs
$ gforth QR.fs > QR.f
$ gfortran -o QR QR.f && ./QR > QR.f90
$ gfortran -o QR QR.f90 && ./QR > QR.go
$ go run QR.go > QR.groovy
$ groovy QR.groovy > QR.hs
$ runghc QR.hs > QR.icn
$ icont -s QR.icn && ./QR > QR.i
$ ick -b QR.i && ./QR > QR.j
$ jasmin QR.j && java QR > QR.java
$ javac QR.java && java QR > QR.ll
$ llvm-as QR.ll && lli QR.bc > QR.logo
$ logo QR.logo > QR.lua
$ lua QR.lua > QR.makefile
$ make -f QR.makefile > QR.il
$ ilasm QR.il && mono QR.exe > QR.js
$ node QR.js > QR.m
$ gcc -o QR QR.m && ./QR > QR.ml
$ ocaml QR.ml > QR.octave
$ octave -qf QR.octave > QR.pasm
$ parrot QR.pasm > QR.pas
$ fpc QR.pas && ./QR > QR.pl
$ perl QR.pl > QR.php
$ php QR.php > QR.pike
$ pike QR.pike > QR.prolog
$ swipl -q -t qr -f QR.prolog > QR.py
$ python QR.py > QR.R
$ R --slave < QR.R > QR.rexx
$ rexx ./QR.rexx > QR2.rb
You will see that QR.rb is the same as QR2.rb.
$ diff QR.rb QR2.rb
Alternatively, just type make.
$ make
Note: It may require huge memory to compile some files.
As I said above, I adapted the program for Mountain Lion and Homebrew.
| language | ubuntu package | version |
|---|---|---|
| Ruby | ruby | 2.0.0-p247 |
| Scala | scala | 2.10.2 |
| Scheme | gauche | 0.9.3.3 |
| Shell | - | 3.2 |
| Smalltalk | gnu-smalltalk | 3.2.5 |
| Tcl | - | 8.5 |
| Unlambda | (none) | - |
| Vala | valac | 0.18.1-0ubuntu4 |
| Verilog | iverilog | 0.9.6-1 |
| Whitespace | (none) | - |
| Ada | gnat | 4.6ubuntu1 |
| ALGOL68 | algol68g | 2.4.1-1 |
| Awk | gawk | 1:4.0.1+dfsg-2ubuntu1 |
| Boo | boo | 0.9.5~git20110729.r1.202a430-2 |
| Brainfuck | beef | 0.0.6-2 |
| C | gcc | 4:4.7.3-1ubuntu10 |
| C++ | g++ | 4:4.7.3-1ubuntu10 |
| C# | mono-mcs | 2.10.8.1-5ubuntu1 |
| Clojure | clojure1.4 | 1.4.0+dfsg-2ubuntu2 |
| Cobol | open-cobol | 1.1-1 |
| CoffeeScript | coffeescript | 1.4.0-1 |
| CommonLisp | clisp | 1:2.49-8.1ubuntu1 |
| Forth | gforth | 0.7.0+ds2-0.1 |
| FORTRAN77 | f2c | 20100827-1 |
| Fortran90 | gfortran | 4:4.7.3-1ubuntu10 |
| Go | golang | 2:1.0.2-2 |
| Groovy | groovy | 2.0.0~beta2+isreally1.8.6-0ubuntu1 |
| Haskell | ghc | 7.6.2-1ubuntu1 |
| Icon | icont | 9.4.3-4 |
| INTERCAL | intercal | 29:0.29-2 |
| Jasmin | jasmin-sable | 2.4.0-1ubuntu1 |
| Java | openjdk-6-jdk | 6b27-1.12.5-1ubuntu1 |
| LLVM asm | llvm | 1:3.2-16~exp1 |
| Logo | ucblogo | 5.5-2.1 |
| Lua | lua5.2 | 5.2.1-3 |
| Makefile | make | 3.81-8.2ubuntu2 |
| MSIL | mono-devel | 2.10.8.1-5ubuntu1 |
| NodeJS | nodejs | 0.6.19~dfsg1-5ubuntu1 |
| Objective-C | gobjc | 4:4.7.3-1ubuntu10 |
| OCaml | ocaml | 3.12.1-2ubuntu3 |
| Octave | octave | 3.6.4-1 |
| Parrot asm | parrot | 4.6.0-1 |
| Pascal | fp-compiler | 2.6.0-9 |
| Perl | perl | 5.14.2-21 |
| PHP | php5-cli | 5.4.9-4ubuntu2.2 |
| Pike | pike7.8 | 7.8.352-dfsg-7ubuntu1 |
| Prolog | swi-prolog | 5.10.4-5ubuntu1 |
| Python | python | 2.7.4-0ubuntu1 |
| R | r-base | 2.15.2-1ubuntu1 |
| REXX | regina-rexx | 3.6-2 |
$ cd src
$ rake
Copyright (c) 2013 Yusuke Endoh (@mametter), @hirekoke
MIT License
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.