Some quines

+README.md

Quines in various languages

• C++
• Clojure
• Haskell
• Java
• JavaScript
• Ruby

C++.cpp

/* C++.cpp
 *
 * Copyright 2013 Dmitri Akatov (@akatov)
 *
 * $ g++ -o C++ C++.cpp && ./C++ | diff - C++.cpp
 */

#include <iostream>

using namespace std;

int main() {
  char e = 32;
  char q = 34;
  char c = 44;
  string s[] = {
    "/* C++.cpp",
    " *",
    " * Copyright 2013 Dmitri Akatov (@akatov)",
    " *",
    " * $ g++ -o C++ C++.cpp && ./C++ | diff - C++.cpp",
    " */",
    "",
    "#include <iostream>",
    "",
    "using namespace std;",
    "",
    "int main() {",
    "  char e = 32;",
    "  char q = 34;",
    "  char c = 44;",
    "  string s[] = {",
    "  };",
    "  for (int i = 0; i < 16; ++i) cout << s[i] << endl;",
    "  for (int i = 0; i < 23; ++i) {",
    "    cout << e << e << e << e << q << s[i] << q << c << endl;",
    "  }",
    "  for (int i = 16; i < 23; ++i) cout << s[i] << endl;",
    "}",
  };
  for (int i = 0; i < 16; ++i) cout << s[i] << endl;
  for (int i = 0; i < 23; ++i) {
    cout << e << e << e << e << q << s[i] << q << c << endl;
  }
  for (int i = 16; i < 23; ++i) cout << s[i] << endl;
}

Clojure.clj

#!/usr/bin/env clj

;; Clojure.clj
;;
;; Copyright 2013 Dmitri Akatov (@akatov)
;;
;; $ clj Clojure.clj | diff - Clojure.clj

(use 'clojure.pprint)

(pprint
 ((fn
   [x]
   (println "#!/usr/bin/env clj")
   (println)
   (println ";; Clojure.clj")
   (println ";;")
   (println ";; Copyright 2013 Dmitri Akatov (@akatov)")
   (println ";;")
   (println ";; $ clj Clojure.clj | diff - Clojure.clj")
   (println)
   (pprint '(use 'clojure.pprint))
   (println)
   (list 'pprint (list x (list 'quote x))))
  '(fn
    [x]
    (println "#!/usr/bin/env clj")
    (println)
    (println ";; Clojure.clj")
    (println ";;")
    (println ";; Copyright 2013 Dmitri Akatov (@akatov)")
    (println ";;")
    (println ";; $ clj Clojure.clj | diff - Clojure.clj")
    (println)
    (pprint '(use 'clojure.pprint))
    (println)
    (list 'pprint (list x (list 'quote x))))))

Haskell.hs

#!/usr/bin/env runhaskell

{- Haskell.hs
 -
 - Copyright 2013 Dmitri Akatov (@akatov)
 -
 - $ runhaskell Haskell.hs | diff - Haskell.hs
 -}

import Control.Applicative
import Data.List

main :: IO ()
main = putStrLn
     . (   (++)
       <*> ( (" [ " ++)
           . (++ "\n       ]")
           . intercalate "\n       , "
           . map show
           . lines
           )
       )
     . init
     . unlines
     $ [ "#!/usr/bin/env runhaskell"
       , ""
       , "{- Haskell.hs"
       , " -"
       , " - Copyright 2013 Dmitri Akatov (@akatov)"
       , " -"
       , " - $ runhaskell Haskell.hs | diff - Haskell.hs"
       , " -}"
       , ""
       , "import Control.Applicative"
       , "import Data.List"
       , ""
       , "main :: IO ()"
       , "main = putStrLn"
       , "     . (   (++)"
       , "       <*> ( (\" [ \" ++)"
       , "           . (++ \"\\n       ]\")"
       , "           . intercalate \"\\n       , \""
       , "           . map show"
       , "           . lines"
       , "           )"
       , "       )"
       , "     . init"
       , "     . unlines"
       , "     $"
       ]

Java.java

/* Java.java
 *
 * Copyright 2013 Dmitri Akatov (@akatov)
 *
 * $ javac Java.java && java Java | diff - Java.java
 */

class Java {
    public static void main(String[] a) {
        String o = "/* Java.java"
            + "\n *"
            + "\n * Copyright 2013 Dmitri Akatov (@akatov)"
            + "\n *"
            + "\n * $ javac Java.java && java Java | diff - Java.java"
            + "\n */"
            + "\n"
            + "\nclass Java {"
            + "\n    public static void main(String[] a) {"
            + "\n        String o = ;"
            + "\n        char q = 34;"
            + "\n        String m = o;"
            + "\n        m = m.replace(\"\\\\\", \"\\\\\\\\\");"
            + "\n        m = m.replace(\"\\\"\", \"\\\\\\\"\");"
            + "\n        m = m.replace(\"\\n\","
            + "\n                      \"\\\"\\n            + \\\"\\\\n\");"
            + "\n        System.out.println(o.substring(0, 193) + q + m + q"
            + "\n                           + o.substring(193));"
            + "\n    }"
            + "\n}";
        char q = 34;
        String m = o;
        m = m.replace("\\", "\\\\");
        m = m.replace("\"", "\\\"");
        m = m.replace("\n",
                      "\"\n            + \"\\n");
        System.out.println(o.substring(0, 193) + q + m + q
                           + o.substring(193));
    }
}

JavaScript.js

/* JavaScript.js
 *
 * Copyright 2013 Dmitri Akatov (@akatov)
 *
 * $ node JavaScript.js | diff - JavaScript.js
 */

(function f() {
    console.log('/* JavaScript.js');
    console.log(' *');
    console.log(' * Copyright 2013 Dmitri Akatov (@akatov)');
    console.log(' *');
    console.log(' * $ node JavaScript.js | diff - JavaScript.js');
    console.log(' */');
    console.log('');
    console.log('('+f+')();');
})();

Ruby.rb

#!/usr/bin/env ruby

# Ruby.rb
#
# Copyright 2013 Dmitri Akatov (@akatov)
#
# $ ruby Ruby.rb | diff - Ruby.rb

puts <<EOF*2,'EOF'
#!/usr/bin/env ruby

# Ruby.rb
#
# Copyright 2013 Dmitri Akatov (@akatov)
#
# $ ruby Ruby.rb | diff - Ruby.rb

puts <<EOF*2,'EOF'
EOF

{LICENSE}

Copyright (C) 2013 Dmitri Akatov (@akatov)

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.