This is a Ruby program that generates Rust program that generates Scala program that generates ...(through 128 languages in total)... REXX program that generates the original Ruby code again.
(If you want to see the old 50-language version, see 50 branch.)
If you are using Ubuntu 19.04 (Disco Dingo), you can perform the following steps.
First, you have to type the following apt-get command to install all of them.
$ sudo apt-get install afnix algol68g aplus-fsf aspectc++ aspectj \
asymptote ats2-lang bash bc bf bison bsdgames bsh clisp clojure cmake \
cmake coffeescript dafny dc ecere-dev elixir emacs25 erlang f2c fish \
flex fp-compiler fsharp g++ gambas3-script gap gawk gcc gdb gdc \
generator-scripting-language genius gforth gfortran ghc ghostscript \
gnat gnu-smalltalk gnucobol gnuplot gobjc golang gri groff groovy \
guile-2.0 gzip haxe icont iconx intercal iverilog jasmin-sable jq \
julia ksh libgd-dev libpng-dev lisaac livescript llvm lua5.3 m4 make \
maxima minizinc mlton mono-devel mono-mcs mono-vbnc nasm neko nickle \
nim node-typescript nodejs ocaml octave openjdk-13-jdk pakcs pari-gp \
parser3-cgi perl php-cli pike8.0 python r-base rakudo ratfor rc \
regina-rexx ruby ruby-mustache rustc scala sed slsh spin squirrel3 \
swi-prolog tcl tcsh valac vim xsltproc yabasic yorick zoem zsh
Then, build the bundled interpreters.
$ sudo apt-get install libpng-dev libgd-dev groff flex bison
$ make -C vendor
$ ulimit -s unlimited
$ ruby QR.rb > QR.rs
$ rustc QR.rs && ./QR > QR.scala
$ scalac QR.scala && scala QR > QR.scm
$ guile QR.scm > QR.sed
$ sed -E -f QR.sed QR.sed > QR.spl
$ ./vendor/local/bin/spl2c < QR.spl > QR.spl.c && gcc -o QR -I ./vendor/local/include -L ./vendor/local/lib QR.spl.c -lspl -lm &&
./QR > QR.sls
$ slsh QR.sls > QR.st
$ gst QR.st > QR.nut
$ squirrel QR.nut > QR.sml
$ mlton @MLton fixed-heap 200M -- QR.sml && ./QR > QR.sq
$ ruby vendor/subleq.rb QR.sq > QR.tcl
$ tclsh QR.tcl > QR.tcsh
$ tcsh QR.tcsh > QR.t
$ ruby vendor/thue.rb QR.t > QR.ts
$ tsc --outFile QR.ts.js QR.ts && nodejs QR.ts.js > QR.unl
$ ruby vendor/unlambda.rb QR.unl > QR.vala
$ valac QR.vala && ./QR > QR.mid
$ mono vendor/local/bin/Vlt.exe /s QR.mid && mono QR.exe > QR.v
$ iverilog -o QR QR.v && ./QR -vcd-none > QR.vim
$ vim -EsS QR.vim > QR.vb
$ vbnc QR.vb && mono ./QR.exe > QR.ws
$ ruby vendor/whitespace.rb QR.ws > QR.xslt
$ xsltproc QR.xslt > QR.yab
$ yabasic QR.yab > QR.yorick
$ yorick -batch QR.yorick > QR.azm
$ zoem -i QR.azm > QR.zsh
$ zsh QR.zsh > QR.+
$ a+ QR.+ > qr.adb
$ gnatmake qr.adb && ./qr > QR.als
$ LD_LIBRARY_PATH=/usr/lib/afnix axi QR.als > QR.aheui
$ go run vendor/goaheui/main.go QR.aheui > QR.a68
$ a68g QR.a68 > QR.ante
$ ruby vendor/ante.rb QR.ante > QR.cc
$ ag++ -o QR QR.cc && ./QR > QR.aj
$ JAVACMD=/usr/lib/jvm/java-13-openjdk-amd64/bin/java ajc QR.aj &&
java QR > QR.asy
$ asy QR.asy > QR.dats
$ patscc -o QR QR.dats && ./QR > QR.awk
$ awk -f QR.awk > QR.bash
$ bash QR.bash > QR.bc
$ BC_LINE_LENGTH=4000000 bc -q QR.bc > QR.bsh
$ bsh QR.bsh > QR.bef
$ cfunge QR.bef > QR.Blc
$ ruby vendor/blc.rb < QR.Blc > QR.bf
$ bf -c500000 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.chef
$ PERL5LIB=vendor/local/lib/perl5 compilechef QR.chef QR.chef.pl &&
perl QR.chef.pl > QR.clj
$ clojure QR.clj > QR.cmake
$ cmake -P QR.cmake > QR.cob
$ cobc -O2 -x QR.cob && ./QR > QR.coffee
$ coffee --nodejs --stack_size=100000 QR.coffee > QR.lisp
$ clisp QR.lisp > QR.curry
$ pakcs --nocypm :load QR.curry :save :quit && ./QR > QR.d
$ gdc -o QR QR.d && ./QR > QR.dfy
$ dafny QR.dfy && mono QR.exe > QR.dc
$ dc QR.dc > QR.ec || true
$ ecp -c QR.ec -o QR.sym && ecc -c QR.ec -o QR.c && ecs -console QR.sym QR.imp -o QR.main.ec &&
ecp -c QR.main.ec -o QR.main.sym && ecc -c QR.main.ec -o QR.main.c &&
gcc -o QR QR.c QR.main.c -lecereCOM && ./QR > QR.exs
$ elixir QR.exs > QR.el
$ emacs -Q --script QR.el > QR.erl
$ escript QR.erl > QR.fsx
$ fsharpc QR.fsx -o QR.exe && mono QR.exe > QR.false
$ ruby vendor/false.rb QR.false > QR.fl
$ flex -o QR.fl.c QR.fl && gcc -o QR QR.fl.c && ./QR > QR.fish
$ fish QR.fish > QR.fs
$ gforth QR.fs > QR.f
$ gfortran -o QR QR.f && ./QR > QR.f90
$ gfortran -o QR QR.f90 && ./QR > QR.gbs
$ gbs3 QR.gbs > QR.g
$ gap -q QR.g > QR.gdb
$ gdb -q -x QR.gdb > QR.gel
$ genius QR.gel > QR.gsl
$ gsl -q QR.gsl > QR.plt
$ gnuplot QR.plt > QR.go
$ go run QR.go > QR.gs
$ ruby vendor/golfscript.rb QR.gs > QR.grass
$ ruby vendor/grass.rb QR.grass > QR.gri
$ gri QR.gri > QR.groovy
$ groovy QR.groovy > QR.gz
$ gzip -cd QR.gz > QR.hs
$ ghc QR.hs && ./QR > QR.hx
$ haxe -main QR -neko QR.n && neko QR.n > QR.icn
$ icont -s QR.icn && ./QR > QR.i
$ ick -bfOc QR.i && gcc -static QR.c -I /usr/include/ick-* -o QR -lick &&
./QR > QR.j
$ jasmin QR.j && java QR > QR.java
$ javac QR.java && java QR > QR.js
$ nodejs QR.js > QR.jq
$ jq -r -n -f QR.jq > QR.jsfuck
$ nodejs --stack_size=100000 QR.jsfuck > QR.ksh
$ ksh QR.ksh > QR.lazy
$ lazyk QR.lazy > qr.li
$ lisaac qr.li && ./qr > QR.jl
$ julia QR.jl > QR.ls
$ lsc QR.ls > QR.ll
$ llvm-as QR.ll && lli QR.bc > QR.lol
$ lci QR.lol > QR.lua
$ lua5.3 QR.lua > QR.m4
$ m4 QR.m4 > QR.mk
$ make -f QR.mk > QR.mac
$ maxima -q --init-mac=QR.mac > QR.mzn
$ mzn2fzn QR.mzn && fzn-gecode QR.fzn | solns2out --soln-sep '' QR.ozn > QR.il
$ ilasm QR.il && mono QR.exe > QR.mustache
$ mustache QR.mustache QR.mustache > QR.asm
$ nasm -felf QR.asm && ld -m elf_i386 -o QR QR.o && ./QR > QR.neko
$ nekoc QR.neko && neko QR.n > QR.5c
$ nickle QR.5c > QR.nim
$ nim c QR.nim && ./QR > QR.m
$ gcc -o QR QR.m && ./QR > QR.ml
$ ocaml QR.ml > QR.octave
$ mv QR.m QR.m.bak && octave -qf QR.octave > QR.ook && mv QR.m.bak QR.m
$ ruby vendor/ook-to-bf.rb QR.ook QR.ook.bf && bf -c500000 QR.ook.bf > QR.gp
$ gp -f -q QR.gp > QR.p
$ parser3 QR.p > QR.pas
$ fpc QR.pas && ./QR > QR.pl
$ perl QR.pl > QR.pl6
$ perl6 QR.pl6 > QR.php
$ php QR.php > QR.png
$ npiet QR.png > QR.pike
$ pike QR.pike > QR.ps
$ gs -dNODISPLAY -q QR.ps > QR.ppt
$ ppt -d < QR.ppt > QR.prolog
$ swipl -q -t qr -f QR.prolog > QR.pr
$ spin -T QR.pr > QR.py
$ python QR.py > QR.R
$ R --slave -f QR.R > QR.ratfor
$ ratfor -o QR.ratfor.f QR.ratfor && gfortran -o QR QR.ratfor.f &&
./QR > QR.rc
$ rc QR.rc > 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.
You may find instructions for other platforms in the wiki.
If you are not using these Linux distributions, please find your way yourself. If you could do it, please let me know. Good luck.
I used the following Ubuntu deb packages to test this program.
| # | language | ubuntu package | version |
|---|---|---|---|
| 1 | Ruby | ruby | 1:2.5.1 |
| 2 | Rust | rustc | 1.35.0+dfsg0.1+llvm-0ubuntu1~19.04.1 |
| 3 | Scala | scala | 2.11.12-4 |
| 4 | Scheme | guile-2.0 | 2.0.13+1-5ubuntu4 |
| 5 | sed | sed | 4.7-1 |
| 6 | Shakespeare | N/A | - |
| 7 | S-Lang | slsh | 2.3.2-1ubuntu1 |
| 8 | Smalltalk | gnu-smalltalk | 3.2.5-1.2build1 |
| 9 | Squirrel | squirrel3 | 3.1-5 |
| 10 | Standard ML | mlton | 20130715-3 |
| 11 | Subleq | N/A | - |
| 12 | Tcl | tcl | 8.6.9+1 |
| 13 | tcsh | tcsh | 6.20.00-7build1 |
| 14 | Thue | N/A | - |
| 15 | TypeScript | node-typescript | 3.3.3333-1 |
| 16 | Unlambda | N/A | - |
| 17 | Vala | valac | 0.44.3-1 |
| 18 | Velato | N/A | - |
| 19 | Verilog | iverilog | 10.2-1.1build1 |
| 20 | Vimscript | vim | 2:8.1.0320-1ubuntu3.1 |
| 21 | Visual Basic | mono-vbnc | 4.0.1-2 |
| 22 | Whitespace | N/A | - |
| 23 | XSLT | xsltproc | 1.1.32-2ubuntu0.1 |
| 24 | Yabasic | yabasic | 1:2.82.1-1 |
| 25 | Yorick | yorick | 2.2.04+dfsg1-10 |
| 26 | Zoem | zoem | 11-166-1.2 |
| 27 | zsh | zsh | 5.5.1-1ubuntu3 |
| 28 | A+ | aplus-fsf | 4.22.1-10 |
| 29 | Ada | gnat | 8.0.1ubuntu1 |
| 30 | AFNIX | afnix | 2.8.1-2 |
| 31 | Aheui | N/A | - |
| 32 | ALGOL 68 | algol68g | 2.8.4-1 |
| 33 | Ante | N/A | - |
| 34 | AspectC++ | aspectc++ | 1:2.2+git20181008-2 |
| 35 | AspectJ | aspectj | 1.9.2-1 |
| 36 | Asymptote | asymptote | 2.47-2 |
| 37 | ATS | ats2-lang | 0.3.11-2 |
| 38 | Awk | gawk | 1:4.2.1+dfsg-1build1 |
| 39 | bash | bash | 5.0-3ubuntu1.1 |
| 40 | bc | bc | 1.07.1-2build1 |
| 41 | BeanShell | bsh | 2.0b4-19 |
| 42 | Befunge | N/A | - |
| 43 | BLC8 | N/A | - |
| 44 | Brainfuck | bf | 20041219ubuntu6 |
| 45 | C | gcc | 4:8.3.0-1ubuntu3 |
| 46 | C++ | g++ | 4:8.3.0-1ubuntu3 |
| 47 | C# | mono-mcs | 5.18.0.240+dfsg-2ubuntu2 |
| 48 | Chef | N/A | - |
| 49 | Clojure | clojure | 1.10.0-1 |
| 50 | CMake | cmake | 3.13.4-1 |
| 51 | Cobol | gnucobol | 2.2-5 |
| 52 | CoffeeScript | coffeescript | 1.12.8~dfsg-4build1 |
| 53 | Common Lisp | clisp | 1:2.49.20180218+really2.49.92-3build2 |
| 54 | Curry | pakcs | 2.1.0-1 |
| 55 | D | gdc | 4:8.3.0-1ubuntu3 |
| 56 | Dafny | dafny | 1.9.7-1 |
| 57 | dc | dc | 1.07.1-2build1 |
| 58 | eC | ecere-dev | 0.44.15-1build1 |
| 59 | Elixir | elixir | 1.7.4-0.1 |
| 60 | Emacs Lisp | emacs25 | 1:26.1+1-3.2ubuntu2 |
| 61 | Erlang | erlang | 1:21.2.6+dfsg-1 |
| 62 | F# | fsharp | 4.0.0.4+dfsg2-2 |
| 63 | FALSE | N/A | - |
| 64 | Flex | flex | 2.6.4-6.2 |
| 65 | Fish | fish | 3.0.2-1 |
| 66 | Forth | gforth | 0.7.3+dfsg-9 |
| 67 | FORTRAN77 | f2c | 20160102-1 |
| 68 | Fortran90 | gfortran | 4:8.3.0-1ubuntu3 |
| 69 | Gambas script | gambas3-script | 3.12.2-1ubuntu1 |
| 70 | GAP | gap | 4r10p0-7 |
| 71 | GDB | gdb | 8.2.91.20190405-0ubuntu3 |
| 72 | GEL (Genius) | genius | 1.0.24-2build1 |
| 73 | GeneratorScriptingLanguage | generator-scripting-language | 4.1.5-3 |
| 74 | Gnuplot | gnuplot | 5.2.6+dfsg1-1 |
| 75 | Go | golang | 2:1.10~4ubuntu1 |
| 76 | GolfScript | N/A | - |
| 77 | Grass | N/A | - |
| 78 | Gri | gri | 2.12.26-1build2 |
| 79 | Groovy | groovy | 2.4.16-2ubuntu1 |
| 80 | Gzip | gzip | 1.9-3 |
| 81 | Haskell | ghc | 8.4.4+dfsg1-2 |
| 82 | Haxe | haxe | 1:3.4.7-1 |
| 83 | Icon | icont, iconx | 9.4.3-7ubuntu1 |
| 84 | INTERCAL | intercal | 30:0.30-2 |
| 85 | Jasmin | jasmin-sable | 2.5.0-2 |
| 86 | Java | openjdk-13-jdk | 13~13-0ubunt1 |
| 87 | JavaScript | nodejs | 10.15.2~dfsg-1 |
| 88 | Jq | jq | 1.5+dfsg-2build1 |
| 89 | JSFuck | nodejs | 10.15.2~dfsg-1 |
| 90 | ksh | ksh | 93u+20120801-3.1ubuntu1 |
| 91 | Lazy K | N/A | - |
| 92 | Lisaac | lisaac | 1:0.39~rc1-3build1 |
| 93 | Julia | julia | 1.0.3+dfsg-4 |
| 94 | LiveScript | livescript | 1.6.0+dfsg-1 |
| 95 | LLVM asm | llvm | 1:8.0-48~exp1ubuntu1 |
| 96 | LOLCODE | N/A | - |
| 97 | Lua | lua5.3 | 5.3.3-1.1ubuntu1 |
| 98 | M4 | m4 | 1.4.18-2 |
| 99 | Makefile | make | 4.2.1-1.2 |
| 100 | Maxima | maxima | 5.42.1-1build1 |
| 101 | MiniZinc | minizinc | 2.1.7+dfsg1-1 |
| 102 | MSIL | mono-devel | 5.18.0.240+dfsg-2ubuntu2 |
| 103 | Mustache | ruby-mustache | 1.0.2-1 |
| 104 | NASM | nasm | 2.14-1 |
| 105 | Neko | neko | 2.2.0-2build2 |
| 106 | Nickle | nickle | 2.84-1build1 |
| 107 | Nim | nim | 0.19.4-1 |
| 108 | Objective-C | gobjc | 4:8.3.0-1ubuntu3 |
| 109 | OCaml | ocaml | 4.05.0-10ubuntu2 |
| 110 | Octave | octave | 4.4.1-5 |
| 111 | Ook! | N/A | - |
| 112 | PARI/GP | pari-gp | 2.11.1-2 |
| 113 | Parser 3 | parser3-cgi | 3.4.5-4 |
| 114 | Pascal | fp-compiler | 3.0.4+dfsg-22 |
| 115 | Perl 5 | perl | 5.28.1-6 |
| 116 | Perl 6 | rakudo | 2018.12-5 |
| 117 | PHP | php-cli | 2:7.2+69ubuntu1 |
| 118 | Piet | N/A | - |
| 119 | Pike | pike8.0 | 8.0.702-1 |
| 120 | PostScript | ghostscript | 9.26~dfsg+0-0ubuntu7.2 |
| 121 | PPT (Punched tape) | bsdgames | 2.17-28 |
| 122 | Prolog | swi-prolog | 7.6.4+dfsg-2ubuntu1 |
| 123 | Promela (Spin) | spin | 6.4.9+dfsg-1 |
| 124 | Python | python | 2.7.16-1 |
| 125 | R | r-base | 3.5.2-1build1 |
| 126 | Ratfor | ratfor | 1.0-16 |
| 127 | rc | rc | 1.7.4-1build1 |
| 128 | REXX | regina-rexx | 3.6-2.1 |
Note that some languages are not available in Ubuntu (marked as N/A).
This repository includes their implementations in vendor/.
See also vendor/README in detail.
A. Take your pick.
A. Good news: I published a book, "The world of obfuscated, esoteric, artistic programming". It explains how to write a quine, an ascii-art quine, and a uroboros quine like this quine-relay. You can buy my book on amazon.co.jp.
(It also contains my almost all (about forty) works, including alphabet-only Ruby program, radiation-hardened quine, etc., and explains many techniques to write such programs.)
Bad news: It is written in Japanese.
I hope you could translate it to English and help me earn royalties.
A. See the criteria for language inclusion in detail. (In short: please create a deb package and contribute it to Ubuntu.)
A.
A. Do you try to cross the world line?
A. Here you go.
A.
$ sudo apt-get install rake ruby-cairo ruby-rsvg2 ruby-gdk-pixbuf2 \
optipng advancecomp ruby-chunky-png
$ cd src
$ rake2.0 clobber
$ rake2.0
The MIT License applies to all resources
except the files in the vendor/ directory.
The files in the vendor/ directory are from third-parties
and are distributed under different licenses.
See vendor/README in detail.
The MIT License (MIT)
Copyright (c) 2013, 2014, 2015, 2016, 2017, 2018, 2019 Yusuke Endoh (@mametter), @hirekoke
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.