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An uroboros program with 100 programming languages

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Quine Relay

CI

What this is

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.

Language Uroboros

(If you want to see the old 50-language version, see 50 branch.)

Usage

Ubuntu

If you are using Ubuntu 21.10 (Impish Indri), you can perform the following steps.

1. Install all interpreters/compilers.

First, you have to type the following apt-get command to install all of them.

$ sudo apt-get install afnix algol68g aplus-fsf aspectj asymptote \
  ats2-lang bash bc bf bsdgames bsh clisp clojure cmake coffeescript \
  dafny dc dhall elixir emacs-nox erlang f2c fish flex fp-compiler \
  fsharp g++ gambas3-gb-pcre gambas3-scripter gap gawk gcc gdb gdc \
  generator-scripting-language genius gforth gfortran ghc ghostscript \
  gnat gnu-smalltalk gnucobol4 gnuplot gobjc golang gpt groovy guile-3.0 \
  gzip haxe icont iconx intercal iverilog jasmin-sable jq julia ksh \
  libpolyml-dev lisaac livescript llvm lua5.3 m4 make maxima minizinc \
  mono-devel mono-mcs mono-vbnc nasm neko nickle nim node-typescript \
  nodejs ocaml octave openjdk-11-jdk pari-gp parser3-cgi perl php-cli \
  pike8.0 polyml python3 r-base rakudo ratfor rc regina-rexx ruby \
  ruby-mustache rustc scala scilab-cli sed slsh spin squirrel3 \
  surgescript swi-prolog tcl tcsh valac vim xsltproc yabasic yorick zoem \
  zsh

Then, build the bundled interpreters.

$ sudo apt-get install cmake libpng-dev libgd-dev groff bison curl
$ make -C vendor

2. Run each program on each interpreter/compiler.

$ 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.sci
$ scilab-cli -nb -f QR.sci > QR.sed
$ sed -E -f QR.sed QR.sed > QR.spl
$ ./vendor/local/bin/spl2c < QR.spl > QR.spl.c && gcc -z muldefs -o QR -I ./vendor/local/include -L ./vendor/local/lib QR.spl.c -lspl -lm &&
  ./QR > QR.sl
$ slsh QR.sl > QR.st
$ gst QR.st > QR.nut
$ squirrel QR.nut > QR.sml
$ polyc -o QR QR.sml && ./QR > QR.sq
$ ruby vendor/subleq.rb QR.sq > QR.ss
$ surgescript QR.ss > 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
$ LANG=C LD_LIBRARY_PATH=/usr/lib/afnix axi QR.als > QR.aheui
$ ruby vendor/aheui.rb QR.aheui > QR.a68
$ a68g QR.a68 > QR.ante
$ ruby vendor/ante.rb QR.ante > QR.aj
$ 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.d
$ gdc -o QR QR.d && ./QR > QR.dfy
$ dafny QR.dfy && mono QR.exe > QR.dc
$ dc QR.dc > QR.dhall || true
$ dhall text --file QR.dhall > 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.gpt
$ mv QR.c QR.c.bak && gpt -t QR.c QR.gpt && gcc -o QR QR.c && ./QR > QR.grass &&
  mv QR.c.bak QR.c
$ ruby vendor/grass.rb QR.grass > 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.jl
$ julia QR.jl > QR.ksh
$ ksh QR.ksh > QR.lazy
$ lazyk QR.lazy > qr.li
$ lisaac qr.li && ./qr > 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
$ minizinc --solver Gecode --soln-sep '' QR.mzn > 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
$ python3 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.

Docker

Simply build the image and run a container as follows:

$ docker build -t qr .
$ docker run --privileged --rm -e CI=true qr

Note: you need to run in privileged mode otherwise the maxima command will fail.

If you want to check generated files, you can mount the local directory in the Docker container (but keep using the vendor directory of the container), as follows:

$ docker run --privileged --rm -e CI=true -v $(pwd):/usr/local/share/quine-relay -v /usr/local/share/quine-relay/vendor qr

Other platforms

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.

Tested interpreter/compiler versions

I used the following Ubuntu deb packages to test this program.

# language ubuntu package version
1 Ruby ruby 1:2.7+2build1
2 Rust rustc 1.51.0+dfsg1+llvm-1~exp3ubuntu1
3 Scala scala 2.11.12-5
4 Scheme guile-3.0 3.0.5-4build1
5 Scilab scilab-cli 6.1.0+dfsg1-7
6 sed sed 4.7-1ubuntu1
7 Shakespeare N/A -
8 S-Lang slsh 2.3.2-5build2
9 Smalltalk gnu-smalltalk 3.2.5-1.3ubuntu1
10 Squirrel squirrel3 3.1-8build1
11 Standard ML polyml, libpolyml-dev 5.7.1-4ubuntu1
12 Subleq N/A -
13 SurgeScript surgescript 0.5.4.4-1
14 Tcl tcl 8.6.11+1build1
15 tcsh tcsh 6.21.00-1.1
16 Thue N/A -
17 TypeScript node-typescript 4.1.3-1
18 Unlambda N/A -
19 Vala valac 0.52.6-0ubuntu1
20 Velato N/A -
21 Verilog iverilog 11.0-1
22 Vimscript vim 2:8.2.2434-3ubuntu3
23 Visual Basic mono-vbnc 4.0.1-3
24 Whitespace N/A -
25 XSLT xsltproc 1.1.34-4
26 Yabasic yabasic 1:2.90.1-1
27 Yorick yorick 2.2.04+dfsg1-12
28 Zoem zoem 11-166-2
29 zsh zsh 5.8-6build1
30 A+ aplus-fsf 4.22.1-10.1ubuntu2
31 Ada gnat 10ubuntu2
32 AFNIX afnix 3.4.0-2build1
33 Aheui N/A -
34 ALGOL 68 algol68g 2.8.4-1
35 Ante N/A -
36 AspectJ aspectj 1.9.2-2
37 Asymptote asymptote 2.70+ds-2
38 ATS ats2-lang 0.4.0-1
39 Awk gawk 1:5.1.0-1build1
40 bash bash 5.1-3ubuntu2
41 bc bc 1.07.1-2build3
42 BeanShell bsh 2.0b4-20
43 Befunge N/A -
44 BLC8 N/A -
45 Brainfuck bf 20041219ubuntu7
46 C gcc 4:11.2.0-1ubuntu1
47 C++ g++ 4:11.2.0-1ubuntu1
48 C# mono-mcs 6.8.0.105+dfsg-3.2
49 Chef N/A -
50 Clojure clojure 1.10.2-1
51 CMake cmake 3.18.4-2ubuntu2
52 Cobol gnucobol4 4.0early20200606-5
53 CoffeeScript coffeescript 1.12.8~dfsg-5
54 Common Lisp clisp 1:2.49.20180218+really2.49.92-3ubuntu1
55 D gdc 4:11.2.0-1ubuntu1
56 Dafny dafny 2.3.0+dfsg-0.1
57 dc dc 1.07.1-2build3
58 Dhall dhall 1.32.0-1build1.1
59 Elixir elixir 1.10.3.dfsg-1.1
60 Emacs Lisp emacs-nox 1:27.1+1-3ubuntu3
61 Erlang erlang 1:23.2.6+dfsg-1build1
62 F# fsharp 4.0.0.4+dfsg2-2
63 FALSE N/A -
64 Flex flex 2.6.4-8build1
65 Fish fish 3.1.2-3ubuntu1
66 Forth gforth 0.7.3+dfsg-9build4.1
67 FORTRAN77 f2c 20200916-1
68 Fortran90 gfortran 4:11.2.0-1ubuntu1
69 Gambas script gambas3-scripter, gambas3-gb-pcre 3.16.2-3build1
70 GAP gap 4.11.0-4
71 GDB gdb 11.1-0ubuntu2
72 GEL (Genius) genius 1.0.25-2
73 GeneratorScriptingLanguage generator-scripting-language 4.1.5-3
74 Gnuplot gnuplot 5.4.1+dfsg1-1
75 Go golang 2:1.17~0ubuntu1
76 GolfScript N/A -
77 G-Portugol gpt 1.1-7
78 Grass N/A -
79 Groovy groovy 2.4.21-1
80 Gzip gzip 1.10-4ubuntu1
81 Haskell ghc 8.8.4-2build2
82 Haxe haxe 1:4.1.5-1
83 Icon icont, iconx 9.4.3-7ubuntu1
84 INTERCAL intercal 30:0.30-3
85 Jasmin jasmin-sable 2.5.0-2
86 Java openjdk-11-jdk 11.0.12+7-0ubuntu3
87 JavaScript nodejs 12.22.5~dfsg-5ubuntu1
88 Jq jq 1.6-2.1ubuntu2
89 JSFuck nodejs 12.22.5~dfsg-5ubuntu1
90 Julia julia 1.5.3+dfsg-3
91 ksh ksh 2020.0.0+really93u+20120801-9
92 Lazy K N/A -
93 Lisaac lisaac 1:0.39~rc1-3.1
94 LiveScript livescript 1.6.1+dfsg-1
95 LLVM asm llvm 1:13.0-53~exp1
96 LOLCODE N/A -
97 Lua lua5.3 5.3.3-1.1ubuntu2
98 M4 m4 1.4.18-5ubuntu1
99 Makefile make 4.3-4ubuntu1
100 Maxima maxima 5.44.0-3
101 MiniZinc minizinc 2.5.3+dfsg1-1
102 MSIL mono-devel 6.8.0.105+dfsg-3.2
103 Mustache ruby-mustache 1.1.1-2
104 NASM nasm 2.15.05-1
105 Neko neko 2.3.0-1build2
106 Nickle nickle 2.90
107 Nim nim 1.4.6+really1.4.2-2
108 Objective-C gobjc 4:11.2.0-1ubuntu1
109 OCaml ocaml 4.11.1-4
110 Octave octave 6.2.0-1
111 Ook! N/A -
112 PARI/GP pari-gp 2.13.1-1
113 Parser 3 parser3-cgi 3.4.6-2
114 Pascal fp-compiler 3.2.2+dfsg-1ubuntu2
115 Perl 5 perl 5.32.1-3ubuntu3
116 Perl 6 rakudo 2020.12+dfsg-1
117 PHP php-cli 2:8.0+82~0build1
118 Piet N/A -
119 Pike pike8.0 8.0.1116-1
120 PostScript ghostscript 9.54.0~dfsg1-0ubuntu2
121 PPT (Punched tape) bsdgames 2.17-28build1
122 Prolog swi-prolog 8.2.4+dfsg-1ubuntu1
123 Promela (Spin) spin 6.5.2+dfsg-1
124 Python python3 3.9.4-1build1
125 R r-base 4.0.4-1build1
126 Ratfor ratfor 1.05-1
127 rc rc 1.7.4+97.gceb59bb-4
128 REXX regina-rexx 3.6-2.4

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.

Frequently asked questions

Q. Why?

A. Take your pick.

Q. How?

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 an 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 into English and help me earn royalties.

Q. Language XXX is missing!

A. See the criteria for language inclusion in detail. (In short: please create a deb package and contribute it to Ubuntu.)

See also ❤️.

Q. Does it really work?

A. CI

Q. How long did it take you?

A. Do you try to cross the world line?

Q. The code does not fit into my display!

A. Here you go.

Q. How was the code generated?

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

License

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, 2020 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.

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An uroboros program with 100 programming languages

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