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https://github.com/eatnumber1/goal
g()()()()('al') → "gooooal"
https://github.com/eatnumber1/goal
Last synced: 11 days ago
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g()()()()('al') → "gooooal"
- Host: GitHub
- URL: https://github.com/eatnumber1/goal
- Owner: eatnumber1
- Created: 2014-07-25T20:00:23.000Z (over 10 years ago)
- Default Branch: master
- Last Pushed: 2022-12-21T22:49:14.000Z (almost 2 years ago)
- Last Synced: 2024-08-02T14:07:41.931Z (4 months ago)
- Language: C
- Homepage:
- Size: 434 KB
- Stars: 336
- Watchers: 17
- Forks: 178
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# g()('al')
`g()('al')` is a challenge whereby you need to write in as many languages as
possible code which enables the code `g()('al')` to return the string "goal",
the code `g()()('al')` to return the string "gooal", the code `g()()()('al')`
return the string "goooal", etc.
`g()('al')` is the creation of [acruikshank] who originally posed it as a
[functional programming challenge][carbonfive-challenge]. Extensive stubbornness
and misinterpretation led to its current form.
## Rules
1. __You are encouraged to break the rules, cleverly.__
2. When executed, the solution must print "goal" with sufficient o's to
demonstrate the program's functionality.
11. The code `g()('al')` must appear in the source.
1. `g()('al')` must not be a string literal.
2. `'al'` must be a string, or your language's equivalent thereof. You may
use your language's standard method of creating a string (e.x. C should
use `"`, ruby may use either `"` or `'`).
12. `g()('al')` must be a valid [rvalue] if applicable in your language.
7. `g()('al')` may not print the string. If returning a string cannot be done
in your language, you should submit rationale as to why this is impossible
for a solution which prints a string to be accepted.
642. You must be able to insert an arbitrary number of `()` calls without
modification to your solution. Therefore solutions like
[this][c-limited-calls] are incorrect.
14. `g('al')` must return `"gal"`.
If you see a complete solution that breaks any of these rules, file a bug!
If you have a solution that is close, but does not meet these rules, submit it
anyway. A close and interesting solution is better than no solution.
### Previous Solutions
The more exciting solutions are original, not applying techniques that have
already been discovered. The following broadly applicable techniques have
already been discovered:
* [Self-modifying code][c-self-modify]
* [Aborting early][sh-abort-early]
* [Human language][eng-soln]
## Languages
| | Solved | Incomplete |
|:-------------:|:----------------------:|:---------------------:|
| ActionScript | [•][as-soln] | |
| Befunge | [•][befunge-soln] | |
| Bel | [•][bel-soln] | |
| Brainfuck | | [•][bf-soln] |
| C | [•][c-soln] | |
| C# | [•][cs-soln] | |
| C++ | [•][c++-soln] | |
| Clojure | [•][clojure-soln] | |
| Coffeescript | [•][coffee-soln] | |
| Common Lisp | [•][clisp-soln] | |
| D | [•][d-soln] | |
| Dart | [•][dart-soln] | |
| [DYLD] | [•][dyld-soln] | |
| Emacs Lisp | [•][elisp-soln] | |
| English | [•][eng-soln] | |
| [Finite State Transducer][fst] | [•][fst-soln] | |
| Forth | [•][fs-soln] | |
| GNU Octave | [•][octave-soln] | |
| Go | [•][go-soln] | |
| Groovy | [•][groovy-soln] | |
| Haskell | [•][hs-soln] | |
| Haxe | [•][hx-soln] | |
| IO | [•][io-soln] | |
| Java | [•][java-soln] | |
| JavaScript | [•][js-soln] | |
| Julia | [•][jl-soln] | |
| Kotlin | [•][kt-soln] | |
| Lua | [•][lua-soln] | |
| Mathematica | [•][math-soln] | |
| Nimrod | [•][nim-soln] | |
| Nix | | [•][nix-soln] |
| OCaml | [•][ocaml-soln] | |
| Objective-J | [•][obj-j-soln] | |
| PHP | | [•][php-soln] |
| PHP 7 | [•][php7-soln] | |
| Perl | [•][perl-soln] | |
| Python | [•][py-soln] | |
| R | [•][r-soln] | |
| Raku | [•][raku-soln] | |
| Regexp | | [•][regexp-soln] |
| Ruby | | [•][rb-soln] |
| Rust | [•][rust-soln] | |
| Scala | [•][scala-soln] | |
| Scheme | [•][scm-soln] | |
| Sed | [•][sed-soln] | |
| Bourne Shell | | [•][sh-soln] |
| TCL | [•][tcl-soln] | |
| [XP][xp-lang] | [•][xp-soln] | |
| ZSH | [•][zsh-soln] | |
Help out, add some more languages!
## g()('lf')
Lets play [golf]! Submit a pull-request with a shorter solution for an already
solved language and you can get the title of shortest, as shown in that
language's [README][c-sharp-readme].
Note: I'm not done making READMEs for all the languages yet. Don't let that stop
you!
## Editor's Picks
These are some of the editor's favorite submissions:
* Befunge [solution][befunge-ed-pick] by [arcovion]
* C [solution][c-ed-pick] by [tolmasky]
* C++ [solution][c++-ed-pick] by [derrickturk]
* C# [solution][cs-ed-pick] by [scorpiona] with an [explanation][cs-explain]
* Finite State Transducer [solution][fst-ed-pick] by [zippy-white]
* Dynamic Linker [solution][dyld-ed-pick] by [eatnumber1]
* Haskell [solution][hs-ed-pick] by [capicue] with an [explanation][hs-explain]
* Java [solution][java-ed-pick] by [lawl] with an [explanation][java-explain]
* Nimrod [solution][nim-ed-pick] by [dom96]
* Perl [solution][perl-ed-pick] by [worr] with an [explanation][perl-explain]
* SH incomplete [solution][sh-ed-pick] by [csandreasen]
* ZSH [solution][zsh-ed-pick] by [o11c] with an [explanation][zsh-explain]
[//]: # (Solution URLs)
[as-soln]: https://github.com/eatnumber1/goal/tree/master/solved/actionscript
[befunge-soln]: https://github.com/eatnumber1/goal/tree/master/solved/befunge-93
[bel-soln]: https://github.com/eatnumber1/goal/tree/master/solved/bel
[bf-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/brainfuck
[c++-soln]: https://github.com/eatnumber1/goal/tree/master/solved/c++
[c-soln]: https://github.com/eatnumber1/goal/tree/master/solved/c
[clisp-soln]: https://github.com/eatnumber1/goal/tree/master/solved/common-lisp
[clojure-soln]: https://github.com/eatnumber1/goal/tree/master/solved/clojure
[coffee-soln]: https://github.com/eatnumber1/goal/tree/master/solved/coffeescript
[cs-soln]: https://github.com/eatnumber1/goal/tree/master/solved/c-sharp
[d-soln]: https://github.com/eatnumber1/goal/tree/master/solved/d
[dart-soln]: https://github.com/eatnumber1/goal/tree/master/solved/dart
[dyld-soln]: https://github.com/eatnumber1/goal/tree/master/solved/dyld
[elisp-soln]: https://github.com/eatnumber1/goal/tree/master/solved/emacs-lisp
[eng-soln]: https://github.com/eatnumber1/goal/tree/master/solved/english-spoken
[fs-soln]: https://github.com/eatnumber1/goal/tree/master/solved/forth
[fst-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/finite-state-transducer
[go-soln]: https://github.com/eatnumber1/goal/tree/master/solved/go
[groovy-soln]: https://github.com/eatnumber1/goal/tree/master/solved/groovy
[hs-soln]: https://github.com/eatnumber1/goal/tree/master/solved/haskell
[hx-soln]: https://github.com/eatnumber1/goal/tree/master/solved/haxe
[io-soln]: https://github.com/eatnumber1/goal/tree/master/solved/io
[java-soln]: https://github.com/eatnumber1/goal/tree/master/solved/java
[jl-soln]: https://github.com/eatnumber1/goal/tree/master/solved/julia
[js-soln]: https://github.com/eatnumber1/goal/tree/master/solved/javascript
[kt-soln]: https://github.com/eatnumber1/goal/tree/master/solved/kotlin
[lua-soln]: https://github.com/eatnumber1/goal/tree/master/solved/lua
[math-soln]: https://github.com/eatnumber1/goal/tree/master/solved/mathematica
[nim-soln]: https://github.com/eatnumber1/goal/tree/master/solved/nimrod
[nix-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/nix
[obj-j-soln]: https://github.com/eatnumber1/goal/tree/master/solved/objective-j
[ocaml-soln]: https://github.com/eatnumber1/goal/tree/master/solved/ocaml
[octave-soln]: https://github.com/eatnumber1/goal/tree/master/solved/octave
[perl-soln]: https://github.com/eatnumber1/goal/tree/master/solved/perl
[php7-soln]: https://github.com/eatnumber1/goal/tree/master/solved/php
[py-soln]: https://github.com/eatnumber1/goal/tree/master/solved/python
[r-soln]: https://github.com/eatnumber1/goal/tree/master/solved/r
[raku-soln]: https://github.com/eatnumber1/goal/tree/master/solved/raku
[rb-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/ruby
[rust-soln]: https://github.com/eatnumber1/goal/tree/master/solved/rust
[regexp-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/regexp
[scala-soln]: https://github.com/eatnumber1/goal/tree/master/solved/scala
[scm-soln]: https://github.com/eatnumber1/goal/tree/master/solved/scheme
[sed-soln]: https://github.com/eatnumber1/goal/tree/master/solved/sed
[sh-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/bourne-shell
[tcl-soln]: https://github.com/eatnumber1/goal/tree/master/solved/tcl
[xp-soln]: https://github.com/eatnumber1/goal/tree/master/solved/xp
[zsh-soln]: https://github.com/eatnumber1/goal/tree/master/solved/zsh
[//]: # (Bad solution URLs)
[c-limited-calls]: https://github.com/eatnumber1/goal/tree/master/incomplete/c/crawford
[c-self-modify]: https://github.com/eatnumber1/goal/tree/master/incomplete/c/tolmasky
[sh-abort-early]: https://github.com/eatnumber1/goal/tree/master/incomplete/bourne-shell/csandreasen/goal.sh
[//]: # (Non-solution URLs)
[php-soln]: https://github.com/eatnumber1/goal/tree/master/incomplete/php
[//]: # (Editor's pick URLs)
[befunge-ed-pick]: https://github.com/eatnumber1/goal/tree/master/solved/befunge-93/Arcovion/goal.bf
[c++-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/c%2B%2B/derrickturk/goal.cpp
[c-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/c/tolmasky/goal.c
[cs-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/c-sharp/scorpiona/Program.cs
[dyld-ed-pick]: https://github.com/eatnumber1/goal/tree/master/solved/dyld/eatnumber1
[fst-ed-pick]: https://github.com/eatnumber1/goal/blob/master/incomplete/finite-state-transducer/zippy-white
[hs-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/haskell/capicue/goal.hs
[java-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/java/lawl/Main.java
[nim-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/nimrod/dom96/goal.nim
[perl-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/perl/worr/goal.pl
[sh-ed-pick]: https://github.com/eatnumber1/goal/blob/master/incomplete/bourne-shell/csandreasen/goal.sh
[zsh-ed-pick]: https://github.com/eatnumber1/goal/blob/master/solved/zsh/o11c/goal.zsh
[//]: # (Solution explanation URLs)
[cs-explain]: https://github.com/eatnumber1/goal/blob/master/solved/c-sharp/scorpiona/README.md
[hs-explain]: https://github.com/eatnumber1/goal/issues/99
[java-explain]: https://github.com/eatnumber1/goal/blob/master/solved/java/lawl/README.md
[zsh-explain]: https://github.com/eatnumber1/goal/pull/69#issuecomment-50285290
[perl-explain]: https://github.com/eatnumber1/goal/blob/master/solved/perl/worr/README.md
[//]: # (User URLs)
[acruikshank]: https://github.com/acruikshank
[arcovion]: https://github.com/Arcovion
[capicue]: https://github.com/capicue
[csandreasen]: https://github.com/csandreasen
[derrickturk]: https://github.com/derrickturk
[dom96]: https://github.com/dom96
[eatnumber1]: https://github.com/eatnumber1
[lawl]: https://github.com/lawl
[o11c]: https://github.com/o11c
[scorpiona]: https://github.com/scorpiona
[tolmasky]: https://github.com/tolmasky
[worr]: https://github.com/worr
[zippy-white]: https://github.com/zippy-white
[//]: # (Other URLs)
[c-sharp-readme]: https://github.com/eatnumber1/goal/blob/master/solved/c-sharp/README.md
[carbonfive-challenge]: https://github.com/carbonfive/functional-programming-weekly-challenge/tree/master/Week002
[dyld]: http://en.wikipedia.org/wiki/Dynamic_linking
[fst]: http://en.wikipedia.org/wiki/Finite_state_transducer
[golf]: http://en.wikipedia.org/wiki/Code_golf
[rvalue]: http://en.wikipedia.org/wiki/Value_(computer_science)#lrvalue
[xp-lang]: http://xp-lang.net
[//]: # ( vim: set et ts=4 sw=4 sts=4 tw=80: )