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Unicodefuck
- This esolang is a brainfuck derivative.
- Not to be confused with Unifuck, another brainfuck derivative focused around Unicode.
Unicodefuck is a brainfuck derivative created by User:DigitalDetective47. It is identical to Binaryfuck, except that the program must also be a valid UTF-8 string; each code point within this string must be a valid Unicode character. The language will become more permissive over time as the Unicode Consortium adds new characters, since these can make previously invalid code points valid.
Computational class
Unicodefuck is Turing-complete by reduction from brainfuck using the following substitution table.
| Brainfuck | Unicodefuck | Binaryfuck decoding |
|---|---|---|
| start of program | !G | [->++.++>+,+]
|
+ |
X@Ga4C | >[+.+-+]<+><>-+<
|
- |
X@Ge4C | >[+.+-+]<-><>-+<
|
> |
M0R | ><><+->>
|
< |
M0[ | ><><+-<<
|
. |
M0d | ><><+-+.
|
, |
X@Gu4C | >[+.+-+]<,><>-+<
|
[ |
X@Gd&F | >[+.+-+]<-+><-+[
|
] |
茻 | ]>-+[>]<
|
This substitution uses even cells to store the data of the brainfuck tape, and leaves odd cells at 0 so that loops can waste symbols. Since every 3 bytes encode 8 instructions, parity manipulation is necessary encode an odd number of useful instructions.