Unary
From Esolang
Unary is an esoteric programming language designed by Lode Vandevenne in 2005. Unary uses the unary number system as source code. To write a program in Unary, use the following steps:
1. Write your program in Brainfuck.
2. Replace the Brainfuck commands with binary representation as follows:
| Brainfuck | Binary |
|---|---|
>
| 000 |
<
| 001 |
+
| 010 |
-
| 011 |
.
| 100 |
,
| 101 |
[
| 110 |
]
| 111 |
3. Place these commands behind each other, and put an extra "1" in front, so that together they form one large binary number. The last Brainfuck command makes the 3 least significant bits, and the most significant bit is always 1.
4. Convert this binary number to the unary number system, using 0 digits (e.g. 1001 in binary becomes 000000000 in unary).
Contents |
[edit] Number of symbols
According to the specification, Unary uses only one symbol. Some say the EOF character has to be counted as well, thus Unary uses 2 symbols. However, in most other Turing tarpits the EOF symbol isn't counted. Unary still has one symbol less than a Turing tarpit that uses two symbols in its specification, since such a language also has an extra EOF symbol.
[edit] Examples
Program that gets a single character and outputs it again
000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
Cat program, EOF returns 0:
Too large to show here. It's 56623 zero digits in a row.
[edit] Conclusion
Suffice to say, the Brainfuck program Lost Kingdom would generate a very large source file in Unary.
