¯\

¯\ is a version of _/, with a few simple modifications. It's based on an observation that none of the sub replacement patterns could interact with each other. It also uses another syntax.

Syntax / Semantics

A program is a list of "sub replacements", each on their own line, written as:

x/y¯z\w

All items are binary numbers(though w is restricted to a single digit). z is a starting data string. On every iteration, w is checked. If it's 0, then the below sub replacements data string is appended to z; else the above sub replacements data string is appended. Note that these "wrap around"(so if you were at the start of the code, and it was 0, then the last replacement would be copied). Then w is flipped. Next, z is searched from the left for any instance of the binary substring x. When found, it is replaced with y, and the search then continues forward, until the end of the string is reached, and the next sub replacement is selected for running. This loops cyclically, until a "primitive infinite loop" is reached(one where no replacements apply, and only appending happens), or when a data string . A very simple program could be:

10/110¯10\0

In which the (only) data string evolves as:

10
1010
110110
110110110110
1110111011101110
11101110111011101110111011101110
1111011110111101111011110111101111011110