72-esolang-ticker.md

Problem:

NOTE: It is recommended you complete Introduction to Esolangs or MiniBitFlip before solving this one.

Task:

Make an interpreter for an esoteric language called Ticker. Ticker is a descendant of [Tick](https://www.codewars.com/kata/esolang-tick). Your language has the following commands:

>: increment the selector by 1

<: decrement the selector by 1

*: add the ascii value of selected cell to the output tape

+: increment selected cell data by 1. If 256, then it is 0

-: increment selected cell data by -1. If less than 0, then 255

/: set selected cell data to 0

!: add new data cell to the end of the array

You start with selector at 0 and one cell with a value of 0. If selector goes out of bounds, assume 0 for that cell but do not add it to the memory. If a + or - is being made do not change the value of the assumed cell. It will always stay 0 unless it is added to the memory

In other words:

data: start 0 end
selector:   ^
data start 1 2 4 end
selector:        ^
Assume that cell is zero.

Examples:

Consider the following program:

'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/+++++++++++++++++++++++++++++++++*/'

It's output is this:

'Hello World!'

This is made just by using 1 data cell.

Example using multiple data cells:

'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++*!>'

And it's output is still:

'Hello World!'

A more efficient example:

'++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++**!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*<<*>>!>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*<<<<*!>>>>>++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*!>+++++++++++++++++++++++++++++++++*'

Which still returns the classic:

'Hello World!'

Other characters are ingnored and therefore can serve as comments.

After you're done, fell free to make translations and to discuss this kata.

Solution