Approved by someone.

Generated in Python using a recursive function.

Impressive. You didn't write that by hand did you?

Perl, Shell:

strng (2nd argument) contains newline characters that need to be ignored when calculating the match positions.

This is not mentioned in the task description & different from the Python translation.

These newlines should be removed from the string.

Already resolved.

Already resolved

fixed there

Not a kata suggestion

Ruby:

You are allowed to use a number more than once

(Actual & expected were flipped in the assertion, so your code actually failed to consider repeating elements)

Added in Ruby

Done in this fork

Runs in Node v10.x ...for some reason

Fixed in this fork