maybe-baby | A JavaScript implementation | Functional Programming library

I have some long but variable-length texts that are divided into sections marked by ********************. I need to post those texts into a field that only accepts 2048 characters, so I will need to divide that text into groups of no more than 2048 characters but which do not contain an incomplete section.

My regex so far is ^([\s\S]{1,2048})([\s\S]{1,2048})([\s\S]{1,2048})

However, this has two problems:

1) It divides the text into groups that can include an incomplete section. What I want is a complete section, even if it is not a full 2048 characters. Assume the example below is at the end of 2048 characters.

Here's my actual result. Notice that the "7 Minute Workout" section is cut off mid-section