@solardiz Could you please look at this when you have the chance? I just want to know I'm in the right direction when tackling this issue.

As well, I'm familiar Magnumripper's approach in PR #3908 with removing escape characters in the long test vectors, should I combine Magnumripper's approach to the issue of removing escape characters with the styling I have in my current PR draft?

Thanks! I have some objections but don't let that discourage you.

I soft split each part of the test vector divided by the delimiter ('$'). Enforcing a soft split per section of the vector test string within a limit of 80 characters per line

I can see some merit in splitting at the delimiter but that's not in #3896 and we'd want to discuss it first. I'm not sure I like it. Would we also do so with short test vectors that otherwise need no splitting?

Also, we definitely do not want the splits as short as 80 characters, way longer:

#3896 was originally only about replacing backslash continuation with multiple string constants, like in #3908, and split (or not) consistently. Later (in same issue) we decided to split lines at "no lower, or not much lower, than Jim's split in openbsdsoftraid_variable_code.h was. Maybe 1000 or 2000 or 4000,". The original split was ~1480, so I think we should go for ~2000.