'\n' — is
LF. Unix and other Multics-ish systems use only a single-character indicator for end-of-line. (
LF was chosen over the seemingly more-intuitive
carriage return, because that character was typically used to create bold face and underscore [which Markdown doesn’ support] effects on then-standard line printers by printing a line, returning to the start of the line without advancing to the next line, and overprinting or underscoring text as needed.¹)
LF two-character sequence was a common microcomputer conceit — including, of course, for IBM-compatible PCs.
At one point I fooled around with some other escaped character sequences in Airtable — including
'\r', the coding for
carriage return — as well as some escaped numeric encodings, and, IIRC, the only one it seemed to recognize was
Wikipedia has a nicely concise overview of the whole
newline conundrum which still manages to include multiples of the amount of information one would likely care to know.
- One of the word processors that shipped with my first PC, a Columbia MPC-1600, had no support for font effects. Until I learned how to hand-embed Okidata printer control codes into my document text, I used the
LF trick for boldface and underscore — which was, believe it or not, as the users guide directed.