tex2mail(1) on Linux
The text 6a0a88bbcd2b, as Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
TeX to ascii math prettyprinter
Flags it lists
-
-TeX -
-by_par -
-debug -
-linelength -
-maxdef -
-noindent -
-ragged