enscript 1.6.5.90-3 (amd64 binary) in ubuntu bionic

 GNU Enscript takes ASCII files (often source code) and converts them
 to PostScript, HTML or RTF. It can store generated output to a file
 or send it directly to the printer.
 .
 It is often used for its syntax highlighting, as it comes with rules
 for a wide range of programming languages. New rules can be added
 using an awk-like stateful scripting language.