groff

groff is a text markup language created in 1990.

Groff (GNU troff) is a typesetting system that reads plain text mixed with formatting commands and produces formatted output. Output may be PostScript or PDF, html, or ASCII/UTF8 for display at the terminal. Formatting commands may be either low-level typesetting requests (“primitives”) or macros from a supplied set. Users may also write their own macros. All three may be combined.

• Tags: text markup language
• Early development of groff happened in GNU Project
• groff is written in Bourne shell, C++, Make, C, HTML, M4, Perl, Protocol Buffers, sed, Objective C++, C#, CSS, awk, Tex, Ruby, Forth, Vim script, Diff
• The Google BigQuery Public Dataset GitHub snapshot shows 20k users using groff in 26k repos on GitHub
• There are 357 members in the groff subreddit
• Pygments supports syntax highlighting for groff
• See also: (1 related languages) Troff
• 2 PLDB concepts link to groff: Frundis, nroff