groff

groff is a text markup language created in 1990.

#509on PLDB

36Years Old

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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

Feature	Supported	Example	Token
MultiLine Comments	✓	text text text... .ig This is part of a large block of text that has been temporarily(?) commented out. We can restore it simply by removing the .ig request and the ".." at the end of the block. ..	.ig
Macros	✓	.de P . br . sp .8v ..
Comments	✓	Test \" comment Test Test \# comment Test