[Language Addition] BBCode

This replaces @janmm14's github.com/github-linguist/linguist/issues/3516:

Please see the guidelines to add support for a new language to Linguist. If bbcode meets the requirement on in-the-wild usage, don't hesitate to open a pull request.

Language Name

BBCode

URL Of Example Repository

Because BBCode is utilised extensively across phpBB and vBulletin forums, its primary use case is in code snippets, like gist.github.com/betaveros/48588f5443ea664e3912/6d2a86a3d426a2f94b8b1d2671fa572fc3119e2c.

However, because the language can also be defined inline, with CommonMark's ~~~CSV equivalent to a <pre><code>, its absence causes github/markup/issues/1851.

URL Of Syntax-Highlighting Grammar

• github.com/Ernir/Kate-bbcode/blob/c325f2ea03d59c10257ba61c9aea6b6386c4b5c9/bbcode.xml

• github.com/highlightjs/highlightjs-bbcode/blob/e4b537ab2fb0594061200dcf60df506cec3edbb7/bbcode.js#L1-L38 constitutes official support.

• vim.org/scripts/script.php?script_id=2109

Most Popular Extensions

.BBCode would the applicable extension, because none have been standardised.

Detected Language

Currently, text/plain.