tldr; There are 3 parsers for wikitext, 1. the "old" wikitext parser written in php 2. a newer effort written in js and named parsoid 3. parsoid.php which is t

tldr; There are 3 parsers for wikitext, 1. the "old" wikitext parser written in php 2. a newer effort written in js and named parsoid 3. parsoid.php which is the one currently in use on (most?) WikiMedia sites. All the important details are on the wiki page: https://www.mediawiki.org/wiki/Parsoid https://www.mediawiki.org/wiki/Parsoid Disclosure: I work for the Wikimedia foundation but not directly on the parsing code. Anything I post on hacker news does not represent the views of my employer.