User "Thelema314" posted a comment on MediaWiki.r87936.

Full URL: http://www.mediawiki.org/wiki/Special:Code/MediaWiki/87936#c22147
Commit summary:

Corrects a small bug causing <math>\sin</math> to return an unknown
function error

Comment:

Oops, I forgot that this was in a lexer (which has longest match semantics for 
match cases, with ties broken to the first rule) as opposed to the usual OCaml 
matching construct, which has first-match semantics (and no concept of the 
longest match).

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