Just gonna throw this out here - any Ruby gem for relatively quick & accurate language detection that you know of?

I didn't expect anyone to think I am asking for a General AI.

I just want semi-accurate heuristic to spare users having to tag language manually.

Proprietary APIs like Google Translate are out of the question. Already using WhatLanguage, it's not working well. If I can't find anything, welp, there's that. Not a big deal.

@Gargron "A semi-accurate heuristic to spare users having to tag language manually"... Have you heard about Pierre Lévy's #IEML? Here's an aborted project envisioned at the time of Identica (2009)
http://perspective-numerique.net/wakka.php?wiki=PropositionCodageIEML (Sorry French)