Prevent matching to episode if 'ep' is followed by a year

[wbio]

PR to address #19. This updates the episode regex so that it fails if the set of numbers following the ep string is 4 digits (i.e. likely a year). In the current logic it passes if it has at least 1-3 digits, but does not evaluate whether there are additional digits after the 3rd one, so the string:

The Keep 1983 1080p Blu-ray AVC DTS-HD MA 2.0-FULLBRUTALiTY

Gets evaluated with a title of The Ke and an episode number of 198

[clement-escolano]

Hello and thank you for your pull request!

Usually, the handlers check for a "boundary" (meaning it should only match "ep 1983" but not "Keep 1983" so it should not cut words). However, the boundary was not set here to take into account things like "S23Ep12" for season and episode.
So I think the best approach is to check if there is a boundary or a number before "ep". If what is before is different (in your case, a letter), then it should not match.

Sorry if this is not clear, parsing torrent names is full of edge cases ^^ If you need more details, happy to discuss further :-)