As for the flags, it's easy to set the flags up, but how can I determine if it's Original, BC or Wrath? That's the complex part.
i would base it on the materials used. if any come from outlands, it's a TBC recipe. if any come from Northrend, it's a WotLK recipe. for the most part, i suspect they'll also line up pretty closely to the 1-300/300-375/375-450 breakdowns. the transition points are where you'd need to do some checking of materials...
a different approach is to base it on the crafted itemlevels. i think tbc items tend to be very high level in comparison to pretbc items. and for enchanting, they've got the level 35 restriction as an indicator.
not sure how you'd identify jewelcrafting or inscription recipes.... it sort of depends on why you'd want to classify things.
yeah, smelting/mining is annoying. you "/cast smelting" but you get a window that says "mining". i could probably just throw a hack in there for the ARL stuff... not that there are many smelting drops worth even bothering over.
and for some reason, smelting is not linkable. go figure.
oh, and while i'm posting here. would it be possible to classify the recipes in ARL by expansion? somebody asked about that in the skillet thread. i was thinking maybe you could flag them based on materials -- anything using a material from TBC would be a TBC recipe, anything using a material from WOTLK would be a WOTLK recipe.
sonic, i can't help but think you've got something funky with your addons here since you were saying skillet is also acting funny with weird translations. i would suggest turning off everything but arl (or skillet) and seeing if the problem still exists.
Ideally I want it to display both the acquisition information and the recipe pattern. Would you be able to make a ticket on CF for me regarding this?
fwiw, a goal of my skillet branch is to provide hooks into the inner workings so that something like tsi or arl can feed data right into the main window. i'm not 100% sure of how it's all going to work, but i'd definitely like to see arl take advantage once it's a thing.