Could have to do with charset handling. For the really complex stuff, there's rejit[0]. I wonder if LuaJIT would work; these tools also need IO tricks to be fa

Could have to do with charset handling. For the really complex stuff, there's rejit[0]. I wonder if LuaJIT would work; these tools also need IO tricks to be fast. [0] https://lwn.net/Articles/589009/ https://lwn.net/Articles/589009/