# File lib/active_support/json/backends/okjson.rb, line 374 def subst(u1, u2) if Usurr1 <= u1 && u1 < Usurr2 && Usurr2 <= u2 && u2 < Usurr3 return ((u1-Usurr1)<<10) | (u2-Usurr2) + Usurrself end return Ucharerr end