Is this a protection?

[Apple]

function rK takes string s returns integer
local integer a
if("\\"==s)then
return 92
endif
set a=I[StringHash(s)/ 2033480+1002]
if(s!=A[a])then
return a+32
endif
return a
endfunction

[haxorico]

We cant tell by that alone ss it just checks if the variable is equal to some value. In this case the value is //
And if it is equal to that value it will return 92 which can be anything. Check what happened to the function that called it