Re: [proposal] infix function syntax sugar
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: Re: [proposal] infix function syntax sugar
- From: "Dimiter \"malkia\" Stanev" <malkia@...>
- Date: 2011年12月18日 01:33:31 -0800
-- untabified version (what's up with aquamacs?)
local function infix(...)
local function eval(t)
local l = t[1]
if type(l) == "table" then l = eval(l) end
for k = 2,#t,2 do
local f, r = t[k], t[k+1]
u if type(r) == "table" then r = eval(r) end
l = f(l, r)
end
return l
end
return eval(...)
end
local function add(a,b)
return a + b
end
local function sub(a,b)
return a - b
end
local function mul(a,b)
return a * b
end
local function div(a,b)
return a / b
end
-- Here be { brackets, not (
print( infix{ 12 ,add, 3 ,add, 10 ,sub, { 30 ,mul, 10 } } )