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101 lines
2.2 KiB
Lua
Vendored
101 lines
2.2 KiB
Lua
Vendored
---@brief [[
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---Operators that are functions.
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---This is useful when you want to pass operators to higher order functions.
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---Lua has no currying so we have to make a function for each operator.
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---@brief ]]
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return {
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----------------------------------------------------------------------------
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-- Comparison operators
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----------------------------------------------------------------------------
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lt = function(a, b)
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return a < b
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end,
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le = function(a, b)
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return a <= b
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end,
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eq = function(a, b)
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return a == b
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end,
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ne = function(a, b)
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return a ~= b
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end,
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ge = function(a, b)
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return a >= b
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end,
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gt = function(a, b)
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return a > b
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end,
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----------------------------------------------------------------------------
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-- Arithmetic operators
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----------------------------------------------------------------------------
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add = function(a, b)
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return a + b
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end,
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div = function(a, b)
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return a / b
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end,
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floordiv = function(a, b)
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return math.floor(a / b)
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end,
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intdiv = function(a, b)
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local q = a / b
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if a >= 0 then
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return math.floor(q)
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else
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return math.ceil(q)
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end
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end,
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mod = function(a, b)
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return a % b
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end,
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mul = function(a, b)
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return a * b
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end,
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neq = function(a)
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return -a
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end,
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unm = function(a)
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return -a
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end, -- an alias
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pow = function(a, b)
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return a ^ b
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end,
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sub = function(a, b)
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return a - b
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end,
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truediv = function(a, b)
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return a / b
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end,
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----------------------------------------------------------------------------
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-- String operators
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----------------------------------------------------------------------------
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concat = function(a, b)
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return a .. b
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end,
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len = function(a)
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return #a
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end,
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length = function(a)
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return #a
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end, -- an alias
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----------------------------------------------------------------------------
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-- Logical operators
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----------------------------------------------------------------------------
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land = function(a, b)
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return a and b
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end,
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lor = function(a, b)
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return a or b
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end,
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lnot = function(a)
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return not a
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end,
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truth = function(a)
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return not not a
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end,
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}
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