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|
-------------------------------------
-- lxi-tools --
-- https://lxi-tools.github.io --
-------------------------------------
-- Basic Lua tests
--[[
Why Lua?
Lua provides a set of unique features that makes it distinct from other
languages. These include:
* Extensible
* Simple
* Efficient
* Portable
* Free and open
Official Lua documentation:
http://www.lua.org/docs.html
Lua quick guide:
https://www.tutorialspoint.com/lua/lua_quick_guide.htm
Lua tutorial:
https://www.tutorialspoint.com/lua/index.htm
--]]
-- Print --
a = 42
print("Hello lxi-tools")
print("Value of a is " .. a)
print("Running " .. _VERSION)
print("Is " .. a .. " the answer?")
-- Conditional --
a = true
if (a)
then
print("a is true")
else
print("a is false")
end
-- Loop --
for i=10, 1, -1 -- for init, max/min value, increment
do
print("loop count " .. i)
end
-- Conditional loops
i = 0
j = 5
while (i < j)
do
print("loop count " .. i)
i = i + 1
end
repeat
print("loop count " .. i)
i = i - 1
until (i == 0)
-- Function --
function add(a, b)
return (a + b)
end
print("10 + 10 = " .. add(10,10))
-- Array --
array = {"duck", 42, "dog"}
print(array[1])
print(array[2])
print(array[3])
-- File I/O --
file = io.open("test.txt", "a")
io.output(file)
io.write("Hello lxi-tools\n")
io.close(file)
-- String to number conversion
a_string = "+5.111E+02"
a_number = tonumber(a_string)
print("a_number = " .. a_number)
print(type(a_string))
print(type(a_number))
-- Math
print("2*2 = " .. 2 * 2)
print("2^4 = " .. 2 ^ 4)
print("sin(2) = " .. math.sin(2))
print("sqrt(16) = " .. math.sqrt(16))
print("pi = " .. math.pi)
print("a_number * 2 = " .. a_number * 2)
-- OS functions
os.execute ("echo 'Hello lxi-tools'")
print(os.date("The time is %X"))
-- print("TERM = " .. os.getenv("TERM"))
print("Done")
|
