local str Lua echo server opening os date while str and str and str do

1
2
3
4
5
6
7
8
9
local str = "Lua echo server opening / " .. os.date("%T")
while str and str ~= "" and str ~= "\r" do
io.write(str, "\r\n")
io.flush()
str = io.read()
end
io.write("Lua echo server closing / " .. os.date("%T"), "\r\n")