Hi,
being pretty new to Lua, I’m heavily using it as a configuration language for my C++ code. To make the configuration as user friendly as possible, I selected a table-driven approach for the configuration file, as it offers an easy-to-read hierarchy, e.g.:
function setFunction()
print("received SET command")
end
function statusFunction()
print("received STATUS command")
end
interface = {
port = "/dev/ttyS0",
baud = 9600,
incoming = {
SET = setFunction,
STATUS = statusFunction
}
}
So far, this works just great, even allowing global Lua-Functions to be referenced from within the table.
My next idea was to put the functions’ code directly into the table, making the configuration file even more readable:
interface = {
port = "/dev/ttyS0",
baud = 9600,
incoming = {
SET = function()
print("received SET command")
end,
STATUS = function()
print("received SET command")
end
}
}
But while this simple example still works fine, it seems that there is no way reference another table value from the same table constructor: To give an example, I cannot print the port from my functions:
interface = {
port = "/dev/ttyS0",
baud = 9600,
incoming = {
SET = function()
print("received SET command from:")
print(interface["port"]) -- error!!
end,
STATUS = function()
print("received SET command")
end
}
}
Is there a way to work around this problem, ideally by keeping everything within the same table constructor?
Thanks for any suggestions,
Christof