om

local function isFile(path)
	if not fs.isDir(path) and fs.exists(path) then
		return true
	end
	return false
end

local function loadModule(path, modulename)
	assert(isFile(path), "Could not find module: " .. tostring(path))
	local reader = fs.open(path, "r")
	local content = reader.readAll()
	reader.close()
	local filefunction, err = loadstring(content)
	if not filefunction then
		error("Could not load module: " .. tostring(path) .. " Reason: " .. err)
	end
	local ret = {}
	local ok, err = pcall(function() ret = filefunction() end)
	if not ok then
		error("Could not execute module: " .. tostring(path) .. " Reason: " .. err)
	end
	rawset(_G.om, modulename, ret)
end

rawset(_G, "om", {})

loadModule("om_error", "error")
loadModule("om_input", "input")
loadModule("om_lexer", "lexer")
loadModule("om_parser", "parser")

rawset(_G.om, "loadstring", function(...)
	return om.parser:loadstring(...)
end)