Attempt to call global function is nil, but function is not shown in debugger? - eclipse

Question

I am using Eclipse LDT for development, using the packaged Lua EE and Interpreter for Lua 5.2. I need to call the commandDatabase() method from my main method, though when I try, I receive the error:
"attempt to call global 'commandDatabase' (a nil value)".
I have looked up this error, and I am, as far as I can tell, defining methods in the right order.
Lua - attempt to call global 'contains' (a nil value)
When I view it in the debugger, the interpreter does not seem to find any methods I define between commandSystem and commandHelp. It shows each other function in the Variables area as e.g. ["commandSystem"] = function() but commandDatabase() does not appear
I have tried calling a wrapper method like so:
function commandDatabaseStep()
return commandDatabase()
end
... but this did not work either (same error)
The relevant code:
-- System command
function commandSystem()
...
end
-- Database command
function commandDatabase()
if arguments[2] == "no_arg1" then
print("The 'database' command must have at least one argument: [generate, wipe, dump, delete, get <system_name>]", true)
return 2
elseif arguments[2] == "generate" then
local file = io.open(database, "w+")
file:write("#ssmhub database")
file:close(file)
return 1
elseif arguments[2] == "dump" then
print("= DUMP START =")
for line in io.lines(database) do
print(line)
end
print("= DUMP END =")
return 1
-- 1+
elseif arguments[2] == "get" then
-- 2+
if isEmpty(arguments[3]) then
print("The 'database get' command must have a <name> parameter")
return 0
-- 2-
else -- 3+
local file = io.open(database, "r")
for line in io.lines(file) do -- 4+
local state = ""
local id = ""
local dividersFound = 0
line:gsub(".", function(c) -- 5+
if c == "|" then -- 6+
if dividersFound == 0 then -- 7+
state = state .. c
end -- 7-
if dividersFound == 1 then -- 8+
id = id .. c
end -- 8-
dividersFound = dividersFound + 1
end -- 6-
end) -- 5-
io.close(file)
end -- 4-
end -- 3-
else -- 9+
print("Illegal argument for command. Use 'help' for a list of commands and arguments.")
return 0
end -- 9-
end -- 2-
end -- 1-
function commandHelp()
...
end
-- Main
function main()
arguments = readProgramArguments()
commandArgument = arguments[1]
commandCompleteCode = 0
-- Process help and system commands
if commandArgument == "database" then
commandCompleteCode = commandDatabase()
end
end main()

Answer 1

As #luther pointed out, I had one-too-many end-s in commandDatabase.
This wasn't flagged in my IDE because I had not end-ed commandSystem, so commandSystem was nested inside of it.
To fix: add an end to commandSystem, and remove the end which I tagged '-- 1-'.