Use table syntax to work with >lines<

telnet.lua

@@ -1,16 +1,18 @@
+-- Telnet client 
+local telnetClient=nil
+lines = {}
 -- Telnet Server
 function startTelnetServer()
     s=net.createServer(net.TCP, 180)
     s:listen(23,function(c)
-    global_c=c
-    printlines = {}
+	    telnetClient=c
 	    function s_output(str)
-      if(global_c~=nil) then
-        if #printlines > 0 then
-            printlines[ #printlines + 1] = str
+	      if (telnetClient ~= nil) then
+		if (#lines > 0) then
+		    table.insert(lines, str)
 		else
-            printlines[ #printlines + 1] = str
-            global_c:send("\r") -- Send something, so the queue is read after sending
+		    table.insert(lines, str)
+		    telnetClient:send("\r") -- Send something, so the queue is read after sending
 		end
 	      end
 	    end
@@ -20,11 +22,13 @@ function startTelnetServer()
 	    end)
 	    c:on("disconnection",function(c)
 	      node.output(nil)
-      global_c=nil
+	      telnetClient=nil
 	    end)
 	    c:on("sent", function()        
-        if #printlines > 0 then
-          global_c:send(table.remove(printlines, 1))
+		if (#lines > 0) then
+		  local localstr = table.remove(lines, 1)
+		  print( tostring(localstr) )
+		  telnetClient:send(localstr)
 		end
 	    end)
 	    print("Welcome to the Wordclock.")
@@ -32,5 +36,5 @@ function startTelnetServer()
 	    print("- storeConfig()")
 	    print("Visite https://github.com/nodemcu/nodemcu-firmware/wiki/nodemcu_api_en for further commands")
     end)
-    print("Telnetserver is up")
+    print("Telnetserver started")
 end