update translation checks

igor.lua

@@ -1,5 +1,5 @@
 
-local S = mobs.intllib
+local S = mobs.intllib_npc
 
 -- Igor by TenPlus1
 

init.lua

@@ -1,11 +1,30 @@
 
--- Load support for intllib.
 local path = minetest.get_modpath(minetest.get_current_modname()) .. "/"
 
-local S = minetest.get_translator and minetest.get_translator("mobs_npc") or
-		dofile(path .. "intllib.lua")
+-- Check for translation method
+local S
+if minetest.get_translator ~= nil then
+	S = minetest.get_translator("mobs_npc") -- 5.x translation function
+else
+	if minetest.get_modpath("intllib") then
+		dofile(minetest.get_modpath("intllib") .. "/init.lua")
+		if intllib.make_gettext_pair then
+			gettext, ngettext = intllib.make_gettext_pair() -- new gettext method
+		else
+			gettext = intllib.Getter() -- old text file method
+		end
+		S = gettext
+	else -- boilerplate function
+		S = function(str, ...)
+			local args = {...}
+			return str:gsub("@%d+", function(match)
+				return args[tonumber(match:sub(2))]
+			end)
+		end
+	end
+end
 
-mobs.intllib = S
+mobs.intllib_npc = S
 
 
 -- Check for custom mob spawn file

intllib.lua

@@ -1,3 +0,0 @@
--- Support for the old multi-load method
-return dofile(minetest.get_modpath("intllib").."/init.lua")
-

npc.lua

@@ -1,5 +1,5 @@
 
-local S = mobs.intllib
+local S = mobs.intllib_npc
 
 -- Npc by TenPlus1
 

trader.lua

@@ -1,5 +1,5 @@
 
-local S = mobs.intllib
+local S = mobs.intllib_npc
 
 -- define table containing names for use and shop items for sale