X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;ds=sidebyside;f=scripts%2Fremove_unknown_procs.lua;h=a1ff0541b94a52e3af3bc65e19f4dd42d23dc1b4;hb=77fa4462f90fc9108dc9593c006eec8725578392;hp=6fb857edfe11d7317ccf2c219dbea472c7bcd5de;hpb=491d183c78213b030d5d204bcf4c84de9f9a3d25;p=ardour.git

diff --git a/scripts/remove_unknown_procs.lua b/scripts/remove_unknown_procs.lua
index 6fb857edfe..a1ff0541b9 100644
--- a/scripts/remove_unknown_procs.lua
+++ b/scripts/remove_unknown_procs.lua
@@ -7,15 +7,19 @@ ardour { ["type"] = "EditorAction", name = "Remove Unknown Plugins",
 }
 
 function factory (params) return function ()
+	-- iterate over all tracks and busses
 	for route in Session:get_routes ():iter () do
+		-- route is-a http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Route
 		local i = 0;
 		repeat
 			proc = route:nth_processor (i)
+			-- proc is a http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Processor
+			-- try cast it to http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:UnknownProcessor
 			if not proc:isnil () and not proc:to_unknownprocessor ():isnil () then
 				route:remove_processor (proc, nil, true)
 			else
 				i = i + 1
 			end
-		until proc:isnil()
+		until proc:isnil ()
 	end
 end end