Small simplifications

chess.lua

@@ -528,10 +528,10 @@ function realchess.move(pos, from_list, from_index, to_list, to_index, count, pl
 
 	if meta:get_string("lastMove") == "black" then
 		minetest.chat_send_player(playerWhite, "["..os.date("%H:%M:%S").."] "..
-				playerName.." has moved a "..pieceFrom:match("%a+:(%a+)")..", it's now your turn.")
+				playerName.." has moved a "..pieceFrom:match(":(.-)%_")..", it's now your turn.")
 	elseif meta:get_string("lastMove") == "white" then
 		minetest.chat_send_player(playerBlack, "["..os.date("%H:%M:%S").."] "..
-				playerName.." has moved a "..pieceFrom:match("%a+:(%a+)")..", it's now your turn.")
+				playerName.." has moved a "..pieceFrom:match(":(.-)%_")..", it's now your turn.")
 	end
 
 	if pieceTo:find("king") then

enchanting.lua

@@ -56,7 +56,7 @@ function enchanting.fields(pos, _, fields)
 	local tool = inv:get_stack("tool", 1)
 	local mese = inv:get_stack("mese", 1)
 	local orig_wear = tool:get_wear()
-	local mod, name = tool:get_name():match("([%w_]+):([%w_]+)")
+	local mod, name = tool:get_name():match("(.*):(.*)")
 	local enchanted_tool = mod..":enchanted_"..name.."_"..next(fields)
 
 	if mese:get_count() > 0 and minetest.registered_tools[enchanted_tool] then

mailbox.lua

@@ -77,9 +77,9 @@ xdecor.register("mailbox", {
 local function img_col(stack)
 	if not stack then return "" end
 	if stack.inventory_image ~= "" then
-		return stack.inventory_image:match("([%w_]+)%.png")..".png"
+		return stack.inventory_image:match("(.*)%.png")..".png"
 	else
-		return stack.tiles[1]:match("([%w_]+)%.png")..".png"
+		return stack.tiles[1]:match("(.*)%.png")..".png"
 	end
 end
 
@@ -95,7 +95,7 @@ function mailbox.formspec(pos, owner, num)
 					","..i..",#FFFFFF,x "..meta:get_string("stack"..i):match("%s(%d+)")..","
 
 				img = img..i.."="..img_col(minetest.registered_items[
-					meta:get_string("stack"..i):match("([%w_:]+)")])..","
+					meta:get_string("stack"..i):match("(.*)%s")])..","
 			end
 		end
 

worktable.lua

@@ -34,8 +34,8 @@ local def = { -- Nodebox name, yield, definition.
 function worktable.get_recipe(item)
 	if item:find("^group:") then
 		if item:find("wool$") or item:find("dye$") then
-			item = item:match("[^,:]+$")..":white"
-		elseif minetest.registered_items["default:"..item:match("[^,:]+$")] then
+			item = item:sub(7)..":white"
+		elseif minetest.registered_items["default:"..item:sub(7)] then
 			item = item:gsub("group:", "default:")
 		else
 			for node, definition in pairs(minetest.registered_items) do
@@ -217,7 +217,7 @@ function worktable.fields(pos, _, fields)
 	local formspec = meta:to_table().fields.formspec
 	local filter = formspec:match("filter;;([%w_:]+)") or ""
 	local pagenum = tonumber(formspec:match("#FFFF00,(%d+)")) or 1
-	local tab_id = tonumber(formspec:match("tabheader%[.*;(%d+)%;.*]")) or 1
+	local tab_id = tonumber(formspec:match("tabheader%[.*;(%d+)%;.*%]")) or 1
 
 	if fields.back then
 		worktable.formspecs.main(meta)
@@ -248,8 +248,7 @@ function worktable.fields(pos, _, fields)
 		worktable.craftguide_formspec(meta, pagenum, nil, 1, filter, tab_id)
 	else
 		for item in pairs(fields) do
-			if item:match("[%w_]+:[%w_]+") and
-					minetest.get_craft_recipe(item).items then
+			if item:match(".-:") and minetest.get_craft_recipe(item).items then
 				worktable.craftguide_formspec(meta, pagenum, item, 1, filter, tab_id)
 			end
 		end
@@ -262,7 +261,7 @@ function worktable.dig(pos)
 		inv:is_empty("tool") and inv:is_empty("storage")
 end
 
-function worktable.contains(table, element)
+function worktable.allowed(table, element)
 	if table then
 		for _, value in pairs(table) do
 			if value == element then
@@ -282,10 +281,10 @@ end
 
 function worktable.put(pos, listname, _, stack)
 	local stackname = stack:get_name()
-	local mod, node = stackname:match("([%w_]+):([%w_]+)")
+	local mod, node = stackname:match("(.*):(.*)")
 
 	if (listname == "tool" and stack:get_wear() > 0 and stackname ~= "xdecor:hammer") or
-			(listname == "input" and worktable.contains(nodes[mod], node)) or
+			(listname == "input" and worktable.allowed(nodes[mod], node)) or
 			(listname == "hammer" and stackname == "xdecor:hammer") or
 			listname == "storage" or listname == "trash" then
 		if listname == "trash" then trash_delete(pos) end
@@ -306,9 +305,11 @@ function worktable.take(pos, listname, _, stack, player)
 	return stack:get_count()
 end
 
-function worktable.move(pos, from_list, _, to_list, _, count)
-	if (from_list == "storage" and to_list == "storage") or to_list == "trash" then
-		if to_list == "trash" then trash_delete(pos) end
+function worktable.move(pos, _, _, to_list, _, count)
+	if to_list == "storage" then
+		return count
+	elseif to_list == "trash" then
+		trash_delete(pos)
 		return count
 	end
 	return 0