Bags can have custom names

src/bags.lua

@@ -1,6 +1,7 @@
 local set_fs = i3.set_fs
 
-IMPORT("S", "ES", "fmt", "msg", "slz", "dslz", "ItemStack")
+IMPORT("get_bag_description", "ItemStack")
+IMPORT("S", "ES", "fmt", "msg", "slz", "dslz")
 IMPORT("get_group", "play_sound", "get_detached_inv", "create_inventory")
 
 local function get_content(content)
@@ -51,6 +52,8 @@ local function init_bags(player)
 
 		on_take = function()
 			data.bag = nil
+			data.bag_rename = nil
+
 			local content = get_detached_inv("bag_content", name)
 			content:set_list("main", {})
 
@@ -67,9 +70,10 @@ local function init_bags(player)
 	local function save_content(inv)
 		local bagstack = bag:get_stack("main", 1)
 		local meta = bagstack:get_meta()
-		meta:set_string("description", "")
+		local desc = get_bag_description(data, bagstack)
 
 		if inv:is_empty"main" then
+			meta:set_string("description", desc)
 			meta:set_string("content", "")
 		else
 			local list = inv:get_list"main"
@@ -87,7 +91,7 @@ local function init_bags(player)
 			local bag_size = get_group(bagstack:get_name(), "bag")
 			local percent = fmt("%d", (c * 100) / (bag_size * 4))
 
-			meta:set_string("description", ES("@1 (@2% full)", bagstack:get_description(), percent))
+			meta:set_string("description", ES("@1 (@2% full)", desc, percent))
 			meta:set_string("content", slz(t))
 		end
 

src/callbacks.lua

@@ -3,8 +3,8 @@ local set_fs = i3.set_fs
 
 IMPORT("vec_eq", "vec_round")
 IMPORT("reg_items", "reg_aliases")
-IMPORT("S", "min", "random", "ItemStack")
 IMPORT("sort", "copy", "insert", "remove", "indexof")
+IMPORT("S", "min", "random", "translate", "ItemStack")
 IMPORT("fmt", "find", "match", "sub", "lower", "split")
 IMPORT("msg", "is_fav", "pos_to_str", "str_to_pos", "add_hud_waypoint", "play_sound", "spawn_item")
 IMPORT("search", "get_sorting_idx", "sort_inventory", "sort_by_category", "get_recipes", "get_detached_inv")
@@ -118,6 +118,7 @@ i3.new_tab("inventory", {
 			data.confirm_trash = nil
 			data.show_settings = nil
 			data.waypoint_see = nil
+			data.bag_rename = nil
 
 		elseif fields.trash then
 			data.show_settings = nil
@@ -175,6 +176,23 @@ i3.new_tab("inventory", {
 		elseif fields.set_home then
 			data.home = pos_to_str(player:get_pos(), 1)
 
+		elseif fields.bag_rename then
+			data.bag_rename = true
+
+		elseif fields.confirm_rename then
+			local bag = get_detached_inv("bag", name)
+			local bagstack = bag:get_stack("main", 1)
+			local meta = bagstack:get_meta()
+			local desc = translate(data.lang_code, bagstack:get_description())
+			local str = desc:match("(.*)%(+") or desc
+			local newname = fields.bag_newname:gsub("([%(%)])", "")
+
+			meta:set_string("description", desc:gsub(str:trim(), newname))
+			bag:set_stack("main", 1, bagstack)
+
+			data.bag = bagstack:to_string()
+			data.bag_rename = nil
+
 		elseif sb_inv and sub(sb_inv, 1, 3) == "CHG" then
 			data.scrbar_inv = tonumber(match(sb_inv, "%d+"))
 			return

src/common.lua

@@ -1,11 +1,13 @@
 local ItemStack = ItemStack
 local loadstring = loadstring
-
+local ESC = core.formspec_escape
+local translate = core.get_translated_string
 local vec_new, vec_add, vec_mul = vector.new, vector.add, vector.multiply
 local sort, concat, insert = table.sort, table.concat, table.insert
 local min, floor, ceil = math.min, math.floor, math.ceil
-local fmt, find, match, gmatch, sub, split, lower =
-	string.format, string.find, string.match, string.gmatch, string.sub, string.split, string.lower
+local fmt, find, match, gmatch, sub, split, lower, upper =
+	string.format, string.find, string.match, string.gmatch,
+	string.sub, string.split, string.lower, string.upper
 
 local old_is_creative_enabled = core.is_creative_enabled
 
@@ -63,6 +65,18 @@ local function round(num, decimal)
 	return floor(num * mul + 0.5) / mul
 end
 
+local function toupper(str)
+	return str:gsub("%f[%w]%l", upper):gsub("_", " ")
+end
+
+local function get_bag_description(data, stack)
+	local desc = translate(data.lang_code, stack:get_description())
+	      desc = desc:match("(.*)%(+") or desc
+	      desc = ESC(toupper(desc:trim()))
+
+	return desc
+end
+
 local function search(data)
 	reset_compression(data)
 
@@ -87,7 +101,7 @@ local function search(data)
 	for i = 1, #data.items_raw do
 		local item = data.items_raw[i]
 		local def = core.registered_items[item]
-		local desc = lower(core.get_translated_string(data.lang_code, def and def.description)) or ""
+		local desc = lower(translate(data.lang_code, def and def.description)) or ""
 		local search_in = fmt("%s %s", item, desc)
 		local temp, j, to_add = {}, 1
 
@@ -648,6 +662,7 @@ local _ = {
 	get_stack = get_stack,
 	craft_stack = craft_stack,
 	get_detached_inv = get_detached_inv,
+	get_bag_description = get_bag_description,
 	create_inventory = core.create_detached_inventory,
 
 	-- Registered items
@@ -672,6 +687,7 @@ local _ = {
 	split = string.split,
 	match = string.match,
 	gmatch = string.gmatch,
+	toupper = toupper,
 
 	-- Table
 	maxn = table.maxn,

src/gui.lua

@@ -9,13 +9,14 @@ local VoxelArea, VoxelManip = VoxelArea, VoxelManip
 IMPORT("clr", "ESC", "check_privs")
 IMPORT("find", "match", "sub", "upper")
 IMPORT("vec_new", "vec_sub", "vec_round")
-IMPORT("S", "ES", "translate", "ItemStack")
 IMPORT("min", "max", "floor", "ceil", "round")
 IMPORT("reg_items", "reg_tools", "reg_entities")
+IMPORT("get_bag_description", "get_detached_inv")
+IMPORT("S", "ES", "translate", "ItemStack", "toupper")
 IMPORT("groups_to_items", "compression_active", "compressible")
 IMPORT("true_str", "is_fav", "is_num", "get_group", "str_to_pos")
 IMPORT("maxn", "sort", "concat", "copy", "insert", "remove", "unpack")
-IMPORT("get_sorting_idx", "is_group", "extract_groups", "item_has_groups", "get_detached_inv")
+IMPORT("get_sorting_idx", "is_group", "extract_groups", "item_has_groups")
 
 local function fmt(elem, ...)
 	if not fs_elements[elem] then
@@ -34,10 +35,6 @@ local function weird_desc(str)
 	return not true_str(str) or find(str, "\n") or not find(str, "%u")
 end
 
-local function toupper(str)
-	return str:gsub("%f[%w]%l", upper):gsub("_", " ")
-end
-
 local function snip(str, limit)
 	return #str > limit and fmt("%s...", sub(str, 1, limit - 3)) or str
 end
@@ -405,12 +402,27 @@ local function get_container(fs, data, player, yoffset, ctn_len, award_list, awa
 			local v = {{1.9, 2, 0.12}, {3.05, 5, 0.06}, {4.2, 10}, {4.75, 10}}
 			local h, m, yy = unpack(v[bag_size])
 
+			local bagstack = bag:get_stack("main", 1)
+			local desc = get_bag_description(data, bagstack)
+
 			fs("image", 0.5, yextra + 1.85, 0.6, 0.6, PNG.arrow_content)
 			fs(fmt("style[bg_content;bgimg=%s;fgimg=i3_blank.png;bgimg_middle=10,%u;sound=]",
 				PNG.bg_content, m))
 			fs("image_button", 1.1, yextra + 0.5 + (yy or 0), 4.75, h, "", "bg_content", "")
-			fs("hypertext", 1.3, yextra + 0.8, 4.3, 0.6, "content",
-				fmt("<global size=16><center><b>%s</b></center>", ES"Content"))
+
+			if not data.bag_rename then
+				fs("hypertext", 1.3, yextra + 0.8, 4.3, 0.6, "content",
+					fmt("<global size=16><center><b>%s</b></center>", desc))
+				fs("image_button", 5.22, yextra + 0.835, 0.25, 0.25, "", "bag_rename", "")
+				fs(fmt("tooltip[%s;%s]", "bag_rename", ES"Rename bag"))
+			else
+				fs("box", 1.7, yextra + 0.82, 2.6, 0.4, "#707070")
+				fs(fmt("field[1.8,%f;2.5,0.4;bag_newname;;%s]", yextra + 0.82, desc),
+				   "field_close_on_enter[bag_newname;false]")
+				fs("hypertext", 4.4, yextra + 0.88, 0.8, 0.5, "confirm_rename",
+					fmt("<global size=16><tag name=action color=#fff hovercolor=%s>" ..
+						"<center><b><action name=ok>OK</action></b></center>", colors.yellow))
+			end
 
 			local x, size, spacing = 1.45, 0.9, 0.12
 

src/styles.lua

@@ -39,6 +39,7 @@ local PNG = {
 	exit = "i3_exit.png",
 	home = "i3_home.png",
 	flag = "i3_flag.png",
+	edit = "i3_edit.png",
 
 	cancel_hover = "i3_cancel.png^\\[brighten",
 	search_hover = "i3_search.png^\\[brighten",
@@ -61,6 +62,7 @@ local PNG = {
 	refresh_hover = "i3_refresh.png^\\[brighten",
 	exit_hover = "i3_exit.png^\\[brighten",
 	home_hover = "i3_home.png^\\[brighten",
+	edit_hover = "i3_edit.png^\\[brighten",
 }
 
 local styles = string.format([[
@@ -82,6 +84,7 @@ local styles = string.format([[
 	style[prev_usage;fgimg=%s;fgimg_hovered=%s]
 	style[next_usage;fgimg=%s;fgimg_hovered=%s]
 	style[waypoint_add;fgimg=%s;fgimg_hovered=%s;content_offset=0]
+	style[bag_rename;fgimg=%s;fgimg_hovered=%s;content_offset=0]
 	style[btn_bag,btn_armor,btn_skins;font=bold;font_size=18;content_offset=0;sound=i3_click]
 	style[craft_rcp,craft_usg;noclip=true;font_size=16;sound=i3_craft;
 	      bgimg=i3_btn9.png;bgimg_hovered=i3_btn9_hovered.png;
@@ -101,7 +104,8 @@ PNG.prev,     PNG.prev_hover,
 PNG.next,     PNG.next_hover,
 PNG.prev,     PNG.prev_hover,
 PNG.next,     PNG.next_hover,
-PNG.add,      PNG.add_hover)
+PNG.add,      PNG.add_hover,
+PNG.edit,     PNG.edit_hover)
 
 local fs_elements = {
 	label = "label[%f,%f;%s]",