initial, not working mod

README.md

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+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+# Minetest Game mod: Kiosk
+
+See license.txt for license information.
+
+Main repository:
+
+https://notabug.org/ademant/minetest_kiosk.git
+
+Mirrors:
+
+https://gitlab.com/ademant/minetest_kiosk.git
+
+https://github.com/ademant/minetest_kiosk.git
+
+
+## Short description
+Allows a quite simple trading by selling items via unified_inventory.
+
+## Chat Commands
+Following chat commands are available:
+
+	
+## Usage
+
+## Authors of source code
+
+ademant (MIT)
+
+## Authors of media (textures)
+  
+Created by ademant (CC BY 3.0):

init.lua

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+-- base copied from 3d_armor_ui
+-- support for i18n
+local S = armor_i18n.gettext
+local F = minetest.formspec_escape
+
+if not minetest.global_exists("unified_inventory") then
+	minetest.log("warning", S("Kiosk: Mod loaded but unused."))
+	return
+end
+
+if unified_inventory.sfinv_compat_layer then
+	return
+end
+
+unified_inventory.register_button("kiosk", {
+	type = "image",
+	image = "kiosk_button_128.png",
+	tooltip = S("Kiosk")
+})
+
+unified_inventory.register_page("kiosk", {
+	get_formspec = function(player, perplayer_formspec)
+		local fy = perplayer_formspec.formspec_y
+		local name = player:get_player_name()
+		if armor.def[name].init_time == 0 then
+			return {formspec="label[0,0;"..F(S("Armor not initialized!")).."]"}
+		end
+		local formspec = "label[0,0;"..F(S("Kiosk")).."]"..
+			"list[detached:"..name.."_kiosk;kiosk;0,"..fy..";1,2;]"..
+			"label[5.0,"..(fy + 0.0)..";"..F(S("Buy at")).."]"..
+			"label[5.0,"..(fy + 0.5)..";"..F(S("Sell at")).."]"..
+			"listring[current_player;main]"..
+			"listring[detached:"..name.."_kiosk;kiosk]"
+		return {formspec=formspec}
+	end,
+})

license.txt

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+License of source code
+----------------------
+
+The MIT License (MIT)
+Copyright 2018 ademant
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+For more details:
+https://opensource.org/licenses/mit-license.php
+

mod.conf

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+name = kiosk
+title = kiosk
+author = ademant
+description = Global trading via unified_inventories
+depends = default,basic_functions,unified_inventory
+license = MIT
+version = 1.0.0