diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
deleted file mode 100644
index f7c7672..0000000
--- a/.github/FUNDING.yml
+++ /dev/null
@@ -1 +0,0 @@
-github: rxi
diff --git a/LICENSE b/LICENSE
index 9eb37b1..4a9c7ba 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,5 +1,4 @@
-Copyright (c) 2020 rxi
-
+Copyright (c) 2020 rxi (v0.1.2) edit by DarhangeR (v0.1.4)
 
 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
diff --git a/json.lua b/json.lua
index c77a82f..632e805 100644
--- a/json.lua
+++ b/json.lua
@@ -1,4 +1,29 @@
-local json = { _version = "0.1.3" }
+--
+-- json.lua
+--
+-- Copyright (c) 2020 rxi (v0.1.2) edit by DarhangeR (v0.1.4)
+--
+-- 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.
+--
+
+local pairs, string_format, error, rawget, next, string_char, type, ipairs, table_concat, tostring, select, tonumber = pairs, string.format, error, rawget, next, string.char, type, ipairs, table.concat, tostring, select, tonumber
+local json = { _version = "0.1.4" };
 
 -------------------------------------------------------------------------------
 -- Encode
@@ -14,114 +39,109 @@ local escape_char_map = {
   [ "\n" ] = "n",
   [ "\r" ] = "r",
   [ "\t" ] = "t",
-}
+};
 
 local escape_char_map_inv = { [ "/" ] = "/" }
 for k, v in pairs(escape_char_map) do
-  escape_char_map_inv[v] = k
-end
-
+	escape_char_map_inv[v] = k;
+end;
 
 local function escape_char(c)
-  return "\\" .. (escape_char_map[c] or string.format("u%04x", c:byte()))
-end
+	return "\\" .. (escape_char_map[c] or string_format("u%04x", c:byte()));
+end;
 
+local function encode_nil(rope)
+	rope[#rope + 1] = "null"
+end;
 
-local function encode_nil(val)
-  return "null"
-end
-
-
-local function encode_table(val, stack)
-  local res = {}
-  stack = stack or {}
-
-  -- Circular reference?
-  if stack[val] then error("circular reference") end
-
-  stack[val] = true
-  -- Check whether to treat as a array or object
-  local array = true
-  local length = 0
-	local nLen = 0
-  for k,v in pairs(val) do
-		if (type(k) ~= "number" or k<=0) and not (k == "n" and type(v) == "number") then
-			array = nil
-			break	-- Treat as object
-		else
-			if k > length then 
-				length = k
+local function encode_table(rope, val, stack)
+	-- Circular reference?
+	if stack[val] then error("circular reference") end
+		stack[val] = true
+	if rawget(val, 1) ~= nil or next(val) == nil then
+		-- Treat as array -- check keys are valid and it is not sparse
+		local n = 0;
+		for k in pairs(val) do
+			if type(k) ~= "number" then
+				error("invalid table: mixed or invalid key types")
 			end
-			if k == "n" and type(v) == "number" then
-				nLen = v
+			n = n + 1
+		end
+		if n ~= #val then
+			error("invalid table: sparse array")
+		end
+		-- Encode
+		rope[#rope + 1] = "["
+		for i, v in ipairs(val) do
+		if i > 1 then
+			rope[#rope + 1] = ","
+		end
+			encode(rope, v, stack)
+		end
+		rope[#rope + 1] = "]"
+	else
+		-- Treat as an object
+		rope[#rope + 1] = "{"
+		local first = true;
+		for k, v in pairs(val) do
+			if type(k) ~= "string" then
+				error("invalid table: mixed or invalid key types")
 			end
+			if not first then
+				rope[#rope + 1] = ","
+			end
+			encode(rope, k, stack)
+			rope[#rope + 1] = ":"
+			encode(rope, v, stack)
+			first = false
 		end
-  end
+		rope[#rope + 1] = "}"
+	end
+	stack[val] = nil
+end;
 
-  if array then
-		if nLen > length then
-			length = nLen
-		end
-    -- Encode
-    for i = 1, length do
-      table.insert(res, encode(val[i], stack))
-    end
-    stack[val] = nil
-    return "[" .. table.concat(res, ",") .. "]"
+local function encode_string(rope, val)
+	rope[#rope + 1] = '"'
+	rope[#rope + 1] = val:gsub('[%z\1-\31\\"]', escape_char)
+	rope[#rope + 1] = '"'
+end;
 
-  else
-    -- Treat as an object
-    for k, v in pairs(val) do
-	--[[
-      if type(k) ~= "string" then
-        error("invalid table: mixed or invalid key types")
-      end
-	  ]]
-      table.insert(res, encode(k, stack) .. ":" .. encode(v, stack))
-    end
-    stack[val] = nil
-    return "{" .. table.concat(res, ",") .. "}"
-  end
-end
-
-
-local function encode_string(val)
-  return '"' .. val:gsub('[%z\1-\31\\"]', escape_char) .. '"'
-end
-
-
-local function encode_number(val)
-  -- Check for NaN, -inf and inf
-  if val ~= val or val <= -math.huge or val >= math.huge then
-    error("unexpected number value '" .. tostring(val) .. "'")
-  end
-  return tostring(val)
-end
+local function encode_number(rope, val)
+	-- Check for NaN, -inf and inf
+	if val ~= val or val <= -math.huge or val >= math.huge then
+		error("unexpected number value '" .. tostring(val) .. "'")
+	end
+	-- See www.cs.berkeley.edu/~wkahan/ieee754status/IEEE754.PDF
+	-- 17 digits suffice to losslessly represent 64-bit IEEE754 floats
+	rope[#rope + 1] = ("%.17g"):format(val)
+end;
 
+local function encode_boolean(rope, val)
+	rope[#rope + 1] = val and "true" or "false"
+end;
 
 local type_func_map = {
   [ "nil"     ] = encode_nil,
   [ "table"   ] = encode_table,
   [ "string"  ] = encode_string,
   [ "number"  ] = encode_number,
-  [ "boolean" ] = tostring,
-}
-
-
-encode = function(val, stack)
-  local t = type(val)
-  local f = type_func_map[t]
-  if f then
-    return f(val, stack)
-  end
-  error("unexpected type '" .. t .. "'")
-end
+  [ "boolean" ] = encode_boolean,
+};
 
+function encode(rope, val, stack)
+	local t = type(val)
+	local encoder = type_func_map[t]
+	if encoder then
+		return encoder(rope, val, stack)
+	end
+	error("unexpected type '" .. t .. "'")
+end;
 
 function json.encode(val)
-  return ( encode(val) )
-end
-
+	local rope = {}
+	encode(rope, val, {})
+	return table_concat(rope);
+end;
 
 -------------------------------------------------------------------------------
 -- Decode
@@ -130,245 +150,236 @@ end
 local parse
 
 local function create_set(...)
-  local res = {}
-  for i = 1, select("#", ...) do
-    res[ select(i, ...) ] = true
-  end
-  return res
+	local res = {};
+	for i = 1, select("#", ...) do
+		res[ select(i, ...) ] = true
+	end
+	return res;
 end
 
-local space_chars   = create_set(" ", "\t", "\r", "\n")
-local delim_chars   = create_set(" ", "\t", "\r", "\n", "]", "}", ",")
-local escape_chars  = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u")
-local literals      = create_set("true", "false", "null")
+local space_chars   = create_set(" ", "\t", "\r", "\n");
+local delim_chars   = create_set(" ", "\t", "\r", "\n", "]", "}", ",");
+local escape_chars  = create_set("\\", "/", '"', "b", "f", "n", "r", "t", "u");
+local literals      = create_set("true", "false", "null");
 
 local literal_map = {
   [ "true"  ] = true,
   [ "false" ] = false,
   [ "null"  ] = nil,
-}
-
+};
 
 local function next_char(str, idx, set, negate)
-  for i = idx, #str do
-    if set[str:sub(i, i)] ~= negate then
-      return i
-    end
-  end
-  return #str + 1
-end
-
+	for i = idx, #str do
+		if set[str:sub(i, i)] ~= negate then
+			return i
+		end
+	end
+	return #str + 1;
+end;
 
 local function decode_error(str, idx, msg)
-  local line_count = 1
-  local col_count = 1
-  for i = 1, idx - 1 do
-    col_count = col_count + 1
-    if str:sub(i, i) == "\n" then
-      line_count = line_count + 1
-      col_count = 1
-    end
-  end
-  error( string.format("%s at line %d col %d", msg, line_count, col_count) )
-end
-
+	local line_count = 1
+	local col_count = 1
+	for i = 1, idx - 1 do
+		col_count = col_count + 1
+		if str:sub(i, i) == "\n" then
+			line_count = line_count + 1
+			col_count = 1
+		end
+	end
+	error(string_format("%s at line %d col %d", msg, line_count, col_count))
+end;
 
 local function codepoint_to_utf8(n)
-  -- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
-  local f = math.floor
-  if n <= 0x7f then
-    return string.char(n)
-  elseif n <= 0x7ff then
-    return string.char(f(n / 64) + 192, n % 64 + 128)
-  elseif n <= 0xffff then
-    return string.char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
-  elseif n <= 0x10ffff then
-    return string.char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
-                       f(n % 4096 / 64) + 128, n % 64 + 128)
-  end
-  error( string.format("invalid unicode codepoint '%x'", n) )
-end
-
+	-- http://scripts.sil.org/cms/scripts/page.php?site_id=nrsi&id=iws-appendixa
+	local f = math.floor;
+	if n <= 0x7f then
+		return string_char(n)
+elseif n <= 0x7ff then
+		return string_char(f(n / 64) + 192, n % 64 + 128)
+elseif n <= 0xffff then
+		return string_char(f(n / 4096) + 224, f(n % 4096 / 64) + 128, n % 64 + 128)
+elseif n <= 0x10ffff then
+		return string_char(f(n / 262144) + 240, f(n % 262144 / 4096) + 128,
+        f(n % 4096 / 64) + 128, n % 64 + 128)
+	end
+	error( string_format("invalid unicode codepoint '%x'", n) )
+end;
 
 local function parse_unicode_escape(s)
-  local n1 = tonumber( s:sub(1, 4),  16 )
-  local n2 = tonumber( s:sub(7, 10), 16 )
-   -- Surrogate pair?
-  if n2 then
-    return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000)
-  else
-    return codepoint_to_utf8(n1)
-  end
-end
-
+	local n1 = tonumber(s:sub(1, 4), 16);
+	local n2 = tonumber(s:sub(7, 10), 16);
+	-- Surrogate pair?
+	if n2 then
+		return codepoint_to_utf8((n1 - 0xd800) * 0x400 + (n2 - 0xdc00) + 0x10000);
+	else
+		return codepoint_to_utf8(n1);
+	end
+end;
 
 local function parse_string(str, i)
-  local res = {}
-  local j = i + 1
-  local k = j
-
-  while j <= #str do
-    local x = str:byte(j)
-
-    if x < 32 then
-      decode_error(str, j, "control character in string")
+	local res = {};
+	local j = i + 1;
+	local k = j;
 
+	while j <= #str do
+		local x = str:byte(j);
+		if x < 32 then
+			decode_error(str, j, "control character in string")
     elseif x == 92 then -- `\`: Escape
-      table.insert(res, str:sub(k, j - 1))
-      j = j + 1
-      local c = str:sub(j, j)
-      if c == "u" then
-        local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
-                 or str:match("^%x%x%x%x", j + 1)
-                 or decode_error(str, j - 1, "invalid unicode escape in string")
-        table.insert(res, parse_unicode_escape(hex))
-        j = j + #hex
-      else
-        if not escape_chars[c] then
-          decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
-        end
-        table.insert(res, escape_char_map_inv[c])
-      end
-      k = j + 1
-
-    elseif x == 34 then -- `"`: End of string
-		table.insert(res, str:sub(k, j - 1))
-		return table.concat(res), j + 1
-    end
-
-    j = j + 1
-  end
-
-  decode_error(str, i, "expected closing quote for string")
-end
-
+			res[#res + 1] = str:sub(k, j - 1)
+			j = j + 1
+			local c = str:sub(j, j)
+			if c == "u" then
+				local hex = str:match("^[dD][89aAbB]%x%x\\u%x%x%x%x", j + 1)
+				or str:match("^%x%x%x%x", j + 1)
+				or decode_error(str, j - 1, "invalid unicode escape in string")
+				res[#res + 1] = parse_unicode_escape(hex)
+				j = j + #hex
+			else
+				if not escape_chars[c] then
+					decode_error(str, j - 1, "invalid escape char '" .. c .. "' in string")
+				end
+				res[#res + 1] = escape_char_map_inv[c]
+			end
+			k = j + 1
+	elseif x == 34 then -- `"`: End of string
+			res[#res + 1] = str:sub(k, j - 1)
+			return table_concat(res), j + 1
+		end
+		j = j + 1
+	end
+	decode_error(str, i, "expected closing quote for string")
+	return table_concat(res);
+end;
 
 local function parse_number(str, i)
-  local x = next_char(str, i, delim_chars)
-  local s = str:sub(i, x - 1)
-  local n = tonumber(s)
-  if not n then
-    decode_error(str, i, "invalid number '" .. s .. "'")
-  end
-  return n, x
-end
-
+	local x = next_char(str, i, delim_chars);
+	local s = str:sub(i, x - 1);
+	local n = tonumber(s);
+	if not n then
+		decode_error(str, i, "invalid number '" .. s .. "'")
+	end
+	return n, x;
+end;
 
 local function parse_literal(str, i)
-  local x = next_char(str, i, delim_chars)
-  local word = str:sub(i, x - 1)
-  if not literals[word] then
-    decode_error(str, i, "invalid literal '" .. word .. "'")
-  end
-  return literal_map[word], x
-end
-
+	local x = next_char(str, i, delim_chars)
+	local word = str:sub(i, x - 1)
+	if not literals[word] then
+		decode_error(str, i, "invalid literal '" .. word .. "'")
+	end
+	return literal_map[word], x;
+end;
 
 local function parse_array(str, i)
-  local res = {}
-  local n = 1
-  i = i + 1
-  while 1 do
-    local x
-    i = next_char(str, i, space_chars, true)
-    -- Empty / end of array?
-    if str:sub(i, i) == "]" then
-      i = i + 1
-      break
-    end
-    -- Read token
-    x, i = parse(str, i)
-    res[n] = x
-    n = n + 1
-    -- Next token
-    i = next_char(str, i, space_chars, true)
-    local chr = str:sub(i, i)
-    i = i + 1
-    if chr == "]" then break end
-    if chr ~= "," then decode_error(str, i, "expected ']' or ','") end
-  end
-  return res, i
-end
-
+	local res = {};
+	local n = 1;
+	i = i + 1
+	while 1 do
+		local x;
+		i = next_char(str, i, space_chars, true)
+		-- Empty / end of array?
+		if str:sub(i, i) == "]" then
+			i = i + 1
+			break;
+		end
+		-- Read token
+		x, i = parse(str, i)
+		res[n] = x
+		n = n + 1
+		-- Next token
+		i = next_char(str, i, space_chars, true)
+		local chr = str:sub(i, i);
+		i = i + 1
+		if chr == "]" then 
+			break; 
+		end
+		if chr ~= "," then 
+			decode_error(str, i, "expected ']' or ','") 
+		end
+	end
+	return res, i;
+end;
 
 local function parse_object(str, i)
-  local res = {}
-  i = i + 1
-  while 1 do
-    local key, val
-    i = next_char(str, i, space_chars, true)
-    -- Empty / end of object?
-    if str:sub(i, i) == "}" then
-      i = i + 1
-      break
-    end
-    -- Read key
-    if str:sub(i, i) ~= '"' then
-      decode_error(str, i, "expected string for key")
-    end
-    key, i = parse(str, i)
-    -- Read ':' delimiter
-    i = next_char(str, i, space_chars, true)
-    if str:sub(i, i) ~= ":" then
-      decode_error(str, i, "expected ':' after key")
-    end
-    i = next_char(str, i + 1, space_chars, true)
-    -- Read value
-    val, i = parse(str, i)
-    -- Set
-    res[key] = val
-    -- Next token
-    i = next_char(str, i, space_chars, true)
-    local chr = str:sub(i, i)
-    i = i + 1
-    if chr == "}" then break end
-    if chr ~= "," then decode_error(str, i, "expected '}' or ','") end
-  end
-  return res, i
-end
-
+	local res = {};
+	i = i + 1
+	while 1 do
+		local key, val;
+		i = next_char(str, i, space_chars, true)
+		-- Empty / end of object?
+		if str:sub(i, i) == "}" then
+			i = i + 1
+			break;
+		end
+		-- Read key
+		if str:sub(i, i) ~= '"' then
+			decode_error(str, i, "expected string for key")
+		end
+		key, i = parse(str, i)
+		-- Read ':' delimiter
+		i = next_char(str, i, space_chars, true)
+		if str:sub(i, i) ~= ":" then
+			decode_error(str, i, "expected ':' after key")
+		end
+		i = next_char(str, i + 1, space_chars, true)
+		-- Read value
+		val, i = parse(str, i)
+		-- Set
+		res[key] = val
+		-- Next token
+		i = next_char(str, i, space_chars, true)
+		local chr = str:sub(i, i)
+		i = i + 1
+		if chr == "}" then 
+			break; 
+		end
+		if chr ~= "," then 
+			decode_error(str, i, "expected '}' or ','") end
+		end
+	return res, i;
+end;
 
 local char_func_map = {
-  [ '"' ] = parse_string,
-  [ "0" ] = parse_number,
-  [ "1" ] = parse_number,
-  [ "2" ] = parse_number,
-  [ "3" ] = parse_number,
-  [ "4" ] = parse_number,
-  [ "5" ] = parse_number,
-  [ "6" ] = parse_number,
-  [ "7" ] = parse_number,
-  [ "8" ] = parse_number,
-  [ "9" ] = parse_number,
-  [ "-" ] = parse_number,
-  [ "t" ] = parse_literal,
-  [ "f" ] = parse_literal,
-  [ "n" ] = parse_literal,
-  [ "[" ] = parse_array,
-  [ "{" ] = parse_object,
-}
-
+	[ '"' ] = parse_string,
+	[ "0" ] = parse_number,
+	[ "1" ] = parse_number,
+	[ "2" ] = parse_number,
+	[ "3" ] = parse_number,
+	[ "4" ] = parse_number,
+	[ "5" ] = parse_number,
+	[ "6" ] = parse_number,
+	[ "7" ] = parse_number,
+	[ "8" ] = parse_number,
+	[ "9" ] = parse_number,
+	[ "-" ] = parse_number,
+	[ "t" ] = parse_literal,
+	[ "f" ] = parse_literal,
+	[ "n" ] = parse_literal,
+	[ "[" ] = parse_array,
+	[ "{" ] = parse_object,
+};
 
 parse = function(str, idx)
-  local chr = str:sub(idx, idx)
-  local f = char_func_map[chr]
-  if f then
-    return f(str, idx)
-  end
-  decode_error(str, idx, "unexpected character '" .. chr .. "'")
-end
-
+	local chr = str:sub(idx, idx);
+	local f = char_func_map[chr];
+	if f then
+		return f(str, idx);
+	end
+	decode_error(str, idx, "unexpected character '" .. chr .. "'");
+end;
 
 function json.decode(str)
-  if type(str) ~= "string" then
-    error("expected argument of type string, got " .. type(str))
-  end
-  local res, idx = parse(str, next_char(str, 1, space_chars, true))
-  idx = next_char(str, idx, space_chars, true)
-  if idx <= #str then
-    decode_error(str, idx, "trailing garbage")
-  end
-  return res
-end
+	if type(str) ~= "string" then
+		error("expected argument of type string, got " .. type(str));
+	end
+	local res, idx = parse(str, next_char(str, 1, space_chars, true))
+	idx = next_char(str, idx, space_chars, true)
+	if idx <= #str then
+		decode_error(str, idx, "trailing garbage")
+	end
+	return res;
+end;
 
 return json;
\ No newline at end of file