128 lines
3.1 KiB
Lua
128 lines
3.1 KiB
Lua
local json = require "json"
|
|
local type = type
|
|
local next = next
|
|
local error = error
|
|
local table_concat = table.concat
|
|
local table_sort = table.sort
|
|
local string_rep = string.rep
|
|
local math_type = math.type
|
|
local setmetatable = setmetatable
|
|
local getmetatable = getmetatable
|
|
|
|
local statusMark
|
|
local statusQue
|
|
local statusDep
|
|
local statusOpt
|
|
|
|
local defaultOpt = {
|
|
newline = "\n",
|
|
indent = " ",
|
|
}
|
|
defaultOpt.__index = defaultOpt
|
|
|
|
local function encode_newline()
|
|
statusQue[#statusQue+1] = statusOpt.newline..string_rep(statusOpt.indent, statusDep)
|
|
end
|
|
|
|
local encode_map = {}
|
|
local encode_string = json._encode_string
|
|
for k ,v in next, json._encode_map do
|
|
encode_map[k] = v
|
|
end
|
|
|
|
local function encode(v)
|
|
local res = encode_map[type(v)](v)
|
|
statusQue[#statusQue+1] = res
|
|
end
|
|
|
|
function encode_map.string(v)
|
|
statusQue[#statusQue+1] = '"'
|
|
statusQue[#statusQue+1] = encode_string(v)
|
|
return '"'
|
|
end
|
|
|
|
function encode_map.table(t)
|
|
local first_val = next(t)
|
|
if first_val == nil then
|
|
if getmetatable(t) == json.object then
|
|
return "{}"
|
|
else
|
|
return "[]"
|
|
end
|
|
end
|
|
if statusMark[t] then
|
|
error("circular reference")
|
|
end
|
|
statusMark[t] = true
|
|
if type(first_val) == 'string' then
|
|
local key = {}
|
|
for k in next, t do
|
|
if type(k) ~= "string" then
|
|
error("invalid table: mixed or invalid key types")
|
|
end
|
|
key[#key+1] = k
|
|
end
|
|
table_sort(key)
|
|
statusQue[#statusQue+1] = "{"
|
|
statusDep = statusDep + 1
|
|
encode_newline()
|
|
local k = key[1]
|
|
statusQue[#statusQue+1] = '"'
|
|
statusQue[#statusQue+1] = encode_string(k)
|
|
statusQue[#statusQue+1] = '": '
|
|
encode(t[k])
|
|
for i = 2, #key do
|
|
local k = key[i]
|
|
statusQue[#statusQue+1] = ","
|
|
encode_newline()
|
|
statusQue[#statusQue+1] = '"'
|
|
statusQue[#statusQue+1] = encode_string(k)
|
|
statusQue[#statusQue+1] = '": '
|
|
encode(t[k])
|
|
end
|
|
statusDep = statusDep - 1
|
|
encode_newline()
|
|
statusMark[t] = nil
|
|
return "}"
|
|
else
|
|
local max = 0
|
|
for k in next, t do
|
|
if math_type(k) ~= "integer" or k <= 0 then
|
|
error("invalid table: mixed or invalid key types")
|
|
end
|
|
if max < k then
|
|
max = k
|
|
end
|
|
end
|
|
statusQue[#statusQue+1] = "["
|
|
statusDep = statusDep + 1
|
|
encode_newline()
|
|
encode(t[1])
|
|
for i = 2, max do
|
|
statusQue[#statusQue+1] = ","
|
|
encode_newline()
|
|
encode(t[i])
|
|
end
|
|
statusDep = statusDep - 1
|
|
encode_newline()
|
|
statusMark[t] = nil
|
|
return "]"
|
|
end
|
|
end
|
|
|
|
local function beautify(v, option)
|
|
if type(v) == "string" then
|
|
v = json.decode(v)
|
|
end
|
|
statusMark = {}
|
|
statusQue = {}
|
|
statusDep = 0
|
|
statusOpt = option and setmetatable(option, defaultOpt) or defaultOpt
|
|
encode(v)
|
|
return table_concat(statusQue)
|
|
end
|
|
|
|
json.beautify = beautify
|
|
|
|
return json
|