Install lua5.3 + Cjson under Mac

Installation of 1.lua 5.3

Go directly to the website to download

Http://www.lua.org/ftp/lua-5.3.3.tar.gz

Make Macosxsudo make install

2.CSJON

Compile the Lua-cjson library, with the Cloud Fork after the modified support Lua53 integer64 Library, Portal: Lua-cjson Library

Https://github.com/cloudwu/lua-cjson

Version: Lua Cjson 2.1

Changes to Makefile:

Lua_version = 5.3 #注意你的lua版本, you can use LUA-V to see the decimal point after one of my version is

Lua 5.3.1 Copyright (C) 1994-2013 lua.org, Puc-rio

PREFIX =/usr/local prefix path, installing LUA with make install, you can cd/usr/local to this path to see if there is a related library of Lua

Original: Cjson_ldflags =-shared

Change: cjson_ldflags =-bundle-undefined dynamic_lookup

Here is the difference between OSX and UNIX, the bundle is the file format used by Mac, which may cause "multiple LUA VMS detected" error if these options are not used

Add to:

Cjson_cflags + =-duse_internal_fpconv

Cjson_cflags + =-dieee_big_endian

Cjson_cflags + =-pthread-dmultiple_threads

Sample code

Parsing JSON

local cjson = require "cjson"local sampleJson = [[{"age":"23","testArray":{"array":[8,9,11,14,25]},"Himi":"himigame.com"}]];--解析json字符串local data = cjson.decode(sampleJson);--打印json字符串中的age字段print(data["age"]);--打印数组中的第一个值(lua默认是从0开始计数)print(data["testArray"]["array"][1]); 

Encoding JSON

Local Cjson = require"Cjson" local rettable = {}; --The resulting JSON table--sequential values local Intdatas = {};intdatas[1] =100;intdatas[2] ="100";--array local arydatas = {};arydatas[1] = {};arydatas[1]["Key 11"] ="Value one"; arydatas[1]["Key 12"] ="Value"; arydatas[2] = {};arydatas[2]["Key 21"] ="Value"; arydatas[2]["Key 22"] ="Value 22";--Table Assignment Value rettable["Key 1"] = "value 1"; Rettable[2] = 123;retTable[< Span class= "hljs-string" > "Int_datas"] = Intdatas;rettable[ "Arydatas"] = arydatas;-- Encode the table data into a JSON string local JSONSTR = Cjson.encode (rettable);p rint (JSONSTR);-the result is: {100, ""], "2": 123, "Key 1":  "value 1",  "Arydatas": [{ "key: " value ",  "key All":  "value One"},{ "key 21":  "value",  "key: " value "}]}     

Install lua5.3 + Cjson under Mac