LuaJIT编写的解析十六进制数据

local ffi = require("ffi")
local bit = require("bit")
local cjson = require("cjson")

-- 定义结构体
ffi.cdef[[
    typedef struct {
        uint16_t value;
    } uint16_t_struct;
]]

-- 读取十六进制数据
local hex_data = "01020304050607080102030405060708"
local data_length = #hex_data / 2

-- 转换为二进制数据
local binary_data = ffi.new("char[?]", data_length)
for i = 0, data_length - 1 do
    binary_data[i] = tonumber("0x" .. string.sub(hex_data, i * 2 + 1, i * 2 + 2))
end

-- 解析uint16_t数据
local data_pointer = ffi.cast("uint16_t_struct*", binary_data)
local uint16_t_array = {}
for i = 0, data_length / ffi.sizeof("uint16_t_struct") - 1 do
    local uint16_t_value = bit.bswap(data_pointer[i].value) -- 处理大小端字节序
    table.insert(uint16_t_array, uint16_t_value)
end

-- 转换为JSON字符串
local json_string = cjson.encode(uint16_t_array)

print(json_string)

$luajit hexdec.lua
[16908288,50593792,84279296,117964800,16908288,50593792,84279296,117964800]