C Lua5.4.6 SDK开发库

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.lua执行

#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"

static int luaopen_ui(lua_State *L)
{
    static const struct luaL_Reg lib_f[] = {% raw %}{{"saveFile", saveFile},{% endraw %}
                                            {"loadFile", loadFile},
                                            {NULL, NULL}};
    luaL_newlib(L, lib_f);  // 导出函数
    return 1;
}

static int saveFile(lua_State *L)
{
    luaL_argcheck(L, doc != nullptr, 1, "invalid user data");
    luaL_checktype(L, -1, LUA_TSTRING);

    auto path = lua_tostring(L, -1);
    return 0;
}

static int loadFile(lua_State *L)
{
    luaL_argcheck(L, doc != nullptr, 1, "invalid user data");
    luaL_checktype(L, -1, LUA_TSTRING);

    auto path = lua_tostring(L, -1);
    return 0;
}

int runOnce(const char *filePath)
{
    lua_State *L = luaL_newstate();
    luaL_openlibs(L);
    // 加载函数
    luaL_getsubtable(L, LUA_REGISTRYINDEX, "_PRELOAD");
    lua_pushcfunction(L, luaopen_ui);
    lua_setfield(L, -2, "ui");
	// lua_pushcfunction(L, luaopen_ui2);
    // lua_setfield(L, -2, "ui2");
    lua_pop(L, 1);
    // 运行文件
    int retLoad = luaL_dofile(L, filePath);
    if (0 != retLoad) {
        const char *sz = lua_tostring(L, -1);
        std::cout << "doLuaFile err:" << retLoad << ", " << sz << std::endl;
    }
    //    lua_error(L);
    lua_close(L);
    return 0;
}

.lua编码

--[[ 
Example:
ui = require("ui")
ui.saveFile("D:/test.bin")
ui.loadFile("D:/test.bin")
--]]

ui = require("ui")
ui.saveFile("D:/out.bin")
print("finish")

参考

The Programming Language Lua

Lua 教程 | 菜鸟教程

https://pengliu.blog.csdn.net/article/details/79963950

https://pengliu.blog.csdn.net/article/details/79975608

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