回复： How to embed LuaLanes ?

[Liao Yu Lei <dualface@...>]

Sean, thank you very much, i will try it later.
Currently, I am focused on the quick-cocos2d-x (https://github.com/dualface/quick-cocos2d-x) project.


--

Liao Yu Lei
dualface@gmail.com



在 2013年1月27日星期日，下午6:19，Sean Conner 写道：

> It was thus said that the Great dualface once stated:
> > I tried:
> >  
> > extern int luaopen_lanes_core( lua_State* L);
> >  
> > int lanes_core_loader(lua_State* L)
> > {
> > lua_pushliteral(L, "lanes.core");
> > luaopen_lanes_core(L);
> > return 1;
> > }
> >  
> > lua_getglobal(L, "package");
> > lua_getfield(L, -1, "preload");
> > lua_pushcfunction(L, lanes_core_loader);
> > lua_setfield(L, -2, "lanes.core");
> > lua_pop(L, 2);
> >  
> > ----------------------------------------
> >  
> > test.lua:
> >  
> > local lanes = require("lanes").configure()
> >  
> >  
> > get error:
> >  
> > lanes.lua:120: main: function 'package.preload.lanes.core' not found
> > in Keeper #1 destination transfer database.
> >  
> > ----------------------------------------
> >  
> > Hoping to get help, thanks.
>  
> This isn't LuaLanes, but I have embedded LPeg, re, LuaXML and cURL (Lua
> wrapper for curl) in a statically compiled program (for use at work). The
> code looks something like:
>  
> int luaopen_lpeg (lua_State *);
> int luaopen_LuaXML_lib (lua_State *);
> int luaopen_cURL (lua_State *);
>  
> /*---------------------------------------------------------------------------
> ; the following is Lua code. The tool chain I use creates a C file from a
> ; bunch of Lua code with the following defintions that is linked in with the
> ; rest of the code.
> ;----------------------------------------------------------------------------*/
>  
> extern const char c_re[];
> extern const size_t c_re_size;
> extern const char c_LuaXml[];
> extern const size_t c_LuaXml_size;
> extern const char c_util[]; /* some misc. code */
> extern const size_t c_util_size;
>  
> /*---------------------------------------------------------------------------
> ; the following code assumes a freshly created Lua state is being passed in.
> ;----------------------------------------------------------------------------*/
>  
> void preload_lua(lua_State *L)
> {
> luaL_openlibs(L);
>  
> /*----------------------------------------------------------------
> ; the following modules, due to the way they're written, need to be
> ; "preloaded" into the package.preload table. The normal method of
> ; module initiation (see below) will cause the program to fail.
> ;-------------------------------------------------------------------*/
>  
> lua_getglobal(L,"package");
> lua_getfield(L,-1,"preload");
> luaL_loadbuffer(L,c_re,c_re_size,"re");
> lua_setfield(L,-2,"re");
> luaL_loadbuffer(L,c_LuaXml,c_LuaXml_size,"LuaXml");
> lua_setfield(L,-2,"LuaXml");
> lua_pop(L,2);
>  
> /*----------------------------------------------------------
> ; because of the way that LuaXML works, we need to also set
> ; package.loaded.LuaXML_lib  
> ;----------------------------------------------------------*/
>  
> luaopen_LuaXML_lib(L);
> lua_getglobal(L,"package");
> lua_getfield(L,-1,"loaded");
> lua_pushvalue(L,-3);
> lua_setfield(L,-2,"LuaXML_lib");
> lua_pop(L,3);
>  
> /*----------------------------------------------------------
> ; we resume with more sanely written modules.
> ;-----------------------------------------------------------*/
>  
> luaopen_lpeg(L);
> luaopen_cURL(L);
>  
> luaL_loadbuffer(L,c_util,c_util_size,"util");
> lua_call(L,0,0);
>  
> lua_settop(L,0);
> }
>  
> I found that I had to play around with how the modules are "loaded", but I
> did not have to change any of the code for LPeg, re, LuaXML or cURL (they're
> left, "as is"). In the scripts I write, I can use require all I want with
> no issues.
>  
> -spc (In fact, there are more modules in use than the ones shown here, but
> they all either end up in package,preloaded or under the "more
> sanely written" stanza. Hope this helps some ... )