Re: string as Lua-data

["D Burgess" <db@...>]

use

int  luaL_loadbuffer (lua_State *L, const char *buff, size_t sz,
                                const char *name);

see auxlib.h
and see auxlib.c for examples of its use. e.g. lua_dobuffer


Michaela Kyavar <michaela.kyavar@gmx.de> wrote:

>Hello!
>
>I've created in C the following string representing data in Lua form:
>
>"
>local treeInfo =
>     {name = "ROOT", type = "t1", numSubs = 1, subs = {
>          {name = "n2", type = "t2", numSubs = 10, subs = {
>               {name = "n3", type = "t3", numSubs = 0, subs = {}},
>               {name = "n4", type = "t4", numSubs = 0, subs = {}},
>               {name = "n5", type = "t5", numSubs = 0, subs = {}},
>               {name = "n6", type = "t6", numSubs = 0, subs = {}},
>               {name = "n7", type = "t7", numSubs = 0, subs = {}},
>               {name = "n8", type = "t8", numSubs = 0, subs = {}},
>               {name = "n9", type = "t9", numSubs = 0, subs = {}},
>               {name = "n10", type = "t10", numSubs = 5, subs = {
>                    {name = "n11", type = "t11", numSubs = 1, subs = {
>                         {name = "n12", type = "t12", numSubs = 3, subs = {
>                              {name = "n13", type = "t13", numSubs = 0, subs
>= {}},
>                              {name = "n14", type = "t14", numSubs = 1, subs
>= {
>                                   {name = "n15", type = "t15", numSubs = 0,
>subs = {}}}},
>                              {name = "n16", type = "t16", numSubs = 2, subs
>= {
>                                   {name = "n17", type = "t17", numSubs = 0,
>subs = {}},
>                                   {name = "n18", type = "t18", numSubs = 1,
>subs = {
>                                        {name = "n19", type = "t19", numSubs
>= 0, subs = {}}}}}}}}}},
>                    {name = "n20", type = "t20", numSubs = 0, subs = {}},
>                    {name = "n21", type = "t21", numSubs = 0, subs = {}},
>                    {name = "n22", type = "t22", numSubs = 0, subs = {}},
>                    {name = "n23", type = "t23", numSubs = 0, subs = {}}}},
>               {name = "n24", type = "t24", numSubs = 0, subs = {}},
>               {name = "n25", type = "t25", numSubs = 0, subs = {}}}}}}
>"
>
>
>This is a C-string, but has the exact representation of nested Lua tables.
>
>My question is:  Is there a "cool" way to easily create a Lua initialized
>table variable out of this, i.e. convert from the string representation to a
>Lua representation?
>
>Of course I could write the data to a file, exactly as above, and read it in
>through the interpreter as a Lua variable.
>Is there a way to do this without resorting to writing / reading files?
>File access is too slow for our purposes.
>
>Thankyou,
>M