luaL_Buffer use question

[gz@...]

Hi there,

I am currently investigating the use of a luaL_Buffer for storing data I 
read from some place until all is read an I am ready to return it as a 
string. Whilst basic usage is quite straightforward, I don't quite see 
what I am supposed to do when, during the buildup of a string with a 
luaL_Buffer, an error occurs and I am not interested in it's contents 
anymore and instead want to return something else (like nil + an error 
message). Can I safely abandon the buffer, or do I need to finalize it 
with luaL_pushresult() in any case and just pop the result off the 
stack? If the latter, can I somehow avoid the new string getting 
interned (for speed reasons)? This needs to work with lua 5.1-5.3, in 
case there are any differences in this regard.

Gunnar