directory separator?

[PA <petite.abeille@...>]

Hello,

What would be a reasonable way to guess the directory separator (e.g. / 
or \) from a Lua script?
Presently, I'm parsing the package.path, but perhaps there is a more 
reliable way to achieve this?
print( package.path:match( "(%p)%?%." ) )

> /

I noticed a LUA_DIRSEP in luaconf.h. Is that accessible from a Lua 
script? Some of this information seems to be pushed into package.config 
by loadlib.c:
config  /
;
?
!
-

Would it be reckless to rely on this undocumented (?) package.config 
string?
Thanks.

PA.