luaZ_lookahead    496 lib/lua/ldo.c    int c = luaZ_lookahead(p->z);
luaZ_lookahead     66 lib/lua/lzio.c     if (luaZ_lookahead(z) == EOZ)
luaZ_lookahead     50 lib/lua/lzio.h LUAI_FUNC int luaZ_lookahead (ZIO *z);