A library for Lua 5.3, written with the help of the cb0r library, that just returns a function to decode a basic CBOR value at an index in a string, and return the Lua value and one-based index after the CBOR object, all that is necessary to implement a CBOR sequence decoder.
I created this because I was reading CBOR sequences more than 2 gigabytes long (Wikimedia XML page dumps converted to CBOR) and I wanted to decode it faster than the pure- or part-Lua libraries on LuaRocks can do.
It can be compiled with a GCC incantation similar to the following, once the cb0r library is downloaded and the path to its src
directory is put in, in place of path/to/cb0r/src:
gcc -shared -fPIC -Wall -Wextra -Wno-implicit-fallthrough -O3 -fwrapv -I path/to/cb0r/src -llua5.3 -lm path/to/cb0r/src/cb0r.c lua-cb0r.c -o cb0r.so