======================= lua Lua interpreter

Fetch and build a Lua interpreter. Versions 5.2 through 5.4 are supported. The lua command will be added to NSH. Lua can run a script for a given path, execute a string of code, or open a readline compatible REPL on the NSH console. The <lua.h> and <lauxlib.h> headers are available to start a new embedded interpreter or extend Lua with C modules. See the luamod_hello example for how to include a built-in module.

A math library is required to build. Enable the LIBM config or use a toolchain provided math library.

The following configs are recommended for a full featured Lua interpreter:

• LIBC_FLOATINGPOINT
• SYSTEM_READLINE

Lua modules:

• cjson
• lfs
• luasyslog
• luv