Easy User code injection

[Laeeth Isharc via Digitalmars-d]

On Sunday, 3 April 2016 at 20:51:47 UTC, Patience wrote:
> One problem with many applications is they are static once 
> compiled in the following sense:
>
> [...]

Lua is pretty easy to embed, either via C or LuaD.  Great for 
config files or more complex modification of behaviour, and 
LuaJIT is fast enough for most things (just try to write 
interface do you don't call from inner loop).  LuaD has some 
rough edges but is very usable.