We often surround out code into separated folders. And we always must write the path to the folder before a file we want to include. You may use -I flag but it is not clearly comfortable. This feature would lead to better code structure and faster include.
#go "output"
// output
#include "helloWorld.h"
#go "messages"
// output/messages
#include "messageData1.h"
#include "messageData2.h"
#exit
#exit
In this example #go means set folder the files are included from. The compiler simply adds "path + '/' before each include. The #exit quit from previous #go block.
These keywords can be nested the same as directories. So the nested #go affect each other. It does not affect at anything else.
Of course any path can be specified:
#go "output/messages"
#include "messageData1.h"
// ...
#exit
if the directory has only alphanumeric characters it can be used without quotes.
#go output
// ...
#exit