Document the way to Import/reuse .dl file

[izgzhen]

I am using Souffle and I wonder if it supports "importing" one .dl file inside another one so I can share code between different ".dl" files?

I've read the help message on "-L" and "-I", but they seem not related to the problem I had.

Thanks in advance!

[izgzhen]

Update:

It seems that the following directive works

#include "path/to/x.dl"

I would change the issue to a documentation one. Feel free to close it as well.

[psubotic]

you might want to use #pragma once if you have a large projects to avoid multiple includes -- same rules apply as in C++ as a C-preprocessor is used.

…

On Sat, Mar 7, 2020 at 7:46 PM Zhen Zhang ***@***.***> wrote: Update: It seems that the following directive works #include "path/to/x.dl" I would change the issue to a documentation one. Feel free to close it as well. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#1340?email_source=notifications&email_token=AAC3OOMKO6C4O4BSXGWXZFLRGKI7PA5CNFSM4LDR6SA2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEOECSXQ#issuecomment-596126046>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAC3OOPG3UROJE5MP5E5IADRGKI7PANCNFSM4LDR6SAQ> .

[b-scholz]

We need to document how mcpp works in conjunction with soufflé. Basically, mcpp is a c-preprocessor that is used to expand the source code internally. You can use macros and includes in your Soufflé programs.

[mmcgr]

Our current documentation exists, but is extremely limited:
https://souffle-lang.github.io/tutorial#remarks-on-input-and-c-preprocessor