How to Handle EDIFACT files using open PI adapter

Dear Members,

We have a requirement to read and post the data in EDI format. For this requirement we are going to use PI open resource adapter.

They have provided the attached sample files, i have gone through those files and i feel that the structure is not well organised and

in b/w the fields i find "+", ":", " ' " " .", i want to know how can i segregate and identify the fields.

since i'm working for the first time on EDIFACT and open source adapter i'm not sure how to handle them in PI.

Can we achieve this with the help of standard functions available or need to write UDF's?

Please suggest the approach and the way to handle it in PI.

Regards

Bhargava Krishna