FEEL instead of SFEEL

[rmerkx]

Hi Radec,

I am very happy with this open source implementation and am heavily using it as a generic back end service able to execute DM's from a central repository. Only thing I am missing is being able to use the complete FEEL expression language constructs. Are you considering adding this in the future? In my optinion that would make this implementation a valuable product. How much effort would you need to add this? Would you be interested to work on this (with me)?

Kind regards,
Radoslaw

[adamecr]

Hi @rmerkx , sorry for the late response, I'm quite busy in my day-job and didn't have much time for the hobby coding for a while.
I decided to use S-FEEL as it was quite easy to implement it's syntax within the Dynamic Expresso used as main scripting platform for DMN.Engine.

Full FEEL implementation will mean to implement the complete language grammar and somehow extend the Dynamic Expresso to use it. I'm not saying it's not possible, just didn't want to spend that much effort.

[michaelglasson]

I wonder if it might be possible simply to allow use of Dynamic Expresso to evaluate C# expressions in DMNEngine. If we could do that, we might be able to avoid the large labour of implementing FEEL fully. I am exploring this with someone who is better at .Net and C# than I am. If we come up with something, we will submit an update proposal.

[adamecr]

Hi @michaelglasson , you can use dynamic Expresso. I’ll give you more details in the thread related to arrays #23 within a few days whenever I’ll have a bit of time to prepare some samples