A few years back I was playing with Antlr to build a polynomial evaluator. The result was working but not very sofisticated o particularly good, just a minimal working example. In these days of quarantine in Italy, I decided to get back a that project and try to make something better. The final result can be found at this repo.
2021-09-29 I added an example on how to use ROP in an ASP.NET Core project here
A few days back I was reading about Railway oriented programming (ROP) on the awesome fsharpforfunandprofit website. Scott Wlaschin (SW) describe a functional approach to error handling not regarding only exceptions but in general how to handle deviations from the happy path. I really liked his approach and I tried to translate the F# code to C# and in this post I'll briefly recap what I've learned.
The bottom navigation is a very simple and easy template from Android Studio, the porting took 15 minutes at most and the result is quite appealing.
Last week I was trying for the first time to write a simple app using Xamarin. I wanted a "material design" menu which after some research I understood to be a navigation drawer.