Fexl - a Function Expression Language
Fexl is a simple but powerful functional scripting language. It allows you to manipulate numbers, strings, streams, and functions easily and reliably, all within a secure "sandbox". (Fexl is pronounced fex'-uhl, similar to "pixel".)
| Fexl source code at GitHub | Updated Thu 2025-09-25 |
| Blog | Updated Sun 2023-08-27 |
| Fexl by Example | |
| Technical Introduction to Fexl | Updated Sun 2023-09-03 |
| Guide to configuring a new installation | |
| Guide to control structures in Fexl | |
| Modularity | Updated Mon 2025-05-31 |
| Interfacing with C | Updated Thu 2024-09-05 |
| Big numbers | |
| Modular arithmetic | |
| Opinionated programming | |
| Template expansion | |
| Parsing | |
| Tuples | |
| Porting Fexl to Windows using WSL | Updated Wed 2023-02-08 |