Getopt and its brethren in other languages are starting to get long in the tooth. Modern CLI tools need more flexible parsing.

Would you care to offer some comments about their shortcomings? I'm a command-line toolings creator and are not familiar with your criticism.

I am using clap [1] for my rust projects, and I am using kong [2] for my golang projects. Both offer seemingly endless extensibility in order to handle every imaginable use-case.

1: https://docs.rs/clap/latest/clap/

2: https://github.com/alecthomas/kong?tab=readme-ov-file#introd...