Flag Parsers in Various Languages - oilshell/oil GitHub Wiki

Up: Shell Autocompletion

Many of these generate bash completions. It would be nice if they could target Shellac somehow and get support for bash, zsh, fish, Oil, etc.

• Python: argcomplete for the stdlib argparse module
• Go: cobra, has the ability to generate bash completions.
• Rust: clap-rs
• Haskell: bash completion for optparse-applicative
• Ruby: Fylla -- for the Thor command line toolkit
• google gflags for C++, Java, etc. ?