Completion: access to whole input?

[windsource]

When using dynamic completion I have access to the currently typed argument in the custom completer passed to ArgValueCompleter::new.

Would it possible to also get access to the other arguments, that have been entered already? This would help to get dynamic completions in some cases?

Example:

mycmd -a -b somestart + <TAB>

would also provide access to -a -b which can be used to complete somestart.

[epage]

Support for context-aware completions is something we are intentionally holding off on at the moment. Our primary goals are (1) feature parity with the static completions and (2) feature parity with Cargo's completions (our test client for this feature).

This will take a bit of design work. We don't want to expose the literal argv and have people manually re-parse things as that is brittle to get the right policies. Currently ArgMatches isn't design for reuse by this. We'd either need to define a new type or stabilize more ArgMatches behavior.

[AskeyNil]

When will this design work be carried out?

[epage]

There is no clear timeline for this. Our priorities are on parity with clap_complete and parity with Cargo's hand written completions. There are more features after that that will likely have a larger impact before we get to contextual parsing like that.

[AskeyNil]

I currently use multiple command line parsing to try to bypass the context-free association