Required positional argument between 2 optional positional args

[ducaale]

I am trying re-implement HTTPie cli using clap-rs/structopt. I was wondering if it is possible to do something like this:

yahc.exe [METHOD] <URL> [REQUEST_ITEM]...

where METHOD is an enum that gets filled with a default value if it fails to parse.

• yahc.exe localhost:3000 -> method = get, url = localhost:3000, request_item = []
• yahc.exe get -> method = get, url = error
• yahc.exe get localhost:3000 -> method = get, url = localhost:3000, request_item = []
• yahc.exe hello localhost:3000 -> method = method::Default() , url = hello, request_item = ["localhost:3000"]
• yahc.exe post localhost:3000 -> method = post, url = localhost:3000, request_item = []
• yahc.exe post localhost:3000 a=b d=b -> method = post, url = localhost:3000, request_item = ["a=b", "d=b"]

What I have tried so far but didn't work

• AllowMissingPositional can only be used when the last positional argument is required
• optional subcommands cannot be followed by positional args if omitted

[CreepySkeleton]

Nope. This is a limitation of the parser algorithm itself.

[CreepySkeleton]

I'm looking forward to developing a different one, but it won't happen any time soon. Not before 3.0.

[pksunkara]

Can you please create an issue requesting this feature please?