Double completion of macros when they are typed completely

[weirdsmiley]

I am using CoC with Vim. The completions work fine when the macro is incomplete. But when the macro is complete (including the last ! character) and then completion is triggered, then it completes the macro twice.

An example is:

Before completion:

fn main() {
    println!<|>
}

After completion:

fn main()
    println!println!(<|>)
}

[lnicola]

This happens in VS Code too.

[Veykril]

I imagine this might be due to ! not being in the trigger character set?

[unexge]

Seems like the problem is ! indeed, println is getting identified as IDENT but println! is getting identified as IDENT + BANG and this causes getting incorrect position to place suggestion. Sending a PR to fix that.