Interactive mode and tab completion

[CCRcmcpe]

There are some command line programs that are resource intensive to start, most of them provide interactive mode.
My app's interactive mode implementation:

while (true)
{
    Console.Write("> ");
    string? args = Console.ReadLine();
    if (string.IsNullOrWhiteSpace(args))
    {
        Log.Warning("No args entered");
        continue;
    }

    await rootCommand.InvokeAsync(args);
}

But when I try to add tab completion, I get stuck. Currently, there's no public API to acquire suggestions manually and placing them into console. A build-in interactive mode API would be great.

[jonsequitur]

An interactive mode would be pretty nice. Making it work well across different kinds of terminals is why we held off on this for now. A better readline implementation would be a good foundation. Related: dotnet/runtime#52374

FWIW, suggestions can be accessed programmatically. You can see examples here:

command-line-api/src/System.CommandLine.Tests/SuggestionTests.cs

Line 15 in 2557b0c

public class SuggestionTests

[CCRcmcpe]

I didn't notice there is an API, thanks.

[vlada-shubina]

dotnet new as well as the whole dotnet CLI will be benefit as well from interactive mode.
The related issue: dotnet/templating#3267