CommandLineUtils: Support multi-parameter escape sequences in AnsiConsole

[bricelam]

Instead of combining parameters like \x1b[1;37m, I'm forced to split them into two sequences: \x1b[1m\x1b[37m. We should support the semicolon-separated syntax.

[muratg]

Feel free to send a PR. BTW, this is now a sources package. :)

[bricelam]

@anurse Do you know if this is generally supported where we need it to be? I know bash supports it...

[analogrelay]

I have no idea ;). I believe it is always parsed and converted to ConsoleColor (meaning it's weirdly round-tripped on *nix), but if you want to adjust AnsiConsole to pass the escape sequence through on *nix, I'd be happy to see that ;)

[bricelam]

@anurse Per @BrennanConroy's PR #1724, it does pass-through outside of Windows. 😉 That's why I was wondering if sending semicolon-separated sequences would be OK.

[BrennanConroy]

We'd need to update the parsing in Common Testutils too

[analogrelay]

Ooh, cool. I hadn't seen that PR. Yeah, we should update the Windows parsing then.

[bricelam]

Cool. I did a prototype a while ago at https://gist.github.com/bricelam/39d8cf65f3da684657c9 I also tried to fix some of the strange behavior around bolding.

[BrennanConroy]

That wont work Cross-Plat, you can't do a get on the console color :(

[bricelam]

Hence prototype 😉