Embedded regex language provider support does not seem to escape regex constructs correctly

[webczat]

Hi, currently using c# extension version 1.23.2 and testing embedded language providers, mainly regex.
If I type that somewhere in code Regex.Match("test", ""); and try to trigger suggestions in the empty quotes of second argument, I see that the regex provider is triggered. Then, if I try to select some backslash suggestion like \s, what I get after pressing enter is just "\s". However, because the string is non verbatim, it should be escaped as "\s"`.

In addition, if I do the same but trigger completion after first typing two backslashes and then select something like \A, I get "\\\A" instead of just "\A".

I believe it does work in vs proper, so reporting it here.

CC: @333fred

[333fred]

We likely need to resolve the edit for this eagerly as well, like we do for doc comment tags.

[333fred]

@JoeRobich can you move this to omnisharp-roslyn?

[JoeRobich]

can you move this to omnisharp-roslyn?

@333fred TIL that I can =)