Add a hint about search.useRipgrep?

[imba-tjd]

Hi. In
https://github.com/Microsoft/vscode-docs/blob/master/docs/editor/codebasics.md#search-across-files

VS Code does support regular expression searches, however, backreferences, lookaround, and multiline matches are not supported. This is because VS Code depends on the search tool ripgrep, which, while extremely fast, doesn't support these advanced regex features.

But I see VSC has a search.useRipgrep option. If it is set to false, VSC seems support those advance search options. Shall we add a hint about it?

Besides, there are a search.useRipgrep option and a searchrg.enable option, which make me confused...
Thanks.

[roblourens]

I keep trying to remove the old non-ripgrep search. I'm also working on allowing extensions to contribute their own search provider: microsoft/vscode#47058. With that API, someone can implement an extension for search that supports all the advanced regex features.

Thanks for the suggestion but I don't want to encourage anyone else to depend on search.useRipgrep for now. And searchrg.enable is temporary for switching between the builtin search and the "experimental" search that uses the SearchProvider api.

[AlexFiliakov]

search.useRipgrep doesn't work anymore

"search.useRipgrep": false; // doesn't give lookahead

The advice in microsoft/vscode#24626 is outdated.

[roblourens]

It works for me? But, don't count on search.useRipgrep, it will probably be removed soon.