feat: add support for rg

[wjdwndud0114]

For live grep, I use rg like: rg --column --line-number --no-heading --color=always --smart-case -- <query> which has color.

Added logic to grab the path for the icon while filtering out the ASCII color codes and keeping everything performant.

[MaartenStaa]

Very nice, thanks for the PR! I'm on vacation right now, and will review in detail when I'm back. One thing I noticed that you could improve is that right now, extract_filepath always allocates, even if there are no escape codes. You could change it to return a Cow<str>. Then, when there are no escape codes in the string, you can just return a Cow::Borrowed.

[wjdwndud0114]

Thank you for the suggestion! This is my first time using Rust and used a lot of chatGPT so there are probably a lot of holes.

Looked into Cow concept, but I think since we are doing a to_lowercase or essentially to_ascii_lowercase for each char, it always allocates? Or would a check for ascii char help before doing the to_ascii_lowercase to keep track of if there was an lowercase mutation?

I could also just add a specific case for my rg usage which is check if the input starts with the color code and extract until the next color code, but that's probably be too specific.

[MaartenStaa]

Right, that's a good point about to_lowercase and always allocating. I'm going to merge this as-is and iterate a bit to see if I can incorporate the Cow. I also want to add some tests and possibly benchmarks, I'll ping you when I add my changes 🙂