RipGrep doesn't have some very useful PCRE features. https://github.com/BurntSushi/ripgrep#why-shouldnt-i-use-ripgrep https://github.com/BurntSushi/ripgrep#why

RipGrep doesn't have some very useful PCRE features. https://github.com/BurntSushi/ripgrep#why-shouldnt-i-use-ripgrep https://github.com/BurntSushi/ripgrep#why-shouldnt-i-use-rip... If you use lookarounds (or often use grep -P), RipGrep may not cover all of your needed use cases. That said, it's very fast for general use.