That's right. IIRC, I wrote it as a simple harness because I wanted to check whether someone could feasibly write a grep tool using the regex crate and get similar performance. Once I got the harness up and running though, I realized it was not only competitive with GNU grep in a larger number of cases than I thought it would be (after some perf bug fixes, IIRC), but was substantially faster than ag. So that's when I decided to polish it up into a tool for others to use.
That's right. IIRC, I wrote it as a simple harness because I wanted to check whether someone could feasibly write a grep tool using the regex crate and get similar performance. Once I got the harness up and running though, I realized it was not only competitive with GNU grep in a larger number of cases than I thought it would be (after some perf bug fixes, IIRC), but was substantially faster than ag. So that's when I decided to polish it up into a tool for others to use.