Is there a fast way to parse through a large file with regex?

Question

Problem: Very very, large file I need to parse line by line to get 3 values from each line. Everything works but it takes a long time to parse through the whole file. Is it poss

Answer 1

Right now, you recreate your Regex each time you call GetRateLine, which occurs every time you read a line.

If you create a Regex instance once in advance, and then use the non-static Match method, you will save on regex compilation time, which could potentially give you a speed gain.

That being said, it will likely not take you from minutes to seconds...