如何在正则表达式中区分具有相同格式的捕获组

Question

I'm going through several log entires in one log file and each of them contain this line:

Completed in 0.00023 (4328 reqs/sec) | Rendering: 0.00010 (45%) | DB: 0.00000 (0%)

My capture groups are:

0.00023 (4328 reqs/sec)
0.00010 (45%)
0.00000 (0%)

I need to parse each log entry and store the parsed values inside a database.

Example:

       cycle_time        |  render-time   |  active_record 
                         |                | 
 0.00023 (4328 reqs/sec) |  0.00010 (45%) |     0.00000 (0%)
                         |                |

I'm using regex to parse them but my problem is I can't differentiate the values from each other since they almost have the same format. I currently use this regex expression:

\d\.\d{5}\s\(\d{1,2}\%\)

However, it only captures the values of render_time and active_record and it can't even differentiate between the two. Any ideas?

Answer 1

You could try something like:

((?<=Completed in ).+?(?= \|)).*((?<=Rendering: ).+?(?= \|)).*((?<=DB: ).*)$

Which will give you 3 groups that you can then store separately into your database:

 1. 0.00023 (4328 reqs/sec)
 2. 0.00010 (45%)
 3. 0.00000 (0%)