What is “regex-opt” Package?

Perl-compatible regular expression optimizer
For more details: http://bisqwit.iki.fi/source/regexopt.html

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install regex-opt.

  brew install regex-opt

Now, use regex-opt!