What is “tre” Package?

Lightweight, POSIX-compliant regular expression (regex) library
For more details: https://laurikari.net/tre/

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 tre.

  brew install tre

Now, use tre!