What is “peg” Package?

Program to perform pattern matching on text
For more details: http://piumarta.com/software/peg/

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 peg.

  brew install peg

Now, use peg!