What is “re2c” Package?

Generate C-based recognizers from regular expressions
For more details: http://re2c.org

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 re2c.

  brew install re2c

Now, use re2c!