lemon Package Installation on Mac

About abcde : LALR(1) parser generator like yacc or bison!
More Information: http://www.hwaci.com/sw/lemon/
Steps:

  1. Launch Terminal by pressing command+space, type terminal and hit Enter key.
  2. Run
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null
  3. Install
    brew install lemon

Done!