sonic-pi

https://github.com/sonic-pi-net/sonic-pi

C++

Code. Music. Live.

Parslet::Atoms::Infix#precedence_climb

A precedence climbing algorithm married to parslet, as described here
  http://eli.thegreenplace.net/2012/08/02/parsing-expressions-by-precedence-climbing/

Source | Google | Stack overflow

Edit

git clone [email protected]:sonic-pi-net/sonic-pi.git

cd sonic-pi

open app/server/ruby/vendor/parslet/lib/parslet/atoms/infix.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Parslet--Atoms--Infix-precedence_climb-for-pr

# Commit to git

git add app/server/ruby/vendor/parslet/lib/parslet/atoms/infix.rbgit commit -m "better docs for Parslet::Atoms::Infix#precedence_climb"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Parslet--Atoms--Infix-precedence_climb-for-pr

hub pull-request

# Celebrate!