sonic-pi

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

C++

Code. Music. Live.

Parslet::Transform#rule

Defines a rule to be applied whenever apply is called on a tree. A rule
is composed of two parts: 

* an *expression pattern*
* a *transformation block*

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/transform.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Parslet--Transform-rule-for-pr

# Commit to git

git add app/server/ruby/vendor/parslet/lib/parslet/transform.rbgit commit -m "better docs for Parslet::Transform#rule"

# 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--Transform-rule-for-pr

hub pull-request

# Celebrate!