sonic-pi

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

C++

Code. Music. Live.

Parslet::Accelerator#rule

Constructs an accelerator rule. A rule is a matching expression and the
code that should be executed once the expression could be bound to a 
parser. 

Example: 
  Accelerator.rule(Accelerator.any) { Parslet.match('.') }

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/accelerator.rb

Contribute

# Make a new branch

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

# Commit to git

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

hub pull-request

# Celebrate!