sonic-pi

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

C++

Code. Music. Live.

Parslet::Atoms::DSL#absnt?

Tests for absence of a parslet atom in the input stream without consuming
it. 

Example: 
  # Only proceed the parse if 'a' is absent.
  str('a').absent?

Alias for absent? that will disappear in 2.0 (deprecated)

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/dsl.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Parslet--Atoms--DSL-absnt--for-pr

# Commit to git

git add app/server/ruby/vendor/parslet/lib/parslet/atoms/dsl.rbgit commit -m "better docs for Parslet::Atoms::DSL#absnt?"

# 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--DSL-absnt--for-pr

hub pull-request

# Celebrate!