rubocop

https://github.com/bbatsov/rubocop

Ruby

A Ruby static code analyzer, based on the community Ruby style guide.

RuboCop::Cop::Offense#real_column

Internally we use column number that start at 0, but when
outputting column numbers, we want them to start at 1. One
reason is that editors, such as Emacs, expect this.

Source | Google | Stack overflow

Edit

git clone [email protected]:bbatsov/rubocop.git

cd rubocop

open lib/rubocop/cop/offense.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-RuboCop--Cop--Offense-real_column-for-pr

# Commit to git

git add lib/rubocop/cop/offense.rbgit commit -m "better docs for RuboCop::Cop::Offense#real_column"

# Open pull request

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

hub fork

git push <your name> -your-name--update-docs-RuboCop--Cop--Offense-real_column-for-pr

hub pull-request

# Celebrate!