VisualWidth
This gem handles Unicode East Asian Width:
Installation
Add this line to your application's Gemfile:
gem 'visual_width'
And then execute:
$ bundle
Or install it yourself as:
$ gem install visual_width
Usage
require 'visual_width'
p VisualWidth.count("こんにちは") # => 10
p VisualWidth.count("abcdefghij") # => 10
p VisualWidth.truncate("恋すてふ 我が名はまだき 立ちにけり 人知れずこそ 思ひそめしか", 20) # => "恋すてふ 我が名は..."
Each method can take east_asian: false
to tell it is not in an East Asian context, regarding ambiguous characters as half-width.
See Ambiguous Characters in the report.
Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature
) - Commit your changes (
git commit -am 'Add some feature'
) - Push to the branch (
git push origin my-new-feature
) - Create new Pull Request