unicode/display_width <img src=“https://travis-ci.org/janlelis/unicode-display_width.png” />

An early draft of a way to determine the size of the characters using EastAsianWidth.txt, based on the very early draft of a Ruby interface to UnicodeData.txt by runpaint.

Install

Install the gem with:

gem install unicode-display_width

or add to your Gemfile:

gem 'unicode-display_width'

Usage

require 'unicode/display_width'

The easy way is to use the String#display_width method:

"⚀".display_width #=> 1
'一'.display_width #=> 2

To obtain more detailed character data, you can use the following syntax:

Unicode::DisplayWidth.codepoint( c )

Ambiguous Characters

The display_width method takes an optional argument, which will be used as width for characters defined as “ambigious”. The default value is 1.

Copyright © 2011, 2015 Jan Lelis, rbjl.net, released under the MIT license.

Contains code by runpaint: Copyright © 2009 Run Paint Run Run

Contains EastAsianWidth.txt: Copyright © 1991-2015 Unicode, Inc.

J-_-L