komagata / eastasianwidth

Get East Asian Width from a character.

East Asian Width

Get East Asian Width from a character.

'F'(Fullwidth), 'H'(Halfwidth), 'W'(Wide), 'Na'(Narrow), 'A'(Ambiguous) or 'N'(Natural).

Original Code is 東アジアの文字幅 (East Asian Width) の判定 - 中途.

Install

$ npm install eastasianwidth

Usage

var eaw = require('eastasianwidth');
console.log(eaw.eastAsianWidth('￦')) // 'F'
console.log(eaw.eastAsianWidth('｡')) // 'H'
console.log(eaw.eastAsianWidth('뀀')) // 'W'
console.log(eaw.eastAsianWidth('a')) // 'Na'
console.log(eaw.eastAsianWidth('①')) // 'A'
console.log(eaw.eastAsianWidth('ف')) // 'N'

console.log(eaw.characterLength('￦')) // 2
console.log(eaw.characterLength('｡')) // 1
console.log(eaw.characterLength('뀀')) // 2
console.log(eaw.characterLength('a')) // 1
console.log(eaw.characterLength('①')) // 2
console.log(eaw.characterLength('ف')) // 1

console.log(eaw.length('あいうえお')) // 10
console.log(eaw.length('abcdefg')) // 7
console.log(eaw.length('￠￦｡ￜㄅ뀀¢⟭a⊙①بف')) // 19

eastasianwidth's Issues

Incorrect width for zhuyin tone marks

Thanks for this library. I am building a typing speed training game for Zhuyin (注音) input and this will be convenient.

The tone marks from Zhuyin input are incorrectly having a length of 2 when they should be 1.

const eaw = require("eastasianwidth")

eaw.characterLength("ˋ") // 2
eaw.characterLength("ˇ") // 2
eaw.characterLength("˙") // 2
eaw.characterLength("ˊ") // 2

Incorrect width for some letters with diacritic marks

const eaw = require("eastasianwidth")
eaw.characterLength("ì") // 2

This should be length 1 instead of 2.

The licence file is absent.

It would be nice to add a license file in order to get a possibility use this library for enterprise projects.

version not found: [email protected]

It seems to be that you've not re published your module after you increased it's version.