`to-romaji`

A very basic kana to modern Hepburn-like rōmaji converter.

e.g. converts "にんじゃりばんばん" to "ninjaribanban".

Notes

Handles repeated っ (e.g. "すっっっごくいい" → "suggggokuii", "あつっ" → "atsu'").
Separates a final ん from a following vowel with a hyphen (e.g. かんいかきとめ → "kan-ikakitome"). Maybe we should use an apostrophe instead?
Does not produce macrons for long vowels (長音) since it's too hard to distinguish between cases like みずうみ which should be "mizuumi" and すうがく which should be "sūgaku".
Does not distinguish between は becoming "ha" and "wa". We tried to do this by using @birchill/tiny-segmenter to find 'は' particles but it turned up false positives on input like "おふろにはいる" (which it segments as "おふろ | に | は | いる").
Does not convert half-width katakana. toNormalized from @birchill/normal-jp can be used as a pre-processing step to handle half-width katakana.

npm install @birchill/to-romaji

import { toRomaji } from '@birchill/to-romaji';

const romaji = toRomaji('にんじゃりばんばん');
// romaji = 'ninjaribanban'