Japanese pitch accent tools

Japanese dictionaries often display the pitch accent of a word with a single number that determines where the pitch falls. This can be difficult to mentally visualize without counting through the mora of the word. This library provides useful tools for generating pitch patterns which can then be easily displayed via SVG.

npm install --save hatsuon

Visualization Example

import { hatsuon } from 'hatsuon';

hatsuon({ reading: 'ちゅうがっこう', pitchNum: 3 });
// =>
{
  reading: 'ちゅうがっこう',
  pitchNum: 3,
  morae: ['ちゅ', 'う', 'が', 'っ', 'こ', 'う'],
  // low, high, high, low, low, low, low*
  // *following particle (は、が, の etc) pitch
  pattern: [0, 1, 1, 0, 0, 0, 0],
  patternName: '中高', // nakadaka
}

Extra available utils (see source for documentation):

import {
  isDigraph,
  getMorae,
  getMoraCount,
  makePitchPattern,
  getPitchPatternName,
  getPitchNumFromPattern,
} from 'hatsuon';

WanaKana : Japanese romaji <-> kana transliteration library

Thanks goes to these people (emoji key):

Duncan Bay 💻 📖 🚇 🎨

This project follows the all-contributors specification. Contributions of any kind welcome!

MIT © Duncan Bay