romanize-string

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A fully typed, general-purpose utility for unidirectional string transliteration (non-Latin script => Latin script).

24 lines (23 loc) • 647 B

JavaScript

import { HANGUL_BLOCKS } from "../constants/unicode.js";
import { IntervalTree } from "./interval-tree.js";
export class HangulTree extends IntervalTree {
    constructor() {
        super();
        Object.entries(HANGUL_BLOCKS).forEach(([block, { start, end }]) => {
            super.insert(start, end, block);
        });
    }
    isHangulChar(char) {
        const code = char.charCodeAt(0);
        return super.exists(code);
    }
    isHangul(str) {
        for (const char of str) {
            if (!this.isHangulChar(char)) {
                return false;
            }
        }
        return true;
    }
}
export default HangulTree;