@polkadot/util-crypto/hd/validatePath.js

A collection of useful crypto utilities for @polkadot

export const HARDENED = 0x80000000;
export function hdValidatePath(path) {
    if (!path.startsWith('m/')) {
        return false;
    }
    const parts = path.split('/').slice(1);
    for (const p of parts) {
        const n = /^\d+'?$/.test(p)
            ? parseInt(p.replace(/'$/, ''), 10)
            : Number.NaN;
        if (isNaN(n) || (n >= HARDENED) || (n < 0)) {
            return false;
        }
    }
    return true;
}