@ledgerhq/coin-stellar/lib-es/logic/validateMemo.js

Ledger Stellar Coin integration

import BigNumber from "bignumber.js";
export const MEMO_TEXT_MAXIMUM_SIZE = 28;
export const MEMO_HASH_FIXED_SIZE = 64;
export function validateMemo(memo, type) {
    switch (type) {
        case "NO_MEMO":
            return !memo || memo.length === 0;
        case "MEMO_TEXT":
            return memo.length <= MEMO_TEXT_MAXIMUM_SIZE;
        case "MEMO_ID":
            return !new BigNumber(memo.toString()).isNaN();
        case "MEMO_HASH":
        case "MEMO_RETURN":
            return memo.length === 64;
    }
}
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