Method appendLengthInfo

src/core/qrcode/encoder/Encoder.ts:492–498

* Append length info. On success, store the result in "bits".

(numLetters: number /*int*/, version: Version, mode: Mode, bits: BitArray)

     * Append length info. On success, store the result in "bits".
     */
    public static appendLengthInfo(numLetters: number /*int*/, version: Version, mode: Mode, bits: BitArray): void /*throws WriterException*/ {
        const numBits = mode.getCharacterCountBits(version);
        if (numLetters >= (1 << numBits)) {
            throw new WriterException(numLetters + ' is bigger than ' + ((1 << numBits) - 1));
        }
        bits.appendBits(numLetters, numBits);
    }

    /**
     * Append "bytes" in "mode" mode (encoding) into "bits". On success, store the result in "bits".