Function Base64DecodePlain

library/cpp/string_utils/base64/base64.cpp:181–201

}

static size_t Base64DecodePlain(void* dst, const char* b, const char* e) {
    size_t n = 0;
    while (b < e) {
        uudecode_1((char*)dst + n, (unsigned char*)b);

        b += 4;
        n += 3;
    }

    if (n > 0) {
        if (b[-1] == ',' || b[-1] == '=') {
            n--;

            if (b[-2] == ',' || b[-2] == '=') {
                n--;
            }
        }
    }

    return n;
}

// Table for Base64StrictDecode
static const char base64_bkw_strict[] =