Method Encode

src/tripwire/mailmessage.cpp:322–377

TODO:BAM -- line breaks TODO:BAM -- ToEncoding( const std::string& sIn, int maxLineLen = -1, int maxLen = -1 )

// TODO:BAM -- line breaks
// TODO:BAM -- ToEncoding( const std::string& sIn, int maxLineLen = -1, int maxLen = -1 )
std::string cQuotedPrintableEncoding::Encode(const std::string& sIn, int maxLineLen, int maxLen)
{
    static const size_t _CHAR_AS_HEX_LEN  = 2;
    static const size_t _ENCODED_CHAR_LEN = _CHAR_AS_HEX_LEN + sizeof('=');

    std::string sOut;
    sOut.resize(sIn.size() * _ENCODED_CHAR_LEN); // optimize.  one char can turn into 3

    std::string::const_iterator at;
    std::string::size_type      i       = 0;
    std::string::size_type      lineLen = 0;
    for (at = sIn.begin(); at != sIn.end(); ++at, lineLen += _ENCODED_CHAR_LEN)
    {
        if (NeedsEncoding(*at))
        {
            ASSERT((unsigned char)*at <= 0xFF);

            std::string sTmp = EncodeChar(*at);
            ASSERT(sTmp.length() == _CHAR_AS_HEX_LEN);

            sOut[i++] = '=';

            std::copy(&sTmp[0], &sTmp[_CHAR_AS_HEX_LEN], &sOut[i]);
            ASSERT(_CHAR_AS_HEX_LEN > 0);
            i += _CHAR_AS_HEX_LEN;
        }
        else
        {
            sOut[i++] = *at;
        }

        //
        // if string is too long, just quit
        //
        if (maxLen != -1 && i >= maxLen - _ENCODED_CHAR_LEN)
        {
            break;
        }

        //
        // check line len
        //
        if (maxLineLen != -1 && lineLen >= maxLineLen - _ENCODED_CHAR_LEN)
        {
            // append EOL
            sOut[i++] = '=';
            sOut[i++] = '\r';
            sOut[i++] = '\n';
            lineLen   = 0;
        }
    }

    sOut.resize(i);

    return sOut;
}

std::string cMailMessageUtil::CreateEncodedText(const std::string& text)