Function util_ConvertMB

src/twparser/policyparser.cpp:208–260

std::string util_ConvertMB(const std::string& sIn)
{
#if !USES_MBLEN
    return sIn;
#else
    cDebug d("cPolicyParser::util_ConvertMB");

    std::string                 sOut;
    std::string::const_iterator at;

    for (at = sIn.begin(); at != sIn.end();
         // at gets incremented when used....
    )
    {
        int nBytes = ::mblen((char*)&at[0], MB_CUR_MAX);
        if (nBytes == -1)
        {
            d.TraceDebug("Unrecognized Character: %c\n", *at);
            if ((unsigned char)*at > 0x7F)
            {
                d.TraceDebug("Normalizing.\n");
                sOut += convert_to_encoded_hex(*(at++));
            }
            else
            {
                d.TraceDebug("Incorrectly Formed, Cannot Normalize!\n");
                std::string s(1, *at);
                TSTRING     ts = cStringUtil::StrToTstr(s);
                throw eParserBadCharacter(ts);
            }
        }
        else if (nBytes == 0)
        {
            break; // done with sIn
        }
        else if (nBytes == 1)
        {
            sOut += *(at++); // regular SB char
        }
        else // ( nBytes > 1 )
        {
            // mb char -- output it as encoded bytes
            while (nBytes-- > 0)
            {
                ASSERT(at != sIn.end());
                sOut += convert_to_encoded_hex(*(at++));
            }
        }
    }

    return sOut;
#endif
}