/* static */
RTCString
RTCString::joinEx(const RTCList<RTCString, RTCString *> &a_rList,
const RTCString &a_rstrPrefix /* = "" */,
const RTCString &a_rstrSep /* = "" */)
{
RTCString strRet;
if (a_rList.size() > 1)
{
/* calc the required size */
size_t cbNeeded = a_rstrSep.length() * (a_rList.size() - 1) + 1;
cbNeeded += a_rstrPrefix.length() * (a_rList.size() - 1) + 1;
for (size_t i = 0; i < a_rList.size(); ++i)
cbNeeded += a_rList.at(i).length();
strRet.reserve(cbNeeded);
/* do the appending. */
for (size_t i = 0; i < a_rList.size() - 1; ++i)
{
if (a_rstrPrefix.isNotEmpty())
strRet.append(a_rstrPrefix);
strRet.append(a_rList.at(i));
strRet.append(a_rstrSep);
}
strRet.append(a_rList.last());
}
/* special case: one list item. */
else if (a_rList.size() > 0)
{
if (a_rstrPrefix.isNotEmpty())
strRet.append(a_rstrPrefix);
strRet.append(a_rList.last());
}
return strRet;
}
