+ if (type == "name")
+ return eDVBChannelQuery::tName;
+ else if (type == "provider")
+ return eDVBChannelQuery::tProvider;
+ else if (type == "type")
+ return eDVBChannelQuery::tType;
+ else if (type == "bouquet")
+ return eDVBChannelQuery::tBouquet;
+ else if (type == "satellitePosition")
+ return eDVBChannelQuery::tSatellitePosition;
+ else if (type == "channelID")
+ return eDVBChannelQuery::tChannelID;
+ else
+ return -1;
+}
+
+ /* never, NEVER write a parser in C++! */
+RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
+{
+ std::list<std::string>::const_iterator end_of_exp;
+ if (*begin == "(")
+ {
+ end_of_exp = begin;
+ while (end_of_exp != end)
+ if (*end_of_exp == ")")
+ break;
+ else
+ ++end_of_exp;
+
+ if (end_of_exp == end)
+ {
+ eDebug("expression parse: end of expression while searching for closing brace");
+ return -1;
+ }
+
+ ++begin;
+ // begin..end_of_exp
+ int r = parseExpression(res, begin, end_of_exp);
+ if (r)
+ return r;
+ ++end_of_exp;
+
+ /* we had only one sub expression */
+ if (end_of_exp == end)
+ {
+ eDebug("only one sub expression");
+ return 0;
+ }
+
+ /* otherwise we have an operator here.. */
+
+ ePtr<eDVBChannelQuery> r2 = res;
+ res = new eDVBChannelQuery();
+ res->m_sort = 0;
+ res->m_p1 = r2;
+ res->m_inverse = 0;
+ r2 = 0;
+
+ if (*end_of_exp == "||")
+ res->m_type = eDVBChannelQuery::tOR;
+ else if (*end_of_exp == "&&")
+ res->m_type = eDVBChannelQuery::tAND;
+ else
+ {
+ eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
+ res = 0;
+ return 1;
+ }
+
+ ++end_of_exp;
+
+ return parseExpression(res->m_p2, end_of_exp, end);
+ }
+
+ // "begin" <op> "end"
+ std::string type, op, val;
+