}
+bool Counters::copy(docstring const & cnt, docstring const & newcnt)
+{
+ auto const it = counterList_.find(cnt);
+ if (it == counterList_.end())
+ return false;
+ counterList_[newcnt] = it->second;
+ return true;
+}
+
+
bool Counters::remove(docstring const & cnt)
{
bool retval = counterList_.erase(cnt);