/**
* Interpret an "at" with a given super string.
* @param container Container to look through.
* @param index The index in the container.
* @return the element at an index in the container.
*/
Element InterpretSuperString_( SuperString str, Number index)
{
int const SIZE = static_cast<int>(str.Value().size());
if (index.IntValue() < SIZE && index.IntValue() >= 0)
{
return SuperString(str.Value().substr(index.IntValue(), 1));
}
else
{
std::stringstream ss;
ss << "the index given is out of range: index=" << index.IntValue() << ", max=" << SIZE;
return Error(ss.str());
}
}
/**
* Interpret an "at" with a given container.
* @param container Container to look through.
* @param index The index in the container.
* @return the element at an index in the container.
*/
Element InterpretContainer_( Container container, Number index)
{
if (index.IntValue() < container.NumberOfElements() && index.IntValue() >= 0)
{
return container.Get(index.IntValue());
}
else
{
std::stringstream ss;
ss << "the index given is out of range: index=" << index.IntValue() << ", max=" << container.NumberOfElements();
return Error(ss.str());
}
}