void ReSplit::handle(Input& input, Output& output)
{
RecordPtr rec = input.pop();
for (; !rec->eof(); output.push(rec), rec = input.pop())
{
std::vector<std::size_t>::iterator iter = _columns.begin();
for (; iter != _columns.end(); ++iter)
{
const std::string& col =
static_cast<const std::string&> ((*rec)[*iter]);
boost::smatch parts;
if (_option == Search)
{
boost::regex_search(col, parts, _regex);
}
else
{
boost::regex_match(col, parts, _regex);
}
boost::smatch::iterator iter = parts.begin();
for (; iter != parts.end(); ++iter)
{
if (!iter->matched)
{
continue;
}
rec->insert(rec->end(), std::string(
iter->first, iter->second));
}
}
}
}
void Filter::handle(Input& input, Output& output)
{
RecordPtr rec = input.pop();
if (_filterType == FilterAnd)
{
for (; !rec->eof(); rec = input.pop())
{
bool test = true;
std::vector<std::size_t>::iterator iter = _columns.begin();
for (; iter != _columns.end(); ++iter)
{
test = test && (bool) (*rec)[*iter];
if (!test)
{
break;
}
}
if (!test)
{
output.push(rec);
}
}
}
else // _filterType == OpOr
{
bool initial = _columns.begin() == _columns.end();
for (; !rec->eof(); rec = input.pop())
{
bool test = initial;
std::vector<std::size_t>::iterator iter = _columns.begin();
for (; iter != _columns.end(); ++iter)
{
test = test || (bool) (*rec)[*iter];
if (test)
{
break;
}
}
if (!test)
{
output.push(rec);
}
}
}
}
void Select::handle(Input& input, Output& output)
{
RecordPtr rec = input.pop();
for (; !rec->eof(); rec = input.pop())
{
RecordPtr ptr = new Record();
ptr->resize(_columns.size());
std::vector<std::size_t>::iterator iter = _columns.begin();
for (; iter != _columns.end(); ++iter)
{
std::size_t index = iter - _columns.begin();
(*ptr)[index] = (*rec)[*iter];
}
output.push(ptr);
}
}