typename ucs4_convert_impl::enableif<TD, typename TS::value_type>::type unicode_cast(const TS& source)
//TD unicode_cast(const TS& source)
{
using namespace ucs4_convert_impl;
typedef typename convert_impl<typename TD::value_type>::type t_impl_writer;
typedef typename convert_impl<typename TS::value_type>::type t_impl_reader;
typedef typename std::back_insert_iterator<TD> t_outputitor;
typedef typename TS::const_iterator t_inputitor;
TD res;
try
{
t_outputitor inserter(res);
iteratorwriter<t_outputitor> dst(inserter);
t_inputitor i1 = source.begin();
t_inputitor i2 = source.end();
while(i1 != i2) {
t_impl_writer::write (dst, t_impl_reader::read(i1, i2));
}
}
catch(utf8::invalid_utf8_exception&)
{
// TODO: use a ERR_.. stream but i dont know whether i can so to in header easily.
std::cerr << "Failed to convert a string from " << t_impl_reader::get_name() << " to " << t_impl_writer::get_name() << "\n";
return res;
}
return res;
}
void debug_ts() {
for(TS::iterator iter = ts.begin(); iter != ts.end(); ++iter) {
debug_->debug("(%s %s %s)", (char*)iter->get(0), (char*)iter->get(1), (char*)iter->get(2));
for(int i = 0; i < 1000; i++) ;
}
}
