void write_json_helper(std::basic_ostream<typename Ptree::key_type::value_type> &stream,
const Ptree &pt,
int indent, bool pretty)
{
typedef typename Ptree::key_type::value_type Ch;
typedef typename std::basic_string<Ch> Str;
// Value or object or array
if (indent > 0 && pt.empty())
{
// Write value
Str data = create_escapes(pt.template get_value<Str>());
stream << Ch('"') << data << Ch('"');
}
else if (indent > 0 && pt.count(Str()) == pt.size())
{
// Write array
stream << Ch('[');
if (pretty) stream << Ch('\n');
typename Ptree::const_iterator it = pt.begin();
for (; it != pt.end(); ++it)
{
if (pretty) stream << Str(4 * (indent + 1), Ch(' '));
write_json_helper(stream, it->second, indent + 1, pretty);
if (lslboost::next(it) != pt.end())
stream << Ch(',');
if (pretty) stream << Ch('\n');
}
stream << Str(4 * indent, Ch(' ')) << Ch(']');
}
else
{
// Write object
stream << Ch('{');
if (pretty) stream << Ch('\n');
typename Ptree::const_iterator it = pt.begin();
for (; it != pt.end(); ++it)
{
if (pretty) stream << Str(4 * (indent + 1), Ch(' '));
stream << Ch('"') << create_escapes(it->first) << Ch('"') << Ch(':');
if (pretty) {
if (it->second.empty())
stream << Ch(' ');
else
stream << Ch('\n') << Str(4 * (indent + 1), Ch(' '));
}
write_json_helper(stream, it->second, indent + 1, pretty);
if (lslboost::next(it) != pt.end())
stream << Ch(',');
if (pretty) stream << Ch('\n');
}
if (pretty) stream << Str(4 * indent, Ch(' '));
stream << Ch('}');
}
}
void write_info_helper(std::basic_ostream<typename Ptree::char_type> &stream,
const Ptree &pt,
int indent)
{
// Character type
typedef typename Ptree::char_type Ch;
// Write data
if (indent >= 0)
{
if (!pt.data().empty())
{
std::basic_string<Ch> data = create_escapes(pt.template get_own<std::basic_string<Ch> >());
if (is_simple_data(data))
stream << Ch(' ') << data << Ch('\n');
else
stream << Ch(' ') << Ch('\"') << data << Ch('\"') << Ch('\n');
}
else if (pt.empty())
stream << Ch(' ') << Ch('\"') << Ch('\"') << Ch('\n');
else
stream << Ch('\n');
}
// Write keys
if (!pt.empty())
{
// Open brace
if (indent >= 0)
stream << std::basic_string<Ch>(4 * indent, Ch(' ')) << Ch('{') << Ch('\n');
// Write keys
typename Ptree::const_iterator it = pt.begin();
for (; it != pt.end(); ++it)
{
// Output key
std::basic_string<Ch> key = create_escapes(it->first);
stream << std::basic_string<Ch>(4 * (indent + 1), Ch(' '));
if (is_simple_key(key))
stream << key;
else
stream << Ch('\"') << key << Ch('\"');
// Output data and children
write_info_helper(stream, it->second, indent + 1);
}
// Close brace
if (indent >= 0)
stream << std::basic_string<Ch>(4 * indent, Ch(' ')) << Ch('}') << Ch('\n');
}
}
