12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 |
- #ifndef JSON_PARSER_PREFIXING_CALLBACKS_HPP
- #define JSON_PARSER_PREFIXING_CALLBACKS_HPP
- #include <boost/property_tree/json_parser/detail/standard_callbacks.hpp>
- namespace constants
- {
- template <typename Ch> const Ch* null_prefix();
- template <> inline const char* null_prefix() { return "_:"; }
- template <> inline const wchar_t* null_prefix() { return L"_:"; }
- template <typename Ch> const Ch* boolean_prefix();
- template <> inline const char* boolean_prefix() { return "b:"; }
- template <> inline const wchar_t* boolean_prefix() { return L"b:"; }
- template <typename Ch> const Ch* number_prefix();
- template <> inline const char* number_prefix() { return "n:"; }
- template <> inline const wchar_t* number_prefix() { return L"n:"; }
- template <typename Ch> const Ch* string_prefix();
- template <> inline const char* string_prefix() { return "s:"; }
- template <> inline const wchar_t* string_prefix() { return L"s:"; }
- template <typename Ch> const Ch* array_prefix();
- template <> inline const char* array_prefix() { return "a:"; }
- template <> inline const wchar_t* array_prefix() { return L"a:"; }
- template <typename Ch> const Ch* object_prefix();
- template <> inline const char* object_prefix() { return "o:"; }
- template <> inline const wchar_t* object_prefix() { return L"o:"; }
- }
- template <typename Ptree>
- struct prefixing_callbacks
- : boost::property_tree::json_parser::detail::standard_callbacks<Ptree> {
- typedef boost::property_tree::json_parser::detail::standard_callbacks<Ptree>
- base;
- typedef typename base::string string;
- typedef typename base::char_type char_type;
- void on_null() {
- base::on_null();
- this->current_value().insert(0, constants::null_prefix<char_type>());
- }
- void on_boolean(bool b) {
- base::on_boolean(b);
- this->current_value().insert(0, constants::boolean_prefix<char_type>());
- }
- template <typename Range>
- void on_number(Range code_units) {
- base::on_number(code_units);
- this->current_value().insert(0, constants::number_prefix<char_type>());
- }
- void on_begin_number() {
- base::on_begin_number();
- this->current_value() = constants::number_prefix<char_type>();
- }
- void on_begin_string() {
- base::on_begin_string();
- if (!this->is_key()) {
- this->current_value() = constants::string_prefix<char_type>();
- }
- }
- void on_begin_array() {
- base::on_begin_array();
- this->current_value() = constants::array_prefix<char_type>();
- }
- void on_begin_object() {
- base::on_begin_object();
- this->current_value() = constants::object_prefix<char_type>();
- }
- };
- #endif
|