rodecomp/Recovered/jsoncons/include/jsoncons/json_encoder.hpp
ragnarok-clanker 9b9c369f0c Move exe-only code to Recovered/ and rebuild virtualised PakAuxiliary::Extract
Recovered/ holds the code linked only into the standalone exe (scripts/exe/build_exe.py), outside the Clank source dirs:
- jsoncons/ and nProtect/ moved from scripts/exe/; GameGuard stand-in follows main's renamed entry points.
- GPak/PakAuxiliary.cpp: Extract (virtualised in every build; 02-19 jumps out at 0x0065861E) rebuilt from the open GRF Editor decoder, after the visible 02-19 prologue; inline key and kRO keys 1-4. Apply traps (unreachable in 02-19).
- GGHash/GGHash.cpp: CGGHash::Load/Check/VerifyHash trap (RagHash.dat check unreachable in 02-19).
The whole client links: 984 units, 0 unresolved.
2026-11-06 19:33:10 +01:00

1582 lines
57 KiB
C++

// Copyright 2013-2023 Daniel Parker
// Distributed under the Boost license, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// See https://github.com/danielaparker/jsoncons for latest version
#ifndef JSONCONS_JSON_ENCODER_HPP
#define JSONCONS_JSON_ENCODER_HPP
#include <array> // std::array
#include <string>
#include <vector>
#include <cmath> // std::isfinite, std::isnan
#include <limits> // std::numeric_limits
#include <memory>
#include <utility> // std::move
#include <jsoncons/config/jsoncons_config.hpp>
#include <jsoncons/json_exception.hpp>
#include <jsoncons/byte_string.hpp>
#include <jsoncons/bigint.hpp>
#include <jsoncons/json_options.hpp>
#include <jsoncons/json_error.hpp>
#include <jsoncons/json_visitor.hpp>
#include <jsoncons/sink.hpp>
#include <jsoncons/detail/write_number.hpp>
namespace jsoncons {
namespace detail {
inline
bool is_control_character(uint32_t c)
{
return c <= 0x1F || c == 0x7f;
}
inline
bool is_non_ascii_codepoint(uint32_t cp)
{
return cp >= 0x80;
}
template <class CharT, class Sink>
std::size_t escape_string(const CharT* s, std::size_t length,
bool escape_all_non_ascii, bool escape_solidus,
Sink& sink)
{
std::size_t count = 0;
const CharT* begin = s;
const CharT* end = s + length;
for (const CharT* it = begin; it != end; ++it)
{
CharT c = *it;
switch (c)
{
case '\\':
sink.push_back('\\');
sink.push_back('\\');
count += 2;
break;
case '"':
sink.push_back('\\');
sink.push_back('\"');
count += 2;
break;
case '\b':
sink.push_back('\\');
sink.push_back('b');
count += 2;
break;
case '\f':
sink.push_back('\\');
sink.push_back('f');
count += 2;
break;
case '\n':
sink.push_back('\\');
sink.push_back('n');
count += 2;
break;
case '\r':
sink.push_back('\\');
sink.push_back('r');
count += 2;
break;
case '\t':
sink.push_back('\\');
sink.push_back('t');
count += 2;
break;
default:
if (escape_solidus && c == '/')
{
sink.push_back('\\');
sink.push_back('/');
count += 2;
}
else if (is_control_character(c) || escape_all_non_ascii)
{
// convert to codepoint
uint32_t cp;
auto r = unicode_traits::to_codepoint(it, end, cp, unicode_traits::conv_flags::strict);
if (r.ec != unicode_traits::conv_errc())
{
JSONCONS_THROW(ser_error(json_errc::illegal_codepoint));
}
it = r.ptr - 1;
if (is_non_ascii_codepoint(cp) || is_control_character(c))
{
if (cp > 0xFFFF)
{
cp -= 0x10000;
uint32_t first = (cp >> 10) + 0xD800;
uint32_t second = ((cp & 0x03FF) + 0xDC00);
sink.push_back('\\');
sink.push_back('u');
sink.push_back(jsoncons::detail::to_hex_character(first >> 12 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(first >> 8 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(first >> 4 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(first & 0x000F));
sink.push_back('\\');
sink.push_back('u');
sink.push_back(jsoncons::detail::to_hex_character(second >> 12 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(second >> 8 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(second >> 4 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(second & 0x000F));
count += 12;
}
else
{
sink.push_back('\\');
sink.push_back('u');
sink.push_back(jsoncons::detail::to_hex_character(cp >> 12 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(cp >> 8 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(cp >> 4 & 0x000F));
sink.push_back(jsoncons::detail::to_hex_character(cp & 0x000F));
count += 6;
}
}
else
{
sink.push_back(c);
++count;
}
}
else
{
sink.push_back(c);
++count;
}
break;
}
}
return count;
}
inline
byte_string_chars_format resolve_byte_string_chars_format(byte_string_chars_format format1,
byte_string_chars_format format2,
byte_string_chars_format default_format = byte_string_chars_format::base64url)
{
byte_string_chars_format sink;
switch (format1)
{
case byte_string_chars_format::base16:
case byte_string_chars_format::base64:
case byte_string_chars_format::base64url:
sink = format1;
break;
default:
switch (format2)
{
case byte_string_chars_format::base64url:
case byte_string_chars_format::base64:
case byte_string_chars_format::base16:
sink = format2;
break;
default: // base64url
{
sink = default_format;
break;
}
}
break;
}
return sink;
}
} // namespace detail
template<class CharT,class Sink=jsoncons::stream_sink<CharT>,class Allocator=std::allocator<char>>
class basic_json_encoder final : public basic_json_visitor<CharT>
{
static const jsoncons::basic_string_view<CharT> null_constant()
{
static const jsoncons::basic_string_view<CharT> k = JSONCONS_STRING_VIEW_CONSTANT(CharT, "null");
return k;
}
static const jsoncons::basic_string_view<CharT> true_constant()
{
static const jsoncons::basic_string_view<CharT> k = JSONCONS_STRING_VIEW_CONSTANT(CharT, "true");
return k;
}
static const jsoncons::basic_string_view<CharT> false_constant()
{
static const jsoncons::basic_string_view<CharT> k = JSONCONS_STRING_VIEW_CONSTANT(CharT, "false");
return k;
}
public:
using allocator_type = Allocator;
using char_type = CharT;
using typename basic_json_visitor<CharT>::string_view_type;
using sink_type = Sink;
using string_type = typename basic_json_encode_options<CharT>::string_type;
private:
enum class container_type {object, array};
class encoding_context
{
container_type type_;
std::size_t count_;
line_split_kind line_splits_;
bool indent_before_;
bool new_line_after_;
std::size_t begin_pos_;
std::size_t data_pos_;
public:
encoding_context(container_type type, line_split_kind split_lines, bool indent_once,
std::size_t begin_pos, std::size_t data_pos) noexcept
: type_(type), count_(0), line_splits_(split_lines), indent_before_(indent_once), new_line_after_(false),
begin_pos_(begin_pos), data_pos_(data_pos)
{
}
encoding_context(const encoding_context&) = default;
encoding_context& operator=(const encoding_context&) = default;
void set_position(std::size_t pos)
{
data_pos_ = pos;
}
std::size_t begin_pos() const
{
return begin_pos_;
}
std::size_t data_pos() const
{
return data_pos_;
}
std::size_t count() const
{
return count_;
}
void increment_count()
{
++count_;
}
bool new_line_after() const
{
return new_line_after_;
}
void new_line_after(bool value)
{
new_line_after_ = value;
}
bool is_object() const
{
return type_ == container_type::object;
}
bool is_array() const
{
return type_ == container_type::array;
}
bool is_same_line() const
{
return line_splits_ == line_split_kind::same_line;
}
bool is_new_line() const
{
return line_splits_ == line_split_kind::new_line;
}
bool is_multi_line() const
{
return line_splits_ == line_split_kind::multi_line;
}
bool is_indent_once() const
{
return count_ == 0 ? indent_before_ : false;
}
};
typedef typename std::allocator_traits<allocator_type>:: template rebind_alloc<encoding_context> encoding_context_allocator_type;
Sink sink_;
basic_json_encode_options<CharT> options_;
jsoncons::detail::write_double fp_;
std::vector<encoding_context,encoding_context_allocator_type> stack_;
int indent_amount_;
std::size_t column_;
std::basic_string<CharT> colon_str_;
std::basic_string<CharT> comma_str_;
std::basic_string<CharT> open_object_brace_str_;
std::basic_string<CharT> close_object_brace_str_;
std::basic_string<CharT> open_array_bracket_str_;
std::basic_string<CharT> close_array_bracket_str_;
int nesting_depth_;
// Noncopyable and nonmoveable
basic_json_encoder(const basic_json_encoder&) = delete;
basic_json_encoder& operator=(const basic_json_encoder&) = delete;
public:
basic_json_encoder(Sink&& sink,
const Allocator& alloc = Allocator())
: basic_json_encoder(std::forward<Sink>(sink), basic_json_encode_options<CharT>(), alloc)
{
}
basic_json_encoder(Sink&& sink,
const basic_json_encode_options<CharT>& options,
const Allocator& alloc = Allocator())
: sink_(std::forward<Sink>(sink)),
options_(options),
fp_(options.float_format(), options.precision()),
stack_(alloc),
indent_amount_(0),
column_(0),
nesting_depth_(0)
{
switch (options.spaces_around_colon())
{
case spaces_option::space_after:
colon_str_ = std::basic_string<CharT>({':',' '});
break;
case spaces_option::space_before:
colon_str_ = std::basic_string<CharT>({' ',':'});
break;
case spaces_option::space_before_and_after:
colon_str_ = std::basic_string<CharT>({' ',':',' '});
break;
default:
colon_str_.push_back(':');
break;
}
switch (options.spaces_around_comma())
{
case spaces_option::space_after:
comma_str_ = std::basic_string<CharT>({',',' '});
break;
case spaces_option::space_before:
comma_str_ = std::basic_string<CharT>({' ',','});
break;
case spaces_option::space_before_and_after:
comma_str_ = std::basic_string<CharT>({' ',',',' '});
break;
default:
comma_str_.push_back(',');
break;
}
if (options.pad_inside_object_braces())
{
open_object_brace_str_ = std::basic_string<CharT>({'{', ' '});
close_object_brace_str_ = std::basic_string<CharT>({' ', '}'});
}
else
{
open_object_brace_str_.push_back('{');
close_object_brace_str_.push_back('}');
}
if (options.pad_inside_array_brackets())
{
open_array_bracket_str_ = std::basic_string<CharT>({'[', ' '});
close_array_bracket_str_ = std::basic_string<CharT>({' ', ']'});
}
else
{
open_array_bracket_str_.push_back('[');
close_array_bracket_str_.push_back(']');
}
}
~basic_json_encoder() noexcept
{
JSONCONS_TRY
{
sink_.flush();
}
JSONCONS_CATCH(...)
{
}
}
void reset()
{
stack_.clear();
indent_amount_ = 0;
column_ = 0;
nesting_depth_ = 0;
}
void reset(Sink&& sink)
{
sink_ = std::move(sink);
reset();
}
private:
// Implementing methods
void visit_flush() override
{
sink_.flush();
}
bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override
{
if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth()))
{
ec = json_errc::max_nesting_depth_exceeded;
return false;
}
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.append(comma_str_.data(),comma_str_.length());
column_ += comma_str_.length();
}
if (!stack_.empty()) // object or array
{
if (stack_.back().is_object())
{
switch (options_.object_object_line_splits())
{
case line_split_kind::same_line:
case line_split_kind::new_line:
if (column_ >= options_.line_length_limit())
{
break_line();
}
break;
default: // multi_line
break;
}
stack_.emplace_back(container_type::object,options_.object_object_line_splits(), false,
column_, column_+open_object_brace_str_.length());
}
else // array
{
switch (options_.array_object_line_splits())
{
case line_split_kind::same_line:
if (column_ >= options_.line_length_limit())
{
//stack_.back().new_line_after(true);
new_line();
}
break;
case line_split_kind::new_line:
stack_.back().new_line_after(true);
new_line();
break;
default: // multi_line
stack_.back().new_line_after(true);
new_line();
break;
}
stack_.emplace_back(container_type::object,options_.array_object_line_splits(), false,
column_, column_+open_object_brace_str_.length());
}
}
else
{
stack_.emplace_back(container_type::object, line_split_kind::multi_line, false,
column_, column_+open_object_brace_str_.length());
}
indent();
sink_.append(open_object_brace_str_.data(), open_object_brace_str_.length());
column_ += open_object_brace_str_.length();
return true;
}
bool visit_end_object(const ser_context&, std::error_code&) override
{
JSONCONS_ASSERT(!stack_.empty());
--nesting_depth_;
unindent();
if (stack_.back().new_line_after())
{
new_line();
}
stack_.pop_back();
sink_.append(close_object_brace_str_.data(), close_object_brace_str_.length());
column_ += close_object_brace_str_.length();
end_value();
return true;
}
bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override
{
if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth()))
{
ec = json_errc::max_nesting_depth_exceeded;
return false;
}
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.append(comma_str_.data(),comma_str_.length());
column_ += comma_str_.length();
}
if (!stack_.empty())
{
if (stack_.back().is_object())
{
switch (options_.object_array_line_splits())
{
case line_split_kind::same_line:
stack_.emplace_back(container_type::array,options_.object_array_line_splits(),false,
column_, column_ + open_array_bracket_str_.length());
break;
case line_split_kind::new_line:
{
stack_.emplace_back(container_type::array,options_.object_array_line_splits(),true,
column_, column_+open_array_bracket_str_.length());
break;
}
default: // multi_line
stack_.emplace_back(container_type::array,options_.object_array_line_splits(),true,
column_, column_+open_array_bracket_str_.length());
break;
}
}
else // array
{
switch (options_.array_array_line_splits())
{
case line_split_kind::same_line:
if (stack_.back().is_multi_line())
{
stack_.back().new_line_after(true);
new_line();
}
stack_.emplace_back(container_type::array,options_.array_array_line_splits(), false,
column_, column_+open_array_bracket_str_.length());
break;
case line_split_kind::new_line:
stack_.back().new_line_after(true);
new_line();
stack_.emplace_back(container_type::array,options_.array_array_line_splits(), false,
column_, column_+open_array_bracket_str_.length());
break;
default: // multi_line
stack_.back().new_line_after(true);
new_line();
stack_.emplace_back(container_type::array,options_.array_array_line_splits(), false,
column_, column_+open_array_bracket_str_.length());
//new_line();
break;
}
}
}
else
{
stack_.emplace_back(container_type::array, line_split_kind::multi_line, false,
column_, column_+open_array_bracket_str_.length());
}
indent();
sink_.append(open_array_bracket_str_.data(), open_array_bracket_str_.length());
column_ += open_array_bracket_str_.length();
return true;
}
bool visit_end_array(const ser_context&, std::error_code&) override
{
JSONCONS_ASSERT(!stack_.empty());
--nesting_depth_;
unindent();
if (stack_.back().new_line_after())
{
new_line();
}
stack_.pop_back();
sink_.append(close_array_bracket_str_.data(), close_array_bracket_str_.length());
column_ += close_array_bracket_str_.length();
end_value();
return true;
}
bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override
{
JSONCONS_ASSERT(!stack_.empty());
if (stack_.back().count() > 0)
{
sink_.append(comma_str_.data(),comma_str_.length());
column_ += comma_str_.length();
}
if (stack_.back().is_multi_line())
{
stack_.back().new_line_after(true);
new_line();
}
else if (stack_.back().count() > 0 && column_ >= options_.line_length_limit())
{
//stack_.back().new_line_after(true);
new_line(stack_.back().data_pos());
}
if (stack_.back().count() == 0)
{
stack_.back().set_position(column_);
}
sink_.push_back('\"');
std::size_t length = jsoncons::detail::escape_string(name.data(), name.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_);
sink_.push_back('\"');
sink_.append(colon_str_.data(),colon_str_.length());
column_ += (length+2+colon_str_.length());
return true;
}
bool visit_null(semantic_tag, const ser_context&, std::error_code&) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
sink_.append(null_constant().data(), null_constant().size());
column_ += null_constant().size();
end_value();
return true;
}
bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code&) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
switch (tag)
{
case semantic_tag::bigint:
write_bigint_value(sv);
break;
default:
{
sink_.push_back('\"');
std::size_t length = jsoncons::detail::escape_string(sv.data(), sv.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_);
sink_.push_back('\"');
column_ += (length+2);
break;
}
}
end_value();
return true;
}
bool visit_byte_string(const byte_string_view& b,
semantic_tag tag,
const ser_context&,
std::error_code&) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
byte_string_chars_format encoding_hint;
switch (tag)
{
case semantic_tag::base16:
encoding_hint = byte_string_chars_format::base16;
break;
case semantic_tag::base64:
encoding_hint = byte_string_chars_format::base64;
break;
case semantic_tag::base64url:
encoding_hint = byte_string_chars_format::base64url;
break;
default:
encoding_hint = byte_string_chars_format::none;
break;
}
byte_string_chars_format format = jsoncons::detail::resolve_byte_string_chars_format(options_.byte_string_format(),
encoding_hint,
byte_string_chars_format::base64url);
switch (format)
{
case byte_string_chars_format::base16:
{
sink_.push_back('\"');
std::size_t length = encode_base16(b.begin(),b.end(),sink_);
sink_.push_back('\"');
column_ += (length + 2);
break;
}
case byte_string_chars_format::base64:
{
sink_.push_back('\"');
std::size_t length = encode_base64(b.begin(), b.end(), sink_);
sink_.push_back('\"');
column_ += (length + 2);
break;
}
case byte_string_chars_format::base64url:
{
sink_.push_back('\"');
std::size_t length = encode_base64url(b.begin(),b.end(),sink_);
sink_.push_back('\"');
column_ += (length + 2);
break;
}
default:
{
JSONCONS_UNREACHABLE();
}
}
end_value();
return true;
}
bool visit_double(double value,
semantic_tag,
const ser_context& context,
std::error_code& ec) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
if (!std::isfinite(value))
{
if ((std::isnan)(value))
{
if (options_.enable_nan_to_num())
{
sink_.append(options_.nan_to_num().data(), options_.nan_to_num().length());
column_ += options_.nan_to_num().length();
}
else if (options_.enable_nan_to_str())
{
visit_string(options_.nan_to_str(), semantic_tag::none, context, ec);
}
else
{
sink_.append(null_constant().data(), null_constant().size());
column_ += null_constant().size();
}
}
else if (value == std::numeric_limits<double>::infinity())
{
if (options_.enable_inf_to_num())
{
sink_.append(options_.inf_to_num().data(), options_.inf_to_num().length());
column_ += options_.inf_to_num().length();
}
else if (options_.enable_inf_to_str())
{
visit_string(options_.inf_to_str(), semantic_tag::none, context, ec);
}
else
{
sink_.append(null_constant().data(), null_constant().size());
column_ += null_constant().size();
}
}
else
{
if (options_.enable_neginf_to_num())
{
sink_.append(options_.neginf_to_num().data(), options_.neginf_to_num().length());
column_ += options_.neginf_to_num().length();
}
else if (options_.enable_neginf_to_str())
{
visit_string(options_.neginf_to_str(), semantic_tag::none, context, ec);
}
else
{
sink_.append(null_constant().data(), null_constant().size());
column_ += null_constant().size();
}
}
}
else
{
std::size_t length = fp_(value, sink_);
column_ += length;
}
end_value();
return true;
}
bool visit_int64(int64_t value,
semantic_tag,
const ser_context&,
std::error_code&) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
std::size_t length = jsoncons::detail::from_integer(value, sink_);
column_ += length;
end_value();
return true;
}
bool visit_uint64(uint64_t value,
semantic_tag,
const ser_context&,
std::error_code&) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
std::size_t length = jsoncons::detail::from_integer(value, sink_);
column_ += length;
end_value();
return true;
}
bool visit_bool(bool value, semantic_tag, const ser_context&, std::error_code&) override
{
if (!stack_.empty())
{
if (stack_.back().is_array())
{
begin_scalar_value();
}
if (!stack_.back().is_multi_line() && column_ >= options_.line_length_limit())
{
break_line();
}
}
if (value)
{
sink_.append(true_constant().data(), true_constant().size());
column_ += true_constant().size();
}
else
{
sink_.append(false_constant().data(), false_constant().size());
column_ += false_constant().size();
}
end_value();
return true;
}
void begin_scalar_value()
{
if (!stack_.empty())
{
if (stack_.back().count() > 0)
{
sink_.append(comma_str_.data(),comma_str_.length());
column_ += comma_str_.length();
}
if (stack_.back().is_multi_line() || stack_.back().is_indent_once())
{
stack_.back().new_line_after(true);
new_line();
}
}
}
void write_bigint_value(const string_view_type& sv)
{
switch (options_.bigint_format())
{
case bigint_chars_format::number:
{
sink_.append(sv.data(),sv.size());
column_ += sv.size();
break;
}
case bigint_chars_format::base64:
{
bigint n = bigint::from_string(sv.data(), sv.length());
bool is_neg = n < 0;
if (is_neg)
{
n = - n -1;
}
int signum;
std::vector<uint8_t> v;
n.write_bytes_be(signum, v);
sink_.push_back('\"');
if (is_neg)
{
sink_.push_back('~');
++column_;
}
std::size_t length = encode_base64(v.begin(), v.end(), sink_);
sink_.push_back('\"');
column_ += (length+2);
break;
}
case bigint_chars_format::base64url:
{
bigint n = bigint::from_string(sv.data(), sv.length());
bool is_neg = n < 0;
if (is_neg)
{
n = - n -1;
}
int signum;
std::vector<uint8_t> v;
n.write_bytes_be(signum, v);
sink_.push_back('\"');
if (is_neg)
{
sink_.push_back('~');
++column_;
}
std::size_t length = encode_base64url(v.begin(), v.end(), sink_);
sink_.push_back('\"');
column_ += (length+2);
break;
}
default:
{
sink_.push_back('\"');
sink_.append(sv.data(),sv.size());
sink_.push_back('\"');
column_ += (sv.size() + 2);
break;
}
}
}
void end_value()
{
if (!stack_.empty())
{
stack_.back().increment_count();
}
}
void indent()
{
indent_amount_ += static_cast<int>(options_.indent_size());
}
void unindent()
{
indent_amount_ -= static_cast<int>(options_.indent_size());
}
void new_line()
{
sink_.append(options_.new_line_chars().data(),options_.new_line_chars().length());
for (int i = 0; i < indent_amount_; ++i)
{
sink_.push_back(' ');
}
column_ = indent_amount_;
}
void new_line(std::size_t len)
{
sink_.append(options_.new_line_chars().data(),options_.new_line_chars().length());
for (std::size_t i = 0; i < len; ++i)
{
sink_.push_back(' ');
}
column_ = len;
}
void break_line()
{
stack_.back().new_line_after(true);
new_line();
}
};
template<class CharT,class Sink=jsoncons::stream_sink<CharT>,class Allocator=std::allocator<char>>
class basic_compact_json_encoder final : public basic_json_visitor<CharT>
{
static const std::array<CharT, 4>& null_constant()
{
static constexpr std::array<CharT,4> k{'n','u','l','l'};
return k;
}
static const std::array<CharT, 4>& true_constant()
{
static constexpr std::array<CharT,4> k{'t','r','u','e'};
return k;
}
static const std::array<CharT, 5>& false_constant()
{
static constexpr std::array<CharT,5> k{'f','a','l','s','e'};
return k;
}
public:
using allocator_type = Allocator;
using char_type = CharT;
using typename basic_json_visitor<CharT>::string_view_type;
using sink_type = Sink;
using string_type = typename basic_json_encode_options<CharT>::string_type;
private:
enum class container_type {object, array};
class encoding_context
{
container_type type_;
std::size_t count_;
public:
encoding_context(container_type type) noexcept
: type_(type), count_(0)
{
}
std::size_t count() const
{
return count_;
}
void increment_count()
{
++count_;
}
bool is_array() const
{
return type_ == container_type::array;
}
};
typedef typename std::allocator_traits<allocator_type>:: template rebind_alloc<encoding_context> encoding_context_allocator_type;
Sink sink_;
basic_json_encode_options<CharT> options_;
jsoncons::detail::write_double fp_;
std::vector<encoding_context,encoding_context_allocator_type> stack_;
int nesting_depth_;
// Noncopyable
basic_compact_json_encoder(const basic_compact_json_encoder&) = delete;
basic_compact_json_encoder& operator=(const basic_compact_json_encoder&) = delete;
public:
basic_compact_json_encoder(Sink&& sink,
const Allocator& alloc = Allocator())
: basic_compact_json_encoder(std::forward<Sink>(sink), basic_json_encode_options<CharT>(), alloc)
{
}
basic_compact_json_encoder(Sink&& sink,
const basic_json_encode_options<CharT>& options,
const Allocator& alloc = Allocator())
: sink_(std::forward<Sink>(sink)),
options_(options),
fp_(options.float_format(), options.precision()),
stack_(alloc),
nesting_depth_(0)
{
}
basic_compact_json_encoder(basic_compact_json_encoder&&) = default;
basic_compact_json_encoder& operator=(basic_compact_json_encoder&&) = default;
~basic_compact_json_encoder() noexcept
{
JSONCONS_TRY
{
sink_.flush();
}
JSONCONS_CATCH(...)
{
}
}
void reset()
{
stack_.clear();
nesting_depth_ = 0;
}
void reset(Sink&& sink)
{
sink_ = std::move(sink);
reset();
}
private:
// Implementing methods
void visit_flush() override
{
sink_.flush();
}
bool visit_begin_object(semantic_tag, const ser_context&, std::error_code& ec) override
{
if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth()))
{
ec = json_errc::max_nesting_depth_exceeded;
return false;
}
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
stack_.emplace_back(container_type::object);
sink_.push_back('{');
return true;
}
bool visit_end_object(const ser_context&, std::error_code&) override
{
JSONCONS_ASSERT(!stack_.empty());
--nesting_depth_;
stack_.pop_back();
sink_.push_back('}');
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_begin_array(semantic_tag, const ser_context&, std::error_code& ec) override
{
if (JSONCONS_UNLIKELY(++nesting_depth_ > options_.max_nesting_depth()))
{
ec = json_errc::max_nesting_depth_exceeded;
return false;
}
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
stack_.emplace_back(container_type::array);
sink_.push_back('[');
return true;
}
bool visit_end_array(const ser_context&, std::error_code&) override
{
JSONCONS_ASSERT(!stack_.empty());
--nesting_depth_;
stack_.pop_back();
sink_.push_back(']');
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_key(const string_view_type& name, const ser_context&, std::error_code&) override
{
if (!stack_.empty() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
sink_.push_back('\"');
jsoncons::detail::escape_string(name.data(), name.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_);
sink_.push_back('\"');
sink_.push_back(':');
return true;
}
bool visit_null(semantic_tag, const ser_context&, std::error_code&) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
sink_.append(null_constant().data(), null_constant().size());
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
void write_bigint_value(const string_view_type& sv)
{
switch (options_.bigint_format())
{
case bigint_chars_format::number:
{
sink_.append(sv.data(),sv.size());
break;
}
case bigint_chars_format::base64:
{
bigint n = bigint::from_string(sv.data(), sv.length());
bool is_neg = n < 0;
if (is_neg)
{
n = - n -1;
}
int signum;
std::vector<uint8_t> v;
n.write_bytes_be(signum, v);
sink_.push_back('\"');
if (is_neg)
{
sink_.push_back('~');
}
encode_base64(v.begin(), v.end(), sink_);
sink_.push_back('\"');
break;
}
case bigint_chars_format::base64url:
{
bigint n = bigint::from_string(sv.data(), sv.length());
bool is_neg = n < 0;
if (is_neg)
{
n = - n -1;
}
int signum;
std::vector<uint8_t> v;
n.write_bytes_be(signum, v);
sink_.push_back('\"');
if (is_neg)
{
sink_.push_back('~');
}
encode_base64url(v.begin(), v.end(), sink_);
sink_.push_back('\"');
break;
}
default:
{
sink_.push_back('\"');
sink_.append(sv.data(),sv.size());
sink_.push_back('\"');
break;
}
}
}
bool visit_string(const string_view_type& sv, semantic_tag tag, const ser_context&, std::error_code&) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
switch (tag)
{
case semantic_tag::bigint:
write_bigint_value(sv);
break;
default:
{
sink_.push_back('\"');
jsoncons::detail::escape_string(sv.data(), sv.length(),options_.escape_all_non_ascii(),options_.escape_solidus(),sink_);
sink_.push_back('\"');
break;
}
}
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_byte_string(const byte_string_view& b,
semantic_tag tag,
const ser_context&,
std::error_code&) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
byte_string_chars_format encoding_hint;
switch (tag)
{
case semantic_tag::base16:
encoding_hint = byte_string_chars_format::base16;
break;
case semantic_tag::base64:
encoding_hint = byte_string_chars_format::base64;
break;
case semantic_tag::base64url:
encoding_hint = byte_string_chars_format::base64url;
break;
default:
encoding_hint = byte_string_chars_format::none;
break;
}
byte_string_chars_format format = jsoncons::detail::resolve_byte_string_chars_format(options_.byte_string_format(),
encoding_hint,
byte_string_chars_format::base64url);
switch (format)
{
case byte_string_chars_format::base16:
{
sink_.push_back('\"');
encode_base16(b.begin(),b.end(),sink_);
sink_.push_back('\"');
break;
}
case byte_string_chars_format::base64:
{
sink_.push_back('\"');
encode_base64(b.begin(), b.end(), sink_);
sink_.push_back('\"');
break;
}
case byte_string_chars_format::base64url:
{
sink_.push_back('\"');
encode_base64url(b.begin(),b.end(),sink_);
sink_.push_back('\"');
break;
}
default:
{
JSONCONS_UNREACHABLE();
}
}
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_double(double value,
semantic_tag,
const ser_context& context,
std::error_code& ec) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
if (JSONCONS_UNLIKELY(!std::isfinite(value)))
{
if ((std::isnan)(value))
{
if (options_.enable_nan_to_num())
{
sink_.append(options_.nan_to_num().data(), options_.nan_to_num().length());
}
else if (options_.enable_nan_to_str())
{
visit_string(options_.nan_to_str(), semantic_tag::none, context, ec);
}
else
{
sink_.append(null_constant().data(), null_constant().size());
}
}
else if (value == std::numeric_limits<double>::infinity())
{
if (options_.enable_inf_to_num())
{
sink_.append(options_.inf_to_num().data(), options_.inf_to_num().length());
}
else if (options_.enable_inf_to_str())
{
visit_string(options_.inf_to_str(), semantic_tag::none, context, ec);
}
else
{
sink_.append(null_constant().data(), null_constant().size());
}
}
else
{
if (options_.enable_neginf_to_num())
{
sink_.append(options_.neginf_to_num().data(), options_.neginf_to_num().length());
}
else if (options_.enable_neginf_to_str())
{
visit_string(options_.neginf_to_str(), semantic_tag::none, context, ec);
}
else
{
sink_.append(null_constant().data(), null_constant().size());
}
}
}
else
{
fp_(value, sink_);
}
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_int64(int64_t value,
semantic_tag,
const ser_context&,
std::error_code&) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
jsoncons::detail::from_integer(value, sink_);
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_uint64(uint64_t value,
semantic_tag,
const ser_context&,
std::error_code&) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
jsoncons::detail::from_integer(value, sink_);
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
bool visit_bool(bool value, semantic_tag, const ser_context&, std::error_code&) override
{
if (!stack_.empty() && stack_.back().is_array() && stack_.back().count() > 0)
{
sink_.push_back(',');
}
if (value)
{
sink_.append(true_constant().data(), true_constant().size());
}
else
{
sink_.append(false_constant().data(), false_constant().size());
}
if (!stack_.empty())
{
stack_.back().increment_count();
}
return true;
}
};
using json_stream_encoder = basic_json_encoder<char,jsoncons::stream_sink<char>>;
using wjson_stream_encoder = basic_json_encoder<wchar_t,jsoncons::stream_sink<wchar_t>>;
using compact_json_stream_encoder = basic_compact_json_encoder<char,jsoncons::stream_sink<char>>;
using compact_wjson_stream_encoder = basic_compact_json_encoder<wchar_t,jsoncons::stream_sink<wchar_t>>;
using json_string_encoder = basic_json_encoder<char,jsoncons::string_sink<std::string>>;
using wjson_string_encoder = basic_json_encoder<wchar_t,jsoncons::string_sink<std::wstring>>;
using compact_json_string_encoder = basic_compact_json_encoder<char,jsoncons::string_sink<std::string>>;
using compact_wjson_string_encoder = basic_compact_json_encoder<wchar_t,jsoncons::string_sink<std::wstring>>;
#if !defined(JSONCONS_NO_DEPRECATED)
template<class CharT,class Sink=jsoncons::stream_sink<CharT>>
using basic_json_serializer = basic_json_encoder<CharT,Sink>;
template<class CharT,class Sink=jsoncons::stream_sink<CharT>>
using basic_json_compressed_serializer = basic_compact_json_encoder<CharT,Sink>;
template<class CharT,class Sink=jsoncons::stream_sink<CharT>>
using basic_json_compressed_encoder = basic_compact_json_encoder<CharT,Sink>;
JSONCONS_DEPRECATED_MSG("Instead, use compact_json_stream_encoder") typedef basic_compact_json_encoder<char,jsoncons::stream_sink<char>> json_compressed_stream_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_stream_encoder")typedef basic_compact_json_encoder<wchar_t,jsoncons::stream_sink<wchar_t>> wjson_compressed_stream_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use compact_json_string_encoder") typedef basic_compact_json_encoder<char,jsoncons::string_sink<char>> json_compressed_string_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_string_encoder")typedef basic_compact_json_encoder<wchar_t,jsoncons::string_sink<wchar_t>> wjson_compressed_string_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use json_stream_encoder") typedef json_stream_encoder json_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use wjson_stream_encoder") typedef wjson_stream_encoder wjson_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use compact_json_stream_encoder") typedef compact_json_stream_encoder compact_json_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_stream_encoder") typedef compact_wjson_stream_encoder wcompact_json_encoder;
JSONCONS_DEPRECATED_MSG("Instead, use json_stream_encoder") typedef basic_json_encoder<char,jsoncons::stream_sink<char>> json_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use wjson_stream_encoder") typedef basic_json_encoder<wchar_t,jsoncons::stream_sink<wchar_t>> wjson_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use compact_json_stream_encoder") typedef basic_compact_json_encoder<char,jsoncons::stream_sink<char>> json_compressed_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use compact_wjson_stream_encoder") typedef basic_compact_json_encoder<wchar_t,jsoncons::stream_sink<wchar_t>> wjson_compressed_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use json_string_encoder") typedef basic_json_encoder<char,jsoncons::string_sink<std::string>> json_string_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use wjson_string_encoder") typedef basic_json_encoder<wchar_t,jsoncons::string_sink<std::wstring>> wjson_string_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use compact_json_string_encoder") typedef basic_compact_json_encoder<char,jsoncons::string_sink<std::string>> json_compressed_string_serializer;
JSONCONS_DEPRECATED_MSG("Instead, use wcompact_json_string_encoder") typedef basic_compact_json_encoder<wchar_t,jsoncons::string_sink<std::wstring>> wjson_compressed_string_serializer;
#endif
} // namespace jsoncons
#endif