json test

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API Documentation at this revision

Comitter:
tgw
Date:
Fri Jan 26 06:05:31 2018 +0000
Commit message:
json

Changed in this revision

.gitignore Show annotated file Show diff for this revision Revisions of this file
README.md Show annotated file Show diff for this revision Revisions of this file
img/uvision.png Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/CMakeLists.txt Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/allocator.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/assertions.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/autolink.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/config.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/features.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/forwards.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/json.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/reader.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/value.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/version.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/include/json/writer.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/CMakeLists.txt Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/json_reader.cpp Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/json_tool.h Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/json_value.cpp Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/json_valueiterator.inl Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/json_writer.cpp Show annotated file Show diff for this revision Revisions of this file
jsoncpp/src/lib_json/version.h.in Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed-os.lib Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r 2ee762ea11b3 .gitignore
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/.gitignore	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,4 @@
+.build
+.mbed
+projectfiles
+*.py*
diff -r 000000000000 -r 2ee762ea11b3 README.md
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/README.md	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,87 @@
+# Getting started with Blinky on mbed OS
+
+This guide reviews the steps required to get Blinky working on an mbed OS platform.
+
+Please install [mbed CLI](https://github.com/ARMmbed/mbed-cli#installing-mbed-cli).
+
+## Import the example application
+
+From the command-line, import the example:
+
+```
+mbed import mbed-os-example-blinky
+cd mbed-os-example-blinky
+```
+
+### Now compile
+
+Invoke `mbed compile`, and specify the name of your platform and your favorite toolchain (`GCC_ARM`, `ARM`, `IAR`). For example, for the ARM Compiler 5:
+
+```
+mbed compile -m K64F -t ARM
+```
+
+Your PC may take a few minutes to compile your code. At the end, you see the following result:
+
+```
+[snip]
++----------------------------+-------+-------+------+
+| Module                     | .text | .data | .bss |
++----------------------------+-------+-------+------+
+| Misc                       | 13939 |    24 | 1372 |
+| core/hal                   | 16993 |    96 |  296 |
+| core/rtos                  |  7384 |    92 | 4204 |
+| features/FEATURE_IPV4      |    80 |     0 |  176 |
+| frameworks/greentea-client |  1830 |    60 |   44 |
+| frameworks/utest           |  2392 |   512 |  292 |
+| Subtotals                  | 42618 |   784 | 6384 |
++----------------------------+-------+-------+------+
+Allocated Heap: unknown
+Allocated Stack: unknown
+Total Static RAM memory (data + bss): 7168 bytes
+Total RAM memory (data + bss + heap + stack): 7168 bytes
+Total Flash memory (text + data + misc): 43402 bytes
+Image: .\.build\K64F\ARM\mbed-os-example-blinky.bin
+```
+
+### Program your board
+
+1. Connect your mbed device to the computer over USB.
+1. Copy the binary file to the mbed device.
+1. Press the reset button to start the program.
+
+The LED on your platform turns on and off.
+
+## Export the project to Keil MDK, and debug your application
+
+From the command-line, run the following command:
+
+```
+mbed export -m K64F -i uvision
+```
+
+To debug the application:
+
+1. Start uVision.
+1. Import the uVision project generated earlier.
+1. Compile your application, and generate an `.axf` file.
+1. Make sure uVision is configured to debug over CMSIS-DAP (From the Project menu > Options for Target '...' > Debug tab > Use CMSIS-DAP Debugger).
+1. Set breakpoints, and start a debug session.
+
+![Image of uVision](img/uvision.png)
+
+## Troubleshooting
+
+1. Make sure `mbed-cli` is working correctly and its version is `>1.0.0`
+
+ ```
+ mbed --version
+ ```
+
+ If not, you can update it:
+
+ ```
+ pip install mbed-cli --upgrade
+ ```
+
+2. If using Keil MDK, make sure you have a license installed. [MDK-Lite](http://www.keil.com/arm/mdk.asp) has a 32 KB restriction on code size.
\ No newline at end of file
diff -r 000000000000 -r 2ee762ea11b3 img/uvision.png
Binary file img/uvision.png has changed
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/CMakeLists.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/CMakeLists.txt	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,2 @@
+FILE(GLOB INCLUDE_FILES "json/*.h")
+INSTALL(FILES ${INCLUDE_FILES} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/json)
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/allocator.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/allocator.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,98 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_ALLOCATOR_H_INCLUDED
+#define CPPTL_JSON_ALLOCATOR_H_INCLUDED
+
+#include <cstring>
+#include <memory>
+
+#pragma pack(push, 8)
+
+namespace Json {
+template<typename T>
+class SecureAllocator {
+	public:
+		// Type definitions
+		using value_type      = T;
+		using pointer         = T*;
+		using const_pointer   = const T*;
+		using reference       = T&;
+		using const_reference = const T&;
+		using size_type       = std::size_t;
+		using difference_type = std::ptrdiff_t;
+
+		/**
+		 * Allocate memory for N items using the standard allocator.
+		 */
+		pointer allocate(size_type n) {
+			// allocate using "global operator new"
+			return static_cast<pointer>(::operator new(n * sizeof(T)));
+		}
+
+		/**
+		 * Release memory which was allocated for N items at pointer P.
+		 *
+		 * The memory block is filled with zeroes before being released.
+		 * The pointer argument is tagged as "volatile" to prevent the
+		 * compiler optimizing out this critical step.
+		 */
+		void deallocate(volatile pointer p, size_type n) {
+			std::memset(p, 0, n * sizeof(T));
+			// free using "global operator delete"
+			::operator delete(p);
+		}
+
+		/**
+		 * Construct an item in-place at pointer P.
+		 */
+		template<typename... Args>
+		void construct(pointer p, Args&&... args) {
+			// construct using "placement new" and "perfect forwarding"
+			::new (static_cast<void*>(p)) T(std::forward<Args>(args)...);
+		}
+
+		size_type max_size() const {
+			return size_t(-1) / sizeof(T);
+		}
+
+		pointer address( reference x ) const {
+			return std::addressof(x);
+		}
+
+		const_pointer address( const_reference x ) const {
+			return std::addressof(x);
+		}
+
+		/**
+		 * Destroy an item in-place at pointer P.
+		 */
+		void destroy(pointer p) {
+			// destroy using "explicit destructor"
+			p->~T();
+		}
+
+		// Boilerplate
+		SecureAllocator() {}
+		template<typename U> SecureAllocator(const SecureAllocator<U>&) {}
+		template<typename U> struct rebind { using other = SecureAllocator<U>; };
+};
+
+
+template<typename T, typename U>
+bool operator==(const SecureAllocator<T>&, const SecureAllocator<U>&) {
+	return true;
+}
+
+template<typename T, typename U>
+bool operator!=(const SecureAllocator<T>&, const SecureAllocator<U>&) {
+	return false;
+}
+
+} //namespace Json
+
+#pragma pack(pop)
+
+#endif // CPPTL_JSON_ALLOCATOR_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/assertions.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/assertions.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,54 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_ASSERTIONS_H_INCLUDED
+#define CPPTL_JSON_ASSERTIONS_H_INCLUDED
+
+#include <stdlib.h>
+#include <sstream>
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "config.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+/** It should not be possible for a maliciously designed file to
+ *  cause an abort() or seg-fault, so these macros are used only
+ *  for pre-condition violations and internal logic errors.
+ */
+#if JSON_USE_EXCEPTION
+
+// @todo <= add detail about condition in exception
+# define JSON_ASSERT(condition)                                                \
+  {if (!(condition)) {Json::throwLogicError( "assert json failed" );}}
+
+# define JSON_FAIL_MESSAGE(message)                                            \
+  {                                                                            \
+    JSONCPP_OSTRINGSTREAM oss; oss << message;                                    \
+    Json::throwLogicError(oss.str());                                          \
+    abort();                                                                   \
+  }
+
+#else // JSON_USE_EXCEPTION
+
+# define JSON_ASSERT(condition) assert(condition)
+
+// The call to assert() will show the failure message in debug builds. In
+// release builds we abort, for a core-dump or debugger.
+# define JSON_FAIL_MESSAGE(message)                                            \
+  {                                                                            \
+    JSONCPP_OSTRINGSTREAM oss; oss << message;                                    \
+    assert(false && oss.str().c_str());                                        \
+    abort();                                                                   \
+  }
+
+
+#endif
+
+#define JSON_ASSERT_MESSAGE(condition, message)                                \
+  if (!(condition)) {                                                          \
+    JSON_FAIL_MESSAGE(message);                                                \
+  }
+
+#endif // CPPTL_JSON_ASSERTIONS_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/autolink.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/autolink.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,25 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_AUTOLINK_H_INCLUDED
+#define JSON_AUTOLINK_H_INCLUDED
+
+#include "config.h"
+
+#ifdef JSON_IN_CPPTL
+#include <cpptl/cpptl_autolink.h>
+#endif
+
+#if !defined(JSON_NO_AUTOLINK) && !defined(JSON_DLL_BUILD) &&                  \
+    !defined(JSON_IN_CPPTL)
+#define CPPTL_AUTOLINK_NAME "json"
+#undef CPPTL_AUTOLINK_DLL
+#ifdef JSON_DLL
+#define CPPTL_AUTOLINK_DLL
+#endif
+#include "autolink.h"
+#endif
+
+#endif // JSON_AUTOLINK_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/config.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/config.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,187 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_CONFIG_H_INCLUDED
+#define JSON_CONFIG_H_INCLUDED
+#include <stddef.h>
+#include <string> //typedef String
+#include <stdint.h> //typedef int64_t, uint64_t
+
+/// If defined, indicates that json library is embedded in CppTL library.
+//# define JSON_IN_CPPTL 1
+
+/// If defined, indicates that json may leverage CppTL library
+//#  define JSON_USE_CPPTL 1
+/// If defined, indicates that cpptl vector based map should be used instead of
+/// std::map
+/// as Value container.
+//#  define JSON_USE_CPPTL_SMALLMAP 1
+
+// If non-zero, the library uses exceptions to report bad input instead of C
+// assertion macros. The default is to use exceptions.
+#ifndef JSON_USE_EXCEPTION
+#define JSON_USE_EXCEPTION 1
+#endif
+
+/// If defined, indicates that the source file is amalgamated
+/// to prevent private header inclusion.
+/// Remarks: it is automatically defined in the generated amalgamated header.
+// #define JSON_IS_AMALGAMATION
+
+#ifdef JSON_IN_CPPTL
+#include <cpptl/config.h>
+#ifndef JSON_USE_CPPTL
+#define JSON_USE_CPPTL 1
+#endif
+#endif
+
+#ifdef JSON_IN_CPPTL
+#define JSON_API CPPTL_API
+#elif defined(JSON_DLL_BUILD)
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#define JSON_API __declspec(dllexport)
+#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
+#endif // if defined(_MSC_VER)
+#elif defined(JSON_DLL)
+#if defined(_MSC_VER) || defined(__MINGW32__)
+#define JSON_API __declspec(dllimport)
+#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
+#endif // if defined(_MSC_VER)
+#endif // ifdef JSON_IN_CPPTL
+#if !defined(JSON_API)
+#define JSON_API
+#endif
+
+// If JSON_NO_INT64 is defined, then Json only support C++ "int" type for
+// integer
+// Storages, and 64 bits integer support is disabled.
+// #define JSON_NO_INT64 1
+
+#if defined(_MSC_VER) // MSVC
+#  if _MSC_VER <= 1200 // MSVC 6
+    // Microsoft Visual Studio 6 only support conversion from __int64 to double
+    // (no conversion from unsigned __int64).
+#    define JSON_USE_INT64_DOUBLE_CONVERSION 1
+    // Disable warning 4786 for VS6 caused by STL (identifier was truncated to '255'
+    // characters in the debug information)
+    // All projects I've ever seen with VS6 were using this globally (not bothering
+    // with pragma push/pop).
+#    pragma warning(disable : 4786)
+#  endif // MSVC 6
+
+#  if _MSC_VER >= 1500 // MSVC 2008
+    /// Indicates that the following function is deprecated.
+#    define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
+#  endif
+
+#endif // defined(_MSC_VER)
+
+// In c++11 the override keyword allows you to explicitly define that a function
+// is intended to override the base-class version.  This makes the code more
+// managable and fixes a set of common hard-to-find bugs.
+#if __cplusplus >= 201103L
+# define JSONCPP_OVERRIDE override
+# define JSONCPP_NOEXCEPT noexcept
+#elif defined(_MSC_VER) && _MSC_VER > 1600 && _MSC_VER < 1900
+# define JSONCPP_OVERRIDE override
+# define JSONCPP_NOEXCEPT throw()
+#elif defined(_MSC_VER) && _MSC_VER >= 1900
+# define JSONCPP_OVERRIDE override
+# define JSONCPP_NOEXCEPT noexcept
+#else
+# define JSONCPP_OVERRIDE
+# define JSONCPP_NOEXCEPT throw()
+#endif
+
+#ifndef JSON_HAS_RVALUE_REFERENCES
+
+#if defined(_MSC_VER) && _MSC_VER >= 1600 // MSVC >= 2010
+#define JSON_HAS_RVALUE_REFERENCES 1
+#endif // MSVC >= 2010
+
+#ifdef __clang__
+#if __has_feature(cxx_rvalue_references)
+#define JSON_HAS_RVALUE_REFERENCES 1
+#endif  // has_feature
+
+#elif defined __GNUC__ // not clang (gcc comes later since clang emulates gcc)
+#if defined(__GXX_EXPERIMENTAL_CXX0X__) || (__cplusplus >= 201103L)
+#define JSON_HAS_RVALUE_REFERENCES 1
+#endif  // GXX_EXPERIMENTAL
+
+#endif // __clang__ || __GNUC__
+
+#endif // not defined JSON_HAS_RVALUE_REFERENCES
+
+#ifndef JSON_HAS_RVALUE_REFERENCES
+#define JSON_HAS_RVALUE_REFERENCES 0
+#endif
+
+#ifdef __clang__
+#  if __has_extension(attribute_deprecated_with_message)
+#    define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
+#  endif
+#elif defined __GNUC__ // not clang (gcc comes later since clang emulates gcc)
+#  if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
+#    define JSONCPP_DEPRECATED(message)  __attribute__ ((deprecated(message)))
+#  elif (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
+#    define JSONCPP_DEPRECATED(message)  __attribute__((__deprecated__))
+#  endif  // GNUC version
+#endif // __clang__ || __GNUC__
+
+#if !defined(JSONCPP_DEPRECATED)
+#define JSONCPP_DEPRECATED(message)
+#endif // if !defined(JSONCPP_DEPRECATED)
+
+#if __GNUC__ >= 6
+#  define JSON_USE_INT64_DOUBLE_CONVERSION 1
+#endif
+
+#if !defined(JSON_IS_AMALGAMATION)
+
+# include "version.h"
+
+# if JSONCPP_USING_SECURE_MEMORY
+#  include "allocator.h" //typedef Allocator
+# endif
+
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+namespace Json {
+typedef int Int;
+typedef unsigned int UInt;
+#if defined(JSON_NO_INT64)
+typedef int LargestInt;
+typedef unsigned int LargestUInt;
+#undef JSON_HAS_INT64
+#else                 // if defined(JSON_NO_INT64)
+// For Microsoft Visual use specific types as long long is not supported
+#if defined(_MSC_VER) // Microsoft Visual Studio
+typedef __int64 Int64;
+typedef unsigned __int64 UInt64;
+#else                 // if defined(_MSC_VER) // Other platforms, use long long
+typedef int64_t Int64;
+typedef uint64_t UInt64;
+#endif // if defined(_MSC_VER)
+typedef Int64 LargestInt;
+typedef UInt64 LargestUInt;
+#define JSON_HAS_INT64
+#endif // if defined(JSON_NO_INT64)
+#if JSONCPP_USING_SECURE_MEMORY
+#define JSONCPP_STRING        std::basic_string<char, std::char_traits<char>, Json::SecureAllocator<char> >
+#define JSONCPP_OSTRINGSTREAM std::basic_ostringstream<char, std::char_traits<char>, Json::SecureAllocator<char> >
+#define JSONCPP_OSTREAM       std::basic_ostream<char, std::char_traits<char>>
+#define JSONCPP_ISTRINGSTREAM std::basic_istringstream<char, std::char_traits<char>, Json::SecureAllocator<char> >
+#define JSONCPP_ISTREAM       std::istream
+#else
+#define JSONCPP_STRING        std::string
+#define JSONCPP_OSTRINGSTREAM std::ostringstream
+#define JSONCPP_OSTREAM       std::ostream
+#define JSONCPP_ISTRINGSTREAM std::istringstream
+#define JSONCPP_ISTREAM       std::istream
+#endif // if JSONCPP_USING_SECURE_MEMORY
+} // end namespace Json
+
+#endif // JSON_CONFIG_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/features.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/features.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,61 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_FEATURES_H_INCLUDED
+#define CPPTL_JSON_FEATURES_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "forwards.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+#pragma pack(push, 8)
+
+namespace Json {
+
+/** \brief Configuration passed to reader and writer.
+ * This configuration object can be used to force the Reader or Writer
+ * to behave in a standard conforming way.
+ */
+class JSON_API Features {
+public:
+  /** \brief A configuration that allows all features and assumes all strings
+   * are UTF-8.
+   * - C & C++ comments are allowed
+   * - Root object can be any JSON value
+   * - Assumes Value strings are encoded in UTF-8
+   */
+  static Features all();
+
+  /** \brief A configuration that is strictly compatible with the JSON
+   * specification.
+   * - Comments are forbidden.
+   * - Root object must be either an array or an object value.
+   * - Assumes Value strings are encoded in UTF-8
+   */
+  static Features strictMode();
+
+  /** \brief Initialize the configuration like JsonConfig::allFeatures;
+   */
+  Features();
+
+  /// \c true if comments are allowed. Default: \c true.
+  bool allowComments_;
+
+  /// \c true if root must be either an array or an object value. Default: \c
+  /// false.
+  bool strictRoot_;
+
+  /// \c true if dropped null placeholders are allowed. Default: \c false.
+  bool allowDroppedNullPlaceholders_;
+
+  /// \c true if numeric object key are allowed. Default: \c false.
+  bool allowNumericKeys_;
+};
+
+} // namespace Json
+
+#pragma pack(pop)
+
+#endif // CPPTL_JSON_FEATURES_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/forwards.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/forwards.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,37 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_FORWARDS_H_INCLUDED
+#define JSON_FORWARDS_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "config.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+namespace Json {
+
+// writer.h
+class FastWriter;
+class StyledWriter;
+
+// reader.h
+class Reader;
+
+// features.h
+class Features;
+
+// value.h
+typedef unsigned int ArrayIndex;
+class StaticString;
+class Path;
+class PathArgument;
+class Value;
+class ValueIteratorBase;
+class ValueIterator;
+class ValueConstIterator;
+
+} // namespace Json
+
+#endif // JSON_FORWARDS_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/json.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/json.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,15 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_JSON_H_INCLUDED
+#define JSON_JSON_H_INCLUDED
+
+#include "autolink.h"
+#include "value.h"
+#include "reader.h"
+#include "writer.h"
+#include "features.h"
+
+#endif // JSON_JSON_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/reader.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/reader.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,411 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_READER_H_INCLUDED
+#define CPPTL_JSON_READER_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "features.h"
+#include "value.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <deque>
+#include <iosfwd>
+#include <stack>
+#include <string>
+#include <istream>
+
+// Disable warning C4251: <data member>: <type> needs to have dll-interface to
+// be used by...
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(push)
+#pragma warning(disable : 4251)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#pragma pack(push, 8)
+
+namespace Json {
+
+/** \brief Unserialize a <a HREF="http://www.json.org">JSON</a> document into a
+ *Value.
+ *
+ * \deprecated Use CharReader and CharReaderBuilder.
+ */
+class JSONCPP_DEPRECATED("Use CharReader and CharReaderBuilder instead") JSON_API Reader {
+public:
+  typedef char Char;
+  typedef const Char* Location;
+
+  /** \brief An error tagged with where in the JSON text it was encountered.
+   *
+   * The offsets give the [start, limit) range of bytes within the text. Note
+   * that this is bytes, not codepoints.
+   *
+   */
+  struct StructuredError {
+    ptrdiff_t offset_start;
+    ptrdiff_t offset_limit;
+    JSONCPP_STRING message;
+  };
+
+  /** \brief Constructs a Reader allowing all features
+   * for parsing.
+   */
+  Reader();
+
+  /** \brief Constructs a Reader allowing the specified feature set
+   * for parsing.
+   */
+  Reader(const Features& features);
+
+  /** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a>
+   * document.
+   * \param document UTF-8 encoded string containing the document to read.
+   * \param root [out] Contains the root value of the document if it was
+   *             successfully parsed.
+   * \param collectComments \c true to collect comment and allow writing them
+   * back during
+   *                        serialization, \c false to discard comments.
+   *                        This parameter is ignored if
+   * Features::allowComments_
+   *                        is \c false.
+   * \return \c true if the document was successfully parsed, \c false if an
+   * error occurred.
+   */
+  bool
+  parse(const std::string& document, Value& root, bool collectComments = true);
+
+  /** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a>
+   document.
+   * \param beginDoc Pointer on the beginning of the UTF-8 encoded string of the
+   document to read.
+   * \param endDoc Pointer on the end of the UTF-8 encoded string of the
+   document to read.
+   *               Must be >= beginDoc.
+   * \param root [out] Contains the root value of the document if it was
+   *             successfully parsed.
+   * \param collectComments \c true to collect comment and allow writing them
+   back during
+   *                        serialization, \c false to discard comments.
+   *                        This parameter is ignored if
+   Features::allowComments_
+   *                        is \c false.
+   * \return \c true if the document was successfully parsed, \c false if an
+   error occurred.
+   */
+  bool parse(const char* beginDoc,
+             const char* endDoc,
+             Value& root,
+             bool collectComments = true);
+
+  /// \brief Parse from input stream.
+  /// \see Json::operator>>(std::istream&, Json::Value&).
+  bool parse(JSONCPP_ISTREAM& is, Value& root, bool collectComments = true);
+
+  /** \brief Returns a user friendly string that list errors in the parsed
+   * document.
+   * \return Formatted error message with the list of errors with their location
+   * in
+   *         the parsed document. An empty string is returned if no error
+   * occurred
+   *         during parsing.
+   * \deprecated Use getFormattedErrorMessages() instead (typo fix).
+   */
+  JSONCPP_DEPRECATED("Use getFormattedErrorMessages() instead.")
+  JSONCPP_STRING getFormatedErrorMessages() const;
+
+  /** \brief Returns a user friendly string that list errors in the parsed
+   * document.
+   * \return Formatted error message with the list of errors with their location
+   * in
+   *         the parsed document. An empty string is returned if no error
+   * occurred
+   *         during parsing.
+   */
+  JSONCPP_STRING getFormattedErrorMessages() const;
+
+  /** \brief Returns a vector of structured erros encounted while parsing.
+   * \return A (possibly empty) vector of StructuredError objects. Currently
+   *         only one error can be returned, but the caller should tolerate
+   * multiple
+   *         errors.  This can occur if the parser recovers from a non-fatal
+   *         parse error and then encounters additional errors.
+   */
+  std::vector<StructuredError> getStructuredErrors() const;
+
+  /** \brief Add a semantic error message.
+   * \param value JSON Value location associated with the error
+   * \param message The error message.
+   * \return \c true if the error was successfully added, \c false if the
+   * Value offset exceeds the document size.
+   */
+  bool pushError(const Value& value, const JSONCPP_STRING& message);
+
+  /** \brief Add a semantic error message with extra context.
+   * \param value JSON Value location associated with the error
+   * \param message The error message.
+   * \param extra Additional JSON Value location to contextualize the error
+   * \return \c true if the error was successfully added, \c false if either
+   * Value offset exceeds the document size.
+   */
+  bool pushError(const Value& value, const JSONCPP_STRING& message, const Value& extra);
+
+  /** \brief Return whether there are any errors.
+   * \return \c true if there are no errors to report \c false if
+   * errors have occurred.
+   */
+  bool good() const;
+
+private:
+  enum TokenType {
+    tokenEndOfStream = 0,
+    tokenObjectBegin,
+    tokenObjectEnd,
+    tokenArrayBegin,
+    tokenArrayEnd,
+    tokenString,
+    tokenNumber,
+    tokenTrue,
+    tokenFalse,
+    tokenNull,
+    tokenArraySeparator,
+    tokenMemberSeparator,
+    tokenComment,
+    tokenError
+  };
+
+  class Token {
+  public:
+    TokenType type_;
+    Location start_;
+    Location end_;
+  };
+
+  class ErrorInfo {
+  public:
+    Token token_;
+    JSONCPP_STRING message_;
+    Location extra_;
+  };
+
+  typedef std::deque<ErrorInfo> Errors;
+
+  bool readToken(Token& token);
+  void skipSpaces();
+  bool match(Location pattern, int patternLength);
+  bool readComment();
+  bool readCStyleComment();
+  bool readCppStyleComment();
+  bool readString();
+  void readNumber();
+  bool readValue();
+  bool readObject(Token& token);
+  bool readArray(Token& token);
+  bool decodeNumber(Token& token);
+  bool decodeNumber(Token& token, Value& decoded);
+  bool decodeString(Token& token);
+  bool decodeString(Token& token, JSONCPP_STRING& decoded);
+  bool decodeDouble(Token& token);
+  bool decodeDouble(Token& token, Value& decoded);
+  bool decodeUnicodeCodePoint(Token& token,
+                              Location& current,
+                              Location end,
+                              unsigned int& unicode);
+  bool decodeUnicodeEscapeSequence(Token& token,
+                                   Location& current,
+                                   Location end,
+                                   unsigned int& unicode);
+  bool addError(const JSONCPP_STRING& message, Token& token, Location extra = 0);
+  bool recoverFromError(TokenType skipUntilToken);
+  bool addErrorAndRecover(const JSONCPP_STRING& message,
+                          Token& token,
+                          TokenType skipUntilToken);
+  void skipUntilSpace();
+  Value& currentValue();
+  Char getNextChar();
+  void
+  getLocationLineAndColumn(Location location, int& line, int& column) const;
+  JSONCPP_STRING getLocationLineAndColumn(Location location) const;
+  void addComment(Location begin, Location end, CommentPlacement placement);
+  void skipCommentTokens(Token& token);
+
+  static bool containsNewLine(Location begin, Location end);
+  static JSONCPP_STRING normalizeEOL(Location begin, Location end);
+
+  typedef std::stack<Value*> Nodes;
+  Nodes nodes_;
+  Errors errors_;
+  JSONCPP_STRING document_;
+  Location begin_;
+  Location end_;
+  Location current_;
+  Location lastValueEnd_;
+  Value* lastValue_;
+  JSONCPP_STRING commentsBefore_;
+  Features features_;
+  bool collectComments_;
+};  // Reader
+
+/** Interface for reading JSON from a char array.
+ */
+class JSON_API CharReader {
+public:
+  virtual ~CharReader() {}
+  /** \brief Read a Value from a <a HREF="http://www.json.org">JSON</a>
+   document.
+   * The document must be a UTF-8 encoded string containing the document to read.
+   *
+   * \param beginDoc Pointer on the beginning of the UTF-8 encoded string of the
+   document to read.
+   * \param endDoc Pointer on the end of the UTF-8 encoded string of the
+   document to read.
+   *        Must be >= beginDoc.
+   * \param root [out] Contains the root value of the document if it was
+   *             successfully parsed.
+   * \param errs [out] Formatted error messages (if not NULL)
+   *        a user friendly string that lists errors in the parsed
+   * document.
+   * \return \c true if the document was successfully parsed, \c false if an
+   error occurred.
+   */
+  virtual bool parse(
+      char const* beginDoc, char const* endDoc,
+      Value* root, JSONCPP_STRING* errs) = 0;
+
+  class JSON_API Factory {
+  public:
+    virtual ~Factory() {}
+    /** \brief Allocate a CharReader via operator new().
+     * \throw std::exception if something goes wrong (e.g. invalid settings)
+     */
+    virtual CharReader* newCharReader() const = 0;
+  };  // Factory
+};  // CharReader
+
+/** \brief Build a CharReader implementation.
+
+Usage:
+\code
+  using namespace Json;
+  CharReaderBuilder builder;
+  builder["collectComments"] = false;
+  Value value;
+  JSONCPP_STRING errs;
+  bool ok = parseFromStream(builder, std::cin, &value, &errs);
+\endcode
+*/
+class JSON_API CharReaderBuilder : public CharReader::Factory {
+public:
+  // Note: We use a Json::Value so that we can add data-members to this class
+  // without a major version bump.
+  /** Configuration of this builder.
+    These are case-sensitive.
+    Available settings (case-sensitive):
+    - `"collectComments": false or true`
+      - true to collect comment and allow writing them
+        back during serialization, false to discard comments.
+        This parameter is ignored if allowComments is false.
+    - `"allowComments": false or true`
+      - true if comments are allowed.
+    - `"strictRoot": false or true`
+      - true if root must be either an array or an object value
+    - `"allowDroppedNullPlaceholders": false or true`
+      - true if dropped null placeholders are allowed. (See StreamWriterBuilder.)
+    - `"allowNumericKeys": false or true`
+      - true if numeric object keys are allowed.
+    - `"allowSingleQuotes": false or true`
+      - true if '' are allowed for strings (both keys and values)
+    - `"stackLimit": integer`
+      - Exceeding stackLimit (recursive depth of `readValue()`) will
+        cause an exception.
+      - This is a security issue (seg-faults caused by deeply nested JSON),
+        so the default is low.
+    - `"failIfExtra": false or true`
+      - If true, `parse()` returns false when extra non-whitespace trails
+        the JSON value in the input string.
+    - `"rejectDupKeys": false or true`
+      - If true, `parse()` returns false when a key is duplicated within an object.
+    - `"allowSpecialFloats": false or true`
+      - If true, special float values (NaNs and infinities) are allowed 
+        and their values are lossfree restorable.
+
+    You can examine 'settings_` yourself
+    to see the defaults. You can also write and read them just like any
+    JSON Value.
+    \sa setDefaults()
+    */
+  Json::Value settings_;
+
+  CharReaderBuilder();
+  ~CharReaderBuilder() JSONCPP_OVERRIDE;
+
+  CharReader* newCharReader() const JSONCPP_OVERRIDE;
+
+  /** \return true if 'settings' are legal and consistent;
+   *   otherwise, indicate bad settings via 'invalid'.
+   */
+  bool validate(Json::Value* invalid) const;
+
+  /** A simple way to update a specific setting.
+   */
+  Value& operator[](JSONCPP_STRING key);
+
+  /** Called by ctor, but you can use this to reset settings_.
+   * \pre 'settings' != NULL (but Json::null is fine)
+   * \remark Defaults:
+   * \snippet src/lib_json/json_reader.cpp CharReaderBuilderDefaults
+   */
+  static void setDefaults(Json::Value* settings);
+  /** Same as old Features::strictMode().
+   * \pre 'settings' != NULL (but Json::null is fine)
+   * \remark Defaults:
+   * \snippet src/lib_json/json_reader.cpp CharReaderBuilderStrictMode
+   */
+  static void strictMode(Json::Value* settings);
+};
+
+/** Consume entire stream and use its begin/end.
+  * Someday we might have a real StreamReader, but for now this
+  * is convenient.
+  */
+bool JSON_API parseFromStream(
+    CharReader::Factory const&,
+    JSONCPP_ISTREAM&,
+    Value* root, std::string* errs);
+
+/** \brief Read from 'sin' into 'root'.
+
+ Always keep comments from the input JSON.
+
+ This can be used to read a file into a particular sub-object.
+ For example:
+ \code
+ Json::Value root;
+ cin >> root["dir"]["file"];
+ cout << root;
+ \endcode
+ Result:
+ \verbatim
+ {
+ "dir": {
+     "file": {
+     // The input stream JSON would be nested here.
+     }
+ }
+ }
+ \endverbatim
+ \throw std::exception on parse error.
+ \see Json::operator<<()
+*/
+JSON_API JSONCPP_ISTREAM& operator>>(JSONCPP_ISTREAM&, Value&);
+
+} // namespace Json
+
+#pragma pack(pop)
+
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(pop)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#endif // CPPTL_JSON_READER_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/value.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/value.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,888 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef CPPTL_JSON_H_INCLUDED
+#define CPPTL_JSON_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "forwards.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <string>
+#include <vector>
+#include <exception>
+
+#ifndef JSON_USE_CPPTL_SMALLMAP
+#include <map>
+#else
+#include <cpptl/smallmap.h>
+#endif
+#ifdef JSON_USE_CPPTL
+#include <cpptl/forwards.h>
+#endif
+
+//Conditional NORETURN attribute on the throw functions would:
+// a) suppress false positives from static code analysis
+// b) possibly improve optimization opportunities.
+#if !defined(JSONCPP_NORETURN)
+#  if defined(_MSC_VER)
+#    define JSONCPP_NORETURN __declspec(noreturn)
+#  elif defined(__GNUC__)
+#    define JSONCPP_NORETURN __attribute__ ((__noreturn__))
+#  else
+#    define JSONCPP_NORETURN
+#  endif
+#endif
+
+// Disable warning C4251: <data member>: <type> needs to have dll-interface to
+// be used by...
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(push)
+#pragma warning(disable : 4251)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#pragma pack(push, 8)
+
+/** \brief JSON (JavaScript Object Notation).
+ */
+namespace Json {
+
+/** Base class for all exceptions we throw.
+ *
+ * We use nothing but these internally. Of course, STL can throw others.
+ */
+class JSON_API Exception : public std::exception {
+public:
+  Exception(JSONCPP_STRING const& msg);
+  ~Exception() JSONCPP_NOEXCEPT JSONCPP_OVERRIDE;
+  char const* what() const JSONCPP_NOEXCEPT JSONCPP_OVERRIDE;
+protected:
+  JSONCPP_STRING msg_;
+};
+
+/** Exceptions which the user cannot easily avoid.
+ *
+ * E.g. out-of-memory (when we use malloc), stack-overflow, malicious input
+ *
+ * \remark derived from Json::Exception
+ */
+class JSON_API RuntimeError : public Exception {
+public:
+  RuntimeError(JSONCPP_STRING const& msg);
+};
+
+/** Exceptions thrown by JSON_ASSERT/JSON_FAIL macros.
+ *
+ * These are precondition-violations (user bugs) and internal errors (our bugs).
+ *
+ * \remark derived from Json::Exception
+ */
+class JSON_API LogicError : public Exception {
+public:
+  LogicError(JSONCPP_STRING const& msg);
+};
+
+/// used internally
+JSONCPP_NORETURN void throwRuntimeError(JSONCPP_STRING const& msg);
+/// used internally
+JSONCPP_NORETURN void throwLogicError(JSONCPP_STRING const& msg);
+
+/** \brief Type of the value held by a Value object.
+ */
+enum ValueType {
+  nullValue = 0, ///< 'null' value
+  intValue,      ///< signed integer value
+  uintValue,     ///< unsigned integer value
+  realValue,     ///< double value
+  stringValue,   ///< UTF-8 string value
+  booleanValue,  ///< bool value
+  arrayValue,    ///< array value (ordered list)
+  objectValue    ///< object value (collection of name/value pairs).
+};
+
+enum CommentPlacement {
+  commentBefore = 0,      ///< a comment placed on the line before a value
+  commentAfterOnSameLine, ///< a comment just after a value on the same line
+  commentAfter, ///< a comment on the line after a value (only make sense for
+  /// root value)
+  numberOfCommentPlacement
+};
+
+//# ifdef JSON_USE_CPPTL
+//   typedef CppTL::AnyEnumerator<const char *> EnumMemberNames;
+//   typedef CppTL::AnyEnumerator<const Value &> EnumValues;
+//# endif
+
+/** \brief Lightweight wrapper to tag static string.
+ *
+ * Value constructor and objectValue member assignment takes advantage of the
+ * StaticString and avoid the cost of string duplication when storing the
+ * string or the member name.
+ *
+ * Example of usage:
+ * \code
+ * Json::Value aValue( StaticString("some text") );
+ * Json::Value object;
+ * static const StaticString code("code");
+ * object[code] = 1234;
+ * \endcode
+ */
+class JSON_API StaticString {
+public:
+  explicit StaticString(const char* czstring) : c_str_(czstring) {}
+
+  operator const char*() const { return c_str_; }
+
+  const char* c_str() const { return c_str_; }
+
+private:
+  const char* c_str_;
+};
+
+/** \brief Represents a <a HREF="http://www.json.org">JSON</a> value.
+ *
+ * This class is a discriminated union wrapper that can represents a:
+ * - signed integer [range: Value::minInt - Value::maxInt]
+ * - unsigned integer (range: 0 - Value::maxUInt)
+ * - double
+ * - UTF-8 string
+ * - boolean
+ * - 'null'
+ * - an ordered list of Value
+ * - collection of name/value pairs (javascript object)
+ *
+ * The type of the held value is represented by a #ValueType and
+ * can be obtained using type().
+ *
+ * Values of an #objectValue or #arrayValue can be accessed using operator[]()
+ * methods.
+ * Non-const methods will automatically create the a #nullValue element
+ * if it does not exist.
+ * The sequence of an #arrayValue will be automatically resized and initialized
+ * with #nullValue. resize() can be used to enlarge or truncate an #arrayValue.
+ *
+ * The get() methods can be used to obtain default value in the case the
+ * required element does not exist.
+ *
+ * It is possible to iterate over the list of a #objectValue values using
+ * the getMemberNames() method.
+ *
+ * \note #Value string-length fit in size_t, but keys must be < 2^30.
+ * (The reason is an implementation detail.) A #CharReader will raise an
+ * exception if a bound is exceeded to avoid security holes in your app,
+ * but the Value API does *not* check bounds. That is the responsibility
+ * of the caller.
+ */
+class JSON_API Value {
+  friend class ValueIteratorBase;
+public:
+  typedef std::vector<JSONCPP_STRING> Members;
+  typedef ValueIterator iterator;
+  typedef ValueConstIterator const_iterator;
+  typedef Json::UInt UInt;
+  typedef Json::Int Int;
+#if defined(JSON_HAS_INT64)
+  typedef Json::UInt64 UInt64;
+  typedef Json::Int64 Int64;
+#endif // defined(JSON_HAS_INT64)
+  typedef Json::LargestInt LargestInt;
+  typedef Json::LargestUInt LargestUInt;
+  typedef Json::ArrayIndex ArrayIndex;
+
+  // Required for boost integration, e. g. BOOST_TEST
+  typedef std::string value_type;
+
+  static const Value& null;  ///< We regret this reference to a global instance; prefer the simpler Value().
+  static const Value& nullRef;  ///< just a kludge for binary-compatibility; same as null
+  static Value const& nullSingleton(); ///< Prefer this to null or nullRef.
+
+  /// Minimum signed integer value that can be stored in a Json::Value.
+  static const LargestInt minLargestInt;
+  /// Maximum signed integer value that can be stored in a Json::Value.
+  static const LargestInt maxLargestInt;
+  /// Maximum unsigned integer value that can be stored in a Json::Value.
+  static const LargestUInt maxLargestUInt;
+
+  /// Minimum signed int value that can be stored in a Json::Value.
+  static const Int minInt;
+  /// Maximum signed int value that can be stored in a Json::Value.
+  static const Int maxInt;
+  /// Maximum unsigned int value that can be stored in a Json::Value.
+  static const UInt maxUInt;
+
+#if defined(JSON_HAS_INT64)
+  /// Minimum signed 64 bits int value that can be stored in a Json::Value.
+  static const Int64 minInt64;
+  /// Maximum signed 64 bits int value that can be stored in a Json::Value.
+  static const Int64 maxInt64;
+  /// Maximum unsigned 64 bits int value that can be stored in a Json::Value.
+  static const UInt64 maxUInt64;
+#endif // defined(JSON_HAS_INT64)
+
+private:
+#ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
+  class CZString {
+  public:
+    enum DuplicationPolicy {
+      noDuplication = 0,
+      duplicate,
+      duplicateOnCopy
+    };
+    CZString(ArrayIndex index);
+    CZString(char const* str, unsigned length, DuplicationPolicy allocate);
+    CZString(CZString const& other);
+#if JSON_HAS_RVALUE_REFERENCES
+    CZString(CZString&& other);
+#endif
+    ~CZString();
+    CZString& operator=(const CZString& other);
+
+#if JSON_HAS_RVALUE_REFERENCES
+    CZString& operator=(CZString&& other);
+#endif
+
+    bool operator<(CZString const& other) const;
+    bool operator==(CZString const& other) const;
+    ArrayIndex index() const;
+    //const char* c_str() const; ///< \deprecated
+    char const* data() const;
+    unsigned length() const;
+    bool isStaticString() const;
+
+  private:
+    void swap(CZString& other);
+
+    struct StringStorage {
+      unsigned policy_: 2;
+      unsigned length_: 30; // 1GB max
+    };
+
+    char const* cstr_;  // actually, a prefixed string, unless policy is noDup
+    union {
+      ArrayIndex index_;
+      StringStorage storage_;
+    };
+  };
+
+public:
+#ifndef JSON_USE_CPPTL_SMALLMAP
+  typedef std::map<CZString, Value> ObjectValues;
+#else
+  typedef CppTL::SmallMap<CZString, Value> ObjectValues;
+#endif // ifndef JSON_USE_CPPTL_SMALLMAP
+#endif // ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
+
+public:
+  /** \brief Create a default Value of the given type.
+
+    This is a very useful constructor.
+    To create an empty array, pass arrayValue.
+    To create an empty object, pass objectValue.
+    Another Value can then be set to this one by assignment.
+This is useful since clear() and resize() will not alter types.
+
+    Examples:
+\code
+Json::Value null_value; // null
+Json::Value arr_value(Json::arrayValue); // []
+Json::Value obj_value(Json::objectValue); // {}
+\endcode
+  */
+  Value(ValueType type = nullValue);
+  Value(Int value);
+  Value(UInt value);
+#if defined(JSON_HAS_INT64)
+  Value(Int64 value);
+  Value(UInt64 value);
+#endif // if defined(JSON_HAS_INT64)
+  Value(double value);
+  Value(const char* value); ///< Copy til first 0. (NULL causes to seg-fault.)
+  Value(const char* begin, const char* end); ///< Copy all, incl zeroes.
+  /** \brief Constructs a value from a static string.
+
+   * Like other value string constructor but do not duplicate the string for
+   * internal storage. The given string must remain alive after the call to this
+   * constructor.
+   * \note This works only for null-terminated strings. (We cannot change the
+   *   size of this class, so we have nowhere to store the length,
+   *   which might be computed later for various operations.)
+   *
+   * Example of usage:
+   * \code
+   * static StaticString foo("some text");
+   * Json::Value aValue(foo);
+   * \endcode
+   */
+  Value(const StaticString& value);
+  Value(const JSONCPP_STRING& value); ///< Copy data() til size(). Embedded zeroes too.
+#ifdef JSON_USE_CPPTL
+  Value(const CppTL::ConstString& value);
+#endif
+  Value(bool value);
+  /// Deep copy.
+  Value(const Value& other);
+#if JSON_HAS_RVALUE_REFERENCES
+  /// Move constructor
+  Value(Value&& other);
+#endif
+  ~Value();
+
+  /// Deep copy, then swap(other).
+  /// \note Over-write existing comments. To preserve comments, use #swapPayload().
+  Value& operator=(Value other);
+
+  /// Swap everything.
+  void swap(Value& other);
+  /// Swap values but leave comments and source offsets in place.
+  void swapPayload(Value& other);
+
+  /// copy everything.
+  void copy(const Value& other);
+  /// copy values but leave comments and source offsets in place.
+  void copyPayload(const Value& other);
+
+  ValueType type() const;
+
+  /// Compare payload only, not comments etc.
+  bool operator<(const Value& other) const;
+  bool operator<=(const Value& other) const;
+  bool operator>=(const Value& other) const;
+  bool operator>(const Value& other) const;
+  bool operator==(const Value& other) const;
+  bool operator!=(const Value& other) const;
+  int compare(const Value& other) const;
+
+  const char* asCString() const; ///< Embedded zeroes could cause you trouble!
+#if JSONCPP_USING_SECURE_MEMORY
+  unsigned getCStringLength() const; //Allows you to understand the length of the CString
+#endif
+  JSONCPP_STRING asString() const; ///< Embedded zeroes are possible.
+  /** Get raw char* of string-value.
+   *  \return false if !string. (Seg-fault if str or end are NULL.)
+   */
+  bool getString(
+      char const** begin, char const** end) const;
+#ifdef JSON_USE_CPPTL
+  CppTL::ConstString asConstString() const;
+#endif
+  Int asInt() const;
+  UInt asUInt() const;
+#if defined(JSON_HAS_INT64)
+  Int64 asInt64() const;
+  UInt64 asUInt64() const;
+#endif // if defined(JSON_HAS_INT64)
+  LargestInt asLargestInt() const;
+  LargestUInt asLargestUInt() const;
+  float asFloat() const;
+  double asDouble() const;
+  bool asBool() const;
+
+  bool isNull() const;
+  bool isBool() const;
+  bool isInt() const;
+  bool isInt64() const;
+  bool isUInt() const;
+  bool isUInt64() const;
+  bool isIntegral() const;
+  bool isDouble() const;
+  bool isNumeric() const;
+  bool isString() const;
+  bool isArray() const;
+  bool isObject() const;
+
+  bool isConvertibleTo(ValueType other) const;
+
+  /// Number of values in array or object
+  ArrayIndex size() const;
+
+  /// \brief Return true if empty array, empty object, or null;
+  /// otherwise, false.
+  bool empty() const;
+
+  /// Return !isNull()
+  explicit operator bool() const;
+
+  /// Remove all object members and array elements.
+  /// \pre type() is arrayValue, objectValue, or nullValue
+  /// \post type() is unchanged
+  void clear();
+
+  /// Resize the array to size elements.
+  /// New elements are initialized to null.
+  /// May only be called on nullValue or arrayValue.
+  /// \pre type() is arrayValue or nullValue
+  /// \post type() is arrayValue
+  void resize(ArrayIndex size);
+
+  /// Access an array element (zero based index ).
+  /// If the array contains less than index element, then null value are
+  /// inserted
+  /// in the array so that its size is index+1.
+  /// (You may need to say 'value[0u]' to get your compiler to distinguish
+  ///  this from the operator[] which takes a string.)
+  Value& operator[](ArrayIndex index);
+
+  /// Access an array element (zero based index ).
+  /// If the array contains less than index element, then null value are
+  /// inserted
+  /// in the array so that its size is index+1.
+  /// (You may need to say 'value[0u]' to get your compiler to distinguish
+  ///  this from the operator[] which takes a string.)
+  Value& operator[](int index);
+
+  /// Access an array element (zero based index )
+  /// (You may need to say 'value[0u]' to get your compiler to distinguish
+  ///  this from the operator[] which takes a string.)
+  const Value& operator[](ArrayIndex index) const;
+
+  /// Access an array element (zero based index )
+  /// (You may need to say 'value[0u]' to get your compiler to distinguish
+  ///  this from the operator[] which takes a string.)
+  const Value& operator[](int index) const;
+
+  /// If the array contains at least index+1 elements, returns the element
+  /// value,
+  /// otherwise returns defaultValue.
+  Value get(ArrayIndex index, const Value& defaultValue) const;
+  /// Return true if index < size().
+  bool isValidIndex(ArrayIndex index) const;
+  /// \brief Append value to array at the end.
+  ///
+  /// Equivalent to jsonvalue[jsonvalue.size()] = value;
+  Value& append(const Value& value);
+
+#if JSON_HAS_RVALUE_REFERENCES
+  Value& append(Value&& value);
+#endif
+
+  /// Access an object value by name, create a null member if it does not exist.
+  /// \note Because of our implementation, keys are limited to 2^30 -1 chars.
+  ///  Exceeding that will cause an exception.
+  Value& operator[](const char* key);
+  /// Access an object value by name, returns null if there is no member with
+  /// that name.
+  const Value& operator[](const char* key) const;
+  /// Access an object value by name, create a null member if it does not exist.
+  /// \param key may contain embedded nulls.
+  Value& operator[](const JSONCPP_STRING& key);
+  /// Access an object value by name, returns null if there is no member with
+  /// that name.
+  /// \param key may contain embedded nulls.
+  const Value& operator[](const JSONCPP_STRING& key) const;
+  /** \brief Access an object value by name, create a null member if it does not
+   exist.
+
+   * If the object has no entry for that name, then the member name used to store
+   * the new entry is not duplicated.
+   * Example of use:
+   * \code
+   * Json::Value object;
+   * static const StaticString code("code");
+   * object[code] = 1234;
+   * \endcode
+   */
+  Value& operator[](const StaticString& key);
+#ifdef JSON_USE_CPPTL
+  /// Access an object value by name, create a null member if it does not exist.
+  Value& operator[](const CppTL::ConstString& key);
+  /// Access an object value by name, returns null if there is no member with
+  /// that name.
+  const Value& operator[](const CppTL::ConstString& key) const;
+#endif
+  /// Return the member named key if it exist, defaultValue otherwise.
+  /// \note deep copy
+  Value get(const char* key, const Value& defaultValue) const;
+  /// Return the member named key if it exist, defaultValue otherwise.
+  /// \note deep copy
+  /// \note key may contain embedded nulls.
+  Value get(const char* begin, const char* end, const Value& defaultValue) const;
+  /// Return the member named key if it exist, defaultValue otherwise.
+  /// \note deep copy
+  /// \param key may contain embedded nulls.
+  Value get(const JSONCPP_STRING& key, const Value& defaultValue) const;
+#ifdef JSON_USE_CPPTL
+  /// Return the member named key if it exist, defaultValue otherwise.
+  /// \note deep copy
+  Value get(const CppTL::ConstString& key, const Value& defaultValue) const;
+#endif
+  /// Most general and efficient version of isMember()const, get()const,
+  /// and operator[]const
+  /// \note As stated elsewhere, behavior is undefined if (end-begin) >= 2^30
+  Value const* find(char const* begin, char const* end) const;
+  /// Most general and efficient version of object-mutators.
+  /// \note As stated elsewhere, behavior is undefined if (end-begin) >= 2^30
+  /// \return non-zero, but JSON_ASSERT if this is neither object nor nullValue.
+  Value const* demand(char const* begin, char const* end);
+  /// \brief Remove and return the named member.
+  ///
+  /// Do nothing if it did not exist.
+  /// \return the removed Value, or null.
+  /// \pre type() is objectValue or nullValue
+  /// \post type() is unchanged
+  /// \deprecated
+  void removeMember(const char* key);
+  /// Same as removeMember(const char*)
+  /// \param key may contain embedded nulls.
+  /// \deprecated
+  void removeMember(const JSONCPP_STRING& key);
+  /// Same as removeMember(const char* begin, const char* end, Value* removed),
+  /// but 'key' is null-terminated.
+  bool removeMember(const char* key, Value* removed);
+  /** \brief Remove the named map member.
+
+      Update 'removed' iff removed.
+      \param key may contain embedded nulls.
+      \return true iff removed (no exceptions)
+  */
+  bool removeMember(JSONCPP_STRING const& key, Value* removed);
+  /// Same as removeMember(JSONCPP_STRING const& key, Value* removed)
+  bool removeMember(const char* begin, const char* end, Value* removed);
+  /** \brief Remove the indexed array element.
+
+      O(n) expensive operations.
+      Update 'removed' iff removed.
+      \return true iff removed (no exceptions)
+  */
+  bool removeIndex(ArrayIndex i, Value* removed);
+
+  /// Return true if the object has a member named key.
+  /// \note 'key' must be null-terminated.
+  bool isMember(const char* key) const;
+  /// Return true if the object has a member named key.
+  /// \param key may contain embedded nulls.
+  bool isMember(const JSONCPP_STRING& key) const;
+  /// Same as isMember(JSONCPP_STRING const& key)const
+  bool isMember(const char* begin, const char* end) const;
+#ifdef JSON_USE_CPPTL
+  /// Return true if the object has a member named key.
+  bool isMember(const CppTL::ConstString& key) const;
+#endif
+
+  /// \brief Return a list of the member names.
+  ///
+  /// If null, return an empty list.
+  /// \pre type() is objectValue or nullValue
+  /// \post if type() was nullValue, it remains nullValue
+  Members getMemberNames() const;
+
+  //# ifdef JSON_USE_CPPTL
+  //      EnumMemberNames enumMemberNames() const;
+  //      EnumValues enumValues() const;
+  //# endif
+
+  /// \deprecated Always pass len.
+  JSONCPP_DEPRECATED("Use setComment(JSONCPP_STRING const&) instead.")
+  void setComment(const char* comment, CommentPlacement placement);
+  /// Comments must be //... or /* ... */
+  void setComment(const char* comment, size_t len, CommentPlacement placement);
+  /// Comments must be //... or /* ... */
+  void setComment(const JSONCPP_STRING& comment, CommentPlacement placement);
+  bool hasComment(CommentPlacement placement) const;
+  /// Include delimiters and embedded newlines.
+  JSONCPP_STRING getComment(CommentPlacement placement) const;
+
+  JSONCPP_STRING toStyledString() const;
+
+  const_iterator begin() const;
+  const_iterator end() const;
+
+  iterator begin();
+  iterator end();
+
+  // Accessors for the [start, limit) range of bytes within the JSON text from
+  // which this value was parsed, if any.
+  void setOffsetStart(ptrdiff_t start);
+  void setOffsetLimit(ptrdiff_t limit);
+  ptrdiff_t getOffsetStart() const;
+  ptrdiff_t getOffsetLimit() const;
+
+private:
+  void initBasic(ValueType type, bool allocated = false);
+
+  Value& resolveReference(const char* key);
+  Value& resolveReference(const char* key, const char* end);
+
+  struct CommentInfo {
+    CommentInfo();
+    ~CommentInfo();
+
+    void setComment(const char* text, size_t len);
+
+    char* comment_;
+  };
+
+  // struct MemberNamesTransform
+  //{
+  //   typedef const char *result_type;
+  //   const char *operator()( const CZString &name ) const
+  //   {
+  //      return name.c_str();
+  //   }
+  //};
+
+  union ValueHolder {
+    LargestInt int_;
+    LargestUInt uint_;
+    double real_;
+    bool bool_;
+    char* string_;  // actually ptr to unsigned, followed by str, unless !allocated_
+    ObjectValues* map_;
+  } value_;
+  ValueType type_ : 8;
+  unsigned int allocated_ : 1; // Notes: if declared as bool, bitfield is useless.
+                               // If not allocated_, string_ must be null-terminated.
+  CommentInfo* comments_;
+
+  // [start, limit) byte offsets in the source JSON text from which this Value
+  // was extracted.
+  ptrdiff_t start_;
+  ptrdiff_t limit_;
+};
+
+/** \brief Experimental and untested: represents an element of the "path" to
+ * access a node.
+ */
+class JSON_API PathArgument {
+public:
+  friend class Path;
+
+  PathArgument();
+  PathArgument(ArrayIndex index);
+  PathArgument(const char* key);
+  PathArgument(const JSONCPP_STRING& key);
+
+private:
+  enum Kind {
+    kindNone = 0,
+    kindIndex,
+    kindKey
+  };
+  JSONCPP_STRING key_;
+  ArrayIndex index_;
+  Kind kind_;
+};
+
+/** \brief Experimental and untested: represents a "path" to access a node.
+ *
+ * Syntax:
+ * - "." => root node
+ * - ".[n]" => elements at index 'n' of root node (an array value)
+ * - ".name" => member named 'name' of root node (an object value)
+ * - ".name1.name2.name3"
+ * - ".[0][1][2].name1[3]"
+ * - ".%" => member name is provided as parameter
+ * - ".[%]" => index is provied as parameter
+ */
+class JSON_API Path {
+public:
+  Path(const JSONCPP_STRING& path,
+       const PathArgument& a1 = PathArgument(),
+       const PathArgument& a2 = PathArgument(),
+       const PathArgument& a3 = PathArgument(),
+       const PathArgument& a4 = PathArgument(),
+       const PathArgument& a5 = PathArgument());
+
+  const Value& resolve(const Value& root) const;
+  Value resolve(const Value& root, const Value& defaultValue) const;
+  /// Creates the "path" to access the specified node and returns a reference on
+  /// the node.
+  Value& make(Value& root) const;
+
+private:
+  typedef std::vector<const PathArgument*> InArgs;
+  typedef std::vector<PathArgument> Args;
+
+  void makePath(const JSONCPP_STRING& path, const InArgs& in);
+  void addPathInArg(const JSONCPP_STRING& path,
+                    const InArgs& in,
+                    InArgs::const_iterator& itInArg,
+                    PathArgument::Kind kind);
+  void invalidPath(const JSONCPP_STRING& path, int location);
+
+  Args args_;
+};
+
+/** \brief base class for Value iterators.
+ *
+ */
+class JSON_API ValueIteratorBase {
+public:
+  typedef std::bidirectional_iterator_tag iterator_category;
+  typedef unsigned int size_t;
+  typedef int difference_type;
+  typedef ValueIteratorBase SelfType;
+
+  bool operator==(const SelfType& other) const { return isEqual(other); }
+
+  bool operator!=(const SelfType& other) const { return !isEqual(other); }
+
+  difference_type operator-(const SelfType& other) const {
+    return other.computeDistance(*this);
+  }
+
+  /// Return either the index or the member name of the referenced value as a
+  /// Value.
+  Value key() const;
+
+  /// Return the index of the referenced Value, or -1 if it is not an arrayValue.
+  UInt index() const;
+
+  /// Return the member name of the referenced Value, or "" if it is not an
+  /// objectValue.
+  /// \note Avoid `c_str()` on result, as embedded zeroes are possible.
+  JSONCPP_STRING name() const;
+
+  /// Return the member name of the referenced Value. "" if it is not an
+  /// objectValue.
+  /// \deprecated This cannot be used for UTF-8 strings, since there can be embedded nulls.
+  JSONCPP_DEPRECATED("Use `key = name();` instead.")
+  char const* memberName() const;
+  /// Return the member name of the referenced Value, or NULL if it is not an
+  /// objectValue.
+  /// \note Better version than memberName(). Allows embedded nulls.
+  char const* memberName(char const** end) const;
+
+protected:
+  Value& deref() const;
+
+  void increment();
+
+  void decrement();
+
+  difference_type computeDistance(const SelfType& other) const;
+
+  bool isEqual(const SelfType& other) const;
+
+  void copy(const SelfType& other);
+
+private:
+  Value::ObjectValues::iterator current_;
+  // Indicates that iterator is for a null value.
+  bool isNull_;
+
+public:
+  // For some reason, BORLAND needs these at the end, rather
+  // than earlier. No idea why.
+  ValueIteratorBase();
+  explicit ValueIteratorBase(const Value::ObjectValues::iterator& current);
+};
+
+/** \brief const iterator for object and array value.
+ *
+ */
+class JSON_API ValueConstIterator : public ValueIteratorBase {
+  friend class Value;
+
+public:
+  typedef const Value value_type;
+  //typedef unsigned int size_t;
+  //typedef int difference_type;
+  typedef const Value& reference;
+  typedef const Value* pointer;
+  typedef ValueConstIterator SelfType;
+
+  ValueConstIterator();
+  ValueConstIterator(ValueIterator const& other);
+
+private:
+/*! \internal Use by Value to create an iterator.
+ */
+  explicit ValueConstIterator(const Value::ObjectValues::iterator& current);
+public:
+  SelfType& operator=(const ValueIteratorBase& other);
+
+  SelfType operator++(int) {
+    SelfType temp(*this);
+    ++*this;
+    return temp;
+  }
+
+  SelfType operator--(int) {
+    SelfType temp(*this);
+    --*this;
+    return temp;
+  }
+
+  SelfType& operator--() {
+    decrement();
+    return *this;
+  }
+
+  SelfType& operator++() {
+    increment();
+    return *this;
+  }
+
+  reference operator*() const { return deref(); }
+
+  pointer operator->() const { return &deref(); }
+};
+
+/** \brief Iterator for object and array value.
+ */
+class JSON_API ValueIterator : public ValueIteratorBase {
+  friend class Value;
+
+public:
+  typedef Value value_type;
+  typedef unsigned int size_t;
+  typedef int difference_type;
+  typedef Value& reference;
+  typedef Value* pointer;
+  typedef ValueIterator SelfType;
+
+  ValueIterator();
+  explicit ValueIterator(const ValueConstIterator& other);
+  ValueIterator(const ValueIterator& other);
+
+private:
+/*! \internal Use by Value to create an iterator.
+ */
+  explicit ValueIterator(const Value::ObjectValues::iterator& current);
+public:
+  SelfType& operator=(const SelfType& other);
+
+  SelfType operator++(int) {
+    SelfType temp(*this);
+    ++*this;
+    return temp;
+  }
+
+  SelfType operator--(int) {
+    SelfType temp(*this);
+    --*this;
+    return temp;
+  }
+
+  SelfType& operator--() {
+    decrement();
+    return *this;
+  }
+
+  SelfType& operator++() {
+    increment();
+    return *this;
+  }
+
+  reference operator*() const { return deref(); }
+
+  pointer operator->() const { return &deref(); }
+};
+
+} // namespace Json
+
+
+namespace std {
+/// Specialize std::swap() for Json::Value.
+template<>
+inline void swap(Json::Value& a, Json::Value& b) { a.swap(b); }
+}
+
+#pragma pack(pop)
+
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(pop)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#endif // CPPTL_JSON_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/version.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/version.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,20 @@
+// DO NOT EDIT. This file (and "version") is generated by CMake.
+// Run CMake configure step to update it.
+#ifndef JSON_VERSION_H_INCLUDED
+# define JSON_VERSION_H_INCLUDED
+
+# define JSONCPP_VERSION_STRING "1.8.4"
+# define JSONCPP_VERSION_MAJOR 1
+# define JSONCPP_VERSION_MINOR 8
+# define JSONCPP_VERSION_PATCH 4
+# define JSONCPP_VERSION_QUALIFIER
+# define JSONCPP_VERSION_HEXA ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) | (JSONCPP_VERSION_PATCH << 8))
+
+#ifdef JSONCPP_USING_SECURE_MEMORY
+#undef JSONCPP_USING_SECURE_MEMORY
+#endif
+#define JSONCPP_USING_SECURE_MEMORY 0
+// If non-zero, the library zeroes any memory that it has allocated before
+// it frees its memory.
+
+#endif // JSON_VERSION_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/include/json/writer.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/include/json/writer.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,357 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef JSON_WRITER_H_INCLUDED
+#define JSON_WRITER_H_INCLUDED
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include "value.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <vector>
+#include <string>
+#include <ostream>
+
+// Disable warning C4251: <data member>: <type> needs to have dll-interface to
+// be used by...
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING) && defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable : 4251)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#pragma pack(push, 8)
+
+namespace Json {
+
+class Value;
+
+/**
+
+Usage:
+\code
+  using namespace Json;
+  void writeToStdout(StreamWriter::Factory const& factory, Value const& value) {
+    std::unique_ptr<StreamWriter> const writer(
+      factory.newStreamWriter());
+    writer->write(value, &std::cout);
+    std::cout << std::endl;  // add lf and flush
+  }
+\endcode
+*/
+class JSON_API StreamWriter {
+protected:
+  JSONCPP_OSTREAM* sout_;  // not owned; will not delete
+public:
+  StreamWriter();
+  virtual ~StreamWriter();
+  /** Write Value into document as configured in sub-class.
+      Do not take ownership of sout, but maintain a reference during function.
+      \pre sout != NULL
+      \return zero on success (For now, we always return zero, so check the stream instead.)
+      \throw std::exception possibly, depending on configuration
+   */
+  virtual int write(Value const& root, JSONCPP_OSTREAM* sout) = 0;
+
+  /** \brief A simple abstract factory.
+   */
+  class JSON_API Factory {
+  public:
+    virtual ~Factory();
+    /** \brief Allocate a CharReader via operator new().
+     * \throw std::exception if something goes wrong (e.g. invalid settings)
+     */
+    virtual StreamWriter* newStreamWriter() const = 0;
+  };  // Factory
+};  // StreamWriter
+
+/** \brief Write into stringstream, then return string, for convenience.
+ * A StreamWriter will be created from the factory, used, and then deleted.
+ */
+JSONCPP_STRING JSON_API writeString(StreamWriter::Factory const& factory, Value const& root);
+
+
+/** \brief Build a StreamWriter implementation.
+
+Usage:
+\code
+  using namespace Json;
+  Value value = ...;
+  StreamWriterBuilder builder;
+  builder["commentStyle"] = "None";
+  builder["indentation"] = "   ";  // or whatever you like
+  std::unique_ptr<Json::StreamWriter> writer(
+      builder.newStreamWriter());
+  writer->write(value, &std::cout);
+  std::cout << std::endl;  // add lf and flush
+\endcode
+*/
+class JSON_API StreamWriterBuilder : public StreamWriter::Factory {
+public:
+  // Note: We use a Json::Value so that we can add data-members to this class
+  // without a major version bump.
+  /** Configuration of this builder.
+    Available settings (case-sensitive):
+    - "commentStyle": "None" or "All"
+    - "indentation":  "<anything>"
+    - "enableYAMLCompatibility": false or true
+      - slightly change the whitespace around colons
+    - "dropNullPlaceholders": false or true
+      - Drop the "null" string from the writer's output for nullValues.
+        Strictly speaking, this is not valid JSON. But when the output is being
+        fed to a browser's JavaScript, it makes for smaller output and the
+        browser can handle the output just fine.
+    - "useSpecialFloats": false or true
+      - If true, outputs non-finite floating point values in the following way:
+        NaN values as "NaN", positive infinity as "Infinity", and negative infinity
+        as "-Infinity".
+
+    You can examine 'settings_` yourself
+    to see the defaults. You can also write and read them just like any
+    JSON Value.
+    \sa setDefaults()
+    */
+  Json::Value settings_;
+
+  StreamWriterBuilder();
+  ~StreamWriterBuilder() JSONCPP_OVERRIDE;
+
+  /**
+   * \throw std::exception if something goes wrong (e.g. invalid settings)
+   */
+  StreamWriter* newStreamWriter() const JSONCPP_OVERRIDE;
+
+  /** \return true if 'settings' are legal and consistent;
+   *   otherwise, indicate bad settings via 'invalid'.
+   */
+  bool validate(Json::Value* invalid) const;
+  /** A simple way to update a specific setting.
+   */
+  Value& operator[](JSONCPP_STRING key);
+
+  /** Called by ctor, but you can use this to reset settings_.
+   * \pre 'settings' != NULL (but Json::null is fine)
+   * \remark Defaults:
+   * \snippet src/lib_json/json_writer.cpp StreamWriterBuilderDefaults
+   */
+  static void setDefaults(Json::Value* settings);
+};
+
+/** \brief Abstract class for writers.
+ * \deprecated Use StreamWriter. (And really, this is an implementation detail.)
+ */
+class JSONCPP_DEPRECATED("Use StreamWriter instead") JSON_API Writer {
+public:
+  virtual ~Writer();
+
+  virtual JSONCPP_STRING write(const Value& root) = 0;
+};
+
+/** \brief Outputs a Value in <a HREF="http://www.json.org">JSON</a> format
+ *without formatting (not human friendly).
+ *
+ * The JSON document is written in a single line. It is not intended for 'human'
+ *consumption,
+ * but may be usefull to support feature such as RPC where bandwith is limited.
+ * \sa Reader, Value
+ * \deprecated Use StreamWriterBuilder.
+ */
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4996) // Deriving from deprecated class
+#endif
+class JSONCPP_DEPRECATED("Use StreamWriterBuilder instead") JSON_API FastWriter : public Writer {
+public:
+  FastWriter();
+  ~FastWriter() JSONCPP_OVERRIDE {}
+
+  void enableYAMLCompatibility();
+
+  /** \brief Drop the "null" string from the writer's output for nullValues.
+   * Strictly speaking, this is not valid JSON. But when the output is being
+   * fed to a browser's JavaScript, it makes for smaller output and the
+   * browser can handle the output just fine.
+   */
+  void dropNullPlaceholders();
+
+  void omitEndingLineFeed();
+
+public: // overridden from Writer
+  JSONCPP_STRING write(const Value& root) JSONCPP_OVERRIDE;
+
+private:
+  void writeValue(const Value& value);
+
+  JSONCPP_STRING document_;
+  bool yamlCompatibilityEnabled_;
+  bool dropNullPlaceholders_;
+  bool omitEndingLineFeed_;
+};
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
+/** \brief Writes a Value in <a HREF="http://www.json.org">JSON</a> format in a
+ *human friendly way.
+ *
+ * The rules for line break and indent are as follow:
+ * - Object value:
+ *     - if empty then print {} without indent and line break
+ *     - if not empty the print '{', line break & indent, print one value per
+ *line
+ *       and then unindent and line break and print '}'.
+ * - Array value:
+ *     - if empty then print [] without indent and line break
+ *     - if the array contains no object value, empty array or some other value
+ *types,
+ *       and all the values fit on one lines, then print the array on a single
+ *line.
+ *     - otherwise, it the values do not fit on one line, or the array contains
+ *       object or non empty array, then print one value per line.
+ *
+ * If the Value have comments then they are outputed according to their
+ *#CommentPlacement.
+ *
+ * \sa Reader, Value, Value::setComment()
+ * \deprecated Use StreamWriterBuilder.
+ */
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4996) // Deriving from deprecated class
+#endif
+class JSONCPP_DEPRECATED("Use StreamWriterBuilder instead") JSON_API StyledWriter : public Writer {
+public:
+  StyledWriter();
+  ~StyledWriter() JSONCPP_OVERRIDE {}
+
+public: // overridden from Writer
+  /** \brief Serialize a Value in <a HREF="http://www.json.org">JSON</a> format.
+   * \param root Value to serialize.
+   * \return String containing the JSON document that represents the root value.
+   */
+  JSONCPP_STRING write(const Value& root) JSONCPP_OVERRIDE;
+
+private:
+  void writeValue(const Value& value);
+  void writeArrayValue(const Value& value);
+  bool isMultilineArray(const Value& value);
+  void pushValue(const JSONCPP_STRING& value);
+  void writeIndent();
+  void writeWithIndent(const JSONCPP_STRING& value);
+  void indent();
+  void unindent();
+  void writeCommentBeforeValue(const Value& root);
+  void writeCommentAfterValueOnSameLine(const Value& root);
+  bool hasCommentForValue(const Value& value);
+  static JSONCPP_STRING normalizeEOL(const JSONCPP_STRING& text);
+
+  typedef std::vector<JSONCPP_STRING> ChildValues;
+
+  ChildValues childValues_;
+  JSONCPP_STRING document_;
+  JSONCPP_STRING indentString_;
+  unsigned int rightMargin_;
+  unsigned int indentSize_;
+  bool addChildValues_;
+};
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
+/** \brief Writes a Value in <a HREF="http://www.json.org">JSON</a> format in a
+ human friendly way,
+     to a stream rather than to a string.
+ *
+ * The rules for line break and indent are as follow:
+ * - Object value:
+ *     - if empty then print {} without indent and line break
+ *     - if not empty the print '{', line break & indent, print one value per
+ line
+ *       and then unindent and line break and print '}'.
+ * - Array value:
+ *     - if empty then print [] without indent and line break
+ *     - if the array contains no object value, empty array or some other value
+ types,
+ *       and all the values fit on one lines, then print the array on a single
+ line.
+ *     - otherwise, it the values do not fit on one line, or the array contains
+ *       object or non empty array, then print one value per line.
+ *
+ * If the Value have comments then they are outputed according to their
+ #CommentPlacement.
+ *
+ * \sa Reader, Value, Value::setComment()
+ * \deprecated Use StreamWriterBuilder.
+ */
+#if defined(_MSC_VER)
+#pragma warning(push)
+#pragma warning(disable:4996) // Deriving from deprecated class
+#endif
+class JSONCPP_DEPRECATED("Use StreamWriterBuilder instead") JSON_API StyledStreamWriter {
+public:
+/**
+ * \param indentation Each level will be indented by this amount extra.
+ */
+  StyledStreamWriter(JSONCPP_STRING indentation = "\t");
+  ~StyledStreamWriter() {}
+
+public:
+  /** \brief Serialize a Value in <a HREF="http://www.json.org">JSON</a> format.
+   * \param out Stream to write to. (Can be ostringstream, e.g.)
+   * \param root Value to serialize.
+   * \note There is no point in deriving from Writer, since write() should not
+   * return a value.
+   */
+  void write(JSONCPP_OSTREAM& out, const Value& root);
+
+private:
+  void writeValue(const Value& value);
+  void writeArrayValue(const Value& value);
+  bool isMultilineArray(const Value& value);
+  void pushValue(const JSONCPP_STRING& value);
+  void writeIndent();
+  void writeWithIndent(const JSONCPP_STRING& value);
+  void indent();
+  void unindent();
+  void writeCommentBeforeValue(const Value& root);
+  void writeCommentAfterValueOnSameLine(const Value& root);
+  bool hasCommentForValue(const Value& value);
+  static JSONCPP_STRING normalizeEOL(const JSONCPP_STRING& text);
+
+  typedef std::vector<JSONCPP_STRING> ChildValues;
+
+  ChildValues childValues_;
+  JSONCPP_OSTREAM* document_;
+  JSONCPP_STRING indentString_;
+  unsigned int rightMargin_;
+  JSONCPP_STRING indentation_;
+  bool addChildValues_ : 1;
+  bool indented_ : 1;
+};
+#if defined(_MSC_VER)
+#pragma warning(pop)
+#endif
+
+#if defined(JSON_HAS_INT64)
+JSONCPP_STRING JSON_API valueToString(Int value);
+JSONCPP_STRING JSON_API valueToString(UInt value);
+#endif // if defined(JSON_HAS_INT64)
+JSONCPP_STRING JSON_API valueToString(LargestInt value);
+JSONCPP_STRING JSON_API valueToString(LargestUInt value);
+JSONCPP_STRING JSON_API valueToString(double value);
+JSONCPP_STRING JSON_API valueToString(bool value);
+JSONCPP_STRING JSON_API valueToQuotedString(const char* value);
+
+/// \brief Output using the StyledStreamWriter.
+/// \see Json::operator>>()
+JSON_API JSONCPP_OSTREAM& operator<<(JSONCPP_OSTREAM&, const Value& root);
+
+} // namespace Json
+
+#pragma pack(pop)
+
+#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+#pragma warning(pop)
+#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
+
+#endif // JSON_WRITER_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/CMakeLists.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/CMakeLists.txt	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,117 @@
+IF( CMAKE_COMPILER_IS_GNUCXX )
+    #Get compiler version.
+    EXECUTE_PROCESS( COMMAND ${CMAKE_CXX_COMPILER} -dumpversion
+                     OUTPUT_VARIABLE GNUCXX_VERSION )
+
+    #-Werror=* was introduced -after- GCC 4.1.2
+    IF( GNUCXX_VERSION VERSION_GREATER 4.1.2 )
+        SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror=strict-aliasing")
+    ENDIF()
+ENDIF( CMAKE_COMPILER_IS_GNUCXX )
+
+INCLUDE(CheckIncludeFileCXX)
+INCLUDE(CheckTypeSize)
+INCLUDE(CheckStructHasMember)
+INCLUDE(CheckCXXSymbolExists)
+
+check_include_file_cxx(clocale HAVE_CLOCALE)
+check_cxx_symbol_exists(localeconv clocale HAVE_LOCALECONV)
+
+IF(CMAKE_VERSION VERSION_LESS 3.0.0)
+    # The "LANGUAGE CXX" parameter is not supported in CMake versions below 3,
+    # so the C compiler and header has to be used.
+    check_include_file(locale.h HAVE_LOCALE_H)
+    SET(CMAKE_EXTRA_INCLUDE_FILES locale.h)
+    check_type_size("struct lconv" LCONV_SIZE)
+    UNSET(CMAKE_EXTRA_INCLUDE_FILES)
+    check_struct_has_member("struct lconv" decimal_point locale.h HAVE_DECIMAL_POINT)
+ELSE()
+    SET(CMAKE_EXTRA_INCLUDE_FILES clocale)
+    check_type_size(lconv LCONV_SIZE LANGUAGE CXX)
+    UNSET(CMAKE_EXTRA_INCLUDE_FILES)
+    check_struct_has_member(lconv decimal_point clocale HAVE_DECIMAL_POINT LANGUAGE CXX)
+ENDIF()
+
+IF(NOT (HAVE_CLOCALE AND HAVE_LCONV_SIZE AND HAVE_DECIMAL_POINT AND HAVE_LOCALECONV))
+    MESSAGE(WARNING "Locale functionality is not supported")
+    ADD_DEFINITIONS(-DJSONCPP_NO_LOCALE_SUPPORT)
+ENDIF()
+
+SET( JSONCPP_INCLUDE_DIR ../../include )
+
+SET( PUBLIC_HEADERS
+    ${JSONCPP_INCLUDE_DIR}/json/config.h
+    ${JSONCPP_INCLUDE_DIR}/json/forwards.h
+    ${JSONCPP_INCLUDE_DIR}/json/features.h
+    ${JSONCPP_INCLUDE_DIR}/json/value.h
+    ${JSONCPP_INCLUDE_DIR}/json/reader.h
+    ${JSONCPP_INCLUDE_DIR}/json/writer.h
+    ${JSONCPP_INCLUDE_DIR}/json/assertions.h
+    ${JSONCPP_INCLUDE_DIR}/json/version.h
+    )
+
+SOURCE_GROUP( "Public API" FILES ${PUBLIC_HEADERS} )
+
+SET(jsoncpp_sources
+                json_tool.h
+                json_reader.cpp
+                json_valueiterator.inl
+                json_value.cpp
+                json_writer.cpp
+                version.h.in)
+
+# Install instructions for this target
+IF(JSONCPP_WITH_CMAKE_PACKAGE)
+    SET(INSTALL_EXPORT EXPORT jsoncpp)
+ELSE(JSONCPP_WITH_CMAKE_PACKAGE)
+    SET(INSTALL_EXPORT)
+ENDIF()
+
+IF(BUILD_SHARED_LIBS)
+    ADD_DEFINITIONS( -DJSON_DLL_BUILD )
+    ADD_LIBRARY(jsoncpp_lib SHARED ${PUBLIC_HEADERS} ${jsoncpp_sources})
+    SET_TARGET_PROPERTIES( jsoncpp_lib PROPERTIES VERSION ${JSONCPP_VERSION} SOVERSION ${JSONCPP_SOVERSION})
+    SET_TARGET_PROPERTIES( jsoncpp_lib PROPERTIES OUTPUT_NAME jsoncpp
+                           DEBUG_OUTPUT_NAME jsoncpp${DEBUG_LIBNAME_SUFFIX} )
+
+    # Set library's runtime search path on OSX
+    IF(APPLE)
+        SET_TARGET_PROPERTIES( jsoncpp_lib PROPERTIES INSTALL_RPATH "@loader_path/." )
+    ENDIF()
+
+    INSTALL( TARGETS jsoncpp_lib ${INSTALL_EXPORT}
+             RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+             LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+             ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+    IF(NOT CMAKE_VERSION VERSION_LESS 2.8.11)
+        TARGET_INCLUDE_DIRECTORIES( jsoncpp_lib PUBLIC
+                                   $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+                                   $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/${JSONCPP_INCLUDE_DIR}>)
+    ENDIF()
+
+ENDIF()
+
+IF(BUILD_STATIC_LIBS)
+    ADD_LIBRARY(jsoncpp_lib_static STATIC ${PUBLIC_HEADERS} ${jsoncpp_sources})
+    SET_TARGET_PROPERTIES( jsoncpp_lib_static PROPERTIES VERSION ${JSONCPP_VERSION} SOVERSION ${JSONCPP_SOVERSION})
+    # avoid name clashes on windows as the shared import lib is also named jsoncpp.lib
+    if (NOT DEFINED STATIC_SUFFIX AND BUILD_SHARED_LIBS)
+      set (STATIC_SUFFIX "_static")
+    endif ()
+    set_target_properties (jsoncpp_lib_static PROPERTIES OUTPUT_NAME jsoncpp${STATIC_SUFFIX}
+                                                         DEBUG_OUTPUT_NAME jsoncpp${STATIC_SUFFIX}${DEBUG_LIBNAME_SUFFIX})
+
+    INSTALL( TARGETS jsoncpp_lib_static ${INSTALL_EXPORT}
+             RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+             LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+             ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
+
+    IF(NOT CMAKE_VERSION VERSION_LESS 2.8.11)
+        TARGET_INCLUDE_DIRECTORIES( jsoncpp_lib_static PUBLIC
+                                $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>
+                                $<BUILD_INTERFACE:${CMAKE_CURRENT_LIST_DIR}/${JSONCPP_INCLUDE_DIR}>
+                                )
+    ENDIF()
+
+ENDIF()
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/json_reader.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/json_reader.cpp	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,2062 @@
+// Copyright 2007-2011 Baptiste Lepilleur and The JsonCpp Authors
+// Copyright (C) 2016 InfoTeCS JSC. All rights reserved.
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include <json/assertions.h>
+#include <json/reader.h>
+#include <json/value.h>
+#include "json_tool.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <utility>
+#include <cstdio>
+#include <cassert>
+#include <cstring>
+#include <istream>
+#include <sstream>
+#include <memory>
+#include <set>
+#include <limits>
+
+#if defined(_MSC_VER)
+#if !defined(WINCE) && defined(__STDC_SECURE_LIB__) && _MSC_VER >= 1500 // VC++ 9.0 and above 
+#define snprintf sprintf_s
+#elif _MSC_VER >= 1900 // VC++ 14.0 and above
+#define snprintf std::snprintf
+#else
+#define snprintf _snprintf
+#endif
+#elif defined(__ANDROID__) || defined(__QNXNTO__)
+#define snprintf snprintf
+#elif __cplusplus >= 201103L
+#if !defined(__MINGW32__) && !defined(__CYGWIN__)
+#define snprintf std::snprintf
+#endif
+#endif
+
+#if defined(__QNXNTO__)
+#define sscanf std::sscanf
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER >= 1400 // VC++ 8.0
+// Disable warning about strdup being deprecated.
+#pragma warning(disable : 4996)
+#endif
+
+// Define JSONCPP_DEPRECATED_STACK_LIMIT as an appropriate integer at compile time to change the stack limit
+#if !defined(JSONCPP_DEPRECATED_STACK_LIMIT)
+#define JSONCPP_DEPRECATED_STACK_LIMIT 1000
+#endif
+
+using namespace std;
+
+static size_t const stackLimit_g = JSONCPP_DEPRECATED_STACK_LIMIT; // see readValue()
+
+namespace Json {
+
+#if __cplusplus >= 201103L || (defined(_CPPLIB_VER) && _CPPLIB_VER >= 520)
+typedef std::unique_ptr<CharReader> CharReaderPtr;
+#else
+typedef std::auto_ptr<CharReader>   CharReaderPtr;
+#endif
+
+// Implementation of class Features
+// ////////////////////////////////
+
+Features::Features()
+    : allowComments_(true), strictRoot_(false),
+      allowDroppedNullPlaceholders_(false), allowNumericKeys_(false) {}
+
+Features Features::all() { return Features(); }
+
+Features Features::strictMode() {
+  Features features;
+  features.allowComments_ = false;
+  features.strictRoot_ = true;
+  features.allowDroppedNullPlaceholders_ = false;
+  features.allowNumericKeys_ = false;
+  return features;
+}
+
+// Implementation of class Reader
+// ////////////////////////////////
+
+bool Reader::containsNewLine(Reader::Location begin, Reader::Location end) {
+  for (; begin < end; ++begin)
+    if (*begin == '\n' || *begin == '\r')
+      return true;
+  return false;
+}
+
+// Class Reader
+// //////////////////////////////////////////////////////////////////
+
+Reader::Reader()
+    : errors_(), document_(), begin_(), end_(), current_(), lastValueEnd_(),
+      lastValue_(), commentsBefore_(), features_(Features::all()),
+      collectComments_() {}
+
+Reader::Reader(const Features& features)
+    : errors_(), document_(), begin_(), end_(), current_(), lastValueEnd_(),
+      lastValue_(), commentsBefore_(), features_(features), collectComments_() {
+}
+
+bool
+Reader::parse(const std::string& document, Value& root, bool collectComments) {
+  document_.assign(document.begin(), document.end());
+  const char* begin = document_.c_str();
+  const char* end = begin + document_.length();
+  return parse(begin, end, root, collectComments);
+}
+
+bool Reader::parse(std::istream& sin, Value& root, bool collectComments) {
+  // std::istream_iterator<char> begin(sin);
+  // std::istream_iterator<char> end;
+  // Those would allow streamed input from a file, if parse() were a
+  // template function.
+
+  // Since JSONCPP_STRING is reference-counted, this at least does not
+  // create an extra copy.
+  JSONCPP_STRING doc;
+  std::getline(sin, doc, (char)EOF);
+  return parse(doc.data(), doc.data() + doc.size(), root, collectComments);
+}
+
+bool Reader::parse(const char* beginDoc,
+                   const char* endDoc,
+                   Value& root,
+                   bool collectComments) {
+  if (!features_.allowComments_) {
+    collectComments = false;
+  }
+
+  begin_ = beginDoc;
+  end_ = endDoc;
+  collectComments_ = collectComments;
+  current_ = begin_;
+  lastValueEnd_ = 0;
+  lastValue_ = 0;
+  commentsBefore_.clear();
+  errors_.clear();
+  while (!nodes_.empty())
+    nodes_.pop();
+  nodes_.push(&root);
+
+  bool successful = readValue();
+  Token token;
+  skipCommentTokens(token);
+  if (collectComments_ && !commentsBefore_.empty())
+    root.setComment(commentsBefore_, commentAfter);
+  if (features_.strictRoot_) {
+    if (!root.isArray() && !root.isObject()) {
+      // Set error location to start of doc, ideally should be first token found
+      // in doc
+      token.type_ = tokenError;
+      token.start_ = beginDoc;
+      token.end_ = endDoc;
+      addError(
+          "A valid JSON document must be either an array or an object value.",
+          token);
+      return false;
+    }
+  }
+  return successful;
+}
+
+bool Reader::readValue() {
+  // readValue() may call itself only if it calls readObject() or ReadArray().
+  // These methods execute nodes_.push() just before and nodes_.pop)() just after calling readValue(). 
+  // parse() executes one nodes_.push(), so > instead of >=.
+  if (nodes_.size() > stackLimit_g) throwRuntimeError("Exceeded stackLimit in readValue().");
+
+  Token token;
+  skipCommentTokens(token);
+  bool successful = true;
+
+  if (collectComments_ && !commentsBefore_.empty()) {
+    currentValue().setComment(commentsBefore_, commentBefore);
+    commentsBefore_.clear();
+  }
+
+  switch (token.type_) {
+  case tokenObjectBegin:
+    successful = readObject(token);
+    currentValue().setOffsetLimit(current_ - begin_);
+    break;
+  case tokenArrayBegin:
+    successful = readArray(token);
+    currentValue().setOffsetLimit(current_ - begin_);
+    break;
+  case tokenNumber:
+    successful = decodeNumber(token);
+    break;
+  case tokenString:
+    successful = decodeString(token);
+    break;
+  case tokenTrue:
+    {
+    Value v(true);
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenFalse:
+    {
+    Value v(false);
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenNull:
+    {
+    Value v;
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenArraySeparator:
+  case tokenObjectEnd:
+  case tokenArrayEnd:
+    if (features_.allowDroppedNullPlaceholders_) {
+      // "Un-read" the current token and mark the current value as a null
+      // token.
+      current_--;
+      Value v;
+      currentValue().swapPayload(v);
+      currentValue().setOffsetStart(current_ - begin_ - 1);
+      currentValue().setOffsetLimit(current_ - begin_);
+      break;
+    } // Else, fall through...
+  default:
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    return addError("Syntax error: value, object or array expected.", token);
+  }
+
+  if (collectComments_) {
+    lastValueEnd_ = current_;
+    lastValue_ = &currentValue();
+  }
+
+  return successful;
+}
+
+void Reader::skipCommentTokens(Token& token) {
+  if (features_.allowComments_) {
+    do {
+      readToken(token);
+    } while (token.type_ == tokenComment);
+  } else {
+    readToken(token);
+  }
+}
+
+bool Reader::readToken(Token& token) {
+  skipSpaces();
+  token.start_ = current_;
+  Char c = getNextChar();
+  bool ok = true;
+  switch (c) {
+  case '{':
+    token.type_ = tokenObjectBegin;
+    break;
+  case '}':
+    token.type_ = tokenObjectEnd;
+    break;
+  case '[':
+    token.type_ = tokenArrayBegin;
+    break;
+  case ']':
+    token.type_ = tokenArrayEnd;
+    break;
+  case '"':
+    token.type_ = tokenString;
+    ok = readString();
+    break;
+  case '/':
+    token.type_ = tokenComment;
+    ok = readComment();
+    break;
+  case '0':
+  case '1':
+  case '2':
+  case '3':
+  case '4':
+  case '5':
+  case '6':
+  case '7':
+  case '8':
+  case '9':
+  case '-':
+    token.type_ = tokenNumber;
+    readNumber();
+    break;
+  case 't':
+    token.type_ = tokenTrue;
+    ok = match("rue", 3);
+    break;
+  case 'f':
+    token.type_ = tokenFalse;
+    ok = match("alse", 4);
+    break;
+  case 'n':
+    token.type_ = tokenNull;
+    ok = match("ull", 3);
+    break;
+  case ',':
+    token.type_ = tokenArraySeparator;
+    break;
+  case ':':
+    token.type_ = tokenMemberSeparator;
+    break;
+  case 0:
+    token.type_ = tokenEndOfStream;
+    break;
+  default:
+    ok = false;
+    break;
+  }
+  if (!ok)
+    token.type_ = tokenError;
+  token.end_ = current_;
+  return true;
+}
+
+void Reader::skipSpaces() {
+  while (current_ != end_) {
+    Char c = *current_;
+    if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
+      ++current_;
+    else
+      break;
+  }
+}
+
+bool Reader::match(Location pattern, int patternLength) {
+  if (end_ - current_ < patternLength)
+    return false;
+  int index = patternLength;
+  while (index--)
+    if (current_[index] != pattern[index])
+      return false;
+  current_ += patternLength;
+  return true;
+}
+
+bool Reader::readComment() {
+  Location commentBegin = current_ - 1;
+  Char c = getNextChar();
+  bool successful = false;
+  if (c == '*')
+    successful = readCStyleComment();
+  else if (c == '/')
+    successful = readCppStyleComment();
+  if (!successful)
+    return false;
+
+  if (collectComments_) {
+    CommentPlacement placement = commentBefore;
+    if (lastValueEnd_ && !containsNewLine(lastValueEnd_, commentBegin)) {
+      if (c != '*' || !containsNewLine(commentBegin, current_))
+        placement = commentAfterOnSameLine;
+    }
+
+    addComment(commentBegin, current_, placement);
+  }
+  return true;
+}
+
+JSONCPP_STRING Reader::normalizeEOL(Reader::Location begin, Reader::Location end) {
+  JSONCPP_STRING normalized;
+  normalized.reserve(static_cast<size_t>(end - begin));
+  Reader::Location current = begin;
+  while (current != end) {
+    char c = *current++;
+    if (c == '\r') {
+      if (current != end && *current == '\n')
+         // convert dos EOL
+         ++current;
+      // convert Mac EOL
+      normalized += '\n';
+    } else {
+      normalized += c;
+    }
+  }
+  return normalized;
+}
+
+void
+Reader::addComment(Location begin, Location end, CommentPlacement placement) {
+  assert(collectComments_);
+  const JSONCPP_STRING& normalized = normalizeEOL(begin, end);
+  if (placement == commentAfterOnSameLine) {
+    assert(lastValue_ != 0);
+    lastValue_->setComment(normalized, placement);
+  } else {
+    commentsBefore_ += normalized;
+  }
+}
+
+bool Reader::readCStyleComment() {
+  while ((current_ + 1) < end_) {
+    Char c = getNextChar();
+    if (c == '*' && *current_ == '/')
+      break;
+  }
+  return getNextChar() == '/';
+}
+
+bool Reader::readCppStyleComment() {
+  while (current_ != end_) {
+    Char c = getNextChar();
+    if (c == '\n')
+      break;
+    if (c == '\r') {
+      // Consume DOS EOL. It will be normalized in addComment.
+      if (current_ != end_ && *current_ == '\n')
+        getNextChar();
+      // Break on Moc OS 9 EOL.
+      break;
+    }
+  }
+  return true;
+}
+
+void Reader::readNumber() {
+  const char *p = current_;
+  char c = '0'; // stopgap for already consumed character
+  // integral part
+  while (c >= '0' && c <= '9')
+    c = (current_ = p) < end_ ? *p++ : '\0';
+  // fractional part
+  if (c == '.') {
+    c = (current_ = p) < end_ ? *p++ : '\0';
+    while (c >= '0' && c <= '9')
+      c = (current_ = p) < end_ ? *p++ : '\0';
+  }
+  // exponential part
+  if (c == 'e' || c == 'E') {
+    c = (current_ = p) < end_ ? *p++ : '\0';
+    if (c == '+' || c == '-')
+      c = (current_ = p) < end_ ? *p++ : '\0';
+    while (c >= '0' && c <= '9')
+      c = (current_ = p) < end_ ? *p++ : '\0';
+  }
+}
+
+bool Reader::readString() {
+  Char c = '\0';
+  while (current_ != end_) {
+    c = getNextChar();
+    if (c == '\\')
+      getNextChar();
+    else if (c == '"')
+      break;
+  }
+  return c == '"';
+}
+
+bool Reader::readObject(Token& tokenStart) {
+  Token tokenName;
+  JSONCPP_STRING name;
+  Value init(objectValue);
+  currentValue().swapPayload(init);
+  currentValue().setOffsetStart(tokenStart.start_ - begin_);
+  while (readToken(tokenName)) {
+    bool initialTokenOk = true;
+    while (tokenName.type_ == tokenComment && initialTokenOk)
+      initialTokenOk = readToken(tokenName);
+    if (!initialTokenOk)
+      break;
+    if (tokenName.type_ == tokenObjectEnd && name.empty()) // empty object
+      return true;
+    name.clear();
+    if (tokenName.type_ == tokenString) {
+      if (!decodeString(tokenName, name))
+        return recoverFromError(tokenObjectEnd);
+    } else if (tokenName.type_ == tokenNumber && features_.allowNumericKeys_) {
+      Value numberName;
+      if (!decodeNumber(tokenName, numberName))
+        return recoverFromError(tokenObjectEnd);
+      name = JSONCPP_STRING(numberName.asCString());
+    } else {
+      break;
+    }
+
+    Token colon;
+    if (!readToken(colon) || colon.type_ != tokenMemberSeparator) {
+      return addErrorAndRecover(
+          "Missing ':' after object member name", colon, tokenObjectEnd);
+    }
+    Value& value = currentValue()[name];
+    nodes_.push(&value);
+    bool ok = readValue();
+    nodes_.pop();
+    if (!ok) // error already set
+      return recoverFromError(tokenObjectEnd);
+
+    Token comma;
+    if (!readToken(comma) ||
+        (comma.type_ != tokenObjectEnd && comma.type_ != tokenArraySeparator &&
+         comma.type_ != tokenComment)) {
+      return addErrorAndRecover(
+          "Missing ',' or '}' in object declaration", comma, tokenObjectEnd);
+    }
+    bool finalizeTokenOk = true;
+    while (comma.type_ == tokenComment && finalizeTokenOk)
+      finalizeTokenOk = readToken(comma);
+    if (comma.type_ == tokenObjectEnd)
+      return true;
+  }
+  return addErrorAndRecover(
+      "Missing '}' or object member name", tokenName, tokenObjectEnd);
+}
+
+bool Reader::readArray(Token& tokenStart) {
+  Value init(arrayValue);
+  currentValue().swapPayload(init);
+  currentValue().setOffsetStart(tokenStart.start_ - begin_);
+  skipSpaces();
+  if (current_ != end_ && *current_ == ']') // empty array
+  {
+    Token endArray;
+    readToken(endArray);
+    return true;
+  }
+  int index = 0;
+  for (;;) {
+    Value& value = currentValue()[index++];
+    nodes_.push(&value);
+    bool ok = readValue();
+    nodes_.pop();
+    if (!ok) // error already set
+      return recoverFromError(tokenArrayEnd);
+
+    Token token;
+    // Accept Comment after last item in the array.
+    ok = readToken(token);
+    while (token.type_ == tokenComment && ok) {
+      ok = readToken(token);
+    }
+    bool badTokenType =
+        (token.type_ != tokenArraySeparator && token.type_ != tokenArrayEnd);
+    if (!ok || badTokenType) {
+      return addErrorAndRecover(
+          "Missing ',' or ']' in array declaration", token, tokenArrayEnd);
+    }
+    if (token.type_ == tokenArrayEnd)
+      break;
+  }
+  return true;
+}
+
+bool Reader::decodeNumber(Token& token) {
+  Value decoded;
+  if (!decodeNumber(token, decoded))
+    return false;
+  currentValue().swapPayload(decoded);
+  currentValue().setOffsetStart(token.start_ - begin_);
+  currentValue().setOffsetLimit(token.end_ - begin_);
+  return true;
+}
+
+bool Reader::decodeNumber(Token& token, Value& decoded) {
+  // Attempts to parse the number as an integer. If the number is
+  // larger than the maximum supported value of an integer then
+  // we decode the number as a double.
+  Location current = token.start_;
+  bool isNegative = *current == '-';
+  if (isNegative)
+    ++current;
+  // TODO: Help the compiler do the div and mod at compile time or get rid of them.
+  Value::LargestUInt maxIntegerValue =
+      isNegative ? Value::LargestUInt(Value::maxLargestInt) + 1
+                 : Value::maxLargestUInt;
+  Value::LargestUInt threshold = maxIntegerValue / 10;
+  Value::LargestUInt value = 0;
+  while (current < token.end_) {
+    Char c = *current++;
+    if (c < '0' || c > '9')
+      return decodeDouble(token, decoded);
+    Value::UInt digit(static_cast<Value::UInt>(c - '0'));
+    if (value >= threshold) {
+      // We've hit or exceeded the max value divided by 10 (rounded down). If
+      // a) we've only just touched the limit, b) this is the last digit, and
+      // c) it's small enough to fit in that rounding delta, we're okay.
+      // Otherwise treat this number as a double to avoid overflow.
+      if (value > threshold || current != token.end_ ||
+          digit > maxIntegerValue % 10) {
+        return decodeDouble(token, decoded);
+      }
+    }
+    value = value * 10 + digit;
+  }
+  if (isNegative && value == maxIntegerValue)
+    decoded = Value::minLargestInt;
+  else if (isNegative)
+    decoded = -Value::LargestInt(value);
+  else if (value <= Value::LargestUInt(Value::maxInt))
+    decoded = Value::LargestInt(value);
+  else
+    decoded = value;
+  return true;
+}
+
+bool Reader::decodeDouble(Token& token) {
+  Value decoded;
+  if (!decodeDouble(token, decoded))
+    return false;
+  currentValue().swapPayload(decoded);
+  currentValue().setOffsetStart(token.start_ - begin_);
+  currentValue().setOffsetLimit(token.end_ - begin_);
+  return true;
+}
+
+bool Reader::decodeDouble(Token& token, Value& decoded) {
+  double value = 0;
+  JSONCPP_STRING buffer(token.start_, token.end_);
+  JSONCPP_ISTRINGSTREAM is(buffer);
+  if (!(is >> value))
+    return addError("'" + JSONCPP_STRING(token.start_, token.end_) +
+                        "' is not a number.",
+                    token);
+  decoded = value;
+  return true;
+}
+
+bool Reader::decodeString(Token& token) {
+  JSONCPP_STRING decoded_string;
+  if (!decodeString(token, decoded_string))
+    return false;
+  Value decoded(decoded_string);
+  currentValue().swapPayload(decoded);
+  currentValue().setOffsetStart(token.start_ - begin_);
+  currentValue().setOffsetLimit(token.end_ - begin_);
+  return true;
+}
+
+bool Reader::decodeString(Token& token, JSONCPP_STRING& decoded) {
+  decoded.reserve(static_cast<size_t>(token.end_ - token.start_ - 2));
+  Location current = token.start_ + 1; // skip '"'
+  Location end = token.end_ - 1;       // do not include '"'
+  while (current != end) {
+    Char c = *current++;
+    if (c == '"')
+      break;
+    else if (c == '\\') {
+      if (current == end)
+        return addError("Empty escape sequence in string", token, current);
+      Char escape = *current++;
+      switch (escape) {
+      case '"':
+        decoded += '"';
+        break;
+      case '/':
+        decoded += '/';
+        break;
+      case '\\':
+        decoded += '\\';
+        break;
+      case 'b':
+        decoded += '\b';
+        break;
+      case 'f':
+        decoded += '\f';
+        break;
+      case 'n':
+        decoded += '\n';
+        break;
+      case 'r':
+        decoded += '\r';
+        break;
+      case 't':
+        decoded += '\t';
+        break;
+      case 'u': {
+        unsigned int unicode;
+        if (!decodeUnicodeCodePoint(token, current, end, unicode))
+          return false;
+        decoded += codePointToUTF8(unicode);
+      } break;
+      default:
+        return addError("Bad escape sequence in string", token, current);
+      }
+    } else {
+      decoded += c;
+    }
+  }
+  return true;
+}
+
+bool Reader::decodeUnicodeCodePoint(Token& token,
+                                    Location& current,
+                                    Location end,
+                                    unsigned int& unicode) {
+
+  if (!decodeUnicodeEscapeSequence(token, current, end, unicode))
+    return false;
+  if (unicode >= 0xD800 && unicode <= 0xDBFF) {
+    // surrogate pairs
+    if (end - current < 6)
+      return addError(
+          "additional six characters expected to parse unicode surrogate pair.",
+          token,
+          current);
+    unsigned int surrogatePair;
+    if (*(current++) == '\\' && *(current++) == 'u') {
+      if (decodeUnicodeEscapeSequence(token, current, end, surrogatePair)) {
+        unicode = 0x10000 + ((unicode & 0x3FF) << 10) + (surrogatePair & 0x3FF);
+      } else
+        return false;
+    } else
+      return addError("expecting another \\u token to begin the second half of "
+                      "a unicode surrogate pair",
+                      token,
+                      current);
+  }
+  return true;
+}
+
+bool Reader::decodeUnicodeEscapeSequence(Token& token,
+                                         Location& current,
+                                         Location end,
+                                         unsigned int& ret_unicode) {
+  if (end - current < 4)
+    return addError(
+        "Bad unicode escape sequence in string: four digits expected.",
+        token,
+        current);
+  int unicode = 0;
+  for (int index = 0; index < 4; ++index) {
+    Char c = *current++;
+    unicode *= 16;
+    if (c >= '0' && c <= '9')
+      unicode += c - '0';
+    else if (c >= 'a' && c <= 'f')
+      unicode += c - 'a' + 10;
+    else if (c >= 'A' && c <= 'F')
+      unicode += c - 'A' + 10;
+    else
+      return addError(
+          "Bad unicode escape sequence in string: hexadecimal digit expected.",
+          token,
+          current);
+  }
+  ret_unicode = static_cast<unsigned int>(unicode);
+  return true;
+}
+
+bool
+Reader::addError(const JSONCPP_STRING& message, Token& token, Location extra) {
+  ErrorInfo info;
+  info.token_ = token;
+  info.message_ = message;
+  info.extra_ = extra;
+  errors_.push_back(info);
+  return false;
+}
+
+bool Reader::recoverFromError(TokenType skipUntilToken) {
+  size_t const errorCount = errors_.size();
+  Token skip;
+  for (;;) {
+    if (!readToken(skip))
+      errors_.resize(errorCount); // discard errors caused by recovery
+    if (skip.type_ == skipUntilToken || skip.type_ == tokenEndOfStream)
+      break;
+  }
+  errors_.resize(errorCount);
+  return false;
+}
+
+bool Reader::addErrorAndRecover(const JSONCPP_STRING& message,
+                                Token& token,
+                                TokenType skipUntilToken) {
+  addError(message, token);
+  return recoverFromError(skipUntilToken);
+}
+
+Value& Reader::currentValue() { return *(nodes_.top()); }
+
+Reader::Char Reader::getNextChar() {
+  if (current_ == end_)
+    return 0;
+  return *current_++;
+}
+
+void Reader::getLocationLineAndColumn(Location location,
+                                      int& line,
+                                      int& column) const {
+  Location current = begin_;
+  Location lastLineStart = current;
+  line = 0;
+  while (current < location && current != end_) {
+    Char c = *current++;
+    if (c == '\r') {
+      if (*current == '\n')
+        ++current;
+      lastLineStart = current;
+      ++line;
+    } else if (c == '\n') {
+      lastLineStart = current;
+      ++line;
+    }
+  }
+  // column & line start at 1
+  column = int(location - lastLineStart) + 1;
+  ++line;
+}
+
+JSONCPP_STRING Reader::getLocationLineAndColumn(Location location) const {
+  int line, column;
+  getLocationLineAndColumn(location, line, column);
+  char buffer[18 + 16 + 16 + 1];
+  snprintf(buffer, sizeof(buffer), "Line %d, Column %d", line, column);
+  return buffer;
+}
+
+// Deprecated. Preserved for backward compatibility
+JSONCPP_STRING Reader::getFormatedErrorMessages() const {
+  return getFormattedErrorMessages();
+}
+
+JSONCPP_STRING Reader::getFormattedErrorMessages() const {
+  JSONCPP_STRING formattedMessage;
+  for (Errors::const_iterator itError = errors_.begin();
+       itError != errors_.end();
+       ++itError) {
+    const ErrorInfo& error = *itError;
+    formattedMessage +=
+        "* " + getLocationLineAndColumn(error.token_.start_) + "\n";
+    formattedMessage += "  " + error.message_ + "\n";
+    if (error.extra_)
+      formattedMessage +=
+          "See " + getLocationLineAndColumn(error.extra_) + " for detail.\n";
+  }
+  return formattedMessage;
+}
+
+std::vector<Reader::StructuredError> Reader::getStructuredErrors() const {
+  std::vector<Reader::StructuredError> allErrors;
+  for (Errors::const_iterator itError = errors_.begin();
+       itError != errors_.end();
+       ++itError) {
+    const ErrorInfo& error = *itError;
+    Reader::StructuredError structured;
+    structured.offset_start = error.token_.start_ - begin_;
+    structured.offset_limit = error.token_.end_ - begin_;
+    structured.message = error.message_;
+    allErrors.push_back(structured);
+  }
+  return allErrors;
+}
+
+bool Reader::pushError(const Value& value, const JSONCPP_STRING& message) {
+  ptrdiff_t const length = end_ - begin_;
+  if(value.getOffsetStart() > length
+    || value.getOffsetLimit() > length)
+    return false;
+  Token token;
+  token.type_ = tokenError;
+  token.start_ = begin_ + value.getOffsetStart();
+  token.end_ = end_ + value.getOffsetLimit();
+  ErrorInfo info;
+  info.token_ = token;
+  info.message_ = message;
+  info.extra_ = 0;
+  errors_.push_back(info);
+  return true;
+}
+
+bool Reader::pushError(const Value& value, const JSONCPP_STRING& message, const Value& extra) {
+  ptrdiff_t const length = end_ - begin_;
+  if(value.getOffsetStart() > length
+    || value.getOffsetLimit() > length
+    || extra.getOffsetLimit() > length)
+    return false;
+  Token token;
+  token.type_ = tokenError;
+  token.start_ = begin_ + value.getOffsetStart();
+  token.end_ = begin_ + value.getOffsetLimit();
+  ErrorInfo info;
+  info.token_ = token;
+  info.message_ = message;
+  info.extra_ = begin_ + extra.getOffsetStart();
+  errors_.push_back(info);
+  return true;
+}
+
+bool Reader::good() const {
+  return !errors_.size();
+}
+
+// exact copy of Features
+class OurFeatures {
+public:
+  static OurFeatures all();
+  bool allowComments_;
+  bool strictRoot_;
+  bool allowDroppedNullPlaceholders_;
+  bool allowNumericKeys_;
+  bool allowSingleQuotes_;
+  bool failIfExtra_;
+  bool rejectDupKeys_;
+  bool allowSpecialFloats_;
+  int stackLimit_;
+};  // OurFeatures
+
+// exact copy of Implementation of class Features
+// ////////////////////////////////
+
+OurFeatures OurFeatures::all() { return OurFeatures(); }
+
+// Implementation of class Reader
+// ////////////////////////////////
+
+// exact copy of Reader, renamed to OurReader
+class OurReader {
+public:
+  typedef char Char;
+  typedef const Char* Location;
+  struct StructuredError {
+    ptrdiff_t offset_start;
+    ptrdiff_t offset_limit;
+    JSONCPP_STRING message;
+  };
+
+  OurReader(OurFeatures const& features);
+  bool parse(const char* beginDoc,
+             const char* endDoc,
+             Value& root,
+             bool collectComments = true);
+  JSONCPP_STRING getFormattedErrorMessages() const;
+  std::vector<StructuredError> getStructuredErrors() const;
+  bool pushError(const Value& value, const JSONCPP_STRING& message);
+  bool pushError(const Value& value, const JSONCPP_STRING& message, const Value& extra);
+  bool good() const;
+
+private:
+  OurReader(OurReader const&);  // no impl
+  void operator=(OurReader const&);  // no impl
+
+  enum TokenType {
+    tokenEndOfStream = 0,
+    tokenObjectBegin,
+    tokenObjectEnd,
+    tokenArrayBegin,
+    tokenArrayEnd,
+    tokenString,
+    tokenNumber,
+    tokenTrue,
+    tokenFalse,
+    tokenNull,
+    tokenNaN,
+    tokenPosInf,
+    tokenNegInf,
+    tokenArraySeparator,
+    tokenMemberSeparator,
+    tokenComment,
+    tokenError
+  };
+
+  class Token {
+  public:
+    TokenType type_;
+    Location start_;
+    Location end_;
+  };
+
+  class ErrorInfo {
+  public:
+    Token token_;
+    JSONCPP_STRING message_;
+    Location extra_;
+  };
+
+  typedef std::deque<ErrorInfo> Errors;
+
+  bool readToken(Token& token);
+  void skipSpaces();
+  bool match(Location pattern, int patternLength);
+  bool readComment();
+  bool readCStyleComment();
+  bool readCppStyleComment();
+  bool readString();
+  bool readStringSingleQuote();
+  bool readNumber(bool checkInf);
+  bool readValue();
+  bool readObject(Token& token);
+  bool readArray(Token& token);
+  bool decodeNumber(Token& token);
+  bool decodeNumber(Token& token, Value& decoded);
+  bool decodeString(Token& token);
+  bool decodeString(Token& token, JSONCPP_STRING& decoded);
+  bool decodeDouble(Token& token);
+  bool decodeDouble(Token& token, Value& decoded);
+  bool decodeUnicodeCodePoint(Token& token,
+                              Location& current,
+                              Location end,
+                              unsigned int& unicode);
+  bool decodeUnicodeEscapeSequence(Token& token,
+                                   Location& current,
+                                   Location end,
+                                   unsigned int& unicode);
+  bool addError(const JSONCPP_STRING& message, Token& token, Location extra = 0);
+  bool recoverFromError(TokenType skipUntilToken);
+  bool addErrorAndRecover(const JSONCPP_STRING& message,
+                          Token& token,
+                          TokenType skipUntilToken);
+  void skipUntilSpace();
+  Value& currentValue();
+  Char getNextChar();
+  void
+  getLocationLineAndColumn(Location location, int& line, int& column) const;
+  JSONCPP_STRING getLocationLineAndColumn(Location location) const;
+  void addComment(Location begin, Location end, CommentPlacement placement);
+  void skipCommentTokens(Token& token);
+
+  static JSONCPP_STRING normalizeEOL(Location begin, Location end);
+  static bool containsNewLine(Location begin, Location end);
+
+  typedef std::stack<Value*> Nodes;
+  Nodes nodes_;
+  Errors errors_;
+  JSONCPP_STRING document_;
+  Location begin_;
+  Location end_;
+  Location current_;
+  Location lastValueEnd_;
+  Value* lastValue_;
+  JSONCPP_STRING commentsBefore_;
+
+  OurFeatures const features_;
+  bool collectComments_;
+};  // OurReader
+
+// complete copy of Read impl, for OurReader
+
+bool OurReader::containsNewLine(OurReader::Location begin, OurReader::Location end) {
+  for (; begin < end; ++begin)
+    if (*begin == '\n' || *begin == '\r')
+      return true;
+  return false;
+}
+
+OurReader::OurReader(OurFeatures const& features)
+    : errors_(), document_(), begin_(), end_(), current_(), lastValueEnd_(),
+      lastValue_(), commentsBefore_(),
+      features_(features), collectComments_() {
+}
+
+bool OurReader::parse(const char* beginDoc,
+                   const char* endDoc,
+                   Value& root,
+                   bool collectComments) {
+  if (!features_.allowComments_) {
+    collectComments = false;
+  }
+
+  begin_ = beginDoc;
+  end_ = endDoc;
+  collectComments_ = collectComments;
+  current_ = begin_;
+  lastValueEnd_ = 0;
+  lastValue_ = 0;
+  commentsBefore_.clear();
+  errors_.clear();
+  while (!nodes_.empty())
+    nodes_.pop();
+  nodes_.push(&root);
+
+  bool successful = readValue();
+  Token token;
+  skipCommentTokens(token);
+  if (features_.failIfExtra_) {
+    if ((features_.strictRoot_ || token.type_ != tokenError) && token.type_ != tokenEndOfStream) {
+      addError("Extra non-whitespace after JSON value.", token);
+      return false;
+    }
+  }
+  if (collectComments_ && !commentsBefore_.empty())
+    root.setComment(commentsBefore_, commentAfter);
+  if (features_.strictRoot_) {
+    if (!root.isArray() && !root.isObject()) {
+      // Set error location to start of doc, ideally should be first token found
+      // in doc
+      token.type_ = tokenError;
+      token.start_ = beginDoc;
+      token.end_ = endDoc;
+      addError(
+          "A valid JSON document must be either an array or an object value.",
+          token);
+      return false;
+    }
+  }
+  return successful;
+}
+
+bool OurReader::readValue() {
+  //  To preserve the old behaviour we cast size_t to int.
+  if (static_cast<int>(nodes_.size()) > features_.stackLimit_) throwRuntimeError("Exceeded stackLimit in readValue().");
+  Token token;
+  skipCommentTokens(token);
+  bool successful = true;
+
+  if (collectComments_ && !commentsBefore_.empty()) {
+    currentValue().setComment(commentsBefore_, commentBefore);
+    commentsBefore_.clear();
+  }
+
+  switch (token.type_) {
+  case tokenObjectBegin:
+    successful = readObject(token);
+    currentValue().setOffsetLimit(current_ - begin_);
+    break;
+  case tokenArrayBegin:
+    successful = readArray(token);
+    currentValue().setOffsetLimit(current_ - begin_);
+    break;
+  case tokenNumber:
+    successful = decodeNumber(token);
+    break;
+  case tokenString:
+    successful = decodeString(token);
+    break;
+  case tokenTrue:
+    {
+    Value v(true);
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenFalse:
+    {
+    Value v(false);
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenNull:
+    {
+    Value v;
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenNaN:
+    {
+    Value v(std::numeric_limits<double>::quiet_NaN());
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenPosInf:
+    {
+    Value v(std::numeric_limits<double>::infinity());
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenNegInf:
+    {
+    Value v(-std::numeric_limits<double>::infinity());
+    currentValue().swapPayload(v);
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    }
+    break;
+  case tokenArraySeparator:
+  case tokenObjectEnd:
+  case tokenArrayEnd:
+    if (features_.allowDroppedNullPlaceholders_) {
+      // "Un-read" the current token and mark the current value as a null
+      // token.
+      current_--;
+      Value v;
+      currentValue().swapPayload(v);
+      currentValue().setOffsetStart(current_ - begin_ - 1);
+      currentValue().setOffsetLimit(current_ - begin_);
+      break;
+    } // else, fall through ...
+  default:
+    currentValue().setOffsetStart(token.start_ - begin_);
+    currentValue().setOffsetLimit(token.end_ - begin_);
+    return addError("Syntax error: value, object or array expected.", token);
+  }
+
+  if (collectComments_) {
+    lastValueEnd_ = current_;
+    lastValue_ = &currentValue();
+  }
+
+  return successful;
+}
+
+void OurReader::skipCommentTokens(Token& token) {
+  if (features_.allowComments_) {
+    do {
+      readToken(token);
+    } while (token.type_ == tokenComment);
+  } else {
+    readToken(token);
+  }
+}
+
+bool OurReader::readToken(Token& token) {
+  skipSpaces();
+  token.start_ = current_;
+  Char c = getNextChar();
+  bool ok = true;
+  switch (c) {
+  case '{':
+    token.type_ = tokenObjectBegin;
+    break;
+  case '}':
+    token.type_ = tokenObjectEnd;
+    break;
+  case '[':
+    token.type_ = tokenArrayBegin;
+    break;
+  case ']':
+    token.type_ = tokenArrayEnd;
+    break;
+  case '"':
+    token.type_ = tokenString;
+    ok = readString();
+    break;
+  case '\'':
+    if (features_.allowSingleQuotes_) {
+    token.type_ = tokenString;
+    ok = readStringSingleQuote();
+    break;
+    } // else fall through
+  case '/':
+    token.type_ = tokenComment;
+    ok = readComment();
+    break;
+  case '0':
+  case '1':
+  case '2':
+  case '3':
+  case '4':
+  case '5':
+  case '6':
+  case '7':
+  case '8':
+  case '9':
+    token.type_ = tokenNumber;
+    readNumber(false);
+    break;
+  case '-':
+    if (readNumber(true)) {
+      token.type_ = tokenNumber;
+    } else {
+      token.type_ = tokenNegInf;
+      ok = features_.allowSpecialFloats_ && match("nfinity", 7);
+    }
+    break;
+  case 't':
+    token.type_ = tokenTrue;
+    ok = match("rue", 3);
+    break;
+  case 'f':
+    token.type_ = tokenFalse;
+    ok = match("alse", 4);
+    break;
+  case 'n':
+    token.type_ = tokenNull;
+    ok = match("ull", 3);
+    break;
+  case 'N':
+    if (features_.allowSpecialFloats_) {
+      token.type_ = tokenNaN;
+      ok = match("aN", 2);
+    } else {
+      ok = false;
+    }
+    break;
+  case 'I':
+    if (features_.allowSpecialFloats_) {
+      token.type_ = tokenPosInf;
+      ok = match("nfinity", 7);
+    } else {
+      ok = false;
+    }
+    break;
+  case ',':
+    token.type_ = tokenArraySeparator;
+    break;
+  case ':':
+    token.type_ = tokenMemberSeparator;
+    break;
+  case 0:
+    token.type_ = tokenEndOfStream;
+    break;
+  default:
+    ok = false;
+    break;
+  }
+  if (!ok)
+    token.type_ = tokenError;
+  token.end_ = current_;
+  return true;
+}
+
+void OurReader::skipSpaces() {
+  while (current_ != end_) {
+    Char c = *current_;
+    if (c == ' ' || c == '\t' || c == '\r' || c == '\n')
+      ++current_;
+    else
+      break;
+  }
+}
+
+bool OurReader::match(Location pattern, int patternLength) {
+  if (end_ - current_ < patternLength)
+    return false;
+  int index = patternLength;
+  while (index--)
+    if (current_[index] != pattern[index])
+      return false;
+  current_ += patternLength;
+  return true;
+}
+
+bool OurReader::readComment() {
+  Location commentBegin = current_ - 1;
+  Char c = getNextChar();
+  bool successful = false;
+  if (c == '*')
+    successful = readCStyleComment();
+  else if (c == '/')
+    successful = readCppStyleComment();
+  if (!successful)
+    return false;
+
+  if (collectComments_) {
+    CommentPlacement placement = commentBefore;
+    if (lastValueEnd_ && !containsNewLine(lastValueEnd_, commentBegin)) {
+      if (c != '*' || !containsNewLine(commentBegin, current_))
+        placement = commentAfterOnSameLine;
+    }
+
+    addComment(commentBegin, current_, placement);
+  }
+  return true;
+}
+
+JSONCPP_STRING OurReader::normalizeEOL(OurReader::Location begin, OurReader::Location end) {
+  JSONCPP_STRING normalized;
+  normalized.reserve(static_cast<size_t>(end - begin));
+  OurReader::Location current = begin;
+  while (current != end) {
+    char c = *current++;
+    if (c == '\r') {
+      if (current != end && *current == '\n')
+         // convert dos EOL
+         ++current;
+      // convert Mac EOL
+      normalized += '\n';
+    } else {
+      normalized += c;
+    }
+  }
+  return normalized;
+}
+
+void
+OurReader::addComment(Location begin, Location end, CommentPlacement placement) {
+  assert(collectComments_);
+  const JSONCPP_STRING& normalized = normalizeEOL(begin, end);
+  if (placement == commentAfterOnSameLine) {
+    assert(lastValue_ != 0);
+    lastValue_->setComment(normalized, placement);
+  } else {
+    commentsBefore_ += normalized;
+  }
+}
+
+bool OurReader::readCStyleComment() {
+  while ((current_ + 1) < end_) {
+    Char c = getNextChar();
+    if (c == '*' && *current_ == '/')
+      break;
+  }
+  return getNextChar() == '/';
+}
+
+bool OurReader::readCppStyleComment() {
+  while (current_ != end_) {
+    Char c = getNextChar();
+    if (c == '\n')
+      break;
+    if (c == '\r') {
+      // Consume DOS EOL. It will be normalized in addComment.
+      if (current_ != end_ && *current_ == '\n')
+        getNextChar();
+      // Break on Moc OS 9 EOL.
+      break;
+    }
+  }
+  return true;
+}
+
+bool OurReader::readNumber(bool checkInf) {
+  const char *p = current_;
+  if (checkInf && p != end_ && *p == 'I') {
+    current_ = ++p;
+    return false;
+  }
+  char c = '0'; // stopgap for already consumed character
+  // integral part
+  while (c >= '0' && c <= '9')
+    c = (current_ = p) < end_ ? *p++ : '\0';
+  // fractional part
+  if (c == '.') {
+    c = (current_ = p) < end_ ? *p++ : '\0';
+    while (c >= '0' && c <= '9')
+      c = (current_ = p) < end_ ? *p++ : '\0';
+  }
+  // exponential part
+  if (c == 'e' || c == 'E') {
+    c = (current_ = p) < end_ ? *p++ : '\0';
+    if (c == '+' || c == '-')
+      c = (current_ = p) < end_ ? *p++ : '\0';
+    while (c >= '0' && c <= '9')
+      c = (current_ = p) < end_ ? *p++ : '\0';
+  }
+  return true;
+}
+bool OurReader::readString() {
+  Char c = 0;
+  while (current_ != end_) {
+    c = getNextChar();
+    if (c == '\\')
+      getNextChar();
+    else if (c == '"')
+      break;
+  }
+  return c == '"';
+}
+
+
+bool OurReader::readStringSingleQuote() {
+  Char c = 0;
+  while (current_ != end_) {
+    c = getNextChar();
+    if (c == '\\')
+      getNextChar();
+    else if (c == '\'')
+      break;
+  }
+  return c == '\'';
+}
+
+bool OurReader::readObject(Token& tokenStart) {
+  Token tokenName;
+  JSONCPP_STRING name;
+  Value init(objectValue);
+  currentValue().swapPayload(init);
+  currentValue().setOffsetStart(tokenStart.start_ - begin_);
+  while (readToken(tokenName)) {
+    bool initialTokenOk = true;
+    while (tokenName.type_ == tokenComment && initialTokenOk)
+      initialTokenOk = readToken(tokenName);
+    if (!initialTokenOk)
+      break;
+    if (tokenName.type_ == tokenObjectEnd && name.empty()) // empty object
+      return true;
+    name.clear();
+    if (tokenName.type_ == tokenString) {
+      if (!decodeString(tokenName, name))
+        return recoverFromError(tokenObjectEnd);
+    } else if (tokenName.type_ == tokenNumber && features_.allowNumericKeys_) {
+      Value numberName;
+      if (!decodeNumber(tokenName, numberName))
+        return recoverFromError(tokenObjectEnd);
+      name = numberName.asString();
+    } else {
+      break;
+    }
+
+    Token colon;
+    if (!readToken(colon) || colon.type_ != tokenMemberSeparator) {
+      return addErrorAndRecover(
+          "Missing ':' after object member name", colon, tokenObjectEnd);
+    }
+    if (name.length() >= (1U<<30)) throwRuntimeError("keylength >= 2^30");
+    if (features_.rejectDupKeys_ && currentValue().isMember(name)) {
+      JSONCPP_STRING msg = "Duplicate key: '" + name + "'";
+      return addErrorAndRecover(
+          msg, tokenName, tokenObjectEnd);
+    }
+    Value& value = currentValue()[name];
+    nodes_.push(&value);
+    bool ok = readValue();
+    nodes_.pop();
+    if (!ok) // error already set
+      return recoverFromError(tokenObjectEnd);
+
+    Token comma;
+    if (!readToken(comma) ||
+        (comma.type_ != tokenObjectEnd && comma.type_ != tokenArraySeparator &&
+         comma.type_ != tokenComment)) {
+      return addErrorAndRecover(
+          "Missing ',' or '}' in object declaration", comma, tokenObjectEnd);
+    }
+    bool finalizeTokenOk = true;
+    while (comma.type_ == tokenComment && finalizeTokenOk)
+      finalizeTokenOk = readToken(comma);
+    if (comma.type_ == tokenObjectEnd)
+      return true;
+  }
+  return addErrorAndRecover(
+      "Missing '}' or object member name", tokenName, tokenObjectEnd);
+}
+
+bool OurReader::readArray(Token& tokenStart) {
+  Value init(arrayValue);
+  currentValue().swapPayload(init);
+  currentValue().setOffsetStart(tokenStart.start_ - begin_);
+  skipSpaces();
+  if (current_ != end_ && *current_ == ']') // empty array
+  {
+    Token endArray;
+    readToken(endArray);
+    return true;
+  }
+  int index = 0;
+  for (;;) {
+    Value& value = currentValue()[index++];
+    nodes_.push(&value);
+    bool ok = readValue();
+    nodes_.pop();
+    if (!ok) // error already set
+      return recoverFromError(tokenArrayEnd);
+
+    Token token;
+    // Accept Comment after last item in the array.
+    ok = readToken(token);
+    while (token.type_ == tokenComment && ok) {
+      ok = readToken(token);
+    }
+    bool badTokenType =
+        (token.type_ != tokenArraySeparator && token.type_ != tokenArrayEnd);
+    if (!ok || badTokenType) {
+      return addErrorAndRecover(
+          "Missing ',' or ']' in array declaration", token, tokenArrayEnd);
+    }
+    if (token.type_ == tokenArrayEnd)
+      break;
+  }
+  return true;
+}
+
+bool OurReader::decodeNumber(Token& token) {
+  Value decoded;
+  if (!decodeNumber(token, decoded))
+    return false;
+  currentValue().swapPayload(decoded);
+  currentValue().setOffsetStart(token.start_ - begin_);
+  currentValue().setOffsetLimit(token.end_ - begin_);
+  return true;
+}
+
+bool OurReader::decodeNumber(Token& token, Value& decoded) {
+  // Attempts to parse the number as an integer. If the number is
+  // larger than the maximum supported value of an integer then
+  // we decode the number as a double.
+  Location current = token.start_;
+  bool isNegative = *current == '-';
+  if (isNegative)
+    ++current;
+  // TODO: Help the compiler do the div and mod at compile time or get rid of them.
+  Value::LargestUInt maxIntegerValue =
+      isNegative ? Value::LargestUInt(-Value::minLargestInt)
+                 : Value::maxLargestUInt;
+  Value::LargestUInt threshold = maxIntegerValue / 10;
+  Value::LargestUInt value = 0;
+  while (current < token.end_) {
+    Char c = *current++;
+    if (c < '0' || c > '9')
+      return decodeDouble(token, decoded);
+    Value::UInt digit(static_cast<Value::UInt>(c - '0'));
+    if (value >= threshold) {
+      // We've hit or exceeded the max value divided by 10 (rounded down). If
+      // a) we've only just touched the limit, b) this is the last digit, and
+      // c) it's small enough to fit in that rounding delta, we're okay.
+      // Otherwise treat this number as a double to avoid overflow.
+      if (value > threshold || current != token.end_ ||
+          digit > maxIntegerValue % 10) {
+        return decodeDouble(token, decoded);
+      }
+    }
+    value = value * 10 + digit;
+  }
+  if (isNegative)
+    decoded = -Value::LargestInt(value);
+  else if (value <= Value::LargestUInt(Value::maxInt))
+    decoded = Value::LargestInt(value);
+  else
+    decoded = value;
+  return true;
+}
+
+bool OurReader::decodeDouble(Token& token) {
+  Value decoded;
+  if (!decodeDouble(token, decoded))
+    return false;
+  currentValue().swapPayload(decoded);
+  currentValue().setOffsetStart(token.start_ - begin_);
+  currentValue().setOffsetLimit(token.end_ - begin_);
+  return true;
+}
+
+bool OurReader::decodeDouble(Token& token, Value& decoded) {
+  double value = 0;
+  const int bufferSize = 32;
+  int count;
+  ptrdiff_t const length = token.end_ - token.start_;
+
+  // Sanity check to avoid buffer overflow exploits.
+  if (length < 0) {
+    return addError("Unable to parse token length", token);
+  }
+  size_t const ulength = static_cast<size_t>(length);
+
+  // Avoid using a string constant for the format control string given to
+  // sscanf, as this can cause hard to debug crashes on OS X. See here for more
+  // info:
+  //
+  //     http://developer.apple.com/library/mac/#DOCUMENTATION/DeveloperTools/gcc-4.0.1/gcc/Incompatibilities.html
+  char format[] = "%lf";
+
+  if (length <= bufferSize) {
+    Char buffer[bufferSize + 1];
+    memcpy(buffer, token.start_, ulength);
+    buffer[length] = 0;
+    fixNumericLocaleInput(buffer, buffer + length);
+    count = sscanf(buffer, format, &value);
+  } else {
+    JSONCPP_STRING buffer(token.start_, token.end_);
+    count = sscanf(buffer.c_str(), format, &value);
+  }
+
+  if (count != 1)
+    return addError("'" + JSONCPP_STRING(token.start_, token.end_) +
+                        "' is not a number.",
+                    token);
+  decoded = value;
+  return true;
+}
+
+bool OurReader::decodeString(Token& token) {
+  JSONCPP_STRING decoded_string;
+  if (!decodeString(token, decoded_string))
+    return false;
+  Value decoded(decoded_string);
+  currentValue().swapPayload(decoded);
+  currentValue().setOffsetStart(token.start_ - begin_);
+  currentValue().setOffsetLimit(token.end_ - begin_);
+  return true;
+}
+
+bool OurReader::decodeString(Token& token, JSONCPP_STRING& decoded) {
+  decoded.reserve(static_cast<size_t>(token.end_ - token.start_ - 2));
+  Location current = token.start_ + 1; // skip '"'
+  Location end = token.end_ - 1;       // do not include '"'
+  while (current != end) {
+    Char c = *current++;
+    if (c == '"')
+      break;
+    else if (c == '\\') {
+      if (current == end)
+        return addError("Empty escape sequence in string", token, current);
+      Char escape = *current++;
+      switch (escape) {
+      case '"':
+        decoded += '"';
+        break;
+      case '/':
+        decoded += '/';
+        break;
+      case '\\':
+        decoded += '\\';
+        break;
+      case 'b':
+        decoded += '\b';
+        break;
+      case 'f':
+        decoded += '\f';
+        break;
+      case 'n':
+        decoded += '\n';
+        break;
+      case 'r':
+        decoded += '\r';
+        break;
+      case 't':
+        decoded += '\t';
+        break;
+      case 'u': {
+        unsigned int unicode;
+        if (!decodeUnicodeCodePoint(token, current, end, unicode))
+          return false;
+        decoded += codePointToUTF8(unicode);
+      } break;
+      default:
+        return addError("Bad escape sequence in string", token, current);
+      }
+    } else {
+      decoded += c;
+    }
+  }
+  return true;
+}
+
+bool OurReader::decodeUnicodeCodePoint(Token& token,
+                                    Location& current,
+                                    Location end,
+                                    unsigned int& unicode) {
+
+  if (!decodeUnicodeEscapeSequence(token, current, end, unicode))
+    return false;
+  if (unicode >= 0xD800 && unicode <= 0xDBFF) {
+    // surrogate pairs
+    if (end - current < 6)
+      return addError(
+          "additional six characters expected to parse unicode surrogate pair.",
+          token,
+          current);
+    unsigned int surrogatePair;
+    if (*(current++) == '\\' && *(current++) == 'u') {
+      if (decodeUnicodeEscapeSequence(token, current, end, surrogatePair)) {
+        unicode = 0x10000 + ((unicode & 0x3FF) << 10) + (surrogatePair & 0x3FF);
+      } else
+        return false;
+    } else
+      return addError("expecting another \\u token to begin the second half of "
+                      "a unicode surrogate pair",
+                      token,
+                      current);
+  }
+  return true;
+}
+
+bool OurReader::decodeUnicodeEscapeSequence(Token& token,
+                                         Location& current,
+                                         Location end,
+                                         unsigned int& ret_unicode) {
+  if (end - current < 4)
+    return addError(
+        "Bad unicode escape sequence in string: four digits expected.",
+        token,
+        current);
+  int unicode = 0;
+  for (int index = 0; index < 4; ++index) {
+    Char c = *current++;
+    unicode *= 16;
+    if (c >= '0' && c <= '9')
+      unicode += c - '0';
+    else if (c >= 'a' && c <= 'f')
+      unicode += c - 'a' + 10;
+    else if (c >= 'A' && c <= 'F')
+      unicode += c - 'A' + 10;
+    else
+      return addError(
+          "Bad unicode escape sequence in string: hexadecimal digit expected.",
+          token,
+          current);
+  }
+  ret_unicode = static_cast<unsigned int>(unicode);
+  return true;
+}
+
+bool
+OurReader::addError(const JSONCPP_STRING& message, Token& token, Location extra) {
+  ErrorInfo info;
+  info.token_ = token;
+  info.message_ = message;
+  info.extra_ = extra;
+  errors_.push_back(info);
+  return false;
+}
+
+bool OurReader::recoverFromError(TokenType skipUntilToken) {
+  size_t errorCount = errors_.size();
+  Token skip;
+  for (;;) {
+    if (!readToken(skip))
+      errors_.resize(errorCount); // discard errors caused by recovery
+    if (skip.type_ == skipUntilToken || skip.type_ == tokenEndOfStream)
+      break;
+  }
+  errors_.resize(errorCount);
+  return false;
+}
+
+bool OurReader::addErrorAndRecover(const JSONCPP_STRING& message,
+                                Token& token,
+                                TokenType skipUntilToken) {
+  addError(message, token);
+  return recoverFromError(skipUntilToken);
+}
+
+Value& OurReader::currentValue() { return *(nodes_.top()); }
+
+OurReader::Char OurReader::getNextChar() {
+  if (current_ == end_)
+    return 0;
+  return *current_++;
+}
+
+void OurReader::getLocationLineAndColumn(Location location,
+                                      int& line,
+                                      int& column) const {
+  Location current = begin_;
+  Location lastLineStart = current;
+  line = 0;
+  while (current < location && current != end_) {
+    Char c = *current++;
+    if (c == '\r') {
+      if (*current == '\n')
+        ++current;
+      lastLineStart = current;
+      ++line;
+    } else if (c == '\n') {
+      lastLineStart = current;
+      ++line;
+    }
+  }
+  // column & line start at 1
+  column = int(location - lastLineStart) + 1;
+  ++line;
+}
+
+JSONCPP_STRING OurReader::getLocationLineAndColumn(Location location) const {
+  int line, column;
+  getLocationLineAndColumn(location, line, column);
+  char buffer[18 + 16 + 16 + 1];
+  snprintf(buffer, sizeof(buffer), "Line %d, Column %d", line, column);
+  return buffer;
+}
+
+JSONCPP_STRING OurReader::getFormattedErrorMessages() const {
+  JSONCPP_STRING formattedMessage;
+  for (Errors::const_iterator itError = errors_.begin();
+       itError != errors_.end();
+       ++itError) {
+    const ErrorInfo& error = *itError;
+    formattedMessage +=
+        "* " + getLocationLineAndColumn(error.token_.start_) + "\n";
+    formattedMessage += "  " + error.message_ + "\n";
+    if (error.extra_)
+      formattedMessage +=
+          "See " + getLocationLineAndColumn(error.extra_) + " for detail.\n";
+  }
+  return formattedMessage;
+}
+
+std::vector<OurReader::StructuredError> OurReader::getStructuredErrors() const {
+  std::vector<OurReader::StructuredError> allErrors;
+  for (Errors::const_iterator itError = errors_.begin();
+       itError != errors_.end();
+       ++itError) {
+    const ErrorInfo& error = *itError;
+    OurReader::StructuredError structured;
+    structured.offset_start = error.token_.start_ - begin_;
+    structured.offset_limit = error.token_.end_ - begin_;
+    structured.message = error.message_;
+    allErrors.push_back(structured);
+  }
+  return allErrors;
+}
+
+bool OurReader::pushError(const Value& value, const JSONCPP_STRING& message) {
+  ptrdiff_t length = end_ - begin_;
+  if(value.getOffsetStart() > length
+    || value.getOffsetLimit() > length)
+    return false;
+  Token token;
+  token.type_ = tokenError;
+  token.start_ = begin_ + value.getOffsetStart();
+  token.end_ = end_ + value.getOffsetLimit();
+  ErrorInfo info;
+  info.token_ = token;
+  info.message_ = message;
+  info.extra_ = 0;
+  errors_.push_back(info);
+  return true;
+}
+
+bool OurReader::pushError(const Value& value, const JSONCPP_STRING& message, const Value& extra) {
+  ptrdiff_t length = end_ - begin_;
+  if(value.getOffsetStart() > length
+    || value.getOffsetLimit() > length
+    || extra.getOffsetLimit() > length)
+    return false;
+  Token token;
+  token.type_ = tokenError;
+  token.start_ = begin_ + value.getOffsetStart();
+  token.end_ = begin_ + value.getOffsetLimit();
+  ErrorInfo info;
+  info.token_ = token;
+  info.message_ = message;
+  info.extra_ = begin_ + extra.getOffsetStart();
+  errors_.push_back(info);
+  return true;
+}
+
+bool OurReader::good() const {
+  return !errors_.size();
+}
+
+
+class OurCharReader : public CharReader {
+  bool const collectComments_;
+  OurReader reader_;
+public:
+  OurCharReader(
+    bool collectComments,
+    OurFeatures const& features)
+  : collectComments_(collectComments)
+  , reader_(features)
+  {}
+  bool parse(
+      char const* beginDoc, char const* endDoc,
+      Value* root, JSONCPP_STRING* errs) JSONCPP_OVERRIDE {
+    bool ok = reader_.parse(beginDoc, endDoc, *root, collectComments_);
+    if (errs) {
+      *errs = reader_.getFormattedErrorMessages();
+    }
+    return ok;
+  }
+};
+
+CharReaderBuilder::CharReaderBuilder()
+{
+  setDefaults(&settings_);
+}
+CharReaderBuilder::~CharReaderBuilder()
+{}
+CharReader* CharReaderBuilder::newCharReader() const
+{
+  bool collectComments = settings_["collectComments"].asBool();
+  OurFeatures features = OurFeatures::all();
+  features.allowComments_ = settings_["allowComments"].asBool();
+  features.strictRoot_ = settings_["strictRoot"].asBool();
+  features.allowDroppedNullPlaceholders_ = settings_["allowDroppedNullPlaceholders"].asBool();
+  features.allowNumericKeys_ = settings_["allowNumericKeys"].asBool();
+  features.allowSingleQuotes_ = settings_["allowSingleQuotes"].asBool();
+  features.stackLimit_ = settings_["stackLimit"].asInt();
+  features.failIfExtra_ = settings_["failIfExtra"].asBool();
+  features.rejectDupKeys_ = settings_["rejectDupKeys"].asBool();
+  features.allowSpecialFloats_ = settings_["allowSpecialFloats"].asBool();
+  return new OurCharReader(collectComments, features);
+}
+static void getValidReaderKeys(std::set<JSONCPP_STRING>* valid_keys)
+{
+  valid_keys->clear();
+  valid_keys->insert("collectComments");
+  valid_keys->insert("allowComments");
+  valid_keys->insert("strictRoot");
+  valid_keys->insert("allowDroppedNullPlaceholders");
+  valid_keys->insert("allowNumericKeys");
+  valid_keys->insert("allowSingleQuotes");
+  valid_keys->insert("stackLimit");
+  valid_keys->insert("failIfExtra");
+  valid_keys->insert("rejectDupKeys");
+  valid_keys->insert("allowSpecialFloats");
+}
+bool CharReaderBuilder::validate(Json::Value* invalid) const
+{
+  Json::Value my_invalid;
+  if (!invalid) invalid = &my_invalid;  // so we do not need to test for NULL
+  Json::Value& inv = *invalid;
+  std::set<JSONCPP_STRING> valid_keys;
+  getValidReaderKeys(&valid_keys);
+  Value::Members keys = settings_.getMemberNames();
+  size_t n = keys.size();
+  for (size_t i = 0; i < n; ++i) {
+    JSONCPP_STRING const& key = keys[i];
+    if (valid_keys.find(key) == valid_keys.end()) {
+      inv[key] = settings_[key];
+    }
+  }
+  return 0u == inv.size();
+}
+Value& CharReaderBuilder::operator[](JSONCPP_STRING key)
+{
+  return settings_[key];
+}
+// static
+void CharReaderBuilder::strictMode(Json::Value* settings)
+{
+//! [CharReaderBuilderStrictMode]
+  (*settings)["allowComments"] = false;
+  (*settings)["strictRoot"] = true;
+  (*settings)["allowDroppedNullPlaceholders"] = false;
+  (*settings)["allowNumericKeys"] = false;
+  (*settings)["allowSingleQuotes"] = false;
+  (*settings)["stackLimit"] = 1000;
+  (*settings)["failIfExtra"] = true;
+  (*settings)["rejectDupKeys"] = true;
+  (*settings)["allowSpecialFloats"] = false;
+//! [CharReaderBuilderStrictMode]
+}
+// static
+void CharReaderBuilder::setDefaults(Json::Value* settings)
+{
+//! [CharReaderBuilderDefaults]
+  (*settings)["collectComments"] = true;
+  (*settings)["allowComments"] = true;
+  (*settings)["strictRoot"] = false;
+  (*settings)["allowDroppedNullPlaceholders"] = false;
+  (*settings)["allowNumericKeys"] = false;
+  (*settings)["allowSingleQuotes"] = false;
+  (*settings)["stackLimit"] = 1000;
+  (*settings)["failIfExtra"] = false;
+  (*settings)["rejectDupKeys"] = false;
+  (*settings)["allowSpecialFloats"] = false;
+//! [CharReaderBuilderDefaults]
+}
+
+//////////////////////////////////
+// global functions
+
+bool parseFromStream(
+    CharReader::Factory const& fact, JSONCPP_ISTREAM& sin,
+    Value* root, JSONCPP_STRING* errs)
+{
+  JSONCPP_OSTRINGSTREAM ssin;
+  ssin << sin.rdbuf();
+  JSONCPP_STRING doc = ssin.str();
+  char const* begin = doc.data();
+  char const* end = begin + doc.size();
+  // Note that we do not actually need a null-terminator.
+  CharReaderPtr const reader(fact.newCharReader());
+  return reader->parse(begin, end, root, errs);
+}
+
+JSONCPP_ISTREAM& operator>>(JSONCPP_ISTREAM& sin, Value& root) {
+  CharReaderBuilder b;
+  JSONCPP_STRING errs;
+  bool ok = parseFromStream(b, sin, &root, &errs);
+  if (!ok) {
+    throwRuntimeError(errs);
+  }
+  return sin;
+}
+
+} // namespace Json
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/json_tool.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/json_tool.h	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,115 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#ifndef LIB_JSONCPP_JSON_TOOL_H_INCLUDED
+#define LIB_JSONCPP_JSON_TOOL_H_INCLUDED
+
+#define NO_LOCALE_SUPPORT //---------------tgw----------
+
+// Also support old flag NO_LOCALE_SUPPORT
+#ifdef NO_LOCALE_SUPPORT
+#define JSONCPP_NO_LOCALE_SUPPORT
+#endif
+
+#ifndef JSONCPP_NO_LOCALE_SUPPORT
+#include <clocale>
+#endif
+
+/* This header provides common string manipulation support, such as UTF-8,
+ * portable conversion from/to string...
+ *
+ * It is an internal header that must not be exposed.
+ */
+
+namespace Json {
+static char getDecimalPoint() {
+#ifdef JSONCPP_NO_LOCALE_SUPPORT
+  return '\0';
+#else
+  struct lconv* lc = localeconv();
+  return lc ? *(lc->decimal_point) : '\0';
+#endif
+}
+
+/// Converts a unicode code-point to UTF-8.
+static inline JSONCPP_STRING codePointToUTF8(unsigned int cp) {
+  JSONCPP_STRING result;
+
+  // based on description from http://en.wikipedia.org/wiki/UTF-8
+
+  if (cp <= 0x7f) {
+    result.resize(1);
+    result[0] = static_cast<char>(cp);
+  } else if (cp <= 0x7FF) {
+    result.resize(2);
+    result[1] = static_cast<char>(0x80 | (0x3f & cp));
+    result[0] = static_cast<char>(0xC0 | (0x1f & (cp >> 6)));
+  } else if (cp <= 0xFFFF) {
+    result.resize(3);
+    result[2] = static_cast<char>(0x80 | (0x3f & cp));
+    result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
+    result[0] = static_cast<char>(0xE0 | (0xf & (cp >> 12)));
+  } else if (cp <= 0x10FFFF) {
+    result.resize(4);
+    result[3] = static_cast<char>(0x80 | (0x3f & cp));
+    result[2] = static_cast<char>(0x80 | (0x3f & (cp >> 6)));
+    result[1] = static_cast<char>(0x80 | (0x3f & (cp >> 12)));
+    result[0] = static_cast<char>(0xF0 | (0x7 & (cp >> 18)));
+  }
+
+  return result;
+}
+
+enum {
+  /// Constant that specify the size of the buffer that must be passed to
+  /// uintToString.
+  uintToStringBufferSize = 3 * sizeof(LargestUInt) + 1
+};
+
+// Defines a char buffer for use with uintToString().
+typedef char UIntToStringBuffer[uintToStringBufferSize];
+
+/** Converts an unsigned integer to string.
+ * @param value Unsigned integer to convert to string
+ * @param current Input/Output string buffer.
+ *        Must have at least uintToStringBufferSize chars free.
+ */
+static inline void uintToString(LargestUInt value, char*& current) {
+  *--current = 0;
+  do {
+    *--current = static_cast<char>(value % 10U + static_cast<unsigned>('0'));
+    value /= 10;
+  } while (value != 0);
+}
+
+/** Change ',' to '.' everywhere in buffer.
+ *
+ * We had a sophisticated way, but it did not work in WinCE.
+ * @see https://github.com/open-source-parsers/jsoncpp/pull/9
+ */
+static inline void fixNumericLocale(char* begin, char* end) {
+  while (begin < end) {
+    if (*begin == ',') {
+      *begin = '.';
+    }
+    ++begin;
+  }
+}
+
+static inline void fixNumericLocaleInput(char* begin, char* end) {
+  char decimalPoint = getDecimalPoint();
+  if (decimalPoint != '\0' && decimalPoint != '.') {
+    while (begin < end) {
+      if (*begin == '.') {
+        *begin = decimalPoint;
+      }
+      ++begin;
+    }
+  }
+}
+
+} // namespace Json {
+
+#endif // LIB_JSONCPP_JSON_TOOL_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/json_value.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/json_value.cpp	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,1661 @@
+// Copyright 2011 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include <json/assertions.h>
+#include <json/value.h>
+#include <json/writer.h>
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <math.h>
+#include <sstream>
+#include <utility>
+#include <cstring>
+#include <cassert>
+#ifdef JSON_USE_CPPTL
+#include <cpptl/conststring.h>
+#endif
+#include <cstddef> // size_t
+#include <algorithm> // min()
+
+#define JSON_ASSERT_UNREACHABLE assert(false)
+using namespace std;
+namespace Json {
+
+// This is a walkaround to avoid the static initialization of Value::null.
+// kNull must be word-aligned to avoid crashing on ARM.  We use an alignment of
+// 8 (instead of 4) as a bit of future-proofing.
+#if defined(__ARMEL__)
+#define ALIGNAS(byte_alignment) __attribute__((aligned(byte_alignment)))
+#else
+#define ALIGNAS(byte_alignment)
+#endif
+//static const unsigned char ALIGNAS(8) kNull[sizeof(Value)] = { 0 };
+//const unsigned char& kNullRef = kNull[0];
+//const Value& Value::null = reinterpret_cast<const Value&>(kNullRef);
+//const Value& Value::nullRef = null;
+
+// static
+Value const& Value::nullSingleton()
+{
+ static Value const nullStatic;
+ return nullStatic;
+}
+
+// for backwards compatibility, we'll leave these global references around, but DO NOT
+// use them in JSONCPP library code any more!
+Value const& Value::null = Value::nullSingleton();
+Value const& Value::nullRef = Value::nullSingleton();
+
+const Int Value::minInt = Int(~(UInt(-1) / 2));
+const Int Value::maxInt = Int(UInt(-1) / 2);
+const UInt Value::maxUInt = UInt(-1);
+#if defined(JSON_HAS_INT64)
+const Int64 Value::minInt64 = Int64(~(UInt64(-1) / 2));
+const Int64 Value::maxInt64 = Int64(UInt64(-1) / 2);
+const UInt64 Value::maxUInt64 = UInt64(-1);
+// The constant is hard-coded because some compiler have trouble
+// converting Value::maxUInt64 to a double correctly (AIX/xlC).
+// Assumes that UInt64 is a 64 bits integer.
+static const double maxUInt64AsDouble = 18446744073709551615.0;
+#endif // defined(JSON_HAS_INT64)
+const LargestInt Value::minLargestInt = LargestInt(~(LargestUInt(-1) / 2));
+const LargestInt Value::maxLargestInt = LargestInt(LargestUInt(-1) / 2);
+const LargestUInt Value::maxLargestUInt = LargestUInt(-1);
+
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+template <typename T, typename U>
+static inline bool InRange(double d, T min, U max) {
+  // The casts can lose precision, but we are looking only for
+  // an approximate range. Might fail on edge cases though. ~cdunn
+  //return d >= static_cast<double>(min) && d <= static_cast<double>(max);
+  return d >= min && d <= max;
+}
+#else  // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+static inline double integerToDouble(Json::UInt64 value) {
+  return static_cast<double>(Int64(value / 2)) * 2.0 + static_cast<double>(Int64(value & 1));
+}
+
+template <typename T> static inline double integerToDouble(T value) {
+  return static_cast<double>(value);
+}
+
+template <typename T, typename U>
+static inline bool InRange(double d, T min, U max) {
+  return d >= integerToDouble(min) && d <= integerToDouble(max);
+}
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+
+/** Duplicates the specified string value.
+ * @param value Pointer to the string to duplicate. Must be zero-terminated if
+ *              length is "unknown".
+ * @param length Length of the value. if equals to unknown, then it will be
+ *               computed using strlen(value).
+ * @return Pointer on the duplicate instance of string.
+ */
+static inline char* duplicateStringValue(const char* value,
+                                         size_t length)
+{
+  // Avoid an integer overflow in the call to malloc below by limiting length
+  // to a sane value.
+  if (length >= static_cast<size_t>(Value::maxInt))
+    length = Value::maxInt - 1;
+
+  char* newString = static_cast<char*>(malloc(length + 1));
+  if (newString == NULL) {
+    throwRuntimeError(
+        "in Json::Value::duplicateStringValue(): "
+        "Failed to allocate string value buffer");
+  }
+  memcpy(newString, value, length);
+  newString[length] = 0;
+  return newString;
+}
+
+/* Record the length as a prefix.
+ */
+static inline char* duplicateAndPrefixStringValue(
+    const char* value,
+    unsigned int length)
+{
+  // Avoid an integer overflow in the call to malloc below by limiting length
+  // to a sane value.
+  JSON_ASSERT_MESSAGE(length <= static_cast<unsigned>(Value::maxInt) - sizeof(unsigned) - 1U,
+                      "in Json::Value::duplicateAndPrefixStringValue(): "
+                      "length too big for prefixing");
+  unsigned actualLength = length + static_cast<unsigned>(sizeof(unsigned)) + 1U;
+  char* newString = static_cast<char*>(malloc(actualLength));
+  if (newString == 0) {
+    throwRuntimeError(
+        "in Json::Value::duplicateAndPrefixStringValue(): "
+        "Failed to allocate string value buffer");
+  }
+  *reinterpret_cast<unsigned*>(newString) = length;
+  memcpy(newString + sizeof(unsigned), value, length);
+  newString[actualLength - 1U] = 0; // to avoid buffer over-run accidents by users later
+  return newString;
+}
+inline static void decodePrefixedString(
+    bool isPrefixed, char const* prefixed,
+    unsigned* length, char const** value)
+{
+  if (!isPrefixed) {
+    *length = static_cast<unsigned>(strlen(prefixed));
+    *value = prefixed;
+  } else {
+    *length = *reinterpret_cast<unsigned const*>(prefixed);
+    *value = prefixed + sizeof(unsigned);
+  }
+}
+/** Free the string duplicated by duplicateStringValue()/duplicateAndPrefixStringValue().
+ */
+#if JSONCPP_USING_SECURE_MEMORY
+static inline void releasePrefixedStringValue(char* value) {
+  unsigned length = 0;
+  char const* valueDecoded;
+  decodePrefixedString(true, value, &length, &valueDecoded);
+  size_t const size = sizeof(unsigned) + length + 1U;
+  memset(value, 0, size);
+  free(value);
+}
+static inline void releaseStringValue(char* value, unsigned length) {
+  // length==0 => we allocated the strings memory
+  size_t size = (length==0) ? strlen(value) : length;
+  memset(value, 0, size);
+  free(value);
+}
+#else // !JSONCPP_USING_SECURE_MEMORY
+static inline void releasePrefixedStringValue(char* value) {
+  free(value);
+}
+static inline void releaseStringValue(char* value, unsigned) {
+  free(value);
+}
+#endif // JSONCPP_USING_SECURE_MEMORY
+
+} // namespace Json
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// ValueInternals...
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+#if !defined(JSON_IS_AMALGAMATION)
+
+#include "json_valueiterator.inl"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+
+namespace Json {
+
+Exception::Exception(JSONCPP_STRING const& msg)
+  : msg_(msg)
+{}
+Exception::~Exception() JSONCPP_NOEXCEPT
+{}
+char const* Exception::what() const JSONCPP_NOEXCEPT
+{
+  return msg_.c_str();
+}
+RuntimeError::RuntimeError(JSONCPP_STRING const& msg)
+  : Exception(msg)
+{}
+LogicError::LogicError(JSONCPP_STRING const& msg)
+  : Exception(msg)
+{}
+JSONCPP_NORETURN void throwRuntimeError(JSONCPP_STRING const& msg)
+{
+  //throw RuntimeError(msg);
+}
+JSONCPP_NORETURN void throwLogicError(JSONCPP_STRING const& msg)
+{
+  //throw LogicError(msg);
+}
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class Value::CommentInfo
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+Value::CommentInfo::CommentInfo() : comment_(0)
+{}
+
+Value::CommentInfo::~CommentInfo() {
+  if (comment_)
+    releaseStringValue(comment_, 0u);
+}
+
+void Value::CommentInfo::setComment(const char* text, size_t len) {
+  if (comment_) {
+    releaseStringValue(comment_, 0u);
+    comment_ = 0;
+  }
+  JSON_ASSERT(text != 0);
+  JSON_ASSERT_MESSAGE(
+      text[0] == '\0' || text[0] == '/',
+      "in Json::Value::setComment(): Comments must start with /");
+  // It seems that /**/ style comments are acceptable as well.
+  comment_ = duplicateStringValue(text, len);
+}
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class Value::CZString
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+// Notes: policy_ indicates if the string was allocated when
+// a string is stored.
+
+Value::CZString::CZString(ArrayIndex aindex) : cstr_(0), index_(aindex) {}
+
+Value::CZString::CZString(char const* str, unsigned ulength, DuplicationPolicy allocate)
+    : cstr_(str) {
+  // allocate != duplicate
+  storage_.policy_ = allocate & 0x3;
+  storage_.length_ = ulength & 0x3FFFFFFF;
+}
+
+Value::CZString::CZString(const CZString& other) {
+  cstr_ = (other.storage_.policy_ != noDuplication && other.cstr_ != 0
+				 ? duplicateStringValue(other.cstr_, other.storage_.length_)
+				 : other.cstr_);
+  storage_.policy_ = static_cast<unsigned>(other.cstr_
+                 ? (static_cast<DuplicationPolicy>(other.storage_.policy_) == noDuplication
+                     ? noDuplication : duplicate)
+                 : static_cast<DuplicationPolicy>(other.storage_.policy_)) & 3U;
+  storage_.length_ = other.storage_.length_;
+}
+
+#if JSON_HAS_RVALUE_REFERENCES
+Value::CZString::CZString(CZString&& other)
+  : cstr_(other.cstr_), index_(other.index_) {
+  other.cstr_ = nullptr;
+}
+#endif
+
+Value::CZString::~CZString() {
+  if (cstr_ && storage_.policy_ == duplicate) {
+	  releaseStringValue(const_cast<char*>(cstr_), storage_.length_ + 1u); //+1 for null terminating character for sake of completeness but not actually necessary
+  }
+}
+
+void Value::CZString::swap(CZString& other) {
+  std::swap(cstr_, other.cstr_);
+  std::swap(index_, other.index_);
+}
+
+Value::CZString& Value::CZString::operator=(const CZString& other) {
+  cstr_ = other.cstr_;
+  index_ = other.index_;
+  return *this;
+}
+
+#if JSON_HAS_RVALUE_REFERENCES
+Value::CZString& Value::CZString::operator=(CZString&& other) {
+  cstr_ = other.cstr_;
+  index_ = other.index_;
+  other.cstr_ = nullptr;
+  return *this;
+}
+#endif
+
+bool Value::CZString::operator<(const CZString& other) const {
+  if (!cstr_) return index_ < other.index_;
+  //return strcmp(cstr_, other.cstr_) < 0;
+  // Assume both are strings.
+  unsigned this_len = this->storage_.length_;
+  unsigned other_len = other.storage_.length_;
+  unsigned min_len = std::min<unsigned>(this_len, other_len);
+  JSON_ASSERT(this->cstr_ && other.cstr_);
+  int comp = memcmp(this->cstr_, other.cstr_, min_len);
+  if (comp < 0) return true;
+  if (comp > 0) return false;
+  return (this_len < other_len);
+}
+
+bool Value::CZString::operator==(const CZString& other) const {
+  if (!cstr_) return index_ == other.index_;
+  //return strcmp(cstr_, other.cstr_) == 0;
+  // Assume both are strings.
+  unsigned this_len = this->storage_.length_;
+  unsigned other_len = other.storage_.length_;
+  if (this_len != other_len) return false;
+  JSON_ASSERT(this->cstr_ && other.cstr_);
+  int comp = memcmp(this->cstr_, other.cstr_, this_len);
+  return comp == 0;
+}
+
+ArrayIndex Value::CZString::index() const { return index_; }
+
+//const char* Value::CZString::c_str() const { return cstr_; }
+const char* Value::CZString::data() const { return cstr_; }
+unsigned Value::CZString::length() const { return storage_.length_; }
+bool Value::CZString::isStaticString() const { return storage_.policy_ == noDuplication; }
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class Value::Value
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+/*! \internal Default constructor initialization must be equivalent to:
+ * memset( this, 0, sizeof(Value) )
+ * This optimization is used in ValueInternalMap fast allocator.
+ */
+Value::Value(ValueType vtype) {
+  static char const emptyString[] = "";
+  initBasic(vtype);
+  switch (vtype) {
+  case nullValue:
+    break;
+  case intValue:
+  case uintValue:
+    value_.int_ = 0;
+    break;
+  case realValue:
+    value_.real_ = 0.0;
+    break;
+  case stringValue:
+    // allocated_ == false, so this is safe.
+    value_.string_ = const_cast<char*>(static_cast<char const*>(emptyString));
+    break;
+  case arrayValue:
+  case objectValue:
+    value_.map_ = new ObjectValues();
+    break;
+  case booleanValue:
+    value_.bool_ = false;
+    break;
+  default:
+    JSON_ASSERT_UNREACHABLE;
+  }
+}
+
+Value::Value(Int value) {
+  initBasic(intValue);
+  value_.int_ = value;
+}
+
+Value::Value(UInt value) {
+  initBasic(uintValue);
+  value_.uint_ = value;
+}
+#if defined(JSON_HAS_INT64)
+Value::Value(Int64 value) {
+  initBasic(intValue);
+  value_.int_ = value;
+}
+Value::Value(UInt64 value) {
+  initBasic(uintValue);
+  value_.uint_ = value;
+}
+#endif // defined(JSON_HAS_INT64)
+
+Value::Value(double value) {
+  initBasic(realValue);
+  value_.real_ = value;
+}
+
+Value::Value(const char* value) {
+  initBasic(stringValue, true);
+  JSON_ASSERT_MESSAGE(value != NULL, "Null Value Passed to Value Constructor");
+  value_.string_ = duplicateAndPrefixStringValue(value, static_cast<unsigned>(strlen(value)));
+}
+
+Value::Value(const char* beginValue, const char* endValue) {
+  initBasic(stringValue, true);
+  value_.string_ =
+      duplicateAndPrefixStringValue(beginValue, static_cast<unsigned>(endValue - beginValue));
+}
+
+Value::Value(const JSONCPP_STRING& value) {
+  initBasic(stringValue, true);
+  value_.string_ =
+      duplicateAndPrefixStringValue(value.data(), static_cast<unsigned>(value.length()));
+}
+
+Value::Value(const StaticString& value) {
+  initBasic(stringValue);
+  value_.string_ = const_cast<char*>(value.c_str());
+}
+
+#ifdef JSON_USE_CPPTL
+Value::Value(const CppTL::ConstString& value) {
+  initBasic(stringValue, true);
+  value_.string_ = duplicateAndPrefixStringValue(value, static_cast<unsigned>(value.length()));
+}
+#endif
+
+Value::Value(bool value) {
+  initBasic(booleanValue);
+  value_.bool_ = value;
+}
+
+Value::Value(Value const& other)
+    : type_(other.type_), allocated_(false)
+      ,
+      comments_(0), start_(other.start_), limit_(other.limit_)
+{
+  switch (type_) {
+  case nullValue:
+  case intValue:
+  case uintValue:
+  case realValue:
+  case booleanValue:
+    value_ = other.value_;
+    break;
+  case stringValue:
+    if (other.value_.string_ && other.allocated_) {
+      unsigned len;
+      char const* str;
+      decodePrefixedString(other.allocated_, other.value_.string_,
+          &len, &str);
+      value_.string_ = duplicateAndPrefixStringValue(str, len);
+      allocated_ = true;
+    } else {
+      value_.string_ = other.value_.string_;
+      allocated_ = false;
+    }
+    break;
+  case arrayValue:
+  case objectValue:
+    value_.map_ = new ObjectValues(*other.value_.map_);
+    break;
+  default:
+    JSON_ASSERT_UNREACHABLE;
+  }
+  if (other.comments_) {
+    comments_ = new CommentInfo[numberOfCommentPlacement];
+    for (int comment = 0; comment < numberOfCommentPlacement; ++comment) {
+      const CommentInfo& otherComment = other.comments_[comment];
+      if (otherComment.comment_)
+        comments_[comment].setComment(
+            otherComment.comment_, strlen(otherComment.comment_));
+    }
+  }
+}
+
+#if JSON_HAS_RVALUE_REFERENCES
+// Move constructor
+Value::Value(Value&& other) {
+  initBasic(nullValue);
+  swap(other);
+}
+#endif
+
+Value::~Value() {
+  switch (type_) {
+  case nullValue:
+  case intValue:
+  case uintValue:
+  case realValue:
+  case booleanValue:
+    break;
+  case stringValue:
+    if (allocated_)
+      releasePrefixedStringValue(value_.string_);
+    break;
+  case arrayValue:
+  case objectValue:
+    delete value_.map_;
+    break;
+  default:
+    JSON_ASSERT_UNREACHABLE;
+  }
+
+  delete[] comments_;
+
+  value_.uint_ = 0;
+}
+
+Value& Value::operator=(Value other) {
+  swap(other);
+  return *this;
+}
+
+void Value::swapPayload(Value& other) {
+  ValueType temp = type_;
+  type_ = other.type_;
+  other.type_ = temp;
+  std::swap(value_, other.value_);
+  int temp2 = allocated_;
+  allocated_ = other.allocated_;
+  other.allocated_ = temp2 & 0x1;
+}
+
+void Value::copyPayload(const Value& other) {
+  type_ = other.type_;
+  value_ = other.value_;
+  allocated_ = other.allocated_;
+}
+
+void Value::swap(Value& other) {
+  swapPayload(other);
+  std::swap(comments_, other.comments_);
+  std::swap(start_, other.start_);
+  std::swap(limit_, other.limit_);
+}
+
+void Value::copy(const Value& other) {
+  copyPayload(other);
+  comments_ = other.comments_;
+  start_ = other.start_;
+  limit_ = other.limit_;
+}
+
+ValueType Value::type() const { return type_; }
+
+int Value::compare(const Value& other) const {
+  if (*this < other)
+    return -1;
+  if (*this > other)
+    return 1;
+  return 0;
+}
+
+bool Value::operator<(const Value& other) const {
+  int typeDelta = type_ - other.type_;
+  if (typeDelta)
+    return typeDelta < 0 ? true : false;
+  switch (type_) {
+  case nullValue:
+    return false;
+  case intValue:
+    return value_.int_ < other.value_.int_;
+  case uintValue:
+    return value_.uint_ < other.value_.uint_;
+  case realValue:
+    return value_.real_ < other.value_.real_;
+  case booleanValue:
+    return value_.bool_ < other.value_.bool_;
+  case stringValue:
+  {
+    if ((value_.string_ == 0) || (other.value_.string_ == 0)) {
+      if (other.value_.string_) return true;
+      else return false;
+    }
+    unsigned this_len;
+    unsigned other_len;
+    char const* this_str;
+    char const* other_str;
+    decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
+    decodePrefixedString(other.allocated_, other.value_.string_, &other_len, &other_str);
+    unsigned min_len = std::min<unsigned>(this_len, other_len);
+    JSON_ASSERT(this_str && other_str);
+    int comp = memcmp(this_str, other_str, min_len);
+    if (comp < 0) return true;
+    if (comp > 0) return false;
+    return (this_len < other_len);
+  }
+  case arrayValue:
+  case objectValue: {
+    int delta = int(value_.map_->size() - other.value_.map_->size());
+    if (delta)
+      return delta < 0;
+    return (*value_.map_) < (*other.value_.map_);
+  }
+  default:
+    JSON_ASSERT_UNREACHABLE;
+  }
+  return false; // unreachable
+}
+
+bool Value::operator<=(const Value& other) const { return !(other < *this); }
+
+bool Value::operator>=(const Value& other) const { return !(*this < other); }
+
+bool Value::operator>(const Value& other) const { return other < *this; }
+
+bool Value::operator==(const Value& other) const {
+  // if ( type_ != other.type_ )
+  // GCC 2.95.3 says:
+  // attempt to take address of bit-field structure member `Json::Value::type_'
+  // Beats me, but a temp solves the problem.
+  int temp = other.type_;
+  if (type_ != temp)
+    return false;
+  switch (type_) {
+  case nullValue:
+    return true;
+  case intValue:
+    return value_.int_ == other.value_.int_;
+  case uintValue:
+    return value_.uint_ == other.value_.uint_;
+  case realValue:
+    return value_.real_ == other.value_.real_;
+  case booleanValue:
+    return value_.bool_ == other.value_.bool_;
+  case stringValue:
+  {
+    if ((value_.string_ == 0) || (other.value_.string_ == 0)) {
+      return (value_.string_ == other.value_.string_);
+    }
+    unsigned this_len;
+    unsigned other_len;
+    char const* this_str;
+    char const* other_str;
+    decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
+    decodePrefixedString(other.allocated_, other.value_.string_, &other_len, &other_str);
+    if (this_len != other_len) return false;
+    JSON_ASSERT(this_str && other_str);
+    int comp = memcmp(this_str, other_str, this_len);
+    return comp == 0;
+  }
+  case arrayValue:
+  case objectValue:
+    return value_.map_->size() == other.value_.map_->size() &&
+           (*value_.map_) == (*other.value_.map_);
+  default:
+    JSON_ASSERT_UNREACHABLE;
+  }
+  return false; // unreachable
+}
+
+bool Value::operator!=(const Value& other) const { return !(*this == other); }
+
+const char* Value::asCString() const {
+  JSON_ASSERT_MESSAGE(type_ == stringValue,
+                      "in Json::Value::asCString(): requires stringValue");
+  if (value_.string_ == 0) return 0;
+  unsigned this_len;
+  char const* this_str;
+  decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
+  return this_str;
+}
+
+#if JSONCPP_USING_SECURE_MEMORY
+unsigned Value::getCStringLength() const {
+  JSON_ASSERT_MESSAGE(type_ == stringValue,
+	                  "in Json::Value::asCString(): requires stringValue");
+  if (value_.string_ == 0) return 0;
+  unsigned this_len;
+  char const* this_str;
+  decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
+  return this_len;
+}
+#endif
+
+bool Value::getString(char const** str, char const** cend) const {
+  if (type_ != stringValue) return false;
+  if (value_.string_ == 0) return false;
+  unsigned length;
+  decodePrefixedString(this->allocated_, this->value_.string_, &length, str);
+  *cend = *str + length;
+  return true;
+}
+
+JSONCPP_STRING Value::asString() const {
+  switch (type_) {
+  case nullValue:
+    return "";
+  case stringValue:
+  {
+    if (value_.string_ == 0) return "";
+    unsigned this_len;
+    char const* this_str;
+    decodePrefixedString(this->allocated_, this->value_.string_, &this_len, &this_str);
+    return JSONCPP_STRING(this_str, this_len);
+  }
+  case booleanValue:
+    return value_.bool_ ? "true" : "false";
+  case intValue:
+    return valueToString(value_.int_);
+  case uintValue:
+    return valueToString(value_.uint_);
+  case realValue:
+    return valueToString(value_.real_);
+  default:
+    JSON_FAIL_MESSAGE("Type is not convertible to string");
+  }
+}
+
+#ifdef JSON_USE_CPPTL
+CppTL::ConstString Value::asConstString() const {
+  unsigned len;
+  char const* str;
+  decodePrefixedString(allocated_, value_.string_,
+      &len, &str);
+  return CppTL::ConstString(str, len);
+}
+#endif
+
+Value::Int Value::asInt() const {
+  switch (type_) {
+  case intValue:
+    JSON_ASSERT_MESSAGE(isInt(), "LargestInt out of Int range");
+    return Int(value_.int_);
+  case uintValue:
+    JSON_ASSERT_MESSAGE(isInt(), "LargestUInt out of Int range");
+    return Int(value_.uint_);
+  case realValue:
+    JSON_ASSERT_MESSAGE(InRange(value_.real_, minInt, maxInt),
+                        "double out of Int range");
+    return Int(value_.real_);
+  case nullValue:
+    return 0;
+  case booleanValue:
+    return value_.bool_ ? 1 : 0;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to Int.");
+}
+
+Value::UInt Value::asUInt() const {
+  switch (type_) {
+  case intValue:
+    JSON_ASSERT_MESSAGE(isUInt(), "LargestInt out of UInt range");
+    return UInt(value_.int_);
+  case uintValue:
+    JSON_ASSERT_MESSAGE(isUInt(), "LargestUInt out of UInt range");
+    return UInt(value_.uint_);
+  case realValue:
+    JSON_ASSERT_MESSAGE(InRange(value_.real_, 0, maxUInt),
+                        "double out of UInt range");
+    return UInt(value_.real_);
+  case nullValue:
+    return 0;
+  case booleanValue:
+    return value_.bool_ ? 1 : 0;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to UInt.");
+}
+
+#if defined(JSON_HAS_INT64)
+
+Value::Int64 Value::asInt64() const {
+  switch (type_) {
+  case intValue:
+    return Int64(value_.int_);
+  case uintValue:
+    JSON_ASSERT_MESSAGE(isInt64(), "LargestUInt out of Int64 range");
+    return Int64(value_.uint_);
+  case realValue:
+    JSON_ASSERT_MESSAGE(InRange(value_.real_, minInt64, maxInt64),
+                        "double out of Int64 range");
+    return Int64(value_.real_);
+  case nullValue:
+    return 0;
+  case booleanValue:
+    return value_.bool_ ? 1 : 0;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to Int64.");
+}
+
+Value::UInt64 Value::asUInt64() const {
+  switch (type_) {
+  case intValue:
+    JSON_ASSERT_MESSAGE(isUInt64(), "LargestInt out of UInt64 range");
+    return UInt64(value_.int_);
+  case uintValue:
+    return UInt64(value_.uint_);
+  case realValue:
+    JSON_ASSERT_MESSAGE(InRange(value_.real_, 0, maxUInt64),
+                        "double out of UInt64 range");
+    return UInt64(value_.real_);
+  case nullValue:
+    return 0;
+  case booleanValue:
+    return value_.bool_ ? 1 : 0;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to UInt64.");
+}
+#endif // if defined(JSON_HAS_INT64)
+
+LargestInt Value::asLargestInt() const {
+#if defined(JSON_NO_INT64)
+  return asInt();
+#else
+  return asInt64();
+#endif
+}
+
+LargestUInt Value::asLargestUInt() const {
+#if defined(JSON_NO_INT64)
+  return asUInt();
+#else
+  return asUInt64();
+#endif
+}
+
+double Value::asDouble() const {
+  switch (type_) {
+  case intValue:
+    return static_cast<double>(value_.int_);
+  case uintValue:
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+    return static_cast<double>(value_.uint_);
+#else  // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+    return integerToDouble(value_.uint_);
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+  case realValue:
+    return value_.real_;
+  case nullValue:
+    return 0.0;
+  case booleanValue:
+    return value_.bool_ ? 1.0 : 0.0;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to double.");
+}
+
+float Value::asFloat() const {
+  switch (type_) {
+  case intValue:
+    return static_cast<float>(value_.int_);
+  case uintValue:
+#if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+    return static_cast<float>(value_.uint_);
+#else  // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+    // This can fail (silently?) if the value is bigger than MAX_FLOAT.
+    return static_cast<float>(integerToDouble(value_.uint_));
+#endif // if !defined(JSON_USE_INT64_DOUBLE_CONVERSION)
+  case realValue:
+    return static_cast<float>(value_.real_);
+  case nullValue:
+    return 0.0;
+  case booleanValue:
+    return value_.bool_ ? 1.0f : 0.0f;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to float.");
+}
+
+bool Value::asBool() const {
+  switch (type_) {
+  case booleanValue:
+    return value_.bool_;
+  case nullValue:
+    return false;
+  case intValue:
+    return value_.int_ ? true : false;
+  case uintValue:
+    return value_.uint_ ? true : false;
+  case realValue:
+    // This is kind of strange. Not recommended.
+    return (value_.real_ != 0.0) ? true : false;
+  default:
+    break;
+  }
+  JSON_FAIL_MESSAGE("Value is not convertible to bool.");
+}
+
+bool Value::isConvertibleTo(ValueType other) const {
+  switch (other) {
+  case nullValue:
+    return (isNumeric() && asDouble() == 0.0) ||
+           (type_ == booleanValue && value_.bool_ == false) ||
+           (type_ == stringValue && asString().empty()) ||
+           (type_ == arrayValue && value_.map_->size() == 0) ||
+           (type_ == objectValue && value_.map_->size() == 0) ||
+           type_ == nullValue;
+  case intValue:
+    return isInt() ||
+           (type_ == realValue && InRange(value_.real_, minInt, maxInt)) ||
+           type_ == booleanValue || type_ == nullValue;
+  case uintValue:
+    return isUInt() ||
+           (type_ == realValue && InRange(value_.real_, 0, maxUInt)) ||
+           type_ == booleanValue || type_ == nullValue;
+  case realValue:
+    return isNumeric() || type_ == booleanValue || type_ == nullValue;
+  case booleanValue:
+    return isNumeric() || type_ == booleanValue || type_ == nullValue;
+  case stringValue:
+    return isNumeric() || type_ == booleanValue || type_ == stringValue ||
+           type_ == nullValue;
+  case arrayValue:
+    return type_ == arrayValue || type_ == nullValue;
+  case objectValue:
+    return type_ == objectValue || type_ == nullValue;
+  }
+  JSON_ASSERT_UNREACHABLE;
+  return false;
+}
+
+/// Number of values in array or object
+ArrayIndex Value::size() const {
+  switch (type_) {
+  case nullValue:
+  case intValue:
+  case uintValue:
+  case realValue:
+  case booleanValue:
+  case stringValue:
+    return 0;
+  case arrayValue: // size of the array is highest index + 1
+    if (!value_.map_->empty()) {
+      ObjectValues::const_iterator itLast = value_.map_->end();
+      --itLast;
+      return (*itLast).first.index() + 1;
+    }
+    return 0;
+  case objectValue:
+    return ArrayIndex(value_.map_->size());
+  }
+  JSON_ASSERT_UNREACHABLE;
+  return 0; // unreachable;
+}
+
+bool Value::empty() const {
+  if (isNull() || isArray() || isObject())
+    return size() == 0u;
+  else
+    return false;
+}
+
+Value::operator bool() const { return ! isNull(); }
+
+void Value::clear() {
+  JSON_ASSERT_MESSAGE(type_ == nullValue || type_ == arrayValue ||
+                          type_ == objectValue,
+                      "in Json::Value::clear(): requires complex value");
+  start_ = 0;
+  limit_ = 0;
+  switch (type_) {
+  case arrayValue:
+  case objectValue:
+    value_.map_->clear();
+    break;
+  default:
+    break;
+  }
+}
+
+void Value::resize(ArrayIndex newSize) {
+  JSON_ASSERT_MESSAGE(type_ == nullValue || type_ == arrayValue,
+                      "in Json::Value::resize(): requires arrayValue");
+  if (type_ == nullValue)
+    *this = Value(arrayValue);
+  ArrayIndex oldSize = size();
+  if (newSize == 0)
+    clear();
+  else if (newSize > oldSize)
+    (*this)[newSize - 1];
+  else {
+    for (ArrayIndex index = newSize; index < oldSize; ++index) {
+      value_.map_->erase(index);
+    }
+    JSON_ASSERT(size() == newSize);
+  }
+}
+
+Value& Value::operator[](ArrayIndex index) {
+  JSON_ASSERT_MESSAGE(
+      type_ == nullValue || type_ == arrayValue,
+      "in Json::Value::operator[](ArrayIndex): requires arrayValue");
+  if (type_ == nullValue)
+    *this = Value(arrayValue);
+  CZString key(index);
+  ObjectValues::iterator it = value_.map_->lower_bound(key);
+  if (it != value_.map_->end() && (*it).first == key)
+    return (*it).second;
+
+  ObjectValues::value_type defaultValue(key, nullSingleton());
+  it = value_.map_->insert(it, defaultValue);
+  return (*it).second;
+}
+
+Value& Value::operator[](int index) {
+  JSON_ASSERT_MESSAGE(
+      index >= 0,
+      "in Json::Value::operator[](int index): index cannot be negative");
+  return (*this)[ArrayIndex(index)];
+}
+
+const Value& Value::operator[](ArrayIndex index) const {
+  JSON_ASSERT_MESSAGE(
+      type_ == nullValue || type_ == arrayValue,
+      "in Json::Value::operator[](ArrayIndex)const: requires arrayValue");
+  if (type_ == nullValue)
+    return nullSingleton();
+  CZString key(index);
+  ObjectValues::const_iterator it = value_.map_->find(key);
+  if (it == value_.map_->end())
+    return nullSingleton();
+  return (*it).second;
+}
+
+const Value& Value::operator[](int index) const {
+  JSON_ASSERT_MESSAGE(
+      index >= 0,
+      "in Json::Value::operator[](int index) const: index cannot be negative");
+  return (*this)[ArrayIndex(index)];
+}
+
+void Value::initBasic(ValueType vtype, bool allocated) {
+  type_ = vtype;
+  allocated_ = allocated;
+  comments_ = 0;
+  start_ = 0;
+  limit_ = 0;
+}
+
+// Access an object value by name, create a null member if it does not exist.
+// @pre Type of '*this' is object or null.
+// @param key is null-terminated.
+Value& Value::resolveReference(const char* key) {
+  JSON_ASSERT_MESSAGE(
+      type_ == nullValue || type_ == objectValue,
+      "in Json::Value::resolveReference(): requires objectValue");
+  if (type_ == nullValue)
+    *this = Value(objectValue);
+  CZString actualKey(
+      key, static_cast<unsigned>(strlen(key)), CZString::noDuplication); // NOTE!
+  ObjectValues::iterator it = value_.map_->lower_bound(actualKey);
+  if (it != value_.map_->end() && (*it).first == actualKey)
+    return (*it).second;
+
+  ObjectValues::value_type defaultValue(actualKey, nullSingleton());
+  it = value_.map_->insert(it, defaultValue);
+  Value& value = (*it).second;
+  return value;
+}
+
+// @param key is not null-terminated.
+Value& Value::resolveReference(char const* key, char const* cend)
+{
+  JSON_ASSERT_MESSAGE(
+      type_ == nullValue || type_ == objectValue,
+      "in Json::Value::resolveReference(key, end): requires objectValue");
+  if (type_ == nullValue)
+    *this = Value(objectValue);
+  CZString actualKey(
+      key, static_cast<unsigned>(cend-key), CZString::duplicateOnCopy);
+  ObjectValues::iterator it = value_.map_->lower_bound(actualKey);
+  if (it != value_.map_->end() && (*it).first == actualKey)
+    return (*it).second;
+
+  ObjectValues::value_type defaultValue(actualKey, nullSingleton());
+  it = value_.map_->insert(it, defaultValue);
+  Value& value = (*it).second;
+  return value;
+}
+
+Value Value::get(ArrayIndex index, const Value& defaultValue) const {
+  const Value* value = &((*this)[index]);
+  return value == &nullSingleton() ? defaultValue : *value;
+}
+
+bool Value::isValidIndex(ArrayIndex index) const { return index < size(); }
+
+Value const* Value::find(char const* key, char const* cend) const
+{
+  JSON_ASSERT_MESSAGE(
+      type_ == nullValue || type_ == objectValue,
+      "in Json::Value::find(key, end, found): requires objectValue or nullValue");
+  if (type_ == nullValue) return NULL;
+  CZString actualKey(key, static_cast<unsigned>(cend-key), CZString::noDuplication);
+  ObjectValues::const_iterator it = value_.map_->find(actualKey);
+  if (it == value_.map_->end()) return NULL;
+  return &(*it).second;
+}
+const Value& Value::operator[](const char* key) const
+{
+  Value const* found = find(key, key + strlen(key));
+  if (!found) return nullSingleton();
+  return *found;
+}
+Value const& Value::operator[](JSONCPP_STRING const& key) const
+{
+  Value const* found = find(key.data(), key.data() + key.length());
+  if (!found) return nullSingleton();
+  return *found;
+}
+
+Value& Value::operator[](const char* key) {
+  return resolveReference(key, key + strlen(key));
+}
+
+Value& Value::operator[](const JSONCPP_STRING& key) {
+  return resolveReference(key.data(), key.data() + key.length());
+}
+
+Value& Value::operator[](const StaticString& key) {
+  return resolveReference(key.c_str());
+}
+
+#ifdef JSON_USE_CPPTL
+Value& Value::operator[](const CppTL::ConstString& key) {
+  return resolveReference(key.c_str(), key.end_c_str());
+}
+Value const& Value::operator[](CppTL::ConstString const& key) const
+{
+  Value const* found = find(key.c_str(), key.end_c_str());
+  if (!found) return nullSingleton();
+  return *found;
+}
+#endif
+
+Value& Value::append(const Value& value) { return (*this)[size()] = value; }
+
+#if JSON_HAS_RVALUE_REFERENCES
+  Value& Value::append(Value&& value) { return (*this)[size()] = std::move(value); }
+#endif
+
+Value Value::get(char const* key, char const* cend, Value const& defaultValue) const
+{
+  Value const* found = find(key, cend);
+  return !found ? defaultValue : *found;
+}
+Value Value::get(char const* key, Value const& defaultValue) const
+{
+  return get(key, key + strlen(key), defaultValue);
+}
+Value Value::get(JSONCPP_STRING const& key, Value const& defaultValue) const
+{
+  return get(key.data(), key.data() + key.length(), defaultValue);
+}
+
+
+bool Value::removeMember(const char* key, const char* cend, Value* removed)
+{
+  if (type_ != objectValue) {
+    return false;
+  }
+  CZString actualKey(key, static_cast<unsigned>(cend-key), CZString::noDuplication);
+  ObjectValues::iterator it = value_.map_->find(actualKey);
+  if (it == value_.map_->end())
+    return false;
+  *removed = it->second;
+  value_.map_->erase(it);
+  return true;
+}
+bool Value::removeMember(const char* key, Value* removed)
+{
+  return removeMember(key, key + strlen(key), removed);
+}
+bool Value::removeMember(JSONCPP_STRING const& key, Value* removed)
+{
+  return removeMember(key.data(), key.data() + key.length(), removed);
+}
+void Value::removeMember(const char* key)
+{
+  JSON_ASSERT_MESSAGE(type_ == nullValue || type_ == objectValue,
+                      "in Json::Value::removeMember(): requires objectValue");
+  if (type_ == nullValue)
+    return;
+
+  CZString actualKey(key, unsigned(strlen(key)), CZString::noDuplication);
+  value_.map_->erase(actualKey);
+}
+void Value::removeMember(const JSONCPP_STRING& key)
+{
+  removeMember(key.c_str());
+}
+
+bool Value::removeIndex(ArrayIndex index, Value* removed) {
+  if (type_ != arrayValue) {
+    return false;
+  }
+  CZString key(index);
+  ObjectValues::iterator it = value_.map_->find(key);
+  if (it == value_.map_->end()) {
+    return false;
+  }
+  *removed = it->second;
+  ArrayIndex oldSize = size();
+  // shift left all items left, into the place of the "removed"
+  for (ArrayIndex i = index; i < (oldSize - 1); ++i){
+    CZString keey(i);
+    (*value_.map_)[keey] = (*this)[i + 1];
+  }
+  // erase the last one ("leftover")
+  CZString keyLast(oldSize - 1);
+  ObjectValues::iterator itLast = value_.map_->find(keyLast);
+  value_.map_->erase(itLast);
+  return true;
+}
+
+#ifdef JSON_USE_CPPTL
+Value Value::get(const CppTL::ConstString& key,
+                 const Value& defaultValue) const {
+  return get(key.c_str(), key.end_c_str(), defaultValue);
+}
+#endif
+
+bool Value::isMember(char const* key, char const* cend) const
+{
+  Value const* value = find(key, cend);
+  return NULL != value;
+}
+bool Value::isMember(char const* key) const
+{
+  return isMember(key, key + strlen(key));
+}
+bool Value::isMember(JSONCPP_STRING const& key) const
+{
+  return isMember(key.data(), key.data() + key.length());
+}
+
+#ifdef JSON_USE_CPPTL
+bool Value::isMember(const CppTL::ConstString& key) const {
+  return isMember(key.c_str(), key.end_c_str());
+}
+#endif
+
+Value::Members Value::getMemberNames() const {
+  JSON_ASSERT_MESSAGE(
+      type_ == nullValue || type_ == objectValue,
+      "in Json::Value::getMemberNames(), value must be objectValue");
+  if (type_ == nullValue)
+    return Value::Members();
+  Members members;
+  members.reserve(value_.map_->size());
+  ObjectValues::const_iterator it = value_.map_->begin();
+  ObjectValues::const_iterator itEnd = value_.map_->end();
+  for (; it != itEnd; ++it) {
+    members.push_back(JSONCPP_STRING((*it).first.data(),
+                                  (*it).first.length()));
+  }
+  return members;
+}
+//
+//# ifdef JSON_USE_CPPTL
+// EnumMemberNames
+// Value::enumMemberNames() const
+//{
+//   if ( type_ == objectValue )
+//   {
+//      return CppTL::Enum::any(  CppTL::Enum::transform(
+//         CppTL::Enum::keys( *(value_.map_), CppTL::Type<const CZString &>() ),
+//         MemberNamesTransform() ) );
+//   }
+//   return EnumMemberNames();
+//}
+//
+//
+// EnumValues
+// Value::enumValues() const
+//{
+//   if ( type_ == objectValue  ||  type_ == arrayValue )
+//      return CppTL::Enum::anyValues( *(value_.map_),
+//                                     CppTL::Type<const Value &>() );
+//   return EnumValues();
+//}
+//
+//# endif
+
+static bool IsIntegral(double d) {
+  double integral_part;
+  return modf(d, &integral_part) == 0.0;
+}
+
+bool Value::isNull() const { return type_ == nullValue; }
+
+bool Value::isBool() const { return type_ == booleanValue; }
+
+bool Value::isInt() const {
+  switch (type_) {
+  case intValue:
+#if defined(JSON_HAS_INT64)
+    return value_.int_ >= minInt && value_.int_ <= maxInt;
+#else
+    return true;
+#endif
+  case uintValue:
+    return value_.uint_ <= UInt(maxInt);
+  case realValue:
+    return value_.real_ >= minInt && value_.real_ <= maxInt &&
+           IsIntegral(value_.real_);
+  default:
+    break;
+  }
+  return false;
+}
+
+bool Value::isUInt() const {
+  switch (type_) {
+  case intValue:
+#if defined(JSON_HAS_INT64)
+    return value_.int_ >= 0 && LargestUInt(value_.int_) <= LargestUInt(maxUInt);
+#else
+    return value_.int_ >= 0;
+#endif
+  case uintValue:
+#if defined(JSON_HAS_INT64)
+    return value_.uint_ <= maxUInt;
+#else
+    return true;
+#endif
+  case realValue:
+    return value_.real_ >= 0 && value_.real_ <= maxUInt &&
+           IsIntegral(value_.real_);
+  default:
+    break;
+  }
+  return false;
+}
+
+bool Value::isInt64() const {
+#if defined(JSON_HAS_INT64)
+  switch (type_) {
+  case intValue:
+    return true;
+  case uintValue:
+    return value_.uint_ <= UInt64(maxInt64);
+  case realValue:
+    // Note that maxInt64 (= 2^63 - 1) is not exactly representable as a
+    // double, so double(maxInt64) will be rounded up to 2^63. Therefore we
+    // require the value to be strictly less than the limit.
+    return value_.real_ >= double(minInt64) &&
+           value_.real_ < double(maxInt64) && IsIntegral(value_.real_);
+  default:
+    break;
+  }
+#endif // JSON_HAS_INT64
+  return false;
+}
+
+bool Value::isUInt64() const {
+#if defined(JSON_HAS_INT64)
+  switch (type_) {
+  case intValue:
+    return value_.int_ >= 0;
+  case uintValue:
+    return true;
+  case realValue:
+    // Note that maxUInt64 (= 2^64 - 1) is not exactly representable as a
+    // double, so double(maxUInt64) will be rounded up to 2^64. Therefore we
+    // require the value to be strictly less than the limit.
+    return value_.real_ >= 0 && value_.real_ < maxUInt64AsDouble &&
+           IsIntegral(value_.real_);
+  default:
+    break;
+  }
+#endif // JSON_HAS_INT64
+  return false;
+}
+
+bool Value::isIntegral() const {
+  switch (type_) {
+    case intValue:
+    case uintValue:
+      return true;
+    case realValue:
+#if defined(JSON_HAS_INT64)
+      // Note that maxUInt64 (= 2^64 - 1) is not exactly representable as a
+      // double, so double(maxUInt64) will be rounded up to 2^64. Therefore we
+      // require the value to be strictly less than the limit.
+      return value_.real_ >= double(minInt64) && value_.real_ < maxUInt64AsDouble && IsIntegral(value_.real_);
+#else
+      return value_.real_ >= minInt && value_.real_ <= maxUInt && IsIntegral(value_.real_);
+#endif // JSON_HAS_INT64
+    default:
+      break;
+  }
+  return false;
+}
+
+bool Value::isDouble() const { return type_ == intValue || type_ == uintValue || type_ == realValue; }
+
+bool Value::isNumeric() const { return isDouble(); }
+
+bool Value::isString() const { return type_ == stringValue; }
+
+bool Value::isArray() const { return type_ == arrayValue; }
+
+bool Value::isObject() const { return type_ == objectValue; }
+
+void Value::setComment(const char* comment, size_t len, CommentPlacement placement) {
+  if (!comments_)
+    comments_ = new CommentInfo[numberOfCommentPlacement];
+  if ((len > 0) && (comment[len-1] == '\n')) {
+    // Always discard trailing newline, to aid indentation.
+    len -= 1;
+  }
+  comments_[placement].setComment(comment, len);
+}
+
+void Value::setComment(const char* comment, CommentPlacement placement) {
+  setComment(comment, strlen(comment), placement);
+}
+
+void Value::setComment(const JSONCPP_STRING& comment, CommentPlacement placement) {
+  setComment(comment.c_str(), comment.length(), placement);
+}
+
+bool Value::hasComment(CommentPlacement placement) const {
+  return comments_ != 0 && comments_[placement].comment_ != 0;
+}
+
+JSONCPP_STRING Value::getComment(CommentPlacement placement) const {
+  if (hasComment(placement))
+    return comments_[placement].comment_;
+  return "";
+}
+
+void Value::setOffsetStart(ptrdiff_t start) { start_ = start; }
+
+void Value::setOffsetLimit(ptrdiff_t limit) { limit_ = limit; }
+
+ptrdiff_t Value::getOffsetStart() const { return start_; }
+
+ptrdiff_t Value::getOffsetLimit() const { return limit_; }
+
+JSONCPP_STRING Value::toStyledString() const {
+  StreamWriterBuilder builder;
+
+  JSONCPP_STRING out = this->hasComment(commentBefore) ? "\n" : "";
+  out += Json::writeString(builder, *this);
+  out += "\n";
+
+  return out;
+}
+
+Value::const_iterator Value::begin() const {
+  switch (type_) {
+  case arrayValue:
+  case objectValue:
+    if (value_.map_)
+      return const_iterator(value_.map_->begin());
+    break;
+  default:
+    break;
+  }
+  return const_iterator();
+}
+
+Value::const_iterator Value::end() const {
+  switch (type_) {
+  case arrayValue:
+  case objectValue:
+    if (value_.map_)
+      return const_iterator(value_.map_->end());
+    break;
+  default:
+    break;
+  }
+  return const_iterator();
+}
+
+Value::iterator Value::begin() {
+  switch (type_) {
+  case arrayValue:
+  case objectValue:
+    if (value_.map_)
+      return iterator(value_.map_->begin());
+    break;
+  default:
+    break;
+  }
+  return iterator();
+}
+
+Value::iterator Value::end() {
+  switch (type_) {
+  case arrayValue:
+  case objectValue:
+    if (value_.map_)
+      return iterator(value_.map_->end());
+    break;
+  default:
+    break;
+  }
+  return iterator();
+}
+
+// class PathArgument
+// //////////////////////////////////////////////////////////////////
+
+PathArgument::PathArgument() : key_(), index_(), kind_(kindNone) {}
+
+PathArgument::PathArgument(ArrayIndex index)
+    : key_(), index_(index), kind_(kindIndex) {}
+
+PathArgument::PathArgument(const char* key)
+    : key_(key), index_(), kind_(kindKey) {}
+
+PathArgument::PathArgument(const JSONCPP_STRING& key)
+    : key_(key.c_str()), index_(), kind_(kindKey) {}
+
+// class Path
+// //////////////////////////////////////////////////////////////////
+
+Path::Path(const JSONCPP_STRING& path,
+           const PathArgument& a1,
+           const PathArgument& a2,
+           const PathArgument& a3,
+           const PathArgument& a4,
+           const PathArgument& a5) {
+  InArgs in;
+  in.reserve(5);
+  in.push_back(&a1);
+  in.push_back(&a2);
+  in.push_back(&a3);
+  in.push_back(&a4);
+  in.push_back(&a5);
+  makePath(path, in);
+}
+
+void Path::makePath(const JSONCPP_STRING& path, const InArgs& in) {
+  const char* current = path.c_str();
+  const char* end = current + path.length();
+  InArgs::const_iterator itInArg = in.begin();
+  while (current != end) {
+    if (*current == '[') {
+      ++current;
+      if (*current == '%')
+        addPathInArg(path, in, itInArg, PathArgument::kindIndex);
+      else {
+        ArrayIndex index = 0;
+        for (; current != end && *current >= '0' && *current <= '9'; ++current)
+          index = index * 10 + ArrayIndex(*current - '0');
+        args_.push_back(index);
+      }
+      if (current == end || *++current != ']')
+        invalidPath(path, int(current - path.c_str()));
+    } else if (*current == '%') {
+      addPathInArg(path, in, itInArg, PathArgument::kindKey);
+      ++current;
+    } else if (*current == '.' || *current == ']') {
+      ++current;
+    } else {
+      const char* beginName = current;
+      while (current != end && !strchr("[.", *current))
+        ++current;
+      args_.push_back(JSONCPP_STRING(beginName, current));
+    }
+  }
+}
+
+void Path::addPathInArg(const JSONCPP_STRING& /*path*/,
+                        const InArgs& in,
+                        InArgs::const_iterator& itInArg,
+                        PathArgument::Kind kind) {
+  if (itInArg == in.end()) {
+    // Error: missing argument %d
+  } else if ((*itInArg)->kind_ != kind) {
+    // Error: bad argument type
+  } else {
+    args_.push_back(**itInArg++);
+  }
+}
+
+void Path::invalidPath(const JSONCPP_STRING& /*path*/, int /*location*/) {
+  // Error: invalid path.
+}
+
+const Value& Path::resolve(const Value& root) const {
+  const Value* node = &root;
+  for (Args::const_iterator it = args_.begin(); it != args_.end(); ++it) {
+    const PathArgument& arg = *it;
+    if (arg.kind_ == PathArgument::kindIndex) {
+      if (!node->isArray() || !node->isValidIndex(arg.index_)) {
+        // Error: unable to resolve path (array value expected at position...
+        return Value::null;
+      }
+      node = &((*node)[arg.index_]);
+    } else if (arg.kind_ == PathArgument::kindKey) {
+      if (!node->isObject()) {
+        // Error: unable to resolve path (object value expected at position...)
+        return Value::null;
+      }
+      node = &((*node)[arg.key_]);
+      if (node == &Value::nullSingleton()) {
+        // Error: unable to resolve path (object has no member named '' at
+        // position...)
+        return Value::null;
+      }
+    }
+  }
+  return *node;
+}
+
+Value Path::resolve(const Value& root, const Value& defaultValue) const {
+  const Value* node = &root;
+  for (Args::const_iterator it = args_.begin(); it != args_.end(); ++it) {
+    const PathArgument& arg = *it;
+    if (arg.kind_ == PathArgument::kindIndex) {
+      if (!node->isArray() || !node->isValidIndex(arg.index_))
+        return defaultValue;
+      node = &((*node)[arg.index_]);
+    } else if (arg.kind_ == PathArgument::kindKey) {
+      if (!node->isObject())
+        return defaultValue;
+      node = &((*node)[arg.key_]);
+      if (node == &Value::nullSingleton())
+        return defaultValue;
+    }
+  }
+  return *node;
+}
+
+Value& Path::make(Value& root) const {
+  Value* node = &root;
+  for (Args::const_iterator it = args_.begin(); it != args_.end(); ++it) {
+    const PathArgument& arg = *it;
+    if (arg.kind_ == PathArgument::kindIndex) {
+      if (!node->isArray()) {
+        // Error: node is not an array at position ...
+      }
+      node = &((*node)[arg.index_]);
+    } else if (arg.kind_ == PathArgument::kindKey) {
+      if (!node->isObject()) {
+        // Error: node is not an object at position...
+      }
+      node = &((*node)[arg.key_]);
+    }
+  }
+  return *node;
+}
+
+} // namespace Json
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/json_valueiterator.inl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/json_valueiterator.inl	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,167 @@
+// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+// included by json_value.cpp
+
+namespace Json {
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class ValueIteratorBase
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+ValueIteratorBase::ValueIteratorBase()
+    : current_(), isNull_(true) {
+}
+
+ValueIteratorBase::ValueIteratorBase(
+    const Value::ObjectValues::iterator& current)
+    : current_(current), isNull_(false) {}
+
+Value& ValueIteratorBase::deref() const {
+  return current_->second;
+}
+
+void ValueIteratorBase::increment() {
+  ++current_;
+}
+
+void ValueIteratorBase::decrement() {
+  --current_;
+}
+
+ValueIteratorBase::difference_type
+ValueIteratorBase::computeDistance(const SelfType& other) const {
+#ifdef JSON_USE_CPPTL_SMALLMAP
+  return other.current_ - current_;
+#else
+  // Iterator for null value are initialized using the default
+  // constructor, which initialize current_ to the default
+  // std::map::iterator. As begin() and end() are two instance
+  // of the default std::map::iterator, they can not be compared.
+  // To allow this, we handle this comparison specifically.
+  if (isNull_ && other.isNull_) {
+    return 0;
+  }
+
+  // Usage of std::distance is not portable (does not compile with Sun Studio 12
+  // RogueWave STL,
+  // which is the one used by default).
+  // Using a portable hand-made version for non random iterator instead:
+  //   return difference_type( std::distance( current_, other.current_ ) );
+  difference_type myDistance = 0;
+  for (Value::ObjectValues::iterator it = current_; it != other.current_;
+       ++it) {
+    ++myDistance;
+  }
+  return myDistance;
+#endif
+}
+
+bool ValueIteratorBase::isEqual(const SelfType& other) const {
+  if (isNull_) {
+    return other.isNull_;
+  }
+  return current_ == other.current_;
+}
+
+void ValueIteratorBase::copy(const SelfType& other) {
+  current_ = other.current_;
+  isNull_ = other.isNull_;
+}
+
+Value ValueIteratorBase::key() const {
+  const Value::CZString czstring = (*current_).first;
+  if (czstring.data()) {
+    if (czstring.isStaticString())
+      return Value(StaticString(czstring.data()));
+    return Value(czstring.data(), czstring.data() + czstring.length());
+  }
+  return Value(czstring.index());
+}
+
+UInt ValueIteratorBase::index() const {
+  const Value::CZString czstring = (*current_).first;
+  if (!czstring.data())
+    return czstring.index();
+  return Value::UInt(-1);
+}
+
+JSONCPP_STRING ValueIteratorBase::name() const {
+  char const* keey;
+  char const* end;
+  keey = memberName(&end);
+  if (!keey) return JSONCPP_STRING();
+  return JSONCPP_STRING(keey, end);
+}
+
+char const* ValueIteratorBase::memberName() const {
+  const char* cname = (*current_).first.data();
+  return cname ? cname : "";
+}
+
+char const* ValueIteratorBase::memberName(char const** end) const {
+  const char* cname = (*current_).first.data();
+  if (!cname) {
+    *end = NULL;
+    return NULL;
+  }
+  *end = cname + (*current_).first.length();
+  return cname;
+}
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class ValueConstIterator
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+ValueConstIterator::ValueConstIterator() {}
+
+ValueConstIterator::ValueConstIterator(
+    const Value::ObjectValues::iterator& current)
+    : ValueIteratorBase(current) {}
+
+ValueConstIterator::ValueConstIterator(ValueIterator const& other)
+    : ValueIteratorBase(other) {}
+
+ValueConstIterator& ValueConstIterator::
+operator=(const ValueIteratorBase& other) {
+  copy(other);
+  return *this;
+}
+
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// class ValueIterator
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+// //////////////////////////////////////////////////////////////////
+
+ValueIterator::ValueIterator() {}
+
+ValueIterator::ValueIterator(const Value::ObjectValues::iterator& current)
+    : ValueIteratorBase(current) {}
+
+ValueIterator::ValueIterator(const ValueConstIterator& other)
+    : ValueIteratorBase(other) {
+  throwRuntimeError("ConstIterator to Iterator should never be allowed.");
+}
+
+ValueIterator::ValueIterator(const ValueIterator& other)
+    : ValueIteratorBase(other) {}
+
+ValueIterator& ValueIterator::operator=(const SelfType& other) {
+  copy(other);
+  return *this;
+}
+
+} // namespace Json
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/json_writer.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/json_writer.cpp	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,1233 @@
+// Copyright 2011 Baptiste Lepilleur and The JsonCpp Authors
+// Distributed under MIT license, or public domain if desired and
+// recognized in your jurisdiction.
+// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
+
+#if !defined(JSON_IS_AMALGAMATION)
+#include <json/writer.h>
+#include "json_tool.h"
+#endif // if !defined(JSON_IS_AMALGAMATION)
+#include <iomanip>
+#include <memory>
+#include <sstream>
+#include <utility>
+#include <set>
+#include <cassert>
+#include <cstring>
+#include <cstdio>
+
+#if defined(_MSC_VER) && _MSC_VER >= 1200 && _MSC_VER < 1800 // Between VC++ 6.0 and VC++ 11.0
+#include <float.h>
+#define isfinite _finite
+#elif defined(__sun) && defined(__SVR4) //Solaris
+#if !defined(isfinite)
+#include <ieeefp.h>
+#define isfinite finite
+#endif
+#elif defined(_AIX)
+#if !defined(isfinite)
+#include <math.h>
+#define isfinite finite
+#endif
+#elif defined(__hpux)
+#if !defined(isfinite)
+#if defined(__ia64) && !defined(finite)
+#define isfinite(x) ((sizeof(x) == sizeof(float) ? \
+                     _Isfinitef(x) : _IsFinite(x)))
+#else
+#include <math.h>
+#define isfinite finite
+#endif
+#endif
+#else
+#include <cmath>
+#if !(defined(__QNXNTO__)) // QNX already defines isfinite
+#define isfinite std::isfinite
+#endif
+#endif
+
+#if defined(_MSC_VER)
+#if !defined(WINCE) && defined(__STDC_SECURE_LIB__) && _MSC_VER >= 1500 // VC++ 9.0 and above
+#define snprintf sprintf_s
+#elif _MSC_VER >= 1900 // VC++ 14.0 and above
+#define snprintf std::snprintf
+#else
+#define snprintf _snprintf
+#endif
+#elif defined(__ANDROID__) || defined(__QNXNTO__)
+#define snprintf snprintf
+#elif __cplusplus >= 201103L
+#if !defined(__MINGW32__) && !defined(__CYGWIN__)
+#define snprintf std::snprintf
+#endif
+#endif
+
+#if defined(__BORLANDC__)  
+#include <float.h>
+#define isfinite _finite
+#define snprintf _snprintf
+#endif
+
+#if defined(_MSC_VER) && _MSC_VER >= 1400 // VC++ 8.0
+// Disable warning about strdup being deprecated.
+#pragma warning(disable : 4996)
+#endif
+using namespace std;
+namespace Json {
+
+#if __cplusplus >= 201103L || (defined(_CPPLIB_VER) && _CPPLIB_VER >= 520)
+typedef std::unique_ptr<StreamWriter> StreamWriterPtr;
+#else
+typedef std::auto_ptr<StreamWriter>   StreamWriterPtr;
+#endif
+
+JSONCPP_STRING valueToString(LargestInt value) {
+  UIntToStringBuffer buffer;
+  char* current = buffer + sizeof(buffer);
+  if (value == Value::minLargestInt) {
+    uintToString(LargestUInt(Value::maxLargestInt) + 1, current);
+    *--current = '-';
+  } else if (value < 0) {
+    uintToString(LargestUInt(-value), current);
+    *--current = '-';
+  } else {
+    uintToString(LargestUInt(value), current);
+  }
+  assert(current >= buffer);
+  return current;
+}
+
+JSONCPP_STRING valueToString(LargestUInt value) {
+  UIntToStringBuffer buffer;
+  char* current = buffer + sizeof(buffer);
+  uintToString(value, current);
+  assert(current >= buffer);
+  return current;
+}
+
+#if defined(JSON_HAS_INT64)
+
+JSONCPP_STRING valueToString(Int value) {
+  return valueToString(LargestInt(value));
+}
+
+JSONCPP_STRING valueToString(UInt value) {
+  return valueToString(LargestUInt(value));
+}
+
+#endif // # if defined(JSON_HAS_INT64)
+
+namespace {
+JSONCPP_STRING valueToString(double value, bool useSpecialFloats, unsigned int precision) {
+  // Allocate a buffer that is more than large enough to store the 16 digits of
+  // precision requested below.
+  char buffer[36];
+  int len = -1;
+
+  char formatString[15];
+  snprintf(formatString, sizeof(formatString), "%%.%ug", precision);
+
+  // Print into the buffer. We need not request the alternative representation
+  // that always has a decimal point because JSON doesn't distinguish the
+  // concepts of reals and integers.
+  if (isfinite(value)) {
+    len = snprintf(buffer, sizeof(buffer), formatString, value);
+    fixNumericLocale(buffer, buffer + len);
+
+    // try to ensure we preserve the fact that this was given to us as a double on input
+    if (!strchr(buffer, '.') && !strchr(buffer, 'e')) {
+      strcat(buffer, ".0");
+    }
+
+  } else {
+    // IEEE standard states that NaN values will not compare to themselves
+    if (value != value) {
+      len = snprintf(buffer, sizeof(buffer), useSpecialFloats ? "NaN" : "null");
+    } else if (value < 0) {
+      len = snprintf(buffer, sizeof(buffer), useSpecialFloats ? "-Infinity" : "-1e+9999");
+    } else {
+      len = snprintf(buffer, sizeof(buffer), useSpecialFloats ? "Infinity" : "1e+9999");
+    }
+  }
+  assert(len >= 0);
+  return buffer;
+}
+}
+
+JSONCPP_STRING valueToString(double value) { return valueToString(value, false, 17); }
+
+JSONCPP_STRING valueToString(bool value) { return value ? "true" : "false"; }
+
+static bool isAnyCharRequiredQuoting(char const* s, size_t n) {
+  assert(s || !n);
+
+  char const* const end = s + n;
+  for (char const* cur = s; cur < end; ++cur) {
+    if (*cur == '\\' || *cur == '\"' || *cur < ' '
+      || static_cast<unsigned char>(*cur) < 0x80)
+      return true;
+  }
+  return false;
+}
+
+static unsigned int utf8ToCodepoint(const char*& s, const char* e) {
+  const unsigned int REPLACEMENT_CHARACTER = 0xFFFD;
+
+  unsigned int firstByte = static_cast<unsigned char>(*s);
+
+  if (firstByte < 0x80)
+    return firstByte;
+
+  if (firstByte < 0xE0) {
+    if (e - s < 2)
+      return REPLACEMENT_CHARACTER;
+
+    unsigned int calculated = ((firstByte & 0x1F) << 6)
+      | (static_cast<unsigned int>(s[1]) & 0x3F);
+    s += 1;
+    // oversized encoded characters are invalid
+    return calculated < 0x80 ? REPLACEMENT_CHARACTER : calculated;
+  }
+
+  if (firstByte < 0xF0) {
+    if (e - s < 3)
+      return REPLACEMENT_CHARACTER;
+
+    unsigned int calculated = ((firstByte & 0x0F) << 12)
+      | ((static_cast<unsigned int>(s[1]) & 0x3F) << 6)
+      |  (static_cast<unsigned int>(s[2]) & 0x3F);
+    s += 2;
+    // surrogates aren't valid codepoints itself
+    // shouldn't be UTF-8 encoded
+    if (calculated >= 0xD800 && calculated <= 0xDFFF)
+      return REPLACEMENT_CHARACTER;
+    // oversized encoded characters are invalid
+    return calculated < 0x800 ? REPLACEMENT_CHARACTER : calculated;
+  }
+
+  if (firstByte < 0xF8) {
+    if (e - s < 4)
+      return REPLACEMENT_CHARACTER;
+
+    unsigned int calculated = ((firstByte & 0x07) << 24)
+      | ((static_cast<unsigned int>(s[1]) & 0x3F) << 12)
+      | ((static_cast<unsigned int>(s[2]) & 0x3F) << 6)
+      |  (static_cast<unsigned int>(s[3]) & 0x3F);
+    s += 3;
+    // oversized encoded characters are invalid
+    return calculated < 0x10000 ? REPLACEMENT_CHARACTER : calculated;
+  }
+
+  return REPLACEMENT_CHARACTER;
+}
+
+static const char hex2[] =
+  "000102030405060708090a0b0c0d0e0f"
+  "101112131415161718191a1b1c1d1e1f"
+  "202122232425262728292a2b2c2d2e2f"
+  "303132333435363738393a3b3c3d3e3f"
+  "404142434445464748494a4b4c4d4e4f"
+  "505152535455565758595a5b5c5d5e5f"
+  "606162636465666768696a6b6c6d6e6f"
+  "707172737475767778797a7b7c7d7e7f"
+  "808182838485868788898a8b8c8d8e8f"
+  "909192939495969798999a9b9c9d9e9f"
+  "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf"
+  "b0b1b2b3b4b5b6b7b8b9babbbcbdbebf"
+  "c0c1c2c3c4c5c6c7c8c9cacbcccdcecf"
+  "d0d1d2d3d4d5d6d7d8d9dadbdcdddedf"
+  "e0e1e2e3e4e5e6e7e8e9eaebecedeeef"
+  "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff";
+
+static JSONCPP_STRING toHex16Bit(unsigned int x) {
+  const unsigned int hi = (x >> 8) & 0xff;
+  const unsigned int lo = x & 0xff;
+  JSONCPP_STRING result(4, ' ');
+  result[0] = hex2[2 * hi];
+  result[1] = hex2[2 * hi + 1];
+  result[2] = hex2[2 * lo];
+  result[3] = hex2[2 * lo + 1];
+  return result;
+}
+
+static JSONCPP_STRING valueToQuotedStringN(const char* value, unsigned length) {
+  if (value == NULL)
+    return "";
+
+  if (!isAnyCharRequiredQuoting(value, length))
+    return JSONCPP_STRING("\"") + value + "\"";
+  // We have to walk value and escape any special characters.
+  // Appending to JSONCPP_STRING is not efficient, but this should be rare.
+  // (Note: forward slashes are *not* rare, but I am not escaping them.)
+  JSONCPP_STRING::size_type maxsize =
+      length * 2 + 3; // allescaped+quotes+NULL
+  JSONCPP_STRING result;
+  result.reserve(maxsize); // to avoid lots of mallocs
+  result += "\"";
+  char const* end = value + length;
+  for (const char* c = value; c != end; ++c) {
+    switch (*c) {
+    case '\"':
+      result += "\\\"";
+      break;
+    case '\\':
+      result += "\\\\";
+      break;
+    case '\b':
+      result += "\\b";
+      break;
+    case '\f':
+      result += "\\f";
+      break;
+    case '\n':
+      result += "\\n";
+      break;
+    case '\r':
+      result += "\\r";
+      break;
+    case '\t':
+      result += "\\t";
+      break;
+    // case '/':
+    // Even though \/ is considered a legal escape in JSON, a bare
+    // slash is also legal, so I see no reason to escape it.
+    // (I hope I am not misunderstanding something.)
+    // blep notes: actually escaping \/ may be useful in javascript to avoid </
+    // sequence.
+    // Should add a flag to allow this compatibility mode and prevent this
+    // sequence from occurring.
+    default: {
+        unsigned int cp = utf8ToCodepoint(c, end);
+        // don't escape non-control characters
+        // (short escape sequence are applied above)
+        if (cp < 0x80 && cp >= 0x20)
+          result += static_cast<char>(cp);
+        else if (cp < 0x10000) { // codepoint is in Basic Multilingual Plane
+          result += "\\u";
+          result += toHex16Bit(cp);
+        }
+        else { // codepoint is not in Basic Multilingual Plane
+               // convert to surrogate pair first
+          cp -= 0x10000;
+          result += "\\u";
+          result += toHex16Bit((cp >> 10) + 0xD800);
+          result += "\\u";
+          result += toHex16Bit((cp & 0x3FF) + 0xDC00);
+        }
+      }
+      break;
+    }
+  }
+  result += "\"";
+  return result;
+}
+
+JSONCPP_STRING valueToQuotedString(const char* value) {
+  return valueToQuotedStringN(value, static_cast<unsigned int>(strlen(value)));
+}
+
+// Class Writer
+// //////////////////////////////////////////////////////////////////
+Writer::~Writer() {}
+
+// Class FastWriter
+// //////////////////////////////////////////////////////////////////
+
+FastWriter::FastWriter()
+    : yamlCompatibilityEnabled_(false), dropNullPlaceholders_(false),
+      omitEndingLineFeed_(false) {}
+
+void FastWriter::enableYAMLCompatibility() { yamlCompatibilityEnabled_ = true; }
+
+void FastWriter::dropNullPlaceholders() { dropNullPlaceholders_ = true; }
+
+void FastWriter::omitEndingLineFeed() { omitEndingLineFeed_ = true; }
+
+JSONCPP_STRING FastWriter::write(const Value& root) {
+  document_.clear();
+  writeValue(root);
+  if (!omitEndingLineFeed_)
+    document_ += "\n";
+  return document_;
+}
+
+void FastWriter::writeValue(const Value& value) {
+  switch (value.type()) {
+  case nullValue:
+    if (!dropNullPlaceholders_)
+      document_ += "null";
+    break;
+  case intValue:
+    document_ += valueToString(value.asLargestInt());
+    break;
+  case uintValue:
+    document_ += valueToString(value.asLargestUInt());
+    break;
+  case realValue:
+    document_ += valueToString(value.asDouble());
+    break;
+  case stringValue:
+  {
+    // Is NULL possible for value.string_? No.
+    char const* str;
+    char const* end;
+    bool ok = value.getString(&str, &end);
+    if (ok) document_ += valueToQuotedStringN(str, static_cast<unsigned>(end-str));
+    break;
+  }
+  case booleanValue:
+    document_ += valueToString(value.asBool());
+    break;
+  case arrayValue: {
+    document_ += '[';
+    ArrayIndex size = value.size();
+    for (ArrayIndex index = 0; index < size; ++index) {
+      if (index > 0)
+        document_ += ',';
+      writeValue(value[index]);
+    }
+    document_ += ']';
+  } break;
+  case objectValue: {
+    Value::Members members(value.getMemberNames());
+    document_ += '{';
+    for (Value::Members::iterator it = members.begin(); it != members.end();
+         ++it) {
+      const JSONCPP_STRING& name = *it;
+      if (it != members.begin())
+        document_ += ',';
+      document_ += valueToQuotedStringN(name.data(), static_cast<unsigned>(name.length()));
+      document_ += yamlCompatibilityEnabled_ ? ": " : ":";
+      writeValue(value[name]);
+    }
+    document_ += '}';
+  } break;
+  }
+}
+
+// Class StyledWriter
+// //////////////////////////////////////////////////////////////////
+
+StyledWriter::StyledWriter()
+    : rightMargin_(74), indentSize_(3), addChildValues_() {}
+
+JSONCPP_STRING StyledWriter::write(const Value& root) {
+  document_.clear();
+  addChildValues_ = false;
+  indentString_.clear();
+  writeCommentBeforeValue(root);
+  writeValue(root);
+  writeCommentAfterValueOnSameLine(root);
+  document_ += "\n";
+  return document_;
+}
+
+void StyledWriter::writeValue(const Value& value) {
+  switch (value.type()) {
+  case nullValue:
+    pushValue("null");
+    break;
+  case intValue:
+    pushValue(valueToString(value.asLargestInt()));
+    break;
+  case uintValue:
+    pushValue(valueToString(value.asLargestUInt()));
+    break;
+  case realValue:
+    pushValue(valueToString(value.asDouble()));
+    break;
+  case stringValue:
+  {
+    // Is NULL possible for value.string_? No.
+    char const* str;
+    char const* end;
+    bool ok = value.getString(&str, &end);
+    if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
+    else pushValue("");
+    break;
+  }
+  case booleanValue:
+    pushValue(valueToString(value.asBool()));
+    break;
+  case arrayValue:
+    writeArrayValue(value);
+    break;
+  case objectValue: {
+    Value::Members members(value.getMemberNames());
+    if (members.empty())
+      pushValue("{}");
+    else {
+      writeWithIndent("{");
+      indent();
+      Value::Members::iterator it = members.begin();
+      for (;;) {
+        const JSONCPP_STRING& name = *it;
+        const Value& childValue = value[name];
+        writeCommentBeforeValue(childValue);
+        writeWithIndent(valueToQuotedString(name.c_str()));
+        document_ += " : ";
+        writeValue(childValue);
+        if (++it == members.end()) {
+          writeCommentAfterValueOnSameLine(childValue);
+          break;
+        }
+        document_ += ',';
+        writeCommentAfterValueOnSameLine(childValue);
+      }
+      unindent();
+      writeWithIndent("}");
+    }
+  } break;
+  }
+}
+
+void StyledWriter::writeArrayValue(const Value& value) {
+  unsigned size = value.size();
+  if (size == 0)
+    pushValue("[]");
+  else {
+    bool isArrayMultiLine = isMultilineArray(value);
+    if (isArrayMultiLine) {
+      writeWithIndent("[");
+      indent();
+      bool hasChildValue = !childValues_.empty();
+      unsigned index = 0;
+      for (;;) {
+        const Value& childValue = value[index];
+        writeCommentBeforeValue(childValue);
+        if (hasChildValue)
+          writeWithIndent(childValues_[index]);
+        else {
+          writeIndent();
+          writeValue(childValue);
+        }
+        if (++index == size) {
+          writeCommentAfterValueOnSameLine(childValue);
+          break;
+        }
+        document_ += ',';
+        writeCommentAfterValueOnSameLine(childValue);
+      }
+      unindent();
+      writeWithIndent("]");
+    } else // output on a single line
+    {
+      assert(childValues_.size() == size);
+      document_ += "[ ";
+      for (unsigned index = 0; index < size; ++index) {
+        if (index > 0)
+          document_ += ", ";
+        document_ += childValues_[index];
+      }
+      document_ += " ]";
+    }
+  }
+}
+
+bool StyledWriter::isMultilineArray(const Value& value) {
+  ArrayIndex const size = value.size();
+  bool isMultiLine = size * 3 >= rightMargin_;
+  childValues_.clear();
+  for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) {
+    const Value& childValue = value[index];
+    isMultiLine = ((childValue.isArray() || childValue.isObject()) &&
+                        childValue.size() > 0);
+  }
+  if (!isMultiLine) // check if line length > max line length
+  {
+    childValues_.reserve(size);
+    addChildValues_ = true;
+    ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
+    for (ArrayIndex index = 0; index < size; ++index) {
+      if (hasCommentForValue(value[index])) {
+        isMultiLine = true;
+      }
+      writeValue(value[index]);
+      lineLength += static_cast<ArrayIndex>(childValues_[index].length());
+    }
+    addChildValues_ = false;
+    isMultiLine = isMultiLine || lineLength >= rightMargin_;
+  }
+  return isMultiLine;
+}
+
+void StyledWriter::pushValue(const JSONCPP_STRING& value) {
+  if (addChildValues_)
+    childValues_.push_back(value);
+  else
+    document_ += value;
+}
+
+void StyledWriter::writeIndent() {
+  if (!document_.empty()) {
+    char last = document_[document_.length() - 1];
+    if (last == ' ') // already indented
+      return;
+    if (last != '\n') // Comments may add new-line
+      document_ += '\n';
+  }
+  document_ += indentString_;
+}
+
+void StyledWriter::writeWithIndent(const JSONCPP_STRING& value) {
+  writeIndent();
+  document_ += value;
+}
+
+void StyledWriter::indent() { indentString_ += JSONCPP_STRING(indentSize_, ' '); }
+
+void StyledWriter::unindent() {
+  assert(indentString_.size() >= indentSize_);
+  indentString_.resize(indentString_.size() - indentSize_);
+}
+
+void StyledWriter::writeCommentBeforeValue(const Value& root) {
+  if (!root.hasComment(commentBefore))
+    return;
+
+  document_ += "\n";
+  writeIndent();
+  const JSONCPP_STRING& comment = root.getComment(commentBefore);
+  JSONCPP_STRING::const_iterator iter = comment.begin();
+  while (iter != comment.end()) {
+    document_ += *iter;
+    if (*iter == '\n' &&
+       ((iter+1) != comment.end() && *(iter + 1) == '/'))
+      writeIndent();
+    ++iter;
+  }
+
+  // Comments are stripped of trailing newlines, so add one here
+  document_ += "\n";
+}
+
+void StyledWriter::writeCommentAfterValueOnSameLine(const Value& root) {
+  if (root.hasComment(commentAfterOnSameLine))
+    document_ += " " + root.getComment(commentAfterOnSameLine);
+
+  if (root.hasComment(commentAfter)) {
+    document_ += "\n";
+    document_ += root.getComment(commentAfter);
+    document_ += "\n";
+  }
+}
+
+bool StyledWriter::hasCommentForValue(const Value& value) {
+  return value.hasComment(commentBefore) ||
+         value.hasComment(commentAfterOnSameLine) ||
+         value.hasComment(commentAfter);
+}
+
+// Class StyledStreamWriter
+// //////////////////////////////////////////////////////////////////
+
+StyledStreamWriter::StyledStreamWriter(JSONCPP_STRING indentation)
+    : document_(NULL), rightMargin_(74), indentation_(indentation),
+      addChildValues_() {}
+
+void StyledStreamWriter::write(JSONCPP_OSTREAM& out, const Value& root) {
+  document_ = &out;
+  addChildValues_ = false;
+  indentString_.clear();
+  indented_ = true;
+  writeCommentBeforeValue(root);
+  if (!indented_) writeIndent();
+  indented_ = true;
+  writeValue(root);
+  writeCommentAfterValueOnSameLine(root);
+  *document_ << "\n";
+  document_ = NULL; // Forget the stream, for safety.
+}
+
+void StyledStreamWriter::writeValue(const Value& value) {
+  switch (value.type()) {
+  case nullValue:
+    pushValue("null");
+    break;
+  case intValue:
+    pushValue(valueToString(value.asLargestInt()));
+    break;
+  case uintValue:
+    pushValue(valueToString(value.asLargestUInt()));
+    break;
+  case realValue:
+    pushValue(valueToString(value.asDouble()));
+    break;
+  case stringValue:
+  {
+    // Is NULL possible for value.string_? No.
+    char const* str;
+    char const* end;
+    bool ok = value.getString(&str, &end);
+    if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
+    else pushValue("");
+    break;
+  }
+  case booleanValue:
+    pushValue(valueToString(value.asBool()));
+    break;
+  case arrayValue:
+    writeArrayValue(value);
+    break;
+  case objectValue: {
+    Value::Members members(value.getMemberNames());
+    if (members.empty())
+      pushValue("{}");
+    else {
+      writeWithIndent("{");
+      indent();
+      Value::Members::iterator it = members.begin();
+      for (;;) {
+        const JSONCPP_STRING& name = *it;
+        const Value& childValue = value[name];
+        writeCommentBeforeValue(childValue);
+        writeWithIndent(valueToQuotedString(name.c_str()));
+        *document_ << " : ";
+        writeValue(childValue);
+        if (++it == members.end()) {
+          writeCommentAfterValueOnSameLine(childValue);
+          break;
+        }
+        *document_ << ",";
+        writeCommentAfterValueOnSameLine(childValue);
+      }
+      unindent();
+      writeWithIndent("}");
+    }
+  } break;
+  }
+}
+
+void StyledStreamWriter::writeArrayValue(const Value& value) {
+  unsigned size = value.size();
+  if (size == 0)
+    pushValue("[]");
+  else {
+    bool isArrayMultiLine = isMultilineArray(value);
+    if (isArrayMultiLine) {
+      writeWithIndent("[");
+      indent();
+      bool hasChildValue = !childValues_.empty();
+      unsigned index = 0;
+      for (;;) {
+        const Value& childValue = value[index];
+        writeCommentBeforeValue(childValue);
+        if (hasChildValue)
+          writeWithIndent(childValues_[index]);
+        else {
+          if (!indented_) writeIndent();
+          indented_ = true;
+          writeValue(childValue);
+          indented_ = false;
+        }
+        if (++index == size) {
+          writeCommentAfterValueOnSameLine(childValue);
+          break;
+        }
+        *document_ << ",";
+        writeCommentAfterValueOnSameLine(childValue);
+      }
+      unindent();
+      writeWithIndent("]");
+    } else // output on a single line
+    {
+      assert(childValues_.size() == size);
+      *document_ << "[ ";
+      for (unsigned index = 0; index < size; ++index) {
+        if (index > 0)
+          *document_ << ", ";
+        *document_ << childValues_[index];
+      }
+      *document_ << " ]";
+    }
+  }
+}
+
+bool StyledStreamWriter::isMultilineArray(const Value& value) {
+  ArrayIndex const size = value.size();
+  bool isMultiLine = size * 3 >= rightMargin_;
+  childValues_.clear();
+  for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) {
+    const Value& childValue = value[index];
+    isMultiLine = ((childValue.isArray() || childValue.isObject()) &&
+                        childValue.size() > 0);
+  }
+  if (!isMultiLine) // check if line length > max line length
+  {
+    childValues_.reserve(size);
+    addChildValues_ = true;
+    ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
+    for (ArrayIndex index = 0; index < size; ++index) {
+      if (hasCommentForValue(value[index])) {
+        isMultiLine = true;
+      }
+      writeValue(value[index]);
+      lineLength += static_cast<ArrayIndex>(childValues_[index].length());
+    }
+    addChildValues_ = false;
+    isMultiLine = isMultiLine || lineLength >= rightMargin_;
+  }
+  return isMultiLine;
+}
+
+void StyledStreamWriter::pushValue(const JSONCPP_STRING& value) {
+  if (addChildValues_)
+    childValues_.push_back(value);
+  else
+    *document_ << value;
+}
+
+void StyledStreamWriter::writeIndent() {
+  // blep intended this to look at the so-far-written string
+  // to determine whether we are already indented, but
+  // with a stream we cannot do that. So we rely on some saved state.
+  // The caller checks indented_.
+  *document_ << '\n' << indentString_;
+}
+
+void StyledStreamWriter::writeWithIndent(const JSONCPP_STRING& value) {
+  if (!indented_) writeIndent();
+  *document_ << value;
+  indented_ = false;
+}
+
+void StyledStreamWriter::indent() { indentString_ += indentation_; }
+
+void StyledStreamWriter::unindent() {
+  assert(indentString_.size() >= indentation_.size());
+  indentString_.resize(indentString_.size() - indentation_.size());
+}
+
+void StyledStreamWriter::writeCommentBeforeValue(const Value& root) {
+  if (!root.hasComment(commentBefore))
+    return;
+
+  if (!indented_) writeIndent();
+  const JSONCPP_STRING& comment = root.getComment(commentBefore);
+  JSONCPP_STRING::const_iterator iter = comment.begin();
+  while (iter != comment.end()) {
+    *document_ << *iter;
+    if (*iter == '\n' &&
+       ((iter+1) != comment.end() && *(iter + 1) == '/'))
+      // writeIndent();  // would include newline
+      *document_ << indentString_;
+    ++iter;
+  }
+  indented_ = false;
+}
+
+void StyledStreamWriter::writeCommentAfterValueOnSameLine(const Value& root) {
+  if (root.hasComment(commentAfterOnSameLine))
+    *document_ << ' ' << root.getComment(commentAfterOnSameLine);
+
+  if (root.hasComment(commentAfter)) {
+    writeIndent();
+    *document_ << root.getComment(commentAfter);
+  }
+  indented_ = false;
+}
+
+bool StyledStreamWriter::hasCommentForValue(const Value& value) {
+  return value.hasComment(commentBefore) ||
+         value.hasComment(commentAfterOnSameLine) ||
+         value.hasComment(commentAfter);
+}
+
+//////////////////////////
+// BuiltStyledStreamWriter
+
+/// Scoped enums are not available until C++11.
+struct CommentStyle {
+  /// Decide whether to write comments.
+  enum Enum {
+    None,  ///< Drop all comments.
+    Most,  ///< Recover odd behavior of previous versions (not implemented yet).
+    All  ///< Keep all comments.
+  };
+};
+
+struct BuiltStyledStreamWriter : public StreamWriter
+{
+  BuiltStyledStreamWriter(
+      JSONCPP_STRING const& indentation,
+      CommentStyle::Enum cs,
+      JSONCPP_STRING const& colonSymbol,
+      JSONCPP_STRING const& nullSymbol,
+      JSONCPP_STRING const& endingLineFeedSymbol,
+      bool useSpecialFloats,
+      unsigned int precision);
+  int write(Value const& root, JSONCPP_OSTREAM* sout) JSONCPP_OVERRIDE;
+private:
+  void writeValue(Value const& value);
+  void writeArrayValue(Value const& value);
+  bool isMultilineArray(Value const& value);
+  void pushValue(JSONCPP_STRING const& value);
+  void writeIndent();
+  void writeWithIndent(JSONCPP_STRING const& value);
+  void indent();
+  void unindent();
+  void writeCommentBeforeValue(Value const& root);
+  void writeCommentAfterValueOnSameLine(Value const& root);
+  static bool hasCommentForValue(const Value& value);
+
+  typedef std::vector<JSONCPP_STRING> ChildValues;
+
+  ChildValues childValues_;
+  JSONCPP_STRING indentString_;
+  unsigned int rightMargin_;
+  JSONCPP_STRING indentation_;
+  CommentStyle::Enum cs_;
+  JSONCPP_STRING colonSymbol_;
+  JSONCPP_STRING nullSymbol_;
+  JSONCPP_STRING endingLineFeedSymbol_;
+  bool addChildValues_ : 1;
+  bool indented_ : 1;
+  bool useSpecialFloats_ : 1;
+  unsigned int precision_;
+};
+BuiltStyledStreamWriter::BuiltStyledStreamWriter(
+      JSONCPP_STRING const& indentation,
+      CommentStyle::Enum cs,
+      JSONCPP_STRING const& colonSymbol,
+      JSONCPP_STRING const& nullSymbol,
+      JSONCPP_STRING const& endingLineFeedSymbol,
+      bool useSpecialFloats,
+      unsigned int precision)
+  : rightMargin_(74)
+  , indentation_(indentation)
+  , cs_(cs)
+  , colonSymbol_(colonSymbol)
+  , nullSymbol_(nullSymbol)
+  , endingLineFeedSymbol_(endingLineFeedSymbol)
+  , addChildValues_(false)
+  , indented_(false)
+  , useSpecialFloats_(useSpecialFloats)
+  , precision_(precision)
+{
+}
+int BuiltStyledStreamWriter::write(Value const& root, JSONCPP_OSTREAM* sout)
+{
+  sout_ = sout;
+  addChildValues_ = false;
+  indented_ = true;
+  indentString_.clear();
+  writeCommentBeforeValue(root);
+  if (!indented_) writeIndent();
+  indented_ = true;
+  writeValue(root);
+  writeCommentAfterValueOnSameLine(root);
+  *sout_ << endingLineFeedSymbol_;
+  sout_ = NULL;
+  return 0;
+}
+void BuiltStyledStreamWriter::writeValue(Value const& value) {
+  switch (value.type()) {
+  case nullValue:
+    pushValue(nullSymbol_);
+    break;
+  case intValue:
+    pushValue(valueToString(value.asLargestInt()));
+    break;
+  case uintValue:
+    pushValue(valueToString(value.asLargestUInt()));
+    break;
+  case realValue:
+    pushValue(valueToString(value.asDouble(), useSpecialFloats_, precision_));
+    break;
+  case stringValue:
+  {
+    // Is NULL is possible for value.string_? No.
+    char const* str;
+    char const* end;
+    bool ok = value.getString(&str, &end);
+    if (ok) pushValue(valueToQuotedStringN(str, static_cast<unsigned>(end-str)));
+    else pushValue("");
+    break;
+  }
+  case booleanValue:
+    pushValue(valueToString(value.asBool()));
+    break;
+  case arrayValue:
+    writeArrayValue(value);
+    break;
+  case objectValue: {
+    Value::Members members(value.getMemberNames());
+    if (members.empty())
+      pushValue("{}");
+    else {
+      writeWithIndent("{");
+      indent();
+      Value::Members::iterator it = members.begin();
+      for (;;) {
+        JSONCPP_STRING const& name = *it;
+        Value const& childValue = value[name];
+        writeCommentBeforeValue(childValue);
+        writeWithIndent(valueToQuotedStringN(name.data(), static_cast<unsigned>(name.length())));
+        *sout_ << colonSymbol_;
+        writeValue(childValue);
+        if (++it == members.end()) {
+          writeCommentAfterValueOnSameLine(childValue);
+          break;
+        }
+        *sout_ << ",";
+        writeCommentAfterValueOnSameLine(childValue);
+      }
+      unindent();
+      writeWithIndent("}");
+    }
+  } break;
+  }
+}
+
+void BuiltStyledStreamWriter::writeArrayValue(Value const& value) {
+  unsigned size = value.size();
+  if (size == 0)
+    pushValue("[]");
+  else {
+    bool isMultiLine = (cs_ == CommentStyle::All) || isMultilineArray(value);
+    if (isMultiLine) {
+      writeWithIndent("[");
+      indent();
+      bool hasChildValue = !childValues_.empty();
+      unsigned index = 0;
+      for (;;) {
+        Value const& childValue = value[index];
+        writeCommentBeforeValue(childValue);
+        if (hasChildValue)
+          writeWithIndent(childValues_[index]);
+        else {
+          if (!indented_) writeIndent();
+          indented_ = true;
+          writeValue(childValue);
+          indented_ = false;
+        }
+        if (++index == size) {
+          writeCommentAfterValueOnSameLine(childValue);
+          break;
+        }
+        *sout_ << ",";
+        writeCommentAfterValueOnSameLine(childValue);
+      }
+      unindent();
+      writeWithIndent("]");
+    } else // output on a single line
+    {
+      assert(childValues_.size() == size);
+      *sout_ << "[";
+      if (!indentation_.empty()) *sout_ << " ";
+      for (unsigned index = 0; index < size; ++index) {
+        if (index > 0)
+          *sout_ << ((!indentation_.empty()) ? ", " : ",");
+        *sout_ << childValues_[index];
+      }
+      if (!indentation_.empty()) *sout_ << " ";
+      *sout_ << "]";
+    }
+  }
+}
+
+bool BuiltStyledStreamWriter::isMultilineArray(Value const& value) {
+  ArrayIndex const size = value.size();
+  bool isMultiLine = size * 3 >= rightMargin_;
+  childValues_.clear();
+  for (ArrayIndex index = 0; index < size && !isMultiLine; ++index) {
+    Value const& childValue = value[index];
+    isMultiLine = ((childValue.isArray() || childValue.isObject()) &&
+                        childValue.size() > 0);
+  }
+  if (!isMultiLine) // check if line length > max line length
+  {
+    childValues_.reserve(size);
+    addChildValues_ = true;
+    ArrayIndex lineLength = 4 + (size - 1) * 2; // '[ ' + ', '*n + ' ]'
+    for (ArrayIndex index = 0; index < size; ++index) {
+      if (hasCommentForValue(value[index])) {
+        isMultiLine = true;
+      }
+      writeValue(value[index]);
+      lineLength += static_cast<ArrayIndex>(childValues_[index].length());
+    }
+    addChildValues_ = false;
+    isMultiLine = isMultiLine || lineLength >= rightMargin_;
+  }
+  return isMultiLine;
+}
+
+void BuiltStyledStreamWriter::pushValue(JSONCPP_STRING const& value) {
+  if (addChildValues_)
+    childValues_.push_back(value);
+  else
+    *sout_ << value;
+}
+
+void BuiltStyledStreamWriter::writeIndent() {
+  // blep intended this to look at the so-far-written string
+  // to determine whether we are already indented, but
+  // with a stream we cannot do that. So we rely on some saved state.
+  // The caller checks indented_.
+
+  if (!indentation_.empty()) {
+    // In this case, drop newlines too.
+    *sout_ << '\n' << indentString_;
+  }
+}
+
+void BuiltStyledStreamWriter::writeWithIndent(JSONCPP_STRING const& value) {
+  if (!indented_) writeIndent();
+  *sout_ << value;
+  indented_ = false;
+}
+
+void BuiltStyledStreamWriter::indent() { indentString_ += indentation_; }
+
+void BuiltStyledStreamWriter::unindent() {
+  assert(indentString_.size() >= indentation_.size());
+  indentString_.resize(indentString_.size() - indentation_.size());
+}
+
+void BuiltStyledStreamWriter::writeCommentBeforeValue(Value const& root) {
+  if (cs_ == CommentStyle::None) return;
+  if (!root.hasComment(commentBefore))
+    return;
+
+  if (!indented_) writeIndent();
+  const JSONCPP_STRING& comment = root.getComment(commentBefore);
+  JSONCPP_STRING::const_iterator iter = comment.begin();
+  while (iter != comment.end()) {
+    *sout_ << *iter;
+    if (*iter == '\n' &&
+       ((iter+1) != comment.end() && *(iter + 1) == '/'))
+      // writeIndent();  // would write extra newline
+      *sout_ << indentString_;
+    ++iter;
+  }
+  indented_ = false;
+}
+
+void BuiltStyledStreamWriter::writeCommentAfterValueOnSameLine(Value const& root) {
+  if (cs_ == CommentStyle::None) return;
+  if (root.hasComment(commentAfterOnSameLine))
+    *sout_ << " " + root.getComment(commentAfterOnSameLine);
+
+  if (root.hasComment(commentAfter)) {
+    writeIndent();
+    *sout_ << root.getComment(commentAfter);
+  }
+}
+
+// static
+bool BuiltStyledStreamWriter::hasCommentForValue(const Value& value) {
+  return value.hasComment(commentBefore) ||
+         value.hasComment(commentAfterOnSameLine) ||
+         value.hasComment(commentAfter);
+}
+
+///////////////
+// StreamWriter
+
+StreamWriter::StreamWriter()
+    : sout_(NULL)
+{
+}
+StreamWriter::~StreamWriter()
+{
+}
+StreamWriter::Factory::~Factory()
+{}
+StreamWriterBuilder::StreamWriterBuilder()
+{
+  setDefaults(&settings_);
+}
+StreamWriterBuilder::~StreamWriterBuilder()
+{}
+StreamWriter* StreamWriterBuilder::newStreamWriter() const
+{
+  JSONCPP_STRING indentation = settings_["indentation"].asString();
+  JSONCPP_STRING cs_str = settings_["commentStyle"].asString();
+  bool eyc = settings_["enableYAMLCompatibility"].asBool();
+  bool dnp = settings_["dropNullPlaceholders"].asBool();
+  bool usf = settings_["useSpecialFloats"].asBool(); 
+  unsigned int pre = settings_["precision"].asUInt();
+  CommentStyle::Enum cs = CommentStyle::All;
+  if (cs_str == "All") {
+    cs = CommentStyle::All;
+  } else if (cs_str == "None") {
+    cs = CommentStyle::None;
+  } else {
+    throwRuntimeError("commentStyle must be 'All' or 'None'");
+  }
+  JSONCPP_STRING colonSymbol = " : ";
+  if (eyc) {
+    colonSymbol = ": ";
+  } else if (indentation.empty()) {
+    colonSymbol = ":";
+  }
+  JSONCPP_STRING nullSymbol = "null";
+  if (dnp) {
+    nullSymbol.clear();
+  }
+  if (pre > 17) pre = 17;
+  JSONCPP_STRING endingLineFeedSymbol;
+  return new BuiltStyledStreamWriter(
+      indentation, cs,
+      colonSymbol, nullSymbol, endingLineFeedSymbol, usf, pre);
+}
+static void getValidWriterKeys(std::set<JSONCPP_STRING>* valid_keys)
+{
+  valid_keys->clear();
+  valid_keys->insert("indentation");
+  valid_keys->insert("commentStyle");
+  valid_keys->insert("enableYAMLCompatibility");
+  valid_keys->insert("dropNullPlaceholders");
+  valid_keys->insert("useSpecialFloats");
+  valid_keys->insert("precision");
+}
+bool StreamWriterBuilder::validate(Json::Value* invalid) const
+{
+  Json::Value my_invalid;
+  if (!invalid) invalid = &my_invalid;  // so we do not need to test for NULL
+  Json::Value& inv = *invalid;
+  std::set<JSONCPP_STRING> valid_keys;
+  getValidWriterKeys(&valid_keys);
+  Value::Members keys = settings_.getMemberNames();
+  size_t n = keys.size();
+  for (size_t i = 0; i < n; ++i) {
+    JSONCPP_STRING const& key = keys[i];
+    if (valid_keys.find(key) == valid_keys.end()) {
+      inv[key] = settings_[key];
+    }
+  }
+  return 0u == inv.size();
+}
+Value& StreamWriterBuilder::operator[](JSONCPP_STRING key)
+{
+  return settings_[key];
+}
+// static
+void StreamWriterBuilder::setDefaults(Json::Value* settings)
+{
+  //! [StreamWriterBuilderDefaults]
+  (*settings)["commentStyle"] = "All";
+  (*settings)["indentation"] = "\t";
+  (*settings)["enableYAMLCompatibility"] = false;
+  (*settings)["dropNullPlaceholders"] = false;
+  (*settings)["useSpecialFloats"] = false;
+  (*settings)["precision"] = 17;
+  //! [StreamWriterBuilderDefaults]
+}
+
+JSONCPP_STRING writeString(StreamWriter::Factory const& builder, Value const& root) {
+  JSONCPP_OSTRINGSTREAM sout;
+  StreamWriterPtr const writer(builder.newStreamWriter());
+  writer->write(root, &sout);
+  return sout.str();
+}
+
+JSONCPP_OSTREAM& operator<<(JSONCPP_OSTREAM& sout, Value const& root) {
+  StreamWriterBuilder builder;
+  StreamWriterPtr const writer(builder.newStreamWriter());
+  writer->write(root, &sout);
+  return sout;
+}
+
+} // namespace Json
diff -r 000000000000 -r 2ee762ea11b3 jsoncpp/src/lib_json/version.h.in
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jsoncpp/src/lib_json/version.h.in	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,20 @@
+// DO NOT EDIT. This file (and "version") is generated by CMake.
+// Run CMake configure step to update it.
+#ifndef JSON_VERSION_H_INCLUDED
+# define JSON_VERSION_H_INCLUDED
+
+# define JSONCPP_VERSION_STRING "@JSONCPP_VERSION@"
+# define JSONCPP_VERSION_MAJOR @JSONCPP_VERSION_MAJOR@
+# define JSONCPP_VERSION_MINOR @JSONCPP_VERSION_MINOR@
+# define JSONCPP_VERSION_PATCH @JSONCPP_VERSION_PATCH@
+# define JSONCPP_VERSION_QUALIFIER
+# define JSONCPP_VERSION_HEXA ((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) | (JSONCPP_VERSION_PATCH << 8))
+
+#ifdef JSONCPP_USING_SECURE_MEMORY
+#undef JSONCPP_USING_SECURE_MEMORY
+#endif
+#define JSONCPP_USING_SECURE_MEMORY @JSONCPP_USE_SECURE_MEMORY@
+// If non-zero, the library zeroes any memory that it has allocated before
+// it frees its memory.
+
+#endif // JSON_VERSION_H_INCLUDED
diff -r 000000000000 -r 2ee762ea11b3 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,286 @@
+#include "mbed.h"
+
+#include <json/config.h>
+#include <json/value.h>
+#include <json/writer.h>
+#include <json/config.h>
+#include <json/json.h>
+#include <cstring>
+#include <limits>
+#include <sstream>
+#include <string>
+#include <iomanip>
+#include <stdio.h>
+#include <deque>
+
+DigitalOut led1(LED1);
+Serial pc(USBTX, USBRX);
+
+bool running;
+Thread thread;
+
+// Blink function toggles the led in a long running loop
+void blink(DigitalOut *led) {
+    while (running) {
+        *led = !*led;
+        wait(1);
+    }
+}
+
+void callback_ex() {
+    // Note: you need to actually read from the serial to clear the RX interrupt
+    int tmp=pc.getc();
+    //printf("%c\n", tmp);
+}
+
+// Spawns a thread to run blink for 5 seconds
+// main() runs in its own thread in the OS
+int main() {
+    
+    
+    pc.baud(9600);
+    pc.attach(&callback_ex);
+    
+    thread.start(callback(blink, &led1));
+    
+    running = true;
+
+    
+    //thread_gsensor.start(callback(gsensorThread));
+    //wait(1);
+    //thread_motor.start(callback(motorThread));
+    //wait(1);
+    //thread_sonar.start(callback(sonarThread));
+    
+    //Thread thread_sonar(sonarThread);
+    
+     Json::Reader reader;
+
+  Json::Value json_object;
+
+  const char* json_document = "{\"age\" : 26,\"name\" : \"huchao\"}";
+
+  if (!reader.parse(json_document, json_object))return 0;
+
+  printf("name : %s\n",json_object["name"]);
+
+  printf("name : %s\n",json_object["age"]);
+}
+
+
+/*
+主程序指定中断函数
+flipper.attach(&flip, 2.0); // the address of the function to be attached (flip) and the interval (2 seconds)
+
+主程序指定 类 的 方法
+t.attach(callback(&f, &Flipper::flip), 2.0); // the address of the object, member function, and interval
+
+
+1、线程
+需加载mbed-os
+
+#include "mbed.h"
+
+Thread thread;
+DigitalOut led1(LED1);
+volatile bool running = true;
+
+// Blink function toggles the led in a long running loop
+void blink(DigitalOut *led) {
+    while (running) {
+        *led = !*led;
+        wait(1);
+    }
+}
+
+// Spawns a thread to run blink for 5 seconds
+int main() {
+    thread.start(callback(blink, &led1));
+    wait(5);
+    running = false;
+    thread.join();
+}
+
+
+2、休眠+按键中断唤醒
+需更新mbed
+使用F401板时,IDD电流测试,运行时:18mA,灯亮时21 .2mA,睡眠时:6.26 mA,深度睡眠时:0.68 mA,
+
+RTC唤醒使用第三方类(未测试)
+
+#include "mbed.h"
+
+InterruptIn event(USER_BUTTON);
+DigitalOut myled(LED1);
+
+int go_to_sleep = 0;
+
+void pressed()
+{
+    printf("Button pressed\n");
+    go_to_sleep = go_to_sleep + 1;
+    if (go_to_sleep > 3) go_to_sleep = 0;
+
+}
+
+int main()
+{
+    int i = 0;
+
+    printf("\nPress Button to enter/exit sleep & deepsleep\n");
+
+    event.fall(&pressed);
+
+    while (1) {
+
+        if ((go_to_sleep == 0) || (go_to_sleep == 2)) {
+            printf("%d: Running\n", i);
+            myled = !myled;
+            wait(1.0);
+        }
+
+        if (go_to_sleep == 1) {
+            myled = 0;
+            printf("%d: Entering sleep (press user button to resume)\n", i);
+            sleep();
+        }
+
+        if (go_to_sleep == 3) {
+            myled = 0;
+            printf("%d: Entering deepsleep (press user button to resume)\n", i);
+            deepsleep();
+        }
+
+        i++;
+    }
+}
+
+
+3、系统定时器中断
+#include "mbed.h"
+
+Ticker toggle_led_ticker;
+
+DigitalOut led1(LED1);
+
+void toggle_led() {
+    led1 = !led1;
+}
+
+int main() {
+    // Init the ticker with the address of the function (toggle_led) to be attached and the interval (100 ms)
+    toggle_led_ticker.attach(&toggle_led, 0.1);
+    while (true) {
+        // Do other things...
+    }
+}
+
+4、超时定时器中断
+#include "mbed.h"
+ 
+// A class for flip()-ing a DigitalOut 
+class Flipper {
+public:
+    Flipper(PinName pin) : _pin(pin) {
+        _pin = 0;
+    }
+    void flip() {
+        _pin = !_pin;
+    }
+private:
+    DigitalOut _pin;
+};
+ 
+DigitalOut led1(LED1);
+Flipper f(LED2);
+Timeout t;
+ 
+int main() {
+    // the address of the object, member function, and interval
+    t.attach(callback(&f, &Flipper::flip), 2.0); 
+ 
+    // spin in a main loop. flipper will interrupt it to call flip
+    while(1) {
+        led1 = !led1;
+        wait(0.2);
+    }
+}
+            
+
+5、通用定时器中断
+
+ // Count the time to toggle a LED
+ 
+ #include "mbed.h"
+ 
+ Timer timer;
+ DigitalOut led(LED1);
+ int begin, end;
+ 
+ int main() {
+     timer.start();
+     begin = timer.read_us();
+     led = !led;
+     end = timer.read_us();
+     printf("Toggle the led takes %d us", end - begin);
+ }
+
+6、外部中断附加事件
+需加载mbed-os
+
+#include "mbed.h"
+#include "mbed_events.h"
+
+DigitalOut led1(LED1);
+InterruptIn sw(SW2);
+EventQueue queue(32 * EVENTS_EVENT_SIZE);
+Thread t;
+
+void rise_handler(void) {
+    // Toggle LED
+    led1 = !led1;
+}
+
+void fall_handler(void) {
+    printf("fall_handler in context %p\r\n", Thread::gettid());
+    // Toggle LED
+    led1 = !led1;
+}
+
+int main() {
+    // Start the event queue
+    t.start(callback(&queue, &EventQueue::dispatch_forever));
+    printf("Starting in context %p\r\n", Thread::gettid());
+    // The 'rise' handler will execute in IRQ context
+    sw.rise(rise_handler);
+    // The 'fall' handler will execute in the context of thread 't'
+    sw.fall(queue.event(fall_handler));
+}
+
+
+7、线程间信号量的传递
+需加载mbed-os
+
+#include "mbed.h"
+ 
+Thread thread;
+DigitalOut led(LED1);
+ 
+void led_thread() {
+    while (true) {
+        // Signal flags that are reported as event are automatically cleared.
+        Thread::signal_wait(0x1);
+        led = !led;
+    }
+}
+ 
+int main (void) {
+    thread.start(callback(led_thread));
+ 
+    while (true) {
+        wait(1);
+        thread.signal_set(0x1);
+    }
+}
+
+*/
diff -r 000000000000 -r 2ee762ea11b3 mbed-os.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-os.lib	Fri Jan 26 06:05:31 2018 +0000
@@ -0,0 +1,1 @@
+https://github.com/ARMmbed/mbed-os/#5f6572179d66ce4c09d6517b659ac51133cc980d