mirror of
https://github.com/minetest/minetest.git
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dbbe0ca065
note: the version number is different due to https://github.com/open-source-parsers/jsoncpp/issues/1571
2422 lines
78 KiB
C++
2422 lines
78 KiB
C++
/// Json-cpp amalgamated header (https://github.com/open-source-parsers/jsoncpp/).
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/// It is intended to be used with #include "json/json.h"
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: LICENSE
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// //////////////////////////////////////////////////////////////////////
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/*
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The JsonCpp library's source code, including accompanying documentation,
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tests and demonstration applications, are licensed under the following
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conditions...
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Baptiste Lepilleur and The JsonCpp Authors explicitly disclaim copyright in all
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jurisdictions which recognize such a disclaimer. In such jurisdictions,
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this software is released into the Public Domain.
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In jurisdictions which do not recognize Public Domain property (e.g. Germany as of
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2010), this software is Copyright (c) 2007-2010 by Baptiste Lepilleur and
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The JsonCpp Authors, and is released under the terms of the MIT License (see below).
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In jurisdictions which recognize Public Domain property, the user of this
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software may choose to accept it either as 1) Public Domain, 2) under the
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conditions of the MIT License (see below), or 3) under the terms of dual
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Public Domain/MIT License conditions described here, as they choose.
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The MIT License is about as close to Public Domain as a license can get, and is
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described in clear, concise terms at:
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http://en.wikipedia.org/wiki/MIT_License
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The full text of the MIT License follows:
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========================================================================
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Copyright (c) 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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========================================================================
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(END LICENSE TEXT)
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The MIT license is compatible with both the GPL and commercial
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software, affording one all of the rights of Public Domain with the
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minor nuisance of being required to keep the above copyright notice
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and license text in the source code. Note also that by accepting the
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Public Domain "license" you can re-license your copy using whatever
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license you like.
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*/
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// //////////////////////////////////////////////////////////////////////
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// End of content of file: LICENSE
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// //////////////////////////////////////////////////////////////////////
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#ifndef JSON_AMALGAMATED_H_INCLUDED
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# define JSON_AMALGAMATED_H_INCLUDED
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/// If defined, indicates that the source file is amalgamated
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/// to prevent private header inclusion.
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#define JSON_IS_AMALGAMATION
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: include/json/version.h
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// //////////////////////////////////////////////////////////////////////
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#ifndef JSON_VERSION_H_INCLUDED
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#define JSON_VERSION_H_INCLUDED
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// Note: version must be updated in three places when doing a release. This
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// annoying process ensures that amalgamate, CMake, and meson all report the
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// correct version.
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// 1. /meson.build
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// 2. /include/json/version.h
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// 3. /CMakeLists.txt
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// IMPORTANT: also update the SOVERSION!!
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#define JSONCPP_VERSION_STRING "1.9.7"
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#define JSONCPP_VERSION_MAJOR 1
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#define JSONCPP_VERSION_MINOR 9
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#define JSONCPP_VERSION_PATCH 7
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#define JSONCPP_VERSION_QUALIFIER
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#define JSONCPP_VERSION_HEXA \
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((JSONCPP_VERSION_MAJOR << 24) | (JSONCPP_VERSION_MINOR << 16) | \
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(JSONCPP_VERSION_PATCH << 8))
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#if !defined(JSONCPP_USE_SECURE_MEMORY)
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#define JSONCPP_USE_SECURE_MEMORY 0
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#endif
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// If non-zero, the library zeroes any memory that it has allocated before
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// it frees its memory.
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#endif // JSON_VERSION_H_INCLUDED
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// //////////////////////////////////////////////////////////////////////
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// End of content of file: include/json/version.h
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// //////////////////////////////////////////////////////////////////////
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: include/json/allocator.h
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// //////////////////////////////////////////////////////////////////////
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// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
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// Distributed under MIT license, or public domain if desired and
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// recognized in your jurisdiction.
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// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
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#ifndef JSON_ALLOCATOR_H_INCLUDED
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#define JSON_ALLOCATOR_H_INCLUDED
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#include <algorithm>
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#include <cstring>
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#include <memory>
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#pragma pack(push)
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#pragma pack()
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namespace Json {
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template <typename T> class SecureAllocator {
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public:
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// Type definitions
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using value_type = T;
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using pointer = T*;
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using const_pointer = const T*;
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using reference = T&;
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using const_reference = const T&;
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using size_type = std::size_t;
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using difference_type = std::ptrdiff_t;
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/**
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* Allocate memory for N items using the standard allocator.
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*/
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pointer allocate(size_type n) {
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// allocate using "global operator new"
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return static_cast<pointer>(::operator new(n * sizeof(T)));
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}
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/**
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* Release memory which was allocated for N items at pointer P.
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*
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* The memory block is filled with zeroes before being released.
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*/
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void deallocate(pointer p, size_type n) {
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// These constructs will not be removed by the compiler during optimization,
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// unlike memset.
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#if defined(HAVE_MEMSET_S)
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memset_s(p, n * sizeof(T), 0, n * sizeof(T));
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#elif defined(_WIN32)
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RtlSecureZeroMemory(p, n * sizeof(T));
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#else
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std::fill_n(reinterpret_cast<volatile unsigned char*>(p), n, 0);
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#endif
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// free using "global operator delete"
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::operator delete(p);
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}
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/**
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* Construct an item in-place at pointer P.
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*/
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template <typename... Args> void construct(pointer p, Args&&... args) {
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// construct using "placement new" and "perfect forwarding"
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::new (static_cast<void*>(p)) T(std::forward<Args>(args)...);
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}
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size_type max_size() const { return size_t(-1) / sizeof(T); }
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pointer address(reference x) const { return std::addressof(x); }
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const_pointer address(const_reference x) const { return std::addressof(x); }
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/**
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* Destroy an item in-place at pointer P.
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*/
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void destroy(pointer p) {
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// destroy using "explicit destructor"
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p->~T();
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}
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// Boilerplate
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SecureAllocator() {}
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template <typename U> SecureAllocator(const SecureAllocator<U>&) {}
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template <typename U> struct rebind {
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using other = SecureAllocator<U>;
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};
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};
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template <typename T, typename U>
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bool operator==(const SecureAllocator<T>&, const SecureAllocator<U>&) {
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return true;
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}
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template <typename T, typename U>
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bool operator!=(const SecureAllocator<T>&, const SecureAllocator<U>&) {
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return false;
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}
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} // namespace Json
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#pragma pack(pop)
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#endif // JSON_ALLOCATOR_H_INCLUDED
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// //////////////////////////////////////////////////////////////////////
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// End of content of file: include/json/allocator.h
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// //////////////////////////////////////////////////////////////////////
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: include/json/config.h
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// //////////////////////////////////////////////////////////////////////
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// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
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// Distributed under MIT license, or public domain if desired and
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// recognized in your jurisdiction.
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// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
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#ifndef JSON_CONFIG_H_INCLUDED
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#define JSON_CONFIG_H_INCLUDED
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#include <cstddef>
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#include <cstdint>
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#include <istream>
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#include <memory>
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#include <ostream>
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#include <sstream>
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#include <string>
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#include <type_traits>
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// If non-zero, the library uses exceptions to report bad input instead of C
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// assertion macros. The default is to use exceptions.
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#ifndef JSON_USE_EXCEPTION
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#define JSON_USE_EXCEPTION 1
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#endif
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// Temporary, tracked for removal with issue #982.
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#ifndef JSON_USE_NULLREF
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#define JSON_USE_NULLREF 1
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#endif
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/// If defined, indicates that the source file is amalgamated
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/// to prevent private header inclusion.
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/// Remarks: it is automatically defined in the generated amalgamated header.
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// #define JSON_IS_AMALGAMATION
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// Export macros for DLL visibility
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#if defined(JSON_DLL_BUILD)
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#define JSON_API __declspec(dllexport)
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#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
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#elif defined(__GNUC__) || defined(__clang__)
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#define JSON_API __attribute__((visibility("default")))
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#endif // if defined(_MSC_VER)
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#elif defined(JSON_DLL)
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#if defined(_MSC_VER) || defined(__MINGW32__)
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#define JSON_API __declspec(dllimport)
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#define JSONCPP_DISABLE_DLL_INTERFACE_WARNING
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#endif // if defined(_MSC_VER)
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#endif // ifdef JSON_DLL_BUILD
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#if !defined(JSON_API)
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#define JSON_API
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#endif
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#if defined(_MSC_VER) && _MSC_VER < 1800
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#error \
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"ERROR: Visual Studio 12 (2013) with _MSC_VER=1800 is the oldest supported compiler with sufficient C++11 capabilities"
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#endif
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#if defined(_MSC_VER) && _MSC_VER < 1900
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// As recommended at
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// https://stackoverflow.com/questions/2915672/snprintf-and-visual-studio-2010
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extern JSON_API int msvc_pre1900_c99_snprintf(char* outBuf, size_t size,
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const char* format, ...);
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#define jsoncpp_snprintf msvc_pre1900_c99_snprintf
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#else
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#define jsoncpp_snprintf std::snprintf
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#endif
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// If JSON_NO_INT64 is defined, then Json only support C++ "int" type for
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// integer
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// Storages, and 64 bits integer support is disabled.
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// #define JSON_NO_INT64 1
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// JSONCPP_OVERRIDE is maintained for backwards compatibility of external tools.
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// C++11 should be used directly in JSONCPP.
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#define JSONCPP_OVERRIDE override
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#ifdef __clang__
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#if __has_extension(attribute_deprecated_with_message)
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#define JSONCPP_DEPRECATED(message) __attribute__((deprecated(message)))
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#endif
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#elif defined(__GNUC__) // not clang (gcc comes later since clang emulates gcc)
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#if (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
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#define JSONCPP_DEPRECATED(message) __attribute__((deprecated(message)))
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#elif (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 1))
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#define JSONCPP_DEPRECATED(message) __attribute__((__deprecated__))
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#endif // GNUC version
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#elif defined(_MSC_VER) // MSVC (after clang because clang on Windows emulates
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// MSVC)
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#define JSONCPP_DEPRECATED(message) __declspec(deprecated(message))
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#endif // __clang__ || __GNUC__ || _MSC_VER
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#if !defined(JSONCPP_DEPRECATED)
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#define JSONCPP_DEPRECATED(message)
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#endif // if !defined(JSONCPP_DEPRECATED)
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#if defined(__clang__) || (defined(__GNUC__) && (__GNUC__ >= 6))
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#define JSON_USE_INT64_DOUBLE_CONVERSION 1
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#endif
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#if !defined(JSON_IS_AMALGAMATION)
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#include "allocator.h"
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#include "version.h"
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#endif // if !defined(JSON_IS_AMALGAMATION)
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namespace Json {
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using Int = int;
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using UInt = unsigned int;
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#if defined(JSON_NO_INT64)
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using LargestInt = int;
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using LargestUInt = unsigned int;
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#undef JSON_HAS_INT64
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#else // if defined(JSON_NO_INT64)
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// For Microsoft Visual use specific types as long long is not supported
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#if defined(_MSC_VER) // Microsoft Visual Studio
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using Int64 = __int64;
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using UInt64 = unsigned __int64;
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#else // if defined(_MSC_VER) // Other platforms, use long long
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using Int64 = int64_t;
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using UInt64 = uint64_t;
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#endif // if defined(_MSC_VER)
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using LargestInt = Int64;
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using LargestUInt = UInt64;
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#define JSON_HAS_INT64
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#endif // if defined(JSON_NO_INT64)
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template <typename T>
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using Allocator =
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typename std::conditional<JSONCPP_USE_SECURE_MEMORY, SecureAllocator<T>,
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std::allocator<T>>::type;
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using String = std::basic_string<char, std::char_traits<char>, Allocator<char>>;
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using IStringStream =
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std::basic_istringstream<String::value_type, String::traits_type,
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String::allocator_type>;
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using OStringStream =
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std::basic_ostringstream<String::value_type, String::traits_type,
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String::allocator_type>;
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using IStream = std::istream;
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using OStream = std::ostream;
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} // namespace Json
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// Legacy names (formerly macros).
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using JSONCPP_STRING = Json::String;
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using JSONCPP_ISTRINGSTREAM = Json::IStringStream;
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using JSONCPP_OSTRINGSTREAM = Json::OStringStream;
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using JSONCPP_ISTREAM = Json::IStream;
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using JSONCPP_OSTREAM = Json::OStream;
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#endif // JSON_CONFIG_H_INCLUDED
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// //////////////////////////////////////////////////////////////////////
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// End of content of file: include/json/config.h
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// //////////////////////////////////////////////////////////////////////
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: include/json/forwards.h
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// //////////////////////////////////////////////////////////////////////
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// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
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// Distributed under MIT license, or public domain if desired and
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// recognized in your jurisdiction.
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// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
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#ifndef JSON_FORWARDS_H_INCLUDED
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#define JSON_FORWARDS_H_INCLUDED
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#if !defined(JSON_IS_AMALGAMATION)
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#include "config.h"
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#endif // if !defined(JSON_IS_AMALGAMATION)
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namespace Json {
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// writer.h
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class StreamWriter;
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class StreamWriterBuilder;
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class Writer;
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class FastWriter;
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class StyledWriter;
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class StyledStreamWriter;
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// reader.h
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class Reader;
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class CharReader;
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class CharReaderBuilder;
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// json_features.h
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class Features;
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// value.h
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using ArrayIndex = unsigned int;
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class StaticString;
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class Path;
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class PathArgument;
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class Value;
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class ValueIteratorBase;
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class ValueIterator;
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class ValueConstIterator;
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} // namespace Json
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#endif // JSON_FORWARDS_H_INCLUDED
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// //////////////////////////////////////////////////////////////////////
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// End of content of file: include/json/forwards.h
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// //////////////////////////////////////////////////////////////////////
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: include/json/json_features.h
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// //////////////////////////////////////////////////////////////////////
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// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
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// Distributed under MIT license, or public domain if desired and
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// recognized in your jurisdiction.
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// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
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#ifndef JSON_FEATURES_H_INCLUDED
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#define JSON_FEATURES_H_INCLUDED
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#if !defined(JSON_IS_AMALGAMATION)
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#include "forwards.h"
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#endif // if !defined(JSON_IS_AMALGAMATION)
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#pragma pack(push)
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#pragma pack()
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namespace Json {
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/** \brief Configuration passed to reader and writer.
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* This configuration object can be used to force the Reader or Writer
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* to behave in a standard conforming way.
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*/
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class JSON_API Features {
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public:
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/** \brief A configuration that allows all features and assumes all strings
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* are UTF-8.
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* - C & C++ comments are allowed
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* - Root object can be any JSON value
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* - Assumes Value strings are encoded in UTF-8
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*/
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static Features all();
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/** \brief A configuration that is strictly compatible with the JSON
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* specification.
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* - Comments are forbidden.
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* - Root object must be either an array or an object value.
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* - Assumes Value strings are encoded in UTF-8
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*/
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static Features strictMode();
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/** \brief Initialize the configuration like JsonConfig::allFeatures;
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*/
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Features();
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/// \c true if comments are allowed. Default: \c true.
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bool allowComments_{true};
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/// \c true if root must be either an array or an object value. Default: \c
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/// false.
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bool strictRoot_{false};
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/// \c true if dropped null placeholders are allowed. Default: \c false.
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bool allowDroppedNullPlaceholders_{false};
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/// \c true if numeric object key are allowed. Default: \c false.
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bool allowNumericKeys_{false};
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};
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} // namespace Json
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#pragma pack(pop)
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#endif // JSON_FEATURES_H_INCLUDED
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// //////////////////////////////////////////////////////////////////////
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// End of content of file: include/json/json_features.h
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// //////////////////////////////////////////////////////////////////////
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// //////////////////////////////////////////////////////////////////////
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// Beginning of content of file: include/json/value.h
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// //////////////////////////////////////////////////////////////////////
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// Copyright 2007-2010 Baptiste Lepilleur and The JsonCpp Authors
|
|
// Distributed under MIT license, or public domain if desired and
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// recognized in your jurisdiction.
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// See file LICENSE for detail or copy at http://jsoncpp.sourceforge.net/LICENSE
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#ifndef JSON_VALUE_H_INCLUDED
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#define JSON_VALUE_H_INCLUDED
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#if !defined(JSON_IS_AMALGAMATION)
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#include "forwards.h"
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#endif // if !defined(JSON_IS_AMALGAMATION)
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// Conditional NORETURN attribute on the throw functions would:
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// a) suppress false positives from static code analysis
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// b) possibly improve optimization opportunities.
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#if !defined(JSONCPP_NORETURN)
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#if defined(_MSC_VER) && _MSC_VER == 1800
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#define JSONCPP_NORETURN __declspec(noreturn)
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#else
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#define JSONCPP_NORETURN [[noreturn]]
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#endif
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#endif
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// Support for '= delete' with template declarations was a late addition
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// to the c++11 standard and is rejected by clang 3.8 and Apple clang 8.2
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// even though these declare themselves to be c++11 compilers.
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#if !defined(JSONCPP_TEMPLATE_DELETE)
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#if defined(__clang__) && defined(__apple_build_version__)
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#if __apple_build_version__ <= 8000042
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#define JSONCPP_TEMPLATE_DELETE
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#endif
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#elif defined(__clang__)
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#if __clang_major__ == 3 && __clang_minor__ <= 8
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#define JSONCPP_TEMPLATE_DELETE
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#endif
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#endif
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#if !defined(JSONCPP_TEMPLATE_DELETE)
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#define JSONCPP_TEMPLATE_DELETE = delete
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#endif
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#endif
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#include <array>
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#include <exception>
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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// Disable warning C4251: <data member>: <type> needs to have dll-interface to
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// be used by...
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#if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
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#pragma warning(push)
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#pragma warning(disable : 4251 4275)
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#endif // if defined(JSONCPP_DISABLE_DLL_INTERFACE_WARNING)
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#pragma pack(push)
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#pragma pack()
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/** \brief JSON (JavaScript Object Notation).
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*/
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namespace Json {
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#if JSON_USE_EXCEPTION
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/** Base class for all exceptions we throw.
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*
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* We use nothing but these internally. Of course, STL can throw others.
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*/
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class JSON_API Exception : public std::exception {
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public:
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Exception(String msg);
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~Exception() noexcept override;
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char const* what() const noexcept override;
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protected:
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String msg_;
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};
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/** Exceptions which the user cannot easily avoid.
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*
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* E.g. out-of-memory (when we use malloc), stack-overflow, malicious input
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*
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* \remark derived from Json::Exception
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*/
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class JSON_API RuntimeError : public Exception {
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public:
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RuntimeError(String const& msg);
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};
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/** Exceptions thrown by JSON_ASSERT/JSON_FAIL macros.
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*
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* These are precondition-violations (user bugs) and internal errors (our bugs).
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*
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* \remark derived from Json::Exception
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*/
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class JSON_API LogicError : public Exception {
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public:
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LogicError(String const& msg);
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};
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#endif
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/// used internally
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JSONCPP_NORETURN void throwRuntimeError(String const& msg);
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/// used internally
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JSONCPP_NORETURN void throwLogicError(String const& msg);
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/** \brief Type of the value held by a Value object.
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*/
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enum ValueType {
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nullValue = 0, ///< 'null' value
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intValue, ///< signed integer value
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uintValue, ///< unsigned integer value
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realValue, ///< double value
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stringValue, ///< UTF-8 string value
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booleanValue, ///< bool value
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arrayValue, ///< array value (ordered list)
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objectValue ///< object value (collection of name/value pairs).
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};
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enum CommentPlacement {
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commentBefore = 0, ///< a comment placed on the line before a value
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commentAfterOnSameLine, ///< a comment just after a value on the same line
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commentAfter, ///< a comment on the line after a value (only make sense for
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/// root value)
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numberOfCommentPlacement
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};
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/** \brief Type of precision for formatting of real values.
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*/
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enum PrecisionType {
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significantDigits = 0, ///< we set max number of significant digits in string
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decimalPlaces ///< we set max number of digits after "." in string
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};
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/** \brief Lightweight wrapper to tag static string.
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*
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* Value constructor and objectValue member assignment takes advantage of the
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* StaticString and avoid the cost of string duplication when storing the
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* string or the member name.
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*
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* Example of usage:
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* \code
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* Json::Value aValue( StaticString("some text") );
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* Json::Value object;
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* static const StaticString code("code");
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* object[code] = 1234;
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* \endcode
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*/
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class JSON_API StaticString {
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public:
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explicit StaticString(const char* czstring) : c_str_(czstring) {}
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operator const char*() const { return c_str_; }
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const char* c_str() const { return c_str_; }
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private:
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const char* c_str_;
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};
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/** \brief Represents a <a HREF="http://www.json.org">JSON</a> value.
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*
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* This class is a discriminated union wrapper that can represents a:
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* - signed integer [range: Value::minInt - Value::maxInt]
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* - unsigned integer (range: 0 - Value::maxUInt)
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* - double
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* - UTF-8 string
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* - boolean
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* - 'null'
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* - an ordered list of Value
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* - collection of name/value pairs (javascript object)
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*
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* The type of the held value is represented by a #ValueType and
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* can be obtained using type().
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*
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* Values of an #objectValue or #arrayValue can be accessed using operator[]()
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* methods.
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* Non-const methods will automatically create the a #nullValue element
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* if it does not exist.
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* The sequence of an #arrayValue will be automatically resized and initialized
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* with #nullValue. resize() can be used to enlarge or truncate an #arrayValue.
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*
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* The get() methods can be used to obtain default value in the case the
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* required element does not exist.
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*
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* It is possible to iterate over the list of member keys of an object using
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* the getMemberNames() method.
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*
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* \note #Value string-length fit in size_t, but keys must be < 2^30.
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* (The reason is an implementation detail.) A #CharReader will raise an
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* exception if a bound is exceeded to avoid security holes in your app,
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* but the Value API does *not* check bounds. That is the responsibility
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* of the caller.
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*/
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class JSON_API Value {
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friend class ValueIteratorBase;
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public:
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using Members = std::vector<String>;
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using iterator = ValueIterator;
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using const_iterator = ValueConstIterator;
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using UInt = Json::UInt;
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using Int = Json::Int;
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#if defined(JSON_HAS_INT64)
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using UInt64 = Json::UInt64;
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using Int64 = Json::Int64;
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#endif // defined(JSON_HAS_INT64)
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using LargestInt = Json::LargestInt;
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using LargestUInt = Json::LargestUInt;
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using ArrayIndex = Json::ArrayIndex;
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// Required for boost integration, e. g. BOOST_TEST
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using value_type = std::string;
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#if JSON_USE_NULLREF
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// Binary compatibility kludges, do not use.
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static const Value& null;
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static const Value& nullRef;
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#endif
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// null and nullRef are deprecated, use this instead.
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static Value const& nullSingleton();
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/// Minimum signed integer value that can be stored in a Json::Value.
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static constexpr LargestInt minLargestInt =
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LargestInt(~(LargestUInt(-1) / 2));
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/// Maximum signed integer value that can be stored in a Json::Value.
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static constexpr LargestInt maxLargestInt = LargestInt(LargestUInt(-1) / 2);
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/// Maximum unsigned integer value that can be stored in a Json::Value.
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static constexpr LargestUInt maxLargestUInt = LargestUInt(-1);
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/// Minimum signed int value that can be stored in a Json::Value.
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static constexpr Int minInt = Int(~(UInt(-1) / 2));
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/// Maximum signed int value that can be stored in a Json::Value.
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static constexpr Int maxInt = Int(UInt(-1) / 2);
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/// Maximum unsigned int value that can be stored in a Json::Value.
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static constexpr UInt maxUInt = UInt(-1);
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#if defined(JSON_HAS_INT64)
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/// Minimum signed 64 bits int value that can be stored in a Json::Value.
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static constexpr Int64 minInt64 = Int64(~(UInt64(-1) / 2));
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/// Maximum signed 64 bits int value that can be stored in a Json::Value.
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static constexpr Int64 maxInt64 = Int64(UInt64(-1) / 2);
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/// Maximum unsigned 64 bits int value that can be stored in a Json::Value.
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static constexpr UInt64 maxUInt64 = UInt64(-1);
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#endif // defined(JSON_HAS_INT64)
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/// Default precision for real value for string representation.
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static constexpr UInt defaultRealPrecision = 17;
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// The constant is hard-coded because some compiler have trouble
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// converting Value::maxUInt64 to a double correctly (AIX/xlC).
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// Assumes that UInt64 is a 64 bits integer.
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static constexpr double maxUInt64AsDouble = 18446744073709551615.0;
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// Workaround for bug in the NVIDIAs CUDA 9.1 nvcc compiler
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// when using gcc and clang backend compilers. CZString
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// cannot be defined as private. See issue #486
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#ifdef __NVCC__
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public:
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#else
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private:
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#endif
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#ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
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class CZString {
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public:
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enum DuplicationPolicy { noDuplication = 0, duplicate, duplicateOnCopy };
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CZString(ArrayIndex index);
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CZString(char const* str, unsigned length, DuplicationPolicy allocate);
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CZString(CZString const& other);
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CZString(CZString&& other) noexcept;
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~CZString();
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CZString& operator=(const CZString& other);
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CZString& operator=(CZString&& other) noexcept;
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bool operator<(CZString const& other) const;
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bool operator==(CZString const& other) const;
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ArrayIndex index() const;
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// const char* c_str() const; ///< \deprecated
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char const* data() const;
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unsigned length() const;
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bool isStaticString() const;
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private:
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void swap(CZString& other);
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struct StringStorage {
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unsigned policy_ : 2;
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unsigned length_ : 30; // 1GB max
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};
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char const* cstr_; // actually, a prefixed string, unless policy is noDup
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union {
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ArrayIndex index_;
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StringStorage storage_;
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};
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};
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public:
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typedef std::map<CZString, Value> ObjectValues;
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#endif // ifndef JSONCPP_DOC_EXCLUDE_IMPLEMENTATION
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public:
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/**
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* \brief Create a default Value of the given type.
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*
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* This is a very useful constructor.
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* To create an empty array, pass arrayValue.
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* To create an empty object, pass objectValue.
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* Another Value can then be set to this one by assignment.
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* This is useful since clear() and resize() will not alter types.
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*
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* Examples:
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* \code
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* Json::Value null_value; // null
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* Json::Value arr_value(Json::arrayValue); // []
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* Json::Value obj_value(Json::objectValue); // {}
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* \endcode
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*/
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Value(ValueType type = nullValue);
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Value(Int value);
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Value(UInt value);
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#if defined(JSON_HAS_INT64)
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Value(Int64 value);
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Value(UInt64 value);
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#endif // if defined(JSON_HAS_INT64)
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Value(double value);
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Value(const char* value); ///< Copy til first 0. (NULL causes to seg-fault.)
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Value(const char* begin, const char* end); ///< Copy all, incl zeroes.
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/**
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* \brief Constructs a value from a static string.
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*
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* Like other value string constructor but do not duplicate the string for
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* internal storage. The given string must remain alive after the call to
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* this constructor.
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*
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* \note This works only for null-terminated strings. (We cannot change the
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* size of this class, so we have nowhere to store the length, which might be
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* computed later for various operations.)
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*
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* Example of usage:
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* \code
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* static StaticString foo("some text");
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* Json::Value aValue(foo);
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* \endcode
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*/
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Value(const StaticString& value);
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Value(const String& value);
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Value(bool value);
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Value(std::nullptr_t ptr) = delete;
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Value(const Value& other);
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Value(Value&& other) noexcept;
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~Value();
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/// \note Overwrite existing comments. To preserve comments, use
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/// #swapPayload().
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Value& operator=(const Value& other);
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Value& operator=(Value&& other) noexcept;
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/// Swap everything.
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void swap(Value& other);
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/// Swap values but leave comments and source offsets in place.
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void swapPayload(Value& other);
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/// copy everything.
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void copy(const Value& other);
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/// copy values but leave comments and source offsets in place.
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void copyPayload(const Value& other);
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ValueType type() const;
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/// Compare payload only, not comments etc.
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bool operator<(const Value& other) const;
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bool operator<=(const Value& other) const;
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bool operator>=(const Value& other) const;
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bool operator>(const Value& other) const;
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bool operator==(const Value& other) const;
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bool operator!=(const Value& other) const;
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int compare(const Value& other) const;
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const char* asCString() const; ///< Embedded zeroes could cause you trouble!
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#if JSONCPP_USE_SECURE_MEMORY
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unsigned getCStringLength() const; // Allows you to understand the length of
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// the CString
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#endif
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String asString() const; ///< Embedded zeroes are possible.
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/** Get raw char* of string-value.
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* \return false if !string. (Seg-fault if str or end are NULL.)
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*/
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bool getString(char const** begin, char const** end) const;
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Int asInt() const;
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UInt asUInt() const;
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#if defined(JSON_HAS_INT64)
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Int64 asInt64() const;
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UInt64 asUInt64() const;
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#endif // if defined(JSON_HAS_INT64)
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LargestInt asLargestInt() const;
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LargestUInt asLargestUInt() const;
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float asFloat() const;
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double asDouble() const;
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bool asBool() const;
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bool isNull() const;
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bool isBool() const;
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bool isInt() const;
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bool isInt64() const;
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bool isUInt() const;
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bool isUInt64() const;
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bool isIntegral() const;
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bool isDouble() const;
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bool isNumeric() const;
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bool isString() const;
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bool isArray() const;
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bool isObject() const;
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/// The `as<T>` and `is<T>` member function templates and specializations.
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template <typename T> T as() const JSONCPP_TEMPLATE_DELETE;
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template <typename T> bool is() const JSONCPP_TEMPLATE_DELETE;
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bool isConvertibleTo(ValueType other) const;
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/// Number of values in array or object
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ArrayIndex size() const;
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/// \brief Return true if empty array, empty object, or null;
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/// otherwise, false.
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bool empty() const;
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/// Return !isNull()
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explicit operator bool() const;
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/// Remove all object members and array elements.
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/// \pre type() is arrayValue, objectValue, or nullValue
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/// \post type() is unchanged
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void clear();
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/// Resize the array to newSize elements.
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/// New elements are initialized to null.
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/// May only be called on nullValue or arrayValue.
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/// \pre type() is arrayValue or nullValue
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/// \post type() is arrayValue
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void resize(ArrayIndex newSize);
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///@{
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/// Access an array element (zero based index). If the array contains less
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/// than index element, then null value are inserted in the array so that
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/// its size is index+1.
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/// (You may need to say 'value[0u]' to get your compiler to distinguish
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/// this from the operator[] which takes a string.)
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Value& operator[](ArrayIndex index);
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Value& operator[](int index);
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///@}
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///@{
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|
/// Access an array element (zero based index).
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|
/// (You may need to say 'value[0u]' to get your compiler to distinguish
|
|
/// this from the operator[] which takes a string.)
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|
const Value& operator[](ArrayIndex index) const;
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const Value& operator[](int index) const;
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///@}
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/// If the array contains at least index+1 elements, returns the element
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|
/// value, otherwise returns defaultValue.
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Value get(ArrayIndex index, const Value& defaultValue) const;
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|
/// Return true if index < size().
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bool isValidIndex(ArrayIndex index) const;
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|
/// \brief Append value to array at the end.
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|
///
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|
/// Equivalent to jsonvalue[jsonvalue.size()] = value;
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|
Value& append(const Value& value);
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|
Value& append(Value&& value);
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|
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/// \brief Insert value in array at specific index
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|
bool insert(ArrayIndex index, const Value& newValue);
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|
bool insert(ArrayIndex index, Value&& newValue);
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|
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/// Access an object value by name, create a null member if it does not exist.
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|
/// \note Because of our implementation, keys are limited to 2^30 -1 chars.
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/// 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
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/// that name.
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|
const Value& operator[](const char* key) const;
|
|
/// Access an object value by name, create a null member if it does not exist.
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|
/// \param key may contain embedded nulls.
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|
Value& operator[](const String& key);
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|
/// Access an object value by name, returns null if there is no member with
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/// that name.
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|
/// \param key may contain embedded nulls.
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|
const Value& operator[](const String& key) const;
|
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/** \brief Access an object value by name, create a null member if it does not
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* exist.
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*
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|
* If the object has no entry for that name, then the member name used to
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|
* store the new entry is not duplicated.
|
|
* Example of use:
|
|
* \code
|
|
* Json::Value object;
|
|
* static const StaticString code("code");
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|
* object[code] = 1234;
|
|
* \endcode
|
|
*/
|
|
Value& operator[](const StaticString& key);
|
|
/// 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 String& key, const Value& defaultValue) const;
|
|
/// 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 isMember()const, get()const,
|
|
/// and operator[]const
|
|
Value const* find(const String& key) 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* demand(char const* begin, char const* end);
|
|
/// \brief Remove and return the named member.
|
|
///
|
|
/// Do nothing if it did not exist.
|
|
/// \pre type() is objectValue or nullValue
|
|
/// \post type() is unchanged
|
|
void removeMember(const char* key);
|
|
/// Same as removeMember(const char*)
|
|
/// \param key may contain embedded nulls.
|
|
void removeMember(const 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(String const& key, Value* removed);
|
|
/// Same as removeMember(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 if removed (no exceptions)
|
|
*/
|
|
bool removeIndex(ArrayIndex index, 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 String& key) const;
|
|
/// Same as isMember(String const& key)const
|
|
bool isMember(const char* begin, const char* end) const;
|
|
|
|
/// \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;
|
|
|
|
/// \deprecated Always pass len.
|
|
JSONCPP_DEPRECATED("Use setComment(String const&) instead.")
|
|
void setComment(const char* comment, CommentPlacement placement) {
|
|
setComment(String(comment, strlen(comment)), placement);
|
|
}
|
|
/// Comments must be //... or /* ... */
|
|
void setComment(const char* comment, size_t len, CommentPlacement placement) {
|
|
setComment(String(comment, len), placement);
|
|
}
|
|
/// Comments must be //... or /* ... */
|
|
void setComment(String comment, CommentPlacement placement);
|
|
bool hasComment(CommentPlacement placement) const;
|
|
/// Include delimiters and embedded newlines.
|
|
String getComment(CommentPlacement placement) const;
|
|
|
|
String toStyledString() const;
|
|
|
|
const_iterator begin() const;
|
|
const_iterator end() const;
|
|
|
|
iterator begin();
|
|
iterator end();
|
|
|
|
/// \brief Returns a reference to the first element in the `Value`.
|
|
/// Requires that this value holds an array or json object, with at least one
|
|
/// element.
|
|
const Value& front() const;
|
|
|
|
/// \brief Returns a reference to the first element in the `Value`.
|
|
/// Requires that this value holds an array or json object, with at least one
|
|
/// element.
|
|
Value& front();
|
|
|
|
/// \brief Returns a reference to the last element in the `Value`.
|
|
/// Requires that value holds an array or json object, with at least one
|
|
/// element.
|
|
const Value& back() const;
|
|
|
|
/// \brief Returns a reference to the last element in the `Value`.
|
|
/// Requires that this value holds an array or json object, with at least one
|
|
/// element.
|
|
Value& back();
|
|
|
|
// 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 setType(ValueType v) {
|
|
bits_.value_type_ = static_cast<unsigned char>(v);
|
|
}
|
|
bool isAllocated() const { return bits_.allocated_; }
|
|
void setIsAllocated(bool v) { bits_.allocated_ = v; }
|
|
|
|
void initBasic(ValueType type, bool allocated = false);
|
|
void dupPayload(const Value& other);
|
|
void releasePayload();
|
|
void dupMeta(const Value& other);
|
|
|
|
Value& resolveReference(const char* key);
|
|
Value& resolveReference(const char* key, const char* end);
|
|
|
|
// 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_; // if allocated_, ptr to { unsigned, char[] }.
|
|
ObjectValues* map_;
|
|
} value_;
|
|
|
|
struct {
|
|
// Really a ValueType, but types should agree for bitfield packing.
|
|
unsigned int value_type_ : 8;
|
|
// Unless allocated_, string_ must be null-terminated.
|
|
unsigned int allocated_ : 1;
|
|
} bits_;
|
|
|
|
class Comments {
|
|
public:
|
|
Comments() = default;
|
|
Comments(const Comments& that);
|
|
Comments(Comments&& that) noexcept;
|
|
Comments& operator=(const Comments& that);
|
|
Comments& operator=(Comments&& that) noexcept;
|
|
bool has(CommentPlacement slot) const;
|
|
String get(CommentPlacement slot) const;
|
|
void set(CommentPlacement slot, String comment);
|
|
|
|
private:
|
|
using Array = std::array<String, numberOfCommentPlacement>;
|
|
std::unique_ptr<Array> ptr_;
|
|
};
|
|
Comments comments_;
|
|
|
|
// [start, limit) byte offsets in the source JSON text from which this Value
|
|
// was extracted.
|
|
ptrdiff_t start_;
|
|
ptrdiff_t limit_;
|
|
};
|
|
|
|
template <> inline bool Value::as<bool>() const { return asBool(); }
|
|
template <> inline bool Value::is<bool>() const { return isBool(); }
|
|
|
|
template <> inline Int Value::as<Int>() const { return asInt(); }
|
|
template <> inline bool Value::is<Int>() const { return isInt(); }
|
|
|
|
template <> inline UInt Value::as<UInt>() const { return asUInt(); }
|
|
template <> inline bool Value::is<UInt>() const { return isUInt(); }
|
|
|
|
#if defined(JSON_HAS_INT64)
|
|
template <> inline Int64 Value::as<Int64>() const { return asInt64(); }
|
|
template <> inline bool Value::is<Int64>() const { return isInt64(); }
|
|
|
|
template <> inline UInt64 Value::as<UInt64>() const { return asUInt64(); }
|
|
template <> inline bool Value::is<UInt64>() const { return isUInt64(); }
|
|
#endif
|
|
|
|
template <> inline double Value::as<double>() const { return asDouble(); }
|
|
template <> inline bool Value::is<double>() const { return isDouble(); }
|
|
|
|
template <> inline String Value::as<String>() const { return asString(); }
|
|
template <> inline bool Value::is<String>() const { return isString(); }
|
|
|
|
/// These `as` specializations are type conversions, and do not have a
|
|
/// corresponding `is`.
|
|
template <> inline float Value::as<float>() const { return asFloat(); }
|
|
template <> inline const char* Value::as<const char*>() const {
|
|
return asCString();
|
|
}
|
|
|
|
/** \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(String key);
|
|
|
|
private:
|
|
enum Kind { kindNone = 0, kindIndex, kindKey };
|
|
String key_;
|
|
ArrayIndex index_{};
|
|
Kind kind_{kindNone};
|
|
};
|
|
|
|
/** \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 provided as parameter
|
|
*/
|
|
class JSON_API Path {
|
|
public:
|
|
Path(const 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:
|
|
using InArgs = std::vector<const PathArgument*>;
|
|
using Args = std::vector<PathArgument>;
|
|
|
|
void makePath(const String& path, const InArgs& in);
|
|
void addPathInArg(const String& path, const InArgs& in,
|
|
InArgs::const_iterator& itInArg, PathArgument::Kind kind);
|
|
static void invalidPath(const String& path, int location);
|
|
|
|
Args args_;
|
|
};
|
|
|
|
/** \brief base class for Value iterators.
|
|
*
|
|
*/
|
|
class JSON_API ValueIteratorBase {
|
|
public:
|
|
using iterator_category = std::bidirectional_iterator_tag;
|
|
using size_t = unsigned int;
|
|
using difference_type = int;
|
|
using SelfType = ValueIteratorBase;
|
|
|
|
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.
|
|
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:
|
|
/*! Internal utility functions to assist with implementing
|
|
* other iterator functions. The const and non-const versions
|
|
* of the "deref" protected methods expose the protected
|
|
* current_ member variable in a way that can often be
|
|
* optimized away by the compiler.
|
|
*/
|
|
const Value& deref() const;
|
|
Value& deref();
|
|
|
|
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_{true};
|
|
|
|
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:
|
|
using value_type = const Value;
|
|
// typedef unsigned int size_t;
|
|
// typedef int difference_type;
|
|
using reference = const Value&;
|
|
using pointer = const Value*;
|
|
using SelfType = ValueConstIterator;
|
|
|
|
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:
|
|
using value_type = Value;
|
|
using size_t = unsigned int;
|
|
using difference_type = int;
|
|
using reference = Value&;
|
|
using pointer = Value*;
|
|
using SelfType = ValueIterator;
|
|
|
|
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;
|
|
}
|
|
|
|
/*! The return value of non-const iterators can be
|
|
* changed, so the these functions are not const
|
|
* because the returned references/pointers can be used
|
|
* to change state of the base class.
|
|
*/
|
|
reference operator*() const { return const_cast<reference>(deref()); }
|
|
pointer operator->() const { return const_cast<pointer>(&deref()); }
|
|
};
|
|
|
|
inline void swap(Value& a, Value& b) { a.swap(b); }
|
|
|
|
inline const Value& Value::front() const { return *begin(); }
|
|
|
|
inline Value& Value::front() { return *begin(); }
|
|
|
|
inline const Value& Value::back() const { return *(--end()); }
|
|
|
|
inline Value& Value::back() { return *(--end()); }
|
|
|
|
} // 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_H_INCLUDED
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// End of content of file: include/json/value.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// Beginning of content of file: include/json/reader.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
// 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_READER_H_INCLUDED
|
|
#define JSON_READER_H_INCLUDED
|
|
|
|
#if !defined(JSON_IS_AMALGAMATION)
|
|
#include "json_features.h"
|
|
#include "value.h"
|
|
#endif // if !defined(JSON_IS_AMALGAMATION)
|
|
#include <deque>
|
|
#include <iosfwd>
|
|
#include <istream>
|
|
#include <stack>
|
|
#include <string>
|
|
|
|
// 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)
|
|
#pragma pack()
|
|
|
|
namespace Json {
|
|
|
|
/** \brief Unserialize a <a HREF="http://www.json.org">JSON</a> document into a
|
|
* Value.
|
|
*
|
|
* \deprecated Use CharReader and CharReaderBuilder.
|
|
*/
|
|
|
|
class JSON_API Reader {
|
|
public:
|
|
using Char = char;
|
|
using Location = const Char*;
|
|
|
|
/** \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;
|
|
String message;
|
|
};
|
|
|
|
/** \brief Constructs a Reader allowing all features for parsing.
|
|
* \deprecated Use CharReader and CharReaderBuilder.
|
|
*/
|
|
Reader();
|
|
|
|
/** \brief Constructs a Reader allowing the specified feature set for parsing.
|
|
* \deprecated Use CharReader and CharReaderBuilder.
|
|
*/
|
|
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[out] root 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[out] root 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(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.")
|
|
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.
|
|
*/
|
|
String getFormattedErrorMessages() const;
|
|
|
|
/** \brief Returns a vector of structured errors encountered 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 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 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_;
|
|
String message_;
|
|
Location extra_;
|
|
};
|
|
|
|
using Errors = std::deque<ErrorInfo>;
|
|
|
|
bool readToken(Token& token);
|
|
bool readTokenSkippingComments(Token& token);
|
|
void skipSpaces();
|
|
bool match(const Char* 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, 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 String& message, Token& token, Location extra = nullptr);
|
|
bool recoverFromError(TokenType skipUntilToken);
|
|
bool addErrorAndRecover(const String& message, Token& token,
|
|
TokenType skipUntilToken);
|
|
void skipUntilSpace();
|
|
Value& currentValue();
|
|
Char getNextChar();
|
|
void getLocationLineAndColumn(Location location, int& line,
|
|
int& column) const;
|
|
String getLocationLineAndColumn(Location location) const;
|
|
void addComment(Location begin, Location end, CommentPlacement placement);
|
|
|
|
static bool containsNewLine(Location begin, Location end);
|
|
static String normalizeEOL(Location begin, Location end);
|
|
|
|
using Nodes = std::stack<Value*>;
|
|
Nodes nodes_;
|
|
Errors errors_;
|
|
String document_;
|
|
Location begin_{};
|
|
Location end_{};
|
|
Location current_{};
|
|
Location lastValueEnd_{};
|
|
Value* lastValue_{};
|
|
String commentsBefore_;
|
|
Features features_;
|
|
bool collectComments_{};
|
|
}; // Reader
|
|
|
|
/** Interface for reading JSON from a char array.
|
|
*/
|
|
class JSON_API CharReader {
|
|
public:
|
|
struct JSON_API StructuredError {
|
|
ptrdiff_t offset_start;
|
|
ptrdiff_t offset_limit;
|
|
String message;
|
|
};
|
|
|
|
virtual ~CharReader() = default;
|
|
/** \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[out] root Contains the root value of the document if it was
|
|
* successfully parsed.
|
|
* \param[out] errs 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,
|
|
String* errs);
|
|
|
|
/** \brief Returns a vector of structured errors encountered while parsing.
|
|
* Each parse call resets the stored list of errors.
|
|
*/
|
|
std::vector<StructuredError> getStructuredErrors() const;
|
|
|
|
class JSON_API Factory {
|
|
public:
|
|
virtual ~Factory() = default;
|
|
/** \brief Allocate a CharReader via operator new().
|
|
* \throw std::exception if something goes wrong (e.g. invalid settings)
|
|
*/
|
|
virtual CharReader* newCharReader() const = 0;
|
|
}; // Factory
|
|
|
|
protected:
|
|
class Impl {
|
|
public:
|
|
virtual ~Impl() = default;
|
|
virtual bool parse(char const* beginDoc, char const* endDoc, Value* root,
|
|
String* errs) = 0;
|
|
virtual std::vector<StructuredError> getStructuredErrors() const = 0;
|
|
};
|
|
|
|
explicit CharReader(std::unique_ptr<Impl> impl) : _impl(std::move(impl)) {}
|
|
|
|
private:
|
|
std::unique_ptr<Impl> _impl;
|
|
}; // CharReader
|
|
|
|
/** \brief Build a CharReader implementation.
|
|
*
|
|
* Usage:
|
|
* \code
|
|
* using namespace Json;
|
|
* CharReaderBuilder builder;
|
|
* builder["collectComments"] = false;
|
|
* Value value;
|
|
* 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.
|
|
* - `"allowTrailingCommas": false or true`
|
|
* - true if trailing commas in objects and arrays 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.
|
|
* - `"skipBom": false or true`
|
|
* - If true, if the input starts with the Unicode byte order mark (BOM),
|
|
* it is skipped.
|
|
*
|
|
* 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() override;
|
|
|
|
CharReader* newCharReader() const 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[](const 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);
|
|
/** ECMA-404 mode.
|
|
* \pre 'settings' != NULL (but Json::null is fine)
|
|
* \remark Defaults:
|
|
* \snippet src/lib_json/json_reader.cpp CharReaderBuilderECMA404Mode
|
|
*/
|
|
static void ecma404Mode(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&, IStream&, Value* root,
|
|
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 IStream& operator>>(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 // JSON_READER_H_INCLUDED
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// End of content of file: include/json/reader.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// Beginning of content of file: include/json/writer.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
// 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 <ostream>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
// 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)
|
|
#pragma pack()
|
|
|
|
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:
|
|
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, 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.
|
|
*/
|
|
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>".
|
|
* - Setting this to an empty string also omits newline characters.
|
|
* - "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".
|
|
* - "precision": int
|
|
* - Number of precision digits for formatting of real values.
|
|
* - "precisionType": "significant"(default) or "decimal"
|
|
* - Type of precision for formatting of real values.
|
|
* - "emitUTF8": false or true
|
|
* - If true, outputs raw UTF8 strings instead of escaping them.
|
|
|
|
* 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() override;
|
|
|
|
/**
|
|
* \throw std::exception if something goes wrong (e.g. invalid settings)
|
|
*/
|
|
StreamWriter* newStreamWriter() const 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[](const 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 JSON_API Writer {
|
|
public:
|
|
virtual ~Writer();
|
|
|
|
virtual 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 useful to support feature such as RPC where bandwidth 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 JSON_API FastWriter : public Writer {
|
|
public:
|
|
FastWriter();
|
|
~FastWriter() override = default;
|
|
|
|
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
|
|
String write(const Value& root) override;
|
|
|
|
private:
|
|
void writeValue(const Value& value);
|
|
|
|
String document_;
|
|
bool yamlCompatibilityEnabled_{false};
|
|
bool dropNullPlaceholders_{false};
|
|
bool omitEndingLineFeed_{false};
|
|
};
|
|
#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 outputted 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 JSON_API StyledWriter : public Writer {
|
|
public:
|
|
StyledWriter();
|
|
~StyledWriter() override = default;
|
|
|
|
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.
|
|
*/
|
|
String write(const Value& root) override;
|
|
|
|
private:
|
|
void writeValue(const Value& value);
|
|
void writeArrayValue(const Value& value);
|
|
bool isMultilineArray(const Value& value);
|
|
void pushValue(const String& value);
|
|
void writeIndent();
|
|
void writeWithIndent(const String& value);
|
|
void indent();
|
|
void unindent();
|
|
void writeCommentBeforeValue(const Value& root);
|
|
void writeCommentAfterValueOnSameLine(const Value& root);
|
|
static bool hasCommentForValue(const Value& value);
|
|
static String normalizeEOL(const String& text);
|
|
|
|
using ChildValues = std::vector<String>;
|
|
|
|
ChildValues childValues_;
|
|
String document_;
|
|
String indentString_;
|
|
unsigned int rightMargin_{74};
|
|
unsigned int indentSize_{3};
|
|
bool addChildValues_{false};
|
|
};
|
|
#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 outputted 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 JSON_API StyledStreamWriter {
|
|
public:
|
|
/**
|
|
* \param indentation Each level will be indented by this amount extra.
|
|
*/
|
|
StyledStreamWriter(String indentation = "\t");
|
|
~StyledStreamWriter() = default;
|
|
|
|
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(OStream& out, const Value& root);
|
|
|
|
private:
|
|
void writeValue(const Value& value);
|
|
void writeArrayValue(const Value& value);
|
|
bool isMultilineArray(const Value& value);
|
|
void pushValue(const String& value);
|
|
void writeIndent();
|
|
void writeWithIndent(const String& value);
|
|
void indent();
|
|
void unindent();
|
|
void writeCommentBeforeValue(const Value& root);
|
|
void writeCommentAfterValueOnSameLine(const Value& root);
|
|
static bool hasCommentForValue(const Value& value);
|
|
static String normalizeEOL(const String& text);
|
|
|
|
using ChildValues = std::vector<String>;
|
|
|
|
ChildValues childValues_;
|
|
OStream* document_;
|
|
String indentString_;
|
|
unsigned int rightMargin_{74};
|
|
String indentation_;
|
|
bool addChildValues_ : 1;
|
|
bool indented_ : 1;
|
|
};
|
|
#if defined(_MSC_VER)
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#if defined(JSON_HAS_INT64)
|
|
String JSON_API valueToString(Int value);
|
|
String JSON_API valueToString(UInt value);
|
|
#endif // if defined(JSON_HAS_INT64)
|
|
String JSON_API valueToString(LargestInt value);
|
|
String JSON_API valueToString(LargestUInt value);
|
|
String JSON_API valueToString(
|
|
double value, unsigned int precision = Value::defaultRealPrecision,
|
|
PrecisionType precisionType = PrecisionType::significantDigits);
|
|
String JSON_API valueToString(bool value);
|
|
String JSON_API valueToQuotedString(const char* value);
|
|
String JSON_API valueToQuotedString(const char* value, size_t length);
|
|
|
|
/// \brief Output using the StyledStreamWriter.
|
|
/// \see Json::operator>>()
|
|
JSON_API OStream& operator<<(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
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// End of content of file: include/json/writer.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// Beginning of content of file: include/json/assertions.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
// 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_ASSERTIONS_H_INCLUDED
|
|
#define JSON_ASSERTIONS_H_INCLUDED
|
|
|
|
#include <cstdlib>
|
|
#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) \
|
|
do { \
|
|
if (!(condition)) { \
|
|
Json::throwLogicError("assert json failed"); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define JSON_FAIL_MESSAGE(message) \
|
|
do { \
|
|
OStringStream oss; \
|
|
oss << message; \
|
|
Json::throwLogicError(oss.str()); \
|
|
abort(); \
|
|
} while (0)
|
|
|
|
#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) \
|
|
{ \
|
|
OStringStream oss; \
|
|
oss << message; \
|
|
assert(false && oss.str().c_str()); \
|
|
abort(); \
|
|
}
|
|
|
|
#endif
|
|
|
|
#define JSON_ASSERT_MESSAGE(condition, message) \
|
|
do { \
|
|
if (!(condition)) { \
|
|
JSON_FAIL_MESSAGE(message); \
|
|
} \
|
|
} while (0)
|
|
|
|
#endif // JSON_ASSERTIONS_H_INCLUDED
|
|
|
|
// //////////////////////////////////////////////////////////////////////
|
|
// End of content of file: include/json/assertions.h
|
|
// //////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
|
|
|
|
|
|
#endif //ifndef JSON_AMALGAMATED_H_INCLUDED
|