mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-26 22:57:00 +02:00
cf4b3c91cb
- found situation where JsonNode parser won't report warning: comma after last element in arrays or objects. Fixed this in our config files but parser change is disabled for now due to huge number of warnings from mods.
1630 lines
40 KiB
C++
1630 lines
40 KiB
C++
/*
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* JsonNode.cpp, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#include "StdInc.h"
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#include "JsonNode.h"
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#include "ScopeGuard.h"
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#include "HeroBonus.h"
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#include "filesystem/Filesystem.h"
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#include "VCMI_Lib.h" //for identifier resolution
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#include "CModHandler.h"
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using namespace JsonDetail;
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class LibClasses;
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class CModHandler;
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static const JsonNode nullNode;
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JsonNode::JsonNode(JsonType Type):
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type(DATA_NULL)
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{
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setType(Type);
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}
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JsonNode::JsonNode(const char *data, size_t datasize):
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type(DATA_NULL)
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{
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JsonParser parser(data, datasize);
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*this = parser.parse("<unknown>");
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}
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JsonNode::JsonNode(ResourceID && fileURI):
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type(DATA_NULL)
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{
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auto file = CResourceHandler::get()->load(fileURI)->readAll();
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JsonParser parser(reinterpret_cast<char*>(file.first.get()), file.second);
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*this = parser.parse(fileURI.getName());
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}
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JsonNode::JsonNode(const JsonNode ©):
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type(DATA_NULL)
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{
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meta = copy.meta;
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setType(copy.getType());
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switch(type)
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{
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break; case DATA_NULL:
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break; case DATA_BOOL: Bool() = copy.Bool();
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break; case DATA_FLOAT: Float() = copy.Float();
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break; case DATA_STRING: String() = copy.String();
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break; case DATA_VECTOR: Vector() = copy.Vector();
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break; case DATA_STRUCT: Struct() = copy.Struct();
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}
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}
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JsonNode::~JsonNode()
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{
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setType(DATA_NULL);
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}
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void JsonNode::swap(JsonNode &b)
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{
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using std::swap;
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swap(meta, b.meta);
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swap(data, b.data);
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swap(type, b.type);
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}
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JsonNode & JsonNode::operator =(JsonNode node)
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{
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swap(node);
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return *this;
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}
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bool JsonNode::operator == (const JsonNode &other) const
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{
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if (getType() == other.getType())
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{
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switch(type)
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{
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break; case DATA_NULL: return true;
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break; case DATA_BOOL: return Bool() == other.Bool();
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break; case DATA_FLOAT: return Float() == other.Float();
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break; case DATA_STRING: return String() == other.String();
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break; case DATA_VECTOR: return Vector() == other.Vector();
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break; case DATA_STRUCT: return Struct() == other.Struct();
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}
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}
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return false;
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}
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bool JsonNode::operator != (const JsonNode &other) const
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{
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return !(*this == other);
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}
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JsonNode::JsonType JsonNode::getType() const
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{
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return type;
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}
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void JsonNode::setMeta(std::string metadata, bool recursive)
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{
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meta = metadata;
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if (recursive)
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{
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switch (type)
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{
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break; case DATA_VECTOR:
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{
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for(auto & node : Vector())
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{
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node.setMeta(metadata);
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}
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}
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break; case DATA_STRUCT:
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{
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for(auto & node : Struct())
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{
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node.second.setMeta(metadata);
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}
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}
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}
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}
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}
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void JsonNode::setType(JsonType Type)
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{
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if (type == Type)
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return;
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//Reset node to nullptr
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if (Type != DATA_NULL)
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setType(DATA_NULL);
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switch (type)
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{
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break; case DATA_STRING: delete data.String;
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break; case DATA_VECTOR: delete data.Vector;
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break; case DATA_STRUCT: delete data.Struct;
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break; default:
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break;
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}
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//Set new node type
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type = Type;
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switch(type)
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{
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break; case DATA_NULL:
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break; case DATA_BOOL: data.Bool = false;
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break; case DATA_FLOAT: data.Float = 0;
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break; case DATA_STRING: data.String = new std::string();
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break; case DATA_VECTOR: data.Vector = new JsonVector();
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break; case DATA_STRUCT: data.Struct = new JsonMap();
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}
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}
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bool JsonNode::isNull() const
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{
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return type == DATA_NULL;
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}
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void JsonNode::clear()
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{
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setType(DATA_NULL);
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}
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bool & JsonNode::Bool()
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{
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setType(DATA_BOOL);
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return data.Bool;
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}
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double & JsonNode::Float()
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{
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setType(DATA_FLOAT);
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return data.Float;
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}
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std::string & JsonNode::String()
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{
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setType(DATA_STRING);
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return *data.String;
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}
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JsonVector & JsonNode::Vector()
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{
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setType(DATA_VECTOR);
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return *data.Vector;
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}
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JsonMap & JsonNode::Struct()
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{
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setType(DATA_STRUCT);
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return *data.Struct;
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}
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const bool boolDefault = false;
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const bool & JsonNode::Bool() const
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{
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if (type == DATA_NULL)
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return boolDefault;
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assert(type == DATA_BOOL);
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return data.Bool;
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}
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const double floatDefault = 0;
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const double & JsonNode::Float() const
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{
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if (type == DATA_NULL)
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return floatDefault;
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assert(type == DATA_FLOAT);
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return data.Float;
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}
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const std::string stringDefault = std::string();
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const std::string & JsonNode::String() const
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{
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if (type == DATA_NULL)
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return stringDefault;
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assert(type == DATA_STRING);
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return *data.String;
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}
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const JsonVector vectorDefault = JsonVector();
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const JsonVector & JsonNode::Vector() const
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{
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if (type == DATA_NULL)
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return vectorDefault;
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assert(type == DATA_VECTOR);
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return *data.Vector;
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}
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const JsonMap mapDefault = JsonMap();
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const JsonMap & JsonNode::Struct() const
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{
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if (type == DATA_NULL)
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return mapDefault;
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assert(type == DATA_STRUCT);
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return *data.Struct;
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}
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JsonNode & JsonNode::operator[](std::string child)
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{
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return Struct()[child];
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}
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const JsonNode & JsonNode::operator[](std::string child) const
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{
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auto it = Struct().find(child);
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if (it != Struct().end())
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return it->second;
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return nullNode;
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}
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// to avoid duplicating const and non-const code
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template<typename Node>
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Node & resolvePointer(Node & in, const std::string & pointer)
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{
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if (pointer.empty())
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return in;
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assert(pointer[0] == '/');
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size_t splitPos = pointer.find('/', 1);
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std::string entry = pointer.substr(1, splitPos -1);
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std::string remainer = splitPos == std::string::npos ? "" : pointer.substr(splitPos);
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if (in.getType() == JsonNode::DATA_VECTOR)
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{
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if (entry.find_first_not_of("0123456789") != std::string::npos) // non-numbers in string
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throw std::runtime_error("Invalid Json pointer");
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if (entry.size() > 1 && entry[0] == '0') // leading zeros are not allowed
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throw std::runtime_error("Invalid Json pointer");
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size_t index = boost::lexical_cast<size_t>(entry);
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if (in.Vector().size() > index)
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return in.Vector()[index].resolvePointer(remainer);
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}
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return in[entry].resolvePointer(remainer);
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}
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const JsonNode & JsonNode::resolvePointer(const std::string &jsonPointer) const
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{
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return ::resolvePointer(*this, jsonPointer);
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}
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JsonNode & JsonNode::resolvePointer(const std::string &jsonPointer)
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{
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return ::resolvePointer(*this, jsonPointer);
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}
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////////////////////////////////////////////////////////////////////////////////
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template<typename Iterator>
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void JsonWriter::writeContainer(Iterator begin, Iterator end)
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{
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if (begin == end)
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return;
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prefix += '\t';
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writeEntry(begin++);
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while (begin != end)
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{
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out<<",\n";
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writeEntry(begin++);
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}
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out<<"\n";
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prefix.resize(prefix.size()-1);
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}
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void JsonWriter::writeEntry(JsonMap::const_iterator entry)
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{
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out << prefix;
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writeString(entry->first);
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out << " : ";
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writeNode(entry->second);
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}
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void JsonWriter::writeEntry(JsonVector::const_iterator entry)
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{
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out << prefix;
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writeNode(*entry);
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}
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void JsonWriter::writeString(const std::string &string)
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{
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static const std::string escaped = "\"\\\b\f\n\r\t";
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out <<'\"';
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size_t pos=0, start=0;
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for (; pos<string.size(); pos++)
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{
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size_t escapedChar = escaped.find(string[pos]);
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if (escapedChar != std::string::npos)
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{
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out.write(string.data()+start, pos - start);
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out << '\\' << escaped[escapedChar];
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start = pos;
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}
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}
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out.write(string.data()+start, pos - start);
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out <<'\"';
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}
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void JsonWriter::writeNode(const JsonNode &node)
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{
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switch(node.getType())
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{
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break; case JsonNode::DATA_NULL:
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out << "null";
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break; case JsonNode::DATA_BOOL:
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if (node.Bool())
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out << "true";
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else
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out << "false";
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break; case JsonNode::DATA_FLOAT:
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out << node.Float();
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break; case JsonNode::DATA_STRING:
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writeString(node.String());
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break; case JsonNode::DATA_VECTOR:
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out << "[" << "\n";
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writeContainer(node.Vector().begin(), node.Vector().end());
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out << prefix << "]";
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break; case JsonNode::DATA_STRUCT:
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out << "{" << "\n";
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writeContainer(node.Struct().begin(), node.Struct().end());
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out << prefix << "}";
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}
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if (!node.meta.empty()) // write metainf as comment
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out << " //" << node.meta;
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}
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JsonWriter::JsonWriter(std::ostream &output, const JsonNode &node):
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out(output)
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{
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writeNode(node);
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}
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std::ostream & operator<<(std::ostream &out, const JsonNode &node)
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{
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JsonWriter(out, node);
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return out << "\n";
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}
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////////////////////////////////////////////////////////////////////////////////
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JsonParser::JsonParser(const char * inputString, size_t stringSize):
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input(inputString, stringSize),
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lineCount(1),
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lineStart(0),
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pos(0)
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{
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}
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JsonNode JsonParser::parse(std::string fileName)
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{
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JsonNode root;
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extractValue(root);
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extractWhitespace(false);
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//Warn if there are any non-whitespace symbols left
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if (pos < input.size())
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error("Not all file was parsed!", true);
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if (!errors.empty())
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{
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logGlobal->warnStream()<<"File " << fileName << " is not a valid JSON file!";
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logGlobal->warnStream()<<errors;
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}
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return root;
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}
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bool JsonParser::extractSeparator()
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{
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if (!extractWhitespace())
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return false;
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if ( input[pos] !=':')
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return error("Separator expected");
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pos++;
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return true;
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}
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bool JsonParser::extractValue(JsonNode &node)
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{
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if (!extractWhitespace())
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return false;
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switch (input[pos])
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{
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case '\"': return extractString(node);
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case 'n' : return extractNull(node);
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case 't' : return extractTrue(node);
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case 'f' : return extractFalse(node);
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case '{' : return extractStruct(node);
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case '[' : return extractArray(node);
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case '-' : return extractFloat(node);
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default:
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{
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if (input[pos] >= '0' && input[pos] <= '9')
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return extractFloat(node);
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return error("Value expected!");
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}
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}
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}
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bool JsonParser::extractWhitespace(bool verbose)
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{
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while (true)
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{
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while (pos < input.size() && (ui8)input[pos] <= ' ')
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{
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if (input[pos] == '\n')
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{
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lineCount++;
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lineStart = pos+1;
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}
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pos++;
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}
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if (pos >= input.size() || input[pos] != '/')
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break;
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pos++;
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if (pos == input.size())
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break;
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if (input[pos] == '/')
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pos++;
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else
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error("Comments must consist from two slashes!", true);
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while (pos < input.size() && input[pos] != '\n')
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pos++;
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}
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if (pos >= input.size() && verbose)
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return error("Unexpected end of file!");
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return true;
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}
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bool JsonParser::extractEscaping(std::string &str)
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{
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switch(input[pos])
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{
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break; case '\"': str += '\"';
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break; case '\\': str += '\\';
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break; case 'b': str += '\b';
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break; case 'f': str += '\f';
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break; case 'n': str += '\n';
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break; case 'r': str += '\r';
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break; case 't': str += '\t';
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break; default: return error("Unknown escape sequence!", true);
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};
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return true;
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}
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bool JsonParser::extractString(std::string &str)
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{
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if (input[pos] != '\"')
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return error("String expected!");
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pos++;
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size_t first = pos;
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while (pos != input.size())
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{
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if (input[pos] == '\"') // Correct end of string
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{
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str.append( &input[first], pos-first);
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pos++;
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return true;
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}
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if (input[pos] == '\\') // Escaping
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{
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str.append( &input[first], pos-first);
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pos++;
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if (pos == input.size())
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break;
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extractEscaping(str);
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first = pos + 1;
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}
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if (input[pos] == '\n') // end-of-line
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{
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str.append( &input[first], pos-first);
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return error("Closing quote not found!", true);
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}
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if ((unsigned char)(input[pos]) < ' ') // control character
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{
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str.append( &input[first], pos-first);
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first = pos+1;
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error("Illegal character in the string!", true);
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}
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pos++;
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}
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return error("Unterminated string!");
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}
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bool JsonParser::extractString(JsonNode &node)
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{
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std::string str;
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if (!extractString(str))
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return false;
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node.setType(JsonNode::DATA_STRING);
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node.String() = str;
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return true;
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}
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bool JsonParser::extractLiteral(const std::string &literal)
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{
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if (literal.compare(0, literal.size(), &input[pos], literal.size()) != 0)
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{
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while (pos < input.size() && ((input[pos]>'a' && input[pos]<'z')
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|| (input[pos]>'A' && input[pos]<'Z')))
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pos++;
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return error("Unknown literal found", true);
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}
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pos += literal.size();
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return true;
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}
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bool JsonParser::extractNull(JsonNode &node)
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{
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if (!extractLiteral("null"))
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return false;
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node.clear();
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return true;
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}
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bool JsonParser::extractTrue(JsonNode &node)
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{
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if (!extractLiteral("true"))
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return false;
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node.Bool() = true;
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return true;
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}
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bool JsonParser::extractFalse(JsonNode &node)
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{
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if (!extractLiteral("false"))
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return false;
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node.Bool() = false;
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return true;
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}
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|
|
bool JsonParser::extractStruct(JsonNode &node)
|
|
{
|
|
node.setType(JsonNode::DATA_STRUCT);
|
|
pos++;
|
|
|
|
if (!extractWhitespace())
|
|
return false;
|
|
|
|
//Empty struct found
|
|
if (input[pos] == '}')
|
|
{
|
|
pos++;
|
|
return true;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
if (!extractWhitespace())
|
|
return false;
|
|
|
|
std::string key;
|
|
if (!extractString(key))
|
|
return false;
|
|
|
|
if (node.Struct().find(key) != node.Struct().end())
|
|
error("Dublicated element encountered!", true);
|
|
|
|
if (!extractSeparator())
|
|
return false;
|
|
|
|
if (!extractElement(node.Struct()[key], '}'))
|
|
return false;
|
|
|
|
if (input[pos] == '}')
|
|
{
|
|
pos++;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool JsonParser::extractArray(JsonNode &node)
|
|
{
|
|
pos++;
|
|
node.setType(JsonNode::DATA_VECTOR);
|
|
|
|
if (!extractWhitespace())
|
|
return false;
|
|
|
|
//Empty array found
|
|
if (input[pos] == ']')
|
|
{
|
|
pos++;
|
|
return true;
|
|
}
|
|
|
|
while (true)
|
|
{
|
|
//NOTE: currently 50% of time is this vector resizing.
|
|
//May be useful to use list during parsing and then swap() all items to vector
|
|
node.Vector().resize(node.Vector().size()+1);
|
|
|
|
if (!extractElement(node.Vector().back(), ']'))
|
|
return false;
|
|
|
|
if (input[pos] == ']')
|
|
{
|
|
pos++;
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool JsonParser::extractElement(JsonNode &node, char terminator)
|
|
{
|
|
if (!extractValue(node))
|
|
return false;
|
|
|
|
if (!extractWhitespace())
|
|
return false;
|
|
|
|
bool comma = (input[pos] == ',');
|
|
if (comma )
|
|
{
|
|
pos++;
|
|
if (!extractWhitespace())
|
|
return false;
|
|
}
|
|
|
|
if (input[pos] == terminator)
|
|
{
|
|
//FIXME: MOD COMPATIBILITY: Too many of these right now, re-enable later
|
|
//if (comma)
|
|
//error("Extra comma found!", true);
|
|
return true;
|
|
}
|
|
|
|
if (!comma)
|
|
error("Comma expected!", true);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool JsonParser::extractFloat(JsonNode &node)
|
|
{
|
|
assert(input[pos] == '-' || (input[pos] >= '0' && input[pos] <= '9'));
|
|
bool negative=false;
|
|
double result=0;
|
|
|
|
if (input[pos] == '-')
|
|
{
|
|
pos++;
|
|
negative = true;
|
|
}
|
|
|
|
if (input[pos] < '0' || input[pos] > '9')
|
|
return error("Number expected!");
|
|
|
|
//Extract integer part
|
|
while (input[pos] >= '0' && input[pos] <= '9')
|
|
{
|
|
result = result*10+(input[pos]-'0');
|
|
pos++;
|
|
}
|
|
|
|
if (input[pos] == '.')
|
|
{
|
|
//extract fractional part
|
|
pos++;
|
|
double fractMult = 0.1;
|
|
if (input[pos] < '0' || input[pos] > '9')
|
|
return error("Decimal part expected!");
|
|
|
|
while (input[pos] >= '0' && input[pos] <= '9')
|
|
{
|
|
result = result + fractMult*(input[pos]-'0');
|
|
fractMult /= 10;
|
|
pos++;
|
|
}
|
|
}
|
|
//TODO: exponential part
|
|
if (negative)
|
|
result = -result;
|
|
|
|
node.setType(JsonNode::DATA_FLOAT);
|
|
node.Float() = result;
|
|
return true;
|
|
}
|
|
|
|
bool JsonParser::error(const std::string &message, bool warning)
|
|
{
|
|
std::ostringstream stream;
|
|
std::string type(warning?" warning: ":" error: ");
|
|
|
|
stream << "At line " << lineCount << ", position "<<pos-lineStart
|
|
<< type << message <<"\n";
|
|
errors += stream.str();
|
|
|
|
return warning;
|
|
}
|
|
|
|
static const std::map<std::string, JsonNode::JsonType> stringToType =
|
|
boost::assign::map_list_of
|
|
("null", JsonNode::DATA_NULL) ("boolean", JsonNode::DATA_BOOL)
|
|
("number", JsonNode::DATA_FLOAT) ("string", JsonNode::DATA_STRING)
|
|
("array", JsonNode::DATA_VECTOR) ("object", JsonNode::DATA_STRUCT);
|
|
|
|
std::string JsonValidator::validateEnum(const JsonNode &node, const JsonVector &enumeration)
|
|
{
|
|
for(auto & enumEntry : enumeration)
|
|
{
|
|
if (node == enumEntry)
|
|
return "";
|
|
}
|
|
return fail("Key must have one of predefined values");
|
|
}
|
|
|
|
std::string JsonValidator::validatesSchemaList(const JsonNode &node, const JsonNode &schemas, std::string errorMsg, std::function<bool(size_t)> isValid)
|
|
{
|
|
if (!schemas.isNull())
|
|
{
|
|
std::string errors = "<tested schemas>\n";
|
|
size_t result = 0;
|
|
|
|
for(auto & schema : schemas.Vector())
|
|
{
|
|
std::string error = validateNode(node, schema);
|
|
if (error.empty())
|
|
{
|
|
result++;
|
|
}
|
|
else
|
|
{
|
|
errors += error;
|
|
errors += "<end of schema>\n";
|
|
}
|
|
}
|
|
if (isValid(result))
|
|
{
|
|
return "";
|
|
}
|
|
return fail(errorMsg) + errors;
|
|
}
|
|
return "";
|
|
}
|
|
|
|
std::string JsonValidator::validateNodeType(const JsonNode &node, const JsonNode &schema)
|
|
{
|
|
std::string errors;
|
|
|
|
// data must be valid against all schemas in the list
|
|
errors += validatesSchemaList(node, schema["allOf"], "Failed to pass all schemas", [&](size_t count)
|
|
{
|
|
return count == schema["allOf"].Vector().size();
|
|
});
|
|
|
|
// data must be valid against any non-zero number of schemas in the list
|
|
errors += validatesSchemaList(node, schema["anyOf"], "Failed to pass any schema", [&](size_t count)
|
|
{
|
|
return count > 0;
|
|
});
|
|
|
|
// data must be valid against one and only one schema
|
|
errors += validatesSchemaList(node, schema["oneOf"], "Failed to pass one and only one schema", [&](size_t count)
|
|
{
|
|
return count == 1;
|
|
});
|
|
|
|
// data must NOT be valid against schema
|
|
if (!schema["not"].isNull())
|
|
{
|
|
if (validateNode(node, schema["not"]).empty())
|
|
errors += fail("Successful validation against negative check");
|
|
}
|
|
return errors;
|
|
}
|
|
|
|
// Basic checks common for any nodes
|
|
std::string JsonValidator::validateNode(const JsonNode &node, const JsonNode &schema)
|
|
{
|
|
std::string errors;
|
|
|
|
assert(!schema.isNull()); // can this error be triggered?
|
|
|
|
if (node.isNull())
|
|
return ""; // node not present. consider to be "valid"
|
|
|
|
if (!schema["$ref"].isNull())
|
|
{
|
|
std::string URI = schema["$ref"].String();
|
|
//node must be validated using schema pointed by this reference and not by data here
|
|
//Local reference. Turn it into more easy to handle remote ref
|
|
if (boost::algorithm::starts_with(URI, "#"))
|
|
URI = usedSchemas.back() + URI;
|
|
|
|
return validateRoot(node, URI);
|
|
}
|
|
|
|
// basic schema check
|
|
auto & typeNode = schema["type"];
|
|
if ( !typeNode.isNull())
|
|
{
|
|
JsonNode::JsonType type = stringToType.find(typeNode.String())->second;
|
|
if(type != node.getType())
|
|
return errors + fail("Type mismatch!"); // different type. Any other checks are useless
|
|
}
|
|
|
|
errors += validateNodeType(node, schema);
|
|
|
|
// enumeration - data must be equeal to one of items in list
|
|
if (!schema["enum"].isNull())
|
|
errors += validateEnum(node, schema["enum"].Vector());
|
|
|
|
// try to run any type-specific checks
|
|
if (node.getType() == JsonNode::DATA_VECTOR) errors += validateVector(node, schema);
|
|
if (node.getType() == JsonNode::DATA_STRUCT) errors += validateStruct(node, schema);
|
|
if (node.getType() == JsonNode::DATA_STRING) errors += validateString(node, schema);
|
|
if (node.getType() == JsonNode::DATA_FLOAT) errors += validateNumber(node, schema);
|
|
|
|
return errors;
|
|
}
|
|
|
|
std::string JsonValidator::validateVectorItem(const JsonVector items, const JsonNode & schema, const JsonNode & additional, size_t index)
|
|
{
|
|
currentPath.push_back(JsonNode());
|
|
currentPath.back().Float() = index;
|
|
auto onExit = vstd::makeScopeGuard([&]
|
|
{
|
|
currentPath.pop_back();
|
|
});
|
|
|
|
if (!schema.isNull())
|
|
{
|
|
// case 1: schema is vector. Validate items agaist corresponding items in vector
|
|
if (schema.getType() == JsonNode::DATA_VECTOR)
|
|
{
|
|
if (schema.Vector().size() > index)
|
|
return validateNode(items[index], schema.Vector()[index]);
|
|
}
|
|
else // case 2: schema has to be struct. Apply it to all items, completely ignore additionalItems
|
|
{
|
|
return validateNode(items[index], schema);
|
|
}
|
|
}
|
|
|
|
// othervice check against schema in additional items field
|
|
if (additional.getType() == JsonNode::DATA_STRUCT)
|
|
return validateNode(items[index], additional);
|
|
|
|
// or, additionalItems field can be bool which indicates if such items are allowed
|
|
if (!additional.isNull() && additional.Bool() == false) // present and set to false - error
|
|
return fail("Unknown entry found");
|
|
|
|
// by default - additional items are allowed
|
|
return "";
|
|
}
|
|
|
|
//Checks "items" entry from schema (type-specific check for Vector)
|
|
std::string JsonValidator::validateVector(const JsonNode &node, const JsonNode &schema)
|
|
{
|
|
std::string errors;
|
|
auto & vector = node.Vector();
|
|
|
|
{
|
|
auto & items = schema["items"];
|
|
auto & additional = schema["additionalItems"];
|
|
|
|
for (size_t i=0; i<vector.size(); i++)
|
|
errors += validateVectorItem(vector, items, additional, i);
|
|
}
|
|
|
|
if (vstd::contains(schema.Struct(), "maxItems") && vector.size() > schema["maxItems"].Float())
|
|
errors += fail("Too many items in the list!");
|
|
|
|
if (vstd::contains(schema.Struct(), "minItems") && vector.size() < schema["minItems"].Float())
|
|
errors += fail("Too few items in the list");
|
|
|
|
if (schema["uniqueItems"].Bool())
|
|
{
|
|
for (auto itA = vector.begin(); itA != vector.end(); itA++)
|
|
{
|
|
auto itB = itA;
|
|
while (++itB != vector.end())
|
|
{
|
|
if (*itA == *itB)
|
|
errors += fail("List must consist from unique items");
|
|
}
|
|
}
|
|
}
|
|
return errors;
|
|
}
|
|
|
|
std::string JsonValidator::validateStructItem(const JsonNode &node, const JsonNode & schema, const JsonNode & additional, std::string nodeName)
|
|
{
|
|
currentPath.push_back(JsonNode());
|
|
currentPath.back().String() = nodeName;
|
|
auto onExit = vstd::makeScopeGuard([&]
|
|
{
|
|
currentPath.pop_back();
|
|
});
|
|
|
|
// there is schema specifically for this item
|
|
if (!schema[nodeName].isNull())
|
|
return validateNode(node, schema[nodeName]);
|
|
|
|
// try generic additionalItems schema
|
|
if (additional.getType() == JsonNode::DATA_STRUCT)
|
|
return validateNode(node, additional);
|
|
|
|
// or, additionalItems field can be bool which indicates if such items are allowed
|
|
if (!additional.isNull() && additional.Bool() == false) // present and set to false - error
|
|
return fail("Unknown entry found: " + nodeName);
|
|
|
|
// by default - additional items are allowed
|
|
return "";
|
|
}
|
|
|
|
//Checks "properties" entry from schema (type-specific check for Struct)
|
|
std::string JsonValidator::validateStruct(const JsonNode &node, const JsonNode &schema)
|
|
{
|
|
std::string errors;
|
|
auto & map = node.Struct();
|
|
|
|
{
|
|
auto & properties = schema["properties"];
|
|
auto & additional = schema["additionalProperties"];
|
|
|
|
for(auto & entry : map)
|
|
errors += validateStructItem(entry.second, properties, additional, entry.first);
|
|
}
|
|
|
|
for(auto & required : schema["required"].Vector())
|
|
{
|
|
if (node[required.String()].isNull())
|
|
errors += fail("Required entry " + required.String() + " is missing");
|
|
}
|
|
|
|
//Copy-paste from vector code. yay!
|
|
if (vstd::contains(schema.Struct(), "maxProperties") && map.size() > schema["maxProperties"].Float())
|
|
errors += fail("Too many items in the list!");
|
|
|
|
if (vstd::contains(schema.Struct(), "minItems") && map.size() < schema["minItems"].Float())
|
|
errors += fail("Too few items in the list");
|
|
|
|
if (schema["uniqueItems"].Bool())
|
|
{
|
|
for (auto itA = map.begin(); itA != map.end(); itA++)
|
|
{
|
|
auto itB = itA;
|
|
while (++itB != map.end())
|
|
{
|
|
if (itA->second == itB->second)
|
|
errors += fail("List must consist from unique items");
|
|
}
|
|
}
|
|
}
|
|
|
|
// dependencies. Format is object/struct where key is the name of key in data
|
|
// and value is either:
|
|
// a) array of fields that must be present
|
|
// b) struct with schema against which data should be valid
|
|
// These checks are triggered only if key is present
|
|
for(auto & deps : schema["dependencies"].Struct())
|
|
{
|
|
if (vstd::contains(map, deps.first))
|
|
{
|
|
if (deps.second.getType() == JsonNode::DATA_VECTOR)
|
|
{
|
|
JsonVector depList = deps.second.Vector();
|
|
for(auto & depEntry : depList)
|
|
{
|
|
if (!vstd::contains(map, depEntry.String()))
|
|
errors += fail("Property " + depEntry.String() + " required for " + deps.first + " is missing");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!validateNode(node, deps.second).empty())
|
|
errors += fail("Requirements for " + deps.first + " are not fulfilled");
|
|
}
|
|
}
|
|
}
|
|
|
|
// TODO: missing fields from draft v4
|
|
// patternProperties
|
|
return errors;
|
|
}
|
|
|
|
std::string JsonValidator::validateString(const JsonNode &node, const JsonNode &schema)
|
|
{
|
|
std::string errors;
|
|
auto & string = node.String();
|
|
|
|
if (vstd::contains(schema.Struct(), "maxLength") && string.size() > schema["maxLength"].Float())
|
|
errors += fail("String too long");
|
|
|
|
if (vstd::contains(schema.Struct(), "minLength") && string.size() < schema["minLength"].Float())
|
|
errors += fail("String too short");
|
|
|
|
// TODO: missing fields from draft v4
|
|
// pattern
|
|
return errors;
|
|
}
|
|
|
|
std::string JsonValidator::validateNumber(const JsonNode &node, const JsonNode &schema)
|
|
{
|
|
std::string errors;
|
|
auto & value = node.Float();
|
|
if (vstd::contains(schema.Struct(), "maximum"))
|
|
{
|
|
if (schema["exclusiveMaximum"].Bool())
|
|
{
|
|
if (value >= schema["maximum"].Float())
|
|
errors += fail("Value is too large");
|
|
}
|
|
else
|
|
{
|
|
if (value > schema["maximum"].Float())
|
|
errors += fail("Value is too large");
|
|
}
|
|
}
|
|
|
|
if (vstd::contains(schema.Struct(), "minimum"))
|
|
{
|
|
if (schema["exclusiveMinimum"].Bool())
|
|
{
|
|
if (value <= schema["minimum"].Float())
|
|
errors += fail("Value is too small");
|
|
}
|
|
else
|
|
{
|
|
if (value < schema["minimum"].Float())
|
|
errors += fail("Value is too small");
|
|
}
|
|
}
|
|
|
|
if (vstd::contains(schema.Struct(), "multipleOf"))
|
|
{
|
|
double result = value / schema["multipleOf"].Float();
|
|
if (floor(result) != result)
|
|
errors += ("Value is not divisible");
|
|
}
|
|
return errors;
|
|
}
|
|
|
|
//basic schema validation (like checking $schema entry).
|
|
std::string JsonValidator::validateRoot(const JsonNode &node, std::string schemaName)
|
|
{
|
|
const JsonNode & schema = JsonUtils::getSchema(schemaName);
|
|
|
|
usedSchemas.push_back(schemaName.substr(0, schemaName.find('#')));
|
|
auto onExit = vstd::makeScopeGuard([&]
|
|
{
|
|
usedSchemas.pop_back();
|
|
});
|
|
|
|
if (!schema.isNull())
|
|
return validateNode(node, schema);
|
|
else
|
|
return fail("Schema not found!");
|
|
}
|
|
|
|
std::string JsonValidator::fail(const std::string &message)
|
|
{
|
|
std::string errors;
|
|
errors += "At ";
|
|
if (!currentPath.empty())
|
|
{
|
|
for(const JsonNode &path : currentPath)
|
|
{
|
|
errors += "/";
|
|
if (path.getType() == JsonNode::DATA_STRING)
|
|
errors += path.String();
|
|
else
|
|
errors += boost::lexical_cast<std::string>(static_cast<unsigned>(path.Float()));
|
|
}
|
|
}
|
|
else
|
|
errors += "<root>";
|
|
errors += "\n\t Error: " + message + "\n";
|
|
return errors;
|
|
}
|
|
|
|
bool JsonValidator::validate(const JsonNode &root, std::string schemaName, std::string name)
|
|
{
|
|
std::string errors = validateRoot(root, schemaName);
|
|
|
|
if (!errors.empty())
|
|
{
|
|
logGlobal->warnStream() << "Data in " << name << " is invalid!";
|
|
logGlobal->warnStream() << errors;
|
|
}
|
|
|
|
return errors.empty();
|
|
}
|
|
|
|
///JsonUtils
|
|
|
|
void JsonUtils::parseTypedBonusShort(const JsonVector& source, Bonus *dest)
|
|
{
|
|
dest->val = source[1].Float();
|
|
resolveIdentifier(source[2],dest->subtype);
|
|
dest->additionalInfo = source[3].Float();
|
|
dest->duration = Bonus::PERMANENT; //TODO: handle flags (as integer)
|
|
dest->turnsRemain = 0;
|
|
}
|
|
|
|
|
|
Bonus * JsonUtils::parseBonus (const JsonVector &ability_vec) //TODO: merge with AddAbility, create universal parser for all bonus properties
|
|
{
|
|
auto b = new Bonus();
|
|
std::string type = ability_vec[0].String();
|
|
auto it = bonusNameMap.find(type);
|
|
if (it == bonusNameMap.end())
|
|
{
|
|
logGlobal->errorStream() << "Error: invalid ability type " << type;
|
|
return b;
|
|
}
|
|
b->type = it->second;
|
|
|
|
parseTypedBonusShort(ability_vec, b);
|
|
return b;
|
|
}
|
|
template <typename T>
|
|
const T & parseByMap(const std::map<std::string, T> & map, const JsonNode * val, std::string err)
|
|
{
|
|
static T defaultValue = T();
|
|
if (!val->isNull())
|
|
{
|
|
std::string type = val->String();
|
|
auto it = map.find(type);
|
|
if (it == map.end())
|
|
{
|
|
logGlobal->errorStream() << "Error: invalid " << err << type;
|
|
return defaultValue;
|
|
}
|
|
else
|
|
{
|
|
return it->second;
|
|
}
|
|
}
|
|
else
|
|
return defaultValue;
|
|
}
|
|
|
|
void JsonUtils::resolveIdentifier (si32 &var, const JsonNode &node, std::string name)
|
|
{
|
|
const JsonNode &value = node[name];
|
|
if (!value.isNull())
|
|
{
|
|
switch (value.getType())
|
|
{
|
|
case JsonNode::DATA_FLOAT:
|
|
var = value.Float();
|
|
break;
|
|
case JsonNode::DATA_STRING:
|
|
VLC->modh->identifiers.requestIdentifier(value, [&](si32 identifier)
|
|
{
|
|
var = identifier;
|
|
});
|
|
break;
|
|
default:
|
|
logGlobal->errorStream() << "Error! Wrong indentifier used for value of " << name;
|
|
}
|
|
}
|
|
}
|
|
|
|
void JsonUtils::resolveIdentifier (const JsonNode &node, si32 &var)
|
|
{
|
|
switch (node.getType())
|
|
{
|
|
case JsonNode::DATA_FLOAT:
|
|
var = node.Float();
|
|
break;
|
|
case JsonNode::DATA_STRING:
|
|
VLC->modh->identifiers.requestIdentifier (node, [&](si32 identifier)
|
|
{
|
|
var = identifier;
|
|
});
|
|
break;
|
|
default:
|
|
logGlobal->errorStream() << "Error! Wrong indentifier used for identifier!";
|
|
}
|
|
}
|
|
|
|
Bonus * JsonUtils::parseBonus (const JsonNode &ability)
|
|
{
|
|
|
|
auto b = new Bonus();
|
|
const JsonNode *value;
|
|
|
|
std::string type = ability["type"].String();
|
|
auto it = bonusNameMap.find(type);
|
|
if (it == bonusNameMap.end())
|
|
{
|
|
logGlobal->errorStream() << "Error: invalid ability type " << type;
|
|
return b;
|
|
}
|
|
b->type = it->second;
|
|
|
|
resolveIdentifier (b->subtype, ability, "subtype");
|
|
|
|
b->val = ability["val"].Float();
|
|
|
|
value = &ability["valueType"];
|
|
if (!value->isNull())
|
|
b->valType = static_cast<Bonus::ValueType>(parseByMap(bonusValueMap, value, "value type "));
|
|
|
|
resolveIdentifier (b->additionalInfo, ability, "addInfo");
|
|
|
|
b->turnsRemain = ability["turns"].Float();
|
|
|
|
b->sid = ability["sourceID"].Float();
|
|
|
|
b->description = ability["description"].String();
|
|
|
|
value = &ability["effectRange"];
|
|
if (!value->isNull())
|
|
b->effectRange = static_cast<Bonus::LimitEffect>(parseByMap(bonusLimitEffect, value, "effect range "));
|
|
|
|
value = &ability["duration"];
|
|
if (!value->isNull())
|
|
{
|
|
switch (value->getType())
|
|
{
|
|
case JsonNode::DATA_STRING:
|
|
b->duration = parseByMap(bonusDurationMap, value, "duration type ");
|
|
break;
|
|
case JsonNode::DATA_VECTOR:
|
|
{
|
|
ui16 dur = 0;
|
|
for (const JsonNode & d : value->Vector())
|
|
{
|
|
dur |= parseByMap(bonusDurationMap, &d, "duration type ");
|
|
}
|
|
b->duration = dur;
|
|
}
|
|
break;
|
|
default:
|
|
logGlobal->errorStream() << "Error! Wrong bonus duration format.";
|
|
}
|
|
}
|
|
|
|
value = &ability["source"];
|
|
if (!value->isNull())
|
|
b->source = static_cast<Bonus::BonusSource>(parseByMap(bonusSourceMap, value, "source type "));
|
|
|
|
value = &ability["limiters"];
|
|
if (!value->isNull())
|
|
{
|
|
for (const JsonNode & limiter : value->Vector())
|
|
{
|
|
switch (limiter.getType())
|
|
{
|
|
case JsonNode::DATA_STRING: //pre-defined limiters
|
|
b->limiter = parseByMap(bonusLimiterMap, &limiter, "limiter type ");
|
|
break;
|
|
case JsonNode::DATA_STRUCT: //customizable limiters
|
|
{
|
|
shared_ptr<ILimiter> l;
|
|
if (limiter["type"].String() == "CREATURE_TYPE_LIMITER")
|
|
{
|
|
shared_ptr<CCreatureTypeLimiter> l2 = make_shared<CCreatureTypeLimiter>(); //TODO: How the hell resolve pointer to creature?
|
|
const JsonVector vec = limiter["parameters"].Vector();
|
|
VLC->modh->identifiers.requestIdentifier("creature", vec[0], [=](si32 creature)
|
|
{
|
|
l2->setCreature (CreatureID(creature));
|
|
});
|
|
if (vec.size() > 1)
|
|
{
|
|
l2->includeUpgrades = vec[1].Bool();
|
|
}
|
|
else
|
|
l2->includeUpgrades = false;
|
|
|
|
l = l2;
|
|
}
|
|
if (limiter["type"].String() == "HAS_ANOTHER_BONUS_LIMITER")
|
|
{
|
|
shared_ptr<HasAnotherBonusLimiter> l2 = make_shared<HasAnotherBonusLimiter>();
|
|
const JsonVector vec = limiter["parameters"].Vector();
|
|
std::string anotherBonusType = vec[0].String();
|
|
|
|
auto it = bonusNameMap.find (anotherBonusType);
|
|
if (it == bonusNameMap.end())
|
|
{
|
|
logGlobal->errorStream() << "Error: invalid ability type " << anotherBonusType;
|
|
continue;
|
|
}
|
|
l2->type = it->second;
|
|
|
|
if (vec.size() > 1 )
|
|
{
|
|
resolveIdentifier (vec[1], l2->subtype);
|
|
l2->isSubtypeRelevant = true;
|
|
}
|
|
l = l2;
|
|
}
|
|
b->addLimiter(l);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
value = &ability["propagator"];
|
|
if (!value->isNull())
|
|
b->propagator = parseByMap(bonusPropagatorMap, value, "propagator type ");
|
|
|
|
return b;
|
|
}
|
|
|
|
//returns first Key with value equal to given one
|
|
template<class Key, class Val>
|
|
Key reverseMapFirst(const Val & val, const std::map<Key, Val> map)
|
|
{
|
|
for(auto it : map)
|
|
{
|
|
if(it.second == val)
|
|
{
|
|
return it.first;
|
|
}
|
|
}
|
|
assert(0);
|
|
return "";
|
|
}
|
|
|
|
void JsonUtils::unparseBonus( JsonNode &node, const Bonus * bonus )
|
|
{
|
|
node["type"].String() = reverseMapFirst<std::string, Bonus::BonusType>(bonus->type, bonusNameMap);
|
|
node["subtype"].Float() = bonus->subtype;
|
|
node["val"].Float() = bonus->val;
|
|
node["valueType"].String() = reverseMapFirst<std::string, Bonus::ValueType>(bonus->valType, bonusValueMap);
|
|
node["additionalInfo"].Float() = bonus->additionalInfo;
|
|
node["turns"].Float() = bonus->turnsRemain;
|
|
node["sourceID"].Float() = bonus->source;
|
|
node["description"].String() = bonus->description;
|
|
node["effectRange"].String() = reverseMapFirst<std::string, Bonus::LimitEffect>(bonus->effectRange, bonusLimitEffect);
|
|
node["duration"].String() = reverseMapFirst<std::string, ui16>(bonus->duration, bonusDurationMap);
|
|
node["source"].String() = reverseMapFirst<std::string, Bonus::BonusSource>(bonus->source, bonusSourceMap);
|
|
if(bonus->limiter)
|
|
{
|
|
node["limiter"].String() = reverseMapFirst<std::string, TLimiterPtr>(bonus->limiter, bonusLimiterMap);
|
|
}
|
|
if(bonus->propagator)
|
|
{
|
|
node["propagator"].String() = reverseMapFirst<std::string, TPropagatorPtr>(bonus->propagator, bonusPropagatorMap);
|
|
}
|
|
}
|
|
|
|
void minimizeNode(JsonNode & node, const JsonNode & schema)
|
|
{
|
|
if (schema["type"].String() == "object")
|
|
{
|
|
std::set<std::string> foundEntries;
|
|
|
|
for(auto & entry : schema["required"].Vector())
|
|
{
|
|
std::string name = entry.String();
|
|
foundEntries.insert(name);
|
|
|
|
minimizeNode(node[name], schema["properties"][name]);
|
|
|
|
if (vstd::contains(node.Struct(), name) &&
|
|
node[name] == schema["properties"][name]["default"])
|
|
{
|
|
node.Struct().erase(name);
|
|
}
|
|
}
|
|
|
|
// erase all unhandled entries
|
|
for (auto it = node.Struct().begin(); it != node.Struct().end();)
|
|
{
|
|
if (!vstd::contains(foundEntries, it->first))
|
|
it = node.Struct().erase(it);
|
|
else
|
|
it++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void JsonUtils::minimize(JsonNode & node, std::string schemaName)
|
|
{
|
|
minimizeNode(node, getSchema(schemaName));
|
|
}
|
|
|
|
// FIXME: except for several lines function is identical to minimizeNode. Some way to reduce duplication?
|
|
void maximizeNode(JsonNode & node, const JsonNode & schema)
|
|
{
|
|
// "required" entry can only be found in object/struct
|
|
if (schema["type"].String() == "object")
|
|
{
|
|
std::set<std::string> foundEntries;
|
|
|
|
// check all required entries that have default version
|
|
for(auto & entry : schema["required"].Vector())
|
|
{
|
|
std::string name = entry.String();
|
|
foundEntries.insert(name);
|
|
|
|
if (node[name].isNull() &&
|
|
!schema["properties"][name]["default"].isNull())
|
|
{
|
|
node[name] = schema["properties"][name]["default"];
|
|
}
|
|
maximizeNode(node[name], schema["properties"][name]);
|
|
}
|
|
|
|
// erase all unhandled entries
|
|
for (auto it = node.Struct().begin(); it != node.Struct().end();)
|
|
{
|
|
if (!vstd::contains(foundEntries, it->first))
|
|
it = node.Struct().erase(it);
|
|
else
|
|
it++;
|
|
}
|
|
}
|
|
}
|
|
|
|
void JsonUtils::maximize(JsonNode & node, std::string schemaName)
|
|
{
|
|
maximizeNode(node, getSchema(schemaName));
|
|
}
|
|
|
|
bool JsonUtils::validate(const JsonNode &node, std::string schemaName, std::string dataName)
|
|
{
|
|
JsonValidator validator;
|
|
return validator.validate(node, schemaName, dataName);
|
|
}
|
|
|
|
const JsonNode & getSchemaByName(std::string name)
|
|
{
|
|
// cached schemas to avoid loading json data multiple times
|
|
static std::map<std::string, JsonNode> loadedSchemas;
|
|
|
|
if (vstd::contains(loadedSchemas, name))
|
|
return loadedSchemas[name];
|
|
|
|
std::string filename = "config/schemas/" + name + ".json";
|
|
|
|
if (CResourceHandler::get()->existsResource(ResourceID(filename)))
|
|
{
|
|
loadedSchemas[name] = JsonNode(ResourceID(filename));
|
|
return loadedSchemas[name];
|
|
}
|
|
|
|
logGlobal->errorStream() << "Error: missing schema with name " << name << "!";
|
|
assert(0);
|
|
return nullNode;
|
|
}
|
|
|
|
const JsonNode & JsonUtils::getSchema(std::string URI)
|
|
{
|
|
std::vector<std::string> segments;
|
|
|
|
size_t posColon = URI.find(':');
|
|
size_t posHash = URI.find('#');
|
|
assert(posColon != std::string::npos);
|
|
|
|
std::string protocolName = URI.substr(0, posColon);
|
|
std::string filename = URI.substr(posColon + 1, posHash - posColon - 1);
|
|
|
|
if (protocolName != "vcmi")
|
|
{
|
|
logGlobal->errorStream() << "Error: unsupported URI protocol for schema: " << segments[0];
|
|
return nullNode;
|
|
}
|
|
|
|
// check if json pointer if present (section after hash in string)
|
|
if (posHash == std::string::npos || posHash == URI.size() - 1)
|
|
return getSchemaByName(filename);
|
|
else
|
|
return getSchemaByName(filename).resolvePointer(URI.substr(posHash + 1));
|
|
}
|
|
|
|
void JsonUtils::merge(JsonNode & dest, JsonNode & source)
|
|
{
|
|
if (dest.getType() == JsonNode::DATA_NULL)
|
|
{
|
|
std::swap(dest, source);
|
|
return;
|
|
}
|
|
|
|
switch (source.getType())
|
|
{
|
|
case JsonNode::DATA_NULL:
|
|
{
|
|
dest.clear();
|
|
break;
|
|
}
|
|
case JsonNode::DATA_BOOL:
|
|
case JsonNode::DATA_FLOAT:
|
|
case JsonNode::DATA_STRING:
|
|
{
|
|
std::swap(dest, source);
|
|
break;
|
|
}
|
|
case JsonNode::DATA_VECTOR:
|
|
{
|
|
size_t total = std::min(source.Vector().size(), dest.Vector().size());
|
|
|
|
for (size_t i=0; i< total; i++)
|
|
merge(dest.Vector()[i], source.Vector()[i]);
|
|
|
|
if (dest.Vector().size() < source.Vector().size())
|
|
{
|
|
//reserve place and *move* remaining data from source to dest
|
|
source.Vector().reserve(source.Vector().size() + dest.Vector().size());
|
|
|
|
std::move(source.Vector().begin() + total, source.Vector().end(),
|
|
std::back_inserter(dest.Vector()));
|
|
}
|
|
break;
|
|
}
|
|
case JsonNode::DATA_STRUCT:
|
|
{
|
|
//recursively merge all entries from struct
|
|
for(auto & node : source.Struct())
|
|
merge(dest[node.first], node.second);
|
|
}
|
|
}
|
|
}
|
|
|
|
void JsonUtils::mergeCopy(JsonNode & dest, JsonNode source)
|
|
{
|
|
// uses copy created in stack to safely merge two nodes
|
|
merge(dest, source);
|
|
}
|
|
|
|
JsonNode JsonUtils::assembleFromFiles(std::vector<std::string> files)
|
|
{
|
|
JsonNode result;
|
|
|
|
for(std::string file : files)
|
|
{
|
|
JsonNode section(ResourceID(file, EResType::TEXT));
|
|
merge(result, section);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
JsonNode JsonUtils::assembleFromFiles(std::string filename)
|
|
{
|
|
JsonNode result;
|
|
ResourceID resID(filename, EResType::TEXT);
|
|
|
|
for(auto & loader : CResourceHandler::get()->getResourcesWithName(resID))
|
|
{
|
|
// FIXME: some way to make this code more readable
|
|
auto stream = loader->load(resID);
|
|
std::unique_ptr<ui8[]> textData(new ui8[stream->getSize()]);
|
|
stream->read(textData.get(), stream->getSize());
|
|
|
|
JsonNode section((char*)textData.get(), stream->getSize());
|
|
merge(result, section);
|
|
}
|
|
return result;
|
|
}
|