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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* Files JSON.h and JSONValue.h part of the SimpleJSON Library - https://github.com/MJPA/SimpleJSON
*
* Copyright (C) 2010 Mike Anchor
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef COMMON_JSON_H
#define COMMON_JSON_H
#include "common/array.h"
#include "common/hashmap.h"
#include "common/hash-str.h"
#include "common/str.h"
// Win32 incompatibilities
#if defined(WIN32) && !defined(__GNUC__)
static inline bool isnan(double x) {
return x != x;
}
static inline bool isinf(double x) {
return !isnan(x) && isnan(x - x);
}
#endif
// Simple function to check a string 's' has at least 'n' characters
static inline bool simplejson_wcsnlen(const char *s, size_t n) {
if (s == nullptr)
return false;
const char *save = s;
while (n-- > 0) {
if (*(save++) == 0) return false;
}
return true;
}
namespace Common {
// Custom types
class JSONValue;
typedef Array<JSONValue*> JSONArray;
typedef HashMap<String, JSONValue*> JSONObject;
class JSON;
enum JSONType { JSONType_Null, JSONType_String, JSONType_Bool, JSONType_Number, JSONType_IntegerNumber, JSONType_Array, JSONType_Object };
class JSONValue {
friend class JSON;
public:
JSONValue(/*NULL*/);
JSONValue(const char *charValue);
JSONValue(const String &stringValue);
JSONValue(bool boolValue);
JSONValue(double numberValue);
JSONValue(long long int numberValue);
JSONValue(const JSONArray &arrayValue);
JSONValue(const JSONObject &objectValue);
JSONValue(const JSONValue &source);
~JSONValue();
bool isNull() const;
bool isString() const;
bool isBool() const;
bool isNumber() const;
bool isIntegerNumber() const;
bool isArray() const;
bool isObject() const;
const String &asString() const;
bool asBool() const;
double asNumber() const;
long long int asIntegerNumber() const;
const JSONArray &asArray() const;
const JSONObject &asObject() const;
size_t countChildren() const;
bool hasChild(size_t index) const;
JSONValue *child(size_t index);
bool hasChild(const char *name) const;
JSONValue *child(const char *name);
Array<String> objectKeys() const;
String stringify(bool const prettyprint = false) const;
protected:
static JSONValue *parse(const char **data);
private:
static String stringifyString(const String &str);
static uint32 decodeUtf8Char(String::const_iterator &begin, const String::const_iterator &end);
static uint8 decodeUtf8Byte(uint8 state, uint32 &codepoint, uint8 byte);
String stringifyImpl(size_t const indentDepth) const;
static String indent(size_t depth);
JSONType _type;
union {
bool _boolValue;
double _numberValue;
long long int _integerValue;
String *_stringValue;
JSONArray *_arrayValue;
JSONObject *_objectValue;
};
};
class JSON {
friend class JSONValue;
public:
static JSONValue *parse(const char *data);
static String stringify(const JSONValue *value);
protected:
static bool skipWhitespace(const char **data);
static bool extractString(const char **data, String &str);
static uint32 parseUnicode(const char **data);
static double parseInt(const char **data);
static double parseDecimal(const char **data);
private:
JSON();
};
} // End of namespace Common
#endif
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