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