JSON.h

/*
 * File JSON.h part of the SimpleJSON Library - http://mjpa.in/json
 *
 * 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 _JSON_H_
#define _JSON_H_

// Win32 incompatibilities
#if defined(WIN32) && !defined(__GNUC__)
        #define wcsncasecmp _wcsnicmp
        static inline bool isnan(double x) { return x != x; }
        static inline bool isinf(double x) { return !isnan(x) && isnan(x - x); }
#endif

#include <vector>
#include <string>
#include <map>

// Linux compile fix - from quaker66
#ifdef __GNUC__
        #include <cstring>
        #include <cstdlib>
#endif

// Mac compile fixes - from quaker66, Lion fix by dabrahams
#if defined(__APPLE__) && __DARWIN_C_LEVEL < 200809L || (defined(WIN32) && defined(__GNUC__)) || defined(ANDROID)
        #include <wctype.h>
        #include <wchar.h>
        
        static inline int wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n)
        {
                int lc1  = 0;
                int lc2  = 0;

                while (n--)
                {
                        lc1 = towlower (*s1);
                        lc2 = towlower (*s2);

                        if (lc1 != lc2)
                                return (lc1 - lc2);

                        if (!lc1)
                                return 0;

                        ++s1;
                        ++s2;
                }

                return 0;
        }
#endif

// Simple function to check a string 's' has at least 'n' characters
static inline bool simplejson_wcsnlen(const wchar_t *s, size_t n) {
        if (s == 0)
                return false;

        const wchar_t *save = s;
        while (n-- > 0)
        {
                if (*(save++) == 0) return false;
        }

        return true;
}

// Custom types
class JSONValue;
typedef std::vector<JSONValue*> JSONArray;
typedef std::map<std::wstring, JSONValue*> JSONObject;

#include "JSONValue.h"

class JSON
{
        friend class JSONValue;
        
        public:
                static JSONValue* Parse(const char *data);
                static JSONValue* Parse(const wchar_t *data);
                static std::wstring Stringify(const JSONValue *value);
                static std::wstring s2ws(const std::string& str);
                static std::string ws2s(const std::wstring& wstr);
        protected:
                static bool SkipWhitespace(const wchar_t **data);
                static bool ExtractString(const wchar_t **data, std::wstring &str);
                static double ParseInt(const wchar_t **data);
                static double ParseDecimal(const wchar_t **data);
        private:
                JSON();
};

#endif