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  • SuperObject Delphi 的 JSON 属性乱序 操作类改造 关于属性顺序的问题

    Delphi 的 ISuperObject 属性顺序为随机。但是很多时候,是需要按加入顺序进行读取。我也看了网上很多人有类似需求。也有人问过原作者,作者答复为:JSON协议规定为无序。看了我真是无语。

    也看过网上一些人自己的修改,但是修改后有两个问题(网上的方法都不好,只能自己动手了):
    1. 性能急剧下降。原作者是用二叉树对性能做了极大的优化。但是网上修改的方法性能不行。
    2. 属性数大于 32 时会出错。(原来用的是二叉树,修改后部分算法未修改,导致此问题)。

    我采用的是重写遍历器的方法,和原版性能接近。

    * 执行 500*500 数据的节点变更后,性能和原版差别不太大。
    *
    * 原始性能 0.280 秒
    * 旧的稳定改版性能 15.774 秒
    * 新的稳定改版性能 0.535 秒
    *
    * 性能是原版的 1.9 倍左右。而之前将二叉树变为链表的方法,导致性能变为 56 分之一。
    * 温涛,于 2018-10-26。邮箱 delphi2006@163.com

    把源码顺便贴上吧。

    (*
     *                         Super Object Toolkit
     *
     * Usage allowed under the restrictions of the Lesser GNU General Public License
     * or alternatively the restrictions of the Mozilla Public License 1.1
     *
     * Software distributed under the License is distributed on an "AS IS" basis,
     * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
     * the specific language governing rights and limitations under the License.
     *
     * Unit owner : Henri Gourvest <hgourvest@gmail.com>
     * Web site   : http://www.progdigy.com
     *
     * This unit is inspired from the json c lib:
     *   Michael Clark <michael@metaparadigm.com>
     *   http://oss.metaparadigm.com/json-c/
     *
     *  CHANGES:
     *    终极改版来了,现在的改版增加了存储节点名称的功能。并且重写了遍历器,和原版性能接近。
     *  执行 500*500 数据的节点变更后,性能和原版差别不太大。
     *
     *        原始性能           0.280 秒
     *        旧的稳定改版性能  15.774 秒
     *        新的稳定改版性能   0.535 秒
     *
     *    性能是原版的 1.9 倍左右。而之前将二叉树变为链表的方法,导致性能变为 56 分之一。
     *    温涛,于 2018-10-26。邮箱 delphi2006@163.com
     *
     *  v1.2
     *   + support of currency data type
     *   + right trim unquoted string
     *   + read Unicode Files and streams (Litle Endian with BOM)
     *   + Fix bug on javadate functions + windows nt compatibility
     *   + Now you can force to parse only the canonical syntax of JSON using the stric parameter
     *   + Delphi 2010 RTTI marshalling
     *  v1.1
     *   + Double licence MPL or LGPL.
     *   + Delphi 2009 compatibility & Unicode support.
     *   + AsString return a string instead of PChar.
     *   + Escaped and Unascaped JSON serialiser.
     *   + Missed FormFeed added \f
     *   - Removed @ trick, uses forcepath() method instead.
     *   + Fixed parse error with uppercase E symbol in numbers.
     *   + Fixed possible buffer overflow when enlarging array.
     *   + Added "delete", "pack", "insert" methods for arrays and/or objects
     *   + Multi parametters when calling methods
     *   + Delphi Enumerator (for obj1 in obj2 do ...)
     *   + Format method ex: obj.format('<%name%>%tab[1]%</%name%>')
     *   + ParseFile and ParseStream methods
     *   + Parser now understand hexdecimal c syntax ex: \xFF
     *   + Null Object Design Patern (ex: for obj in values.N['path'] do ...)
     *  v1.0
     *   + renamed class
     *   + interfaced object
     *   + added a new data type: the method
     *   + parser can now evaluate properties and call methods
     *   - removed obselet rpc class
     *   - removed "find" method, now you can use "parse" method instead
     *  v0.6
     *   + refactoring
     *  v0.5
     *   + new find method to get or set value using a path syntax
     *       ex: obj.s['obj.prop[1]'] := 'string value';
     *           obj.a['@obj.array'].b[n] := true; // @ -> create property if necessary
     *  v0.4
     *   + bug corrected: AVL tree badly balanced.
     *  v0.3
     *   + New validator partially based on the Kwalify syntax.
     *   + extended syntax to parse unquoted fields.
     *   + Freepascal compatibility win32/64 Linux32/64.
     *   + JavaToDelphiDateTime and DelphiToJavaDateTime improved for UTC.
     *   + new TJsonObject.Compare function.
     *  v0.2
     *   + Hashed string list replaced with a faster AVL tree
     *   + JsonInt data type can be changed to int64
     *   + JavaToDelphiDateTime and DelphiToJavaDateTime helper fonctions
     *   + from json-c v0.7
     *     + Add escaping of backslash to json output
     *     + Add escaping of foward slash on tokenizing and output
     *     + Changes to internal tokenizer from using recursion to
     *       using a depth state structure to allow incremental parsing
     *  v0.1
     *   + first release
     *)
    
    {$IFDEF FPC}
      {$MODE OBJFPC}{$H+}
    {$ENDIF}
    
    {$DEFINE SUPER_METHOD}
    {$DEFINE WINDOWSNT_COMPATIBILITY}
    {.$DEFINE DEBUG} // track memory leack
    
    
    {$if defined(FPC) or defined(VER170) or defined(VER180) or defined(VER190) or defined(VER200) or defined(VER210)}
      {$DEFINE HAVE_INLINE}
    {$ifend}
    
    {$if defined(VER210) or defined(VER220) or defined(VER230)}
      {$define HAVE_RTTI}
    {$ifend}
    
    {$OVERFLOWCHECKS OFF}
    {$RANGECHECKS OFF}
    {.$DEFINE ToStringEx}
    
    unit SuperObjectToolkit;
    
    interface
    uses
      Classes, SysUtils
    {$IFDEF HAVE_RTTI}
      ,Generics.Collections, RTTI, TypInfo
    {$ENDIF}
      , Math, Generics.Defaults, Variants;
    
    type
    {$IFNDEF FPC}
    {$IFDEF CPUX64}
      PtrInt = Int64;
      PtrUInt = UInt64;
    {$ELSE}
      PtrInt = longint;
      PtrUInt = Longword;
    {$ENDIF}
    {$ENDIF}
      SuperInt = Int64;
    
    {$if (sizeof(Char) = 1)}
      SOChar = WideChar;
      SOIChar = Word;
      PSOChar = PWideChar;
    {$IFDEF FPC}
      SOString = UnicodeString;
    {$ELSE}
      SOString = WideString;
    {$ENDIF}
    {$else}
      SOChar = Char;
      SOIChar = Word;
      PSOChar = PChar;
      SOString = string;
    {$ifend}
    
    const
      SUPER_ARRAY_LIST_DEFAULT_SIZE = 32;
      SUPER_TOKENER_MAX_DEPTH = 32;
    
      SUPER_AVL_MAX_DEPTH = sizeof(longint) * 8;
      SUPER_AVL_MASK_HIGH_BIT = not ((not longword(0)) shr 1);
    
    type
      // forward declarations
      TSuperObject = class;
      ISuperObject = interface;
      TSuperArray = class;
    
    (* AVL Tree
     *  This is a "special" autobalanced AVL tree
     *  It use a hash value for fast compare
     *)
    
    {$IFDEF SUPER_METHOD}
      TSuperMethod = procedure(const This, Params: ISuperObject; var Result: ISuperObject);
    {$ENDIF}
    
    
      TSuperAvlBitArray = set of 0..SUPER_AVL_MAX_DEPTH - 1;
    
      TSuperAvlSearchType = (stEQual, stLess, stGreater);
      TSuperAvlSearchTypes = set of TSuperAvlSearchType;
      TSuperAvlIterator = class;
    
      TSuperAvlEntry = class
      private
        FGt, FLt: TSuperAvlEntry;
        FBf: integer;
        FHash: Cardinal;
        FName: SOString;
        FPtr: Pointer;
        function GetValue: ISuperObject;
        procedure SetValue(const val: ISuperObject);
      public
        class function Hash(const k: SOString): Cardinal; virtual;
        constructor Create(const AName: SOString; Obj: Pointer); virtual;
        property Name: SOString read FName;
        property Ptr: Pointer read FPtr;
        property Value: ISuperObject read GetValue write SetValue;
      end;
    
      TSuperAvlTree = class
      private
        FRoot: TSuperAvlEntry;
        FCount: Integer;
        // WenTao 添加了用于节点顺序的功能。
        FNodeNames: TStringList;
        function balance(bal: TSuperAvlEntry): TSuperAvlEntry;
      protected
        // WenTao 添加了用于节点顺序的功能。
        procedure AddNodeName(nodeName: SOString);
        procedure RemoveNode(nodeName: SOString);
    
        procedure doDeleteEntry(Entry: TSuperAvlEntry; all: boolean); virtual;
        function CompareNodeNode(node1, node2: TSuperAvlEntry): integer; virtual;
        function CompareKeyNode(const k: SOString; h: TSuperAvlEntry): integer; virtual;
        function Insert(h: TSuperAvlEntry): TSuperAvlEntry; virtual;
        function Search(const k: SOString; st: TSuperAvlSearchTypes = [stEqual]): TSuperAvlEntry; virtual;
      public
        constructor Create; virtual;
        destructor Destroy; override;
        function IsEmpty: boolean;
        procedure Clear(all: boolean = false); virtual;
        procedure Pack(all: boolean);
        function Delete(const k: SOString): ISuperObject;
        function GetEnumerator: TSuperAvlIterator;
        property count: Integer read FCount;
      end;
    
      TSuperTableString = class(TSuperAvlTree)
      protected
        procedure doDeleteEntry(Entry: TSuperAvlEntry; all: boolean); override;
        procedure PutO(const k: SOString; const value: ISuperObject);
        function GetO(const k: SOString): ISuperObject;
        procedure PutS(const k: SOString; const value: SOString);
        function GetS(const k: SOString): SOString;
        procedure PutI(const k: SOString; value: SuperInt);
        function GetI(const k: SOString): SuperInt;
        procedure PutD(const k: SOString; value: Double);
        function GetD(const k: SOString): Double;
        procedure PutB(const k: SOString; value: Boolean);
        function GetB(const k: SOString): Boolean;
    {$IFDEF SUPER_METHOD}
        procedure PutM(const k: SOString; value: TSuperMethod);
        function GetM(const k: SOString): TSuperMethod;
    {$ENDIF}
        procedure PutN(const k: SOString; const value: ISuperObject);
        function GetN(const k: SOString): ISuperObject;
        procedure PutC(const k: SOString; value: Currency);
        function GetC(const k: SOString): Currency;
      public
        property O[const k: SOString]: ISuperObject read GetO write PutO; default;
        property S[const k: SOString]: SOString read GetS write PutS;
        property I[const k: SOString]: SuperInt read GetI write PutI;
        property D[const k: SOString]: Double read GetD write PutD;
        property B[const k: SOString]: Boolean read GetB write PutB;
    {$IFDEF SUPER_METHOD}
        property M[const k: SOString]: TSuperMethod read GetM write PutM;
    {$ENDIF}
        property N[const k: SOString]: ISuperObject read GetN write PutN;
        property C[const k: SOString]: Currency read GetC write PutC;
    
        function GetValues: ISuperObject;
        function GetNames: ISuperObject;
        function Find(const k: SOString; var value: ISuperObject): Boolean;
      end;
    
      TSuperAvlIterator = class
      private
        FTree: TSuperAvlTree;
    
        // WenTao 新的遍历方法只需要一个索引即可。
        FCurNameIndex: Integer;
    
        (* 旧的代码。
        FBranch: TSuperAvlBitArray;
        FDepth: LongInt;
        FPath: array[0..SUPER_AVL_MAX_DEPTH - 2] of TSuperAvlEntry;
        *)
    
      public
        constructor Create(tree: TSuperAvlTree); virtual;
    
        // WenTao 新的 Search 只支持等于的查找,不过原库中也没有用过非等于的查找。
        procedure Search(const k: SOString);
    
        // 旧的代码:
        // procedure Search(const k: SOString; st: TSuperAvlSearchTypes = [stEQual]);
        procedure First;
        procedure Last;
        function GetIter: TSuperAvlEntry;
        procedure Next;
        procedure Prior;
        // delphi enumerator
        function MoveNext: Boolean;
        property Current: TSuperAvlEntry read GetIter;
      end;
    
      TSuperObjectArray = array[0..(high(Integer) div sizeof(TSuperObject))-1] of ISuperObject;
      PSuperObjectArray = ^TSuperObjectArray;
    
      TSuperArray = class
      private
        FArray: PSuperObjectArray;
        FLength: Integer;
        FSize: Integer;
        procedure Expand(max: Integer);
      protected
        function GetO(const index: integer): ISuperObject;
        procedure PutO(const index: integer; const Value: ISuperObject);
        function GetB(const index: integer): Boolean;
        procedure PutB(const index: integer; Value: Boolean);
        function GetI(const index: integer): SuperInt;
        procedure PutI(const index: integer; Value: SuperInt);
        function GetD(const index: integer): Double;
        procedure PutD(const index: integer; Value: Double);
        function GetC(const index: integer): Currency;
        procedure PutC(const index: integer; Value: Currency);
        function GetS(const index: integer): SOString;
        procedure PutS(const index: integer; const Value: SOString);
    {$IFDEF SUPER_METHOD}
        function GetM(const index: integer): TSuperMethod;
        procedure PutM(const index: integer; Value: TSuperMethod);
    {$ENDIF}
        function GetN(const index: integer): ISuperObject;
        procedure PutN(const index: integer; const Value: ISuperObject);
      public
        constructor Create; virtual;
        destructor Destroy; override;
        function Add(const Data: ISuperObject): Integer;
        function Delete(index: Integer): ISuperObject;
        procedure Insert(index: Integer; const value: ISuperObject);
        procedure Clear(all: boolean = false);
        procedure Pack(all: boolean);
        property Length: Integer read FLength;
    
        property N[const index: integer]: ISuperObject read GetN write PutN;
        property O[const index: integer]: ISuperObject read GetO write PutO; default;
        property B[const index: integer]: boolean read GetB write PutB;
        property I[const index: integer]: SuperInt read GetI write PutI;
        property D[const index: integer]: Double read GetD write PutD;
        property C[const index: integer]: Currency read GetC write PutC;
        property S[const index: integer]: SOString read GetS write PutS;
    {$IFDEF SUPER_METHOD}
        property M[const index: integer]: TSuperMethod read GetM write PutM;
    {$ENDIF}
      end;
    
      TSuperWriter = class
      public
        // abstact methods to overide
        function Append(buf: PSOChar; Size: Integer): Integer; overload; virtual; abstract;
        function Append(buf: PSOChar): Integer; overload; virtual; abstract;
        procedure Reset; virtual; abstract;
      end;
    
      TSuperWriterString = class(TSuperWriter)
      private
        FBuf: PSOChar;
        FBPos: integer;
        FSize: integer;
      public
        function Append(buf: PSOChar; Size: Integer): Integer; overload; override;
        function Append(buf: PSOChar): Integer; overload; override;
        procedure Reset; override;
        procedure TrimRight;
        constructor Create; virtual;
        destructor Destroy; override;
        function GetString: SOString;
        property Data: PSOChar read FBuf;
        property Size: Integer read FSize;
        property Position: integer read FBPos;
      end;
    
      TSuperWriterStream = class(TSuperWriter)
      private
        FStream: TStream;
      public
        function Append(buf: PSOChar): Integer; override;
        procedure Reset; override;
        constructor Create(AStream: TStream); reintroduce; virtual;
      end;
    
      TSuperAnsiWriterStream = class(TSuperWriterStream)
      public
        function Append(buf: PSOChar; Size: Integer): Integer; override;
      end;
    
      TSuperUnicodeWriterStream = class(TSuperWriterStream)
      public
        function Append(buf: PSOChar; Size: Integer): Integer; override;
      end;
    
      TSuperWriterFake = class(TSuperWriter)
      private
        FSize: Integer;
      public
        function Append(buf: PSOChar; Size: Integer): Integer; override;
        function Append(buf: PSOChar): Integer; override;
        procedure Reset; override;
        constructor Create; reintroduce; virtual;
        property size: integer read FSize;
      end;
    
      TSuperWriterSock = class(TSuperWriter)
      private
        FSocket: longint;
        FSize: Integer;
      public
        function Append(buf: PSOChar; Size: Integer): Integer; override;
        function Append(buf: PSOChar): Integer; override;
        procedure Reset; override;
        constructor Create(ASocket: longint); reintroduce; virtual;
        property Socket: longint read FSocket;
        property Size: Integer read FSize;
      end;
    
      TSuperTokenizerError = (
        teSuccess,
        teContinue,
        teDepth,
        teParseEof,
        teParseUnexpected,
        teParseNull,
        teParseBoolean,
        teParseNumber,
        teParseArray,
        teParseObjectKeyName,
        teParseObjectKeySep,
        teParseObjectValueSep,
        teParseString,
        teParseComment,
        teEvalObject,
        teEvalArray,
        teEvalMethod,
        teEvalInt
      );
    
      TSuperTokenerState = (
        tsEatws,
        tsStart,
        tsFinish,
        tsNull,
        tsCommentStart,
        tsComment,
        tsCommentEol,
        tsCommentEnd,
        tsString,
        tsStringEscape,
        tsIdentifier,
        tsEscapeUnicode,
        tsEscapeHexadecimal,
        tsBoolean,
        tsNumber,
        tsArray,
        tsArrayAdd,
        tsArraySep,
        tsObjectFieldStart,
        tsObjectField,
        tsObjectUnquotedField,
        tsObjectFieldEnd,
        tsObjectValue,
        tsObjectValueAdd,
        tsObjectSep,
        tsEvalProperty,
        tsEvalArray,
        tsEvalMethod,
        tsParamValue,
        tsParamPut,
        tsMethodValue,
        tsMethodPut
      );
    
      PSuperTokenerSrec = ^TSuperTokenerSrec;
      TSuperTokenerSrec = record
        state, saved_state: TSuperTokenerState;
        obj: ISuperObject;
        current: ISuperObject;
        field_name: SOString;
        parent: ISuperObject;
        gparent: ISuperObject;
      end;
    
      TSuperTokenizer = class
      public
        str: PSOChar;
        pb: TSuperWriterString;
        depth, is_double, floatcount, st_pos, char_offset: Integer;
        err:  TSuperTokenizerError;
        ucs_char: Word;
        quote_char: SOChar;
        stack: array[0..SUPER_TOKENER_MAX_DEPTH-1] of TSuperTokenerSrec;
        line, col: Integer;
      public
        constructor Create; virtual;
        destructor Destroy; override;
        procedure ResetLevel(adepth: integer);
        procedure Reset;
      end;
    
      // supported object types
      TSuperType = (
        stNull,
        stBoolean,
        stDouble,
        stCurrency,
        stInt,
        stObject,
        stArray,
        stString
    {$IFDEF SUPER_METHOD}
        ,stMethod
    {$ENDIF}
      );
    
      TSuperValidateError = (
        veRuleMalformated,
        veFieldIsRequired,
        veInvalidDataType,
        veFieldNotFound,
        veUnexpectedField,
        veDuplicateEntry,
        veValueNotInEnum,
        veInvalidLength,
        veInvalidRange
      );
    
      TSuperFindOption = (
        foCreatePath,
        foPutValue,
        foDelete
    {$IFDEF SUPER_METHOD}
        ,foCallMethod
    {$ENDIF}
      );
    
      TSuperFindOptions = set of TSuperFindOption;
      TSuperCompareResult = (cpLess, cpEqu, cpGreat, cpError);
      TSuperOnValidateError = procedure(sender: Pointer; error: TSuperValidateError; const objpath: SOString);
    
      TSuperEnumerator = class
      private
        FObj: ISuperObject;
        FObjEnum: TSuperAvlIterator;
        FCount: Integer;
      public
        constructor Create(const obj: ISuperObject); virtual;
        destructor Destroy; override;
        function MoveNext: Boolean;
        function GetCurrent: ISuperObject;
        property Current: ISuperObject read GetCurrent;
      end;
    
      TJsonFormatType = (ftOneLine, ftMultiLine, ftArray, ftObjectArray);
    
      ISuperObject = interface
      ['{4B86A9E3-E094-4E5A-954A-69048B7B6327}']
        function GetEnumerator: TSuperEnumerator;
        function GetDataType: TSuperType;
        function GetProcessing: boolean;
        procedure SetProcessing(value: boolean);
        function ForcePath(const path: SOString; dataType: TSuperType = stObject): ISuperObject;
        function Format(const str: SOString; BeginSep: SOChar = '%'; EndSep: SOChar = '%'): SOString;
    
        function GetO(const path: SOString): ISuperObject;
        procedure PutO(const path: SOString; const Value: ISuperObject);
        function GetB(const path: SOString): Boolean;
        procedure PutB(const path: SOString; Value: Boolean);
        function GetI(const path: SOString): SuperInt;
        procedure PutI(const path: SOString; Value: SuperInt);
        function GetD(const path: SOString): Double;
        procedure PutC(const path: SOString; Value: Currency);
        function GetC(const path: SOString): Currency;
        procedure PutD(const path: SOString; Value: Double);
        function GetS(const path: SOString): SOString;
        procedure PutS(const path: SOString; const Value: SOString);
    {$IFDEF SUPER_METHOD}
        function GetM(const path: SOString): TSuperMethod;
        procedure PutM(const path: SOString; Value: TSuperMethod);
    {$ENDIF}
        function GetA(const path: SOString): TSuperArray;
    
        // Null Object Design patern
        function GetN(const path: SOString): ISuperObject;
        procedure PutN(const path: SOString; const Value: ISuperObject);
    
        // Writers
        function Write(writer: TSuperWriter; indent: boolean; escape: boolean; level: integer): Integer;
        function SaveTo(stream: TStream; indent: boolean = false; escape: boolean = true): integer; overload;
        function SaveTo(const FileName: string; indent: boolean = false; escape: boolean = true): integer; overload;
        function SaveTo(socket: longint; indent: boolean = false; escape: boolean = true): integer; overload;
        function CalcSize(indent: boolean = false; escape: boolean = true): integer;
    
        // convert
        function AsBoolean: Boolean;
        function AsInteger: SuperInt;
        function AsDouble: Double;
        function AsCurrency: Currency;
        function AsString: SOString;
        function AsArray: TSuperArray;
        function AsObject: TSuperTableString;
    {$IFDEF SUPER_METHOD}
        function AsMethod: TSuperMethod;
    {$ENDIF}
        function AsJSon(indent: boolean = false; escape: boolean = true): SOString;
    
        procedure Clear(all: boolean = false);
        procedure Pack(all: boolean = false);
    
        property N[const path: SOString]: ISuperObject read GetN write PutN;
        property O[const path: SOString]: ISuperObject read GetO write PutO; default;
        property B[const path: SOString]: boolean read GetB write PutB;
        property I[const path: SOString]: SuperInt read GetI write PutI;
        property D[const path: SOString]: Double read GetD write PutD;
        property C[const path: SOString]: Currency read GetC write PutC;
        property S[const path: SOString]: SOString read GetS write PutS;
    {$IFDEF SUPER_METHOD}
        property M[const path: SOString]: TSuperMethod read GetM write PutM;
    {$ENDIF}
        property A[const path: SOString]: TSuperArray read GetA;
    
    {$IFDEF SUPER_METHOD}
        function call(const path: SOString; const param: ISuperObject = nil): ISuperObject; overload;
        function call(const path, param: SOString): ISuperObject; overload;
    {$ENDIF}
        // clone a node
        function Clone: ISuperObject;
        function Delete(const path: SOString): ISuperObject;
        // merges tow objects of same type, if reference is true then nodes are not cloned
        procedure Merge(const obj: ISuperObject; reference: boolean = false); overload;
        procedure Merge(const str: SOString); overload;
    
        // validate methods
        function Validate(const rules: SOString; const defs: SOString = ''; callback: TSuperOnValidateError = nil; sender: Pointer = nil): boolean; overload;
        function Validate(const rules: ISuperObject; const defs: ISuperObject = nil; callback: TSuperOnValidateError = nil; sender: Pointer = nil): boolean; overload;
    
        // compare
        function Compare(const obj: ISuperObject): TSuperCompareResult; overload;
        function Compare(const str: SOString): TSuperCompareResult; overload;
    
        // the data type
        function IsType(AType: TSuperType): boolean;
        property DataType: TSuperType read GetDataType;
        property Processing: boolean read GetProcessing write SetProcessing;
    
        function GetDataPtr: Pointer;
        procedure SetDataPtr(const Value: Pointer);
        property DataPtr: Pointer read GetDataPtr write SetDataPtr;
    
        // WenTao 新增加的排序、过滤接口。
    
        // eachProp: 遍历每一个值的属性
        // eachObj:  遍历每一个对象类型的属性
        procedure forEachForProperty(eachProp: TProc<{Key}String, {isLast: }Boolean>; eachObj: TProc<{Key}String, {isLast: }Boolean>);
    
        // 当 SuperObject 是 Array 时,统计每一个列的最大宽度。
        procedure calcMaxLen(lenDict: TDictionary<String, Integer>);
    
        // 按特写字段排序
        function sortByField(AFieldName: String; ADataType: TSuperType = stString): ISuperObject;
        function sort(onCompare: TFunc<ISuperObject, ISuperObject, Integer>): ISuperObject;
        function filterByField(AFieldName: String; AValue: Variant; ADataType: TSuperType = stString): ISuperObject;
        function filter(onCompare: TFunc<ISuperObject, Boolean>): ISuperObject;
        function forEachForArray(callback: TProc<{Index: }Integer, {item: }ISuperObject, {isLast: }Boolean>): ISuperObject;
        function findByField(AFieldName: String; AValue: Variant; ADataType: TSuperType = stString): ISuperObject;
        function find(onCompare: TFunc<ISuperObject, Boolean>): ISuperObject;
        function reverse: ISuperObject;
    
        {$IFDEF ToStringEx}
        function toStringEx(AJsonType: TJsonFormatType): String;
        {$ENDIF}
      end;
    
      TSuperObject = class(TObject, ISuperObject)
      private
        FRefCount: Integer;
        FProcessing: boolean;
        FDataType: TSuperType;
        FDataPtr: Pointer;
    {.$if true}
        FO: record
          case TSuperType of
            stBoolean: (c_boolean: boolean);
            stDouble: (c_double: double);
            stCurrency: (c_currency: Currency);
            stInt: (c_int: SuperInt);
            stObject: (c_object: TSuperTableString);
            stArray: (c_array: TSuperArray);
    {$IFDEF SUPER_METHOD}
            stMethod: (c_method: TSuperMethod);
    {$ENDIF}
          end;
    {.$ifend}
        FOString: SOString;
        function GetDataType: TSuperType;
        function GetDataPtr: Pointer;
        procedure SetDataPtr(const Value: Pointer);
        procedure needArray;
      protected
        function QueryInterface(const IID: TGUID; out Obj): HResult; virtual; stdcall;
        function _AddRef: Integer; virtual; stdcall;
        function _Release: Integer; virtual; stdcall;
    
        function GetO(const path: SOString): ISuperObject;
        procedure PutO(const path: SOString; const Value: ISuperObject);
        function GetB(const path: SOString): Boolean;
        procedure PutB(const path: SOString; Value: Boolean);
        function GetI(const path: SOString): SuperInt;
        procedure PutI(const path: SOString; Value: SuperInt);
        function GetD(const path: SOString): Double;
        procedure PutD(const path: SOString; Value: Double);
        procedure PutC(const path: SOString; Value: Currency);
        function GetC(const path: SOString): Currency;
        function GetS(const path: SOString): SOString;
        procedure PutS(const path: SOString; const Value: SOString);
    {$IFDEF SUPER_METHOD}
        function GetM(const path: SOString): TSuperMethod;
        procedure PutM(const path: SOString; Value: TSuperMethod);
    {$ENDIF}
        function GetA(const path: SOString): TSuperArray;
        function Write(writer: TSuperWriter; indent: boolean; escape: boolean; level: integer): Integer; virtual;
      public
        function GetEnumerator: TSuperEnumerator;
        procedure AfterConstruction; override;
        procedure BeforeDestruction; override;
        class function NewInstance: TObject; override;
        property RefCount: Integer read FRefCount;
    
        function GetProcessing: boolean;
        procedure SetProcessing(value: boolean);
    
        // Writers
        function SaveTo(stream: TStream; indent: boolean = false; escape: boolean = true): integer; overload;
        function SaveTo(const FileName: string; indent: boolean = false; escape: boolean = true): integer; overload;
        function SaveTo(socket: longint; indent: boolean = false; escape: boolean = true): integer; overload;
        function CalcSize(indent: boolean = false; escape: boolean = true): integer;
        function AsJSon(indent: boolean = false; escape: boolean = true): SOString;
    
        // parser  ... owned!
        class function ParseString(s: PSOChar; strict: Boolean; partial: boolean = true; const this: ISuperObject = nil; options: TSuperFindOptions = [];
           const put: ISuperObject = nil; dt: TSuperType = stNull): ISuperObject;
        class function ParseStream(stream: TStream; strict: Boolean; partial: boolean = true; const this: ISuperObject = nil; options: TSuperFindOptions = [];
           const put: ISuperObject = nil; dt: TSuperType = stNull): ISuperObject;
        class function ParseFile(const FileName: string; strict: Boolean; partial: boolean = true; const this: ISuperObject = nil; options: TSuperFindOptions = [];
           const put: ISuperObject = nil; dt: TSuperType = stNull): ISuperObject;
        class function ParseEx(tok: TSuperTokenizer; str: PSOChar; len: integer; strict: Boolean; const this: ISuperObject = nil;
          options: TSuperFindOptions = []; const put: ISuperObject = nil; dt: TSuperType = stNull): ISuperObject;
    
        // constructors / destructor
        constructor Create(jt: TSuperType = stObject); overload; virtual;
        constructor Create(b: boolean); overload; virtual;
        constructor Create(i: SuperInt); overload; virtual;
        constructor Create(d: double); overload; virtual;
        constructor CreateCurrency(c: Currency); overload; virtual;
        constructor Create(const s: SOString); overload; virtual;
    {$IFDEF SUPER_METHOD}
        constructor Create(m: TSuperMethod); overload; virtual;
    {$ENDIF}
        destructor Destroy; override;
    
        // convert
        function AsBoolean: Boolean; virtual;
        function AsInteger: SuperInt; virtual;
        function AsDouble: Double; virtual;
        function AsCurrency: Currency; virtual;
        function AsString: SOString; virtual;
        function AsArray: TSuperArray; virtual;
        function AsObject: TSuperTableString; virtual;
    {$IFDEF SUPER_METHOD}
        function AsMethod: TSuperMethod; virtual;
    {$ENDIF}
        procedure Clear(all: boolean = false); virtual;
        procedure Pack(all: boolean = false); virtual;
        function GetN(const path: SOString): ISuperObject;
        procedure PutN(const path: SOString; const Value: ISuperObject);
        function ForcePath(const path: SOString; dataType: TSuperType = stObject): ISuperObject;
        function Format(const str: SOString; BeginSep: SOChar = '%'; EndSep: SOChar = '%'): SOString;
    
        property N[const path: SOString]: ISuperObject read GetN write PutN;
        property O[const path: SOString]: ISuperObject read GetO write PutO; default;
        property B[const path: SOString]: boolean read GetB write PutB;
        property I[const path: SOString]: SuperInt read GetI write PutI;
        property D[const path: SOString]: Double read GetD write PutD;
        property C[const path: SOString]: Currency read GetC write PutC;
        property S[const path: SOString]: SOString read GetS write PutS;
    {$IFDEF SUPER_METHOD}
        property M[const path: SOString]: TSuperMethod read GetM write PutM;
    {$ENDIF}
        property A[const path: SOString]: TSuperArray read GetA;
    
    {$IFDEF SUPER_METHOD}
        function call(const path: SOString; const param: ISuperObject = nil): ISuperObject; overload; virtual;
        function call(const path, param: SOString): ISuperObject; overload; virtual;
    {$ENDIF}
        // clone a node
        function Clone: ISuperObject; virtual;
        function Delete(const path: SOString): ISuperObject;
        // merges tow objects of same type, if reference is true then nodes are not cloned
        procedure Merge(const obj: ISuperObject; reference: boolean = false); overload;
        procedure Merge(const str: SOString); overload;
    
        // validate methods
        function Validate(const rules: SOString; const defs: SOString = ''; callback: TSuperOnValidateError = nil; sender: Pointer = nil): boolean; overload;
        function Validate(const rules: ISuperObject; const defs: ISuperObject = nil; callback: TSuperOnValidateError = nil; sender: Pointer = nil): boolean; overload;
    
        // compare
        function Compare(const obj: ISuperObject): TSuperCompareResult; overload;
        function Compare(const str: SOString): TSuperCompareResult; overload;
    
        // the data type
        function IsType(AType: TSuperType): boolean;
        property DataType: TSuperType read GetDataType;
        // a data pointer to link to something ele, a treeview for example
        property DataPtr: Pointer read GetDataPtr write SetDataPtr;
        property Processing: boolean read GetProcessing;
    
        // WenTao 新增加的排序、过滤接口。
        procedure forEachForProperty(eachProp: TProc<{Key}String, {isLast: }Boolean>; eachObj: TProc<{Key}String, {isLast: }Boolean>);
    
        procedure calcMaxLen(lenDict: TDictionary<String, Integer>);
    
        function sortByField(AFieldName: String; ADataType: TSuperType = stString): ISuperObject;
        function sort(onCompare: TFunc<ISuperObject, ISuperObject, Integer>): ISuperObject;
        function filterByField(AFieldName: String; AValue: Variant; ADataType: TSuperType = stString): ISuperObject;
        function filter(onCompare: TFunc<ISuperObject, Boolean>): ISuperObject;
        function forEachForArray(callback: TProc<{Index: }Integer, {item: }ISuperObject, {isLast: }Boolean>): ISuperObject;
        function findByField(AFieldName: String; AValue: Variant; ADataType: TSuperType = stString): ISuperObject;
        function find(onCompare: TFunc<ISuperObject, Boolean>): ISuperObject;
        function reverse: ISuperObject;
    
        {$IFDEF ToStringEx}
        class function escapeValue(valueStr: SOString): SOString;
        function toStringEx(AJsonType: TJsonFormatType): String;
        {$ENDIF}
      end;
    
    {$IFDEF HAVE_RTTI}
      TSuperRttiContext = class;
    
      TSerialFromJson = function(ctx: TSuperRttiContext; const obj: ISuperObject; var Value: TValue): Boolean;
      TSerialToJson = function(ctx: TSuperRttiContext; var value: TValue; const index: ISuperObject): ISuperObject;
    
      TSuperAttribute = class(TCustomAttribute)
      private
        FName: string;
      public
        constructor Create(const AName: string);
        property Name: string read FName;
      end;
    
      SOName = class(TSuperAttribute);
      SODefault = class(TSuperAttribute);
    
    
      TSuperRttiContext = class
      private
        class function GetFieldName(r: TRttiField): string;
        class function GetFieldDefault(r: TRttiField; const obj: ISuperObject): ISuperObject;
      public
        Context: TRttiContext;
        SerialFromJson: TDictionary<PTypeInfo, TSerialFromJson>;
        SerialToJson: TDictionary<PTypeInfo, TSerialToJson>;
        constructor Create; virtual;
        destructor Destroy; override;
        function FromJson(TypeInfo: PTypeInfo; const obj: ISuperObject; var Value: TValue): Boolean; virtual;
        function ToJson(var value: TValue; const index: ISuperObject): ISuperObject; virtual;
        function AsType<T>(const obj: ISuperObject): T;
        function AsJson<T>(const obj: T; const index: ISuperObject = nil): ISuperObject;
      end;
    
      TSuperObjectHelper = class helper for TObject
      public
        function ToJson(ctx: TSuperRttiContext = nil): ISuperObject;
        constructor FromJson(const obj: ISuperObject; ctx: TSuperRttiContext = nil); overload;
        constructor FromJson(const str: string; ctx: TSuperRttiContext = nil); overload;
      end;
    {$ENDIF}
    
      TSuperObjectIter = record
        key: SOString;
        val: ISuperObject;
        Ite: TSuperAvlIterator;
      end;
    
    function ObjectIsError(obj: TSuperObject): boolean;
    function ObjectIsType(const obj: ISuperObject; typ: TSuperType): boolean;
    function ObjectGetType(const obj: ISuperObject): TSuperType;
    
    function ObjectFindFirst(const obj: ISuperObject; var F: TSuperObjectIter): boolean;
    function ObjectFindNext(var F: TSuperObjectIter): boolean;
    procedure ObjectFindClose(var F: TSuperObjectIter);
    
    function SO(const s: SOString = '{}'): ISuperObject; overload;
    function SO(const value: Variant): ISuperObject; overload;
    function SO(const Args: array of const): ISuperObject; overload;
    
    function SA(const Args: array of const): ISuperObject; overload;
    
    function JavaToDelphiDateTime(const dt: int64): TDateTime;
    function DelphiToJavaDateTime(const dt: TDateTime): int64;
    function TryObjectToDate(const obj: ISuperObject; var dt: TDateTime): Boolean;
    function ISO8601DateToJavaDateTime(const str: SOString; var ms: Int64): Boolean;
    function ISO8601DateToDelphiDateTime(const str: SOString; var dt: TDateTime): Boolean;
    function DelphiDateTimeToISO8601Date(dt: TDateTime): SOString;
    {$IFDEF HAVE_RTTI}
    function UUIDToString(const g: TGUID): string;
    function StringToUUID(const str: string; var g: TGUID): Boolean;
    
    
    type
      TSuperInvokeResult = (
        irSuccess,
        irMethothodError,  // method don't exist
        irParamError,     // invalid parametters
        irError            // other error
      );
    
    function TrySOInvoke(var ctx: TSuperRttiContext; const obj: TValue; const method: string; const params: ISuperObject; var Return: ISuperObject): TSuperInvokeResult; overload;
    function SOInvoke(const obj: TValue; const method: string; const params: ISuperObject; ctx: TSuperRttiContext = nil): ISuperObject; overload;
    function SOInvoke(const obj: TValue; const method: string; const params: string; ctx: TSuperRttiContext = nil): ISuperObject; overload;
    {$ENDIF}
    
    implementation
    uses
    {$IFDEF ToStringEx} wtStrUtility, {$ENDIF}
    {$IFDEF UNIX}
      baseunix, unix, DateUtils
    {$ELSE}
      Windows
    {$ENDIF}
    {$IFDEF FPC}
      ,sockets
    {$ELSE}
      ,WinSock
    {$ENDIF};
    
    {$IFDEF DEBUG}
    var
      debugcount: integer = 0;
    {$ENDIF}
    
    const
      super_number_chars_set = ['0'..'9','.','+','-','e','E'];
      super_hex_chars: PSOChar = '0123456789abcdef';
      super_hex_chars_set = ['0'..'9','a'..'f','A'..'F'];
    
      ESC_BS: PSOChar = '\b';
      ESC_LF: PSOChar = '\n';
      ESC_CR: PSOChar = '\r';
      ESC_TAB: PSOChar = '\t';
      ESC_FF: PSOChar = '\f';
      ESC_QUOT: PSOChar = '\"';
      ESC_SL: PSOChar = '\\';
      ESC_SR: PSOChar = '\/';
      ESC_ZERO: PSOChar = '\u0000';
    
      TOK_CRLF: PSOChar = #13#10;
      TOK_SP: PSOChar = #32;
      TOK_BS: PSOChar = #8;
      TOK_TAB: PSOChar = #9;
      TOK_LF: PSOChar = #10;
      TOK_FF: PSOChar = #12;
      TOK_CR: PSOChar = #13;
    //  TOK_SL: PSOChar = '\';
    //  TOK_SR: PSOChar = '/';
      TOK_NULL: PSOChar = 'null';
      TOK_CBL: PSOChar = '{'; // curly bracket left
      TOK_CBR: PSOChar = '}'; // curly bracket right
      TOK_ARL: PSOChar = '[';
      TOK_ARR: PSOChar = ']';
      TOK_ARRAY: PSOChar = '[]';
      TOK_OBJ: PSOChar = '{}'; // empty object
      TOK_COM: PSOChar = ','; // Comma
      TOK_DQT: PSOChar = '"'; // Double Quote
      TOK_TRUE: PSOChar = 'true';
      TOK_FALSE: PSOChar = 'false';
    
    {$if (sizeof(Char) = 1)}
    function StrLComp(const Str1, Str2: PSOChar; MaxLen: Cardinal): Integer;
    var
      P1, P2: PWideChar;
      I: Cardinal;
      C1, C2: WideChar;
    begin
      P1 := Str1;
      P2 := Str2;
      I := 0;
      while I < MaxLen do
      begin
        C1 := P1^;
        C2 := P2^;
    
        if (C1 <> C2) or (C1 = #0) then
        begin
          Result := Ord(C1) - Ord(C2);
          Exit;
        end;
    
        Inc(P1);
        Inc(P2);
        Inc(I);
      end;
      Result := 0;
    end;
    
    function StrComp(const Str1, Str2: PSOChar): Integer;
    var
      P1, P2: PWideChar;
      C1, C2: WideChar;
    begin
      P1 := Str1;
      P2 := Str2;
      while True do
      begin
        C1 := P1^;
        C2 := P2^;
    
        if (C1 <> C2) or (C1 = #0) then
        begin
          Result := Ord(C1) - Ord(C2);
          Exit;
        end;
    
        Inc(P1);
        Inc(P2);
      end;
    end;
    
    function StrLen(const Str: PSOChar): Cardinal;
    var
      p: PSOChar;
    begin
      Result := 0;
      if Str <> nil then
      begin
        p := Str;
        while p^ <> #0 do inc(p);
        Result := (p - Str);
      end;
    end;
    {$ifend}
    
    function FloatToJson(const value: Double): SOString;
    var
      p: PSOChar;
    begin
      Result := FloatToStr(value);
      if DecimalSeparator <> '.' then
      begin
        p := PSOChar(Result);
        while p^ <> #0 do
          if p^ <> SOChar(DecimalSeparator) then
          inc(p) else
          begin
            p^ := '.';
            Exit;
          end;
      end;
    end;
    
    function CurrToJson(const value: Currency): SOString;
    var
      p: PSOChar;
    begin
      Result := CurrToStr(value);
      if DecimalSeparator <> '.' then
      begin
        p := PSOChar(Result);
        while p^ <> #0 do
          if p^ <> SOChar(DecimalSeparator) then
          inc(p) else
          begin
            p^ := '.';
            Exit;
          end;
      end;
    end;
    
    {$IFDEF UNIX}
    function GetTimeBias: integer;
    var
      TimeVal: TTimeVal;
      TimeZone: TTimeZone;
    begin
      fpGetTimeOfDay(@TimeVal, @TimeZone);
      Result := TimeZone.tz_minuteswest;
    end;
    {$ELSE}
    function GetTimeBias: integer;
    var
      tzi : TTimeZoneInformation;
    begin
      case GetTimeZoneInformation(tzi) of
        TIME_ZONE_ID_UNKNOWN : Result := tzi.Bias;
        TIME_ZONE_ID_STANDARD: Result := tzi.Bias + tzi.StandardBias;
        TIME_ZONE_ID_DAYLIGHT: Result := tzi.Bias + tzi.DaylightBias;
      else
        Result := 0;
      end;
    end;
    {$ENDIF}
    
    {$IFDEF UNIX}
    type
      ptm = ^tm;
      tm = record
        tm_sec: Integer;		(* Seconds: 0-59 (K&R says 0-61?) *)
        tm_min: Integer;		(* Minutes: 0-59 *)
        tm_hour: Integer;	(* Hours since midnight: 0-23 *)
        tm_mday: Integer;	(* Day of the month: 1-31 *)
        tm_mon: Integer;		(* Months *since* january: 0-11 *)
        tm_year: Integer;	(* Years since 1900 *)
        tm_wday: Integer;	(* Days since Sunday (0-6) *)
        tm_yday: Integer;	(* Days since Jan. 1: 0-365 *)
        tm_isdst: Integer;	(* +1 Daylight Savings Time, 0 No DST, -1 don't know *)
      end;
    
    function mktime(p: ptm): LongInt; cdecl; external;
    function gmtime(const t: PLongint): ptm; cdecl; external;
    function localtime (const t: PLongint): ptm; cdecl; external;
    
    function DelphiToJavaDateTime(const dt: TDateTime): Int64;
    var
      p: ptm;
      l, ms: Integer;
      v: Int64;
    begin
      v := Round((dt - 25569) * 86400000);
      ms := v mod 1000;
      l := v div 1000;
      p := localtime(@l);
      Result := Int64(mktime(p)) * 1000 + ms;
    end;
    
    function JavaToDelphiDateTime(const dt: int64): TDateTime;
    var
      p: ptm;
      l, ms: Integer;
    begin
      l := dt div 1000;
      ms := dt mod 1000;
      p := gmtime(@l);
      Result := EncodeDateTime(p^.tm_year+1900, p^.tm_mon+1, p^.tm_mday, p^.tm_hour, p^.tm_min, p^.tm_sec, ms);
    end;
    {$ELSE}
    
    {$IFDEF WINDOWSNT_COMPATIBILITY}
    function DayLightCompareDate(const date: PSystemTime;
      const compareDate: PSystemTime): Integer;
    var
      limit_day, dayinsecs, weekofmonth: Integer;
      First: Word;
    begin
      if (date^.wMonth < compareDate^.wMonth) then
      begin
        Result := -1; (* We are in a month before the date limit. *)
        Exit;
      end;
    
      if (date^.wMonth > compareDate^.wMonth) then
      begin
        Result := 1; (* We are in a month after the date limit. *)
        Exit;
      end;
    
      (* if year is 0 then date is in day-of-week format, otherwise
       * it's absolute date.
       *)
      if (compareDate^.wYear = 0) then
      begin
        (* compareDate.wDay is interpreted as number of the week in the month
         * 5 means: the last week in the month *)
        weekofmonth := compareDate^.wDay;
        (* calculate the day of the first DayOfWeek in the month *)
        First := (6 + compareDate^.wDayOfWeek - date^.wDayOfWeek + date^.wDay) mod 7 + 1;
        limit_day := First + 7 * (weekofmonth - 1);
        (* check needed for the 5th weekday of the month *)
        if (limit_day > MonthDays[(date^.wMonth=2) and IsLeapYear(date^.wYear)][date^.wMonth]) then
          dec(limit_day, 7);
      end
      else
        limit_day := compareDate^.wDay;
    
      (* convert to seconds *)
      limit_day := ((limit_day * 24  + compareDate^.wHour) * 60 + compareDate^.wMinute ) * 60;
      dayinsecs := ((date^.wDay * 24  + date^.wHour) * 60 + date^.wMinute ) * 60 + date^.wSecond;
      (* and compare *)
    
      if dayinsecs < limit_day then
        Result :=  -1 else
        if dayinsecs > limit_day then
          Result :=  1 else
          Result :=  0; (* date is equal to the date limit. *)
    end;
    
    function CompTimeZoneID(const pTZinfo: PTimeZoneInformation;
      lpFileTime: PFileTime; islocal: Boolean): LongWord;
    var
      ret: Integer;
      beforeStandardDate, afterDaylightDate: Boolean;
      llTime: Int64;
      SysTime: TSystemTime;
      ftTemp: TFileTime;
    begin
      llTime := 0;
    
      if (pTZinfo^.DaylightDate.wMonth <> 0) then
      begin
        (* if year is 0 then date is in day-of-week format, otherwise
         * it's absolute date.
         *)
        if ((pTZinfo^.StandardDate.wMonth = 0) or
            ((pTZinfo^.StandardDate.wYear = 0) and
            ((pTZinfo^.StandardDate.wDay < 1) or
            (pTZinfo^.StandardDate.wDay > 5) or
            (pTZinfo^.DaylightDate.wDay < 1) or
            (pTZinfo^.DaylightDate.wDay > 5)))) then
        begin
          SetLastError(ERROR_INVALID_PARAMETER);
          Result := TIME_ZONE_ID_INVALID;
          Exit;
        end;
    
        if (not islocal) then
        begin
          llTime := PInt64(lpFileTime)^;
          dec(llTime, Int64(pTZinfo^.Bias + pTZinfo^.DaylightBias) * 600000000);
          PInt64(@ftTemp)^ := llTime;
          lpFileTime := @ftTemp;
        end;
    
        FileTimeToSystemTime(lpFileTime^, SysTime);
    
        (* check for daylight savings *)
        ret := DayLightCompareDate(@SysTime, @pTZinfo^.StandardDate);
        if (ret = -2) then
        begin
          Result := TIME_ZONE_ID_INVALID;
          Exit;
        end;
    
        beforeStandardDate := ret < 0;
    
        if (not islocal) then
        begin
          dec(llTime, Int64(pTZinfo^.StandardBias - pTZinfo^.DaylightBias) * 600000000);
          PInt64(@ftTemp)^ := llTime;
          FileTimeToSystemTime(lpFileTime^, SysTime);
        end;
    
        ret := DayLightCompareDate(@SysTime, @pTZinfo^.DaylightDate);
        if (ret = -2) then
        begin
          Result := TIME_ZONE_ID_INVALID;
          Exit;
        end;
    
        afterDaylightDate := ret >= 0;
    
        Result := TIME_ZONE_ID_STANDARD;
        if( pTZinfo^.DaylightDate.wMonth < pTZinfo^.StandardDate.wMonth ) then
        begin
          (* Northern hemisphere *)
          if( beforeStandardDate and afterDaylightDate) then
            Result := TIME_ZONE_ID_DAYLIGHT;
        end else    (* Down south *)
          if( beforeStandardDate or afterDaylightDate) then
            Result := TIME_ZONE_ID_DAYLIGHT;
      end else
        (* No transition date *)
        Result := TIME_ZONE_ID_UNKNOWN;
    end;
    
    function GetTimezoneBias(const pTZinfo: PTimeZoneInformation;
      lpFileTime: PFileTime; islocal: Boolean; pBias: PLongint): Boolean;
    var
      bias: LongInt;
      tzid: LongWord;
    begin
      bias := pTZinfo^.Bias;
      tzid := CompTimeZoneID(pTZinfo, lpFileTime, islocal);
    
      if( tzid = TIME_ZONE_ID_INVALID) then
      begin
        Result := False;
        Exit;
      end;
      if (tzid = TIME_ZONE_ID_DAYLIGHT) then
        inc(bias, pTZinfo^.DaylightBias)
      else if (tzid = TIME_ZONE_ID_STANDARD) then
        inc(bias, pTZinfo^.StandardBias);
      pBias^ := bias;
      Result := True;
    end;
    
    function SystemTimeToTzSpecificLocalTime(
      lpTimeZoneInformation: PTimeZoneInformation;
      lpUniversalTime, lpLocalTime: PSystemTime): BOOL;
    var
      ft: TFileTime;
      lBias: LongInt;
      llTime: Int64;
      tzinfo: TTimeZoneInformation;
    begin
      if (lpTimeZoneInformation <> nil) then
        tzinfo := lpTimeZoneInformation^ else
        if (GetTimeZoneInformation(tzinfo) = TIME_ZONE_ID_INVALID) then
        begin
          Result := False;
          Exit;
        end;
    
      if (not SystemTimeToFileTime(lpUniversalTime^, ft)) then
      begin
        Result := False;
        Exit;
      end;
      llTime := PInt64(@ft)^;
      if (not GetTimezoneBias(@tzinfo, @ft, False, @lBias)) then
      begin
        Result := False;
        Exit;
      end;
      (* convert minutes to 100-nanoseconds-ticks *)
      dec(llTime, Int64(lBias) * 600000000);
      PInt64(@ft)^ := llTime;
      Result := FileTimeToSystemTime(ft, lpLocalTime^);
    end;
    
    function TzSpecificLocalTimeToSystemTime(
        const lpTimeZoneInformation: PTimeZoneInformation;
        const lpLocalTime: PSystemTime; lpUniversalTime: PSystemTime): BOOL;
    var
      ft: TFileTime;
      lBias: LongInt;
      t: Int64;
      tzinfo: TTimeZoneInformation;
    begin
      if (lpTimeZoneInformation <> nil) then
        tzinfo := lpTimeZoneInformation^
      else
        if (GetTimeZoneInformation(tzinfo) = TIME_ZONE_ID_INVALID) then
        begin
          Result := False;
          Exit;
        end;
    
      if (not SystemTimeToFileTime(lpLocalTime^, ft)) then
      begin
        Result := False;
        Exit;
      end;
      t := PInt64(@ft)^;
      if (not GetTimezoneBias(@tzinfo, @ft, True, @lBias)) then
      begin
        Result := False;
        Exit;
      end;
      (* convert minutes to 100-nanoseconds-ticks *)
      inc(t, Int64(lBias) * 600000000);
      PInt64(@ft)^ := t;
      Result := FileTimeToSystemTime(ft, lpUniversalTime^);
    end;
    {$ELSE}
    function TzSpecificLocalTimeToSystemTime(
      lpTimeZoneInformation: PTimeZoneInformation;
      lpLocalTime, lpUniversalTime: PSystemTime): BOOL; stdcall; external 'kernel32.dll';
    
    function SystemTimeToTzSpecificLocalTime(
      lpTimeZoneInformation: PTimeZoneInformation;
      lpUniversalTime, lpLocalTime: PSystemTime): BOOL; stdcall; external 'kernel32.dll';
    {$ENDIF}
    
    function JavaToDelphiDateTime(const dt: int64): TDateTime;
    var
      t: TSystemTime;
    begin
      DateTimeToSystemTime(25569 + (dt / 86400000), t);
      SystemTimeToTzSpecificLocalTime(nil, @t, @t);
      Result := SystemTimeToDateTime(t);
    end;
    
    function DelphiToJavaDateTime(const dt: TDateTime): int64;
    var
      t: TSystemTime;
    begin
      DateTimeToSystemTime(dt, t);
      TzSpecificLocalTimeToSystemTime(nil, @t, @t);
      Result := Round((SystemTimeToDateTime(t) - 25569) * 86400000)
    end;
    {$ENDIF}
    
    function ISO8601DateToJavaDateTime(const str: SOString; var ms: Int64): Boolean;
    type
      TState = (
        stStart, stYear, stMonth, stWeek, stWeekDay, stDay, stDayOfYear,
        stHour, stMin, stSec, stMs, stUTC, stGMTH, stGMTM,
        stGMTend, stEnd);
    
      TPerhaps = (yes, no, perhaps);
      TDateTimeInfo = record
        year: Word;
        month: Word;
        week: Word;
        weekday: Word;
        day: Word;
        dayofyear: Integer;
        hour: Word;
        minute: Word;
        second: Word;
        ms: Word;
        bias: Integer;
      end;
    
    var
      p: PSOChar;
      state: TState;
      pos, v: Word;
      sep: TPerhaps;
      inctz, havetz, havedate: Boolean;
      st: TDateTimeInfo;
      DayTable: PDayTable;
    
      function get(var v: Word; c: SOChar): Boolean; {$IFDEF HAVE_INLINE} inline;{$ENDIF}
      begin
        if (c < #256) and (AnsiChar(c) in ['0'..'9']) then
        begin
          Result := True;
          v := v * 10 + Ord(c) - Ord('0');
        end else
          Result := False;
      end;
    
    label
      error;
    begin
      p := PSOChar(str);
      sep := perhaps;
      state := stStart;
      pos := 0;
      FillChar(st, SizeOf(st), 0);
      havedate := True;
      inctz := False;
      havetz := False;
    
      while true do
      case state of
        stStart:
          case p^ of
            '0'..'9': state := stYear;
            'T', 't':
              begin
                state := stHour;
                pos := 0;
                inc(p);
                havedate := False;
              end;
          else
            goto error;
          end;
        stYear:
          case pos of
            0..1,3:
                  if get(st.year, p^) then
                  begin
                    Inc(pos);
                    Inc(p);
                  end else
                    goto error;
            2:    case p^ of
                    '0'..'9':
                      begin
                        st.year := st.year * 10 + ord(p^) - ord('0');
                        Inc(pos);
                        Inc(p);
                      end;
                    ':':
                      begin
                        havedate := false;
                        st.hour := st.year;
                        st.year := 0;
                        inc(p);
                        pos := 0;
                        state := stMin;
                        sep := yes;
                      end;
                  else
                    goto error;
                  end;
            4: case p^ of
                 '-': begin
                        pos := 0;
                        Inc(p);
                        sep := yes;
                        state := stMonth;
                      end;
                 '0'..'9':
                      begin
                        sep := no;
                        pos := 0;
                        state := stMonth;
                      end;
                 'W', 'w' :
                      begin
                        pos := 0;
                        Inc(p);
                        state := stWeek;
                      end;
                 'T', 't', ' ':
                      begin
                        state := stHour;
                        pos := 0;
                        inc(p);
                        st.month := 1;
                        st.day := 1;
                      end;
                 #0:
                      begin
                        st.month := 1;
                        st.day := 1;
                        state := stEnd;
                      end;
               else
                 goto error;
               end;
          end;
        stMonth:
          case pos of
            0:  case p^ of
                  '0'..'9':
                    begin
                      st.month := ord(p^) - ord('0');
                      Inc(pos);
                      Inc(p);
                    end;
                  'W', 'w':
                    begin
                      pos := 0;
                      Inc(p);
                      state := stWeek;
                    end;
                else
                  goto error;
                end;
            1:  if get(st.month, p^) then
                begin
                  Inc(pos);
                  Inc(p);
                end else
                  goto error;
            2: case p^ of
                 '-':
                      if (sep in [yes, perhaps])  then
                      begin
                        pos := 0;
                        Inc(p);
                        state := stDay;
                        sep := yes;
                      end else
                        goto error;
                 '0'..'9':
                      if sep in [no, perhaps] then
                      begin
                        pos := 0;
                        state := stDay;
                        sep := no;
                      end else
                      begin
                        st.dayofyear := st.month * 10 + Ord(p^) - Ord('0');
                        st.month := 0;
                        inc(p);
                        pos := 3;
                        state := stDayOfYear;
                      end;
                 'T', 't', ' ':
                      begin
                        state := stHour;
                        pos := 0;
                        inc(p);
                        st.day := 1;
                     end;
                 #0:
                   begin
                     st.day := 1;
                     state := stEnd;
                   end;
               else
                 goto error;
               end;
          end;
        stDay:
          case pos of
            0:  if get(st.day, p^) then
                begin
                  Inc(pos);
                  Inc(p);
                end else
                  goto error;
            1:  if get(st.day, p^) then
                begin
                  Inc(pos);
                  Inc(p);
                end else
                if sep in [no, perhaps] then
                begin
                  st.dayofyear := st.month * 10 + st.day;
                  st.day := 0;
                  st.month := 0;
                  state := stDayOfYear;
                end else
                  goto error;
    
            2: case p^ of
                 'T', 't', ' ':
                      begin
                        pos := 0;
                        Inc(p);
                        state := stHour;
                      end;
                 #0:  state := stEnd;
               else
                 goto error;
               end;
          end;
        stDayOfYear:
          begin
            if (st.dayofyear <= 0) then goto error;
            case p^ of
              'T', 't', ' ':
                   begin
                     pos := 0;
                     Inc(p);
                     state := stHour;
                   end;
              #0:  state := stEnd;
            else
              goto error;
            end;
          end;
        stWeek:
          begin
            case pos of
              0..1: if get(st.week, p^) then
                    begin
                      inc(pos);
                      inc(p);
                    end else
                      goto error;
              2: case p^ of
                   '-': if (sep in [yes, perhaps]) then
                        begin
                          Inc(p);
                          state := stWeekDay;
                          sep := yes;
                        end else
                          goto error;
                   '1'..'7':
                        if sep in [no, perhaps] then
                        begin
                          state := stWeekDay;
                          sep := no;
                        end else
                          goto error;
                 else
                   goto error;
                 end;
            end;
          end;
        stWeekDay:
          begin
            if (st.week > 0) and get(st.weekday, p^) then
            begin
              inc(p);
              v := st.year - 1;
              v := ((v * 365) + (v div 4) - (v div 100) + (v div 400)) mod 7 + 1;
              st.dayofyear := (st.weekday - v) + ((st.week) * 7) + 1;
              if v <= 4 then dec(st.dayofyear, 7);
              case p^ of
                'T', 't', ' ':
                     begin
                       pos := 0;
                       Inc(p);
                       state := stHour;
                     end;
                #0:  state := stEnd;
              else
                goto error;
              end;
            end else
              goto error;
          end;
        stHour:
          case pos of
            0:    case p^ of
                    '0'..'9':
                        if get(st.hour, p^) then
                        begin
                          inc(pos);
                          inc(p);
                          end else
                            goto error;
                    '-':
                      begin
                        inc(p);
                        state := stMin;
                      end;
                  else
                    goto error;
                  end;
            1:    if get(st.hour, p^) then
                  begin
                    inc(pos);
                    inc(p);
                  end else
                    goto error;
            2: case p^ of
                 ':': if sep in [yes, perhaps] then
                      begin
                        sep := yes;
                        pos := 0;
                        Inc(p);
                        state := stMin;
                      end else
                        goto error;
                 ',':
                    begin
                      Inc(p);
                      state := stMs;
                    end;
                 '+':
                   if havedate then
                   begin
                     state := stGMTH;
                     pos := 0;
                     v := 0;
                     inc(p);
                   end else
                     goto error;
                 '-':
                   if havedate then
                   begin
                     state := stGMTH;
                     pos := 0;
                     v := 0;
                     inc(p);
                     inctz := True;
                   end else
                     goto error;
                 'Z', 'z':
                      if havedate then
                        state := stUTC else
                        goto error;
                 '0'..'9':
                      if sep in [no, perhaps] then
                      begin
                        pos := 0;
                        state := stMin;
                        sep := no;
                      end else
                        goto error;
                 #0:  state := stEnd;
               else
                 goto error;
               end;
          end;
        stMin:
          case pos of
            0: case p^ of
                 '0'..'9':
                    if get(st.minute, p^) then
                    begin
                      inc(pos);
                      inc(p);
                    end else
                      goto error;
                 '-':
                    begin
                      inc(p);
                      state := stSec;
                    end;
               else
                 goto error;
               end;
            1: if get(st.minute, p^) then
               begin
                 inc(pos);
                 inc(p);
               end else
                 goto error;
            2: case p^ of
                 ':': if sep in [yes, perhaps] then
                      begin
                        pos := 0;
                        Inc(p);
                        state := stSec;
                        sep := yes;
                      end else
                        goto error;
                 ',':
                    begin
                      Inc(p);
                      state := stMs;
                    end;
                 '+':
                   if havedate then
                   begin
                     state := stGMTH;
                     pos := 0;
                     v := 0;
                     inc(p);
                   end else
                     goto error;
                 '-':
                   if havedate then
                   begin
                     state := stGMTH;
                     pos := 0;
                     v := 0;
                     inc(p);
                     inctz := True;
                   end else
                     goto error;
                 'Z', 'z':
                      if havedate then
                        state := stUTC else
                        goto error;
                 '0'..'9':
                      if sep in [no, perhaps] then
                      begin
                        pos := 0;
                        state := stSec;
                      end else
                        goto error;
                 #0:  state := stEnd;
               else
                 goto error;
               end;
          end;
        stSec:
          case pos of
            0..1: if get(st.second, p^) then
                  begin
                    inc(pos);
                    inc(p);
                  end else
                    goto error;
            2:    case p^ of
                   ',':
                      begin
                        Inc(p);
                        state := stMs;
                      end;
                   '+':
                     if havedate then
                     begin
                       state := stGMTH;
                       pos := 0;
                       v := 0;
                       inc(p);
                     end else
                       goto error;
                   '-':
                     if havedate then
                     begin
                       state := stGMTH;
                       pos := 0;
                       v := 0;
                       inc(p);
                       inctz := True;
                     end else
                       goto error;
                   'Z', 'z':
                        if havedate then
                          state := stUTC else
                          goto error;
                   #0: state := stEnd;
                  else
                   goto error;
                  end;
          end;
        stMs:
          case p^ of
            '0'..'9':
            begin
              st.ms := st.ms * 10 + ord(p^) - ord('0');
              inc(p);
            end;
            '+':
              if havedate then
              begin
                state := stGMTH;
                pos := 0;
                v := 0;
                inc(p);
              end else
                goto error;
            '-':
              if havedate then
              begin
                state := stGMTH;
                pos := 0;
                v := 0;
                inc(p);
                inctz := True;
              end else
                goto error;
            'Z', 'z':
                 if havedate then
                   state := stUTC else
                   goto error;
            #0: state := stEnd;
          else
            goto error;
          end;
        stUTC: // = GMT 0
          begin
            havetz := True;
            inc(p);
            if p^ = #0 then
              Break else
              goto error;
          end;
        stGMTH:
          begin
            havetz := True;
            case pos of
              0..1: if get(v, p^) then
                    begin
                      inc(p);
                      inc(pos);
                    end else
                      goto error;
              2:
                begin
                  st.bias := v * 60;
                  case p^ of
                    ':': if sep in [yes, perhaps] then
                         begin
                           state := stGMTM;
                           inc(p);
                           pos := 0;
                           v := 0;
                           sep := yes;
                         end else
                           goto error;
                    '0'..'9':
                         if sep in [no, perhaps] then
                         begin
                           state := stGMTM;
                           pos := 1;
                           sep := no;
                           inc(p);
                           v := ord(p^) - ord('0');
                         end else
                           goto error;
                    #0: state := stGMTend;
                  else
                    goto error;
                  end;
    
                end;
            end;
          end;
        stGMTM:
          case pos of
            0..1:  if get(v, p^) then
                   begin
                     inc(p);
                     inc(pos);
                   end else
                     goto error;
            2:  case p^ of
                  #0:
                    begin
                      state := stGMTend;
                      inc(st.Bias, v);
                    end;
                else
                  goto error;
                end;
          end;
        stGMTend:
          begin
            if not inctz then
              st.Bias := -st.bias;
            Break;
          end;
        stEnd:
        begin
    
          Break;
        end;
      end;
    
      if (st.hour >= 24) or (st.minute >= 60) or (st.second >= 60) or (st.ms >= 1000) or (st.week > 53)
        then goto error;
    
      if not havetz then
        st.bias := GetTimeBias;
    
      ms := st.ms + st.second * 1000 + (st.minute + st.bias) * 60000 + st.hour * 3600000;
      if havedate then
      begin
        DayTable := @MonthDays[IsLeapYear(st.year)];
        if st.month <> 0 then
        begin
          if not (st.month in [1..12]) or (DayTable^[st.month] < st.day) then
            goto error;
    
          for v := 1 to  st.month - 1 do
            Inc(ms, DayTable^[v] * 86400000);
        end;
        dec(st.year);
        ms := ms + (int64((st.year * 365) + (st.year div 4) - (st.year div 100) +
          (st.year div 400) + st.day + st.dayofyear - 719163) * 86400000);
      end;
    
     Result := True;
     Exit;
    error:
      Result := False;
    end;
    
    function ISO8601DateToDelphiDateTime(const str: SOString; var dt: TDateTime): Boolean;
    var
      ms: Int64;
    begin
      Result := ISO8601DateToJavaDateTime(str, ms);
      if Result then
        dt := JavaToDelphiDateTime(ms)
    end;
    
    function DelphiDateTimeToISO8601Date(dt: TDateTime): SOString;
    var
      year, month, day, hour, min, sec, msec: Word;
      tzh: SmallInt;
      tzm: Word;
      sign: SOChar;
      bias: Integer;
    begin
      DecodeDate(dt, year, month, day);
      DecodeTime(dt, hour, min, sec, msec);
      bias := GetTimeBias;
      tzh := Abs(bias) div 60;
      tzm := Abs(bias) - tzh * 60;
      if Bias > 0 then
        sign := '-' else
        sign := '+';
      Result := Format('%.4d-%.2d-%.2dT%.2d:%.2d:%.2d,%d%s%.2d:%.2d',
        [year, month, day, hour, min, sec, msec, sign, tzh, tzm]);
    end;
    
    function TryObjectToDate(const obj: ISuperObject; var dt: TDateTime): Boolean;
    var
      i: Int64;
    begin
      case ObjectGetType(obj) of
      stInt:
        begin
          dt := JavaToDelphiDateTime(obj.AsInteger);
          Result := True;
        end;
      stString:
        begin
          if ISO8601DateToJavaDateTime(obj.AsString, i) then
          begin
            dt := JavaToDelphiDateTime(i);
            Result := True;
          end else
            Result := TryStrToDateTime(obj.AsString, dt);
        end;
      else
        Result := False;
      end;
    end;
    
    function SO(const s: SOString): ISuperObject; overload;
    begin
      Result := TSuperObject.ParseString(PSOChar(s), False);
    end;
    
    function SA(const Args: array of const): ISuperObject; overload;
    type
      TByteArray = array[0..sizeof(integer) - 1] of byte;
      PByteArray = ^TByteArray;
    var
      j: Integer;
      intf: IInterface;
    begin
      Result := TSuperObject.Create(stArray);
      for j := 0 to length(Args) - 1 do
        with Result.AsArray do
        case TVarRec(Args[j]).VType of
          vtInteger : Add(TSuperObject.Create(TVarRec(Args[j]).VInteger));
          vtInt64   : Add(TSuperObject.Create(TVarRec(Args[j]).VInt64^));
          vtBoolean : Add(TSuperObject.Create(TVarRec(Args[j]).VBoolean));
          vtChar    : Add(TSuperObject.Create(SOString(TVarRec(Args[j]).VChar)));
          vtWideChar: Add(TSuperObject.Create(SOChar(TVarRec(Args[j]).VWideChar)));
          vtExtended: Add(TSuperObject.Create(TVarRec(Args[j]).VExtended^));
          vtCurrency: Add(TSuperObject.CreateCurrency(TVarRec(Args[j]).VCurrency^));
          vtString  : Add(TSuperObject.Create(SOString(TVarRec(Args[j]).VString^)));
          vtPChar   : Add(TSuperObject.Create(SOString(TVarRec(Args[j]).VPChar^)));
          vtAnsiString: Add(TSuperObject.Create(SOString(AnsiString(TVarRec(Args[j]).VAnsiString))));
          vtWideString: Add(TSuperObject.Create(SOString(PWideChar(TVarRec(Args[j]).VWideString))));
          vtInterface:
            if TVarRec(Args[j]).VInterface = nil then
              Add(nil) else
              if IInterface(TVarRec(Args[j]).VInterface).QueryInterface(ISuperObject, intf) = 0 then
                Add(ISuperObject(intf)) else
                Add(nil);
          vtPointer :
            if TVarRec(Args[j]).VPointer = nil then
              Add(nil) else
              Add(TSuperObject.Create(PtrInt(TVarRec(Args[j]).VPointer)));
          vtVariant:
            Add(SO(TVarRec(Args[j]).VVariant^));
          vtObject:
            if TVarRec(Args[j]).VPointer = nil then
              Add(nil) else
              Add(TSuperObject.Create(PtrInt(TVarRec(Args[j]).VPointer)));
          vtClass:
            if TVarRec(Args[j]).VPointer = nil then
              Add(nil) else
              Add(TSuperObject.Create(PtrInt(TVarRec(Args[j]).VPointer)));
    {$if declared(vtUnicodeString)}
          vtUnicodeString:
              Add(TSuperObject.Create(SOString(string(TVarRec(Args[j]).VUnicodeString))));
    {$ifend}
        else
          assert(false);
        end;
    end;
    
    function SO(const Args: array of const): ISuperObject; overload;
    var
      j: Integer;
      arr: ISuperObject;
    begin
      Result := TSuperObject.Create(stObject);
      arr := SA(Args);
      with arr.AsArray do
        for j := 0 to (Length div 2) - 1 do
          Result.AsObject.PutO(O[j*2].AsString, O[(j*2) + 1]);
    end;
    
    function SO(const value: Variant): ISuperObject; overload;
    begin
      with TVarData(value) do
      case VType of
        varNull:     Result := nil;
        varEmpty:    Result := nil;
        varSmallInt: Result := TSuperObject.Create(VSmallInt);
        varInteger:  Result := TSuperObject.Create(VInteger);
        varSingle:   Result := TSuperObject.Create(VSingle);
        varDouble:   Result := TSuperObject.Create(VDouble);
        varCurrency: Result := TSuperObject.CreateCurrency(VCurrency);
        varDate:     Result := TSuperObject.Create(DelphiToJavaDateTime(vDate));
        varOleStr:   Result := TSuperObject.Create(SOString(VOleStr));
        varBoolean:  Result := TSuperObject.Create(VBoolean);
        varShortInt: Result := TSuperObject.Create(VShortInt);
        varByte:     Result := TSuperObject.Create(VByte);
        varWord:     Result := TSuperObject.Create(VWord);
        varLongWord: Result := TSuperObject.Create(VLongWord);
        varInt64:    Result := TSuperObject.Create(VInt64);
        varString:   Result := TSuperObject.Create(SOString(AnsiString(VString)));
    {$if declared(varUString)}
        varUString:  Result := TSuperObject.Create(SOString(string(VUString)));
    {$ifend}
      else
        raise Exception.CreateFmt('Unsuported variant data type: %d', [VType]);
      end;
    end;
    
    function ObjectIsError(obj: TSuperObject): boolean;
    begin
      Result := PtrUInt(obj) > PtrUInt(-4000);
    end;
    
    function ObjectIsType(const obj: ISuperObject; typ: TSuperType): boolean;
    begin
      if obj <> nil then
        Result := typ = obj.DataType else
        Result := typ = stNull;
    end;
    
    function ObjectGetType(const obj: ISuperObject): TSuperType;
    begin
      if obj <> nil then
        Result := obj.DataType else
        Result := stNull;
    end;
    
    function ObjectFindFirst(const obj: ISuperObject; var F: TSuperObjectIter): boolean;
    var
      i: TSuperAvlEntry;
    begin
      if ObjectIsType(obj, stObject) then
      begin
        F.Ite := TSuperAvlIterator.Create(obj.AsObject);
        F.Ite.First;
        i := F.Ite.GetIter;
        if i <> nil then
        begin
          f.key := i.Name;
          f.val := i.Value;
          Result := true;
        end else
          Result := False;
      end else
        Result := False;
    end;
    
    function ObjectFindNext(var F: TSuperObjectIter): boolean;
    var
      i: TSuperAvlEntry;
    begin
      F.Ite.Next;
      i := F.Ite.GetIter;
      if i <> nil then
      begin
        f.key := i.FName;
        f.val := i.Value;
        Result := true;
      end else
        Result := False;
    end;
    
    procedure ObjectFindClose(var F: TSuperObjectIter);
    begin
      F.Ite.Free;
      F.val := nil;
    end;
    
    {$IFDEF HAVE_RTTI}
    
    function serialtoboolean(ctx: TSuperRttiContext; var value: TValue; const index: ISuperObject): ISuperObject;
    begin
      Result := TSuperObject.Create(TValueData(value).FAsSLong <> 0);
    end;
    
    function serialtodatetime(ctx: TSuperRttiContext; var value: TValue; const index: ISuperObject): ISuperObject;
    begin
      Result := TSuperObject.Create(DelphiToJavaDateTime(TValueData(value).FAsDouble));
    end;
    
    function serialtoguid(ctx: TSuperRttiContext; var value: TValue; const index: ISuperObject): ISuperObject;
    var
      g: TGUID;
    begin
      value.ExtractRawData(@g);
      Result := TSuperObject.Create(
        format('%.8x-%.4x-%.4x-%.2x%.2x-%.2x%.2x%.2x%.2x%.2x%.2x',
                  [g.D1, g.D2, g.D3,
                   g.D4[0], g.D4[1], g.D4[2],
                   g.D4[3], g.D4[4], g.D4[5],
                   g.D4[6], g.D4[7]])
      );
    end;
    
    function serialfromboolean(ctx: TSuperRttiContext; const obj: ISuperObject; var Value: TValue): Boolean;
    var
      o: ISuperObject;
    begin
      case ObjectGetType(obj) of
      stBoolean:
        begin
          TValueData(Value).FAsSLong := obj.AsInteger;
          Result := True;
        end;
      stInt:
        begin
          TValueData(Value).FAsSLong := ord(obj.AsInteger <> 0);
          Result := True;
        end;
      stString:
        begin
          o := SO(obj.AsString);
          if not ObjectIsType(o, stString) then
            Result := serialfromboolean(ctx, SO(obj.AsString), Value) else
            Result := False;
        end;
      else
        Result := False;
      end;
    end;
    
    function serialfromdatetime(ctx: TSuperRttiContext; const obj: ISuperObject; var Value: TValue): Boolean;
    var
      dt: TDateTime;
      i: Int64;
    begin
      case ObjectGetType(obj) of
      stInt:
        begin
          TValueData(Value).FAsDouble := JavaToDelphiDateTime(obj.AsInteger);
          Result := True;
        end;
      stString:
        begin
          if ISO8601DateToJavaDateTime(obj.AsString, i) then
          begin
            TValueData(Value).FAsDouble := JavaToDelphiDateTime(i);
            Result := True;
          end else
          if TryStrToDateTime(obj.AsString, dt) then
          begin
            TValueData(Value).FAsDouble := dt;
            Result := True;
          end else
            Result := False;
        end;
      else
        Result := False;
      end;
    end;
    
    function UuidFromString(p: PSOChar; Uuid: PGUID): Boolean;
    const
      hex2bin: array[#48..#102] of Byte = (
         0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0,
         0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0,10,11,12,13,14,15);
    type
      TState = (stEatSpaces, stStart, stHEX, stBracket, stEnd);
      TUUID = record
        case byte of
          0: (guid: TGUID);
          1: (bytes: array[0..15] of Byte);
          2: (words: array[0..7] of Word);
          3: (ints: array[0..3] of Cardinal);
          4: (i64s: array[0..1] of UInt64);
      end;
    
      function ishex(const c: Char): Boolean; {$IFDEF HAVE_INLINE} inline;{$ENDIF}
      begin
        result := (c < #256) and (AnsiChar(c) in ['0'..'9', 'a'..'z', 'A'..'Z'])
      end;
    var
      pos: Byte;
      state, saved: TState;
      bracket, separator: Boolean;
    label
      redo;
    begin
      FillChar(Uuid^, SizeOf(TGUID), 0);
      saved := stStart;
      state := stEatSpaces;
      bracket := false;
      separator := false;
      pos := 0;
      while true do
    redo:
      case state of
        stEatSpaces:
          begin
            while true do
              case p^ of
                ' ', #13, #10, #9: inc(p);
              else
                state := saved;
                goto redo;
              end;
          end;
        stStart:
          case p^ of
            '{':
              begin
                bracket := true;
                inc(p);
                state := stEatSpaces;
                saved := stHEX;
                pos := 0;
              end;
          else
            state := stHEX;
          end;
        stHEX:
          case pos of
            0..7:
              if ishex(p^) then
              begin
                Uuid.D1 := (Uuid.D1 * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            8:
              if (p^ = '-') then
              begin
                separator := true;
                inc(p);
                inc(pos)
              end else
                inc(pos);
            13,18,23:
               if separator then
               begin
                 if p^ <> '-' then
                   Exit(False);
                 inc(p);
                 inc(pos);
               end else
                 inc(pos);
            9..12:
              if ishex(p^) then
              begin
                TUUID(Uuid^).words[2] := (TUUID(Uuid^).words[2] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            14..17:
              if ishex(p^) then
              begin
                TUUID(Uuid^).words[3] := (TUUID(Uuid^).words[3] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            19..20:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[8] := (TUUID(Uuid^).bytes[8] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            21..22:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[9] := (TUUID(Uuid^).bytes[9] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            24..25:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[10] := (TUUID(Uuid^).bytes[10] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            26..27:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[11] := (TUUID(Uuid^).bytes[11] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            28..29:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[12] := (TUUID(Uuid^).bytes[12] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            30..31:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[13] := (TUUID(Uuid^).bytes[13] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            32..33:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[14] := (TUUID(Uuid^).bytes[14] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            34..35:
              if ishex(p^) then
              begin
                TUUID(Uuid^).bytes[15] := (TUUID(Uuid^).bytes[15] * 16) + hex2bin[p^];
                inc(p);
                inc(pos);
              end else
                Exit(False);
            36: if bracket then
                begin
                  state := stEatSpaces;
                  saved := stBracket;
                end else
                begin
                  state := stEatSpaces;
                  saved := stEnd;
                end;
          end;
        stBracket:
          begin
            if p^ <> '}' then
              Exit(False);
            inc(p);
            state := stEatSpaces;
            saved := stEnd;
          end;
        stEnd:
          begin
            if p^ <> #0 then
              Exit(False);
            Break;
          end;
      end;
      Result := True;
    end;
    
    function UUIDToString(const g: TGUID): string;
    begin
      Result := format('%.8x%.4x%.4x%.2x%.2x%.2x%.2x%.2x%.2x%.2x%.2x',
        [g.D1, g.D2, g.D3,
         g.D4[0], g.D4[1], g.D4[2],
         g.D4[3], g.D4[4], g.D4[5],
         g.D4[6], g.D4[7]]);
    end;
    
    function StringToUUID(const str: string; var g: TGUID): Boolean;
    begin
      Result := UuidFromString(PSOChar(str), @g);
    end;
    
    
    function serialfromguid(ctx: TSuperRttiContext; const obj: ISuperObject; var Value: TValue): Boolean;
    begin
      case ObjectGetType(obj) of
        stNull:
          begin
            FillChar(Value.GetReferenceToRawData^, SizeOf(TGUID), 0);
            Result := True;
          end;
        stString: Result := UuidFromString(PSOChar(obj.AsString), Value.GetReferenceToRawData);
      else
        Result := False;
      end;
    end;
    
    function SOInvoke(const obj: TValue; const method: string; const params: ISuperObject; ctx: TSuperRttiContext): ISuperObject; overload;
    var
      owned: Boolean;
    begin
      if ctx = nil then
      begin
        ctx := TSuperRttiContext.Create;
        owned := True;
      end else
        owned := False;
      try
        if TrySOInvoke(ctx, obj, method, params, Result) <> irSuccess then
          raise Exception.Create('Invalid method call');
      finally
        if owned then
          ctx.Free;
      end;
    end;
    
    function SOInvoke(const obj: TValue; const method: string; const params: string; ctx: TSuperRttiContext): ISuperObject; overload;
    begin
      Result := SOInvoke(obj, method, so(params), ctx)
    end;
    
    function TrySOInvoke(var ctx: TSuperRttiContext; const obj: TValue;
      const method: string; const params: ISuperObject;
      var Return: ISuperObject): TSuperInvokeResult;
    var
      t: TRttiInstanceType;
      m: TRttiMethod;
      a: TArray<TValue>;
      ps: TArray<TRttiParameter>;
      v: TValue;
      index: ISuperObject;
    
      function GetParams: Boolean;
      var
        i: Integer;
      begin
        case ObjectGetType(params) of
          stArray:
            for i := 0 to Length(ps) - 1 do
              if (pfOut in ps[i].Flags) then
                TValue.Make(nil, ps[i].ParamType.Handle, a[i]) else
                if not ctx.FromJson(ps[i].ParamType.Handle, params.AsArray[i], a[i]) then
                  Exit(False);
          stObject:
            for i := 0 to Length(ps) - 1 do
              if (pfOut in ps[i].Flags) then
                TValue.Make(nil, ps[i].ParamType.Handle, a[i]) else
                if not ctx.FromJson(ps[i].ParamType.Handle, params.AsObject[ps[i].Name], a[i]) then
                  Exit(False);
          stNull: ;
        else
          Exit(False);
        end;
        Result := True;
      end;
    
      procedure SetParams;
      var
        i: Integer;
      begin
        case ObjectGetType(params) of
          stArray:
            for i := 0 to Length(ps) - 1 do
              if (ps[i].Flags * [pfVar, pfOut]) <> [] then
                params.AsArray[i] := ctx.ToJson(a[i], index);
          stObject:
            for i := 0 to Length(ps) - 1 do
              if (ps[i].Flags * [pfVar, pfOut]) <> [] then
                params.AsObject[ps[i].Name] := ctx.ToJson(a[i], index);
        end;
      end;
    
    begin
      Result := irSuccess;
      index := SO;
      case obj.Kind of
        tkClass:
          begin
            t := TRttiInstanceType(ctx.Context.GetType(obj.AsObject.ClassType));
            m := t.GetMethod(method);
            if m = nil then Exit(irMethothodError);
            ps := m.GetParameters;
            SetLength(a, Length(ps));
            if not GetParams then Exit(irParamError);
            if m.IsClassMethod then
            begin
              v := m.Invoke(obj.AsObject.ClassType, a);
              Return := ctx.ToJson(v, index);
              SetParams;
            end else
            begin
              v := m.Invoke(obj, a);
              Return := ctx.ToJson(v, index);
              SetParams;
            end;
          end;
        tkClassRef:
          begin
            t := TRttiInstanceType(ctx.Context.GetType(obj.AsClass));
            m := t.GetMethod(method);
            if m = nil then Exit(irMethothodError);
            ps := m.GetParameters;
            SetLength(a, Length(ps));
    
            if not GetParams then Exit(irParamError);
            if m.IsClassMethod then
            begin
              v := m.Invoke(obj, a);
              Return := ctx.ToJson(v, index);
              SetParams;
            end else
              Exit(irError);
          end;
      else
        Exit(irError);
      end;
    end;
    
    {$ENDIF}
    
    { TSuperEnumerator }
    
    constructor TSuperEnumerator.Create(const obj: ISuperObject);
    begin
      FObj := obj;
      FCount := -1;
      if ObjectIsType(FObj, stObject) then
        FObjEnum := FObj.AsObject.GetEnumerator else
        FObjEnum := nil;
    end;
    
    destructor TSuperEnumerator.Destroy;
    begin
      if FObjEnum <> nil then
        FObjEnum.Free;
    end;
    
    function TSuperEnumerator.MoveNext: Boolean;
    begin
      case ObjectGetType(FObj) of
        stObject: Result := FObjEnum.MoveNext;
        stArray:
          begin
            inc(FCount);
            if FCount < FObj.AsArray.Length then
              Result := True else
              Result := False;
          end;
      else
        Result := false;
      end;
    end;
    
    function TSuperEnumerator.GetCurrent: ISuperObject;
    begin
      case ObjectGetType(FObj) of
        stObject: Result := FObjEnum.Current.Value;
        stArray: Result := FObj.AsArray.GetO(FCount);
      else
        Result := FObj;
      end;
    end;
    
    { TSuperObject }
    
    constructor TSuperObject.Create(jt: TSuperType);
    begin
      inherited Create;
    {$IFDEF DEBUG}
      InterlockedIncrement(debugcount);
    {$ENDIF}
    
      FProcessing := false;
      FDataPtr := nil;
      FDataType := jt;
      case FDataType of
        stObject: FO.c_object := TSuperTableString.Create;
        stArray: FO.c_array := TSuperArray.Create;
        stString: FOString := '';
      else
        FO.c_object := nil;
      end;
    end;
    
    constructor TSuperObject.Create(b: boolean);
    begin
      Create(stBoolean);
      FO.c_boolean := b;
    end;
    
    constructor TSuperObject.Create(i: SuperInt);
    begin
      Create(stInt);
      FO.c_int := i;
    end;
    
    constructor TSuperObject.Create(d: double);
    begin
      Create(stDouble);
      FO.c_double := d;
    end;
    
    constructor TSuperObject.CreateCurrency(c: Currency);
    begin
      Create(stCurrency);
      FO.c_currency := c;
    end;
    
    destructor TSuperObject.Destroy;
    begin
    {$IFDEF DEBUG}
      InterlockedDecrement(debugcount);
    {$ENDIF}
      case FDataType of
        stObject: FO.c_object.Free;
        stArray: FO.c_array.Free;
      end;
      inherited;
    end;
    
    function TSuperObject.Write(writer: TSuperWriter; indent: boolean; escape: boolean; level: integer): Integer;
    function DoEscape(str: PSOChar; len: Integer): Integer;
    var
      pos, start_offset: Integer;
      c: SOChar;
      buf: array[0..5] of SOChar;
    type
      TByteChar = record
      case integer of
        0: (a, b: Byte);
        1: (c: WideChar);
      end;
      begin
        if str = nil then
        begin
          Result := 0;
          exit;
        end;
        pos := 0; start_offset := 0;
        with writer do
        while pos < len do
        begin
          c := str[pos];
          case c of
            #8,#9,#10,#12,#13,'"','\','/':
              begin
                if(pos - start_offset > 0) then
                  Append(str + start_offset, pos - start_offset);
    
                if(c = #8) then Append(ESC_BS, 2)
                else if (c = #9) then Append(ESC_TAB, 2)
                else if (c = #10) then Append(ESC_LF, 2)
                else if (c = #12) then Append(ESC_FF, 2)
                else if (c = #13) then Append(ESC_CR, 2)
                else if (c = '"') then Append(ESC_QUOT, 2)
                else if (c = '\') then Append(ESC_SL, 2)
                else if (c = '/') then Append(ESC_SR, 2);
                inc(pos);
                start_offset := pos;
              end;
          else
            if (SOIChar(c) > 255) then
            begin
              if(pos - start_offset > 0) then
                Append(str + start_offset, pos - start_offset);
              buf[0] := '\';
              buf[1] := 'u';
              buf[2] := super_hex_chars[TByteChar(c).b shr 4];
              buf[3] := super_hex_chars[TByteChar(c).b and $f];
              buf[4] := super_hex_chars[TByteChar(c).a shr 4];
              buf[5] := super_hex_chars[TByteChar(c).a and $f];
              Append(@buf, 6);
              inc(pos);
              start_offset := pos;
            end else
            if (c < #32) or (c > #127) then
            begin
              if(pos - start_offset > 0) then
                Append(str + start_offset, pos - start_offset);
              buf[0] := '\';
              buf[1] := 'u';
              buf[2] := '0';
              buf[3] := '0';
              buf[4] := super_hex_chars[ord(c) shr 4];
              buf[5] := super_hex_chars[ord(c) and $f];
              Append(buf, 6);
              inc(pos);
              start_offset := pos;
            end else
              inc(pos);
          end;
        end;
        if(pos - start_offset > 0) then
          writer.Append(str + start_offset, pos - start_offset);
        Result := 0;
      end;
    
    function DoMinimalEscape(str: PSOChar; len: Integer): Integer;
    var
      pos, start_offset: Integer;
      c: SOChar;
    type
      TByteChar = record
      case integer of
        0: (a, b: Byte);
        1: (c: WideChar);
      end;
      begin
        if str = nil then
        begin
          Result := 0;
          exit;
        end;
        pos := 0; start_offset := 0;
        with writer do
        while pos < len do
        begin
          c := str[pos];
          case c of
            #0:
              begin
                if(pos - start_offset > 0) then
                  Append(str + start_offset, pos - start_offset);
                Append(ESC_ZERO, 6);
                inc(pos);
                start_offset := pos;
              end;
            '"':
              begin
                if(pos - start_offset > 0) then
                  Append(str + start_offset, pos - start_offset);
                Append(ESC_QUOT, 2);
                inc(pos);
                start_offset := pos;
              end;
            '\':
              begin
                if(pos - start_offset > 0) then
                  Append(str + start_offset, pos - start_offset);
                Append(ESC_SL, 2);
                inc(pos);
                start_offset := pos;
              end;
          else
            inc(pos);
          end;
        end;
        if(pos - start_offset > 0) then
          writer.Append(str + start_offset, pos - start_offset);
        Result := 0;
      end;
    
    
      procedure _indent(i: shortint; r: boolean);
      begin
        inc(level, i);
        if r then
          with writer do
          begin
    {$IFDEF MSWINDOWS}
            Append(TOK_CRLF, 2);
    {$ELSE}
            Append(TOK_LF, 1);
    {$ENDIF}
            for i := 0 to level - 1 do
              Append(TOK_SP, 1);
          end;
      end;
    var
      k,j: Integer;
      iter: TSuperObjectIter;
      st: AnsiString;
      val: ISuperObject;
    const
      ENDSTR_A: PSOChar = '": ';
      ENDSTR_B: PSOChar = '":';
    begin
    
      if FProcessing then
      begin
        Result := writer.Append(TOK_NULL, 4);
        Exit;
      end;
    
      FProcessing := true;
      with writer do
      try
        case FDataType of
          stObject:
            if FO.c_object.FCount > 0 then
            begin
              k := 0;
              Append(TOK_CBL, 1);
              if indent then _indent(1, false);
              if ObjectFindFirst(Self, iter) then
              repeat
      {$IFDEF SUPER_METHOD}
                if (iter.val = nil) or not ObjectIsType(iter.val, stMethod) then
                begin
      {$ENDIF}
                  if (iter.val = nil) or (not iter.val.Processing) then
                  begin
                    if(k <> 0) then
                      Append(TOK_COM, 1);
                    if indent then _indent(0, true);
                    Append(TOK_DQT, 1);
                    if escape then
                      doEscape(PSOChar(iter.key), Length(iter.key)) else
                      DoMinimalEscape(PSOChar(iter.key), Length(iter.key));
                    if indent then
                      Append(ENDSTR_A, 3) else
                      Append(ENDSTR_B, 2);
                    if(iter.val = nil) then
                      Append(TOK_NULL, 4) else
                      iter.val.write(writer, indent, escape, level);
                    inc(k);
                  end;
      {$IFDEF SUPER_METHOD}
                end;
      {$ENDIF}
              until not ObjectFindNext(iter);
              ObjectFindClose(iter);
              if indent then _indent(-1, true);
              Result := Append(TOK_CBR, 1);
            end else
              Result := Append(TOK_OBJ, 2);
          stBoolean:
            begin
              if (FO.c_boolean) then
                Result := Append(TOK_TRUE, 4) else
                Result := Append(TOK_FALSE, 5);
            end;
          stInt:
            begin
              str(FO.c_int, st);
              Result := Append(PSOChar(SOString(st)));
            end;
          stDouble:
            Result := Append(PSOChar(FloatToJson(FO.c_double)));
          stCurrency:
            begin
              Result := Append(PSOChar(CurrToJson(FO.c_currency)));
            end;
          stString:
            begin
              Append(TOK_DQT, 1);
              if escape then
                doEscape(PSOChar(FOString), Length(FOString)) else
                DoMinimalEscape(PSOChar(FOString), Length(FOString));
              Append(TOK_DQT, 1);
              Result := 0;
            end;
          stArray:
            if FO.c_array.FLength > 0 then
            begin
              Append(TOK_ARL, 1);
              if indent then _indent(1, true);
              k := 0;
              j := 0;
              while k < FO.c_array.FLength do
              begin
    
                val :=  FO.c_array.GetO(k);
      {$IFDEF SUPER_METHOD}
                if not ObjectIsType(val, stMethod) then
                begin
      {$ENDIF}
                  if (val = nil) or (not val.Processing) then
                  begin
                    if (j <> 0) then
                      Append(TOK_COM, 1);
                    if(val = nil) then
                      Append(TOK_NULL, 4) else
                      val.write(writer, indent, escape, level);
                    inc(j);
                  end;
      {$IFDEF SUPER_METHOD}
                end;
      {$ENDIF}
                inc(k);
              end;
              if indent then _indent(-1, false);
              Result := Append(TOK_ARR, 1);
            end else
              Result := Append(TOK_ARRAY, 2);
          stNull:
              Result := Append(TOK_NULL, 4);
        else
          Result := 0;
        end;
      finally
        FProcessing := false;
      end;
    end;
    
    function TSuperObject.IsType(AType: TSuperType): boolean;
    begin
      Result := AType = FDataType;
    end;
    
    function TSuperObject.AsBoolean: boolean;
    begin
      case FDataType of
        stBoolean: Result := FO.c_boolean;
        stInt: Result := (FO.c_int <> 0);
        stDouble: Result := (FO.c_double <> 0);
        stCurrency: Result := (FO.c_currency <> 0);
        stString: Result := (Length(FOString) <> 0);
        stNull: Result := False;
      else
        Result := True;
      end;
    end;
    
    function TSuperObject.AsInteger: SuperInt;
    var
      code: integer;
      cint: SuperInt;
    begin
      case FDataType of
        stInt: Result := FO.c_int;
        stDouble: Result := round(FO.c_double);
        stCurrency: Result := round(FO.c_currency);
        stBoolean: Result := ord(FO.c_boolean);
        stString:
          begin
            Val(FOString, cint, code);
            if code = 0 then
              Result := cint else
              Result := 0;
          end;
      else
        Result := 0;
      end;
    end;
    
    function TSuperObject.AsDouble: Double;
    var
      code: integer;
      cdouble: double;
    begin
      case FDataType of
        stDouble: Result := FO.c_double;
        stCurrency: Result := FO.c_currency;
        stInt: Result := FO.c_int;
        stBoolean: Result := ord(FO.c_boolean);
        stString:
          begin
            Val(FOString, cdouble, code);
            if code = 0 then
              Result := cdouble else
              Result := 0.0;
          end;
      else
        Result := 0.0;
      end;
    end;
    
    function TSuperObject.AsCurrency: Currency;
    var
      code: integer;
      cdouble: double;
    begin
      case FDataType of
        stDouble: Result := FO.c_double;
        stCurrency: Result := FO.c_currency;
        stInt: Result := FO.c_int;
        stBoolean: Result := ord(FO.c_boolean);
        stString:
          begin
            Val(FOString, cdouble, code);
            if code = 0 then
              Result := cdouble else
              Result := 0.0;
          end;
      else
        Result := 0.0;
      end;
    end;
    
    function TSuperObject.AsString: SOString;
    begin
      if FDataType = stString then
        Result := FOString else
        Result := AsJSon(false, false);
    end;
    
    function TSuperObject.GetEnumerator: TSuperEnumerator;
    begin
      Result := TSuperEnumerator.Create(Self);
    end;
    
    procedure TSuperObject.AfterConstruction;
    begin
      InterlockedDecrement(FRefCount);
    end;
    
    procedure TSuperObject.BeforeDestruction;
    begin
      if RefCount <> 0 then
        raise Exception.Create('Invalid pointer');
    end;
    
    function TSuperObject.AsArray: TSuperArray;
    begin
      if FDataType = stArray then
        Result := FO.c_array else
        Result := nil;
    end;
    
    function TSuperObject.AsObject: TSuperTableString;
    begin
      if FDataType = stObject then
        Result := FO.c_object else
        Result := nil;
    end;
    
    function TSuperObject.AsJSon(indent, escape: boolean): SOString;
    var
      pb: TSuperWriterString;
    begin
      pb := TSuperWriterString.Create;
      try
        if(Write(pb, indent, escape, 0) < 0) then
        begin
          Result := '';
          Exit;
        end;
        if pb.FBPos > 0 then
          Result := pb.FBuf else
          Result := '';
      finally
        pb.Free;
      end;
    end;
    
    class function TSuperObject.ParseString(s: PSOChar; strict: Boolean; partial: boolean; const this: ISuperObject;
      options: TSuperFindOptions; const put: ISuperObject; dt: TSuperType): ISuperObject;
    var
      tok: TSuperTokenizer;
      obj: ISuperObject;
    begin
      tok := TSuperTokenizer.Create;
      obj := ParseEx(tok, s, -1, strict, this, options, put, dt);
      if(tok.err <> teSuccess) or (not partial and (s[tok.char_offset] <> #0)) then
        Result := nil else
        Result := obj;
      tok.Free;
    end;
    
    class function TSuperObject.ParseStream(stream: TStream; strict: Boolean;
      partial: boolean; const this: ISuperObject; options: TSuperFindOptions;
       const put: ISuperObject; dt: TSuperType): ISuperObject;
    const
      BUFFER_SIZE = 1024;
    var
      tok: TSuperTokenizer;
      buffera: array[0..BUFFER_SIZE-1] of AnsiChar;
      bufferw: array[0..BUFFER_SIZE-1] of SOChar;
      bom: array[0..1] of byte;
      unicode: boolean;
      j, size: Integer;
      st: string;
    begin
      st := '';
      tok := TSuperTokenizer.Create;
    
      if (stream.Read(bom, sizeof(bom)) = 2) and (bom[0] = $FF) and (bom[1] = $FE) then
      begin
        unicode := true;
        size := stream.Read(bufferw, BUFFER_SIZE * SizeOf(SoChar)) div SizeOf(SoChar);
      end else
        begin
          unicode := false;
          stream.Seek(0, soFromBeginning);
          size := stream.Read(buffera, BUFFER_SIZE);
        end;
    
      while size > 0 do
      begin
        if not unicode then
          for j := 0 to size - 1 do
            bufferw[j] := SOChar(buffera[j]);
        ParseEx(tok, bufferw, size, strict, this, options, put, dt);
    
        if tok.err = teContinue then
          begin
            if not unicode then
              size := stream.Read(buffera, BUFFER_SIZE) else
              size := stream.Read(bufferw, BUFFER_SIZE * SizeOf(SoChar)) div SizeOf(SoChar);
          end else
          Break;
      end;
      if(tok.err <> teSuccess) or (not partial and (st[tok.char_offset] <> #0)) then
        Result := nil else
        Result := tok.stack[tok.depth].current;
      tok.Free;
    end;
    
    class function TSuperObject.ParseFile(const FileName: string; strict: Boolean;
      partial: boolean; const this: ISuperObject; options: TSuperFindOptions;
      const put: ISuperObject; dt: TSuperType): ISuperObject;
    var
      stream: TFileStream;
    begin
      stream := TFileStream.Create(FileName, fmOpenRead, fmShareDenyWrite);
      try
        Result := ParseStream(stream, strict, partial, this, options, put, dt);
      finally
        stream.Free;
      end;
    end;
    
    class function TSuperObject.ParseEx(tok: TSuperTokenizer; str: PSOChar; len: integer;
      strict: Boolean; const this: ISuperObject; options: TSuperFindOptions; const put: ISuperObject; dt: TSuperType): ISuperObject;
    
    const
      spaces = [#32,#8,#9,#10,#12,#13];
      delimiters = ['"', '.', '[', ']', '{', '}', '(', ')', ',', ':', #0];
      reserved = delimiters + spaces;
      path = ['a'..'z', 'A'..'Z', '.', '_'];
    
      function hexdigit(x: SOChar): byte; {$IFDEF HAVE_INLINE} inline;{$ENDIF}
      begin
        if x <= '9' then
          Result := byte(x) - byte('0') else
          Result := (byte(x) and 7) + 9;
      end;
      function min(v1, v2: integer): integer;{$IFDEF HAVE_INLINE} inline;{$ENDIF}
      begin if v1 < v2 then result := v1 else result := v2 end;
    
    var
      obj: ISuperObject;
      v: SOChar;
    {$IFDEF SUPER_METHOD}
      sm: TSuperMethod;
    {$ENDIF}
      numi: SuperInt;
      numd: Double;
      code: integer;
      TokRec: PSuperTokenerSrec;
      evalstack: integer;
      p: PSOChar;
    
      function IsEndDelimiter(v: AnsiChar): Boolean;
      begin
        if tok.depth > 0 then
          case tok.stack[tok.depth - 1].state of
            tsArrayAdd: Result := v in [',', ']', #0];
            tsObjectValueAdd: Result := v in [',', '}', #0];
          else
            Result := v = #0;
          end else
            Result := v = #0;
      end;
    
    label out, redo_char;
    begin
      evalstack := 0;
      obj := nil;
      Result := nil;
      TokRec := @tok.stack[tok.depth];
    
      tok.char_offset := 0;
      tok.err := teSuccess;
    
      repeat
        if (tok.char_offset = len) then
        begin
          if (tok.depth = 0) and (TokRec^.state = tsEatws) and
             (TokRec^.saved_state = tsFinish) then
            tok.err := teSuccess else
            tok.err := teContinue;
          goto out;
        end;
    
        v := str^;
    
        case v of
        #10:
          begin
            inc(tok.line);
            tok.col := 0;
          end;
        #9: inc(tok.col, 4);
        else
          inc(tok.col);
        end;
    
    redo_char:
        case TokRec^.state of
        tsEatws:
          begin
            if (SOIChar(v) < 256) and (AnsiChar(v) in spaces) then {nop} else
            if (v = '/') then
            begin
              tok.pb.Reset;
              tok.pb.Append(@v, 1);
              TokRec^.state := tsCommentStart;
            end else begin
              TokRec^.state := TokRec^.saved_state;
              goto redo_char;
            end
          end;
    
        tsStart:
          case v of
          '"',
          '''':
            begin
              TokRec^.state := tsString;
              tok.pb.Reset;
              tok.quote_char := v;
            end;
          '-':
            begin
              TokRec^.state := tsNumber;
              tok.pb.Reset;
              tok.is_double := 0;
              tok.floatcount := -1;
              goto redo_char;
            end;
    
          '0'..'9':
            begin
              if (tok.depth = 0) then
                case ObjectGetType(this) of
                stObject:
                  begin
                    TokRec^.state := tsIdentifier;
                    TokRec^.current := this;
                    goto redo_char;
                  end;
              end;
              TokRec^.state := tsNumber;
              tok.pb.Reset;
              tok.is_double := 0;
              tok.floatcount := -1;
              goto redo_char;
            end;
          '{':
            begin
              TokRec^.state := tsEatws;
              TokRec^.saved_state := tsObjectFieldStart;
              TokRec^.current := TSuperObject.Create(stObject);
            end;
          '[':
            begin
              TokRec^.state := tsEatws;
              TokRec^.saved_state := tsArray;
              TokRec^.current := TSuperObject.Create(stArray);
            end;
    {$IFDEF SUPER_METHOD}
          '(':
            begin
              if (tok.depth = 0) and ObjectIsType(this, stMethod) then
              begin
                TokRec^.current := this;
                TokRec^.state := tsParamValue;
              end;
            end;
    {$ENDIF}
          'N',
          'n':
            begin
              TokRec^.state := tsNull;
              tok.pb.Reset;
              tok.st_pos := 0;
              goto redo_char;
            end;
          'T',
          't',
          'F',
          'f':
            begin
              TokRec^.state := tsBoolean;
              tok.pb.Reset;
              tok.st_pos := 0;
              goto redo_char;
            end;
          else
            TokRec^.state := tsIdentifier;
            tok.pb.Reset;
            goto redo_char;
          end;
    
        tsFinish:
          begin
            if(tok.depth = 0) then goto out;
            obj := TokRec^.current;
            tok.ResetLevel(tok.depth);
            dec(tok.depth);
            TokRec := @tok.stack[tok.depth];
            goto redo_char;
          end;
    
        tsNull:
          begin
            tok.pb.Append(@v, 1);
            if (StrLComp(TOK_NULL, PSOChar(tok.pb.FBuf), min(tok.st_pos + 1, 4)) = 0) then
            begin
              if (tok.st_pos = 4) then
              if (((SOIChar(v) < 256) and (AnsiChar(v) in path)) or (SOIChar(v) >= 256)) then
                TokRec^.state := tsIdentifier else
              begin
                TokRec^.current := TSuperObject.Create(stNull);
                TokRec^.saved_state := tsFinish;
                TokRec^.state := tsEatws;
                goto redo_char;
              end;
            end else
            begin
              TokRec^.state := tsIdentifier;
              tok.pb.FBuf[tok.st_pos] := #0;
              dec(tok.pb.FBPos);
              goto redo_char;
            end;
            inc(tok.st_pos);
          end;
    
        tsCommentStart:
          begin
            if(v = '*') then
            begin
              TokRec^.state := tsComment;
            end else
            if (v = '/') then
            begin
              TokRec^.state := tsCommentEol;
            end else
            begin
              tok.err := teParseComment;
              goto out;
            end;
            tok.pb.Append(@v, 1);
          end;
    
        tsComment:
          begin
            if(v = '*') then
              TokRec^.state := tsCommentEnd;
            tok.pb.Append(@v, 1);
          end;
    
        tsCommentEol:
          begin
            if (v = #10) then
              TokRec^.state := tsEatws else
              tok.pb.Append(@v, 1);
          end;
    
        tsCommentEnd:
          begin
            tok.pb.Append(@v, 1);
            if (v = '/') then
              TokRec^.state := tsEatws else
              TokRec^.state := tsComment;
          end;
    
        tsString:
          begin
            if (v = tok.quote_char) then
            begin
              TokRec^.current := TSuperObject.Create(SOString(tok.pb.GetString));
              TokRec^.saved_state := tsFinish;
              TokRec^.state := tsEatws;
            end else
            if (v = '\') then
            begin
              TokRec^.saved_state := tsString;
              TokRec^.state := tsStringEscape;
            end else
            begin
              tok.pb.Append(@v, 1);
            end
          end;
    
        tsEvalProperty:
          begin
            if (TokRec^.current = nil) and (foCreatePath in options) then
            begin
              TokRec^.current := TSuperObject.Create(stObject);
              TokRec^.parent.AsObject.PutO(tok.pb.Fbuf, TokRec^.current)
            end else
            if not ObjectIsType(TokRec^.current, stObject) then
            begin
              tok.err := teEvalObject;
              goto out;
            end;
            tok.pb.Reset;
            TokRec^.state := tsIdentifier;
            goto redo_char;
          end;
    
        tsEvalArray:
          begin
            if (TokRec^.current = nil) and (foCreatePath in options) then
            begin
              TokRec^.current := TSuperObject.Create(stArray);
              TokRec^.parent.AsObject.PutO(tok.pb.Fbuf, TokRec^.current)
            end else
            if not ObjectIsType(TokRec^.current, stArray) then
            begin
              tok.err := teEvalArray;
              goto out;
            end;
            tok.pb.Reset;
            TokRec^.state := tsParamValue;
            goto redo_char;
          end;
    {$IFDEF SUPER_METHOD}
        tsEvalMethod:
          begin
            if ObjectIsType(TokRec^.current, stMethod) and assigned(TokRec^.current.AsMethod) then
            begin
              tok.pb.Reset;
              TokRec^.obj := TSuperObject.Create(stArray);
              TokRec^.state := tsMethodValue;
              goto redo_char;
            end else
            begin
              tok.err := teEvalMethod;
              goto out;
            end;
          end;
    
        tsMethodValue:
          begin
            case v of
            ')':
                TokRec^.state := tsIdentifier;
            else
              if (tok.depth >= SUPER_TOKENER_MAX_DEPTH-1) then
              begin
                tok.err := teDepth;
                goto out;
              end;
              inc(evalstack);
              TokRec^.state := tsMethodPut;
              inc(tok.depth);
              tok.ResetLevel(tok.depth);
              TokRec := @tok.stack[tok.depth];
              goto redo_char;
            end;
          end;
    
        tsMethodPut:
          begin
            TokRec^.obj.AsArray.Add(obj);
            case v of
              ',':
                begin
                  tok.pb.Reset;
                  TokRec^.saved_state := tsMethodValue;
                  TokRec^.state := tsEatws;
                end;
              ')':
                begin
                  if TokRec^.obj.AsArray.Length = 1 then
                    TokRec^.obj := TokRec^.obj.AsArray.GetO(0);
                  dec(evalstack);
                  tok.pb.Reset;
                  TokRec^.saved_state := tsIdentifier;
                  TokRec^.state := tsEatws;
                end;
            else
              tok.err := teEvalMethod;
              goto out;
            end;
          end;
    {$ENDIF}
        tsParamValue:
          begin
            case v of
            ']':
                TokRec^.state := tsIdentifier;
            else
              if (tok.depth >= SUPER_TOKENER_MAX_DEPTH-1) then
              begin
                tok.err := teDepth;
                goto out;
              end;
              inc(evalstack);
              TokRec^.state := tsParamPut;
              inc(tok.depth);
              tok.ResetLevel(tok.depth);
              TokRec := @tok.stack[tok.depth];
              goto redo_char;
            end;
          end;
    
        tsParamPut:
          begin
            dec(evalstack);
            TokRec^.obj := obj;
            tok.pb.Reset;
            TokRec^.saved_state := tsIdentifier;
            TokRec^.state := tsEatws;
            if v <> ']' then
            begin
              tok.err := teEvalArray;
              goto out;
            end;
          end;
    
        tsIdentifier:
          begin
            if (this = nil) then
            begin
              if (SOIChar(v) < 256) and IsEndDelimiter(AnsiChar(v)) then
              begin
                if not strict then
                begin
                  tok.pb.TrimRight;
                  TokRec^.current := TSuperObject.Create(tok.pb.Fbuf);
                  TokRec^.saved_state := tsFinish;
                  TokRec^.state := tsEatws;
                  goto redo_char;
                end else
                begin
                  tok.err := teParseString;
                  goto out;
                end;
              end else
              if (v = '\') then
              begin
                TokRec^.saved_state := tsIdentifier;
                TokRec^.state := tsStringEscape;
              end else
                tok.pb.Append(@v, 1);
            end else
            begin
             if (SOIChar(v) < 256) and (AnsiChar(v) in reserved) then
             begin
               TokRec^.gparent := TokRec^.parent;
               if TokRec^.current = nil then
                 TokRec^.parent := this else
                 TokRec^.parent := TokRec^.current;
    
                 case ObjectGetType(TokRec^.parent) of
                   stObject:
                     case v of
                       '.':
                         begin
                           TokRec^.state := tsEvalProperty;
                           if tok.pb.FBPos > 0 then
                             TokRec^.current := TokRec^.parent.AsObject.GetO(tok.pb.Fbuf);
                         end;
                       '[':
                         begin
                           TokRec^.state := tsEvalArray;
                           if tok.pb.FBPos > 0 then
                             TokRec^.current := TokRec^.parent.AsObject.GetO(tok.pb.Fbuf);
                         end;
                       '(':
                         begin
                           TokRec^.state := tsEvalMethod;
                           if tok.pb.FBPos > 0 then
                             TokRec^.current := TokRec^.parent.AsObject.GetO(tok.pb.Fbuf);
                         end;
                     else
                       if tok.pb.FBPos > 0 then
                         TokRec^.current := TokRec^.parent.AsObject.GetO(tok.pb.Fbuf);
                       if (foPutValue in options) and (evalstack = 0) then
                       begin
                         TokRec^.parent.AsObject.PutO(tok.pb.Fbuf, put);
                         TokRec^.current := put
                       end else
                       if (foDelete in options) and (evalstack = 0) then
                       begin
                         TokRec^.current := TokRec^.parent.AsObject.Delete(tok.pb.Fbuf);
                       end else
                       if (TokRec^.current = nil) and (foCreatePath in options) then
                       begin
                         TokRec^.current := TSuperObject.Create(dt);
                         TokRec^.parent.AsObject.PutO(tok.pb.Fbuf, TokRec^.current);
                       end;
                       TokRec^.current := TokRec^.parent.AsObject.GetO(tok.pb.Fbuf);
                       TokRec^.state := tsFinish;
                       goto redo_char;
                     end;
                   stArray:
                     begin
                       if TokRec^.obj <> nil then
                       begin
                         if not ObjectIsType(TokRec^.obj, stInt) or (TokRec^.obj.AsInteger < 0) then
                         begin
                           tok.err := teEvalInt;
                           TokRec^.obj := nil;
                           goto out;
                         end;
                         numi := TokRec^.obj.AsInteger;
                         TokRec^.obj := nil;
    
                         TokRec^.current := TokRec^.parent.AsArray.GetO(numi);
                         case v of
                           '.':
                             if (TokRec^.current = nil) and (foCreatePath in options) then
                             begin
                               TokRec^.current := TSuperObject.Create(stObject);
                               TokRec^.parent.AsArray.PutO(numi, TokRec^.current);
                             end else
                             if (TokRec^.current = nil) then
                             begin
                               tok.err := teEvalObject;
                               goto out;
                             end;
                           '[':
                             begin
                               if (TokRec^.current = nil) and (foCreatePath in options) then
                               begin
                                 TokRec^.current := TSuperObject.Create(stArray);
                                 TokRec^.parent.AsArray.Add(TokRec^.current);
                               end else
                               if (TokRec^.current = nil) then
                               begin
                                 tok.err := teEvalArray;
                                 goto out;
                               end;
                               TokRec^.state := tsEvalArray;
                             end;
                           '(': TokRec^.state := tsEvalMethod;
                         else
                           if (foPutValue in options) and (evalstack = 0) then
                           begin
                             TokRec^.parent.AsArray.PutO(numi, put);
                             TokRec^.current := put;
                           end else
                           if (foDelete in options) and (evalstack = 0) then
                           begin
                             TokRec^.current := TokRec^.parent.AsArray.Delete(numi);
                           end else
                             TokRec^.current := TokRec^.parent.AsArray.GetO(numi);
                           TokRec^.state := tsFinish;
                           goto redo_char
                         end;
                       end else
                       begin
                         case v of
                           '.':
                             begin
                               if (foPutValue in options) then
                               begin
                                 TokRec^.current := TSuperObject.Create(stObject);
                                 TokRec^.parent.AsArray.Add(TokRec^.current);
                               end else
                                 TokRec^.current := TokRec^.parent.AsArray.GetO(TokRec^.parent.AsArray.FLength - 1);
                             end;
                           '[':
                             begin
                               if (foPutValue in options) then
                               begin
                                 TokRec^.current := TSuperObject.Create(stArray);
                                 TokRec^.parent.AsArray.Add(TokRec^.current);
                               end else
                                 TokRec^.current := TokRec^.parent.AsArray.GetO(TokRec^.parent.AsArray.FLength - 1);
                               TokRec^.state := tsEvalArray;
                             end;
                           '(':
                             begin
                               if not (foPutValue in options) then
                                 TokRec^.current := TokRec^.parent.AsArray.GetO(TokRec^.parent.AsArray.FLength - 1) else
                                 TokRec^.current := nil;
    
                               TokRec^.state := tsEvalMethod;
                             end;
                         else
                           if (foPutValue in options) and (evalstack = 0) then
                           begin
                             TokRec^.parent.AsArray.Add(put);
                             TokRec^.current := put;
                           end else
                             if tok.pb.FBPos = 0 then
                               TokRec^.current := TokRec^.parent.AsArray.GetO(TokRec^.parent.AsArray.FLength - 1);
                           TokRec^.state := tsFinish;
                           goto redo_char
                         end;
                       end;
                     end;
    {$IFDEF SUPER_METHOD}
                   stMethod:
                     case v of
                       '.':
                         begin
                           TokRec^.current := nil;
                           sm := TokRec^.parent.AsMethod;
                           sm(TokRec^.gparent, TokRec^.obj, TokRec^.current);
                           TokRec^.obj := nil;
                         end;
                       '[':
                         begin
                           TokRec^.current := nil;
                           sm := TokRec^.parent.AsMethod;
                           sm(TokRec^.gparent, TokRec^.obj, TokRec^.current);
                           TokRec^.state := tsEvalArray;
                           TokRec^.obj := nil;
                         end;
                       '(':
                         begin
                           TokRec^.current := nil;
                           sm := TokRec^.parent.AsMethod;
                           sm(TokRec^.gparent, TokRec^.obj, TokRec^.current);
                           TokRec^.state := tsEvalMethod;
                           TokRec^.obj := nil;
                         end;
                     else
                       if not (foPutValue in options) or (evalstack > 0) then
                       begin
                         TokRec^.current := nil;
                         sm := TokRec^.parent.AsMethod;
                         sm(TokRec^.gparent, TokRec^.obj, TokRec^.current);
                         TokRec^.obj := nil;
                         TokRec^.state := tsFinish;
                         goto redo_char
                       end else
                       begin
                         tok.err := teEvalMethod;
                         TokRec^.obj := nil;
                         goto out;
                       end;
                     end;
    {$ENDIF}
                 end;
              end else
                tok.pb.Append(@v, 1);
            end;
          end;
    
        tsStringEscape:
          case v of
          'b',
          'n',
          'r',
          't',
          'f':
            begin
              if(v = 'b') then tok.pb.Append(TOK_BS, 1)
              else if(v = 'n') then tok.pb.Append(TOK_LF, 1)
              else if(v = 'r') then tok.pb.Append(TOK_CR, 1)
              else if(v = 't') then tok.pb.Append(TOK_TAB, 1)
              else if(v = 'f') then tok.pb.Append(TOK_FF, 1);
              TokRec^.state := TokRec^.saved_state;
            end;
          'u':
            begin
              tok.ucs_char := 0;
              tok.st_pos := 0;
              TokRec^.state := tsEscapeUnicode;
            end;
          'x':
            begin
              tok.ucs_char := 0;
              tok.st_pos := 0;
              TokRec^.state := tsEscapeHexadecimal;
            end
          else
            tok.pb.Append(@v, 1);
            TokRec^.state := TokRec^.saved_state;
          end;
    
        tsEscapeUnicode:
          begin
            if ((SOIChar(v) < 256) and (AnsiChar(v) in super_hex_chars_set)) then
            begin
              inc(tok.ucs_char, (Word(hexdigit(v)) shl ((3-tok.st_pos)*4)));
              inc(tok.st_pos);
              if (tok.st_pos = 4) then
              begin
                tok.pb.Append(@tok.ucs_char, 1);
                TokRec^.state := TokRec^.saved_state;
              end
            end else
            begin
              tok.err := teParseString;
              goto out;
            end
          end;
        tsEscapeHexadecimal:
          begin
            if ((SOIChar(v) < 256) and (AnsiChar(v) in super_hex_chars_set)) then
            begin
              inc(tok.ucs_char, (Word(hexdigit(v)) shl ((1-tok.st_pos)*4)));
              inc(tok.st_pos);
              if (tok.st_pos = 2) then
              begin
                tok.pb.Append(@tok.ucs_char, 1);
                TokRec^.state := TokRec^.saved_state;
              end
            end else
            begin
              tok.err := teParseString;
              goto out;
            end
          end;
        tsBoolean:
          begin
            tok.pb.Append(@v, 1);
            if (StrLComp('true', PSOChar(tok.pb.FBuf), min(tok.st_pos + 1, 4)) = 0) then
            begin
              if (tok.st_pos = 4) then
              if (((SOIChar(v) < 256) and (AnsiChar(v) in path)) or (SOIChar(v) >= 256)) then
                TokRec^.state := tsIdentifier else
              begin
                TokRec^.current := TSuperObject.Create(true);
                TokRec^.saved_state := tsFinish;
                TokRec^.state := tsEatws;
                goto redo_char;
              end
            end else
            if (StrLComp('false', PSOChar(tok.pb.FBuf), min(tok.st_pos + 1, 5)) = 0) then
            begin
              if (tok.st_pos = 5) then
              if (((SOIChar(v) < 256) and (AnsiChar(v) in path)) or (SOIChar(v) >= 256)) then
                TokRec^.state := tsIdentifier else
              begin
                TokRec^.current := TSuperObject.Create(false);
                TokRec^.saved_state := tsFinish;
                TokRec^.state := tsEatws;
                goto redo_char;
              end
            end else
            begin
              TokRec^.state := tsIdentifier;
              tok.pb.FBuf[tok.st_pos] := #0;
              dec(tok.pb.FBPos);
              goto redo_char;
            end;
            inc(tok.st_pos);
          end;
    
        tsNumber:
          begin
            if (SOIChar(v) < 256) and (AnsiChar(v) in super_number_chars_set) then
            begin
              tok.pb.Append(@v, 1);
              if (SOIChar(v) < 256) then
              case v of
              '.': begin
                     tok.is_double := 1;
                     tok.floatcount := 0;
                   end;
              'e','E':
                begin
                  tok.is_double := 1;
                  tok.floatcount := -1;
                end;
              '0'..'9':
                begin
    
                  if (tok.is_double = 1) and (tok.floatcount >= 0) then
                  begin
                    inc(tok.floatcount);
                    if tok.floatcount > 4 then
                      tok.floatcount := -1;
                  end;
                end;
              end;
            end else
            begin
              if (tok.is_double = 0) then
              begin
                val(tok.pb.FBuf, numi, code);
                if ObjectIsType(this, stArray) then
                begin
                  if (foPutValue in options) and (evalstack = 0) then
                  begin
                    this.AsArray.PutO(numi, put);
                    TokRec^.current := put;
                  end else
                  if (foDelete in options) and (evalstack = 0) then
                    TokRec^.current := this.AsArray.Delete(numi) else
                    TokRec^.current := this.AsArray.GetO(numi);
                end else
                  TokRec^.current := TSuperObject.Create(numi);
    
              end else
              if (tok.is_double <> 0) then
              begin
                if tok.floatcount >= 0 then
                begin
                  p := tok.pb.FBuf;
                  while p^ <> '.' do inc(p);
                  for code := 0 to tok.floatcount - 1 do
                  begin
                    p^ := p[1];
                    inc(p);
                  end;
                  p^ := #0;
                  val(tok.pb.FBuf, numi, code);
                  case tok.floatcount of
                    0: numi := numi * 10000;
                    1: numi := numi * 1000;
                    2: numi := numi * 100;
                    3: numi := numi * 10;
                  end;
                  TokRec^.current := TSuperObject.CreateCurrency(PCurrency(@numi)^);
                end else
                begin
                  val(tok.pb.FBuf, numd, code);
                  TokRec^.current := TSuperObject.Create(numd);
                end;
              end else
              begin
                tok.err := teParseNumber;
                goto out;
              end;
              TokRec^.saved_state := tsFinish;
              TokRec^.state := tsEatws;
              goto redo_char;
            end
          end;
    
        tsArray:
          begin
            if (v = ']') then
            begin
              TokRec^.saved_state := tsFinish;
              TokRec^.state := tsEatws;
            end else
            begin
              if(tok.depth >= SUPER_TOKENER_MAX_DEPTH-1) then
              begin
                tok.err := teDepth;
                goto out;
              end;
              TokRec^.state := tsArrayAdd;
              inc(tok.depth);
              tok.ResetLevel(tok.depth);
              TokRec := @tok.stack[tok.depth];
              goto redo_char;
            end
          end;
    
        tsArrayAdd:
          begin
            TokRec^.current.AsArray.Add(obj);
            TokRec^.saved_state := tsArraySep;
            TokRec^.state := tsEatws;
            goto redo_char;
          end;
    
        tsArraySep:
          begin
            if (v = ']') then
            begin
              TokRec^.saved_state := tsFinish;
              TokRec^.state := tsEatws;
            end else
            if (v = ',') then
            begin
              TokRec^.saved_state := tsArray;
              TokRec^.state := tsEatws;
            end else
            begin
              tok.err := teParseArray;
              goto out;
            end
          end;
    
        tsObjectFieldStart:
          begin
            if (v = '}') then
            begin
              TokRec^.saved_state := tsFinish;
              TokRec^.state := tsEatws;
            end else
            if (SOIChar(v) < 256) and (AnsiChar(v) in ['"', '''']) then
            begin
              tok.quote_char := v;
              tok.pb.Reset;
              TokRec^.state := tsObjectField;
            end else
            if not((SOIChar(v) < 256) and ((AnsiChar(v) in reserved) or strict)) then
            begin
              TokRec^.state := tsObjectUnquotedField;
              tok.pb.Reset;
              goto redo_char;
            end else
            begin
              tok.err := teParseObjectKeyName;
              goto out;
            end
          end;
    
        tsObjectField:
          begin
            if (v = tok.quote_char) then
            begin
              TokRec^.field_name := tok.pb.FBuf;
              TokRec^.saved_state := tsObjectFieldEnd;
              TokRec^.state := tsEatws;
            end else
            if (v = '\') then
            begin
              TokRec^.saved_state := tsObjectField;
              TokRec^.state := tsStringEscape;
            end else
            begin
              tok.pb.Append(@v, 1);
            end
          end;
    
        tsObjectUnquotedField:
          begin
            if (SOIChar(v) < 256) and (AnsiChar(v) in [':', #0]) then
            begin
              TokRec^.field_name := tok.pb.FBuf;
              TokRec^.saved_state := tsObjectFieldEnd;
              TokRec^.state := tsEatws;
              goto redo_char;
            end else
            if (v = '\') then
            begin
              TokRec^.saved_state := tsObjectUnquotedField;
              TokRec^.state := tsStringEscape;
            end else
              tok.pb.Append(@v, 1);
          end;
    
        tsObjectFieldEnd:
          begin
            if (v = ':') then
            begin
              TokRec^.saved_state := tsObjectValue;
              TokRec^.state := tsEatws;
            end else
            begin
              tok.err := teParseObjectKeySep;
              goto out;
            end
          end;
    
        tsObjectValue:
          begin
            if (tok.depth >= SUPER_TOKENER_MAX_DEPTH-1) then
            begin
              tok.err := teDepth;
              goto out;
            end;
            TokRec^.state := tsObjectValueAdd;
            inc(tok.depth);
            tok.ResetLevel(tok.depth);
            TokRec := @tok.stack[tok.depth];
            goto redo_char;
          end;
    
        tsObjectValueAdd:
          begin
            TokRec^.current.AsObject.PutO(TokRec^.field_name, obj);
            TokRec^.field_name := '';
            TokRec^.saved_state := tsObjectSep;
            TokRec^.state := tsEatws;
            goto redo_char;
          end;
    
        tsObjectSep:
          begin
            if (v = '}') then
            begin
              TokRec^.saved_state := tsFinish;
              TokRec^.state := tsEatws;
            end else
            if (v = ',') then
            begin
              TokRec^.saved_state := tsObjectFieldStart;
              TokRec^.state := tsEatws;
            end else
            begin
              tok.err := teParseObjectValueSep;
              goto out;
            end
          end;
        end;
        inc(str);
        inc(tok.char_offset);
      until v = #0;
    
      if(TokRec^.state <> tsFinish) and
         (TokRec^.saved_state <> tsFinish) then
        tok.err := teParseEof;
    
     out:
      if(tok.err in [teSuccess]) then
      begin
    {$IFDEF SUPER_METHOD}
        if (foCallMethod in options) and ObjectIsType(TokRec^.current, stMethod) and assigned(TokRec^.current.AsMethod) then
        begin
          sm := TokRec^.current.AsMethod;
          sm(TokRec^.parent, put, Result);
        end else
    {$ENDIF}
        Result := TokRec^.current;
      end else
        Result := nil;
    end;
    
    procedure TSuperObject.PutO(const path: SOString; const Value: ISuperObject);
    begin
      ParseString(PSOChar(path), true, False, self, [foCreatePath, foPutValue], Value);
    end;
    
    procedure TSuperObject.PutB(const path: SOString; Value: Boolean);
    begin
      ParseString(PSOChar(path), true, False, self, [foCreatePath, foPutValue], TSuperObject.Create(Value));
    end;
    
    procedure TSuperObject.PutD(const path: SOString; Value: Double);
    begin
      ParseString(PSOChar(path), true, False, self, [foCreatePath, foPutValue], TSuperObject.Create(Value));
    end;
    
    procedure TSuperObject.PutC(const path: SOString; Value: Currency);
    begin
      ParseString(PSOChar(path), true, False, self, [foCreatePath, foPutValue], TSuperObject.CreateCurrency(Value));
    end;
    
    procedure TSuperObject.PutI(const path: SOString; Value: SuperInt);
    begin
      ParseString(PSOChar(path), true, False, self, [foCreatePath, foPutValue], TSuperObject.Create(Value));
    end;
    
    procedure TSuperObject.PutS(const path: SOString; const Value: SOString);
    begin
      ParseString(PSOChar(path), true, False, self, [foCreatePath, foPutValue], TSuperObject.Create(Value));
    end;
    
    function TSuperObject.QueryInterface(const IID: TGUID; out Obj): HResult; stdcall;
    begin
      if GetInterface(IID, Obj) then
        Result := 0
      else
        Result := E_NOINTERFACE;
    end;
    
    function TSuperObject.SaveTo(stream: TStream; indent, escape: boolean): integer;
    var
      pb: TSuperWriterStream;
    begin
      if escape then
        pb := TSuperAnsiWriterStream.Create(stream) else
        pb := TSuperUnicodeWriterStream.Create(stream);
    
      if(Write(pb, indent, escape, 0) < 0) then
      begin
        pb.Reset;
        pb.Free;
        Result := 0;
        Exit;
      end;
      Result := stream.Size;
      pb.Free;
    end;
    
    function TSuperObject.CalcSize(indent, escape: boolean): integer;
    var
      pb: TSuperWriterFake;
    begin
      pb := TSuperWriterFake.Create;
      if(Write(pb, indent, escape, 0) < 0) then
      begin
        pb.Free;
        Result := 0;
        Exit;
      end;
      Result := pb.FSize;
      pb.Free;
    end;
    
    function TSuperObject.SaveTo(socket: Integer; indent, escape: boolean): integer;
    var
      pb: TSuperWriterSock;
    begin
      pb := TSuperWriterSock.Create(socket);
      if(Write(pb, indent, escape, 0) < 0) then
      begin
        pb.Free;
        Result := 0;
        Exit;
      end;
      Result := pb.FSize;
      pb.Free;
    end;
    
    constructor TSuperObject.Create(const s: SOString);
    begin
      Create(stString);
      FOString := s;
    end;
    
    procedure TSuperObject.Clear(all: boolean);
    begin
      if FProcessing then exit;
      FProcessing := true;
      try
        case FDataType of
          stBoolean: FO.c_boolean := false;
          stDouble: FO.c_double := 0.0;
          stCurrency: FO.c_currency := 0.0;
          stInt: FO.c_int := 0;
          stObject: FO.c_object.Clear(all);
          stArray: FO.c_array.Clear(all);
          stString: FOString := '';
    {$IFDEF SUPER_METHOD}
          stMethod: FO.c_method := nil;
    {$ENDIF}
        end;
      finally
        FProcessing := false;
      end;
    end;
    
    procedure TSuperObject.Pack(all: boolean = false);
    begin
      if FProcessing then exit;
      FProcessing := true;
      try
        case FDataType of
          stObject: FO.c_object.Pack(all);
          stArray: FO.c_array.Pack(all);
        end;
      finally
        FProcessing := false;
      end;
    end;
    
    function TSuperObject.GetN(const path: SOString): ISuperObject;
    begin
      Result := ParseString(PSOChar(path), False, true, self);
      if Result = nil then
        Result := TSuperObject.Create(stNull);
    end;
    
    procedure TSuperObject.PutN(const path: SOString; const Value: ISuperObject);
    begin
      if Value = nil then
        ParseString(PSOChar(path), False, True, self, [foCreatePath, foPutValue], TSuperObject.Create(stNull)) else
        ParseString(PSOChar(path), False, True, self, [foCreatePath, foPutValue], Value);
    end;
    
    function TSuperObject.Delete(const path: SOString): ISuperObject;
    begin
      Result := ParseString(PSOChar(path), False, true, self, [foDelete]);
    end;
    
    function TSuperObject.Clone: ISuperObject;
    var
      ite: TSuperObjectIter;
      arr: TSuperArray;
      j: integer;
    begin
      case FDataType of
        stBoolean: Result := TSuperObject.Create(FO.c_boolean);
        stDouble: Result := TSuperObject.Create(FO.c_double);
        stCurrency: Result := TSuperObject.CreateCurrency(FO.c_currency);
        stInt: Result := TSuperObject.Create(FO.c_int);
        stString: Result := TSuperObject.Create(FOString);
    {$IFDEF SUPER_METHOD}
        stMethod: Result := TSuperObject.Create(FO.c_method);
    {$ENDIF}
        stObject:
          begin
            Result := TSuperObject.Create(stObject);
            if ObjectFindFirst(self, ite) then
            with Result.AsObject do
            repeat
              PutO(ite.key, ite.val.Clone);
            until not ObjectFindNext(ite);
            ObjectFindClose(ite);
          end;
        stArray:
          begin
            Result := TSuperObject.Create(stArray);
            arr := AsArray;
            with Result.AsArray do
            for j := 0 to arr.Length - 1 do
              Add(arr.GetO(j).Clone);
          end;
      else
        Result := nil;
      end;
    end;
    
    procedure TSuperObject.Merge(const obj: ISuperObject; reference: boolean);
    var
      prop1, prop2: ISuperObject;
      ite: TSuperObjectIter;
      arr: TSuperArray;
      j: integer;
    begin
      if ObjectIsType(obj, FDataType) then
      case FDataType of
        stBoolean: FO.c_boolean := obj.AsBoolean;
        stDouble: FO.c_double := obj.AsDouble;
        stCurrency: FO.c_currency := obj.AsCurrency;
        stInt: FO.c_int := obj.AsInteger;
        stString: FOString := obj.AsString;
    {$IFDEF SUPER_METHOD}
        stMethod: FO.c_method := obj.AsMethod;
    {$ENDIF}
        stObject:
          begin
            if ObjectFindFirst(obj, ite) then
            with FO.c_object do
            repeat
              prop1 := FO.c_object.GetO(ite.key);
              if (prop1 <> nil) and (ite.val <> nil) and (prop1.DataType = ite.val.DataType) then
                prop1.Merge(ite.val) else
                if reference then
                  PutO(ite.key, ite.val) else
                  if ite.val <> nil then
                    PutO(ite.key, ite.val.Clone) else
                    PutO(ite.key, nil)
    
            until not ObjectFindNext(ite);
            ObjectFindClose(ite);
          end;
        stArray:
          begin
            arr := obj.AsArray;
            with FO.c_array do
            for j := 0 to arr.Length - 1 do
            begin
              prop1 := GetO(j);
              prop2 := arr.GetO(j);
              if (prop1 <> nil) and (prop2 <> nil) and (prop1.DataType = prop2.DataType) then
                prop1.Merge(prop2) else
                if reference then
                  PutO(j, prop2) else
                  if prop2 <> nil then
                    PutO(j, prop2.Clone) else
                    PutO(j, nil);
            end;
          end;
      end;
    end;
    
    procedure TSuperObject.Merge(const str: SOString);
    begin
      Merge(TSuperObject.ParseString(PSOChar(str), False), true);
    end;
    
    class function TSuperObject.NewInstance: TObject;
    begin
      Result := inherited NewInstance;
      TSuperObject(Result).FRefCount := 1;
    end;
    
    function TSuperObject.ForcePath(const path: SOString; dataType: TSuperType = stObject): ISuperObject;
    begin
      Result := ParseString(PSOChar(path), False, True, Self, [foCreatePath], nil, dataType);
    end;
    
    function TSuperObject.Format(const str: SOString; BeginSep: SOChar; EndSep: SOChar): SOString;
    var
      p1, p2: PSOChar;
    begin
      Result := '';
      p2 := PSOChar(str);
      p1 := p2;
      while true do
        if p2^ = BeginSep then
          begin
            if p2 > p1 then
              Result := Result + Copy(p1, 0, p2-p1);
            inc(p2);
            p1 := p2;
            while true do
              if p2^ = EndSep then Break else
              if p2^ = #0     then Exit else
                inc(p2);
            Result := Result + GetS(copy(p1, 0, p2-p1));
            inc(p2);
            p1 := p2;
          end
        else if p2^ = #0 then
          begin
            if p2 > p1 then
              Result := Result + Copy(p1, 0, p2-p1);
            Break;
          end else
            inc(p2);
    end;
    
    function TSuperObject.GetO(const path: SOString): ISuperObject;
    begin
      Result := ParseString(PSOChar(path), False, True, Self);
    end;
    
    function TSuperObject.GetA(const path: SOString): TSuperArray;
    var
      obj: ISuperObject;
    begin
      obj := ParseString(PSOChar(path), False, True, Self);
      if obj <> nil then
        Result := obj.AsArray else
        Result := nil;
    end;
    
    function TSuperObject.GetB(const path: SOString): Boolean;
    var
      obj: ISuperObject;
    begin
      obj := GetO(path);
      if obj <> nil then
        Result := obj.AsBoolean else
        Result := false;
    end;
    
    function TSuperObject.GetD(const path: SOString): Double;
    var
      obj: ISuperObject;
    begin
      obj := GetO(path);
      if obj <> nil then
        Result := obj.AsDouble else
        Result := 0.0;
    end;
    
    function TSuperObject.GetC(const path: SOString): Currency;
    var
      obj: ISuperObject;
    begin
      obj := GetO(path);
      if obj <> nil then
        Result := obj.AsCurrency else
        Result := 0.0;
    end;
    
    function TSuperObject.GetI(const path: SOString): SuperInt;
    var
      obj: ISuperObject;
    begin
      obj := GetO(path);
      if obj <> nil then
        Result := obj.AsInteger else
        Result := 0;
    end;
    
    function TSuperObject.GetDataPtr: Pointer;
    begin
      Result := FDataPtr;
    end;
    
    function TSuperObject.GetDataType: TSuperType;
    begin
      Result := FDataType
    end;
    
    function TSuperObject.GetS(const path: SOString): SOString;
    var
      obj: ISuperObject;
    begin
      obj := GetO(path);
      if obj <> nil then
        Result := obj.AsString else
        Result := '';
    end;
    
    function TSuperObject.SaveTo(const FileName: string; indent, escape: boolean): integer;
    var
      stream: TFileStream;
    begin
      stream := TFileStream.Create(FileName, fmCreate);
      try
        Result := SaveTo(stream, indent, escape);
      finally
        stream.Free;
      end;
    end;
    
    function TSuperObject.Validate(const rules: SOString; const defs: SOString = ''; callback: TSuperOnValidateError = nil; sender: Pointer = nil): boolean;
    begin
      Result := Validate(TSuperObject.ParseString(PSOChar(rules), False), TSuperObject.ParseString(PSOChar(defs), False), callback, sender);
    end;
    
    function TSuperObject.Validate(const rules: ISuperObject; const defs: ISuperObject = nil; callback: TSuperOnValidateError = nil; sender: Pointer = nil): boolean;
    type
      TDataType = (dtUnknown, dtStr, dtInt, dtFloat, dtNumber, dtText, dtBool,
                   dtMap, dtSeq, dtScalar, dtAny);
    var
      datatypes: ISuperObject;
      names: ISuperObject;
    
      function FindInheritedProperty(const prop: PSOChar; p: ISuperObject): ISuperObject;
      var
        o: ISuperObject;
        e: TSuperAvlEntry;
      begin
        o := p[prop];
        if o <> nil then
          result := o else
          begin
            o := p['inherit'];
            if (o <> nil) and ObjectIsType(o, stString) then
              begin
                e := names.AsObject.Search(o.AsString);
                if (e <> nil) then
                  Result := FindInheritedProperty(prop, e.Value) else
                  Result := nil;
              end else
                Result := nil;
          end;
      end;
    
      function FindDataType(o: ISuperObject): TDataType;
      var
        e: TSuperAvlEntry;
        obj: ISuperObject;
      begin
        obj := FindInheritedProperty('type', o);
        if obj <> nil then
        begin
          e := datatypes.AsObject.Search(obj.AsString);
          if  e <> nil then
            Result := TDataType(e.Value.AsInteger) else
            Result := dtUnknown;
        end else
          Result := dtUnknown;
      end;
    
      procedure GetNames(o: ISuperObject);
      var
        obj: ISuperObject;
        f: TSuperObjectIter;
      begin
        obj := o['name'];
        if ObjectIsType(obj, stString) then
          names[obj.AsString] := o;
    
        case FindDataType(o) of
          dtMap:
            begin
              obj := o['mapping'];
              if ObjectIsType(obj, stObject) then
              begin
                if ObjectFindFirst(obj, f) then
                repeat
                  if ObjectIsType(f.val, stObject) then
                    GetNames(f.val);
                until not ObjectFindNext(f);
                ObjectFindClose(f);
              end;
            end;
          dtSeq:
            begin
              obj := o['sequence'];
              if ObjectIsType(obj, stObject) then
                GetNames(obj);
            end;
        end;
      end;
    
      function FindInheritedField(const prop: SOString; p: ISuperObject): ISuperObject;
      var
        o: ISuperObject;
        e: TSuperAvlEntry;
      begin
        o := p['mapping'];
        if ObjectIsType(o, stObject) then
        begin
          o := o.AsObject.GetO(prop);
          if o <> nil then
          begin
            Result := o;
            Exit;
          end;
        end;
    
        o := p['inherit'];
        if ObjectIsType(o, stString) then
        begin
          e := names.AsObject.Search(o.AsString);
          if (e <> nil) then
            Result := FindInheritedField(prop, e.Value) else
            Result := nil;
        end else
          Result := nil;
      end;
    
      function InheritedFieldExist(const obj: ISuperObject; p: ISuperObject; const name: SOString = ''): boolean;
      var
       o: ISuperObject;
       e: TSuperAvlEntry;
       j: TSuperAvlIterator;
      begin
        Result := true;
        o := p['mapping'];
        if ObjectIsType(o, stObject) then
        begin
          j := TSuperAvlIterator.Create(o.AsObject);
          try
            j.First;
            e := j.GetIter;
            while e <> nil do
            begin
              if obj.AsObject.Search(e.Name) = nil then
              begin
                Result := False;
                if assigned(callback) then
                  callback(sender, veFieldNotFound, name + '.' + e.Name);
              end;
              j.Next;
              e := j.GetIter;
            end;
    
          finally
            j.Free;
          end;
        end;
    
        o := p['inherit'];
        if ObjectIsType(o, stString) then
        begin
          e := names.AsObject.Search(o.AsString);
          if (e <> nil) then
            Result := InheritedFieldExist(obj, e.Value, name) and Result;
        end;
      end;
    
      function getInheritedBool(f: PSOChar; p: ISuperObject; default: boolean = false): boolean;
      var
        o: ISuperObject;
      begin
        o := FindInheritedProperty(f, p);
        case ObjectGetType(o) of
          stBoolean: Result := o.AsBoolean;
          stNull: Result := Default;
        else
          Result := default;
          if assigned(callback) then
            callback(sender, veRuleMalformated, f);
        end;
      end;
    
      procedure GetInheritedFieldList(list: ISuperObject; p: ISuperObject);
      var
       o: ISuperObject;
       e: TSuperAvlEntry;
       i: TSuperAvlIterator;
      begin
        Result := true;
        o := p['mapping'];
        if ObjectIsType(o, stObject) then
        begin
          i := TSuperAvlIterator.Create(o.AsObject);
          try
            i.First;
            e := i.GetIter;
            while e <> nil do
            begin
              if list.AsObject.Search(e.Name) = nil then
                list[e.Name] := e.Value;
              i.Next;
              e := i.GetIter;
            end;
    
          finally
            i.Free;
          end;
        end;
    
        o := p['inherit'];
        if ObjectIsType(o, stString) then
        begin
          e := names.AsObject.Search(o.AsString);
          if (e <> nil) then
            GetInheritedFieldList(list, e.Value);
        end;
      end;
    
      function CheckEnum(o: ISuperObject; p: ISuperObject; name: SOString = ''): boolean;
      var
        enum: ISuperObject;
        i: integer;
      begin
        Result := false;
        enum := FindInheritedProperty('enum', p);
        case ObjectGetType(enum) of
          stArray:
            for i := 0 to enum.AsArray.Length - 1 do
              if (o.AsString = enum.AsArray[i].AsString) then
              begin
                Result := true;
                exit;
              end;
          stNull: Result := true;
        else
          Result := false;
          if assigned(callback) then
            callback(sender, veRuleMalformated, '');
          Exit;
        end;
    
        if (not Result) and assigned(callback) then
          callback(sender, veValueNotInEnum, name);
      end;
    
      function CheckLength(len: integer; p: ISuperObject; const objpath: SOString): boolean;
      var
        length, o: ISuperObject;
      begin
        result := true;
        length := FindInheritedProperty('length', p);
        case ObjectGetType(length) of
          stObject:
            begin
              o := length.AsObject.GetO('min');
              if (o <> nil) and (o.AsInteger > len) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidLength, objpath);
              end;
              o := length.AsObject.GetO('max');
              if (o <> nil) and (o.AsInteger < len) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidLength, objpath);
              end;
              o := length.AsObject.GetO('minex');
              if (o <> nil) and (o.AsInteger >= len) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidLength, objpath);
              end;
              o := length.AsObject.GetO('maxex');
              if (o <> nil) and (o.AsInteger <= len) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidLength, objpath);
              end;
            end;
          stNull: ;
        else
          Result := false;
          if assigned(callback) then
            callback(sender, veRuleMalformated, '');
        end;
      end;
    
      function CheckRange(obj: ISuperObject; p: ISuperObject; const objpath: SOString): boolean;
      var
        length, o: ISuperObject;
      begin
        result := true;
        length := FindInheritedProperty('range', p);
        case ObjectGetType(length) of
          stObject:
            begin
              o := length.AsObject.GetO('min');
              if (o <> nil) and (o.Compare(obj) = cpGreat) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidRange, objpath);
              end;
              o := length.AsObject.GetO('max');
              if (o <> nil) and (o.Compare(obj) = cpLess) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidRange, objpath);
              end;
              o := length.AsObject.GetO('minex');
              if (o <> nil) and (o.Compare(obj) in [cpGreat, cpEqu]) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidRange, objpath);
              end;
              o := length.AsObject.GetO('maxex');
              if (o <> nil) and (o.Compare(obj) in [cpLess, cpEqu]) then
              begin
                Result := false;
                if assigned(callback) then
                  callback(sender, veInvalidRange, objpath);
              end;
            end;
          stNull: ;
        else
          Result := false;
          if assigned(callback) then
            callback(sender, veRuleMalformated, '');
        end;
      end;
    
    
      function process(o: ISuperObject; p: ISuperObject; objpath: SOString = ''): boolean;
      var
        ite: TSuperAvlIterator;
        ent: TSuperAvlEntry;
        p2, o2, sequence: ISuperObject;
        s: SOString;
        i: integer;
        uniquelist, fieldlist: ISuperObject;
      begin
        Result := true;
        if (o = nil) then
        begin
          if getInheritedBool('required', p) then
          begin
            if assigned(callback) then
              callback(sender, veFieldIsRequired, objpath);
            result := false;
          end;
        end else
          case FindDataType(p) of
            dtStr:
              case ObjectGetType(o) of
                stString:
                  begin
                    Result := Result and CheckLength(Length(o.AsString), p, objpath);
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtBool:
              case ObjectGetType(o) of
                stBoolean:
                  begin
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtInt:
              case ObjectGetType(o) of
                stInt:
                  begin
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtFloat:
              case ObjectGetType(o) of
                stDouble, stCurrency:
                  begin
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtMap:
              case ObjectGetType(o) of
                stObject:
                  begin
                    // all objects have and match a rule ?
                    ite := TSuperAvlIterator.Create(o.AsObject);
                    try
                      ite.First;
                      ent := ite.GetIter;
                      while ent <> nil do
                      begin
                        p2 :=  FindInheritedField(ent.Name, p);
                        if ObjectIsType(p2, stObject) then
                          result := process(ent.Value, p2, objpath + '.' + ent.Name) and result else
                        begin
                          if assigned(callback) then
                            callback(sender, veUnexpectedField, objpath + '.' + ent.Name);
                          result := false; // field have no rule
                        end;
                        ite.Next;
                        ent := ite.GetIter;
                      end;
                    finally
                      ite.Free;
                    end;
    
                    // all expected field exists ?
                    Result :=  InheritedFieldExist(o, p, objpath) and Result;
                  end;
                stNull: {nop};
              else
                result := false;
                if assigned(callback) then
                  callback(sender, veRuleMalformated, objpath);
              end;
            dtSeq:
              case ObjectGetType(o) of
                stArray:
                  begin
                    sequence := FindInheritedProperty('sequence', p);
                    if sequence <> nil then
                    case ObjectGetType(sequence) of
                      stObject:
                        begin
                          for i := 0 to o.AsArray.Length - 1 do
                            result := process(o.AsArray.GetO(i), sequence, objpath + '[' + IntToStr(i) + ']') and result;
                          if getInheritedBool('unique', sequence) then
                          begin
                            // type is unique ?
                            uniquelist := TSuperObject.Create(stObject);
                            try
                              for i := 0 to o.AsArray.Length - 1 do
                              begin
                                s := o.AsArray.GetO(i).AsString;
                                if (s <> '') then
                                begin
                                  if uniquelist.AsObject.Search(s) = nil then
                                    uniquelist[s] := nil else
                                    begin
                                      Result := False;
                                      if Assigned(callback) then
                                        callback(sender, veDuplicateEntry, objpath + '[' + IntToStr(i) + ']');
                                    end;
                                end;
                              end;
                            finally
                              uniquelist := nil;
                            end;
                          end;
    
                          // field is unique ?
                          if (FindDataType(sequence) = dtMap) then
                          begin
                            fieldlist := TSuperObject.Create(stObject);
                            try
                              GetInheritedFieldList(fieldlist, sequence);
                              ite := TSuperAvlIterator.Create(fieldlist.AsObject);
                              try
                                ite.First;
                                ent := ite.GetIter;
                                while ent <> nil do
                                begin
                                  if getInheritedBool('unique', ent.Value) then
                                  begin
                                    uniquelist := TSuperObject.Create(stObject);
                                    try
                                      for i := 0 to o.AsArray.Length - 1 do
                                      begin
                                        o2 := o.AsArray.GetO(i);
                                        if o2 <> nil then
                                        begin
                                          s := o2.AsObject.GetO(ent.Name).AsString;
                                          if (s <> '') then
                                          if uniquelist.AsObject.Search(s) = nil then
                                            uniquelist[s] := nil else
                                            begin
                                              Result := False;
                                              if Assigned(callback) then
                                                callback(sender, veDuplicateEntry, objpath + '[' + IntToStr(i) + '].' + ent.name);
                                            end;
                                        end;
                                      end;
                                    finally
                                      uniquelist := nil;
                                    end;
                                  end;
                                  ite.Next;
                                  ent := ite.GetIter;
                                end;
                              finally
                                ite.Free;
                              end;
                            finally
                              fieldlist := nil;
                            end;
                          end;
    
    
                        end;
                      stNull: {nop};
                    else
                      result := false;
                      if assigned(callback) then
                        callback(sender, veRuleMalformated, objpath);
                    end;
                    Result := Result and CheckLength(o.AsArray.Length, p, objpath);
    
                  end;
              else
                result := false;
                if assigned(callback) then
                  callback(sender, veRuleMalformated, objpath);
              end;
            dtNumber:
              case ObjectGetType(o) of
                stInt,
                stDouble, stCurrency:
                  begin
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtText:
              case ObjectGetType(o) of
                stInt,
                stDouble,
                stCurrency,
                stString:
                  begin
                    result := result and CheckLength(Length(o.AsString), p, objpath);
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtScalar:
              case ObjectGetType(o) of
                stBoolean,
                stDouble,
                stCurrency,
                stInt,
                stString:
                  begin
                    result := result and CheckLength(Length(o.AsString), p, objpath);
                    Result := Result and CheckRange(o, p, objpath);
                  end;
              else
                if assigned(callback) then
                  callback(sender, veInvalidDataType, objpath);
                result := false;
              end;
            dtAny:;
          else
            if assigned(callback) then
              callback(sender, veRuleMalformated, objpath);
            result := false;
          end;
          Result := Result and CheckEnum(o, p, objpath)
    
      end;
    var
      j: integer;
    
    begin
      Result := False;
      datatypes := TSuperObject.Create(stObject);
      names := TSuperObject.Create;
      try
        datatypes.I['str'] := ord(dtStr);
        datatypes.I['int'] := ord(dtInt);
        datatypes.I['float'] := ord(dtFloat);
        datatypes.I['number'] := ord(dtNumber);
        datatypes.I['text'] := ord(dtText);
        datatypes.I['bool'] := ord(dtBool);
        datatypes.I['map'] := ord(dtMap);
        datatypes.I['seq'] := ord(dtSeq);
        datatypes.I['scalar'] := ord(dtScalar);
        datatypes.I['any'] := ord(dtAny);
    
        if ObjectIsType(defs, stArray) then
          for j := 0 to defs.AsArray.Length - 1 do
            if ObjectIsType(defs.AsArray[j], stObject) then
              GetNames(defs.AsArray[j]) else
              begin
                if assigned(callback) then
                  callback(sender, veRuleMalformated, '');
                Exit;
              end;
    
    
        if ObjectIsType(rules, stObject) then
          GetNames(rules) else
          begin
            if assigned(callback) then
              callback(sender, veRuleMalformated, '');
            Exit;
          end;
    
        Result := process(self, rules);
    
      finally
        datatypes := nil;
        names := nil;
      end;
    end;
    
    function TSuperObject._AddRef: Integer; stdcall;
    begin
      Result := InterlockedIncrement(FRefCount);
    end;
    
    function TSuperObject._Release: Integer; stdcall;
    begin
      Result := InterlockedDecrement(FRefCount);
      if Result = 0 then
        Destroy;
    end;
    
    function TSuperObject.Compare(const str: SOString): TSuperCompareResult;
    begin
      Result := Compare(TSuperObject.ParseString(PSOChar(str), False));
    end;
    
    function TSuperObject.Compare(const obj: ISuperObject): TSuperCompareResult;
      function GetIntCompResult(const i: int64): TSuperCompareResult;
      begin
        if i < 0 then result := cpLess else
        if i = 0 then result := cpEqu else
          Result := cpGreat;
      end;
    
      function GetDblCompResult(const d: double): TSuperCompareResult;
      begin
        if d < 0 then result := cpLess else
        if d = 0 then result := cpEqu else
          Result := cpGreat;
      end;
    
    begin
      case DataType of
        stBoolean:
          case ObjectGetType(obj) of
            stBoolean: Result := GetIntCompResult(ord(FO.c_boolean) - ord(obj.AsBoolean));
            stDouble:  Result := GetDblCompResult(ord(FO.c_boolean) - obj.AsDouble);
            stCurrency:Result := GetDblCompResult(ord(FO.c_boolean) - obj.AsCurrency);
            stInt:     Result := GetIntCompResult(ord(FO.c_boolean) - obj.AsInteger);
            stString:  Result := GetIntCompResult(StrComp(PSOChar(AsString), PSOChar(obj.AsString)));
          else
            Result := cpError;
          end;
        stDouble:
          case ObjectGetType(obj) of
            stBoolean: Result := GetDblCompResult(FO.c_double - ord(obj.AsBoolean));
            stDouble:  Result := GetDblCompResult(FO.c_double - obj.AsDouble);
            stCurrency:Result := GetDblCompResult(FO.c_double - obj.AsCurrency);
            stInt:     Result := GetDblCompResult(FO.c_double - obj.AsInteger);
            stString:  Result := GetIntCompResult(StrComp(PSOChar(AsString), PSOChar(obj.AsString)));
          else
            Result := cpError;
          end;
        stCurrency:
          case ObjectGetType(obj) of
            stBoolean: Result := GetDblCompResult(FO.c_currency - ord(obj.AsBoolean));
            stDouble:  Result := GetDblCompResult(FO.c_currency - obj.AsDouble);
            stCurrency:Result := GetDblCompResult(FO.c_currency - obj.AsCurrency);
            stInt:     Result := GetDblCompResult(FO.c_currency - obj.AsInteger);
            stString:  Result := GetIntCompResult(StrComp(PSOChar(AsString), PSOChar(obj.AsString)));
          else
            Result := cpError;
          end;
        stInt:
          case ObjectGetType(obj) of
            stBoolean: Result := GetIntCompResult(FO.c_int - ord(obj.AsBoolean));
            stDouble:  Result := GetDblCompResult(FO.c_int - obj.AsDouble);
            stCurrency:Result := GetDblCompResult(FO.c_int - obj.AsCurrency);
            stInt:     Result := GetIntCompResult(FO.c_int - obj.AsInteger);
            stString:  Result := GetIntCompResult(StrComp(PSOChar(AsString), PSOChar(obj.AsString)));
          else
            Result := cpError;
          end;
        stString:
          case ObjectGetType(obj) of
            stBoolean,
            stDouble,
            stCurrency,
            stInt,
            stString:  Result := GetIntCompResult(StrComp(PSOChar(AsString), PSOChar(obj.AsString)));
          else
            Result := cpError;
          end;
      else
        Result := cpError;
      end;
    end;
    
    {$IFDEF SUPER_METHOD}
    function TSuperObject.AsMethod: TSuperMethod;
    begin
      if FDataType = stMethod then
        Result := FO.c_method else
        Result := nil;
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    constructor TSuperObject.Create(m: TSuperMethod);
    begin
      Create(stMethod);
      FO.c_method := m;
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    function TSuperObject.GetM(const path: SOString): TSuperMethod;
    var
      v: ISuperObject;
    begin
      v := ParseString(PSOChar(path), False, True, Self);
      if (v <> nil) and (ObjectGetType(v) = stMethod) then
        Result := v.AsMethod else
        Result := nil;
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    procedure TSuperObject.PutM(const path: SOString; Value: TSuperMethod);
    begin
      ParseString(PSOChar(path), False, True, Self, [foCreatePath, foPutValue], TSuperObject.Create(Value));
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    function TSuperObject.call(const path: SOString; const param: ISuperObject): ISuperObject;
    begin
      Result := ParseString(PSOChar(path), False, True, Self, [foCallMethod], param);
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    function TSuperObject.call(const path, param: SOString): ISuperObject;
    begin
      Result := ParseString(PSOChar(path), False, True, Self, [foCallMethod], TSuperObject.ParseString(PSOChar(param), False));
    end;
    {$ENDIF}
    
    function TSuperObject.GetProcessing: boolean;
    begin
      Result := FProcessing;
    end;
    
    procedure TSuperObject.SetDataPtr(const Value: Pointer);
    begin
      FDataPtr := Value;
    end;
    
    procedure TSuperObject.SetProcessing(value: boolean);
    begin
      FProcessing := value;
    end;
    
    { TSuperArray }
    
    function TSuperArray.Add(const Data: ISuperObject): Integer;
    begin
      Result := FLength;
      PutO(Result, data);
    end;
    
    function TSuperArray.Delete(index: Integer): ISuperObject;
    begin
      if (Index >= 0) and (Index < FLength) then
      begin
        Result := FArray^[index];
        FArray^[index] := nil;
        Dec(FLength);
        if Index < FLength then
        begin
          Move(FArray^[index + 1], FArray^[index],
            (FLength - index) * SizeOf(Pointer));
          Pointer(FArray^[FLength]) := nil;
        end;
      end;
    end;
    
    procedure TSuperArray.Insert(index: Integer; const value: ISuperObject);
    begin
      if (Index >= 0) then
      if (index < FLength) then
      begin
        if FLength = FSize then
          Expand(index);
        if Index < FLength then
          Move(FArray^[index], FArray^[index + 1],
            (FLength - index) * SizeOf(Pointer));
        Pointer(FArray^[index]) := nil;
        FArray^[index] := value;
        Inc(FLength);
      end else
        PutO(index, value);
    end;
    
    procedure TSuperArray.Clear(all: boolean);
    var
      j: Integer;
    begin
      for j := 0 to FLength - 1 do
        if FArray^[j] <> nil then
        begin
          if all then
            FArray^[j].Clear(all);
          FArray^[j] := nil;
        end;
      FLength := 0;
    end;
    
    procedure TSuperArray.Pack(all: boolean);
    var
      PackedCount, StartIndex, EndIndex, j: Integer;
    begin
      if FLength > 0 then
      begin
        PackedCount := 0;
        StartIndex := 0;
        repeat
          while (StartIndex < FLength) and (FArray^[StartIndex] = nil) do
            Inc(StartIndex);
          if StartIndex < FLength then
            begin
              EndIndex := StartIndex;
              while (EndIndex < FLength) and  (FArray^[EndIndex] <> nil) do
                Inc(EndIndex);
    
              Dec(EndIndex);
    
              if StartIndex > PackedCount then
                Move(FArray^[StartIndex], FArray^[PackedCount], (EndIndex - StartIndex + 1) * SizeOf(Pointer));
    
              Inc(PackedCount, EndIndex - StartIndex + 1);
              StartIndex := EndIndex + 1;
            end;
        until StartIndex >= FLength;
        FillChar(FArray^[PackedCount], (FLength - PackedCount) * sizeof(Pointer), 0);
        FLength := PackedCount;
        if all then
          for j := 0 to FLength - 1 do
            FArray^[j].Pack(all);
      end;
    end;
    
    constructor TSuperArray.Create;
    begin
      inherited Create;
      FSize := SUPER_ARRAY_LIST_DEFAULT_SIZE;
      FLength := 0;
      GetMem(FArray, sizeof(Pointer) * FSize);
      FillChar(FArray^, sizeof(Pointer) * FSize, 0);
    end;
    
    destructor TSuperArray.Destroy;
    begin
      Clear;
      FreeMem(FArray);
      inherited;
    end;
    
    procedure TSuperArray.Expand(max: Integer);
    var
      new_size: Integer;
    begin
      if (max < FSize) then
        Exit;
      if max < (FSize shl 1) then
        new_size := (FSize shl 1) else
        new_size := max + 1;
      ReallocMem(FArray, new_size * sizeof(Pointer));
      FillChar(FArray^[FSize], (new_size - FSize) * sizeof(Pointer), 0);
      FSize := new_size;
    end;
    
    function TSuperArray.GetO(const index: Integer): ISuperObject;
    begin
      if(index >= FLength) then
        Result := nil else
        Result := FArray^[index];
    end;
    
    function TSuperArray.GetB(const index: integer): Boolean;
    var
      obj: ISuperObject;
    begin
      obj := GetO(index);
      if obj <> nil then
        Result := obj.AsBoolean else
        Result := false;
    end;
    
    function TSuperArray.GetD(const index: integer): Double;
    var
      obj: ISuperObject;
    begin
      obj := GetO(index);
      if obj <> nil then
        Result := obj.AsDouble else
        Result := 0.0;
    end;
    
    function TSuperArray.GetI(const index: integer): SuperInt;
    var
      obj: ISuperObject;
    begin
      obj := GetO(index);
      if obj <> nil then
        Result := obj.AsInteger else
        Result := 0;
    end;
    
    function TSuperArray.GetS(const index: integer): SOString;
    var
      obj: ISuperObject;
    begin
      obj := GetO(index);
      if obj <> nil then
        Result := obj.AsString else
        Result := '';
    end;
    
    procedure TSuperArray.PutO(const index: Integer; const Value: ISuperObject);
    begin
      Expand(index);
      FArray^[index] := value;
      if(FLength <= index) then FLength := index + 1;
    end;
    
    function TSuperArray.GetN(const index: integer): ISuperObject;
    begin
      Result := GetO(index);
      if Result = nil then
        Result := TSuperObject.Create(stNull);
    end;
    
    procedure TSuperArray.PutN(const index: integer; const Value: ISuperObject);
    begin
      if Value <> nil then
        PutO(index, Value) else
        PutO(index, TSuperObject.Create(stNull));
    end;
    
    procedure TSuperArray.PutB(const index: integer; Value: Boolean);
    begin
      PutO(index, TSuperObject.Create(Value));
    end;
    
    procedure TSuperArray.PutD(const index: integer; Value: Double);
    begin
      PutO(index, TSuperObject.Create(Value));
    end;
    
    function TSuperArray.GetC(const index: integer): Currency;
    var
      obj: ISuperObject;
    begin
      obj := GetO(index);
      if obj <> nil then
        Result := obj.AsCurrency else
        Result := 0.0;
    end;
    
    procedure TSuperArray.PutC(const index: integer; Value: Currency);
    begin
      PutO(index, TSuperObject.CreateCurrency(Value));
    end;
    
    procedure TSuperArray.PutI(const index: integer; Value: SuperInt);
    begin
      PutO(index, TSuperObject.Create(Value));
    end;
    
    procedure TSuperArray.PutS(const index: integer; const Value: SOString);
    begin
      PutO(index, TSuperObject.Create(Value));
    end;
    
    {$IFDEF SUPER_METHOD}
    function TSuperArray.GetM(const index: integer): TSuperMethod;
    var
      v: ISuperObject;
    begin
      v := GetO(index);
      if (ObjectGetType(v) = stMethod) then
        Result := v.AsMethod else
        Result := nil;
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    procedure TSuperArray.PutM(const index: integer; Value: TSuperMethod);
    begin
      PutO(index, TSuperObject.Create(Value));
    end;
    {$ENDIF}
    
    { TSuperWriterString }
    
    function TSuperWriterString.Append(buf: PSOChar; Size: Integer): Integer;
      function max(a, b: Integer): integer; begin if a > b then  Result := a else Result := b end;
    begin
      Result := size;
      if Size > 0 then
      begin
        if (FSize - FBPos <= size) then
        begin
          FSize := max(FSize * 2, FBPos + size + 8);
          ReallocMem(FBuf, FSize * SizeOf(SOChar));
        end;
        // fast move
        case size of
        1: FBuf[FBPos] := buf^;
        2: PInteger(@FBuf[FBPos])^ := PInteger(buf)^;
        4: PInt64(@FBuf[FBPos])^ := PInt64(buf)^;
        else
          move(buf^, FBuf[FBPos], size * SizeOf(SOChar));
        end;
        inc(FBPos, size);
        FBuf[FBPos] := #0;
      end;
    end;
    
    function TSuperWriterString.Append(buf: PSOChar): Integer;
    begin
      Result := Append(buf, strlen(buf));
    end;
    
    constructor TSuperWriterString.Create;
    begin
      inherited;
      FSize := 32;
      FBPos := 0;
      GetMem(FBuf, FSize * SizeOf(SOChar));
    end;
    
    destructor TSuperWriterString.Destroy;
    begin
      inherited;
      if FBuf <> nil then
        FreeMem(FBuf)
    end;
    
    function TSuperWriterString.GetString: SOString;
    begin
      SetString(Result, FBuf, FBPos);
    end;
    
    procedure TSuperWriterString.Reset;
    begin
      FBuf[0] := #0;
      FBPos := 0;
    end;
    
    procedure TSuperWriterString.TrimRight;
    begin
      while (FBPos > 0) and (FBuf[FBPos-1] < #256) and (AnsiChar(FBuf[FBPos-1]) in [#32, #13, #10]) do
      begin
        dec(FBPos);
        FBuf[FBPos] := #0;
      end;
    end;
    
    { TSuperWriterStream }
    
    function TSuperWriterStream.Append(buf: PSOChar): Integer;
    begin
      Result := Append(buf, StrLen(buf));
    end;
    
    constructor TSuperWriterStream.Create(AStream: TStream);
    begin
      inherited Create;
      FStream := AStream;
    end;
    
    procedure TSuperWriterStream.Reset;
    begin
      FStream.Size := 0;
    end;
    
    { TSuperWriterStream }
    
    function TSuperAnsiWriterStream.Append(buf: PSOChar; Size: Integer): Integer;
    var
      Buffer: array[0..1023] of AnsiChar;
      pBuffer: PAnsiChar;
      i: Integer;
    begin
      if Size = 1 then
        Result := FStream.Write(buf^, Size) else
      begin
        if Size > SizeOf(Buffer) then
          GetMem(pBuffer, Size) else
          pBuffer := @Buffer;
        try
          for i :=  0 to Size - 1 do
            pBuffer[i] := AnsiChar(buf[i]);
          Result := FStream.Write(pBuffer^, Size);
        finally
          if pBuffer <> @Buffer then
            FreeMem(pBuffer);
        end;
      end;
    end;
    
    { TSuperUnicodeWriterStream }
    
    function TSuperUnicodeWriterStream.Append(buf: PSOChar; Size: Integer): Integer;
    begin
      Result := FStream.Write(buf^, Size * 2);
    end;
    
    { TSuperWriterFake }
    
    function TSuperWriterFake.Append(buf: PSOChar; Size: Integer): Integer;
    begin
      inc(FSize, Size);
      Result := FSize;
    end;
    
    function TSuperWriterFake.Append(buf: PSOChar): Integer;
    begin
      inc(FSize, Strlen(buf));
      Result := FSize;
    end;
    
    constructor TSuperWriterFake.Create;
    begin
      inherited Create;
      FSize := 0;
    end;
    
    procedure TSuperWriterFake.Reset;
    begin
      FSize := 0;
    end;
    
    { TSuperWriterSock }
    
    function TSuperWriterSock.Append(buf: PSOChar; Size: Integer): Integer;
    var
      Buffer: array[0..1023] of AnsiChar;
      pBuffer: PAnsiChar;
      i: Integer;
    begin
      if Size = 1 then
    {$IFDEF FPC}
        Result := fpsend(FSocket, buf, size, 0) else
    {$ELSE}
        Result := send(FSocket, buf^, size, 0) else
    {$ENDIF}
      begin
        if Size > SizeOf(Buffer) then
          GetMem(pBuffer, Size) else
          pBuffer := @Buffer;
        try
          for i :=  0 to Size - 1 do
            pBuffer[i] := AnsiChar(buf[i]);
    {$IFDEF FPC}
          Result := fpsend(FSocket, pBuffer, size, 0);
    {$ELSE}
          Result := send(FSocket, pBuffer^, size, 0);
    {$ENDIF}
        finally
          if pBuffer <> @Buffer then
            FreeMem(pBuffer);
        end;
      end;
      inc(FSize, Result);
    end;
    
    function TSuperWriterSock.Append(buf: PSOChar): Integer;
    begin
      Result := Append(buf, StrLen(buf));
    end;
    
    constructor TSuperWriterSock.Create(ASocket: Integer);
    begin
      inherited Create;
      FSocket := ASocket;
      FSize := 0;
    end;
    
    procedure TSuperWriterSock.Reset;
    begin
      FSize := 0;
    end;
    
    { TSuperTokenizer }
    
    constructor TSuperTokenizer.Create;
    begin
      pb := TSuperWriterString.Create;
      line := 1;
      col := 0;
      Reset;
    end;
    
    destructor TSuperTokenizer.Destroy;
    begin
      Reset;
      pb.Free;
      inherited;
    end;
    
    procedure TSuperTokenizer.Reset;
    var
      i: integer;
    begin
      for i := depth downto 0 do
        ResetLevel(i);
      depth := 0;
      err := teSuccess;
    end;
    
    procedure TSuperTokenizer.ResetLevel(adepth: integer);
    begin
      stack[adepth].state := tsEatws;
      stack[adepth].saved_state := tsStart;
      stack[adepth].current := nil;
      stack[adepth].field_name := '';
      stack[adepth].obj := nil;
      stack[adepth].parent := nil;
      stack[adepth].gparent := nil;
    end;
    
    { TSuperAvlTree }
    
    constructor TSuperAvlTree.Create;
    begin
      FRoot := nil;
      FCount := 0;
      // WenTao 用于存储每个节点,以保证顺序
      FNodeNames := nil;
    end;
    
    destructor TSuperAvlTree.Destroy;
    begin
      Clear;
    
      // WenTao 用于存储每个节点,以保证顺序
      if FNodeNames <> nil then
        FreeAndNil(FNodeNames);
    
      inherited;
    end;
    
    function TSuperAvlTree.IsEmpty: boolean;
    begin
      result := FRoot = nil;
    end;
    
    function TSuperAvlTree.balance(bal: TSuperAvlEntry): TSuperAvlEntry;
    var
      deep, old: TSuperAvlEntry;
      bf: integer;
    begin
      if (bal.FBf > 0) then
      begin
        deep := bal.FGt;
        if (deep.FBf < 0) then
        begin
          old := bal;
          bal := deep.FLt;
          old.FGt := bal.FLt;
          deep.FLt := bal.FGt;
          bal.FLt := old;
          bal.FGt := deep;
          bf := bal.FBf;
          if (bf <> 0) then
          begin
            if (bf > 0) then
            begin
              old.FBf := -1;
              deep.FBf := 0;
            end else
            begin
              deep.FBf := 1;
              old.FBf := 0;
            end;
            bal.FBf := 0;
          end else
          begin
            old.FBf := 0;
            deep.FBf := 0;
          end;
        end else
        begin
          bal.FGt := deep.FLt;
          deep.FLt := bal;
          if (deep.FBf = 0) then
          begin
            deep.FBf := -1;
            bal.FBf := 1;
          end else
          begin
            deep.FBf := 0;
            bal.FBf := 0;
          end;
          bal := deep;
        end;
      end else
      begin
        (* "Less than" subtree is deeper. *)
    
        deep := bal.FLt;
        if (deep.FBf > 0) then
        begin
          old := bal;
          bal := deep.FGt;
          old.FLt := bal.FGt;
          deep.FGt := bal.FLt;
          bal.FGt := old;
          bal.FLt := deep;
    
          bf := bal.FBf;
          if (bf <> 0) then
          begin
            if (bf < 0) then
            begin
              old.FBf := 1;
              deep.FBf := 0;
            end else
            begin
              deep.FBf := -1;
              old.FBf := 0;
            end;
            bal.FBf := 0;
          end else
          begin
            old.FBf := 0;
            deep.FBf := 0;
          end;
        end else
        begin
          bal.FLt := deep.FGt;
          deep.FGt := bal;
          if (deep.FBf = 0) then
          begin
            deep.FBf := 1;
            bal.FBf := -1;
          end else
          begin
            deep.FBf := 0;
            bal.FBf := 0;
          end;
          bal := deep;
        end;
      end;
      Result := bal;
    end;
    
    function TSuperAvlTree.Insert(h: TSuperAvlEntry): TSuperAvlEntry;
    var
      unbal, parentunbal, hh, parent: TSuperAvlEntry;
      depth, unbaldepth: longint;
      cmp: integer;
      unbalbf: integer;
      branch: TSuperAvlBitArray;
      p: Pointer;
    begin
      inc(FCount);
      h.FLt := nil;
      h.FGt := nil;
      h.FBf := 0;
      branch := [];
    
      if (FRoot = nil) then begin
        FRoot := h;
        // WenTao 执行到这里,可以确认这个节点是新增节点。
        AddNodeName(h.FName);
    
      end else begin
        unbal := nil;
        parentunbal := nil;
        depth := 0;
        unbaldepth := 0;
        hh := FRoot;
        parent := nil;
        repeat
          if (hh.FBf <> 0) then
          begin
            unbal := hh;
            parentunbal := parent;
            unbaldepth := depth;
          end;
          if hh.FHash <> h.FHash then
          begin
            if hh.FHash < h.FHash then cmp := -1 else
            if hh.FHash > h.FHash then cmp := 1 else
              cmp := 0;
          end else
            cmp := CompareNodeNode(h, hh);
          if (cmp = 0) then
          begin
            Result := hh;
            //exchange data
            p := hh.Ptr;
            hh.FPtr := h.Ptr;
            h.FPtr := p;
            doDeleteEntry(h, false);
            dec(FCount);
            exit;
          end;
          parent := hh;
          if (cmp > 0) then
          begin
            hh := hh.FGt;
            include(branch, depth);
          end else
          begin
            hh := hh.FLt;
            exclude(branch, depth);
          end;
          inc(depth);
        until (hh = nil);
    
        // WenTao 执行到这里,可以确认这个节点是新增节点。
        AddNodeName(h.FName);
    
        if (cmp < 0) then
          parent.FLt := h else
          parent.FGt := h;
    
        depth := unbaldepth;
    
        if (unbal = nil) then
          hh := FRoot
        else
        begin
          if depth in branch then
            cmp := 1 else
            cmp := -1;
          inc(depth);
          unbalbf := unbal.FBf;
          if (cmp < 0) then
            dec(unbalbf) else
            inc(unbalbf);
          if cmp < 0 then
            hh := unbal.FLt else
            hh := unbal.FGt;
          if ((unbalbf <> -2) and (unbalbf <> 2)) then
          begin
            unbal.FBf := unbalbf;
            unbal := nil;
          end;
        end;
    
        if (hh <> nil) then
          while (h <> hh) do
          begin
            if depth in branch then
              cmp := 1 else
              cmp := -1;
            inc(depth);
            if (cmp < 0) then
            begin
              hh.FBf := -1;
              hh := hh.FLt;
            end else (* cmp > 0 *)
            begin
              hh.FBf := 1;
              hh := hh.FGt;
            end;
          end;
    
        if (unbal <> nil) then
        begin
          unbal := balance(unbal);
          if (parentunbal = nil) then
            FRoot := unbal
          else
          begin
            depth := unbaldepth - 1;
            if depth in branch then
              cmp := 1 else
              cmp := -1;
            if (cmp < 0) then
              parentunbal.FLt := unbal else
              parentunbal.FGt := unbal;
          end;
        end;
      end;
      result := h;
    end;
    
    function TSuperAvlTree.Search(const k: SOString; st: TSuperAvlSearchTypes): TSuperAvlEntry;
    var
      cmp, target_cmp: integer;
      match_h, h: TSuperAvlEntry;
      ha: Cardinal;
    begin
      ha := TSuperAvlEntry.Hash(k);
    
      match_h := nil;
      h := FRoot;
    
      if (stLess in st) then
        target_cmp := 1 else
        if (stGreater in st) then
          target_cmp := -1 else
          target_cmp := 0;
    
      while (h <> nil) do
      begin
        if h.FHash < ha then cmp := -1 else
        if h.FHash > ha then cmp := 1 else
          cmp := 0;
    
        if cmp = 0 then
          cmp := CompareKeyNode(PSOChar(k), h);
        if (cmp = 0) then
        begin
          if (stEqual in st) then
          begin
            match_h := h;
            break;
          end;
          cmp := -target_cmp;
        end
        else
        if (target_cmp <> 0) then
          if ((cmp xor target_cmp) and SUPER_AVL_MASK_HIGH_BIT) = 0 then
            match_h := h;
        if cmp < 0 then
          h := h.FLt else
          h := h.FGt;
      end;
      result := match_h;
    end;
    
    function TSuperAvlTree.Delete(const k: SOString): ISuperObject;
    var
      depth, rm_depth: longint;
      branch: TSuperAvlBitArray;
      h, parent, child, path, rm, parent_rm: TSuperAvlEntry;
      cmp, cmp_shortened_sub_with_path, reduced_depth, bf: integer;
      ha: Cardinal;
    begin
      ha := TSuperAvlEntry.Hash(k);
      cmp_shortened_sub_with_path := 0;
      branch := [];
    
      depth := 0;
      h := FRoot;
      parent := nil;
      while true do
      begin
        if (h = nil) then
          exit;
        if h.FHash < ha then cmp := -1 else
        if h.FHash > ha then cmp := 1 else
          cmp := 0;
    
        if cmp = 0 then
          cmp := CompareKeyNode(k, h);
        if (cmp = 0) then
          break;
        parent := h;
        if (cmp > 0) then
        begin
          h := h.FGt;
          include(branch, depth)
        end else
        begin
          h := h.FLt;
          exclude(branch, depth)
        end;
        inc(depth);
        cmp_shortened_sub_with_path := cmp;
      end;
      rm := h;
      parent_rm := parent;
      rm_depth := depth;
    
      if (h.FBf < 0) then
      begin
        child := h.FLt;
        exclude(branch, depth);
        cmp := -1;
      end else
      begin
        child := h.FGt;
        include(branch, depth);
        cmp := 1;
      end;
      inc(depth);
    
      if (child <> nil) then
      begin
        cmp := -cmp;
        repeat
          parent := h;
          h := child;
          if (cmp < 0) then
          begin
            child := h.FLt;
            exclude(branch, depth);
          end else
          begin
            child := h.FGt;
            include(branch, depth);
          end;
          inc(depth);
        until (child = nil);
    
        if (parent = rm) then
          cmp_shortened_sub_with_path := -cmp else
          cmp_shortened_sub_with_path := cmp;
    
        if cmp > 0 then
          child := h.FLt else
          child := h.FGt;
      end;
    
      if (parent = nil) then
        FRoot := child else
        if (cmp_shortened_sub_with_path < 0) then
          parent.FLt := child else
          parent.FGt := child;
    
      if parent = rm then
        path := h else
        path := parent;
    
      if (h <> rm) then
      begin
        h.FLt := rm.FLt;
        h.FGt := rm.FGt;
        h.FBf := rm.FBf;
        if (parent_rm = nil) then
          FRoot := h
        else
        begin
          depth := rm_depth - 1;
          if (depth in branch) then
            parent_rm.FGt := h else
            parent_rm.FLt := h;
        end;
      end;
    
      if (path <> nil) then
      begin
        h := FRoot;
        parent := nil;
        depth := 0;
        while (h <> path) do
        begin
          if (depth in branch) then
          begin
            child := h.FGt;
            h.FGt := parent;
          end else
          begin
            child := h.FLt;
            h.FLt := parent;
          end;
          inc(depth);
          parent := h;
          h := child;
        end;
    
        reduced_depth := 1;
        cmp := cmp_shortened_sub_with_path;
        while true do
        begin
          if (reduced_depth <> 0) then
          begin
            bf := h.FBf;
            if (cmp < 0) then
              inc(bf) else
              dec(bf);
            if ((bf = -2) or (bf = 2)) then
            begin
              h := balance(h);
              bf := h.FBf;
            end else
              h.FBf := bf;
            reduced_depth := integer(bf = 0);
          end;
          if (parent = nil) then
            break;
          child := h;
          h := parent;
          dec(depth);
          if depth in branch then
            cmp := 1 else
            cmp := -1;
          if (cmp < 0) then
          begin
            parent := h.FLt;
            h.FLt := child;
          end else
          begin
            parent := h.FGt;
            h.FGt := child;
          end;
        end;
        FRoot := h;
      end;
      if rm <> nil then
      begin
        Result := rm.GetValue;
        // WenTao 去除节点。
        RemoveNode(rm.FName);
        doDeleteEntry(rm, false);
        dec(FCount);
      end;
    end;
    
    procedure TSuperAvlTree.Pack(all: boolean);
    var
      node1, node2: TSuperAvlEntry;
      list: TList;
      i: Integer;
    begin
      node1 := FRoot;
      list := TList.Create;
      while node1 <> nil do
      begin
        if (node1.FLt = nil) then
        begin
          node2 := node1.FGt;
          if (node1.FPtr = nil) then
            list.Add(node1) else
            if all then
              node1.Value.Pack(all);
        end
        else
        begin
          node2 := node1.FLt;
          node1.FLt := node2.FGt;
          node2.FGt := node1;
        end;
        node1 := node2;
      end;
      for i := 0 to list.Count - 1 do
        Delete(TSuperAvlEntry(list[i]).FName);
      list.Free;
    end;
    
    procedure TSuperAvlTree.Clear(all: boolean);
    var
      node1, node2: TSuperAvlEntry;
    begin
      // WenTao 清除所有节点。
      if FNodeNames <> nil then
        FNodeNames.Clear;  
    
      node1 := FRoot;
      while node1 <> nil do
      begin
        if (node1.FLt = nil) then
        begin
          node2 := node1.FGt;
          doDeleteEntry(node1, all);
        end
        else
        begin
          node2 := node1.FLt;
          node1.FLt := node2.FGt;
          node2.FGt := node1;
        end;
        node1 := node2;
      end;
      FRoot := nil;
      FCount := 0;
    end;
    
    function TSuperAvlTree.CompareKeyNode(const k: SOString; h: TSuperAvlEntry): integer;
    begin
      Result := StrComp(PSOChar(k), PSOChar(h.FName));
    end;
    
    function TSuperAvlTree.CompareNodeNode(node1, node2: TSuperAvlEntry): integer;
    begin
      Result := StrComp(PSOChar(node1.FName), PSOChar(node2.FName));
    end;
    
    { TSuperAvlIterator }
    
    (* Initialize depth to invalid value, to indicate iterator is
    ** invalid.   (Depth is zero-base.)  It's not necessary to initialize
    ** iterators prior to passing them to the "start" function.
    *)
    
    constructor TSuperAvlIterator.Create(tree: TSuperAvlTree);
    begin
      FTree := tree;
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
      FCurNameIndex := -1;
    end;
    
    procedure TSuperAvlIterator.Search(const k: SOString);
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      if FTree.FNodeNames = nil then
        FCurNameIndex := -1
      else
        FCurNameIndex := FTree.FNodeNames.IndexOf(k);
    (* WenTao 旧的代码
    var
      h: TSuperAvlEntry;
      d: longint;
      cmp, target_cmp: integer;
      ha: Cardinal;
    begin
      ha := TSuperAvlEntry.Hash(k);
      h := FTree.FRoot;
      d := 0;
      FDepth := not 0;
      if (h = nil) then
        exit;
    
      if (stLess in st) then
        target_cmp := 1 else
          if (stGreater in st) then
            target_cmp := -1 else
              target_cmp := 0;
    
      while true do
      begin
        if h.FHash < ha then cmp := -1 else
        if h.FHash > ha then cmp := 1 else
          cmp := 0;
    
        if cmp = 0 then
          cmp := FTree.CompareKeyNode(k, h);
        if (cmp = 0) then
        begin
          if (stEqual in st) then
          begin
            FDepth := d;
            break;
          end;
          cmp := -target_cmp;
        end
        else
        if (target_cmp <> 0) then
          if ((cmp xor target_cmp) and SUPER_AVL_MASK_HIGH_BIT) = 0 then
            FDepth := d;
        if cmp < 0 then
          h := h.FLt else
          h := h.FGt;
        if (h = nil) then
          break;
        if (cmp > 0) then
          include(FBranch, d) else
          exclude(FBranch, d);
        FPath[d] := h;
        inc(d);
      end;
    *)
    end;
    
    procedure TSuperAvlIterator.First;
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      FCurNameIndex := 0;
    (* WenTao 旧的代码
    var
      h: TSuperAvlEntry;
    begin
      h := FTree.FRoot;
      FDepth := not 0;
      FBranch := [];
      while (h <> nil) do
      begin
        if (FDepth <> not 0) then
          FPath[FDepth] := h;
        inc(FDepth);
        h := h.FLt;
      end;
    *)
    end;
    
    procedure TSuperAvlIterator.Last;
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      if FTree.FNodeNames = nil then
        FCurNameIndex := -1
      else
        FCurNameIndex := FTree.FNodeNames.Count - 1;
    (* WenTao 旧的代码
    var
      h: TSuperAvlEntry;
    begin
      h := FTree.FRoot;
      FDepth := not 0;
      FBranch := [0..SUPER_AVL_MAX_DEPTH - 1];
      while (h <> nil) do
      begin
        if (FDepth <> not 0) then
          FPath[FDepth] := h;
        inc(FDepth);
        h := h.FGt;
      end;
    *)
    end;
    
    function TSuperAvlIterator.MoveNext: boolean;
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      if FTree.FNodeNames = nil then
        FCurNameIndex := -1
      else
        Inc(FCurNameIndex);
    
      Result := GetIter <> nil;
    
    (* WenTao 旧的代码
      if FDepth = not 0 then
        First else
        Next;
      Result := GetIter <> nil;
    *)
    end;
    
    function TSuperAvlIterator.GetIter: TSuperAvlEntry;
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      if FTree.FNodeNames = nil then
        Result := nil
      else if FCurNameIndex < 0 then
        Result := nil
      else if FCurNameIndex > FTree.FNodeNames.Count - 1 then
        Result := nil
      else
        Result := FTree.Search(FTree.FNodeNames[FCurNameIndex]);
    
    (* WenTao 旧的代码
      if (FDepth = not 0) then
      begin
        result := nil;
        exit;
      end;
      if FDepth = 0 then
        Result := FTree.FRoot else
        Result := FPath[FDepth - 1];
    *)
    end;
    
    procedure TSuperAvlIterator.Next;
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      if FTree.FNodeNames = nil then
        FCurNameIndex := -1
      else
        Inc(FCurNameIndex);
    
    (* WenTao 旧的代码
    var
      h: TSuperAvlEntry;
    begin
      if (FDepth <> not 0) then
      begin
        if FDepth = 0 then
          h := FTree.FRoot.FGt else
          h := FPath[FDepth - 1].FGt;
    
        if (h = nil) then
          repeat
            if (FDepth = 0) then
            begin
              FDepth := not 0;
              break;
            end;
            dec(FDepth);
          until (not (FDepth in FBranch))
        else
        begin
          include(FBranch, FDepth);
          FPath[FDepth] := h;
          inc(FDepth);
          while true do
          begin
            h := h.FLt;
            if (h = nil) then
              break;
            exclude(FBranch, FDepth);
            FPath[FDepth] := h;
            inc(FDepth);
          end;
        end;
      end;
    *)
    end;
    
    procedure TSuperAvlIterator.Prior;
    begin
      // WenTao 整个遍历器全部重写,以前是用二叉树的方式,现在改为一个索引即可。
    
      if FTree.FNodeNames = nil then
        FCurNameIndex := -1
      else
        Dec(FCurNameIndex);
    
    (* WenTao 旧的代码
    var
      h: TSuperAvlEntry;
    begin
      if (FDepth <> not 0) then
      begin
        if FDepth = 0 then
          h := FTree.FRoot.FLt else
          h := FPath[FDepth - 1].FLt;
        if (h = nil) then
          repeat
            if (FDepth = 0) then
            begin
              FDepth := not 0;
              break;
            end;
            dec(FDepth);
          until (FDepth in FBranch)
        else
        begin
          exclude(FBranch, FDepth);
          FPath[FDepth] := h;
          inc(FDepth);
          while true do
          begin
            h := h.FGt;
            if (h = nil) then
              break;
            include(FBranch, FDepth);
            FPath[FDepth] := h;
            inc(FDepth);
          end;
        end;
      end;
    *)
    end;
    
    procedure TSuperAvlTree.doDeleteEntry(Entry: TSuperAvlEntry; all: boolean);
    begin
      Entry.Free;
    end;
    
    function TSuperAvlTree.GetEnumerator: TSuperAvlIterator;
    begin
      Result := TSuperAvlIterator.Create(Self);
    end;
    
    // WenTao 增加了新的函数,用于管理节点。
    procedure TSuperAvlTree.AddNodeName(nodeName: SOString);
    begin
      if FNodeNames = nil then
        FNodeNames := TStringList.Create;
    
      FNodeNames.Add(nodeName);
    end;
    
    procedure TSuperAvlTree.RemoveNode(nodeName: SOString);
    var P: Integer;
    begin
      if FNodeNames = nil then
        Exit;
      P := FNodeNames.IndexOf(nodeName);
      if P <> -1 then
        FNodeNames.Delete(P);
    end;
    
    { TSuperAvlEntry }
    
    constructor TSuperAvlEntry.Create(const AName: SOString; Obj: Pointer);
    begin
      FName := AName;
      FPtr := Obj;
      FHash := Hash(FName);
    end;
    
    function TSuperAvlEntry.GetValue: ISuperObject;
    begin
      Result := ISuperObject(FPtr)
    end;
    
    class function TSuperAvlEntry.Hash(const k: SOString): Cardinal;
    var
      h: cardinal;
      i: Integer;
    begin
      h := 0;
      for i := 1 to Length(k) do
        h := h*129 + ord(k[i]) + $9e370001;
      Result := h;
    end;
    
    procedure TSuperAvlEntry.SetValue(const val: ISuperObject);
    begin
      ISuperObject(FPtr) := val;
    end;
    
    { TSuperTableString }
    
    function TSuperTableString.GetValues: ISuperObject;
    var
      ite: TSuperAvlIterator;
      obj: TSuperAvlEntry;
    begin
      Result := TSuperObject.Create(stArray);
      ite := TSuperAvlIterator.Create(Self);
      try
        ite.First;
        obj := ite.GetIter;
        while obj <> nil do
        begin
          Result.AsArray.Add(obj.Value);
          ite.Next;
          obj := ite.GetIter;
        end;
      finally
        ite.Free;
      end;
    end;
    
    function TSuperTableString.GetNames: ISuperObject;
    var
      ite: TSuperAvlIterator;
      obj: TSuperAvlEntry;
    begin
      Result := TSuperObject.Create(stArray);
      ite := TSuperAvlIterator.Create(Self);
      try
        ite.First;
        obj := ite.GetIter;
        while obj <> nil do
        begin
          Result.AsArray.Add(TSuperObject.Create(obj.FName));
          ite.Next;
          obj := ite.GetIter;
        end;
      finally
        ite.Free;
      end;
    end;
    
    procedure TSuperTableString.doDeleteEntry(Entry: TSuperAvlEntry; all: boolean);
    begin
      if Entry.Ptr <> nil then
      begin
        if all then Entry.Value.Clear(true);
        Entry.Value := nil;
      end;
      inherited;
    end;
    
    function TSuperTableString.Find(const k: SOString; var value: ISuperObject): Boolean;
    var
      e: TSuperAvlEntry;
    begin
      e := Search(k);
      if e <> nil then
      begin
        value := e.Value;
        Result := True;
      end else
        Result := False;
    end;
    
    function TSuperTableString.GetO(const k: SOString): ISuperObject;
    var
      e: TSuperAvlEntry;
    begin
      e := Search(k);
      if e <> nil then
        Result := e.Value else
        Result := nil
    end;
    
    procedure TSuperTableString.PutO(const k: SOString; const value: ISuperObject);
    var
      entry: TSuperAvlEntry;
    begin
      entry := Insert(TSuperAvlEntry.Create(k, Pointer(value)));
      if entry.FPtr <> nil then
        ISuperObject(entry.FPtr)._AddRef;
    end;
    
    procedure TSuperTableString.PutS(const k: SOString; const value: SOString);
    begin
      PutO(k, TSuperObject.Create(Value));
    end;
    
    function TSuperTableString.GetS(const k: SOString): SOString;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj.AsString else
       Result := '';
    end;
    
    procedure TSuperTableString.PutI(const k: SOString; value: SuperInt);
    begin
      PutO(k, TSuperObject.Create(Value));
    end;
    
    function TSuperTableString.GetI(const k: SOString): SuperInt;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj.AsInteger else
       Result := 0;
    end;
    
    procedure TSuperTableString.PutD(const k: SOString; value: Double);
    begin
      PutO(k, TSuperObject.Create(Value));
    end;
    
    procedure TSuperTableString.PutC(const k: SOString; value: Currency);
    begin
      PutO(k, TSuperObject.CreateCurrency(Value));
    end;
    
    function TSuperTableString.GetC(const k: SOString): Currency;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj.AsCurrency else
       Result := 0.0;
    end;
    
    function TSuperTableString.GetD(const k: SOString): Double;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj.AsDouble else
       Result := 0.0;
    end;
    
    procedure TSuperTableString.PutB(const k: SOString; value: Boolean);
    begin
      PutO(k, TSuperObject.Create(Value));
    end;
    
    function TSuperTableString.GetB(const k: SOString): Boolean;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj.AsBoolean else
       Result := False;
    end;
    
    {$IFDEF SUPER_METHOD}
    procedure TSuperTableString.PutM(const k: SOString; value: TSuperMethod);
    begin
      PutO(k, TSuperObject.Create(Value));
    end;
    {$ENDIF}
    
    {$IFDEF SUPER_METHOD}
    function TSuperTableString.GetM(const k: SOString): TSuperMethod;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj.AsMethod else
       Result := nil;
    end;
    {$ENDIF}
    
    procedure TSuperTableString.PutN(const k: SOString; const value: ISuperObject);
    begin
      if value <> nil then
        PutO(k, TSuperObject.Create(stNull)) else
        PutO(k, value);
    end;
    
    function TSuperTableString.GetN(const k: SOString): ISuperObject;
    var
      obj: ISuperObject;
    begin
     obj := GetO(k);
     if obj <> nil then
       Result := obj else
       Result := TSuperObject.Create(stNull);
    end;
    
    
    {$IFDEF HAVE_RTTI}
    
    { TSuperAttribute }
    
    constructor TSuperAttribute.Create(const AName: string);
    begin
      FName := AName;
    end;
    
    { TSuperRttiContext }
    
    constructor TSuperRttiContext.Create;
    begin
      Context := TRttiContext.Create;
      SerialFromJson := TDictionary<PTypeInfo, TSerialFromJson>.Create;
      SerialToJson := TDictionary<PTypeInfo, TSerialToJson>.Create;
    
      SerialFromJson.Add(TypeInfo(Boolean), serialfromboolean);
      SerialFromJson.Add(TypeInfo(TDateTime), serialfromdatetime);
      SerialFromJson.Add(TypeInfo(TGUID), serialfromguid);
      SerialToJson.Add(TypeInfo(Boolean), serialtoboolean);
      SerialToJson.Add(TypeInfo(TDateTime), serialtodatetime);
      SerialToJson.Add(TypeInfo(TGUID), serialtoguid);
    end;
    
    destructor TSuperRttiContext.Destroy;
    begin
      SerialFromJson.Free;
      SerialToJson.Free;
      Context.Free;
    end;
    
    class function TSuperRttiContext.GetFieldName(r: TRttiField): string;
    var
      o: TCustomAttribute;
    begin
      for o in r.GetAttributes do
        if o is SOName then
          Exit(SOName(o).Name);
      Result := r.Name;
    end;
    
    class function TSuperRttiContext.GetFieldDefault(r: TRttiField; const obj: ISuperObject): ISuperObject;
    var
      o: TCustomAttribute;
    begin
      if not ObjectIsType(obj, stNull) then Exit(obj);
      for o in r.GetAttributes do
        if o is SODefault then
          Exit(SO(SODefault(o).Name));
      Result := obj;
    end;
    
    function TSuperRttiContext.AsType<T>(const obj: ISuperObject): T;
    var
      ret: TValue;
    begin
      if FromJson(TypeInfo(T), obj, ret) then
        Result := ret.AsType<T> else
        raise exception.Create('Marshalling error');
    end;
    
    function TSuperRttiContext.AsJson<T>(const obj: T; const index: ISuperObject = nil): ISuperObject;
    var
      v: TValue;
    begin
      TValue.Make(@obj, TypeInfo(T), v);
      if index <> nil then
        Result := ToJson(v, index) else
        Result := ToJson(v, so);
    end;
    
    function TSuperRttiContext.FromJson(TypeInfo: PTypeInfo; const obj: ISuperObject;
      var Value: TValue): Boolean;
    
      procedure FromChar;
      begin
        if ObjectIsType(obj, stString) and (Length(obj.AsString) = 1) then
          begin
            Value := string(AnsiString(obj.AsString)[1]);
            Result := True;
          end else
            Result := False;
      end;
    
      procedure FromWideChar;
      begin
        if ObjectIsType(obj, stString) and (Length(obj.AsString) = 1) then
        begin
          Value := obj.AsString[1];
          Result := True;
        end else
          Result := False;
      end;
    
      procedure FromInt64;
      var
        i: Int64;
      begin
        case ObjectGetType(obj) of
        stInt:
          begin
            TValue.Make(nil, TypeInfo, Value);
            TValueData(Value).FAsSInt64 := obj.AsInteger;
            Result := True;
          end;
        stString:
          begin
            if TryStrToInt64(obj.AsString, i) then
            begin
              TValue.Make(nil, TypeInfo, Value);
              TValueData(Value).FAsSInt64 := i;
              Result := True;
            end else
              Result := False;
          end;
        else
          Result := False;
        end;
      end;
    
      procedure FromInt(const obj: ISuperObject);
      var
        TypeData: PTypeData;
        i: Integer;
        o: ISuperObject;
      begin
        case ObjectGetType(obj) of
        stInt, stBoolean:
          begin
            i := obj.AsInteger;
            TypeData := GetTypeData(TypeInfo);
            if TypeData.MaxValue > TypeData.MinValue then
              Result := (i >= TypeData.MinValue) and (i <= TypeData.MaxValue) else
              Result := (i >= TypeData.MinValue) and (i <= Int64(PCardinal(@TypeData.MaxValue)^));
            if Result then
              TValue.Make(@i, TypeInfo, Value);
          end;
        stString:
          begin
            o := SO(obj.AsString);
            if not ObjectIsType(o, stString) then
              FromInt(o) else
              Result := False;
          end;
        else
          Result := False;
        end;
      end;
    
      procedure fromSet;
      var
        i: Integer;
      begin
        case ObjectGetType(obj) of
        stInt:
          begin
            TValue.Make(nil, TypeInfo, Value);
            TValueData(Value).FAsSLong := obj.AsInteger;
            Result := True;
          end;
        stString:
          begin
            if TryStrToInt(obj.AsString, i) then
            begin
              TValue.Make(nil, TypeInfo, Value);
              TValueData(Value).FAsSLong := i;
              Result := True;
            end else
              Result := False;
          end;
        else
          Result := False;
        end;
      end;
    
      procedure FromFloat(const obj: ISuperObject);
      var
        o: ISuperObject;
      begin
        case ObjectGetType(obj) of
        stInt, stDouble, stCurrency:
          begin
            TValue.Make(nil, TypeInfo, Value);
            case GetTypeData(TypeInfo).FloatType of
              ftSingle: TValueData(Value).FAsSingle := obj.AsDouble;
              ftDouble: TValueData(Value).FAsDouble := obj.AsDouble;
              ftExtended: TValueData(Value).FAsExtended := obj.AsDouble;
              ftComp: TValueData(Value).FAsSInt64 := obj.AsInteger;
              ftCurr: TValueData(Value).FAsCurr := obj.AsCurrency;
            end;
            Result := True;
          end;
        stString:
          begin
            o := SO(obj.AsString);
            if not ObjectIsType(o, stString) then
              FromFloat(o) else
              Result := False;
          end
        else
           Result := False;
        end;
      end;
    
      procedure FromString;
      begin
        case ObjectGetType(obj) of
        stObject, stArray:
          Result := False;
        stnull:
          begin
            Value := '';
            Result := True;
          end;
        else
          Value := obj.AsString;
          Result := True;
        end;
      end;
    
      procedure FromClass;
      var
        f: TRttiField;
        v: TValue;
      begin
        case ObjectGetType(obj) of
          stObject:
            begin
              Result := True;
              if Value.Kind <> tkClass then
                Value := GetTypeData(TypeInfo).ClassType.Create;
              for f in Context.GetType(Value.AsObject.ClassType).GetFields do
                if f.FieldType <> nil then
                begin
                  v := TValue.Empty;
                  Result := FromJson(f.FieldType.Handle, GetFieldDefault(f, obj.AsObject[GetFieldName(f)]), v);
                  if Result then
                    f.SetValue(Value.AsObject, v) else
                    Exit;
                end;
            end;
          stNull:
            begin
              Value := nil;
              Result := True;
            end
        else
          // error
          Value := nil;
          Result := False;
        end;
      end;
    
      procedure FromRecord;
      var
        f: TRttiField;
        p: Pointer;
        v: TValue;
      begin
        Result := True;
        TValue.Make(nil, TypeInfo, Value);
        for f in Context.GetType(TypeInfo).GetFields do
        begin
          if ObjectIsType(obj, stObject) and (f.FieldType <> nil) then
          begin
    {$IFDEF VER210}
            p := IValueData(TValueData(Value).FHeapData).GetReferenceToRawData;
    {$ELSE}
            p := TValueData(Value).FValueData.GetReferenceToRawData;
    {$ENDIF}
            Result := FromJson(f.FieldType.Handle, GetFieldDefault(f, obj.AsObject[GetFieldName(f)]), v);
            if Result then
              f.SetValue(p, v) else
              begin
                Writeln(f.Name);
                Exit;
              end;
          end else
          begin
            Result := False;
            Exit;
          end;
        end;
      end;
    
      procedure FromDynArray;
      var
        i: Integer;
        p: Pointer;
        pb: PByte;
        val: TValue;
        typ: PTypeData;
        el: PTypeInfo;
      begin
        case ObjectGetType(obj) of
        stArray:
          begin
            i := obj.AsArray.Length;
            p := nil;
            DynArraySetLength(p, TypeInfo, 1, @i);
            pb := p;
            typ := GetTypeData(TypeInfo);
            if typ.elType <> nil then
              el := typ.elType^ else
              el := typ.elType2^;
    
            Result := True;
            for i := 0 to i - 1 do
            begin
              Result := FromJson(el, obj.AsArray[i], val);
              if not Result then
                Break;
              val.ExtractRawData(pb);
              val := TValue.Empty;
              Inc(pb, typ.elSize);
            end;
            if Result then
              TValue.MakeWithoutCopy(@p, TypeInfo, Value) else
              DynArrayClear(p, TypeInfo);
          end;
        stNull:
          begin
            TValue.MakeWithoutCopy(nil, TypeInfo, Value);
            Result := True;
          end;
        else
          i := 1;
          p := nil;
          DynArraySetLength(p, TypeInfo, 1, @i);
          pb := p;
          typ := GetTypeData(TypeInfo);
          if typ.elType <> nil then
            el := typ.elType^ else
            el := typ.elType2^;
    
          Result := FromJson(el, obj, val);
          val.ExtractRawData(pb);
          val := TValue.Empty;
    
          if Result then
            TValue.MakeWithoutCopy(@p, TypeInfo, Value) else
            DynArrayClear(p, TypeInfo);
        end;
      end;
    
      procedure FromArray;
      var
        ArrayData: PArrayTypeData;
        idx: Integer;
        function ProcessDim(dim: Byte; const o: ISuperobject): Boolean;
        var
          i: Integer;
          v: TValue;
          a: PTypeData;
        begin
          if ObjectIsType(o, stArray) and (ArrayData.Dims[dim-1] <> nil) then
          begin
            a := @GetTypeData(ArrayData.Dims[dim-1]^).ArrayData;
            if (a.MaxValue - a.MinValue + 1) <> o.AsArray.Length then
            begin
              Result := False;
              Exit;
            end;
            Result := True;
            if dim = ArrayData.DimCount then
              for i := a.MinValue to a.MaxValue do
              begin
                Result := FromJson(ArrayData.ElType^, o.AsArray[i], v);
                if not Result then
                  Exit;
                Value.SetArrayElement(idx, v);
                inc(idx);
              end
            else
              for i := a.MinValue to a.MaxValue do
              begin
                Result := ProcessDim(dim + 1, o.AsArray[i]);
                if not Result then
                  Exit;
              end;
          end else
            Result := False;
        end;
      var
        i: Integer;
        v: TValue;
      begin
        TValue.Make(nil, TypeInfo, Value);
        ArrayData := @GetTypeData(TypeInfo).ArrayData;
        idx := 0;
        if ArrayData.DimCount = 1 then
        begin
          if ObjectIsType(obj, stArray) and (obj.AsArray.Length = ArrayData.ElCount) then
          begin
            Result := True;
            for i := 0 to ArrayData.ElCount - 1 do
            begin
              Result := FromJson(ArrayData.ElType^, obj.AsArray[i], v);
              if not Result then
                Exit;
              Value.SetArrayElement(idx, v);
              v := TValue.Empty;
              inc(idx);
            end;
          end else
            Result := False;
        end else
          Result := ProcessDim(1, obj);
      end;
    
      procedure FromClassRef;
      var
        r: TRttiType;
      begin
        if ObjectIsType(obj, stString) then
        begin
          r := Context.FindType(obj.AsString);
          if r <> nil then
          begin
            Value := TRttiInstanceType(r).MetaclassType;
            Result := True;
          end else
            Result := False;
        end else
          Result := False;
      end;
    
      procedure FromUnknown;
      begin
        case ObjectGetType(obj) of
          stBoolean:
            begin
              Value := obj.AsBoolean;
              Result := True;
            end;
          stDouble:
            begin
              Value := obj.AsDouble;
              Result := True;
            end;
          stCurrency:
            begin
              Value := obj.AsCurrency;
              Result := True;
            end;
          stInt:
            begin
              Value := obj.AsInteger;
              Result := True;
            end;
          stString:
            begin
              Value := obj.AsString;
              Result := True;
            end
        else
          Value := nil;
          Result := False;
        end;
      end;
    
      procedure FromInterface;
      const soguid: TGuid = '{4B86A9E3-E094-4E5A-954A-69048B7B6327}';
      var
        o: ISuperObject;
      begin
        if CompareMem(@GetTypeData(TypeInfo).Guid, @soguid, SizeOf(TGUID)) then
        begin
          if obj <> nil then
            TValue.Make(@obj, TypeInfo, Value) else
            begin
              o := TSuperObject.Create(stNull);
              TValue.Make(@o, TypeInfo, Value);
            end;
          Result := True;
        end else
          Result := False;
      end;
    var
      Serial: TSerialFromJson;
    begin
      if TypeInfo <> nil then
      begin
        if not SerialFromJson.TryGetValue(TypeInfo, Serial) then
          case TypeInfo.Kind of
            tkChar: FromChar;
            tkInt64: FromInt64;
            tkEnumeration, tkInteger: FromInt(obj);
            tkSet: fromSet;
            tkFloat: FromFloat(obj);
            tkString, tkLString, tkUString, tkWString: FromString;
            tkClass: FromClass;
            tkMethod: ;
            tkWChar: FromWideChar;
            tkRecord: FromRecord;
            tkPointer: ;
            tkInterface: FromInterface;
            tkArray: FromArray;
            tkDynArray: FromDynArray;
            tkClassRef: FromClassRef;
          else
            FromUnknown
          end else
          begin
            TValue.Make(nil, TypeInfo, Value);
            Result := Serial(Self, obj, Value);
          end;
      end else
        Result := False;
    end;
    
    function TSuperRttiContext.ToJson(var value: TValue; const index: ISuperObject): ISuperObject;
      procedure ToInt64;
      begin
        Result := TSuperObject.Create(SuperInt(Value.AsInt64));
      end;
    
      procedure ToChar;
      begin
        Result := TSuperObject.Create(string(Value.AsType<AnsiChar>));
      end;
    
      procedure ToInteger;
      begin
        Result := TSuperObject.Create(TValueData(Value).FAsSLong);
      end;
    
      procedure ToFloat;
      begin
        case Value.TypeData.FloatType of
          ftSingle: Result := TSuperObject.Create(TValueData(Value).FAsSingle);
          ftDouble: Result := TSuperObject.Create(TValueData(Value).FAsDouble);
          ftExtended: Result := TSuperObject.Create(TValueData(Value).FAsExtended);
          ftComp: Result := TSuperObject.Create(TValueData(Value).FAsSInt64);
          ftCurr: Result := TSuperObject.CreateCurrency(TValueData(Value).FAsCurr);
        end;
      end;
    
      procedure ToString;
      begin
        Result := TSuperObject.Create(string(Value.AsType<string>));
      end;
    
      procedure ToClass;
      var
        o: ISuperObject;
        f: TRttiField;
        v: TValue;
      begin
        if TValueData(Value).FAsObject <> nil then
        begin
          o := index[IntToStr(Integer(Value.AsObject))];
          if o = nil then
          begin
            Result := TSuperObject.Create(stObject);
            index[IntToStr(Integer(Value.AsObject))] := Result;
            for f in Context.GetType(Value.AsObject.ClassType).GetFields do
              if f.FieldType <> nil then
              begin
                v := f.GetValue(Value.AsObject);
                Result.AsObject[GetFieldName(f)] := ToJson(v, index);
              end
          end else
            Result := o;
        end else
          Result := nil;
      end;
    
      procedure ToWChar;
      begin
        Result :=  TSuperObject.Create(string(Value.AsType<WideChar>));
      end;
    
      procedure ToVariant;
      begin
        Result := SO(Value.AsVariant);
      end;
    
      procedure ToRecord;
      var
        f: TRttiField;
        v: TValue;
      begin
        Result := TSuperObject.Create(stObject);
        for f in Context.GetType(Value.TypeInfo).GetFields do
        begin
    {$IFDEF VER210}
          v := f.GetValue(IValueData(TValueData(Value).FHeapData).GetReferenceToRawData);
    {$ELSE}
          v := f.GetValue(TValueData(Value).FValueData.GetReferenceToRawData);
    {$ENDIF}
          Result.AsObject[GetFieldName(f)] := ToJson(v, index);
        end;
      end;
    
      procedure ToArray;
      var
        idx: Integer;
        ArrayData: PArrayTypeData;
    
        procedure ProcessDim(dim: Byte; const o: ISuperObject);
        var
          dt: PTypeData;
          i: Integer;
          o2: ISuperObject;
          v: TValue;
        begin
          if ArrayData.Dims[dim-1] = nil then Exit;
          dt := GetTypeData(ArrayData.Dims[dim-1]^);
          if Dim = ArrayData.DimCount then
            for i := dt.MinValue to dt.MaxValue do
            begin
              v := Value.GetArrayElement(idx);
              o.AsArray.Add(toJSon(v, index));
              inc(idx);
            end
          else
            for i := dt.MinValue to dt.MaxValue do
            begin
              o2 := TSuperObject.Create(stArray);
              o.AsArray.Add(o2);
              ProcessDim(dim + 1, o2);
            end;
        end;
      var
        i: Integer;
        v: TValue;
      begin
        Result := TSuperObject.Create(stArray);
        ArrayData := @Value.TypeData.ArrayData;
        idx := 0;
        if ArrayData.DimCount = 1 then
          for i := 0 to ArrayData.ElCount - 1 do
          begin
            v := Value.GetArrayElement(i);
            Result.AsArray.Add(toJSon(v, index))
          end
        else
          ProcessDim(1, Result);
      end;
    
      procedure ToDynArray;
      var
        i: Integer;
        v: TValue;
      begin
        Result := TSuperObject.Create(stArray);
        for i := 0 to Value.GetArrayLength - 1 do
        begin
          v := Value.GetArrayElement(i);
          Result.AsArray.Add(toJSon(v, index));
        end;
      end;
    
      procedure ToClassRef;
      begin
        if TValueData(Value).FAsClass <> nil then
          Result :=  TSuperObject.Create(string(
            TValueData(Value).FAsClass.UnitName + '.' +
            TValueData(Value).FAsClass.ClassName)) else
          Result := nil;
      end;
    
      procedure ToInterface;
    {$IFNDEF VER210}
      var
        intf: IInterface;
    {$ENDIF}
      begin
    {$IFDEF VER210}
        if TValueData(Value).FHeapData <> nil then
          TValueData(Value).FHeapData.QueryInterface(ISuperObject, Result) else
          Result := nil;
    {$ELSE}
        if TValueData(Value).FValueData <> nil then
        begin
          intf := IInterface(PPointer(TValueData(Value).FValueData.GetReferenceToRawData)^);
          if intf <> nil then
            intf.QueryInterface(ISuperObject, Result) else
            Result := nil;
        end else
          Result := nil;
    {$ENDIF}
      end;
    
    var
      Serial: TSerialToJson;
    begin
      if not SerialToJson.TryGetValue(value.TypeInfo, Serial) then
        case Value.Kind of
          tkInt64: ToInt64;
          tkChar: ToChar;
          tkSet, tkInteger, tkEnumeration: ToInteger;
          tkFloat: ToFloat;
          tkString, tkLString, tkUString, tkWString: ToString;
          tkClass: ToClass;
          tkWChar: ToWChar;
          tkVariant: ToVariant;
          tkRecord: ToRecord;
          tkArray: ToArray;
          tkDynArray: ToDynArray;
          tkClassRef: ToClassRef;
          tkInterface: ToInterface;
        else
          result := nil;
        end else
          Result := Serial(Self, value, index);
    end;
    
    { TSuperObjectHelper }
    
    constructor TSuperObjectHelper.FromJson(const obj: ISuperObject; ctx: TSuperRttiContext = nil);
    var
      v: TValue;
      ctxowned: Boolean;
    begin
      if ctx = nil then
      begin
        ctx := TSuperRttiContext.Create;
        ctxowned := True;
      end else
        ctxowned := False;
      try
        v := Self;
        if not ctx.FromJson(v.TypeInfo, obj, v) then
          raise Exception.Create('Invalid object');
      finally
        if ctxowned then
          ctx.Free;
      end;
    end;
    
    constructor TSuperObjectHelper.FromJson(const str: string; ctx: TSuperRttiContext = nil);
    begin
      FromJson(SO(str), ctx);
    end;
    
    function TSuperObjectHelper.ToJson(ctx: TSuperRttiContext = nil): ISuperObject;
    var
      v: TValue;
      ctxowned: boolean;
    begin
      if ctx = nil then
      begin
        ctx := TSuperRttiContext.Create;
        ctxowned := True;
      end else
        ctxowned := False;
      try
        v := Self;
        Result := ctx.ToJson(v, SO);
      finally
        if ctxowned then
          ctx.Free;
      end;
    end;
    
    {$ENDIF}
    
    // WenTao 新增加的排序、过滤接口。
    procedure TSuperObject.forEachForProperty(eachProp: TProc<{Key}String, {isLast: }Boolean>; eachObj: TProc<{Key}String, {isLast: }Boolean>);
    var
      item: TSuperObjectIter;
      slKeys, slArrays: TStringList;
      I: Integer;
    begin
      slKeys := TStringList.Create;
      slArrays := TStringList.Create;
      try
        if ObjectFindFirst(Self, item) then begin
          repeat
            if item.val.IsType(stArray) or item.val.IsType(stObject) then
              slArrays.Add(item.key)
            else
              slKeys.Add(item.key);
          until ObjectFindNext(item) = False;
    
          for I := 0 to slKeys.Count - 1 do
            if Assigned(eachProp) then
              eachProp(slKeys[I], (I = slKeys.Count - 1) and (slArrays.Count = 0));
    
          for I := 0 to slArrays.Count - 1 do
            if Assigned(eachObj) then
              eachObj(slArrays[I], I = slArrays.Count - 1);
        end;
      finally
        ObjectFindClose(item);
        slKeys.Free;
        slArrays.Free;
      end;
    end;
    
    procedure TSuperObject.calcMaxLen(lenDict: TDictionary<String, Integer>);
    var
      I, J, curLen: Integer;
      arr: TSuperArray;
      item, names: ISuperObject;
      curField: String;
    begin
      // 统计出所有的字段以及字段长度。
      arr := AsArray;
      for I := 0 to arr.Length - 1 do begin
        item := arr.O[I];
        names := item.AsObject.GetNames;
        for J := 0 to names.AsArray.Length - 1 do begin
          curLen := 0;
          curField := names.AsArray.S[J];
    
          if item.O[curField].IsType(stObject) or item.O[curField].IsType(stArray) then
            Continue;
    
          lenDict.TryGetValue(curField, curLen);
          curLen := Max(curLen, Length(AnsiString(item.S[curField])));
          lenDict.AddOrSetValue(curField, curLen);
        end;
      end;
    end;
    
    function TSuperObject.forEachForArray(callback: TProc<{Index: }Integer, {item: }ISuperObject, {isLast: }Boolean>): ISuperObject;
    var
      I: Integer;
      arr: TSuperArray;
    begin
      arr := AsArray;
      if arr <> nil then begin
        for I := 0 to arr.Length - 1 do begin
          callback(I, arr.O[I], I = arr.Length - 1);
        end;
      end;
    end;
    
    {$IFDEF ToStringEx}
    class function TSuperObject.escapeValue(valueStr: SOString): SOString;
    var
      ss: TStringBuilder;
      c: WideChar;
      I: Integer;
    begin
      ss := TStringBuilder.Create;
      try
        for I := 1 to Length(valueStr) do begin
          c := valueStr[I];
    
          if False then
          else if c =   #0 then ss.Append(ESC_ZERO)
          else if c =  '"' then ss.Append(ESC_QUOT)
          else if c =  '\' then ss.Append(ESC_SL)
          else if c =   #9 then ss.Append(ESC_TAB)
          else if c =  #10 then ss.Append(ESC_LF)
          else if c =  #13 then ss.Append(ESC_CR)
    (*
          // 下面这些不转换也行,可读性好。
          else if c =   #8 then ss.Append(ESC_BS)
          else if c =  #12 then ss.Append(ESC_FF)
          else if c =  '/' then ss.Append(ESC_SR)
          else if CharInSet(c, [#0..#31]) then ss.Append('\u').Append(IntToHex(Ord(c), 4))
    *)
          else ss.Append(c);
        end;
    
        Result := ss.ToString;
      finally
        ss.Free;
      end;
    end;
    
    function TSuperObject.toStringEx(AJsonType: TJsonFormatType): String;
    var
      jsonStr, resStr: String;
      jsonArray: TSuperArray;
      jo: ISuperObject;
      jsonList:  TStringList;
      I, J: Integer;
      isObject: Boolean;
    begin
      Result  := '';
      jsonStr := '';
      resStr  := '';
      isObject := False;
      J := 0;
      jsonArray      := TSuperArray.Create;
      jsonList       := TStringList.Create;
    
      if False then begin
      end else if AJsonType = ftOneLine then begin
        Result := AsString;
      end else if AJsonType = ftMultiLine then begin
        Result := AsJSon(True, False);
    
      end else if AJsonType = ftArray then begin
    
        jsonArray := AsArray;
        jsonList.Add('[' + sLineBreak);
    
        for I := 0 to jsonArray.Length - 1 do begin
          jo := jsonArray[I];
          J := J + 1;
          jsonStr := '  { ';
          jo.forEachForProperty(procedure {eachProp} (sKeys: String; AIsLast: Boolean) begin
            jsonStr := jsonStr + sKeys + ':"' + escapeValue(jo.S[sKeys]) + '"';
    
            if Not AIsLast then begin
              jsonStr := jsonStr + ', <Tab>';
            end else begin
              jsonStr := jsonStr + ' <Tab>},' + sLineBreak;
            end;
    
          end, procedure {eachObj} (sKey: String; AIsLast: Boolean) begin
            raise Exception.Create('WtJSON.toString的传入参数格式应为JSONArray!');
          end);
    
          if J = jsonArray.Length then begin
            jsonStr := wtStr.TrimAll(jsonStr, sLineBreak);
            jsonStr := wtStr.TrimRight(jsonStr, ',');
            jsonStr := jsonStr + sLineBreak;
          end;
          jsonList.Add(jsonStr);
          jsonStr := '';
        end;
    
        wtStrList.AdjustTabWidth(jsonList, '<Tab>');
    
        for I := 0 to jsonList.Count - 1 do begin
          resStr := resStr + jsonList[I];
        end;
        resStr := resStr;
        Result := wtStr.TrimRight(resStr, ' ') + ']';
    
      end else if AJsonType = ftObjectArray then begin
        jsonList.add('{' + sLineBreak);
        forEachForProperty(procedure {eachProp} (sKey: String; AIsLast: Boolean) begin
          raise Exception.Create('WtJSON.toString的传入参数格式应为JSONArrayObject!');
        end,
    
        procedure {eachObj} (sKey: String; AIsLast: Boolean)
        var
          I: Integer;
          jsonObj: ISuperObject;
        begin
          if Self[sKey].IsType(stArray) then begin
            jsonList.Add('  ' + sKey + ': [' + sLineBreak);
            jsonArray := A[sKey];
    
            for I := 0 to jsonArray.Length - 1 do begin
              jo := jsonArray[I];
              J := J + 1;
              jsonStr := '    { ';
    
              jo.forEachForProperty(procedure {eachProp} (sKeys: String; AIsLast: Boolean) begin
                jsonStr := jsonStr + sKeys + ':"' + escapeValue(jo[sKeys].AsString) + '"';
    
                if Not AIsLast then begin
                  jsonStr := jsonStr + ', <Tab>';
                end else begin
                  jsonStr := jsonStr + ' <Tab>},' + sLineBreak;
                end;
    
              end, procedure {eachObj} (sKey: String; AIsLast: Boolean) begin
                raise Exception.Create('WtJSON.toString的传入参数格式应为JSONArray!');
              end);
    
              if J = jsonArray.Length then begin
                jsonStr := wtStr.TrimAll(jsonStr, sLineBreak);
                jsonStr := wtStr.TrimRight(jsonStr, ',');
                jsonStr := jsonStr + sLineBreak;
                J := 0;
              end;
    
              jsonList.Add(jsonStr);
            end;
    
            if NOT AIsLast then begin
              jsonList.add('  ],' + sLineBreak + sLineBreak);
            end else begin
              jsonList.add('  ]' + sLineBreak + '}');
            end;
    
            wtStrList.AdjustTabWidth(jsonList, '<Tab>');
          end else if Self[sKey].IsType(stObject) then begin
            isObject := True;
            jsonObj := O[sKey];
            jsonList.Add('  ' + sKey + ' :{');
    
            jsonObj.forEachForProperty(procedure {eachProp} (sKeys: String; AIsLast: Boolean) begin
              jsonStr := jsonStr + sKeys + ': "' + escapeValue(jsonObj.S[sKeys]) + '"';
    
              if Not AIsLast then begin
                jsonStr := jsonStr + ', <Tab>';
              end else begin
                jsonStr := jsonStr + ' <Tab>},' + sLineBreak;
              end;
    
            end, procedure {eachObj} (sKey: String; AIsLast: Boolean) begin
              raise Exception.Create('WtJSON.toString的传入参数格式应为JSONArray!');
            end);
    
            jsonStr := wtStr.TrimAll(jsonStr, sLineBreak);
            jsonStr := wtStr.TrimRight(jsonStr, ',');
            jsonStr := jsonStr + sLineBreak;
    
            jsonList.Add(jsonStr);
            jsonStr := '';
          end else begin
            raise Exception.Create('WtJSON.toString的传入参数格式有误');
          end;
    
        end);
    
        if isObject then begin
          wtStrList.AdjustTabWidth(jsonList, '<Tab>');
          jsonList.Add('}')
        end;
    
        for I := 0 to jsonList.Count - 1 do begin
          resStr := resStr + jsonList[I];
        end;
    
        Result := resStr;
      end;
    end;
    {$ENDIF}
    
    procedure TSuperObject.needArray;
    begin
      if FDataType <> stArray then
        raise Exception.Create('当前对象类型必须为 JsonArray,才能执行此操作!');
    end;
    
    function TSuperObject.reverse: ISuperObject;
    var
      temp: ISuperObject;
      tempArr, arr: TSuperArray;
      I: Integer;
    begin
      temp := SO('[]');
      tempArr := temp.AsArray;
      arr := AsArray;
      for I := arr.Length - 1 downto 0 do begin
        tempArr.Add(arr[I]);
      end;
    
      Clear;
    
      for I := 0 to tempArr.Length - 1 do begin
        arr.Add(tempArr[I]);
      end;
    end;
    
    function TSuperObject.sortByField(AFieldName: String; ADataType: TSuperType = stString): ISuperObject;
    begin
      needArray;
    
      Result := sort(function(Left, Right: ISuperObject): Integer
      begin
        if False then begin
        end else if ADataType in [stDouble, stCurrency] then begin
          Result := Sign(Left.D[AFieldName] - Right.D[AFieldName]);
        end else if ADataType = stInt then begin
          Result := Left.I[AFieldName] - Right.I[AFieldName];
        end else begin
          Result := AnsiCompareStr(Left.S[AFieldName], Right.S[AFieldName]);
        end;
      end);
    end;
    
    function TSuperObject.sort(onCompare: TFunc<ISuperObject, ISuperObject, Integer>): ISuperObject;
    var
      arr: TSuperArray;
      list: TList<ISuperObject>;
      jo: ISuperObject;
      I: Integer;
    begin
      needArray;
    
      Result := SO('[]');
    
      list := TList<ISuperObject>.Create(TComparer<ISuperObject>.Construct(function(const Left, Right: ISuperObject): Integer begin
        Result := onCompare(Left, Right);
      end));
    
      try
        arr := AsArray;
    
        for I := 0 to arr.Length - 1 do begin
          list.add(arr[I]);
        end;
    
        list.Sort;
    
        arr := Result.AsArray;
    
        for jo in list do
          arr.Add(jo);
    
      finally
        list.Free;
      end;
    end;
    
    function TSuperObject.filterByField(AFieldName: String; AValue: Variant; ADataType: TSuperType = stString): ISuperObject;
    begin
      needArray;
    
      Result := filter(function(jo: ISuperObject): Boolean begin
        if False then begin
        end else if ADataType in [stDouble, stCurrency] then begin
          Result := jo.D[AFieldName] = Double(AValue);
        end else if ADataType = stInt then begin
          Result := jo.I[AFieldName] = Integer(AValue);
        end else begin
          Result := AnsiCompareStr(jo.S[AFieldName], VarToStr(AValue)) = 0;
        end;
      end)
    end;
    
    function TSuperObject.filter(onCompare: TFunc<ISuperObject, Boolean>): ISuperObject;
    var
      arr, retArr: TSuperArray;
      I: Integer;
    begin
      needArray;
    
      Result := SO('[]');
    
      arr := AsArray;
      retArr := Result.AsArray;
      for I := 0 to arr.Length - 1 do
        if onCompare(arr[I]) then
          retArr.Add(arr[I]);
    end;
    
    function TSuperObject.findByField(AFieldName: String; AValue: Variant; ADataType: TSuperType = stString): ISuperObject;
    begin
      needArray;
    
      Result := find(function(jo: ISuperObject): Boolean begin
        if False then begin
        end else if ADataType in [stDouble, stCurrency] then begin
          Result := jo.D[AFieldName] = Double(AValue);
        end else if ADataType = stInt then begin
          Result := jo.I[AFieldName] = Integer(AValue);
        end else begin
          Result := AnsiCompareStr(jo.S[AFieldName], VarToStr(AValue)) = 0;
        end;
      end)
    end;
    
    function TSuperObject.find(onCompare: TFunc<ISuperObject, Boolean>): ISuperObject;
    var
      arr: TSuperArray;
      I: Integer;
    begin
      needArray;
    
      Result := nil;
    
      arr := AsArray;
      for I := 0 to arr.Length - 1 do
        if onCompare(arr[I]) then begin
          Result := arr[I];
          Exit;
        end;
    end;
    
    {$IFDEF DEBUG}
    initialization
    
    finalization
    //  Assert(debugcount = 0, 'Memory leak');
    // 增加这行代码会让数据库监控程序在退出时,提示 N 个“Runtime error 216 at 004060A2”提示框。
    (*
    可以使用 SEH 解决。
    delphi编写的时出现 runtime error 216 at 数字 的解决方法_百度文库 http://wenku.baidu.com/link?url=qoavWEiHryeXGkYlIN29ZBeF1Hk7YexzrzHrDwsaUvGvvun41gPnJfPmFh_QZSROHu8cmnu4_Ybm3XXDWb1j0OFo9Sz1pA0tcRoiclkSOEO
    Delphi异常机制与SEH_百度文库 http://wenku.baidu.com/view/ea69faef5ef7ba0d4a733bff.html
    *)
    {$ENDIF}
    end.
    

      

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  • 原文地址:https://www.cnblogs.com/delphi2006/p/9962928.html
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