json.h File Reference

Go to the source code of this file.

Enumerations
enum	TJsonValType {   jvtUndef, jvtNull, jvtBool, jvtNum,   jvtStr, jvtArr, jvtObj }
Functions
	UndefCopyAssign (TJsonVal)
	TJsonVal ()
static PJsonVal	New ()
	TJsonVal (TSIn &SIn)
static PJsonVal	Load (TSIn &SIn)
void	Save (TSOut &SOut) const
void	PutNull ()
void	PutBool (const bool &_Bool)
void	PutNum (const double &_Num)
void	PutStr (const TStr &_Str)
void	PutArr ()
void	AddToArr (const PJsonVal &Val)
void	PutObj ()
void	AddToObj (const TStr &KeyNm, const PJsonVal &Val)
void	AddToObj (const TStr &KeyNm, const int &Val)
void	AddToObj (const TStr &KeyNm, const double &Val)
void	AddToObj (const TStr &KeyNm, const TStr &Val)
void	AddToObj (const TStr &KeyNm, const char *Val)
void	AddToObj (const TStr &KeyNm, const bool &Val)
void	AddToObj (const TStr &KeyNm, const TJsonValV &ValV)
static PJsonVal	NewNull ()
static PJsonVal	NewBool (const bool &Bool)
static PJsonVal	NewNum (const double &Num)
static PJsonVal	NewStr (const TStr &Str)
static PJsonVal	NewArr ()
static PJsonVal	NewArr (const TJsonValV &ValV)
static PJsonVal	NewArr (const TStrV &StrV)
static PJsonVal	NewObj ()
static PJsonVal	NewObj (const TStr &KeyNm, const PJsonVal &ObjVal)
static PJsonVal	NewObj (const TStr &KeyNm, const int &ObjVal)
static PJsonVal	NewObj (const TStr &KeyNm, const double &ObjVal)
static PJsonVal	NewObj (const TStr &KeyNm, const TStr &ObjVal)
static PJsonVal	NewObj (const TStr &KeyNm, const bool &ObjVal)
TJsonValType	GetJsonValType () const
bool	IsNull () const
bool	IsBool () const
bool	IsNum () const
bool	IsStr () const
bool	IsArr () const
bool	IsObj () const
bool	GetBool () const
double	GetNum () const
TStr	GetStr () const
int	GetArrVals () const
PJsonVal	GetArrVal (const int &ValN) const
int	GetObjKeys () const
void	GetObjKeyVal (const int &KeyValN, TStr &Key, PJsonVal &Val) const
bool	IsObjKey (const TStr &Key) const
bool	IsObjKey (const char *Key) const
PJsonVal	GetObjKey (const TStr &Key) const
PJsonVal	GetObjKey (const char *Key) const
bool	GetObjBool (const TStr &Key) const
bool	GetObjBool (const char *Key) const
double	GetObjNum (const TStr &Key) const
double	GetObjNum (const char *Key) const
TStr	GetObjStr (const TStr &Key) const
TStr	GetObjStr (const char *Key) const
bool	GetObjBool (const TStr &Key, const bool &DefBool) const
bool	GetObjBool (const char *Key, const bool &DefBool) const
double	GetObjNum (const TStr &Key, const double &DefNum) const
double	GetObjNum (const char *Key, const double &DefNum) const
TStr	GetObjStr (const TStr &Key, const TStr &DefStr) const
TStr	GetObjStr (const char *Key, const TStr &DefStr) const
static PJsonVal	GetValFromLx (TILx &Lx)
static PJsonVal	GetValFromStr (const TStr &JsonStr)
static void	AddEscapeChAFromStr (const TStr &Str, TChA &ChA)
static TStr	AddEscapeStrFromStr (const TStr &Str)
static void	AddQChAFromStr (const TStr &Str, TChA &ChA)
static void	GetChAFromVal (const PJsonVal &Val, TChA &ChA)
static TStr	GetStrFromVal (const PJsonVal &Val)
Variables
ClassTPV(TJsonVal, PJsonVal, TJsonValV) private TBool	Bool
TFlt	Num
TStr	Str
TJsonValV	ValV
THash< TStr, PJsonVal >	KeyValH

---

Enumeration Type Documentation

enum TJsonValType

Enumerator:

jvtUndef
jvtNull
jvtBool
jvtNum
jvtStr
jvtArr
jvtObj

Definition at line 4 of file json.h.

             {
  jvtUndef, jvtNull, jvtBool, jvtNum, jvtStr, jvtArr, jvtObj} TJsonValType;

---

Function Documentation

void TJsonVal::AddEscapeChAFromStr	(	const TStr &	Str,
		TChA &	ChA
	)		[static]

Definition at line 122 of file json.cpp.

                                                            {
        if (TUnicodeDef::IsDef()) {
                // parse the UTF8 string (old: TUStr InUStr(InStr);)
                TIntV UStr; TUnicodeDef::GetDef()->DecodeUtf8(Str, UStr);
                // escape the string
                for (int ChN = 0; ChN < UStr.Len(); ChN++) {
                        const int UCh = UStr[ChN];
                        if (UCh < 0x80) {
                                // 7-bit ascii
                                const char Ch = (char)UCh;
                                switch (Ch) {
                                        case '"' : ChA.AddCh('\\'); ChA.AddCh('"'); break;
                                        case '\\' : ChA.AddCh('\\'); ChA.AddCh('\\'); break;
                                        case '/' : ChA.AddCh('\\'); ChA.AddCh('/'); break;
                                        case '\b' : ChA.AddCh('\\'); ChA.AddCh('b'); break;
                                        case '\f' : ChA.AddCh('\\'); ChA.AddCh('f'); break;
                                        case '\n' : ChA.AddCh('\\'); ChA.AddCh('n'); break;
                                        case '\r' : ChA.AddCh('\\'); ChA.AddCh('r'); break;
                                        case '\t' : ChA.AddCh('\\'); ChA.AddCh('t'); break;
                                        default :
                                                ChA.AddCh(Ch);
                                }
                        } else {
                                // escape
                                ChA += "\\u";
                                ChA += TStr::Fmt("%04x", UCh);
                        }
                }
        } else {
                // escape the string
                for (int ChN = 0; ChN < Str.Len(); ChN++) {
                        const char Ch = Str[ChN];
                        if ((Ch & 0x80) == 0) {
                                // 7-bit ascii
                                switch (Ch) {
                                        case '"' : ChA.AddCh('\\'); ChA.AddCh('"'); break;
                                        case '\\' : ChA.AddCh('\\'); ChA.AddCh('\\'); break;
                                        case '/' : ChA.AddCh('\\'); ChA.AddCh('/'); break;
                                        case '\b' : ChA.AddCh('\\'); ChA.AddCh('b'); break;
                                        case '\f' : ChA.AddCh('\\'); ChA.AddCh('f'); break;
                                        case '\n' : ChA.AddCh('\\'); ChA.AddCh('n'); break;
                                        case '\r' : ChA.AddCh('\\'); ChA.AddCh('r'); break;
                                        case '\t' : ChA.AddCh('\\'); ChA.AddCh('t'); break;
                                        default : ChA.AddCh(Ch);
                                }
                        } else {
                                // escape
                                ChA += "\\u";
                                ChA += TStr::Fmt("%02x", (int)Ch);
                        }
                }
        }
}

static TStr AddEscapeStrFromStr

(

const TStr &

Str

)

[static]

Definition at line 101 of file json.h.

                                                   { 
          TChA ChA; AddEscapeChAFromStr(Str, ChA); return ChA; }

void TJsonVal::AddQChAFromStr	(	const TStr &	Str,
		TChA &	ChA
	)		[static]

Definition at line 176 of file json.cpp.

                                                       {
  ChA+="\"";
  AddEscapeChAFromStr(Str, ChA);
  ChA+="\"";
}

void AddToArr

(

const PJsonVal &

Val

)

Definition at line 30 of file json.h.

                                    {
    EAssert(JsonValType==jvtArr); ValV.Add(Val);}

void AddToObj	(	const TStr &	KeyNm,
		const PJsonVal &	Val
	)

Definition at line 33 of file json.h.

                                                       {
    EAssert(JsonValType==jvtObj); KeyValH.AddDat(KeyNm, Val);}

void AddToObj	(	const TStr &	KeyNm,
		const int &	Val
	)

Definition at line 35 of file json.h.

{ AddToObj(KeyNm, NewNum((double)Val)); }

void AddToObj	(	const TStr &	KeyNm,
		const double &	Val
	)

Definition at line 36 of file json.h.

{ AddToObj(KeyNm, NewNum(Val)); }

void AddToObj	(	const TStr &	KeyNm,
		const TStr &	Val
	)

Definition at line 37 of file json.h.

{ AddToObj(KeyNm, NewStr(Val)); }

void AddToObj	(	const TStr &	KeyNm,
		const char *	Val
	)

Definition at line 38 of file json.h.

{ AddToObj(KeyNm, NewStr(Val)); }

void AddToObj	(	const TStr &	KeyNm,
		const bool &	Val
	)

Definition at line 39 of file json.h.

{ AddToObj(KeyNm, NewBool(Val)); }

void AddToObj	(	const TStr &	KeyNm,
		const TJsonValV &	ValV
	)

Definition at line 40 of file json.h.

{ AddToObj(KeyNm, NewArr(ValV)); }

PJsonVal GetArrVal

(

const int &

ValN

)

const

Definition at line 76 of file json.h.

{return ValV[ValN];}

int GetArrVals

(

)

const

Definition at line 75 of file json.h.

{EAssert(IsArr()); return ValV.Len();}

bool GetBool

(

)

const

Definition at line 72 of file json.h.

{EAssert(IsBool()); return Bool;}

void TJsonVal::GetChAFromVal	(	const PJsonVal &	Val,
		TChA &	ChA
	)		[static]

Definition at line 182 of file json.cpp.

                                                          {
  switch (Val->GetJsonValType()){
    case jvtNull: 
      ChA+="null"; break;
    case jvtBool:
      if (Val->GetBool()){ChA+="true";} else {ChA+="false";} break;
    case jvtNum: 
      ChA+=TStr::Fmt("%g", Val->GetNum()); break;
    case jvtStr:
      AddQChAFromStr(Val->GetStr(), ChA); break;
    case jvtArr:
      ChA+="[";
      for (int ArrValN=0; ArrValN<Val->GetArrVals(); ArrValN++){
        if (ArrValN>0){ChA+=", ";}
        GetChAFromVal(Val->GetArrVal(ArrValN), ChA);
      }
      ChA+="]"; 
      break;
    case jvtObj:
      ChA+="{";
      for (int ObjKeyN=0; ObjKeyN<Val->GetObjKeys(); ObjKeyN++){
        if (ObjKeyN>0){ChA+=", ";}
        TStr ObjKey; PJsonVal ObjVal; Val->GetObjKeyVal(ObjKeyN, ObjKey, ObjVal);
        AddQChAFromStr(ObjKey, ChA);
        ChA+=":";
        GetChAFromVal(ObjVal, ChA);
      }
      ChA+="}"; 
      break;
        default: TExcept::Throw("Error parsing json");
  }
}

TJsonValType GetJsonValType

(

)

const

Definition at line 63 of file json.h.

{return JsonValType;}

double GetNum

(

)

const

Definition at line 73 of file json.h.

{EAssert(IsNum()); return Num;}

bool GetObjBool

(

const TStr &

Key

)

const

Definition at line 84 of file json.h.

{ return GetObjKey(Key)->GetBool(); }

bool GetObjBool

(

const char *

Key

)

const

Definition at line 85 of file json.h.

{ return GetObjKey(Key)->GetBool(); }

bool TJsonVal::GetObjBool	(	const TStr &	Key,
		const bool &	DefBool
	)		const

Definition at line 31 of file json.cpp.

                                                                    { 
  EAssert(IsObj());
  return (IsObjKey(Key)) ? KeyValH.GetDat(Key)->GetBool() : DefBool;
}

bool TJsonVal::GetObjBool	(	const char *	Key,
		const bool &	DefBool
	)		const

Definition at line 36 of file json.cpp.

                                                                    { 
  EAssert(IsObj());
  return (IsObjKey(Key)) ? KeyValH.GetDat(Key)->GetBool() : DefBool;
}

PJsonVal TJsonVal::GetObjKey

(

const TStr &

Key

)

const

Definition at line 19 of file json.cpp.

                                                  {
  EAssert(IsObj());
  EAssert(IsObjKey(Key)); 
  return KeyValH.GetDat(Key);
}

PJsonVal TJsonVal::GetObjKey

(

const char *

Key

)

const

Definition at line 25 of file json.cpp.

                                                  {
  EAssert(IsObj());
  EAssert(IsObjKey(Key));
  return KeyValH.GetDat(Key);
}

int GetObjKeys

(

)

const

Definition at line 77 of file json.h.

{EAssert(IsObj()); return KeyValH.Len();}

void GetObjKeyVal	(	const int &	KeyValN,
		TStr &	Key,
		PJsonVal &	Val
	)		const

Definition at line 78 of file json.h.

                                                                        {
    EAssert(IsObj()); Key=KeyValH.GetKey(KeyValN); Val=KeyValH[KeyValN];}

double GetObjNum

(

const TStr &

Key

)

const

Definition at line 86 of file json.h.

{ return GetObjKey(Key)->GetNum(); }

double GetObjNum

(

const char *

Key

)

const

Definition at line 87 of file json.h.

{ return GetObjKey(Key)->GetNum(); }

double TJsonVal::GetObjNum	(	const TStr &	Key,
		const double &	DefNum
	)		const

Definition at line 41 of file json.cpp.

                                                                      { 
  EAssert(IsObj());
  return (IsObjKey(Key)) ? KeyValH.GetDat(Key)->GetNum() : DefNum;
} 

double TJsonVal::GetObjNum	(	const char *	Key,
		const double &	DefNum
	)		const

Definition at line 46 of file json.cpp.

                                                                      { 
  EAssert(IsObj());
  return (IsObjKey(Key)) ? KeyValH.GetDat(Key)->GetNum() : DefNum;
}

TStr GetObjStr

(

const TStr &

Key

)

const

Definition at line 88 of file json.h.

{ return GetObjKey(Key)->GetStr(); }

TStr GetObjStr

(

const char *

Key

)

const

Definition at line 89 of file json.h.

{ return GetObjKey(Key)->GetStr(); }

TStr TJsonVal::GetObjStr	(	const TStr &	Key,
		const TStr &	DefStr
	)		const

Definition at line 51 of file json.cpp.

                                                                  { 
  EAssert(IsObj());
  return (IsObjKey(Key)) ? KeyValH.GetDat(Key)->GetStr() : DefStr;
}

TStr TJsonVal::GetObjStr	(	const char *	Key,
		const TStr &	DefStr
	)		const

Definition at line 56 of file json.cpp.

                                                                  { 
  EAssert(IsObj());
  return (IsObjKey(Key)) ? KeyValH.GetDat(Key)->GetStr() : DefStr;
}

TStr GetStr

(

)

const

Definition at line 74 of file json.h.

{EAssert(IsStr()); return Str;}

TStr TJsonVal::GetStrFromVal

(

const PJsonVal &

Val

)

[static]

Definition at line 215 of file json.cpp.

                                               {
  TChA ChA;
  GetChAFromVal(Val, ChA);
  return ChA;
}

PJsonVal TJsonVal::GetValFromLx

(

TILx &

Lx

)

[static]

Definition at line 61 of file json.cpp.

                                       {
  static TFSet ValExpect=TFSet()|syIdStr|syFlt|syQStr|syLBracket|syLBrace;
  PJsonVal Val=TJsonVal::New();
  if ((Lx.Sym==syIdStr)&&(Lx.Str=="null")){
    Val->PutNull(); Lx.GetSym();
  } else if ((Lx.Sym==syIdStr)&&(Lx.Str=="true")){
    Val->PutBool(true); Lx.GetSym();
  } else if ((Lx.Sym==syIdStr)&&(Lx.Str=="false")){
    Val->PutBool(false); Lx.GetSym();
  } else if (Lx.Sym==syFlt){
    Val->PutNum(Lx.Flt); Lx.GetSym();
  } else if (Lx.Sym==syQStr){
    Val->PutStr(Lx.Str); Lx.GetSym();
  } else if (Lx.Sym==syLBracket){
    Val->PutArr(); Lx.GetSym(ValExpect); // added ValExpect to correctyl parse arrays of floats
    if (Lx.Sym!=syRBracket){
      forever{
        PJsonVal SubVal=TJsonVal::GetValFromLx(Lx);
        Val->AddToArr(SubVal);
        if (Lx.Sym==syComma){Lx.GetSym(ValExpect);} 
        else if (Lx.Sym==syRBracket){break;} 
        else {TExcept::Throw("JSON Array not properly formed.");}
      }
    }
    Lx.GetSym();
  } else if (Lx.Sym==syLBrace){
    Val->PutObj(); Lx.GetSym(TFSet()|syRBrace|syQStr);
    if (Lx.Sym!=syRBrace){
      forever{
        TStr SubKey=Lx.Str; 
        Lx.GetSym(syColon); 
        Lx.GetSym(ValExpect);
        PJsonVal SubVal=TJsonVal::GetValFromLx(Lx);
        Val->AddToObj(SubKey, SubVal);
        if (Lx.Sym==syComma){Lx.GetSym(TFSet()|syQStr);} 
        else if (Lx.Sym==syRBrace){break;} 
        else {TExcept::Throw("JSON Object not properly formed.");}
      }
    }
    Lx.GetSym();
  } else {
    TExcept::Throw("Unexpected JSON symbol.");
  }
  return Val;
}

static PJsonVal GetValFromStr

(

const TStr &

JsonStr

)

[static]

bool IsArr

(

)

const

Definition at line 68 of file json.h.

{return JsonValType==jvtArr;}

bool IsBool

(

)

const

Definition at line 65 of file json.h.

{return JsonValType==jvtBool;}

bool IsNull

(

)

const

Definition at line 64 of file json.h.

{return JsonValType==jvtNull;}

bool IsNum

(

)

const

Definition at line 66 of file json.h.

{return JsonValType==jvtNum;}

bool IsObj

(

)

const

Definition at line 69 of file json.h.

{return JsonValType==jvtObj;}

bool IsObjKey

(

const TStr &

Key

)

const

Definition at line 80 of file json.h.

{EAssert(IsObj()); return KeyValH.IsKey(Key);}

bool IsObjKey

(

const char *

Key

)

const

Definition at line 81 of file json.h.

{EAssert(IsObj()); return KeyValH.IsKey(Key);}

bool IsStr

(

)

const

Definition at line 67 of file json.h.

{return JsonValType==jvtStr;}

static PJsonVal Load

(

TSIn &

SIn

)

[static]

Definition at line 21 of file json.h.

{return new TJsonVal(SIn);}

static PJsonVal New

(

)

[static]

Definition at line 18 of file json.h.

                       {
    return new TJsonVal();}

static PJsonVal NewArr

(

)

[static]

Definition at line 47 of file json.h.

{ PJsonVal Val = TJsonVal::New(); Val->PutArr(); return Val; }

static PJsonVal NewArr

(

const TJsonValV &

ValV

)

[static]

static PJsonVal NewArr

(

const TStrV &

StrV

)

[static]

static PJsonVal NewBool

(

const bool &

Bool

)

[static]

Definition at line 44 of file json.h.

{ PJsonVal Val = TJsonVal::New(); Val->PutBool(Bool); return Val; }

static PJsonVal NewNull

(

)

[static]

Definition at line 43 of file json.h.

{ PJsonVal Val = TJsonVal::New(); Val->PutNull(); return Val; }

static PJsonVal NewNum

(

const double &

Num

)

[static]

Definition at line 45 of file json.h.

{ PJsonVal Val = TJsonVal::New(); Val->PutNum(Num); return Val; }

static PJsonVal NewObj

(

)

[static]

Definition at line 50 of file json.h.

{ PJsonVal Val = TJsonVal::New(); Val->PutObj(); return Val; }

static PJsonVal NewObj	(	const TStr &	KeyNm,
		const PJsonVal &	ObjVal
	)		[static]

Definition at line 51 of file json.h.

                                                                    {
          PJsonVal Val = TJsonVal::New(); Val->PutObj(); Val->AddToObj(KeyNm, ObjVal); return Val; }

static PJsonVal NewObj	(	const TStr &	KeyNm,
		const int &	ObjVal
	)		[static]

Definition at line 53 of file json.h.

                                                               {
          PJsonVal Val = TJsonVal::New(); Val->PutObj(); Val->AddToObj(KeyNm, ObjVal); return Val; }

static PJsonVal NewObj	(	const TStr &	KeyNm,
		const double &	ObjVal
	)		[static]

Definition at line 55 of file json.h.

                                                                  {
          PJsonVal Val = TJsonVal::New(); Val->PutObj(); Val->AddToObj(KeyNm, ObjVal); return Val; }

static PJsonVal NewObj	(	const TStr &	KeyNm,
		const TStr &	ObjVal
	)		[static]

Definition at line 57 of file json.h.

                                                                {
          PJsonVal Val = TJsonVal::New(); Val->PutObj(); Val->AddToObj(KeyNm, ObjVal); return Val; }

static PJsonVal NewObj	(	const TStr &	KeyNm,
		const bool &	ObjVal
	)		[static]

Definition at line 59 of file json.h.

                                                                {
          PJsonVal Val = TJsonVal::New(); Val->PutObj(); Val->AddToObj(KeyNm, ObjVal); return Val; }

static PJsonVal NewStr

(

const TStr &

Str

)

[static]

Definition at line 46 of file json.h.

{ PJsonVal Val = TJsonVal::New(); Val->PutStr(Str); return Val; }

void PutArr

(

)

Definition at line 29 of file json.h.

{JsonValType=jvtArr;}

void PutBool

(

const bool &

_Bool

)

Definition at line 26 of file json.h.

{JsonValType=jvtBool; Bool=_Bool;}

void PutNull

(

)

Definition at line 25 of file json.h.

{JsonValType=jvtNull;}

void PutNum

(

const double &

_Num

)

Definition at line 27 of file json.h.

{JsonValType=jvtNum; Num=_Num;}

void PutObj

(

)

Definition at line 32 of file json.h.

{JsonValType=jvtObj;}

void PutStr

(

const TStr &

_Str

)

Definition at line 28 of file json.h.

{JsonValType=jvtStr; Str=_Str;}

void Save

(

TSOut &

SOut

)

const

Definition at line 22 of file json.h.

{}

TJsonVal

(

)

Definition at line 17 of file json.h.

: JsonValType(jvtUndef){}

TJsonVal

(

TSIn &

SIn

)

Definition at line 20 of file json.h.

{}

UndefCopyAssign

(

TJsonVal

)

---

Variable Documentation

ClassTPV (TJsonVal, PJsonVal, TJsonValV) private TBool Bool

Definition at line 7 of file json.h.

THash<TStr, PJsonVal> KeyValH

Definition at line 14 of file json.h.

TFlt Num

Definition at line 11 of file json.h.

TStr Str

Definition at line 12 of file json.h.

TJsonValV ValV

Definition at line 13 of file json.h.