TMIn Class Reference

#include <fl.h>

Inherits TSIn.

Public Member Functions
	TMIn (const void *_Bf, const uint64 &_BfL, const bool &TakeBf=false)
	TMIn (TSIn &SIn)
	TMIn (const char *CStr)
	TMIn (const TStr &Str, bool FromFile)
	first parameter is either used as character array or file name More...
	TMIn (const TChA &ChA)
	~TMIn ()
bool	Eof ()
int	Len () const
char	GetCh ()
char	PeekCh ()
int	GetBf (const void *LBf, const TSize &LBfL)
void	Reset ()
bool	GetNextLnBf (TChA &LnChA)
uint64	GetBfC ()
uint64	GetBfL ()
void	SetBfC (uint64 Pos)
uint64	CountNewLinesInRange (uint64 Lb, uint64 Ub)
	Finds number of new line chars in interval [Lb, Ub) More...
uint64	GetLineStartPos (uint64 Ind)
	Finds beginning of line in which Ind is present. More...
uint64	GetLineEndPos (uint64 Ind)
	Finds end of line in which Ind is present. More...
char *	GetLine (uint64 Ind)
void	SkipCommentLines ()
	Move stream pointer along until a non commented line is found. More...
char *	GetBfAddr ()
Public Member Functions inherited from TSIn
	TSIn ()
	TSIn (const TStr &Str)
virtual	~TSIn ()
bool	IsFastMode () const
void	SetFastMode (const bool &_FastMode)
void	LoadCs ()
void	LoadBf (const void *Bf, const TSize &BfL)
void *	LoadNewBf (const int &BfL)
void	Load (bool &Bool)
void	Load (uchar &UCh)
void	Load (char &Ch)
void	Load (short &Short)
void	Load (ushort &UShort)
void	Load (int &Int)
void	Load (uint &UInt)
void	Load (int64 &Int)
void	Load (uint64 &UInt)
void	Load (double &Flt)
void	Load (sdouble &SFlt)
void	Load (ldouble &LFlt)
void	Load (char *&CStr, const int &MxCStrLen, const int &CStrLen)
void	Load (char *&CStr)
TSIn &	operator>> (bool &Bool)
TSIn &	operator>> (uchar &UCh)
TSIn &	operator>> (char &Ch)
TSIn &	operator>> (short &Sh)
TSIn &	operator>> (ushort &USh)
TSIn &	operator>> (int &Int)
TSIn &	operator>> (uint &UInt)
TSIn &	operator>> (int64 &Int)
TSIn &	operator>> (uint64 &UInt)
TSIn &	operator>> (float &Flt)
TSIn &	operator>> (double &Double)
TSIn &	operator>> (long double &LDouble)
bool	GetNextLn (TStr &LnStr)
bool	GetNextLn (TChA &LnChA)
Public Member Functions inherited from TSBase
	TSBase (const TSStr &Nm)
virtual	~TSBase ()
virtual TStr	GetSNm () const

Static Public Member Functions
static PSIn	New (const void *_Bf, const uint64 &_BfL, const bool &TakeBf=false)
static PSIn	New (const char *CStr)
static PSIn	New (const TStr &Str)
static PSIn	New (const TChA &ChA)
static TPt< TMIn >	New (const TStr &Str, bool FromFile)

Private Member Functions
	TMIn ()
	TMIn (const TMIn &)
TMIn &	operator= (const TMIn &)
int	FindEol (uint64 &BfN, bool &CrEnd)

Private Attributes
char *	Bf
uint64	BfC
uint64	BfL
bool	IsMemoryMapped

Friends
class	TPt< TMIn >

Additional Inherited Members
Static Public Attributes inherited from TSIn
static const TPt< TSIn >	StdIn =PSIn(new TStdIn())
Protected Attributes inherited from TSBase
TCRef	CRef
TSStr	SNm
TCs	Cs

Detailed Description

Definition at line 384 of file fl.h.

Constructor & Destructor Documentation

TMIn::TMIn ( )

private

TMIn::TMIn ( const TMIn &  )

private

TMIn::TMIn	(	const void *	_Bf,
		const uint64 &	_BfL,
		const bool &	TakeBf = false
	)

Definition at line 538 of file fl.cpp.

                                                                 :
  TSBase("Input-Memory"), TSIn("Input-Memory"), Bf(NULL), BfC(0), BfL(_BfL), IsMemoryMapped(false){
  if (TakeBf){
    Bf=(char*)_Bf;
  } else {
    Bf=new char[static_cast<size_t>(BfL)]; memmove(Bf, _Bf, static_cast<size_t>(BfL));
  }
}

TMIn::TMIn

(

TSIn &

SIn

)

Definition at line 547 of file fl.cpp.

                   :
  TSBase("Input-Memory"), TSIn("Input-Memory"), Bf(NULL), BfC(0), BfL(0), IsMemoryMapped(false){
  BfL=SIn.Len(); Bf=new char[static_cast<size_t>(BfL)];
  for (uint64 BfC=0; BfC<BfL; BfC++){Bf[BfC]=SIn.GetCh();}
}

TMIn::TMIn

(

const char *

CStr

)

Definition at line 553 of file fl.cpp.

                          :
  TSBase("Input-Memory"), TSIn("Input-Memory"), Bf(NULL), BfC(0), BfL(0), IsMemoryMapped(false){
  BfL=uint64(strlen(CStr)); Bf=new char[static_cast<size_t>(BfL+1)]; strcpy(Bf, CStr);
}

TMIn::TMIn	(	const TStr &	Str,
		bool	FromFile
	)

first parameter is either used as character array or file name

Definition at line 559 of file fl.cpp.

                                        :
  TSBase("Input-Memory"), TSIn("Input-Memory"), Bf(NULL), BfC(0), BfL(0){
  if (FromFile == false) {
    BfL=Str.Len(); Bf=new char[static_cast<size_t>(BfL)]; strncpy(Bf, Str.CStr(), static_cast<size_t>(BfL));
    IsMemoryMapped = false;
  }
  else {
#ifdef GLib_LINUX
    TStr FNm = Str;
    TFileId FileId;
    int fd;
    uint64 FLen;
    EAssertR(!FNm.Empty(), "Empty file-name.");
    FileId=fopen(FNm.CStr(), "rb");
    fd = fileno(FileId);

    EAssertR(FileId!=NULL, "Can not open file '"+FNm+"'.");

    EAssertR(
        fseek(FileId, 0, SEEK_END)==0,
        "Error seeking into file '"+TStr(FNm)+"'.");
    FLen=(uint64)ftell(FileId);
    EAssertR(
        fseek(FileId, 0, SEEK_SET)==0,
        "Error seeking into file '"+TStr(FNm)+"'.");

    // memory map contents of file
    char *mapped;
    mapped = (char *) mmap (0, FLen, PROT_READ, MAP_PRIVATE, fd, 0);
    IsMemoryMapped = true;

    if (mapped == MAP_FAILED) {
      printf("mmap failed: %d %s\n", fd, strerror (errno));
      Bf = NULL;
      BfC = BfL = 0;
    }
    else {
      Bf = mapped;
      BfC = 0;
      BfL = FLen;
    }
    IsMemoryMapped = true;
#else
    TExcept::Throw("TMIn::TMIn(TStr, Bool): GLib_LINUX undefined.\n");
#endif
  }
}

TMIn::TMIn

(

const TChA &

ChA

)

Definition at line 607 of file fl.cpp.

                         :
  TSBase("Input-Memory"), TSIn("Input-Memory"), Bf(NULL), BfC(0), BfL(0), IsMemoryMapped(false){
  BfL=ChA.Len(); Bf=new char[static_cast<size_t>(BfL)]; strncpy(Bf, ChA.CStr(), static_cast<size_t>(BfL));
}

TMIn::~TMIn

(

)

Definition at line 632 of file fl.cpp.

           {
  if (Bf!=NULL){
    if (IsMemoryMapped) {
#ifdef GLib_LINUX
      munmap(Bf, BfL);
#endif
    }
    else {
      delete[] Bf;
    }
  }
}

Member Function Documentation

uint64 TMIn::CountNewLinesInRange	(	uint64	Lb,
		uint64	Ub
	)

Finds number of new line chars in interval [Lb, Ub)

Definition at line 726 of file fl.cpp.

                                                      {
  uint64 Cnt = 0;
  if (Lb >= BfL) {
    return 0;
  }
  for (uint64 i = Lb; i < Ub; i++) {
    if (Bf[i] == '\n') {
      Cnt += 1;
    }
  }
  return Cnt;
}

bool TMIn::Eof ( )

inlinevirtual

Implements TSIn.

Definition at line 411 of file fl.h.

{return BfC==BfL;}

int TMIn::FindEol ( uint64 &  BfN, bool &  CrEnd  )

private

Definition at line 669 of file fl.cpp.

                                          {
  char Ch;
  if (BfC >= BfL) {
    // read more data, check for eof
    if (Eof()) {
      return -1;
    }
    if (CrEnd && Bf[BfC]=='\n') {
      BfC++;
      BfN = BfC-1;
      return 1;
    }
  }

  CrEnd = false;
  while (BfC < BfL) {
    Ch = Bf[BfC++];
    if (Ch=='\n') {
      BfN = BfC-1;
      return 1;
    }
    if (Ch=='\r') {
      if (BfC == BfL) {
        CrEnd = true;
        BfN = BfC-1;
        return 0;
      } else if (Bf[BfC]=='\n') {
        BfC++;
        BfN = BfC-2;
        return 1;
      }
    }
  }
  BfN = BfC;

  return 0;
}

int TMIn::GetBf ( const void *  LBf, const TSize &  LBfL  )

virtual

Implements TSIn.

Definition at line 655 of file fl.cpp.

                                                 {
  EAssertR(TSize(BfC+LBfL)<=TSize(BfL), "Reading beyond the end of stream.");
  int LBfS=0;
  for (TSize LBfC=0; LBfC<LBfL; LBfC++){
    LBfS+=(((char*)LBf)[LBfC]=Bf[BfC++]);}
  return LBfS;
}

char* TMIn::GetBfAddr ( )

inline

Definition at line 433 of file fl.h.

{return Bf;}

uint64 TMIn::GetBfC

(

)

Definition at line 713 of file fl.cpp.

                    {
  return BfC;
}

uint64 TMIn::GetBfL

(

)

Definition at line 717 of file fl.cpp.

                    {
  return BfL;
}

char TMIn::GetCh ( )

virtual

Implements TSIn.

Definition at line 645 of file fl.cpp.

                {
  EAssertR(BfC<BfL, "Reading beyond the end of stream.");
  return Bf[BfC++];
}

char * TMIn::GetLine

(

uint64

Ind

)

Definition at line 754 of file fl.cpp.

                                {
  return &Bf[Index];
}

uint64 TMIn::GetLineEndPos

(

uint64

Ind

)

Finds end of line in which Ind is present.

Definition at line 746 of file fl.cpp.

                                     {
  while (Ind < BfL && Bf[Ind] != '\n') {
    Ind++;
  }
  if (Ind == BfL) Ind--;
  return Ind;
}

uint64 TMIn::GetLineStartPos

(

uint64

Ind

)

Finds beginning of line in which Ind is present.

Definition at line 739 of file fl.cpp.

                                       {
  while (Ind > 0 && Bf[Ind-1] != '\n') {
    Ind--;
  }
  return Ind;
}

bool TMIn::GetNextLnBf ( TChA &  LnChA )

virtual

Implements TSIn.

Definition at line 707 of file fl.cpp.

                                 {
  // not implemented
  FailR(TStr::Fmt("TMIn::GetNextLnBf: not implemented").CStr());
  return false;
}

int TMIn::Len ( ) const

inlinevirtual

Implements TSIn.

Definition at line 412 of file fl.h.

{return static_cast<int>(BfL-BfC);}

PSIn TMIn::New ( const void *  _Bf, const uint64 &  _BfL, const bool &  TakeBf = false  )

static

Definition at line 612 of file fl.cpp.

                                                                     {
  return PSIn(new TMIn(_Bf, _BfL, TakeBf));
}

PSIn TMIn::New ( const char *  CStr )

static

Definition at line 616 of file fl.cpp.

                              {
  return PSIn(new TMIn(CStr));
}

PSIn TMIn::New ( const TStr &  Str )

static

Definition at line 620 of file fl.cpp.

                             {
  return PSIn(new TMIn(Str));
}

PSIn TMIn::New ( const TChA &  ChA )

static

Definition at line 628 of file fl.cpp.

                             {
  return PSIn(new TMIn(ChA));
}

PMIn TMIn::New ( const TStr &  Str, bool  FromFile  )

static

Definition at line 624 of file fl.cpp.

                                            {
  return new TMIn(Str, FromFile);
}

TMIn& TMIn::operator= ( const TMIn &  )

private

char TMIn::PeekCh ( )

virtual

Implements TSIn.

Definition at line 650 of file fl.cpp.

                 {
  EAssertR(BfC<BfL, "Reading beyond the end of stream.");
  return Bf[BfC];
}

void TMIn::Reset ( )

inlinevirtual

Reimplemented from TSIn.

Definition at line 416 of file fl.h.

{Cs=TCs(); BfC=0;}

void TMIn::SetBfC

(

uint64

Pos

)

Definition at line 721 of file fl.cpp.

                            {
  BfC = Pos;
}

void TMIn::SkipCommentLines

(

)

Move stream pointer along until a non commented line is found.

Definition at line 758 of file fl.cpp.

                            {
  while (BfC < BfL && TCh::IsHashCh(Bf[BfC])) {
    while (BfC < BfL && Bf[BfC] != '\n') {
      BfC++;
    }
    BfC++;
  }
}

Friends And Related Function Documentation

friend class TPt< TMIn >

friend

Definition at line 435 of file fl.h.

Member Data Documentation

char* TMIn::Bf

private

Definition at line 386 of file fl.h.

uint64 TMIn::BfC

private

Definition at line 387 of file fl.h.

uint64 TMIn::BfL

private

Definition at line 387 of file fl.h.

bool TMIn::IsMemoryMapped

private

Definition at line 388 of file fl.h.

---

The documentation for this class was generated from the following files:

• glib-core/fl.h
• glib-core/fl.cpp