#include <ss.h>

Collaboration diagram for TSsParser:

Public Member Functions
	TSsParser (const TStr &FNm, const TSsFmt _SsFmt=ssfTabSep, const bool &_SkipLeadBlanks=false, const bool &_SkipCmt=true, const bool &_SkipEmptyFld=false)
	Constructor.
	TSsParser (const TStr &FNm, const char &Separator, const bool &_SkipLeadBlanks=false, const bool &_SkipCmt=true, const bool &_SkipEmptyFld=false)
	Constructor.
	~TSsParser ()
bool	Next ()
	Loads next line from the input file.
bool	NextSlow ()
	Loads next line from the input file (older, slow implementation - deprecated).
int	Len () const
	Returns the number of fields in the current line.
int	GetFlds () const
	Returns the number of fields in the current line.
uint64	GetLineNo () const
	Returns the line number of the current line.
bool	IsCmt () const
	Checks whether the current line is a comment (starts with '#').
bool	Eof () const
	Checks for end of file.
const TChA &	GetLnStr () const
	Returns the current line.
void	ToLc ()
	Transforms the current line to lower case.
const char *	GetFld (const int &FldN) const
	Returns the contents of the field at index `FldN`.
char *	GetFld (const int &FldN)
	Returns the contents of the field at index `FldN`.
const char *	operator[] (const int &FldN) const
	Returns the contents of the field at index `FldN`.
char *	operator[] (const int &FldN)
	Returns the contents of the field at index `FldN`.
bool	GetInt (const int &FldN, int &Val) const
	If the field `FldN` is an integer its value is returned in `Val` and the function returns `true`.
int	GetInt (const int &FldN) const
	Assumes `FldN` is an integer its value is returned. If `FldN` is not an integer an exception is thrown.
bool	IsInt (const int &FldN) const
	Checks whether fields `FldN` is an integer.
bool	GetFlt (const int &FldN, double &Val) const
	If the field `FldN` is a float its value is returned in `Val` and the function returns `true`.
bool	IsFlt (const int &FldN) const
	Checks whether fields `FldN` is a float.
double	GetFlt (const int &FldN) const
	Assumes `FldN` is a floating point number its value is returned. If `FldN` is not an integer an exception is thrown.
const char *	DumpStr () const
Static Public Member Functions
static PSsParser	New (const TStr &FNm, const TSsFmt SsFmt)
Private Member Functions
	UndefDefaultCopyAssign (TSsParser)
Private Attributes
TCRef	CRef
TSsFmt	SsFmt
	Separator type.
bool	SkipLeadBlanks
	Ignore leading whitespace characters in a line.
bool	SkipCmt
	Skip comments (lines starting with #).
bool	SkipEmptyFld
	Skip empty fields (i.e., multiple consecutive separators are considered as one).
uint64	LineCnt
	Number of processed lines so far.
char	SplitCh
	Separator character (if one of the non-started separators is used)
TChA	LineStr
	Current line.
TVec< char * >	FldV
	Pointers to fields of the current line.
PSIn	FInPt
	Pointer to the input file stream.
Friends
class	TPt< TSsParser >

Detailed Description

Definition at line 72 of file ss.h.

Constructor & Destructor Documentation

TSsParser::TSsParser	(	const TStr &	FNm,
		const TSsFmt	_SsFmt = `ssfTabSep`,
		const bool &	_SkipLeadBlanks = `false`,
		const bool &	_SkipCmt = `true`,
		const bool &	_SkipEmptyFld = `false`
	)

Constructor.

Parameters:

FNm	Input filename. Can be a text file or a compressed file.
_SsFmt	Spread-sheet separator format. Each line will be broken in a set of fields, where the boundary between the fields is defined by the `_SsFmt`.
_SkipLeadBlanks	If `true` leading/trailing white-spaces of the line will be ignored.
_SkipCmt	If `true` lines starting with '#' will be considered as comments and will be skipped.
_SkipEmptyFld	If `true` then empty fields (consecutive occurrences of the separator) will be ignored.

Definition at line 351 of file ss.cpp.

References FailR, FInPt, TStr::GetFExt(), TZipIn::IsZipExt(), New(), SplitCh, ssfCommaSep, SsFmt, ssfSemicolonSep, ssfSpaceSep, ssfTabSep, ssfVBar, and ssfWhiteSep.

                                                                                                                                       : SsFmt(_SsFmt), 
 SkipLeadBlanks(_SkipLeadBlanks), SkipCmt(_SkipCmt), SkipEmptyFld(_SkipEmptyFld), LineCnt(0), /*Bf(NULL),*/ SplitCh('\t'), LineStr(), FldV(), FInPt(NULL) {
  if (TZipIn::IsZipExt(FNm.GetFExt())) { FInPt = TZipIn::New(FNm); }
  else { FInPt = TFIn::New(FNm); }
  //Bf = new char [BfLen];
  switch(SsFmt) {
    case ssfTabSep : SplitCh = '\t'; break;
    case ssfCommaSep : SplitCh = ','; break;
    case ssfSemicolonSep : SplitCh = ';'; break;
    case ssfVBar : SplitCh = '|'; break;
    case ssfSpaceSep : SplitCh = ' '; break;
    case ssfWhiteSep: SplitCh = ' '; break;
    default: FailR("Unknown separator character.");
  }
}

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TSsParser::TSsParser	(	const TStr &	FNm,
		const char &	Separator,
		const bool &	_SkipLeadBlanks = `false`,
		const bool &	_SkipCmt = `true`,
		const bool &	_SkipEmptyFld = `false`
	)

Constructor.

Parameters:

FNm	Input filename. Can be a text file or a compressed file.
Separator	Spread-sheet separator character. Each line will be broken in a set of fields, where the boundary between the fields is the `Separator` character.
_SkipLeadBlanks	If `true` leading/trailing white-spaces of the line will be ignored.
_SkipCmt	If `true` lines starting with '#' will be considered as comments and will be skipped.
_SkipEmptyFld	If `true` then empty fields (consecutive occurrences of the separator) will be ignored.

Definition at line 367 of file ss.cpp.

References FInPt, TStr::GetFExt(), TZipIn::IsZipExt(), New(), and SplitCh.

                                                                                                                                         : SsFmt(ssfSpaceSep), 
 SkipLeadBlanks(_SkipLeadBlanks), SkipCmt(_SkipCmt), SkipEmptyFld(_SkipEmptyFld), LineCnt(0), /*Bf(NULL),*/ SplitCh('\t'), LineStr(), FldV(), FInPt(NULL) {
  if (TZipIn::IsZipExt(FNm.GetFExt())) { FInPt = TZipIn::New(FNm); }
  else { FInPt = TFIn::New(FNm); }
  SplitCh = Separator;
}

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TSsParser::~TSsParser ( )

Definition at line 374 of file ss.cpp.

                      {
  //if (Bf != NULL) { delete [] Bf; }
}

Member Function Documentation

const char * TSsParser::DumpStr ( ) const

Definition at line 484 of file ss.cpp.

References TChA::Clr(), TChA::CStr(), FldV, TStr::Fmt(), and TVec< TVal, TSizeTy >::Len().

                                     {
  static TChA ChA(10*1024);
  ChA.Clr();
  for (int i = 0; i < FldV.Len(); i++) {
    ChA += TStr::Fmt("  %d: '%s'\n", i, FldV[i]);
  }
  return ChA.CStr();
}

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bool TSsParser::Eof ( ) const [inline]

Checks for end of file.

Definition at line 122 of file ss.h.

Referenced by TSnap::LoadPajek().

{ return FInPt->Eof(); }

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const char* TSsParser::GetFld ( const int & FldN ) const [inline]

Returns the contents of the field at index FldN.

Definition at line 129 of file ss.h.

Referenced by GetFlt(), GetInt(), and TTimeNENet::LoadEdgeTm().

{ return FldV[FldN]; }

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char* TSsParser::GetFld ( const int & FldN ) [inline]

Returns the contents of the field at index FldN.

Definition at line 131 of file ss.h.

{ return FldV[FldN]; }

int TSsParser::GetFlds ( ) const [inline]

Returns the number of fields in the current line.

Definition at line 116 of file ss.h.

Referenced by TAGMUtil::LoadCmtyVV(), and TNcpGraphsBase::TNcpGraphsBase().

{ return Len(); }

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bool TSsParser::GetFlt	(	const int &	FldN,
		double &	Val
	)		const

If the field FldN is a float its value is returned in Val and the function returns true.

Definition at line 462 of file ss.cpp.

References GetFld(), TCh::IsNum(), and TCh::IsWs().

Referenced by TNcpGraphsBase::TNcpGraphsBase().

                                                         {
  // parsing format {ws} [+/-] +{d} ([.]{d}) ([E|e] [+/-] +{d})
  const char *c = GetFld(FldN);
  while (TCh::IsWs(*c)) { c++; }
  if (*c=='+' || *c=='-') { c++; }
  if (! TCh::IsNum(*c) && *c!='.') { return false; }
  while (TCh::IsNum(*c)) { c++; }
  if (*c == '.') {
    c++;
    while (TCh::IsNum(*c)) { c++; }
  }
  if (*c=='e' || *c == 'E') {
    c++;
    if (*c == '+' || *c == '-' ) { c++; }
    if (! TCh::IsNum(*c)) { return false; }
    while (TCh::IsNum(*c)) { c++; }
  }
  if (*c != 0) { return false; }
  Val = atof(GetFld(FldN));
  return true;
}

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double TSsParser::GetFlt ( const int & FldN ) const [inline]

Assumes FldN is a floating point number its value is returned. If FldN is not an integer an exception is thrown.

Definition at line 148 of file ss.h.

References IAssert.

                                       {
    double Val=0.0; IAssert(GetFlt(FldN, Val)); return Val; }

bool TSsParser::GetInt	(	const int &	FldN,
		int &	Val
	)		const

If the field FldN is an integer its value is returned in Val and the function returns true.

Definition at line 443 of file ss.cpp.

References GetFld(), TCh::GetNum(), TCh::IsNum(), and TCh::IsWs().

Referenced by TAGMUtil::LoadCmtyVV(), TSnap::LoadConnList(), TSnap::LoadEdgeList(), TTimeNENet::LoadFlickr(), and TSnap::LoadPajek().

                                                      {
  // parsing format {ws} [+/-] +{ddd}
  int _Val = -1;
  bool Minus=false;
  const char *c = GetFld(FldN);
  while (TCh::IsWs(*c)) { c++; }
  if (*c=='-') { Minus=true; c++; }
  if (! TCh::IsNum(*c)) { return false; }
  _Val = TCh::GetNum(*c);  c++;
  while (TCh::IsNum(*c)){ 
    _Val = 10 * _Val + TCh::GetNum(*c); 
    c++; 
  }
  if (Minus) { _Val = -_Val; }
  if (*c != 0) { return false; }
  Val = _Val;
  return true;
}

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int TSsParser::GetInt ( const int & FldN ) const [inline]

Assumes FldN is an integer its value is returned. If FldN is not an integer an exception is thrown.

Definition at line 139 of file ss.h.

References TStr::Fmt(), and IAssertR.

                                    {
    int Val=0; IAssertR(GetInt(FldN, Val), TStr::Fmt("Field %d not INT.\n%s", FldN, DumpStr()).CStr()); return Val; }

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uint64 TSsParser::GetLineNo ( ) const [inline]

Returns the line number of the current line.

Definition at line 118 of file ss.h.

Referenced by TTimeNENet::LoadFlickr().

{ return LineCnt; }

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const TChA& TSsParser::GetLnStr ( ) const [inline]

Returns the current line.

Definition at line 124 of file ss.h.

{ return LineStr; }

bool TSsParser::IsCmt ( ) const [inline]

Checks whether the current line is a comment (starts with '#').

Definition at line 120 of file ss.h.

Referenced by TTimeNENet::LoadEdgeTm().

{ return Len()>0 && GetFld(0)[0] == '#'; }

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bool TSsParser::IsFlt ( const int & FldN ) const [inline]

Checks whether fields FldN is a float.

Definition at line 146 of file ss.h.

Referenced by TNcpGraphsBase::TNcpGraphsBase().

{ double v; return GetFlt(FldN, v); }

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bool TSsParser::IsInt ( const int & FldN ) const [inline]

Checks whether fields FldN is an integer.

Definition at line 142 of file ss.h.

Referenced by TAGMUtil::LoadCmtyVV(), TSnap::LoadConnList(), and TSnap::LoadPajek().

{ int v; return GetInt(FldN, v); }

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int TSsParser::Len ( ) const [inline]

Returns the number of fields in the current line.

Definition at line 114 of file ss.h.

Referenced by TSnap::LoadConnList(), TSnap::LoadConnListStr(), TTimeNENet::LoadEdgeTm(), and TSnap::LoadPajek().

{ return FldV.Len(); }

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static PSsParser TSsParser::New	(	const TStr &	FNm,
		const TSsFmt	SsFmt
	)		`[inline, static]`

Definition at line 102 of file ss.h.

Referenced by TSsParser().

{ return new TSsParser(FNm, SsFmt); }

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bool TSsParser::Next ( )

Loads next line from the input file.

If end of file is reached, return value is false.

Definition at line 410 of file ss.cpp.

References TVec< TVal, TSizeTy >::Add(), TChA::Clr(), TVec< TVal, TSizeTy >::Clr(), TChA::CStr(), TVec< TVal, TSizeTy >::DelLast(), TChA::Empty(), TVec< TVal, TSizeTy >::Empty(), FInPt, FldV, TSIn::GetNextLnBf(), TCh::IsWs(), TVec< TVal, TSizeTy >::Last(), LineCnt, LineStr, SkipCmt, SkipEmptyFld, SkipLeadBlanks, SplitCh, SsFmt, and ssfWhiteSep.

Referenced by TAGMUtil::LoadCmtyVV(), TSnap::LoadConnList(), TSnap::LoadConnListStr(), TSnap::LoadEdgeList(), TSnap::LoadEdgeListStr(), TAGMUtil::LoadEdgeListStr(), TTimeNENet::LoadEdgeTm(), TTimeNENet::LoadFlickr(), TSnap::LoadPajek(), and TNcpGraphsBase::TNcpGraphsBase().

                     { // split on SplitCh
  FldV.Clr(false);
  LineStr.Clr();
  FldV.Clr();
  LineCnt++;
  if (! FInPt->GetNextLnBf(LineStr)) { return false; }
  if (SkipCmt && !LineStr.Empty() && LineStr[0]=='#') { return Next(); }

  char* cur = LineStr.CStr();
  if (SkipLeadBlanks) { // skip leading blanks
    while (*cur && TCh::IsWs(*cur)) { cur++; }
  }
  char *last = cur;
  while (*cur) {
    if (SsFmt == ssfWhiteSep) { while (*cur && ! TCh::IsWs(*cur)) { cur++; } } 
    else { while (*cur && *cur!=SplitCh) { cur++; } }
    if (*cur == 0) { break; }
    *cur = 0;  cur++;
    FldV.Add(last);  last = cur;
    if (SkipEmptyFld && strlen(FldV.Last())==0) { FldV.DelLast(); } // skip empty fields
  }
  FldV.Add(last);  // add last field
  if (SkipEmptyFld && FldV.Empty()) { return Next(); } // skip empty lines
  return true; 
}

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bool TSsParser::NextSlow ( )

Loads next line from the input file (older, slow implementation - deprecated).

If end of file is reached, return value is false. This function is deprecated, use Next instead.

Definition at line 382 of file ss.cpp.

References TVec< TVal, TSizeTy >::Add(), TChA::Clr(), TVec< TVal, TSizeTy >::Clr(), TChA::CStr(), TVec< TVal, TSizeTy >::DelLast(), TChA::Empty(), TVec< TVal, TSizeTy >::Empty(), FInPt, FldV, TSIn::GetNextLn(), TCh::IsWs(), TVec< TVal, TSizeTy >::Last(), LineCnt, LineStr, SkipCmt, SkipEmptyFld, SkipLeadBlanks, SplitCh, SsFmt, and ssfWhiteSep.

                         { // split on SplitCh
  FldV.Clr(false);
  LineStr.Clr();
  FldV.Clr();
  LineCnt++;
  if (! FInPt->GetNextLn(LineStr)) { return false; }
  if (SkipCmt && !LineStr.Empty() && LineStr[0]=='#') { return NextSlow(); }

  char* cur = LineStr.CStr();
  if (SkipLeadBlanks) { // skip leading blanks
    while (*cur && TCh::IsWs(*cur)) { cur++; }
  }
  char *last = cur;
  while (*cur) {
    if (SsFmt == ssfWhiteSep) { while (*cur && ! TCh::IsWs(*cur)) { cur++; } } 
    else { while (*cur && *cur!=SplitCh) { cur++; } }
    if (*cur == 0) { break; }
    *cur = 0;  cur++;
    FldV.Add(last);  last = cur;
    if (SkipEmptyFld && strlen(FldV.Last())==0) { FldV.DelLast(); } // skip empty fields
  }
  FldV.Add(last);  // add last field
  if (SkipEmptyFld && FldV.Empty()) { return NextSlow(); } // skip empty lines
  return true; 
}

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const char* TSsParser::operator[] ( const int & FldN ) const [inline]

Returns the contents of the field at index FldN.

Definition at line 133 of file ss.h.

{ return FldV[FldN]; }

char* TSsParser::operator[] ( const int & FldN ) [inline]

Returns the contents of the field at index FldN.

Definition at line 135 of file ss.h.

{ return FldV[FldN]; }

void TSsParser::ToLc ( )

Transforms the current line to lower case.

Definition at line 436 of file ss.cpp.

References FldV, and TVec< TVal, TSizeTy >::Len().

Referenced by TSnap::LoadPajek().

                     {
  for (int f = 0; f < FldV.Len(); f++) {
    for (char *c = FldV[f]; *c; c++) {
      *c = tolower(*c); }
  }
}

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TSsParser::UndefDefaultCopyAssign ( TSsParser ) [private]

Friends And Related Function Documentation

friend class TPt< TSsParser > [friend]

Definition at line 72 of file ss.h.

Member Data Documentation

TCRef TSsParser::CRef [private]

Definition at line 72 of file ss.h.

PSIn TSsParser::FInPt [private]

Pointer to the input file stream.

Definition at line 82 of file ss.h.

Referenced by Next(), NextSlow(), and TSsParser().

TVec<char*> TSsParser::FldV [private]

Pointers to fields of the current line.

Definition at line 81 of file ss.h.

Referenced by DumpStr(), Next(), NextSlow(), and ToLc().

uint64 TSsParser::LineCnt [private]

Number of processed lines so far.

Definition at line 78 of file ss.h.

Referenced by Next(), and NextSlow().

TChA TSsParser::LineStr [private]

Current line.

Definition at line 80 of file ss.h.

Referenced by Next(), and NextSlow().

bool TSsParser::SkipCmt [private]

Skip comments (lines starting with #).

Definition at line 76 of file ss.h.

Referenced by Next(), and NextSlow().

bool TSsParser::SkipEmptyFld [private]

Skip empty fields (i.e., multiple consecutive separators are considered as one).

Definition at line 77 of file ss.h.

Referenced by Next(), and NextSlow().

bool TSsParser::SkipLeadBlanks [private]

Ignore leading whitespace characters in a line.

Definition at line 75 of file ss.h.

Referenced by Next(), and NextSlow().

char TSsParser::SplitCh [private]

Separator character (if one of the non-started separators is used)

Definition at line 79 of file ss.h.

Referenced by Next(), NextSlow(), and TSsParser().

TSsFmt TSsParser::SsFmt [private]

Separator type.

Definition at line 74 of file ss.h.

Referenced by Next(), NextSlow(), and TSsParser().

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

glib-core/ss.h
glib-core/ss.cpp

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation