rarStrParser Class Reference

String parser for RooRarFit. More...

#include <rarStrParser.hh>

List of all members.

Public Member Functions
	rarStrParser ()
	Trivial ctor.
	rarStrParser (const char *str)
	Ctor using char pointer.
	rarStrParser (const TString str)
	Ctor using TString object.
	rarStrParser (const rarStrParser &)
	Ctor for assignment using its own object.
virtual	~rarStrParser ()
void	operator= (const char *str)
	Operator = with char pointer.
void	operator= (const TString str)
	Operator = with TString object.
void	operator= (const RooStringVar str)
	Operator = with RooStringVar object.
TString &	operator[] (const Int_t idx)
	Get the indexed token.
void	Remove (const Int_t idx=0)
	Remove the indexed token.
Int_t	Index (const TString token)
	Get the index for a token.
Bool_t	Have (const TString token)
	Check if have the token.
Int_t	nArgs ()
	Return number of tokens.
Protected Member Functions
void	init ()
	Initial function to parse a string.
TObjString *	nextToken ()
	Get next token in the string from current position.
Protected Attributes
TString	_str
	String to parse.
TList	_strs
	List of parsed tokens.
Private Member Functions
	ClassDef (rarStrParser, 0)
Private Attributes
Int_t	_idx
	Current char index used for string parsing.

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Detailed Description

String parser for RooRarFit.

It is the string parser used widely by other RooRarFit classes to direct their actions through config items in config file. It breaks a string into tokens seperated by spaces. Characters inside quote(") are considered one token. Currently, quote (") can not be inside the parsed tokens.

Definition at line 27 of file rarStrParser.hh.

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Constructor & Destructor Documentation

rarStrParser::rarStrParser

(

)

Trivial ctor.

Definition at line 35 of file rarStrParser.cc.

References init().

  : _str("")
{
  init();
}

rarStrParser::rarStrParser

(

const char *

str

)

Ctor using char pointer.

Parameters:

str

String to parse

Definition at line 44 of file rarStrParser.cc.

References init().

  : _str(str)
{
  init();
}

rarStrParser::rarStrParser

(

const TString

str

)

Ctor using TString object.

Parameters:

str

String to parse

Definition at line 54 of file rarStrParser.cc.

References init().

  : _str(str)
{
  init();
}

rarStrParser::rarStrParser

(

const rarStrParser &

aParser

)

Ctor for assignment using its own object.

Parameters:

aParser

Source object

Definition at line 63 of file rarStrParser.cc.

References _str, and _strs.

  : TObject(aParser)
{
  _str=aParser._str;
  // go through tokens and copy them
  for (Int_t i=0; i<((rarStrParser&)aParser).nArgs(); i++)
    _strs.Add(new TObjString(((rarStrParser&)aParser)[i]));
}

rarStrParser::~rarStrParser

(

)

[virtual]

Definition at line 72 of file rarStrParser.cc.

References _strs.

{
  _strs.Delete();
}

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Member Function Documentation

rarStrParser::ClassDef	(	rarStrParser	,
		0
	)			[private]

Bool_t rarStrParser::Have

(

const TString

token

)

Check if have the token.

Parameters:

token

Token to check

Returns:

true if found, false if not

It checks if the parser has the token

Definition at line 130 of file rarStrParser.cc.

References Index().

Referenced by rarBasePdf::doPdfFit(), rarBasePdf::doPdfPlot(), rarMLFitter::doSPlot(), rarMLFitter::getSnB(), rarConfig::getVarTNTU(), rarDatasets::isBlind(), rarBasePdf::isFracName(), rarBasePdf::matchCatType(), and rarMLFitter::run().

                                             {
  return (Index(token)<0) ? kFALSE : kTRUE;
}

Int_t rarStrParser::Index

(

const TString

token

)

Get the index for a token.

Parameters:

token

Token to check

Returns:

the index of the give token, -1 if not found

It returns index for a given token, -1 if not found.

Definition at line 139 of file rarStrParser.cc.

References nArgs().

Referenced by rarMLFitter::doContourPlot(), rarMLFitter::doSPlot(), rarConfig::getVarTNTU(), Have(), and rarMLPdf::init().

                                             {
  Int_t index(-1);
  for (Int_t i=0; i<nArgs(); i++)
    if (token==operator[](i)) return i;
  return index;
}

void rarStrParser::init

(

)

[protected]

Initial function to parse a string.

It initializes _idx and _strs and calls nextToken to parse the string

Definition at line 150 of file rarStrParser.cc.

References _idx, _strs, and nextToken().

Referenced by operator=(), and rarStrParser().

{
  // reset index and parsed string objs
  _idx=0;
  _strs.Delete();
  TObjString *objStr(0);
  while (objStr=nextToken()) {
    _strs.Add(objStr);
  }
}

Int_t rarStrParser::nArgs

(

)

[inline]

Return number of tokens.

Returns:

Number of tokens stored

Definition at line 45 of file rarStrParser.hh.

References _strs.

Referenced by rarMLFitter::avgSysErrors(), rarConfig::createAbsVar(), rarConfig::createAbsVars(), rarConfig::createDataSet(), rarConfig::createPdf(), rarBasePdf::createPdfs(), rarMLFitter::doCombinePlot(), rarMLFitter::doLLRPlot(), rarBasePdf::doPdfFit(), rarBasePdf::doPdfPlot(), rarMLFitter::doProjPlot(), rarMLFitter::doScanPlot(), rarMLFitter::doSignf(), rarMLFitter::doSPlot(), rarMLFitter::doSysStudy(), rarMLFitter::doToyStudy(), rarMLFitter::generate(), rarBasePdf::getArgSet(), rarBasePdf::getControlBit(), rarMLFitter::getCorrMatrix(), rarDatasets::getData(), rarDatasetDef::getFormulaArgs(), rarBasePdf::getFormulaArgs(), rarMLFitter::getParamFileName(), rarBasePdf::getRange(), rarMLFitter::getSnB(), rarMLFitter::getSplitCat(), rarMLFitter::getSplitCatSet(), rarConfig::getVarTNTU(), Index(), rarStep::init(), rarProd::init(), rarMLPdf::init(), rarMLFitter::init(), rarDecay::init(), rarDatasets::init(), rarBinned::init(), rarDatasets::isBlind(), rarBasePdf::matchCatType(), rarMLFitter::run(), and rarBasePdf::setControlBits().

{return _strs.GetSize();}

TObjString * rarStrParser::nextToken

(

)

[protected]

Get next token in the string from current position.

Todo:

Make quote (") regular character with `\"'.

This is the actual parser. It ignores any blank characters at current position and return the sub-string until next blank character as the token. If current non-blank character is quote ("), it will take all characters after that until the next quote (") as token and return it. It return 0 (null) if current position, _idx, is out of range.

Definition at line 172 of file rarStrParser.cc.

References _idx, and _str.

Referenced by init().

{
  Int_t nIdx(0);
  if (_idx>=_str.Length()) return 0;
  while (' '==_str[_idx] || '\t'==_str[_idx] || '\n'==_str[_idx]) {
    _idx++;
    if (_idx>=_str.Length()) return 0;
  }
  if ('"'==_str[_idx]) {
    _idx++;
    nIdx=_str.Index("\"", _idx);
    if(nIdx<0) return 0;
  } else {
    nIdx=_str.Index(" ", _idx);
    if(nIdx<0) nIdx=_str.Length();
  }
  //cout<<"in Parser "<<nIdx<<" "<<_idx<<" "<<_str(_idx, nIdx-_idx)<<endl;
  TString substr=_str(_idx, nIdx-_idx);
  TObjString *subStr=new TObjString(substr);
  _idx=nIdx;
  if (_idx<_str.Length())
    if ('"'==_str[_idx]) _idx++;
  
  return subStr;
}

void rarStrParser::operator=

(

const RooStringVar

str

)

Operator = with RooStringVar object.

Parameters:

str

String to parse

Definition at line 97 of file rarStrParser.cc.

References operator=().

{
  rarStrParser::operator=(str.getVal());
}

void rarStrParser::operator=

(

const TString

str

)

Operator = with TString object.

Parameters:

str

String to parse

Definition at line 89 of file rarStrParser.cc.

References operator=().

{
  rarStrParser::operator=(str.Data());
}

void rarStrParser::operator=

(

const char *

str

)

Operator = with char pointer.

Parameters:

str

String to parse

Definition at line 80 of file rarStrParser.cc.

References _str, and init().

Referenced by operator=().

{
  _str=str;
  init();
}

TString & rarStrParser::operator[]

(

const Int_t

idx

)

Get the indexed token.

Parameters:

idx

Token index in _strs

Returns:

The indexed token

Definition at line 106 of file rarStrParser.cc.

References _str, and _strs.

{
  TObjString *retVal=(TObjString*)_strs.At(idx);
  if (retVal) return retVal->String();
  return _str;
}

void rarStrParser::Remove

(

const Int_t

idx = 0

)

Remove the indexed token.

Parameters:

idx

The index of token to be removed

Definition at line 116 of file rarStrParser.cc.

References _strs.

Referenced by rarConfig::createAbsVar(), rarConfig::createAbsVars(), rarConfig::createDataSet(), rarConfig::createPdf(), rarMLFitter::doContourPlot(), rarMLFitter::doLLRPlot(), rarBasePdf::doPdfFit(), rarBasePdf::doPdfPlot(), rarMLFitter::doProjPlot(), rarMLFitter::doScanPlot(), rarMLFitter::doSignf(), rarMLFitter::doSPlot(), rarMLFitter::doSysStudy(), rarMLFitter::doToyStudy(), rarMLFitter::generate(), rarBasePdf::getFormulaVal(), rarMLFitter::getParamFileName(), rarBasePdf::getRange(), rarMLFitter::getSplitCat(), rarConfig::getVarTNTU(), rarMLFitter::init(), rarGeneric::init(), rarBasePdf::init(), rarDatasets::isBlind(), and rarMLFitter::run().

{
  TObject *val=_strs.At(idx);
  if (val) {
    _strs.Remove(val);
    delete val;
  }
}

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Member Data Documentation

Int_t rarStrParser::_idx [private]

Current char index used for string parsing.

Definition at line 55 of file rarStrParser.hh.

Referenced by init(), and nextToken().

TString rarStrParser::_str [protected]

String to parse.

Definition at line 51 of file rarStrParser.hh.

Referenced by nextToken(), operator=(), operator[](), and rarStrParser().

TList rarStrParser::_strs [protected]

List of parsed tokens.

Definition at line 52 of file rarStrParser.hh.

Referenced by init(), nArgs(), operator[](), rarStrParser(), Remove(), and ~rarStrParser().

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

• rarStrParser.hh
• rarStrParser.cc

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