parseTools.h File Reference

input file and input stream parsing utils More...

#include <string>
#include <assert.h>
#include <sstream>
#include <vector>
#include <iostream>
#include <string.h>

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Functions
void	eatWS (char *str, unsigned int &stelle)
	jumps over next whitespaces series in the string 'str', starting at position 'stelle'. * The position is then set to the next first position with a non-whitespace char
std::string	eatWS (const std::string &str)
	'eats' leading whitespaces in the string str, and returns the result string
template<class _istream >
char	extractChar (char schar, _istream &sstream)
	extracts given char from a stream, throws an error, if failed
template<class _istream >
char	extractChar (_istream &sstream, char schar)
	extracts given char from a stream, throws an error, if failed
template<class _istream >
int	getSign (_istream &sstream)
	extracts a '-' or '+' from sstream if possible, and returns -1 if '-' , otherwise 1.
template<class _istream >
std::string	stripComment (_istream &data, bool &isComment)
	if leading stream entries is a Macaulay-comment sequence, the function strips all chars until next line starts .
template<class _istream >
void	stripComments (_istream &data)
	jumps over Macaulay-comments
template<class _istream >
std::string	readCurrentComment (_istream &data)
	try to read a comment from input stream. Comment starts with two
template<class _istream >
void	seekToBraceLevel (_istream &inputData, int &currentLevel, int braceLevel)
	seeks tho given braceLevel in the input stream if possible. Needs information about currentBraceLevel, which is also kept up to date
std::string	extractNextData (std::stringstream &Data)
	extracts data until ',' of '}' at current brace level occur. Comments (
std::string	extractNextBracedData (std::stringstream &Data)
	extracts data starting with '{' until of '}' at current brace level occurs.
template<class _istream >
std::string	readParamName (_istream &inputData)
	Reads Macaulay parameter name in current line. Assumption: the input stream points to first char of a parameter name (whitespaces are ignored). Parameter name ends with '='.
template<class _istream >
std::string	readParamValue (_istream &inputData, std::string name)
	Reads macaulay parameter value in current line. Assumption: the input stream points to first char of a parameter name (whitespaces are ignored). Parameter name ends with '='.
int	countSubGroups (std::stringstream &polynomStream)
	count subgroups in braces, example: count result for "{1,2,{..}}"-stream is 1. Assumes, that comments are already stripped. Inside string are currently not handled.
int	countGroups (std::stringstream &polynomStream)
	count groups in braces, example: count result for "{1,2,{..}},{...},{...},{...}"-stream is 4. Assumes, that comments are already stripped. Inside string are currently not handled.
int	countElements (std::stringstream &str)
	count elements in braces, example: count result for "{1,2,{4,5}}"-stream is 3. Assumes, that comments are already stripped. Inside string are currently not handled.
template<class RingType >
RingType::ElementType	parseNumber (RingType *ring1, std::string strNum, int _epsPrecision)
	reads scalar from string strNum with following format:
int	getMonomDegree (std::string monomGroup)
	monomgroup: monoms with dame degree, format (implicit) {coeffx^degy^0,coeffx^(deg-1)y^0}. in Reality{coeff,coeff,...}
int	getMaxMonomDegree (std::string polynomString)
std::string	ltrim (const std::string &str)
std::string	rtrim (const std::string &str)
std::string	trim (const std::string &str)
template<class _istream >
std::string	readStringValue (_istream &inputData, std::string paramName)

Detailed Description

Todo:: die Datei ist bestimmt noch voller Fehler... (fail-test, potenzielle Segfaults, string escaping, Kommentare in der Eingabedatei, etc.)

Definition in file parseTools.h.

Function Documentation

int countElements ( std::stringstream & str ) [inline]

Definition at line 863 of file parseTools.h.

Referenced by TVector< TRing >::createFromStream(), TMatrix< TRing >::createFromStream(), and createFromStream().

int countGroups ( std::stringstream & polynomStream ) [inline]

Definition at line 833 of file parseTools.h.

Referenced by TVector< TRing >::createFromStream().

int countSubGroups ( std::stringstream & polynomStream ) [inline]

Definition at line 803 of file parseTools.h.

Referenced by TMatrix< TRing >::createFromStream(), and createFromStream().

std::string eatWS ( const std::string & str ) [inline]

Definition at line 317 of file parseTools.h.

void eatWS	(	char *	str,
		unsigned int &	stelle
	)			`[inline]`

Definition at line 267 of file parseTools.h.

Referenced by Parameterlist::addDefaultParameter(), Parameterlist::addParameter(), nCenterFocus::isAllMarker(), nCenterFocus::isRandomMarker(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::updatePolynomsFromDifferentialForm(), xyOneForm< PolynomXYType >::xyOneForm(), and xyOneFormTerm< xyMonomType >::xyOneFormTerm().

template<class _istream >

char extractChar	(	_istream &	sstream,
		char	schar
	)			`[inline]`

Definition at line 376 of file parseTools.h.

References extractChar().

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template<class _istream >

char extractChar	(	char	schar,
		_istream &	sstream
	)			`[inline]`

Definition at line 333 of file parseTools.h.

Referenced by xyMonom< ccoeff >::createFromStream(), TVector< TRing >::createFromStream(), TMatrix< TRing >::createFromStream(), createFromStream(), extractChar(), extractNextBracedData(), nCenterFocus::extractStreamFromPQStream(), getMaxMonomDegree(), nCenterFocus::gotoLParamValue(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::initExperimentTag(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::loadParamList(), parseNumber(), rationalNumber::rationalNumber(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::readMonomGroup(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::readNextPolynoms(), nCenterFocus::readNextPQPolynomStream(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::updatePolynom(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::updatePolynomsFromDifferentialForm(), and xyOneFormTerm< xyMonomType >::xyOneFormTerm().

std::string extractNextBracedData ( std::stringstream & Data ) [inline]

Definition at line 582 of file parseTools.h.

References extractChar(), and stripComments().

Referenced by TVector< TRing >::createFromStream(), TMatrix< TRing >::createFromStream(), createFromStream(), nCenterFocus::extractStreamFromPQStream(), getMaxMonomDegree(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::updatePolynom().

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std::string extractNextData ( std::stringstream & Data ) [inline]

Kommentieren !

'--'

) are stripped

Definition at line 535 of file parseTools.h.

References stripComments().

Referenced by createFromStream(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::readMonomGroup().

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int getMaxMonomDegree ( std::string polynomString ) [inline]

Definition at line 228 of file parseTools.h.

References extractChar(), extractNextBracedData(), and getMonomDegree().

Referenced by createFromStream(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::updatePolynom().

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int getMonomDegree ( std::string monomGroup ) [inline]

Definition at line 217 of file parseTools.h.

Referenced by getMaxMonomDegree(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::updatePolynom().

template<class _istream >

int getSign ( _istream & sstream ) [inline]

Definition at line 383 of file parseTools.h.

Referenced by parseNumber().

std::string ltrim ( const std::string & str ) [inline]

Definition at line 276 of file parseTools.h.

Referenced by nCenterFocus::testTrim(), and trim().

template<class RingType >

RingType::ElementType parseNumber	(	RingType *	ring1,
		std::string	strNum,
		int	_epsPrecision
	)			`[inline]`

 <num>+<num>*e^1++<num>*e^2+...

and converts result before returning in a element of Ring ring1 with maximal possible epsPrecision<=_epsPrecision for template class RingType::ElementType

from kk only one thing is important: the convert-function.

Todo:: evtl. weitere Verbesserung: ein Element kann sich selbst aus einem String einlesen. Dabei ist aber zu beachten, dass hier eventuell epsPrecision eingeschraenkt werden soll (Parameter _epsPrecision) Eine weitere Moeglichkeit besteht darin, den Ring in dieser Funktion zu erzeugen.

Definition at line 141 of file parseTools.h.

References extractChar(), and getSign().

Referenced by createFromStream(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::readMonomGroup().

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template<class _istream >

std::string readCurrentComment ( _istream & data ) [inline]

'--'

. Whether comment reading was successful, return value contains the extracted comment string, otherwise the return value is empty.

Definition at line 498 of file parseTools.h.

References stripComment().

Referenced by nCenterFocus::gotoLParamValue(), nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::loadParamList(), and seekToBraceLevel().

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template<class _istream >

std::string readParamName ( _istream & inputData ) [inline]

extracts a parametername, from a input stream

Grammatic: <name>=<value> ; <comment>
 <comment>={}\n | {--commentText}}n

Todo:: : maybe using an free parser generator is an optimal and higly portable solution instead of writing unreadable, complex, errneous and unflexible hardcoded parser

todo : exclude further illegal chars - ',' etc.

Definition at line 623 of file parseTools.h.

Referenced by nCenterFocus::gotoLParamValue(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::loadParamList().

template<class _istream >

std::string readParamValue	(	_istream &	inputData,
		std::string	paramName
	)			`[inline]`

extracts a parameter value from a input stream

Grammatic:
%<name%>=%<value%> ; %<comment%> %<comment%>={}
| {--commentText}}n

Todo:: : maybe using an free parser generator is an optimal and higly portable solution instead of writing unreadable, complex, errneous and unflexible hardcoded parser

Definition at line 731 of file parseTools.h.

References readStringValue(), and stripComment().

Referenced by nCenterFocus::gotoLParamValue(), and nCenterFocus::CenterfocusParams< TPolynomXY, TRing >::loadParamList().

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