FFaMathString Namespace Reference

Functions
char *	CopyStr (const char *s, int i1=0, int i2=0)
	The string between to indices is returned. More...
char *	SimplifyStr (char *s)
	Outer bracket of the string is removed. More...
char *	SupprSpaces (char *s)
	All spaces in a string is removed. More...
char *	InsStr (const char *s, int n, char c)
	A character is inserted into string in a given position. More...
bool	EqStr (const char *s1, const char *s2)
	Equality of string one and two is checked. More...
bool	CompStr (const char *s, int n, const char *s2)
	Searchs a string for another string from given position. More...
bool	IsNumeric (const char *s)
	Checks if a string is a number. More...
int	SearchCorOpenbracket (const char *s, int n)
	Searchs a string, from a given position, for a corresponding bracket to '('. More...
int	SearchCorClosebracket (const char *s, int n)
	Searchs a string, from a given position, for a corresponding bracket to ')'. More...
int	SearchOperator (const char *s, FFaMathExpr::ROperator op)
	A string is searched for a given operator. More...
int	GetFunction (const char *s, int n, FFaMathExpr::ROperator &fn)
	Searchs a string for a function from a given position. More...
int	IsVar (const char *s, int n, int nvar, FFaMathVar **ppvar)
int	IsPi (const char *s, int n=0)
	Searchs a string for the constant "pi" from a given position. More...
int	IsFunction (const char *s, int n, int nfunc, FFaMathFunction **ppfunc)
	Searchs a string or a function f(*) for a function from a given position. More...
char *	IsolateVars (char *s, int nvar, FFaMathVar **ppvar)
	Variables in a string is isolated with brackets. More...
char *	IsolateNumbers (char *s, int nvar, FFaMathVar **ppvar, int nfunc, FFaMathFunction **ppfunc)
	Isolates numbers in a string or function f(*) with brackets. More...

Function Documentation

CompStr()

bool FFaMathString::CompStr	(	const char *	s,
		int	n,
		const char *	s2
	)

Searchs a string for another string from given position.

Parameters

s	String to search in
n	Position index
s2	String to be found

Returns

true if the string is found from the given position, otherwise false.

CopyStr()

char * FFaMathString::CopyStr	(	const char *	s,
		int	i1 = 0,
		int	i2 = 0
	)

The string between to indices is returned.

Parameters

s	String
i1	Start index
i2	Stopp index

Returns

The string between start index and stop index in a given string

If i1 and i2 are both zero, the whole string is copied.

EqStr()

bool FFaMathString::EqStr	(	const char *	s1,
		const char *	s2
	)

Equality of string one and two is checked.

Parameters

s1	First string
s2	Second string

Returns

true if the two strings are equal, otherwise false.

GetFunction()

int FFaMathString::GetFunction	(	const char *	s,
		int	n,
		FFaMathExpr::ROperator &	fn
	)

Searchs a string for a function from a given position.

Parameters

s	String
n	Position index
fn	The function found, or ErrOp if not found

Returns

The length of the function if it is found in given position. 0 if not found.

InsStr()

char * FFaMathString::InsStr	(	const char *	s,
		int	n,
		char	c
	)

A character is inserted into string in a given position.

Parameters

s	String
n	Position index
c	Character to be inserted

Returns

The new string with inserted character

IsFunction()

int FFaMathString::IsFunction	(	const char *	s,
		int	n,
		int	nfunc,
		FFaMathFunction **	ppfunc
	)

Searchs a string or a function f(*) for a function from a given position.

Parameters

s	String
n	Position index
nfunc	Function index
ppfunc	Function

Returns

The length of the function if it is found from the given position. 0 if not found.

IsNumeric()

bool FFaMathString::IsNumeric

(

const char *

s

)

Checks if a string is a number.

Parameters

s	string to be evaluated

Returns

true if the string is a number, otherwise false.

IsolateNumbers()

char * FFaMathString::IsolateNumbers	(	char *	s,
		int	nvar,
		FFaMathVar **	ppvar,
		int	nfunc,
		FFaMathFunction **	ppfunc
	)

Isolates numbers in a string or function f(*) with brackets.

Parameters

s	String
nvar	Variable index
ppvar	Variable
nfunc	Function index
ppfunc	Function

Returns

The string or a function with isolated numbers.

IsolateVars()

char * FFaMathString::IsolateVars	(	char *	s,
		int	nvar,
		FFaMathVar **	ppvar
	)

Variables in a string is isolated with brackets.

Parameters

s	String
nvar	Variable index
ppvar	Variable

Returns

The string with isolated variables

IsPi()

int FFaMathString::IsPi	(	const char *	s,
		int	n = 0
	)

Searchs a string for the constant "pi" from a given position.

Parameters

s	String
n	Position index

Returns

The length (2) of the "pi" if found in given position. 0 if not found.

IsVar()

int FFaMathString::IsVar	(	const char *	s,
		int	n,
		int	nvar,
		FFaMathVar **	ppvar
	)

SearchCorClosebracket()

int FFaMathString::SearchCorClosebracket	(	const char *	s,
		int	n
	)

Searchs a string, from a given position, for a corresponding bracket to ')'.

Parameters

s	String
n	Position index

Returns

The position to the corresponding bracket. -1 if not found.

SearchCorOpenbracket()

int FFaMathString::SearchCorOpenbracket	(	const char *	s,
		int	n
	)

Searchs a string, from a given position, for a corresponding bracket to '('.

Parameters

s	String
n	Position index

Returns

The position to the corresponding bracket. -1 if not found.

SearchOperator()

int FFaMathString::SearchOperator	(	const char *	s,
		FFaMathExpr::ROperator	op
	)

A string is searched for a given operator.

Parameters

s	String
op	Operator to be found

Returns

The position to the operator. -1 if not found.

SimplifyStr()

char * FFaMathString::SimplifyStr

(

char *

s

)

Outer bracket of the string is removed.

Parameters

s

String

Returns

The string without outer bracket.

SupprSpaces()

char * FFaMathString::SupprSpaces

(

char *

s

)

All spaces in a string is removed.

Parameters

s	String to be modified

Returns

The modified string without spaces.