Vuo: VuoMathExpressionParserInternal Class Reference

Vuo 2.3.2

Description

C++ implementation of opaque C type VuoMathExpressionParser.

Definition at line 272 of file VuoMathExpressionParser.cc.

Public Member Functions
	VuoMathExpressionParserInternal (const string &expression, const vector< string > &outputVariableNames_=vector< string >())
	Parses the mathematical expression(s) (e.g. More...

Static Public Member Functions
static double *	addVariable (const char variable, void userData)
	Callback needed by mu::Parser to parse each variable. More...

static string	getExpressionSeparator (void)
	Returns the token that separates expressions when multiple of them appear in a string (e.g. More...

Public Attributes
mu::Parser	muParser
	Does most of the actual parsing work. More...

size_t	variableCount
	Number of variables parsed. More...

double	variableValues [MAX_VARIABLE_COUNT]
	Storage for variables parsed, used to hold values for calculations. More...

map< string, size_t >	variableNamesAndIndices
	A mapping of variable names to indices in `variableValues`. More...

vector< string >	inputVariableNames
	The unique input variable names parsed, in alphabetical order. More...

vector< string >	outputVariableNames
	The output variable name for each expression parsed, in the order the expressions were given. More...

Constructor & Destructor Documentation

◆ VuoMathExpressionParserInternal()

VuoMathExpressionParserInternal::VuoMathExpressionParserInternal	(	const string &	expression,
		const vector< string > &	outputVariableNames_ = `vector<string>()`
	)

inline

Parses the mathematical expression(s) (e.g.

"a + b" or "y = x + 1" or "sum=n1+n2,product=n1*n2").

If outputVariableNames_ is given, assigns unique output variable names for any empty elements.

Exceptions

mu::ParserError expression contains a syntax error.

Definition at line 306 of file VuoMathExpressionParser.cc.

Member Function Documentation

◆ addVariable()

static double* VuoMathExpressionParserInternal::addVariable	(	const char *	variable,
		void *	userData
	)

inlinestatic

Callback needed by mu::Parser to parse each variable.

Definition at line 285 of file VuoMathExpressionParser.cc.

◆ getExpressionSeparator()

static string VuoMathExpressionParserInternal::getExpressionSeparator ( void )

inlinestatic

Returns the token that separates expressions when multiple of them appear in a string (e.g.

",").

Definition at line 355 of file VuoMathExpressionParser.cc.

Member Data Documentation

◆ inputVariableNames

vector<string> VuoMathExpressionParserInternal::inputVariableNames

The unique input variable names parsed, in alphabetical order.

Definition at line 279 of file VuoMathExpressionParser.cc.

◆ muParser

mu::Parser VuoMathExpressionParserInternal::muParser

Does most of the actual parsing work.

Definition at line 275 of file VuoMathExpressionParser.cc.

◆ outputVariableNames

vector<string> VuoMathExpressionParserInternal::outputVariableNames

The output variable name for each expression parsed, in the order the expressions were given.

Definition at line 280 of file VuoMathExpressionParser.cc.

◆ variableCount

size_t VuoMathExpressionParserInternal::variableCount

Number of variables parsed.

Definition at line 276 of file VuoMathExpressionParser.cc.

◆ variableNamesAndIndices

map<string, size_t> VuoMathExpressionParserInternal::variableNamesAndIndices

A mapping of variable names to indices in variableValues.

Definition at line 278 of file VuoMathExpressionParser.cc.

◆ variableValues

double VuoMathExpressionParserInternal::variableValues[MAX_VARIABLE_COUNT]

Storage for variables parsed, used to hold values for calculations.

Definition at line 277 of file VuoMathExpressionParser.cc.

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

library/VuoMathExpressionParser.cc