FBasicMathExpressionEvaluator Class Reference

#include <BasicMathExpressionEvaluator.h>

Public Member Functions
CORE_API	FBasicMathExpressionEvaluator ()
CORE_API TValueOrError< double, FExpressionError >	Evaluate (const TCHAR *InExpression, double InExistingValue=0) const

Static Public Member Functions
static CORE_API void	DefineArithmeticTokens (FTokenDefinitions &TokenDefinitions)
static CORE_API void	DefineArithmeticOperators (FExpressionGrammar &TokenDefinitions)
static CORE_API void	MapArithmeticOperators (FOperatorJumpTable &JumpTable)

Detailed Description

A basic math expression evaluator

Constructor & Destructor Documentation

FBasicMathExpressionEvaluator()

FBasicMathExpressionEvaluator::FBasicMathExpressionEvaluator

(

)

Constructor that sets up the parser's lexer and compiler

Member Function Documentation

DefineArithmeticOperators()

void FBasicMathExpressionEvaluator::DefineArithmeticOperators ( FExpressionGrammar &  TokenDefinitions )

static

DefineArithmeticTokens()

void FBasicMathExpressionEvaluator::DefineArithmeticTokens ( FTokenDefinitions &  TokenDefinitions )

static

Utils that can be re-used as part of more complex evaluators

Note precedences are 3-5 for power/multiplicative/additive

Evaluate()

TValueOrError< double, FExpressionError > FBasicMathExpressionEvaluator::Evaluate	(	const TCHAR *	InExpression,
		double	InExistingValue = 0
	)		const

Evaluate the given expression, resulting in either a double value, or an error

MapArithmeticOperators()

void FBasicMathExpressionEvaluator::MapArithmeticOperators ( FOperatorJumpTable &  JumpTable )

static

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

• Engine/Source/Runtime/Core/Public/Math/BasicMathExpressionEvaluator.h
• Engine/Source/Runtime/Core/Private/Math/BasicMathExpressionEvaluator.cpp