neureka.math.parsing

Class ParseUtil

java.lang.Object

neureka.math.parsing.ParseUtil

public final class ParseUtil
extends java.lang.Object

Utility for parsing function expressions.

Method Summary

Modifier and Type	Method and Description
static java.lang.String	assumptionBasedOn(java.lang.String expression) This method tries to find the next best operation String the user might have meant.
static java.lang.String	cleanedHeadAndTail(java.lang.String exp)
static java.lang.String	findComponentIn(java.lang.String exp, int index)
static java.util.List<java.lang.String>	findParametersIn(java.lang.String exp, int index)
static java.lang.String	groupBy(java.lang.String operation, java.lang.String currentChain, java.lang.String currentComponent, java.lang.String currentOperation)
static boolean	isAnOperation(java.lang.String operationName)
static int	numberOfOperationsWithin(java.util.List<java.lang.String> operations)
static java.lang.String	parsedOperation(java.lang.String exp, int index)
static double	similarity(java.lang.String s1, java.lang.String s2) This method estimates the similarity between 2 provided String instances.
static java.lang.String	unpackAndCorrect(java.lang.String exp)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

numberOfOperationsWithin

public static int numberOfOperationsWithin(java.util.List<java.lang.String> operations)

parsedOperation

public static java.lang.String parsedOperation(java.lang.String exp,
                                               int index)

findComponentIn

public static java.lang.String findComponentIn(java.lang.String exp,
                                               int index)

findParametersIn

public static java.util.List<java.lang.String> findParametersIn(java.lang.String exp,
                                                                int index)

isAnOperation

public static boolean isAnOperation(java.lang.String operationName)

groupBy

public static java.lang.String groupBy(java.lang.String operation,
                                       java.lang.String currentChain,
                                       java.lang.String currentComponent,
                                       java.lang.String currentOperation)

cleanedHeadAndTail

public static java.lang.String cleanedHeadAndTail(java.lang.String exp)

unpackAndCorrect

public static java.lang.String unpackAndCorrect(java.lang.String exp)

assumptionBasedOn

public static java.lang.String assumptionBasedOn(java.lang.String expression)

This method tries to find the next best operation String the user might have meant.

Parameters:

expression - The expression which should be interpreted as something similar.

Returns:

Something similar or null if the expression is not similar enough.

similarity

public static double similarity(java.lang.String s1,
                                java.lang.String s2)

This method estimates the similarity between 2 provided String instances.

Parameters:

s1 - The first string which should be compared to the second string.

s2 - The second string which should be compared to the first string.

Returns:

A similarity score between 0 and 1 where 1 would be 100% similar (equal).