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mXparser is a super easy, rich, fast and highly flexible math expression parser library (parser and evaluator of mathematical expressions / formulas provided as plain text / string). Software delivers easy to use API for JAVA, Android and C# .NET/MONO (Common Language Specification compliant: F#, Visual Basic, C++/CLI). *** If you find the software useful donation is something you might consider: https://mathparser.org/donate/ *** Scalar Scientific Calculator, Charts and Scripts, Scalar Lite: https://play.google.com/store/apps/details?id=org.mathparser.scalar.lite *** Scalar Pro: https://play.google.com/store/apps/details?id=org.mathparser.scalar.pro *** ScalarMath.org: https://scalarmath.org/ *** MathSpace.pl: https://mathspace.pl/ ***
/*
* @(#)mXparser.java 4.4.3 2022-05-28
*
* MathParser.org-mXparser DUAL LICENSE AGREEMENT as of date 2022-05-22
* The most up-to-date license is available at the below link:
* - https://mathparser.org/mxparser-license
*
* AUTHOR: Copyright 2010 - 2022 Mariusz Gromada - All rights reserved
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*
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* PRODUCT: MathParser.org-mXparser SOFTWARE
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package org.mariuszgromada.math.mxparser;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
import java.util.regex.Pattern;
import org.mariuszgromada.math.mxparser.mathcollection.BinaryRelations;
import org.mariuszgromada.math.mxparser.mathcollection.NumberTheory;
import org.mariuszgromada.math.mxparser.mathcollection.PrimesCache;
import org.mariuszgromada.math.mxparser.mathcollection.ProbabilityDistributions;
import org.mariuszgromada.math.mxparser.parsertokens.BinaryRelation;
import org.mariuszgromada.math.mxparser.parsertokens.BitwiseOperator;
import org.mariuszgromada.math.mxparser.parsertokens.BooleanOperator;
import org.mariuszgromada.math.mxparser.parsertokens.CalculusOperator;
import org.mariuszgromada.math.mxparser.parsertokens.ConstantValue;
import org.mariuszgromada.math.mxparser.parsertokens.Function1Arg;
import org.mariuszgromada.math.mxparser.parsertokens.Function2Arg;
import org.mariuszgromada.math.mxparser.parsertokens.Function3Arg;
import org.mariuszgromada.math.mxparser.parsertokens.FunctionVariadic;
import org.mariuszgromada.math.mxparser.parsertokens.KeyWord;
import org.mariuszgromada.math.mxparser.parsertokens.Operator;
import org.mariuszgromada.math.mxparser.parsertokens.ParserSymbol;
import org.mariuszgromada.math.mxparser.parsertokens.RandomVariable;
import org.mariuszgromada.math.mxparser.parsertokens.Token;
import org.mariuszgromada.math.mxparser.parsertokens.Unit;
/**
* mXparser class provides usefull methods when parsing, calculating or
* parameters transforming.
*
* @author Mariusz Gromada
* [email protected]
* MathSpace.pl
* MathParser.org - mXparser project page
* mXparser on GitHub
* mXparser on SourceForge
* mXparser on Bitbucket
* mXparser on CodePlex
* Janet Sudoku - project web page
* Janet Sudoku on GitHub
* Janet Sudoku on CodePlex
* Janet Sudoku on SourceForge
* Janet Sudoku on BitBucket
* Scalar Free
* Scalar Pro
* ScalarMath.org
*
* @version 4.4.2
*
* @see RecursiveArgument
* @see Expression
* @see Function
* @see Constant
*/
public final class mXparser {
/**
* mXparser version
*/
public static final String VERSION = "4.4.3";
public static final String VERSION_CODE_NAME = "Gemoni";
public static final String VERSION_NAME = VERSION + " " + VERSION_CODE_NAME;
/**
* Framework used to compile mXparser
*/
public static final String BUIT_FOR = "JDK 8";
/**
* FOUND / NOT_FOUND
* used for matching purposes
*/
static final int NOT_FOUND = -1;
static final int FOUND = 0;
/**
* Console output string for below methods
*
* @see mXparser.#consolePrintln(Object)
* @see mXparser.#consolePrint(Object)
*/
private static volatile String CONSOLE_OUTPUT = "";
private static volatile String CONSOLE_PREFIX = "[mXparser-v." + VERSION + " bin " + BUIT_FOR + "] ";
private static volatile String CONSOLE_OUTPUT_PREFIX = CONSOLE_PREFIX;
private static volatile int CONSOLE_ROW_NUMBER = 1;
/**
* Prime numbers cache
*/
public volatile static PrimesCache primesCache;
public static final int PRIMES_CACHE_NOT_INITIALIZED = -1;
/**
* Threads number settings
*/
private static int THREADS_NUMBER = Runtime.getRuntime().availableProcessors();
/**
* Empty expression for general help purposes.
*/
static volatile Expression mXparserExp = new Expression();
/**
* Double floating-point precision arithmetic causes
*
* mXparser provides intelligent ULP rounding to avoid some
* type of this errors.
*/
static volatile boolean ulpRounding = false;
/**
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is different than 0.3
*
* mXparser provides intelligent canonical rounding to avoid majority
* of this errors.
*
*/
static volatile boolean canonicalRounding = true;
/**
* Indicator marking whether to round final result
* to precise integer when result is very close
* to integer, solves problems like
* sin(pi) = 0
*/
static volatile boolean almostIntRounding = true;
static final int DEFAULT_MAX_RECURSION_CALLS = 200;
/**
* Internal limit for counter to avoid infinite loops while calculating
* expression defined in the way shown by below examples
*
* Argument x = new Argument("x = 2*y");
* Argument y = new Argument("y = 2*x");
* x.addDefinitions(y);
* y.addDefinitions(x);
*
* Function f = new Function("f(x) = 2*g(x)");
* Function g = new Function("g(x) = 2*f(x)");
* f.addDefinitions(g);
* g.addDefinitions(f);
*/
static volatile int MAX_RECURSION_CALLS = DEFAULT_MAX_RECURSION_CALLS;
/**
* List of built-in tokens to remove.
*/
static volatile List tokensToRemove = new ArrayList();
/**
* List of built-in tokens to modify
*/
static volatile List tokensToModify = new ArrayList();
/**
* Indicator whether mXparser operates in radians / degrees mode
* true - degrees mode
* false - radians mode
*
* Default false (radians mode)
*/
static volatile boolean degreesMode = false;
/**
* Indicator whether user defined tokens should override
* built-in tokens.
*/
static volatile boolean overrideBuiltinTokens = false;
/**
* Options changeset
*/
static volatile int optionsChangesetNumber = 0;
/**
* Indicator whether to call cancel current calculation
*/
private static volatile boolean cancelCurrentCalculationFlag = false;
/**
* Initialization of prime numbers cache.
* Cache size according to {@link PrimesCache#DEFAULT_MAX_NUM_IN_CACHE}
* @see PrimesCache
*/
public static final void initPrimesCache() {
primesCache = new PrimesCache();
}
/**
* Initialization of prime numbers cache.
* @param mximumNumberInCache The maximum integer number that
* will be stored in cache.
* @see PrimesCache
*/
public static final void initPrimesCache(int mximumNumberInCache) {
primesCache = new PrimesCache(mximumNumberInCache);
}
/**
* Initialization of prime numbers cache.
* @param primesCache The primes cache object
* @see PrimesCache
*/
public static final void initPrimesCache(PrimesCache primesCache) {
mXparser.primesCache = primesCache;
}
/**
* Returns true in case when primes cache initialization was successful,
* otherwise returns false.
*
* @return Returns true in case when primes cache initialization was successful,
* otherwise returns false.
*/
public static final boolean isInitPrimesCacheSuccessful() {
if (primesCache == null) return false;
synchronized (primesCache) {
return primesCache.isInitSuccessful();
}
}
/**
* Sets {@link mXparser#primesCache} to null
*/
public static void setNoPrimesCache() {
primesCache = null;
}
/**
* Returns maximum integer number in primes cache
* @return If primes cache was initialized then maximum number in
* primes cache, otherwise {@link mXparser#PRIMES_CACHE_NOT_INITIALIZED}
*/
public static final int getMaxNumInPrimesCache() {
if ( primesCache != null ) {
synchronized (primesCache) {
return primesCache.getMaxNumInCache();
}
} else
return PRIMES_CACHE_NOT_INITIALIZED;
}
/**
* Gets maximum threads number
*
* @return Threads number.
*/
public static final int getThreadsNumber() {
return THREADS_NUMBER;
}
/**
* Sets default threads number
*/
public static final void setDefaultThreadsNumber() {
THREADS_NUMBER = Runtime.getRuntime().availableProcessors();
}
/**
* Sets threads number
*
* @param threadsNumber Thread number.
*/
public static final void setThreadsNumber(int threadsNumber) {
if (threadsNumber > 0) THREADS_NUMBER = threadsNumber;
}
/**
* Calculates function f(x0) (given as expression) assigning Argument x = x0;
*
*
* @param f the expression
* @param x the argument
* @param x0 the argument value
*
* @return f.calculate()
*
* @see Expression
*/
public static final double getFunctionValue(Expression f, Argument x, double x0) {
x.setArgumentValue(x0);
return f.calculate();
}
/**
* Converts List of double to double[]
*
* @param numbers the numbers list
*
* @return numbers array
*/
public static final double[] arrayList2double(List numbers) {
if (numbers == null)
return null;
int size = numbers.size();
double[] newNumbers = new double[size];
for (int i = 0; i < size; i++)
newNumbers[i] = numbers.get(i).doubleValue();
return newNumbers;
}
/**
* Returns array of double values of the function f(i)
* calculated on the range: i = from to i = to by step = delta
*
* @param f Function expression
* @param index Index argument
* @param from 'from' value
* @param to 'to' value
* @param delta 'delta' step definition
* @return Array of function values
*/
public static final double[] getFunctionValues(Expression f, Argument index, double from, double to, double delta) {
if ( (Double.isNaN(delta) ) || (Double.isNaN(from) ) || (Double.isNaN(to) ) || (delta == 0) )
return null;
int n = 0;
double[] values;
if ( (to >= from) && (delta > 0) ) {
for (double i = from; i < to; i+=delta)
n++;
n++;
values = new double[n];
int j = 0;
for (double i = from; i < to; i+=delta) {
values[j] = getFunctionValue(f, index, i);
j++;
}
values[j] = getFunctionValue(f, index, to);
} else if ( (to <= from) && (delta < 0) ) {
for (double i = from; i > to; i+=delta)
n++;
n++;
values = new double[n];
int j = 0;
for (double i = from; i > to; i+=delta) {
values[j] = getFunctionValue(f, index, i);
j++;
}
values[j] = getFunctionValue(f, index, to);
} else if (from == to) {
n = 1;
values = new double[n];
values[0] = getFunctionValue(f, index, from);
} else values = null;
return values;
}
/**
* Modifies random generator used by the ProbabilityDistributions class.
*
* @param randomGenerator Random generator.
* @see ProbabilityDistributions
* @see ProbabilityDistributions#randomGenerator
*/
public static final void setRandomGenerator(Random randomGenerator) {
if (randomGenerator != null) ProbabilityDistributions.randomGenerator = randomGenerator;
}
/**
* Sets comparison mode to EXACT.
* @see BinaryRelations
*/
public static final void setExactComparison() {
BinaryRelations.setExactComparison();
}
/**
* Sets comparison mode to EPSILON.
* @see BinaryRelations
*/
public static final void setEpsilonComparison() {
BinaryRelations.setEpsilonComparison();
}
/**
* Sets epsilon value.
* @param epsilon Epsilon value (grater than 0).
*
* @see #setEpsilonComparison()
* @see BinaryRelations
*/
public static final void setEpsilon(double epsilon) {
BinaryRelations.setEpsilon(epsilon);
}
/**
* Sets default epsilon value.
*
* @see #setEpsilonComparison()
* @see BinaryRelations#DEFAULT_COMPARISON_EPSILON
* @see BinaryRelations
*/
public static final void setDefaultEpsilon() {
BinaryRelations.setDefaultEpsilon();
}
/**
* Returns current epsilon value.
* @return Returns current epsilon value.
*
* @see #setEpsilonComparison()
* @see BinaryRelations
*/
public static final double getEpsilon() {
return BinaryRelations.getEpsilon();
}
/**
* Checks if epsilon comparison mode is active;
* @return True if epsilon mode is active, otherwise returns false.
* @see #setEpsilonComparison()
* @see #setExactComparison()
* @see BinaryRelations
*/
public static final boolean checkIfEpsilonMode() {
return BinaryRelations.checkIfEpsilonMode();
}
/**
* Checks if exact comparison mode is active;
* @return True if exact mode is active, otherwise returns false.
* @see #setEpsilonComparison()
* @see #setExactComparison()
* @see BinaryRelations
*/
public static final boolean checkIfExactMode() {
return BinaryRelations.checkIfExactMode();
}
/**
* Enables ULP rounding.
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent ULP rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Using this mode 0.1 + 0.1 + 0.1 = 0.3
*/
public static final void enableUlpRounding() {
ulpRounding = true;
}
/**
* Disables ULP rounding.
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent ULP rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Disabling this mode 0.1 + 0.1 + 0.1 will be slightly different than 0.3.
*/
public static final void disableUlpRounding() {
ulpRounding = false;
}
/**
* Enables / disables ULP rounding.
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent ULP rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Disabling this mode 0.1 + 0.1 + 0.1 will be slightly different than 0.3.
*
* @param ulpRoundingState True to enable, false to disable
*/
public static final void setUlpRounding(boolean ulpRoundingState) {
ulpRounding = ulpRoundingState;
}
/**
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent ULP rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Using this mode 0.1 + 0.1 + 0.1 = 0.3
*
* @return True if ULP rounding is enabled, otherwise false.
*/
public static final boolean checkIfUlpRounding() {
return ulpRounding;
}
/**
* Enables canonical rounding.
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent canonical rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Using this mode 2.5 - 2.2 = 0.3
*/
public static final void enableCanonicalRounding() {
canonicalRounding = true;
}
/**
* Disables canonical rounding.
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent canonical rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Using this mode 2.5 - 2.2 = 0.3
*/
public static final void disableCanonicalRounding() {
canonicalRounding = false;
}
/**
* Enables / disables canonical rounding.
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent ULP rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Disabling this mode 0.1 + 0.1 + 0.1 will be slightly different than 0.3.
*
* @param canonicalRoundingState True to enable, false to disable
*/
public static final void setCanonicalRounding(boolean canonicalRoundingState) {
canonicalRounding = canonicalRoundingState;
}
/**
* Double floating-point precision arithmetic causes
* rounding problems, i.e. 0.1 + 0.1 + 0.1 is slightly different than 0.3,
* additionally doubles are having a lot of advantages
* providing flexible number representation regardless of
* number size. mXparser is fully based on double numbers
* and that is why is providing intelligent canonical rounding
* to minimize misleading results. By default this option is
* enabled resulting in automatic rounding only in some cases.
* Using this mode 2.5 - 2.2 = 0.3
*
* @return True if Canonical rounding is enabled, otherwise false.
*/
public static final boolean checkIfCanonicalRounding() {
return canonicalRounding;
}
/**
* Enables almost integer rounding option causing
* rounding final calculation result to precise integer
* if and only if result is very close to integer.
* Very close condition depends on epsilon.
*
* @see mXparser#setEpsilon(double)
* @see mXparser#getEpsilon()
* @see Expression#calculate()
*/
public static final void enableAlmostIntRounding() {
almostIntRounding = true;
}
/**
* Disables almost integer rounding option causing
* rounding final calculation result to precise integer
* if and only if result is very close to integer.
* Very close condition depends on epsilon.
*
* @see mXparser#setEpsilon(double)
* @see mXparser#getEpsilon()
* @see Expression#calculate()
*/
public static final void disableAlmostIntRounding() {
almostIntRounding = false;
}
/**
* Enables / disables almost integer rounding option causing
* rounding final calculation result to precise integer
* if and only if result is very close to integer.
* Very close condition depends on epsilon.
*
* @param almostIntRoundingState True to enable, false to disable
*/
public static final void setAlmostIntRounding(boolean almostIntRoundingState) {
almostIntRounding = almostIntRoundingState;
}
/**
* Returns state of almost integer rounding option causing
* rounding final calculation result to precise integer
* if and only if result is very close to integer.
* Very close condition depends on epsilon.
*
* @return true if option enabled, false otherwise
*
* @see mXparser#setEpsilon(double)
* @see mXparser#getEpsilon()
* @see Expression#calculate()
*/
public static final boolean checkIfAlmostIntRounding() {
return almostIntRounding;
}
/**
* Internal limit to avoid infinite loops while calculating
* expression defined in the way shown by below examples.
*
* Argument x = new Argument("x = 2*y");
* Argument y = new Argument("y = 2*x");
* x.addDefinitions(y);
* y.addDefinitions(x);
*
* Function f = new Function("f(x) = 2*g(x)");
* Function g = new Function("g(x) = 2*f(x)");
* f.addDefinitions(g);
* g.addDefinitions(f);
*
* Currently does not affect properly defined recursive mode.
*
* @param maxAllowedRecursionDepth Maximum number of allowed recursion calls
*/
public static final void setMaxAllowedRecursionDepth(int maxAllowedRecursionDepth) {
MAX_RECURSION_CALLS = maxAllowedRecursionDepth;
}
/**
* Internal limit to avoid infinite loops while calculating
* expression defined in the way shown by below examples.
*
* Argument x = new Argument("x = 2*y");
* Argument y = new Argument("y = 2*x");
* x.addDefinitions(y);
* y.addDefinitions(x);
*
* Function f = new Function("f(x) = 2*g(x)");
* Function g = new Function("g(x) = 2*f(x)");
* f.addDefinitions(g);
* g.addDefinitions(f);
*
* Currently does not affect properly defined recursive mode.
*
* @return Max allowed recursion calls
*/
public static final int getMaxAllowedRecursionDepth() {
return MAX_RECURSION_CALLS;
}
/**
* Set mXparser to operate in radians mode for
* trigonometric functions
*/
public static final void setRadiansMode() {
degreesMode = false;
}
/**
* Set mXparser to operate in degrees mode for
* trigonometric functions
*/
public static final void setDegreesMode() {
degreesMode = true;
}
/**
* Checks whether mXparser operates in radians mode for
* trigonometric functions.
*
* @return true - if radians mode, false - otherwise
*/
public static final boolean checkIfRadiansMode() {
return !degreesMode;
}
/**
* Checks whether mXparser operates in degrees mode for
* trigonometric functions.
*
* @return true - if degrees mode, false - otherwise
*/
public static final boolean checkIfDegreesMode() {
return degreesMode;
}
/**
* Sets initial search size for the toFraction method
*
* @param n initial search size, has to be non-zero positive.
* @see NumberTheory#toFraction(double)
*/
public static final void setToFractionInitSearchSize(long n) {
NumberTheory.setToFractionInitSearchSize(n);
}
/**
* Gets initial search size used by the toFraction method
*
* @return initial search size used by the toFraction method
* @see NumberTheory#toFraction(double)
*/
public static final long getToFractionInitSearchSize() {
return NumberTheory.getToFractionInitSearchSize();
}
/**
* Removes built-in tokens form the list of tokens recognized by the parsers.
* Procedure affects only tokens classified to built-in functions, built-in
* constants, built-in units, built-in random variables.
*
* @param tokens List of tokens to remove.
*/
public static final void removeBuiltinTokens(String... tokens) {
if (tokens == null) return;
synchronized (tokensToRemove) {
for (String token : tokens)
if (token != null)
if (token.length() > 0)
if (!tokensToRemove.contains(token))
tokensToRemove.add(token);
optionsChangesetNumber++;
}
}
/**
* Un-marks tokens previously marked to be removed.
* @param tokens List of tokens to un-mark.
*/
public static final void unremoveBuiltinTokens(String... tokens) {
if (tokens == null) return;
if (tokens.length == 0) return;
if (tokensToRemove.size() == 0) return;
synchronized (tokensToRemove) {
for (String token : tokens)
if (token != null)
tokensToRemove.remove(token);
optionsChangesetNumber++;
}
}
/**
* Un-marks all tokens previously marked to be removed.
*/
public static final void unremoveAllBuiltinTokens() {
synchronized (tokensToRemove) {
tokensToRemove.clear();
optionsChangesetNumber++;
}
}
/**
* Returns current list of tokens marked to be removed.
* @return Current list of tokens marked to be removed
*/
public static final String[] getBuiltinTokensToRemove() {
synchronized (tokensToRemove) {
int tokensNum = tokensToRemove.size();
String[] tokensToRemoveArray = new String[tokensNum];
for (int i = 0; i < tokensNum; i++)
tokensToRemoveArray[i] = tokensToRemove.get(i);
return tokensToRemoveArray;
}
}
/**
* Method to change definition of built-in token - more precisely
* using this method allows to modify token string recognized by the parser
* (i.e. sin(x) to sinus(x)).
* Procedure affects only tokens classified to built-in functions, built-in
* constants, built-in units, built-in random variables.
* @param currentToken Current token name
* @param newToken New token name
*/
public static final void modifyBuiltinToken(String currentToken, String newToken) {
if (currentToken == null) return;
if (currentToken.length() == 0) return;
if (newToken == null) return;
if (newToken.length() == 0) return;
synchronized (tokensToModify) {
for (TokenModification tm : tokensToModify)
if (tm.currentToken.equals(currentToken)) return;
TokenModification tma = new TokenModification();
tma.currentToken = currentToken;
tma.newToken = newToken;
tma.newTokenDescription = null;
tokensToModify.add(tma);
optionsChangesetNumber++;
}
}
/**
* Method to change definition of built-in token - more precisely
* using this method allows to modify token string recognized by the parser
* (i.e. sin(x) to sinus(x)).
* Procedure affects only tokens classified to built-in functions, built-in
* constants, built-in units, built-in random variables.
* @param currentToken Current token name
* @param newToken New token name
* @param newTokenDescription New token description (if null the previous one will be used)
*/
public static final void modifyBuiltinToken(String currentToken, String newToken, String newTokenDescription) {
if (currentToken == null) return;
if (currentToken.length() == 0) return;
if (newToken == null) return;
if (newToken.length() == 0) return;
synchronized (tokensToModify) {
for (TokenModification tm : tokensToModify)
if (tm.currentToken.equals(currentToken)) return;
TokenModification tma = new TokenModification();
tma.currentToken = currentToken;
tma.newToken = newToken;
tma.newTokenDescription = newTokenDescription;
tokensToModify.add(tma);
optionsChangesetNumber++;
}
}
/**
* Un-marks tokens previously marked to be modified.
* @param currentOrNewTokens List of tokens to be un-marked (current or modified).
*/
public static final void unmodifyBuiltinTokens(String... currentOrNewTokens) {
if (currentOrNewTokens == null) return;
if (currentOrNewTokens.length == 0) return;
if (tokensToModify.size() == 0) return;
synchronized (tokensToModify) {
List toRemove = new ArrayList();
for (String token : currentOrNewTokens)
if (token != null)
if (token.length() > 0) {
for (TokenModification tm : tokensToModify)
if ( (token.equals(tm.currentToken)) || (token.equals(tm.newToken)) ) toRemove.add(tm);
}
for (TokenModification tm : toRemove)
tokensToModify.remove(tm);
optionsChangesetNumber++;
}
}
/**
* Un-marks all tokens previously marked to be modified.
*/
public static final void unmodifyAllBuiltinTokens() {
synchronized (tokensToModify) {
tokensToModify.clear();
optionsChangesetNumber++;
}
}
/**
* Return details on tokens marked to be modified.
* @return String[i][0] - current token, String[i][1] - new token,
* String[i][2] - new token description.
*/
public static final String[][] getBuiltinTokensToModify() {
synchronized (tokensToModify) {
int tokensNum = tokensToModify.size();
String[][] tokensToModifyArray = new String[tokensNum][3];
for (int i = 0; i < tokensNum; i++) {
TokenModification tm = tokensToModify.get(i);
tokensToModifyArray[i][0] = tm.currentToken;
tokensToModifyArray[i][1] = tm.newToken;
tokensToModifyArray[i][2] = tm.newTokenDescription;
}
return tokensToModifyArray;
}
}
/**
* Sets mXparser to override built-in tokens
* by user defined tokens.
*/
public static final synchronized void setToOverrideBuiltinTokens() {
overrideBuiltinTokens = true;
optionsChangesetNumber++;
}
/**
* Sets mXparser not to override built-in tokens
* by user defined tokens.
*/
public static final synchronized void setNotToOverrideBuiltinTokens() {
overrideBuiltinTokens = false;
optionsChangesetNumber++;
}
/**
* Checks whether mXparser is set to override built-in tokens.
*
* @return True if mXparser is set to override built-in tokens by
* user defined tokens, otherwise false.
*/
public static final boolean checkIfsetToOverrideBuiltinTokens() {
return overrideBuiltinTokens;
}
/**
* Sets default mXparser options
*
*/
public static final synchronized void setDefaultOptions() {
enableUlpRounding();
enableAlmostIntRounding();
setMaxAllowedRecursionDepth(DEFAULT_MAX_RECURSION_CALLS);
setNotToOverrideBuiltinTokens();
unmodifyAllBuiltinTokens();
setRadiansMode();
resetCancelCurrentCalculationFlag();
setDefaultEpsilon();
setEpsilonComparison();
setToFractionInitSearchSize(NumberTheory.DEFAULT_TO_FRACTION_INIT_SEARCH_SIZE);
optionsChangesetNumber++;
}
/**
* Returns token type description.
*
* @param tokenTypeId Token type id
* @return String representing token type description.
*/
public static final String getTokenTypeDescription(int tokenTypeId) {
String type = "";
switch (tokenTypeId) {
case ParserSymbol.TYPE_ID: type = ParserSymbol.TYPE_DESC; break;
case ParserSymbol.NUMBER_TYPE_ID: type = "Number"; break;
case Operator.TYPE_ID: type = Operator.TYPE_DESC; break;
case BooleanOperator.TYPE_ID: type = BooleanOperator.TYPE_DESC; break;
case BinaryRelation.TYPE_ID: type = BinaryRelation.TYPE_DESC; break;
case Function1Arg.TYPE_ID: type = Function1Arg.TYPE_DESC; break;
case Function2Arg.TYPE_ID: type = Function2Arg.TYPE_DESC; break;
case Function3Arg.TYPE_ID: type = Function3Arg.TYPE_DESC; break;
case FunctionVariadic.TYPE_ID: type = FunctionVariadic.TYPE_DESC; break;
case CalculusOperator.TYPE_ID: type = CalculusOperator.TYPE_DESC; break;
case RandomVariable.TYPE_ID: type = RandomVariable.TYPE_DESC; break;
case ConstantValue.TYPE_ID: type = ConstantValue.TYPE_DESC; break;
case Argument.TYPE_ID: type = Argument.TYPE_DESC; break;
case RecursiveArgument.TYPE_ID_RECURSIVE: type = RecursiveArgument.TYPE_DESC_RECURSIVE; break;
case Function.TYPE_ID: type = Function.TYPE_DESC; break;
case Constant.TYPE_ID: type = Constant.TYPE_DESC; break;
case Unit.TYPE_ID: type = Unit.TYPE_DESC; break;
case BitwiseOperator.TYPE_ID: type = BitwiseOperator.TYPE_DESC; break;
}
return type;
}
/**
* Converts integer number to hex string (plain text)
*
* @param number Integer number
* @return Hex string (i.e. FF23)
*/
public static final String numberToHexString(int number) {
return Integer.toHexString(number);
}
/**
* Converts long number to hex string (plain text)
*
* @param number Long number
* @return Hex string (i.e. FF23)
*/
public static final String numberToHexString(long number) {
return Long.toHexString(number);
}
/**
* Converts (long)double number to hex string (plain text)
*
* @param number Double number
* @return Hex string (i.e. FF23)
*/
public static final String numberToHexString(double number) {
return numberToHexString((long)number);
}
/**
* Converts hex string into ASCII string, where each letter is
* represented by two hex digits (byte) from the hex string.
*
* @param hexString Hex string (i.e. 48656C6C6F)
* @return ASCII string (i.e. '48656C6C6F' = 'Hello')
*/
public static final String hexString2AsciiString(String hexString) {
String hexByteStr;
int hexByteInt;
String asciiString = "";
for (int i = 0; i < hexString.length(); i+=2) {
hexByteStr = hexString.substring(i, i+2);
hexByteInt = Integer.parseInt(hexByteStr, 16);
asciiString = asciiString + (char)hexByteInt;
}
return asciiString;
}
/**
* Converts number into ASCII string, where each letter is
* represented by two hex digits (byte) from the hex representation
* of the original number
*
* @param number Integer number (i.e. 310939249775 = '48656C6C6F')
* @return ASCII string (i.e. '48656C6C6F' = 'Hello')
*/
public static final String numberToAsciiString(int number) {
return hexString2AsciiString( numberToHexString(number) );
}
/**
* Converts number into ASCII string, where each letter is
* represented by two hex digits (byte) from the hex representation
* of the original number
*
* @param number Long number (i.e. 310939249775 = '48656C6C6F')
* @return ASCII string (i.e. '48656C6C6F' = 'Hello')
*/
public static final String numberToAsciiString(long number) {
return hexString2AsciiString( numberToHexString(number) );
}
/**
* Converts (long)double number into ASCII string, where each letter is
* represented by two hex digits (byte) from the hex representation
* of the original number casted to long type.
*
* @param number Double number (i.e. 310939249775 = '48656C6C6F')
* @return ASCII string (i.e. '48656C6C6F' = 'Hello')
*/
public static final String numberToAsciiString(double number) {
return hexString2AsciiString( numberToHexString(number) );
}
/**
* Other base (base between 1 and 36) number literal conversion to decimal number.
*
* @param numberLiteral Number literal in given numeral system with base between
* 1 and 36. Digits: 0:0, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7,
* 8:8, 9:9, 10:A, 11:B, 12:C, 13:D, 14:E, 15:F, 16:G, 17:H,
* 18:I, 19:J, 20:K, 21:L, 22:M, 23:N, 24:O, 25:P, 26:Q, 27:R,
* 28:S, 29:T, 30:U, 31:V, 32:W, 33:X, 34:Y, 35:Z
* @param numeralSystemBase Numeral system base, between 1 and 36
* @return Decimal number after conversion. If conversion was not
* possible the Double.NaN is returned.
*/
public static final double convOthBase2Decimal(String numberLiteral, int numeralSystemBase) {
return NumberTheory.convOthBase2Decimal(numberLiteral, numeralSystemBase);
}
/**
* Other base (base between 1 and 36) number literal conversion to decimal number.
* Base specification included in number literal.
*
* Examples: 2 for b2.1001 or b.1001, 1 for b1.111, 23 for b23.123afg
* 16 for b16.123acdf or h.123acdf.
*
* @param numberLiteral Number literal string.
*
* Base format: b1. b2. b. b3. b4. b5. b6. b7. b8. o. b9. b10. b11. b12.
* b13. b14. b15. b16. h. b17. b18. b19. b20. b21. b22. b23. b24. b25. b26.
* b27. b28. b29. b30. b31. b32. b33. b34. b35. b36.
*
* Digits: 0:0, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8, 9:9, 10:A, 11:B, 12:C,
* 13:D, 14:E, 15:F, 16:G, 17:H, 18:I, 19:J, 20:K, 21:L, 22:M, 23:N, 24:O, 25:P,
* 26:Q, 27:R, 28:S, 29:T, 30:U, 31:V, 32:W, 33:X, 34:Y, 35:Z
*
* @return Decimal number after conversion. If conversion was not
* possible the Double.NaN is returned.
*/
public static final double convOthBase2Decimal(String numberLiteral) {
return NumberTheory.convOthBase2Decimal(numberLiteral);
}
/**
* Other base to decimal conversion.
*
* @param numeralSystemBase Numeral system base has to be above 0.
* @param digits List of digits
* @return Number after conversion. If conversion is not possible then
* Double.NaN is returned.
*/
public static final double convOthBase2Decimal(int numeralSystemBase, int... digits) {
return NumberTheory.convOthBase2Decimal(numeralSystemBase, digits);
}
/**
* Other base to decimal conversion.
*
* @param numeralSystemBase Numeral system base has to be above 0.
* @param digits List of digits
* @return Number after conversion. If conversion is not possible then
* Double.NaN is returned.
*/
public static final double convOthBase2Decimal(double numeralSystemBase, double... digits) {
return NumberTheory.convOthBase2Decimal(numeralSystemBase, digits);
}
/**
* Decimal number to other numeral system conversion with base
* between 1 and 36.
*
* @param decimalNumber Decimal number
* @param numeralSystemBase Numeral system base between 1 and 36
* @return Number literal representing decimal number in
* given numeral numeral system. Digits
* 0:0, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8,
* 9:9, 10:A, 11:B, 12:C, 13:D, 14:E, 15:F, 16:G,
* 17:H, 18:I, 19:J, 20:K, 21:L, 22:M, 23:N, 24:O,
* 25:P, 26:Q, 27:R, 28:S, 29:T, 30:U, 31:V, 32:W,
* 33:X, 34:Y, 35:Z. If conversion was not possible
* the "NaN" string is returned.
*/
public static final String convDecimal2OthBase(double decimalNumber, int numeralSystemBase) {
return NumberTheory.convDecimal2OthBase(decimalNumber, numeralSystemBase);
}
/**
* Decimal number to other numeral system conversion with base
* between 1 and 36.
*
* @param decimalNumber Decimal number
* @param numeralSystemBase Numeral system base between 1 and 36
* @param format If 1 then always bxx. is used, i.e. b1. or b16.
* If 2 then for binary b. is used, for octal o. is used,
* for hexadecimal h. is used, otherwise bxx. is used
* where xx is the numeral system base specification.
*
* @return Number literal representing decimal number in
* given numeral numeral system.
*
* Base format: b1. b2. b. b3. b4. b5. b6. b7. b8. o. b9. b10. b11. b12.
* b13. b14. b15. b16. h. b17. b18. b19. b20. b21. b22. b23. b24. b25. b26.
* b27. b28. b29. b30. b31. b32. b33. b34. b35. b36.
*
* Digits: 0:0, 1:1, 2:2, 3:3, 4:4, 5:5, 6:6, 7:7, 8:8, 9:9, 10:A, 11:B, 12:C,
* 13:D, 14:E, 15:F, 16:G, 17:H, 18:I, 19:J, 20:K, 21:L, 22:M, 23:N, 24:O, 25:P,
* 26:Q, 27:R, 28:S, 29:T, 30:U, 31:V, 32:W, 33:X, 34:Y, 35:Z
*
* If conversion was not possible the "NaN" string is returned.
*/
public static final String convDecimal2OthBase(double decimalNumber, int numeralSystemBase, int format) {
return NumberTheory.convDecimal2OthBase(decimalNumber, numeralSystemBase, format);
}
/**
* Converts double value to its fraction representation.
*
* @param value Value to be converted
*
* @return Array representing fraction. Sign at index 0,
* numerator at index 1, denominator at index 2.
* If conversion is not possible then Double.NaN is
* assigned to all the fields.
*/
public static final double[] toFraction(double value) {
return NumberTheory.toFraction(value);
}
/**
* Converts double value to its mixed fraction representation.
*
* @param value Value to be converted
*
* @return Array representing fraction.
* Sign at index 0, whole number at index 1,
* numerator at index 2, denominator at index 3.
* If conversion is not possible then Double.NaN is
* assigned to both numerator and denominator.
*/
public static final double[] toMixedFraction(double value) {
return NumberTheory.toMixedFraction(value);
}
/**
* Converts array representing fraction to fraction string representation.
*
* @param fraction Array representing fraction (including mix fractions)
* @return String representation of fraction.
*
* @see NumberTheory#toFraction(double)
* @see NumberTheory#toMixedFraction(double)
*/
public static final String fractionToString(double[] fraction) {
return NumberTheory.fractionToString(fraction);
}
/**
* Converts number to its fraction string representation.
*
* @param value Given number
* @return String representation of fraction.
*
* @see NumberTheory#toFraction(double)
* @see NumberTheory#fractionToString(double[])
*/
public static final String toFractionString(double value) {
return NumberTheory.toFractionString(value);
}
/**
* Converts number to its mixed fraction string representation.
*
* @param value Given number
* @return String representation of fraction.
*
* @see NumberTheory#toMixedFraction(double)
* @see NumberTheory#fractionToString(double[])
*/
public static final String toMixedFractionString(double value) {
return NumberTheory.toMixedFractionString(value);
}
/**
* Prints object.toString to the Console + new line
*
* @param o Object to print
*/
public static final void consolePrintln(Object o) {
synchronized (CONSOLE_OUTPUT) {
if ((CONSOLE_ROW_NUMBER == 1) && (CONSOLE_OUTPUT.equals(""))) {
System.out.print(CONSOLE_PREFIX);
CONSOLE_OUTPUT = CONSOLE_PREFIX;
}
System.out.println(o);
CONSOLE_ROW_NUMBER++;
System.out.print(CONSOLE_PREFIX);
CONSOLE_OUTPUT = CONSOLE_OUTPUT + o + "\n" + CONSOLE_OUTPUT_PREFIX;
}
}
/**
* Prints array of strings
*
* @param stringArray array of strinfs
*/
public static final void consolePrintln(String[] stringArray) {
if (stringArray == null) {
consolePrintln("null");
return;
}
for (String s : stringArray)
consolePrintln(s);
}
/**
* Prints new line to the Console, no new line
*
*/
public static final void consolePrintln() {
synchronized (CONSOLE_OUTPUT) {
if ((CONSOLE_ROW_NUMBER == 1) && (CONSOLE_OUTPUT.equals(""))) {
System.out.print(CONSOLE_PREFIX);
CONSOLE_OUTPUT = CONSOLE_PREFIX;
}
System.out.println();
CONSOLE_ROW_NUMBER++;
System.out.print(CONSOLE_PREFIX);
CONSOLE_OUTPUT = CONSOLE_OUTPUT + "\n" + CONSOLE_OUTPUT_PREFIX;
}
}
/**
* Prints object.toString to the Console
*
* @param o Object to print
*/
public static final void consolePrint(Object o) {
synchronized (CONSOLE_OUTPUT) {
if ((CONSOLE_ROW_NUMBER == 1) && (CONSOLE_OUTPUT.equals(""))) {
System.out.print(CONSOLE_PREFIX);
CONSOLE_OUTPUT = CONSOLE_PREFIX;
}
System.out.print(o);
CONSOLE_OUTPUT = CONSOLE_OUTPUT + o;
}
}
/**
* Resets console output string, console output
* string is being built by consolePrintln(), consolePrint().
*
* @see mXparser#consolePrint(Object)
* @see mXparser#consolePrintln(Object)
* @see mXparser#consolePrintln()
* @see mXparser#resetConsoleOutput()
*/
public static final void resetConsoleOutput() {
synchronized (CONSOLE_OUTPUT) {
CONSOLE_OUTPUT = "";
CONSOLE_ROW_NUMBER = 1;
}
}
/**
* Sets default console prefix.
*/
public static void setDefaultConsolePrefix() {
synchronized (CONSOLE_PREFIX) {
CONSOLE_PREFIX = "[mXparser-v." + VERSION + "] ";
}
}
/**
* Sets default console output string prefix.
*/
public static void setDefaultConsoleOutputPrefix() {
synchronized (CONSOLE_OUTPUT_PREFIX) {
CONSOLE_OUTPUT_PREFIX = "[mXparser-v." + VERSION + "] ";
}
}
/**
* Sets console prefix.
*
* @param consolePrefix String containing console prefix definition.
*/
public static void setConsolePrefix(String consolePrefix) {
synchronized (CONSOLE_PREFIX) {
CONSOLE_PREFIX = consolePrefix;
}
}
/**
* Sets console output string prefix.
*
* @param consoleOutputPrefix String containing console output prefix definition.
*/
public static void setConsoleOutputPrefix(String consoleOutputPrefix) {
synchronized (CONSOLE_OUTPUT_PREFIX) {
CONSOLE_OUTPUT_PREFIX = consoleOutputPrefix;
}
}
/**
* Returns console output string, console output string
* is being built by consolePrintln(), consolePrint().
*
* @return Console output string
*
* @see mXparser#consolePrint(Object)
* @see mXparser#consolePrintln(Object)
* @see mXparser#consolePrintln()
* @see mXparser#resetConsoleOutput()
*/
public static final String getConsoleOutput() {
return CONSOLE_OUTPUT;
}
/**
* General mXparser expression help
*
* @return String with all general help content
*/
public static final String getHelp() {
synchronized (mXparserExp) {
return mXparserExp.getHelp();
}
}
/**
* General mXparser expression help - in-line key word searching
* @param word Key word to be searched
* @return String with all help content
* lines containing given keyword
*/
public static final String getHelp(String word) {
synchronized (mXparserExp) {
return mXparserExp.getHelp(word);
}
}
/**
* Prints all help content.
*/
public static final void consolePrintHelp() {
System.out.println(getHelp());
}
/**
* Prints filtered help content.
* @param word Key word.
*/
public static final void consolePrintHelp(String word) {
System.out.println(getHelp(word));
}
/**
* Returns list of key words known to the parser
*
* @return List of keywords known to the parser.
*
* @see KeyWord
* @see KeyWord#wordTypeId
* @see mXparser#getHelp()
*/
public static final List getKeyWords() {
synchronized (mXparserExp) {
return mXparserExp.getKeyWords();
}
}
/**
* Returns list of key words known to the parser
*
* @param query Give any string to filter list of key words against this string.
* User more precise syntax: str=tokenString, desc=tokenDescription,
* syn=TokenSyntax, sin=tokenSince, wid=wordId, tid=wordTypeId
* to narrow the result.
*
* @return List of keywords known to the parser filter against query string.
*
* @see KeyWord
* @see KeyWord#wordTypeId
* @see mXparser#getHelp(String)
*/
public static final List getKeyWords(String query) {
synchronized (mXparserExp) {
return mXparserExp.getKeyWords(query);
}
}
/**
* Function used to introduce some compatibility
* between JAVA and C# while regexp matching.
*
* @param str String
* @param pattern Pattern (regexp)
*
* @return True if pattern matches entirely, False otherwise
*/
public static final boolean regexMatch(String str, String pattern){
return Pattern.matches(pattern, str);
}
/**
* Prints tokens to the console.
* @param tokens Tokens list.
*
* @see Expression#getCopyOfInitialTokens()
* @see Token
*/
public static final void consolePrintTokens(List tokens) {
Expression.showTokens(tokens);
}
/**
* License info.
*/
public static final String LICENSE =
"mXparser - version " + mXparser.VERSION + "\n"
+ "MathParser.org-mXparser DUAL LICENSE AGREEMENT as of date 2022-05-22\n"
+ "The most up-to-date license is available at the below link:\n"
+ "- https://mathparser.org/mxparser-license\n"
+ "\n"
+ "AUTHOR: Copyright 2010 - 2022 Mariusz Gromada - All rights reserved\n"
+ "PUBLISHER: INFIMA - https://payhip.com/infima\n"
+ "\n"
+ "SOFTWARE means source code and/or binary form and/or documentation.\n"
+ "PRODUCT: MathParser.org-mXparser SOFTWARE\n"
+ "LICENSE: DUAL LICENSE AGREEMENT\n"
+ "\n"
+ "BY INSTALLING, COPYING, OR OTHERWISE USING THE PRODUCT, YOU AGREE TO BE\n"
+ "BOUND BY ALL OF THE TERMS AND CONDITIONS OF THE DUAL LICENSE AGREEMENT.\n"
+ "\n"
+ "AUTHOR & PUBLISHER provide the PRODUCT under the DUAL LICENSE AGREEMENT\n"
+ "model designed to meet the needs of both non-commercial use as well as\n"
+ "commercial use.\n"
+ "\n"
+ "NON-COMMERCIAL USE means any use or activity where a fee is not charged\n"
+ "and the purpose is not the sale of a good or service, and the use or\n"
+ "activity is not intended to produce a profit. NON-COMMERCIAL USE examples:\n"
+ "\n"
+ "1. Free Open-Source Software (\"FOSS\").\n"
+ "2. Non-commercial use in research, scholarly and education.\n"
+ "\n"
+ "COMMERCIAL USE means any use or activity where a fee is charged or the\n"
+ "purpose is the sale of a good or service, or the use or activity is\n"
+ "intended to produce a profit. COMMERCIAL USE examples:\n"
+ "\n"
+ "1. OEMs (Original Equipment Manufacturers).\n"
+ "2. ISVs (Independent Software Vendors).\n"
+ "3. VARs (Value Added Resellers).\n"
+ "4. Other distributors that combine and distribute commercially licensed\n"
+ " software.\n"
+ "\n"
+ "IN CASE YOU WANT TO USE THE PRODUCT COMMERCIALLY, YOU MUST PURCHASE THE\n"
+ "APPROPRIATE LICENSE FROM \"INFIMA\" ONLINE STORE, STORE ADDRESS:\n"
+ "\n"
+ "1. https://mathparser.org/order-commercial-license\n"
+ "2. https://payhip.com/infima\n"
+ "\n"
+ "NON-COMMERCIAL LICENSE\n"
+ "\n"
+ "Redistribution and use of the PRODUCT in source and/or binary forms,\n"
+ "with or without modification, are permitted provided that the following\n"
+ "conditions are met:\n"
+ "\n"
+ "1. Redistributions of source code must retain unmodified content of the\n"
+ " entire MathParser.org-mXparser DUAL LICENSE AGREEMENT, including\n"
+ " definition of NON-COMMERCIAL USE, definition of COMMERCIAL USE,\n"
+ " NON-COMMERCIAL LICENSE conditions, COMMERCIAL LICENSE conditions, and\n"
+ " the following DISCLAIMER.\n"
+ "2. Redistributions in binary form must reproduce the entire content of\n"
+ " MathParser.org-mXparser DUAL LICENSE AGREEMENT in the documentation\n"
+ " and/or other materials provided with the distribution, including\n"
+ " definition of NON-COMMERCIAL USE, definition of COMMERCIAL USE,\n"
+ " NON-COMMERCIAL LICENSE conditions, COMMERCIAL LICENSE conditions, and\n"
+ " the following DISCLAIMER.\n"
+ "\n"
+ "COMMERCIAL LICENSE\n"
+ "\n"
+ " 1. Before purchasing a commercial license, AUTHOR & PUBLISHER allow you\n"
+ " to download, install and use up to three copies of the PRODUCT to\n"
+ " perform integration tests, confirm the quality of the PRODUCT and\n"
+ " its suitability. The testing period should be limited to fourteen\n"
+ " days. Tests should be performed under the conditions of test\n"
+ " environments. The purpose of the tests must not be to generate profit.\n"
+ " 2. Provided that you purchased a license from \"INFIMA\" online store\n"
+ " (store address: https://mathparser.org/order-commercial-license or\n"
+ " https://payhip.com/infima), and you comply with all below terms and\n"
+ " conditions, and you have acknowledged and understood the following\n"
+ " DISCLAIMER, AUTHOR & PUBLISHER grant you a nonexclusive license\n"
+ " including the following rights:\n"
+ " 3. The license has been granted only to you, i.e., the person or entity\n"
+ " that made the purchase, who is identified and confirmed by the data\n"
+ " provided during the purchase.\n"
+ " 4. In case you purchased a license in the \"ONE-TIME PURCHASE\" model,\n"
+ " the license has been granted only for the PRODUCT version specified\n"
+ " in the purchase. The upgrade policy gives you additional rights and\n"
+ " is described in the dedicated section below.\n"
+ " 5. In case you purchased a license in the \"SUBSCRIPTION\" model, you can\n"
+ " install and use any version of the PRODUCT, but only during the\n"
+ " subscription validity period.\n"
+ " 6. In case you purchased a \"SINGLE LICENSE\" you can install and use the\n"
+ " PRODUCT from one workstation.\n"
+ " 7. Additional copies of the PRODUCT can be installed and used from more\n"
+ " than one workstation; however, this number is limited to the number\n"
+ " of workstations purchased as per order.\n"
+ " 8. In case you purchased a \"SITE LICENSE \", the PRODUCT can be installed\n"
+ " and used from all workstations located at your premises.\n"
+ " 9. You may incorporate the unmodified PRODUCT into your own products\n"
+ " and software.\n"
+ "10. If you purchased a license with the \"SOURCE CODE\" option, you may\n"
+ " modify the PRODUCT's source code and incorporate the modified source\n"
+ " code into your own products and/or software.\n"
+ "11. Provided that the license validity period has not expired, you may\n"
+ " distribute your product and/or software with the incorporated\n"
+ " PRODUCT royalty-free.\n"
+ "12. You may make copies of the PRODUCT for backup and archival purposes.\n"
+ "13. AUTHOR & PUBLISHER reserve all rights not expressly granted to you\n"
+ " in this agreement.\n"
+ "\n"
+ "ADDITIONAL CLARIFICATION ON WORKSTATION\n"
+ "\n"
+ "A workstation is a device, a remote device, or a virtual device, used by\n"
+ "you, your employees, or other entities to whom you have commissioned the\n"
+ "tasks. For example, the number of workstations may refer to the number\n"
+ "of software developers, engineers, architects, scientists, and other\n"
+ "professionals who use the PRODUCT on your behalf. The number of\n"
+ "workstations is not the number of copies of your end-product that you\n"
+ "distribute to your end-users.\n"
+ "\n"
+ "By purchasing the COMMERCIAL LICENSE, you only pay for the number of\n"
+ "workstations, while the number of copies of your final product\n"
+ "(delivered to your end-users) is not limited.\n"
+ "\n"
+ "UPGRADE POLICY\n"
+ "\n"
+ "The PRODUCT is versioned according to the following convention:\n"
+ "\n"
+ " [MAJOR].[MINOR].[PATCH]\n"
+ "\n"
+ "1. COMMERCIAL LICENSE holders can install and use the updated version\n"
+ " for bug fixes free of charge, i.e. if you have purchased a license\n"
+ " for the [MAJOR].[MINOR] version (e.g.: 5.0), you can freely install\n"
+ " all the various releases specified in the [PATCH] version (e.g.: 5.0.2).\n"
+ " The license terms remain unchanged after the update.\n"
+ "2. COMMERCIAL LICENSE holders for [MAJOR].[MINOR] version (e.g.: 5.0)\n"
+ " can install and use the updated version [MAJOR].[MINOR + 1] free of\n"
+ " charge, i.e., plus one release in the [MINOR] range (e.g.: 5.1). The\n"
+ " license terms remain unchanged after the update.\n"
+ "3. COMMERCIAL LICENSE holders who wish to upgrade their version, but are\n"
+ " not eligible for the free upgrade, can claim a discount when\n"
+ " purchasing the upgrade. For this purpose, please contact us via e-mail.\n"
+ "\n"
+ "DISCLAIMER\n"
+ "\n"
+ "THIS PRODUCT IS PROVIDED BY AUTHOR & PUBLISHER \"AS IS\" AND ANY EXPRESS\n"
+ "OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n"
+ "WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n"
+ "DISCLAIMED. IN NO EVENT SHALL AUTHOR OR PUBLISHER OR CONTRIBUTORS BE\n"
+ "LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n"
+ "CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n"
+ "SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\n"
+ "INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\n"
+ "CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n"
+ "ARISING IN ANY WAY OUT OF THE USE OF THIS PRODUCT, EVEN IF ADVISED OF\n"
+ "THE POSSIBILITY OF SUCH DAMAGE.\n"
+ "\n"
+ "THE VIEWS AND CONCLUSIONS CONTAINED IN THE PRODUCT AND DOCUMENTATION ARE\n"
+ "THOSE OF THE AUTHORS AND SHOULD NOT BE INTERPRETED AS REPRESENTING\n"
+ "OFFICIAL POLICIES, EITHER EXPRESSED OR IMPLIED, OF AUTHOR OR PUBLISHER.\n"
+ "\n"
+ "CONTACT\n"
+ "\n"
+ "- e-mail: [email protected]\n"
+ "- website: https://mathparser.org\n"
+ "- source code: https://github.com/mariuszgromada/MathParser.org-mXparser\n"
+ "- online store: https://mathparser.org/order-commercial-license\n"
+ "- online store: https://payhip.com/infima\n"
;
/**
* Gets license info
*
* @return license info as string
*/
public static final String getLicense() {
return LICENSE;
}
/**
* Waits given number of milliseconds
*
* @param n Number of milliseconds
*/
public static final void wait (int n){
long t0,t1;
t0=System.currentTimeMillis();
do{
t1=System.currentTimeMillis();
}
while (t1-t0 © 2015 - 2024 Weber Informatics LLC | Privacy Policy