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DiffrIntegrSep.java
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/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package Calculus;
import static Calculus.MathsContxtLAv.ComplexAssignFlag;
import static Calculus.MathsContxtLAv.LookAheadOperator;
import static Calculus.MathsContxtLAv.GotExpntNumFlag;
import static Calculus.MathsContxtLAv.EnteredLAConstFlag;
import static Calculus.MathsContxtLAv.FunctionDiffExpr;
import static Calculus.MathsContxtLAv.FunctionExpr;
import static Calculus.MathsContxtLAv.FunctionName;
import static Calculus.MathsContxtLAv.FactorsDiffExpr;
import static Calculus.MathsContxtLAv.FactorsExpr;
import static Calculus.MathsContxtLAv.ParanDiffExpr;
import static Calculus.MathsContxtLAv.ParanExpr;
import static Calculus.MathsContxtLAv.ParanExprFlag;
import static Calculus.MathsContxtLAv.FuncArgFlag;
import static Calculus.MathsContxtLAv.ContainsXFlag;
import static Calculus.MathsContxtLAv.ParenthesisHighLvlNum;
import static Calculus.MathsContxtLAv.ParenthesisCurrNum;
import static Calculus.MathsContxtLAv.NormalExprnFlag;
import static Calculus.MathsContxtLAv.LastLADiffIndConstAidPos;
import static Calculus.MathsContxtLAv.GotIndConstPos;
import static Calculus.MathsContxtLAv.TermOutputSetFlag;
import static Calculus.MathsContxtLAv.LADiffIndConstOperator;
import static Calculus.MathsContxtLAv.LADiffFactorOperator;
import static Calculus.MathsContxtLAv.GotIndConstFlag;
import static Calculus.MathsContxtLAv.LastLADiffExtremityAidPos;
import static Calculus.MathsContxtLAv.GotExtremityFlag;
import static Calculus.MathsContxtLAv.ContainsIndConstFlag;
import static Calculus.MathsContxtLAv.ContainsXFlag;
import static Calculus.MathsContxtLAv.DiffTermOperator;
import static Calculus.MathsContxtLAv.FuncArgFlag;
import static Calculus.MathsContxtLAv.GotExpntNumFlag;
import static Calculus.MathsContxtLAv.GotIndConstFlag;
import static Calculus.MathsContxtLAv.GotIndConstPos;
import static Calculus.MathsContxtLAv.GotVariableFlag;
import static Calculus.MathsContxtLAv.GotVariablePos;
import static Calculus.MathsContxtLAv.LADiffFactorOperator;
import static Calculus.MathsContxtLAv.LADiffIndConstOperator;
import static Calculus.MathsContxtLAv.LastLADiffConstCoeffAidPos;
import static Calculus.MathsContxtLAv.LastLADiffIndConstAidPos;
import static Calculus.MathsContxtLAv.NormalNotPareFlag;
import static Calculus.MathsContxtLAv.ParanExprFlag;
import static Calculus.MathsContxtLAv.ParenthesisFlag;
import static Calculus.MathsContxtLAv.ParseLog;
import static Calculus.MathsContxtLAv.ParseMap;
import static Calculus.MathsContxtLAv.ResetVars;
import static Calculus.MathsContxtLAv.SavedOperator;
import static Calculus.MathsContxtLAv.Str;
import static Calculus.MathsContxtLAv.StrIsAConstant;
import static Calculus.MathsContxtLAv.TermOutputIndConst;
import static Calculus.MathsContxtLAv.ch;
import static Calculus.MathsContxtLAv.chTerm;
import static Calculus.MathsContxtLAv.log;
import static Calculus.MathsContxtLAv.pos;
import static Calculus.MathsContxtLAv.posParen;
import static Calculus.MathsContxtLAv.posTerm;
import static Calculus.UsageCalculus.Order;
import static Calculus.UsageCalculus.StageMapping;
import static Calculus.UsageCalculus.TestCase;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.HashMap;
import java.util.Map;
import java.util.function.DoubleUnaryOperator;
import org.apache.log4j.Logger;
/**
*
* @author Administrator
*/
public class DiffrIntegrSep {
public static Logger log = Logger.getLogger(DiffrIntegrSep.class.getName());
//Important Mapping Variables
private static Map<String, Double> variables = new HashMap<>();
private static Map<String, DoubleUnaryOperator> functions = new HashMap<>();
public static Map<String, String> functionsDiff = new HashMap<>();
public static Map<String, String> functionsIntegr = new HashMap<>();
private static Map<Integer, String> variablesEqnPartialSol = new HashMap<>();
//LAConstDiff Expression character Index and Character Variable
public static int posLADiff = -1, chLADiff;
public static String StrLADiff;
//Diff Expression character Index and Character Variable
public static int posDiff = -1, chDiff;
public static String StrDiff;
//Diff Expression character Index and Character Variable
public static int posIntegr = -1, chIntegr;
public static String StrIntegr;
// Global Variables && Functions
// Maximum number of Double Fractional Digits displayed in Equation
private static int MaximumFractionDigits = 25;
// Maximum number of Integer Digits displayed in Equation
private static int MaximumIntegerDigits = 50;
private static boolean ZeroTermSignFlag = false;
public static boolean ParanExprInProgressFlag = false;
public static String FuncName = "";
public static void MyFuncDiff() {
functionsDiff.put("sin", "cos");
functionsDiff.put("cos", "-sin");
functionsDiff.put("tan", "sec^2.0");
functionsDiff.put("log", "log");
functionsDiff.put("ln", "ln");
functionsDiff.put("exp", "exp");
//TODO:More Differential Unary Functions to be added
}
public static void MyFuncIntegr() {
functionsIntegr.put("sin", "-cos");
functionsIntegr.put("cos", "sin");
//functionsIntegr.put("tan", "sec^2.0");
//functionsIntegr.put("log", "log");
//functionsIntegr.put("ln", "ln");
functionsIntegr.put("exp", "exp");
//TODO:More Differential Unary Functions to be added
}
static void nextCharDiff() {
++posDiff;
chDiff = (posDiff < StrDiff.length()) ? StrDiff.charAt(posDiff) : -1;
if ((chDiff == -1) && (posDiff >= StrDiff.length())) {
posDiff = StrDiff.length();
} else if ((chDiff == -1) || ((chDiff == 0))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "nextCharDiff:nextCharDiff:Unexpected: " + (char) chDiff + " int=" + (int) chDiff + " Cannot Format:" + StrDiff.substring(posDiff, StrDiff.length()));
}
}
static void prevCharDiff() {
--posDiff;
chDiff = (posDiff >= 0) ? StrDiff.charAt(posDiff) : -1;
if ((chDiff == -1) && (posDiff < 0))
; else if ((chDiff == -1) || ((chDiff == 0))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "prevCharDiff:prevCharDiff:Unexpected: " + (char) chDiff + " int=" + (int) chDiff + " Cannot Format:" + StrDiff.substring(posDiff, StrDiff.length()));
}
}
static boolean eatDiff(int CharToEat) {
while (chDiff == ' ') {
nextCharDiff();
}
if (chDiff == CharToEat) {
nextCharDiff();
return true;
}
return false;
}
static void SyncDiff() {
if ((posDiff < StrDiff.length())
&& (StrDiff.charAt(posDiff) != chDiff)) {
if (StrDiff.charAt(posDiff + 1) == chDiff) {
posDiff++;
} else if (StrDiff.charAt(posDiff - 1) == chDiff) {
posDiff--;
}
}
}
static void nextCharIntegr() {
++posIntegr;
chIntegr = (posIntegr < StrIntegr.length()) ? StrIntegr.charAt(posIntegr) : -1;
if ((chIntegr == -1) && (posIntegr >= StrIntegr.length())) {
posIntegr = StrIntegr.length();
} else if ((chIntegr == -1) || ((chIntegr == 0))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "nextCharIntegr:nextCharIntegr:Unexpected: " + (char) chIntegr + " int=" + (int) chIntegr + " Cannot Format:" + StrIntegr.substring(posIntegr, StrIntegr.length()));
}
}
static void prevCharIntegr() {
--posIntegr;
chIntegr = (posIntegr >= 0) ? StrIntegr.charAt(posIntegr) : -1;
if ((chIntegr == -1) && (posIntegr < 0))
; else if ((chIntegr == -1) || ((chIntegr == 0))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "prevCharIntegr:prevCharIntegr:Unexpected: " + (char) chIntegr + " int=" + (int) chIntegr + " Cannot Format:" + StrIntegr.substring(posIntegr, StrIntegr.length()));
}
}
static boolean eatIntegr(int CharToEat) {
while (chIntegr == ' ') {
nextCharIntegr();
}
if (chIntegr == CharToEat) {
nextCharIntegr();
return true;
}
return false;
}
static void SyncIntegr() {
if ((posIntegr < StrIntegr.length())
&& (StrIntegr.charAt(posIntegr) != chIntegr)) {
if (StrIntegr.charAt(posIntegr + 1) == chIntegr) {
posIntegr++;
} else if (StrIntegr.charAt(posIntegr - 1) == chIntegr) {
posIntegr--;
}
}
}
public static String RemoveEDbl(double Number) {
String StrNumber = "" + Number;
if ((StrNumber.contains("E")) || (StrNumber.contains("e"))) {
NumberFormat formatter = new DecimalFormat();
formatter.setMaximumFractionDigits(MaximumFractionDigits);
formatter.setMaximumIntegerDigits(MaximumIntegerDigits);
log.info("RemoveEDbl:Number=" + Number);
log.info("RemoveEDbl:Formatted Number=" + formatter.format(Number));
return formatter.format(Number);
}
return (StrNumber);
}
public static String StrRemoveEDbl(String Number) {
if ((Number.contains("E")) || (Number.contains("e"))) {
NumberFormat formatter = new DecimalFormat("#.##");
formatter.setMaximumFractionDigits(MaximumFractionDigits);
formatter.setMaximumIntegerDigits(MaximumIntegerDigits);
log.info("StrRemoveEDbl:Number=" + Number);
log.info("StrRemoveEDbl:Formatted Number=" + formatter.format(Number));
return formatter.format(Number);
}
return Number;
}
static boolean IsAConstant(String StrX1, String DiffWithRespTo) {
try {
StrIsAConstant = "Unknown";
String StrX = StrX1;
//log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant);
log.info("IsAConstant:StrX=" + StrX);
log.info("IsAConstant:DiffWithRespTo=" + DiffWithRespTo);
// if ((StrX != null)
// && (!StrX.equalsIgnoreCase(""))
// && (!StrX.contains(DiffWithRespTo))
// && (StrX.matches("[-+]+"))) {
// StrIsAConstant = "Number";
// log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant);
// return true;
// } else
if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (!StrX.contains(DiffWithRespTo))
&& (StrX.matches("[\\-\\+]*[0-9\\.]+"))
//&& (!StrX.matches("[\\-\\+]*[a-zA-Z0-9]+"))
&& (Double.isFinite(Double.valueOf(StrX)))) {
StrIsAConstant = "Number";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return true;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (!StrX.contains(DiffWithRespTo))
&& (StrX.matches("[\\+\\-\\*/]*[a-zA-Z0-9]+"))) {
StrIsAConstant = "IndConstant";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (!StrX.contains(DiffWithRespTo))
&& (StrX.matches("[\\-\\+\\*/]*[0-9\\.]+"))) {
StrIsAConstant = "NumberExpression";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return true;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (!StrX.equalsIgnoreCase(DiffWithRespTo))
&& (!StrX.contains(DiffWithRespTo))
&& (StrX.matches("[\\+\\-\\*/]*[a-zA-Z0-9\\.]+[\\^]*[0-9\\.]+"))) {
StrIsAConstant = "IndConstantExpression";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (StrX.equalsIgnoreCase(DiffWithRespTo))
&& (StrX.matches("[\\+\\-\\*\\^/]*[a-zA-Z0-9]+"))) {
StrIsAConstant = "Var";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& ((StrX.equalsIgnoreCase(DiffWithRespTo))
|| ((StrX.contains(DiffWithRespTo)) && ((!StrX.contains(DiffWithRespTo + "^")))))
&& (StrX.matches("[\\+\\-\\*\\^/]*[a-zA-Z0-9]+"))) {
StrIsAConstant = "Var";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (StrX.contains(DiffWithRespTo))
&& (!StrX.contains("exp"))) {
StrIsAConstant = "VarExpression";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
} else if ((StrIsAConstant.equalsIgnoreCase("Unknown")) && (StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (!StrX.contains(DiffWithRespTo))
&& ((StrX.contains("E-")) || (StrX.contains("E+")) || (StrX.contains("e+")) || (StrX.contains("e-")))
&& (Double.isFinite(Double.valueOf(StrX)))) {
StrIsAConstant = "Number";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return true;
} else if (StrIsAConstant.equalsIgnoreCase("Unknown") && (StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (StrX.matches("[\\+\\-]*[a-zA-Z0-9\\.]+"))
&& (StrX.matches(DiffWithRespTo))) {
StrIsAConstant = "VarExpression";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
} else if ((StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& (!StrX.contains(DiffWithRespTo))
&& ((StrX.matches("[\\+\\-]*[0-9\\.\\*\\^/]+[0-9\\.]*"))
|| (StrX.matches("[\\+\\-]*[0-9\\.\\*/]*\\^[0-9\\.\\*\\^/]+")))) {
StrIsAConstant = "NumberExpression";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return true;
} else if ((StrIsAConstant.equalsIgnoreCase("Unknown") && (StrX != null)
&& (!StrX.equalsIgnoreCase(""))
&& ((StrX.matches("[\\+\\-]*[a-zA-Z0-9\\.\\*\\^/]+[\\+\\-]*[0-9\\.]*"))
|| (StrX.matches("[\\+\\-]*[0-9\\.\\*/]*\\^[a-zA-Z0-9\\.\\*\\^/]+"))))) {
StrIsAConstant = "IndConstantExpression";
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
}
} catch (NumberFormatException ConstExp) {
log.info("IsAConstant:Exception:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
}
log.info("IsAConstant:StrIsAConstant=" + StrIsAConstant + " DiffWithRespTo=" + DiffWithRespTo);
return false;
}
public static boolean IsExtremity(String StrX1) {
if ((!StrX1.equalsIgnoreCase("Infinity"))
&& (!StrX1.equalsIgnoreCase("-Infinity"))
&& (!StrX1.equalsIgnoreCase("+Infinity"))
&& (!StrX1.equalsIgnoreCase("NaN"))
&& (!StrX1.equalsIgnoreCase("-NaN"))
&& (!StrX1.equalsIgnoreCase("+NaN"))) {
return false;
}
return true;
}
public static boolean IsNumber(int Mych) {
return ((((Mych >= '0') && (Mych <= '9')) || (Mych == '.')));
}
public static boolean IsVariable(int Mych) {
return (((Mych >= 'a') && (Mych <= 'z')) || ((Mych >= 'A') && (Mych <= 'Z')));
}
public static boolean IsIndConstant(int Mych) {
return ((((Mych >= 'a') && (Mych <= 'z')) || ((Mych >= 'A') && (Mych <= 'Z'))));
}
public static boolean IsNotAVariable(int Mych) {
return (((Mych < 'a') && (Mych > 'z')) && ((Mych < 'A') && (Mych > 'Z')));
}
public static boolean IsOperator(int Mych) {
return (((Mych == '+') || (Mych == '-') || (Mych == '*') || (Mych == '/') || (Mych == '^')));
}
public static boolean IsNotANumber(int Mych) {
return (((Mych < '0') && (Mych > '9')) && (Mych != '.'));
}
public static boolean IsNotAnOperator(int Mych) {
return (((Mych != '+') && (Mych != '-') && (Mych != '*') && (Mych != '/') && (Mych != '^')));
}
public static boolean IsLogicalOperator(int Mych) {
return (((Mych == '>') || (Mych == '<') || (Mych == '=') || (Mych == '&') || (Mych == '|') || (Mych == '!')));
}
public static boolean IsNullEmpty(String MyString) {
return ((MyString == null) || (MyString.equalsIgnoreCase("")) || (MyString.equalsIgnoreCase("0.0")) || (MyString.equalsIgnoreCase("+0.0")) || (MyString.equalsIgnoreCase("-0.0")));
}
public static boolean IsNullEmptyZero(String MyString) {
return ((MyString == null) || (MyString.equalsIgnoreCase("")) || (MyString.equalsIgnoreCase("0.0")) || (MyString.equalsIgnoreCase("+0.0")) || (MyString.equalsIgnoreCase("-0.0")));
}
public static boolean IsNotNullAndEmptyAndZero(String MyString) {
return ((MyString != null) && (!MyString.equalsIgnoreCase("")) && (!MyString.equalsIgnoreCase("0.0")) && (!MyString.equalsIgnoreCase("+0.0")) && (!MyString.equalsIgnoreCase("-0.0")));
}
public static boolean IsHighLvlNumberExprn(String MyString, String DiffWithRespTo) {
int startPos = 0;
int Mych = 0;
if (MyString.length() >= 1) {
Mych = MyString.charAt(startPos);
} else if ((MyString == null) || (MyString.isEmpty())) {
Mych = -1;
}
int i = 0;
double xx = 1.0;
boolean EnteredLoopFlag = false;
//numbers
while ((MyString != null) && (!MyString.equalsIgnoreCase("")) && (MyString.length() > 1) && (i < MyString.length()) && (Mych != -1) && (Mych != 0) && (IsNumber(Mych))) {
Mych = MyString.charAt(i);
i++;
EnteredLoopFlag = true;
}
if ((EnteredLoopFlag == true) && (MyString != null) && (!MyString.equalsIgnoreCase("")) && (!MyString.equalsIgnoreCase("NaN")) && (i == MyString.length())) {
//xx = Double.parseDouble(MyString);
if ((MyString.contains("-")) || (MyString.contains("+")) || (MyString.contains("*")) || (MyString.contains("/"))) {
return true;
}
} else if (IsAConstant(MyString, DiffWithRespTo)) {
return false;
}
return false;
}
//Created by Rajesh Pai
// Converts Coefficients of a Term to a Single Value
//Used only in Differentiation & Integration
@FunctionalInterface
public interface LookAheadDiffConst {
String eval();
}
public static LookAheadDiffConst parseLADiff(String str, int StartPos, int DiffLength, String MathsOpType, String DiffWithRespTo) {
return new Object() {
void nextCharLADiff() {
++posLADiff;
chLADiff = (posLADiff < StrLADiff.length()) ? StrLADiff.charAt(posLADiff) : -1;
if ((chLADiff == -1) && (posLADiff >= StrLADiff.length())) {
posLADiff = StrLADiff.length();
} else if ((chLADiff == -1) || ((chLADiff == 0))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "LookAheadDiffConst:parseBase:Unexpected: " + (char) chLADiff + " int=" + (int) chLADiff + " Cannot Format:" + StrLADiff.substring(posLADiff, StrLADiff.length()));
}
}
boolean eatLADiff(int CharToEat) {
while (chLADiff == ' ') {
nextCharLADiff();
}
if (chLADiff == CharToEat) {
nextCharLADiff();
return true;
}
return false;
}
void SyncLADiff() {
if ((posLADiff < StrLADiff.length())
&& (StrLADiff.charAt(posLADiff) != chLADiff)) {
if (StrLADiff.charAt(posLADiff + 1) == chLADiff) {
posLADiff++;
} else if (StrLADiff.charAt(posLADiff - 1) == chLADiff) {
posLADiff--;
}
}
}
LookAheadDiffConst parseLADiff() {
ParenthesisFlag = false;
NormalNotPareFlag = true;
ComplexAssignFlag = false;
ContainsIndConstFlag = false;
GotExtremityFlag = false;
GotVariableFlag = false;
GotVariablePos = -1;
StrLADiff = str;
//LastLADiffIndConstAidPos = -1;
//LastLADiffConstCoeffAidPos = -1;
LastLADiffExtremityAidPos = -1;
LookAheadDiffConst x = (() -> "");
log.info("LookAheadDiffConst:parseLADiff:StrLADiff=" + StrLADiff + " DiffTermOperator=" + (char) DiffTermOperator);
// if (ComplexAssignFlag == true) {
// ComplexAssignFlag = false;
// GotVariableFlag = false;
// posLADiff = GotVariablePos;
// chLADiff = StrLADiff.charAt(GotVariablePos);
// } else
posLADiff = 0;
chLADiff = StrLADiff.charAt(0);
int startpos = posLADiff;
log.info("LookAheadDiffConst:parseLADiff:StartPos=" + StartPos + " DiffTermOperator=" + (char) DiffTermOperator + " startpos=" + startpos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff + " ComplexAssignFlag=" + ComplexAssignFlag);
if (MathsOpType.equalsIgnoreCase("Differentiation")) {
ParseLog("LookAheadDiffConst", "parseLADiff", "Initial", "StrLADiff", StrLADiff);
} else if (MathsOpType.equalsIgnoreCase("Integration")) {
ParseLog("LookAheadDiffConst", "parseLADiff", "Initial", "StrLADiff", StrLADiff);
}
if ((StrLADiff != null) && (StrLADiff.length() > 0)
&& (StrLADiff.length() < 2)
&& ((chLADiff == '*')
|| (chLADiff == '/')
|| (chLADiff == '^'))) {
return x;
} else {
x = parseTerm();
}
log.info("LookAheadDiffConst:parseLADiff:Number:x.eval()=" + x.eval() + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
if (MathsOpType.equalsIgnoreCase("Differentiation")) {
ParseLog("LookAheadDiffConst", "parseLADiff", "BeforeMap", "StrLADiff", StrLADiff);
ParseMap("LookAheadDiffConst:parseLADiff:Diff", StrDiff.length(), 0, DiffLength, DiffWithRespTo);
ParseLog("LookAheadDiffConst", "parseLADiff", "Final", "StrDiff", StrDiff);
} else if (MathsOpType.equalsIgnoreCase("Integration")) {
ParseLog("LookAheadDiffConst", "parseLADiff", "BeforeMap", "StrLADiff", StrLADiff);
ParseMap("LookAheadDiffConst:parseLADiff:Integration", StrIntegr.length(), 0, DiffLength, DiffWithRespTo);
ParseLog("LookAheadDiffConst", "parseLADiff", "Final", "StrIntegr", StrIntegr);
}
return x;
}
LookAheadDiffConst parseTerm() {
double Output = 1.0;
GotVariableFlag = false;
GotIndConstFlag = false;
LookAheadDiffConst x = (() -> "");
x = parseFactor();
for (;;) {
if (eatLADiff('*')) { // multiplication
LookAheadDiffConst a = x, b = parseFactor();
log.info("LookAheadDiffConst:parseTerm:b.eval()=" + b.eval() + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
if (GotVariableFlag == true) {
LADiffFactorOperator = '*';
} else if (GotIndConstFlag == true) {
LADiffIndConstOperator = '*';
}
if ((IsAConstant(a.eval(), DiffWithRespTo)) && (IsAConstant(b.eval(), DiffWithRespTo))) {
x = (() -> "" + (Double.parseDouble(a.eval()) * Double.parseDouble(b.eval())));
if (MathsOpType.equalsIgnoreCase("Integration")) {
LastLADiffConstCoeffAidPos = posIntegr + posLADiff;
}
// else if (MathsOpType.equalsIgnoreCase("Differentiation")) {
// LastLADiffConstCoeffAidPos = posDiff + posLADiff;
// }
log.info("LookAheadDiffConst:parseTerm:Mult:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if (!b.eval().equalsIgnoreCase("1.0")) {
x = (() -> a.eval() + "*" + b.eval());
if (MathsOpType.equalsIgnoreCase("Integration")) {
LastLADiffConstCoeffAidPos = posIntegr + posLADiff;
}
log.info("LookAheadDiffConst:parseTerm:Mult:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
}
if ((chLADiff == '+') || (chLADiff == '-')) {
log.info("LookAheadDiffConst:parseTerm:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
return x;
} else if ((chLADiff != -1) && (chLADiff != 0)) {
SyncLADiff();
}
log.info("LookAheadDiffConst:parseTerm:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if (eatLADiff('/')) { // division
LookAheadDiffConst a = x, b = parseFactor();
log.info("LookAheadDiffConst:parseTerm:b.eval()=" + b.eval() + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
if (GotVariableFlag == true) {
LADiffFactorOperator = '/';
} else if (GotIndConstFlag == true) {
LADiffIndConstOperator = '/';
}
if ((IsAConstant(a.eval(), DiffWithRespTo)) && (IsAConstant(b.eval(), DiffWithRespTo))) {
x = (() -> "" + (Double.parseDouble(a.eval()) / Double.parseDouble(b.eval())));
if (MathsOpType.equalsIgnoreCase("Integration")) {
LastLADiffConstCoeffAidPos = posIntegr + posLADiff;
}
// else if (MathsOpType.equalsIgnoreCase("Differentiation")) {
// LastLADiffConstCoeffAidPos = posDiff + posLADiff;
// }
log.info("LookAheadDiffConst:parseTerm:Div:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if (!b.eval().equalsIgnoreCase("1.0")) {
x = (() -> a.eval() + "/" + b.eval());
if (MathsOpType.equalsIgnoreCase("Integration")) {
LastLADiffConstCoeffAidPos = posIntegr + posLADiff;
}
log.info("LookAheadDiffConst:parseTerm:Div:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
}
if ((chLADiff == '+') || (chLADiff == '-')) {
log.info("LookAheadDiffConst:parseTerm:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
return x;
} else if ((chLADiff != -1) && (chLADiff != 0)) {
SyncLADiff();
}
log.info("LookAheadDiffConst:parseTerm:x.eval()=" + x.eval() + " LADiffFactorOperator=" + (char) LADiffFactorOperator + " DiffTermOperator=" + (char) DiffTermOperator + " LastLADiffConstCoeffAidPos=" + LastLADiffConstCoeffAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else {
return x;
}
}
}
LookAheadDiffConst parseFactor() {
LookAheadDiffConst x = (() -> "1.0");
x = parseBase();
log.info("LookAheadDiffConst:parseFactor:After Initial Call:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
for (;;) {
if (eatLADiff('^')) { // exponentiation
LookAheadDiffConst a = x, b = parseBase();
log.info("LookAheadDiffConst:parseFactor:b.eval()=" + b.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
if ((IsAConstant(a.eval(), DiffWithRespTo)) && (!a.eval().equalsIgnoreCase("1.0"))
&& (IsAConstant(b.eval(), DiffWithRespTo)) && (!b.eval().equalsIgnoreCase("1.0"))) {
// 2^3
x = (() -> "" + (Math.pow(Double.parseDouble(a.eval()), Double.parseDouble(b.eval()))));
log.info("LookAheadDiffConst:parseFactor:Rule1:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((IsAConstant(a.eval(), DiffWithRespTo)) && (!a.eval().equalsIgnoreCase("1.0"))
&& (!IsAConstant(b.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstant"))) {
// 2^a
x = (() -> a.eval() + "^" + b.eval());
log.info("LookAheadDiffConst:parseFactor:Rule2:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((IsAConstant(a.eval(), DiffWithRespTo)) && (!a.eval().equalsIgnoreCase("1.0"))
&& ((!IsAConstant(b.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("Var")))
|| ((IsAConstant(b.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("Number")) && (b.eval().equalsIgnoreCase("1.0")))) {
// 2^x
x = (() -> "1.0");
log.info("LookAheadDiffConst:parseFactor:Rule3:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((!IsAConstant(a.eval(), DiffWithRespTo))
&& (!IsAConstant(b.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstant"))) {
// a^b
x = (() -> a.eval() + "^" + b.eval());
log.info("LookAheadDiffConst:parseFactor:Rule4:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((!IsAConstant(a.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("Var"))
&& (!IsAConstant(b.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstant"))) {
// x^b
//x = (() -> "1");
log.info("LookAheadDiffConst:parseFactor:Rule5:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((!IsAConstant(a.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstant"))
&& (!IsAConstant(b.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("Var"))) {
// a^x
//x = (() -> "1");
log.info("LookAheadDiffConst:parseFactor:Rule6:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((!IsAConstant(a.eval(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstant"))
&& (IsAConstant(b.eval(), DiffWithRespTo)) && (!b.eval().equalsIgnoreCase("1.0"))) {
// a^2
TermOutputIndConst += Double.parseDouble(b.eval());
x = (() -> a.eval() + "^" + b.eval());
TermOutputSetFlag = true;
log.info("LookAheadDiffConst:parseFactor:Rule7:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
}
log.info("LookAheadDiffConst:parseFactor:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else {
log.info("LookAheadDiffConst:parseFactor:ReturnValue:x.eval()=" + x.eval() + " DiffTermOperator=" + (char) DiffTermOperator + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
return x;
}
}
}
LookAheadDiffConst parseBase() {
int startPos = posLADiff;
LookAheadDiffConst x = (() -> "1.0");
if (eatLADiff('-')) { // unary minus
LookAheadDiffConst b = parseBase();
x = (() -> b.eval());
return x;
} else if (eatLADiff('+')) { // unary plus
x = parseBase();
return x;
}
if ((IsNumber(chLADiff))) { //numbers
log.info("LookAheadDiffConst:parseBase:Entered Numbers:posLADiff=" + posLADiff + " startPos=" + startPos + " chLADiff=" + (char) chLADiff);
int startPos1 = posLADiff;
if (startPos1 >= 0) ; else {
startPos1 = 0;
}
while ((IsNumber(chLADiff)) && (chLADiff != -1)) {
nextCharLADiff();
if ((chLADiff == 'E') || (chLADiff == 'e')) {
nextCharLADiff();
if ((chLADiff == '-') || (chLADiff == '+')) {
nextCharLADiff();
}
}
}
double xx = 1.0;
if ((posLADiff != -1) && (chLADiff != -1)) {
if ((IsAConstant(StrLADiff.substring(startPos1, posLADiff), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("Number"))) {
xx = Double.parseDouble(StrLADiff.substring(startPos1, posLADiff));
}
} else {
if ((IsAConstant(StrLADiff.substring(startPos1), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("Number"))) {
xx = Double.parseDouble(StrLADiff.substring(startPos1));
}
}
final Double XX = xx;
x = () -> "" + XX;
log.info("LookAheadDiffConst:parseBase:Number:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
return x;
} else if (IsVariable(chLADiff)) {//functions & variables
int startPos1 = posLADiff;
if (startPos1 >= 0) ; else {
startPos1 = 0;
}
while (((IsVariable(chLADiff)) || (IsNumber(chLADiff))) && (chLADiff != -1)) {
nextCharLADiff();
}
String TempVar = StrLADiff.substring(startPos1, posLADiff);
if ((!TempVar.equalsIgnoreCase(DiffWithRespTo)) && (!TempVar.equalsIgnoreCase("NaN")) && (!TempVar.equalsIgnoreCase("Infinity")) && (!functionsDiff.containsKey(TempVar))) {
ContainsIndConstFlag = true;
GotIndConstFlag = true;
GotIndConstPos = startPos1;
} else if ((ComplexAssignFlag == false)) {
GotVariablePos = startPos1;
GotVariableFlag = true;
ComplexAssignFlag = true;
}
// Got a Function
log.info("LookAheadDiffConst:parseBase:Before Function:TempVar=" + TempVar + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
if ((TempVar != null) && (!TempVar.equalsIgnoreCase("")) && (!TempVar.equalsIgnoreCase(DiffWithRespTo)) && (!TempVar.equalsIgnoreCase("NaN")) && (!TempVar.equalsIgnoreCase("Infinity")) && (functionsDiff.containsKey(TempVar))) {
log.info("LookAheadDiffConst:parseBase:Function:TempVar=" + TempVar + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
if (chLADiff == '(') {
//x = parseBase();
if (chLADiff == '(') {
eatLADiff('(');
} else {
while ((chLADiff > -1) && (chLADiff != '(')) {
nextCharLADiff();
}
eatLADiff('(');
}
int openBracesCount = 1;
int closeBracesCount = 0;
int startcount = posLADiff;
while ((posLADiff < StrLADiff.length()) && ((chLADiff != ')') || (openBracesCount != closeBracesCount))) {
nextCharLADiff();
if (chLADiff == '(') {
openBracesCount++;
}
if (chLADiff == ')') {
closeBracesCount++;
}
}
eatLADiff(')');
log.info("LookAheadDiffConst:parseBase:(: Expression=" + StrLADiff.substring(startPos, posLADiff) + " :x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
String TempExprn = StrLADiff.substring(startcount, posLADiff - 1);
if (IsAConstant(TempExprn, DiffWithRespTo)) {
final String TempExprnFullFunc = TempExprn;
x = () -> TempVar + "(" + TempExprnFullFunc + ")";
}
log.info("LookAheadDiffConst:parseBase:(: Function:x.eval()=" + x.eval() + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
return x;
}
} else if ((TempVar != null) && (!TempVar.equalsIgnoreCase("")) && (!TempVar.equalsIgnoreCase("NaN")) && (!TempVar.equalsIgnoreCase("Infinity")) && (!TempVar.equalsIgnoreCase(DiffWithRespTo))) {
final String MyStr = TempVar;
GotIndConstFlag = true;
LastLADiffIndConstAidPos = startPos1 - 1;
x = () -> MyStr;
log.info("LookAheadDiffConst:parseBase:Variable:TempVar=" + TempVar + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else if ((TempVar != null) && (!TempVar.equalsIgnoreCase("")) && ((TempVar.equalsIgnoreCase("NaN")) || (TempVar.equalsIgnoreCase("Infinity"))) && (!TempVar.equalsIgnoreCase(DiffWithRespTo))) {
final String MyStr = TempVar;
GotExtremityFlag = true;
LastLADiffExtremityAidPos = posLADiff;
x = () -> MyStr;
log.info("LookAheadDiffConst:parseBase:Variable:TempVar=" + TempVar + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff);
} else {
if ((!TempVar.equalsIgnoreCase(DiffWithRespTo)) && (LastLADiffIndConstAidPos == -1)) {
LastLADiffIndConstAidPos = startPos1 - 1;
}
x = () -> "1.0";
}
log.info("LookAheadDiffConst:parseBase:Variable:x.eval()=" + x.eval() + " LastLADiffIndConstAidPos=" + LastLADiffIndConstAidPos + " posLADiff=" + posLADiff + " chLADiff=" + (char) chLADiff + " ComplexAssignFlag=" + ComplexAssignFlag + " GotVariableFlag=" + GotVariableFlag + " GotVariablePos=" + GotVariablePos + " GotIndConstFlag=" + GotIndConstFlag);
return x;
} else if (chLADiff == '(') {
nextCharLADiff();
return x;
} else if (chLADiff == ')') {
nextCharLADiff();
return x;
} else {
if ((StrLADiff != null) && (startPos < StrLADiff.length()) && (startPos < posLADiff) && (chLADiff != -1) && (chLADiff != 0)) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "LookAheadConst:parseBase:Unexpected: " + (char) chLADiff + " int=" + (int) chLADiff + " Cannot Format:" + StrLADiff.substring(posLADiff, StrLADiff.length()));
} else if ((chLADiff != -1) && (chLADiff != 0) && (posLADiff >= 1) && (posLADiff < StrLADiff.length()) && (IsNumber(chLADiff))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "LookAheadConst:parseBase:Please Check Code:Should NOT reach Here:Unexpected: " + (char) chLADiff + " int=" + (int) chLADiff + " Cannot Format:" + StrLADiff.substring(posLADiff, StrLADiff.length()));
} else if ((chLADiff != -1) && (chLADiff != 0) && (posLADiff >= 1) && (posLADiff < StrLADiff.length()) && (IsOperator(chLADiff))) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "LookAheadConst:parseBase:Please Check Equation Operators:Should NOT reach Here:Unexpected: " + (char) chLADiff + " int=" + (int) chLADiff + " Cannot Format:" + StrLADiff.substring(posLADiff, StrLADiff.length()));
} else if ((chLADiff != -1) && (chLADiff != 0) && (posLADiff >= 1) && (posLADiff < StrLADiff.length())) {
throw new RuntimeException(StageMapping + ":" + TestCase + ":Order=" + Order + "LookAheadConst:parseBase:Unexpected: " + (char) chLADiff + " int=" + (int) chLADiff + " Cannot Format:" + StrLADiff.substring(posLADiff, StrLADiff.length()));
}
return x;
}
}
}.parseLADiff();
}
@FunctionalInterface
public interface DiffExpr {
String DiffExpr();
}
public static DiffExpr parseDiff(String str, Map<String, Double> variables, String DiffWithRespTo) {
return new Object() {
boolean ParanExprInProgressFlag = false;
DiffExpr parseDiffExpr() {
DiffExpr x = (() -> "");
ResetVars("DiffExpr");
StrDiff = str;
if ((StrDiff == null) || (StrDiff.equalsIgnoreCase(""))) {
return x;
}
posDiff = 0;
chDiff = StrDiff.charAt(0);
int oldch = chDiff;
if ((IsVariable(chDiff)) || (IsNumber(chDiff))) {
oldch = 0;
} else if ((chDiff == '-') || (chDiff == '+')) {
posDiff = posDiff + 1;
chDiff = StrDiff.charAt(1);
}
if ((StrDiff != null) && (StrDiff.length() > 0)
&& (StrDiff.length() < 2)
&& ((chDiff == '*')
|| (chDiff == '/')
|| (chDiff == '^'))) {
return x;
} else {
x = parseExpressionDiff();//parseParaDiff();
}
log.info("Diff:parseDiff:Final:x.DiffExpr()=" + x.DiffExpr());
if ((oldch == '-') && (x.DiffExpr().startsWith("-"))) {
final String FinalOutput = x.DiffExpr().replaceFirst("-", "");
x = (() -> FinalOutput);
} else if ((oldch == '-') && (!x.DiffExpr().startsWith("-"))) {
final String FinalOutput = x.DiffExpr();
final int MySignInt = oldch;
x = (() -> (char) MySignInt + FinalOutput);
}
// if (x.DiffExpr().contains("--")) {
// String OutputExprn = x.DiffExpr().replaceAll("\\--", "-");
// final String FinalOutput = OutputExprn;
// x = (() -> FinalOutput);
// }
// if (x.DiffExpr().contains("+-")) {
// String OutputExprn = x.DiffExpr().replaceAll("\\+-", "-");
// final String FinalOutput = OutputExprn;
// x = (() -> FinalOutput);
// }
return x;
}
//Grammar:
//expression = term | expression '+' term |expression '-' term
//term = factor | term '*' factor | term '/' factor
//factor = base | base ^ base
//base = '-' base | '+' base | number | identifier |function expression | '(' expression ')'
//
DiffExpr parseExpressionDiff() {
int ExprStartPos = posDiff;
int ExprEndPos = -1;
int startpos = posDiff;
DiffTermOperator = -1;
DiffExpr x = parseTermDiff();
int endpos = posDiff;
String xExprn = "";
String OutputExprn = "";
if ((startpos != -1) && (endpos != -1) && (startpos < endpos) && (startpos <= StrDiff.length()) && (startpos < StrDiff.length()) && (endpos <= StrDiff.length())) {
xExprn = StrDiff.substring(startpos, endpos);
}
OutputExprn = x.DiffExpr();
log.info("Diff:parseExpressionDiff:Initial Call to parseTermDiff:OutputExprn=" + OutputExprn);
log.info("Diff:parseExpressionDiff:Initial Call to parseTermDiff:xExprn=" + xExprn);
if ((IsAConstant(OutputExprn, DiffWithRespTo)) && (IsAConstant(xExprn, DiffWithRespTo)) && ((chDiff == '+') || (chDiff == '-') || (chDiff == -1))) {
log.info("Diff:parseExpressionDiff:Mapping 0.0:Got a Constant Value from parseTermDiff:OutputExprn=" + OutputExprn);
OutputExprn = "0.0";
final String Output = OutputExprn;
x = (() -> Output);
xExprn = Output;
} else if ((!IsAConstant(OutputExprn, DiffWithRespTo))
&& ((StrIsAConstant.equalsIgnoreCase("IndConstantExpression"))
|| (StrIsAConstant.equalsIgnoreCase("IndConstant")))
&& (!IsAConstant(xExprn, DiffWithRespTo))
&& ((StrIsAConstant.equalsIgnoreCase("IndConstantExpression"))
|| (StrIsAConstant.equalsIgnoreCase("IndConstant")))
&& ((chDiff == '+') || (chDiff == '-') || (chDiff == -1))) {
log.info("Diff:parseExpressionDiff:Mapping 0.0:Got a Constant Value from parseTermDiff:OutputExprn=" + OutputExprn);
if (!OutputExprn.endsWith("*0.0")) {
OutputExprn = OutputExprn + "*" + "0.0";
}
final String Output = OutputExprn;
x = (() -> Output);
xExprn = Output;
} else if ((OutputExprn.equalsIgnoreCase(DiffWithRespTo)) || (OutputExprn.equalsIgnoreCase("1.0")) && ((chDiff == '+') || (chDiff == '-') || (chDiff == -1))) {
OutputExprn = "1.0";
if (xExprn.equalsIgnoreCase("-" + DiffWithRespTo)) {
final String Output = "-" + OutputExprn;
x = (() -> Output);
xExprn = Output;
} else {
final String Output = OutputExprn;
x = (() -> Output);
xExprn = Output;
}
log.info("Diff:parseExpressionDiff:Mapping 1.0:Got a " + DiffWithRespTo + " from parseTermDiff:OutputExprn=" + OutputExprn + " x.DiffExpr()=" + x.DiffExpr() + " xExprn=" + xExprn);
} else if ((OutputExprn.equalsIgnoreCase("")) || (xExprn.equalsIgnoreCase("")) && ((chDiff == '+') || (chDiff == '-') || (chDiff == -1))) {
log.info("Diff:parseExpressionDiff:Mapping 0.0:Got a Constant Value from parseTermDiff:OutputExprn=" + OutputExprn);
OutputExprn = "0.0";
final String Output = OutputExprn;
x = (() -> Output);
xExprn = Output;
} else {
final String Output = OutputExprn;
x = (() -> Output);
xExprn = Output;
}
log.info("Diff:parseExpressionDiff:Initial Call to parseTermDiff:x.DiffExpr()=" + x.DiffExpr() + " chDiff=" + (char) chDiff + " chDiff=" + chDiff + " posDiff=" + posDiff);
for (;;) {
DiffTermOperator = -1;
ContainsXFlag = false;
if ((eatDiff('+')) && ((NormalExprnFlag == true) || (NormalNotPareFlag == true) || (ParenthesisFlag == true) || (FuncArgFlag == true))) {// addition
log.info("Diff:parseExpressionDiff:+ Entered");
int bstartpos = posDiff;
DiffExpr a = x, b = parseTermDiff();
String bExprn = "";
int bendpos = posDiff;
if ((bstartpos != -1) && (bendpos != -1) && (bstartpos < bendpos) && (bstartpos <= StrDiff.length()) && (bstartpos < StrDiff.length()) && (bendpos <= StrDiff.length())) {
bExprn = StrDiff.substring(bstartpos, bendpos);
}
log.info("Diff:parseExpressionDiff:b.DiffExpr()=" + b.DiffExpr());
log.info("Diff:parseExpressionDiff:bExprn=" + bExprn);
if (((IsAConstant(b.DiffExpr(), DiffWithRespTo))
&& (!b.DiffExpr().contains(DiffWithRespTo))
&& (b.DiffExpr().equalsIgnoreCase(bExprn)))
|| (b.DiffExpr().equalsIgnoreCase(""))) {
b = (() -> "0.0");
bExprn = "0.0";
} else if (!(IsAConstant(b.DiffExpr(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstantExpression")) && (!b.DiffExpr().contains(DiffWithRespTo)) && (b.DiffExpr().equalsIgnoreCase(bExprn))) {
final String Temp = b.DiffExpr();
if (!Temp.endsWith("*0.0")) {
b = (() -> Temp + "*" + "0.0");
bExprn = Temp + "*" + "0.0";
} else {
b = (() -> Temp);
bExprn = Temp;
}
} else if ((!b.DiffExpr().equalsIgnoreCase(bExprn)) && ((b.DiffExpr().equalsIgnoreCase(DiffWithRespTo)) || (b.DiffExpr().equalsIgnoreCase("1.0"))))
;//Do Nothing as b.DiffExpr() has the value(the Coeff of x)
else if ((b.DiffExpr().equalsIgnoreCase(DiffWithRespTo)) || (b.DiffExpr().equalsIgnoreCase("1.0"))) {
b = (() -> "1.0");
bExprn = "1.0";
}
log.info("Diff:parseExpressionDiff:b.DiffExpr()=" + b.DiffExpr());
log.info("Diff:parseExpressionDiff:bExprn=" + bExprn);
log.info("Diff:parseExpressionDiff:xExprn=" + xExprn);
if (a.DiffExpr().contains("Parenthesis")) {
Expr_Func_Split(a.DiffExpr(), DiffWithRespTo);
final String ParaExprA = ParanExpr;
final String ParaExprDiffExprA = ParanDiffExpr;
a = (() -> ParaExprDiffExprA);
}
if (b.DiffExpr().contains("Parenthesis")) {
Expr_Func_Split(b.DiffExpr(), DiffWithRespTo);
final String ParaExprB = ParanExpr;
final String ParaExprDiffExprB = ParanDiffExpr;
b = (() -> ParaExprDiffExprB);
}
DiffTermOperator = -1;
x = ApplyLambdaRules("parseExpressionDiff", xExprn, a, "", b, "", "", "+", "SumRule", DiffWithRespTo, DiffTermOperator, "LowLevelRules");
xExprn = ApplyLambdaString("parseExpressionDiff", xExprn, a, "", b, "", "", "+", "SumRule", DiffWithRespTo, DiffTermOperator, "LowLevelRules");
log.info("Diff:parseExpressionDiff::a.DiffExpr()=" + a.DiffExpr());
log.info("Diff:parseExpressionDiff::b.DiffExpr()=" + b.DiffExpr());
log.info("Diff:parseExpressionDiff::x.DiffExpr()=" + x.DiffExpr());
log.info("Diff:parseExpressionDiff::xExprn=" + xExprn);
} else if ((eatDiff('-')) && ((NormalExprnFlag == true) || (NormalNotPareFlag == true) || (ParenthesisFlag == true) || (FuncArgFlag == true))) { // subtraction
log.info("Diff:parseExpressionDiff:- Entered");
int bstartpos = posDiff;
DiffExpr a = x, b = parseTermDiff();
int bendpos = posDiff;
String bExprn = "";
if ((bstartpos != -1) && (bendpos != -1) && (bstartpos < bendpos) && (bstartpos <= StrDiff.length()) && (bstartpos < StrDiff.length()) && (bendpos <= StrDiff.length())) {
bExprn = StrDiff.substring(bstartpos, bendpos).trim();
}
log.info("Diff:parseExpressionDiff:b.DiffExpr()=" + b.DiffExpr());
log.info("Diff:parseExpressionDiff:bExprn=" + bExprn);
log.info("Diff:parseExpressionDiff:xExprn=" + xExprn);
if ((IsAConstant(b.DiffExpr(), DiffWithRespTo))
&& (!b.DiffExpr().contains(DiffWithRespTo))
&& (b.DiffExpr().equalsIgnoreCase(bExprn))
|| (b.DiffExpr().equalsIgnoreCase(""))) {
b = (() -> "0.0");
bExprn = "0.0";
} else if (!(IsAConstant(b.DiffExpr(), DiffWithRespTo)) && (StrIsAConstant.equalsIgnoreCase("IndConstant")) && (!b.DiffExpr().contains(DiffWithRespTo)) && (b.DiffExpr().equalsIgnoreCase(bExprn))) {
if (((b.DiffExpr().equalsIgnoreCase("Infinity")) || (b.DiffExpr().equalsIgnoreCase("NaN"))) && (b.DiffExpr().equalsIgnoreCase(bExprn))) {
final String Temp = b.DiffExpr();
b = (() -> Temp);
bExprn = Temp;
} else {
final String Temp = bExprn;
if (!Temp.endsWith("*0.0")) {
b = (() -> Temp + "*" + "0.0");