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simplify feature changes

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This commit is contained in:
Sergey Solovyev 2011-10-20 15:59:24 +04:00
parent 1b581304c6
commit 6f4eaec0d4
12 changed files with 217 additions and 40 deletions
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6
src/main/java/org/solovyev/android/calculator/jscl/FromJsclNumericTextProcessor.java
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@ -32,10 +32,10 @@ class FromJsclNumericTextProcessor implements TextProcessor<String> {
result = String.valueOf(roundedValue);
}
} catch (NumberFormatException e) {
result = result.replace(MathType.INFINITY_DEF, MathType.INFINITY);
if (result.contains(MathType.IMAGINARY_NUMBER_DEF)) {
result = result.replace(MathType.INFINITY_JSCL, MathType.INFINITY);
if (result.contains(MathType.IMAGINARY_NUMBER_JSCL)) {
try {
result = createResultForComplexNumber(result.replace(MathType.IMAGINARY_NUMBER_DEF, MathType.IMAGINARY_NUMBER));
result = createResultForComplexNumber(result.replace(MathType.IMAGINARY_NUMBER_JSCL, MathType.IMAGINARY_NUMBER));
} catch (NumberFormatException e1) {
// throw original one
throw new ParseException(e);

3
src/main/java/org/solovyev/android/calculator/jscl/JsclOperation.java
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@ -8,11 +8,12 @@ package org.solovyev.android.calculator.jscl;
import org.jetbrains.annotations.NotNull;
import org.solovyev.android.calculator.model.DummyTextProcessor;
import org.solovyev.android.calculator.model.FromJsclSimplifyTextProcessor;
import org.solovyev.android.calculator.model.TextProcessor;
public enum JsclOperation {
simplify(DummyTextProcessor.instance),
simplify(new FromJsclSimplifyTextProcessor()),
elementary(DummyTextProcessor.instance),
importCommands(DummyTextProcessor.instance),
numeric(new FromJsclNumericTextProcessor());

12
src/main/java/org/solovyev/android/calculator/math/Functions.java
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@ -31,20 +31,20 @@ public class Functions {
public final static String TANH = "tanh";
public final static String ATAN = "atan";
public final static String ATANH = "atanh";
public final static String LOG = "log";
public final static String LN = "ln";
public final static String LN_JSCL = "log";
public final static String MOD = "mod";
public final static String EXP = "exp";
public final static String SQRT_SIGN = "√";
public final static String SQRT = "sqrt";
public final static String E = "E";
public final static String E_POWER = "10^";
public final static String SQRT = "√";
public final static String SQRT_JSCL = "sqrt";
public static final List<String> allPrefix;
static {
final List<String> functions = new ArrayList<String>(Arrays.asList(SIN, SINH, ASIN, ASINH, COS, COSH, ACOS, ACOSH, TAN, TANH, ATAN, ATANH, LOG, LN, MOD, SQRT, SQRT_SIGN, EXP, E));
final List<String> functions = new ArrayList<String>(Arrays.asList(SIN, SINH, ASIN, ASINH, COS, COSH, ACOS, ACOSH, TAN, TANH, ATAN, ATANH, LN, LN_JSCL, MOD, SQRT, SQRT_JSCL, EXP));
Collections.sort(functions, new MathEntityComparator());
allPrefix = functions;
}

16
src/main/java/org/solovyev/android/calculator/math/MathType.java
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@ -19,8 +19,9 @@ import static org.solovyev.common.utils.CollectionsUtils.get;
public enum MathType {
digit,
constant,
dot,
power_10,
constant,
function,
postfix_function,
unary_operation,
@ -30,13 +31,16 @@ public enum MathType {
close_group_symbol,
text;
public final static Character POWER_10 = 'E';
public final static String POWER_10_JSCL = "10^";
public static final String IMAGINARY_NUMBER = "i";
public static final String IMAGINARY_NUMBER_DEF = "sqrt(-1)";
public static final String IMAGINARY_NUMBER_JSCL = "sqrt(-1)";
public static final String PI = "π";
public static final String E = "e";
public final static String NAN = "NaN";
public final static String INFINITY = "∞";
public final static String INFINITY_DEF = "Infinity";
public final static String INFINITY_JSCL = "Infinity";
public static final List<String> constants = Arrays.asList(E, PI, IMAGINARY_NUMBER, NAN, INFINITY);
@ -44,6 +48,7 @@ public enum MathType {
public static final List<Character> dots = Arrays.asList('.');
public static final List<Character> unaryOperations = Arrays.asList('-', '=', '!');
public static final List<Character> binaryOperations = Arrays.asList('-', '+', '*', '×', '∙', '/', '^');
@ -88,6 +93,11 @@ public enum MathType {
return new Result(dot, String.valueOf(foundCharacter));
}
foundCharacter = characterStartWithFinder.isFound(POWER_10) ? POWER_10 : null;
if (foundCharacter != null) {
return new Result(power_10, String.valueOf(foundCharacter));
}
foundCharacter = get(postfixFunctions, characterStartWithFinder);
if (foundCharacter != null) {
return new Result(postfix_function, String.valueOf(foundCharacter));

2
src/main/java/org/solovyev/android/calculator/model/DummyTextProcessor.java
View File

@ -20,6 +20,6 @@ public enum DummyTextProcessor implements TextProcessor<String> {
@NotNull
@Override
public String process(@NotNull String s) throws ParseException {
return s.replace(ToJsclTextProcessor.SPECIAL_STRING, "");
return s;
}
}

96
src/main/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessor.java Normal file
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@ -0,0 +1,96 @@
package org.solovyev.android.calculator.model;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.solovyev.android.calculator.StartsWithFinder;
import org.solovyev.android.calculator.math.MathType;
import org.solovyev.common.utils.CollectionsUtils;
import org.solovyev.common.utils.Finder;
/**
* User: serso
* Date: 10/20/11
* Time: 2:59 PM
*/
public class FromJsclSimplifyTextProcessor implements TextProcessor<String> {
@NotNull
@Override
public String process(@NotNull String s) throws ParseException {
final StringBuilder sb = new StringBuilder();
MathType.Result mathTypeResult = null;
StringBuilder numberBuilder = null;
String number = null;
for (int i = 0; i < s.length(); i++) {
char ch = s.charAt(i);
mathTypeResult = MathType.getType(s, i);
final MathType mathType = mathTypeResult.getMathType();
number = null;
if (mathType == MathType.digit || mathType == MathType.dot || mathType == MathType.power_10) {
if (numberBuilder == null) {
numberBuilder = new StringBuilder();
}
numberBuilder.append(mathTypeResult.getMatch());
} else {
if (numberBuilder != null) {
try {
number = numberBuilder.toString();
Double.valueOf(number);
} catch (NumberFormatException e) {
number = null;
}
numberBuilder = null;
}
}
replaceSystemVars(sb, number);
if (mathType == MathType.constant) {
sb.append(mathTypeResult.getMatch());
i += mathTypeResult.getMatch().length() - 1;
} else if (ch == '*') {
sb.append("×");
} else {
sb.append(ch);
}
}
if (numberBuilder != null) {
try {
number = numberBuilder.toString();
Double.valueOf(number);
} catch (NumberFormatException e) {
number = null;
}
numberBuilder = null;
}
replaceSystemVars(sb, number);
return sb.toString();
}
private void replaceSystemVars(StringBuilder sb, String number) {
if (number != null) {
final String finalNumber = number;
final Var var = CollectionsUtils.get(CalculatorEngine.instance.getVarsRegister().getSystemVars(), new Finder<Var>() {
@Override
public boolean isFound(@Nullable Var var) {
return var != null && finalNumber.equals(var.getValue());
}
});
if (var != null) {
sb.delete(sb.length() - number.length(), sb.length());
sb.append(var.getName());
}
}
}
}

5
src/main/java/org/solovyev/android/calculator/model/ParseException.java
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@ -14,6 +14,11 @@ import org.solovyev.common.exceptions.SersoException;
* Time: 9:25 PM
*/
public class ParseException extends SersoException {
public ParseException(String message) {
super(message);
}
public ParseException(Throwable cause) {
super(cause);
}

22
src/main/java/org/solovyev/android/calculator/model/ToJsclTextProcessor.java
View File

@ -21,11 +21,9 @@ import java.util.List;
class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
public static final String SPECIAL_STRING = "☀☀☀";
@Override
@NotNull
public PreparedExpression process(@NotNull String s) {
public PreparedExpression process(@NotNull String s) throws ParseException {
final StartsWithFinder startsWithFinder = new StartsWithFinder(s, 0);
final StringBuilder sb = new StringBuilder();
@ -44,6 +42,8 @@ class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
sb.append(')');
} else if (ch == '×' || ch == '∙') {
sb.append("*");
} else if (mathType == MathType.power_10) {
sb.append(MathType.POWER_10_JSCL);
} else if (mathType == MathType.function) {
sb.append(toJsclFunction(mathTypeResult.getMatch()));
i += mathTypeResult.getMatch().length() - 1;
@ -51,9 +51,10 @@ class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
// NOTE: fix for jscl for EMPTY functions processing (see tests)
startsWithFinder.setI(i + 1);
if ( i < s.length() && CollectionsUtils.get(MathType.groupSymbols, startsWithFinder) != null) {
i += 2;
throw new ParseException("Empty function: " + mathTypeResult.getMatch());
/*i += 2;
sb.append("(" + SPECIAL_STRING + ")");
mathTypeResult = new MathType.Result(MathType.close_group_symbol, ")");
mathTypeResult = new MathType.Result(MathType.close_group_symbol, ")");*/
}
} else if (mathType == MathType.constant) {
sb.append(mathTypeResult.getMatch());
@ -167,11 +168,9 @@ class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
final String result;
if (function.equals(Functions.LN)) {
result = Functions.LOG;
} else if (function.equals(Functions.SQRT_SIGN)) {
result = Functions.SQRT;
} else if (function.equals(Functions.E)) {
result = Functions.E_POWER;
result = Functions.LN_JSCL;
} else if (function.equals(Functions.SQRT)) {
result = Functions.SQRT_JSCL;
} else {
result = function;
}
@ -215,11 +214,14 @@ class ToJsclTextProcessor implements TextProcessor<PreparedExpression> {
if (mathTypeBefore == MathType.constant || (mathTypeBefore != MathType.binary_operation &&
mathTypeBefore != MathType.unary_operation &&
mathTypeBefore != MathType.power_10 &&
mathTypeBefore != MathType.function &&
mathTypeBefore != MathType.open_group_symbol)) {
if (mathType == MathType.constant) {
sb.append("*");
} else if (mathType == MathType.power_10) {
sb.append("*");
} else if (mathType == MathType.open_group_symbol && mathTypeBefore != null) {
sb.append("*");
} else if (mathType == MathType.digit && ((mathTypeBefore != MathType.digit && mathTypeBefore != MathType.dot) || mathTypeBefore == MathType.constant)) {

4
src/main/java/org/solovyev/android/calculator/model/VarsRegisterImpl.java
View File

@ -149,13 +149,13 @@ class VarsRegisterImpl implements VarsRegister {
builder = new Var.Builder(systemVarName, Math.PI);
varDescription = R.string.c_pi_description;
} else if (systemVarName.equals(MathType.IMAGINARY_NUMBER)) {
builder = new Var.Builder(systemVarName, MathType.IMAGINARY_NUMBER_DEF);
builder = new Var.Builder(systemVarName, MathType.IMAGINARY_NUMBER_JSCL);
varDescription = R.string.c_i_description;
} else if (systemVarName.equals(MathType.NAN)) {
builder = new Var.Builder(systemVarName, MathType.NAN);
varDescription = R.string.c_nan_description;
} else if (systemVarName.equals(MathType.INFINITY)) {
builder = new Var.Builder(systemVarName, MathType.INFINITY_DEF);
builder = new Var.Builder(systemVarName, MathType.INFINITY_JSCL);
varDescription = R.string.c_infinity_description;
} else {
throw new IllegalArgumentException(systemVarName + " is not supported yet!");

4
src/test/java/org/solovyev/android/calculator/model/CalculatorEngineTest.java
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@ -52,13 +52,13 @@ public class CalculatorEngineTest {
try {
cm.evaluate(JsclOperation.numeric, "cos(cos(cos(cos(acos(acos(acos(acos(acos(acos(acos(acos(cos(cos(cos(cos(cosh(acos(cos(cos(cos(cos(cos(acos(acos(acos(acos(acos(acos(acos(acos(cos(cos(cos(cos(cosh(acos(cos())))))))))))))))))))))))))))))))))))))");
Assert.fail();
} catch (EvalError e){
} catch (ParseException e){
}
Assert.assertEquals("NaN", cm.evaluate(JsclOperation.numeric, "ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(100)))))))))))))))"));
try {
cm.evaluate(JsclOperation.numeric, "cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos())))))))))))))))))))))))))))))))))))");
Assert.fail();
} catch (EvalError e){
} catch (ParseException e){
}
Assert.assertEquals("0.73909", cm.evaluate(JsclOperation.numeric, "cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(cos(1))))))))))))))))))))))))))))))))))))"));

32
src/test/java/org/solovyev/android/calculator/model/FromJsclSimplifyTextProcessorTest.java Normal file
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@ -0,0 +1,32 @@
package org.solovyev.android.calculator.model;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.solovyev.android.calculator.jscl.JsclOperation;
/**
* User: serso
* Date: 10/20/11
* Time: 3:43 PM
*/
public class FromJsclSimplifyTextProcessorTest {
@BeforeClass
public static void setUp() throws Exception {
CalculatorEngine.instance.init(null, null);
}
@Test
public void testProcess() throws Exception {
FromJsclSimplifyTextProcessor tp = new FromJsclSimplifyTextProcessor();
Assert.assertEquals("t11×e", tp.process("t11*2.718281828459045"));
Assert.assertEquals("e", tp.process("2.718281828459045"));
Assert.assertEquals("te×e", tp.process("t2.718281828459045*2.718281828459045"));
CalculatorEngine.instance.getVarsRegister().addVar(null, new Var.Builder("t2.718281828459045", "2"));
Assert.assertEquals("t2.718281828459045×e", tp.process("t2.718281828459045*2.718281828459045"));
}
}

55
src/test/java/org/solovyev/android/calculator/model/ToJsclTextProcessorTest.java
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@ -9,6 +9,7 @@ package org.solovyev.android.calculator.model;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.solovyev.android.calculator.jscl.JsclOperation;
/**
* User: serso
@ -26,19 +27,49 @@ public class ToJsclTextProcessorTest {
public void testProcess() throws Exception {
final ToJsclTextProcessor preprocessor = new ToJsclTextProcessor();
Assert.assertEquals( "sin(4)*cos(5)", preprocessor.process("sin(4)cos(5)"));
Assert.assertEquals( "3.141592653589793*sin(4)*3.141592653589793*cos(sqrt(5))", preprocessor.process("πsin(4)πcos(√(5))"));
Assert.assertEquals( "3.141592653589793*sin(4)+3.141592653589793*cos(sqrt(5))", preprocessor.process("πsin(4)+πcos(√(5))"));
Assert.assertEquals( "3.141592653589793*sin(4)+3.141592653589793*cos(sqrt(5+sqrt(-1)))", preprocessor.process("πsin(4)+πcos(√(5+i))"));
Assert.assertEquals( "3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))", preprocessor.process("πsin(4.01)+πcos(√(5+i))"));
Assert.assertEquals( "2.718281828459045^3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))"));
Assert.assertEquals( "2.718281828459045^3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))*10^2", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))E2"));
Assert.assertEquals( "2.718281828459045^3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))*10^-2", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))E-2"));
Assert.assertEquals( "log(foo)", preprocessor.process("ln()"));
Assert.assertEquals( "log(foo)*log(foo)", preprocessor.process("ln()ln()"));
Assert.assertEquals( "2.718281828459045*log(foo)*2.718281828459045*log(foo)*log(foo)*log(foo)*log(foo)*2.718281828459045", preprocessor.process("eln()eln()ln()ln()ln()e"));
Assert.assertEquals( "log(log(log(log(log(log(log(log(log(log(log(log(log(log(log(foo)))))))))))))))", preprocessor.process("ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln()))))))))))))))"));
Assert.assertEquals( "sin(4)*asin(0.5)*sqrt(2)", preprocessor.process("sin(4)asin(0.5)sqrt(2)").toString());
Assert.assertEquals( "sin(4)*cos(5)", preprocessor.process("sin(4)cos(5)").toString());
Assert.assertEquals( "3.141592653589793*sin(4)*3.141592653589793*cos(sqrt(5))", preprocessor.process("πsin(4)πcos(√(5))").toString());
Assert.assertEquals( "3.141592653589793*sin(4)+3.141592653589793*cos(sqrt(5))", preprocessor.process("πsin(4)+πcos(√(5))").toString());
Assert.assertEquals( "3.141592653589793*sin(4)+3.141592653589793*cos(sqrt(5+sqrt(-1)))", preprocessor.process("πsin(4)+πcos(√(5+i))").toString());
Assert.assertEquals( "3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))", preprocessor.process("πsin(4.01)+πcos(√(5+i))").toString());
Assert.assertEquals( "2.718281828459045^3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))").toString());
Assert.assertEquals( "2.718281828459045^3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))*10^2", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))E2").toString());
Assert.assertEquals( "2.718281828459045^3.141592653589793*sin(4.01)+3.141592653589793*cos(sqrt(5+sqrt(-1)))*10^-2", preprocessor.process("e^πsin(4.01)+πcos(√(5+i))E-2").toString());
Assert.assertEquals( "10^2", preprocessor.process("E2").toString());
Assert.assertEquals( "10^-2", preprocessor.process("E-2").toString());
Assert.assertEquals( "10^-1/2", preprocessor.process("E-1/2").toString());
Assert.assertEquals( "10^-1.2", preprocessor.process("E-1.2").toString());
Assert.assertEquals( "10^(-1.2)", preprocessor.process("E(-1.2)").toString());
Assert.assertEquals( "10^10^", preprocessor.process("EE").toString());
try {
preprocessor.process("ln()");
Assert.fail();
} catch (ParseException e) {
}
try {
preprocessor.process("ln()ln()");
Assert.fail();
} catch (ParseException e) {
}
try {
preprocessor.process("eln()eln()ln()ln()ln()e");
Assert.fail();
} catch (ParseException e) {
}
try {
preprocessor.process("ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln(ln()))))))))))))))");
Assert.fail();
} catch (ParseException e) {
}
try {
preprocessor.process("cos(cos(cos(cos(acos(acos(acos(acos(acos(acos(acos(acos(cos(cos(cos(cos(cosh(acos(cos(cos(cos(cos(cos(acos(acos(acos(acos(acos(acos(acos(acos(cos(cos(cos(cos(cosh(acos(cos())))))))))))))))))))))))))))))))))))))");
Assert.fail();
} catch (ParseException e) {
}
}
@Test