ru.biosoft.math.model
Class DefaultParserContext

java.lang.Object
  ru.biosoft.math.model.DefaultParserContext

All Implemented Interfaces:

ParserContext

public class DefaultParserContext

extends java.lang.Object

implements ParserContext

Field Summary

static java.lang.String	ABS
static java.lang.String	ACOS
static java.lang.String	AND
static java.lang.String	ARCCOSH
static java.lang.String	ARCCOT
static java.lang.String	ARCCOTH
static java.lang.String	ARCCSCH
static java.lang.String	ARCSCS
static java.lang.String	ARCSEC
static java.lang.String	ARCSECH
static java.lang.String	ARCSINH
static java.lang.String	ARCTANH
static java.lang.String	ASIN
static java.lang.String	ASSIGNMENT
static java.lang.String	ATAN
static java.lang.String	CEIL
static java.lang.String	CONST_E
static java.lang.String	CONST_FALSE
static java.lang.String	CONST_PI
static java.lang.String	CONST_TRUE
protected java.util.HashMap	constantsMap
static java.lang.String	COS
static java.lang.String	COSH
static java.lang.String	COT
static java.lang.String	COTH
static java.lang.String	CSC
static java.lang.String	CSCH
static java.lang.String	DIFF
static java.lang.String	DIVIDE
static java.lang.String	EQ
static java.lang.String	EXP
static java.lang.String	FACTORIAL
static java.lang.String	FLOOR
protected java.util.HashMap	functionsMap
static java.lang.String	GEQ
static java.lang.String	GT
static java.lang.String	LEQ
static java.lang.String	LN
static java.lang.String	LOG
static java.lang.String	LT
static java.lang.String	MINUS
static java.lang.String	NEQ
static java.lang.String	NOT
static java.lang.String	OR Declares standard operators:
static java.lang.String	PLUS
static java.lang.String	POWER
static java.lang.String	ROOT
static java.lang.String	SEC
static java.lang.String	SECH
static java.lang.String	SIN
static java.lang.String	SINH
protected java.util.HashMap	substitutionMap
static java.lang.String	TAN
static java.lang.String	TANH
static java.lang.String	TIMES
static java.lang.String	UMINUS
protected java.util.HashMap	variablesMap
static java.lang.String	XOR

Constructor Summary

DefaultParserContext()

Method Summary

boolean	containsConstant(java.lang.String name)
boolean	containsVariable(java.lang.String name)
void	declareConstant(java.lang.String name, java.lang.Object value) Declares the constant.
void	declareFunction(Function function) Declares the function.
void	declareFunctionNameSubstitution(java.lang.String name, java.lang.String replaceBy)
static void	declareStandardConstants(ParserContext context) Declares standard constants: true, false, pi, ...
static void	declareStandardOperators(ParserContext context)
void	declareVariable(java.lang.String name, java.lang.Object value) Declares the variable.
java.lang.Object	getConstantValue(java.lang.String name) Returns the constant value or null if constant not declared.
Function	getFunction(java.lang.String name) Returns function or operator with the specified name or null if function is not declared.
ParserContext	getParentContext()
java.lang.Object	getVariableValue(java.lang.String name) Returns value of variable with the specified name or null if variable is not declared.
void	setParentContext(ParserContext parent)

Methods inherited from class java.lang.Object

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

Field Detail

CONST_TRUE

public static final java.lang.String CONST_TRUE

See Also:

Constant Field Values

CONST_FALSE

public static final java.lang.String CONST_FALSE

See Also:

Constant Field Values

CONST_PI

public static final java.lang.String CONST_PI

See Also:

Constant Field Values

CONST_E

public static final java.lang.String CONST_E

See Also:

Constant Field Values

constantsMap

protected java.util.HashMap constantsMap

variablesMap

protected java.util.HashMap variablesMap

substitutionMap

protected java.util.HashMap substitutionMap

functionsMap

protected java.util.HashMap functionsMap

OR

public static final java.lang.String OR

Declares standard operators:

See Also:

Constant Field Values

To do:

implement properly, declare operator names as constants

AND

public static final java.lang.String AND

See Also:

Constant Field Values

NOT

public static final java.lang.String NOT

See Also:

Constant Field Values

XOR

public static final java.lang.String XOR

See Also:

Constant Field Values

GT

public static final java.lang.String GT

See Also:

Constant Field Values

LT

public static final java.lang.String LT

See Also:

Constant Field Values

GEQ

public static final java.lang.String GEQ

See Also:

Constant Field Values

LEQ

public static final java.lang.String LEQ

See Also:

Constant Field Values

EQ

public static final java.lang.String EQ

See Also:

Constant Field Values

NEQ

public static final java.lang.String NEQ

See Also:

Constant Field Values

PLUS

public static final java.lang.String PLUS

See Also:

Constant Field Values

MINUS

public static final java.lang.String MINUS

See Also:

Constant Field Values

UMINUS

public static final java.lang.String UMINUS

See Also:

Constant Field Values

TIMES

public static final java.lang.String TIMES

See Also:

Constant Field Values

DIVIDE

public static final java.lang.String DIVIDE

See Also:

Constant Field Values

POWER

public static final java.lang.String POWER

See Also:

Constant Field Values

ROOT

public static final java.lang.String ROOT

See Also:

Constant Field Values

ABS

public static final java.lang.String ABS

See Also:

Constant Field Values

EXP

public static final java.lang.String EXP

See Also:

Constant Field Values

LN

public static final java.lang.String LN

See Also:

Constant Field Values

LOG

public static final java.lang.String LOG

See Also:

Constant Field Values

SIN

public static final java.lang.String SIN

See Also:

Constant Field Values

COS

public static final java.lang.String COS

See Also:

Constant Field Values

TAN

public static final java.lang.String TAN

See Also:

Constant Field Values

COT

public static final java.lang.String COT

See Also:

Constant Field Values

ASIN

public static final java.lang.String ASIN

See Also:

Constant Field Values

ACOS

public static final java.lang.String ACOS

See Also:

Constant Field Values

ATAN

public static final java.lang.String ATAN

See Also:

Constant Field Values

ARCCOSH

public static final java.lang.String ARCCOSH

See Also:

Constant Field Values

ARCSINH

public static final java.lang.String ARCSINH

See Also:

Constant Field Values

ARCCOT

public static final java.lang.String ARCCOT

See Also:

Constant Field Values

ARCCOTH

public static final java.lang.String ARCCOTH

See Also:

Constant Field Values

ARCSCS

public static final java.lang.String ARCSCS

See Also:

Constant Field Values

ARCCSCH

public static final java.lang.String ARCCSCH

See Also:

Constant Field Values

ARCSEC

public static final java.lang.String ARCSEC

See Also:

Constant Field Values

ARCSECH

public static final java.lang.String ARCSECH

See Also:

Constant Field Values

ARCTANH

public static final java.lang.String ARCTANH

See Also:

Constant Field Values

COSH

public static final java.lang.String COSH

See Also:

Constant Field Values

COTH

public static final java.lang.String COTH

See Also:

Constant Field Values

CSC

public static final java.lang.String CSC

See Also:

Constant Field Values

CSCH

public static final java.lang.String CSCH

See Also:

Constant Field Values

SEC

public static final java.lang.String SEC

See Also:

Constant Field Values

SECH

public static final java.lang.String SECH

See Also:

Constant Field Values

SINH

public static final java.lang.String SINH

See Also:

Constant Field Values

TANH

public static final java.lang.String TANH

See Also:

Constant Field Values

DIFF

public static final java.lang.String DIFF

See Also:

Constant Field Values

ASSIGNMENT

public static final java.lang.String ASSIGNMENT

See Also:

Constant Field Values

FLOOR

public static final java.lang.String FLOOR

See Also:

Constant Field Values

CEIL

public static final java.lang.String CEIL

See Also:

Constant Field Values

FACTORIAL

public static final java.lang.String FACTORIAL

See Also:

Constant Field Values

Constructor Detail

DefaultParserContext

public DefaultParserContext()

Method Detail

getParentContext

public ParserContext getParentContext()

setParentContext

public void setParentContext(ParserContext parent)

containsConstant

public boolean containsConstant(java.lang.String name)

Specified by:

containsConstant in interface ParserContext

getConstantValue

public java.lang.Object getConstantValue(java.lang.String name)

Description copied from interface: ParserContext

Returns the constant value or null if constant not declared.

Specified by:

getConstantValue in interface ParserContext

declareConstant

public void declareConstant(java.lang.String name,
                            java.lang.Object value)

Description copied from interface: ParserContext

Declares the constant.

Specified by:

declareConstant in interface ParserContext

declareStandardConstants

public static void declareStandardConstants(ParserContext context)

Declares standard constants: true, false, pi, ...

To do:

implement properly

containsVariable

public boolean containsVariable(java.lang.String name)

Specified by:

containsVariable in interface ParserContext

getVariableValue

public java.lang.Object getVariableValue(java.lang.String name)

Description copied from interface: ParserContext

Returns value of variable with the specified name or null if variable is not declared.

Specified by:

getVariableValue in interface ParserContext

declareVariable

public void declareVariable(java.lang.String name,
                            java.lang.Object value)

Description copied from interface: ParserContext

Declares the variable.

Specified by:

declareVariable in interface ParserContext

getFunction

public Function getFunction(java.lang.String name)

Description copied from interface: ParserContext

Returns function or operator with the specified name or null if function is not declared.

Specified by:

getFunction in interface ParserContext

declareFunction

public void declareFunction(Function function)

Description copied from interface: ParserContext

Declares the function.

Specified by:

declareFunction in interface ParserContext

declareFunctionNameSubstitution

public void declareFunctionNameSubstitution(java.lang.String name,
                                            java.lang.String replaceBy)

declareStandardOperators

public static void declareStandardOperators(ParserContext context)