org.matheclipse.parser.client.operator

Class ASTNodeFactory

java.lang.Object

org.matheclipse.parser.client.operator.ASTNodeFactory

All Implemented Interfaces:

IParserFactory

public class ASTNodeFactory
extends Object
implements IParserFactory

A factory for creating ASTNode objects.

Field Summary

Fields

Modifier and Type	Field and Description
static ASTNodeFactory	MMA_STYLE_FACTORY
static int	PLUS_PRECEDENCE
static int	POWER_PRECEDENCE
static int	TIMES_PRECEDENCE

Fields inherited from interface org.matheclipse.parser.client.ast.IParserFactory

DEFAULT_OPERATOR_CHARACTERS

Constructor Summary

Constructors

Constructor and Description
ASTNodeFactory() Create a default ASTNode factory.

Method Summary

Modifier and Type	Method and Description
static void	addOperator(Map<String,Operator> operatorMap, Map<String,ArrayList<Operator>> operatorTokenStartSet, String operatorStr, String headStr, Operator oper) Adds the operator.
FunctionNode	createAST(ASTNode headExpr) Creates a new function with no arguments from the given header expression .
ASTNode	createDouble(String doubleString) Create an double node from the given double value string.
FractionNode	createFraction(IntegerNode numerator, IntegerNode denominator) Create a "fractional" number.
FunctionNode	createFunction(SymbolNode head) Creates a new function with head head and 0 arguments.
FunctionNode	createFunction(SymbolNode head, ASTNode arg0) Creates a new function with head head and 1 argument.
FunctionNode	createFunction(SymbolNode head, ASTNode arg0, ASTNode arg1) Creates a new function with head head and 2 arguments.
static InfixOperator	createInfixOperator(String operatorStr, String headStr, int precedence, int grouping) Creates a new ASTNode object.
IntegerNode	createInteger(int intValue) Create an integer node from the given value.
IntegerNode	createInteger(String integerString, int numberFormat) Create an integer node from the given string.
PatternNode	createPattern(SymbolNode patternName, ASTNode check) Create a pattern from the given symbol node.
static PostfixOperator	createPostfixOperator(String operatorStr, String headStr, int precedence) Creates a new ASTNode object.
static PrefixOperator	createPrefixOperator(String operatorStr, String headStr, int precedence) Creates a new ASTNode object.
StringNode	createString(StringBuffer buffer) Create a string node from the scanned double quoted string.
SymbolNode	createSymbol(String symbolName) Create a symbol from the scanned identifier string.
Operator	get(String identifier) Get the operator for a given identifier string like Times, Plus, Sin,...
Map<String,Operator>	getIdentifier2OperatorMap() Get identifier to operator map.
Map<String,ArrayList<Operator>>	getOperator2ListMap() Gets the operator 2 list map.
String	getOperatorCharacters() Gets the operator characters.
List<Operator>	getOperatorList(String key) Get the operator-list for a given operator-string.
boolean	isValidIdentifier(String identifier) Check if the identifier name is valid.

Methods inherited from class java.lang.Object

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

Field Detail

PLUS_PRECEDENCE

public static final int PLUS_PRECEDENCE

See Also:

Constant Field Values

TIMES_PRECEDENCE

public static final int TIMES_PRECEDENCE

See Also:

Constant Field Values

POWER_PRECEDENCE

public static final int POWER_PRECEDENCE

See Also:

Constant Field Values

MMA_STYLE_FACTORY

public static final ASTNodeFactory MMA_STYLE_FACTORY

Constructor Detail

ASTNodeFactory

public ASTNodeFactory()

Create a default ASTNode factory.

Method Detail

addOperator

public static void addOperator(Map<String,Operator> operatorMap,
                               Map<String,ArrayList<Operator>> operatorTokenStartSet,
                               String operatorStr,
                               String headStr,
                               Operator oper)

Adds the operator.

Parameters:

operatorMap - the operator map

operatorTokenStartSet - the operator token start set

operatorStr - the operator str

headStr - the head str

operatorMap - the operator map

operatorTokenStartSet - the operator token start set

operatorStr - the operator str

oper - the oper

getOperatorCharacters

public String getOperatorCharacters()

Gets the operator characters.

Specified by:

getOperatorCharacters in interface IParserFactory

Returns:

the operator characters

getIdentifier2OperatorMap

public Map<String,Operator> getIdentifier2OperatorMap()

Get identifier to operator map.

Specified by:

getIdentifier2OperatorMap in interface IParserFactory

Returns:

the identifier 2 operator map

get

public Operator get(String identifier)

Get the operator for a given identifier string like Times, Plus, Sin,... Gets the.

Specified by:

get in interface IParserFactory

Parameters:

identifier - the identifier

Returns:

the operator

getOperator2ListMap

public Map<String,ArrayList<Operator>> getOperator2ListMap()

Gets the operator 2 list map.

Specified by:

getOperator2ListMap in interface IParserFactory

Returns:

the operator 2 list map

getOperatorList

public List<Operator> getOperatorList(String key)

Get the operator-list for a given operator-string. Gets the operator list.

Specified by:

getOperatorList in interface IParserFactory

Parameters:

key - the operator string

Returns:

the operator-list for a given operator string like *, +, ==...

createInfixOperator

public static InfixOperator createInfixOperator(String operatorStr,
                                                String headStr,
                                                int precedence,
                                                int grouping)

Creates a new ASTNode object.

Parameters:

operatorStr - the operator str

headStr - the head str

precedence - the precedence

grouping - the grouping

Returns:

the infix operator

createPrefixOperator

public static PrefixOperator createPrefixOperator(String operatorStr,
                                                  String headStr,
                                                  int precedence)

Creates a new ASTNode object.

Parameters:

operatorStr - the operator str

headStr - the head str

precedence - the precedence

Returns:

the prefix operator

createPostfixOperator

public static PostfixOperator createPostfixOperator(String operatorStr,
                                                    String headStr,
                                                    int precedence)

Creates a new ASTNode object.

Parameters:

operatorStr - the operator str

headStr - the head str

precedence - the precedence

Returns:

the postfix operator

createDouble

public ASTNode createDouble(String doubleString)

Create an double node from the given double value string. Creates a new ASTNode object.

Specified by:

createDouble in interface IParserFactory

Parameters:

doubleString - the double string

Returns:

the AST node

createFunction

public FunctionNode createFunction(SymbolNode head)

Creates a new function with head head and 0 arguments. Creates a new ASTNode object.

Specified by:

createFunction in interface IParserFactory

Parameters:

head - the head

Returns:

the function node

createFunction

public FunctionNode createFunction(SymbolNode head,
                                   ASTNode arg0)

Creates a new function with head head and 1 argument. Creates a new ASTNode object.

Specified by:

createFunction in interface IParserFactory

Parameters:

head - the head

arg0 - the arg 0

Returns:

the function node

createFunction

public FunctionNode createFunction(SymbolNode head,
                                   ASTNode arg0,
                                   ASTNode arg1)

Creates a new function with head head and 2 arguments. Creates a new ASTNode object.

Specified by:

createFunction in interface IParserFactory

Parameters:

head - the head

arg0 - the arg 0

arg1 - the arg 1

Returns:

the function node

createAST

public FunctionNode createAST(ASTNode headExpr)

Creates a new function with no arguments from the given header expression . Creates a new list with no arguments from the given header object .

Specified by:

createAST in interface IParserFactory

Parameters:

headExpr - the head expr

Returns:

the function node

createInteger

public IntegerNode createInteger(String integerString,
                                 int numberFormat)

Create an integer node from the given string. Creates a new ASTNode object.

Specified by:

createInteger in interface IParserFactory

Parameters:

integerString - the integer number represented as a String

numberFormat - the format of the number (usually 10)

Returns:

IInteger

createInteger

public IntegerNode createInteger(int intValue)

Create an integer node from the given value. Creates a new ASTNode object.

Specified by:

createInteger in interface IParserFactory

Parameters:

intValue - the integer number's value

Returns:

IInteger

createFraction

public FractionNode createFraction(IntegerNode numerator,
                                   IntegerNode denominator)

Create a "fractional" number. Creates a new ASTNode object.

Specified by:

createFraction in interface IParserFactory

Parameters:

numerator - numerator of the fractional number

denominator - denominator of the fractional number

Returns:

IFraction

createPattern

public PatternNode createPattern(SymbolNode patternName,
                                 ASTNode check)

Create a pattern from the given symbol node. Creates a new ASTNode object.

Specified by:

createPattern in interface IParserFactory

Parameters:

patternName - the pattern name

check - the check

Returns:

Object

createString

public StringNode createString(StringBuffer buffer)

Create a string node from the scanned double quoted string. Creates a new ASTNode object.

Specified by:

createString in interface IParserFactory

Parameters:

buffer - the buffer

Returns:

the string node

createSymbol

public SymbolNode createSymbol(String symbolName)

Create a symbol from the scanned identifier string. Creates a new ASTNode object.

Specified by:

createSymbol in interface IParserFactory

Parameters:

symbolName - the symbol name

Returns:

the symbol node

isValidIdentifier

public boolean isValidIdentifier(String identifier)

Check if the identifier name is valid. Checks if is valid identifier.

Specified by:

isValidIdentifier in interface IParserFactory

Parameters:

identifier - the currently parsed identifier

Returns:

false if the identifier is not valid (in this case the parser creates a SyntaxError exception); otherwise return true