ptolemy.data.expr
Class PtParser

java.lang.Object
  ptolemy.data.expr.PtParser

All Implemented Interfaces:

PtParserConstants, PtParserTreeConstants

public class PtParser
extends java.lang.Object
implements PtParserTreeConstants, PtParserConstants

This file implements an expression parser for Ptolemy II using the JavaCC parser generator. It can handle all the basic arithmetic operators (*, /, +, -, %, ^), relational operators (<, <=, >, >=, == !=), logical operators(&&, ||, !), bitwise operators (&, |, #, ~) and, using reflection, all of the functionality available in the java.lang.Math package.

By editing the ASTFunctionNode file it is also relatively easy to allow references to other functions. This provides an easy mechanism to extend the range to the parser e.g. have a tcl(...) function that passes the string to a Tcl interpreter and retuns the result.

Functional if is supported via the following syntax: (boolean) ? (value1) : (value2)

Extensibility is also supported by allowing method calls on the Tokens, the syntax is (value1).method(comma separated arguments)

JavaCC by itself simply generates a file (and support files) that allow an input to be parsed, it does not return a parse tree. For the purposes of type checking we require a parse tree, and this is obtained using JJTree, a preprocessor for JavaCC.

JJtree operates by annotating the grammar file to support the generation of the parse tree. Thus the process is

X.jjt --> JJTREE --> X.jj --> JAVACC --> X.java + support files

The parser can also be passed a symbol table of ptolemy.data.expr.Variables which the expression to be parsed can reference.

Anything between quotes(") or apostrophes(') is taken to be one string. Strings are allowed to contain newlines or carriage returns. In addition, these characters, as well as other special characters, can be escaped using the standard Java syntax (\n, \t, \077, etc.).

The expressions recognized follow as close as possible the syntax of Java. In particular the operator precedences implemented here follow exactly those in Java. Any type conversions that are performed are lossless. If the user wants lossy conversions, explicit casts will be necessary.

Complex number are specified by an i or j after the imaginary part of the number. Long numbers are specified by an l or L after an integer number.

Users can register constants with the parser and also register classes where functions that may be called are defined. For a more thorough description of what the Parser is designed to do, please consult the Ptolemy II design document (or contact nsmyth@eecs)

Note that the parsers created by JavaCC generally have quite a bit of internal state. On the other hand, the parse trees generated by this parser are much smaller. It is also fairly cheap to traverse a parse tree in order to evaluate it. Thus it is usually preferable to cache parse trees and create a new parser when the cached parse tree becomes invalid.

Since:

Ptolemy II 1.0

Version:

$Id: PtParser.java 57046 2010-01-27 23:35:53Z cxh $

Author:

Neil Smyth, Steve Neuendorffer

See Also:

ASTPtBitwiseNode, ASTPtFunctionApplicationNode, ASTPtFunctionDefinitionNode, ASTPtFunctionalIfNode, ASTPtLeafNode, ASTPtLogicalNode, ASTPtMethodCallNode, ASTPtProductNode, ASTPtRelationalNode, ASTPtRootNode, ASTPtSumNode, ASTPtUnaryNode, Token

Accepted Rating:

Yellow (yuhong)

Proposed Rating:

Yellow (nsmyth)

Nested Class Summary

(package private) static class	PtParser.JJCalls
private static class	PtParser.LookaheadSuccess

Field Summary

private static boolean	_alreadyInitialized
private static java.util.List	_classesSearched
(package private) boolean	debug
private PtParser.JJCalls[]	jj_2_rtns
private int	jj_endpos
private java.util.Vector	jj_expentries
private int[]	jj_expentry
private int	jj_gc
private int	jj_gen
(package private) SimpleCharStream	jj_input_stream
private int	jj_kind
private int	jj_la
private int[]	jj_la1
private static int[]	jj_la1_0
private static int[]	jj_la1_1
private static int[]	jj_la1_2
private Token	jj_lastpos
private int[]	jj_lasttokens
private PtParser.LookaheadSuccess	jj_ls
Token	jj_nt
private int	jj_ntk
private boolean	jj_rescan
private Token	jj_scanpos
private boolean	jj_semLA
protected JJTPtParserState	jjtree
boolean	lookingAhead
Token	token
PtParserTokenManager	token_source

Fields inherited from interface ptolemy.data.expr.PtParserTreeConstants

jjtNodeName, JJTPTARRAYCONSTRUCTNODE, JJTPTASSIGNMENTNODE, JJTPTBITWISENODE, JJTPTFUNCTIONALIFNODE, JJTPTFUNCTIONAPPLICATIONNODE, JJTPTFUNCTIONDEFINITIONNODE, JJTPTLEAFNODE, JJTPTLOGICALNODE, JJTPTMATRIXCONSTRUCTNODE, JJTPTMETHODCALLNODE, JJTPTORDEREDRECORDCONSTRUCTNODE, JJTPTPOWERNODE, JJTPTPRODUCTNODE, JJTPTRECORDCONSTRUCTNODE, JJTPTRELATIONALNODE, JJTPTROOTNODE, JJTPTSHIFTNODE, JJTPTSUMNODE, JJTPTUNARYNODE, JJTPTUNIONCONSTRUCTNODE, JJTVOID

Fields inherited from interface ptolemy.data.expr.PtParserConstants

AND, BITWISE_NOT, BOOL_NOT, BOOLEAN, CLOSEBRACE, CLOSEBRACKET, CLOSEPAREN, CLOSEUNION, COLON, COMMA, COMPLEX, COND_AND, COND_OR, DECIMAL_LITERAL, DEFAULT, DIVIDE, DOUBLE, EOF, EQUALS, ERROR, EXPONENT, FUNCTION, GT, GTE, HEX_LITERAL, ID, INTEGER, INTEGER_FORMAT_SPEC, LETTER, LSHR, LT, LTE, MINUS, MODULO, MULTI_LINE_COMMENT, MultiLineCommentMode, MULTIPLY, NOTEQUALS, OCTAL_LITERAL, OPENBRACE, OPENBRACKET, OPENPAREN, OPENUNION, OR, PERIOD, PLUS, POWER, QUESTION, SEPARATOR, SETEQUALS, SHL, SHR, SINGLE_LINE_COMMENT, SingleLineCommentMode, SMBRACE, SMDOLLAR, SMDOLLARBRACE, SMDOLLARPAREN, SMID, SMIDBRACE, SMIDPAREN, SMLETTER, SMPAREN, SMSTRING, STRING, StringMode, StringModeIDBrace, StringModeIDNone, StringModeIDParen, tokenImage, XOR

Constructor Summary

PtParser()

PtParser(java.io.InputStream stream)

PtParser(java.io.InputStream stream, java.lang.String encoding)

PtParser(PtParserTokenManager tm)

PtParser(java.io.Reader stream)

Method Summary

private void	_initialize() Initialize the static variable containing the classes searched by the parser upon encountering a function call.
void	arrayConstruct()
void	assignment()
void	assignmentIdentifier()
void	bitwiseAnd()
void	bitwiseOr()
void	bitwiseXor()
void	disable_tracing()
void	element()
void	enable_tracing()
void	expression()
void	funcIf()
void	function()
void	functionDefinition()
java.util.Map	generateAssignmentMap(java.lang.String stringIn) Generates a parse tree from the given String.
ParseException	generateParseException()
ASTPtRootNode	generateParseTree(java.lang.String stringIn) Generates a parse tree from the given String.
ASTPtRootNode	generateSimpleAssignmentParseTree(java.lang.String stringIn) Generates a parse tree from the given String, which may optionally contain an assignment.
ASTPtRootNode	generateStringParseTree(java.lang.String stringIn) Generates a parse tree from the given String, which is interpreted in "String Mode" instead of as an operator expression.
Token	getNextToken()
static java.util.List	getRegisteredClasses() Return the list of classes the parser searches when a function call is encountered.
Token	getToken(int index)
java.util.LinkedList	getUndefinedList(java.lang.String stringIn) Deprecated. Use a visitor with a ParseTreeFreeVariableCollector instead.
void	identifier()
void	integer()
private boolean	jj_2_1(int xla)
private boolean	jj_2_10(int xla)
private boolean	jj_2_11(int xla)
private boolean	jj_2_12(int xla)
private boolean	jj_2_13(int xla)
private boolean	jj_2_14(int xla)
private boolean	jj_2_15(int xla)
private boolean	jj_2_16(int xla)
private boolean	jj_2_2(int xla)
private boolean	jj_2_3(int xla)
private boolean	jj_2_4(int xla)
private boolean	jj_2_5(int xla)
private boolean	jj_2_6(int xla)
private boolean	jj_2_7(int xla)
private boolean	jj_2_8(int xla)
private boolean	jj_2_9(int xla)
private boolean	jj_3_1()
private boolean	jj_3_10()
private boolean	jj_3_11()
private boolean	jj_3_12()
private boolean	jj_3_13()
private boolean	jj_3_14()
private boolean	jj_3_15()
private boolean	jj_3_16()
private boolean	jj_3_2()
private boolean	jj_3_3()
private boolean	jj_3_4()
private boolean	jj_3_5()
private boolean	jj_3_6()
private boolean	jj_3_7()
private boolean	jj_3_8()
private boolean	jj_3_9()
private boolean	jj_3R_25()
private boolean	jj_3R_26()
private boolean	jj_3R_27()
private boolean	jj_3R_28()
private boolean	jj_3R_29()
private boolean	jj_3R_30()
private boolean	jj_3R_31()
private boolean	jj_3R_32()
private boolean	jj_3R_33()
private boolean	jj_3R_34()
private boolean	jj_3R_35()
private boolean	jj_3R_36()
private boolean	jj_3R_37()
private boolean	jj_3R_38()
private boolean	jj_3R_39()
private boolean	jj_3R_40()
private boolean	jj_3R_41()
private boolean	jj_3R_42()
private boolean	jj_3R_43()
private boolean	jj_3R_44()
private boolean	jj_3R_45()
private boolean	jj_3R_46()
private boolean	jj_3R_47()
private boolean	jj_3R_48()
private boolean	jj_3R_49()
private boolean	jj_3R_50()
private boolean	jj_3R_51()
private boolean	jj_3R_52()
private boolean	jj_3R_53()
private boolean	jj_3R_54()
private boolean	jj_3R_55()
private boolean	jj_3R_56()
private boolean	jj_3R_57()
private boolean	jj_3R_58()
private boolean	jj_3R_59()
private boolean	jj_3R_60()
private boolean	jj_3R_61()
private boolean	jj_3R_62()
private boolean	jj_3R_63()
private boolean	jj_3R_64()
private boolean	jj_3R_65()
private boolean	jj_3R_66()
private boolean	jj_3R_67()
private boolean	jj_3R_68()
private boolean	jj_3R_69()
private boolean	jj_3R_70()
private void	jj_add_error_token(int kind, int pos)
private Token	jj_consume_token(int kind)
private static void	jj_la1_0()
private static void	jj_la1_1()
private static void	jj_la1_2()
private int	jj_ntk()
private void	jj_rescan_token()
private void	jj_save(int index, int xla)
private boolean	jj_scan_token(int kind)
void	logicalAnd()
void	logicalEquals()
void	logicalOr()
void	matrixConstruct()
void	nilArrayConstruct()
void	optTypeSpecifier()
void	orderedRecordConstruct()
void	power()
void	primaryElement()
void	recordConstruct()
static void	registerConstant(java.lang.String name, java.lang.Object value) Add a constant to the list of constants that the parser recognizes.
static void	registerFunctionClass(java.lang.String newClassName) Add a class to the list of classes that the parser searches when a function call is encountered.
void	ReInit(java.io.InputStream stream)
void	ReInit(java.io.InputStream stream, java.lang.String encoding)
void	ReInit(PtParserTokenManager tm)
void	ReInit(java.io.Reader stream)
void	relational()
void	shift()
ASTPtRootNode	start()
java.util.Map	startAssignmentList()
ASTPtRootNode	startSimpleAssignment()
ASTPtRootNode	startString()
void	stringModeElement()
void	stringModeString()
void	sum()
void	term()
void	unary()
void	unionConstruct()

Methods inherited from class java.lang.Object

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

Field Detail

jjtree

protected JJTPtParserState jjtree

debug

boolean debug

_alreadyInitialized

private static boolean _alreadyInitialized

_classesSearched

private static java.util.List _classesSearched

token_source

public PtParserTokenManager token_source

jj_input_stream

SimpleCharStream jj_input_stream

token

public Token token

jj_nt

public Token jj_nt

jj_ntk

private int jj_ntk

jj_scanpos

private Token jj_scanpos

jj_lastpos

private Token jj_lastpos

jj_la

private int jj_la

lookingAhead

public boolean lookingAhead

jj_semLA

private boolean jj_semLA

jj_gen

private int jj_gen

jj_la1

private final int[] jj_la1

jj_la1_0

private static int[] jj_la1_0

jj_la1_1

private static int[] jj_la1_1

jj_la1_2

private static int[] jj_la1_2

jj_2_rtns

private final PtParser.JJCalls[] jj_2_rtns

jj_rescan

private boolean jj_rescan

jj_gc

private int jj_gc

jj_ls

private final PtParser.LookaheadSuccess jj_ls

jj_expentries

private java.util.Vector jj_expentries

jj_expentry

private int[] jj_expentry

jj_kind

private int jj_kind

jj_lasttokens

private int[] jj_lasttokens

jj_endpos

private int jj_endpos

Constructor Detail

PtParser

public PtParser()

PtParser

public PtParser(java.io.InputStream stream)

PtParser

public PtParser(java.io.InputStream stream,
                java.lang.String encoding)

PtParser

public PtParser(java.io.Reader stream)

PtParser

public PtParser(PtParserTokenManager tm)

Method Detail

getUndefinedList

public java.util.LinkedList getUndefinedList(java.lang.String stringIn)
                                      throws IllegalActionException

Deprecated. Use a visitor with a ParseTreeFreeVariableCollector instead.

Returns the list of undefined variables after parsing the given String.

Parameters:

stringIn - The expression to be parsed

Returns:

The list of undefined variables.

Throws:

IllegalActionException - If the parse fails.

generateParseTree

public ASTPtRootNode generateParseTree(java.lang.String stringIn)
                                throws IllegalActionException

Generates a parse tree from the given String. The root node is returned. To evaluate the parse tree, use a ParseTreeEvaluator.

Parameters:

stringIn - The expression to be parsed.

Returns:

The root node of the parse tree.

Throws:

IllegalActionException - If the parse fails.

generateSimpleAssignmentParseTree

public ASTPtRootNode generateSimpleAssignmentParseTree(java.lang.String stringIn)
                                                throws IllegalActionException

Generates a parse tree from the given String, which may optionally contain an assignment. The root node is returned. If the string represents an assignment, then the toplevel node will be an ASTPtAssignmentNode.

Parameters:

stringIn - The expression to be parsed.

Returns:

The root node of the parse tree.

Throws:

IllegalActionException - If the parse fails.

generateStringParseTree

public ASTPtRootNode generateStringParseTree(java.lang.String stringIn)
                                      throws IllegalActionException

Generates a parse tree from the given String, which is interpreted in "String Mode" instead of as an operator expression. In string mode, the expression is a literal string, except for identifiers which are denoted by $param. The root node is returned. To evaluate the parse tree, use a ParseTreeEvaluator.

Parameters:

stringIn - The expression to be parsed.

Returns:

The root node of the parse tree.

Throws:

IllegalActionException - If the parse fails.

generateAssignmentMap

public java.util.Map generateAssignmentMap(java.lang.String stringIn)
                                    throws IllegalActionException

Generates a parse tree from the given String. The string will be parsed according to rules for assignment lists. The returned node is a RootNode containing one assignment node for each assignment in the expression.

Parameters:

stringIn - The expression to be parsed.

Returns:

The root node of the parse tree.

Throws:

IllegalActionException - If the parse fails.

getRegisteredClasses

public static java.util.List getRegisteredClasses()

Return the list of classes the parser searches when a function call is encountered. The classes are searched in the same order that they were registered with the parser, so the classes that are most likely to be searched should be registered first. This method is synchronized so that it can be called safely from multiple parsers.

Returns:

An unmodifiable list that can be iterated over.

registerConstant

public static void registerConstant(java.lang.String name,
                                    java.lang.Object value)
                             throws java.lang.IllegalArgumentException

Add a constant to the list of constants that the parser recognizes. It is a static method. The constants are stored in a hash table by the Constants class. The entry for each name is a ptolemy.data.Token of the appropriate type. The value for the constant can be given in a ptolemy.data.Token or in one of the data wrapper classes in java.lang.

Parameters:

name - The string name that the parser will recognize.

value - An Object constraining the value associated with the constant.

Throws:

java.lang.IllegalArgumentException - If the constant cannot be registered with the parser.

registerFunctionClass

public static void registerFunctionClass(java.lang.String newClassName)
                                  throws java.lang.IllegalArgumentException

Add a class to the list of classes that the parser searches when a function call is encountered. It is a static method. It stores the classes in a LinkedList. The classes are searched in the same order that they were registered with the parser, so the classes that are most likely to be searched should be registered first. This method is synchronized so that it can be called safely from multiple parsers.

Parameters:

newClassName - The fully qualified name of the Class to be added to the search path for functions.

Throws:

java.lang.IllegalArgumentException - If the Class named by the argument cannot not be found.

_initialize

private void _initialize()

Initialize the static variable containing the classes searched by the parser upon encountering a function call.

startSimpleAssignment

public final ASTPtRootNode startSimpleAssignment()
                                          throws ParseException

Throws:

ParseException

startAssignmentList

public final java.util.Map startAssignmentList()
                                        throws ParseException

Throws:

ParseException

assignment

public final void assignment()
                      throws ParseException

Throws:

ParseException

startString

public final ASTPtRootNode startString()
                                throws ParseException

Throws:

ParseException

stringModeElement

public final void stringModeElement()
                             throws ParseException

Throws:

ParseException

stringModeString

public final void stringModeString()
                            throws ParseException

Throws:

ParseException

start

public final ASTPtRootNode start()
                          throws ParseException

Throws:

ParseException

expression

public final void expression()
                      throws ParseException

Throws:

ParseException

funcIf

public final void funcIf()
                  throws ParseException

Throws:

ParseException

logicalOr

public final void logicalOr()
                     throws ParseException

Throws:

ParseException

logicalAnd

public final void logicalAnd()
                      throws ParseException

Throws:

ParseException

bitwiseOr

public final void bitwiseOr()
                     throws ParseException

Throws:

ParseException

bitwiseXor

public final void bitwiseXor()
                      throws ParseException

Throws:

ParseException

bitwiseAnd

public final void bitwiseAnd()
                      throws ParseException

Throws:

ParseException

logicalEquals

public final void logicalEquals()
                         throws ParseException

Throws:

ParseException

power

public final void power()
                 throws ParseException

Throws:

ParseException

relational

public final void relational()
                      throws ParseException

Throws:

ParseException

shift

public final void shift()
                 throws ParseException

Throws:

ParseException

sum

public final void sum()
               throws ParseException

Throws:

ParseException

term

public final void term()
                throws ParseException

Throws:

ParseException

unary

public final void unary()
                 throws ParseException

Throws:

ParseException

element

public final void element()
                   throws ParseException

Throws:

ParseException

integer

public final void integer()
                   throws ParseException

Throws:

ParseException

primaryElement

public final void primaryElement()
                          throws ParseException

Throws:

ParseException

functionDefinition

public final void functionDefinition()
                              throws ParseException

Throws:

ParseException

optTypeSpecifier

public final void optTypeSpecifier()
                            throws ParseException

Throws:

ParseException

function

public final void function()
                    throws ParseException

Throws:

ParseException

assignmentIdentifier

public final void assignmentIdentifier()
                                throws ParseException

Throws:

ParseException

identifier

public final void identifier()
                      throws ParseException

Throws:

ParseException

matrixConstruct

public final void matrixConstruct()
                           throws ParseException

Throws:

ParseException

recordConstruct

public final void recordConstruct()
                           throws ParseException

Throws:

ParseException

orderedRecordConstruct

public final void orderedRecordConstruct()
                                  throws ParseException

Throws:

ParseException

unionConstruct

public final void unionConstruct()
                          throws ParseException

Throws:

ParseException

arrayConstruct

public final void arrayConstruct()
                          throws ParseException

Throws:

ParseException

nilArrayConstruct

public final void nilArrayConstruct()
                             throws ParseException

Throws:

ParseException

jj_2_1

private final boolean jj_2_1(int xla)

jj_2_2

private final boolean jj_2_2(int xla)

jj_2_3

private final boolean jj_2_3(int xla)

jj_2_4

private final boolean jj_2_4(int xla)

jj_2_5

private final boolean jj_2_5(int xla)

jj_2_6

private final boolean jj_2_6(int xla)

jj_2_7

private final boolean jj_2_7(int xla)

jj_2_8

private final boolean jj_2_8(int xla)

jj_2_9

private final boolean jj_2_9(int xla)

jj_2_10

private final boolean jj_2_10(int xla)

jj_2_11

private final boolean jj_2_11(int xla)

jj_2_12

private final boolean jj_2_12(int xla)

jj_2_13

private final boolean jj_2_13(int xla)

jj_2_14

private final boolean jj_2_14(int xla)

jj_2_15

private final boolean jj_2_15(int xla)

jj_2_16

private final boolean jj_2_16(int xla)

jj_3_9

private final boolean jj_3_9()

jj_3R_40

private final boolean jj_3R_40()

jj_3R_41

private final boolean jj_3R_41()

jj_3R_56

private final boolean jj_3R_56()

jj_3_8

private final boolean jj_3_8()

jj_3R_55

private final boolean jj_3R_55()

jj_3R_54

private final boolean jj_3R_54()

jj_3R_32

private final boolean jj_3R_32()

jj_3R_69

private final boolean jj_3R_69()

jj_3R_53

private final boolean jj_3R_53()

jj_3R_66

private final boolean jj_3R_66()

jj_3R_52

private final boolean jj_3R_52()

jj_3R_38

private final boolean jj_3R_38()

jj_3R_45

private final boolean jj_3R_45()

jj_3R_31

private final boolean jj_3R_31()

jj_3R_67

private final boolean jj_3R_67()

jj_3R_50

private final boolean jj_3R_50()

jj_3R_49

private final boolean jj_3R_49()

jj_3R_51

private final boolean jj_3R_51()

jj_3R_37

private final boolean jj_3R_37()

jj_3_16

private final boolean jj_3_16()

jj_3R_30

private final boolean jj_3R_30()

jj_3R_65

private final boolean jj_3R_65()

jj_3_1

private final boolean jj_3_1()

jj_3_2

private final boolean jj_3_2()

jj_3R_68

private final boolean jj_3R_68()

jj_3R_36

private final boolean jj_3R_36()

jj_3R_62

private final boolean jj_3R_62()

jj_3R_28

private final boolean jj_3R_28()

jj_3_3

private final boolean jj_3_3()

jj_3R_64

private final boolean jj_3R_64()

jj_3R_35

private final boolean jj_3R_35()

jj_3R_26

private final boolean jj_3R_26()

jj_3_4

private final boolean jj_3_4()

jj_3R_70

private final boolean jj_3R_70()

jj_3R_48

private final boolean jj_3R_48()

jj_3R_61

private final boolean jj_3R_61()

jj_3R_39

private final boolean jj_3R_39()

jj_3R_27

private final boolean jj_3R_27()

jj_3_5

private final boolean jj_3_5()

jj_3R_25

private final boolean jj_3R_25()

jj_3_7

private final boolean jj_3_7()

jj_3_6

private final boolean jj_3_6()

jj_3R_44

private final boolean jj_3R_44()

jj_3R_34

private final boolean jj_3R_34()

jj_3_15

private final boolean jj_3_15()

jj_3R_47

private final boolean jj_3R_47()

jj_3R_46

private final boolean jj_3R_46()

jj_3_14

private final boolean jj_3_14()

jj_3R_29

private final boolean jj_3R_29()

jj_3R_43

private final boolean jj_3R_43()

jj_3_13

private final boolean jj_3_13()

jj_3R_60

private final boolean jj_3R_60()

jj_3R_42

private final boolean jj_3R_42()

jj_3_12

private final boolean jj_3_12()

jj_3R_63

private final boolean jj_3R_63()

jj_3R_59

private final boolean jj_3R_59()

jj_3_11

private final boolean jj_3_11()

jj_3R_33

private final boolean jj_3R_33()

jj_3R_58

private final boolean jj_3R_58()

jj_3_10

private final boolean jj_3_10()

jj_3R_57

private final boolean jj_3R_57()

jj_la1_0

private static void jj_la1_0()

jj_la1_1

private static void jj_la1_1()

jj_la1_2

private static void jj_la1_2()

ReInit

public void ReInit(java.io.InputStream stream)

ReInit

public void ReInit(java.io.InputStream stream,
                   java.lang.String encoding)

ReInit

public void ReInit(java.io.Reader stream)

ReInit

public void ReInit(PtParserTokenManager tm)

jj_consume_token

private final Token jj_consume_token(int kind)
                              throws ParseException

Throws:

ParseException

jj_scan_token

private final boolean jj_scan_token(int kind)

getNextToken

public final Token getNextToken()

getToken

public final Token getToken(int index)

jj_ntk

private final int jj_ntk()

jj_add_error_token

private void jj_add_error_token(int kind,
                                int pos)

generateParseException

public ParseException generateParseException()

enable_tracing

public final void enable_tracing()

disable_tracing

public final void disable_tracing()

jj_rescan_token

private final void jj_rescan_token()

jj_save

private final void jj_save(int index,
                           int xla)