hlt.language.syntax

Class DynamicParser

java.lang.Object

hlt.language.syntax.GenericParser

hlt.language.syntax.DynamicParser

public abstract class DynamicParser
extends GenericParser

This is the generic parser that is inherited by all parser classes generated by ParserGenerator for a grammar which uses dynamic operators.

Version:

Last modified on Fri Apr 13 19:57:45 2012 by hak

Author:

Hassan Aït-Kaci

See Also:

ParserGenerator, GenericParser, StaticParser

Copyright:

© by the author

Field Summary

Fields

Modifier and Type	Field and Description
java.util.AbstractList	operators The set of parser operators.

Fields inherited from class hlt.language.syntax.GenericParser

COMPACT_TREE, E_O_I, ERROR_SYMBOL, FULL_TREE, NO_TREE, parseTreeType, XML_TREE

Constructor Summary

Constructors

Constructor and Description
DynamicParser()

Method Summary

Methods

Modifier and Type	Method and Description
void	cut() Erases the latest backtracking information.
void	cutAll() Erases all backtracking information.
ParseNode	error() Returns an error token.
static ParseNode	literalToken(java.lang.String symbol) Overrides the implementation in GenericParser so that it does not return an error token if the symbol is not a known terminal symbol and the parser admits operators, in which case it is returned as a literal token anyway that will be resolved as a potential dynamic operator by the readToken method.
java.util.AbstractList	operators(java.lang.String name) Returns the set of operators with this name; or null in there are none.
java.util.AbstractList	operatorsInCategory(java.lang.String category) Returns the set of operators in this category; or null in there are none.
void	resetParser()
void	showOperators()

Methods inherited from class hlt.language.syntax.GenericParser

abort, currentNode, eoi, error, error, errorManager, fatalError, fatalError, fileName, getTokenizer, initialize, locate, makeXmlDocument, numberToken, numberToken, parse, parse, parse, parse, parse, parse, setErrorManager, setSwitchToken, setTokenizer, setTrace, setTreeType, setTreeType, symbolToken, syntaxError, syntaxError, toggleTrace, trace, traceAction, tracingIsOn, writeXml, xmlForm, xmlWriter

Methods inherited from class java.lang.Object

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

Field Detail

operators

public java.util.AbstractList operators

The set of parser operators.

Constructor Detail

DynamicParser

public DynamicParser()

Method Detail

operators

public final java.util.AbstractList operators(java.lang.String name)

Returns the set of operators with this name; or null in there are none.

operatorsInCategory

public final java.util.AbstractList operatorsInCategory(java.lang.String category)

Returns the set of operators in this category; or null in there are none.

resetParser

public void resetParser()

Overrides:

resetParser in class GenericParser

error

public ParseNode error()

Returns an error token. Overrides the default method.

Overrides:

error in class GenericParser

literalToken

public static final ParseNode literalToken(java.lang.String symbol)

Overrides the implementation in GenericParser so that it does not return an error token if the symbol is not a known terminal symbol and the parser admits operators, in which case it is returned as a literal token anyway that will be resolved as a potential dynamic operator by the readToken method.

cutAll

public final void cutAll()

Erases all backtracking information.

cut

public final void cut()

Erases the latest backtracking information.

showOperators

public final void showOperators()