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Java Source Code / Java Documentation » Parser » runcc » fri.patterns.interpreter.parsergenerator.parsertables 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   fri.patterns.interpreter.parsergenerator.parsertables.SLRSyntaxNode
      fri.patterns.interpreter.parsergenerator.parsertables.LRSyntaxNode
         fri.patterns.interpreter.parsergenerator.parsertables.LALRSyntaxNode

LALRSyntaxNode
class LALRSyntaxNode extends LRSyntaxNode (Code)
LR bottom-up parser syntax node. This node type contains an algorithm to propagate lookahead-sets of items to dependent items after syntax nodes were constructed.
See Also:   fri.patterns.interpreter.parsergenerator.parsertables.LRSyntaxNode
author:
   (c) 2000, Fritz Ritzberger

Inner Class :protected class LALRRuleStateItem extends LRRuleStateItem


Constructor Summary
public  LALRSyntaxNode(Nullable nullable, FirstSets firstSets)
     Construction of node with FIRST-sets and nullability of all nonterminals in syntax.

Method Summary
protected  voidaddRulesDerivingPendingNonTerminal(RuleStateItem itm, String nonterm, Syntax syntax, List newItems)
     Method called from closure, adopt all rules that derive the pending nonterminal. Default lookaheads are calculated here.
public  Listbuild(Syntax syntax, List syntaxNodes, Hashtable kernels)
     Calls super.
protected  RuleStateItemcreateRuleStateItem(int ruleIndex, Rule rule)
     Factory-method that constructs a LALRRuleStateItem.
protected  SLRSyntaxNodecreateSyntaxNode()
     Factory-method that constructs a LALRSyntaxNode.
protected  voidlinkParentItemToChild(RuleStateItem parent, int newIndex, List syntaxNodes, RuleStateItem child)
     Called from closure, connect a rule state item to its follower.


Constructor Detail
LALRSyntaxNode
public LALRSyntaxNode(Nullable nullable, FirstSets firstSets)(Code)
Construction of node with FIRST-sets and nullability of all nonterminals in syntax.




Method Detail
addRulesDerivingPendingNonTerminal
protected void addRulesDerivingPendingNonTerminal(RuleStateItem itm, String nonterm, Syntax syntax, List newItems)(Code)
Method called from closure, adopt all rules that derive the pending nonterminal. Default lookaheads are calculated here. Items that need lookahead propagation are located here.



build
public List build(Syntax syntax, List syntaxNodes, Hashtable kernels)(Code)
Calls super. After build lookaheads get propagated.



createRuleStateItem
protected RuleStateItem createRuleStateItem(int ruleIndex, Rule rule)(Code)
Factory-method that constructs a LALRRuleStateItem. A start-lookahead gets appended to the item when it is the start node.



createSyntaxNode
protected SLRSyntaxNode createSyntaxNode()(Code)
Factory-method that constructs a LALRSyntaxNode.



linkParentItemToChild
protected void linkParentItemToChild(RuleStateItem parent, int newIndex, List syntaxNodes, RuleStateItem child)(Code)
Called from closure, connect a rule state item to its follower. Lookahead-Propagation gets prepared by linking parent to child.



Fields inherited from fri.patterns.interpreter.parsergenerator.parsertables.LRSyntaxNode
protected FirstSets firstSets(Code)(Java Doc)
protected Nullable nullable(Code)(Java Doc)

Methods inherited from fri.patterns.interpreter.parsergenerator.parsertables.LRSyntaxNode
protected void addRulesDerivingPendingNonTerminal(RuleStateItem itm, String nonterm, Syntax syntax, List newItems)(Code)(Java Doc)
protected void addStartLookahead(LRRuleStateItem item, int ruleIndex)(Code)(Java Doc)
protected RuleStateItem createRuleStateItem(int ruleIndex, Rule rule)(Code)(Java Doc)
protected SLRSyntaxNode createSyntaxNode()(Code)(Java Doc)
protected List getNontermShiftSymbols(FirstSets firstSets, String nonterm)(Code)(Java Doc)
protected Iterator getReduceSymbols(FollowSets followSets, RuleStateItem item)(Code)(Java Doc)

Fields inherited from fri.patterns.interpreter.parsergenerator.parsertables.SLRSyntaxNode
protected Hashtable entries(Code)(Java Doc)

Methods inherited from fri.patterns.interpreter.parsergenerator.parsertables.SLRSyntaxNode
protected void addRulesDerivingPendingNonTerminal(RuleStateItem item, String nonterm, Syntax syntax, List todo)(Code)(Java Doc)
protected List addShiftedItems(String symbol, Hashtable originatorEntries)(Code)(Java Doc)
public List build(Syntax syntax, List syntaxNodes, Hashtable kernels)(Code)(Java Doc)
protected void closure(Syntax syntax)(Code)(Java Doc)
protected RuleStateItem createRuleStateItem(int ruleIndex, Rule rule)(Code)(Java Doc)
protected SLRSyntaxNode createSyntaxNode()(Code)(Java Doc)
public boolean equals(Object o)(Code)(Java Doc)
public Hashtable fillGotoLine(int state)(Code)(Java Doc)
public Hashtable fillParseActionLine(int state, FirstSets firstSets, FollowSets followSets)(Code)(Java Doc)
protected void generateSyntaxNodes(List syntaxNodes, Syntax syntax, Hashtable kernels)(Code)(Java Doc)
protected void generateSyntaxNodesFromItems(List syntaxNodes, Syntax syntax, Hashtable kernels)(Code)(Java Doc)
protected List getNontermShiftSymbols(FirstSets firstSets, String nonterm)(Code)(Java Doc)
protected Iterator getReduceSymbols(FollowSets followSets, RuleStateItem item)(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
protected void linkParentItemToChild(RuleStateItem parent, int newIndex, List syntaxNodes, RuleStateItem child)(Code)(Java Doc)
protected void setParseTableLine(int state, Hashtable line, RuleStateItem item, Integer action, String terminal)(Code)(Java Doc)
protected boolean setTableLine(String table, int state, Hashtable line, RuleStateItem item, Integer action, String terminal)(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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