Java Doc for LRSyntaxNode.java in  » Parser » runcc » fri » patterns » interpreter » parsergenerator » parsertables » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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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 All known Subclasses:   fri.patterns.interpreter.parsergenerator.parsertables.LALRSyntaxNode, LRSyntaxNode class LRSyntaxNode extends SLRSyntaxNode (Code) LR bottom-up parser syntax node. This node type contains lookahead-sets within its items, calculated from FIRST sets and nullability. See Also:   fri.patterns.interpreter.parsergenerator.parsertables.SLRSyntaxNode author:    (c) 2000, Fritz Ritzberger Inner Class :protected class LRRuleStateItem extends RuleStateItem Field Summary protected  FirstSets firstSets      LR node must know FIRST sets. protected  Nullable nullable      LR node must know about nullability. Constructor Summary public   LRSyntaxNode(Nullable nullable, FirstSets firstSets)      Construction of node with FIRST-sets and nullability of all nonterminals in syntax. Method Summary protected  void addRulesDerivingPendingNonTerminal(RuleStateItem itm, String nonterm, Syntax syntax, List newItems)      Method called from closure, adopt all rules that derive the pending nonterminal. protected  void addStartLookahead(LRRuleStateItem item, int ruleIndex)      When start node (ruleIndex == 0), add EPSILON lookahead. protected  RuleStateItem createRuleStateItem(int ruleIndex, Rule rule)      Factory-method that constructs a LRRuleStateItem. protected  SLRSyntaxNode createSyntaxNode()      Factory-method that constructs a LRSyntaxNode. protected  List getNontermShiftSymbols(FirstSets firstSets, String nonterm)      Returns all symbols for which SHIFT must be put into PARSE-ACTION table for a nonterminal. protected  Iterator getReduceSymbols(FollowSets followSets, RuleStateItem item)      Returns all symbols for which REDUCE must be put into PARSE-ACTION table. Field Detail firstSets protected FirstSets firstSets(Code) LR node must know FIRST sets. nullable protected Nullable nullable(Code) LR node must know about nullability. Constructor Detail LRSyntaxNode public LRSyntaxNode(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. addStartLookahead protected void addStartLookahead(LRRuleStateItem item, int ruleIndex)(Code) When start node (ruleIndex == 0), add EPSILON lookahead. createRuleStateItem protected RuleStateItem createRuleStateItem(int ruleIndex, Rule rule)(Code) Factory-method that constructs a LRRuleStateItem. A start-lookahead gets appended to the item when it is the start node. createSyntaxNode protected SLRSyntaxNode createSyntaxNode()(Code) Factory-method that constructs a LRSyntaxNode. getNontermShiftSymbols protected List getNontermShiftSymbols(FirstSets firstSets, String nonterm)(Code) Returns all symbols for which SHIFT must be put into PARSE-ACTION table for a nonterminal. For LR and LALR this returns null. getReduceSymbols protected Iterator getReduceSymbols(FollowSets followSets, RuleStateItem item)(Code) Returns all symbols for which REDUCE must be put into PARSE-ACTION table. For LR and LALR this returns the lookahead of the passed item. 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)