Java Doc for Parser.java in  » IDE-Netbeans » cnd » antlr » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » cnd » antlr   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    antlr.MatchExceptionState       antlr.Parser All known Subclasses:   antlr.LLkParser, Parser abstract public class Parser extends MatchExceptionState (Code) Field Summary final public static  int INITIAL_FOLLOW_STACK_SIZE      final public static  int MEMO_RULE_FAILED      final public static  int MEMO_RULE_UNKNOWN      protected  ASTFactory astFactory      AST support code; parser delegates to this object. protected  ParserSharedInputState inputState      protected  AST returnAST      protected  Map[] ruleMemo      An array[size num rules] of Map that tracks the stop token index for each rule. protected  String[] tokenNames      protected  Hashtable tokenTypeToASTClassMap      Constructed if any AST types specified in tokens{..}. protected  int traceDepth      Constructor Summary public   Parser()      public   Parser(ParserSharedInputState state)      Method Summary abstract public  int LA(int i)      Return the token type of the ith token of lookahead where i=1 is the current token being examined by the parser (i.e., it has not been matched yet). abstract public  Token LT(int i)      public  void addMessageListener(MessageListener l)      public  void addParserListener(ParserListener l)      public  void addParserMatchListener(ParserMatchListener l)      public  void addParserTokenListener(ParserTokenListener l)      public  void addSemanticPredicateListener(SemanticPredicateListener l)      public  void addSyntacticPredicateListener(SyntacticPredicateListener l)      public  void addTraceListener(TraceListener l)      public  boolean alreadyParsedRule(int ruleIndex)      Has this rule already parsed input at the current index in the input stream? Return the stop token index or MEMO_RULE_UNKNOWN. abstract public  void consume()      public  void consumeUntil(int tokenType)      public  void consumeUntil(BitSet set)      protected  void defaultDebuggingSetup(TokenStream lexer, TokenBuffer tokBuf)      public  AST getAST()      public  ASTFactory getASTFactory()      public  String getFilename()      public  ParserSharedInputState getInputState()      public  int getRuleMemoization(int ruleIndex, int ruleStartIndex)      Given a rule number and a start token index number, return MEMO_RULE_UNKNOWN if the rule has not parsed input starting from start index. public  String getTokenName(int num)      public  String[] getTokenNames()      public  Hashtable getTokenTypeToASTClassMap()      If the user specifies a tokens{} section with heterogeneous AST node types, then ANTLR generates code to fill this mapping. public  boolean isDebugMode()      public  int mark()      public  void match(int t)      Make sure current lookahead symbol matches token type t. public  void match(BitSet b)      Make sure current lookahead symbol matches the given set Throw an exception upon mismatch, which is catch by either the error handler or by the syntactic predicate. public  void matchNot(int t)      public  void memoize(int ruleIndex, int ruleStartIndex)      Record whether or not this rule parsed the input at this position successfully. public static  void panic()      public  void recover(RecognitionException ex, BitSet tokenSet)      public  void removeMessageListener(MessageListener l)      public  void removeParserListener(ParserListener l)      public  void removeParserMatchListener(ParserMatchListener l)      public  void removeParserTokenListener(ParserTokenListener l)      public  void removeSemanticPredicateListener(SemanticPredicateListener l)      public  void removeSyntacticPredicateListener(SyntacticPredicateListener l)      public  void removeTraceListener(TraceListener l)      public  void reportError(RecognitionException ex)      public  void reportError(String s)      public  void reportWarning(String s)      public  void rewind(int pos)      public  void setASTFactory(ASTFactory f)      Specify an object with support code (shared by Parser and TreeParser. public  void setASTNodeClass(String cl)      public  void setASTNodeType(String nodeType)      Specify the type of node to create during tree building; use setASTNodeClass now to be consistent with Token Object Type accessor. public  void setDebugMode(boolean debugMode)      public  void setFilename(String f)      public  void setIgnoreInvalidDebugCalls(boolean value)      public  void setInputState(ParserSharedInputState state)      public  void setTokenBuffer(TokenBuffer t)      public  void traceIn(String rname)      public  void traceIndent()      public  void traceOut(String rname)      Field Detail INITIAL_FOLLOW_STACK_SIZE final public static int INITIAL_FOLLOW_STACK_SIZE(Code) MEMO_RULE_FAILED final public static int MEMO_RULE_FAILED(Code) MEMO_RULE_UNKNOWN final public static int MEMO_RULE_UNKNOWN(Code) astFactory protected ASTFactory astFactory(Code) AST support code; parser delegates to this object. This is set during parser construction by default to either "new ASTFactory()" or a ctor that has a token type to class map for hetero nodes. inputState protected ParserSharedInputState inputState(Code) returnAST protected AST returnAST(Code) AST return value for a rule is squirreled away here ruleMemo protected Map[] ruleMemo(Code) An array[size num rules] of Map that tracks the stop token index for each rule. ruleMemo[ruleIndex] is the memoization table for ruleIndex. For key ruleStartIndex, you get back the stop token for associated rule or MEMO_RULE_FAILED. tokenNames protected String[] tokenNames(Code) Table of token type to token names tokenTypeToASTClassMap protected Hashtable tokenTypeToASTClassMap(Code) Constructed if any AST types specified in tokens{..}. Maps an Integer->Class object. traceDepth protected int traceDepth(Code) Used to keep track of indentdepth for traceIn/Out Constructor Detail Parser public Parser()(Code) Set to true upon any error; reset upon first valid token match Parser public Parser(ParserSharedInputState state)(Code) Method Detail LA abstract public int LA(int i)(Code) Return the token type of the ith token of lookahead where i=1 is the current token being examined by the parser (i.e., it has not been matched yet). LT abstract public Token LT(int i)(Code) Return the ith token of lookahead addMessageListener public void addMessageListener(MessageListener l)(Code) addParserListener public void addParserListener(ParserListener l)(Code) addParserMatchListener public void addParserMatchListener(ParserMatchListener l)(Code) addParserTokenListener public void addParserTokenListener(ParserTokenListener l)(Code) addSemanticPredicateListener public void addSemanticPredicateListener(SemanticPredicateListener l)(Code) addSyntacticPredicateListener public void addSyntacticPredicateListener(SyntacticPredicateListener l)(Code) addTraceListener public void addTraceListener(TraceListener l)(Code) alreadyParsedRule public boolean alreadyParsedRule(int ruleIndex)(Code) Has this rule already parsed input at the current index in the input stream? Return the stop token index or MEMO_RULE_UNKNOWN. If we attempted but failed to parse properly before, return MEMO_RULE_FAILED. This method has a side-effect: if we have seen this input for this rule and successfully parsed before, then seek ahead to 1 past the stop token matched for this rule last time. consume abstract public void consume()(Code) Get another token object from the token stream consumeUntil public void consumeUntil(int tokenType)(Code) Consume tokens until one matches the given token consumeUntil public void consumeUntil(BitSet set)(Code) Consume tokens until one matches the given token set defaultDebuggingSetup protected void defaultDebuggingSetup(TokenStream lexer, TokenBuffer tokBuf)(Code) getAST public AST getAST()(Code) Get the AST return value squirreled away in the parser getASTFactory public ASTFactory getASTFactory()(Code) getFilename public String getFilename()(Code) getInputState public ParserSharedInputState getInputState()(Code) getRuleMemoization public int getRuleMemoization(int ruleIndex, int ruleStartIndex)(Code) Given a rule number and a start token index number, return MEMO_RULE_UNKNOWN if the rule has not parsed input starting from start index. If this rule has parsed input starting from the start index before, then return where the rule stopped parsing. It returns the index of the last token matched by the rule. For now we use a hashtable and just the slow Object-based one. Later, we can make a special one for ints and also one that tosses out data after we commit past input position i. getTokenName public String getTokenName(int num)(Code) getTokenNames public String[] getTokenNames()(Code) getTokenTypeToASTClassMap public Hashtable getTokenTypeToASTClassMap()(Code) If the user specifies a tokens{} section with heterogeneous AST node types, then ANTLR generates code to fill this mapping. isDebugMode public boolean isDebugMode()(Code) mark public int mark()(Code) match public void match(int t) throws MismatchedTokenException(Code) Make sure current lookahead symbol matches token type t. Throw an exception upon mismatch, which is catch by either the error handler or by the syntactic predicate. match public void match(BitSet b) throws MismatchedTokenException(Code) Make sure current lookahead symbol matches the given set Throw an exception upon mismatch, which is catch by either the error handler or by the syntactic predicate. matchNot public void matchNot(int t) throws MismatchedTokenException(Code) memoize public void memoize(int ruleIndex, int ruleStartIndex)(Code) Record whether or not this rule parsed the input at this position successfully. Use a standard java hashtable for now. panic public static void panic()(Code) recover public void recover(RecognitionException ex, BitSet tokenSet)(Code) removeMessageListener public void removeMessageListener(MessageListener l)(Code) removeParserListener public void removeParserListener(ParserListener l)(Code) removeParserMatchListener public void removeParserMatchListener(ParserMatchListener l)(Code) removeParserTokenListener public void removeParserTokenListener(ParserTokenListener l)(Code) removeSemanticPredicateListener public void removeSemanticPredicateListener(SemanticPredicateListener l)(Code) removeSyntacticPredicateListener public void removeSyntacticPredicateListener(SyntacticPredicateListener l)(Code) removeTraceListener public void removeTraceListener(TraceListener l)(Code) reportError public void reportError(RecognitionException ex)(Code) Parser error-reporting function can be overridden in subclass reportError public void reportError(String s)(Code) Parser error-reporting function can be overridden in subclass reportWarning public void reportWarning(String s)(Code) Parser warning-reporting function can be overridden in subclass rewind public void rewind(int pos)(Code) setASTFactory public void setASTFactory(ASTFactory f)(Code) Specify an object with support code (shared by Parser and TreeParser. Normally, the programmer does not play with this, using setASTNodeType instead. setASTNodeClass public void setASTNodeClass(String cl)(Code) setASTNodeType public void setASTNodeType(String nodeType)(Code) Specify the type of node to create during tree building; use setASTNodeClass now to be consistent with Token Object Type accessor. setDebugMode public void setDebugMode(boolean debugMode)(Code) setFilename public void setFilename(String f)(Code) setIgnoreInvalidDebugCalls public void setIgnoreInvalidDebugCalls(boolean value)(Code) setInputState public void setInputState(ParserSharedInputState state)(Code) setTokenBuffer public void setTokenBuffer(TokenBuffer t)(Code) Set or change the input token buffer traceIn public void traceIn(String rname)(Code) traceIndent public void traceIndent()(Code) traceOut public void traceOut(String rname)(Code) Fields inherited from antlr.MatchExceptionState final public static RecognitionException defaultException(Code)(Java Doc) public boolean matchError(Code)(Java Doc) public RecognitionException matchException(Code)(Java Doc) final protected static boolean throwRecExceptions(Code)(Java Doc) Methods inherited from antlr.MatchExceptionState public void resetMatchError()(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)