Java Doc for RubyYaccLexer.java in  » IDE-Netbeans » library » org » jruby » lexer » yacc » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » library » org.jruby.lexer.yacc   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    org.jruby.lexer.yacc.RubyYaccLexer RubyYaccLexer public class RubyYaccLexer (Code) This is a port of the MRI lexer to Java it is compatible to Ruby 1.8.1. Inner Class :public static class HeredocContext Field Summary final static  int EOF      final static  int STR_FUNC_ESCAPE      final static  int STR_FUNC_EXPAND      final static  int STR_FUNC_INDENT      final static  int STR_FUNC_QWORDS      final static  int STR_FUNC_REGEXP      final static  int STR_FUNC_SYMBOL      public  HeredocContext heredocContext       Object yaccValue      Constructor Summary public   RubyYaccLexer()      Method Summary public  boolean advance()      How the parser advances to the next token. public  StackState getCmdArgumentState()      public  StackState getConditionState()      public  LexState getLexState()      public  ISourcePosition getPosition(ISourcePosition startPosition, boolean inclusive)      Get position information for Token/Node that follows node represented by startPosition and current lexer location. public  ISourcePosition getPosition()      public  ISourcePositionFactory getPositionFactory()      public  boolean getPreserveSpaces()      Return whether or not the lexer should be "space preserving". public  LexerSource getSource()      public  StrTerm getStrTerm()      public  StringBuffer getTokenBuffer()      public  boolean isCommandStart()      final static  boolean isHexChar(char c)      final static  boolean isOctChar(char c)      public  boolean isSetSpaceSeen()      protected  int readComment(char c)      Read a comment up to end of line. public  void reset()      public  void resetStacks()      public  void setCommandStart(boolean commandStart)      public  void setLexState(LexState lex_state)      public  void setParserSupport(ParserSupport parserSupport)      Parse must pass its support object for some check at bottom of yylex(). public  void setPreserveSpaces(boolean preserveSpaces)      Set whether or not the lexer should be "space preserving" - in other words, whether the parser should consider whitespace sequences and code comments to be separate tokens to return to the client. public  void setSource(LexerSource source)      Allow the parser to set the source for its lexer. public  void setSpaceSeen(boolean setSpaceSeen)      public  void setState(LexState state)      public  void setStrTerm(StrTerm strterm)      public  void setValue(Object yaccValue)      public  void setWarnings(IRubyWarnings warnings)      public  int token()      public  Object value()      Value of last token (if it is a token which has a value). Field Detail EOF final static int EOF(Code) STR_FUNC_ESCAPE final static int STR_FUNC_ESCAPE(Code) STR_FUNC_EXPAND final static int STR_FUNC_EXPAND(Code) STR_FUNC_INDENT final static int STR_FUNC_INDENT(Code) STR_FUNC_QWORDS final static int STR_FUNC_QWORDS(Code) STR_FUNC_REGEXP final static int STR_FUNC_REGEXP(Code) STR_FUNC_SYMBOL final static int STR_FUNC_SYMBOL(Code) heredocContext public HeredocContext heredocContext(Code) yaccValue Object yaccValue(Code) Constructor Detail RubyYaccLexer public RubyYaccLexer()(Code) Method Detail advance public boolean advance() throws IOException(Code) How the parser advances to the next token. true if not at end of file (EOF). getCmdArgumentState public StackState getCmdArgumentState()(Code) getConditionState public StackState getConditionState()(Code) getLexState public LexState getLexState()(Code) getPosition public ISourcePosition getPosition(ISourcePosition startPosition, boolean inclusive)(Code) Get position information for Token/Node that follows node represented by startPosition and current lexer location. Parameters:   startPosition - previous node/token Parameters:   inclusive - include previous node into position information of current node a new position getPosition public ISourcePosition getPosition()(Code) getPositionFactory public ISourcePositionFactory getPositionFactory()(Code) getPreserveSpaces public boolean getPreserveSpaces()(Code) Return whether or not the lexer should be "space preserving". For a description of what this means, see RubyYaccLexer.setPreserveSpaces . preserveSpaces True iff space and comment sequences will be returned astokens, and false otherwise. See Also:   RubyYaccLexer.setPreserveSpaces getSource public LexerSource getSource()(Code) getStrTerm public StrTerm getStrTerm()(Code) getTokenBuffer public StringBuffer getTokenBuffer()(Code) isCommandStart public boolean isCommandStart()(Code) isHexChar final static boolean isHexChar(char c)(Code) Parameters:   c - the character to test true if character is a hex value (0-9a-f) isOctChar final static boolean isOctChar(char c)(Code) Parameters:   c - the character to test true if character is an octal value (0-7) isSetSpaceSeen public boolean isSetSpaceSeen()(Code) readComment protected int readComment(char c) throws IOException(Code) Read a comment up to end of line. When found each comment will get stored away into the parser result so that any interested party can use them as they seem fit. One idea is that IDE authors can do distance based heuristics to associate these comments to the AST node they think they belong to. Parameters:   c - last character read from lexer source newline or eof value reset public void reset()(Code) resetStacks public void resetStacks()(Code) setCommandStart public void setCommandStart(boolean commandStart)(Code) setLexState public void setLexState(LexState lex_state)(Code) setParserSupport public void setParserSupport(ParserSupport parserSupport)(Code) Parse must pass its support object for some check at bottom of yylex(). Ruby does it this way as well (i.e. a little parsing logic in the lexer). Parameters:   parserSupport - setPreserveSpaces public void setPreserveSpaces(boolean preserveSpaces)(Code) Set whether or not the lexer should be "space preserving" - in other words, whether the parser should consider whitespace sequences and code comments to be separate tokens to return to the client. Parsers typically do not want to see any whitespace or comment tokens - but an IDE trying to tokenize a chunk of source code does want to identify these separately. The default, false, means the parser mode. Parameters:   preserveSpaces - If true, return space and comment sequences as tokens, if false, skip these See Also:   RubyYaccLexer.getPreserveSpaces setSource public void setSource(LexerSource source)(Code) Allow the parser to set the source for its lexer. Parameters:   source - where the lexer gets raw data setSpaceSeen public void setSpaceSeen(boolean setSpaceSeen)(Code) setState public void setState(LexState state)(Code) setStrTerm public void setStrTerm(StrTerm strterm)(Code) setValue public void setValue(Object yaccValue)(Code) setWarnings public void setWarnings(IRubyWarnings warnings)(Code) token public int token()(Code) Last token read from the lexer at the end of a call to yylex() last token read value public Object value()(Code) Value of last token (if it is a token which has a value). value of last value-laden token 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)