Java Doc for StreamTokenizer.java in  » Apache-Harmony-Java-SE » java-package » java » io » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Apache Harmony Java SE » java package » java.io   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    java.io.StreamTokenizer StreamTokenizer public class StreamTokenizer (Code) StreamTokenizer takes a stream and a set of tokens and parses them one at a time. The different types of tokens that can be found are numbers, identifiers, quoted strings, and different comment styles. Field Summary final public static  int TT_EOF      The constant representing end of stream. final public static  int TT_EOL      The constant representing end of line. final public static  int TT_NUMBER      The constant representing a number token. final public static  int TT_WORD      The constant representing a word token. public  double nval      public  String sval      public  int ttype      Constructor Summary public   StreamTokenizer(InputStream is)      Construct a new StreamTokenizer on the InputStream is. public   StreamTokenizer(Reader r)      Construct a new StreamTokenizer on the Reader r. Initialize the default state per specification. All byte values 'A' through 'Z', 'a' through 'z', and '\u00A0' through '\u00FF' are considered to be alphabetic. All byte values '\u0000' through '\u0020' are considered to be white space. Method Summary public  void commentChar(int ch)      Set the character ch to be regarded as a comment character. public  void eolIsSignificant(boolean flag)      Set a boolean indicating whether or not end of line is significant and should be returned as TT_EOF in ttype. public  int lineno()      Answer the current line number. public  void lowerCaseMode(boolean flag)      Set a boolean indicating whether or not tokens should be uppercased when present in sval. public  int nextToken()      Answer the next token type. public  void ordinaryChar(int ch)      Set the character ch to be regarded as an ordinary character. public  void ordinaryChars(int low, int hi)      Set the characters ranging from low to hi to be regarded as ordinary characters. public  void parseNumbers()      Indicate that numbers should be parsed. public  void pushBack()      Indicate that the current token should be pushed back and returned the next time nextToken() is called. public  void quoteChar(int ch)      Set the character ch to be regarded as a quote character. public  void resetSyntax()      Reset all characters so that they are ordinary. public  void slashSlashComments(boolean flag)      Set a boolean indicating whether or not slash slash comments should be recognized. public  void slashStarComments(boolean flag)      Set a boolean indicating whether or not slash star comments should be recognized. public  String toString()      Answer the state of this tokenizer in a readable format. public  void whitespaceChars(int low, int hi)      Set the characters ranging from low to hi to be regarded as whitespace characters. public  void wordChars(int low, int hi)      Set the characters ranging from low to hi to be regarded as word characters. Field Detail TT_EOF final public static int TT_EOF(Code) The constant representing end of stream. TT_EOL final public static int TT_EOL(Code) The constant representing end of line. TT_NUMBER final public static int TT_NUMBER(Code) The constant representing a number token. TT_WORD final public static int TT_WORD(Code) The constant representing a word token. nval public double nval(Code) Contains a number if the current token is a number (ttype is TT_NUMBER) sval public String sval(Code) Contains a string if the current token is a word (ttype is TT_WORD) ttype public int ttype(Code) The token type Constructor Detail StreamTokenizer public StreamTokenizer(InputStream is)(Code) Construct a new StreamTokenizer on the InputStream is. This usage of this method should be replaced with the constructor which takes a Reader. Parameters:   is - The InputStream to parse tokens on. StreamTokenizer public StreamTokenizer(Reader r)(Code) Construct a new StreamTokenizer on the Reader r. Initialize the default state per specification. All byte values 'A' through 'Z', 'a' through 'z', and '\u00A0' through '\u00FF' are considered to be alphabetic. All byte values '\u0000' through '\u0020' are considered to be white space. '/' is a comment character. Single quote '\'' and double quote '"' are string quote characters. Numbers are parsed. Ends of lines are considered to be white space rather than separate tokens. C-style and C++-style comments are not recognized. These are the defaults and are not needed in constructor. Parameters:   r - The InputStream to parse tokens on. Method Detail commentChar public void commentChar(int ch)(Code) Set the character ch to be regarded as a comment character. Parameters:   ch - The character to be considered a comment character. eolIsSignificant public void eolIsSignificant(boolean flag)(Code) Set a boolean indicating whether or not end of line is significant and should be returned as TT_EOF in ttype. Parameters:   flag - true if EOL is significant, falseotherwise. lineno public int lineno()(Code) Answer the current line number. the current line number. lowerCaseMode public void lowerCaseMode(boolean flag)(Code) Set a boolean indicating whether or not tokens should be uppercased when present in sval. Parameters:   flag - true if sval should be forceduppercase, false otherwise. nextToken public int nextToken() throws IOException(Code) Answer the next token type. The next token to be parsed. throws:   IOException - If an IO error occurs while getting the token ordinaryChar public void ordinaryChar(int ch)(Code) Set the character ch to be regarded as an ordinary character. Parameters:   ch - The character to be considered an ordinary comment character. ordinaryChars public void ordinaryChars(int low, int hi)(Code) Set the characters ranging from low to hi to be regarded as ordinary characters. Parameters:   low - The starting range for ordinary characters. Parameters:   hi - The ending range for ordinary characters. parseNumbers public void parseNumbers()(Code) Indicate that numbers should be parsed. pushBack public void pushBack()(Code) Indicate that the current token should be pushed back and returned the next time nextToken() is called. quoteChar public void quoteChar(int ch)(Code) Set the character ch to be regarded as a quote character. Parameters:   ch - The character to be considered a quote comment character. resetSyntax public void resetSyntax()(Code) Reset all characters so that they are ordinary. slashSlashComments public void slashSlashComments(boolean flag)(Code) Set a boolean indicating whether or not slash slash comments should be recognized. The comment ends at a new line. Parameters:   flag - true if // should be recognizedas the start of a comment, false otherwise. slashStarComments public void slashStarComments(boolean flag)(Code) Set a boolean indicating whether or not slash star comments should be recognized. Slash-star comments cannot be nested and end when a star-slash combination is found. Parameters:   flag - true if /* should be recognizedas the start of a comment, false otherwise. toString public String toString()(Code) Answer the state of this tokenizer in a readable format. The current state of this tokenizer. whitespaceChars public void whitespaceChars(int low, int hi)(Code) Set the characters ranging from low to hi to be regarded as whitespace characters. Parameters:   low - The starting range for whitespace characters. Parameters:   hi - The ending range for whitespace characters. wordChars public void wordChars(int low, int hi)(Code) Set the characters ranging from low to hi to be regarded as word characters. Parameters:   low - The starting range for word characters. Parameters:   hi - The ending range for word characters. Methods inherited from java.lang.Object protected Object clone() throws CloneNotSupportedException(Code)(Java Doc) public boolean equals(Object object)(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) final public Class<? extends Object> getClass()(Code)(Java Doc) public int hashCode()(Code)(Java Doc) final public void notify()(Code)(Java Doc) final public void notifyAll()(Code)(Java Doc) public String toString()(Code)(Java Doc) final public void wait(long millis, int nanos) throws InterruptedException(Code)(Java Doc) final public void wait(long millis) throws InterruptedException(Code)(Java Doc) final public void wait() throws InterruptedException(Code)(Java Doc)