tablescanner.java

该工具也是用于字节码插桩

/* The following code was generated by JFlex 1.3.5 on 6/24/02 4:30 PM */

/*
 * Scanner.jflex
 * 
 * Lexer for the Table format
 *
 * See LICENSE file for license conditions.
 */

package residue.tables;
import java_cup.runtime.*;


/**
 * This class is a scanner generated by 
 * <a href="http://www.jflex.de/">JFlex</a> 1.3.5
 * on 6/24/02 4:30 PM from the specification file
 * <tt>file:/home/chowells/work/Gretel/residue/tables/Scanner.jflex</tt>
 */
class TableScanner implements java_cup.runtime.Scanner {

  /** This character denotes the end of file */
  final public static int YYEOF = -1;

  /** initial size of the lookahead buffer */
  final private static int YY_BUFFERSIZE = 16384;

  /** lexical states */
  final public static int STRING = 1;
  final public static int YYINITIAL = 0;

  /** 
   * Translates characters to character classes
   */
  final private static String yycmap_packed = 
    "\11\0\1\26\1\26\2\0\1\26\22\0\1\12\1\0\1\25\12\0"+
    "\1\1\2\0\12\2\1\0\1\24\5\0\6\30\24\0\1\3\1\27"+
    "\1\17\3\0\1\30\1\7\1\14\1\11\1\10\1\20\4\0\1\15"+
    "\1\13\1\0\1\21\1\6\1\4\1\0\1\5\1\16\1\23\1\22"+
    "\uff8a\0";

  /** 
   * Translates characters to character classes
   */
  final private static char [] yycmap = yy_unpack_cmap(yycmap_packed);

  /** 
   * Translates a state to a row index in the transition table
   */
  final private static int yy_rowMap [] = { 
        0,    25,    50,    75,    75,   100,   125,    50,    50,   150, 
       50,   175,   200,   225,   250,   275,    50,    50,   300,   325, 
      350,   375,   400,   425,   450,   475,   500,   525,   550,   575, 
      600,   625,   650,    50,   675,   700,   725,   750,   775,   800, 
      825,   850,   875,   900,   925,   950,   975,  1000,  1025,  1050, 
     1075,  1100,  1125,  1150,  1175,  1200,  1225,    50,    50,  1250, 
     1275,  1300,  1325,    50
  };

  /** 
   * The packed transition table of the DFA (part 0)
   */
  final private static String yy_packed0 = 
    "\1\3\1\4\1\5\1\6\6\3\1\7\11\3\1\10"+
    "\1\11\1\7\2\3\25\12\1\13\1\12\1\14\1\12"+
    "\33\0\1\5\32\0\1\15\1\16\10\0\1\17\24\0"+
    "\1\7\13\0\1\7\2\0\25\12\1\0\1\12\1\0"+
    "\1\12\22\0\1\20\2\0\1\21\1\0\1\22\6\0"+
    "\1\23\33\0\1\24\26\0\1\25\24\0\1\26\4\0"+
    "\3\26\2\0\1\26\3\0\1\26\7\0\1\26\6\0"+
    "\1\27\42\0\1\30\32\0\1\31\10\0\1\32\4\0"+
    "\3\32\2\0\1\32\3\0\1\32\7\0\1\32\7\0"+
    "\1\33\31\0\1\34\25\0\1\35\25\0\1\36\4\0"+
    "\3\36\2\0\1\36\3\0\1\36\7\0\1\36\10\0"+
    "\1\37\25\0\1\40\37\0\1\41\16\0\1\42\4\0"+
    "\3\42\2\0\1\42\3\0\1\42\7\0\1\42\11\0"+
    "\1\43\27\0\1\44\30\0\1\45\32\0\1\46\37\0"+
    "\1\47\21\0\1\50\25\0\1\51\35\0\1\52\21\0"+
    "\1\53\36\0\1\54\25\0\1\55\26\0\1\56\30\0"+
    "\1\57\33\0\1\60\25\0\1\61\36\0\1\62\26\0"+
    "\1\63\41\0\1\64\22\0\1\65\22\0\1\66\37\0"+
    "\1\67\30\0\1\70\25\0\1\71\34\0\1\72\30\0"+
    "\1\73\17\0\1\74\36\0\1\75\31\0\1\76\31\0"+
    "\1\77\31\0\1\100\11\0";

  /** 
   * The transition table of the DFA
   */
  final private static int yytrans [] = yy_unpack();


  /* error codes */
  final private static int YY_UNKNOWN_ERROR = 0;
  final private static int YY_ILLEGAL_STATE = 1;
  final private static int YY_NO_MATCH = 2;
  final private static int YY_PUSHBACK_2BIG = 3;

  /* error messages for the codes above */
  final private static String YY_ERROR_MSG[] = {
    "Unkown internal scanner error",
    "Internal error: unknown state",
    "Error: could not match input",
    "Error: pushback value was too large"
  };

  /**
   * YY_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
   */
  private final static byte YY_ATTRIBUTE[] = {
     0,  0,  9,  1,  1,  1,  1,  9,  9,  1,  9,  1,  0,  0,  0,  0, 
     9,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 
     0,  9,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, 
     0,  0,  0,  0,  0,  0,  0,  0,  0,  9,  9,  0,  0,  0,  0,  9
  };

  /** the input device */
  private java.io.Reader yy_reader;

  /** the current state of the DFA */
  private int yy_state;

  /** the current lexical state */
  private int yy_lexical_state = YYINITIAL;

  /** this buffer contains the current text to be matched and is
      the source of the yytext() string */
  private char yy_buffer[] = new char[YY_BUFFERSIZE];

  /** the textposition at the last accepting state */
  private int yy_markedPos;

  /** the textposition at the last state to be included in yytext */
  private int yy_pushbackPos;

  /** the current text position in the buffer */
  private int yy_currentPos;

  /** startRead marks the beginning of the yytext() string in the buffer */
  private int yy_startRead;

  /** endRead marks the last character in the buffer, that has been read
      from input */
  private int yy_endRead;

  /** number of newlines encountered up to the start of the matched text */
  private int yyline;

  /** the number of characters up to the start of the matched text */
  private int yychar;

  /**
   * the number of characters from the last newline up to the start of the 
   * matched text
   */
  private int yycolumn; 

  /** 
   * yy_atBOL == true <=> the scanner is currently at the beginning of a line
   */
  private boolean yy_atBOL = true;

  /** yy_atEOF == true <=> the scanner is at the EOF */
  private boolean yy_atEOF;

  /** denotes if the user-EOF-code has already been executed */
  private boolean yy_eof_done;

  /* user code: */
	private StringBuffer sb = new StringBuffer();


  /**
   * Creates a new scanner
   * There is also a java.io.InputStream version of this constructor.
   *
   * @param   in  the java.io.Reader to read input from.
   */
  TableScanner(java.io.Reader in) {
    this.yy_reader = in;
  }

  /**
   * Creates a new scanner.
   * There is also java.io.Reader version of this constructor.
   *
   * @param   in  the java.io.Inputstream to read input from.
   */
  TableScanner(java.io.InputStream in) {
    this(new java.io.InputStreamReader(in));
  }

  /** 
   * Unpacks the split, compressed DFA transition table.
   *
   * @return the unpacked transition table
   */
  private static int [] yy_unpack() {
    int [] trans = new int[1350];
    int offset = 0;
    offset = yy_unpack(yy_packed0, offset, trans);
    return trans;
  }

  /** 
   * Unpacks the compressed DFA transition table.
   *
   * @param packed   the packed transition table
   * @return         the index of the last entry
   */
  private static int yy_unpack(String packed, int offset, int [] trans) {
    int i = 0;       /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int count = packed.charAt(i++);
      int value = packed.charAt(i++);
      value--;
      do trans[j++] = value; while (--count > 0);
    }
    return j;
  }

  /** 
   * Unpacks the compressed character translation table.
   *
   * @param packed   the packed character translation table
   * @return         the unpacked character translation table
   */
  private static char [] yy_unpack_cmap(String packed) {
    char [] map = new char[0x10000];
    int i = 0;  /* index in packed string  */
    int j = 0;  /* index in unpacked array */
    while (i < 82) {
      int  count = packed.charAt(i++);
      char value = packed.charAt(i++);
      do map[j++] = value; while (--count > 0);
    }
    return map;
  }


  /**
   * Refills the input buffer.
   *
   * @return      <code>false</code>, iff there was new input.
   * 
   * @exception   IOException  if any I/O-Error occurs
   */
  private boolean yy_refill() throws java.io.IOException {

    /* first: make room (if you can) */
    if (yy_startRead > 0) {
      System.arraycopy(yy_buffer, yy_startRead, 
                       yy_buffer, 0, 
                       yy_endRead-yy_startRead);

      /* translate stored positions */
      yy_endRead-= yy_startRead;
      yy_currentPos-= yy_startRead;
      yy_markedPos-= yy_startRead;
      yy_pushbackPos-= yy_startRead;
      yy_startRead = 0;
    }

    /* is the buffer big enough? */
    if (yy_currentPos >= yy_buffer.length) {
      /* if not: blow it up */
      char newBuffer[] = new char[yy_currentPos*2];
      System.arraycopy(yy_buffer, 0, newBuffer, 0, yy_buffer.length);
      yy_buffer = newBuffer;
    }

    /* finally: fill the buffer with new input */
    int numRead = yy_reader.read(yy_buffer, yy_endRead, 
                                            yy_buffer.length-yy_endRead);

    if (numRead < 0) {
      return true;
    }
    else {
      yy_endRead+= numRead;  
      return false;
    }
  }


  /**
   * Closes the input stream.
   */
  final public void yyclose() throws java.io.IOException {
    yy_atEOF = true;            /* indicate end of file */
    yy_endRead = yy_startRead;  /* invalidate buffer    */

    if (yy_reader != null)
      yy_reader.close();
  }


  /**
   * Closes the current stream, and resets the
   * scanner to read from a new input stream.
   *
   * All internal variables are reset, the old input stream 
   * <b>cannot</b> be reused (internal buffer is discarded and lost).
   * Lexical state is set to <tt>YY_INITIAL</tt>.
   *
   * @param reader   the new input stream 
   */
  final public void yyreset(java.io.Reader reader) throws java.io.IOException {
    yyclose();
    yy_reader = reader;
    yy_atBOL  = true;
    yy_atEOF  = false;
    yy_endRead = yy_startRead = 0;
    yy_currentPos = yy_markedPos = yy_pushbackPos = 0;
    yyline = yychar = yycolumn = 0;
    yy_lexical_state = YYINITIAL;