yylex.java

A Java API to read, write and modify Excel spreadsheets

/* The following code was generated by JFlex 1.4.1 on 25/11/08 00:40 */

/*********************************************************************
*
*      Copyright (C) 2002 Andrew Khan
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***************************************************************************/

package jxl.biff.formula;

/**
 * This file is generated by JLex.  Do not alter the contents of this file
 * because changes will be overridden
 */

import jxl.biff.WorkbookMethods;


/**
 * This class is a scanner generated by 
 * <a href="http://www.jflex.de/">JFlex</a> 1.4.1
 * on 25/11/08 00:40 from the specification file
 * <tt>xlformula.flex</tt>
 */
class Yylex {

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

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

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

  /** 
   * Translates characters to character classes
   */
  private static final String ZZ_CMAP_PACKED = 
    "\10\0\3\25\25\0\1\25\1\24\1\21\1\26\1\10\2\0\1\22"+
    "\1\5\1\6\1\41\1\37\1\4\1\40\1\7\1\33\1\34\11\2"+
    "\1\3\1\0\1\44\1\43\1\42\1\36\1\0\1\16\2\1\1\30"+
    "\1\14\1\15\2\1\1\31\2\1\1\17\1\35\1\27\3\1\1\12"+
    "\1\20\1\11\1\13\1\32\4\1\4\0\1\23\1\0\32\1\uff85\0";

  /** 
   * Translates characters to character classes
   */
  private static final char [] ZZ_CMAP = zzUnpackCMap(ZZ_CMAP_PACKED);

  /** 
   * Translates DFA states to action switch labels.
   */
  private static final int [] ZZ_ACTION = zzUnpackAction();

  private static final String ZZ_ACTION_PACKED_0 =
    "\1\0\1\1\1\2\1\3\1\4\1\5\1\6\1\7"+
    "\1\0\2\2\1\10\1\0\1\11\1\0\1\12\1\13"+
    "\1\14\1\15\1\16\1\17\1\20\1\1\1\21\1\2"+
    "\1\22\1\0\1\23\1\0\1\2\3\0\2\2\5\0"+
    "\1\24\1\25\1\26\1\2\1\0\1\27\1\0\1\22"+
    "\2\0\1\30\1\0\2\2\10\0\1\27\1\0\1\31"+
    "\1\0\1\32\10\0\1\33\2\0\1\31\2\0\1\34"+
    "\4\0\1\35\3\0\1\35\1\0\1\36\1\0";

  private static int [] zzUnpackAction() {
    int [] result = new int[94];
    int offset = 0;
    offset = zzUnpackAction(ZZ_ACTION_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackAction(String packed, int offset, int [] result) {
    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++);
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }


  /** 
   * Translates a state to a row index in the transition table
   */
  private static final int [] ZZ_ROWMAP = zzUnpackRowMap();

  private static final String ZZ_ROWMAP_PACKED_0 =
    "\0\0\0\45\0\112\0\157\0\224\0\224\0\224\0\224"+
    "\0\271\0\336\0\u0103\0\224\0\u0128\0\224\0\u014d\0\224"+
    "\0\224\0\224\0\224\0\u0172\0\224\0\u0197\0\u01bc\0\224"+
    "\0\u01e1\0\u0206\0\u022b\0\224\0\u0250\0\u0275\0\u029a\0\u02bf"+
    "\0\u02e4\0\u0309\0\u032e\0\u0353\0\u0378\0\u039d\0\u03c2\0\u03e7"+
    "\0\224\0\224\0\224\0\u040c\0\u0431\0\u0456\0\u047b\0\u04a0"+
    "\0\u04c5\0\u04ea\0\u02bf\0\u050f\0\u0534\0\u0559\0\u057e\0\u05a3"+
    "\0\u05c8\0\u05ed\0\u0612\0\u0637\0\u065c\0\u0681\0\224\0\u06a6"+
    "\0\u06cb\0\u06cb\0\u040c\0\u06f0\0\u0715\0\u073a\0\u075f\0\u0784"+
    "\0\u07a9\0\u07ce\0\u07f3\0\u0818\0\u0818\0\u083d\0\u0862\0\u0887"+
    "\0\u08ac\0\224\0\u08d1\0\u08f6\0\u091b\0\u0940\0\u0965\0\u098a"+
    "\0\u09af\0\u09d4\0\224\0\u09f9\0\u0a1e\0\u0a1e";

  private static int [] zzUnpackRowMap() {
    int [] result = new int[94];
    int offset = 0;
    offset = zzUnpackRowMap(ZZ_ROWMAP_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackRowMap(String packed, int offset, int [] result) {
    int i = 0;  /* index in packed string  */
    int j = offset;  /* index in unpacked array */
    int l = packed.length();
    while (i < l) {
      int high = packed.charAt(i++) << 16;
      result[j++] = high | packed.charAt(i++);
    }
    return j;
  }

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

  private static final String ZZ_TRANS_PACKED_0 =
    "\1\0\1\3\1\4\1\5\1\6\1\7\1\10\1\0"+
    "\1\11\1\12\3\3\1\13\3\3\1\14\1\15\2\0"+
    "\1\16\1\17\4\3\1\20\1\4\1\3\1\0\1\21"+
    "\1\22\1\23\1\24\1\25\1\26\21\27\1\30\23\27"+
    "\1\0\1\31\1\32\1\33\1\0\1\34\2\0\1\35"+
    "\10\31\2\0\1\36\1\37\2\0\4\31\1\0\1\32"+
    "\1\31\11\0\1\4\4\0\1\40\24\0\1\4\56\0"+
    "\1\41\7\0\10\41\6\0\4\41\2\0\1\41\10\0"+
    "\1\31\1\32\1\33\1\0\1\34\2\0\1\35\1\31"+
    "\1\42\6\31\2\0\1\36\1\37\2\0\4\31\1\0"+
    "\1\32\1\31\10\0\1\31\1\32\1\33\1\0\1\34"+
    "\2\0\1\35\5\31\1\43\2\31\2\0\1\36\1\37"+
    "\2\0\4\31\1\0\1\32\1\31\7\0\22\15\1\44"+
    "\22\15\12\0\1\45\14\0\1\46\1\47\1\0\1\50"+
    "\55\0\1\51\43\0\1\52\1\53\1\0\21\27\1\0"+
    "\23\27\1\0\1\54\1\32\1\33\1\0\1\34\2\0"+
    "\1\35\10\54\2\0\1\36\1\37\2\0\4\54\1\0"+
    "\1\32\1\54\10\0\1\36\1\32\1\55\5\0\10\36"+
    "\2\0\1\36\3\0\4\36\1\0\1\32\1\36\10\0"+
    "\1\56\6\0\1\57\10\56\6\0\4\56\2\0\1\56"+
    "\11\0\1\60\31\0\1\60\11\0\2\36\6\0\10\36"+
    "\2\0\1\36\3\0\4\36\1\0\2\36\10\0\1\61"+
    "\6\0\1\62\10\61\6\0\4\61\2\0\1\61\11\0"+
    "\1\63\31\0\1\63\11\0\1\64\1\60\1\33\4\0"+
    "\1\35\10\64\6\0\4\64\1\0\1\60\1\64\10\0"+
    "\1\54\1\32\1\33\1\0\1\34\2\0\1\35\2\54"+
    "\1\65\5\54\2\0\1\36\1\37\2\0\4\54\1\0"+
    "\1\32\1\54\10\0\1\54\1\32\1\33\1\0\1\34"+
    "\2\0\1\35\6\54\1\66\1\54\2\0\1\36\1\37"+
    "\2\0\4\54\1\0\1\32\1\54\33\0\1\67\34\0"+
    "\1\70\43\0\1\71\2\0\1\72\57\0\1\73\31\0"+
    "\1\74\27\0\1\54\1\36\2\0\1\34\3\0\10\54"+
    "\2\0\1\36\1\37\2\0\4\54\1\0\1\36\1\54"+
    "\10\0\1\75\6\0\1\76\10\75\6\0\4\75\2\0"+
    "\1\75\10\0\1\77\7\0\10\77\6\0\4\77\2\0"+
    "\1\77\10\0\1\56\7\0\10\56\6\0\4\56\2\0"+
    "\1\56\11\0\1\60\1\55\30\0\1\60\11\0\1\100"+
    "\1\101\5\0\1\102\10\100\6\0\4\100\1\0\1\101"+
    "\1\100\10\0\1\61\7\0\10\61\6\0\4\61\2\0"+
    "\1\61\11\0\1\60\1\33\4\0\1\35\23\0\1\60"+
    "\11\0\1\54\1\36\2\0\1\34\3\0\3\54\1\103"+
    "\4\54\2\0\1\36\1\37\2\0\4\54\1\0\1\36"+
    "\1\54\10\0\1\54\1\36\2\0\1\34\3\0\7\54"+
    "\1\65\2\0\1\36\1\37\2\0\4\54\1\0\1\36"+
    "\1\54\10\0\1\104\6\0\1\105\10\104\6\0\4\104"+
    "\2\0\1\104\24\0\1\106\46\0\1\107\15\0\1\106"+
    "\44\0\1\110\41\0\1\111\31\0\1\112\26\0\1\113"+
    "\1\114\5\0\1\115\10\113\6\0\4\113\1\0\1\114"+
    "\1\113\10\0\1\75\7\0\10\75\6\0\4\75\2\0"+
    "\1\75\11\0\1\101\5\0\1\102\23\0\1\101\12\0"+
    "\1\101\31\0\1\101\11\0\1\116\1\117\1\120\4\0"+
    "\1\121\10\116\6\0\4\116\1\0\1\117\1\116\10\0"+
    "\1\104\7\0\10\104\6\0\4\104\2\0\1\104\33\0"+
    "\1\122\37\0\1\106\41\0\1\123\63\0\1\124\24\0"+
    "\1\125\33\0\1\114\5\0\1\115\23\0\1\114\12\0"+
    "\1\114\31\0\1\114\12\0\1\117\1\120\4\0\1\121"+
    "\23\0\1\117\12\0\1\117\1\126\30\0\1\117\11\0"+
    "\1\127\6\0\1\130\10\127\6\0\4\127\2\0\1\127"+
    "\11\0\1\117\31\0\1\117\46\0\1\122\42\0\1\106"+
    "\24\0\1\106\31\0\1\131\6\0\1\132\10\131\6\0"+
    "\4\131\2\0\1\131\10\0\1\133\7\0\10\133\6\0"+
    "\4\133\2\0\1\133\10\0\1\127\7\0\10\127\6\0"+
    "\4\127\2\0\1\127\10\0\1\134\1\135\5\0\1\136"+
    "\10\134\6\0\4\134\1\0\1\135\1\134\10\0\1\131"+
    "\7\0\10\131\6\0\4\131\2\0\1\131\11\0\1\135"+
    "\5\0\1\136\23\0\1\135\12\0\1\135\31\0\1\135"+
    "\10\0";

  private static int [] zzUnpackTrans() {
    int [] result = new int[2627];
    int offset = 0;
    offset = zzUnpackTrans(ZZ_TRANS_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackTrans(String packed, int offset, int [] result) {
    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 result[j++] = value; while (--count > 0);
    }
    return j;
  }


  /* error codes */
  private static final int ZZ_UNKNOWN_ERROR = 0;
  private static final int ZZ_NO_MATCH = 1;
  private static final int ZZ_PUSHBACK_2BIG = 2;

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

  /**
   * ZZ_ATTRIBUTE[aState] contains the attributes of state <code>aState</code>
   */
  private static final int [] ZZ_ATTRIBUTE = zzUnpackAttribute();

  private static final String ZZ_ATTRIBUTE_PACKED_0 =
    "\1\0\3\1\4\11\1\0\2\1\1\11\1\0\1\11"+
    "\1\0\4\11\1\1\1\11\2\1\1\11\2\1\1\0"+
    "\1\11\1\0\1\1\3\0\2\1\5\0\3\11\1\1"+
    "\1\0\1\1\1\0\1\1\2\0\1\1\1\0\2\1"+
    "\10\0\1\11\1\0\1\1\1\0\1\1\10\0\1\1"+
    "\2\0\1\1\2\0\1\11\4\0\1\1\3\0\1\11"+
    "\1\0\1\1\1\0";

  private static int [] zzUnpackAttribute() {
    int [] result = new int[94];
    int offset = 0;
    offset = zzUnpackAttribute(ZZ_ATTRIBUTE_PACKED_0, offset, result);
    return result;
  }

  private static int zzUnpackAttribute(String packed, int offset, int [] result) {
    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++);
      do result[j++] = value; while (--count > 0);
    }
    return j;
  }

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

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

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

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

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

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

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

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

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

  /** 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;

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

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

  /* user code: */
  int getPos() { return yychar ; }
  private boolean emptyString;
  private ExternalSheet externalSheet;
  private WorkbookMethods nameTable;

  void setExternalSheet(ExternalSheet es)
  {
    externalSheet = es;
  }

  void setNameTable(WorkbookMethods nt)
  {
    nameTable = nt;
  }


  /**
   * 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.
   */
  Yylex(java.io.Reader in) {
    this.zzReader = 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.
   */
  Yylex(java.io.InputStream in) {
    this(new java.io.InputStreamReader(in));
  }

  /** 
   * Unpacks the compressed character translation table.
   *
   * @param packed   the packed character translation table
   * @return         the unpacked character translation table
   */
  private static char [] zzUnpackCMap(String packed) {
    char [] map = new char[0x10000];
    int i = 0;  /* index in packed string  */
    int j = 0;  /* index in unpacked array */
    while (i < 100) {
      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   java.io.IOException  if any I/O-Error occurs
   */
  private boolean zzRefill() throws java.io.IOException {

    /* first: make room (if you can) */
    if (zzStartRead > 0) {
      System.arraycopy(zzBuffer, zzStartRead,
                       zzBuffer, 0,
                       zzEndRead-zzStartRead);

      /* translate stored positions */
      zzEndRead-= zzStartRead;
      zzCurrentPos-= zzStartRead;
      zzMarkedPos-= zzStartRead;
      zzPushbackPos-= zzStartRead;
      zzStartRead = 0;
    }

    /* is the buffer big enough? */
    if (zzCurrentPos >= zzBuffer.length) {
      /* if not: blow it up */