# Yylex.java

    /* The following code was generated by JFlex 1.4.3 on 9/29/19 10:52 AM */

    /*
     * Copyright 2011, 2012 Odysseus Software GmbH
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *     http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License. ackage org.apache.synapse.commons.staxon.core.json.stream.impl;
     */
    package org.apache.synapse.commons.staxon.core.json.stream.impl;

    @SuppressWarnings("unused")

    /**
     * This class is a scanner generated by
     * <a href="http://www.jflex.de/">JFlex</a> 1.4.3
     * on 9/29/19 10:52 AM from the specification file
     * <tt>/home/jenkins/workspace/forked-dependencies/wso2-synapse/target/checkout/modules/commons/src/main/jflex/Yylex.flex</tt>
     */
    final class Yylex implements JsonStreamSourceImpl.Scanner {

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

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

      /** lexical states */
      private static final int STRING = 2;
      private static final int YYINITIAL = 0;

      /**
       * ZZ_LEXSTATE[l] is the state in the DFA for the lexical state l
       * ZZ_LEXSTATE[l+1] is the state in the DFA for the lexical state l
       *                  at the beginning of a line
       * l is of the form l = 2*k, k a non negative integer
       */
      private static final int ZZ_LEXSTATE[] = {
         0,  0,  1, 1
      };

      /**
       * Translates characters to character classes
       */
      private static final String ZZ_CMAP_PACKED =
        "\10\0\2\1\1\35\2\0\1\32\22\0\1\1\1\0\1\31\10\0"+
        "\1\7\1\13\1\2\1\5\1\33\1\3\11\4\1\14\6\0\4\12"+
        "\1\6\1\12\24\0\1\15\1\10\1\16\3\0\1\27\1\34\2\12"+
        "\1\25\1\26\5\0\1\22\1\0\1\21\3\0\1\24\1\30\1\23"+
        "\1\11\5\0\1\17\1\0\1\20\uff82\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 =
        "\2\0\1\1\1\2\1\1\2\3\1\4\1\5\1\6"+
        "\1\7\1\10\1\11\3\1\1\12\1\13\1\1\1\14"+
        "\5\0\1\15\1\0\1\16\1\17\1\20\1\21\1\22"+
        "\1\23\1\24\1\3\1\0\1\3\4\0\1\25\1\26"+
        "\2\0\1\27\1\0\1\30";

      private static int [] zzUnpackAction() {
        int [] result = new int[48];
        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\36\0\74\0\74\0\132\0\170\0\226\0\74"+
        "\0\74\0\74\0\74\0\74\0\74\0\264\0\322\0\360"+
        "\0\74\0\u010e\0\u012c\0\74\0\u014a\0\u0168\0\u0186\0\u01a4"+
        "\0\u01c2\0\74\0\u01e0\0\74\0\74\0\74\0\74\0\74"+
        "\0\74\0\74\0\u01fe\0\u021c\0\u021c\0\u023a\0\u0258\0\u0276"+
        "\0\u0294\0\74\0\74\0\u02b2\0\u02d0\0\74\0\u02ee\0\74";

      private static int [] zzUnpackRowMap() {
        int [] result = new int[48];
        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\3\1\4\1\5\1\6\1\7\6\3\1\10\1\11"+
        "\1\12\1\13\1\14\1\15\1\16\1\3\1\17\2\3"+
        "\1\20\2\3\1\21\1\4\2\3\1\4\10\22\1\23"+
        "\20\22\1\24\1\3\2\22\42\0\1\6\1\7\36\0"+
        "\1\25\1\26\16\0\1\26\13\0\2\7\1\25\1\26"+
        "\16\0\1\26\21\0\1\27\50\0\1\30\40\0\1\31"+
        "\6\0\10\22\1\0\20\22\2\0\2\22\11\0\1\32"+
        "\1\33\7\0\1\34\1\0\1\35\1\36\1\0\1\37"+
        "\2\0\1\40\1\0\1\41\1\42\4\0\2\43\33\0"+
        "\1\44\2\45\2\0\1\44\50\0\1\46\24\0\1\47"+
        "\46\0\1\50\16\0\2\51\1\0\1\51\3\0\1\51"+
        "\12\0\3\51\4\0\1\51\4\0\2\43\1\0\1\26"+
        "\16\0\1\26\13\0\2\45\53\0\1\52\40\0\1\53"+
        "\40\0\1\54\10\0\2\55\1\0\1\55\3\0\1\55"+
        "\12\0\3\55\4\0\1\55\26\0\1\56\13\0\2\57"+
        "\1\0\1\57\3\0\1\57\12\0\3\57\4\0\1\57"+
        "\4\0\2\60\1\0\1\60\3\0\1\60\12\0\3\60"+
        "\4\0\1\60\1\0";

      private static int [] zzUnpackTrans() {
        int [] result = new int[780];
        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 =
        "\2\0\2\11\3\1\6\11\3\1\1\11\2\1\1\11"+
        "\5\0\1\11\1\0\7\11\1\1\1\0\1\1\4\0"+
        "\2\11\2\0\1\11\1\0\1\11";

      private static int [] zzUnpackAttribute() {
        int [] result = new int[48];
        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 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;

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

      /* user code: */
    	private StringBuilder builder = new StringBuilder();
    	private String text = null;

    	@Override
    	public String getText() { return text; }
    	@Override
    	public Symbol nextSymbol() throws java.io.IOException { return yylex(); }
    	@Override
    	public void close() throws java.io.IOException { yyclose(); }
    	@Override
    	public int getCharOffset() { return yychar; }
    	@Override
    	public int getLineNumber() { return yyline; }
    	@Override
    	public int getColumnNumber() { return yycolumn; }

      /**
       * 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 < 92) {
          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;
          zzStartRead = 0;
        }

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

        /* finally: fill the buffer with new input */
        int numRead = zzReader.read(zzBuffer, zzEndRead,
                                                zzBuffer.length-zzEndRead);

        if (numRead > 0) {
          zzEndRead+= numRead;
          return false;
        }
        // unlikely but not impossible: read 0 characters, but not at end of stream
        if (numRead == 0) {
          int c = zzReader.read();
          if (c == -1) {
            return true;
          } else {
            zzBuffer[zzEndRead++] = (char) c;
            return false;
          }
        }

    	// numRead < 0
        return true;
      }

      /**
       * Closes the input stream.
       */
      private final void yyclose() throws java.io.IOException {
        zzAtEOF = true;            /* indicate end of file */
        zzEndRead = zzStartRead;  /* invalidate buffer    */

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

      /**
       * Resets the scanner to read from a new input stream.
       * Does not close the old reader.
       *
       * 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>ZZ_INITIAL</tt>.
       *
       * @param reader   the new input stream
       */
      private final void yyreset(java.io.Reader reader) {
        zzReader = reader;
        zzAtBOL  = true;
        zzAtEOF  = false;
        zzEOFDone = false;
        zzEndRead = zzStartRead = 0;
        zzCurrentPos = zzMarkedPos = 0;
        yyline = yychar = yycolumn = 0;
        zzLexicalState = YYINITIAL;
      }

      /**
       * Returns the current lexical state.
       */
      private final int yystate() {
        return zzLexicalState;
      }

      /**
       * Enters a new lexical state
       *
       * @param newState the new lexical state
       */
      private final void yybegin(int newState) {
        zzLexicalState = newState;
      }

      /**
       * Returns the text matched by the current regular expression.
       */
      private final String yytext() {
        return new String( zzBuffer, zzStartRead, zzMarkedPos-zzStartRead );
      }

      /**
       * Returns the character at position <tt>pos</tt> from the
       * matched text.
       *
       * It is equivalent to yytext().charAt(pos), but faster
       *
       * @param pos the position of the character to fetch.
       *            A value from 0 to yylength()-1.
       *
       * @return the character at position pos
       */
      private final char yycharat(int pos) {
        return zzBuffer[zzStartRead+pos];
      }

      /**
       * Returns the length of the matched text region.
       */
      private final int yylength() {
        return zzMarkedPos-zzStartRead;
      }

      /**
       * Reports an error that occured while scanning.
       *
       * In a wellformed scanner (no or only correct usage of
       * yypushback(int) and a match-all fallback rule) this method
       * will only be called with things that "Can't Possibly Happen".
       * If this method is called, something is seriously wrong
       * (e.g. a JFlex bug producing a faulty scanner etc.).
       *
       * Usual syntax/scanner level error handling should be done
       * in error fallback rules.
       *
       * @param   errorCode  the code of the errormessage to display
       */
      private void zzScanError(int errorCode) {
        String message;
        try {
          message = ZZ_ERROR_MSG[errorCode];
        }
        catch (ArrayIndexOutOfBoundsException e) {
          message = ZZ_ERROR_MSG[ZZ_UNKNOWN_ERROR];
        }

        throw new Error(message);
      }

      /**
       * Pushes the specified amount of characters back into the input stream.
       *
       * They will be read again by then next call of the scanning method
       *
       * @param number  the number of characters to be read again.
       *                This number must not be greater than yylength()!
       */
      private void yypushback(int number)  {
        if ( number > yylength() )
          zzScanError(ZZ_PUSHBACK_2BIG);

        zzMarkedPos -= number;
      }

      /**
       * Resumes scanning until the next regular expression is matched,
       * the end of input is encountered or an I/O-Error occurs.
       *
       * @return      the next token
       * @exception   java.io.IOException  if any I/O-Error occurs
       */
      private Symbol yylex() throws java.io.IOException {
        int zzInput;
        int zzAction;

        // cached fields:
        int zzCurrentPosL;
        int zzMarkedPosL;
        int zzEndReadL = zzEndRead;
        char [] zzBufferL = zzBuffer;
        char [] zzCMapL = ZZ_CMAP;

        int [] zzTransL = ZZ_TRANS;
        int [] zzRowMapL = ZZ_ROWMAP;
        int [] zzAttrL = ZZ_ATTRIBUTE;

        while (true) {
          zzMarkedPosL = zzMarkedPos;

          yychar+= zzMarkedPosL-zzStartRead;

          boolean zzR = false;
          for (zzCurrentPosL = zzStartRead; zzCurrentPosL < zzMarkedPosL;
                                                                 zzCurrentPosL++) {
            switch (zzBufferL[zzCurrentPosL]) {
            case '\u000B':
            case '\u000C':
            case '\u0085':
            case '\u2028':
            case '\u2029':
              yyline++;
              yycolumn = 0;
              zzR = false;
              break;
            case '\r':
              yyline++;
              yycolumn = 0;
              zzR = true;
              break;
            case '\n':
              if (zzR)
                zzR = false;
              else {
                yyline++;
                yycolumn = 0;
              }
              break;
            default:
              zzR = false;
              yycolumn++;
            }
          }

          if (zzR) {
            // peek one character ahead if it is \n (if we have counted one line too much)
            boolean zzPeek;
            if (zzMarkedPosL < zzEndReadL)
              zzPeek = zzBufferL[zzMarkedPosL] == '\n';
            else if (zzAtEOF)
              zzPeek = false;
            else {
              boolean eof = zzRefill();
              zzEndReadL = zzEndRead;
              zzMarkedPosL = zzMarkedPos;
              zzBufferL = zzBuffer;
              if (eof)
                zzPeek = false;
              else
                zzPeek = zzBufferL[zzMarkedPosL] == '\n';
            }
            if (zzPeek) yyline--;
          }
          zzAction = -1;

          zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;

          zzState = ZZ_LEXSTATE[zzLexicalState];

          zzForAction: {
            while (true) {

              if (zzCurrentPosL < zzEndReadL)
                zzInput = zzBufferL[zzCurrentPosL++];
              else if (zzAtEOF) {
                zzInput = YYEOF;
                break zzForAction;
              }
              else {
                // store back cached positions
                zzCurrentPos  = zzCurrentPosL;
                zzMarkedPos   = zzMarkedPosL;
                boolean eof = zzRefill();
                // get translated positions and possibly new buffer
                zzCurrentPosL  = zzCurrentPos;
                zzMarkedPosL   = zzMarkedPos;
                zzBufferL      = zzBuffer;
                zzEndReadL     = zzEndRead;
                if (eof) {
                  zzInput = YYEOF;
                  break zzForAction;
                }
                else {
                  zzInput = zzBufferL[zzCurrentPosL++];
                }
              }
              int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
              if (zzNext == -1) break zzForAction;
              zzState = zzNext;

              int zzAttributes = zzAttrL[zzState];
              if ( (zzAttributes & 1) == 1 ) {
                zzAction = zzState;
                zzMarkedPosL = zzCurrentPosL;
                if ( (zzAttributes & 8) == 8 ) break zzForAction;
              }

            }
          }

          // store back cached position
          zzMarkedPos = zzMarkedPosL;

          switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
            case 22:
              { text = "true"; return Symbol.TRUE;
              }
            case 25: break;
            case 7:
              { text = null; return Symbol.END_ARRAY;
              }
            case 26: break;
            case 1:
              { throw new java.io.IOException("Illegal character: <" + yytext() + ">");
              }
            case 27: break;
            case 16:
              { builder.append('\r');
              }
            case 28: break;
            case 24:
              { builder.append(Character.toChars(Integer.parseInt(yytext().substring(2), 16)));
              }
            case 29: break;
            case 23:
              { text = "false"; return Symbol.FALSE;
              }
            case 30: break;
            case 18:
              { builder.append('\"');
              }
            case 31: break;
            case 12:
              { text = builder.toString(); yybegin(YYINITIAL); return Symbol.STRING;
              }
            case 32: break;
            case 10:
              { builder.setLength(0); yybegin(STRING);
              }
            case 33: break;
            case 21:
              { text = "null"; return Symbol.NULL;
              }
            case 34: break;
            case 19:
              { builder.append('/');
              }
            case 35: break;
            case 17:
              { builder.append('\f');
              }
            case 36: break;
            case 6:
              { text = null; return Symbol.START_ARRAY;
              }
            case 37: break;
            case 15:
              { builder.append('\t');
              }
            case 38: break;
            case 8:
              { text = null; return Symbol.START_OBJECT;
              }
            case 39: break;
            case 9:
              { text = null; return Symbol.END_OBJECT;
              }
            case 40: break;
            case 4:
              { text = null; return Symbol.COMMA;
              }
            case 41: break;
            case 14:
              { builder.append('\n');
              }
            case 42: break;
            case 11:
              { builder.append(yytext());
              }
            case 43: break;
            case 3:
              { text = yytext(); return Symbol.NUMBER;
              }
            case 44: break;
            case 20:
              { builder.append('\b');
              }
            case 45: break;
            case 5:
              { text = null; return Symbol.COLON;
              }
            case 46: break;
            case 13:
              { builder.append('\\');
              }
            case 47: break;
            case 2:
              { /* ignore whitespace */
              }
            case 48: break;
            default:
              if (zzInput == YYEOF && zzStartRead == zzCurrentPos) {
                zzAtEOF = true;
                  {
                    text = null; return Symbol.EOF;
                  }
              }
              else {
                zzScanError(ZZ_NO_MATCH);
              }
          }
        }
      }

    }