/* The following code was generated by JFlex 1.4.3 on 1.6.16 7:31 */

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

package org.netbeans.modules.languages.ini.lexer;

import org.netbeans.spi.lexer.LexerInput;
import org.netbeans.spi.lexer.LexerRestartInfo;
import org.netbeans.modules.web.common.api.ByteStack;

@org.netbeans.api.annotations.common.SuppressWarnings({"SF_SWITCH_FALLTHROUGH", "URF_UNREAD_FIELD", "DLS_DEAD_LOCAL_STORE", "DM_DEFAULT_ENCODING"})

/**
 * This class is a scanner generated by
 * <a href="http://www.jflex.de/">JFlex</a> 1.4.3
 * on 1.6.16 7:31 from the specification file
 * <tt>/home/gapon/worx/sun/nb-main/languages.ini/tools/IniColoringLexer.flex</tt>
 */
public class IniColoringLexer {

  /** This character denotes the end of file */
  public static final int YYEOF = LexerInput.EOF;

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

  /** lexical states */
  public static final int ST_HIGHLIGHTING_ERROR = 12;
  public static final int ST_IN_VALUE = 10;
  public static final int ST_IN_BLOCK = 2;
  public static final int YYINITIAL = 0;
  public static final int ST_IN_KEY = 8;
  public static final int ST_IN_SECTION = 4;
  public static final int ST_AFTER_SECTION = 6;

  /**
   * 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,  2,  2,  3,  3,  4,  4,  5,  5,  6, 6
  };

  /**
   * Translates characters to character classes
   */
  private static final String ZZ_CMAP_PACKED =
    "\11\0\1\1\1\3\2\0\1\2\22\0\1\1\1\0\1\4\4\0"+
    "\1\6\23\0\1\10\1\0\1\7\35\0\1\11\1\5\1\12\uffa2\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 =
    "\7\0\2\1\1\2\3\3\1\4\1\2\1\5\1\6"+
    "\1\7\1\10\1\3\2\11\1\12\1\3\1\13\1\14"+
    "\1\3\2\14\1\15\1\10\1\11\1\10\1\0\1\16"+
    "\1\0\1\14\1\0\1\14\2\0";

  private static int [] zzUnpackAction() {
    int [] result = new int[41];
    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\13\0\26\0\41\0\54\0\67\0\102\0\115"+
    "\0\130\0\115\0\143\0\156\0\115\0\171\0\204\0\217"+
    "\0\115\0\115\0\232\0\245\0\260\0\115\0\273\0\306"+
    "\0\115\0\321\0\334\0\347\0\362\0\375\0\115\0\u0108"+
    "\0\u0113\0\204\0\115\0\u011e\0\u0129\0\u0134\0\u013f\0\u014a"+
    "\0\u0155";

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

  private static int [] zzUnpackTrans() {
    int [] result = new int[352];
    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 =
    "\7\0\1\11\1\1\1\11\2\1\1\11\3\1\2\11"+
    "\3\1\1\11\2\1\1\11\5\1\1\11\2\1\1\0"+
    "\1\11\1\0\1\1\1\0\1\1\2\0";

  private static int [] zzUnpackAttribute() {
    int [] result = new int[41];
    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 = false;

  /* user code: */

    private ByteStack stack = new ByteStack();

    private LexerInput input;

    public IniColoringLexer(LexerRestartInfo info) {
        this.input = info.input();
        if(info.state() != null) {
            //reset state
            setState((LexerState) info.state());
        } else {
            zzState = zzLexicalState = YYINITIAL;
            stack.clear();
        }

    }

    public static final class LexerState  {
        final ByteStack stack;
        /** the current state of the DFA */
        final int zzState;
        /** the current lexical state */
        final int zzLexicalState;

        LexerState(ByteStack stack, int zzState, int zzLexicalState) {
            this.stack = stack;
            this.zzState = zzState;
            this.zzLexicalState = zzLexicalState;
        }

        @Override
        public boolean equals(Object obj) {
            if (this == obj) {
                return true;
            }
            if (obj == null || obj.getClass() != this.getClass()) {
                return false;
            }
            LexerState state = (LexerState) obj;
            return (this.stack.equals(state.stack)
                && (this.zzState == state.zzState)
                && (this.zzLexicalState == state.zzLexicalState));
        }

        @Override
        public int hashCode() {
            int hash = 11;
            hash = 31 * hash + this.zzState;
            hash = 31 * hash + this.zzLexicalState;
            if (stack != null) {
                hash = 31 * hash + this.stack.hashCode();
            }
            return hash;
        }
    }

    public LexerState getState() {
        return new LexerState(stack.copyOf(), zzState, zzLexicalState);
    }

    public void setState(LexerState state) {
        this.stack.copyFrom(state.stack);
        this.zzState = state.zzState;
        this.zzLexicalState = state.zzLexicalState;
    }

    protected int getZZLexicalState() {
        return zzLexicalState;
    }

    protected void popState() {
		yybegin(stack.pop());
	}

	protected void pushState(final int state) {
		stack.push(getZZLexicalState());
		yybegin(state);
	}


 // End user code



  /**
   * 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.
   */
  public IniColoringLexer(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.
   */
  public IniColoringLexer(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 < 40) {
      int  count = packed.charAt(i++);
      char value = packed.charAt(i++);
      do map[j++] = value; while (--count > 0);
    }
    return map;
  }



  /**
   * Closes the input stream.
   */
  public 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
   */
  public final void yyreset(java.io.Reader reader) {
    zzReader = reader;
    zzAtBOL  = true;
    zzAtEOF  = false;
    zzEndRead = zzStartRead = 0;
    zzCurrentPos = zzMarkedPos = zzPushbackPos = 0;
    yyline = yychar = yycolumn = 0;
    zzLexicalState = YYINITIAL;
  }


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


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


  /**
   * Returns the text matched by the current regular expression.
   */
  public final String yytext() {
    return input.readText().toString();
  }


  /**
   * 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
   */
  public final char yycharat(int pos) {
     return input.readText().charAt(pos);
  }


  /**
   * Returns the length of the matched text region.
   */
  public final int yylength() {
    return input.readLength();
  }


  /**
   * 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()!
   */
  public void yypushback(int number)  {
    if ( number > yylength() )
      zzScanError(ZZ_PUSHBACK_2BIG);

    input.backup(number);
    //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
   */
  public IniTokenId nextToken() 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;

      zzAction = -1;

      //zzCurrentPosL = zzCurrentPos = zzStartRead = zzMarkedPosL;
      int tokenLength = 0;

      zzState = ZZ_LEXSTATE[zzLexicalState];


      zzForAction: {
        while (true) {
            zzInput = input.read();

            if(zzInput == LexerInput.EOF) {
                //end of input reached
                zzInput = YYEOF;
                break zzForAction;
                //notice: currently LexerInput.EOF == YYEOF
            }

          int zzNext = zzTransL[ zzRowMapL[zzState] + zzCMapL[zzInput] ];
          if (zzNext == -1) break zzForAction;
          zzState = zzNext;

          int zzAttributes = zzAttrL[zzState];
          if ( (zzAttributes & 1) == 1 ) {
            zzAction = zzState;
            tokenLength = input.readLength();
            if ( (zzAttributes & 8) == 8 ) break zzForAction;
          }

        }
      }

      // store back cached position
      if(zzInput != YYEOF) {
         input.backup(input.readLength() - tokenLength);
      }

      switch (zzAction < 0 ? zzAction : ZZ_ACTION[zzAction]) {
        case 13:
          { popState();
        return IniTokenId.INI_COMMENT;
          }
        case 15: break;
        case 4:
          { return IniTokenId.INI_COMMENT;
          }
        case 16: break;
        case 6:
          { return IniTokenId.INI_SECTION_DELIM;
          }
        case 17: break;
        case 7:
          { popState();
        pushState(ST_AFTER_SECTION);
        return IniTokenId.INI_SECTION_DELIM;
          }
        case 18: break;
        case 1:
          { yypushback(yylength());
    pushState(ST_IN_BLOCK);
          }
        case 19: break;
        case 11:
          { popState();
        pushState(ST_IN_VALUE);
        return IniTokenId.INI_EQUALS;
          }
        case 20: break;
        case 14:
          { yypushback(yylength());
        pushState(ST_IN_SECTION);
          }
        case 21: break;
        case 10:
          { return IniTokenId.INI_KEY;
          }
        case 22: break;
        case 5:
          { return IniTokenId.INI_SECTION;
          }
        case 23: break;
        case 8:
          { return IniTokenId.INI_ERROR;
          }
        case 24: break;
        case 12:
          { return IniTokenId.INI_VALUE;
          }
        case 25: break;
        case 2:
          { pushState(ST_IN_KEY);
        yypushback(yylength());
          }
        case 26: break;
        case 9:
          { popState();
        return IniTokenId.INI_WHITESPACE;
          }
        case 27: break;
        case 3:
          { return IniTokenId.INI_WHITESPACE;
          }
        case 28: break;
        default:
          if (zzInput == YYEOF)
            //zzAtEOF = true;
              {         if(input.readLength() > 0) {
            // backup eof
            input.backup(1);
            //and return the text as error token
            return IniTokenId.INI_ERROR;
        } else {
            return null;
        }
 }

          else {
            zzScanError(ZZ_NO_MATCH);
          }
      }
    }
  }


}
