pgnlexer.java

一个java做的国际象棋小游戏

// $ANTLR 2.7.1: "pgn.g" -> "PGNLexer.java"$

package de.java_chess.javaChess.pgn;

import antlr.*;
import antlr.collections.*;  

import java.io.InputStream;
import antlr.TokenStreamException;
import antlr.TokenStreamIOException;
import antlr.TokenStreamRecognitionException;
import antlr.CharStreamException;
import antlr.CharStreamIOException;
import antlr.ANTLRException;
import java.io.Reader;
import java.util.Hashtable;
import antlr.CharScanner;
import antlr.InputBuffer;
import antlr.ByteBuffer;
import antlr.CharBuffer;
import antlr.Token;
import antlr.CommonToken;
import antlr.RecognitionException;
import antlr.NoViableAltForCharException;
import antlr.MismatchedCharException;
import antlr.TokenStream;
import antlr.ANTLRHashString;
import antlr.LexerSharedInputState;
import antlr.collections.impl.BitSet;
import antlr.SemanticException;

/**
 * A lexer for PGN files.
 */
public class PGNLexer extends antlr.CharScanner implements PGNTokenTypes, TokenStream
 {
public PGNLexer(InputStream in) {
	this(new ByteBuffer(in));
}
public PGNLexer(Reader in) {
	this(new CharBuffer(in));
}
public PGNLexer(InputBuffer ib) {
	this(new LexerSharedInputState(ib));
}
public PGNLexer(LexerSharedInputState state) {
	super(state);
	literals = new Hashtable();
	literals.put(new ANTLRHashString("x", this), new Integer(9));
caseSensitiveLiterals = true;
setCaseSensitive(true);
}

public Token nextToken() throws TokenStreamException {
	Token theRetToken=null;
tryAgain:
	for (;;) {
		Token _token = null;
		int _ttype = Token.INVALID_TYPE;
		resetText();
		try {   // for char stream error handling
			try {   // for lexical error handling
				switch ( LA(1)) {
				case '.':
				{
					mDOT(true);
					theRetToken=_returnToken;
					break;
				}
				case ';':
				{
					mSL_COMMENT(true);
					theRetToken=_returnToken;
					break;
				}
				case '"':
				{
					mSTRING_LITERAL(true);
					theRetToken=_returnToken;
					break;
				}
				case 'a':  case 'b':  case 'c':  case 'd':
				case 'e':  case 'f':  case 'g':  case 'h':
				{
					mSQUARE_NAME(true);
					theRetToken=_returnToken;
					break;
				}
				case 'B':  case 'K':  case 'N':  case 'P':
				case 'Q':  case 'R':
				{
					mFIGURINE_LETTER_CODE(true);
					theRetToken=_returnToken;
					break;
				}
				case '1':  case '2':  case '3':  case '4':
				case '5':  case '6':  case '7':  case '8':
				case '9':
				{
					mMOVE_INDEX(true);
					theRetToken=_returnToken;
					break;
				}
				default:
				{
					if (LA(1)==EOF_CHAR) {uponEOF(); _returnToken = makeToken(Token.EOF_TYPE);}
				else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());}
				}
				}
				if ( _returnToken==null ) continue tryAgain; // found SKIP token
				_ttype = _returnToken.getType();
				_returnToken.setType(_ttype);
				return _returnToken;
			}
			catch (RecognitionException e) {
				throw new TokenStreamRecognitionException(e);
			}
		}
		catch (CharStreamException cse) {
			if ( cse instanceof CharStreamIOException ) {
				throw new TokenStreamIOException(((CharStreamIOException)cse).io);
			}
			else {
				throw new TokenStreamException(cse.getMessage());
			}
		}
	}
}

	public final void mDOT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = DOT;
		int _saveIndex;
		
		match('.');
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	public final void mSL_COMMENT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = SL_COMMENT;
		int _saveIndex;
		
		match(";");
		{
		_loop25:
		do {
			if ((_tokenSet_0.member(LA(1)))) {
				{
				match(_tokenSet_0);
				}
			}
			else {
				break _loop25;
			}
			
		} while (true);
		}
		{
		if ((LA(1)=='\r') && (LA(2)=='\n')) {
			match("\r\n");
		}
		else if ((LA(1)=='\n')) {
			match("\n");
		}
		else if ((LA(1)=='\r') && (true)) {
			match("\r");
		}
		else {
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		
		}
		_ttype = Token.SKIP; newline();
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	public final void mSTRING_LITERAL(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = STRING_LITERAL;
		int _saveIndex;
		
		{
		match('"');
		{
		_loop31:
		do {
			if ((_tokenSet_1.member(LA(1)))) {
				{
				match(_tokenSet_1);
				}
			}
			else {
				break _loop31;
			}
			
		} while (true);
		}
		match('"');
		}
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	public final void mSQUARE_NAME(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = SQUARE_NAME;
		int _saveIndex;
		
		matchRange('a','h');
		matchRange('1','8');
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	public final void mFIGURINE_LETTER_CODE(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = FIGURINE_LETTER_CODE;
		int _saveIndex;
		
		{
		switch ( LA(1)) {
		case 'P':
		{
			match('P');
			break;
		}
		case 'N':
		{
			match('N');
			break;
		}
		case 'B':
		{
			match('B');
			break;
		}
		case 'R':
		{
			match('R');
			break;
		}
		case 'Q':
		{
			match('Q');
			break;
		}
		case 'K':
		{
			match('K');
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	public final void mMOVE_INDEX(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = MOVE_INDEX;
		int _saveIndex;
		
		matchRange('1','9');
		{
		_loop37:
		do {
			if (((LA(1) >= '0' && LA(1) <= '9'))) {
				matchRange('0','9');
			}
			else {
				break _loop37;
			}
			
		} while (true);
		}
		mDOT(false);
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	
	private static final long _tokenSet_0_data_[] = { -9224L, -1L, -1L, -1L, 0L, 0L, 0L, 0L };
	public static final BitSet _tokenSet_0 = new BitSet(_tokenSet_0_data_);
	private static final long _tokenSet_1_data_[] = { -17179869192L, -268435457L, -1L, -1L, 0L, 0L, 0L, 0L };
	public static final BitSet _tokenSet_1 = new BitSet(_tokenSet_1_data_);
	
	}