javalexer.java

linux下建立JAVA虚拟机的源码KAFFE

				int _cnt140=0;
				_loop140:
				do {
					if (((LA(1) >= '0' && LA(1) <= '9'))) {
						matchRange('0','9');
					}
					else {
						if ( _cnt140>=1 ) { break _loop140; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
					}
					
					_cnt140++;
				} while (true);
				}
				{
				if ((LA(1)=='E'||LA(1)=='e')) {
					mEXPONENT(false);
				}
				else {
				}
				
				}
				{
				if ((LA(1)=='D'||LA(1)=='F'||LA(1)=='d'||LA(1)=='f')) {
					mFLOAT_SUFFIX(true);
					f1=_returnToken;
					if ( inputState.guessing==0 ) {
						t=f1;
					}
				}
				else {
				}
				
				}
				if ( inputState.guessing==0 ) {
					
									if (t != null && t.getText().toUpperCase().indexOf('F')>=0) {
						_ttype = NUM_FLOAT;
									}
									else {
						_ttype = NUM_DOUBLE; // assume double
									}
									
				}
			}
			else {
			}
			
			}
			break;
		}
		case '0':  case '1':  case '2':  case '3':
		case '4':  case '5':  case '6':  case '7':
		case '8':  case '9':
		{
			{
			switch ( LA(1)) {
			case '0':
			{
				match('0');
				if ( inputState.guessing==0 ) {
					isDecimal = true;
				}
				{
				if ((LA(1)=='X'||LA(1)=='x')) {
					{
					switch ( LA(1)) {
					case 'x':
					{
						match('x');
						break;
					}
					case 'X':
					{
						match('X');
						break;
					}
					default:
					{
						throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
					}
					}
					}
					{
					int _cnt147=0;
					_loop147:
					do {
						if ((_tokenSet_4.member(LA(1))) && (true) && (true) && (true)) {
							mHEX_DIGIT(false);
						}
						else {
							if ( _cnt147>=1 ) { break _loop147; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
						}
						
						_cnt147++;
					} while (true);
					}
				}
				else {
					boolean synPredMatched152 = false;
					if ((((LA(1) >= '0' && LA(1) <= '9')) && (true) && (true) && (true))) {
						int _m152 = mark();
						synPredMatched152 = true;
						inputState.guessing++;
						try {
							{
							{
							int _cnt150=0;
							_loop150:
							do {
								if (((LA(1) >= '0' && LA(1) <= '9'))) {
									matchRange('0','9');
								}
								else {
									if ( _cnt150>=1 ) { break _loop150; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
								}
								
								_cnt150++;
							} while (true);
							}
							{
							switch ( LA(1)) {
							case '.':
							{
								match('.');
								break;
							}
							case 'E':  case 'e':
							{
								mEXPONENT(false);
								break;
							}
							case 'D':  case 'F':  case 'd':  case 'f':
							{
								mFLOAT_SUFFIX(false);
								break;
							}
							default:
							{
								throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
							}
							}
							}
							}
						}
						catch (RecognitionException pe) {
							synPredMatched152 = false;
						}
						rewind(_m152);
						inputState.guessing--;
					}
					if ( synPredMatched152 ) {
						{
						int _cnt154=0;
						_loop154:
						do {
							if (((LA(1) >= '0' && LA(1) <= '9'))) {
								matchRange('0','9');
							}
							else {
								if ( _cnt154>=1 ) { break _loop154; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
							}
							
							_cnt154++;
						} while (true);
						}
					}
					else if (((LA(1) >= '0' && LA(1) <= '7')) && (true) && (true) && (true)) {
						{
						int _cnt156=0;
						_loop156:
						do {
							if (((LA(1) >= '0' && LA(1) <= '7'))) {
								matchRange('0','7');
							}
							else {
								if ( _cnt156>=1 ) { break _loop156; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
							}
							
							_cnt156++;
						} while (true);
						}
					}
					else {
					}
					}
					}
					break;
				}
				case '1':  case '2':  case '3':  case '4':
				case '5':  case '6':  case '7':  case '8':
				case '9':
				{
					{
					matchRange('1','9');
					}
					{
					_loop159:
					do {
						if (((LA(1) >= '0' && LA(1) <= '9'))) {
							matchRange('0','9');
						}
						else {
							break _loop159;
						}
						
					} while (true);
					}
					if ( inputState.guessing==0 ) {
						isDecimal=true;
					}
					break;
				}
				default:
				{
					throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
				}
				}
				}
				{
				if ((LA(1)=='L'||LA(1)=='l')) {
					{
					switch ( LA(1)) {
					case 'l':
					{
						match('l');
						break;
					}
					case 'L':
					{
						match('L');
						break;
					}
					default:
					{
						throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
					}
					}
					}
					if ( inputState.guessing==0 ) {
						_ttype = NUM_LONG;
					}
				}
				else if (((LA(1)=='.'||LA(1)=='D'||LA(1)=='E'||LA(1)=='F'||LA(1)=='d'||LA(1)=='e'||LA(1)=='f'))&&(isDecimal)) {
					{
					switch ( LA(1)) {
					case '.':
					{
						match('.');
						{
						_loop164:
						do {
							if (((LA(1) >= '0' && LA(1) <= '9'))) {
								matchRange('0','9');
							}
							else {
								break _loop164;
							}
							
						} while (true);
						}
						{
						if ((LA(1)=='E'||LA(1)=='e')) {
							mEXPONENT(false);
						}
						else {
						}
						
						}
						{
						if ((LA(1)=='D'||LA(1)=='F'||LA(1)=='d'||LA(1)=='f')) {
							mFLOAT_SUFFIX(true);
							f2=_returnToken;
							if ( inputState.guessing==0 ) {
								t=f2;
							}
						}
						else {
						}
						
						}
						break;
					}
					case 'E':  case 'e':
					{
						mEXPONENT(false);
						{
						if ((LA(1)=='D'||LA(1)=='F'||LA(1)=='d'||LA(1)=='f')) {
							mFLOAT_SUFFIX(true);
							f3=_returnToken;
							if ( inputState.guessing==0 ) {
								t=f3;
							}
						}
						else {
						}
						
						}
						break;
					}
					case 'D':  case 'F':  case 'd':  case 'f':
					{
						mFLOAT_SUFFIX(true);
						f4=_returnToken;
						if ( inputState.guessing==0 ) {
							t=f4;
						}
						break;
					}
					default:
					{
						throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
					}
					}
					}
					if ( inputState.guessing==0 ) {
						
									if (t != null && t.getText().toUpperCase() .indexOf('F') >= 0) {
						_ttype = NUM_FLOAT;
									}
						else {
							           	_ttype = NUM_DOUBLE; // assume double
									}
									
					}
				}
				else {
				}
				
				}
				break;
			}
			default:
			{
				throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
			}
			}
			if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
				_token = makeToken(_ttype);
				_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
			}
			_returnToken = _token;
		}
		
	protected final void mEXPONENT(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = EXPONENT;
		int _saveIndex;
		
		{
		switch ( LA(1)) {
		case 'e':
		{
			match('e');
			break;
		}
		case 'E':
		{
			match('E');
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
		}
		}
		}
		{
		switch ( LA(1)) {
		case '+':
		{
			match('+');
			break;
		}
		case '-':
		{
			match('-');
			break;
		}
		case '0':  case '1':  case '2':  case '3':
		case '4':  case '5':  case '6':  case '7':
		case '8':  case '9':
		{
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
		}
		}
		}
		{
		int _cnt172=0;
		_loop172:
		do {
			if (((LA(1) >= '0' && LA(1) <= '9'))) {
				matchRange('0','9');
			}
			else {
				if ( _cnt172>=1 ) { break _loop172; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
			}
			
			_cnt172++;
		} while (true);
		}
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);
			_token.setText(new String(text.getBuffer(), _begin, text.length()-_begin));
		}
		_returnToken = _token;
	}
	
	protected final void mFLOAT_SUFFIX(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = FLOAT_SUFFIX;
		int _saveIndex;
		
		switch ( LA(1)) {
		case 'f':
		{
			match('f');
			break;
		}
		case 'F':
		{
			match('F');
			break;
		}
		case 'd':
		{
			match('d');
			break;
		}
		case 'D':
		{
			match('D');
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
		}
		}
		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[] mk_tokenSet_0() {
		long[] data = new long[2048];
		data[0]=-9224L;
		for (int i = 1; i<=1023; i++) { data[i]=-1L; }
		return data;
	}
	public static final BitSet _tokenSet_0 = new BitSet(mk_tokenSet_0());
	private static final long[] mk_tokenSet_1() {
		long[] data = new long[2048];
		data[0]=-4398046520328L;
		for (int i = 1; i<=1023; i++) { data[i]=-1L; }
		return data;
	}
	public static final BitSet _tokenSet_1 = new BitSet(mk_tokenSet_1());
	private static final long[] mk_tokenSet_2() {
		long[] data = new long[2048];
		data[0]=-549755823112L;
		data[1]=-268435457L;
		for (int i = 2; i<=1023; i++) { data[i]=-1L; }
		return data;
	}
	public static final BitSet _tokenSet_2 = new BitSet(mk_tokenSet_2());
	private static final long[] mk_tokenSet_3() {
		long[] data = new long[2048];
		data[0]=-17179878408L;
		data[1]=-268435457L;
		for (int i = 2; i<=1023; i++) { data[i]=-1L; }
		return data;
	}
	public static final BitSet _tokenSet_3 = new BitSet(mk_tokenSet_3());
	private static final long[] mk_tokenSet_4() {
		long[] data = new long[1025];
		data[0]=287948901175001088L;
		data[1]=541165879422L;
		return data;
	}
	public static final BitSet _tokenSet_4 = new BitSet(mk_tokenSet_4());
	
	}