textlexer.java

关于 RFID 读写器的相关内容

/*
 * Copyright (C) 2007 ETH Zurich
 *
 * This file is part of Fosstrak (www.fosstrak.org).
 *
 * Fosstrak is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License version 2.1, as published by the Free Software Foundation.
 *
 * Fosstrak 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 Fosstrak; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301  USA
 */

// $ANTLR : "reply_new.g" -> "TextLexer.java"$
 
	package org.fosstrak.reader.rprm.core.msg.reply;

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;

public class TextLexer extends antlr.CharScanner implements TextReplyParserTokenTypes, TokenStream
 {
public TextLexer(InputStream in) {
	this(new ByteBuffer(in));
}
public TextLexer(Reader in) {
	this(new CharBuffer(in));
}
public TextLexer(InputBuffer ib) {
	this(new LexerSharedInputState(ib));
}
public TextLexer(LexerSharedInputState state) {
	super(state);
	caseSensitiveLiterals = false;
	setCaseSensitive(true);
	literals = new Hashtable();
	literals.put(new ANTLRHashString("OK", this), new Integer(4));
	literals.put(new ANTLRHashString("ERR", this), new Integer(5));
}

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
				if ((LA(1)=='\t'||LA(1)==' ') && (true)) {
					mWS(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='\n'||LA(1)=='\r')) {
					mLF(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='#') && (true)) {
					mSHARP(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='.') && (true)) {
					mDOT(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='!') && (true)) {
					mEXCLAMATION(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)==',') && (true)) {
					mCOMMA(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='{') && (true)) {
					mLBRACKET(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='}') && (true)) {
					mRBRACKET(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='=') && (true)) {
					mASSIGN(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='\\') && (true)) {
					mESCAPE(true);
					theRetToken=_returnToken;
				}
				else if ((LA(1)=='>') && (true)) {
					mCOMMAND_REPLY_TERMINATOR(true);
					theRetToken=_returnToken;
				}
				else if (((LA(1) >= '0' && LA(1) <= '9')) && (true)) {
					mINT(true);
					theRetToken=_returnToken;
				}
				else if ((_tokenSet_0.member(LA(1))) && (true)) {
					mSTRING(true);
					theRetToken=_returnToken;
				}
				else if ((_tokenSet_1.member(LA(1))) && (true)) {
					mSTRINGCHAR1(true);
					theRetToken=_returnToken;
				}
				else if (((LA(1) >= ' ' && LA(1) <= '~')) && (true)) {
					mSTRINGCHAR2(true);
					theRetToken=_returnToken;
				}
				else if ((_tokenSet_2.member(LA(1))) && (true)) {
					mIDENT(true);
					theRetToken=_returnToken;
				}
				else {
					if (LA(1)==EOF_CHAR) {uponEOF(); _returnToken = makeToken(Token.EOF_TYPE);}
				else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());}
				}
				
				if ( _returnToken==null ) continue tryAgain; // found SKIP token
				_ttype = _returnToken.getType();
				_ttype = testLiteralsTable(_ttype);
				_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 mWS(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = WS;
		int _saveIndex;
		
		{
		switch ( LA(1)) {
		case ' ':
		{
			match(' ');
			break;
		}
		case '\t':
		{
			match('\t');
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
		}
		}
		}
		
				_ttype = Token.SKIP;
			
		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 mLF(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = LF;
		int _saveIndex;
		
		{
		if ((LA(1)=='\r') && (LA(2)=='\n')) {
			match("\r\n");
		}
		else if ((LA(1)=='\r') && (true)) {
			match('\r');
		}
		else if ((LA(1)=='\n')) {
			match('\n');
		}
		else {
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
		}
		
		}
		
				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 mSHARP(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = SHARP;
		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 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 mEXCLAMATION(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = EXCLAMATION;
		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 mCOMMA(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = COMMA;
		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 mLBRACKET(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = LBRACKET;
		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 mRBRACKET(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = RBRACKET;
		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 mASSIGN(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = ASSIGN;
		int _saveIndex;
		
		match("=");
		if ( _createToken && _token==null && _ttype!=Token.SKIP ) {
			_token = makeToken(_ttype);