gocllexer.java

UML设计测试工具

// $ANTLR 2.7.4: "ocl.g" -> "GOCLLexer.java"$
 
/*
 * USE - UML based specification environment
 * Copyright (C) 1999-2004 Mark Richters, University of Bremen
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program 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
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
 */

package org.tzi.use.parser.ocl; 

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;

	import java.io.PrintWriter;
	import org.tzi.use.util.Log;
	import org.tzi.use.util.StringUtil;
	import org.tzi.use.parser.ParseErrorHandler;
	import org.tzi.use.parser.MyToken;

public class GOCLLexer extends antlr.CharScanner implements GOCLLexerTokenTypes, TokenStream
 {

	protected int fTokColumn = 1;
    private PrintWriter fErr;
    private ParseErrorHandler fParseErrorHandler;
	
	    public void consume() throws CharStreamException {
        if (inputState.guessing == 0 ) {
            if (text.length() == 0 ) {
                // remember token start column
                fTokColumn = getColumn();
            }
        }
        super.consume();
    }

    public String getFilename() {
        return fParseErrorHandler.getFileName();
    }
    
    protected Token makeToken(int t) {
        MyToken token = 
            new MyToken(getFilename(), getLine(), fTokColumn);
        token.setType(t);
        if (t == EOF )
            token.setText("end of file or input");
        return token;
    }

    public void reportError(RecognitionException ex) {
        fParseErrorHandler.reportError(
                ex.getLine() + ":" + ex.getColumn() + ": " + ex.getMessage());
    }
 

    /**
     * Returns true if word is a reserved keyword. 
     */
    public boolean isKeyword(String word) {
        ANTLRHashString s = new ANTLRHashString(word, this);
        boolean res = literals.get(s) != null;
        Log.trace(this, "keyword " + word + ": " + res);
        return res;
    }

    public void traceIn(String rname) throws CharStreamException {
        traceIndent();
        traceDepth += 1;
        System.out.println("> lexer " + rname + ": c == '" + 
                           StringUtil.escapeChar(LA(1), '\'') + "'");
    }

    public void traceOut(String rname) throws CharStreamException {
        traceDepth -= 1;
        traceIndent();
        System.out.println("< lexer " + rname + ": c == '" +
                           StringUtil.escapeChar(LA(1), '\'') + "'");
    }
    
    public void init(ParseErrorHandler handler) {
        fParseErrorHandler = handler;
    }
public GOCLLexer(InputStream in) {
	this(new ByteBuffer(in));
}
public GOCLLexer(Reader in) {
	this(new CharBuffer(in));
}
public GOCLLexer(InputBuffer ib) {
	this(new LexerSharedInputState(ib));
}
public GOCLLexer(LexerSharedInputState state) {
	super(state);
	caseSensitiveLiterals = true;
	setCaseSensitive(true);
	literals = new Hashtable();
	literals.put(new ANTLRHashString("oclIsTypeOf", this), new Integer(39));
	literals.put(new ANTLRHashString("oclUndefined", this), new Integer(57));
	literals.put(new ANTLRHashString("let", this), new Integer(9));
	literals.put(new ANTLRHashString("if", this), new Integer(40));
	literals.put(new ANTLRHashString("pre", this), new Integer(36));
	literals.put(new ANTLRHashString("endif", this), new Integer(43));
	literals.put(new ANTLRHashString("oclAsType", this), new Integer(37));
	literals.put(new ANTLRHashString("allInstances", this), new Integer(29));
	literals.put(new ANTLRHashString("then", this), new Integer(41));
	literals.put(new ANTLRHashString("in", this), new Integer(11));
	literals.put(new ANTLRHashString("or", this), new Integer(13));
	literals.put(new ANTLRHashString("xor", this), new Integer(14));
	literals.put(new ANTLRHashString("Tuple", this), new Integer(58));
	literals.put(new ANTLRHashString("Bag", this), new Integer(52));
	literals.put(new ANTLRHashString("else", this), new Integer(42));
	literals.put(new ANTLRHashString("Collection", this), new Integer(59));
	literals.put(new ANTLRHashString("true", this), new Integer(44));
	literals.put(new ANTLRHashString("div", this), new Integer(25));
	literals.put(new ANTLRHashString("Sequence", this), new Integer(51));
	literals.put(new ANTLRHashString("implies", this), new Integer(12));
	literals.put(new ANTLRHashString("and", this), new Integer(15));
	literals.put(new ANTLRHashString("not", this), new Integer(26));
	literals.put(new ANTLRHashString("oclEmpty", this), new Integer(56));
	literals.put(new ANTLRHashString("Set", this), new Integer(50));
	literals.put(new ANTLRHashString("false", this), new Integer(45));
	literals.put(new ANTLRHashString("oclIsKindOf", this), new Integer(38));
	literals.put(new ANTLRHashString("iterate", this), new Integer(31));
}

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 '\t':  case '\n':  case '\u000c':  case '\r':
				case ' ':
				{
					mWS(true);
					theRetToken=_returnToken;
					break;
				}
				case '@':
				{
					mAT(true);
					theRetToken=_returnToken;
					break;
				}
				case '|':
				{
					mBAR(true);
					theRetToken=_returnToken;
					break;
				}
				case ',':
				{
					mCOMMA(true);
					theRetToken=_returnToken;
					break;
				}
				case '=':
				{
					mEQUAL(true);
					theRetToken=_returnToken;
					break;
				}
				case '#':
				{
					mHASH(true);
					theRetToken=_returnToken;
					break;
				}
				case '{':
				{
					mLBRACE(true);
					theRetToken=_returnToken;
					break;
				}
				case '[':
				{
					mLBRACK(true);
					theRetToken=_returnToken;
					break;
				}
				case '(':
				{
					mLPAREN(true);
					theRetToken=_returnToken;
					break;
				}
				case '+':
				{
					mPLUS(true);
					theRetToken=_returnToken;
					break;
				}
				case '}':
				{
					mRBRACE(true);
					theRetToken=_returnToken;
					break;
				}
				case ']':
				{
					mRBRACK(true);
					theRetToken=_returnToken;
					break;
				}
				case ')':
				{
					mRPAREN(true);
					theRetToken=_returnToken;
					break;
				}
				case ';':
				{
					mSEMI(true);
					theRetToken=_returnToken;
					break;
				}
				case '*':
				{
					mSTAR(true);
					theRetToken=_returnToken;
					break;
				}
				case '0':  case '1':  case '2':  case '3':
				case '4':  case '5':  case '6':  case '7':
				case '8':  case '9':
				{
					mRANGE_OR_INT(true);
					theRetToken=_returnToken;
					break;
				}
				case '\'':
				{
					mSTRING(true);
					theRetToken=_returnToken;
					break;
				}
				case 'A':  case 'B':  case 'C':  case 'D':
				case 'E':  case 'F':  case 'G':  case 'H':
				case 'I':  case 'J':  case 'K':  case 'L':
				case 'M':  case 'N':  case 'O':  case 'P':
				case 'Q':  case 'R':  case 'S':  case 'T':
				case 'U':  case 'V':  case 'W':  case 'X':
				case 'Y':  case 'Z':  case '_':  case 'a':
				case 'b':  case 'c':  case 'd':  case 'e':
				case 'f':  case 'g':  case 'h':  case 'i':
				case 'j':  case 'k':  case 'l':  case 'm':
				case 'n':  case 'o':  case 'p':  case 'q':
				case 'r':  case 's':  case 't':  case 'u':
				case 'v':  case 'w':  case 'x':  case 'y':
				case 'z':
				{
					mIDENT(true);
					theRetToken=_returnToken;
					break;
				}
				default:
					if ((LA(1)=='-'||LA(1)=='/') && (LA(2)=='-'||LA(2)=='/')) {
						mSL_COMMENT(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='/') && (LA(2)=='*')) {
						mML_COMMENT(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='-') && (LA(2)=='>')) {
						mARROW(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)==':') && (LA(2)==':')) {
						mCOLON_COLON(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)==':') && (LA(2)=='=')) {
						mCOLON_EQUAL(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='.') && (LA(2)=='.')) {
						mDOTDOT(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='>') && (LA(2)=='=')) {
						mGREATER_EQUAL(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='<') && (LA(2)=='=')) {
						mLESS_EQUAL(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='<') && (LA(2)=='>')) {
						mNOT_EQUAL(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)==':') && (true)) {
						mCOLON(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='.') && (true)) {
						mDOT(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='>') && (true)) {
						mGREATER(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='<') && (true)) {
						mLESS(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='-') && (true)) {
						mMINUS(true);
						theRetToken=_returnToken;
					}
					else if ((LA(1)=='/') && (true)) {
						mSLASH(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();
				_returnToken.setType(_ttype);
				return _returnToken;
			}
			catch (RecognitionException e) {
				reportError(e);
				consume();
			}
		}
		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;
		
		try {      // for error handling
			{
			switch ( LA(1)) {
			case ' ':
			{
				match(' ');
				break;
			}
			case '\t':
			{
				match('\t');
				break;
			}
			case '\u000c':
			{
				match('\f');
				break;
			}
			case '\n':  case '\r':
			{
				{
				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());
				}
				
				}
				if ( inputState.guessing==0 ) {
					newline();
				}
				break;
			}
			default:
			{
				throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
			}
			}
			}
			if ( inputState.guessing==0 ) {
				_ttype = Token.SKIP;
			}
		}
		catch (RecognitionException ex) {
			if (inputState.guessing==0) {
				reportError(ex);
				consume();
				consumeUntil(_tokenSet_0);
			} else {
			  throw ex;
			}
		}
		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;
		
		try {      // for error handling
			{
			switch ( LA(1)) {
			case '/':
			{
				match("//");
				break;
			}
			case '-':
			{
				match("--");
				break;
			}
			default:
			{
				throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine(), getColumn());
			}
			}
			}
			{
			_loop96:
			do {
				if ((_tokenSet_1.member(LA(1)))) {
					{
					match(_tokenSet_1);
					}
				}
				else {
					break _loop96;
				}
				
			} while (true);
			}
			{
			switch ( LA(1)) {
			case '\n':
			{
				match('\n');
				break;