actionlexer.java

Java写的词法/语法分析器。可生成JAVA语言或者是C++的词法和语法分析器。并可产生语法分析树和对该树进行遍历

			switch ( LA(1)) {
			case '\\':
			{
				mESC(false);
				break;
			}
			case '\3':  case '\4':  case '\5':  case '\6':
			case '\7':  case '\10':  case '\t':  case '\n':
			case '\13':  case '\14':  case '\r':  case '\16':
			case '\17':  case '\20':  case '\21':  case '\22':
			case '\23':  case '\24':  case '\25':  case '\26':
			case '\27':  case '\30':  case '\31':  case '\32':
			case '\33':  case '\34':  case '\35':  case '\36':
			case '\37':  case ' ':  case '!':  case '#':
			case '$':  case '%':  case '&':  case '\'':
			case '(':  case ')':  case '*':  case '+':
			case ',':  case '-':  case '.':  case '/':
			case '0':  case '1':  case '2':  case '3':
			case '4':  case '5':  case '6':  case '7':
			case '8':  case '9':  case ':':  case ';':
			case '<':  case '=':  case '>':  case '?':
			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':  case '[':
			case ']':  case '^':  case '_':  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':  case '{':  case '|':
			case '}':  case '~':
			{
				matchNot('"');
				break;
			}
			default:
			{
				break _loop85;
			}
			}
		} 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;
	}
	
	protected final void mCHAR(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = CHAR;
		int _saveIndex;
		
		match('\'');
		{
		switch ( LA(1)) {
		case '\\':
		{
			mESC(false);
			break;
		}
		case '\3':  case '\4':  case '\5':  case '\6':
		case '\7':  case '\10':  case '\t':  case '\n':
		case '\13':  case '\14':  case '\r':  case '\16':
		case '\17':  case '\20':  case '\21':  case '\22':
		case '\23':  case '\24':  case '\25':  case '\26':
		case '\27':  case '\30':  case '\31':  case '\32':
		case '\33':  case '\34':  case '\35':  case '\36':
		case '\37':  case ' ':  case '!':  case '"':
		case '#':  case '$':  case '%':  case '&':
		case '(':  case ')':  case '*':  case '+':
		case ',':  case '-':  case '.':  case '/':
		case '0':  case '1':  case '2':  case '3':
		case '4':  case '5':  case '6':  case '7':
		case '8':  case '9':  case ':':  case ';':
		case '<':  case '=':  case '>':  case '?':
		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':  case '[':
		case ']':  case '^':  case '_':  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':  case '{':  case '|':
		case '}':  case '~':
		{
			matchNot('\'');
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		match('\'');
		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 mTREE(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = TREE;
		int _saveIndex;
		Token t=null;
		Token t2=null;
		
			StringBuffer buf = new StringBuffer();
			int n=0;
			Vector terms = new Vector(10);
		
		
		_saveIndex=text.length();
		match('(');
		text.setLength(_saveIndex);
		{
		switch ( LA(1)) {
		case '\t':  case '\n':  case '\r':  case ' ':
		{
			_saveIndex=text.length();
			mWS(false);
			text.setLength(_saveIndex);
			break;
		}
		case '"':  case '(':  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':  case '[':  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':
		{
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		_saveIndex=text.length();
		mTREE_ELEMENT(true);
		text.setLength(_saveIndex);
		t=_returnToken;
		terms.appendElement(t.getText());
		{
		switch ( LA(1)) {
		case '\t':  case '\n':  case '\r':  case ' ':
		{
			_saveIndex=text.length();
			mWS(false);
			text.setLength(_saveIndex);
			break;
		}
		case ')':  case ',':
		{
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		{
		_loop26:
		do {
			if ((LA(1)==',')) {
				_saveIndex=text.length();
				match(',');
				text.setLength(_saveIndex);
				{
				switch ( LA(1)) {
				case '\t':  case '\n':  case '\r':  case ' ':
				{
					_saveIndex=text.length();
					mWS(false);
					text.setLength(_saveIndex);
					break;
				}
				case '"':  case '(':  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':  case '[':  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':
				{
					break;
				}
				default:
				{
					throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
				}
				}
				}
				_saveIndex=text.length();
				mTREE_ELEMENT(true);
				text.setLength(_saveIndex);
				t2=_returnToken;
				terms.appendElement(t2.getText());
				{
				switch ( LA(1)) {
				case '\t':  case '\n':  case '\r':  case ' ':
				{
					_saveIndex=text.length();
					mWS(false);
					text.setLength(_saveIndex);
					break;
				}
				case ')':  case ',':
				{
					break;
				}
				default:
				{
					throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
				}
				}
				}
			}
			else {
				break _loop26;
			}
			
		} while (true);
		}
		text.setLength(_begin); text.append(generator.getASTCreateString(terms));
		_saveIndex=text.length();
		match(')');
		text.setLength(_saveIndex);
		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 mID(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = ID;
		int _saveIndex;
		
		{
		switch ( LA(1)) {
		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':
		{
			matchRange('a','z');
			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':
		{
			matchRange('A','Z');
			break;
		}
		case '_':
		{
			match('_');
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		{
		_loop79:
		do {
			if ((_tokenSet_4.member(LA(1))) && (true)) {
				{
				switch ( LA(1)) {
				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':
				{
					matchRange('a','z');
					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':
				{
					matchRange('A','Z');
					break;
				}
				case '0':  case '1':  case '2':  case '3':
				case '4':  case '5':  case '6':  case '7':
				case '8':  case '9':
				{
					matchRange('0','9');
					break;
				}
				case '_':
				{
					match('_');
					break;
				}
				default:
				{
					throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
				}
				}
				}
			}
			else {
				break _loop79;
			}
			
		} 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 mWS(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = WS;
		int _saveIndex;
		
		{
		int _cnt105=0;
		_loop105:
		do {
			if ((LA(1)==' ') && (_tokenSet_5.member(LA(2)))) {
				match(' ');
			}
			else if ((LA(1)=='\t') && (_tokenSet_5.member(LA(2)))) {
				match('\t');
			}
			else if ((LA(1)=='\r') && (LA(2)=='\n')) {
				match('\r');
				match('\n');
				newline();
			}
			else if ((LA(1)=='\r') && (_tokenSet_5.member(LA(2)))) {
				match('\r');
				newline();
			}
			else if ((LA(1)=='\n') && (_tokenSet_5.member(LA(2)))) {
				match('\n');
				newline();
			}
			else {
				if ( _cnt105>=1 ) { break _loop105; } else {throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());}
			}
			
			_cnt105++;
		} 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 mVAR_ASSIGN(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = VAR_ASSIGN;
		int _saveIndex;
		
		match(":=");
		
				// inform the code generator that an assignment was done to
				// AST root for the rule if invoker set refRuleRoot.
				if ( transInfo!=null && transInfo.refRuleRoot!=null ) {
					transInfo.assignToRoot=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 mAST_CONSTRUCTOR(boolean _createToken) throws RecognitionException, CharStreamException, TokenStreamException {
		int _ttype; Token _token=null; int _begin=text.length();
		_ttype = AST_CONSTRUCTOR;
		int _saveIndex;
		Token x=null;
		Token y=null;
		
		_saveIndex=text.length();
		match('[');
		text.setLength(_saveIndex);
		{
		switch ( LA(1)) {
		case '\t':  case '\n':  case '\r':  case ' ':
		{
			_saveIndex=text.length();
			mWS(false);
			text.setLength(_saveIndex);
			break;
		}
		case '"':  case '(':  case '0':  case '1':
		case '2':  case '3':  case '4':  case '5':
		case '6':  case '7':  case '8':  case '9':
		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':  case '[':
		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':
		{
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		_saveIndex=text.length();
		mAST_CTOR_ELEMENT(true);
		text.setLength(_saveIndex);
		x=_returnToken;
		{
		switch ( LA(1)) {
		case '\t':  case '\n':  case '\r':  case ' ':
		{
			_saveIndex=text.length();
			mWS(false);
			text.setLength(_saveIndex);
			break;
		}
		case ',':  case ']':
		{
			break;
		}
		default:
		{
			throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
		}
		}
		}
		{
		switch ( LA(1)) {
		case ',':
		{
			_saveIndex=text.length();
			match(',');
			text.setLength(_saveIndex);
			{
			switch ( LA(1)) {
			case '\t':  case '\n':  case '\r':  case ' ':
			{
				_saveIndex=text.length();
				mWS(false);
				text.setLength(_saveIndex);
				break;
			}
			case '"':  case '(':  case '0':  case '1':
			case '2':  case '3':  case '4':  case '5':
			case '6':  case '7':  case '8':  case '9':
			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':  case '[':
			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':
			{
				break;
			}
			default:
			{
				throw new NoViableAltForCharException((char)LA(1), getFilename(), getLine());
			}
			}
			}
			_saveIndex=text.length();
			mAST_CTOR_ELEMENT(true);
			text.setLength(_saveIndex);
			y=_returnToken;
			{
			switch ( LA(1)) {
			case '\t':  case '\n':  case '\r':  case ' ':
			{
				_saveIndex=text.length();
				mWS(false);
				text.setLength(_saveIndex);