Examples with CharStreamException antlr.CharStreamException used on opensource projects

Example 1 with CharStreamException

use of antlr.CharStreamException in project sonarqube by SonarSource.

the class ValidWhenLexer method nextToken.

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 '\r':
                    case ' ':
                        {
                            mWS(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '-':
                    case '1':
                    case '2':
                    case '3':
                    case '4':
                    case '5':
                    case '6':
                    case '7':
                    case '8':
                    case '9':
                        {
                            mDECIMAL_LITERAL(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '"':
                    case '\'':
                        {
                            mSTRING_LITERAL(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '[':
                        {
                            mLBRACKET(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case ']':
                        {
                            mRBRACKET(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '(':
                        {
                            mLPAREN(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case ')':
                        {
                            mRPAREN(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '*':
                        {
                            mTHIS(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    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':
                        {
                            mIDENTIFIER(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '=':
                        {
                            mEQUALSIGN(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    case '!':
                        {
                            mNOTEQUALSIGN(true);
                            theRetToken = _returnToken;
                            break;
                        }
                    default:
                        if ((LA(1) == '0') && (LA(2) == 'x')) {
                            mHEX_LITERAL(true);
                            theRetToken = _returnToken;
                        } else if ((LA(1) == '<') && (LA(2) == '=')) {
                            mLESSEQUALSIGN(true);
                            theRetToken = _returnToken;
                        } else if ((LA(1) == '>') && (LA(2) == '=')) {
                            mGREATEREQUALSIGN(true);
                            theRetToken = _returnToken;
                        } else if ((LA(1) == '0') && (true)) {
                            mOCTAL_LITERAL(true);
                            theRetToken = _returnToken;
                        } else if ((LA(1) == '<') && (true)) {
                            mLESSTHANSIGN(true);
                            theRetToken = _returnToken;
                        } else if ((LA(1) == '>') && (true)) {
                            mGREATERTHANSIGN(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());
                            }
                        }
                }
                // found SKIP token
                if (_returnToken == null)
                    continue tryAgain;
                _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());
            }
        }
    }
}