rdqlparser.java

这是外国一个开源推理机

      jj_consume_token(RPAREN);
                {if (true) return result;}
      break;
    default:
      jj_la1[23] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public ValueExpr var_or_uri() throws ParseException {
        ValueExpr result;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case VAR:
      result = var();
                         {if (true) return result;}
      break;
    case QUOTED_URI:
    case QNAME:
      result = uri();
                         {if (true) return result;}
      break;
    default:
      jj_la1[24] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public ValueExpr var_or_const() throws ParseException {
        ValueExpr result;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case VAR:
      result = var();
                             {if (true) return result;}
      break;
    case NULL:
    case TEXT_LITERAL:
    case QUOTED_URI:
    case QNAME:
    case INTEGER_LITERAL:
    case FLOATING_POINT_LITERAL:
      result = value();
                             {if (true) return result;}
      break;
    default:
      jj_la1[25] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public Var var() throws ParseException {
        Token varToken;
    varToken = jj_consume_token(VAR);
                String varName = varToken.image.substring(1);
                {if (true) return _getSharedVar(varName);}
    throw new Error("Missing return statement in function");
  }

  final public ValueExpr value() throws ParseException {
        ValueExpr result;
        Var var;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case QUOTED_URI:
    case QNAME:
      result = uri();
                             {if (true) return result;}
      break;
    case TEXT_LITERAL:
    case INTEGER_LITERAL:
    case FLOATING_POINT_LITERAL:
      result = literal();
                             {if (true) return result;}
      break;
    case NULL:
      result = _null();
                             {if (true) return result;}
      break;
    default:
      jj_la1[26] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public ResourceExpr uri() throws ParseException {
        ResourceExpr expr;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case QUOTED_URI:
      expr = quoted_uri();
                              {if (true) return expr;}
      break;
    case QNAME:
      expr = qname();
                         {if (true) return expr;}
      break;
    default:
      jj_la1[27] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public ResourceExpr quoted_uri() throws ParseException {
        Token uriToken;
    uriToken = jj_consume_token(QUOTED_URI);
                URI uri = _parseQuotedURI(uriToken.image);
                {if (true) return new ResourceExpr(uri);}
    throw new Error("Missing return statement in function");
  }

  final public ResourceExpr qname() throws ParseException {
        Token uriToken;
    uriToken = jj_consume_token(QNAME);
                URI uri = _parseQName(uriToken.image);
                {if (true) return new ResourceExpr(uri);}
    throw new Error("Missing return statement in function");
  }

  final public LiteralExpr literal() throws ParseException {
        Token token;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case TEXT_LITERAL:
      token = jj_consume_token(TEXT_LITERAL);
                        {if (true) return new LiteralExpr( _parseLiteral(token.image) );}
      break;
    case INTEGER_LITERAL:
      token = jj_consume_token(INTEGER_LITERAL);
                        {if (true) return new LiteralExpr( new LiteralImpl(
                                        XmlDatatypeUtil.normalizeInteger(token.image),
                                        XSD_INTEGER) );}
      break;
    case FLOATING_POINT_LITERAL:
      token = jj_consume_token(FLOATING_POINT_LITERAL);
                        {if (true) return new LiteralExpr( new LiteralImpl(
                                        XmlDatatypeUtil.normalizeFloat(token.image),
                                        XSD_FLOAT) );}
      break;
    default:
      jj_la1[28] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public String string() throws ParseException {
        Token token;
    try {
      token = jj_consume_token(TEXT_LITERAL);
    } catch (ParseException e) {
                // thrown exception reports that a <TEXT_LITERAL> is
                // expected, but we actually mean a <STRING>
                {if (true) throw _createParseException(e.currentToken, new String[]{"<STRING>"});}
    }
                        Literal literal = _parseLiteral(token.image);

                        if (literal.getLanguage() != null || literal.getDatatype() != null) {
                                // Not a plain literal that can be qualified as a string
                                {if (true) throw new ParseException("Expected <STRING>, found <TEXT_LITERAL>: " + literal.toString());}
                        }

                        {if (true) return literal.getLabel();}
    throw new Error("Missing return statement in function");
  }

  final public Null _null() throws ParseException {
    jj_consume_token(NULL);
                 {if (true) return new Null();}
    throw new Error("Missing return statement in function");
  }

  final private boolean jj_2_1(int xla) {
    jj_la = xla; jj_lastpos = jj_scanpos = token;
    try { return !jj_3_1(); }
    catch(LookaheadSuccess ls) { return true; }
    finally { jj_save(0, xla); }
  }

  final private boolean jj_3R_67() {
    if (jj_scan_token(QUOTED_URI)) return true;
    return false;
  }

  final private boolean jj_3R_49() {
    if (jj_scan_token(STAR)) return true;
    return false;
  }

  final private boolean jj_3R_45() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_49()) {
    jj_scanpos = xsp;
    if (jj_3R_50()) {
    jj_scanpos = xsp;
    if (jj_3R_51()) return true;
    }
    }
    return false;
  }

  final private boolean jj_3R_21() {
    if (jj_3R_26()) return true;
    if (jj_3R_19()) return true;
    return false;
  }

  final private boolean jj_3R_63() {
    if (jj_3R_68()) return true;
    return false;
  }

  final private boolean jj_3R_39() {
    if (jj_3R_45()) return true;
    if (jj_3R_38()) return true;
    return false;
  }

  final private boolean jj_3R_20() {
    if (jj_3R_25()) return true;
    if (jj_3R_19()) return true;
    return false;
  }

  final private boolean jj_3R_62() {
    if (jj_3R_67()) return true;
    return false;
  }

  final private boolean jj_3R_59() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_62()) {
    jj_scanpos = xsp;
    if (jj_3R_63()) return true;
    }
    return false;
  }

  final private boolean jj_3R_61() {
    if (jj_scan_token(NULL)) return true;
    return false;
  }

  final private boolean jj_3R_58() {
    if (jj_3R_61()) return true;
    return false;
  }

  final private boolean jj_3R_57() {
    if (jj_3R_60()) return true;
    return false;
  }

  final private boolean jj_3R_28() {
    if (jj_3R_38()) return true;
    Token xsp;
    while (true) {
      xsp = jj_scanpos;
      if (jj_3R_39()) { jj_scanpos = xsp; break; }
    }
    return false;
  }

  final private boolean jj_3R_56() {
    if (jj_3R_59()) return true;
    return false;
  }

  final private boolean jj_3R_55() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_56()) {
    jj_scanpos = xsp;
    if (jj_3R_57()) {
    jj_scanpos = xsp;
    if (jj_3R_58()) return true;
    }
    }
    return false;
  }

  final private boolean jj_3R_18() {
    if (jj_3R_19()) return true;
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_20()) {
    jj_scanpos = xsp;
    if (jj_3R_21()) {
    jj_scanpos = xsp;
    if (jj_3R_22()) {
    jj_scanpos = xsp;
    if (jj_3R_23()) return true;
    }
    }
    }
    return false;
  }

  final private boolean jj_3R_17() {
    if (jj_scan_token(NOT)) return true;
    if (jj_3R_13()) return true;
    return false;
  }

  final private boolean jj_3R_47() {
    if (jj_scan_token(MINUS)) return true;
    return false;
  }

  final private boolean jj_3R_46() {
    if (jj_scan_token(PLUS)) return true;
    return false;
  }

  final private boolean jj_3R_40() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_46()) {
    jj_scanpos = xsp;
    if (jj_3R_47()) return true;
    }
    return false;
  }

  final private boolean jj_3_1() {
    if (jj_scan_token(LPAREN)) return true;
    if (jj_3R_10()) return true;
    if (jj_scan_token(RPAREN)) return true;
    return false;
  }

  final private boolean jj_3R_54() {
    if (jj_scan_token(VAR)) return true;
    return false;
  }

  final private boolean jj_3R_29() {
    if (jj_3R_40()) return true;
    if (jj_3R_28()) return true;
    return false;
  }

  final private boolean jj_3R_27() {
    if (jj_scan_token(TEXT_LITERAL)) return true;
    return false;
  }

  final private boolean jj_3R_16() {
    if (jj_scan_token(FALSE)) return true;
    return false;
  }

  final private boolean jj_3R_53() {
    if (jj_3R_55()) return true;
    return false;
  }

  final private boolean jj_3R_52() {
    if (jj_3R_54()) return true;
    return false;
  }

  final private boolean jj_3R_48() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_52()) {
    jj_scanpos = xsp;
    if (jj_3R_53()) return true;
    }
    return false;
  }

  final private boolean jj_3R_13() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_15()) {
    jj_scanpos = xsp;
    if (jj_3R_16()) {
    jj_scanpos = xsp;
    if (jj_3_1()) {
    jj_scanpos = xsp;
    if (jj_3R_17()) {
    jj_scanpos = xsp;
    if (jj_3R_18()) return true;
    }
    }
    }
    }
    return false;
  }

  final private boolean jj_3R_15() {
    if (jj_scan_token(TRUE)) return true;
    return false;
  }

  final private boolean jj_3R_24() {
    if (jj_3R_28()) return true;
    Token xsp;
    while (true) {
      xsp = jj_scanpos;
      if (jj_3R_29()) { jj_scanpos = xsp; break; }
    }
    return false;
  }

  final private boolean jj_3R_66() {
    if (jj_scan_token(FLOATING_POINT_LITERAL)) return true;
    return false;
  }

  final private boolean jj_3R_14() {
    if (jj_scan_token(SC_AND)) return true;
    if (jj_3R_13()) return true;
    return false;
  }

  final private boolean jj_3R_19() {
    if (jj_3R_24()) return true;
    return false;
  }

  final private boolean jj_3R_65() {
    if (jj_scan_token(INTEGER_LITERAL)) return true;
    return false;
  }

  final private boolean jj_3R_44() {
    if (jj_scan_token(LPAREN)) return true;
    if (jj_3R_38()) return true;
    if (jj_scan_token(RPAREN)) return true;
    return false;
  }

  final private boolean jj_3R_64() {
    if (jj_scan_token(TEXT_LITERAL)) return true;
    return false;
  }

  final private boolean jj_3R_60() {