serqlparser.java

这是外国一个开源推理机

    case BNODE:
    case QNAME:
    case POS_INTEGER:
    case NEG_INTEGER:
    case DECIMAL:
      expr = value();
                         {if (true) return expr;}
      break;
    default:
      jj_la1[46] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public ValueExpr uri_bnode_or_literal() throws ParseException {
        ValueExpr expr;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case FULL_URI:
    case QNAME:
      expr = uri();
                           {if (true) return expr;}
      break;
    case BNODE:
      expr = bnode();
                           {if (true) return expr;}
      break;
    case LITERAL:
    case POS_INTEGER:
    case NEG_INTEGER:
    case DECIMAL:
      expr = literal();
                           {if (true) return expr;}
      break;
    default:
      jj_la1[47] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public Var var() throws ParseException {
        String varName;
    varName = nc_name();
                {if (true) return _getSharedVar(varName);}
    throw new Error("Missing return statement in function");
  }

  final public ValueExpr value() throws ParseException {
        ValueExpr expr;
        Var var;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case FULL_URI:
    case QNAME:
      expr = uri();
                                                    {if (true) return expr;}
      break;
    case BNODE:
      expr = bnode();
                                                    {if (true) return expr;}
      break;
    case LITERAL:
    case POS_INTEGER:
    case NEG_INTEGER:
    case DECIMAL:
      expr = literal();
                                                    {if (true) return expr;}
      break;
    case NULL:
      expr = _null();
                                                    {if (true) return expr;}
      break;
    case DATATYPE:
      jj_consume_token(DATATYPE);
      jj_consume_token(LPAREN);
      var = var();
      jj_consume_token(RPAREN);
                                                    {if (true) return new Datatype(var);}
      break;
    case LANG:
      jj_consume_token(LANG);
      jj_consume_token(LPAREN);
      var = var();
      jj_consume_token(RPAREN);
                                                    {if (true) return new Lang(var);}
      break;
    case LABEL:
      jj_consume_token(LABEL);
      jj_consume_token(LPAREN);
      var = var();
      jj_consume_token(RPAREN);
                                                    {if (true) return new Label(var);}
      break;
    case NAMESPACE:
      jj_consume_token(NAMESPACE);
      jj_consume_token(LPAREN);
      var = var();
      jj_consume_token(RPAREN);
                                                    {if (true) return new Namespace(var);}
      break;
    case LOCALNAME:
      jj_consume_token(LOCALNAME);
      jj_consume_token(LPAREN);
      var = var();
      jj_consume_token(RPAREN);
                                                    {if (true) return new LocalName(var);}
      break;
    default:
      jj_la1[48] = 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 FULL_URI:
      expr = full_uri();
                            {if (true) return expr;}
      break;
    case QNAME:
      expr = qname();
                         {if (true) return expr;}
      break;
    default:
      jj_la1[49] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

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

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

  final public ResourceExpr bnode() throws ParseException {
        Token bnodeToken;
    bnodeToken = jj_consume_token(BNODE);
                {if (true) return new ResourceExpr( _parseBNode(bnodeToken.image) );}
    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 LITERAL:
      token = jj_consume_token(LITERAL);
                        {if (true) return new LiteralExpr( _parseLiteral(token.image) );}
      break;
    case POS_INTEGER:
      token = jj_consume_token(POS_INTEGER);
                        {if (true) return new LiteralExpr( new LiteralImpl(
                                        XmlDatatypeUtil.normalizeInteger(token.image),
                                        XSD_INTEGER) );}
      break;
    case NEG_INTEGER:
      token = jj_consume_token(NEG_INTEGER);
                        {if (true) return new LiteralExpr( new LiteralImpl(
                                        XmlDatatypeUtil.normalizeInteger(token.image),
                                        XSD_INTEGER) );}
      break;
    case DECIMAL:
      token = jj_consume_token(DECIMAL);
                        {if (true) return new LiteralExpr( new LiteralImpl(
                                        XmlDatatypeUtil.normalizeDecimal(token.image),
                                        XSD_DECIMAL) );}
      break;
    default:
      jj_la1[50] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public String nc_name() throws ParseException {
        Token token;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case PREFIX_NAME:
      token = jj_consume_token(PREFIX_NAME);
                                {if (true) return token.image;}
      break;
    case UNDERSCORE:
      token = jj_consume_token(UNDERSCORE);
                               {if (true) return token.image;}
      break;
    default:
      jj_la1[51] = 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(LITERAL);
    } catch (ParseException e) {
                // thrown exception reports that a <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 <LITERAL>: " + literal.toString());}
                        }

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

  final public int pos_integer() throws ParseException {
        Token token;
    token = jj_consume_token(POS_INTEGER);
                        try {
                                {if (true) return Integer.parseInt( token.image );}
                        }
                        catch (NumberFormatException e) {
                                // Should never happen: tokenizer enforces that token contains a valid integer
                                {if (true) throw new RuntimeException(e);}
                        }
    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");
  }

  public SerqlParserTokenManager token_source;
  SimpleCharStream jj_input_stream;
  public Token token, jj_nt;
  private int jj_ntk;
  private int jj_gen;
  final private int[] jj_la1 = new int[52];
  static private int[] jj_la1_0;
  static private int[] jj_la1_1;
  static private int[] jj_la1_2;
  static {
      jj_la1_0();
      jj_la1_1();
      jj_la1_2();
   }
   private static void jj_la1_0() {
      jj_la1_0 = new int[] {0x400000,0x0,0x0,0x0,0x1020000,0x400000,0x0,0x0,0x0,0x2020000,0x2000,0x4000000,0x8000000,0x20000000,0x40000000,0x4000000,0x89000,0x8000000,0x20000000,0x40000000,0x2000,0xa01000,0x0,0x10000000,0x2000,0x284000,0x284000,0x88000,0x284000,0x284000,0x284000,0x284000,0x10000000,0x4000,0x280000,0x200000,0x2000,0x208000,0x208000,0x0,0x0,0x80a20000,0xa00000,0x0,0xfc0,0xfc0,0xa00000,0x0,0x800000,0x0,0x0,0x200000,};
   }
   private static void jj_la1_1() {
      jj_la1_1 = new int[] {0x0,0x200000,0xe0000,0xe0000,0x0,0x0,0x200000,0xe0000,0xe0000,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1000f80,0x10000,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x1000000,0x1000000,0x8,0x4,0x180ff83,0x1300f80,0x20,0x400010,0x0,0x1000f80,0x1000000,0x1000f80,0x0,0x1000000,0x0,};
   }
   private static void jj_la1_2() {
      jj_la1_2 = new int[] {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0xe01d0,0x0,0x0,0x0,0x190,0x190,0x0,0x190,0x190,0x190,0x190,0x0,0x0,0x190,0x190,0x0,0xe01d0,0xe01d0,0x0,0x0,0xe01d0,0xe01d0,0x0,0x0,0x0,0xe01d0,0xe00d0,0xe00d0,0x90,0xe0000,0x100,};
   }

  public SerqlParser(java.io.InputStream stream) {
    jj_input_stream = new SimpleCharStream(stream, 1, 1);
    token_source = new SerqlParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 52; i++) jj_la1[i] = -1;
  }

  public void ReInit(java.io.InputStream stream) {
    jj_input_stream.ReInit(stream, 1, 1);
    token_source.ReInit(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 52; i++) jj_la1[i] = -1;
  }

  public SerqlParser(java.io.Reader stream) {
    jj_input_stream = new SimpleCharStream(stream, 1, 1);
    token_source = new SerqlParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 52; i++) jj_la1[i] = -1;
  }

  public void ReInit(java.io.Reader stream) {
    jj_input_stream.ReInit(stream, 1, 1);
    token_source.ReInit(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 52; i++) jj_la1[i] = -1;
  }

  public SerqlParser(SerqlParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 52; i++) jj_la1[i] = -1;
  }

  public void ReInit(SerqlParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 52; i++) jj_la1[i] = -1;
  }

  final private Token jj_consume_token(int kind) throws ParseException {
    Token oldToken;
    if ((oldToken = token).next != null) token = token.next;
    else token = token.next = token_source.getNextToken();
    jj_ntk = -1;
    if (token.kind == kind) {
      jj_gen++;
      return token;
    }
    token = oldToken;
    jj_kind = kind;
    throw generateParseException();
  }

  final public Token getNextToken() {
    if (token.next != null) token = token.next;
    else token = token.next = token_source.getNextToken();
    jj_ntk = -1;
    jj_gen++;
    return token;
  }

  final public Token getToken(int index) {
    Token t = token;
    for (int i = 0; i < index; i++) {
      if (t.next != null) t = t.next;
      else t = t.next = token_source.getNextToken();
    }
    return t;
  }

  final private int jj_ntk() {
    if ((jj_nt=token.next) == null)
      return (jj_ntk = (token.next=token_source.getNextToken()).kind);
    else
      return (jj_ntk = jj_nt.kind);
  }

  private java.util.Vector jj_expentries = new java.util.Vector();
  private int[] jj_expentry;
  private int jj_kind = -1;

  public ParseException generateParseException() {
    jj_expentries.removeAllElements();
    boolean[] la1tokens = new boolean[84];
    for (int i = 0; i < 84; i++) {
      la1tokens[i] = false;
    }
    if (jj_kind >= 0) {
      la1tokens[jj_kind] = true;
      jj_kind = -1;
    }
    for (int i = 0; i < 52; i++) {
      if (jj_la1[i] == jj_gen) {
        for (int j = 0; j < 32; j++) {
          if ((jj_la1_0[i] & (1<<j)) != 0) {
            la1tokens[j] = true;
          }
          if ((jj_la1_1[i] & (1<<j)) != 0) {
            la1tokens[32+j] = true;
          }
          if ((jj_la1_2[i] & (1<<j)) != 0) {
            la1tokens[64+j] = true;
          }
        }
      }
    }
    for (int i = 0; i < 84; i++) {
      if (la1tokens[i]) {
        jj_expentry = ne