rdqlparser.java

这是外国一个开源推理机

    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_64()) {
    jj_scanpos = xsp;
    if (jj_3R_65()) {
    jj_scanpos = xsp;
    if (jj_3R_66()) return true;
    }
    }
    return false;
  }

  final private boolean jj_3R_11() {
    if (jj_3R_13()) return true;
    Token xsp;
    while (true) {
      xsp = jj_scanpos;
      if (jj_3R_14()) { jj_scanpos = xsp; break; }
    }
    return false;
  }

  final private boolean jj_3R_37() {
    if (jj_scan_token(GT)) return true;
    return false;
  }

  final private boolean jj_3R_36() {
    if (jj_scan_token(GE)) return true;
    return false;
  }

  final private boolean jj_3R_35() {
    if (jj_scan_token(LE)) return true;
    return false;
  }

  final private boolean jj_3R_34() {
    if (jj_scan_token(LT)) return true;
    return false;
  }

  final private boolean jj_3R_33() {
    if (jj_scan_token(NE)) return true;
    return false;
  }

  final private boolean jj_3R_43() {
    if (jj_scan_token(MINUS)) return true;
    if (jj_3R_38()) return true;
    return false;
  }

  final private boolean jj_3R_26() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_32()) {
    jj_scanpos = xsp;
    if (jj_3R_33()) {
    jj_scanpos = xsp;
    if (jj_3R_34()) {
    jj_scanpos = xsp;
    if (jj_3R_35()) {
    jj_scanpos = xsp;
    if (jj_3R_36()) {
    jj_scanpos = xsp;
    if (jj_3R_37()) return true;
    }
    }
    }
    }
    }
    return false;
  }

  final private boolean jj_3R_32() {
    if (jj_scan_token(EQ)) return true;
    return false;
  }

  final private boolean jj_3R_12() {
    if (jj_scan_token(SC_OR)) return true;
    if (jj_3R_11()) return true;
    return false;
  }

  final private boolean jj_3R_42() {
    if (jj_scan_token(PLUS)) return true;
    if (jj_3R_38()) return true;
    return false;
  }

  final private boolean jj_3R_31() {
    if (jj_scan_token(STR_NE)) return true;
    return false;
  }

  final private boolean jj_3R_25() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_30()) {
    jj_scanpos = xsp;
    if (jj_3R_31()) return true;
    }
    return false;
  }

  final private boolean jj_3R_30() {
    if (jj_scan_token(STR_EQ)) return true;
    return false;
  }

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

  final private boolean jj_3R_23() {
    if (jj_scan_token(STR_NMATCH)) return true;
    if (jj_3R_27()) return true;
    return false;
  }

  final private boolean jj_3R_38() {
    Token xsp;
    xsp = jj_scanpos;
    if (jj_3R_41()) {
    jj_scanpos = xsp;
    if (jj_3R_42()) {
    jj_scanpos = xsp;
    if (jj_3R_43()) {
    jj_scanpos = xsp;
    if (jj_3R_44()) return true;
    }
    }
    }
    return false;
  }

  final private boolean jj_3R_41() {
    if (jj_3R_48()) return true;
    return false;
  }

  final private boolean jj_3R_10() {
    if (jj_3R_11()) return true;
    Token xsp;
    while (true) {
      xsp = jj_scanpos;
      if (jj_3R_12()) { jj_scanpos = xsp; break; }
    }
    return false;
  }

  final private boolean jj_3R_22() {
    if (jj_scan_token(STR_MATCH)) return true;
    if (jj_3R_27()) return true;
    return false;
  }

  final private boolean jj_3R_51() {
    if (jj_scan_token(REM)) return true;
    return false;
  }

  final private boolean jj_3R_50() {
    if (jj_scan_token(SLASH)) return true;
    return false;
  }

  public RdqlParserTokenManager token_source;
  JavaCharStream jj_input_stream;
  public Token token, jj_nt;
  private int jj_ntk;
  private Token jj_scanpos, jj_lastpos;
  private int jj_la;
  public boolean lookingAhead = false;
  private boolean jj_semLA;
  private int jj_gen;
  final private int[] jj_la1 = new int[29];
  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[] {0x0,0x4000000,0x4000000,0x0,0x4000000,0x0,0x0,0x4000000,0x100000,0x14000000,0x4000000,0x4000000,0x10000,0x20000,0x1803f00,0x0,0x100c4000,0x0,0x3f00,0xc0000,0xc0000,0x700000,0x700000,0x100c0000,0x0,0x0,0x0,0x0,0x0,};
   }
   private static void jj_la1_1() {
      jj_la1_1 = new int[] {0x20,0x0,0x8000000,0x6,0x1000000,0x6,0x10,0x4000000,0x4000000,0x0,0x10,0x10,0x0,0x0,0x180,0x600,0x7001800,0x180,0x0,0x0,0x0,0x0,0x0,0x7001800,0x7000000,0x7001800,0x3001800,0x3000000,0x1000,};
   }
   private static void jj_la1_2() {
      jj_la1_2 = new int[] {0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x18,0x0,0x0,0x0,0x0,0x0,0x0,0x18,0x0,0x18,0x18,0x0,0x18,};
   }
  final private JJCalls[] jj_2_rtns = new JJCalls[1];
  private boolean jj_rescan = false;
  private int jj_gc = 0;

  public RdqlParser(java.io.InputStream stream) {
    jj_input_stream = new JavaCharStream(stream, 1, 1);
    token_source = new RdqlParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 29; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  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 < 29; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public RdqlParser(java.io.Reader stream) {
    jj_input_stream = new JavaCharStream(stream, 1, 1);
    token_source = new RdqlParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 29; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  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 < 29; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public RdqlParser(RdqlParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 29; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  public void ReInit(RdqlParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 29; i++) jj_la1[i] = -1;
    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
  }

  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++;
      if (++jj_gc > 100) {
        jj_gc = 0;
        for (int i = 0; i < jj_2_rtns.length; i++) {
          JJCalls c = jj_2_rtns[i];
          while (c != null) {
            if (c.gen < jj_gen) c.first = null;
            c = c.next;
          }
        }
      }
      return token;
    }
    token = oldToken;
    jj_kind = kind;
    throw generateParseException();
  }

  static private final class LookaheadSuccess extends java.lang.Error { }
  final private LookaheadSuccess jj_ls = new LookaheadSuccess();
  final private boolean jj_scan_token(int kind) {
    if (jj_scanpos == jj_lastpos) {
      jj_la--;
      if (jj_scanpos.next == null) {
        jj_lastpos = jj_scanpos = jj_scanpos.next = token_source.getNextToken();
      } else {
        jj_lastpos = jj_scanpos = jj_scanpos.next;
      }
    } else {
      jj_scanpos = jj_scanpos.next;
    }
    if (jj_rescan) {
      int i = 0; Token tok = token;
      while (tok != null && tok != jj_scanpos) { i++; tok = tok.next; }
      if (tok != null) jj_add_error_token(kind, i);
    }
    if (jj_scanpos.kind != kind) return true;
    if (jj_la == 0 && jj_scanpos == jj_lastpos) throw jj_ls;
    return false;
  }

  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 = lookingAhead ? jj_scanpos : 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;
  private int[] jj_lasttokens = new int[100];
  private int jj_endpos;

  private void jj_add_error_token(int kind, int pos) {
    if (pos >= 100) return;
    if (pos == jj_endpos + 1) {
      jj_lasttokens[jj_endpos++] = kind;
    } else if (jj_endpos != 0) {
      jj_expentry = new int[jj_endpos];
      for (int i = 0; i < jj_endpos; i++) {
        jj_expentry[i] = jj_lasttokens[i];
      }
      boolean exists = false;
      for (java.util.Enumeration e = jj_expentries.elements(); e.hasMoreElements();) {
        int[] oldentry = (int[])(e.nextElement());
        if (oldentry.length == jj_expentry.length) {
          exists = true;
          for (int i = 0; i < jj_expentry.length; i++) {
            if (oldentry[i] != jj_expentry[i]) {
              exists = false;
              break;
            }
          }
          if (exists) break;
        }
      }
      if (!exists) jj_expentries.addElement(jj_expentry);
      if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
    }
  }

  public ParseException generateParseException() {
    jj_expentries.removeAllElements();
    boolean[] la1tokens = new boolean[69];
    for (int i = 0; i < 69; i++) {
      la1tokens[i] = false;
    }
    if (jj_kind >= 0) {
      la1tokens[jj_kind] = true;
      jj_kind = -1;
    }
    for (int i = 0; i < 29; 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 < 69; i++) {
      if (la1tokens[i]) {
        jj_expentry = new int[1];
        jj_expentry[0] = i;
        jj_expentries.addElement(jj_expentry);
      }
    }
    jj_endpos = 0;
    jj_rescan_token();
    jj_add_error_token(0, 0);
    int[][] exptokseq = new int[jj_expentries.size()][];
    for (int i = 0; i < jj_expentries.size(); i++) {
      exptokseq[i] = (int[])jj_expentries.elementAt(i);
    }
    return new ParseException(token, exptokseq, tokenImage);
  }

  final public void enable_tracing() {
  }

  final public void disable_tracing() {
  }

  final private void jj_rescan_token() {
    jj_rescan = true;
    for (int i = 0; i < 1; i++) {
      JJCalls p = jj_2_rtns[i];
      do {
        if (p.gen > jj_gen) {
          jj_la = p.arg; jj_lastpos = jj_scanpos = p.first;
          switch (i) {
            case 0: jj_3_1(); break;
          }
        }
        p = p.next;
      } while (p != null);
    }
    jj_rescan = false;
  }

  final private void jj_save(int index, int xla) {
    JJCalls p = jj_2_rtns[index];
    while (p.gen > jj_gen) {
      if (p.next == null) { p = p.next = new JJCalls(); break; }
      p = p.next;
    }
    p.gen = jj_gen + xla - jj_la; p.first = token; p.arg = xla;
  }

  static final class JJCalls {
    int gen;
    Token first;
    int arg;
    JJCalls next;
  }

}