/* Generated By:JavaCC: Do not edit this line. Parser.java */
import edu.neu.ccs.demeter.dj.*;
import java.util.*;
import java.io.*;
import edu.neu.ccs.demeter.*;
public class Parser implements ParserConstants {
  // oit is uugly.  Why isn't there a Character.valueOf(String)? 
  static char unescapifyChar(String s) {
    char c = s.charAt(0);
    if (c == '\\') {
      switch (s.charAt(1)) {
      case 'n': c = '\n'; break;
      case 't': c = '\t'; break;
      case 'b': c = '\b'; break;
      case 'r': c = '\r'; break;
      case 'f': c = '\f'; break;
      case '\\': c = '\\'; break;
      case '\'': c = '\''; break;
      case '\"': c = '\"'; break;
      default:
       c = (char) Integer.parseInt(s.substring(1, s.length()), 8);
       break;
      }
    }
    return c;
  }
  // Even uglier... 
  static String unescapify(String s) {
    char str[] = new char[s.length()];
    int i = 0, o = 0;
    while (i < s.length()) {
      char c = s.charAt(i++);
      if (c == '\\') {
       int j = i + 1;
       while (j < s.length() &&
              Character.digit(s.charAt(j), 8) != -1) {
         j++;
       }
       c = unescapifyChar(s.substring(i-1, j));
       i = j;
      }
      str[o++] = c;
    }
    return String.valueOf(str, 0, o);
  }

  final public CSP _CSP() throws ParseException {
  CSP it = null;
  Comment_List _comments;
  Preamble _preamble;
  Constraint_List _constraints;
    it=new CSP();
    _comments = _Comment_List();
                              it.set_comments(_comments);
    _preamble = _Preamble();
                          it.set_preamble(_preamble);
    _constraints = _Constraint_List();
                                    it.set_constraints(_constraints);
    jj_consume_token(0);
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Comment _Comment() throws ParseException {
  Comment it = null;
  Line _comment;
    it=new Comment();
    jj_consume_token(1);
    _comment = _Line();
                          it.set_comment(_comment);
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Preamble _Preamble() throws ParseException {
  Preamble it = null;
  int _numVariables;
  int _numConstraints;
  Rank _rank;
    it=new Preamble();
    jj_consume_token(2);
    _numVariables = _int();
                              it.set_numVariables(_numVariables);
    _numConstraints = _int();
                           it.set_numConstraints(_numConstraints);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case 3:
      jj_consume_token(3);
      _rank = _Rank();
                             it.set_rank(_rank);
      break;
    default:
      jj_la1[0] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Constraint _Constraint() throws ParseException {
  Constraint it = null;
  Relation _relation;
  Weight _weight;
  Variable_List _variable_list;
    it=new Constraint();
    _relation = _Relation();
                          it.set_relation(_relation);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DECIMAL_LITERAL:
    case HEX_LITERAL:
    case OCTAL_LITERAL:
    case FLOATING_POINT_LITERAL:
      _weight = _Weight();
                         it.set_weight(_weight);
      break;
    default:
      jj_la1[1] = jj_gen;
      ;
    }
    jj_consume_token(4);
    _variable_list = _Variable_List();
                                         it.set_variable_list(_variable_list);
    jj_consume_token(5);
         {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Relation _Relation() throws ParseException {
  Relation it = null;
  int _relationNumber;
    it=new Relation();
    _relationNumber = _int();
                           it.set_relationNumber(_relationNumber);
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Weight _Weight() throws ParseException {
  Weight it = null;
  int _v;
    it=new Weight();
    _v = _int();
              it.set_v(_v);
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Variable _Variable() throws ParseException {
  Variable it = null;
  int _v;
    it=new Variable();
    _v = _int();
              it.set_v(_v);
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Rank _Rank() throws ParseException {
  Rank it = null;
  int _v;
    it=new Rank();
    _v = _int();
              it.set_v(_v);
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Main _Main() throws ParseException {
  Main it = null;
    it=new Main();
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Comment_List _Comment_List() throws ParseException {
  Comment_List it = null;
  Nonempty_Comment_List _first;
    it=new Comment_List();
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case 1:
      _first = _Nonempty_Comment_List();
                                       it.set_first(_first);
      break;
    default:
      jj_la1[2] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Constraint_List _Constraint_List() throws ParseException {
  Constraint_List it = null;
  Nonempty_Constraint_List _first;
    it=new Constraint_List();
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DECIMAL_LITERAL:
    case HEX_LITERAL:
    case OCTAL_LITERAL:
    case FLOATING_POINT_LITERAL:
      _first = _Nonempty_Constraint_List();
                                          it.set_first(_first);
      break;
    default:
      jj_la1[3] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Variable_List _Variable_List() throws ParseException {
  Variable_List it = null;
  Nonempty_Variable_List _first;
    it=new Variable_List();
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DECIMAL_LITERAL:
    case HEX_LITERAL:
    case OCTAL_LITERAL:
    case FLOATING_POINT_LITERAL:
      _first = _Nonempty_Variable_List();
                                        it.set_first(_first);
      break;
    default:
      jj_la1[4] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Nonempty_Comment_List _Nonempty_Comment_List() throws ParseException {
  Nonempty_Comment_List it = null;
  Comment _it;
  Nonempty_Comment_List _next;
    it=new Nonempty_Comment_List();
    _it = _Comment();
                   it.set_it(_it);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case 1:
      _next = _Nonempty_Comment_List();
                                      it.set_next(_next);
      break;
    default:
      jj_la1[5] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Nonempty_Constraint_List _Nonempty_Constraint_List() throws ParseException {
  Nonempty_Constraint_List it = null;
  Constraint _it;
  Nonempty_Constraint_List _next;
    it=new Nonempty_Constraint_List();
    _it = _Constraint();
                      it.set_it(_it);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DECIMAL_LITERAL:
    case HEX_LITERAL:
    case OCTAL_LITERAL:
    case FLOATING_POINT_LITERAL:
      _next = _Nonempty_Constraint_List();
                                         it.set_next(_next);
      break;
    default:
      jj_la1[6] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public Nonempty_Variable_List _Nonempty_Variable_List() throws ParseException {
  Nonempty_Variable_List it = null;
  Variable _it;
  Nonempty_Variable_List _next;
    it=new Nonempty_Variable_List();
    _it = _Variable();
                    it.set_it(_it);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DECIMAL_LITERAL:
    case HEX_LITERAL:
    case OCTAL_LITERAL:
    case FLOATING_POINT_LITERAL:
      _next = _Nonempty_Variable_List();
                                       it.set_next(_next);
      break;
    default:
      jj_la1[7] = jj_gen;
      ;
    }
    {if (true) return it;}
    throw new Error("Missing return statement in function");
  }

  final public boolean _boolean() throws ParseException {
                       Token t;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case TRUE:
      t = jj_consume_token(TRUE);
               {if (true) return true;}
      break;
    case FALSE:
      t = jj_consume_token(FALSE);
                {if (true) return false;}
      break;
    default:
      jj_la1[8] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public char _char() throws ParseException {
                 Token t;
    t = jj_consume_token(CHARACTER_LITERAL);
       String s = t.image;
       {if (true) return unescapifyChar(s.substring(1, s.length()-1));}
    throw new Error("Missing return statement in function");
  }

  final public byte _byte() throws ParseException {
                 int i;
    i = _int();
             {if (true) return (byte) i;}
    throw new Error("Missing return statement in function");
  }

  final public short _short() throws ParseException {
                   int i;
    i = _int();
             {if (true) return (short) i;}
    throw new Error("Missing return statement in function");
  }

  final public int _int() throws ParseException {
               Number num;
    num = _Number();
                  {if (true) return num.intValue();}
    throw new Error("Missing return statement in function");
  }

  final public long _long() throws ParseException {
                 Number num;
    num = _Number();
                  {if (true) return num.longValue();}
    throw new Error("Missing return statement in function");
  }

  final public float _float() throws ParseException {
                   Number num;
    num = _Number();
                  {if (true) return num.floatValue();}
    throw new Error("Missing return statement in function");
  }

  final public double _double() throws ParseException {
                     Number num;
    num = _Number();
                  {if (true) return num.doubleValue();}
    throw new Error("Missing return statement in function");
  }

  final public Boolean _Boolean() throws ParseException {
                       Token t;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case TRUE:
      t = jj_consume_token(TRUE);
               {if (true) return Boolean.TRUE;}
      break;
    case FALSE:
      t = jj_consume_token(FALSE);
                {if (true) return Boolean.FALSE;}
      break;
    default:
      jj_la1[9] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
    throw new Error("Missing return statement in function");
  }

  final public Character _Character() throws ParseException {
                           char c;
    c = _char();
              {if (true) return new Character(c);}
    throw new Error("Missing return statement in function");
  }

  final public Integer _Integer() throws ParseException {
                       int i;
    i = _int();
               {if (true) return new Integer(i);}
    throw new Error("Missing return statement in function");
  }

  final public Long _Long() throws ParseException {
                 long l;
    l = _long();
              {if (true) return new Long(l);}
    throw new Error("Missing return statement in function");
  }

  final public Float _Float() throws ParseException {
                   float f;
    f = _float();
               {if (true) return new Float(f);}
    throw new Error("Missing return statement in function");
  }

  final public Double _Double() throws ParseException {
                     double d;
    d = _double();
                {if (true) return new Double(d);}
    throw new Error("Missing return statement in function");
  }

  final public Number _Number() throws ParseException {
    Token t;
    String s = null;
    int radix = 0;
    Number num = null;
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case DECIMAL_LITERAL:
    case HEX_LITERAL:
    case OCTAL_LITERAL:
      switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
      case DECIMAL_LITERAL:
        t = jj_consume_token(DECIMAL_LITERAL);
       s = t.image;
       radix = 10;
        break;
      case HEX_LITERAL:
        t = jj_consume_token(HEX_LITERAL);
       // Strip off the "0x". 
       s = t.image.substring(2, t.image.length());
       radix = 16;
        break;
      case OCTAL_LITERAL:
        t = jj_consume_token(OCTAL_LITERAL);
       s = t.image;
       radix = 8;
        break;
      default:
        jj_la1[10] = jj_gen;
        jj_consume_token(-1);
        throw new ParseException();
      }
       switch (s.charAt(s.length()-1)) {
       case 'l': case 'L':
         s = s.substring(0, s.length()-1);
         num = new Long(new java.math.BigInteger(s, radix).longValue());
         break;
       default:
         num = new Integer(new java.math.BigInteger(s, radix).intValue());
         break;
       }
      break;
    case FLOATING_POINT_LITERAL:
      t = jj_consume_token(FLOATING_POINT_LITERAL);
       s = t.image;
       switch (s.charAt(s.length()-1)) {
       case 'd': case 'D':
           num = Double.valueOf(s.substring(0, s.length()-1));
           break;
       case 'f': case 'F':
           num = Float.valueOf(s.substring(0, s.length()-1));
           break;
       default:
           num = Float.valueOf(s);
           break;
       }
      break;
    default:
      jj_la1[11] = jj_gen;
      jj_consume_token(-1);
      throw new ParseException();
    }
      {if (true) return num;}
    throw new Error("Missing return statement in function");
  }

  final public String _String() throws ParseException {
                     Token t;
    t = jj_consume_token(STRING_LITERAL);
       String s = t.image;
       {if (true) return unescapify(s.substring(1, s.length()-1));}
    throw new Error("Missing return statement in function");
  }

  final public StringBuffer _StringBuffer() throws ParseException {
                                 String s;
    s = _String();
                {if (true) return new StringBuffer(s);}
    throw new Error("Missing return statement in function");
  }

  final public Ident _Ident() throws ParseException {
                   Token t;
    t = jj_consume_token(IDENTIFIER);
       {if (true) return new Ident(t.image);}
    throw new Error("Missing return statement in function");
  }

  final public Text _Text() throws ParseException {
                 Token t;
    t = jj_consume_token(TEXT_LITERAL);
       String s = t.image;
       {if (true) return new Text(s.substring(2, s.length()-2));}
    throw new Error("Missing return statement in function");
  }

  final public Line _Line() throws ParseException {
                 Token t;
      token_source.SwitchTo(1);
    t = jj_consume_token(LINE);
       {if (true) return new Line(t.image);}
    throw new Error("Missing return statement in function");
  }

  final public Word _Word() throws ParseException {
                 Token t;
      token_source.SwitchTo(2);
    t = jj_consume_token(WORD);
       {if (true) return new Word(t.image);}
    throw new Error("Missing return statement in function");
  }

  public ParserTokenManager token_source;
  ASCII_UCodeESC_CharStream jj_input_stream;
  public Token token, jj_nt;
  private int jj_ntk;
  private int jj_gen;
  final private int[] jj_la1 = new int[12];
  final private int[] jj_la1_0 = {0x8,0xf000,0x2,0xf000,0xf000,0x2,0xf000,0xf000,0x300000,0x300000,0x7000,0xf000,};

  public Parser(java.io.InputStream stream) {
    jj_input_stream = new ASCII_UCodeESC_CharStream(stream, 1, 1);
    token_source = new ParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 12; 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 < 12; i++) jj_la1[i] = -1;
  }

  public Parser(java.io.Reader stream) {
    jj_input_stream = new ASCII_UCodeESC_CharStream(stream, 1, 1);
    token_source = new ParserTokenManager(jj_input_stream);
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 12; 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 < 12; i++) jj_la1[i] = -1;
  }

  public Parser(ParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 12; i++) jj_la1[i] = -1;
  }

  public void ReInit(ParserTokenManager tm) {
    token_source = tm;
    token = new Token();
    jj_ntk = -1;
    jj_gen = 0;
    for (int i = 0; i < 12; 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;

  final public ParseException generateParseException() {
    jj_expentries.removeAllElements();
    boolean[] la1tokens = new boolean[31];
    for (int i = 0; i < 31; i++) {
      la1tokens[i] = false;
    }
    if (jj_kind >= 0) {
      la1tokens[jj_kind] = true;
      jj_kind = -1;
    }
    for (int i = 0; i < 12; 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;
          }
        }
      }
    }
    for (int i = 0; i < 31; i++) {
      if (la1tokens[i]) {
        jj_expentry = new int[1];
        jj_expentry[0] = i;
        jj_expentries.addElement(jj_expentry);
      }
    }
    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() {
  }

}