// $ANTLR : "program.g" -> "programParser.java"$

import edu.neu.ccs.demeter.*;

import antlr.TokenBuffer;
import antlr.TokenStreamException;
import antlr.TokenStreamIOException;
import antlr.ANTLRException;
import antlr.LLkParser;
import antlr.Token;
import antlr.TokenStream;
import antlr.RecognitionException;
import antlr.NoViableAltException;
import antlr.MismatchedTokenException;
import antlr.SemanticException;
import antlr.ParserSharedInputState;
import antlr.collections.impl.BitSet;

public class programParser extends antlr.LLkParser       implements programParserTokenTypes
 {

  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;
  }
  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);
  }

protected programParser(TokenBuffer tokenBuf, int k) {
  super(tokenBuf,k);
  tokenNames = _tokenNames;
}

public programParser(TokenBuffer tokenBuf) {
  this(tokenBuf,1);
}

protected programParser(TokenStream lexer, int k) {
  super(lexer,k);
  tokenNames = _tokenNames;
}

public programParser(TokenStream lexer) {
  this(lexer,1);
}

public programParser(ParserSharedInputState state) {
  super(state,1);
  tokenNames = _tokenNames;
}

	public final Molecule  parseMolecule() throws RecognitionException, TokenStreamException {
		Molecule it;
		
		
		it = new Molecule();
		MoleculeId the_moleculeId = null;
		Atoms the_atoms = null;
		Bonds the_bonds = null;
		
		
		match(4);
		the_moleculeId=parseMoleculeId();
		it.moleculeId = the_moleculeId;
		match(5);
		the_atoms=parseAtoms();
		it.atoms = the_atoms;
		the_bonds=parseBonds();
		it.bonds = the_bonds;
		match(6);
		return it;
	}
	
	public final MoleculeId  parseMoleculeId() throws RecognitionException, TokenStreamException {
		MoleculeId it;
		
		
		it = new MoleculeId();
		String the_string = null;
		
		
		match(11);
		the_string=parseString();
		it.string = the_string;
		return it;
	}
	
	public final Atoms  parseAtoms() throws RecognitionException, TokenStreamException {
		Atoms it;
		
		
		it = new Atoms();
		Atom_List the_atom_List = null;
		
		
		match(7);
		the_atom_List=parseAtom_List();
		it.atom_List = the_atom_List;
		match(8);
		return it;
	}
	
	public final Bonds  parseBonds() throws RecognitionException, TokenStreamException {
		Bonds it;
		
		
		it = new Bonds();
		Bond_List the_bond_List = null;
		
		
		match(14);
		the_bond_List=parseBond_List();
		it.bond_List = the_bond_List;
		match(15);
		return it;
	}
	
	public final Atom_List  parseAtom_List() throws RecognitionException, TokenStreamException {
		Atom_List it;
		
		
		it = new Atom_List();
		Atom the_repeatedPart = null;
		
		
		{
		_loop14:
		do {
			if ((LA(1)==9)) {
				the_repeatedPart=parseAtom();
				it.add(the_repeatedPart);
			}
			else {
				break _loop14;
			}
			
		} while (true);
		}
		return it;
	}
	
	public final Atom  parseAtom() throws RecognitionException, TokenStreamException {
		Atom it;
		
		
		it = new Atom();
		AtomId the_atomId = null;
		ElementType the_elementType = null;
		HydrogenCount the_hydrogenCount = null;
		
		
		match(9);
		the_atomId=parseAtomId();
		it.atomId = the_atomId;
		the_elementType=parseElementType();
		it.elementType = the_elementType;
		the_hydrogenCount=parseHydrogenCount();
		it.hydrogenCount = the_hydrogenCount;
		match(5);
		match(10);
		return it;
	}
	
	public final AtomId  parseAtomId() throws RecognitionException, TokenStreamException {
		AtomId it;
		
		
		it = new AtomId();
		String the_string = null;
		
		
		match(11);
		the_string=parseString();
		it.string = the_string;
		return it;
	}
	
	public final ElementType  parseElementType() throws RecognitionException, TokenStreamException {
		ElementType it;
		
		
		it = new ElementType();
		String the_string = null;
		
		
		match(12);
		the_string=parseString();
		it.string = the_string;
		return it;
	}
	
	public final HydrogenCount  parseHydrogenCount() throws RecognitionException, TokenStreamException {
		HydrogenCount it;
		
		
		it = new HydrogenCount();
		String the_string = null;
		
		
		match(13);
		the_string=parseString();
		it.string = the_string;
		return it;
	}
	
	public final String  parseString() throws RecognitionException, TokenStreamException {
		String it;
		
		Token  t = null;
		
		t = LT(1);
		match(STRING_LITERAL);
		String s = t.getText();
		it = unescapify(s.substring(1, s.length()-1));
		return it;
	}
	
	public final Bond_List  parseBond_List() throws RecognitionException, TokenStreamException {
		Bond_List it;
		
		
		it = new Bond_List();
		Bond the_repeatedPart = null;
		
		
		{
		_loop17:
		do {
			if ((LA(1)==16)) {
				the_repeatedPart=parseBond();
				it.add(the_repeatedPart);
			}
			else {
				break _loop17;
			}
			
		} while (true);
		}
		return it;
	}
	
	public final Bond  parseBond() throws RecognitionException, TokenStreamException {
		Bond it;
		
		
		it = new Bond();
		BondId the_bondId = null;
		AtomRefs2 the_atomRefs2 = null;
		
		
		match(16);
		the_bondId=parseBondId();
		it.bondId = the_bondId;
		the_atomRefs2=parseAtomRefs2();
		it.atomRefs2 = the_atomRefs2;
		match(17);
		return it;
	}
	
	public final BondId  parseBondId() throws RecognitionException, TokenStreamException {
		BondId it;
		
		
		it = new BondId();
		String the_string = null;
		
		
		match(11);
		the_string=parseString();
		it.string = the_string;
		return it;
	}
	
	public final AtomRefs2  parseAtomRefs2() throws RecognitionException, TokenStreamException {
		AtomRefs2 it;
		
		
		it = new AtomRefs2();
		String the_first = null;
		String the_second = null;
		
		
		match(18);
		the_first=parseString();
		it.first = the_first;
		the_second=parseString();
		it.second = the_second;
		return it;
	}
	
	public final boolean  parseboolean() throws RecognitionException, TokenStreamException {
		boolean it;
		
		
		switch ( LA(1)) {
		case LITERAL_true:
		{
			match(LITERAL_true);
			it = true;
			break;
		}
		case LITERAL_false:
		{
			match(LITERAL_false);
			it = false;
			break;
		}
		default:
		{
			throw new NoViableAltException(LT(1), getFilename());
		}
		}
		return it;
	}
	
	public final char  parsechar() throws RecognitionException, TokenStreamException {
		char it;
		
		Token  t = null;
		
		t = LT(1);
		match(CHAR_LITERAL);
		String s = t.getText();
		it = unescapifyChar(s.substring(1, s.length()-1));
		return it;
	}
	
	public final byte  parsebyte() throws RecognitionException, TokenStreamException {
		byte it;
		
		int i;
		
		i=parseint();
		it = (byte) i;
		return it;
	}
	
	public final int  parseint() throws RecognitionException, TokenStreamException {
		int it;
		
		Token  t = null;
		
		t = LT(1);
		match(NUM_INT);
		it = Integer.parseInt(t.getText());
		return it;
	}
	
	public final short  parseshort() throws RecognitionException, TokenStreamException {
		short it;
		
		int i;
		
		i=parseint();
		it = (short) i;
		return it;
	}
	
	public final long  parselong() throws RecognitionException, TokenStreamException {
		long it;
		
		Token  t = null;
		
		t = LT(1);
		match(NUM_LONG);
		String s = t.getText();
		it = Long.parseLong(s.substring(0,s.length()-1));
		return it;
	}
	
	public final float  parsefloat() throws RecognitionException, TokenStreamException {
		float it;
		
		Token  t = null;
		
		t = LT(1);
		match(NUM_FLOAT);
		String s = t.getText();
		it = Float.parseFloat(s.substring(0,s.length()-1));
		return it;
	}
	
	public final double  parsedouble() throws RecognitionException, TokenStreamException {
		double it;
		
		Token  t = null;
		
		t = LT(1);
		match(NUM_DOUBLE);
		String s = t.getText();
		if (s.endsWith("D") || s.endsWith("d"))
		it = Double.parseDouble(s.substring(0,s.length()-1));
		else
		it = Double.parseDouble(s);
		return it;
	}
	
	public final Boolean  parseBoolean() throws RecognitionException, TokenStreamException {
		Boolean it;
		
		
		switch ( LA(1)) {
		case LITERAL_true:
		{
			match(LITERAL_true);
			it = Boolean.TRUE;
			break;
		}
		case LITERAL_false:
		{
			match(LITERAL_false);
			it = Boolean.FALSE;
			break;
		}
		default:
		{
			throw new NoViableAltException(LT(1), getFilename());
		}
		}
		return it;
	}
	
	public final Character  parseCharacter() throws RecognitionException, TokenStreamException {
		Character it;
		
		char c;
		
		c=parsechar();
		it = new Character(c);
		return it;
	}
	
	public final Byte  parseByte() throws RecognitionException, TokenStreamException {
		Byte it;
		
		byte b;
		
		b=parsebyte();
		it = new Byte(b);
		return it;
	}
	
	public final Integer  parseInteger() throws RecognitionException, TokenStreamException {
		Integer it;
		
		int i;
		
		i=parseint();
		it = new Integer(i);
		return it;
	}
	
	public final Long  parseLong() throws RecognitionException, TokenStreamException {
		Long it;
		
		long l;
		
		l=parselong();
		it = new Long(l);
		return it;
	}
	
	public final Float  parseFloat() throws RecognitionException, TokenStreamException {
		Float it;
		
		float f;
		
		f=parsefloat();
		it = new Float(f);
		return it;
	}
	
	public final Double  parseDouble() throws RecognitionException, TokenStreamException {
		Double it;
		
		double d;
		
		d=parsedouble();
		it = new Double(d);
		return it;
	}
	
	public final Number  parseNumber() throws RecognitionException, TokenStreamException {
		Number it;
		
		
		switch ( LA(1)) {
		case NUM_INT:
		{
			it=parseInteger();
			break;
		}
		case NUM_LONG:
		{
			it=parseLong();
			break;
		}
		case NUM_FLOAT:
		{
			it=parseFloat();
			break;
		}
		case NUM_DOUBLE:
		{
			it=parseDouble();
			break;
		}
		default:
		{
			throw new NoViableAltException(LT(1), getFilename());
		}
		}
		return it;
	}
	
	public final Ident  parseIdent() throws RecognitionException, TokenStreamException {
		Ident it;
		
		Token  t = null;
		
		t = LT(1);
		match(IDENT);
		it = new Ident(t.getText());
		return it;
	}
	
	
	public static final String[] _tokenNames = {
		"<0>",
		"EOF",
		"<2>",
		"NULL_TREE_LOOKAHEAD",
		"\"<molecule\"",
		"\">\"",
		"\"</molecule>\"",
		"\"<atomArray>\"",
		"\"</atomArray>\"",
		"\"<atom\"",
		"\"</atom>\"",
		"\"id=\"",
		"\"elementType=\"",
		"\"hydrogenCount=\"",
		"\"<bondArray>\"",
		"\"</bondArray>\"",
		"\"<bond\"",
		"\"/>\"",
		"\"atomRefs2=\"",
		"\"true\"",
		"\"false\"",
		"CHAR_LITERAL",
		"NUM_INT",
		"NUM_LONG",
		"NUM_FLOAT",
		"NUM_DOUBLE",
		"STRING_LITERAL",
		"IDENT",
		"DOT",
		"WS",
		"SL_COMMENT",
		"ML_COMMENT",
		"ESC",
		"HEX_DIGIT",
		"VOCAB",
		"EXPONENT",
		"FLOAT_SUFFIX"
	};
	
	
	}