bundles/org.eclipse.uomo.units/src/main/java/org/eclipse/uomo/units/impl/format/UnitParser.java - gerrit/osbp/org.eclipse.osbp.fork.uomo - Git at Google

 /**
  * Copyright (c) 2005, 2010, Werner Keil, Ikayzo and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Werner Keil, Ikayzo and others - initial API and implementation
  */
 /* Generated By:JavaCC: Do not edit this line. UnitParser.java */
 package org.eclipse.uomo.units.impl.format;

 import org.eclipse.uomo.units.AbstractUnit;
 import org.eclipse.uomo.units.impl.converter.LogConverter;
 import org.unitsofmeasurement.unit.Unit;

 /** */
 class UnitParser implements UnitParserConstants {

     private static class Exponent {
         final int pow;
         final int root;
         public Exponent (int pow, int root) {
             this.pow = pow;
             this.root = root;
         }
     }

     private SymbolMapImpl symbols;

     UnitParser (SymbolMapImpl symbols, java.io.Reader in) {
         this(in);
         this.symbols = symbols;
     }

 //
 // Parser productions
 //
     @SuppressWarnings("unused")
 	Unit<?> parseUnit() throws ParseException {
         Unit<?> result;
     result = compoundExpr();
     jj_consume_token(0);
         {if (true) return result;}
     throw new Error("Missing return statement in function");
   }

   @SuppressWarnings("unused")
 Unit<?> compoundExpr() throws ParseException {
         Unit<?> result = AbstractUnit.ONE;
         result = addExpr();
     label_1:
     while (true) {
       switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
       case COLON:
         ;
         break;
       default:
         jj_la1[0] = jj_gen;
         break label_1;
       }
       jj_consume_token(COLON);
     }
       {if (true) return result;}
     throw new Error("Missing return statement in function");
   }

   @SuppressWarnings("unused")
 Unit<?> addExpr() throws ParseException {
         Unit<?> result = AbstractUnit.ONE;
         Number n1 = null;
         Token sign1 = null;
         Number n2 = null;
         Token sign2 = null;
     if (jj_2_1(2147483647)) {
       n1 = numberExpr();
       sign1 = sign();
     } else {
       ;
     }
     result = mulExpr();
     switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
     case PLUS:
     case MINUS:
       sign2 = sign();
       n2 = numberExpr();
       break;
     default:
       jj_la1[1] = jj_gen;
       ;
     }
         if (n1 != null) {
             if (sign1.image.equals("-")) {
                 result = result.multiply(-1);
             }
             result = result.add(n1.doubleValue());
         }
         if (n2 != null) {
             double offset = n2.doubleValue();
             if (sign2.image.equals("-")) {
                 offset = -offset;
             }
             result = result.add(offset);
         }
         {if (true) return result;}
     throw new Error("Missing return statement in function");
   }

     Unit<?> mulExpr() throws ParseException {
         Unit<?> result = AbstractUnit.ONE;
         Unit<?> temp = AbstractUnit.ONE;
     result = exponentExpr();
     label_2:
     while (true) {
       switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
       case ASTERISK:
       case MIDDLE_DOT:
       case SOLIDUS:
         ;
         break;
       default:
         jj_la1[2] = jj_gen;
         break label_2;
       }
       switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
       case ASTERISK:
       case MIDDLE_DOT:
         switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
         case ASTERISK:
           jj_consume_token(ASTERISK);
           break;
         case MIDDLE_DOT:
           jj_consume_token(MIDDLE_DOT);
           break;
         default:
           jj_la1[3] = jj_gen;
           jj_consume_token(-1);
           throw new ParseException();
         }
         temp = exponentExpr();
                                                           result=result.multiply(temp);
         break;
       case SOLIDUS:
         jj_consume_token(SOLIDUS);
         temp = exponentExpr();
                                         result=result.divide(temp);
         break;
       default:
         jj_la1[4] = jj_gen;
         jj_consume_token(-1);
         throw new ParseException();
       }
     }
       //{if (true)
     	  return result;//}
 //    throw new Error("Missing return statement in function");
   }

     @SuppressWarnings("unused")
 	Unit<?> exponentExpr() throws ParseException {
         Unit<?> result = AbstractUnit.ONE;
         Exponent exponent = null;
         Token token = null;
     if (jj_2_2(2147483647)) {
       switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
       case INTEGER:
         token = jj_consume_token(INTEGER);
         break;
       case E:
         token = jj_consume_token(E);
         break;
       default:
         jj_la1[5] = jj_gen;
         jj_consume_token(-1);
         throw new ParseException();
       }
       jj_consume_token(CARET);
       result = atomicExpr();
         double base;
         if (token.kind == INTEGER) {
             base = Integer.parseInt(token.image);
         } else {
             base = StrictMath.E;
         }
         {if (true) return result.transform(new LogConverter(base).inverse());}
     } else {
       switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
       case OPEN_PAREN:
       case INTEGER:
       case FLOATING_POINT:
       case UNIT_IDENTIFIER:
         result = atomicExpr();
         switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
         case CARET:
         case SUPERSCRIPT_INTEGER:
           exponent = exp();
           break;
         default:
           jj_la1[6] = jj_gen;
           ;
         }
         if (exponent != null) {
             if (exponent.pow != 1) {
                 result = result.pow(exponent.pow);
             }
             if (exponent.root != 1) {
                 result = result.root(exponent.root);
             }
         }
         {if (true) return result;}
 //        break;
       case LOG:
       case NAT_LOG:
         switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
         case LOG:
           jj_consume_token(LOG);
           switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
           case INTEGER:
             token = jj_consume_token(INTEGER);
             break;
           default:
             jj_la1[7] = jj_gen;
             ;
           }
           break;
         case NAT_LOG:
           token = jj_consume_token(NAT_LOG);
           break;
         default:
           jj_la1[8] = jj_gen;
           jj_consume_token(-1);
           throw new ParseException();
         }
         jj_consume_token(OPEN_PAREN);
         result = addExpr();
         jj_consume_token(CLOSE_PAREN);
         double base = 10;
         if (token != null) {
             if (token.kind == INTEGER) {
                 base = Integer.parseInt(token.image);
             } else if (token.kind == NAT_LOG) {
                 base = StrictMath.E;
             }
         }
         {if (true) return result.transform(new LogConverter(base));}
       default:
         jj_la1[9] = jj_gen;
         jj_consume_token(-1);
         throw new ParseException();
       }
     }
     throw new Error("Missing return statement in function");
   }

   Unit<?> atomicExpr() throws ParseException {
         Unit<?> result = AbstractUnit.ONE;
 //        Unit<?> temp = AbstractUnit.ONE;
         Number n = null;
         Token token = null;
     switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
     case INTEGER:
     case FLOATING_POINT:
       n = numberExpr();
         if (n instanceof Integer) {
             {if (true) return result.multiply(n.intValue());}
         } else {
             {if (true) return result.multiply(n.doubleValue());}
         }
 //      break;
     case UNIT_IDENTIFIER:
       token = jj_consume_token(UNIT_IDENTIFIER);
         Unit<?> unit = symbols.getUnit(token.image);
         if (unit == null) {
             ParsePrefix prefix = symbols.getPrefix(token.image);
             if (prefix != null) {
                 String prefixSymbol = symbols.getSymbol(prefix);
                 unit = symbols.getUnit(token.image.substring(prefixSymbol.length()));
                 if (unit != null) {
                     {if (true) return unit.transform(prefix.getConverter());}
                 }
             }
             {if (true) throw new ParseException();}
         } else {
             {if (true) return unit;}
         }
 //      break;
     case OPEN_PAREN:
       jj_consume_token(OPEN_PAREN);
       result = addExpr();
       jj_consume_token(CLOSE_PAREN);
         {if (true) return result;}
 //      break;
     default:
       jj_la1[10] = jj_gen;
       jj_consume_token(-1);
       throw new ParseException();
     }
 //    throw new Error("Missing return statement in function");
   }

   @SuppressWarnings("unused")
 Token sign() throws ParseException {
         Token result = null;
     switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
     case PLUS:
       result = jj_consume_token(PLUS);
       break;
     case MINUS:
       result = jj_consume_token(MINUS);
       break;
     default:
       jj_la1[11] = jj_gen;
       jj_consume_token(-1);
       throw new ParseException();
     }
         {if (true) return result;}
     throw new Error("Missing return statement in function");
   }

   Number numberExpr() throws ParseException {
         Token token = null;
     switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
     case INTEGER:
       token = jj_consume_token(INTEGER);
         {if (true) return Long.valueOf(token.image);}
 //      break;
     case FLOATING_POINT:
       token = jj_consume_token(FLOATING_POINT);
         {if (true) return Double.valueOf(token.image);}
 //      break;
     default:
       jj_la1[12] = jj_gen;
       jj_consume_token(-1);
       throw new ParseException();
     }
 //    throw new Error("Missing return statement in function");
   }

   Exponent exp() throws ParseException {
         Token powSign = null;
         Token powToken = null;
         Token rootSign = null;
         Token rootToken = null;
     switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
     case CARET:
       jj_consume_token(CARET);
       switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
       case PLUS:
       case MINUS:
       case INTEGER:
         switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
         case PLUS:
         case MINUS:
           powSign = sign();
           break;
         default:
           jj_la1[13] = jj_gen;
           ;
         }
         powToken = jj_consume_token(INTEGER);
             int pow = Integer.parseInt(powToken.image);
             if ((powSign != null) && powSign.image.equals("-")) {
                 pow = -pow;
             }
             {if (true) return new Exponent(pow, 1);}
       case OPEN_PAREN:
         jj_consume_token(OPEN_PAREN);
         switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
         case PLUS:
         case MINUS:
           powSign = sign();
           break;
         default:
           jj_la1[14] = jj_gen;
           ;
         }
         powToken = jj_consume_token(INTEGER);
         switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
         case SOLIDUS:
           jj_consume_token(SOLIDUS);
           switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
           case PLUS:
           case MINUS:
             rootSign = sign();
             break;
           default:
             jj_la1[15] = jj_gen;
             ;
           }
           rootToken = jj_consume_token(INTEGER);
           break;
         default:
           jj_la1[16] = jj_gen;
           ;
         }
         jj_consume_token(CLOSE_PAREN);
             pow = Integer.parseInt(powToken.image);
             if ((powSign != null) && powSign.image.equals("-")) {
                 pow = -pow;
             }
             int root = 1;
             if (rootToken != null) {
                 root = Integer.parseInt(rootToken.image);
                 if ((rootSign != null) && rootSign.image.equals("-")) {
                     root = -root;
                 }
             }
             {if (true) return new Exponent(pow, root);}
       default:
         jj_la1[17] = jj_gen;
         jj_consume_token(-1);
         throw new ParseException();
       }
     case SUPERSCRIPT_INTEGER:
       powToken = jj_consume_token(SUPERSCRIPT_INTEGER);
         int pow = 0;
         for (int i = 0; i < powToken.image.length(); i += 1) {
             pow *= 10;
             switch (powToken.image.charAt(i)) {
                 case '\u00b9': pow += 1; break;
                 case '\u00b2': pow += 2; break;
                 case '\u00b3': pow += 3; break;
                 case '\u2074': pow += 4; break;
                 case '\u2075': pow += 5; break;
                 case '\u2076': pow += 6; break;
                 case '\u2077': pow += 7; break;
                 case '\u2078': pow += 8; break;
                 case '\u2079': pow += 9; break;
             }
         }
         {if (true) return new Exponent(pow, 1);}
 //      break;
     default:
       jj_la1[18] = jj_gen;
       jj_consume_token(-1);
       throw new ParseException();
     }
 //    throw new Error("Missing return statement in function");
   }

   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); }
   }

   private boolean jj_2_2(int xla) {
     jj_la = xla; jj_lastpos = jj_scanpos = token;
     try { return !jj_3_2(); }
     catch(LookaheadSuccess ls) { return true; }
     finally { jj_save(1, xla); }
   }

   private boolean jj_3R_3() {
     Token xsp;
     xsp = jj_scanpos;
     if (jj_3R_5()) {
     jj_scanpos = xsp;
     if (jj_3R_6()) return true;
     }
     return false;
   }

   private boolean jj_3R_6() {
     if (jj_scan_token(FLOATING_POINT)) return true;
     return false;
   }

   private boolean jj_3_2() {
     Token xsp;
     xsp = jj_scanpos;
     if (jj_scan_token(14)) {
     jj_scanpos = xsp;
     if (jj_scan_token(19)) return true;
     }
     if (jj_scan_token(CARET)) return true;
     return false;
   }

   private boolean jj_3_1() {
     if (jj_3R_3()) return true;
     if (jj_3R_4()) return true;
     return false;
   }

   private boolean jj_3R_4() {
     Token xsp;
     xsp = jj_scanpos;
     if (jj_scan_token(5)) {
     jj_scanpos = xsp;
     if (jj_scan_token(6)) return true;
     }
     return false;
   }

   private boolean jj_3R_5() {
     if (jj_scan_token(INTEGER)) return true;
     return false;
   }

   /** Generated Token Manager. */
   private UnitParserTokenManager token_source;
   private SimpleCharStream jj_input_stream;
   /** Current token. */
   private Token token;
   /** Next token. */
   private Token jj_nt;
   private int jj_ntk;
   private Token jj_scanpos, jj_lastpos;
   private int jj_la;
   private int jj_gen;
   final private int[] jj_la1 = new int[19];
   static private int[] jj_la1_0;
   static {
       jj_la1_init_0();
    }
    private static void jj_la1_init_0() {
       jj_la1_0 = new int[] {0x800,0x60,0x380,0x180,0x380,0x84000,0x8400,0x4000,0x60000,0x175000,0x115000,0x60,0x14000,0x60,0x60,0x60,0x200,0x5060,0x8400,};
    }
   final private JJCalls[] jj_2_rtns = new JJCalls[2];
   private boolean jj_rescan = false;
   private int jj_gc = 0;

   /** Constructor with InputStream. */
   UnitParser(java.io.InputStream stream) {
      this(stream, null);
   }
   /** Constructor with InputStream and supplied encoding */
   UnitParser(java.io.InputStream stream, String encoding) {
     try { jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
     token_source = new UnitParserTokenManager(jj_input_stream);
     token = new Token();
     jj_ntk = -1;
     jj_gen = 0;
     for (int i = 0; i < 19; i++) jj_la1[i] = -1;
     for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
   }

   /** Constructor. */
   UnitParser(java.io.Reader stream) {
     jj_input_stream = new SimpleCharStream(stream, 1, 1);
     token_source = new UnitParserTokenManager(jj_input_stream);
     token = new Token();
     jj_ntk = -1;
     jj_gen = 0;
     for (int i = 0; i < 19; i++) jj_la1[i] = -1;
     for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
   }

   /** Reinitialise. */
 //  private 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 < 19; i++) jj_la1[i] = -1;
 //    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
 //  }

   /** Constructor with generated Token Manager. */
   UnitParser(UnitParserTokenManager tm) {
     token_source = tm;
     token = new Token();
     jj_ntk = -1;
     jj_gen = 0;
     for (int i = 0; i < 19; i++) jj_la1[i] = -1;
     for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
   }

   /** Reinitialise. */
 //  private void reInit(UnitParserTokenManager tm) {
 //    token_source = tm;
 //    token = new Token();
 //    jj_ntk = -1;
 //    jj_gen = 0;
 //    for (int i = 0; i < 19; i++) jj_la1[i] = -1;
 //    for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
 //  }

   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 {

   /**
    *
    */
   private static final long serialVersionUID = -8192240240676284081L; }
   final private LookaheadSuccess jj_ls = new LookaheadSuccess();
   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;
   }


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

 /** Get the specific Token. */
   final 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;
   }

   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.List<int[]> jj_expentries = new java.util.ArrayList<int[]>();
   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];
       }
       jj_entries_loop: for (java.util.Iterator<?> it = jj_expentries.iterator(); it.hasNext();) {
         int[] oldentry = (int[])(it.next());
         if (oldentry.length == jj_expentry.length) {
           for (int i = 0; i < jj_expentry.length; i++) {
             if (oldentry[i] != jj_expentry[i]) {
               continue jj_entries_loop;
             }
           }
           jj_expentries.add(jj_expentry);
           break jj_entries_loop;
         }
       }
       if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
     }
   }

   /** Generate ParseException. */
   ParseException generateParseException() {
     jj_expentries.clear();
     boolean[] la1tokens = new boolean[21];
     if (jj_kind >= 0) {
       la1tokens[jj_kind] = true;
       jj_kind = -1;
     }
     for (int i = 0; i < 19; 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 < 21; i++) {
       if (la1tokens[i]) {
         jj_expentry = new int[1];
         jj_expentry[0] = i;
         jj_expentries.add(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] = jj_expentries.get(i);
     }
     return new ParseException(token, exptokseq, tokenImage);
   }

   /** Enable tracing. */
   final void enable_tracing() {
   }

   /** Disable tracing. */
   final void disable_tracing() {
   }

   private void jj_rescan_token() {
     jj_rescan = true;
     for (int i = 0; i < 2; i++) {
     try {
       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;
             case 1: jj_3_2(); break;
           }
         }
         p = p.next;
       } while (p != null);
       } catch(LookaheadSuccess ls) { }
     }
     jj_rescan = false;
   }

   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;
   }

 }
	/**
	* Copyright (c) 2005, 2010, Werner Keil, Ikayzo and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Werner Keil, Ikayzo and others - initial API and implementation
	*/
	/* Generated By:JavaCC: Do not edit this line. UnitParser.java */
	package org.eclipse.uomo.units.impl.format;

	import org.eclipse.uomo.units.AbstractUnit;
	import org.eclipse.uomo.units.impl.converter.LogConverter;
	import org.unitsofmeasurement.unit.Unit;

	/** */
	class UnitParser implements UnitParserConstants {

	private static class Exponent {
	final int pow;
	final int root;
	public Exponent (int pow, int root) {
	this.pow = pow;
	this.root = root;
	}
	}

	private SymbolMapImpl symbols;

	UnitParser (SymbolMapImpl symbols, java.io.Reader in) {
	this(in);
	this.symbols = symbols;
	}

	//
	// Parser productions
	//
	@SuppressWarnings("unused")
	Unit<?> parseUnit() throws ParseException {
	Unit<?> result;
	result = compoundExpr();
	jj_consume_token(0);
	{if (true) return result;}
	throw new Error("Missing return statement in function");
	}

	@SuppressWarnings("unused")
	Unit<?> compoundExpr() throws ParseException {
	Unit<?> result = AbstractUnit.ONE;
	result = addExpr();
	label_1:
	while (true) {
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case COLON:
	;
	break;
	default:
	jj_la1[0] = jj_gen;
	break label_1;
	}
	jj_consume_token(COLON);
	}
	{if (true) return result;}
	throw new Error("Missing return statement in function");
	}

	@SuppressWarnings("unused")
	Unit<?> addExpr() throws ParseException {
	Unit<?> result = AbstractUnit.ONE;
	Number n1 = null;
	Token sign1 = null;
	Number n2 = null;
	Token sign2 = null;
	if (jj_2_1(2147483647)) {
	n1 = numberExpr();
	sign1 = sign();
	} else {
	;
	}
	result = mulExpr();
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case PLUS:
	case MINUS:
	sign2 = sign();
	n2 = numberExpr();
	break;
	default:
	jj_la1[1] = jj_gen;
	;
	}
	if (n1 != null) {
	if (sign1.image.equals("-")) {
	result = result.multiply(-1);
	}
	result = result.add(n1.doubleValue());
	}
	if (n2 != null) {
	double offset = n2.doubleValue();
	if (sign2.image.equals("-")) {
	offset = -offset;
	}
	result = result.add(offset);
	}
	{if (true) return result;}
	throw new Error("Missing return statement in function");
	}

	Unit<?> mulExpr() throws ParseException {
	Unit<?> result = AbstractUnit.ONE;
	Unit<?> temp = AbstractUnit.ONE;
	result = exponentExpr();
	label_2:
	while (true) {
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case ASTERISK:
	case MIDDLE_DOT:
	case SOLIDUS:
	;
	break;
	default:
	jj_la1[2] = jj_gen;
	break label_2;
	}
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case ASTERISK:
	case MIDDLE_DOT:
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case ASTERISK:
	jj_consume_token(ASTERISK);
	break;
	case MIDDLE_DOT:
	jj_consume_token(MIDDLE_DOT);
	break;
	default:
	jj_la1[3] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	temp = exponentExpr();
	result=result.multiply(temp);
	break;
	case SOLIDUS:
	jj_consume_token(SOLIDUS);
	temp = exponentExpr();
	result=result.divide(temp);
	break;
	default:
	jj_la1[4] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	}
	//{if (true)
	return result;//}
	// throw new Error("Missing return statement in function");
	}

	@SuppressWarnings("unused")
	Unit<?> exponentExpr() throws ParseException {
	Unit<?> result = AbstractUnit.ONE;
	Exponent exponent = null;
	Token token = null;
	if (jj_2_2(2147483647)) {
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case INTEGER:
	token = jj_consume_token(INTEGER);
	break;
	case E:
	token = jj_consume_token(E);
	break;
	default:
	jj_la1[5] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	jj_consume_token(CARET);
	result = atomicExpr();
	double base;
	if (token.kind == INTEGER) {
	base = Integer.parseInt(token.image);
	} else {
	base = StrictMath.E;
	}
	{if (true) return result.transform(new LogConverter(base).inverse());}
	} else {
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case OPEN_PAREN:
	case INTEGER:
	case FLOATING_POINT:
	case UNIT_IDENTIFIER:
	result = atomicExpr();
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case CARET:
	case SUPERSCRIPT_INTEGER:
	exponent = exp();
	break;
	default:
	jj_la1[6] = jj_gen;
	;
	}
	if (exponent != null) {
	if (exponent.pow != 1) {
	result = result.pow(exponent.pow);
	}
	if (exponent.root != 1) {
	result = result.root(exponent.root);
	}
	}
	{if (true) return result;}
	// break;
	case LOG:
	case NAT_LOG:
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case LOG:
	jj_consume_token(LOG);
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case INTEGER:
	token = jj_consume_token(INTEGER);
	break;
	default:
	jj_la1[7] = jj_gen;
	;
	}
	break;
	case NAT_LOG:
	token = jj_consume_token(NAT_LOG);
	break;
	default:
	jj_la1[8] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	jj_consume_token(OPEN_PAREN);
	result = addExpr();
	jj_consume_token(CLOSE_PAREN);
	double base = 10;
	if (token != null) {
	if (token.kind == INTEGER) {
	base = Integer.parseInt(token.image);
	} else if (token.kind == NAT_LOG) {
	base = StrictMath.E;
	}
	}
	{if (true) return result.transform(new LogConverter(base));}
	default:
	jj_la1[9] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	}
	throw new Error("Missing return statement in function");
	}

	Unit<?> atomicExpr() throws ParseException {
	Unit<?> result = AbstractUnit.ONE;
	// Unit<?> temp = AbstractUnit.ONE;
	Number n = null;
	Token token = null;
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case INTEGER:
	case FLOATING_POINT:
	n = numberExpr();
	if (n instanceof Integer) {
	{if (true) return result.multiply(n.intValue());}
	} else {
	{if (true) return result.multiply(n.doubleValue());}
	}
	// break;
	case UNIT_IDENTIFIER:
	token = jj_consume_token(UNIT_IDENTIFIER);
	Unit<?> unit = symbols.getUnit(token.image);
	if (unit == null) {
	ParsePrefix prefix = symbols.getPrefix(token.image);
	if (prefix != null) {
	String prefixSymbol = symbols.getSymbol(prefix);
	unit = symbols.getUnit(token.image.substring(prefixSymbol.length()));
	if (unit != null) {
	{if (true) return unit.transform(prefix.getConverter());}
	}
	}
	{if (true) throw new ParseException();}
	} else {
	{if (true) return unit;}
	}
	// break;
	case OPEN_PAREN:
	jj_consume_token(OPEN_PAREN);
	result = addExpr();
	jj_consume_token(CLOSE_PAREN);
	{if (true) return result;}
	// break;
	default:
	jj_la1[10] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	// throw new Error("Missing return statement in function");
	}

	@SuppressWarnings("unused")
	Token sign() throws ParseException {
	Token result = null;
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case PLUS:
	result = jj_consume_token(PLUS);
	break;
	case MINUS:
	result = jj_consume_token(MINUS);
	break;
	default:
	jj_la1[11] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	{if (true) return result;}
	throw new Error("Missing return statement in function");
	}

	Number numberExpr() throws ParseException {
	Token token = null;
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case INTEGER:
	token = jj_consume_token(INTEGER);
	{if (true) return Long.valueOf(token.image);}
	// break;
	case FLOATING_POINT:
	token = jj_consume_token(FLOATING_POINT);
	{if (true) return Double.valueOf(token.image);}
	// break;
	default:
	jj_la1[12] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	// throw new Error("Missing return statement in function");
	}

	Exponent exp() throws ParseException {
	Token powSign = null;
	Token powToken = null;
	Token rootSign = null;
	Token rootToken = null;
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case CARET:
	jj_consume_token(CARET);
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case PLUS:
	case MINUS:
	case INTEGER:
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case PLUS:
	case MINUS:
	powSign = sign();
	break;
	default:
	jj_la1[13] = jj_gen;
	;
	}
	powToken = jj_consume_token(INTEGER);
	int pow = Integer.parseInt(powToken.image);
	if ((powSign != null) && powSign.image.equals("-")) {
	pow = -pow;
	}
	{if (true) return new Exponent(pow, 1);}
	case OPEN_PAREN:
	jj_consume_token(OPEN_PAREN);
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case PLUS:
	case MINUS:
	powSign = sign();
	break;
	default:
	jj_la1[14] = jj_gen;
	;
	}
	powToken = jj_consume_token(INTEGER);
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case SOLIDUS:
	jj_consume_token(SOLIDUS);
	switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
	case PLUS:
	case MINUS:
	rootSign = sign();
	break;
	default:
	jj_la1[15] = jj_gen;
	;
	}
	rootToken = jj_consume_token(INTEGER);
	break;
	default:
	jj_la1[16] = jj_gen;
	;
	}
	jj_consume_token(CLOSE_PAREN);
	pow = Integer.parseInt(powToken.image);
	if ((powSign != null) && powSign.image.equals("-")) {
	pow = -pow;
	}
	int root = 1;
	if (rootToken != null) {
	root = Integer.parseInt(rootToken.image);
	if ((rootSign != null) && rootSign.image.equals("-")) {
	root = -root;
	}
	}
	{if (true) return new Exponent(pow, root);}
	default:
	jj_la1[17] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	case SUPERSCRIPT_INTEGER:
	powToken = jj_consume_token(SUPERSCRIPT_INTEGER);
	int pow = 0;
	for (int i = 0; i < powToken.image.length(); i += 1) {
	pow *= 10;
	switch (powToken.image.charAt(i)) {
	case '\u00b9': pow += 1; break;
	case '\u00b2': pow += 2; break;
	case '\u00b3': pow += 3; break;
	case '\u2074': pow += 4; break;
	case '\u2075': pow += 5; break;
	case '\u2076': pow += 6; break;
	case '\u2077': pow += 7; break;
	case '\u2078': pow += 8; break;
	case '\u2079': pow += 9; break;
	}
	}
	{if (true) return new Exponent(pow, 1);}
	// break;
	default:
	jj_la1[18] = jj_gen;
	jj_consume_token(-1);
	throw new ParseException();
	}
	// throw new Error("Missing return statement in function");
	}

	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); }
	}

	private boolean jj_2_2(int xla) {
	jj_la = xla; jj_lastpos = jj_scanpos = token;
	try { return !jj_3_2(); }
	catch(LookaheadSuccess ls) { return true; }
	finally { jj_save(1, xla); }
	}

	private boolean jj_3R_3() {
	Token xsp;
	xsp = jj_scanpos;
	if (jj_3R_5()) {
	jj_scanpos = xsp;
	if (jj_3R_6()) return true;
	}
	return false;
	}

	private boolean jj_3R_6() {
	if (jj_scan_token(FLOATING_POINT)) return true;
	return false;
	}

	private boolean jj_3_2() {
	Token xsp;
	xsp = jj_scanpos;
	if (jj_scan_token(14)) {
	jj_scanpos = xsp;
	if (jj_scan_token(19)) return true;
	}
	if (jj_scan_token(CARET)) return true;
	return false;
	}

	private boolean jj_3_1() {
	if (jj_3R_3()) return true;
	if (jj_3R_4()) return true;
	return false;
	}

	private boolean jj_3R_4() {
	Token xsp;
	xsp = jj_scanpos;
	if (jj_scan_token(5)) {
	jj_scanpos = xsp;
	if (jj_scan_token(6)) return true;
	}
	return false;
	}

	private boolean jj_3R_5() {
	if (jj_scan_token(INTEGER)) return true;
	return false;
	}

	/** Generated Token Manager. */
	private UnitParserTokenManager token_source;
	private SimpleCharStream jj_input_stream;
	/** Current token. */
	private Token token;
	/** Next token. */
	private Token jj_nt;
	private int jj_ntk;
	private Token jj_scanpos, jj_lastpos;
	private int jj_la;
	private int jj_gen;
	final private int[] jj_la1 = new int[19];
	static private int[] jj_la1_0;
	static {
	jj_la1_init_0();
	}
	private static void jj_la1_init_0() {
	jj_la1_0 = new int[] {0x800,0x60,0x380,0x180,0x380,0x84000,0x8400,0x4000,0x60000,0x175000,0x115000,0x60,0x14000,0x60,0x60,0x60,0x200,0x5060,0x8400,};
	}
	final private JJCalls[] jj_2_rtns = new JJCalls[2];
	private boolean jj_rescan = false;
	private int jj_gc = 0;

	/** Constructor with InputStream. */
	UnitParser(java.io.InputStream stream) {
	this(stream, null);
	}
	/** Constructor with InputStream and supplied encoding */
	UnitParser(java.io.InputStream stream, String encoding) {
	try { jj_input_stream = new SimpleCharStream(stream, encoding, 1, 1); } catch(java.io.UnsupportedEncodingException e) { throw new RuntimeException(e); }
	token_source = new UnitParserTokenManager(jj_input_stream);
	token = new Token();
	jj_ntk = -1;
	jj_gen = 0;
	for (int i = 0; i < 19; i++) jj_la1[i] = -1;
	for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
	}

	/** Constructor. */
	UnitParser(java.io.Reader stream) {
	jj_input_stream = new SimpleCharStream(stream, 1, 1);
	token_source = new UnitParserTokenManager(jj_input_stream);
	token = new Token();
	jj_ntk = -1;
	jj_gen = 0;
	for (int i = 0; i < 19; i++) jj_la1[i] = -1;
	for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
	}

	/** Reinitialise. */
	// private 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 < 19; i++) jj_la1[i] = -1;
	// for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
	// }

	/** Constructor with generated Token Manager. */
	UnitParser(UnitParserTokenManager tm) {
	token_source = tm;
	token = new Token();
	jj_ntk = -1;
	jj_gen = 0;
	for (int i = 0; i < 19; i++) jj_la1[i] = -1;
	for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
	}

	/** Reinitialise. */
	// private void reInit(UnitParserTokenManager tm) {
	// token_source = tm;
	// token = new Token();
	// jj_ntk = -1;
	// jj_gen = 0;
	// for (int i = 0; i < 19; i++) jj_la1[i] = -1;
	// for (int i = 0; i < jj_2_rtns.length; i++) jj_2_rtns[i] = new JJCalls();
	// }

	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 {

	/**
	*
	*/
	private static final long serialVersionUID = -8192240240676284081L; }
	final private LookaheadSuccess jj_ls = new LookaheadSuccess();
	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;
	}


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

	/** Get the specific Token. */
	final 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;
	}

	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.List<int[]> jj_expentries = new java.util.ArrayList<int[]>();
	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];
	}
	jj_entries_loop: for (java.util.Iterator<?> it = jj_expentries.iterator(); it.hasNext();) {
	int[] oldentry = (int[])(it.next());
	if (oldentry.length == jj_expentry.length) {
	for (int i = 0; i < jj_expentry.length; i++) {
	if (oldentry[i] != jj_expentry[i]) {
	continue jj_entries_loop;
	}
	}
	jj_expentries.add(jj_expentry);
	break jj_entries_loop;
	}
	}
	if (pos != 0) jj_lasttokens[(jj_endpos = pos) - 1] = kind;
	}
	}

	/** Generate ParseException. */
	ParseException generateParseException() {
	jj_expentries.clear();
	boolean[] la1tokens = new boolean[21];
	if (jj_kind >= 0) {
	la1tokens[jj_kind] = true;
	jj_kind = -1;
	}
	for (int i = 0; i < 19; 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 < 21; i++) {
	if (la1tokens[i]) {
	jj_expentry = new int[1];
	jj_expentry[0] = i;
	jj_expentries.add(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] = jj_expentries.get(i);
	}
	return new ParseException(token, exptokseq, tokenImage);
	}

	/** Enable tracing. */
	final void enable_tracing() {
	}

	/** Disable tracing. */
	final void disable_tracing() {
	}

	private void jj_rescan_token() {
	jj_rescan = true;
	for (int i = 0; i < 2; i++) {
	try {
	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;
	case 1: jj_3_2(); break;
	}
	}
	p = p.next;
	} while (p != null);
	} catch(LookaheadSuccess ls) { }
	}
	jj_rescan = false;
	}

	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;
	}

	}