protected <T> boolean match(
     int bid, SequenceMatcher.MatchedStates<T> matchedStates, boolean consume) {
   if (consume) {
     // Get element and return if it matched or not
     T node = matchedStates.get();
     // TODO: Fix type checking
     if (pattern.match(node)) {
       // If matched, need to add next states to the queue of states to be processed
       matchedStates.addStates(bid, next);
       return true;
     } else {
       return false;
     }
   } else {
     // Not consuming element - add this state back to queue of states to be processed
     // This state was not successfully matched
     matchedStates.addState(bid, this);
     return false;
   }
 }
Ejemplo n.º 2
0
 public final NodePattern Description(GraphRelation r) throws ParseException {
   Token name = null;
   boolean link = false;
   boolean isRoot = false;
   boolean isEmpty = false;
   Token attr = null;
   Token value = null;
   Map<String, String> attributes = Generics.newHashMap();
   NodePattern pat;
   jj_consume_token(23);
   switch ((jj_ntk == -1) ? jj_ntk_f() : jj_ntk) {
     case IDENTIFIER:
       {
         attr = jj_consume_token(IDENTIFIER);
         jj_consume_token(12);
         switch ((jj_ntk == -1) ? jj_ntk_f() : jj_ntk) {
           case IDENTIFIER:
             {
               value = jj_consume_token(IDENTIFIER);
               break;
             }
           case REGEX:
             {
               value = jj_consume_token(REGEX);
               break;
             }
           default:
             jj_la1[22] = jj_gen;
             jj_consume_token(-1);
             throw new ParseException();
         }
         if (attr != null && value != null) attributes.put(attr.image, value.image);
         label_6:
         while (true) {
           switch ((jj_ntk == -1) ? jj_ntk_f() : jj_ntk) {
             case 24:
               {;
                 break;
               }
             default:
               jj_la1[23] = jj_gen;
               break label_6;
           }
           jj_consume_token(24);
           attr = jj_consume_token(IDENTIFIER);
           jj_consume_token(12);
           switch ((jj_ntk == -1) ? jj_ntk_f() : jj_ntk) {
             case IDENTIFIER:
               {
                 value = jj_consume_token(IDENTIFIER);
                 break;
               }
             case REGEX:
               {
                 value = jj_consume_token(REGEX);
                 break;
               }
             default:
               jj_la1[24] = jj_gen;
               jj_consume_token(-1);
               throw new ParseException();
           }
           if (attr != null && value != null) attributes.put(attr.image, value.image);
         }
         jj_consume_token(25);
         break;
       }
     case ROOT:
       {
         attr = jj_consume_token(ROOT);
         jj_consume_token(25);
         isRoot = true;
         break;
       }
     case EMPTY:
       {
         attr = jj_consume_token(EMPTY);
         jj_consume_token(25);
         isEmpty = true;
         break;
       }
     case 25:
       {
         jj_consume_token(25);
         break;
       }
     default:
       jj_la1[25] = jj_gen;
       jj_consume_token(-1);
       throw new ParseException();
   }
   switch ((jj_ntk == -1) ? jj_ntk_f() : jj_ntk) {
     case 22:
       {
         jj_consume_token(22);
         link = true;
         name = jj_consume_token(IDENTIFIER);
         String nodeName = name.image;
         if (underNegation) {
           if (!knownVariables.contains(nodeName)) {
             {
               if (true)
                 throw new ParseException(
                     "Cannot add new variable names under negation.  Node '"
                         + nodeName
                         + "' not seen before");
             }
           }
         } else {
           knownVariables.add(nodeName);
         }
         break;
       }
     default:
       jj_la1[26] = jj_gen;
       ;
   }
   pat =
       new NodePattern(
           r, underNodeNegation, attributes, isRoot, isEmpty, name != null ? name.image : null);
   if (link) pat.makeLink();
   {
     if ("" != null) return pat;
   }
   throw new Error("Missing return statement in function");
 }