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      1 // [The "BSD licence"]
      2 // Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit
      3 // All rights reserved.
      4 //
      5 // Redistribution and use in source and binary forms, with or without
      6 // modification, are permitted provided that the following conditions
      7 // are met:
      8 // 1. Redistributions of source code must retain the above copyright
      9 //    notice, this list of conditions and the following disclaimer.
     10 // 2. Redistributions in binary form must reproduce the above copyright
     11 //    notice, this list of conditions and the following disclaimer in the
     12 //    documentation and/or other materials provided with the distribution.
     13 // 3. The name of the author may not be used to endorse or promote products
     14 //    derived from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19 // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21 // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26 
     27 #import <Cocoa/Cocoa.h>
     28 #import "ANTLRRewriteRuleElementStream.h"
     29 
     30 
     31 @interface ANTLRRewriteRuleTokenStream : ANTLRRewriteRuleElementStream {
     32 
     33 }
     34 
     35 + (id) newANTLRRewriteRuleTokenStream:(id<ANTLRTreeAdaptor>)anAdaptor
     36                           description:(NSString *)elementDescription;
     37 /** Create a stream with one element */
     38 + (id) newANTLRRewriteRuleTokenStream:(id<ANTLRTreeAdaptor>)adaptor
     39                           description:(NSString *)elementDescription
     40                               element:(id) oneElement;
     41 /** Create a stream, but feed off an existing list */
     42 + (id) newANTLRRewriteRuleTokenStream:(id<ANTLRTreeAdaptor>)adaptor
     43                           description:(NSString *)elementDescription
     44                              elements:(NSMutableArray *)elements;
     45 
     46 - (id) init;
     47 - (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)anAdaptor
     48                description:(NSString *)aDescription;
     49 - (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)anAdaptor
     50                description:(NSString *)aDescription
     51                    element:(id)element;
     52 - (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)anAdaptor
     53                description:(NSString *)aDescription
     54                   elements:(NSMutableArray *)elements;
     55 
     56 /** Get next token from stream and make a node for it */
     57 - (id) nextNode;
     58 
     59 - (id) nextToken;
     60 
     61 /** Don't convert to a tree unless they explicitly call nextTree.
     62  *  This way we can do hetero tree nodes in rewrite.
     63  */
     64 - (id<ANTLRTree>) toTree:(id<ANTLRToken>)element;
     65 
     66 @end