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      1 //
      2 //  ANTLRUnbufferedTokenStream.h
      3 //  ANTLR
      4 //
      5 //  Created by Alan Condit on 7/12/10.
      6 // [The "BSD licence"]
      7 // Copyright (c) 2010 Alan Condit
      8 // All rights reserved.
      9 //
     10 // Redistribution and use in source and binary forms, with or without
     11 // modification, are permitted provided that the following conditions
     12 // are met:
     13 // 1. Redistributions of source code must retain the above copyright
     14 //    notice, this list of conditions and the following disclaimer.
     15 // 2. Redistributions in binary form must reproduce the above copyright
     16 //    notice, this list of conditions and the following disclaimer in the
     17 //    documentation and/or other materials provided with the distribution.
     18 // 3. The name of the author may not be used to endorse or promote products
     19 //    derived from this software without specific prior written permission.
     20 //
     21 // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     22 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     23 // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     24 // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     25 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     26 // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     30 // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31 
     32 #import <Cocoa/Cocoa.h>
     33 #import "ANTLRRuntimeException.h"
     34 #import "ANTLRTokenSource.h"
     35 #import "ANTLRLookaheadStream.h"
     36 #import "ANTLRToken.h"
     37 
     38 @interface ANTLRUnbufferedTokenStream : ANTLRLookaheadStream {
     39 	id<ANTLRTokenSource> tokenSource;
     40     NSInteger tokenIndex; // simple counter to set token index in tokens
     41     NSInteger channel;
     42 }
     43 
     44 @property (retain, getter=getTokenSource, setter=setTokenSource:) id<ANTLRTokenSource> tokenSource;
     45 @property (getter=getTokenIndex, setter=setTokenIndex) NSInteger tokenIndex;
     46 @property (getter=getChannel, setter=setChannel:) NSInteger channel;
     47 
     48 + (ANTLRUnbufferedTokenStream *)newANTLRUnbufferedTokenStream:(id<ANTLRTokenSource>)aTokenSource;
     49 - (id) init;
     50 - (id) initWithTokenSource:(id<ANTLRTokenSource>)aTokenSource;
     51 
     52 - (id<ANTLRToken>)nextElement;
     53 - (BOOL)isEOF:(id<ANTLRToken>) aToken;
     54 - (id<ANTLRTokenSource>)getTokenSource;
     55 - (NSString *)toStringFromStart:(NSInteger)aStart ToEnd:(NSInteger)aStop;
     56 - (NSString *)toStringFromToken:(id<ANTLRToken>)aStart ToEnd:(id<ANTLRToken>)aStop;
     57 - (NSInteger)LA:(NSInteger)anIdx;
     58 - (id<ANTLRToken>)objectAtIndex:(NSInteger)anIdx;
     59 - (NSString *)getSourceName;
     60 
     61 
     62 @end
     63