ANTLRUnbufferedTokenStream.h revision 324c4644fee44b9898524c09511bd33c3f12e2df 
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