1// [The "BSD licence"]
2// Copyright (c) 2006-2007 Kay Roepke
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 "ANTLRCharStream.h"
29
30// encapsulates a stream's state, so we can put it into an NSArray.
31// No magic is happening here.
32
33@interface ANTLRCharStreamState : NSObject <ANTLRCharStream>
34{
35	NSUInteger index;
36	NSUInteger line;
37	NSUInteger charPositionInLine;
38}
39
40+ newANTLRCharStreamState;
41
42- (id) init;
43
44- (NSUInteger) getIndex;
45- (void) setIndex: (NSUInteger) anIndex;
46
47- (NSUInteger) getLine;
48- (void) setLine: (NSUInteger) aLine;
49
50- (NSUInteger) getCharPositionInLine;
51- (void) setCharPositionInLine: (NSUInteger) aCharPositionInLine;
52
53
54@property (assign) NSUInteger index;
55@property (assign) NSUInteger line;
56@property (assign) NSUInteger charPositionInLine;
57
58@end
59