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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