1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// ANTLRLookaheadStream.h 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// ANTLR 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Created by Ian Michell on 26/04/2010. 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// [The "BSD licence"] 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Copyright (c) 2010 Ian Michell 2010 Alan Condit 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// All rights reserved. 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Redistribution and use in source and binary forms, with or without 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// modification, are permitted provided that the following conditions 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// are met: 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 1. Redistributions of source code must retain the above copyright 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 2. Redistributions in binary form must reproduce the above copyright 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer in the 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// documentation and/or other materials provided with the distribution. 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 3. The name of the author may not be used to endorse or promote products 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// derived from this software without specific prior written permission. 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import <Cocoa/Cocoa.h> 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRFastQueue.h" 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#define UNITIALIZED_EOF_ELEMENT_INDEX NSIntegerMax 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@interface ANTLRLookaheadStream : ANTLRFastQueue 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver{ 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver id eof; 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger eofElementIndex; 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger lastMarker; 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger markDepth; 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (readwrite, retain, getter=getEof, setter=setEof) id eof; 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=getEofElementIndex, setter=setEofElementIndex) NSInteger eofElementIndex; 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=getLastMarker, setter=setLastMarker) NSInteger lastMarker; 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=getMarkDepth, setter=setMarkDepth) NSInteger markDepth; 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) initWithEOF:(id) o; 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) nextElement; 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) consume; 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) sync:(NSInteger) need; 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) fill:(NSInteger) n; 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) LT:(NSInteger) i; 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) LB:(NSInteger) i; 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) currentSymbol; 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) getIndex; 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) mark; 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) release:(NSInteger) marker; 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) rewind:(NSInteger) marker; 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) rewind; 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) seek:(NSInteger) i; 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) getEof; 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setEof:(id) anID; 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) getEofElementIndex; 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setEofElementIndex:(NSInteger) anInt; 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) getLastMarker; 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setLastMarker:(NSInteger) anInt; 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) getMarkDepth; 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setMarkDepth:(NSInteger) anInt; 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@end 74