| // |
| // ANTLRLookaheadStream.h |
| // ANTLR |
| // |
| // Created by Ian Michell on 26/04/2010. |
| // [The "BSD licence"] |
| // Copyright (c) 2010 Ian Michell 2010 Alan Condit |
| // All rights reserved. |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions |
| // are met: |
| // 1. Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // 2. Redistributions in binary form must reproduce the above copyright |
| // notice, this list of conditions and the following disclaimer in the |
| // documentation and/or other materials provided with the distribution. |
| // 3. The name of the author may not be used to endorse or promote products |
| // derived from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| // OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| // IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| // NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| // THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #import <Cocoa/Cocoa.h> |
| #import "ANTLRFastQueue.h" |
| |
| #define UNITIALIZED_EOF_ELEMENT_INDEX NSIntegerMax |
| |
| @interface ANTLRLookaheadStream : ANTLRFastQueue |
| { |
| NSInteger index; |
| NSInteger eofElementIndex; |
| NSInteger lastMarker; |
| NSInteger markDepth; |
| id prevElement; |
| id eof; |
| } |
| |
| @property (readwrite, retain, getter=getEof, setter=setEof:) id eof; |
| @property (assign) NSInteger index; |
| @property (assign, getter=getEofElementIndex, setter=setEofElementIndex:) NSInteger eofElementIndex; |
| @property (assign, getter=getLastMarker, setter=setLastMarker:) NSInteger lastMarker; |
| @property (assign, getter=getMarkDepth, setter=setMarkDepth:) NSInteger markDepth; |
| @property (retain) id prevElement; |
| |
| - (id) initWithEOF:(id) obj; |
| - (id) nextElement; |
| - (id) remove; |
| - (void) consume; |
| - (void) sync:(NSInteger) need; |
| - (void) fill:(NSInteger) n; |
| - (id) LT:(NSInteger) i; |
| - (id) LB:(NSInteger) i; |
| - (id) getCurrentSymbol; |
| - (NSInteger) mark; |
| - (void) release:(NSInteger) marker; |
| - (void) rewind:(NSInteger) marker; |
| - (void) rewind; |
| - (void) seek:(NSInteger) i; |
| - (id) getEof; |
| - (void) setEof:(id) anID; |
| - (NSInteger) getEofElementIndex; |
| - (void) setEofElementIndex:(NSInteger) anInt; |
| - (NSInteger) getLastMarker; |
| - (void) setLastMarker:(NSInteger) anInt; |
| - (NSInteger) getMarkDepth; |
| - (void) setMarkDepth:(NSInteger) anInt; |
| |
| @end |