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