| // |
| // UnbufferedTokenStream.h |
| // ANTLR |
| // |
| // Created by Alan Condit on 7/12/10. |
| // [The "BSD licence"] |
| // Copyright (c) 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 <Foundation/Foundation.h> |
| #import "RuntimeException.h" |
| #import "TokenSource.h" |
| #import "LookaheadStream.h" |
| #import "Token.h" |
| |
| @interface UnbufferedTokenStream : LookaheadStream { |
| id<TokenSource> tokenSource; |
| NSInteger tokenIndex; // simple counter to set token index in tokens |
| NSInteger channel; |
| } |
| |
| @property (retain, getter=getTokenSource, setter=setTokenSource:) id<TokenSource> tokenSource; |
| @property (getter=getTokenIndex, setter=setTokenIndex:) NSInteger tokenIndex; |
| @property (getter=channel, setter=setChannel:) NSInteger channel; |
| |
| + (UnbufferedTokenStream *)newUnbufferedTokenStream:(id<TokenSource>)aTokenSource; |
| - (id) init; |
| - (id) initWithTokenSource:(id<TokenSource>)aTokenSource; |
| |
| - (id<Token>)nextElement; |
| - (BOOL)isEOF:(id<Token>) aToken; |
| - (id<TokenSource>)getTokenSource; |
| - (NSString *)toStringFromStart:(NSInteger)aStart ToEnd:(NSInteger)aStop; |
| - (NSString *)toStringFromToken:(id<Token>)aStart ToEnd:(id<Token>)aStop; |
| - (NSInteger)LA:(NSInteger)anIdx; |
| - (id<Token>)objectAtIndex:(NSInteger)anIdx; |
| - (NSString *)getSourceName; |
| |
| |
| @end |