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63 lines
2.6 KiB
63 lines
2.6 KiB
4 months ago
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//
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// UnbufferedTokenStream.h
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// ANTLR
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//
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// Created by Alan Condit on 7/12/10.
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// [The "BSD licence"]
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// Copyright (c) 2010 Alan Condit
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// 1. Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// 3. The name of the author may not be used to endorse or promote products
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// derived from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#import <Foundation/Foundation.h>
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#import "RuntimeException.h"
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#import "TokenSource.h"
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#import "LookaheadStream.h"
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#import "Token.h"
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@interface UnbufferedTokenStream : LookaheadStream {
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id<TokenSource> tokenSource;
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NSInteger tokenIndex; // simple counter to set token index in tokens
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NSInteger channel;
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}
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@property (retain, getter=getTokenSource, setter=setTokenSource:) id<TokenSource> tokenSource;
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@property (getter=getTokenIndex, setter=setTokenIndex:) NSInteger tokenIndex;
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@property (getter=channel, setter=setChannel:) NSInteger channel;
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+ (UnbufferedTokenStream *)newUnbufferedTokenStream:(id<TokenSource>)aTokenSource;
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- (id) init;
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- (id) initWithTokenSource:(id<TokenSource>)aTokenSource;
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- (id<Token>)nextElement;
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- (BOOL)isEOF:(id<Token>) aToken;
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- (id<TokenSource>)getTokenSource;
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- (NSString *)toStringFromStart:(NSInteger)aStart ToEnd:(NSInteger)aStop;
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- (NSString *)toStringFromToken:(id<Token>)aStart ToEnd:(id<Token>)aStop;
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- (NSInteger)LA:(NSInteger)anIdx;
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- (id<Token>)objectAtIndex:(NSInteger)anIdx;
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- (NSString *)getSourceName;
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@end
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