| // [The "BSD licence"] |
| // Copyright (c) 2006-2007 Kay Roepke 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 "ANTLRTokenStream.h" |
| #import "ANTLRTokenSource.h" |
| #import "ANTLRBitSet.h" |
| #import "ANTLRCommonToken.h" |
| #import "AMutableArray.h" |
| |
| @interface ANTLRBufferedTokenStream : NSObject <ANTLRTokenStream> |
| { |
| __strong id<ANTLRTokenSource> tokenSource; |
| |
| /** Record every single token pulled from the source so we can reproduce |
| * chunks of it later. The buffer in LookaheadStream overlaps sometimes |
| * as its moving window moves through the input. This list captures |
| * everything so we can access complete input text. |
| */ |
| __strong AMutableArray *tokens; |
| |
| /** Track the last mark() call result value for use in rewind(). */ |
| NSInteger lastMarker; |
| |
| /** The index into the tokens list of the current token (next token |
| * to consume). tokens[index] should be LT(1). index=-1 indicates need |
| * to initialize with first token. The ctor doesn't get a token. |
| * First call to LT(1) or whatever gets the first token and sets index=0; |
| */ |
| NSInteger index; |
| |
| NSInteger range; // how deep have we gone? |
| |
| } |
| @property (retain, getter=getTokenSource,setter=setTokenSource:) id<ANTLRTokenSource> tokenSource; |
| @property (retain, getter=getTokens,setter=setTokens:) AMutableArray *tokens; |
| @property (assign, getter=getLastMarker,setter=setLastMarker:) NSInteger lastMarker; |
| @property (assign) NSInteger index; |
| @property (assign, getter=getRange,setter=setRange:) NSInteger range; |
| |
| + (ANTLRBufferedTokenStream *) newANTLRBufferedTokenStream; |
| + (ANTLRBufferedTokenStream *) newANTLRBufferedTokenStreamWith:(id<ANTLRTokenSource>)aSource; |
| - (id) initWithTokenSource:(id<ANTLRTokenSource>)aSource; |
| - (void)dealloc; |
| - (id) copyWithZone:(NSZone *)aZone; |
| - (NSUInteger)charPositionInLine; |
| - (NSUInteger)line; |
| - (NSInteger) getRange; |
| - (void) setRange:(NSInteger)anInt; |
| - (NSInteger) mark; |
| - (void) release:(NSInteger) marker; |
| - (void) rewind:(NSInteger) marker; |
| - (void) rewind; |
| - (void) reset; |
| - (void) seek:(NSInteger) anIndex; |
| - (NSInteger) size; |
| - (void) consume; |
| - (void) sync:(NSInteger) i; |
| - (void) fetch:(NSInteger) n; |
| - (id<ANTLRToken>) getToken:(NSInteger) i; |
| - (AMutableArray *)getFrom:(NSInteger)startIndex To:(NSInteger) stopIndex; |
| - (NSInteger) LA:(NSInteger)i; |
| - (id<ANTLRToken>) LB:(NSInteger) k; |
| - (id<ANTLRToken>) LT:(NSInteger) k; |
| - (void) setup; |
| - (id<ANTLRTokenSource>) getTokenSource; |
| - (void) setTokenSource:(id<ANTLRTokenSource>) aTokenSource; |
| - (AMutableArray *)getTokens; |
| - (NSString *) getSourceName; |
| - (AMutableArray *)getTokensFrom:(NSInteger)startIndex To:(NSInteger)stopIndex; |
| - (AMutableArray *)getTokensFrom:(NSInteger)startIndex To:(NSInteger)stopIndex With:(ANTLRBitSet *)types; |
| - (AMutableArray *)getTokensFrom:(NSInteger)startIndex To:(NSInteger)stopIndex WithList:(AMutableArray *)types; |
| - (AMutableArray *)getTokensFrom:(NSInteger)startIndex To:(NSInteger)stopIndex WithType:(NSInteger)ttype; |
| - (NSString *) toString; |
| - (NSString *) toStringFromStart:(NSInteger)startIndex ToEnd:(NSInteger)stopIndex; |
| - (NSString *) toStringFromToken:(id<ANTLRToken>)startIndex ToToken:(id<ANTLRToken>)stopIndex; |
| - (void) fill; |
| |
| @end |