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115 lines
3.6 KiB
115 lines
3.6 KiB
// [The "BSD licence"]
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// Copyright (c) 2006-2007 Kay Roepke 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 "CharStream.h"
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#import "CharStreamState.h"
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#import "PtrBuffer.h"
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@interface ANTLRStringStream : NSObject < CharStream > {
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NSString *data;
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NSInteger n;
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NSInteger index;
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NSUInteger line;
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NSUInteger charPositionInLine;
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NSInteger markDepth;
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PtrBuffer *markers;
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NSInteger lastMarker;
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NSString *name;
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CharStreamState *charState;
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}
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+ newANTLRStringStream;
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+ newANTLRStringStream:(NSString *)aString;
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+ newANTLRStringStream:(char *)myData Count:(NSInteger)numBytes;
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- (id) init;
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// this initializer copies the string
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- (id) initWithString:(NSString *) theString;
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// This is the preferred constructor as no data is copied
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- (id) initWithStringNoCopy:(NSString *) theString;
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- (id) initWithData:(char *)myData Count:(NSInteger)numBytes;
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- (void) dealloc;
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- (id) copyWithZone:(NSZone *)aZone;
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// reset the stream's state, but keep the data to feed off
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- (void) reset;
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// consume one character from the stream
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- (void) consume;
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// look ahead i characters
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- (NSInteger) LA:(NSInteger) i;
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- (NSInteger) LT:(NSInteger) i;
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// total length of the input data
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- (NSInteger) size;
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// seek and rewind in the stream
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- (NSInteger) mark;
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- (void) rewind:(NSInteger) marker;
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- (void) rewind;
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- (void) release:(NSInteger) marker;
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- (void) seek:(NSInteger) index;
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// provide the streams data (e.g. for tokens using indices)
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- (NSString *) substring:(NSInteger)startIndex To:(NSInteger)stopIndex;
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- (NSString *) substringWithRange:(NSRange) theRange;
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- (NSUInteger) getLine;
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- (NSUInteger) getCharPositionInLine;
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- (void) setLine:(NSUInteger) aLine;
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- (void) setCharPositionInLine:(NSUInteger) pos;
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- (PtrBuffer *)getMarkers;
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- (void) setMarkers:(PtrBuffer *)aMarkerList;
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- (NSString *)getSourceName;
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- (NSString *)toString;
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// accessors to the raw data of this stream
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@property (retain) NSString *data;
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@property (assign) NSInteger index;
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@property (assign) NSInteger n;
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@property (assign) NSUInteger line;
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@property (assign) NSUInteger charPositionInLine;
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@property (assign) NSInteger markDepth;
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@property (retain) PtrBuffer *markers;
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@property (assign) NSInteger lastMarker;
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@property (retain) NSString *name;
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@property (retain) CharStreamState *charState;
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@end
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