| // [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 "ANTLRCharStream.h" |
| #import "ANTLRCharStreamState.h" |
| #import "ANTLRPtrBuffer.h" |
| |
| @interface ANTLRStringStream : NSObject < ANTLRCharStream > { |
| NSString *data; |
| NSInteger n; |
| NSInteger p; |
| NSInteger line; |
| NSInteger charPositionInLine; |
| NSInteger markDepth; |
| ANTLRPtrBuffer *markers; |
| NSInteger lastMarker; |
| NSString *name; |
| ANTLRCharStreamState *charState; |
| } |
| |
| @property (retain, getter=getData,setter=setData:) NSString *data; |
| @property (getter=getP,setter=setP:) NSInteger p; |
| @property (getter=getN,setter=setN:) NSInteger n; |
| @property (getter=getLine,setter=setLine:) NSInteger line; |
| @property (getter=getCharPositionInLine,setter=setCharPositionInLine:) NSInteger charPositionInLine; |
| @property (getter=getMarkDepth,setter=setMarkDepth:) NSInteger markDepth; |
| @property (retain, getter=getMarkers, setter=setMarkers:) ANTLRPtrBuffer *markers; |
| @property (getter=getLastMarker,setter=setLastMarker:) NSInteger lastMarker; |
| @property (retain, getter=getSourceName, setter=setSourceName:) NSString *name; |
| @property (retain, getter=getCharState, setter=setCharState:) ANTLRCharStreamState *charState; |
| |
| + newANTLRStringStream; |
| |
| + newANTLRStringStream:(NSString *)aString; |
| |
| + newANTLRStringStream:(char *)myData Count:(NSInteger)numBytes; |
| |
| - (id) init; |
| |
| // this initializer copies the string |
| - (id) initWithString:(NSString *) theString; |
| |
| // This is the preferred constructor as no data is copied |
| - (id) initWithStringNoCopy:(NSString *) theString; |
| |
| - (id) initWithData:(char *)myData Count:(NSInteger)numBytes; |
| |
| - (void) dealloc; |
| |
| - (id) copyWithZone:(NSZone *)aZone; |
| |
| // reset the stream's state, but keep the data to feed off |
| - (void) reset; |
| // consume one character from the stream |
| - (void) consume; |
| |
| // look ahead i characters |
| - (NSInteger) LA:(NSInteger) i; |
| - (NSInteger) LT:(NSInteger) i; |
| |
| // returns the position of the current input symbol |
| - (NSInteger) getIndex; |
| // total length of the input data |
| - (NSInteger) size; |
| |
| // seek and rewind in the stream |
| - (NSInteger) mark; |
| - (void) rewind:(NSInteger) marker; |
| - (void) rewind; |
| - (void) release:(NSInteger) marker; |
| - (void) seek:(NSInteger) index; |
| |
| // provide the streams data (e.g. for tokens using indices) |
| - (NSString *) substring:(NSInteger)startIndex To:(NSInteger)stopIndex; |
| - (NSString *) substringWithRange:(NSRange) theRange; |
| |
| // used for tracking the current position in the input stream |
| - (NSInteger) getLine; |
| - (void) setLine:(NSInteger) theLine; |
| - (NSInteger) getCharPositionInLine; |
| - (void) setCharPositionInLine:(NSInteger) thePos; |
| |
| - (NSInteger) getN; |
| - (void) setN:(NSInteger)num; |
| |
| - (NSInteger) getP; |
| - (void) setP:(NSInteger)num; |
| |
| - (ANTLRPtrBuffer *)getMarkers; |
| - (void) setMarkers:(ANTLRPtrBuffer *)aMarkerList; |
| |
| - (NSString *)getSourceName; |
| |
| - (NSString *)toString; |
| |
| // accessors to the raw data of this stream |
| - (NSString *) getData; |
| - (void) setData: (NSString *) aData; |
| |
| |
| @end |