1324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// [The "BSD licence"] 2324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Copyright (c) 2006-2007 Kay Roepke 2010 Alan Condit 3324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// All rights reserved. 4324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 5324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// Redistribution and use in source and binary forms, with or without 6324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// modification, are permitted provided that the following conditions 7324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// are met: 8324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 1. Redistributions of source code must retain the above copyright 9324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer. 10324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 2. Redistributions in binary form must reproduce the above copyright 11324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// notice, this list of conditions and the following disclaimer in the 12324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// documentation and/or other materials provided with the distribution. 13324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 3. The name of the author may not be used to endorse or promote products 14324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// derived from this software without specific prior written permission. 15324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// 16324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 27324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import <Cocoa/Cocoa.h> 28324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver#import "ANTLRTreeAdaptor.h" 29324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 30324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruvertypedef union { 31324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver id single; 32324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSMutableArray *multiple; 33324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} Elements; 34324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 35324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver// TODO: this should be separated into stream and enumerator classes 36324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@interface ANTLRRewriteRuleElementStream : NSObject { 37324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSInteger cursor; 38324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BOOL dirty; ///< indicates whether the stream should return copies of its elements, set to true after a call to -reset 39324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver BOOL isSingleElement; 40324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver Elements elements; 41324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 42324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver NSString *elementDescription; 43324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver id<ANTLRTreeAdaptor> treeAdaptor; 44324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver} 45324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 46324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=GetCursor, setter=SetCursor:) NSInteger cursor; 47324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=Getdirty, setter=Setdirty:) BOOL dirty; 48324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=GetIsSingleElement, setter=SetIsSingleElement:) BOOL isSingleElement; 49324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=GetElement, setter=SetElement:) Elements elements; 50324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (assign, getter=GetElementDescription, setter=SetElementDescription:) NSString *elementDescription; 51324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@property (retain, getter=GetTreeAdaptor, setter=SetTreeAdaptor:) id<ANTLRTreeAdaptor> treeAdaptor; 52324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 53324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRewriteRuleElementStream*) newANTLRRewriteRuleElementStream:(id<ANTLRTreeAdaptor>)aTreeAdaptor 54324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver description:(NSString *)anElementDescription; 55324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRewriteRuleElementStream*) newANTLRRewriteRuleElementStream:(id<ANTLRTreeAdaptor>)aTreeAdaptor 56324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver description:(NSString *)anElementDescription 57324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver element:(id)anElement; 58324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver+ (ANTLRRewriteRuleElementStream*) newANTLRRewriteRuleElementStream:(id<ANTLRTreeAdaptor>)aTreeAdaptor 59324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver description:(NSString *)anElementDescription 60324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver elements:(NSArray *)theElements; 61324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 62324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription; 63324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription element:(id)anElement; 64324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) initWithTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor description:(NSString *)anElementDescription elements:(NSArray *)theElements; 65324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 66324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void)reset; 67324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 68324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id<ANTLRTreeAdaptor>) getTreeAdaptor; 69324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setTreeAdaptor:(id<ANTLRTreeAdaptor>)aTreeAdaptor; 70324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 71324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) addElement:(id)anElement; 72324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSInteger) size; 73324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 74324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (BOOL) hasNext; 75324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id<ANTLRTree>) nextTree; 76324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id<ANTLRTree>) _next; // internal: TODO: redesign if necessary. maybe delegate 77324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 78324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) copyElement:(id)element; 79324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (id) toTree:(id)element; 80324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 81324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (NSString *) getDescription; 82324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver- (void) setDescription:(NSString *)description; 83324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 84324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver@end 85324c4644fee44b9898524c09511bd33c3f12e2dfBen Gruver 86