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This commit is contained in:
Andrew McCallum
parent
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/* Code for interface of Objective-C EltNode objects
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Copyright (C) 1993,1994 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@cs.rochester.edu>
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Dept. of Computer Science, U. of Rochester, Rochester, NY 14627
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This file is part of the GNU Objective-C library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* This file gets included in all the ...EltNode.h files
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Doing this silly #include stuff is a poor substitute for multiple
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inheritance. sigh.
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Pattern:
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@interface FooEltNode : FooNode
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#include <objects/EltNode-h>
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@end
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*/
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<EltHolding>
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{
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elt _element;
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int (*_elt_comparison_function)(elt,elt);
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}
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- (int(*)(elt,elt)) comparisonFunction;
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@ -1,110 +0,0 @@
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/* Code for implementation for Objective-C EltNode objects
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Copyright (C) 1993, 1995, 1996 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@cs.rochester.edu>
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Dept. of Computer Science, U. of Rochester, Rochester, NY 14627
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This file is part of the GNU Objective-C library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* This file gets included in all the ...EltNode.m files.
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Doing this silly #include stuff is a poor substitute for multiple
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inheritance. sigh.
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Pattern:
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@implementation FooEltNode : FooNode
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#include <objects/EltNode-m>
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@end
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*/
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#include <objects/eltfuncs.h>
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#include <objects/NSString.h>
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- initElement: (elt)anElement
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encoding: (const char *)eltEncoding
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{
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[super init];
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_element = anElement;
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_elt_comparison_function = elt_get_comparison_function(eltEncoding);
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return self;
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}
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/* Archiving must mimic the above designated initializer */
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- (void) encodeWithCoder: aCoder
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{
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const char *encoding;
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[super encodeWithCoder:aCoder];
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encoding = elt_get_encoding(_elt_comparison_function);
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[aCoder encodeValueOfCType:@encode(char*) at:&encoding
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withName:@"EltNode Content Type Encoding"];
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[aCoder encodeValueOfCType:encoding
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at:elt_get_ptr_to_member(encoding, &_element)
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withName:@"EltNode Content Element"];
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}
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- (elt*) _elementDataPtr
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{
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return &_element;
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}
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- (int(**)(elt,elt)) _eltComparisonFunctionPtr
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{
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return &_elt_comparison_function;
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}
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- initWithCoder: aCoder
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{
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char *encoding;
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[super initWithCoder:aCoder];
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[aCoder decodeValueOfCType:@encode(char*)
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at:&encoding
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withName:NULL];
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*[self _eltComparisonFunctionPtr] = elt_get_comparison_function(encoding);
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[aCoder decodeValueOfCType:encoding
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at:[self _elementDataPtr]
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withName:NULL];
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return self;
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}
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- (int(*)(elt,elt)) comparisonFunction
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{
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return _elt_comparison_function;
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}
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- (elt) elementData
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{
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return _element;
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}
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- (int) compare: anotherObject
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{
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/* perhaps we should do more checking first */
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return _elt_comparison_function(_element, [anotherObject elementData]);
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}
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- printForDebugger
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{
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elt_fprintf_elt(stdout,
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elt_get_encoding(_elt_comparison_function),
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_element);
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printf("\n");
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return self;
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}
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@ -1,67 +0,0 @@
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/* Interface for Objective-C EltNodeCollector collection object
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Copyright (C) 1993,1994 Free Software Foundation, Inc.
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Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
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Date: May 1993
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This file is part of the GNU Objective C Class Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* EltNodeCollector */
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#ifndef __EltNodeCollector_h_INCLUDE_GNU
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#define __EltNodeCollector_h_INCLUDE_GNU
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#include <gnustep/base/preface.h>
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#include <gnustep/base/IndexedCollection.h>
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/* Protocol for a node that also holds an element */
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@protocol EltHolding
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- initElement: (elt)anElement
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encoding: (const char *)eltEncoding;
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- (elt) elementData;
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@end
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/* It's is a bit unfortunate that we insist that the underlying
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collector conform to IndexedCollecting. */
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@interface EltNodeCollector : IndexedCollection
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{
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@private
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id _contents_collector;
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id _node_class;
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int (*_comparison_function)(elt,elt);
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}
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- initWithType: (const char *)contentEncoding
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nodeCollector: aNodeCollector
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nodeClass: aNodeClass;
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// The class of the autocreated link objects, must conform to <EltHolding>;
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- eltNodeClass;
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// Getting the underlying node collector that holds the contents;
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- contentsCollector;
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// Finding the node that contains anElement;
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- (id <EltHolding>) eltNodeWithElement: (elt)anElement;
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@end
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#endif /* __EltNodeCollector_h_INCLUDE_GNU */
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