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/*
Copyright (c) 1998, 1999, 2000, 2001, 2003, 2004 Benhur Stein
This file is part of Paj.
Paj is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
Paj is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
for more details.
You should have received a copy of the GNU Lesser General Public License
along with Paj; if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*/
#include "MultiEnumerator.h"
#ifdef GNUSTEP
@implementation NSEnumerator (Additions)
- (NSArray *)allObjects
{
NSMutableArray *a = [NSMutableArray array];
id obj;
while ((obj = [self nextObject]) != nil) {
[a addObject:obj];
}
return a;
}
@end
#endif
@implementation MultiEnumerator
+ (MultiEnumerator *)enumeratorWithEnumerator:(NSEnumerator *)en
{
return [[[self alloc] initWithEnumeratorArray:[NSArray arrayWithObject:en]] autorelease];
}
+ (MultiEnumerator *)enumeratorWithEnumeratorArray:(NSArray *)array
{
return [[[self alloc] initWithEnumeratorArray:array] autorelease];
}
+ (MultiEnumerator *)enumerator
{
return [[[self alloc] initWithEnumeratorArray:[NSMutableArray array]] autorelease];
}
- (id)initWithEnumeratorArray:(NSArray *)array;
{
self = [super init];
if (self != nil) {
origEnums = [array mutableCopy];
}
return self;
}
- (void)dealloc
{
[origEnums release];
[super dealloc];
}
- (void)addEnumerator:(NSEnumerator *)enumerator
{
if (enumerator != nil) {
[origEnums addObject:enumerator];
}
}
- (id)nextObject;
{
id obj = nil;
while (obj == nil) {
if ([origEnums count] == 0)
return nil;
obj = [[origEnums objectAtIndex:0] nextObject];
if (obj)
return obj;
[origEnums removeObjectAtIndex:0];
}
return nil; // shuts up compiler
}
@end
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