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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 "TranslationTable.h"
/*
* Very dirty implementation.
* should be changed to use a hash table to make the value->index translation.
* and a more normal array to the index->value translation.
*/
@implementation TranslationTable
- (id)init
{
table = [[NSMutableArray array] retain];
map = [[NSMutableDictionary dictionary] retain];
return self;
}
- (void)dealloc
{
[table release];
[map release];
[super dealloc];
}
+ (TranslationTable *)translationTable
{
return [[[self alloc] init] autorelease];
}
/*
* Querying
*/
- (NSUInteger) count
{
return [table count];
}
- (NSUInteger)indexOfValue:(id)value
{
id obj = [map objectForKey:value];
if (obj)
return [obj intValue];
else
return NSNotFound;
}
- (id)valueAtIndex:(NSUInteger)index
{
return [table objectAtIndex:index];
}
/*
* Adding Elements
*/
- (NSUInteger)addValue:(id)value
{
NSUInteger index;
index = [self indexOfValue:value];
if (index == NSNotFound) {
[table addObject:value];
index = [table count] - 1;
[map setObject: [NSNumber numberWithInt:index] forKey:value];
}
return index;
}
// NSCoding Protocol
- (void)encodeWithCoder:(NSCoder *)coder
{
// [super encodeWithCoder:coder];
[coder encodeObject:table];
[coder encodeObject:map];
}
- (id)initWithCoder:(NSCoder *)coder
{
self = [super init];//WithCoder:coder];
table = [[coder decodeObject] retain];
map = [[coder decodeObject] retain];
return self;
}
@end
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