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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 "UniqueString.h"
#include <Foundation/NSSet.h>
#include <Foundation/NSCoder.h>
#include <Foundation/NSInvocation.h>
#include <Foundation/NSEnumerator.h>
@implementation UniqueString
NSMutableSet *TheUniqueStringsSet;
+ (void)initialize
{
if (!TheUniqueStringsSet) {
#ifdef GNUSTEP
TheUniqueStringsSet = [[NSMutableSet alloc] init];
#else
TheUniqueStringsSet = [[NSMutableSet allocWithZone:NSCreateZone(0, NSPageSize(), NO)] init];
#endif
}
}
+ (UniqueString *)stringWithString:(NSString *)s;
{
UniqueString *uniquestring = [TheUniqueStringsSet member:s];
if (!uniquestring) {
uniquestring = (id)s;//[[UniqueString allocWithZone:[TheUniqueStringsSet zone]] initWithString:s];
[TheUniqueStringsSet addObject:uniquestring];
//[uniquestring autorelease];
}
return uniquestring;
}
- (id)initWithString:(NSString *)s
{
//#ifndef GNUSTEP
self = [super init];
//#endif
if (self) {
string = [s copyWithZone:[self zone]];
}
return self;
}
// primitive methods
//- (unsigned int)length;
//{
// return [string length];
//}
#ifdef GNUSTEP
// GNUstep expects cStringLength to be defined
//- (unsigned int)cStringLength
//{
// return [string cStringLength];
//}
#endif
//- (unichar)characterAtIndex:(unsigned)index;
//{
// return [string characterAtIndex:index];
//}
int C1, C2, C3, C4;
+ (void)printCs {
NSLog(@"%d %d %d %d", C1, C2, C3, C4);
}
- (NSString *)description
{
return [string description];
}
// NSObject protocol
- (BOOL)isEqual:(id)object;
{
C1++;
if (self == object) return YES;
C2++;
if ([object class] == [UniqueString class]) return NO;
C3++;
return [string isEqual:object];
}
- (unsigned)hash;
{
return [string hash];
}
// UniqueStrings are unique and are never released
- (id)retain { return self; }
- (oneway void)release { }
- (id)autorelease { return self; }
- (NSUInteger)retainCount { return 1; }
- (id)copyWithZone:(NSZone *)z { C4++; return self; }
// NSCoding Protocol
- (Class)classForCoder
{
return [UniqueString class];
}
- (void)encodeWithCoder:(NSCoder *)coder
{
[coder encodeObject:string];
}
- (id)initWithCoder:(NSCoder *)coder
{
NSString *s;
UniqueString *uniquestring;
s = [coder decodeObject];
uniquestring = [UniqueString stringWithString:s];
[super release];
return uniquestring;
}
//
// Forwards other messages to uniqued object
//
- (BOOL)respondsToSelector:(SEL)aSelector
{
return [string respondsToSelector:aSelector];
}
- (void)forwardInvocation:(NSInvocation *)invocation
{
[invocation invokeWithTarget:string];
}
- (NSMethodSignature *)methodSignatureForSelector:(SEL)sel
{
return [string methodSignatureForSelector:sel];
}
@end
@implementation NSString (UnifyStrings)
- (id)unifyStrings
{
//NSLog(@"Str %@", self);
return U(self);
}
@end
@implementation NSArray (UnifyStrings)
- (id)unifyStrings
{
NSMutableArray *unified;
int i;
int count;
//NSLog(@"Arr");
count = [self count];
unified = [NSMutableArray arrayWithCapacity:count];
for (i = 0; i < count; i++) {
// NSLog(@" %d %@", i, [self objectAtIndex:i]);
[unified addObject:[[self objectAtIndex:i] unifyStrings]];
}
return unified;
}
@end
@implementation NSDictionary (UnifyStrings)
- (id)unifyStrings
{
NSMutableDictionary *unified;
NSEnumerator *keyEnum;
id key;
id value;
// NSLog(@"Dic");
unified = [NSMutableDictionary dictionaryWithCapacity:[self count]];
keyEnum = [self keyEnumerator];
while ((key = [keyEnum nextObject]) != nil) {
value = [self objectForKey:key];
// NSLog(@" %@ -> %@", key, value);
[unified setObject:[value unifyStrings] forKey:[key unifyStrings]];
}
return unified;
}
@end
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