mirror of
https://github.com/gnustep/libs-base.git
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acaae6854e
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@3209 72102866-910b-0410-8b05-ffd578937521
1006 lines
22 KiB
Objective-C
1006 lines
22 KiB
Objective-C
/* Implementation for GNUStep of NSStrings with C-string backing
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Copyright (C) 1993,1994, 1996, 1997, 1998 Free Software Foundation, Inc.
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Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
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Date: March 1995
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Optimised by: Richard frith-Macdoanld <richard@brainstorm.co.uk>
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Date: October 1998
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This file is part of the GNUstep Base 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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#include <config.h>
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#include <gnustep/base/preface.h>
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#include <Foundation/NSString.h>
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#include <Foundation/NSCoder.h>
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#include <gnustep/base/NSGString.h>
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#include <gnustep/base/NSGCString.h>
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#include <gnustep/base/IndexedCollection.h>
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#include <gnustep/base/IndexedCollectionPrivate.h>
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#include <Foundation/NSValue.h>
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#include <gnustep/base/behavior.h>
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#include <gnustep/base/Unicode.h>
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#include <gnustep/base/fast.x>
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static SEL csInitSel = @selector(initWithCStringNoCopy:length:fromZone:);
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static SEL msInitSel = @selector(initWithCapacity:);
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static IMP csInitImp; /* designated initialiser for cString */
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static IMP msInitImp; /* designated initialiser for mutable */
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@implementation NSGCString
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+ (void) initialize
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{
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static int done = 0;
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if (!done)
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{
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done = 1;
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csInitImp = [NSGCString instanceMethodForSelector: csInitSel];
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msInitImp = [NSGMutableCString instanceMethodForSelector: msInitSel];
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}
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}
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+ allocWithZone: (NSZone*)z
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{
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return NSAllocateObject (self, 0, z);
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}
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+ alloc
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{
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return NSAllocateObject (self, 0, NSDefaultMallocZone());
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}
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- (void)dealloc
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{
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if (_zone)
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{
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NSZoneFree(_zone, (void*)_contents_chars);
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_zone = 0;
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}
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[super dealloc];
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}
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- (unsigned) hash
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{
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if (_hash == 0)
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{
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_hash = _fastImp._NSString_hash(self, @selector(hash));
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}
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return _hash;
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}
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/*
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* This is the GNUstep designated initializer for this class.
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* NB. this does NOT change the '_hash' instance variable, so the copy
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* methods can safely allocate a new object, copy the _hash into place,
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* and then invoke this method to complete the copy operation.
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*/
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- (id) initWithCStringNoCopy: (char*)byteString
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length: (unsigned int)length
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fromZone: (NSZone*)zone
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{
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_count = length;
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_contents_chars = byteString;
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_zone = byteString ? zone : 0;
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return self;
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}
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/* This is the OpenStep designated initializer for this class. */
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- (id) initWithCStringNoCopy: (char*)byteString
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length: (unsigned int)length
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freeWhenDone: (BOOL)flag
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{
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NSZone *z;
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if (flag)
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{
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z = NSZoneFromPointer(byteString);
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}
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else
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{
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z = 0;
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}
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return (*csInitImp)(self, csInitSel, byteString, length, z);
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}
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- (id) initWithCharactersNoCopy: (unichar*)chars
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length: (unsigned int)length
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fromZone: (NSZone*)zone
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{
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NSZone *z = zone ? zone : fastZone(self);
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id a = [[NSGString allocWithZone: z] initWithCharactersNoCopy: chars
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length: length
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fromZone: z];
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[self release];
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return a;
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}
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- (id) initWithCharactersNoCopy: (unichar*)chars
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length: (unsigned int)length
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freeWhenDone: (BOOL)flag
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{
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NSZone *z = fastZone(self);
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id a = [[NSGString allocWithZone: z] initWithCharactersNoCopy: chars
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length: length
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freeWhenDone: flag];
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[self release];
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return a;
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}
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- (id) init
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{
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return [self initWithCStringNoCopy: 0 length: 0 fromZone: 0];
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}
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- (void) _collectionReleaseContents
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{
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return;
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}
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- (void) _collectionDealloc
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{
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if (_zone)
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{
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NSZoneFree(_zone, (void*)_contents_chars);
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_zone = 0;
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}
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}
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- (Class) classForArchiver
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{
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return [self class];
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}
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- (Class) classForCoder
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{
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return [self class];
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}
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- (Class) classForPortCoder
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{
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return [self class];
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}
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- replacementObjectForPortCoder:(NSPortCoder*)aCoder
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{
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return self;
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}
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- (void) encodeWithCoder: aCoder
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{
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[aCoder encodeValueOfObjCType:@encode(unsigned) at:&_count];
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if (_count > 0)
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{
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[aCoder encodeArrayOfObjCType:@encode(unsigned char)
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count:_count
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at:_contents_chars];
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}
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}
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- initWithCoder: aCoder
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{
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[aCoder decodeValueOfObjCType:@encode(unsigned)
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at:&_count];
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if (_count > 0)
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{
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_zone = fastZone(self);
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_contents_chars = NSZoneMalloc(_zone, _count);
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[aCoder decodeArrayOfObjCType:@encode(unsigned char)
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count:_count
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at:_contents_chars];
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}
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return self;
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}
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- copy
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{
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NSZone *z = NSDefaultMallocZone();
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if (NSShouldRetainWithZone(self, z) == NO)
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{
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NSGCString *obj;
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char *tmp;
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obj = (NSGCString*)NSAllocateObject(_fastCls._NSGCString, 0, z);
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tmp = NSZoneMalloc(z, _count);
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memcpy(tmp, _contents_chars, _count);
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obj = (*csInitImp)(obj, csInitSel, tmp, _count, z);
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if (_hash && obj)
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{
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obj->_hash = _hash;
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}
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return obj;
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}
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else
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{
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return [self retain];
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}
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}
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- copyWithZone: (NSZone*)z
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{
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if (NSShouldRetainWithZone(self, z) == NO)
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{
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NSGCString *obj;
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char *tmp;
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obj = (NSGCString*)NSAllocateObject(_fastCls._NSGCString, 0, z);
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tmp = NSZoneMalloc(z, _count);
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memcpy(tmp, _contents_chars, _count);
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obj = (*csInitImp)(obj, csInitSel, tmp, _count, z);
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if (_hash && obj)
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{
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obj->_hash = _hash;
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}
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return obj;
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}
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else
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{
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return [self retain];
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}
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}
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- mutableCopy
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{
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NSGMutableCString *obj;
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obj = (NSGMutableCString*)NSAllocateObject(_fastCls._NSGMutableCString,
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0, NSDefaultMallocZone());
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if (obj)
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{
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obj = (*msInitImp)(obj, msInitSel, _count);
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if (obj)
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{
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NSGCString *tmp = (NSGCString*)obj; // Same ivar layout!
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memcpy(tmp->_contents_chars, _contents_chars, _count);
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tmp->_count = _count;
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tmp->_hash = _hash;
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}
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}
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return obj;
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}
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- mutableCopyWithZone: (NSZone*)z
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{
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NSGMutableCString *obj;
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obj = (NSGMutableCString*)NSAllocateObject(_fastCls._NSGMutableCString, 0, z);
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if (obj)
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{
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obj = (*msInitImp)(obj, msInitSel, _count);
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if (obj)
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{
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NSGCString *tmp = (NSGCString*)obj; // Same ivar layout!
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memcpy(tmp->_contents_chars, _contents_chars, _count);
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tmp->_count = _count;
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tmp->_hash = _hash;
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}
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}
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return obj;
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}
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- (const char *) cString
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{
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char *r = (char*)_fastMallocBuffer(_count+1);
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memcpy(r, _contents_chars, _count);
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r[_count] = '\0';
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return r;
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}
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- (void) getCString: (char*)buffer
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{
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memcpy(buffer, _contents_chars, _count);
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buffer[_count] = '\0';
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}
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- (void) getCString: (char*)buffer
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maxLength: (unsigned int)maxLength
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{
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if (maxLength > _count)
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maxLength = _count;
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memcpy(buffer, _contents_chars, maxLength);
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buffer[maxLength] = '\0';
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}
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- (void) getCString: (char*)buffer
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maxLength: (unsigned int)maxLength
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range: (NSRange)aRange
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remainingRange: (NSRange*)leftoverRange
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{
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int len;
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if (aRange.location >= _count)
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[NSException raise: NSRangeException format:@"Invalid location."];
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if (aRange.length > (_count - aRange.location))
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[NSException raise: NSRangeException format:@"Invalid location+length."];
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if (maxLength < aRange.length)
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{
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len = maxLength;
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if (leftoverRange)
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{
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leftoverRange->location = 0;
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leftoverRange->length = 0;
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}
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}
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else
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{
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len = aRange.length;
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if (leftoverRange)
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{
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leftoverRange->location = aRange.location + maxLength;
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leftoverRange->length = aRange.length - maxLength;
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}
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}
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memcpy(buffer, &_contents_chars[aRange.location], len);
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buffer[len] = '\0';
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}
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- (unsigned) count
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{
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return _count;
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}
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- (unsigned int) cStringLength
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{
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return _count;
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}
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- (unsigned int) length
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{
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return _count;
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}
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- (unichar) characterAtIndex: (unsigned int)index
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{
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CHECK_INDEX_RANGE_ERROR(index, _count);
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return chartouni(_contents_chars[index]);
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}
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- (void) getCharacters: (unichar*)buffer
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{
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int i;
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for (i = 0; i < _count; i++)
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buffer[i] = chartouni(((unsigned char *)_contents_chars)[i]);
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}
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- (void) getCharacters: (unichar*)buffer range: (NSRange)aRange
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{
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int e, i;
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if (aRange.location >= _count)
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[NSException raise: NSRangeException format:@"Invalid location."];
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if (aRange.length > (_count - aRange.location))
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[NSException raise: NSRangeException format:@"Invalid location+length."];
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e = aRange.location + aRange.length;
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for (i = aRange.location; i < e; i++)
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*buffer++ = chartouni(((unsigned char *)_contents_chars)[i]);
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}
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- (NSString*) substringFromRange: (NSRange)aRange
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{
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if (aRange.location > _count)
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[NSException raise: NSRangeException format:@"Invalid location."];
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if (aRange.length > (_count - aRange.location))
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[NSException raise: NSRangeException format:@"Invalid location+length."];
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return [[self class] stringWithCString: _contents_chars + aRange.location
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length: aRange.length];
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}
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- (NSStringEncoding) fastestEncoding
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{
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if(([NSString defaultCStringEncoding]==NSASCIIStringEncoding) || ([NSString defaultCStringEncoding]==NSISOLatin1StringEncoding))
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return [NSString defaultCStringEncoding];
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else
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return NSUnicodeStringEncoding;
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}
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- (NSStringEncoding) smallestEncoding
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{
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return [NSString defaultCStringEncoding];
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}
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- (BOOL) isEqual: (id)anObject
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{
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Class c;
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if (anObject == self)
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return YES;
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if (anObject == nil)
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return NO;
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c = fastClassOfInstance(anObject);
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if (c == _fastCls._NSGCString || c == _fastCls._NSGMutableCString || c == _fastCls._NXConstantString)
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{
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NSGCString *other = (NSGCString*)anObject;
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if (_count != other->_count)
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return NO;
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if (_hash == 0)
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_hash = _fastImp._NSString_hash(self, @selector(hash));
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if (other->_hash == 0)
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other->_hash = _fastImp._NSString_hash(other, @selector(hash));
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if (_hash != other->_hash)
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return NO;
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if (memcmp(_contents_chars, other->_contents_chars, _count) != 0)
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return NO;
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return YES;
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}
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else if (c == nil)
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return NO;
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else if (fastClassIsKindOfClass(c, _fastCls._NSString))
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return _fastImp._NSString_isEqualToString_(self,
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@selector(isEqualToString:), anObject);
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else
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return NO;
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}
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- (BOOL) isEqualToString: (NSString*)aString
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{
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Class c;
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if (aString == self)
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return YES;
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if (aString == nil)
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return NO;
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c = fastClassOfInstance(aString);
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if (c == _fastCls._NSGCString || c == _fastCls._NSGMutableCString || c == _fastCls._NXConstantString)
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{
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NSGCString *other = (NSGCString*)aString;
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if (_count != other->_count)
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return NO;
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if (_hash == 0)
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_hash = _fastImp._NSString_hash(self, @selector(hash));
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if (other->_hash == 0)
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other->_hash = _fastImp._NSString_hash(other, @selector(hash));
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if (_hash != other->_hash)
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return NO;
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if (memcmp(_contents_chars, other->_contents_chars, _count) != 0)
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return NO;
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return YES;
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}
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else if (c == nil)
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return NO;
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else if (fastClassIsKindOfClass(c, _fastCls._NSString))
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return _fastImp._NSString_isEqualToString_(self,
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@selector(isEqualToString:), aString);
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else
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return NO;
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}
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// FOR IndexedCollection SUPPORT;
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- objectAtIndex: (unsigned)index
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{
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CHECK_INDEX_RANGE_ERROR(index, _count);
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return [NSNumber numberWithChar: _contents_chars[index]];
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}
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- (int) _baseLength
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{
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return _count;
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}
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- (id) initWithString: (NSString*)string
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{
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NSZone *z = fastZone(self);
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unsigned length = [string cStringLength];
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char *buf = NSZoneMalloc(z, length+1); // getCString appends a nul.
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[string getCString: buf];
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return [self initWithCStringNoCopy: buf length: length fromZone: z];
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}
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- (NSString*) descriptionForPropertyList
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{
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if (_count == 0) {
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return @"\"\"";
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}
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else {
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unsigned i;
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unsigned length = _count;
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BOOL needQuote = NO;
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for (i = 0; i < _count; i++) {
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char val = _contents_chars[i];
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|
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if (isalnum(val)) {
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continue;
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}
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switch (val) {
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case '\a':
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case '\b':
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case '\t':
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case '\r':
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case '\n':
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case '\v':
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case '\f':
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case '\\':
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case '"' :
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length += 1;
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break;
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default:
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if (val == ' ' || isprint(val)) {
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needQuote = YES;
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}
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else {
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length += 3;
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}
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break;
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}
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}
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if (needQuote || length != _count) {
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NSZone *z = fastZone(self);
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char *buf = NSZoneMalloc(z, length+3);
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char *ptr = buf;
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NSString *result;
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*ptr++ = '"';
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for (i = 0; i < _count; i++) {
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char val = _contents_chars[i];
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switch (val) {
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case '\a': *ptr++ = '\\'; *ptr++ = 'a'; break;
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case '\b': *ptr++ = '\\'; *ptr++ = 'b'; break;
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case '\t': *ptr++ = '\\'; *ptr++ = 't'; break;
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case '\r': *ptr++ = '\\'; *ptr++ = 'r'; break;
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case '\n': *ptr++ = '\\'; *ptr++ = 'n'; break;
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case '\v': *ptr++ = '\\'; *ptr++ = 'v'; break;
|
||
case '\f': *ptr++ = '\\'; *ptr++ = 'f'; break;
|
||
case '\\': *ptr++ = '\\'; *ptr++ = '\\'; break;
|
||
case '"' : *ptr++ = '\\'; *ptr++ = '"'; break;
|
||
|
||
default:
|
||
if (isprint(val) || val == ' ') {
|
||
*ptr++ = val;
|
||
}
|
||
else {
|
||
*ptr++ = '\\';
|
||
*ptr++ = '0';
|
||
*ptr++ = ((val&0700)>>6)+'0';
|
||
*ptr++ = ((val&070)>>3)+'0';
|
||
*ptr++ = (val&07)+'0';
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
*ptr++ = '"';
|
||
*ptr = '\0';
|
||
result = [[[_fastCls._NSGCString alloc] initWithCStringNoCopy: buf
|
||
length: length+2 fromZone: z] autorelease];
|
||
return result;
|
||
}
|
||
return self;
|
||
}
|
||
}
|
||
@end
|
||
|
||
|
||
@implementation NSGMutableCString
|
||
|
||
+ allocWithZone: (NSZone*)z
|
||
{
|
||
return NSAllocateObject (self, 0, z);
|
||
}
|
||
|
||
+ alloc
|
||
{
|
||
return NSAllocateObject (self, 0, NSDefaultMallocZone());
|
||
}
|
||
|
||
+ (void) initialize
|
||
{
|
||
static int done = 0;
|
||
if (!done)
|
||
{
|
||
done = 1;
|
||
class_add_behavior(self, [NSGCString class]);
|
||
}
|
||
}
|
||
|
||
typedef struct {
|
||
@defs(NSGMutableCString)
|
||
} NSGMutableCStringStruct;
|
||
|
||
static inline void
|
||
stringIncrementCountAndMakeHoleAt(NSGMutableCStringStruct *self,
|
||
int index, int size)
|
||
{
|
||
#ifndef STABLE_MEMCPY
|
||
{
|
||
int i;
|
||
for (i = self->_count; i >= index; i--)
|
||
self->_contents_chars[i+size] = self->_contents_chars[i];
|
||
}
|
||
#else
|
||
memcpy(self->_contents_chars + index,
|
||
self->_contents_chars + index + size,
|
||
self->_count - index);
|
||
#endif /* STABLE_MEMCPY */
|
||
(self->_count) += size;
|
||
(self->_hash) = 0;
|
||
}
|
||
|
||
static inline void
|
||
stringDecrementCountAndFillHoleAt(NSGMutableCStringStruct *self,
|
||
int index, int size)
|
||
{
|
||
(self->_count) -= size;
|
||
#ifndef STABLE_MEMCPY
|
||
{
|
||
int i;
|
||
for (i = index; i <= self->_count; i++)
|
||
self->_contents_chars[i] = self->_contents_chars[i+size];
|
||
}
|
||
#else
|
||
memcpy(self->_contents_chars + index + size,
|
||
self->_contents_chars + index,
|
||
self->_count - index);
|
||
#endif /* STABLE_MEMCPY */
|
||
(self->_hash) = 0;
|
||
}
|
||
|
||
/* This is the designated initializer for this class */
|
||
- initWithCapacity: (unsigned)capacity
|
||
{
|
||
_count = 0;
|
||
_capacity = capacity;
|
||
if (capacity)
|
||
{
|
||
_zone = fastZone(self);
|
||
_contents_chars = NSZoneMalloc(_zone, _capacity);
|
||
}
|
||
return self;
|
||
}
|
||
|
||
- (id) initWithCStringNoCopy: (char*)byteString
|
||
length: (unsigned int)length
|
||
fromZone: (NSZone*)zone
|
||
{
|
||
self = (*msInitImp)(self, msInitSel, 0);
|
||
if (self)
|
||
{
|
||
_count = length;
|
||
_capacity = length;
|
||
_contents_chars = byteString;
|
||
_zone = byteString ? zone : 0;
|
||
}
|
||
return self;
|
||
}
|
||
|
||
- (id) initWithCharactersNoCopy: (unichar*)chars
|
||
length: (unsigned int)length
|
||
fromZone: (NSZone*)zone
|
||
{
|
||
NSZone *z = zone ? zone : fastZone(self);
|
||
id a = [[NSGMutableString allocWithZone: z] initWithCharactersNoCopy: chars
|
||
length: length
|
||
fromZone: z];
|
||
[self release];
|
||
return a;
|
||
}
|
||
|
||
- (id) initWithCharactersNoCopy: (unichar*)chars
|
||
length: (unsigned int)length
|
||
freeWhenDone: (BOOL)flag
|
||
{
|
||
NSZone *z = fastZone(self);
|
||
id a = [[NSGMutableString allocWithZone: z] initWithCharactersNoCopy: chars
|
||
length: length
|
||
freeWhenDone: flag];
|
||
[self release];
|
||
return a;
|
||
}
|
||
|
||
- copy
|
||
{
|
||
char *tmp;
|
||
NSGCString *obj;
|
||
NSZone *z = NSDefaultMallocZone();
|
||
|
||
obj = (NSGCString*)NSAllocateObject(_fastCls._NSGCString, 0, z);
|
||
tmp = NSZoneMalloc(z, _count);
|
||
memcpy(tmp, _contents_chars, _count);
|
||
obj = (*csInitImp)(obj, csInitSel, tmp, _count, z);
|
||
if (_hash && obj)
|
||
{
|
||
NSGMutableCString *tmp = (NSGMutableCString*)obj; // Same ivar layout
|
||
|
||
tmp->_hash = _hash;
|
||
}
|
||
return obj;
|
||
}
|
||
|
||
- copyWithZone: (NSZone*)z
|
||
{
|
||
char *tmp;
|
||
NSGCString *obj;
|
||
|
||
obj = (NSGCString*)NSAllocateObject(_fastCls._NSGCString, 0, z);
|
||
tmp = NSZoneMalloc(z, _count);
|
||
memcpy(tmp, _contents_chars, _count);
|
||
obj = (*csInitImp)(obj, csInitSel, tmp, _count, z);
|
||
if (_hash && obj)
|
||
{
|
||
NSGMutableCString *tmp = (NSGMutableCString*)obj; // Same ivar layout
|
||
|
||
tmp->_hash = _hash;
|
||
}
|
||
return obj;
|
||
}
|
||
|
||
- mutableCopy
|
||
{
|
||
NSGMutableCString *obj;
|
||
|
||
obj = (NSGMutableCString*)NSAllocateObject(_fastCls._NSGMutableCString,
|
||
0, NSDefaultMallocZone());
|
||
if (obj)
|
||
{
|
||
obj = (*msInitImp)(obj, msInitSel, _count);
|
||
if (obj)
|
||
{
|
||
memcpy(obj->_contents_chars, _contents_chars, _count);
|
||
obj->_count = _count;
|
||
obj->_hash = _hash;
|
||
}
|
||
}
|
||
return obj;
|
||
}
|
||
|
||
- mutableCopyWithZone: (NSZone*)z
|
||
{
|
||
NSGMutableCString *obj;
|
||
|
||
obj = (NSGMutableCString*)NSAllocateObject(_fastCls._NSGMutableCString, 0, z);
|
||
if (obj)
|
||
{
|
||
obj = (*msInitImp)(obj, msInitSel, _count);
|
||
if (obj)
|
||
{
|
||
memcpy(obj->_contents_chars, _contents_chars, _count);
|
||
obj->_count = _count;
|
||
obj->_hash = _hash;
|
||
}
|
||
}
|
||
}
|
||
|
||
- (void) deleteCharactersInRange: (NSRange)range
|
||
{
|
||
stringDecrementCountAndFillHoleAt((NSGMutableCStringStruct*)self,
|
||
range.location, range.length);
|
||
}
|
||
|
||
// xxx This should be primitive method
|
||
- (void) replaceCharactersInRange: (NSRange)range
|
||
withString: (NSString*)aString
|
||
{
|
||
[self deleteCharactersInRange:range];
|
||
[self insertString:aString atIndex:range.location];
|
||
}
|
||
|
||
- (void) insertString: (NSString*)aString atIndex:(unsigned)index
|
||
{
|
||
unsigned c = [aString cStringLength];
|
||
char save;
|
||
if (_count + c >= _capacity)
|
||
{
|
||
_capacity = MAX(_capacity*2, _count+c+1);
|
||
_contents_chars = NSZoneRealloc(_zone, _contents_chars, _capacity);
|
||
}
|
||
stringIncrementCountAndMakeHoleAt((NSGMutableCStringStruct*)self, index, c);
|
||
save = _contents_chars[index+c]; // getCString will put a nul here.
|
||
[aString getCString: _contents_chars + index];
|
||
_contents_chars[index+c] = save;
|
||
}
|
||
|
||
- (void) appendString: (NSString*)aString
|
||
{
|
||
Class c;
|
||
|
||
if (aString == nil || (c = fastClassOfInstance(aString)) == nil)
|
||
return;
|
||
if (c == _fastCls._NSGCString || c == _fastCls._NSGMutableCString)
|
||
{
|
||
NSGMutableCString *other = (NSGMutableCString*)aString;
|
||
unsigned l = other->_count;
|
||
|
||
if (_count + l > _capacity)
|
||
{
|
||
_capacity = MAX(_capacity*2, _count+l);
|
||
_contents_chars =
|
||
NSZoneRealloc(fastZone(self), _contents_chars, _capacity);
|
||
}
|
||
memcpy(_contents_chars + _count, other->_contents_chars, l);
|
||
_count += l;
|
||
_hash = 0;
|
||
}
|
||
else
|
||
{
|
||
unsigned l = [aString cStringLength];
|
||
if (_count + l >= _capacity)
|
||
{
|
||
_capacity = MAX(_capacity*2, _count+l+1);
|
||
_contents_chars =
|
||
NSZoneRealloc(fastZone(self), _contents_chars, _capacity);
|
||
}
|
||
[aString getCString: _contents_chars + _count];
|
||
_count += l;
|
||
_hash = 0;
|
||
}
|
||
}
|
||
|
||
- (void) setString: (NSString*)aString
|
||
{
|
||
unsigned length = [aString cStringLength];
|
||
if (_capacity <= length)
|
||
{
|
||
_capacity = length+1;
|
||
_contents_chars =
|
||
NSZoneRealloc(fastZone(self), _contents_chars, _capacity);
|
||
}
|
||
[aString getCString: _contents_chars];
|
||
_count = length;
|
||
_hash = 0;
|
||
}
|
||
|
||
- (id) init
|
||
{
|
||
return [self initWithCStringNoCopy: 0 length: 0 fromZone: 0];
|
||
}
|
||
|
||
/* For IndexedCollecting Protocol and other GNU libobjects conformity. */
|
||
|
||
/* xxx This should be made to return void, but we need to change
|
||
IndexedCollecting and its conformers */
|
||
- (void) removeRange: (IndexRange)range
|
||
{
|
||
stringDecrementCountAndFillHoleAt((NSGMutableCStringStruct*)self,
|
||
range.location, range.length);
|
||
}
|
||
|
||
- initWithCoder: aCoder
|
||
{
|
||
unsigned cap;
|
||
|
||
[aCoder decodeValueOfObjCType:@encode(unsigned) at:&cap];
|
||
[self initWithCapacity:cap];
|
||
_count = cap;
|
||
if (_count > 0)
|
||
{
|
||
[aCoder decodeArrayOfObjCType: @encode(unsigned char)
|
||
count: _count
|
||
at: _contents_chars];
|
||
}
|
||
return self;
|
||
}
|
||
|
||
/* For IndexedCollecting protocol */
|
||
|
||
- (char) charAtIndex: (unsigned)index
|
||
{
|
||
CHECK_INDEX_RANGE_ERROR(index, _count);
|
||
return _contents_chars[index];
|
||
}
|
||
|
||
|
||
// FOR IndexedCollection and OrderedCollection SUPPORT;
|
||
|
||
- (void) insertObject: newObject atIndex: (unsigned)index
|
||
{
|
||
CHECK_INDEX_RANGE_ERROR(index, _count+1);
|
||
// one for the next char, one for the '\0';
|
||
if (_count >= _capacity)
|
||
{
|
||
_capacity *= 2;
|
||
_contents_chars =
|
||
NSZoneRealloc(fastZone(self), _contents_chars, _capacity);
|
||
}
|
||
stringIncrementCountAndMakeHoleAt((NSGMutableCStringStruct*)self, index, 1);
|
||
_contents_chars[index] = [newObject charValue];
|
||
}
|
||
|
||
- (void) removeObjectAtIndex: (unsigned)index
|
||
{
|
||
CHECK_INDEX_RANGE_ERROR(index, _count);
|
||
stringDecrementCountAndFillHoleAt((NSGMutableCStringStruct*)self, index, 1);
|
||
}
|
||
|
||
@end
|
||
|
||
@implementation NXConstantString
|
||
|
||
/*
|
||
* NXConstantString overrides [-dealloc] so that it is never deallocated.
|
||
* If we pass an NXConstantString to another process or record it in an
|
||
* archive and readi it back, the new copy will never be deallocated -
|
||
* causing a memory leak. So we tell the system to use the super class.
|
||
*/
|
||
- (Class)classForArchiver
|
||
{
|
||
return [self superclass];
|
||
}
|
||
|
||
- (Class)classForCoder
|
||
{
|
||
return [self superclass];
|
||
}
|
||
|
||
- (Class)classForPortCoder
|
||
{
|
||
return [self superclass];
|
||
}
|
||
|
||
- (void)dealloc
|
||
{
|
||
}
|
||
|
||
- (const char*) cString
|
||
{
|
||
return _contents_chars;
|
||
}
|
||
|
||
- retain
|
||
{
|
||
return self;
|
||
}
|
||
|
||
- (oneway void) release
|
||
{
|
||
return;
|
||
}
|
||
|
||
- autorelease
|
||
{
|
||
return self;
|
||
}
|
||
|
||
- copyWithZone: (NSZone*)z
|
||
{
|
||
return self;
|
||
}
|
||
|
||
- (NSZone*) zone
|
||
{
|
||
return NSDefaultMallocZone();
|
||
}
|
||
|
||
- (NSStringEncoding) fastestEncoding
|
||
{
|
||
return NSASCIIStringEncoding;
|
||
}
|
||
|
||
- (NSStringEncoding) smallestEncoding
|
||
{
|
||
return NSASCIIStringEncoding;
|
||
}
|
||
|
||
- (unichar) characterAtIndex: (unsigned int)index
|
||
{
|
||
CHECK_INDEX_RANGE_ERROR(index, _count);
|
||
return (unichar)_contents_chars[index];
|
||
}
|
||
|
||
@end
|