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/* Implementation for GNU Objective-C CString object
Copyright (C) 1993,1994, 1995 Free Software Foundation, Inc.
Written by: R. Andrew McCallum <mccallum@gnu.ai.mit.edu>
Date: July 1994
This file is part of the GNU Objective C Class Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <objects/String.h>
#include <objects/IndexedCollection.h>
#include <objects/IndexedCollectionPrivate.h>
/* memcpy(), strlen(), strcmp() are gcc builtin's */
@implementation CString
/* This is the designated initializer for this class */
- initWithCString: (const char*)aCharPtr range: (IndexRange)aRange
{
[super initWithType:@encode(char)];
_count = aRange.length;
OBJC_MALLOC(_contents_chars, char, _count+1);
memcpy(_contents_chars, aCharPtr + aRange.location, _count);
_contents_chars[_count] = '\0';
_free_contents = YES;
return self;
}
- (void) dealloc
{
if (_free_contents)
OBJC_FREE(_contents_chars);
[super dealloc];
}
- (Class) classForConnectedCoder: aRmc
{
/* Make sure that Connection's always send us bycopy,
i.e. as our own class, not a Proxy class. */
return [self class];
}
- (void) encodeWithCoder: aCoder
{
[aCoder encodeValueOfType:@encode(char*) at:&_contents_chars
withName:"Concrete String content_chars"];
}
- initWithCoder: aCoder
{
[super initWithCoder:aCoder];
[aCoder decodeValueOfType:@encode(char*) at:&_contents_chars
withName:NULL];
_count = strlen(_contents_chars);
_free_contents = YES;
return self;
}
/* Empty copy must empty an allocCopy'ed version of self */
- emptyCopy
{
CString *copy = [super emptyCopy];
OBJC_MALLOC(copy->_contents_chars, char, _count+1);
copy->_count = 0;
copy->_contents_chars[0] = '\0';
return copy;
}
- (const char *) cString
{
return _contents_chars;
}
- (unsigned) count
{
return _count;
}
- (char) charAtIndex: (unsigned)index
{
CHECK_INDEX_RANGE_ERROR(index, _count);
return _contents_chars[index];
}
// FOR IndexedCollection SUPPORT;
- (elt) elementAtIndex: (unsigned)index
{
elt ret_elt;
CHECK_INDEX_RANGE_ERROR(index, _count);
ret_elt.char_u = _contents_chars[index];
return ret_elt;
}
@end
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