mirror of
https://github.com/gnustep/libs-base.git
synced 2025-04-20 23:11:59 +00:00
97 lines
2.8 KiB
C
97 lines
2.8 KiB
C
|
/* Definition for GNUStep of NSString concrete subclasses
|
||
|
|
Copyright (C) 1997-2006 Free Software Foundation, Inc.
|
||
|
|
|
||
|
|
This file is part of the GNUstep Base 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., 51 Franklin Street, Fifth Floor,
|
||
|
|
Boston, MA 02111 USA.
|
||
|
|
|
||
|
|
$Date: 2006-10-28 16:43:48 +0800 (Sat, 28 Oct 2006) $ $Revision: 23979 $
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __GSString_h_GNUSTEP_BASE_INCLUDE_PRIVATE
|
||
|
|
#define __GSString_h_GNUSTEP_BASE_INCLUDE_PRIVATE
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Type to hold either UTF-16 (unichar) or 8-bit encodings,
|
||
|
|
* while satisfying alignment constraints.
|
||
|
|
*/
|
||
|
|
typedef union {
|
||
|
|
unichar *u; // 16-bit unicode characters.
|
||
|
|
unsigned char *c; // 8-bit characters.
|
||
|
|
} GSCharPtr;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Private concrete string classes.
|
||
|
|
* NB. All these concrete string classes MUST have the same initial ivar
|
||
|
|
* layout so that we can swap between them as necessary.
|
||
|
|
* The initial layout must also match that of NXConstantString (which is
|
||
|
|
* determined by the compiler) - an initial pointer to the string data
|
||
|
|
* followed by the string length (number of characters).
|
||
|
|
*/
|
||
|
|
@interface GSString : NSString
|
||
|
|
{
|
||
|
|
GSCharPtr _contents;
|
||
|
|
unsigned int _count;
|
||
|
|
struct {
|
||
|
|
unsigned int wide: 1; // 16-bit characters in string?
|
||
|
|
unsigned int free: 1; // Set if the instance owns the
|
||
|
|
// _contents buffer
|
||
|
|
unsigned int fixed: 1; // is fixed buffer
|
||
|
|
unsigned int unused: 1;
|
||
|
|
unsigned int hash: 28;
|
||
|
|
} _flags;
|
||
|
|
}
|
||
|
|
@end
|
||
|
|
|
||
|
|
/*
|
||
|
|
* GSMutableString - concrete mutable string, capable of changing its storage
|
||
|
|
* from holding 8-bit to 16-bit character set.
|
||
|
|
*/
|
||
|
|
@interface GSMutableString : NSMutableString
|
||
|
|
{
|
||
|
|
union {
|
||
|
|
unichar *u;
|
||
|
|
unsigned char *c;
|
||
|
|
} _contents;
|
||
|
|
unsigned int _count;
|
||
|
|
struct {
|
||
|
|
unsigned int wide: 1;
|
||
|
|
unsigned int free: 1;
|
||
|
|
unsigned int fixed: 1;
|
||
|
|
unsigned int unused: 1;
|
||
|
|
unsigned int hash: 28;
|
||
|
|
} _flags;
|
||
|
|
NSZone *_zone;
|
||
|
|
unsigned int _capacity;
|
||
|
|
}
|
||
|
|
@end
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Typedef for access to internals of concrete string objects.
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
@defs(GSMutableString)
|
||
|
|
} GSStr_t;
|
||
|
|
typedef GSStr_t *GSStr;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Functions to append to GSStr
|
||
|
|
*/
|
||
|
|
extern void GSStrAppendUnichar(GSStr s, unichar);
|
||
|
|
extern void GSStrAppendUnichars(GSStr s, const unichar *u, unsigned l);
|
||
|
|
|
||
|
|
#endif /* __GSString_h_GNUSTEP_BASE_INCLUDE_PRIVATE */
|