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52f6bc90ae
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@3496 72102866-910b-0410-8b05-ffd578937521
168 lines
3.2 KiB
Objective-C
168 lines
3.2 KiB
Objective-C
/* Implementation of GNU Objective C byte stream
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Copyright (C) 1994, 1995, 1996 Free Software Foundation, Inc.
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Written by: Andrew Kachites McCallum <mccallum@gnu.ai.mit.edu>
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Created: July 1994
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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 <base/preface.h>
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#include <base/Stream.h>
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#include <base/Coder.h>
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#include <base/Coder.h>
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#include <base/NSString.h>
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@implementation Stream
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/* This is the designated initializer. */
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- init
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{
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return [super init];
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}
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- (int) writeByte: (unsigned char)b
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{
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return [self writeBytes:&b length:1];
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}
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- (int) readByte: (unsigned char*)b
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{
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return [self readBytes:b length:1];
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}
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- (int) writeBytes: (const void*)b length: (int)l
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{
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[self subclassResponsibility:_cmd];
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return 0;
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}
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- (int) readBytes: (void*)b length: (int)l
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{
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[self subclassResponsibility:_cmd];
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return 0;
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}
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- (int) writeFormat: (NSString*)format
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arguments: (va_list)arg
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{
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[self subclassResponsibility:_cmd];
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return 0;
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}
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- (int) writeFormat: (NSString*)format, ...
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{
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int ret;
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va_list ap;
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va_start(ap, format);
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ret = [self writeFormat: format arguments: ap];
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va_end(ap);
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return ret;
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}
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- (int) readFormat: (NSString*)format
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arguments: (va_list)arg
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{
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[self subclassResponsibility:_cmd];
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return 0;
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}
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- (int) readFormat: (NSString*)format, ...
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{
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[self subclassResponsibility:_cmd];
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return 0;
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}
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- (void) writeLine: (NSString*)l
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{
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const char *s = [l cString];
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[self writeBytes:s length:strlen(s)];
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[self writeBytes:"\n" length:1];
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}
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- (NSString*) readLine
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{
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char *l;
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[self readFormat: @"%a[^\n]\n", &l];
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return [[[NSString alloc] initWithCStringNoCopy: l
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length: strlen (l)
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freeWhenDone: YES]
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autorelease];
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}
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- (void) flushStream
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{
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/* Do nothing. */
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}
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- (void) close
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{
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/* Do nothing. */
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}
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- (BOOL) isClosed
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{
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return NO;
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}
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- (void) setStreamPosition: (unsigned)i seekMode: (seek_mode_t)mode
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{
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[self subclassResponsibility:_cmd];
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}
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- (void) setStreamPosition: (unsigned)i
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{
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[self setStreamPosition: i seekMode: STREAM_SEEK_FROM_START];
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}
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- (void) rewindStream
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{
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[self setStreamPosition:0];
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}
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- (unsigned) streamPosition
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{
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[self subclassResponsibility:_cmd];
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return 0;
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}
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- (BOOL) isAtEof
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{
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[self subclassResponsibility:_cmd];
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return YES;
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}
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- (BOOL) isWritable
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{
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[self subclassResponsibility:_cmd];
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return NO;
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}
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- (void) encodeWithCoder: anEncoder
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{
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[self subclassResponsibility:_cmd];
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}
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- initWithCoder: aDecoder
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{
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[self subclassResponsibility:_cmd];
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return self;
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}
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@end
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