1 /* 2 Copyright (C) 2000-2005 SKYRIX Software AG 3 4 This file is part of SOPE. 5 6 SOPE is free software; you can redistribute it and/or modify it under 7 the terms of the GNU Lesser General Public License as published by the 8 Free Software Foundation; either version 2, or (at your option) any 9 later version. 10 11 SOPE is distributed in the hope that it will be useful, but WITHOUT ANY 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 14 License for more details. 15 16 You should have received a copy of the GNU Lesser General Public 17 License along with SOPE; see the file COPYING. If not, write to the 18 Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 19 02111-1307, USA. 20 */ 21 22 #ifndef __NGStreams_NGStringTextStream_H__ 23 #define __NGStreams_NGStringTextStream_H__ 24 25 #include <NGStreams/NGTextStream.h> 26 #include <NGStreams/NGTextStreamProtocols.h> 27 28 /* 29 NGStringTextStream 30 31 A text stream which navigates inside an NSString or NSMutableString object. 32 */ 33 34 @interface NGStringTextStream : NGTextStream 35 { 36 @private 37 NSString *string; // retained 38 unsigned index; // position 39 BOOL isMutable; 40 } 41 42 + (id)textStreamWithString:(NSString *)_string; 43 - (id)initWithString:(NSString *)_string; 44 45 // accessors 46 47 - (NSString *)string; 48 49 // operations 50 51 - (BOOL)close; // releases string 52 53 // NGTextInputStream, NGExtendedTextInputStream 54 55 - (unichar)readCharacter; 56 57 - (NSString *)readLineAsString; // inefficient implementation 58 59 // NGTextOutputStream, NGExtendedTextOutputStream 60 61 // throws 62 // NGReadOnlyStreamException when the stream is not writeable 63 // NGStreamNotOpenException when the stream is not open 64 - (BOOL)writeCharacter:(unichar)_character; 65 66 // throws 67 // NGReadOnlyStreamException when the stream is not writeable 68 // NGStreamNotOpenException when the stream is not open 69 - (BOOL)writeString:(NSString *)_string; 70 71 - (BOOL)flush; 72 73 @end 74 75 #endif /* __NGStreams_NGStringTextStream_H__ */ 76