Initial revision

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@92 72102866-910b-0410-8b05-ffd578937521

Source/CString.m

@@ -0,0 +1,100 @@
+/* Implementation for GNU Objective-C CString object
+   Copyright (C) 1993,1994 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: (char*)aCharPtr range: (IndexRange)aRange
+{
+  [super initWithType:@encode(char)];
+  _count = aRange.end - aRange.start;
+  OBJC_MALLOC(_contents_chars, char, _count+1);
+  memcpy(_contents_chars, aCharPtr + aRange.start, _count);
+  _contents_chars[_count] = '\0';
+  return self;
+}
+
+- (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"];
+}
+
++ newWithCoder: aCoder
+{
+  CString *n = [super newWithCoder:aCoder];
+  [aCoder decodeValueOfType:@encode(char*) at:&(n->_contents_chars)
+	  withName:NULL];
+  n->_count = strlen(n->_contents_chars);
+  return n;
+}
+
+/* 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