Added -stringByReplacingCharactersInRange:withString: (Mac OS 10.5 method)

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@31776 72102866-910b-0410-8b05-ffd578937521

Source/NSString.m

@@ -1786,6 +1786,7 @@ handle_printf_atsign (FILE *stream,
                              range: searchRange];
   return [copy makeImmutableCopyOnFail: NO];
 }
+
 - (NSString*)stringByReplacingOccurrencesOfString: (NSString*)replace
                                        withString: (NSString*)by
 {
@@ -1796,6 +1797,18 @@ handle_printf_atsign (FILE *stream,
                                      range: NSMakeRange(0, [self length])];
 }
 
+/**
+ * Returns a new string where the substring in the given range is replaced by 
+ * the passed string. 
+ */
+- (NSString*) stringByReplacingCharactersInRange: (NSRange)aRange 
+                                      withString: (NSString*)by
+{
+  id copy = [self mutableCopy];
+  [copy replaceCharactersInRange: aRange withString: by];
+  return [copy makeImmutableCopyOnFail: NO];
+}
+
 /**
  * Returns a substring of the receiver from character at the specified
  * index to the end of the string.<br />