Fixed +[NSValueTransformer valueTransformerForName:] to automatically register

any available NSValueTransformer subclass that matches  the given name and is 
not yet registered. This behavior is described in the Cocoa API documentation.


git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@37565 72102866-910b-0410-8b05-ffd578937521

Source/NSValueTransformer.m

@@ -102,6 +102,20 @@ static GSLazyLock *lock = nil;
   [lock lock];
   transformer = [registry objectForKey: name];
   IF_NO_GC([transformer retain];)
+
+  if (transformer == nil)
+    {
+      Class transformerClass = NSClassFromString(name);
+
+      if (transformerClass != Nil 
+        && [transformerClass isSubclassOfClass: [NSValueTransformer class]])
+        {
+          transformer = [[transformerClass alloc] init];
+
+          [registry setObject: transformer forKey: name];
+        }
+    }
+
   [lock unlock];
   return AUTORELEASE(transformer);
 }