Index: src/OFMutableString.h
==================================================================
--- src/OFMutableString.h
+++ src/OFMutableString.h
@@ -88,10 +88,17 @@
  * \param args The arguments used in the format string
  */
 - (void)appendFormat: (OFString*)fmt
        withArguments: (va_list)args;
 
+/**
+ * Prepends another OFString to the OFString.
+ *
+ * \param str An OFString to prepend
+ */
+- (void)prependString: (OFString*)str;
+
 /**
  * Reverse the OFString.
  */
 - (void)reverse;
 

Index: src/OFMutableString.m
==================================================================
--- src/OFMutableString.m
+++ src/OFMutableString.m
@@ -250,10 +250,16 @@
 		[self appendCString: t];
 	} @finally {
 		free(t);
 	}
 }
+
+- (void)prependString: (OFString*)str
+{
+	return [self insertString: str
+			  atIndex: 0];
+}
 
 - (void)reverse
 {
 	size_t i, j, len = length / 2;