--- a/src/Pure/General/yxml.scala Tue Nov 09 23:24:46 2010 +0100
+++ b/src/Pure/General/yxml.scala Wed Nov 10 11:44:35 2010 +0100
@@ -7,7 +7,7 @@
package isabelle
-import scala.collection.mutable.ListBuffer
+import scala.collection.mutable
object YXML
@@ -84,8 +84,8 @@
{
/* stack operations */
- def buffer(): ListBuffer[XML.Tree] = new ListBuffer[XML.Tree]
- var stack: List[(Markup, ListBuffer[XML.Tree])] = List((Markup.Empty, buffer()))
+ def buffer(): mutable.ListBuffer[XML.Tree] = new mutable.ListBuffer[XML.Tree]
+ var stack: List[(Markup, mutable.ListBuffer[XML.Tree])] = List((Markup.Empty, buffer()))
def add(x: XML.Tree)
{