diff -r 6c837185aa61 -r 573077aa2826 src/Pure/PIDE/document.scala
--- a/src/Pure/PIDE/document.scala	Thu Dec 21 22:56:51 2017 +0100
+++ b/src/Pure/PIDE/document.scala	Fri Dec 22 11:39:49 2017 +0100
@@ -323,7 +323,7 @@
     def command_start(cmd: Command): Option[Text.Offset] =
       Node.Commands.starts(commands.iterator).find(_._1 == cmd).map(_._2)
 
-    def get_text: String =
+    def source: String =
       get_blob match {
         case Some(blob) => blob.bytes.text
         case None => command_iterator(0).map({ case (cmd, _) => cmd.source }).mkString