diff -r 500a5d97511a -r fb5764df8a9c src/Pure/General/symbol.scala
--- a/src/Pure/General/symbol.scala	Mon Mar 26 19:18:03 2012 +0200
+++ b/src/Pure/General/symbol.scala	Mon Mar 26 20:42:00 2012 +0200
@@ -347,7 +347,7 @@
       "\\<^isub>", "\\<^isup>")
 
     val blanks =
-      recode_set(space, "\t", "\n", "\u000B", "\f", "\r", "\\<spacespace>", "\\<^newline>")
+      recode_set(space, "\t", "\n", "\u000B", "\f", "\r", "\r\n", "\\<spacespace>", "\\<^newline>")
 
     val sym_chars =
       Set("!", "#", "$", "%", "&", "*", "+", "-", "/", "<", "=", ">", "?", "@", "^", "_", "|", "~")