diff -r cab2719398a7 -r d9f5f01faa1b src/Pure/Syntax/lexicon.ML
--- a/src/Pure/Syntax/lexicon.ML	Fri Sep 17 20:56:32 2010 +0200
+++ b/src/Pure/Syntax/lexicon.ML	Fri Sep 17 21:04:56 2010 +0200
@@ -66,7 +66,7 @@
   val terminals: string list
   val is_terminal: string -> bool
   val report_token: Proof.context -> token -> unit
-  val report_token_range: Proof.context -> token -> unit
+  val reported_token_range: Proof.context -> token -> string
   val matching_tokens: token * token -> bool
   val valued_token: token -> bool
   val predef_term: string -> token option
@@ -189,10 +189,10 @@
 fun report_token ctxt (Token (kind, _, (pos, _))) =
   Context_Position.report ctxt pos (token_kind_markup kind);
 
-fun report_token_range ctxt tok =
+fun reported_token_range ctxt tok =
   if is_proper tok
-  then Context_Position.report ctxt (pos_of_token tok) Markup.token_range
-  else ();
+  then Context_Position.reported_text ctxt (pos_of_token tok) Markup.token_range ""
+  else "";
 
 
 (* matching_tokens *)