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src/Pure/Syntax/lexicon.ML
changeset 67522 9e712280cc37
parent 67440 e5ba0ca1e465
child 67532 71b36ff8f94d 
--- a/src/Pure/Syntax/lexicon.ML	Sun Jan 28 16:09:00 2018 +0100
+++ b/src/Pure/Syntax/lexicon.ML	Sun Jan 28 19:28:52 2018 +0100
@@ -406,7 +406,7 @@
   let
     val cs = Symbol.explode str;
     val (intpart, fracpart) =
-      (case take_prefix Symbol.is_digit cs of
+      (case chop_prefix Symbol.is_digit cs of
         (intpart, "." :: fracpart) => (intpart, fracpart)
       | _ => raise Fail "read_float");
   in
isabelle