src/Pure/General/scan.ML
changeset 14955 08ee855c1d94
parent 14927 66d797e1b950
child 14981 e73f8140af78
--- a/src/Pure/General/scan.ML	Wed Jun 16 20:36:43 2004 +0200
+++ b/src/Pure/General/scan.ML	Wed Jun 16 20:37:00 2004 +0200
@@ -160,7 +160,7 @@
           if y = x then drop_prefix ys xs else raise FAIL None;
   in (ys, drop_prefix ys xs) end;
 
-fun this_string s = this (explode s) >> (K s);
+fun this_string s = this (explode s) >> K s;  (*primitive string -- no symbols yet!*)
 
 fun any _ [] = raise MORE None
   | any pred (lst as x :: xs) =
@@ -377,9 +377,7 @@
     | Some res => res)
   end;
 
-
 end;
 
-
 structure BasicScan: BASIC_SCAN = Scan;
 open BasicScan;