src/Pure/ML-Systems/polyml_old_basis.ML

--- a/src/Pure/ML-Systems/polyml_old_basis.ML	Sun May 31 21:59:33 2009 -0700
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,29 +0,0 @@
-(*  Title:      Pure/ML-Systems/polyml_old_basis.ML
-
-Fixes for the old SML basis library (before Poly/ML 4.2.0).
-*)
-
-structure String =
-struct
-  fun isSuffix s1 s2 =
-    let val n1 = size s1 and n2 = size s2
-    in if n1 = n2 then s1 = s2 else n1 <= n2 andalso String.substring (s2, n2 - n1, n1) = s1 end;
-  fun isSubstring s1 s2 =
-    String.isPrefix s1 s2 orelse
-      size s1 < size s2 andalso isSubstring s1 (String.extract (s2, 1, NONE)); 
-  open String;
-end;
-
-structure Substring =
-struct
-  open Substring;
-  val full = all;
-end;
-
-structure TextIO =
-struct
-  open TextIO;
-  fun inputLine is =
-    let val s = TextIO.inputLine is
-    in if s = "" then NONE else SOME s end;
-end;