June 2018 Update

Task/Unix-ls/Standard-ML/unix-ls-1.ml

@@ -0,0 +1 @@
+OS.Process.system "ls -a"

Task/Unix-ls/Standard-ML/unix-ls-2.ml

@@ -0,0 +1,15 @@
+local   (* make a sort function *)
+  val rec insert = fn s :string =>fn [] => [s]
+	| ll as h::t => if s<=h then s::ll else h::insert s t;
+in
+  val rec sort = fn [] => [] | h::t => insert h (sort t)
+end;
+
+open Posix.FileSys ;
+val istream = opendir "." ;
+val ll =  ref [readdir istream] ;
+while ( isSome (hd (!ll)) ) do  ( ll:=readdir istream :: !ll );
+val result = List.map valOf (tl (!ll));
+closedir istream ;
+
+sort result;