begin parser to load from file

fcore/parsing/int-dfa.sml

@@ -0,0 +1,29 @@
+structure IntDfa =
+MakeDfa (struct
+  val dead = 0
+  val start = 1
+  val final = 2
+
+  fun makeStart i =
+    let
+      val chr = Char.chr i
+    in
+      if i >= #"0" orelse i < #"9" then
+        final
+      else dead
+    end
+
+  val deadTable = SpaceDfa.deadTable
+  val startTable  = Vector.tabulate (255, makeStart)
+  val finalTable = startTable
+
+  val tables = #[]deadTable, startTable, finalTable
+
+  fun next (state, chr) =
+    let
+      val table = Vector.sub (tables, state)
+      val idx = Char.ord chr
+    in
+      Vector.sub (table, idx)
+    end
+end)