1 files changed, 142 insertions, 0 deletions
diff --git a/src/kompsos-pretty_print.adb b/src/kompsos-pretty_print.adb
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+++ b/src/kompsos-pretty_print.adb
@@ -0,0 +1,142 @@
+
+
+--  Programmed by Jedidiah Barber
+--  Licensed under the Sunset License v1.0
+
+--  See license.txt for further details
+
+
+with
+
+    Ada.Characters.Latin_1,
+    Ada.Strings.Fixed;
+
+
+package body Kompsos.Pretty_Print is
+
+
+    package Latin renames Ada.Characters.Latin_1;
+    package Str   renames Ada.Strings;
+
+
+
+
+    function Image
+           (Item : in Integer)
+        return String is
+    begin
+        return Str.Fixed.Trim (Integer'Image (Item), Str.Left);
+    end Image;
+
+
+    function Image
+           (Item : in ID_Number)
+        return String is
+    begin
+        return Str.Fixed.Trim (ID_Number'Image (Item), Str.Left);
+    end Image;
+
+
+
+
+    function Image
+           (Item : in Variable)
+        return String is
+    begin
+        return "Var#" & Image (Item.Ident) &
+           (if SU.Length (Item.Name) /= 0
+            then "/" & SU.To_String (Item.Name)
+            else "");
+    end Image;
+
+
+
+
+    function Image
+           (Item : in Term)
+        return String
+    is
+        function Bare
+               (Item : in Term)
+            return String is
+        begin
+            case Item.Actual.Kind is
+            when Atom_Term =>
+                return Element_Image (Item.Actual.Value);
+            when Var_Term =>
+                return Image (Item.Actual.Refer);
+            when Pair_Term =>
+                if Item.Actual.Right.Actual = null then
+                    return Image (Item.Actual.Left);
+                else
+                    return Image (Item.Actual.Left) & " " & Bare (Item.Actual.Right);
+                end if;
+            end case;
+        end Bare;
+    begin
+        if Item.Actual = null then
+            return "()";
+        elsif Item.Actual.Kind = Pair_Term then
+            return "(" & Bare (Item) & ")";
+        else
+            return Bare (Item);
+        end if;
+    end Image;
+
+
+
+
+    function Image
+           (Item : in State)
+        return String
+    is
+        Result : SU.Unbounded_String;
+        My_Var : Variable;
+    begin
+        SU.Append (Result, Latin.HT & "Variables:");
+        if Item.LVars.Is_Empty then
+            SU.Append (Result, " N/A" & Latin.LF);
+        else
+            SU.Append (Result, Latin.LF);
+            for Iter in Item.LVars.Iterate loop
+                My_Var := (Ident => Name_Maps.Key (Iter), Name => Name_Maps.Element (Iter));
+                SU.Append (Result, Latin.HT & Latin.HT & Image (My_Var) & Latin.LF);
+            end loop;
+        end if;
+        SU.Append (Result, Latin.HT & "Substitution:");
+        if Item.Subst.Is_Empty then
+            SU.Append (Result, " N/A" & Latin.LF);
+        else
+            SU.Append (Result, Latin.LF);
+            for Iter in Item.Subst.Iterate loop
+                SU.Append (Result, Latin.HT & Latin.HT &
+                    Image (Binding_Maps.Key (Iter)) & " => " &
+                    Image (Binding_Maps.Element (Iter)) & Latin.LF);
+            end loop;
+        end if;
+        return -Result;
+    end Image;
+
+
+
+
+    function Image
+           (Item : in World)
+        return String
+    is
+        Result : SU.Unbounded_String;
+    begin
+        if Item.Possibles.Is_Empty then
+            return "States: N/A" & Latin.LF;
+        end if;
+        for Index in Integer range Item.Possibles.First_Index .. Item.Possibles.Last_Index loop
+            SU.Append (Result, "State#" & Image (Index) & ":" & Latin.LF);
+            SU.Append (Result, Image (Item.Possibles.Constant_Reference (Index)));
+        end loop;
+        return SU.Slice (Result, 1, SU.Length (Result) - 1);
+    end Image;
+
+
+end Kompsos.Pretty_Print;
+
+