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-- 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;
Scratch : World := Item;
Counter : Positive := 1;
begin
if not Scratch.Has_State (Counter) then
return "States: N/A" & Latin.LF;
end if;
loop
SU.Append (Result, "State#" & Image (Counter) & ":" & Latin.LF);
SU.Append (Result, Image (Scratch.Possibles.Constant_Reference (Counter)));
Counter := Counter + 1;
exit when not Scratch.Has_State (Counter);
end loop;
return SU.Slice (Result, 1, SU.Length (Result) - 1);
end Image;
end Kompsos.Pretty_Print;
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