1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
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;
|
