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
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
-- PSL - Disp nodes
-- Copyright (C) 2002-2016 Tristan Gingold
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License as published by
-- the Free Software Foundation, either version 2 of the License, or
-- (at your option) any later version.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <gnu.org/licenses>.
with Simple_IO; use Simple_IO;
with Utils_IO; use Utils_IO;
with Types; use Types;
with PSL.Types;
with PSL.Prints; use PSL.Prints;
package body PSL.Disp_NFAs is
procedure Disp_State (S : NFA_State) is
Str : constant String := Int32'Image (Get_State_Label (S));
begin
Put (Str (2 .. Str'Last));
end Disp_State;
procedure Disp_Head (Name : String) is
begin
Put ("digraph ");
Put (Name);
Put_Line (" {");
Put_Line (" rankdir=LR;");
end Disp_Head;
procedure Disp_Tail is
begin
Put_Line ("}");
end Disp_Tail;
procedure Disp_Body (N : NFA) is
S, F : NFA_State;
T : NFA_Edge;
begin
S := Get_Start_State (N);
F := Get_Final_State (N);
if S /= No_State then
if S = F then
Put (" node [shape = doublecircle, style = bold];");
else
Put (" node [shape = circle, style = bold];");
end if;
Put (" /* Start: */ ");
Disp_State (S);
Put_Line (";");
end if;
if F /= No_State and then F /= S then
Put (" node [shape = doublecircle, style = solid];");
Put (" /* Final: */ ");
Disp_State (F);
Put_Line (";");
end if;
Put_Line (" node [shape = circle, style = solid];");
if Get_Epsilon_NFA (N) then
Put (" ");
Disp_State (Get_Start_State (N));
Put (" -> ");
Disp_State (Get_Final_State (N));
Put_Line (" [ label = ""*""]");
end if;
S := Get_First_State (N);
while S /= No_State loop
T := Get_First_Src_Edge (S);
if T = No_Edge then
if Get_First_Dest_Edge (S) = No_Edge then
Put (" ");
Disp_State (S);
Put_Line (";");
end if;
else
loop
Put (" ");
Disp_State (S);
Put (" -> ");
Disp_State (Get_Edge_Dest (T));
Put (" [ label = """);
Print_Expr (Get_Edge_Expr (T));
Put ('"');
if True then
Put (" /* Node =");
Put (Node'Image (Get_Edge_Expr (T)));
Put (" */");
end if;
if True then
Put (" /* Edge =");
Put (NFA_Edge'Image (T));
Put (" */");
end if;
Put_Line (" ];");
T := Get_Next_Src_Edge (T);
exit when T = No_Edge;
end loop;
end if;
S := Get_Next_State (S);
end loop;
end Disp_Body;
procedure Disp_NFA (N : NFA; Name : String := "nfa") is
begin
Disp_Head (Name);
Disp_Body (N);
Disp_Tail;
end Disp_NFA;
procedure Debug_NFA (N : NFA) is
begin
Labelize_States_Debug (N);
Disp_Head ("nfa");
Disp_Body (N);
Disp_Tail;
end Debug_NFA;
pragma Unreferenced (Debug_NFA);
procedure Dump_NFA (N : NFA)
is
use PSL.Types;
procedure Disp_State (S : NFA_State) is
begin
Put_Trim (Int32'Image (Get_State_Label (S)));
Put ("[");
Put_Trim (NFA_State'Image (S));
Put ("]");
end Disp_State;
S : NFA_State;
E : NFA_Edge;
begin
if N = No_NFA then
return;
end if;
Put ("start: ");
Disp_State (Get_Start_State (N));
Put (", final: ");
Disp_State (Get_Final_State (N));
Put (", active: ");
S := Get_Active_State (N);
if S = No_State then
Put ("-");
else
Disp_State (S);
end if;
if Get_Epsilon_NFA (N) then
Put (", epsilon");
end if;
Put (" notation: label[state]");
New_Line;
S := Get_First_State (N);
while S /= No_State loop
E := Get_First_Src_Edge (S);
while E /= No_Edge loop
Put_Trim (NFA_Edge'Image (E));
Put (": ");
Disp_State (S);
Put (" -> ");
Disp_State (Get_Edge_Dest (E));
Put (": ");
Print_Expr (Get_Edge_Expr (E));
New_Line;
E := Get_Next_Src_Edge (E);
end loop;
S := Get_Next_State (S);
end loop;
end Dump_NFA;
end PSL.Disp_NFAs;
|
