Тестирование данного способа показывает, что построенный
таким образом синтаксический анализатор успешно реализует LL(1)-метод анализа.
Следующий этап – построение для данной грамматики диаграммы состояний:
 |
По диаграмме состояний строим таблицу разбора:
|
Состояние |
Терминалы |
jump |
accept |
stack |
return |
error |
|
1 |
while |
25 |
0 |
0 |
0 |
0 |
|
2 |
id |
29 |
0 |
0 |
0 |
1 |
|
3 |
while |
35 |
0 |
0 |
0 |
0 |
|
4 |
id |
39 |
0 |
0 |
0 |
0 |
|
5 |
eos |
45 |
0 |
0 |
0 |
1 |
|
6 |
while |
46 |
0 |
0 |
0 |
0 |
|
7 |
id |
49 |
0 |
0 |
0 |
1 |
|
8 |
while |
54 |
0 |
0 |
0 |
0 |
|
9 |
id |
57 |
0 |
0 |
0 |
0 |
|
10 |
eos |
62 |
0 |
0 |
0 |
1 |
|
11 |
id |
63 |
0 |
0 |
0 |
0 |
|
12 |
const |
67 |
0 |
0 |
0 |
1 |
|
13 |
id |
71 |
0 |
0 |
0 |
0 |
|
14 |
const |
73 |
0 |
0 |
0 |
1 |
|
15 |
+ |
75 |
0 |
0 |
0 |
0 |
|
16 |
- |
77 |
0 |
0 |
0 |
0 |
|
17 |
; |
79 |
0 |
0 |
0 |
1 |
|
18 |
< |
82 |
0 |
0 |
0 |
0 |
|
19 |
> |
84 |
0 |
0 |
0 |
0 |
|
20 |
+ |
86 |
0 |
0 |
0 |
0 |
|
21 |
- |
88 |
0 |
0 |
0 |
0 |
|
22 |
) |
90 |
0 |
0 |
0 |
1 |
|
23 |
id |
80 |
0 |
0 |
0 |
0 |
|
24 |
const |
81 |
0 |
0 |
0 |
1 |
|
25 |
while |
26 |
1 |
0 |
0 |
1 |
|
26 |
( |
27 |
1 |
0 |
0 |
1 |
|
27 |
id,const |
11 |
0 |
1 |
0 |
1 |
|
28 |
while,id,eos |
3 |
0 |
0 |
0 |
1 |
|
29 |
id |
30 |
1 |
0 |
0 |
1 |
|
30 |
= |
31 |
1 |
0 |
0 |
1 |
|
31 |
id,const |
13 |
0 |
1 |
0 |
1 |
|
32 |
; |
33 |
1 |
0 |
0 |
1 |
|
33 |
while,id,eos |
8 |
0 |
1 |
0 |
1 |
|
34 |
while,id,eos |
3 |
0 |
0 |
0 |
1 |
|
35 |
while |
36 |
1 |
0 |
0 |
1 |
|
36 |
( |
37 |
1 |
0 |
0 |
1 |
|
37 |
id,const |
11 |
0 |
1 |
0 |
1 |
|
38 |
while,id,eos |
3 |
0 |
0 |
0 |
1 |
|
39 |
id |
40 |
1 |
0 |
0 |
1 |
|
40 |
= |
41 |
1 |
0 |
0 |
1 |
|
41 |
id,const |
13 |
0 |
1 |
0 |
1 |
|
42 |
; |
43 |
1 |
0 |
0 |
1 |
|
43 |
while,id,eos |
8 |
0 |
1 |
0 |
1 |
|
44 |
while,id,eos |
3 |
0 |
0 |
0 |
1 |
|
45 |
eos |
0 |
0 |
0 |
1 |
1 |
|
46 |
while |
47 |
1 |
0 |
0 |
1 |
|
47 |
( |
48 |
1 |
0 |
0 |
1 |
|
48 |
id,const |
11 |
0 |
0 |
0 |
1 |
|
49 |
id |
50 |
1 |
0 |
0 |
1 |
|
50 |
= |
51 |
1 |
0 |
0 |
1 |
|
51 |
id,const |
13 |
0 |
1 |
0 |
1 |
|
52 |
; |
53 |
1 |
0 |
0 |
1 |
|
53 |
while,id,eos |
8 |
0 |
0 |
0 |
1 |
|
54 |
while |
55 |
1 |
0 |
0 |
1 |
|
55 |
( |
56 |
1 |
0 |
0 |
1 |
|
56 |
id,const |
11 |
0 |
0 |
0 |
1 |
|
57 |
id |
58 |
1 |
0 |
0 |
1 |
|
58 |
= |
59 |
1 |
0 |
0 |
1 |
|
59 |
id,const |
13 |
0 |
1 |
0 |
1 |
|
60 |
; |
61 |
1 |
0 |
0 |
1 |
|
61 |
while,id,eos |
8 |
0 |
0 |
0 |
1 |
|
62 |
eos |
0 |
0 |
0 |
1 |
1 |
|
63 |
id |
64 |
1 |
0 |
0 |
1 |
|
64 |
<,>,+,-,) |
18 |
0 |
1 |
0 |
1 |
|
65 |
) |
66 |
1 |
0 |
0 |
1 |
|
66 |
while,id |
6 |
0 |
0 |
0 |
1 |
|
67 |
const |
68 |
1 |
0 |
0 |
1 |
|
68 |
<,>,+,-,) |
18 |
0 |
1 |
0 |
1 |
|
69 |
) |
70 |
1 |
0 |
0 |
1 |
|
70 |
while,id |
6 |
0 |
0 |
0 |
1 |
|
71 |
id |
72 |
1 |
0 |
0 |
1 |
|
72 |
+,-,; |
15 |
0 |
0 |
0 |
1 |
|
73 |
const |
74 |
1 |
0 |
0 |
1 |
|
74 |
+,-,; |
15 |
0 |
0 |
0 |
1 |
|
75 |
+ |
76 |
1 |
0 |
0 |
1 |
|
76 |
id,const |
23 |
0 |
0 |
0 |
1 |
|
77 |
- |
78 |
1 |
0 |
0 |
1 |
|
78 |
id,const |
23 |
0 |
0 |
0 |
1 |
|
79 |
; |
0 |
0 |
0 |
1 |
1 |
|
80 |
id |
0 |
1 |
0 |
1 |
1 |
|
81 |
const |
0 |
1 |
0 |
1 |
1 |
|
82 |
< |
83 |
1 |
0 |
0 |
1 |
|
83 |
id,const |
23 |
0 |
0 |
0 |
1 |
|
84 |
> |
85 |
1 |
0 |
0 |
1 |
|
85 |
id,const |
23 |
0 |
0 |
0 |
1 |
|
86 |
+ |
87 |
1 |
0 |
0 |
1 |
|
87 |
id,const |
23 |
0 |
0 |
0 |
1 |
|
88 |
- |
89 |
1 |
0 |
0 |
1 |
|
89 |
id,const |
23 |
0 |
0 |
0 |
1 |
|
90 |
) |
0 |
0 |
0 |
1 |
1 |
Уважаемый посетитель!
Чтобы распечатать файл, скачайте его (в формате Word).
Ссылка на скачивание - внизу страницы.