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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
Terminals unused in grammar
ELSE
FI
IF
IN
LET
LOOP
POOL
THEN
WHILE
CASE
ESAC
OF
DARROW
NEW
ISVOID
STR_CONST
INT_CONST
BOOL_CONST
OBJECTID
ASSIGN
NOT
LE
ERROR
Grammar
0 $accept: program $end
1 program: class_list
2 class_list: class
3 | class_list class
4 class: CLASS TYPEID '{' dummy_feature_list '}' ';'
5 | CLASS TYPEID INHERITS TYPEID '{' dummy_feature_list '}' ';'
6 dummy_feature_list: %empty
Terminals, with rules where they appear
$end (0) 0
';' (59) 4 5
'{' (123) 4 5
'}' (125) 4 5
error (256)
CLASS (258) 4 5
ELSE (259)
FI (260)
IF (261)
IN (262)
INHERITS (263) 5
LET (264)
LOOP (265)
POOL (266)
THEN (267)
WHILE (268)
CASE (269)
ESAC (270)
OF (271)
DARROW (272)
NEW (273)
ISVOID (274)
STR_CONST <symbol> (275)
INT_CONST <symbol> (276)
BOOL_CONST <boolean> (277)
TYPEID <symbol> (278) 4 5
OBJECTID <symbol> (279)
ASSIGN (280)
NOT (281)
LE (282)
ERROR (283)
Nonterminals, with rules where they appear
$accept (32)
on left: 0
program <program> (33)
on left: 1
on right: 0
class_list <classes> (34)
on left: 2 3
on right: 1 3
class <class_> (35)
on left: 4 5
on right: 2 3
dummy_feature_list <features> (36)
on left: 6
on right: 4 5
State 0
0 $accept: . program $end
CLASS shift, and go to state 1
program go to state 2
class_list go to state 3
class go to state 4
State 1
4 class: CLASS . TYPEID '{' dummy_feature_list '}' ';'
5 | CLASS . TYPEID INHERITS TYPEID '{' dummy_feature_list '}' ';'
TYPEID shift, and go to state 5
State 2
0 $accept: program . $end
$end shift, and go to state 6
State 3
1 program: class_list .
3 class_list: class_list . class
CLASS shift, and go to state 1
$default reduce using rule 1 (program)
class go to state 7
State 4
2 class_list: class .
$default reduce using rule 2 (class_list)
State 5
4 class: CLASS TYPEID . '{' dummy_feature_list '}' ';'
5 | CLASS TYPEID . INHERITS TYPEID '{' dummy_feature_list '}' ';'
INHERITS shift, and go to state 8
'{' shift, and go to state 9
State 6
0 $accept: program $end .
$default accept
State 7
3 class_list: class_list class .
$default reduce using rule 3 (class_list)
State 8
5 class: CLASS TYPEID INHERITS . TYPEID '{' dummy_feature_list '}' ';'
TYPEID shift, and go to state 10
State 9
4 class: CLASS TYPEID '{' . dummy_feature_list '}' ';'
$default reduce using rule 6 (dummy_feature_list)
dummy_feature_list go to state 11
State 10
5 class: CLASS TYPEID INHERITS TYPEID . '{' dummy_feature_list '}' ';'
'{' shift, and go to state 12
State 11
4 class: CLASS TYPEID '{' dummy_feature_list . '}' ';'
'}' shift, and go to state 13
State 12
5 class: CLASS TYPEID INHERITS TYPEID '{' . dummy_feature_list '}' ';'
$default reduce using rule 6 (dummy_feature_list)
dummy_feature_list go to state 14
State 13
4 class: CLASS TYPEID '{' dummy_feature_list '}' . ';'
';' shift, and go to state 15
State 14
5 class: CLASS TYPEID INHERITS TYPEID '{' dummy_feature_list . '}' ';'
'}' shift, and go to state 16
State 15
4 class: CLASS TYPEID '{' dummy_feature_list '}' ';' .
$default reduce using rule 4 (class)
State 16
5 class: CLASS TYPEID INHERITS TYPEID '{' dummy_feature_list '}' . ';'
';' shift, and go to state 17
State 17
5 class: CLASS TYPEID INHERITS TYPEID '{' dummy_feature_list '}' ';' .
$default reduce using rule 5 (class)
|
