Import Upstream version 20180207
[hcoop/debian/mlton.git] / mlyacc / examples / pascal / pascal.grm
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1%%
2
3%name Pascal
4%term
5 YAND | YARRAY | YBEGIN | YCASE |
6 YCONST | YDIV | YDO | YDOTDOT |
7 YTO | YELSE | YEND | YFILE |
8 YFOR | YFORWARD | YPROCEDURE | YGOTO |
9 YID | YIF | YIN | YINT |
10 YLABEL | YMOD | YNOT | YNUMB |
11 YOF | YOR | YPACKED | YNIL |
12 YFUNCTION | YPROG | YRECORD | YREPEAT |
13 YSET | YSTRING | YTHEN | YDOWNTO |
14 YTYPE | YUNTIL | YVAR | YWHILE |
15 YWITH | YBINT | YOCT | YHEX |
16 YCASELAB | YILLCH | YEXTERN |
17 YDOT | YLPAR | YRPAR | YSEMI | YCOMMA | YCOLON | YCARET | YLBRA |
18 YRBRA | YTILDE |
19 YLESS | YEQUAL | YGREATER
20| YPLUS | YMINUS | YBAR
21| UNARYSIGN
22| YSTAR | YSLASH | YAMP
23| EOF
24
25%eop EOF
26%pos int
27%pure
28%noshift EOF
29
30%nonassoc YLESS YEQUAL YGREATER YIN
31%left YPLUS YMINUS YOR YBAR
32%left UNARYSIGN
33%left YSTAR YSLASH YDIV YMOD YAND YAMP
34%left YNOT
35
36%nonterm goal | prog_hedr | block | decls | decl | labels | label_decl |
37const_decl | type_decl | var_decl | proc_decl | pheadres | phead |
38porf | params | param | ftype | param_list | const | number | const_list |
39type' | simple_type | struct_type | simple_type_list | field_list |
40fixed_part | field | variant_part | variant_list | variant | stat_list |
41stat_lsth | cstat_list | cstat | stat | assign | expr | element_list |
42element | variable | qual_var | wexpr | octhex | expr_list | wexpr_list |
43relop | addop | divop | negop | var_list | id_list | const_id | type_id |
44var_id | array_id | ptr_id | record_id | field_id | func_id
45| begin
46
47%keyword
48 YAND YARRAY YBEGIN YCASE
49 YCONST YDIV YDO
50 YTO YELSE YEND YFILE
51 YFOR YFORWARD YPROCEDURE YGOTO
52 YIF YIN
53 YLABEL YMOD YNOT
54 YOF YOR YPACKED YNIL
55 YFUNCTION YPROG YRECORD YREPEAT
56 YSET YSTRING YTHEN YDOWNTO
57 YTYPE YUNTIL YVAR YWHILE
58 YWITH YOCT YHEX
59 YEXTERN YAMP
60
61%prefer YID YSEMI YCOMMA YLBRA
62
63%subst YCOMMA for YSEMI | YSEMI for YCOMMA
64
65%%
66begin: goal ()
67goal: prog_hedr decls block YDOT ()
68| decls ()
69prog_hedr: YPROG YID YLPAR id_list YRPAR YSEMI ()
70| YPROG YID YSEMI ()
71block: YBEGIN stat_list YEND ()
72decls: decls decl ()
73| ()
74decl: labels ()
75| const_decl ()
76| type_decl ()
77| var_decl ()
78| proc_decl ()
79labels: YLABEL label_decl YSEMI ()
80label_decl: YINT ()
81| label_decl YCOMMA YINT ()
82const_decl: YCONST YID YEQUAL const YSEMI ()
83| const_decl YID YEQUAL const YSEMI ()
84| YCONST YID YEQUAL YID YSEMI ()
85| const_decl YID YEQUAL YID YSEMI ()
86type_decl: YTYPE YID YEQUAL type' YSEMI ()
87| type_decl YID YEQUAL type' YSEMI ()
88var_decl: YVAR id_list YCOLON type' YSEMI ()
89| var_decl id_list YCOLON type' YSEMI ()
90proc_decl: phead YFORWARD YSEMI ()
91| phead YEXTERN YSEMI ()
92| pheadres decls block YSEMI ()
93pheadres: phead ()
94phead: porf YID params ftype YSEMI ()
95porf: YPROCEDURE ()
96| YFUNCTION ()
97params: YLPAR param_list YRPAR ()
98| ()
99param: id_list YCOLON type' ()
100| YVAR id_list YCOLON type' ()
101| YFUNCTION id_list params ftype ()
102| YPROCEDURE id_list params ftype ()
103ftype: YCOLON type' ()
104| ()
105param_list: param ()
106| param_list YSEMI param ()
107const: YSTRING ()
108| number ()
109| YPLUS number ()
110| YMINUS number ()
111| YPLUS YID ()
112| YMINUS YID ()
113number: YINT ()
114| YBINT ()
115| YNUMB ()
116const_list: const ()
117| const_list YCOMMA const ()
118| YID ()
119| const_list YCOMMA YID ()
120type': simple_type ()
121| YCARET YID ()
122| struct_type ()
123| YPACKED struct_type ()
124simple_type: type_id ()
125| YLPAR id_list YRPAR ()
126| const YDOTDOT const ()
127| YID YDOTDOT const ()
128| const YDOTDOT YID ()
129| YID YDOTDOT YID ()
130struct_type: YARRAY YLBRA simple_type_list YRBRA YOF type' ()
131| YFILE YOF type' ()
132| YSET YOF simple_type ()
133| YRECORD field_list YEND ()
134simple_type_list: simple_type ()
135| simple_type_list YCOMMA simple_type ()
136field_list: fixed_part variant_part ()
137fixed_part: field ()
138| fixed_part YSEMI field ()
139field: ()
140| id_list YCOLON type' ()
141variant_part: ()
142| YCASE type_id YOF variant_list ()
143| YCASE YID YCOLON type_id YOF variant_list ()
144variant_list: variant ()
145| variant_list YSEMI variant ()
146variant: ()
147| const_list YCOLON YLPAR field_list YRPAR ()
148stat_list: stat ()
149| stat_lsth stat ()
150stat_lsth: stat_list YSEMI ()
151cstat_list: cstat ()
152| cstat_list YSEMI cstat ()
153cstat: const_list YCOLON stat ()
154| YCASELAB stat ()
155| ()
156stat: ()
157| YINT YCOLON stat ()
158| YID ()
159| YID YLPAR wexpr_list YRPAR ()
160| assign ()
161| YBEGIN stat_list YEND ()
162| YCASE expr YOF cstat_list YEND ()
163| YWITH var_list YDO stat ()
164| YWHILE expr YDO stat ()
165| YREPEAT stat_list YUNTIL expr ()
166| YFOR assign YTO expr YDO stat ()
167| YFOR assign YDOWNTO expr YDO stat ()
168| YGOTO YINT ()
169| YIF expr YTHEN stat ()
170| YIF expr YTHEN stat YELSE stat ()
171assign: variable YCOLON YEQUAL expr ()
172| YID YCOLON YEQUAL expr ()
173expr: expr relop expr %prec YLESS ()
174| YPLUS expr %prec UNARYSIGN ()
175| YMINUS expr %prec UNARYSIGN ()
176| expr addop expr %prec YPLUS ()
177| expr divop expr %prec YSTAR ()
178| YNIL ()
179| YSTRING ()
180| YINT ()
181| YBINT ()
182| YNUMB ()
183| variable ()
184| YID ()
185| YID YLPAR wexpr_list YRPAR ()
186| YLPAR expr YRPAR ()
187| negop expr %prec YNOT ()
188| YLBRA element_list YRBRA ()
189| YLBRA YRBRA ()
190element_list: element ()
191| element_list YCOMMA element ()
192element: expr ()
193| expr YDOTDOT expr ()
194variable: qual_var ()
195qual_var: YID YLBRA expr_list YRBRA ()
196| qual_var YLBRA expr_list YRBRA ()
197| YID YDOT field_id ()
198| qual_var YDOT field_id ()
199| YID YCARET ()
200| qual_var YCARET ()
201wexpr: expr ()
202| expr YCOLON expr ()
203| expr YCOLON expr YCOLON expr ()
204| expr octhex ()
205| expr YCOLON expr octhex ()
206octhex: YOCT ()
207| YHEX ()
208expr_list: expr ()
209| expr_list YCOMMA expr ()
210wexpr_list: wexpr ()
211| wexpr_list YCOMMA wexpr ()
212relop: YEQUAL ()
213| YLESS ()
214| YGREATER ()
215| YLESS YGREATER ()
216| YLESS YEQUAL ()
217| YGREATER YEQUAL ()
218| YIN ()
219addop: YPLUS ()
220| YMINUS ()
221| YOR ()
222| YBAR ()
223divop: YSTAR ()
224| YSLASH ()
225| YDIV ()
226| YMOD ()
227| YAND ()
228| YAMP ()
229negop: YNOT ()
230| YTILDE ()
231var_list: variable ()
232| var_list YCOMMA variable ()
233| YID ()
234| var_list YCOMMA YID ()
235id_list: YID ()
236| id_list YCOMMA YID ()
237const_id: YID ()
238type_id: YID ()
239var_id: YID ()
240array_id: YID ()
241ptr_id: YID ()
242record_id: YID ()
243field_id: YID ()
244func_id: YID ()