-- grammar extracted from Pass1T.pgs by PGS, March 29, 1984 6:14:59 pm PST ||CHAIN ||LISTS ||TABLE1 1 id 2 num 3 lnum 4 flnum 5 string 6 lstring 7 char 8 atom 9 , 10 ; 11 : 12 .. 13 => 14 ← 15 = 16 # 17 < 18 > 19 <= 20 >= 21 ~ 22 + 23 - 24 * 25 / 26 ↑ 27 . 28 @ 29 ! 30 '| 31 RECORD 32 POINTER 33 REF 34 VAR 35 LIST 36 ARRAY 37 SEQUENCE 38 DESCRIPTOR 39 PROCEDURE 40 PROC 41 PORT 42 SIGNAL 43 ERROR 44 PROCESS 45 PROGRAM 46 MONITOR 47 DEFINITIONS 48 ZONE 49 RELATIVE 50 LONG 51 TYPE 52 FRAME 53 TO 54 ORDERED 55 UNCOUNTED 56 PAINTED 57 BASE 58 OF 59 PACKED 60 RETURNS 61 SAFE 62 UNSAFE 63 MONITORED 64 OVERLAID 65 COMPUTED 66 MACHINE 67 DEPENDENT 68 DIRECTORY 69 IMPORTS 70 EXPORTS 71 SHARES 72 LOCKS 73 USING 74 PUBLIC 75 PRIVATE 76 CEDAR 77 CHECKED 78 TRUSTED 79 UNCHECKED 80 ENTRY 81 INTERNAL 82 INLINE 83 READONLY 84 CODE 85 ABS 86 ALL 87 AND 88 APPLY 89 CONS 90 MAX 91 MIN 92 MOD 93 NOT 94 OR 95 ORD 96 PRED 97 LENGTH 98 NEW 99 START 100 SUCC 101 VAL 102 FORK 103 JOIN 104 LOOPHOLE 105 NARROW 106 ISTYPE 107 SIZE 108 FIRST 109 LAST 110 NIL 111 TRASH 112 NULL 113 IF 114 THEN 115 ELSE 116 WITH 117 FROM 118 FOR 119 DECREASING 120 IN 121 THROUGH 122 UNTIL 123 WHILE 124 REPEAT 125 FINISHED 126 RETURN 127 EXIT 128 LOOP 129 GOTO 130 GO 131 FREE 132 WAIT 133 RESTART 134 NOTIFY 135 BROADCAST 136 STOP 137 RESUME 138 REJECT 139 CONTINUE 140 RETRY 141 TRANSFER 142 STATE 143 OPEN 144 ENABLE 145 ANY 146 EXITS 147 ) 148 ] 149 } 150 END 151 ENDLOOP 152 ENDCASE 153 ( 154 [ 155 { 156 BEGIN 157 DO 158 SELECT 159 eof ||TABLE2 160 goal 161 module 162 directory 163 identlist 164 cedar 165 proghead 166 trusted 167 checked 168 block 169 defhead 170 defbody 171 includeitem 172 using 173 resident 174 safe 175 class 176 arguments 177 locks 178 interface 179 tilde 180 public 181 definitions 182 imports 183 shares 184 open 185 declist 186 primary 187 lambda 188 ident 189 typeexp 190 moduleitem 191 declaration 192 entry 193 readonly 194 initialization 195 default 196 optsize 197 procaccess 198 idlist' 199 identlist' 200 position 201 exp 202 optbits 203 bounds 204 interval 205 range 206 typeid' 207 typeappl 208 typeid 209 length 210 typecons 211 dependent 212 elementlist 213 element 214 monitored 215 reclist 216 ordered 217 base 218 pointertype 219 packed 220 indextype 221 transfermode 222 arglist 223 returnlist 224 heap 225 pairlist 226 typelist 227 variantpair 228 variantpart 229 pairitem 230 vcasehead 231 variantlist 232 tagtype 233 variantitem 234 idlist 235 defaultopt 236 pointerprefix 237 initvalue 238 inline 239 codelist 240 orderlist 241 statement 242 balstmt 243 casehead 244 casestmtlist 245 basicstmt 246 lhs 247 explist 248 forclause 249 dotest 250 scope 251 doexit 252 optargs 253 transfer 254 free 255 optcatch 256 exits 257 enables 258 statementlist 259 binditem 260 exitlist 261 casestmtitem 262 caselabel 263 caseexpitem 264 exititem 265 casetest 266 optrelation 267 controlid 268 direction 269 catchcase 270 catchany 271 catchlist 272 catchhead 273 lhslist 274 keyitem 275 optexp 276 trash 277 caseexplist 278 disjunct 279 conjunct 280 negation 281 relation 282 sum 283 addop 284 product 285 multop 286 factor 287 relationtail 288 relop 289 prefixop 290 new 291 cons 292 listcons 293 typeop 294 transferop 295 qualifier 296 desclist 297 opttype 298 exports 299 fieldlist 300 includelist 301 modulelist 302 elementlist' 303 bindlist 304 statementlist' 305 casestmtlist' 306 caselabel' 307 exitlist' 308 keylist 309 caseexplist' ||TABLE3 id tokenID num tokenNUM lnum tokenLNUM flnum tokenFLNUM string tokenSTR lstring tokenLSTR char tokenCHAR atom tokenATOM - tokenMINUS . tokenDOT .. tokenDOTS = tokenEQUAL => tokenARROW < tokenLESS <= tokenLE > tokenGREATER >= tokenGE # tokenNE ~ tokenTILDE . initialSymbol ||TABLE4 1 0 goal ::= . module . 2 0 | . module .. 3 1 module ::= directory identlist cedar proghead trusted checked block 4 2 | directory identlist cedar defhead defbody 5 3 includeitem ::= id : FROM string using 6 4 | id : TYPE using 7 4 | id using 8 5 | id : TYPE id using 9 6 cedar ::= CEDAR 10 7 | 11 8 proghead ::= resident safe class arguments locks interface tilde public 12 9 resident ::= 13 10 defhead ::= definitions locks imports shares tilde public 14 11 definitions ::= DEFINITIONS 15 12 defbody ::= BEGIN open declist END 16 12 | BEGIN open declist ; END 17 12 | { open declist } 18 12 | { open declist ; } 19 13 locks ::= LOCKS primary lambda 20 251 | 21 14 lambda ::= USING ident typeexp 22 251 | 23 15 moduleitem ::= id 24 16 | id : id 25 17 declaration ::= identlist public entry readonly typeexp initialization 26 18 | identlist public TYPE tilde public typeexp default 27 19 | identlist public TYPE optsize 28 20 public ::= PUBLIC 29 21 | PRIVATE 30 22 | 31 21 procaccess ::= 32 23 entry ::= ENTRY 33 24 | INTERNAL 34 25 | 35 26 idlist' ::= id 36 28 | id , idlist' 37 26 identlist' ::= id : 38 27 | id position : 39 28 | id , identlist' 40 29 | id position , identlist' 41 30 position ::= ( exp optbits ) 42 31 optbits ::= : bounds 43 251 | 44 31 interval ::= [ bounds ] 45 32 | [ bounds ) 46 33 | ( bounds ] 47 34 | ( bounds ) 48 35 typeexp ::= id 49 250 | typeid 50 250 | typecons 51 35 range ::= id 52 43 | id interval 53 44 | typeid interval 54 250 | interval 55 250 | typeid 56 36 typeid' ::= id . id 57 37 | typeid' . id 58 37 typeappl ::= typeappl . id 59 40 | id length 60 41 | typeid length 61 41 | typeappl length 62 38 typeid ::= id id 63 39 | id typeid 64 250 | typeid' 65 42 typecons ::= interval 66 43 | id interval 67 44 | typeid interval 68 45 | dependent { elementlist } 69 48 | dependent monitored RECORD reclist 70 49 | ordered base pointertype 71 50 | VAR typeexp 72 51 | REF readonly typeexp 73 52 | REF readonly ANY 74 53 | REF 75 54 | LIST OF readonly typeexp 76 55 | packed ARRAY indextype OF typeexp 77 56 | DESCRIPTOR FOR readonly typeexp 78 57 | safe transfermode arguments 79 60 | id RELATIVE typeexp 80 61 | typeid RELATIVE typeexp 81 62 | heap ZONE 82 63 | LONG typeexp 83 64 | FRAME [ id ] 84 65 | id PAINTED typeexp 85 66 | typeid PAINTED typeexp 86 250 | typeappl 87 46 ident ::= id position : 88 206 | id : 89 46 element ::= id ( exp ) 90 47 | ( exp ) 91 206 | id 92 58 safe ::= 93 247 | UNSAFE 94 248 | SAFE 95 59 arglist ::= ANY 96 250 | fieldlist 97 251 | 98 59 returnlist ::= RETURNS ANY 99 250 | RETURNS fieldlist 100 251 | 101 67 monitored ::= MONITORED 102 249 | 103 68 dependent ::= MACHINE DEPENDENT 104 69 | 105 70 reclist ::= [ ] 106 70 | NULL 107 71 | [ pairlist ] 108 71 | [ typelist ] 109 72 | [ pairlist , variantpair ] 110 73 | [ variantpart default ] 111 248 | [ variantpair ] 112 74 variantpair ::= identlist public variantpart default 113 74 pairitem ::= identlist public typeexp default 114 75 variantpart ::= SELECT vcasehead FROM variantlist ENDCASE 115 75 | SELECT vcasehead FROM variantlist , ENDCASE 116 76 | packed SEQUENCE vcasehead OF typeexp 117 77 vcasehead ::= ident public tagtype 118 78 | COMPUTED tagtype 119 79 | OVERLAID tagtype 120 80 tagtype ::= * 121 250 | typeexp 122 81 variantitem ::= idlist => reclist 123 82 typelist ::= typecons default 124 82 | typeid default 125 83 | id 126 84 | id ← defaultopt 127 85 | typecons default , typelist 128 85 | typeid default , typelist 129 86 | id , typelist 130 87 | id ← defaultopt , typelist 131 88 pointertype ::= pointerprefix 132 89 | pointerprefix TO readonly typeexp 133 90 transfermode ::= PROCEDURE 134 90 | PROC 135 91 | PORT 136 92 | SIGNAL 137 93 | ERROR 138 94 | PROCESS 139 95 | PROGRAM 140 96 initialization ::= 141 247 | ← initvalue 142 248 | tilde initvalue 143 97 initvalue ::= procaccess trusted checked inline block 144 98 | CODE 145 99 | procaccess trusted checked MACHINE CODE BEGIN codelist END 146 99 | procaccess trusted checked MACHINE CODE { codelist } 147 166 | trash 148 250 | exp 149 100 trusted ::= 150 101 codelist ::= orderlist 151 102 | codelist ; orderlist 152 103 statement ::= IF exp THEN statement 153 104 | IF exp THEN balstmt ELSE statement 154 105 | casehead casestmtlist ENDCASE => statement 155 250 | basicstmt 156 104 balstmt ::= IF exp THEN balstmt ELSE balstmt 157 105 | casehead casestmtlist ENDCASE => balstmt 158 250 | basicstmt 159 106 basicstmt ::= lhs 160 107 | lhs ← exp 161 108 | [ explist ] ← exp 162 109 | trusted checked block 163 110 | casehead casestmtlist ENDCASE 164 111 | forclause dotest DO scope doexit ENDLOOP 165 112 | EXIT 166 113 | LOOP 167 114 | GOTO id 168 115 | GO TO id 169 116 | RETURN optargs 170 117 | transfer lhs 171 118 | free [ exp optcatch ] 172 119 | WAIT lhs 173 120 | ERROR 174 121 | STOP 175 122 | NULL 176 123 | RESUME optargs 177 124 | REJECT 178 125 | CONTINUE 179 126 | RETRY 180 127 | lhs ← STATE 181 128 | STATE ← exp 182 129 block ::= BEGIN scope exits END 183 129 | { scope exits } 184 130 scope ::= open enables statementlist 185 131 | open enables declist ; statementlist 186 132 binditem ::= exp 187 133 | id : exp 188 133 | id ~ ~ exp 189 134 exits ::= EXITS exitlist 190 249 | 191 135 casestmtitem ::= caselabel => statement 192 135 caseexpitem ::= caselabel => exp 193 135 exititem ::= idlist => statement 194 136 casetest ::= optrelation 195 137 | exp 196 138 caselabel ::= ident typeexp 197 245 | caselabel' 198 138 controlid ::= ident typeexp 199 206 | id 200 139 forclause ::= FOR controlid ← exp , exp 201 140 | FOR controlid direction IN range 202 141 | THROUGH range 203 251 | 204 142 direction ::= DECREASING 205 143 | 206 144 dotest ::= UNTIL exp 207 250 | WHILE exp 208 251 | 209 145 doexit ::= 210 146 | REPEAT exitlist 211 147 | REPEAT exitlist FINISHED => statement 212 147 | REPEAT exitlist FINISHED => statement ; 213 148 enables ::= ENABLE catchcase ; 214 149 | ENABLE catchany ; 215 150 | ENABLE BEGIN catchlist END ; 216 150 | ENABLE { catchlist } ; 217 249 | 218 151 catchlist ::= catchhead catchcase 219 240 | catchhead 220 250 | catchhead catchany 221 250 | catchhead catchany ; 222 152 catchcase ::= lhslist => statement 223 153 optargs ::= [ explist ] 224 154 | 225 248 | lhs 226 155 transfer ::= SIGNAL 227 156 | ERROR 228 157 | RETURN WITH ERROR 229 158 | START 230 159 | RESTART 231 160 | JOIN 232 161 | NOTIFY 233 162 | BROADCAST 234 163 | TRANSFER WITH 235 164 | RETURN WITH 236 165 keyitem ::= id ~ optexp 237 165 | id : optexp 238 166 defaultopt ::= trash 239 167 | exp '| trash 240 241 | 241 250 | exp 242 166 optexp ::= trash 243 250 | exp 244 251 | 245 168 exp ::= IF exp THEN exp ELSE exp 246 169 | casehead caseexplist ENDCASE => exp 247 170 | lhs ← exp 248 171 | [ explist ] ← exp 249 172 | ERROR 250 199 | transferop lhs 251 250 | disjunct 252 173 disjunct ::= disjunct OR conjunct 253 C 250 | conjunct 254 174 conjunct ::= conjunct AND negation 255 C 250 | negation 256 175 negation ::= ~ relation 257 175 | NOT relation 258 C 250 | relation 259 176 relation ::= sum optrelation 260 250 | sum 261 176 sum ::= sum addop product 262 C 250 | product 263 176 product ::= product multop factor 264 C 250 | factor 265 177 optrelation ::= NOT relationtail 266 250 | relationtail 267 178 relationtail ::= IN range 268 250 | relop sum 269 179 relop ::= = 270 180 | # 271 181 | < 272 182 | <= 273 183 | > 274 184 | >= 275 185 addop ::= + 276 186 | - 277 187 multop ::= * 278 188 | / 279 189 | MOD 280 190 factor ::= addop primary 281 C 250 | primary 282 191 primary ::= [ explist ] 283 192 | prefixop [ orderlist ] 284 193 | VAL [ orderlist ] 285 194 | ALL [ orderlist ] 286 195 | new [ typeexp initialization optcatch ] 287 196 | cons [ explist optcatch ] 288 197 | listcons [ explist ] 289 198 | NIL 290 199 | typeop [ typeexp ] 291 201 | SIZE [ typeexp ] 292 202 | SIZE [ typeexp , exp ] 293 203 | ISTYPE [ exp , typeexp ] 294 204 | @ lhs 295 205 | DESCRIPTOR [ desclist ] 296 250 | lhs 297 200 qualifier ::= . prefixop 298 200 | . typeop 299 201 | . SIZE 300 216 | [ explist optcatch ] 301 217 | . id 302 218 | ↑ 303 206 lhs ::= id 304 207 | num 305 207 | string 306 208 | lnum 307 209 | flnum 308 210 | char 309 211 | lstring 310 212 | atom 311 213 | NARROW [ exp opttype optcatch ] 312 214 | LOOPHOLE [ exp opttype ] 313 215 | APPLY [ exp , exp optcatch ] 314 250 | ( exp ) 315 250 | lhs qualifier 316 219 optcatch ::= ! catchlist 317 249 | 318 220 transferop ::= SIGNAL 319 221 | ERROR 320 222 | START 321 223 | JOIN 322 224 | NEW 323 225 | FORK 324 226 prefixop ::= LONG 325 227 | ABS 326 228 | PRED 327 229 | SUCC 328 230 | ORD 329 231 | MIN 330 232 | MAX 331 233 | BASE 332 234 | LENGTH 333 235 typeop ::= CODE 334 236 | FIRST 335 237 | LAST 336 238 | NIL 337 239 desclist ::= exp , exp opttype 338 250 | exp 339 240 directory ::= DIRECTORY ; 340 246 | DIRECTORY includelist ; 341 251 | 342 240 imports ::= IMPORTS 343 246 | IMPORTS modulelist 344 251 | 345 240 pointerprefix ::= POINTER 346 250 | POINTER interval 347 240 free ::= FREE 348 250 | lhs . FREE 349 240 new ::= NEW 350 250 | lhs . NEW 351 240 cons ::= CONS 352 250 | lhs . CONS 353 240 listcons ::= LIST 354 250 | lhs . LIST 355 240 exports ::= EXPORTS 356 246 | EXPORTS modulelist 357 251 | 358 240 fieldlist ::= [ ] 359 246 | [ pairlist ] 360 246 | [ typelist ] 361 241 using ::= USING [ ] 362 250 | USING [ idlist ] 363 251 | 364 242 elementlist ::= 365 250 | elementlist' 366 242 casestmtlist ::= 367 250 | casestmtlist' 368 250 | casestmtlist' ; 369 242 statementlist ::= 370 250 | statementlist' 371 250 | statementlist' ; 372 242 exitlist ::= 373 250 | exitlist' 374 250 | exitlist' ; 375 242 catchhead ::= 376 244 | catchhead catchcase ; 377 242 caseexplist ::= 378 250 | caseexplist' 379 250 | caseexplist' , 380 243 declist ::= declaration 381 244 | declist ; declaration 382 243 pairlist ::= pairitem 383 244 | pairlist , pairitem 384 243 variantlist ::= variantitem 385 244 | variantlist , variantitem 386 243 orderlist ::= optexp 387 244 | orderlist , optexp 388 243 lhslist ::= lhs 389 244 | lhslist , lhs 390 243 includelist ::= includeitem 391 244 | includelist , includeitem 392 243 modulelist ::= moduleitem 393 244 | modulelist , moduleitem 394 243 elementlist' ::= element 395 244 | elementlist' , element 396 243 bindlist ::= binditem 397 244 | bindlist , binditem 398 243 statementlist' ::= statement 399 244 | statementlist' ; statement 400 243 casestmtlist' ::= casestmtitem 401 244 | casestmtlist' ; casestmtitem 402 243 caselabel' ::= casetest 403 244 | caselabel' , casetest 404 243 exitlist' ::= exititem 405 244 | exitlist' ; exititem 406 243 keylist ::= keyitem 407 244 | keylist , keyitem 408 243 caseexplist' ::= caseexpitem 409 244 | caseexplist' , caseexpitem 410 245 identlist ::= identlist' 411 245 idlist ::= idlist' 412 245 explist ::= orderlist 413 245 | keylist 414 246 open ::= OPEN bindlist ; 415 251 | 416 247 class ::= PROGRAM 417 248 | MONITOR 418 247 casehead ::= SELECT exp FROM 419 248 | WITH binditem SELECT optexp FROM 420 248 readonly ::= READONLY 421 249 | 422 248 ordered ::= ORDERED 423 249 | 424 248 base ::= BASE 425 249 | 426 248 packed ::= PACKED 427 249 | 428 248 heap ::= UNCOUNTED 429 249 | 430 248 inline ::= INLINE 431 249 | 432 250 arguments ::= arglist returnlist 433 250 interface ::= imports exports shares 434 250 tilde ::= ~ 435 250 | = 436 250 shares ::= SHARES idlist 437 251 | 438 250 default ::= ← defaultopt 439 251 | 440 250 optsize ::= [ exp ] 441 251 | 442 250 bounds ::= exp .. exp 443 250 length ::= [ exp ] 444 250 indextype ::= typeexp 445 251 | 446 250 catchany ::= ANY => statement 447 250 trash ::= TRASH 448 250 | NULL 449 250 opttype ::= , typeexp 450 251 | 451 252 checked ::= 452 253 | CHECKED 453 254 | TRUSTED 454 255 | UNCHECKED