| 1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | |
| 3 | static char sccsid[] = "@(#)pcproc.c 1.2 %G%"; |
| 4 | |
| 5 | #include "whoami.h" |
| 6 | #ifdef PC |
| 7 | /* |
| 8 | * and to the end of the file |
| 9 | */ |
| 10 | #include "0.h" |
| 11 | #include "tree.h" |
| 12 | #include "opcode.h" |
| 13 | #include "pc.h" |
| 14 | #include "pcops.h" |
| 15 | |
| 16 | /* |
| 17 | * The following array is used to determine which classes may be read |
| 18 | * from textfiles. It is indexed by the return value from classify. |
| 19 | */ |
| 20 | #define rdops(x) rdxxxx[(x)-(TFIRST)] |
| 21 | |
| 22 | int rdxxxx[] = { |
| 23 | 0, /* -7 file types */ |
| 24 | 0, /* -6 record types */ |
| 25 | 0, /* -5 array types */ |
| 26 | O_READE, /* -4 scalar types */ |
| 27 | 0, /* -3 pointer types */ |
| 28 | 0, /* -2 set types */ |
| 29 | 0, /* -1 string types */ |
| 30 | 0, /* 0 nil, no type */ |
| 31 | O_READE, /* 1 boolean */ |
| 32 | O_READC, /* 2 character */ |
| 33 | O_READ4, /* 3 integer */ |
| 34 | O_READ8 /* 4 real */ |
| 35 | }; |
| 36 | \f |
| 37 | /* |
| 38 | * Proc handles procedure calls. |
| 39 | * Non-builtin procedures are "buck-passed" to func (with a flag |
| 40 | * indicating that they are actually procedures. |
| 41 | * builtin procedures are handled here. |
| 42 | */ |
| 43 | pcproc(r) |
| 44 | int *r; |
| 45 | { |
| 46 | register struct nl *p; |
| 47 | register int *alv, *al, op; |
| 48 | struct nl *filetype, *ap; |
| 49 | int argc, *argv, typ, fmtspec, strfmt, stkcnt, *file; |
| 50 | char fmt, format[20], *strptr; |
| 51 | int prec, field, strnglen, fmtlen, fmtstart, pu; |
| 52 | int *pua, *pui, *puz; |
| 53 | int i, j, k; |
| 54 | int itemwidth; |
| 55 | char *readname; |
| 56 | long tempoff; |
| 57 | long readtype; |
| 58 | |
| 59 | #define CONPREC 4 |
| 60 | #define VARPREC 8 |
| 61 | #define CONWIDTH 1 |
| 62 | #define VARWIDTH 2 |
| 63 | #define SKIP 16 |
| 64 | |
| 65 | /* |
| 66 | * Verify that the name is |
| 67 | * defined and is that of a |
| 68 | * procedure. |
| 69 | */ |
| 70 | p = lookup(r[2]); |
| 71 | if (p == NIL) { |
| 72 | rvlist(r[3]); |
| 73 | return; |
| 74 | } |
| 75 | if (p->class != PROC && p->class != FPROC) { |
| 76 | error("Can't call %s, its %s not a procedure", p->symbol, classes[p->class]); |
| 77 | rvlist(r[3]); |
| 78 | return; |
| 79 | } |
| 80 | argv = r[3]; |
| 81 | |
| 82 | /* |
| 83 | * Call handles user defined |
| 84 | * procedures and functions. |
| 85 | */ |
| 86 | if (bn != 0) { |
| 87 | call(p, argv, PROC, bn); |
| 88 | return; |
| 89 | } |
| 90 | |
| 91 | /* |
| 92 | * Call to built-in procedure. |
| 93 | * Count the arguments. |
| 94 | */ |
| 95 | argc = 0; |
| 96 | for (al = argv; al != NIL; al = al[2]) |
| 97 | argc++; |
| 98 | |
| 99 | /* |
| 100 | * Switch on the operator |
| 101 | * associated with the built-in |
| 102 | * procedure in the namelist |
| 103 | */ |
| 104 | op = p->value[0] &~ NSTAND; |
| 105 | if (opt('s') && (p->value[0] & NSTAND)) { |
| 106 | standard(); |
| 107 | error("%s is a nonstandard procedure", p->symbol); |
| 108 | } |
| 109 | switch (op) { |
| 110 | |
| 111 | case O_ABORT: |
| 112 | if (argc != 0) |
| 113 | error("null takes no arguments"); |
| 114 | return; |
| 115 | |
| 116 | case O_FLUSH: |
| 117 | if (argc == 0) { |
| 118 | putleaf( P2ICON , 0 , 0 , P2INT , "_PFLUSH" ); |
| 119 | putop( P2UNARY P2CALL , P2INT ); |
| 120 | putdot( filename , line ); |
| 121 | return; |
| 122 | } |
| 123 | if (argc != 1) { |
| 124 | error("flush takes at most one argument"); |
| 125 | return; |
| 126 | } |
| 127 | putleaf( P2ICON , 0 , 0 |
| 128 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 129 | , "_FLUSH" ); |
| 130 | ap = stklval(argv[1], NOFLAGS); |
| 131 | if (ap == NIL) |
| 132 | return; |
| 133 | if (ap->class != FILET) { |
| 134 | error("flush's argument must be a file, not %s", nameof(ap)); |
| 135 | return; |
| 136 | } |
| 137 | putop( P2CALL , P2INT ); |
| 138 | putdot( filename , line ); |
| 139 | return; |
| 140 | |
| 141 | case O_MESSAGE: |
| 142 | case O_WRITEF: |
| 143 | case O_WRITLN: |
| 144 | /* |
| 145 | * Set up default file "output"'s type |
| 146 | */ |
| 147 | file = NIL; |
| 148 | filetype = nl+T1CHAR; |
| 149 | /* |
| 150 | * Determine the file implied |
| 151 | * for the write and generate |
| 152 | * code to make it the active file. |
| 153 | */ |
| 154 | if (op == O_MESSAGE) { |
| 155 | /* |
| 156 | * For message, all that matters |
| 157 | * is that the filetype is |
| 158 | * a character file. |
| 159 | * Thus "output" will suit us fine. |
| 160 | */ |
| 161 | putleaf( P2ICON , 0 , 0 , P2INT , "_PFLUSH" ); |
| 162 | putop( P2UNARY P2CALL , P2INT ); |
| 163 | putdot( filename , line ); |
| 164 | putRV( 0 , cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 165 | putLV( "__err" , 0 , 0 , P2PTR|P2STRTY ); |
| 166 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 167 | putdot( filename , line ); |
| 168 | } else if (argv != NIL && (al = argv[1])[0] != T_WEXP) { |
| 169 | /* |
| 170 | * If there is a first argument which has |
| 171 | * no write widths, then it is potentially |
| 172 | * a file name. |
| 173 | */ |
| 174 | codeoff(); |
| 175 | ap = stkrval(argv[1], NIL , RREQ ); |
| 176 | codeon(); |
| 177 | if (ap == NIL) |
| 178 | argv = argv[2]; |
| 179 | if (ap != NIL && ap->class == FILET) { |
| 180 | /* |
| 181 | * Got "write(f, ...", make |
| 182 | * f the active file, and save |
| 183 | * it and its type for use in |
| 184 | * processing the rest of the |
| 185 | * arguments to write. |
| 186 | */ |
| 187 | putRV( 0 , cbn , CURFILEOFFSET |
| 188 | , P2PTR|P2STRTY ); |
| 189 | putleaf( P2ICON , 0 , 0 |
| 190 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 191 | , "_UNIT" ); |
| 192 | file = argv[1]; |
| 193 | filetype = ap->type; |
| 194 | stklval(argv[1], NOFLAGS); |
| 195 | putop( P2CALL , P2INT ); |
| 196 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 197 | putdot( filename , line ); |
| 198 | /* |
| 199 | * Skip over the first argument |
| 200 | */ |
| 201 | argv = argv[2]; |
| 202 | argc--; |
| 203 | } else { |
| 204 | /* |
| 205 | * Set up for writing on |
| 206 | * standard output. |
| 207 | */ |
| 208 | putRV( 0, cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 209 | putLV( "_output" , 0 , 0 , P2PTR|P2STRTY ); |
| 210 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 211 | putdot( filename , line ); |
| 212 | } |
| 213 | } else { |
| 214 | putRV( 0, cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 215 | putLV( "_output" , 0 , 0 , P2PTR|P2STRTY ); |
| 216 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 217 | putdot( filename , line ); |
| 218 | } |
| 219 | /* |
| 220 | * Loop and process each |
| 221 | * of the arguments. |
| 222 | */ |
| 223 | for (; argv != NIL; argv = argv[2]) { |
| 224 | /* |
| 225 | * fmtspec indicates the type (CONstant or VARiable) |
| 226 | * and number (none, WIDTH, and/or PRECision) |
| 227 | * of the fields in the printf format for this |
| 228 | * output variable. |
| 229 | * stkcnt is the number of longs pushed on the stack |
| 230 | * fmt is the format output indicator (D, E, F, O, X, S) |
| 231 | * fmtstart = 0 for leading blank; = 1 for no blank |
| 232 | */ |
| 233 | fmtspec = NIL; |
| 234 | stkcnt = 0; |
| 235 | fmt = 'D'; |
| 236 | fmtstart = 1; |
| 237 | al = argv[1]; |
| 238 | if (al == NIL) |
| 239 | continue; |
| 240 | if (al[0] == T_WEXP) |
| 241 | alv = al[1]; |
| 242 | else |
| 243 | alv = al; |
| 244 | if (alv == NIL) |
| 245 | continue; |
| 246 | codeoff(); |
| 247 | ap = stkrval(alv, NIL , RREQ ); |
| 248 | codeon(); |
| 249 | if (ap == NIL) |
| 250 | continue; |
| 251 | typ = classify(ap); |
| 252 | if (al[0] == T_WEXP) { |
| 253 | /* |
| 254 | * Handle width expressions. |
| 255 | * The basic game here is that width |
| 256 | * expressions get evaluated. If they |
| 257 | * are constant, the value is placed |
| 258 | * directly in the format string. |
| 259 | * Otherwise the value is pushed onto |
| 260 | * the stack and an indirection is |
| 261 | * put into the format string. |
| 262 | */ |
| 263 | if (al[3] == OCT) |
| 264 | fmt = 'O'; |
| 265 | else if (al[3] == HEX) |
| 266 | fmt = 'X'; |
| 267 | else if (al[3] != NIL) { |
| 268 | /* |
| 269 | * Evaluate second format spec |
| 270 | */ |
| 271 | if ( constval(al[3]) |
| 272 | && isa( con.ctype , "i" ) ) { |
| 273 | fmtspec += CONPREC; |
| 274 | prec = con.crval; |
| 275 | } else { |
| 276 | fmtspec += VARPREC; |
| 277 | } |
| 278 | fmt = 'f'; |
| 279 | switch ( typ ) { |
| 280 | case TINT: |
| 281 | if ( opt( 's' ) ) { |
| 282 | standard(); |
| 283 | error("Writing %ss with two write widths is non-standard", clnames[typ]); |
| 284 | } |
| 285 | /* and fall through */ |
| 286 | case TDOUBLE: |
| 287 | break; |
| 288 | default: |
| 289 | error("Cannot write %ss with two write widths", clnames[typ]); |
| 290 | continue; |
| 291 | } |
| 292 | } |
| 293 | /* |
| 294 | * Evaluate first format spec |
| 295 | */ |
| 296 | if (al[2] != NIL) { |
| 297 | if ( constval(al[2]) |
| 298 | && isa( con.ctype , "i" ) ) { |
| 299 | fmtspec += CONWIDTH; |
| 300 | field = con.crval; |
| 301 | } else { |
| 302 | fmtspec += VARWIDTH; |
| 303 | } |
| 304 | } |
| 305 | if ((fmtspec & CONPREC) && prec < 0 || |
| 306 | (fmtspec & CONWIDTH) && field < 0) { |
| 307 | error("Negative widths are not allowed"); |
| 308 | continue; |
| 309 | } |
| 310 | } |
| 311 | if (filetype != nl+T1CHAR) { |
| 312 | if (fmt == 'O' || fmt == 'X') { |
| 313 | error("Oct/hex allowed only on text files"); |
| 314 | continue; |
| 315 | } |
| 316 | if (fmtspec) { |
| 317 | error("Write widths allowed only on text files"); |
| 318 | continue; |
| 319 | } |
| 320 | /* |
| 321 | * Generalized write, i.e. |
| 322 | * to a non-textfile. |
| 323 | */ |
| 324 | putleaf( P2ICON , 0 , 0 |
| 325 | , ADDTYPE( |
| 326 | ADDTYPE( |
| 327 | ADDTYPE( p2type( filetype ) |
| 328 | , P2PTR ) |
| 329 | , P2FTN ) |
| 330 | , P2PTR ) |
| 331 | , "_FNIL" ); |
| 332 | stklval(file, NOFLAGS); |
| 333 | putop( P2CALL |
| 334 | , ADDTYPE( p2type( filetype ) , P2PTR ) ); |
| 335 | putop( P2UNARY P2MUL , p2type( filetype ) ); |
| 336 | /* |
| 337 | * file^ := ... |
| 338 | */ |
| 339 | switch ( classify( filetype ) ) { |
| 340 | case TBOOL: |
| 341 | case TCHAR: |
| 342 | case TINT: |
| 343 | case TSCAL: |
| 344 | precheck( filetype , "_RANG4" , "_RSGN4" ); |
| 345 | /* and fall through */ |
| 346 | case TDOUBLE: |
| 347 | case TPTR: |
| 348 | ap = rvalue( argv[1] , filetype , RREQ ); |
| 349 | break; |
| 350 | default: |
| 351 | ap = rvalue( argv[1] , filetype , LREQ ); |
| 352 | break; |
| 353 | } |
| 354 | if (ap == NIL) |
| 355 | continue; |
| 356 | if (incompat(ap, filetype, argv[1])) { |
| 357 | cerror("Type mismatch in write to non-text file"); |
| 358 | continue; |
| 359 | } |
| 360 | switch ( classify( filetype ) ) { |
| 361 | case TBOOL: |
| 362 | case TCHAR: |
| 363 | case TINT: |
| 364 | case TSCAL: |
| 365 | postcheck( filetype ); |
| 366 | /* and fall through */ |
| 367 | case TDOUBLE: |
| 368 | case TPTR: |
| 369 | putop( P2ASSIGN , p2type( filetype ) ); |
| 370 | putdot( filename , line ); |
| 371 | break; |
| 372 | default: |
| 373 | putstrop( P2STASG |
| 374 | , p2type( filetype ) |
| 375 | , lwidth( filetype ) |
| 376 | , align( filetype ) ); |
| 377 | putdot( filename , line ); |
| 378 | break; |
| 379 | } |
| 380 | /* |
| 381 | * put(file) |
| 382 | */ |
| 383 | putleaf( P2ICON , 0 , 0 |
| 384 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 385 | , "_PUT" ); |
| 386 | putRV( 0 , cbn , CURFILEOFFSET |
| 387 | , P2PTR|P2STRTY ); |
| 388 | putop( P2CALL , P2INT ); |
| 389 | putdot( filename , line ); |
| 390 | continue; |
| 391 | } |
| 392 | /* |
| 393 | * Write to a textfile |
| 394 | * |
| 395 | * Evaluate the expression |
| 396 | * to be written. |
| 397 | */ |
| 398 | if (fmt == 'O' || fmt == 'X') { |
| 399 | if (opt('s')) { |
| 400 | standard(); |
| 401 | error("Oct and hex are non-standard"); |
| 402 | } |
| 403 | if (typ == TSTR || typ == TDOUBLE) { |
| 404 | error("Can't write %ss with oct/hex", clnames[typ]); |
| 405 | continue; |
| 406 | } |
| 407 | if (typ == TCHAR || typ == TBOOL) |
| 408 | typ = TINT; |
| 409 | } |
| 410 | /* |
| 411 | * If there is no format specified by the programmer, |
| 412 | * implement the default. |
| 413 | */ |
| 414 | switch (typ) { |
| 415 | case TINT: |
| 416 | if (fmt == 'f') { |
| 417 | typ = TDOUBLE; |
| 418 | goto tdouble; |
| 419 | } |
| 420 | if (fmtspec == NIL) { |
| 421 | if (fmt == 'D') |
| 422 | field = 10; |
| 423 | else if (fmt == 'X') |
| 424 | field = 8; |
| 425 | else if (fmt == 'O') |
| 426 | field = 11; |
| 427 | else |
| 428 | panic("fmt1"); |
| 429 | fmtspec = CONWIDTH; |
| 430 | } |
| 431 | break; |
| 432 | case TCHAR: |
| 433 | tchar: |
| 434 | fmt = 'c'; |
| 435 | break; |
| 436 | case TSCAL: |
| 437 | if (opt('s')) { |
| 438 | standard(); |
| 439 | error("Writing scalars to text files is non-standard"); |
| 440 | } |
| 441 | case TBOOL: |
| 442 | fmt = 's'; |
| 443 | break; |
| 444 | case TDOUBLE: |
| 445 | tdouble: |
| 446 | switch (fmtspec) { |
| 447 | case NIL: |
| 448 | field = 21; |
| 449 | prec = 14; |
| 450 | fmt = 'E'; |
| 451 | fmtspec = CONWIDTH + CONPREC; |
| 452 | break; |
| 453 | case CONWIDTH: |
| 454 | if (--field < 1) |
| 455 | field = 1; |
| 456 | prec = field - 7; |
| 457 | if (prec < 1) |
| 458 | prec = 1; |
| 459 | fmtspec += CONPREC; |
| 460 | fmt = 'E'; |
| 461 | break; |
| 462 | case VARWIDTH: |
| 463 | fmtspec += VARPREC; |
| 464 | fmt = 'E'; |
| 465 | break; |
| 466 | case CONWIDTH + CONPREC: |
| 467 | case CONWIDTH + VARPREC: |
| 468 | if (--field < 1) |
| 469 | field = 1; |
| 470 | } |
| 471 | format[0] = ' '; |
| 472 | fmtstart = 0; |
| 473 | break; |
| 474 | case TSTR: |
| 475 | constval( alv ); |
| 476 | switch ( classify( con.ctype ) ) { |
| 477 | case TCHAR: |
| 478 | typ = TCHAR; |
| 479 | goto tchar; |
| 480 | case TSTR: |
| 481 | strptr = con.cpval; |
| 482 | for (strnglen = 0; *strptr++; strnglen++) /* void */; |
| 483 | strptr = con.cpval; |
| 484 | break; |
| 485 | default: |
| 486 | strnglen = width(ap); |
| 487 | break; |
| 488 | } |
| 489 | fmt = 's'; |
| 490 | strfmt = fmtspec; |
| 491 | if (fmtspec == NIL) { |
| 492 | fmtspec = SKIP; |
| 493 | break; |
| 494 | } |
| 495 | if (fmtspec & CONWIDTH) { |
| 496 | if (field <= strnglen) |
| 497 | fmtspec = SKIP; |
| 498 | else |
| 499 | field -= strnglen; |
| 500 | } |
| 501 | break; |
| 502 | default: |
| 503 | error("Can't write %ss to a text file", clnames[typ]); |
| 504 | continue; |
| 505 | } |
| 506 | /* |
| 507 | * Generate the format string |
| 508 | */ |
| 509 | switch (fmtspec) { |
| 510 | default: |
| 511 | panic("fmt2"); |
| 512 | case NIL: |
| 513 | if (fmt == 'c') { |
| 514 | if ( opt( 't' ) ) { |
| 515 | putleaf( P2ICON , 0 , 0 |
| 516 | , ADDTYPE( P2FTN|P2INT , P2PTR ) |
| 517 | , "_WRITEC" ); |
| 518 | putRV( 0 , cbn , CURFILEOFFSET |
| 519 | , P2PTR|P2STRTY ); |
| 520 | stkrval( alv , NIL , RREQ ); |
| 521 | putop( P2LISTOP , P2INT ); |
| 522 | } else { |
| 523 | putleaf( P2ICON , 0 , 0 |
| 524 | , ADDTYPE( P2FTN|P2INT , P2PTR ) |
| 525 | , "_fputc" ); |
| 526 | stkrval( alv , NIL , RREQ ); |
| 527 | } |
| 528 | putleaf( P2ICON , 0 , 0 |
| 529 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 530 | , "_ACTFILE" ); |
| 531 | putRV( 0, cbn , CURFILEOFFSET |
| 532 | , P2PTR|P2STRTY ); |
| 533 | putop( P2CALL , P2INT ); |
| 534 | putop( P2LISTOP , P2INT ); |
| 535 | putop( P2CALL , P2INT ); |
| 536 | putdot( filename , line ); |
| 537 | } else { |
| 538 | sprintf(&format[1], "%%%c", fmt); |
| 539 | goto fmtgen; |
| 540 | } |
| 541 | case SKIP: |
| 542 | break; |
| 543 | case CONWIDTH: |
| 544 | sprintf(&format[1], "%%%1D%c", field, fmt); |
| 545 | goto fmtgen; |
| 546 | case VARWIDTH: |
| 547 | sprintf(&format[1], "%%*%c", fmt); |
| 548 | goto fmtgen; |
| 549 | case CONWIDTH + CONPREC: |
| 550 | sprintf(&format[1], "%%%1D.%1D%c", field, prec, fmt); |
| 551 | goto fmtgen; |
| 552 | case CONWIDTH + VARPREC: |
| 553 | sprintf(&format[1], "%%%1D.*%c", field, fmt); |
| 554 | goto fmtgen; |
| 555 | case VARWIDTH + CONPREC: |
| 556 | sprintf(&format[1], "%%*.%1D%c", prec, fmt); |
| 557 | goto fmtgen; |
| 558 | case VARWIDTH + VARPREC: |
| 559 | sprintf(&format[1], "%%*.*%c", fmt); |
| 560 | fmtgen: |
| 561 | if ( opt( 't' ) ) { |
| 562 | putleaf( P2ICON , 0 , 0 |
| 563 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 564 | , "_WRITEF" ); |
| 565 | putRV( 0 , cbn , CURFILEOFFSET |
| 566 | , P2PTR|P2STRTY ); |
| 567 | putleaf( P2ICON , 0 , 0 |
| 568 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 569 | , "_ACTFILE" ); |
| 570 | putRV( 0 , cbn , CURFILEOFFSET |
| 571 | , P2PTR|P2STRTY ); |
| 572 | putop( P2CALL , P2INT ); |
| 573 | putop( P2LISTOP , P2INT ); |
| 574 | } else { |
| 575 | putleaf( P2ICON , 0 , 0 |
| 576 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 577 | , "_fprintf" ); |
| 578 | putleaf( P2ICON , 0 , 0 |
| 579 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 580 | , "_ACTFILE" ); |
| 581 | putRV( 0 , cbn , CURFILEOFFSET |
| 582 | , P2PTR|P2STRTY ); |
| 583 | putop( P2CALL , P2INT ); |
| 584 | } |
| 585 | putCONG( &format[ fmtstart ] |
| 586 | , strlen( &format[ fmtstart ] ) |
| 587 | , LREQ ); |
| 588 | putop( P2LISTOP , P2INT ); |
| 589 | if ( fmtspec & VARWIDTH ) { |
| 590 | /* |
| 591 | * either |
| 592 | * ,(temp=width,MAX(temp,...)), |
| 593 | * or |
| 594 | * , MAX( width , ... ) , |
| 595 | */ |
| 596 | if ( ( typ == TDOUBLE && al[3] == NIL ) |
| 597 | || typ == TSTR ) { |
| 598 | sizes[ cbn ].om_off -= sizeof( int ); |
| 599 | tempoff = sizes[ cbn ].om_off; |
| 600 | putlbracket( ftnno , -tempoff ); |
| 601 | if ( tempoff < sizes[ cbn ].om_max ) { |
| 602 | sizes[ cbn ].om_max = tempoff; |
| 603 | } |
| 604 | putRV( 0 , cbn , tempoff , P2INT ); |
| 605 | ap = stkrval( al[2] , NIL , RREQ ); |
| 606 | putop( P2ASSIGN , P2INT ); |
| 607 | putleaf( P2ICON , 0 , 0 |
| 608 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 609 | , "_MAX" ); |
| 610 | putRV( 0 , cbn , tempoff , P2INT ); |
| 611 | } else { |
| 612 | if (opt('t') |
| 613 | || typ == TSTR || typ == TDOUBLE) { |
| 614 | putleaf( P2ICON , 0 , 0 |
| 615 | ,ADDTYPE( P2FTN | P2INT, P2PTR ) |
| 616 | ,"_MAX" ); |
| 617 | } |
| 618 | ap = stkrval( al[2] , NIL , RREQ ); |
| 619 | } |
| 620 | if (ap == NIL) |
| 621 | continue; |
| 622 | if (isnta(ap,"i")) { |
| 623 | error("First write width must be integer, not %s", nameof(ap)); |
| 624 | continue; |
| 625 | } |
| 626 | switch ( typ ) { |
| 627 | case TDOUBLE: |
| 628 | putleaf( P2ICON , 1 , 0 , P2INT , 0 ); |
| 629 | putop( P2LISTOP , P2INT ); |
| 630 | putleaf( P2ICON , 1 , 0 , P2INT , 0 ); |
| 631 | putop( P2LISTOP , P2INT ); |
| 632 | putop( P2CALL , P2INT ); |
| 633 | if ( al[3] == NIL ) { |
| 634 | /* |
| 635 | * finish up the comma op |
| 636 | */ |
| 637 | putop( P2COMOP , P2INT ); |
| 638 | fmtspec &= ~VARPREC; |
| 639 | putop( P2LISTOP , P2INT ); |
| 640 | putleaf( P2ICON , 0 , 0 |
| 641 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 642 | , "_MAX" ); |
| 643 | putRV( 0 , cbn , tempoff , P2INT ); |
| 644 | sizes[ cbn ].om_off += sizeof( int ); |
| 645 | putleaf( P2ICON , 8 , 0 , P2INT , 0 ); |
| 646 | putop( P2LISTOP , P2INT ); |
| 647 | putleaf( P2ICON , 1 , 0 , P2INT , 0 ); |
| 648 | putop( P2LISTOP , P2INT ); |
| 649 | putop( P2CALL , P2INT ); |
| 650 | } |
| 651 | putop( P2LISTOP , P2INT ); |
| 652 | break; |
| 653 | case TSTR: |
| 654 | putleaf( P2ICON , strnglen , 0 , P2INT , 0 ); |
| 655 | putop( P2LISTOP , P2INT ); |
| 656 | putleaf( P2ICON , 0 , 0 , P2INT , 0 ); |
| 657 | putop( P2LISTOP , P2INT ); |
| 658 | putop( P2CALL , P2INT ); |
| 659 | putop( P2COMOP , P2INT ); |
| 660 | putop( P2LISTOP , P2INT ); |
| 661 | break; |
| 662 | default: |
| 663 | if (opt('t')) { |
| 664 | putleaf( P2ICON , 0 , 0 , P2INT , 0 ); |
| 665 | putop( P2LISTOP , P2INT ); |
| 666 | putleaf( P2ICON , 0 , 0 , P2INT , 0 ); |
| 667 | putop( P2LISTOP , P2INT ); |
| 668 | putop( P2CALL , P2INT ); |
| 669 | } |
| 670 | putop( P2LISTOP , P2INT ); |
| 671 | break; |
| 672 | } |
| 673 | } |
| 674 | /* |
| 675 | * If there is a variable precision, |
| 676 | * evaluate it |
| 677 | */ |
| 678 | if (fmtspec & VARPREC) { |
| 679 | if (opt('t')) { |
| 680 | putleaf( P2ICON , 0 , 0 |
| 681 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 682 | , "_MAX" ); |
| 683 | } |
| 684 | ap = stkrval( al[3] , NIL , RREQ ); |
| 685 | if (ap == NIL) |
| 686 | continue; |
| 687 | if (isnta(ap,"i")) { |
| 688 | error("Second write width must be integer, not %s", nameof(ap)); |
| 689 | continue; |
| 690 | } |
| 691 | if (opt('t')) { |
| 692 | putleaf( P2ICON , 0 , 0 , P2INT , 0 ); |
| 693 | putop( P2LISTOP , P2INT ); |
| 694 | putleaf( P2ICON , 0 , 0 , P2INT , 0 ); |
| 695 | putop( P2LISTOP , P2INT ); |
| 696 | putop( P2CALL , P2INT ); |
| 697 | } |
| 698 | putop( P2LISTOP , P2INT ); |
| 699 | } |
| 700 | /* |
| 701 | * evaluate the thing we want printed. |
| 702 | */ |
| 703 | switch ( typ ) { |
| 704 | case TCHAR: |
| 705 | case TINT: |
| 706 | stkrval( alv , NIL , RREQ ); |
| 707 | putop( P2LISTOP , P2INT ); |
| 708 | break; |
| 709 | case TDOUBLE: |
| 710 | ap = stkrval( alv , NIL , RREQ ); |
| 711 | if ( isnta( ap , "d" ) ) { |
| 712 | putop( P2SCONV , P2DOUBLE ); |
| 713 | } |
| 714 | putop( P2LISTOP , P2INT ); |
| 715 | break; |
| 716 | case TSCAL: |
| 717 | case TBOOL: |
| 718 | putleaf( P2ICON , 0 , 0 |
| 719 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 720 | , "_NAM" ); |
| 721 | ap = stkrval( alv , NIL , RREQ ); |
| 722 | sprintf( format , PREFIXFORMAT , LABELPREFIX |
| 723 | , listnames( ap ) ); |
| 724 | putleaf( P2ICON , 0 , 0 , P2PTR | P2CHAR |
| 725 | , format ); |
| 726 | putop( P2LISTOP , P2INT ); |
| 727 | putop( P2CALL , P2INT ); |
| 728 | putop( P2LISTOP , P2INT ); |
| 729 | break; |
| 730 | case TSTR: |
| 731 | putCONG( "" , 0 , LREQ ); |
| 732 | putop( P2LISTOP , P2INT ); |
| 733 | break; |
| 734 | } |
| 735 | putop( P2CALL , P2INT ); |
| 736 | putdot( filename , line ); |
| 737 | } |
| 738 | /* |
| 739 | * Write the string after its blank padding |
| 740 | */ |
| 741 | if (typ == TSTR ) { |
| 742 | if ( opt( 't' ) ) { |
| 743 | putleaf( P2ICON , 0 , 0 |
| 744 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 745 | , "_WRITES" ); |
| 746 | putRV( 0 , cbn , CURFILEOFFSET |
| 747 | , P2PTR|P2STRTY ); |
| 748 | ap = stkrval(alv, NIL , RREQ ); |
| 749 | putop( P2LISTOP , P2INT ); |
| 750 | } else { |
| 751 | putleaf( P2ICON , 0 , 0 |
| 752 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 753 | , "_fwrite" ); |
| 754 | ap = stkrval(alv, NIL , RREQ ); |
| 755 | } |
| 756 | if (strfmt & VARWIDTH) { |
| 757 | /* |
| 758 | * min, inline expanded as |
| 759 | * temp < len ? temp : len |
| 760 | */ |
| 761 | putRV( 0 , cbn , tempoff , P2INT ); |
| 762 | putleaf( P2ICON , strnglen , 0 , P2INT , 0 ); |
| 763 | putop( P2LT , P2INT ); |
| 764 | putRV( 0 , cbn , tempoff , P2INT ); |
| 765 | putleaf( P2ICON , strnglen , 0 , P2INT , 0 ); |
| 766 | putop( P2COLON , P2INT ); |
| 767 | putop( P2QUEST , P2INT ); |
| 768 | } else { |
| 769 | if ( ( fmtspec & SKIP ) |
| 770 | && ( strfmt & CONWIDTH ) ) { |
| 771 | strnglen = field; |
| 772 | } |
| 773 | putleaf( P2ICON , strnglen , 0 , P2INT , 0 ); |
| 774 | } |
| 775 | putop( P2LISTOP , P2INT ); |
| 776 | putleaf( P2ICON , 1 , 0 , P2INT , 0 ); |
| 777 | putop( P2LISTOP , P2INT ); |
| 778 | putleaf( P2ICON , 0 , 0 |
| 779 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 780 | , "_ACTFILE" ); |
| 781 | putRV( 0, cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 782 | putop( P2CALL , P2INT ); |
| 783 | putop( P2LISTOP , P2INT ); |
| 784 | putop( P2CALL , P2INT ); |
| 785 | putdot( filename , line ); |
| 786 | } |
| 787 | } |
| 788 | /* |
| 789 | * Done with arguments. |
| 790 | * Handle writeln and |
| 791 | * insufficent number of args. |
| 792 | */ |
| 793 | switch (p->value[0] &~ NSTAND) { |
| 794 | case O_WRITEF: |
| 795 | if (argc == 0) |
| 796 | error("Write requires an argument"); |
| 797 | break; |
| 798 | case O_MESSAGE: |
| 799 | if (argc == 0) |
| 800 | error("Message requires an argument"); |
| 801 | case O_WRITLN: |
| 802 | if (filetype != nl+T1CHAR) |
| 803 | error("Can't 'writeln' a non text file"); |
| 804 | if ( opt( 't' ) ) { |
| 805 | putleaf( P2ICON , 0 , 0 |
| 806 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 807 | , "_WRITLN" ); |
| 808 | putRV( 0 , cbn , CURFILEOFFSET |
| 809 | , P2PTR|P2STRTY ); |
| 810 | } else { |
| 811 | putleaf( P2ICON , 0 , 0 |
| 812 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 813 | , "_fputc" ); |
| 814 | putleaf( P2ICON , '\n' , 0 , P2CHAR , 0 ); |
| 815 | putleaf( P2ICON , 0 , 0 |
| 816 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 817 | , "_ACTFILE" ); |
| 818 | putRV( 0 , cbn , CURFILEOFFSET |
| 819 | , P2PTR|P2STRTY ); |
| 820 | putop( P2CALL , P2INT ); |
| 821 | putop( P2LISTOP , P2INT ); |
| 822 | } |
| 823 | putop( P2CALL , P2INT ); |
| 824 | putdot( filename , line ); |
| 825 | break; |
| 826 | } |
| 827 | return; |
| 828 | |
| 829 | case O_READ4: |
| 830 | case O_READLN: |
| 831 | /* |
| 832 | * Set up default |
| 833 | * file "input". |
| 834 | */ |
| 835 | file = NIL; |
| 836 | filetype = nl+T1CHAR; |
| 837 | /* |
| 838 | * Determine the file implied |
| 839 | * for the read and generate |
| 840 | * code to make it the active file. |
| 841 | */ |
| 842 | if (argv != NIL) { |
| 843 | codeoff(); |
| 844 | ap = stkrval(argv[1], NIL , RREQ ); |
| 845 | codeon(); |
| 846 | if (ap == NIL) |
| 847 | argv = argv[2]; |
| 848 | if (ap != NIL && ap->class == FILET) { |
| 849 | /* |
| 850 | * Got "read(f, ...", make |
| 851 | * f the active file, and save |
| 852 | * it and its type for use in |
| 853 | * processing the rest of the |
| 854 | * arguments to read. |
| 855 | */ |
| 856 | file = argv[1]; |
| 857 | filetype = ap->type; |
| 858 | putRV( 0, cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 859 | putleaf( P2ICON , 0 , 0 |
| 860 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 861 | , "_UNIT" ); |
| 862 | stklval(argv[1], NOFLAGS); |
| 863 | putop( P2CALL , P2INT ); |
| 864 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 865 | putdot( filename , line ); |
| 866 | argv = argv[2]; |
| 867 | argc--; |
| 868 | } else { |
| 869 | /* |
| 870 | * Default is read from |
| 871 | * standard input. |
| 872 | */ |
| 873 | putRV( 0, cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 874 | putLV( "_input" , 0 , 0 , P2PTR|P2STRTY ); |
| 875 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 876 | putdot( filename , line ); |
| 877 | input->nl_flags |= NUSED; |
| 878 | } |
| 879 | } else { |
| 880 | putRV( 0, cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 881 | putLV( "_input" , 0 , 0 , P2PTR|P2STRTY ); |
| 882 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 883 | putdot( filename , line ); |
| 884 | input->nl_flags |= NUSED; |
| 885 | } |
| 886 | /* |
| 887 | * Loop and process each |
| 888 | * of the arguments. |
| 889 | */ |
| 890 | for (; argv != NIL; argv = argv[2]) { |
| 891 | /* |
| 892 | * Get the address of the target |
| 893 | * on the stack. |
| 894 | */ |
| 895 | al = argv[1]; |
| 896 | if (al == NIL) |
| 897 | continue; |
| 898 | if (al[0] != T_VAR) { |
| 899 | error("Arguments to %s must be variables, not expressions", p->symbol); |
| 900 | continue; |
| 901 | } |
| 902 | codeoff(); |
| 903 | ap = stklval(al, MOD|ASGN|NOUSE); |
| 904 | codeon(); |
| 905 | if (ap == NIL) |
| 906 | continue; |
| 907 | if (filetype != nl+T1CHAR) { |
| 908 | /* |
| 909 | * Generalized read, i.e. |
| 910 | * from a non-textfile. |
| 911 | */ |
| 912 | if (incompat(filetype, ap, argv[1] )) { |
| 913 | error("Type mismatch in read from non-text file"); |
| 914 | continue; |
| 915 | } |
| 916 | /* |
| 917 | * var := file ^; |
| 918 | */ |
| 919 | ap = lvalue( al , MOD | ASGN | NOUSE , RREQ ); |
| 920 | if ( isa( ap , "bsci" ) ) { |
| 921 | precheck( ap , "_RANG4" , "_RSNG4" ); |
| 922 | } |
| 923 | putleaf( P2ICON , 0 , 0 |
| 924 | , ADDTYPE( |
| 925 | ADDTYPE( |
| 926 | ADDTYPE( |
| 927 | p2type( filetype ) , P2PTR ) |
| 928 | , P2FTN ) |
| 929 | , P2PTR ) |
| 930 | , "_FNIL" ); |
| 931 | if (file != NIL) |
| 932 | stklval(file, NOFLAGS); |
| 933 | else /* Magic */ |
| 934 | putRV( "_input" , 0 , 0 |
| 935 | , P2PTR | P2STRTY ); |
| 936 | putop( P2CALL , P2INT ); |
| 937 | switch ( classify( filetype ) ) { |
| 938 | case TBOOL: |
| 939 | case TCHAR: |
| 940 | case TINT: |
| 941 | case TSCAL: |
| 942 | case TDOUBLE: |
| 943 | case TPTR: |
| 944 | putop( P2UNARY P2MUL |
| 945 | , p2type( filetype ) ); |
| 946 | } |
| 947 | switch ( classify( filetype ) ) { |
| 948 | case TBOOL: |
| 949 | case TCHAR: |
| 950 | case TINT: |
| 951 | case TSCAL: |
| 952 | postcheck( ap ); |
| 953 | /* and fall through */ |
| 954 | case TDOUBLE: |
| 955 | case TPTR: |
| 956 | putop( P2ASSIGN , p2type( ap ) ); |
| 957 | putdot( filename , line ); |
| 958 | break; |
| 959 | default: |
| 960 | putstrop( P2STASG |
| 961 | , p2type( ap ) |
| 962 | , lwidth( ap ) |
| 963 | , align( ap ) ); |
| 964 | putdot( filename , line ); |
| 965 | break; |
| 966 | } |
| 967 | /* |
| 968 | * get(file); |
| 969 | */ |
| 970 | putleaf( P2ICON , 0 , 0 |
| 971 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 972 | , "_GET" ); |
| 973 | putRV( 0 , cbn , CURFILEOFFSET |
| 974 | , P2PTR|P2STRTY ); |
| 975 | putop( P2CALL , P2INT ); |
| 976 | putdot( filename , line ); |
| 977 | continue; |
| 978 | } |
| 979 | /* |
| 980 | * if you get to here, you are reading from |
| 981 | * a text file. only possiblities are: |
| 982 | * character, integer, real, or scalar. |
| 983 | * read( f , foo , ... ) is done as |
| 984 | * foo := read( f ) with rangechecking |
| 985 | * if appropriate. |
| 986 | */ |
| 987 | typ = classify(ap); |
| 988 | op = rdops(typ); |
| 989 | if (op == NIL) { |
| 990 | error("Can't read %ss from a text file", clnames[typ]); |
| 991 | continue; |
| 992 | } |
| 993 | /* |
| 994 | * left hand side of foo := read( f ) |
| 995 | */ |
| 996 | ap = lvalue( al , MOD|ASGN|NOUSE , RREQ ); |
| 997 | if ( isa( ap , "bsci" ) ) { |
| 998 | precheck( ap , "_RANG4" , "_RSNG4" ); |
| 999 | } |
| 1000 | switch ( op ) { |
| 1001 | case O_READC: |
| 1002 | readname = "_READC"; |
| 1003 | readtype = P2INT; |
| 1004 | break; |
| 1005 | case O_READ4: |
| 1006 | readname = "_READ4"; |
| 1007 | readtype = P2INT; |
| 1008 | break; |
| 1009 | case O_READ8: |
| 1010 | readname = "_READ8"; |
| 1011 | readtype = P2DOUBLE; |
| 1012 | break; |
| 1013 | case O_READE: |
| 1014 | readname = "_READE"; |
| 1015 | readtype = P2INT; |
| 1016 | break; |
| 1017 | } |
| 1018 | putleaf( P2ICON , 0 , 0 |
| 1019 | , ADDTYPE( P2FTN | readtype , P2PTR ) |
| 1020 | , readname ); |
| 1021 | putRV( 0 , cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 1022 | if ( op == O_READE ) { |
| 1023 | sprintf( format , PREFIXFORMAT , LABELPREFIX |
| 1024 | , listnames( ap ) ); |
| 1025 | putleaf( P2ICON , 0 , 0 , P2PTR | P2CHAR |
| 1026 | , format ); |
| 1027 | putop( P2LISTOP , P2INT ); |
| 1028 | if (opt('s')) { |
| 1029 | standard(); |
| 1030 | error("Reading of enumerated types is non-standard"); |
| 1031 | } |
| 1032 | } |
| 1033 | putop( P2CALL , readtype ); |
| 1034 | if ( isa( ap , "bcsi" ) ) { |
| 1035 | postcheck( ap ); |
| 1036 | } |
| 1037 | putop( P2ASSIGN , p2type( ap ) ); |
| 1038 | putdot( filename , line ); |
| 1039 | } |
| 1040 | /* |
| 1041 | * Done with arguments. |
| 1042 | * Handle readln and |
| 1043 | * insufficient number of args. |
| 1044 | */ |
| 1045 | if (p->value[0] == O_READLN) { |
| 1046 | if (filetype != nl+T1CHAR) |
| 1047 | error("Can't 'readln' a non text file"); |
| 1048 | putleaf( P2ICON , 0 , 0 |
| 1049 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1050 | , "_READLN" ); |
| 1051 | putRV( 0 , cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 1052 | putop( P2CALL , P2INT ); |
| 1053 | putdot( filename , line ); |
| 1054 | } else if (argc == 0) |
| 1055 | error("read requires an argument"); |
| 1056 | return; |
| 1057 | |
| 1058 | case O_GET: |
| 1059 | case O_PUT: |
| 1060 | if (argc != 1) { |
| 1061 | error("%s expects one argument", p->symbol); |
| 1062 | return; |
| 1063 | } |
| 1064 | putRV( 0 , cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 1065 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1066 | , "_UNIT" ); |
| 1067 | ap = stklval(argv[1], NOFLAGS); |
| 1068 | if (ap == NIL) |
| 1069 | return; |
| 1070 | if (ap->class != FILET) { |
| 1071 | error("Argument to %s must be a file, not %s", p->symbol, nameof(ap)); |
| 1072 | return; |
| 1073 | } |
| 1074 | putop( P2CALL , P2INT ); |
| 1075 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 1076 | putdot( filename , line ); |
| 1077 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1078 | , op == O_GET ? "_GET" : "_PUT" ); |
| 1079 | putRV( 0 , cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 1080 | putop( P2CALL , P2INT ); |
| 1081 | putdot( filename , line ); |
| 1082 | return; |
| 1083 | |
| 1084 | case O_RESET: |
| 1085 | case O_REWRITE: |
| 1086 | if (argc == 0 || argc > 2) { |
| 1087 | error("%s expects one or two arguments", p->symbol); |
| 1088 | return; |
| 1089 | } |
| 1090 | if (opt('s') && argc == 2) { |
| 1091 | standard(); |
| 1092 | error("Two argument forms of reset and rewrite are non-standard"); |
| 1093 | } |
| 1094 | putleaf( P2ICON , 0 , 0 , P2INT |
| 1095 | , op == O_RESET ? "_RESET" : "_REWRITE" ); |
| 1096 | ap = stklval(argv[1], MOD|NOUSE); |
| 1097 | if (ap == NIL) |
| 1098 | return; |
| 1099 | if (ap->class != FILET) { |
| 1100 | error("First argument to %s must be a file, not %s", p->symbol, nameof(ap)); |
| 1101 | return; |
| 1102 | } |
| 1103 | if (argc == 2) { |
| 1104 | /* |
| 1105 | * Optional second argument |
| 1106 | * is a string name of a |
| 1107 | * UNIX (R) file to be associated. |
| 1108 | */ |
| 1109 | al = argv[2]; |
| 1110 | al = stkrval(al[1], NOFLAGS , RREQ ); |
| 1111 | if (al == NIL) |
| 1112 | return; |
| 1113 | if (classify(al) != TSTR) { |
| 1114 | error("Second argument to %s must be a string, not %s", p->symbol, nameof(al)); |
| 1115 | return; |
| 1116 | } |
| 1117 | strnglen = width(al); |
| 1118 | } else { |
| 1119 | putleaf( P2ICON , 0 , 0 , P2INT , 0 ); |
| 1120 | strnglen = 0; |
| 1121 | } |
| 1122 | putop( P2LISTOP , P2INT ); |
| 1123 | putleaf( P2ICON , strnglen , 0 , P2INT , 0 ); |
| 1124 | putop( P2LISTOP , P2INT ); |
| 1125 | putleaf( P2ICON , text(ap) ? 0: width(ap->type) , 0 , P2INT , 0 ); |
| 1126 | putop( P2LISTOP , P2INT ); |
| 1127 | putop( P2CALL , P2INT ); |
| 1128 | putdot( filename , line ); |
| 1129 | return; |
| 1130 | |
| 1131 | case O_NEW: |
| 1132 | case O_DISPOSE: |
| 1133 | if (argc == 0) { |
| 1134 | error("%s expects at least one argument", p->symbol); |
| 1135 | return; |
| 1136 | } |
| 1137 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1138 | , op == O_DISPOSE ? "_DISPOSE" : |
| 1139 | opt('t') ? "_NEWZ" : "_NEW" ); |
| 1140 | ap = stklval(argv[1], op == O_NEW ? ( MOD | NOUSE ) : MOD ); |
| 1141 | if (ap == NIL) |
| 1142 | return; |
| 1143 | if (ap->class != PTR) { |
| 1144 | error("(First) argument to %s must be a pointer, not %s", p->symbol, nameof(ap)); |
| 1145 | return; |
| 1146 | } |
| 1147 | ap = ap->type; |
| 1148 | if (ap == NIL) |
| 1149 | return; |
| 1150 | argv = argv[2]; |
| 1151 | if (argv != NIL) { |
| 1152 | if (ap->class != RECORD) { |
| 1153 | error("Record required when specifying variant tags"); |
| 1154 | return; |
| 1155 | } |
| 1156 | for (; argv != NIL; argv = argv[2]) { |
| 1157 | if (ap->ptr[NL_VARNT] == NIL) { |
| 1158 | error("Too many tag fields"); |
| 1159 | return; |
| 1160 | } |
| 1161 | if (!isconst(argv[1])) { |
| 1162 | error("Second and successive arguments to %s must be constants", p->symbol); |
| 1163 | return; |
| 1164 | } |
| 1165 | gconst(argv[1]); |
| 1166 | if (con.ctype == NIL) |
| 1167 | return; |
| 1168 | if (incompat(con.ctype, (ap->ptr[NL_TAG])->type , NIL )) { |
| 1169 | cerror("Specified tag constant type clashed with variant case selector type"); |
| 1170 | return; |
| 1171 | } |
| 1172 | for (ap = ap->ptr[NL_VARNT]; ap != NIL; ap = ap->chain) |
| 1173 | if (ap->range[0] == con.crval) |
| 1174 | break; |
| 1175 | if (ap == NIL) { |
| 1176 | error("No variant case label value equals specified constant value"); |
| 1177 | return; |
| 1178 | } |
| 1179 | ap = ap->ptr[NL_VTOREC]; |
| 1180 | } |
| 1181 | } |
| 1182 | putleaf( P2ICON , width( ap ) , 0 , P2INT , 0 ); |
| 1183 | putop( P2LISTOP , P2INT ); |
| 1184 | putop( P2CALL , P2INT ); |
| 1185 | putdot( filename , line ); |
| 1186 | return; |
| 1187 | |
| 1188 | case O_DATE: |
| 1189 | case O_TIME: |
| 1190 | if (argc != 1) { |
| 1191 | error("%s expects one argument", p->symbol); |
| 1192 | return; |
| 1193 | } |
| 1194 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1195 | , op == O_DATE ? "_DATE" : "_TIME" ); |
| 1196 | ap = stklval(argv[1], MOD|NOUSE); |
| 1197 | if (ap == NIL) |
| 1198 | return; |
| 1199 | if (classify(ap) != TSTR || width(ap) != 10) { |
| 1200 | error("Argument to %s must be a alfa, not %s", p->symbol, nameof(ap)); |
| 1201 | return; |
| 1202 | } |
| 1203 | putop( P2CALL , P2INT ); |
| 1204 | putdot( filename , line ); |
| 1205 | return; |
| 1206 | |
| 1207 | case O_HALT: |
| 1208 | if (argc != 0) { |
| 1209 | error("halt takes no arguments"); |
| 1210 | return; |
| 1211 | } |
| 1212 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1213 | , "_HALT" ); |
| 1214 | |
| 1215 | putop( P2UNARY P2CALL , P2INT ); |
| 1216 | putdot( filename , line ); |
| 1217 | noreach = 1; |
| 1218 | return; |
| 1219 | |
| 1220 | case O_ARGV: |
| 1221 | if (argc != 2) { |
| 1222 | error("argv takes two arguments"); |
| 1223 | return; |
| 1224 | } |
| 1225 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1226 | , "_ARGV" ); |
| 1227 | ap = stkrval(argv[1], NIL , RREQ ); |
| 1228 | if (ap == NIL) |
| 1229 | return; |
| 1230 | if (isnta(ap, "i")) { |
| 1231 | error("argv's first argument must be an integer, not %s", nameof(ap)); |
| 1232 | return; |
| 1233 | } |
| 1234 | al = argv[2]; |
| 1235 | ap = stklval(al[1], MOD|NOUSE); |
| 1236 | if (ap == NIL) |
| 1237 | return; |
| 1238 | if (classify(ap) != TSTR) { |
| 1239 | error("argv's second argument must be a string, not %s", nameof(ap)); |
| 1240 | return; |
| 1241 | } |
| 1242 | putop( P2LISTOP , P2INT ); |
| 1243 | putleaf( P2ICON , width( ap ) , 0 , P2INT , 0 ); |
| 1244 | putop( P2LISTOP , P2INT ); |
| 1245 | putop( P2CALL , P2INT ); |
| 1246 | putdot( filename , line ); |
| 1247 | return; |
| 1248 | |
| 1249 | case O_STLIM: |
| 1250 | if (argc != 1) { |
| 1251 | error("stlimit requires one argument"); |
| 1252 | return; |
| 1253 | } |
| 1254 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1255 | , "_STLIM" ); |
| 1256 | ap = stkrval(argv[1], NIL , RREQ ); |
| 1257 | if (ap == NIL) |
| 1258 | return; |
| 1259 | if (isnta(ap, "i")) { |
| 1260 | error("stlimit's argument must be an integer, not %s", nameof(ap)); |
| 1261 | return; |
| 1262 | } |
| 1263 | putop( P2CALL , P2INT ); |
| 1264 | putdot( filename , line ); |
| 1265 | return; |
| 1266 | |
| 1267 | case O_REMOVE: |
| 1268 | if (argc != 1) { |
| 1269 | error("remove expects one argument"); |
| 1270 | return; |
| 1271 | } |
| 1272 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1273 | , "_REMOVE" ); |
| 1274 | ap = stkrval(argv[1], NOFLAGS , RREQ ); |
| 1275 | if (ap == NIL) |
| 1276 | return; |
| 1277 | if (classify(ap) != TSTR) { |
| 1278 | error("remove's argument must be a string, not %s", nameof(ap)); |
| 1279 | return; |
| 1280 | } |
| 1281 | putleaf( P2ICON , width( ap ) , 0 , P2INT , 0 ); |
| 1282 | putop( P2LISTOP , P2INT ); |
| 1283 | putop( P2CALL , P2INT ); |
| 1284 | putdot( filename , line ); |
| 1285 | return; |
| 1286 | |
| 1287 | case O_LLIMIT: |
| 1288 | if (argc != 2) { |
| 1289 | error("linelimit expects two arguments"); |
| 1290 | return; |
| 1291 | } |
| 1292 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1293 | , "_LLIMIT" ); |
| 1294 | ap = stklval(argv[1], NOFLAGS|NOUSE); |
| 1295 | if (ap == NIL) |
| 1296 | return; |
| 1297 | if (!text(ap)) { |
| 1298 | error("linelimit's first argument must be a text file, not %s", nameof(ap)); |
| 1299 | return; |
| 1300 | } |
| 1301 | al = argv[2]; |
| 1302 | ap = stkrval(al[1], NIL , RREQ ); |
| 1303 | if (ap == NIL) |
| 1304 | return; |
| 1305 | if (isnta(ap, "i")) { |
| 1306 | error("linelimit's second argument must be an integer, not %s", nameof(ap)); |
| 1307 | return; |
| 1308 | } |
| 1309 | putop( P2LISTOP , P2INT ); |
| 1310 | putop( P2CALL , P2INT ); |
| 1311 | putdot( filename , line ); |
| 1312 | return; |
| 1313 | case O_PAGE: |
| 1314 | if (argc != 1) { |
| 1315 | error("page expects one argument"); |
| 1316 | return; |
| 1317 | } |
| 1318 | putRV( 0 , cbn , CURFILEOFFSET , P2PTR|P2STRTY ); |
| 1319 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1320 | , "_UNIT" ); |
| 1321 | ap = stklval(argv[1], NOFLAGS); |
| 1322 | if (ap == NIL) |
| 1323 | return; |
| 1324 | if (!text(ap)) { |
| 1325 | error("Argument to page must be a text file, not %s", nameof(ap)); |
| 1326 | return; |
| 1327 | } |
| 1328 | putop( P2CALL , P2INT ); |
| 1329 | putop( P2ASSIGN , P2PTR|P2STRTY ); |
| 1330 | putdot( filename , line ); |
| 1331 | if ( opt( 't' ) ) { |
| 1332 | putleaf( P2ICON , 0 , 0 |
| 1333 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1334 | , "_PAGE" ); |
| 1335 | putRV( 0 , cbn , CURFILEOFFSET |
| 1336 | , P2PTR|P2STRTY ); |
| 1337 | } else { |
| 1338 | putleaf( P2ICON , 0 , 0 |
| 1339 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1340 | , "_fputc" ); |
| 1341 | putleaf( P2ICON , '\f' , 0 , P2CHAR , 0 ); |
| 1342 | putleaf( P2ICON , 0 , 0 |
| 1343 | , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1344 | , "_ACTFILE" ); |
| 1345 | putRV( 0 , cbn , CURFILEOFFSET |
| 1346 | , P2PTR|P2STRTY ); |
| 1347 | putop( P2CALL , P2INT ); |
| 1348 | putop( P2LISTOP , P2INT ); |
| 1349 | } |
| 1350 | putop( P2CALL , P2INT ); |
| 1351 | putdot( filename , line ); |
| 1352 | return; |
| 1353 | |
| 1354 | case O_PACK: |
| 1355 | if (argc != 3) { |
| 1356 | error("pack expects three arguments"); |
| 1357 | return; |
| 1358 | } |
| 1359 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1360 | , "_PACK" ); |
| 1361 | pu = "pack(a,i,z)"; |
| 1362 | pua = (al = argv)[1]; |
| 1363 | pui = (al = al[2])[1]; |
| 1364 | puz = (al = al[2])[1]; |
| 1365 | goto packunp; |
| 1366 | case O_UNPACK: |
| 1367 | if (argc != 3) { |
| 1368 | error("unpack expects three arguments"); |
| 1369 | return; |
| 1370 | } |
| 1371 | putleaf( P2ICON , 0 , 0 , ADDTYPE( P2FTN | P2INT , P2PTR ) |
| 1372 | , "_UNPACK" ); |
| 1373 | pu = "unpack(z,a,i)"; |
| 1374 | puz = (al = argv)[1]; |
| 1375 | pua = (al = al[2])[1]; |
| 1376 | pui = (al = al[2])[1]; |
| 1377 | packunp: |
| 1378 | ap = stkrval((int *) pui, NLNIL , RREQ ); |
| 1379 | if (ap == NIL) |
| 1380 | return; |
| 1381 | ap = stklval(pua, op == O_PACK ? NOFLAGS : MOD|NOUSE); |
| 1382 | if (ap == NIL) |
| 1383 | return; |
| 1384 | if (ap->class != ARRAY) { |
| 1385 | error("%s requires a to be an unpacked array, not %s", pu, nameof(ap)); |
| 1386 | return; |
| 1387 | } |
| 1388 | putop( P2LISTOP , P2INT ); |
| 1389 | al = (struct nl *) stklval(puz, op == O_UNPACK ? NOFLAGS : MOD|NOUSE); |
| 1390 | if (al->class != ARRAY) { |
| 1391 | error("%s requires z to be a packed array, not %s", pu, nameof(ap)); |
| 1392 | return; |
| 1393 | } |
| 1394 | if (al->type == NIL || ap->type == NIL) |
| 1395 | return; |
| 1396 | if (al->type != ap->type) { |
| 1397 | error("%s requires a and z to be arrays of the same type", pu, nameof(ap)); |
| 1398 | return; |
| 1399 | } |
| 1400 | putop( P2LISTOP , P2INT ); |
| 1401 | k = width(al); |
| 1402 | itemwidth = width(ap->type); |
| 1403 | ap = ap->chain; |
| 1404 | al = al->chain; |
| 1405 | if (ap->chain != NIL || al->chain != NIL) { |
| 1406 | error("%s requires a and z to be single dimension arrays", pu); |
| 1407 | return; |
| 1408 | } |
| 1409 | if (ap == NIL || al == NIL) |
| 1410 | return; |
| 1411 | /* |
| 1412 | * al is the range for z i.e. u..v |
| 1413 | * ap is the range for a i.e. m..n |
| 1414 | * i will be n-m+1 |
| 1415 | * j will be v-u+1 |
| 1416 | */ |
| 1417 | i = ap->range[1] - ap->range[0] + 1; |
| 1418 | j = al->range[1] - al->range[0] + 1; |
| 1419 | if (i < j) { |
| 1420 | error("%s cannot have more elements in a (%d) than in z (%d)", pu, j, i); |
| 1421 | return; |
| 1422 | } |
| 1423 | /* |
| 1424 | * get n-m-(v-u) and m for the interpreter |
| 1425 | */ |
| 1426 | i -= j; |
| 1427 | j = ap->range[0]; |
| 1428 | putleaf( P2ICON , itemwidth , 0 , P2INT , 0 ); |
| 1429 | putop( P2LISTOP , P2INT ); |
| 1430 | putleaf( P2ICON , j , 0 , P2INT , 0 ); |
| 1431 | putop( P2LISTOP , P2INT ); |
| 1432 | putleaf( P2ICON , i , 0 , P2INT , 0 ); |
| 1433 | putop( P2LISTOP , P2INT ); |
| 1434 | putleaf( P2ICON , k , 0 , P2INT , 0 ); |
| 1435 | putop( P2LISTOP , P2INT ); |
| 1436 | putop( P2CALL , P2INT ); |
| 1437 | putdot( filename , line ); |
| 1438 | return; |
| 1439 | case 0: |
| 1440 | error("%s is an unimplemented 6400 extension", p->symbol); |
| 1441 | return; |
| 1442 | |
| 1443 | default: |
| 1444 | panic("proc case"); |
| 1445 | } |
| 1446 | } |
| 1447 | #endif PC |