Commit | Line | Data |
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8d387fd1 TL |
1 | #include "awk.def" |
2 | #include "math.h" | |
3 | #define RECSIZE 512 | |
4 | #include "awk.h" | |
5 | #include "stdio.h" | |
6 | ||
7 | #define FILENUM 10 | |
8 | struct | |
9 | { | |
10 | FILE *fp; | |
11 | char *fname; | |
12 | } files[FILENUM]; | |
13 | FILE *popen(); | |
14 | ||
15 | extern obj execute(), nodetoobj(), fieldel(), dopa2(); | |
16 | #define PA2NUM 29 | |
17 | int pairstack[PA2NUM], paircnt; | |
18 | node *winner = (node *)NULL; | |
19 | #define MAXTMP 20 | |
20 | cell tmps[MAXTMP]; | |
21 | static cell nullval ={0,0,0.0,NUM,0}; | |
22 | obj true ={ OBOOL, BTRUE, 0 }; | |
23 | obj false ={ OBOOL, BFALSE, 0 }; | |
24 | ||
25 | run() | |
26 | { | |
27 | return(execute(winner).otype); | |
28 | } | |
29 | ||
30 | obj execute(u) node *u; | |
31 | { | |
32 | register obj (*proc)(); | |
33 | obj x; | |
34 | register node *a; | |
35 | extern char *printname[]; | |
36 | ||
37 | if (u==(node *)NULL) | |
38 | return(true); | |
39 | for (a = u; ; a = a->nnext) { | |
40 | if (cantexec(a)) | |
41 | return(nodetoobj(a)); | |
42 | if (a->ntype==NPA2) | |
43 | proc=dopa2; | |
44 | else { | |
45 | if (notlegal(a->nobj)) | |
46 | error(FATAL, "illegal procedure %o %s", proctab[a->nobj-FIRSTTOKEN], | |
47 | printname[a->nobj-FIRSTTOKEN]); | |
48 | proc = proctab[a->nobj-FIRSTTOKEN]; | |
49 | } | |
50 | x = (*proc)(a->narg,a->nobj); | |
51 | if (isfld(x)) fldbld(); | |
52 | if (isexpr(a)) | |
53 | return(x); | |
54 | /* a statement, goto next statement */ | |
55 | if (isjump(x)) | |
56 | return(x); | |
57 | if (a->nnext == (node *)NULL) | |
58 | return(x); | |
59 | tempfree(x); | |
60 | } | |
61 | } | |
62 | ||
63 | obj program(a, n) node **a; | |
64 | { | |
65 | obj x; | |
66 | ||
67 | if (a[0] != NULL) { | |
68 | x = execute(a[0]); | |
69 | if (isexit(x)) | |
70 | return(true); | |
71 | if (isjump(x)) | |
72 | error(FATAL, "unexpected break, continue or next"); | |
73 | tempfree(x); | |
74 | } | |
75 | while (getrec()) { | |
76 | recloc->tval &= ~NUM; | |
77 | recloc->tval |= STR; | |
78 | ++nrloc->fval; | |
79 | nrloc->tval &= ~STR; | |
80 | nrloc->tval |= NUM; | |
81 | x = execute(a[1]); | |
82 | if (isexit(x)) break; | |
83 | tempfree(x); | |
84 | } | |
85 | tempfree(x); | |
86 | if (a[2] != NULL) { | |
87 | x = execute(a[2]); | |
88 | if (isbreak(x) || isnext(x) || iscont(x)) | |
89 | error(FATAL, "unexpected break, continue or next"); | |
90 | tempfree(x); | |
91 | } | |
92 | return(true); | |
93 | } | |
94 | ||
95 | obj array(a,n) node **a; | |
96 | { | |
97 | obj x, y; | |
98 | extern obj arrayel(); | |
99 | ||
100 | x = execute(a[1]); | |
101 | y = arrayel(a[0], x); | |
102 | tempfree(x); | |
103 | return(y); | |
104 | } | |
105 | ||
106 | obj arrayel(a,b) node *a; obj b; | |
107 | { | |
108 | char *s; | |
109 | cell *x; | |
110 | int i; | |
111 | obj y; | |
112 | ||
113 | s = getsval(b.optr); | |
114 | x = (cell *) a; | |
115 | if (!(x->tval&ARR)) { | |
116 | xfree(x->sval); | |
117 | x->tval &= ~STR; | |
118 | x->tval |= ARR; | |
119 | x->sval = (char *) makesymtab(); | |
120 | } | |
121 | y.optr = setsymtab(s, tostring(""), 0.0, STR, x->sval); | |
122 | y.otype = OCELL; | |
123 | y.osub = CVAR; | |
124 | return(y); | |
125 | } | |
126 | ||
127 | obj matchop(a,n) node **a; | |
128 | { | |
129 | obj x; | |
130 | char *s; | |
131 | int i; | |
132 | ||
133 | x = execute(a[0]); | |
134 | if (isstr(x)) s = x.optr->sval; | |
135 | else s = getsval(x.optr); | |
136 | tempfree(x); | |
137 | i = match(a[1], s); | |
138 | if (n==MATCH && i==1 || n==NOTMATCH && i==0) | |
139 | return(true); | |
140 | else | |
141 | return(false); | |
142 | } | |
143 | ||
144 | obj boolop(a,n) node **a; | |
145 | { | |
146 | obj x, y; | |
147 | int i; | |
148 | ||
149 | x = execute(a[0]); | |
150 | i = istrue(x); | |
151 | tempfree(x); | |
152 | switch (n) { | |
153 | default: | |
154 | error(FATAL, "unknown boolean operator %d", n); | |
155 | case BOR: | |
156 | if (i) return(true); | |
157 | y = execute(a[1]); | |
158 | i = istrue(y); | |
159 | tempfree(y); | |
160 | if (i) return(true); | |
161 | else return(false); | |
162 | case AND: | |
163 | if ( !i ) return(false); | |
164 | y = execute(a[1]); | |
165 | i = istrue(y); | |
166 | tempfree(y); | |
167 | if (i) return(true); | |
168 | else return(false); | |
169 | case NOT: | |
170 | if (i) return(false); | |
171 | else return(true); | |
172 | } | |
173 | } | |
174 | ||
175 | obj relop(a,n) node **a; | |
176 | { | |
177 | int i; | |
178 | obj x, y; | |
179 | awkfloat j; | |
180 | ||
181 | x = execute(a[0]); | |
182 | y = execute(a[1]); | |
183 | if ((x.optr->tval&NUM)==0 && (y.optr->tval&NUM)==0) | |
184 | i = strcmp(x.optr->sval, y.optr->sval); | |
185 | else { | |
186 | j = getfval(x.optr) - getfval(y.optr); | |
187 | i = j<0? -1: (j>0? 1: 0); | |
188 | } | |
189 | tempfree(x); | |
190 | tempfree(y); | |
191 | switch (n) { | |
192 | default: | |
193 | error(FATAL, "unknown relational operator %d", n); | |
194 | case LT: if (i<0) return(true); | |
195 | else return(false); | |
196 | case LE: if (i<=0) return(true); | |
197 | else return(false); | |
198 | case NE: if (i!=0) return(true); | |
199 | else return(false); | |
200 | case EQ: if (i==0) return(true); | |
201 | else return(false); | |
202 | case GE: if (i>=0) return(true); | |
203 | else return(false); | |
204 | case GT: if (i>0) return(true); | |
205 | else return(false); | |
206 | } | |
207 | } | |
208 | ||
209 | tempfree(a) obj a; | |
210 | { | |
211 | if (!istemp(a)) return; | |
212 | xfree(a.optr->sval); | |
213 | a.optr->tval = 0; | |
214 | } | |
215 | ||
216 | obj gettemp() | |
217 | { | |
218 | int i; | |
219 | obj x; | |
220 | ||
221 | for (i=0; i<MAXTMP; i++) | |
222 | if (tmps[i].tval==0) | |
223 | break; | |
224 | if (i==MAXTMP) | |
225 | error(FATAL, "out of temporaries in gettemp"); | |
226 | x.optr = &tmps[i]; | |
227 | tmps[i] = nullval; | |
228 | x.otype = OCELL; | |
229 | x.osub = CTEMP; | |
230 | return(x); | |
231 | } | |
232 | ||
233 | obj indirect(a,n) node **a; | |
234 | { | |
235 | obj x; | |
236 | int m; | |
237 | cell *fieldadr(); | |
238 | ||
239 | x = execute(a[0]); | |
240 | m = getfval(x.optr); | |
241 | tempfree(x); | |
242 | x.optr = fieldadr(m); | |
243 | x.otype = OCELL; | |
244 | x.osub = CFLD; | |
245 | return(x); | |
246 | } | |
247 | ||
248 | obj substr(a, nnn) node **a; | |
249 | { | |
250 | char *s, *p, temp[100]; | |
251 | obj x; | |
252 | int k, m, n; | |
253 | ||
254 | x = execute(a[0]); | |
255 | s = getsval(x.optr); | |
256 | k = strlen(s) + 1; | |
257 | tempfree(x); | |
258 | x = execute(a[1]); | |
259 | m = getfval(x.optr); | |
260 | if (m <= 0) | |
261 | m = 1; | |
262 | else if (m > k) | |
263 | m = k; | |
264 | tempfree(x); | |
265 | if (a[2] != nullstat) { | |
266 | x = execute(a[2]); | |
267 | n = getfval(x.optr); | |
268 | tempfree(x); | |
269 | } | |
270 | else | |
271 | n = k - 1; | |
272 | if (n < 0) | |
273 | n = 0; | |
274 | else if (n > k - m) | |
275 | n = k - m; | |
276 | dprintf("substr: m=%d, n=%d, s=%s\n", m, n, s); | |
277 | p = temp; | |
278 | s += m - 1; | |
279 | while (n-- > 0) | |
280 | *p++ = *s++; | |
281 | *p = '\0'; | |
282 | x = gettemp(); | |
283 | setsval(x.optr, temp); | |
284 | return(x); | |
285 | } | |
286 | ||
287 | obj index(a, nnn) node **a; | |
288 | { | |
289 | obj x, y; | |
290 | char *s1, *s2, *p1, *p2, *q; | |
291 | ||
292 | x = execute(a[0]); | |
293 | s1 = getsval(x.optr); | |
294 | tempfree(x); | |
295 | y = execute(a[1]); | |
296 | s2 = getsval(y.optr); | |
297 | tempfree(y); | |
298 | ||
299 | x = gettemp(); | |
300 | for (p1 = s1; *p1 != '\0'; p1++) { | |
301 | for (q=p1, p2=s2; *p2 != '\0' && *q == *p2; q++, p2++) | |
302 | ; | |
303 | if (*p2 == '\0') { | |
304 | setfval(x.optr, (float) (p1 - s1 + 1)); /* origin 1 */ | |
305 | return(x); | |
306 | } | |
307 | } | |
308 | setfval(x.optr, 0.0); | |
309 | return(x); | |
310 | } | |
311 | ||
312 | char *format(s,a) char *s; node *a; | |
313 | { | |
314 | char *buf, *p, fmt[100], *t, *os; | |
315 | obj x; | |
316 | int flag = 0; | |
317 | awkfloat xf; | |
318 | ||
319 | os = s; | |
320 | p = buf = (char *)malloc(RECSIZE); | |
321 | while (*s) { | |
322 | if (*s != '%') { | |
323 | *p++ = *s++; | |
324 | continue; | |
325 | } | |
326 | if (*(s+1) == '%') { | |
327 | *p++ = '%'; | |
328 | *p++ = '%'; | |
329 | s += 2; | |
330 | continue; | |
331 | } | |
332 | for (t=fmt; (*t++ = *s) != '\0'; s++) | |
333 | if (*s >= 'a' && *s <= 'z' && *s != 'l') | |
334 | break; | |
335 | *t = '\0'; | |
336 | if (t > fmt + 100) | |
337 | error(FATAL, "format item %.20s... too long", os); | |
338 | switch (*s) { | |
339 | case 'f': case 'e': case 'g': | |
340 | flag = 1; | |
341 | break; | |
342 | case 'd': | |
343 | flag = 2; | |
344 | if(*(s-1) == 'l') break; | |
345 | *(t-1) = 'l'; | |
346 | *t = 'd'; | |
347 | *++t = '\0'; | |
348 | break; | |
349 | case 'o': case 'x': | |
350 | flag = *(s-1)=='l' ? 2 : 3; | |
351 | break; | |
352 | case 's': | |
353 | flag = 4; | |
354 | break; | |
355 | default: | |
356 | flag = 0; | |
357 | break; | |
358 | } | |
359 | if (flag == 0) { | |
360 | sprintf(p, "%s", fmt); | |
361 | continue; | |
362 | } | |
363 | if (a == NULL) | |
364 | error(FATAL, "not enough arguments in printf(%s)", os); | |
365 | x = execute(a); | |
366 | a = a->nnext; | |
367 | if (flag != 4) /* watch out for converting to numbers! */ | |
368 | xf = getfval(x.optr); | |
369 | if (flag==1) sprintf(p, fmt, xf); | |
370 | else if (flag==2) sprintf(p, fmt, (long)xf); | |
371 | else if (flag==3) sprintf(p, fmt, (int)xf); | |
372 | else if (flag==4) sprintf(p, fmt, x.optr->sval==NULL ? "" : getsval(x.optr)); | |
373 | tempfree(x); | |
374 | p += strlen(p); | |
375 | s++; | |
376 | } | |
377 | *p = '\0'; | |
378 | return(buf); | |
379 | } | |
380 | ||
381 | obj asprintf(a,n) node **a; | |
382 | { | |
383 | obj x; | |
384 | node *y; | |
385 | char *s; | |
386 | ||
387 | y = a[0]->nnext; | |
388 | x = execute(a[0]); | |
389 | s = format(getsval(x.optr), y); | |
390 | tempfree(x); | |
391 | x = gettemp(); | |
392 | x.optr->sval = s; | |
393 | x.optr->tval = STR; | |
394 | return(x); | |
395 | } | |
396 | ||
397 | obj arith(a,n) node **a; | |
398 | { | |
399 | awkfloat i,j; | |
400 | obj x,y,z; | |
401 | ||
402 | x = execute(a[0]); | |
403 | i = getfval(x.optr); | |
404 | tempfree(x); | |
405 | if (n != UMINUS) { | |
406 | y = execute(a[1]); | |
407 | j = getfval(y.optr); | |
408 | tempfree(y); | |
409 | } | |
410 | z = gettemp(); | |
411 | switch (n) { | |
412 | default: | |
413 | error(FATAL, "illegal arithmetic operator %d", n); | |
414 | case ADD: | |
415 | setfval(z.optr, i+j); | |
416 | break; | |
417 | case MINUS: | |
418 | setfval(z.optr, i-j); | |
419 | break; | |
420 | case MULT: | |
421 | setfval(z.optr, i*j); | |
422 | break; | |
423 | case DIVIDE: | |
424 | if (j == 0) | |
425 | error(FATAL, "division by zero"); | |
426 | setfval(z.optr, i/j); | |
427 | break; | |
428 | case MOD: | |
429 | if (j == 0) | |
430 | error(FATAL, "division by zero"); | |
431 | setfval(z.optr, i-j*(long)(i/j)); | |
432 | break; | |
433 | case UMINUS: | |
434 | setfval(z.optr, -i); | |
435 | break; | |
436 | } | |
437 | return(z); | |
438 | } | |
439 | ||
440 | obj incrdecr(a, n) node **a; | |
441 | { | |
442 | obj x, z; | |
443 | int k; | |
444 | awkfloat xf; | |
445 | ||
446 | x = execute(a[0]); | |
447 | xf = getfval(x.optr); | |
448 | k = (n == PREINCR || n == POSTINCR) ? 1 : -1; | |
449 | if (n == PREINCR || n == PREDECR) { | |
450 | setfval(x.optr, xf + k); | |
451 | return(x); | |
452 | } | |
453 | z = gettemp(); | |
454 | setfval(z.optr, xf); | |
455 | setfval(x.optr, xf + k); | |
456 | tempfree(x); | |
457 | return(z); | |
458 | } | |
459 | ||
460 | ||
461 | obj assign(a,n) node **a; | |
462 | { | |
463 | obj x, y; | |
464 | awkfloat xf, yf; | |
465 | ||
466 | x = execute(a[0]); | |
467 | y = execute(a[1]); | |
468 | if (n == ASSIGN) { /* ordinary assignment */ | |
469 | if (y.optr->tval&STR) setsval(x.optr, y.optr->sval); | |
470 | if (y.optr->tval&NUM) setfval(x.optr, y.optr->fval); | |
471 | tempfree(y); | |
472 | return(x); | |
473 | } | |
474 | xf = getfval(x.optr); | |
475 | yf = getfval(y.optr); | |
476 | switch (n) { | |
477 | case ADDEQ: | |
478 | setfval(x.optr, xf + yf); | |
479 | break; | |
480 | case SUBEQ: | |
481 | setfval(x.optr, xf - yf); | |
482 | break; | |
483 | case MULTEQ: | |
484 | setfval(x.optr, xf * yf); | |
485 | break; | |
486 | case DIVEQ: | |
487 | if (yf == 0) | |
488 | error(FATAL, "division by zero"); | |
489 | setfval(x.optr, xf / yf); | |
490 | break; | |
491 | case MODEQ: | |
492 | if (yf == 0) | |
493 | error(FATAL, "division by zero"); | |
494 | setfval(x.optr, xf - yf*(long)(xf/yf)); | |
495 | break; | |
496 | default: | |
497 | error(FATAL, "illegal assignment operator %d", n); | |
498 | break; | |
499 | } | |
500 | tempfree(y); | |
501 | return(x); | |
502 | } | |
503 | ||
504 | obj cat(a,q) node **a; | |
505 | { | |
506 | obj x,y,z; | |
507 | int n; | |
508 | char *s; | |
509 | ||
510 | x = execute(a[0]); | |
511 | y = execute(a[1]); | |
512 | getsval(x.optr); | |
513 | getsval(y.optr); | |
514 | n = strlen(x.optr->sval) + strlen(y.optr->sval); | |
515 | s = (char *)malloc(n+1); | |
516 | strcpy(s, x.optr->sval); | |
517 | strcat(s, y.optr->sval); | |
518 | tempfree(y); | |
519 | z = gettemp(); | |
520 | z.optr->sval = s; | |
521 | z.optr->tval = STR; | |
522 | tempfree(x); | |
523 | return(z); | |
524 | } | |
525 | ||
526 | obj pastat(a,n) node **a; | |
527 | { | |
528 | obj x; | |
529 | ||
530 | if (a[0]==nullstat) | |
531 | x = true; | |
532 | else | |
533 | x = execute(a[0]); | |
534 | if (istrue(x)) { | |
535 | tempfree(x); | |
536 | x = execute(a[1]); | |
537 | } | |
538 | return(x); | |
539 | } | |
540 | ||
541 | obj dopa2(a,n) node **a; | |
542 | { | |
543 | obj x; | |
544 | ||
545 | if (pairstack[n]==0) { | |
546 | x = execute(a[0]); | |
547 | if (istrue(x)) | |
548 | pairstack[n] = 1; | |
549 | tempfree(x); | |
550 | } | |
551 | if (pairstack[n] == 1) { | |
552 | x = execute(a[1]); | |
553 | if (istrue(x)) | |
554 | pairstack[n] = 0; | |
555 | tempfree(x); | |
556 | x = execute(a[2]); | |
557 | return(x); | |
558 | } | |
559 | return(false); | |
560 | } | |
561 | ||
562 | obj aprintf(a,n) node **a; | |
563 | { | |
564 | obj x; | |
565 | ||
566 | x = asprintf(a,n); | |
567 | if (a[1]==NULL) { | |
568 | printf(x.optr->sval); | |
569 | tempfree(x); | |
570 | return(true); | |
571 | } | |
572 | redirprint(x.optr->sval, (int)a[1], a[2]); | |
573 | return(x); | |
574 | } | |
575 | ||
576 | obj split(a,nnn) node **a; | |
577 | { | |
578 | obj x; | |
579 | cell *ap; | |
580 | register char *s, *p; | |
581 | char *t, temp[100], num[5]; | |
582 | register int sep; | |
583 | int n; | |
584 | ||
585 | x = execute(a[0]); | |
586 | s = getsval(x.optr); | |
587 | tempfree(x); | |
588 | if (a[2] == nullstat) | |
589 | sep = **FS; | |
590 | else { | |
591 | x = execute(a[2]); | |
592 | sep = getsval(x.optr)[0]; | |
593 | tempfree(x); | |
594 | } | |
595 | n = 0; | |
596 | ap = (cell *) a[1]; | |
597 | freesymtab(ap); | |
598 | dprintf("split: s=|%s|, a=%s, sep=|%c|\n", s, ap->nval, sep); | |
599 | ap->tval &= ~STR; | |
600 | ap->tval |= ARR; | |
601 | ap->sval = (char *) makesymtab(); | |
602 | /* here we go */ | |
603 | for (;;) { | |
604 | if (sep == ' ') | |
605 | while (*s == ' ' || *s == '\t' || *s == '\n') | |
606 | s++; | |
607 | if (*s == '\0') | |
608 | break; | |
609 | n++; | |
610 | for (p=s, t=temp; (*t = *p) != '\0'; p++, t++) | |
611 | if (*p == sep | |
612 | || sep == ' ' && (*p == '\t' || *p == '\n') | |
613 | || sep == '\t' && *p == '\n') | |
614 | break; | |
615 | *t = '\0'; | |
616 | dprintf("n=%d, s=|%s|, temp=|%s|\n", n, s, temp); | |
617 | sprintf(num, "%d", n); | |
618 | setsymtab(num, tostring(temp), 0.0, STR, ap->sval); | |
619 | if (*p == '\0') /* all done */ | |
620 | break; | |
621 | s = p + 1; | |
622 | } | |
623 | x = gettemp(); | |
624 | x.optr->tval = NUM; | |
625 | x.optr->fval = n; | |
626 | return(x); | |
627 | } | |
628 | ||
629 | obj ifstat(a,n) node **a; | |
630 | { | |
631 | obj x; | |
632 | ||
633 | x = execute(a[0]); | |
634 | if (istrue(x)) { | |
635 | tempfree(x); | |
636 | x = execute(a[1]); | |
637 | } | |
638 | else if (a[2] != nullstat) { | |
639 | tempfree(x); | |
640 | x = execute(a[2]); | |
641 | } | |
642 | return(x); | |
643 | } | |
644 | ||
645 | obj whilestat(a,n) node **a; | |
646 | { | |
647 | obj x; | |
648 | ||
649 | for (;;) { | |
650 | x = execute(a[0]); | |
651 | if (!istrue(x)) return(x); | |
652 | tempfree(x); | |
653 | x = execute(a[1]); | |
654 | if (isbreak(x) || isnext(x) || isexit(x)) | |
655 | return(x); | |
656 | tempfree(x); | |
657 | } | |
658 | } | |
659 | ||
660 | obj forstat(a,n) node **a; | |
661 | { | |
662 | obj x; | |
663 | ||
664 | tempfree(execute(a[0])); | |
665 | for (;;) { | |
666 | if (a[1]!=nullstat) { | |
667 | x = execute(a[1]); | |
668 | if (!istrue(x)) return(x); | |
669 | else tempfree(x); | |
670 | } | |
671 | x = execute(a[3]); | |
672 | if (isbreak(x)) { /* turn off break */ | |
673 | x = true; | |
674 | return(x); | |
675 | } | |
676 | if (isnext(x) || isexit(x)) | |
677 | return(x); | |
678 | tempfree(x); | |
679 | tempfree(execute(a[2])); | |
680 | } | |
681 | } | |
682 | ||
683 | obj instat(a, n) node **a; | |
684 | { | |
685 | cell *vp, *arrayp, *cp, **tp; | |
686 | obj x; | |
687 | int i; | |
688 | ||
689 | vp = (cell *) a[0]; | |
690 | arrayp = (cell *) a[1]; | |
691 | if (!(arrayp->tval & ARR)) | |
692 | error(FATAL, "%s is not an array", arrayp->nval); | |
693 | tp = (cell **) arrayp->sval; | |
694 | for (i = 0; i < MAXSYM; i++) { /* this routine knows too much */ | |
695 | for (cp = tp[i]; cp != NULL; cp = cp->nextval) { | |
696 | vp->sval = tostring(cp->nval); | |
697 | vp->tval = STR; | |
698 | x = execute(a[2]); | |
699 | if (isbreak(x)) { | |
700 | x = true; | |
701 | return(x); | |
702 | } | |
703 | if (isnext(x) || isexit(x)) | |
704 | return(x); | |
705 | tempfree(x); | |
706 | } | |
707 | } | |
708 | } | |
709 | ||
710 | obj jump(a,n) node **a; | |
711 | { | |
712 | obj x; | |
713 | ||
714 | x.otype = OJUMP; | |
715 | switch (n) { | |
716 | default: | |
717 | error(FATAL, "illegal jump type %d", n); | |
718 | break; | |
719 | case EXIT: | |
720 | x.osub = JEXIT; | |
721 | break; | |
722 | case NEXT: | |
723 | x.osub = JNEXT; | |
724 | break; | |
725 | case BREAK: | |
726 | x.osub = JBREAK; | |
727 | break; | |
728 | case CONTINUE: | |
729 | x.osub = JCONT; | |
730 | break; | |
731 | } | |
732 | return(x); | |
733 | } | |
734 | ||
735 | obj fncn(a,n) node **a; | |
736 | { | |
737 | obj x; | |
738 | awkfloat u; | |
739 | int t; | |
740 | ||
741 | t = (int) a[0]; | |
742 | x = execute(a[1]); | |
743 | if (t == FLENGTH) | |
744 | u = (awkfloat) strlen(getsval(x.optr)); | |
745 | else if (t == FLOG) | |
746 | u = log(getfval(x.optr)); | |
747 | else if (t == FINT) | |
748 | u = (awkfloat) (long) getfval(x.optr); | |
749 | else if (t == FEXP) | |
750 | u = exp(getfval(x.optr)); | |
751 | else if (t == FSQRT) | |
752 | u = sqrt(getfval(x.optr)); | |
753 | else | |
754 | error(FATAL, "illegal function type %d", t); | |
755 | tempfree(x); | |
756 | x = gettemp(); | |
757 | setfval(x.optr, u); | |
758 | return(x); | |
759 | } | |
760 | ||
761 | obj print(a,n) node **a; | |
762 | { | |
763 | register node *x; | |
764 | obj y; | |
765 | char s[RECSIZE]; | |
766 | ||
767 | s[0] = '\0'; | |
768 | for (x=a[0]; x!=NULL; x=x->nnext) { | |
769 | y = execute(x); | |
770 | strcat(s, getsval(y.optr)); | |
771 | tempfree(y); | |
772 | if (x->nnext==NULL) | |
773 | strcat(s, *ORS); | |
774 | else | |
775 | strcat(s, *OFS); | |
776 | } | |
777 | if (strlen(s) >= RECSIZE) | |
778 | error(FATAL, "string %.20s ... too long to print", s); | |
779 | if (a[1]==nullstat) { | |
780 | printf("%s", s); | |
781 | return(true); | |
782 | } | |
783 | redirprint(s, (int)a[1], a[2]); | |
784 | return(false); | |
785 | } | |
786 | ||
787 | obj nullproc() {} | |
788 | ||
789 | obj nodetoobj(a) node *a; | |
790 | { | |
791 | obj x; | |
792 | ||
793 | x.optr = (cell *) a->nobj; | |
794 | x.otype = OCELL; | |
795 | x.osub = a->subtype; | |
796 | if (isfld(x)) fldbld(); | |
797 | return(x); | |
798 | } | |
799 | ||
800 | redirprint(s, a, b) char *s; node *b; | |
801 | { | |
802 | register int i; | |
803 | obj x; | |
804 | ||
805 | x = execute(b); | |
806 | getsval(x.optr); | |
807 | for (i=0; i<FILENUM; i++) | |
808 | if (strcmp(x.optr->sval, files[i].fname) == 0) | |
809 | goto doit; | |
810 | for (i=0; i<FILENUM; i++) | |
811 | if (files[i].fp == 0) | |
812 | break; | |
813 | if (i >= FILENUM) | |
814 | error(FATAL, "too many output files %d", i); | |
815 | if (a == '|') /* a pipe! */ | |
816 | files[i].fp = popen(x.optr->sval, "w"); | |
817 | else if (a == APPEND) | |
818 | files[i].fp = fopen(x.optr->sval, "a"); | |
819 | else | |
820 | files[i].fp = fopen(x.optr->sval, "w"); | |
821 | if (files[i].fp == NULL) | |
822 | error(FATAL, "can't open file %s", x.optr->sval); | |
823 | files[i].fname = tostring(x.optr->sval); | |
824 | doit: | |
825 | fprintf(files[i].fp, "%s", s); | |
826 | tempfree(x); | |
827 | } | |
828 | ||
829 | #ifdef gcos | |
830 | ||
831 | FILE *popen(s1, s2) /* fake */ | |
832 | char *s1, *s2; | |
833 | { | |
834 | error(FATAL, "can't open pipe %s on gcos\n", s1); | |
835 | } | |
836 | ||
837 | #endif |