Commit | Line | Data |
a0d0e21e |
1 | /* doop.c |
79072805 |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "'So that was the job I felt I had to do when I started,' thought Sam." |
79072805 |
12 | */ |
13 | |
14 | #include "EXTERN.h" |
15 | #include "perl.h" |
16 | |
17 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
18 | #include <signal.h> |
19 | #endif |
20 | |
79072805 |
21 | I32 |
8ac85365 |
22 | do_trans(SV *sv, OP *arg) |
79072805 |
23 | { |
11343788 |
24 | dTHR; |
79072805 |
25 | register short *tbl; |
1476d272 |
26 | register U8 *s; |
27 | register U8 *send; |
28 | register U8 *d; |
79072805 |
29 | register I32 ch; |
1476d272 |
30 | register I32 matches = 0; |
79072805 |
31 | register I32 squash = op->op_private & OPpTRANS_SQUASH; |
463ee0b2 |
32 | STRLEN len; |
79072805 |
33 | |
a0d0e21e |
34 | if (SvREADONLY(sv)) |
35 | croak(no_modify); |
1476d272 |
36 | tbl = (short*)cPVOP->op_pv; |
37 | s = (U8*)SvPV(sv, len); |
a0d0e21e |
38 | if (!len) |
39 | return 0; |
40 | if (!SvPOKp(sv)) |
1476d272 |
41 | s = (U8*)SvPV_force(sv, len); |
a0d0e21e |
42 | (void)SvPOK_only(sv); |
463ee0b2 |
43 | send = s + len; |
79072805 |
44 | if (!tbl || !s) |
463ee0b2 |
45 | croak("panic: do_trans"); |
79072805 |
46 | DEBUG_t( deb("2.TBL\n")); |
47 | if (!op->op_private) { |
48 | while (s < send) { |
1476d272 |
49 | if ((ch = tbl[*s]) >= 0) { |
79072805 |
50 | matches++; |
51 | *s = ch; |
52 | } |
53 | s++; |
54 | } |
55 | } |
56 | else { |
57 | d = s; |
58 | while (s < send) { |
1476d272 |
59 | if ((ch = tbl[*s]) >= 0) { |
79072805 |
60 | *d = ch; |
61 | if (matches++ && squash) { |
62 | if (d[-1] == *d) |
63 | matches--; |
64 | else |
65 | d++; |
66 | } |
67 | else |
68 | d++; |
69 | } |
70 | else if (ch == -1) /* -1 is unmapped character */ |
71 | *d++ = *s; /* -2 is delete character */ |
72 | s++; |
73 | } |
74 | matches += send - d; /* account for disappeared chars */ |
75 | *d = '\0'; |
1476d272 |
76 | SvCUR_set(sv, d - (U8*)SvPVX(sv)); |
79072805 |
77 | } |
78 | SvSETMAGIC(sv); |
79 | return matches; |
80 | } |
81 | |
82 | void |
8ac85365 |
83 | do_join(register SV *sv, SV *del, register SV **mark, register SV **sp) |
79072805 |
84 | { |
85 | SV **oldmark = mark; |
86 | register I32 items = sp - mark; |
79072805 |
87 | register STRLEN len; |
463ee0b2 |
88 | STRLEN delimlen; |
89 | register char *delim = SvPV(del, delimlen); |
90 | STRLEN tmplen; |
79072805 |
91 | |
92 | mark++; |
93 | len = (items > 0 ? (delimlen * (items - 1) ) : 0); |
94 | if (SvTYPE(sv) < SVt_PV) |
95 | sv_upgrade(sv, SVt_PV); |
96 | if (SvLEN(sv) < len + items) { /* current length is way too short */ |
97 | while (items-- > 0) { |
98 | if (*mark) { |
463ee0b2 |
99 | SvPV(*mark, tmplen); |
100 | len += tmplen; |
79072805 |
101 | } |
102 | mark++; |
103 | } |
104 | SvGROW(sv, len + 1); /* so try to pre-extend */ |
105 | |
106 | mark = oldmark; |
107 | items = sp - mark;; |
108 | ++mark; |
109 | } |
110 | |
463ee0b2 |
111 | if (items-- > 0) { |
8990e307 |
112 | char *s; |
113 | |
114 | if (*mark) { |
115 | s = SvPV(*mark, tmplen); |
116 | sv_setpvn(sv, s, tmplen); |
117 | } |
118 | else |
119 | sv_setpv(sv, ""); |
463ee0b2 |
120 | mark++; |
121 | } |
79072805 |
122 | else |
123 | sv_setpv(sv,""); |
124 | len = delimlen; |
125 | if (len) { |
126 | for (; items > 0; items--,mark++) { |
127 | sv_catpvn(sv,delim,len); |
128 | sv_catsv(sv,*mark); |
129 | } |
130 | } |
131 | else { |
132 | for (; items > 0; items--,mark++) |
133 | sv_catsv(sv,*mark); |
134 | } |
135 | SvSETMAGIC(sv); |
136 | } |
137 | |
138 | void |
8ac85365 |
139 | do_sprintf(SV *sv, I32 len, SV **sarg) |
79072805 |
140 | { |
46fc3d4c |
141 | STRLEN patlen; |
142 | char *pat = SvPV(*sarg, patlen); |
143 | bool do_taint = FALSE; |
144 | |
145 | sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint); |
79072805 |
146 | SvSETMAGIC(sv); |
46fc3d4c |
147 | if (do_taint) |
148 | SvTAINTED_on(sv); |
79072805 |
149 | } |
150 | |
151 | void |
8ac85365 |
152 | do_vecset(SV *sv) |
79072805 |
153 | { |
154 | SV *targ = LvTARG(sv); |
155 | register I32 offset; |
156 | register I32 size; |
8990e307 |
157 | register unsigned char *s; |
158 | register unsigned long lval; |
79072805 |
159 | I32 mask; |
a0d0e21e |
160 | STRLEN targlen; |
161 | STRLEN len; |
79072805 |
162 | |
8990e307 |
163 | if (!targ) |
164 | return; |
a0d0e21e |
165 | s = (unsigned char*)SvPV_force(targ, targlen); |
8990e307 |
166 | lval = U_L(SvNV(sv)); |
79072805 |
167 | offset = LvTARGOFF(sv); |
168 | size = LvTARGLEN(sv); |
a0d0e21e |
169 | |
170 | len = (offset + size + 7) / 8; |
171 | if (len > targlen) { |
172 | s = (unsigned char*)SvGROW(targ, len + 1); |
173 | (void)memzero(s + targlen, len - targlen + 1); |
174 | SvCUR_set(targ, len); |
175 | } |
176 | |
79072805 |
177 | if (size < 8) { |
178 | mask = (1 << size) - 1; |
179 | size = offset & 7; |
180 | lval &= mask; |
181 | offset >>= 3; |
182 | s[offset] &= ~(mask << size); |
183 | s[offset] |= lval << size; |
184 | } |
185 | else { |
a0d0e21e |
186 | offset >>= 3; |
79072805 |
187 | if (size == 8) |
188 | s[offset] = lval & 255; |
189 | else if (size == 16) { |
190 | s[offset] = (lval >> 8) & 255; |
191 | s[offset+1] = lval & 255; |
192 | } |
193 | else if (size == 32) { |
194 | s[offset] = (lval >> 24) & 255; |
195 | s[offset+1] = (lval >> 16) & 255; |
196 | s[offset+2] = (lval >> 8) & 255; |
197 | s[offset+3] = lval & 255; |
198 | } |
199 | } |
200 | } |
201 | |
202 | void |
8ac85365 |
203 | do_chop(register SV *astr, register SV *sv) |
79072805 |
204 | { |
463ee0b2 |
205 | STRLEN len; |
a0d0e21e |
206 | char *s; |
207 | |
79072805 |
208 | if (SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
209 | register I32 i; |
210 | I32 max; |
211 | AV* av = (AV*)sv; |
212 | max = AvFILL(av); |
213 | for (i = 0; i <= max; i++) { |
214 | sv = (SV*)av_fetch(av, i, FALSE); |
215 | if (sv && ((sv = *(SV**)sv), sv != &sv_undef)) |
216 | do_chop(astr, sv); |
217 | } |
218 | return; |
79072805 |
219 | } |
220 | if (SvTYPE(sv) == SVt_PVHV) { |
a0d0e21e |
221 | HV* hv = (HV*)sv; |
222 | HE* entry; |
223 | (void)hv_iterinit(hv); |
224 | /*SUPPRESS 560*/ |
225 | while (entry = hv_iternext(hv)) |
226 | do_chop(astr,hv_iterval(hv,entry)); |
227 | return; |
79072805 |
228 | } |
a0d0e21e |
229 | s = SvPV(sv, len); |
748a9306 |
230 | if (len && !SvPOK(sv)) |
a0d0e21e |
231 | s = SvPV_force(sv, len); |
232 | if (s && len) { |
233 | s += --len; |
234 | sv_setpvn(astr, s, 1); |
235 | *s = '\0'; |
236 | SvCUR_set(sv, len); |
237 | SvNIOK_off(sv); |
79072805 |
238 | } |
239 | else |
a0d0e21e |
240 | sv_setpvn(astr, "", 0); |
241 | SvSETMAGIC(sv); |
242 | } |
243 | |
244 | I32 |
8ac85365 |
245 | do_chomp(register SV *sv) |
a0d0e21e |
246 | { |
aeea060c |
247 | dTHR; |
c07a80fd |
248 | register I32 count; |
a0d0e21e |
249 | STRLEN len; |
250 | char *s; |
c07a80fd |
251 | |
252 | if (RsSNARF(rs)) |
253 | return 0; |
254 | count = 0; |
a0d0e21e |
255 | if (SvTYPE(sv) == SVt_PVAV) { |
256 | register I32 i; |
257 | I32 max; |
258 | AV* av = (AV*)sv; |
259 | max = AvFILL(av); |
260 | for (i = 0; i <= max; i++) { |
261 | sv = (SV*)av_fetch(av, i, FALSE); |
262 | if (sv && ((sv = *(SV**)sv), sv != &sv_undef)) |
263 | count += do_chomp(sv); |
264 | } |
265 | return count; |
266 | } |
267 | if (SvTYPE(sv) == SVt_PVHV) { |
268 | HV* hv = (HV*)sv; |
269 | HE* entry; |
270 | (void)hv_iterinit(hv); |
271 | /*SUPPRESS 560*/ |
272 | while (entry = hv_iternext(hv)) |
273 | count += do_chomp(hv_iterval(hv,entry)); |
274 | return count; |
275 | } |
276 | s = SvPV(sv, len); |
277 | if (len && !SvPOKp(sv)) |
278 | s = SvPV_force(sv, len); |
279 | if (s && len) { |
280 | s += --len; |
c07a80fd |
281 | if (RsPARA(rs)) { |
a0d0e21e |
282 | if (*s != '\n') |
283 | goto nope; |
284 | ++count; |
285 | while (len && s[-1] == '\n') { |
286 | --len; |
287 | --s; |
288 | ++count; |
289 | } |
290 | } |
a0d0e21e |
291 | else { |
c07a80fd |
292 | STRLEN rslen; |
293 | char *rsptr = SvPV(rs, rslen); |
294 | if (rslen == 1) { |
295 | if (*s != *rsptr) |
296 | goto nope; |
297 | ++count; |
298 | } |
299 | else { |
8c2cee6f |
300 | if (len < rslen - 1) |
c07a80fd |
301 | goto nope; |
302 | len -= rslen - 1; |
303 | s -= rslen - 1; |
36477c24 |
304 | if (memNE(s, rsptr, rslen)) |
c07a80fd |
305 | goto nope; |
306 | count += rslen; |
307 | } |
a0d0e21e |
308 | } |
a0d0e21e |
309 | *s = '\0'; |
310 | SvCUR_set(sv, len); |
311 | SvNIOK_off(sv); |
312 | } |
313 | nope: |
314 | SvSETMAGIC(sv); |
315 | return count; |
316 | } |
79072805 |
317 | |
318 | void |
8ac85365 |
319 | do_vop(I32 optype, SV *sv, SV *left, SV *right) |
79072805 |
320 | { |
aeea060c |
321 | dTHR; /* just for taint */ |
79072805 |
322 | #ifdef LIBERAL |
323 | register long *dl; |
324 | register long *ll; |
325 | register long *rl; |
326 | #endif |
327 | register char *dc; |
463ee0b2 |
328 | STRLEN leftlen; |
329 | STRLEN rightlen; |
7a4c00b4 |
330 | register char *lc; |
331 | register char *rc; |
79072805 |
332 | register I32 len; |
a0d0e21e |
333 | I32 lensave; |
7a4c00b4 |
334 | char *lsave; |
335 | char *rsave; |
79072805 |
336 | |
1fbd88dc |
337 | if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) |
338 | sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ |
7a4c00b4 |
339 | lsave = lc = SvPV(left, leftlen); |
340 | rsave = rc = SvPV(right, rightlen); |
93a17b20 |
341 | len = leftlen < rightlen ? leftlen : rightlen; |
a0d0e21e |
342 | lensave = len; |
7a4c00b4 |
343 | if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
ff68c719 |
344 | dc = SvPV_force(sv, na); |
345 | if (SvCUR(sv) < len) { |
346 | dc = SvGROW(sv, len + 1); |
347 | (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); |
348 | } |
349 | } |
350 | else { |
351 | I32 needlen = ((optype == OP_BIT_AND) |
352 | ? len : (leftlen > rightlen ? leftlen : rightlen)); |
353 | Newz(801, dc, needlen + 1, char); |
354 | (void)sv_usepvn(sv, dc, needlen); |
355 | dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ |
79072805 |
356 | } |
a0d0e21e |
357 | SvCUR_set(sv, len); |
358 | (void)SvPOK_only(sv); |
79072805 |
359 | #ifdef LIBERAL |
360 | if (len >= sizeof(long)*4 && |
361 | !((long)dc % sizeof(long)) && |
362 | !((long)lc % sizeof(long)) && |
363 | !((long)rc % sizeof(long))) /* It's almost always aligned... */ |
364 | { |
365 | I32 remainder = len % (sizeof(long)*4); |
366 | len /= (sizeof(long)*4); |
367 | |
368 | dl = (long*)dc; |
369 | ll = (long*)lc; |
370 | rl = (long*)rc; |
371 | |
372 | switch (optype) { |
373 | case OP_BIT_AND: |
374 | while (len--) { |
375 | *dl++ = *ll++ & *rl++; |
376 | *dl++ = *ll++ & *rl++; |
377 | *dl++ = *ll++ & *rl++; |
378 | *dl++ = *ll++ & *rl++; |
379 | } |
380 | break; |
a0d0e21e |
381 | case OP_BIT_XOR: |
79072805 |
382 | while (len--) { |
383 | *dl++ = *ll++ ^ *rl++; |
384 | *dl++ = *ll++ ^ *rl++; |
385 | *dl++ = *ll++ ^ *rl++; |
386 | *dl++ = *ll++ ^ *rl++; |
387 | } |
388 | break; |
389 | case OP_BIT_OR: |
390 | while (len--) { |
391 | *dl++ = *ll++ | *rl++; |
392 | *dl++ = *ll++ | *rl++; |
393 | *dl++ = *ll++ | *rl++; |
394 | *dl++ = *ll++ | *rl++; |
395 | } |
396 | } |
397 | |
398 | dc = (char*)dl; |
399 | lc = (char*)ll; |
400 | rc = (char*)rl; |
401 | |
402 | len = remainder; |
403 | } |
404 | #endif |
a0d0e21e |
405 | { |
a0d0e21e |
406 | switch (optype) { |
407 | case OP_BIT_AND: |
408 | while (len--) |
409 | *dc++ = *lc++ & *rc++; |
410 | break; |
411 | case OP_BIT_XOR: |
412 | while (len--) |
413 | *dc++ = *lc++ ^ *rc++; |
414 | goto mop_up; |
415 | case OP_BIT_OR: |
416 | while (len--) |
417 | *dc++ = *lc++ | *rc++; |
418 | mop_up: |
419 | len = lensave; |
420 | if (rightlen > len) |
421 | sv_catpvn(sv, rsave + len, rightlen - len); |
422 | else if (leftlen > len) |
423 | sv_catpvn(sv, lsave + len, leftlen - len); |
4633a7c4 |
424 | else |
425 | *SvEND(sv) = '\0'; |
a0d0e21e |
426 | break; |
427 | } |
79072805 |
428 | } |
fb73857a |
429 | SvTAINT(sv); |
79072805 |
430 | } |
463ee0b2 |
431 | |
432 | OP * |
8ac85365 |
433 | do_kv(ARGSproto) |
463ee0b2 |
434 | { |
4e35701f |
435 | djSP; |
463ee0b2 |
436 | HV *hv = (HV*)POPs; |
463ee0b2 |
437 | register HE *entry; |
463ee0b2 |
438 | SV *tmpstr; |
54310121 |
439 | I32 gimme = GIMME_V; |
a0d0e21e |
440 | I32 dokeys = (op->op_type == OP_KEYS); |
441 | I32 dovalues = (op->op_type == OP_VALUES); |
c750a3ec |
442 | I32 realhv = (SvTYPE(hv) == SVt_PVHV); |
443 | |
a0d0e21e |
444 | if (op->op_type == OP_RV2HV || op->op_type == OP_PADHV) |
445 | dokeys = dovalues = TRUE; |
463ee0b2 |
446 | |
85581909 |
447 | if (!hv) { |
448 | if (op->op_flags & OPf_MOD) { /* lvalue */ |
449 | dTARGET; /* make sure to clear its target here */ |
450 | if (SvTYPE(TARG) == SVt_PVLV) |
451 | LvTARG(TARG) = Nullsv; |
452 | PUSHs(TARG); |
453 | } |
463ee0b2 |
454 | RETURN; |
85581909 |
455 | } |
748a9306 |
456 | |
c750a3ec |
457 | if (realhv) |
458 | (void)hv_iterinit(hv); /* always reset iterator regardless */ |
459 | else |
460 | (void)avhv_iterinit((AV*)hv); |
748a9306 |
461 | |
54310121 |
462 | if (gimme == G_VOID) |
aa689395 |
463 | RETURN; |
464 | |
54310121 |
465 | if (gimme == G_SCALAR) { |
8c2cee6f |
466 | I32 i; |
463ee0b2 |
467 | dTARGET; |
468 | |
85581909 |
469 | if (op->op_flags & OPf_MOD) { /* lvalue */ |
470 | if (SvTYPE(TARG) < SVt_PVLV) { |
471 | sv_upgrade(TARG, SVt_PVLV); |
472 | sv_magic(TARG, Nullsv, 'k', Nullch, 0); |
473 | } |
474 | LvTYPE(TARG) = 'k'; |
475 | LvTARG(TARG) = (SV*)hv; |
476 | PUSHs(TARG); |
477 | RETURN; |
478 | } |
479 | |
8990e307 |
480 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) |
463ee0b2 |
481 | i = HvKEYS(hv); |
482 | else { |
483 | i = 0; |
463ee0b2 |
484 | /*SUPPRESS 560*/ |
c750a3ec |
485 | while (entry = realhv ? hv_iternext(hv) : avhv_iternext((AV*)hv)) { |
463ee0b2 |
486 | i++; |
487 | } |
488 | } |
489 | PUSHi( i ); |
490 | RETURN; |
491 | } |
492 | |
493 | /* Guess how much room we need. hv_max may be a few too many. Oh well. */ |
494 | EXTEND(sp, HvMAX(hv) * (dokeys + dovalues)); |
495 | |
463ee0b2 |
496 | PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ |
c750a3ec |
497 | while (entry = realhv ? hv_iternext(hv) : avhv_iternext((AV*)hv)) { |
463ee0b2 |
498 | SPAGAIN; |
8c2cee6f |
499 | if (dokeys) |
500 | XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */ |
463ee0b2 |
501 | if (dovalues) { |
46fc3d4c |
502 | tmpstr = sv_newmortal(); |
463ee0b2 |
503 | PUTBACK; |
c750a3ec |
504 | sv_setsv(tmpstr,realhv ? |
505 | hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry)); |
46fc3d4c |
506 | DEBUG_H(sv_setpvf(tmpstr, "%lu%%%d=%lu", |
507 | (unsigned long)HeHASH(entry), |
508 | HvMAX(hv)+1, |
509 | (unsigned long)(HeHASH(entry) & HvMAX(hv)))); |
463ee0b2 |
510 | SPAGAIN; |
46fc3d4c |
511 | XPUSHs(tmpstr); |
463ee0b2 |
512 | } |
513 | PUTBACK; |
514 | } |
515 | return NORMAL; |
516 | } |
4e35701f |
517 | |