Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* doop.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
79072805 LW |
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 LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "'So that was the job I felt I had to do when I started,' thought Sam." | |
79072805 LW |
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 | |
5d06d08e | 34 | if (SvREADONLY(sv) && !(op->op_private & OPpTRANS_COUNTONLY)) |
a0d0e21e | 35 | croak(no_modify); |
1476d272 | 36 | tbl = (short*)cPVOP->op_pv; |
37 | s = (U8*)SvPV(sv, len); | |
a0d0e21e LW |
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 LW |
46 | DEBUG_t( deb("2.TBL\n")); |
47 | if (!op->op_private) { | |
48 | while (s < send) { | |
1476d272 | 49 | if ((ch = tbl[*s]) >= 0) { |
79072805 LW |
50 | matches++; |
51 | *s = ch; | |
52 | } | |
53 | s++; | |
54 | } | |
5d06d08e MB |
55 | SvSETMAGIC(sv); |
56 | } | |
57 | else if (op->op_private & OPpTRANS_COUNTONLY) { | |
58 | while (s < send) { | |
59 | if (tbl[*s] >= 0) | |
60 | matches++; | |
61 | s++; | |
62 | } | |
79072805 LW |
63 | } |
64 | else { | |
65 | d = s; | |
66 | while (s < send) { | |
1476d272 | 67 | if ((ch = tbl[*s]) >= 0) { |
79072805 LW |
68 | *d = ch; |
69 | if (matches++ && squash) { | |
70 | if (d[-1] == *d) | |
71 | matches--; | |
72 | else | |
73 | d++; | |
74 | } | |
75 | else | |
76 | d++; | |
77 | } | |
78 | else if (ch == -1) /* -1 is unmapped character */ | |
79 | *d++ = *s; /* -2 is delete character */ | |
80 | s++; | |
81 | } | |
82 | matches += send - d; /* account for disappeared chars */ | |
83 | *d = '\0'; | |
1476d272 | 84 | SvCUR_set(sv, d - (U8*)SvPVX(sv)); |
5d06d08e | 85 | SvSETMAGIC(sv); |
79072805 | 86 | } |
79072805 LW |
87 | return matches; |
88 | } | |
89 | ||
90 | void | |
8ac85365 | 91 | do_join(register SV *sv, SV *del, register SV **mark, register SV **sp) |
79072805 LW |
92 | { |
93 | SV **oldmark = mark; | |
94 | register I32 items = sp - mark; | |
79072805 | 95 | register STRLEN len; |
463ee0b2 LW |
96 | STRLEN delimlen; |
97 | register char *delim = SvPV(del, delimlen); | |
98 | STRLEN tmplen; | |
79072805 LW |
99 | |
100 | mark++; | |
101 | len = (items > 0 ? (delimlen * (items - 1) ) : 0); | |
102 | if (SvTYPE(sv) < SVt_PV) | |
103 | sv_upgrade(sv, SVt_PV); | |
104 | if (SvLEN(sv) < len + items) { /* current length is way too short */ | |
105 | while (items-- > 0) { | |
106 | if (*mark) { | |
463ee0b2 LW |
107 | SvPV(*mark, tmplen); |
108 | len += tmplen; | |
79072805 LW |
109 | } |
110 | mark++; | |
111 | } | |
112 | SvGROW(sv, len + 1); /* so try to pre-extend */ | |
113 | ||
114 | mark = oldmark; | |
115 | items = sp - mark;; | |
116 | ++mark; | |
117 | } | |
118 | ||
463ee0b2 | 119 | if (items-- > 0) { |
8990e307 LW |
120 | char *s; |
121 | ||
122 | if (*mark) { | |
123 | s = SvPV(*mark, tmplen); | |
124 | sv_setpvn(sv, s, tmplen); | |
125 | } | |
126 | else | |
127 | sv_setpv(sv, ""); | |
463ee0b2 LW |
128 | mark++; |
129 | } | |
79072805 LW |
130 | else |
131 | sv_setpv(sv,""); | |
132 | len = delimlen; | |
133 | if (len) { | |
134 | for (; items > 0; items--,mark++) { | |
135 | sv_catpvn(sv,delim,len); | |
136 | sv_catsv(sv,*mark); | |
137 | } | |
138 | } | |
139 | else { | |
140 | for (; items > 0; items--,mark++) | |
141 | sv_catsv(sv,*mark); | |
142 | } | |
143 | SvSETMAGIC(sv); | |
144 | } | |
145 | ||
146 | void | |
8ac85365 | 147 | do_sprintf(SV *sv, I32 len, SV **sarg) |
79072805 | 148 | { |
46fc3d4c | 149 | STRLEN patlen; |
150 | char *pat = SvPV(*sarg, patlen); | |
151 | bool do_taint = FALSE; | |
152 | ||
153 | sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint); | |
79072805 | 154 | SvSETMAGIC(sv); |
46fc3d4c | 155 | if (do_taint) |
156 | SvTAINTED_on(sv); | |
79072805 LW |
157 | } |
158 | ||
159 | void | |
8ac85365 | 160 | do_vecset(SV *sv) |
79072805 LW |
161 | { |
162 | SV *targ = LvTARG(sv); | |
163 | register I32 offset; | |
164 | register I32 size; | |
8990e307 LW |
165 | register unsigned char *s; |
166 | register unsigned long lval; | |
79072805 | 167 | I32 mask; |
a0d0e21e LW |
168 | STRLEN targlen; |
169 | STRLEN len; | |
79072805 | 170 | |
8990e307 LW |
171 | if (!targ) |
172 | return; | |
a0d0e21e | 173 | s = (unsigned char*)SvPV_force(targ, targlen); |
8990e307 | 174 | lval = U_L(SvNV(sv)); |
79072805 LW |
175 | offset = LvTARGOFF(sv); |
176 | size = LvTARGLEN(sv); | |
a0d0e21e LW |
177 | |
178 | len = (offset + size + 7) / 8; | |
179 | if (len > targlen) { | |
180 | s = (unsigned char*)SvGROW(targ, len + 1); | |
181 | (void)memzero(s + targlen, len - targlen + 1); | |
182 | SvCUR_set(targ, len); | |
183 | } | |
184 | ||
79072805 LW |
185 | if (size < 8) { |
186 | mask = (1 << size) - 1; | |
187 | size = offset & 7; | |
188 | lval &= mask; | |
189 | offset >>= 3; | |
190 | s[offset] &= ~(mask << size); | |
191 | s[offset] |= lval << size; | |
192 | } | |
193 | else { | |
a0d0e21e | 194 | offset >>= 3; |
79072805 LW |
195 | if (size == 8) |
196 | s[offset] = lval & 255; | |
197 | else if (size == 16) { | |
198 | s[offset] = (lval >> 8) & 255; | |
199 | s[offset+1] = lval & 255; | |
200 | } | |
201 | else if (size == 32) { | |
202 | s[offset] = (lval >> 24) & 255; | |
203 | s[offset+1] = (lval >> 16) & 255; | |
204 | s[offset+2] = (lval >> 8) & 255; | |
205 | s[offset+3] = lval & 255; | |
206 | } | |
207 | } | |
208 | } | |
209 | ||
210 | void | |
8ac85365 | 211 | do_chop(register SV *astr, register SV *sv) |
79072805 | 212 | { |
463ee0b2 | 213 | STRLEN len; |
a0d0e21e LW |
214 | char *s; |
215 | ||
79072805 | 216 | if (SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e LW |
217 | register I32 i; |
218 | I32 max; | |
219 | AV* av = (AV*)sv; | |
220 | max = AvFILL(av); | |
221 | for (i = 0; i <= max; i++) { | |
222 | sv = (SV*)av_fetch(av, i, FALSE); | |
223 | if (sv && ((sv = *(SV**)sv), sv != &sv_undef)) | |
224 | do_chop(astr, sv); | |
225 | } | |
226 | return; | |
79072805 LW |
227 | } |
228 | if (SvTYPE(sv) == SVt_PVHV) { | |
a0d0e21e LW |
229 | HV* hv = (HV*)sv; |
230 | HE* entry; | |
231 | (void)hv_iterinit(hv); | |
232 | /*SUPPRESS 560*/ | |
233 | while (entry = hv_iternext(hv)) | |
234 | do_chop(astr,hv_iterval(hv,entry)); | |
235 | return; | |
79072805 | 236 | } |
a0d0e21e | 237 | s = SvPV(sv, len); |
748a9306 | 238 | if (len && !SvPOK(sv)) |
a0d0e21e LW |
239 | s = SvPV_force(sv, len); |
240 | if (s && len) { | |
241 | s += --len; | |
242 | sv_setpvn(astr, s, 1); | |
243 | *s = '\0'; | |
244 | SvCUR_set(sv, len); | |
245 | SvNIOK_off(sv); | |
79072805 LW |
246 | } |
247 | else | |
a0d0e21e LW |
248 | sv_setpvn(astr, "", 0); |
249 | SvSETMAGIC(sv); | |
250 | } | |
251 | ||
252 | I32 | |
8ac85365 | 253 | do_chomp(register SV *sv) |
a0d0e21e | 254 | { |
aeea060c | 255 | dTHR; |
c07a80fd | 256 | register I32 count; |
a0d0e21e LW |
257 | STRLEN len; |
258 | char *s; | |
c07a80fd | 259 | |
260 | if (RsSNARF(rs)) | |
261 | return 0; | |
262 | count = 0; | |
a0d0e21e LW |
263 | if (SvTYPE(sv) == SVt_PVAV) { |
264 | register I32 i; | |
265 | I32 max; | |
266 | AV* av = (AV*)sv; | |
267 | max = AvFILL(av); | |
268 | for (i = 0; i <= max; i++) { | |
269 | sv = (SV*)av_fetch(av, i, FALSE); | |
270 | if (sv && ((sv = *(SV**)sv), sv != &sv_undef)) | |
271 | count += do_chomp(sv); | |
272 | } | |
273 | return count; | |
274 | } | |
275 | if (SvTYPE(sv) == SVt_PVHV) { | |
276 | HV* hv = (HV*)sv; | |
277 | HE* entry; | |
278 | (void)hv_iterinit(hv); | |
279 | /*SUPPRESS 560*/ | |
280 | while (entry = hv_iternext(hv)) | |
281 | count += do_chomp(hv_iterval(hv,entry)); | |
282 | return count; | |
283 | } | |
284 | s = SvPV(sv, len); | |
285 | if (len && !SvPOKp(sv)) | |
286 | s = SvPV_force(sv, len); | |
287 | if (s && len) { | |
288 | s += --len; | |
c07a80fd | 289 | if (RsPARA(rs)) { |
a0d0e21e LW |
290 | if (*s != '\n') |
291 | goto nope; | |
292 | ++count; | |
293 | while (len && s[-1] == '\n') { | |
294 | --len; | |
295 | --s; | |
296 | ++count; | |
297 | } | |
298 | } | |
a0d0e21e | 299 | else { |
c07a80fd | 300 | STRLEN rslen; |
301 | char *rsptr = SvPV(rs, rslen); | |
302 | if (rslen == 1) { | |
303 | if (*s != *rsptr) | |
304 | goto nope; | |
305 | ++count; | |
306 | } | |
307 | else { | |
8c2cee6f | 308 | if (len < rslen - 1) |
c07a80fd | 309 | goto nope; |
310 | len -= rslen - 1; | |
311 | s -= rslen - 1; | |
36477c24 | 312 | if (memNE(s, rsptr, rslen)) |
c07a80fd | 313 | goto nope; |
314 | count += rslen; | |
315 | } | |
a0d0e21e | 316 | } |
a0d0e21e LW |
317 | *s = '\0'; |
318 | SvCUR_set(sv, len); | |
319 | SvNIOK_off(sv); | |
320 | } | |
321 | nope: | |
322 | SvSETMAGIC(sv); | |
323 | return count; | |
324 | } | |
79072805 LW |
325 | |
326 | void | |
8ac85365 | 327 | do_vop(I32 optype, SV *sv, SV *left, SV *right) |
79072805 | 328 | { |
aeea060c | 329 | dTHR; /* just for taint */ |
79072805 LW |
330 | #ifdef LIBERAL |
331 | register long *dl; | |
332 | register long *ll; | |
333 | register long *rl; | |
334 | #endif | |
335 | register char *dc; | |
463ee0b2 LW |
336 | STRLEN leftlen; |
337 | STRLEN rightlen; | |
7a4c00b4 | 338 | register char *lc; |
339 | register char *rc; | |
79072805 | 340 | register I32 len; |
a0d0e21e | 341 | I32 lensave; |
7a4c00b4 | 342 | char *lsave; |
343 | char *rsave; | |
79072805 | 344 | |
1fbd88dc CS |
345 | if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) |
346 | sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ | |
7a4c00b4 | 347 | lsave = lc = SvPV(left, leftlen); |
348 | rsave = rc = SvPV(right, rightlen); | |
93a17b20 | 349 | len = leftlen < rightlen ? leftlen : rightlen; |
a0d0e21e | 350 | lensave = len; |
7a4c00b4 | 351 | if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
ff68c719 | 352 | dc = SvPV_force(sv, na); |
353 | if (SvCUR(sv) < len) { | |
354 | dc = SvGROW(sv, len + 1); | |
355 | (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); | |
356 | } | |
357 | } | |
358 | else { | |
359 | I32 needlen = ((optype == OP_BIT_AND) | |
360 | ? len : (leftlen > rightlen ? leftlen : rightlen)); | |
361 | Newz(801, dc, needlen + 1, char); | |
362 | (void)sv_usepvn(sv, dc, needlen); | |
363 | dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ | |
79072805 | 364 | } |
a0d0e21e LW |
365 | SvCUR_set(sv, len); |
366 | (void)SvPOK_only(sv); | |
79072805 LW |
367 | #ifdef LIBERAL |
368 | if (len >= sizeof(long)*4 && | |
369 | !((long)dc % sizeof(long)) && | |
370 | !((long)lc % sizeof(long)) && | |
371 | !((long)rc % sizeof(long))) /* It's almost always aligned... */ | |
372 | { | |
373 | I32 remainder = len % (sizeof(long)*4); | |
374 | len /= (sizeof(long)*4); | |
375 | ||
376 | dl = (long*)dc; | |
377 | ll = (long*)lc; | |
378 | rl = (long*)rc; | |
379 | ||
380 | switch (optype) { | |
381 | case OP_BIT_AND: | |
382 | while (len--) { | |
383 | *dl++ = *ll++ & *rl++; | |
384 | *dl++ = *ll++ & *rl++; | |
385 | *dl++ = *ll++ & *rl++; | |
386 | *dl++ = *ll++ & *rl++; | |
387 | } | |
388 | break; | |
a0d0e21e | 389 | case OP_BIT_XOR: |
79072805 LW |
390 | while (len--) { |
391 | *dl++ = *ll++ ^ *rl++; | |
392 | *dl++ = *ll++ ^ *rl++; | |
393 | *dl++ = *ll++ ^ *rl++; | |
394 | *dl++ = *ll++ ^ *rl++; | |
395 | } | |
396 | break; | |
397 | case OP_BIT_OR: | |
398 | while (len--) { | |
399 | *dl++ = *ll++ | *rl++; | |
400 | *dl++ = *ll++ | *rl++; | |
401 | *dl++ = *ll++ | *rl++; | |
402 | *dl++ = *ll++ | *rl++; | |
403 | } | |
404 | } | |
405 | ||
406 | dc = (char*)dl; | |
407 | lc = (char*)ll; | |
408 | rc = (char*)rl; | |
409 | ||
410 | len = remainder; | |
411 | } | |
412 | #endif | |
a0d0e21e | 413 | { |
a0d0e21e LW |
414 | switch (optype) { |
415 | case OP_BIT_AND: | |
416 | while (len--) | |
417 | *dc++ = *lc++ & *rc++; | |
418 | break; | |
419 | case OP_BIT_XOR: | |
420 | while (len--) | |
421 | *dc++ = *lc++ ^ *rc++; | |
422 | goto mop_up; | |
423 | case OP_BIT_OR: | |
424 | while (len--) | |
425 | *dc++ = *lc++ | *rc++; | |
426 | mop_up: | |
427 | len = lensave; | |
428 | if (rightlen > len) | |
429 | sv_catpvn(sv, rsave + len, rightlen - len); | |
430 | else if (leftlen > len) | |
431 | sv_catpvn(sv, lsave + len, leftlen - len); | |
4633a7c4 LW |
432 | else |
433 | *SvEND(sv) = '\0'; | |
a0d0e21e LW |
434 | break; |
435 | } | |
79072805 | 436 | } |
fb73857a | 437 | SvTAINT(sv); |
79072805 | 438 | } |
463ee0b2 LW |
439 | |
440 | OP * | |
8ac85365 | 441 | do_kv(ARGSproto) |
463ee0b2 | 442 | { |
4e35701f | 443 | djSP; |
463ee0b2 | 444 | HV *hv = (HV*)POPs; |
463ee0b2 | 445 | register HE *entry; |
463ee0b2 | 446 | SV *tmpstr; |
54310121 | 447 | I32 gimme = GIMME_V; |
a0d0e21e LW |
448 | I32 dokeys = (op->op_type == OP_KEYS); |
449 | I32 dovalues = (op->op_type == OP_VALUES); | |
c750a3ec MB |
450 | I32 realhv = (SvTYPE(hv) == SVt_PVHV); |
451 | ||
a0d0e21e LW |
452 | if (op->op_type == OP_RV2HV || op->op_type == OP_PADHV) |
453 | dokeys = dovalues = TRUE; | |
463ee0b2 | 454 | |
85581909 SB |
455 | if (!hv) { |
456 | if (op->op_flags & OPf_MOD) { /* lvalue */ | |
457 | dTARGET; /* make sure to clear its target here */ | |
458 | if (SvTYPE(TARG) == SVt_PVLV) | |
459 | LvTARG(TARG) = Nullsv; | |
460 | PUSHs(TARG); | |
461 | } | |
463ee0b2 | 462 | RETURN; |
85581909 | 463 | } |
748a9306 | 464 | |
c750a3ec MB |
465 | if (realhv) |
466 | (void)hv_iterinit(hv); /* always reset iterator regardless */ | |
467 | else | |
468 | (void)avhv_iterinit((AV*)hv); | |
748a9306 | 469 | |
54310121 | 470 | if (gimme == G_VOID) |
aa689395 | 471 | RETURN; |
472 | ||
54310121 | 473 | if (gimme == G_SCALAR) { |
8c2cee6f | 474 | I32 i; |
463ee0b2 LW |
475 | dTARGET; |
476 | ||
85581909 SB |
477 | if (op->op_flags & OPf_MOD) { /* lvalue */ |
478 | if (SvTYPE(TARG) < SVt_PVLV) { | |
479 | sv_upgrade(TARG, SVt_PVLV); | |
480 | sv_magic(TARG, Nullsv, 'k', Nullch, 0); | |
481 | } | |
482 | LvTYPE(TARG) = 'k'; | |
483 | LvTARG(TARG) = (SV*)hv; | |
484 | PUSHs(TARG); | |
485 | RETURN; | |
486 | } | |
487 | ||
8990e307 | 488 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) |
463ee0b2 LW |
489 | i = HvKEYS(hv); |
490 | else { | |
491 | i = 0; | |
463ee0b2 | 492 | /*SUPPRESS 560*/ |
c750a3ec | 493 | while (entry = realhv ? hv_iternext(hv) : avhv_iternext((AV*)hv)) { |
463ee0b2 LW |
494 | i++; |
495 | } | |
496 | } | |
497 | PUSHi( i ); | |
498 | RETURN; | |
499 | } | |
500 | ||
501 | /* Guess how much room we need. hv_max may be a few too many. Oh well. */ | |
502 | EXTEND(sp, HvMAX(hv) * (dokeys + dovalues)); | |
503 | ||
463ee0b2 | 504 | PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ |
c750a3ec | 505 | while (entry = realhv ? hv_iternext(hv) : avhv_iternext((AV*)hv)) { |
463ee0b2 | 506 | SPAGAIN; |
8c2cee6f | 507 | if (dokeys) |
508 | XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */ | |
463ee0b2 | 509 | if (dovalues) { |
46fc3d4c | 510 | tmpstr = sv_newmortal(); |
463ee0b2 | 511 | PUTBACK; |
c750a3ec MB |
512 | sv_setsv(tmpstr,realhv ? |
513 | hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry)); | |
46fc3d4c | 514 | DEBUG_H(sv_setpvf(tmpstr, "%lu%%%d=%lu", |
515 | (unsigned long)HeHASH(entry), | |
516 | HvMAX(hv)+1, | |
517 | (unsigned long)(HeHASH(entry) & HvMAX(hv)))); | |
463ee0b2 | 518 | SPAGAIN; |
46fc3d4c | 519 | XPUSHs(tmpstr); |
463ee0b2 LW |
520 | } |
521 | PUTBACK; | |
522 | } | |
523 | return NORMAL; | |
524 | } | |
4e35701f | 525 |