3 * Copyright (c) 1991-1994, Larry Wall
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.
11 * "It's a big house this, and very peculiar. Always a bit more to discover,
12 * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise
18 static void doencodes _((SV *sv, char *s, I32 len));
20 /* variations on pp_null */
25 if (GIMME != G_ARRAY) {
41 if (op->op_private & OPpLVAL_INTRO)
42 SAVECLEARSV(curpad[op->op_targ]);
44 if (op->op_flags & OPf_REF) {
48 if (GIMME == G_ARRAY) {
49 I32 maxarg = AvFILL((AV*)TARG) + 1;
51 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
55 SV* sv = sv_newmortal();
56 I32 maxarg = AvFILL((AV*)TARG) + 1;
67 if (op->op_private & OPpLVAL_INTRO)
68 SAVECLEARSV(curpad[op->op_targ]);
69 if (op->op_flags & OPf_REF)
71 if (GIMME == G_ARRAY) { /* array wanted */
72 RETURNOP(do_kv(ARGS));
75 SV* sv = sv_newmortal();
76 if (HvFILL((HV*)TARG)) {
77 sprintf(buf, "%d/%d", HvFILL((HV*)TARG), HvMAX((HV*)TARG)+1);
89 DIE("NOT IMPL LINE %d",__LINE__);
101 if (SvTYPE(sv) != SVt_PVGV)
102 DIE("Not a GLOB reference");
105 if (SvTYPE(sv) != SVt_PVGV) {
108 if (SvGMAGICAL(sv)) {
114 if (op->op_flags & OPf_REF ||
115 op->op_private & HINT_STRICT_REFS)
116 DIE(no_usym, "a symbol");
120 if (op->op_private & HINT_STRICT_REFS)
121 DIE(no_symref, sym, "a symbol");
122 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
125 if (op->op_private & OPpLVAL_INTRO) {
129 SSPUSHPTR(SvREFCNT_inc(sv));
133 if (op->op_flags & OPf_SPECIAL) {
134 GvGP(sv)->gp_refcnt++; /* will soon be assigned */
135 GvFLAGS(sv) |= GVf_INTRO;
142 GvSV(sv) = NEWSV(72,0);
143 GvLINE(sv) = curcop->cop_line;
158 switch (SvTYPE(sv)) {
162 DIE("Not a SCALAR reference");
169 if (SvTYPE(gv) != SVt_PVGV) {
170 if (SvGMAGICAL(sv)) {
176 if (op->op_flags & OPf_REF ||
177 op->op_private & HINT_STRICT_REFS)
178 DIE(no_usym, "a SCALAR");
182 if (op->op_private & HINT_STRICT_REFS)
183 DIE(no_symref, sym, "a SCALAR");
184 gv = (SV*)gv_fetchpv(sym, TRUE, SVt_PV);
188 if (op->op_flags & OPf_MOD) {
189 if (op->op_private & OPpLVAL_INTRO)
190 sv = save_scalar((GV*)TOPs);
191 else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV))
202 SV *sv = AvARYLEN(av);
204 AvARYLEN(av) = sv = NEWSV(0,0);
205 sv_upgrade(sv, SVt_IV);
206 sv_magic(sv, (SV*)av, '#', Nullch, 0);
214 dSP; dTARGET; dPOPss;
216 if (op->op_flags & OPf_MOD) {
219 PUSHs(TARG); /* no SvSETMAGIC */
225 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
226 mg = mg_find(sv, 'g');
227 if (mg && mg->mg_len >= 0) {
228 PUSHi(mg->mg_len + curcop->cop_arybase);
242 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
243 /* (But not in defined().) */
244 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
261 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
262 if (cv && SvPOK(cv)) {
264 ret = sv_2mortal(newSVpv(p ? p : "", SvLEN(cv)));
273 CV* cv = (CV*)cSVOP->op_sv;
276 if (SvFLAGS(cv) & SVpcv_CLONE) {
277 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
289 sv_upgrade(rv, SVt_RV);
294 (void)SvREFCNT_inc(sv);
307 if (GIMME != G_ARRAY) {
314 sv_upgrade(rv, SVt_RV);
319 (void)SvREFCNT_inc(sv);
335 if (!sv || !SvROK(sv))
339 pv = sv_reftype(sv,TRUE);
340 PUSHp(pv, strlen(pv));
350 stash = curcop->cop_stash;
352 stash = gv_stashsv(POPs, TRUE);
354 (void)sv_bless(TOPs, stash);
358 /* Pattern matching */
363 register unsigned char *s;
366 register I32 *sfirst;
371 s = (unsigned char*)(SvPV(sv, len));
373 if (sv == lastscream)
377 SvSCREAM_off(lastscream);
378 SvREFCNT_dec(lastscream);
380 lastscream = SvREFCNT_inc(sv);
386 if (pos > maxscream) {
388 maxscream = pos + 80;
389 New(301, screamfirst, 256, I32);
390 New(302, screamnext, maxscream, I32);
393 maxscream = pos + pos / 4;
394 Renew(screamnext, maxscream, I32);
398 sfirst = screamfirst;
401 if (!sfirst || !snext)
402 DIE("do_study: out of memory");
404 for (ch = 256; ch; --ch)
411 snext[pos] = sfirst[ch] - pos;
416 /* If there were any case insensitive searches, we must assume they
417 * all are. This speeds up insensitive searches much more than
418 * it slows down sensitive ones.
421 sfirst[fold[ch]] = pos;
425 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
428 XPUSHs(sv_2mortal(newSViv((I32)retval)));
437 if (op->op_flags & OPf_STACKED)
443 TARG = sv_newmortal();
444 PUSHi(do_trans(sv, op));
448 /* Lvalue operators. */
470 SETi(do_chomp(TOPs));
477 register I32 count = 0;
480 count += do_chomp(POPs);
491 if (!sv || !SvANY(sv))
493 switch (SvTYPE(sv)) {
495 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
499 if (HvARRAY(sv) || SvRMAGICAL(sv))
503 if (CvROOT(sv) || CvXSUB(sv))
527 if (SvTHINKFIRST(sv)) {
534 switch (SvTYPE(sv)) {
549 sv_setsv(sv, &sv_undef);
553 if (SvPOK(sv) && SvLEN(sv)) {
556 SvPV_set(sv, Nullch);
571 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
582 sv_setsv(TARG, TOPs);
585 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
599 sv_setsv(TARG, TOPs);
602 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
611 /* Ordinary operators. */
615 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
618 SETn( pow( left, right) );
625 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
628 SETn( left * right );
635 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
639 DIE("Illegal division by zero");
641 /* insure that 20./5. == 4. */
646 if ((double)I_32(x) == x &&
647 (double)I_32(value) == value &&
648 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
655 value = POPn / value;
664 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
666 register unsigned long tmpulong;
667 register long tmplong;
670 tmpulong = (unsigned long) POPn;
672 DIE("Illegal modulus zero");
675 value = (I32)(((unsigned long)value) % tmpulong);
677 tmplong = (long)value;
678 value = (I32)(tmpulong - ((-tmplong - 1) % tmpulong)) - 1;
687 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
689 register I32 count = POPi;
690 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
692 I32 items = SP - MARK;
704 repeatcpy((char*)(MARK + items), (char*)MARK,
705 items * sizeof(SV*), count - 1);
711 else { /* Note: mark already snarfed by pp_list */
716 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
717 if (SvREADONLY(tmpstr) && curcop != &compiling)
718 DIE("Can't x= to readonly value");
722 SvSetSV(TARG, tmpstr);
723 SvPV_force(TARG, len);
725 SvGROW(TARG, (count * len) + 1);
727 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
728 SvCUR(TARG) *= count;
730 (void)SvPOK_only(TARG);
733 sv_setsv(TARG, &sv_no);
742 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
745 SETn( left - right );
752 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
755 SETi( left << right );
762 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
765 SETi( left >> right );
772 dSP; tryAMAGICbinSET(lt,0);
775 SETs((TOPn < value) ? &sv_yes : &sv_no);
782 dSP; tryAMAGICbinSET(gt,0);
785 SETs((TOPn > value) ? &sv_yes : &sv_no);
792 dSP; tryAMAGICbinSET(le,0);
795 SETs((TOPn <= value) ? &sv_yes : &sv_no);
802 dSP; tryAMAGICbinSET(ge,0);
805 SETs((TOPn >= value) ? &sv_yes : &sv_no);
812 dSP; tryAMAGICbinSET(ne,0);
815 SETs((TOPn != value) ? &sv_yes : &sv_no);
822 dSP; dTARGET; tryAMAGICbin(ncmp,0);
829 else if (left < right)
840 dSP; tryAMAGICbinSET(slt,0);
843 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
850 dSP; tryAMAGICbinSET(sgt,0);
853 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
860 dSP; tryAMAGICbinSET(sle,0);
863 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
870 dSP; tryAMAGICbinSET(sge,0);
873 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
880 dSP; tryAMAGICbinSET(sne,0);
883 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
890 dSP; dTARGET; tryAMAGICbin(scmp,0);
893 SETi( sv_cmp(left, right) );
899 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
902 if (SvNIOKp(left) || SvNIOKp(right)) {
903 unsigned long value = U_L(SvNV(left));
904 value = value & U_L(SvNV(right));
908 do_vop(op->op_type, TARG, left, right);
917 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
920 if (SvNIOKp(left) || SvNIOKp(right)) {
921 unsigned long value = U_L(SvNV(left));
922 value = value ^ U_L(SvNV(right));
926 do_vop(op->op_type, TARG, left, right);
935 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
938 if (SvNIOKp(left) || SvNIOKp(right)) {
939 unsigned long value = U_L(SvNV(left));
940 value = value | U_L(SvNV(right));
944 do_vop(op->op_type, TARG, left, right);
953 dSP; dTARGET; tryAMAGICun(neg);
960 else if (SvPOKp(sv)) {
962 char *s = SvPV(sv, len);
963 if (isALPHA(*s) || *s == '_') {
964 sv_setpvn(TARG, "-", 1);
967 else if (*s == '+' || *s == '-') {
969 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
972 sv_setnv(TARG, -SvNV(sv));
984 dSP; tryAMAGICunSET(not);
985 #endif /* OVERLOAD */
986 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
992 dSP; dTARGET; tryAMAGICun(compl);
1000 SETn( (double) ~U_L(SvNV(sv)) );
1005 register char *tmps;
1006 register long *tmpl;
1010 tmps = SvPV_force(TARG, len);
1013 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1016 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1020 for ( ; anum > 0; anum--, tmps++)
1029 /* integer versions of some of the above */
1033 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1036 SETi( left * right );
1043 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1047 DIE("Illegal division by zero");
1048 value = POPi / value;
1056 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1059 SETi( left % right );
1066 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1069 SETi( left + right );
1076 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1079 SETi( left - right );
1086 dSP; tryAMAGICbinSET(lt,0);
1089 SETs((left < right) ? &sv_yes : &sv_no);
1096 dSP; tryAMAGICbinSET(gt,0);
1099 SETs((left > right) ? &sv_yes : &sv_no);
1106 dSP; tryAMAGICbinSET(le,0);
1109 SETs((left <= right) ? &sv_yes : &sv_no);
1116 dSP; tryAMAGICbinSET(ge,0);
1119 SETs((left >= right) ? &sv_yes : &sv_no);
1126 dSP; tryAMAGICbinSET(eq,0);
1129 SETs((left == right) ? &sv_yes : &sv_no);
1136 dSP; tryAMAGICbinSET(ne,0);
1139 SETs((left != right) ? &sv_yes : &sv_no);
1146 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1153 else if (left < right)
1164 dSP; dTARGET; tryAMAGICun(neg);
1169 /* High falutin' math. */
1173 dSP; dTARGET; tryAMAGICbin(atan2,0);
1176 SETn(atan2(left, right));
1183 dSP; dTARGET; tryAMAGICun(sin);
1195 dSP; dTARGET; tryAMAGICun(cos);
1216 value = rand() * value / 2147483648.0;
1219 value = rand() * value / 65536.0;
1222 value = rand() * value / 32768.0;
1224 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1251 dSP; dTARGET; tryAMAGICun(exp);
1263 dSP; dTARGET; tryAMAGICun(log);
1268 DIE("Can't take log of %g", value);
1277 dSP; dTARGET; tryAMAGICun(sqrt);
1282 DIE("Can't take sqrt of %g", value);
1283 value = sqrt(value);
1295 (void)modf(value, &value);
1297 (void)modf(-value, &value);
1306 dSP; dTARGET; tryAMAGICun(abs);
1323 unsigned long value;
1327 value = scan_hex(tmps, 99, &argtype);
1338 unsigned long value;
1343 while (*tmps && isSPACE(*tmps))
1348 value = scan_hex(++tmps, 99, &argtype);
1350 value = scan_oct(tmps, 99, &argtype);
1363 SETi( sv_len(TOPs) );
1375 I32 lvalue = op->op_flags & OPf_MOD;
1377 I32 arybase = curcop->cop_arybase;
1381 pos = POPi - arybase;
1383 tmps = SvPV(sv, curlen);
1385 pos += curlen + arybase;
1386 if (pos < 0 || pos > curlen) {
1387 if (dowarn || lvalue)
1388 warn("substr outside of string");
1395 len += curlen - pos;
1400 rem = curlen - pos; /* rem=how many bytes left*/
1403 sv_setpvn(TARG, tmps, rem);
1404 if (lvalue) { /* it's an lvalue! */
1405 if (!SvGMAGICAL(sv))
1406 (void)SvPOK_only(sv);
1407 if (SvTYPE(TARG) < SVt_PVLV) {
1408 sv_upgrade(TARG, SVt_PVLV);
1409 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1414 LvTARGOFF(TARG) = pos;
1415 LvTARGLEN(TARG) = rem;
1418 PUSHs(TARG); /* avoid SvSETMAGIC here */
1425 register I32 size = POPi;
1426 register I32 offset = POPi;
1427 register SV *src = POPs;
1428 I32 lvalue = op->op_flags & OPf_MOD;
1430 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1431 unsigned long retnum;
1434 offset *= size; /* turn into bit offset */
1435 len = (offset + size + 7) / 8;
1436 if (offset < 0 || size < 1)
1439 if (lvalue) { /* it's an lvalue! */
1440 if (SvTYPE(TARG) < SVt_PVLV) {
1441 sv_upgrade(TARG, SVt_PVLV);
1442 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1447 LvTARGOFF(TARG) = offset;
1448 LvTARGLEN(TARG) = size;
1456 if (offset >= srclen)
1459 retnum = (unsigned long) s[offset] << 8;
1461 else if (size == 32) {
1462 if (offset >= srclen)
1464 else if (offset + 1 >= srclen)
1465 retnum = (unsigned long) s[offset] << 24;
1466 else if (offset + 2 >= srclen)
1467 retnum = ((unsigned long) s[offset] << 24) +
1468 ((unsigned long) s[offset + 1] << 16);
1470 retnum = ((unsigned long) s[offset] << 24) +
1471 ((unsigned long) s[offset + 1] << 16) +
1472 (s[offset + 2] << 8);
1477 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1482 else if (size == 16)
1483 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1484 else if (size == 32)
1485 retnum = ((unsigned long) s[offset] << 24) +
1486 ((unsigned long) s[offset + 1] << 16) +
1487 (s[offset + 2] << 8) + s[offset+3];
1491 sv_setiv(TARG, (I32)retnum);
1506 I32 arybase = curcop->cop_arybase;
1511 offset = POPi - arybase;
1514 tmps = SvPV(big, biglen);
1517 else if (offset > biglen)
1519 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1520 (unsigned char*)tmps + biglen, little)))
1521 retval = -1 + arybase;
1523 retval = tmps2 - tmps + arybase;
1540 I32 arybase = curcop->cop_arybase;
1546 tmps2 = SvPV(little, llen);
1547 tmps = SvPV(big, blen);
1551 offset = SvIV(offstr) - arybase + llen;
1554 else if (offset > blen)
1556 if (!(tmps2 = rninstr(tmps, tmps + offset,
1557 tmps2, tmps2 + llen)))
1558 retval = -1 + arybase;
1560 retval = tmps2 - tmps + arybase;
1567 dSP; dMARK; dORIGMARK; dTARGET;
1568 do_sprintf(TARG, SP-MARK, MARK+1);
1582 value = (I32) (*tmps & 255);
1587 value = (I32) (anum & 255);
1598 (void)SvUPGRADE(TARG,SVt_PV);
1604 (void)SvPOK_only(TARG);
1611 dSP; dTARGET; dPOPTOPssrl;
1613 char *tmps = SvPV(left, na);
1615 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1617 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1621 "The crypt() function is unimplemented due to excessive paranoia.");
1633 if (!SvPADTMP(sv)) {
1639 s = SvPV_force(sv, na);
1652 if (!SvPADTMP(sv)) {
1658 s = SvPV_force(sv, na);
1671 register char *send;
1674 if (!SvPADTMP(sv)) {
1680 s = SvPV_force(sv, len);
1695 register char *send;
1698 if (!SvPADTMP(sv)) {
1704 s = SvPV_force(sv, len);
1719 register char *s = SvPV(sv,len);
1723 (void)SvUPGRADE(TARG, SVt_PV);
1724 SvGROW(TARG, (len * 2) + 1);
1732 SvCUR_set(TARG, d - SvPVX(TARG));
1733 (void)SvPOK_only(TARG);
1736 sv_setpvn(TARG, s, len);
1745 dSP; dMARK; dORIGMARK;
1747 register AV* av = (AV*)POPs;
1748 register I32 lval = op->op_flags & OPf_MOD;
1749 I32 arybase = curcop->cop_arybase;
1752 if (SvTYPE(av) == SVt_PVAV) {
1753 if (lval && op->op_private & OPpLVAL_INTRO) {
1755 for (svp = mark + 1; svp <= sp; svp++) {
1760 if (max > AvMAX(av))
1763 while (++MARK <= SP) {
1764 elem = SvIVx(*MARK);
1768 svp = av_fetch(av, elem, lval);
1770 if (!svp || *svp == &sv_undef)
1771 DIE(no_aelem, elem);
1772 if (op->op_private & OPpLVAL_INTRO)
1775 *MARK = svp ? *svp : &sv_undef;
1778 if (GIMME != G_ARRAY) {
1786 /* Associative arrays. */
1791 HV *hash = (HV*)POPs;
1797 entry = hv_iternext(hash); /* might clobber stack_sp */
1802 tmps = hv_iterkey(entry, &i); /* won't clobber stack_sp */
1805 PUSHs(sv_2mortal(newSVpv(tmps, i)));
1806 if (GIMME == G_ARRAY) {
1808 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1813 else if (GIMME == G_SCALAR)
1837 if (SvTYPE(hv) != SVt_PVHV) {
1838 DIE("Not a HASH reference");
1840 tmps = SvPV(tmpsv, len);
1841 sv = hv_delete(hv, tmps, len,
1842 op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0);
1856 if (SvTYPE(hv) != SVt_PVHV) {
1857 DIE("Not a HASH reference");
1859 tmps = SvPV(tmpsv, len);
1860 if (hv_exists(hv, tmps, len))
1867 dSP; dMARK; dORIGMARK;
1869 register HV *hv = (HV*)POPs;
1870 register I32 lval = op->op_flags & OPf_MOD;
1872 if (SvTYPE(hv) == SVt_PVHV) {
1873 while (++MARK <= SP) {
1875 char *key = SvPV(*MARK, keylen);
1877 svp = hv_fetch(hv, key, keylen, lval);
1879 if (!svp || *svp == &sv_undef)
1881 if (op->op_private & OPpLVAL_INTRO)
1884 *MARK = svp ? *svp : &sv_undef;
1887 if (GIMME != G_ARRAY) {
1895 /* List operators. */
1900 if (GIMME != G_ARRAY) {
1902 *MARK = *SP; /* unwanted list, return last item */
1913 SV **lastrelem = stack_sp;
1914 SV **lastlelem = stack_base + POPMARK;
1915 SV **firstlelem = stack_base + POPMARK + 1;
1916 register SV **firstrelem = lastlelem + 1;
1917 I32 arybase = curcop->cop_arybase;
1918 I32 lval = op->op_flags & OPf_MOD;
1919 I32 is_something_there = lval;
1921 register I32 max = lastrelem - lastlelem;
1922 register SV **lelem;
1925 if (GIMME != G_ARRAY) {
1926 ix = SvIVx(*lastlelem);
1931 if (ix < 0 || ix >= max)
1932 *firstlelem = &sv_undef;
1934 *firstlelem = firstrelem[ix];
1940 SP = firstlelem - 1;
1944 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
1950 else if (!(*lelem = firstrelem[ix]))
1955 if (ix >= max || !(*lelem = firstrelem[ix]))
1958 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
1959 is_something_there = TRUE;
1961 if (is_something_there)
1964 SP = firstlelem - 1;
1971 I32 items = SP - MARK;
1973 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
1979 dSP; dMARK; dORIGMARK;
1981 HV* hv = (HV*)sv_2mortal((SV*)newHV());
1986 SV *val = NEWSV(46, 0);
1988 sv_setsv(val, *++MARK);
1990 warn("Odd number of elements in hash list");
1991 tmps = SvPV(key,len);
1992 (void)hv_store(hv,tmps,len,val,0);
2001 dSP; dMARK; dORIGMARK;
2002 register AV *ary = (AV*)*++MARK;
2006 register I32 offset;
2007 register I32 length;
2016 offset = SvIVx(*MARK);
2018 offset += AvFILL(ary) + 1;
2020 offset -= curcop->cop_arybase;
2022 length = SvIVx(*MARK++);
2027 length = AvMAX(ary) + 1; /* close enough to infinity */
2031 length = AvMAX(ary) + 1;
2039 if (offset > AvFILL(ary) + 1)
2040 offset = AvFILL(ary) + 1;
2041 after = AvFILL(ary) + 1 - (offset + length);
2042 if (after < 0) { /* not that much array */
2043 length += after; /* offset+length now in array */
2049 /* At this point, MARK .. SP-1 is our new LIST */
2052 diff = newlen - length;
2054 if (diff < 0) { /* shrinking the area */
2056 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2057 Copy(MARK, tmparyval, newlen, SV*);
2060 MARK = ORIGMARK + 1;
2061 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2062 MEXTEND(MARK, length);
2063 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2065 for (i = length, dst = MARK; i; i--)
2066 sv_2mortal(*dst++); /* free them eventualy */
2071 *MARK = AvARRAY(ary)[offset+length-1];
2074 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2075 SvREFCNT_dec(*dst++); /* free them now */
2078 AvFILL(ary) += diff;
2080 /* pull up or down? */
2082 if (offset < after) { /* easier to pull up */
2083 if (offset) { /* esp. if nothing to pull */
2084 src = &AvARRAY(ary)[offset-1];
2085 dst = src - diff; /* diff is negative */
2086 for (i = offset; i > 0; i--) /* can't trust Copy */
2090 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2094 if (after) { /* anything to pull down? */
2095 src = AvARRAY(ary) + offset + length;
2096 dst = src + diff; /* diff is negative */
2097 Move(src, dst, after, SV*);
2099 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2100 /* avoid later double free */
2104 dst[--i] = &sv_undef;
2107 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2109 *dst = NEWSV(46, 0);
2110 sv_setsv(*dst++, *src++);
2112 Safefree(tmparyval);
2115 else { /* no, expanding (or same) */
2117 New(452, tmparyval, length, SV*); /* so remember deletion */
2118 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2121 if (diff > 0) { /* expanding */
2123 /* push up or down? */
2125 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2129 Move(src, dst, offset, SV*);
2131 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2133 AvFILL(ary) += diff;
2136 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2137 av_extend(ary, AvFILL(ary) + diff);
2138 AvFILL(ary) += diff;
2141 dst = AvARRAY(ary) + AvFILL(ary);
2143 for (i = after; i; i--) {
2150 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2151 *dst = NEWSV(46, 0);
2152 sv_setsv(*dst++, *src++);
2154 MARK = ORIGMARK + 1;
2155 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2157 Copy(tmparyval, MARK, length, SV*);
2159 for (i = length, dst = MARK; i; i--)
2160 sv_2mortal(*dst++); /* free them eventualy */
2162 Safefree(tmparyval);
2166 else if (length--) {
2167 *MARK = tmparyval[length];
2170 while (length-- > 0)
2171 SvREFCNT_dec(tmparyval[length]);
2173 Safefree(tmparyval);
2184 dSP; dMARK; dORIGMARK; dTARGET;
2185 register AV *ary = (AV*)*++MARK;
2186 register SV *sv = &sv_undef;
2188 for (++MARK; MARK <= SP; MARK++) {
2191 sv_setsv(sv, *MARK);
2195 PUSHi( AvFILL(ary) + 1 );
2203 SV *sv = av_pop(av);
2204 if (sv != &sv_undef && AvREAL(av))
2205 (void)sv_2mortal(sv);
2214 SV *sv = av_shift(av);
2218 if (sv != &sv_undef && AvREAL(av))
2219 (void)sv_2mortal(sv);
2226 dSP; dMARK; dORIGMARK; dTARGET;
2227 register AV *ary = (AV*)*++MARK;
2231 av_unshift(ary, SP - MARK);
2234 sv_setsv(sv, *++MARK);
2235 (void)av_store(ary, i++, sv);
2239 PUSHi( AvFILL(ary) + 1 );
2249 if (GIMME == G_ARRAY) {
2260 register char *down;
2266 do_join(TARG, &sv_no, MARK, SP);
2268 sv_setsv(TARG, *SP);
2269 up = SvPV_force(TARG, len);
2271 down = SvPVX(TARG) + len - 1;
2277 (void)SvPOK_only(TARG);
2285 /* Explosives and implosives. */
2294 register char *pat = SvPV(left, llen);
2295 register char *s = SvPV(right, rlen);
2296 char *strend = s + rlen;
2298 register char *patend = pat + llen;
2303 /* These must not be in registers: */
2314 unsigned Quad_t auquad;
2320 register U32 culong;
2322 static char* bitcount = 0;
2324 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2326 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2327 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2329 while (isDIGIT(*patend) || *patend == '*')
2335 while (pat < patend) {
2340 else if (*pat == '*') {
2341 len = strend - strbeg; /* long enough */
2344 else if (isDIGIT(*pat)) {
2346 while (isDIGIT(*pat))
2347 len = (len * 10) + (*pat++ - '0');
2350 len = (datumtype != '@');
2355 if (len == 1 && pat[-1] != '1')
2364 if (len > strend - strbeg)
2365 DIE("@ outside of string");
2369 if (len > s - strbeg)
2370 DIE("X outside of string");
2374 if (len > strend - s)
2375 DIE("x outside of string");
2380 if (len > strend - s)
2383 goto uchar_checksum;
2384 sv = NEWSV(35, len);
2385 sv_setpvn(sv, s, len);
2387 if (datumtype == 'A') {
2388 aptr = s; /* borrow register */
2389 s = SvPVX(sv) + len - 1;
2390 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2393 SvCUR_set(sv, s - SvPVX(sv));
2394 s = aptr; /* unborrow register */
2396 XPUSHs(sv_2mortal(sv));
2400 if (pat[-1] == '*' || len > (strend - s) * 8)
2401 len = (strend - s) * 8;
2404 Newz(601, bitcount, 256, char);
2405 for (bits = 1; bits < 256; bits++) {
2406 if (bits & 1) bitcount[bits]++;
2407 if (bits & 2) bitcount[bits]++;
2408 if (bits & 4) bitcount[bits]++;
2409 if (bits & 8) bitcount[bits]++;
2410 if (bits & 16) bitcount[bits]++;
2411 if (bits & 32) bitcount[bits]++;
2412 if (bits & 64) bitcount[bits]++;
2413 if (bits & 128) bitcount[bits]++;
2417 culong += bitcount[*(unsigned char*)s++];
2422 if (datumtype == 'b') {
2424 if (bits & 1) culong++;
2430 if (bits & 128) culong++;
2437 sv = NEWSV(35, len + 1);
2440 aptr = pat; /* borrow register */
2442 if (datumtype == 'b') {
2444 for (len = 0; len < aint; len++) {
2445 if (len & 7) /*SUPPRESS 595*/
2449 *pat++ = '0' + (bits & 1);
2454 for (len = 0; len < aint; len++) {
2459 *pat++ = '0' + ((bits & 128) != 0);
2463 pat = aptr; /* unborrow register */
2464 XPUSHs(sv_2mortal(sv));
2468 if (pat[-1] == '*' || len > (strend - s) * 2)
2469 len = (strend - s) * 2;
2470 sv = NEWSV(35, len + 1);
2473 aptr = pat; /* borrow register */
2475 if (datumtype == 'h') {
2477 for (len = 0; len < aint; len++) {
2482 *pat++ = hexdigit[bits & 15];
2487 for (len = 0; len < aint; len++) {
2492 *pat++ = hexdigit[(bits >> 4) & 15];
2496 pat = aptr; /* unborrow register */
2497 XPUSHs(sv_2mortal(sv));
2500 if (len > strend - s)
2505 if (aint >= 128) /* fake up signed chars */
2514 if (aint >= 128) /* fake up signed chars */
2517 sv_setiv(sv, (I32)aint);
2518 PUSHs(sv_2mortal(sv));
2523 if (len > strend - s)
2537 sv_setiv(sv, (I32)auint);
2538 PUSHs(sv_2mortal(sv));
2543 along = (strend - s) / sizeof(I16);
2548 Copy(s, &ashort, 1, I16);
2556 Copy(s, &ashort, 1, I16);
2559 sv_setiv(sv, (I32)ashort);
2560 PUSHs(sv_2mortal(sv));
2567 along = (strend - s) / sizeof(U16);
2572 Copy(s, &aushort, 1, U16);
2575 if (datumtype == 'n')
2576 aushort = ntohs(aushort);
2579 if (datumtype == 'v')
2580 aushort = vtohs(aushort);
2588 Copy(s, &aushort, 1, U16);
2592 if (datumtype == 'n')
2593 aushort = ntohs(aushort);
2596 if (datumtype == 'v')
2597 aushort = vtohs(aushort);
2599 sv_setiv(sv, (I32)aushort);
2600 PUSHs(sv_2mortal(sv));
2605 along = (strend - s) / sizeof(int);
2610 Copy(s, &aint, 1, int);
2613 cdouble += (double)aint;
2621 Copy(s, &aint, 1, int);
2624 sv_setiv(sv, (I32)aint);
2625 PUSHs(sv_2mortal(sv));
2630 along = (strend - s) / sizeof(unsigned int);
2635 Copy(s, &auint, 1, unsigned int);
2636 s += sizeof(unsigned int);
2638 cdouble += (double)auint;
2646 Copy(s, &auint, 1, unsigned int);
2647 s += sizeof(unsigned int);
2649 sv_setiv(sv, (I32)auint);
2650 PUSHs(sv_2mortal(sv));
2655 along = (strend - s) / sizeof(I32);
2660 Copy(s, &along, 1, I32);
2663 cdouble += (double)along;
2671 Copy(s, &along, 1, I32);
2674 sv_setiv(sv, (I32)along);
2675 PUSHs(sv_2mortal(sv));
2682 along = (strend - s) / sizeof(U32);
2687 Copy(s, &aulong, 1, U32);
2690 if (datumtype == 'N')
2691 aulong = ntohl(aulong);
2694 if (datumtype == 'V')
2695 aulong = vtohl(aulong);
2698 cdouble += (double)aulong;
2706 Copy(s, &aulong, 1, U32);
2710 if (datumtype == 'N')
2711 aulong = ntohl(aulong);
2714 if (datumtype == 'V')
2715 aulong = vtohl(aulong);
2717 sv_setnv(sv, (double)aulong);
2718 PUSHs(sv_2mortal(sv));
2723 along = (strend - s) / sizeof(char*);
2728 if (sizeof(char*) > strend - s)
2731 Copy(s, &aptr, 1, char*);
2737 PUSHs(sv_2mortal(sv));
2742 if (sizeof(char*) > strend - s)
2745 Copy(s, &aptr, 1, char*);
2750 sv_setpvn(sv, aptr, len);
2751 PUSHs(sv_2mortal(sv));
2757 if (s + sizeof(Quad_t) > strend)
2760 Copy(s, &aquad, 1, Quad_t);
2761 s += sizeof(Quad_t);
2764 sv_setiv(sv, (IV)aquad);
2765 PUSHs(sv_2mortal(sv));
2771 if (s + sizeof(unsigned Quad_t) > strend)
2774 Copy(s, &auquad, 1, unsigned Quad_t);
2775 s += sizeof(unsigned Quad_t);
2778 sv_setiv(sv, (IV)auquad);
2779 PUSHs(sv_2mortal(sv));
2783 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2786 along = (strend - s) / sizeof(float);
2791 Copy(s, &afloat, 1, float);
2799 Copy(s, &afloat, 1, float);
2802 sv_setnv(sv, (double)afloat);
2803 PUSHs(sv_2mortal(sv));
2809 along = (strend - s) / sizeof(double);
2814 Copy(s, &adouble, 1, double);
2815 s += sizeof(double);
2822 Copy(s, &adouble, 1, double);
2823 s += sizeof(double);
2825 sv_setnv(sv, (double)adouble);
2826 PUSHs(sv_2mortal(sv));
2831 along = (strend - s) * 3 / 4;
2832 sv = NEWSV(42, along);
2833 while (s < strend && *s > ' ' && *s < 'a') {
2838 len = (*s++ - ' ') & 077;
2840 if (s < strend && *s >= ' ')
2841 a = (*s++ - ' ') & 077;
2844 if (s < strend && *s >= ' ')
2845 b = (*s++ - ' ') & 077;
2848 if (s < strend && *s >= ' ')
2849 c = (*s++ - ' ') & 077;
2852 if (s < strend && *s >= ' ')
2853 d = (*s++ - ' ') & 077;
2856 hunk[0] = a << 2 | b >> 4;
2857 hunk[1] = b << 4 | c >> 2;
2858 hunk[2] = c << 6 | d;
2859 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2864 else if (s[1] == '\n') /* possible checksum byte */
2867 XPUSHs(sv_2mortal(sv));
2872 if (strchr("fFdD", datumtype) ||
2873 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
2877 while (checksum >= 16) {
2881 while (checksum >= 4) {
2887 along = (1 << checksum) - 1;
2888 while (cdouble < 0.0)
2890 cdouble = modf(cdouble / adouble, &trouble) * adouble;
2891 sv_setnv(sv, cdouble);
2894 if (checksum < 32) {
2895 along = (1 << checksum) - 1;
2896 culong &= (U32)along;
2898 sv_setnv(sv, (double)culong);
2900 XPUSHs(sv_2mortal(sv));
2908 doencodes(sv, s, len)
2916 sv_catpvn(sv, hunk, 1);
2919 hunk[0] = ' ' + (077 & (*s >> 2));
2920 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
2921 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
2922 hunk[3] = ' ' + (077 & (s[2] & 077));
2923 sv_catpvn(sv, hunk, 4);
2927 for (s = SvPVX(sv); *s; s++) {
2931 sv_catpvn(sv, "\n", 1);
2936 dSP; dMARK; dORIGMARK; dTARGET;
2937 register SV *cat = TARG;
2940 register char *pat = SvPVx(*++MARK, fromlen);
2941 register char *patend = pat + fromlen;
2946 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
2947 static char *space10 = " ";
2949 /* These must not be in registers: */
2958 unsigned Quad_t auquad;
2966 sv_setpvn(cat, "", 0);
2967 while (pat < patend) {
2968 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
2971 len = strchr("@Xxu", datumtype) ? 0 : items;
2974 else if (isDIGIT(*pat)) {
2976 while (isDIGIT(*pat))
2977 len = (len * 10) + (*pat++ - '0');
2985 DIE("%% may only be used in unpack");
2996 if (SvCUR(cat) < len)
2997 DIE("X outside of string");
3004 sv_catpvn(cat, null10, 10);
3007 sv_catpvn(cat, null10, len);
3012 aptr = SvPV(fromstr, fromlen);
3016 sv_catpvn(cat, aptr, len);
3018 sv_catpvn(cat, aptr, fromlen);
3020 if (datumtype == 'A') {
3022 sv_catpvn(cat, space10, 10);
3025 sv_catpvn(cat, space10, len);
3029 sv_catpvn(cat, null10, 10);
3032 sv_catpvn(cat, null10, len);
3039 char *savepat = pat;
3044 aptr = SvPV(fromstr, fromlen);
3049 SvCUR(cat) += (len+7)/8;
3050 SvGROW(cat, SvCUR(cat) + 1);
3051 aptr = SvPVX(cat) + aint;
3056 if (datumtype == 'B') {
3057 for (len = 0; len++ < aint;) {
3058 items |= *pat++ & 1;
3062 *aptr++ = items & 0xff;
3068 for (len = 0; len++ < aint;) {
3074 *aptr++ = items & 0xff;
3080 if (datumtype == 'B')
3081 items <<= 7 - (aint & 7);
3083 items >>= 7 - (aint & 7);
3084 *aptr++ = items & 0xff;
3086 pat = SvPVX(cat) + SvCUR(cat);
3097 char *savepat = pat;
3102 aptr = SvPV(fromstr, fromlen);
3107 SvCUR(cat) += (len+1)/2;
3108 SvGROW(cat, SvCUR(cat) + 1);
3109 aptr = SvPVX(cat) + aint;
3114 if (datumtype == 'H') {
3115 for (len = 0; len++ < aint;) {
3117 items |= ((*pat++ & 15) + 9) & 15;
3119 items |= *pat++ & 15;
3123 *aptr++ = items & 0xff;
3129 for (len = 0; len++ < aint;) {
3131 items |= (((*pat++ & 15) + 9) & 15) << 4;
3133 items |= (*pat++ & 15) << 4;
3137 *aptr++ = items & 0xff;
3143 *aptr++ = items & 0xff;
3144 pat = SvPVX(cat) + SvCUR(cat);
3156 aint = SvIV(fromstr);
3158 sv_catpvn(cat, &achar, sizeof(char));
3161 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3166 afloat = (float)SvNV(fromstr);
3167 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3174 adouble = (double)SvNV(fromstr);
3175 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3181 ashort = (I16)SvIV(fromstr);
3183 ashort = htons(ashort);
3185 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3191 ashort = (I16)SvIV(fromstr);
3193 ashort = htovs(ashort);
3195 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3202 ashort = (I16)SvIV(fromstr);
3203 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3209 auint = U_I(SvNV(fromstr));
3210 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3216 aint = SvIV(fromstr);
3217 sv_catpvn(cat, (char*)&aint, sizeof(int));
3223 aulong = U_L(SvNV(fromstr));
3225 aulong = htonl(aulong);
3227 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3233 aulong = U_L(SvNV(fromstr));
3235 aulong = htovl(aulong);
3237 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3243 aulong = U_L(SvNV(fromstr));
3244 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3250 along = SvIV(fromstr);
3251 sv_catpvn(cat, (char*)&along, sizeof(I32));
3258 auquad = (unsigned Quad_t)SvIV(fromstr);
3259 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3265 aquad = (Quad_t)SvIV(fromstr);
3266 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3269 #endif /* HAS_QUAD */
3271 len = 1; /* assume SV is correct length */
3276 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3277 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3282 aptr = SvPV(fromstr, fromlen);
3283 SvGROW(cat, fromlen * 4 / 3);
3288 while (fromlen > 0) {
3295 doencodes(cat, aptr, todo);
3313 register I32 limit = POPi; /* note, negative is forever */
3316 register char *s = SvPV(sv, len);
3317 char *strend = s + len;
3318 register PMOP *pm = (PMOP*)POPs;
3322 I32 maxiters = (strend - s) + 10;
3325 I32 origlimit = limit;
3328 AV *oldstack = stack;
3329 register REGEXP *rx = pm->op_pmregexp;
3331 I32 oldsave = savestack_ix;
3334 DIE("panic: do_split");
3335 if (pm->op_pmreplroot)
3336 ary = GvAVn((GV*)pm->op_pmreplroot);
3337 else if (gimme != G_ARRAY)
3341 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3345 for (i = AvFILL(ary); i >= 0; i--)
3346 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3350 /* temporarily switch stacks */
3351 SWITCHSTACK(stack, ary);
3353 base = SP - stack_base;
3355 if (pm->op_pmflags & PMf_SKIPWHITE) {
3359 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3361 multiline = pm->op_pmflags & PMf_MULTILINE;
3365 limit = maxiters + 2;
3366 if (pm->op_pmflags & PMf_WHITE) {
3369 for (m = s; m < strend && !isSPACE(*m); m++) ;
3372 dstr = NEWSV(30, m-s);
3373 sv_setpvn(dstr, s, m-s);
3378 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3381 else if (strEQ("^", rx->precomp)) {
3384 for (m = s; m < strend && *m != '\n'; m++) ;
3388 dstr = NEWSV(30, m-s);
3389 sv_setpvn(dstr, s, m-s);
3396 else if (pm->op_pmshort) {
3397 i = SvCUR(pm->op_pmshort);
3399 I32 fold = (pm->op_pmflags & PMf_FOLD);
3400 i = *SvPVX(pm->op_pmshort);
3401 if (fold && isUPPER(i))
3406 m < strend && *m != i &&
3407 (!isUPPER(*m) || toLOWER(*m) != i);
3408 m++) /*SUPPRESS 530*/
3411 else /*SUPPRESS 530*/
3412 for (m = s; m < strend && *m != i; m++) ;
3415 dstr = NEWSV(30, m-s);
3416 sv_setpvn(dstr, s, m-s);
3425 while (s < strend && --limit &&
3426 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3430 dstr = NEWSV(31, m-s);
3431 sv_setpvn(dstr, s, m-s);
3440 maxiters += (strend - s) * rx->nparens;
3441 while (s < strend && --limit &&
3442 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3444 && rx->subbase != orig) {
3449 strend = s + (strend - m);
3452 dstr = NEWSV(32, m-s);
3453 sv_setpvn(dstr, s, m-s);
3458 for (i = 1; i <= rx->nparens; i++) {
3462 dstr = NEWSV(33, m-s);
3463 sv_setpvn(dstr, s, m-s);
3466 dstr = NEWSV(33, 0);
3475 LEAVE_SCOPE(oldsave);
3476 iters = (SP - stack_base) - base;
3477 if (iters > maxiters)
3480 /* keep field after final delim? */
3481 if (s < strend || (iters && origlimit)) {
3482 dstr = NEWSV(34, strend-s);
3483 sv_setpvn(dstr, s, strend-s);
3489 else if (!origlimit) {
3490 while (iters > 0 && SvCUR(TOPs) == 0)
3494 SWITCHSTACK(ary, oldstack);
3495 if (gimme == G_ARRAY) {
3497 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3503 if (gimme == G_ARRAY)
3506 if (iters || !pm->op_pmreplroot) {