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 */
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;
277 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
288 sv_upgrade(rv, SVt_RV);
293 (void)SvREFCNT_inc(sv);
306 if (GIMME != G_ARRAY) {
313 sv_upgrade(rv, SVt_RV);
318 (void)SvREFCNT_inc(sv);
334 if (!sv || !SvROK(sv))
338 pv = sv_reftype(sv,TRUE);
339 PUSHp(pv, strlen(pv));
349 stash = curcop->cop_stash;
351 stash = gv_stashsv(POPs, TRUE);
353 (void)sv_bless(TOPs, stash);
357 /* Pattern matching */
362 register unsigned char *s;
365 register I32 *sfirst;
370 s = (unsigned char*)(SvPV(sv, len));
372 if (sv == lastscream)
376 SvSCREAM_off(lastscream);
377 SvREFCNT_dec(lastscream);
379 lastscream = SvREFCNT_inc(sv);
385 if (pos > maxscream) {
387 maxscream = pos + 80;
388 New(301, screamfirst, 256, I32);
389 New(302, screamnext, maxscream, I32);
392 maxscream = pos + pos / 4;
393 Renew(screamnext, maxscream, I32);
397 sfirst = screamfirst;
400 if (!sfirst || !snext)
401 DIE("do_study: out of memory");
403 for (ch = 256; ch; --ch)
410 snext[pos] = sfirst[ch] - pos;
415 /* If there were any case insensitive searches, we must assume they
416 * all are. This speeds up insensitive searches much more than
417 * it slows down sensitive ones.
420 sfirst[fold[ch]] = pos;
424 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
427 XPUSHs(sv_2mortal(newSViv((I32)retval)));
436 if (op->op_flags & OPf_STACKED)
442 TARG = sv_newmortal();
443 PUSHi(do_trans(sv, op));
447 /* Lvalue operators. */
469 SETi(do_chomp(TOPs));
476 register I32 count = 0;
479 count += do_chomp(POPs);
490 if (!sv || !SvANY(sv))
492 switch (SvTYPE(sv)) {
494 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
498 if (HvARRAY(sv) || SvRMAGICAL(sv))
502 if (CvROOT(sv) || CvXSUB(sv))
526 if (SvTHINKFIRST(sv)) {
533 switch (SvTYPE(sv)) {
548 sv_setsv(sv, &sv_undef);
552 if (SvPOK(sv) && SvLEN(sv)) {
555 SvPV_set(sv, Nullch);
570 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
581 sv_setsv(TARG, TOPs);
584 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
598 sv_setsv(TARG, TOPs);
601 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
610 /* Ordinary operators. */
614 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
617 SETn( pow( left, right) );
624 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
627 SETn( left * right );
634 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
638 DIE("Illegal division by zero");
640 /* insure that 20./5. == 4. */
645 if ((double)I_32(x) == x &&
646 (double)I_32(value) == value &&
647 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
654 value = POPn / value;
663 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
665 register unsigned long tmpulong;
666 register long tmplong;
669 tmpulong = (unsigned long) POPn;
671 DIE("Illegal modulus zero");
674 value = (I32)(((unsigned long)value) % tmpulong);
676 tmplong = (long)value;
677 value = (I32)(tmpulong - ((-tmplong - 1) % tmpulong)) - 1;
686 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
688 register I32 count = POPi;
689 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
691 I32 items = SP - MARK;
703 repeatcpy((char*)(MARK + items), (char*)MARK,
704 items * sizeof(SV*), count - 1);
710 else { /* Note: mark already snarfed by pp_list */
715 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
716 if (SvREADONLY(tmpstr) && curcop != &compiling)
717 DIE("Can't x= to readonly value");
721 SvSetSV(TARG, tmpstr);
722 SvPV_force(TARG, len);
724 SvGROW(TARG, (count * len) + 1);
726 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
727 SvCUR(TARG) *= count;
729 (void)SvPOK_only(TARG);
732 sv_setsv(TARG, &sv_no);
741 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
744 SETn( left - right );
751 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
754 SETi( left << right );
761 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
764 SETi( left >> right );
771 dSP; tryAMAGICbinSET(lt,0);
774 SETs((TOPn < value) ? &sv_yes : &sv_no);
781 dSP; tryAMAGICbinSET(gt,0);
784 SETs((TOPn > value) ? &sv_yes : &sv_no);
791 dSP; tryAMAGICbinSET(le,0);
794 SETs((TOPn <= value) ? &sv_yes : &sv_no);
801 dSP; tryAMAGICbinSET(ge,0);
804 SETs((TOPn >= value) ? &sv_yes : &sv_no);
811 dSP; tryAMAGICbinSET(ne,0);
814 SETs((TOPn != value) ? &sv_yes : &sv_no);
821 dSP; dTARGET; tryAMAGICbin(ncmp,0);
828 else if (left < right)
839 dSP; tryAMAGICbinSET(slt,0);
842 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
849 dSP; tryAMAGICbinSET(sgt,0);
852 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
859 dSP; tryAMAGICbinSET(sle,0);
862 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
869 dSP; tryAMAGICbinSET(sge,0);
872 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
879 dSP; tryAMAGICbinSET(sne,0);
882 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
889 dSP; dTARGET; tryAMAGICbin(scmp,0);
892 SETi( sv_cmp(left, right) );
898 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
901 if (SvNIOKp(left) || SvNIOKp(right)) {
902 unsigned long value = U_L(SvNV(left));
903 value = value & U_L(SvNV(right));
907 do_vop(op->op_type, TARG, left, right);
916 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
919 if (SvNIOKp(left) || SvNIOKp(right)) {
920 unsigned long value = U_L(SvNV(left));
921 value = value ^ U_L(SvNV(right));
925 do_vop(op->op_type, TARG, left, right);
934 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
937 if (SvNIOKp(left) || SvNIOKp(right)) {
938 unsigned long value = U_L(SvNV(left));
939 value = value | U_L(SvNV(right));
943 do_vop(op->op_type, TARG, left, right);
952 dSP; dTARGET; tryAMAGICun(neg);
959 else if (SvPOKp(sv)) {
961 char *s = SvPV(sv, len);
962 if (isALPHA(*s) || *s == '_') {
963 sv_setpvn(TARG, "-", 1);
966 else if (*s == '+' || *s == '-') {
968 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
971 sv_setnv(TARG, -SvNV(sv));
983 dSP; tryAMAGICunSET(not);
984 #endif /* OVERLOAD */
985 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
991 dSP; dTARGET; tryAMAGICun(compl);
999 SETn( (double) ~U_L(SvNV(sv)) );
1004 register char *tmps;
1005 register long *tmpl;
1009 tmps = SvPV_force(TARG, len);
1012 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1015 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1019 for ( ; anum > 0; anum--, tmps++)
1028 /* integer versions of some of the above */
1032 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1035 SETi( left * right );
1042 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1046 DIE("Illegal division by zero");
1047 value = POPi / value;
1055 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1058 SETi( left % right );
1065 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1068 SETi( left + right );
1075 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1078 SETi( left - right );
1085 dSP; tryAMAGICbinSET(lt,0);
1088 SETs((left < right) ? &sv_yes : &sv_no);
1095 dSP; tryAMAGICbinSET(gt,0);
1098 SETs((left > right) ? &sv_yes : &sv_no);
1105 dSP; tryAMAGICbinSET(le,0);
1108 SETs((left <= right) ? &sv_yes : &sv_no);
1115 dSP; tryAMAGICbinSET(ge,0);
1118 SETs((left >= right) ? &sv_yes : &sv_no);
1125 dSP; tryAMAGICbinSET(eq,0);
1128 SETs((left == right) ? &sv_yes : &sv_no);
1135 dSP; tryAMAGICbinSET(ne,0);
1138 SETs((left != right) ? &sv_yes : &sv_no);
1145 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1152 else if (left < right)
1163 dSP; dTARGET; tryAMAGICun(neg);
1168 /* High falutin' math. */
1172 dSP; dTARGET; tryAMAGICbin(atan2,0);
1175 SETn(atan2(left, right));
1182 dSP; dTARGET; tryAMAGICun(sin);
1194 dSP; dTARGET; tryAMAGICun(cos);
1215 value = rand() * value / 2147483648.0;
1218 value = rand() * value / 65536.0;
1221 value = rand() * value / 32768.0;
1223 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1250 dSP; dTARGET; tryAMAGICun(exp);
1262 dSP; dTARGET; tryAMAGICun(log);
1267 DIE("Can't take log of %g", value);
1276 dSP; dTARGET; tryAMAGICun(sqrt);
1281 DIE("Can't take sqrt of %g", value);
1282 value = sqrt(value);
1294 (void)modf(value, &value);
1296 (void)modf(-value, &value);
1305 dSP; dTARGET; tryAMAGICun(abs);
1322 unsigned long value;
1326 value = scan_hex(tmps, 99, &argtype);
1337 unsigned long value;
1342 while (*tmps && isSPACE(*tmps))
1347 value = scan_hex(++tmps, 99, &argtype);
1349 value = scan_oct(tmps, 99, &argtype);
1362 SETi( sv_len(TOPs) );
1374 I32 lvalue = op->op_flags & OPf_MOD;
1376 I32 arybase = curcop->cop_arybase;
1380 pos = POPi - arybase;
1382 tmps = SvPV(sv, curlen);
1384 pos += curlen + arybase;
1385 if (pos < 0 || pos > curlen) {
1386 if (dowarn || lvalue)
1387 warn("substr outside of string");
1394 len += curlen - pos;
1399 rem = curlen - pos; /* rem=how many bytes left*/
1402 sv_setpvn(TARG, tmps, rem);
1403 if (lvalue) { /* it's an lvalue! */
1404 if (!SvGMAGICAL(sv))
1405 (void)SvPOK_only(sv);
1406 if (SvTYPE(TARG) < SVt_PVLV) {
1407 sv_upgrade(TARG, SVt_PVLV);
1408 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1413 LvTARGOFF(TARG) = pos;
1414 LvTARGLEN(TARG) = rem;
1417 PUSHs(TARG); /* avoid SvSETMAGIC here */
1424 register I32 size = POPi;
1425 register I32 offset = POPi;
1426 register SV *src = POPs;
1427 I32 lvalue = op->op_flags & OPf_MOD;
1429 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1430 unsigned long retnum;
1433 offset *= size; /* turn into bit offset */
1434 len = (offset + size + 7) / 8;
1435 if (offset < 0 || size < 1)
1438 if (lvalue) { /* it's an lvalue! */
1439 if (SvTYPE(TARG) < SVt_PVLV) {
1440 sv_upgrade(TARG, SVt_PVLV);
1441 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1446 LvTARGOFF(TARG) = offset;
1447 LvTARGLEN(TARG) = size;
1455 if (offset >= srclen)
1458 retnum = (unsigned long) s[offset] << 8;
1460 else if (size == 32) {
1461 if (offset >= srclen)
1463 else if (offset + 1 >= srclen)
1464 retnum = (unsigned long) s[offset] << 24;
1465 else if (offset + 2 >= srclen)
1466 retnum = ((unsigned long) s[offset] << 24) +
1467 ((unsigned long) s[offset + 1] << 16);
1469 retnum = ((unsigned long) s[offset] << 24) +
1470 ((unsigned long) s[offset + 1] << 16) +
1471 (s[offset + 2] << 8);
1476 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1481 else if (size == 16)
1482 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1483 else if (size == 32)
1484 retnum = ((unsigned long) s[offset] << 24) +
1485 ((unsigned long) s[offset + 1] << 16) +
1486 (s[offset + 2] << 8) + s[offset+3];
1490 sv_setiv(TARG, (I32)retnum);
1505 I32 arybase = curcop->cop_arybase;
1510 offset = POPi - arybase;
1513 tmps = SvPV(big, biglen);
1516 else if (offset > biglen)
1518 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1519 (unsigned char*)tmps + biglen, little)))
1520 retval = -1 + arybase;
1522 retval = tmps2 - tmps + arybase;
1539 I32 arybase = curcop->cop_arybase;
1545 tmps2 = SvPV(little, llen);
1546 tmps = SvPV(big, blen);
1550 offset = SvIV(offstr) - arybase + llen;
1553 else if (offset > blen)
1555 if (!(tmps2 = rninstr(tmps, tmps + offset,
1556 tmps2, tmps2 + llen)))
1557 retval = -1 + arybase;
1559 retval = tmps2 - tmps + arybase;
1566 dSP; dMARK; dORIGMARK; dTARGET;
1567 do_sprintf(TARG, SP-MARK, MARK+1);
1581 value = (I32) (*tmps & 255);
1586 value = (I32) (anum & 255);
1597 (void)SvUPGRADE(TARG,SVt_PV);
1603 (void)SvPOK_only(TARG);
1610 dSP; dTARGET; dPOPTOPssrl;
1612 char *tmps = SvPV(left, na);
1614 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1616 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1620 "The crypt() function is unimplemented due to excessive paranoia.");
1632 if (!SvPADTMP(sv)) {
1638 s = SvPV_force(sv, na);
1651 if (!SvPADTMP(sv)) {
1657 s = SvPV_force(sv, na);
1670 register char *send;
1673 if (!SvPADTMP(sv)) {
1679 s = SvPV_force(sv, len);
1694 register char *send;
1697 if (!SvPADTMP(sv)) {
1703 s = SvPV_force(sv, len);
1718 register char *s = SvPV(sv,len);
1722 (void)SvUPGRADE(TARG, SVt_PV);
1723 SvGROW(TARG, (len * 2) + 1);
1731 SvCUR_set(TARG, d - SvPVX(TARG));
1732 (void)SvPOK_only(TARG);
1735 sv_setpvn(TARG, s, len);
1744 dSP; dMARK; dORIGMARK;
1746 register AV* av = (AV*)POPs;
1747 register I32 lval = op->op_flags & OPf_MOD;
1748 I32 arybase = curcop->cop_arybase;
1751 if (SvTYPE(av) == SVt_PVAV) {
1752 if (lval && op->op_private & OPpLVAL_INTRO) {
1754 for (svp = mark + 1; svp <= sp; svp++) {
1759 if (max > AvMAX(av))
1762 while (++MARK <= SP) {
1763 elem = SvIVx(*MARK);
1767 svp = av_fetch(av, elem, lval);
1769 if (!svp || *svp == &sv_undef)
1770 DIE(no_aelem, elem);
1771 if (op->op_private & OPpLVAL_INTRO)
1774 *MARK = svp ? *svp : &sv_undef;
1777 if (GIMME != G_ARRAY) {
1785 /* Associative arrays. */
1790 HV *hash = (HV*)POPs;
1794 I32 realhv = (SvTYPE(hash) == SVt_PVHV);
1797 /* might clobber stack_sp */
1798 entry = realhv ? hv_iternext(hash) : avhv_iternext((AV*)hash);
1803 tmps = hv_iterkey(entry, &i); /* won't clobber stack_sp */
1806 PUSHs(sv_2mortal(newSVpv(tmps, i)));
1807 if (GIMME == G_ARRAY) {
1809 /* might clobber stack_sp */
1810 sv_setsv(TARG, realhv ?
1811 hv_iterval(hash, entry) : avhv_iterval((AV*)hash, entry));
1816 else if (GIMME == G_SCALAR)
1840 I32 flags = op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0;
1842 tmps = SvPV(tmpsv, len);
1843 if (SvTYPE(hv) == SVt_PVHV)
1844 sv = hv_delete(hv, tmps, len, flags);
1845 else if (SvTYPE(hv) == SVt_PVAV) {
1846 sv = avhv_delete((AV*)hv, tmps, len, flags);
1848 DIE("Not a HASH reference");
1863 tmps = SvPV(tmpsv, len);
1864 if (SvTYPE(hv) == SVt_PVHV) {
1865 if (hv_exists(hv, tmps, len))
1867 } else if (SvTYPE(hv) == SVt_PVAV) {
1868 if (avhv_exists((AV*)hv, tmps, len))
1871 DIE("Not a HASH reference");
1878 dSP; dMARK; dORIGMARK;
1880 register HV *hv = (HV*)POPs;
1881 register I32 lval = op->op_flags & OPf_MOD;
1882 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
1884 if (realhv || SvTYPE(hv) == SVt_PVAV) {
1885 while (++MARK <= SP) {
1887 char *key = SvPV(*MARK, keylen);
1889 svp = realhv ? hv_fetch(hv, key, keylen, lval)
1890 : avhv_fetch((AV*)hv, key, keylen, lval);
1892 if (!svp || *svp == &sv_undef)
1894 if (op->op_private & OPpLVAL_INTRO)
1897 *MARK = svp ? *svp : &sv_undef;
1900 if (GIMME != G_ARRAY) {
1908 /* List operators. */
1913 if (GIMME != G_ARRAY) {
1915 *MARK = *SP; /* unwanted list, return last item */
1926 SV **lastrelem = stack_sp;
1927 SV **lastlelem = stack_base + POPMARK;
1928 SV **firstlelem = stack_base + POPMARK + 1;
1929 register SV **firstrelem = lastlelem + 1;
1930 I32 arybase = curcop->cop_arybase;
1931 I32 lval = op->op_flags & OPf_MOD;
1932 I32 is_something_there = lval;
1934 register I32 max = lastrelem - lastlelem;
1935 register SV **lelem;
1938 if (GIMME != G_ARRAY) {
1939 ix = SvIVx(*lastlelem);
1944 if (ix < 0 || ix >= max)
1945 *firstlelem = &sv_undef;
1947 *firstlelem = firstrelem[ix];
1953 SP = firstlelem - 1;
1957 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
1963 else if (!(*lelem = firstrelem[ix]))
1968 if (ix >= max || !(*lelem = firstrelem[ix]))
1971 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
1972 is_something_there = TRUE;
1974 if (is_something_there)
1977 SP = firstlelem - 1;
1984 I32 items = SP - MARK;
1986 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
1992 dSP; dMARK; dORIGMARK;
1994 HV* hv = (HV*)sv_2mortal((SV*)newHV());
1999 SV *val = NEWSV(46, 0);
2001 sv_setsv(val, *++MARK);
2003 warn("Odd number of elements in hash list");
2004 tmps = SvPV(key,len);
2005 (void)hv_store(hv,tmps,len,val,0);
2014 dSP; dMARK; dORIGMARK;
2015 register AV *ary = (AV*)*++MARK;
2019 register I32 offset;
2020 register I32 length;
2029 offset = SvIVx(*MARK);
2031 offset += AvFILL(ary) + 1;
2033 offset -= curcop->cop_arybase;
2035 length = SvIVx(*MARK++);
2040 length = AvMAX(ary) + 1; /* close enough to infinity */
2044 length = AvMAX(ary) + 1;
2052 if (offset > AvFILL(ary) + 1)
2053 offset = AvFILL(ary) + 1;
2054 after = AvFILL(ary) + 1 - (offset + length);
2055 if (after < 0) { /* not that much array */
2056 length += after; /* offset+length now in array */
2062 /* At this point, MARK .. SP-1 is our new LIST */
2065 diff = newlen - length;
2067 if (diff < 0) { /* shrinking the area */
2069 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2070 Copy(MARK, tmparyval, newlen, SV*);
2073 MARK = ORIGMARK + 1;
2074 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2075 MEXTEND(MARK, length);
2076 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2078 for (i = length, dst = MARK; i; i--)
2079 sv_2mortal(*dst++); /* free them eventualy */
2084 *MARK = AvARRAY(ary)[offset+length-1];
2087 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2088 SvREFCNT_dec(*dst++); /* free them now */
2091 AvFILL(ary) += diff;
2093 /* pull up or down? */
2095 if (offset < after) { /* easier to pull up */
2096 if (offset) { /* esp. if nothing to pull */
2097 src = &AvARRAY(ary)[offset-1];
2098 dst = src - diff; /* diff is negative */
2099 for (i = offset; i > 0; i--) /* can't trust Copy */
2103 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2107 if (after) { /* anything to pull down? */
2108 src = AvARRAY(ary) + offset + length;
2109 dst = src + diff; /* diff is negative */
2110 Move(src, dst, after, SV*);
2112 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2113 /* avoid later double free */
2117 dst[--i] = &sv_undef;
2120 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2122 *dst = NEWSV(46, 0);
2123 sv_setsv(*dst++, *src++);
2125 Safefree(tmparyval);
2128 else { /* no, expanding (or same) */
2130 New(452, tmparyval, length, SV*); /* so remember deletion */
2131 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2134 if (diff > 0) { /* expanding */
2136 /* push up or down? */
2138 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2142 Move(src, dst, offset, SV*);
2144 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2146 AvFILL(ary) += diff;
2149 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2150 av_extend(ary, AvFILL(ary) + diff);
2151 AvFILL(ary) += diff;
2154 dst = AvARRAY(ary) + AvFILL(ary);
2156 for (i = after; i; i--) {
2163 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2164 *dst = NEWSV(46, 0);
2165 sv_setsv(*dst++, *src++);
2167 MARK = ORIGMARK + 1;
2168 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2170 Copy(tmparyval, MARK, length, SV*);
2172 for (i = length, dst = MARK; i; i--)
2173 sv_2mortal(*dst++); /* free them eventualy */
2175 Safefree(tmparyval);
2179 else if (length--) {
2180 *MARK = tmparyval[length];
2183 while (length-- > 0)
2184 SvREFCNT_dec(tmparyval[length]);
2186 Safefree(tmparyval);
2197 dSP; dMARK; dORIGMARK; dTARGET;
2198 register AV *ary = (AV*)*++MARK;
2199 register SV *sv = &sv_undef;
2201 for (++MARK; MARK <= SP; MARK++) {
2204 sv_setsv(sv, *MARK);
2208 PUSHi( AvFILL(ary) + 1 );
2216 SV *sv = av_pop(av);
2217 if (sv != &sv_undef && AvREAL(av))
2218 (void)sv_2mortal(sv);
2227 SV *sv = av_shift(av);
2231 if (sv != &sv_undef && AvREAL(av))
2232 (void)sv_2mortal(sv);
2239 dSP; dMARK; dORIGMARK; dTARGET;
2240 register AV *ary = (AV*)*++MARK;
2244 av_unshift(ary, SP - MARK);
2247 sv_setsv(sv, *++MARK);
2248 (void)av_store(ary, i++, sv);
2252 PUSHi( AvFILL(ary) + 1 );
2262 if (GIMME == G_ARRAY) {
2273 register char *down;
2279 do_join(TARG, &sv_no, MARK, SP);
2281 sv_setsv(TARG, *SP);
2282 up = SvPV_force(TARG, len);
2284 down = SvPVX(TARG) + len - 1;
2290 (void)SvPOK_only(TARG);
2298 /* Explosives and implosives. */
2307 register char *pat = SvPV(left, llen);
2308 register char *s = SvPV(right, rlen);
2309 char *strend = s + rlen;
2311 register char *patend = pat + llen;
2316 /* These must not be in registers: */
2327 unsigned Quad_t auquad;
2333 register U32 culong;
2335 static char* bitcount = 0;
2337 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2339 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2340 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2342 while (isDIGIT(*patend) || *patend == '*')
2348 while (pat < patend) {
2353 else if (*pat == '*') {
2354 len = strend - strbeg; /* long enough */
2357 else if (isDIGIT(*pat)) {
2359 while (isDIGIT(*pat))
2360 len = (len * 10) + (*pat++ - '0');
2363 len = (datumtype != '@');
2368 if (len == 1 && pat[-1] != '1')
2377 if (len > strend - strbeg)
2378 DIE("@ outside of string");
2382 if (len > s - strbeg)
2383 DIE("X outside of string");
2387 if (len > strend - s)
2388 DIE("x outside of string");
2393 if (len > strend - s)
2396 goto uchar_checksum;
2397 sv = NEWSV(35, len);
2398 sv_setpvn(sv, s, len);
2400 if (datumtype == 'A') {
2401 aptr = s; /* borrow register */
2402 s = SvPVX(sv) + len - 1;
2403 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2406 SvCUR_set(sv, s - SvPVX(sv));
2407 s = aptr; /* unborrow register */
2409 XPUSHs(sv_2mortal(sv));
2413 if (pat[-1] == '*' || len > (strend - s) * 8)
2414 len = (strend - s) * 8;
2417 Newz(601, bitcount, 256, char);
2418 for (bits = 1; bits < 256; bits++) {
2419 if (bits & 1) bitcount[bits]++;
2420 if (bits & 2) bitcount[bits]++;
2421 if (bits & 4) bitcount[bits]++;
2422 if (bits & 8) bitcount[bits]++;
2423 if (bits & 16) bitcount[bits]++;
2424 if (bits & 32) bitcount[bits]++;
2425 if (bits & 64) bitcount[bits]++;
2426 if (bits & 128) bitcount[bits]++;
2430 culong += bitcount[*(unsigned char*)s++];
2435 if (datumtype == 'b') {
2437 if (bits & 1) culong++;
2443 if (bits & 128) culong++;
2450 sv = NEWSV(35, len + 1);
2453 aptr = pat; /* borrow register */
2455 if (datumtype == 'b') {
2457 for (len = 0; len < aint; len++) {
2458 if (len & 7) /*SUPPRESS 595*/
2462 *pat++ = '0' + (bits & 1);
2467 for (len = 0; len < aint; len++) {
2472 *pat++ = '0' + ((bits & 128) != 0);
2476 pat = aptr; /* unborrow register */
2477 XPUSHs(sv_2mortal(sv));
2481 if (pat[-1] == '*' || len > (strend - s) * 2)
2482 len = (strend - s) * 2;
2483 sv = NEWSV(35, len + 1);
2486 aptr = pat; /* borrow register */
2488 if (datumtype == 'h') {
2490 for (len = 0; len < aint; len++) {
2495 *pat++ = hexdigit[bits & 15];
2500 for (len = 0; len < aint; len++) {
2505 *pat++ = hexdigit[(bits >> 4) & 15];
2509 pat = aptr; /* unborrow register */
2510 XPUSHs(sv_2mortal(sv));
2513 if (len > strend - s)
2518 if (aint >= 128) /* fake up signed chars */
2527 if (aint >= 128) /* fake up signed chars */
2530 sv_setiv(sv, (I32)aint);
2531 PUSHs(sv_2mortal(sv));
2536 if (len > strend - s)
2550 sv_setiv(sv, (I32)auint);
2551 PUSHs(sv_2mortal(sv));
2556 along = (strend - s) / sizeof(I16);
2561 Copy(s, &ashort, 1, I16);
2569 Copy(s, &ashort, 1, I16);
2572 sv_setiv(sv, (I32)ashort);
2573 PUSHs(sv_2mortal(sv));
2580 along = (strend - s) / sizeof(U16);
2585 Copy(s, &aushort, 1, U16);
2588 if (datumtype == 'n')
2589 aushort = ntohs(aushort);
2592 if (datumtype == 'v')
2593 aushort = vtohs(aushort);
2601 Copy(s, &aushort, 1, U16);
2605 if (datumtype == 'n')
2606 aushort = ntohs(aushort);
2609 if (datumtype == 'v')
2610 aushort = vtohs(aushort);
2612 sv_setiv(sv, (I32)aushort);
2613 PUSHs(sv_2mortal(sv));
2618 along = (strend - s) / sizeof(int);
2623 Copy(s, &aint, 1, int);
2626 cdouble += (double)aint;
2634 Copy(s, &aint, 1, int);
2637 sv_setiv(sv, (I32)aint);
2638 PUSHs(sv_2mortal(sv));
2643 along = (strend - s) / sizeof(unsigned int);
2648 Copy(s, &auint, 1, unsigned int);
2649 s += sizeof(unsigned int);
2651 cdouble += (double)auint;
2659 Copy(s, &auint, 1, unsigned int);
2660 s += sizeof(unsigned int);
2662 sv_setiv(sv, (I32)auint);
2663 PUSHs(sv_2mortal(sv));
2668 along = (strend - s) / sizeof(I32);
2673 Copy(s, &along, 1, I32);
2676 cdouble += (double)along;
2684 Copy(s, &along, 1, I32);
2687 sv_setiv(sv, (I32)along);
2688 PUSHs(sv_2mortal(sv));
2695 along = (strend - s) / sizeof(U32);
2700 Copy(s, &aulong, 1, U32);
2703 if (datumtype == 'N')
2704 aulong = ntohl(aulong);
2707 if (datumtype == 'V')
2708 aulong = vtohl(aulong);
2711 cdouble += (double)aulong;
2719 Copy(s, &aulong, 1, U32);
2723 if (datumtype == 'N')
2724 aulong = ntohl(aulong);
2727 if (datumtype == 'V')
2728 aulong = vtohl(aulong);
2730 sv_setnv(sv, (double)aulong);
2731 PUSHs(sv_2mortal(sv));
2736 along = (strend - s) / sizeof(char*);
2741 if (sizeof(char*) > strend - s)
2744 Copy(s, &aptr, 1, char*);
2750 PUSHs(sv_2mortal(sv));
2755 if (sizeof(char*) > strend - s)
2758 Copy(s, &aptr, 1, char*);
2763 sv_setpvn(sv, aptr, len);
2764 PUSHs(sv_2mortal(sv));
2770 if (s + sizeof(Quad_t) > strend)
2773 Copy(s, &aquad, 1, Quad_t);
2774 s += sizeof(Quad_t);
2777 sv_setiv(sv, (IV)aquad);
2778 PUSHs(sv_2mortal(sv));
2784 if (s + sizeof(unsigned Quad_t) > strend)
2787 Copy(s, &auquad, 1, unsigned Quad_t);
2788 s += sizeof(unsigned Quad_t);
2791 sv_setiv(sv, (IV)auquad);
2792 PUSHs(sv_2mortal(sv));
2796 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2799 along = (strend - s) / sizeof(float);
2804 Copy(s, &afloat, 1, float);
2812 Copy(s, &afloat, 1, float);
2815 sv_setnv(sv, (double)afloat);
2816 PUSHs(sv_2mortal(sv));
2822 along = (strend - s) / sizeof(double);
2827 Copy(s, &adouble, 1, double);
2828 s += sizeof(double);
2835 Copy(s, &adouble, 1, double);
2836 s += sizeof(double);
2838 sv_setnv(sv, (double)adouble);
2839 PUSHs(sv_2mortal(sv));
2844 along = (strend - s) * 3 / 4;
2845 sv = NEWSV(42, along);
2846 while (s < strend && *s > ' ' && *s < 'a') {
2851 len = (*s++ - ' ') & 077;
2853 if (s < strend && *s >= ' ')
2854 a = (*s++ - ' ') & 077;
2857 if (s < strend && *s >= ' ')
2858 b = (*s++ - ' ') & 077;
2861 if (s < strend && *s >= ' ')
2862 c = (*s++ - ' ') & 077;
2865 if (s < strend && *s >= ' ')
2866 d = (*s++ - ' ') & 077;
2869 hunk[0] = a << 2 | b >> 4;
2870 hunk[1] = b << 4 | c >> 2;
2871 hunk[2] = c << 6 | d;
2872 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2877 else if (s[1] == '\n') /* possible checksum byte */
2880 XPUSHs(sv_2mortal(sv));
2885 if (strchr("fFdD", datumtype) ||
2886 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
2890 while (checksum >= 16) {
2894 while (checksum >= 4) {
2900 along = (1 << checksum) - 1;
2901 while (cdouble < 0.0)
2903 cdouble = modf(cdouble / adouble, &trouble) * adouble;
2904 sv_setnv(sv, cdouble);
2907 if (checksum < 32) {
2908 along = (1 << checksum) - 1;
2909 culong &= (U32)along;
2911 sv_setnv(sv, (double)culong);
2913 XPUSHs(sv_2mortal(sv));
2921 doencodes(sv, s, len)
2929 sv_catpvn(sv, hunk, 1);
2932 hunk[0] = ' ' + (077 & (*s >> 2));
2933 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
2934 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
2935 hunk[3] = ' ' + (077 & (s[2] & 077));
2936 sv_catpvn(sv, hunk, 4);
2940 for (s = SvPVX(sv); *s; s++) {
2944 sv_catpvn(sv, "\n", 1);
2949 dSP; dMARK; dORIGMARK; dTARGET;
2950 register SV *cat = TARG;
2953 register char *pat = SvPVx(*++MARK, fromlen);
2954 register char *patend = pat + fromlen;
2959 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
2960 static char *space10 = " ";
2962 /* These must not be in registers: */
2971 unsigned Quad_t auquad;
2979 sv_setpvn(cat, "", 0);
2980 while (pat < patend) {
2981 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
2984 len = strchr("@Xxu", datumtype) ? 0 : items;
2987 else if (isDIGIT(*pat)) {
2989 while (isDIGIT(*pat))
2990 len = (len * 10) + (*pat++ - '0');
2998 DIE("%% may only be used in unpack");
3009 if (SvCUR(cat) < len)
3010 DIE("X outside of string");
3017 sv_catpvn(cat, null10, 10);
3020 sv_catpvn(cat, null10, len);
3025 aptr = SvPV(fromstr, fromlen);
3029 sv_catpvn(cat, aptr, len);
3031 sv_catpvn(cat, aptr, fromlen);
3033 if (datumtype == 'A') {
3035 sv_catpvn(cat, space10, 10);
3038 sv_catpvn(cat, space10, len);
3042 sv_catpvn(cat, null10, 10);
3045 sv_catpvn(cat, null10, len);
3052 char *savepat = pat;
3057 aptr = SvPV(fromstr, fromlen);
3062 SvCUR(cat) += (len+7)/8;
3063 SvGROW(cat, SvCUR(cat) + 1);
3064 aptr = SvPVX(cat) + aint;
3069 if (datumtype == 'B') {
3070 for (len = 0; len++ < aint;) {
3071 items |= *pat++ & 1;
3075 *aptr++ = items & 0xff;
3081 for (len = 0; len++ < aint;) {
3087 *aptr++ = items & 0xff;
3093 if (datumtype == 'B')
3094 items <<= 7 - (aint & 7);
3096 items >>= 7 - (aint & 7);
3097 *aptr++ = items & 0xff;
3099 pat = SvPVX(cat) + SvCUR(cat);
3110 char *savepat = pat;
3115 aptr = SvPV(fromstr, fromlen);
3120 SvCUR(cat) += (len+1)/2;
3121 SvGROW(cat, SvCUR(cat) + 1);
3122 aptr = SvPVX(cat) + aint;
3127 if (datumtype == 'H') {
3128 for (len = 0; len++ < aint;) {
3130 items |= ((*pat++ & 15) + 9) & 15;
3132 items |= *pat++ & 15;
3136 *aptr++ = items & 0xff;
3142 for (len = 0; len++ < aint;) {
3144 items |= (((*pat++ & 15) + 9) & 15) << 4;
3146 items |= (*pat++ & 15) << 4;
3150 *aptr++ = items & 0xff;
3156 *aptr++ = items & 0xff;
3157 pat = SvPVX(cat) + SvCUR(cat);
3169 aint = SvIV(fromstr);
3171 sv_catpvn(cat, &achar, sizeof(char));
3174 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3179 afloat = (float)SvNV(fromstr);
3180 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3187 adouble = (double)SvNV(fromstr);
3188 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3194 ashort = (I16)SvIV(fromstr);
3196 ashort = htons(ashort);
3198 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3204 ashort = (I16)SvIV(fromstr);
3206 ashort = htovs(ashort);
3208 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3215 ashort = (I16)SvIV(fromstr);
3216 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3222 auint = U_I(SvNV(fromstr));
3223 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3229 aint = SvIV(fromstr);
3230 sv_catpvn(cat, (char*)&aint, sizeof(int));
3236 aulong = U_L(SvNV(fromstr));
3238 aulong = htonl(aulong);
3240 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3246 aulong = U_L(SvNV(fromstr));
3248 aulong = htovl(aulong);
3250 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3256 aulong = U_L(SvNV(fromstr));
3257 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3263 along = SvIV(fromstr);
3264 sv_catpvn(cat, (char*)&along, sizeof(I32));
3271 auquad = (unsigned Quad_t)SvIV(fromstr);
3272 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3278 aquad = (Quad_t)SvIV(fromstr);
3279 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3282 #endif /* HAS_QUAD */
3284 len = 1; /* assume SV is correct length */
3289 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3290 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3295 aptr = SvPV(fromstr, fromlen);
3296 SvGROW(cat, fromlen * 4 / 3);
3301 while (fromlen > 0) {
3308 doencodes(cat, aptr, todo);
3326 register I32 limit = POPi; /* note, negative is forever */
3329 register char *s = SvPV(sv, len);
3330 char *strend = s + len;
3331 register PMOP *pm = (PMOP*)POPs;
3335 I32 maxiters = (strend - s) + 10;
3338 I32 origlimit = limit;
3341 AV *oldstack = stack;
3342 register REGEXP *rx = pm->op_pmregexp;
3344 I32 oldsave = savestack_ix;
3347 DIE("panic: do_split");
3348 if (pm->op_pmreplroot)
3349 ary = GvAVn((GV*)pm->op_pmreplroot);
3350 else if (gimme != G_ARRAY)
3354 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3358 for (i = AvFILL(ary); i >= 0; i--)
3359 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3363 /* temporarily switch stacks */
3364 SWITCHSTACK(stack, ary);
3366 base = SP - stack_base;
3368 if (pm->op_pmflags & PMf_SKIPWHITE) {
3372 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3374 multiline = pm->op_pmflags & PMf_MULTILINE;
3378 limit = maxiters + 2;
3379 if (pm->op_pmflags & PMf_WHITE) {
3382 for (m = s; m < strend && !isSPACE(*m); m++) ;
3385 dstr = NEWSV(30, m-s);
3386 sv_setpvn(dstr, s, m-s);
3391 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3394 else if (strEQ("^", rx->precomp)) {
3397 for (m = s; m < strend && *m != '\n'; m++) ;
3401 dstr = NEWSV(30, m-s);
3402 sv_setpvn(dstr, s, m-s);
3409 else if (pm->op_pmshort) {
3410 i = SvCUR(pm->op_pmshort);
3412 I32 fold = (pm->op_pmflags & PMf_FOLD);
3413 i = *SvPVX(pm->op_pmshort);
3414 if (fold && isUPPER(i))
3419 m < strend && *m != i &&
3420 (!isUPPER(*m) || toLOWER(*m) != i);
3421 m++) /*SUPPRESS 530*/
3424 else /*SUPPRESS 530*/
3425 for (m = s; m < strend && *m != i; m++) ;
3428 dstr = NEWSV(30, m-s);
3429 sv_setpvn(dstr, s, m-s);
3438 while (s < strend && --limit &&
3439 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3443 dstr = NEWSV(31, m-s);
3444 sv_setpvn(dstr, s, m-s);
3453 maxiters += (strend - s) * rx->nparens;
3454 while (s < strend && --limit &&
3455 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3457 && rx->subbase != orig) {
3462 strend = s + (strend - m);
3465 dstr = NEWSV(32, m-s);
3466 sv_setpvn(dstr, s, m-s);
3471 for (i = 1; i <= rx->nparens; i++) {
3475 dstr = NEWSV(33, m-s);
3476 sv_setpvn(dstr, s, m-s);
3479 dstr = NEWSV(33, 0);
3488 LEAVE_SCOPE(oldsave);
3489 iters = (SP - stack_base) - base;
3490 if (iters > maxiters)
3493 /* keep field after final delim? */
3494 if (s < strend || (iters && origlimit)) {
3495 dstr = NEWSV(34, strend-s);
3496 sv_setpvn(dstr, s, strend-s);
3502 else if (!origlimit) {
3503 while (iters > 0 && SvCUR(TOPs) == 0)
3507 SWITCHSTACK(ary, oldstack);
3508 if (gimme == G_ARRAY) {
3510 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3516 if (gimme == G_ARRAY)
3519 if (iters || !pm->op_pmreplroot) {