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_PVIO) {
102 GV *gv = (GV*) sv_newmortal();
103 gv_init(gv, 0, "", 0, 0);
104 GvIOp(gv) = (IO *)sv;
107 } else if (SvTYPE(sv) != SVt_PVGV)
108 DIE("Not a GLOB reference");
111 if (SvTYPE(sv) != SVt_PVGV) {
114 if (SvGMAGICAL(sv)) {
120 if (op->op_flags & OPf_REF ||
121 op->op_private & HINT_STRICT_REFS)
122 DIE(no_usym, "a symbol");
126 if (op->op_private & HINT_STRICT_REFS)
127 DIE(no_symref, sym, "a symbol");
128 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
131 if (op->op_private & OPpLVAL_INTRO) {
135 SSPUSHPTR(SvREFCNT_inc(sv));
139 if (op->op_flags & OPf_SPECIAL) {
140 GvGP(sv)->gp_refcnt++; /* will soon be assigned */
148 GvSV(sv) = NEWSV(72,0);
149 GvLINE(sv) = curcop->cop_line;
164 switch (SvTYPE(sv)) {
168 DIE("Not a SCALAR reference");
175 if (SvTYPE(gv) != SVt_PVGV) {
176 if (SvGMAGICAL(sv)) {
182 if (op->op_flags & OPf_REF ||
183 op->op_private & HINT_STRICT_REFS)
184 DIE(no_usym, "a SCALAR");
188 if (op->op_private & HINT_STRICT_REFS)
189 DIE(no_symref, sym, "a SCALAR");
190 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
194 if (op->op_flags & OPf_MOD) {
195 if (op->op_private & OPpLVAL_INTRO)
196 sv = save_scalar((GV*)TOPs);
197 else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV))
208 SV *sv = AvARYLEN(av);
210 AvARYLEN(av) = sv = NEWSV(0,0);
211 sv_upgrade(sv, SVt_IV);
212 sv_magic(sv, (SV*)av, '#', Nullch, 0);
220 dSP; dTARGET; dPOPss;
222 if (op->op_flags & OPf_MOD) {
225 PUSHs(TARG); /* no SvSETMAGIC */
231 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
232 mg = mg_find(sv, 'g');
233 if (mg && mg->mg_len >= 0) {
234 PUSHi(mg->mg_len + curcop->cop_arybase);
248 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
249 /* (But not in defined().) */
250 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
267 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
268 if (cv && SvPOK(cv)) {
270 ret = sv_2mortal(newSVpv(p ? p : "", SvLEN(cv)));
279 CV* cv = (CV*)cSVOP->op_sv;
283 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
294 sv_upgrade(rv, SVt_RV);
299 (void)SvREFCNT_inc(sv);
312 if (GIMME != G_ARRAY) {
319 sv_upgrade(rv, SVt_RV);
324 (void)SvREFCNT_inc(sv);
341 if (sv && SvGMAGICAL(sv))
344 if (!sv || !SvROK(sv))
348 pv = sv_reftype(sv,TRUE);
349 PUSHp(pv, strlen(pv));
359 stash = curcop->cop_stash;
361 stash = gv_stashsv(POPs, TRUE);
363 (void)sv_bless(TOPs, stash);
367 /* Pattern matching */
372 register unsigned char *s;
375 register I32 *sfirst;
380 s = (unsigned char*)(SvPV(sv, len));
382 if (sv == lastscream)
386 SvSCREAM_off(lastscream);
387 SvREFCNT_dec(lastscream);
389 lastscream = SvREFCNT_inc(sv);
395 if (pos > maxscream) {
397 maxscream = pos + 80;
398 New(301, screamfirst, 256, I32);
399 New(302, screamnext, maxscream, I32);
402 maxscream = pos + pos / 4;
403 Renew(screamnext, maxscream, I32);
407 sfirst = screamfirst;
410 if (!sfirst || !snext)
411 DIE("do_study: out of memory");
413 for (ch = 256; ch; --ch)
420 snext[pos] = sfirst[ch] - pos;
425 /* If there were any case insensitive searches, we must assume they
426 * all are. This speeds up insensitive searches much more than
427 * it slows down sensitive ones.
430 sfirst[fold[ch]] = pos;
434 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
437 XPUSHs(sv_2mortal(newSViv((I32)retval)));
446 if (op->op_flags & OPf_STACKED)
452 TARG = sv_newmortal();
453 PUSHi(do_trans(sv, op));
457 /* Lvalue operators. */
479 SETi(do_chomp(TOPs));
486 register I32 count = 0;
489 count += do_chomp(POPs);
500 if (!sv || !SvANY(sv))
502 switch (SvTYPE(sv)) {
504 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
508 if (HvARRAY(sv) || SvRMAGICAL(sv))
512 if (CvROOT(sv) || CvXSUB(sv))
536 if (SvTHINKFIRST(sv)) {
543 switch (SvTYPE(sv)) {
558 sv_setsv(sv, &sv_undef);
562 if (SvPOK(sv) && SvLEN(sv)) {
565 SvPV_set(sv, Nullch);
579 if (SvIVX(TOPs) == IV_MIN) {
580 sv_setnv(TOPs, (double)SvIVX(TOPs) - 1.0);
584 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
596 sv_setsv(TARG, TOPs);
598 if (SvIVX(TOPs) == IV_MAX) {
599 sv_setnv(TOPs, (double)SvIVX(TOPs) + 1.0);
603 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
618 sv_setsv(TARG, TOPs);
620 if (SvIVX(TOPs) == IV_MIN) {
621 sv_setnv(TOPs, (double)SvIVX(TOPs) - 1.0);
625 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
635 /* Ordinary operators. */
639 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
642 SETn( pow( left, right) );
649 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
652 SETn( left * right );
659 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
663 DIE("Illegal division by zero");
665 /* insure that 20./5. == 4. */
670 if ((double)I_32(x) == x &&
671 (double)I_32(value) == value &&
672 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
679 value = POPn / value;
688 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
690 register unsigned long tmpulong;
691 register long tmplong;
694 tmpulong = (unsigned long) POPn;
696 DIE("Illegal modulus zero");
699 value = (I32)(((unsigned long)value) % tmpulong);
701 tmplong = (long)value;
702 value = (I32)(tmpulong - ((-tmplong - 1) % tmpulong)) - 1;
711 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
713 register I32 count = POPi;
714 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
716 I32 items = SP - MARK;
728 repeatcpy((char*)(MARK + items), (char*)MARK,
729 items * sizeof(SV*), count - 1);
735 else { /* Note: mark already snarfed by pp_list */
740 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
741 if (SvREADONLY(tmpstr) && curcop != &compiling)
742 DIE("Can't x= to readonly value");
746 SvSetSV(TARG, tmpstr);
747 SvPV_force(TARG, len);
749 SvGROW(TARG, (count * len) + 1);
751 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
752 SvCUR(TARG) *= count;
754 (void)SvPOK_only(TARG);
757 sv_setsv(TARG, &sv_no);
766 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
769 SETn( left - right );
776 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
779 SETi( left << right );
786 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
789 SETi( left >> right );
796 dSP; tryAMAGICbinSET(lt,0);
799 SETs((TOPn < value) ? &sv_yes : &sv_no);
806 dSP; tryAMAGICbinSET(gt,0);
809 SETs((TOPn > value) ? &sv_yes : &sv_no);
816 dSP; tryAMAGICbinSET(le,0);
819 SETs((TOPn <= value) ? &sv_yes : &sv_no);
826 dSP; tryAMAGICbinSET(ge,0);
829 SETs((TOPn >= value) ? &sv_yes : &sv_no);
836 dSP; tryAMAGICbinSET(ne,0);
839 SETs((TOPn != value) ? &sv_yes : &sv_no);
846 dSP; dTARGET; tryAMAGICbin(ncmp,0);
853 else if (left < right)
864 dSP; tryAMAGICbinSET(slt,0);
867 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
874 dSP; tryAMAGICbinSET(sgt,0);
877 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
884 dSP; tryAMAGICbinSET(sle,0);
887 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
894 dSP; tryAMAGICbinSET(sge,0);
897 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
904 dSP; tryAMAGICbinSET(sne,0);
907 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
914 dSP; dTARGET; tryAMAGICbin(scmp,0);
917 SETi( sv_cmp(left, right) );
923 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
926 if (SvNIOKp(left) || SvNIOKp(right)) {
927 unsigned long value = U_L(SvNV(left));
928 value = value & U_L(SvNV(right));
932 do_vop(op->op_type, TARG, left, right);
941 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
944 if (SvNIOKp(left) || SvNIOKp(right)) {
945 unsigned long value = U_L(SvNV(left));
946 value = value ^ U_L(SvNV(right));
950 do_vop(op->op_type, TARG, left, right);
959 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
962 if (SvNIOKp(left) || SvNIOKp(right)) {
963 unsigned long value = U_L(SvNV(left));
964 value = value | U_L(SvNV(right));
968 do_vop(op->op_type, TARG, left, right);
977 dSP; dTARGET; tryAMAGICun(neg);
984 else if (SvPOKp(sv)) {
986 char *s = SvPV(sv, len);
987 if (isALPHA(*s) || *s == '_') {
988 sv_setpvn(TARG, "-", 1);
991 else if (*s == '+' || *s == '-') {
993 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
996 sv_setnv(TARG, -SvNV(sv));
1008 dSP; tryAMAGICunSET(not);
1009 #endif /* OVERLOAD */
1010 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1016 dSP; dTARGET; tryAMAGICun(compl);
1024 SETn( (double) ~U_L(SvNV(sv)) );
1029 register char *tmps;
1030 register long *tmpl;
1034 tmps = SvPV_force(TARG, len);
1037 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1040 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1044 for ( ; anum > 0; anum--, tmps++)
1053 /* integer versions of some of the above */
1057 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1060 SETi( left * right );
1067 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1071 DIE("Illegal division by zero");
1072 value = POPi / value;
1080 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1083 SETi( left % right );
1090 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1093 SETi( left + right );
1100 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1103 SETi( left - right );
1110 dSP; tryAMAGICbinSET(lt,0);
1113 SETs((left < right) ? &sv_yes : &sv_no);
1120 dSP; tryAMAGICbinSET(gt,0);
1123 SETs((left > right) ? &sv_yes : &sv_no);
1130 dSP; tryAMAGICbinSET(le,0);
1133 SETs((left <= right) ? &sv_yes : &sv_no);
1140 dSP; tryAMAGICbinSET(ge,0);
1143 SETs((left >= right) ? &sv_yes : &sv_no);
1150 dSP; tryAMAGICbinSET(eq,0);
1153 SETs((left == right) ? &sv_yes : &sv_no);
1160 dSP; tryAMAGICbinSET(ne,0);
1163 SETs((left != right) ? &sv_yes : &sv_no);
1170 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1177 else if (left < right)
1188 dSP; dTARGET; tryAMAGICun(neg);
1193 /* High falutin' math. */
1197 dSP; dTARGET; tryAMAGICbin(atan2,0);
1200 SETn(atan2(left, right));
1207 dSP; dTARGET; tryAMAGICun(sin);
1219 dSP; dTARGET; tryAMAGICun(cos);
1240 value = rand() * value / 2147483648.0;
1243 value = rand() * value / 65536.0;
1246 value = rand() * value / 32768.0;
1248 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1263 # include <starlet.h>
1264 unsigned int when[2];
1265 _ckvmssts(sys$gettim(when));
1266 anum = when[0] ^ when[1];
1268 # if defined(I_SYS_TIME) && !defined(PLAN9)
1269 struct timeval when;
1270 gettimeofday(&when,(struct timezone *) 0);
1271 anum = when.tv_sec ^ when.tv_usec;
1278 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1279 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1280 /* What is a good hashing algorithm here? */
1281 anum ^= ( ( 269 * (U32)getpid())
1282 ^ (26107 * (U32)&when)
1283 ^ (73819 * (U32)stack_sp));
1295 dSP; dTARGET; tryAMAGICun(exp);
1307 dSP; dTARGET; tryAMAGICun(log);
1312 DIE("Can't take log of %g", value);
1321 dSP; dTARGET; tryAMAGICun(sqrt);
1326 DIE("Can't take sqrt of %g", value);
1327 value = sqrt(value);
1339 (void)modf(value, &value);
1341 (void)modf(-value, &value);
1350 dSP; dTARGET; tryAMAGICun(abs);
1367 unsigned long value;
1371 value = scan_hex(tmps, 99, &argtype);
1382 unsigned long value;
1387 while (*tmps && isSPACE(*tmps))
1392 value = scan_hex(++tmps, 99, &argtype);
1394 value = scan_oct(tmps, 99, &argtype);
1407 SETi( sv_len(TOPs) );
1419 I32 lvalue = op->op_flags & OPf_MOD;
1421 I32 arybase = curcop->cop_arybase;
1425 pos = POPi - arybase;
1427 tmps = SvPV(sv, curlen);
1429 pos += curlen + arybase;
1430 if (pos < 0 || pos > curlen) {
1431 if (dowarn || lvalue)
1432 warn("substr outside of string");
1439 len += curlen - pos;
1444 rem = curlen - pos; /* rem=how many bytes left*/
1447 sv_setpvn(TARG, tmps, rem);
1448 if (lvalue) { /* it's an lvalue! */
1449 if (!SvGMAGICAL(sv)) {
1453 warn("Attempt to use reference as lvalue in substr");
1455 if (SvOK(sv)) /* is it defined ? */
1456 (void)SvPOK_only(sv);
1458 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1460 if (SvTYPE(TARG) < SVt_PVLV) {
1461 sv_upgrade(TARG, SVt_PVLV);
1462 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1467 LvTARGOFF(TARG) = pos;
1468 LvTARGLEN(TARG) = rem;
1471 PUSHs(TARG); /* avoid SvSETMAGIC here */
1478 register I32 size = POPi;
1479 register I32 offset = POPi;
1480 register SV *src = POPs;
1481 I32 lvalue = op->op_flags & OPf_MOD;
1483 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1484 unsigned long retnum;
1487 offset *= size; /* turn into bit offset */
1488 len = (offset + size + 7) / 8;
1489 if (offset < 0 || size < 1)
1492 if (lvalue) { /* it's an lvalue! */
1493 if (SvTYPE(TARG) < SVt_PVLV) {
1494 sv_upgrade(TARG, SVt_PVLV);
1495 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1500 LvTARGOFF(TARG) = offset;
1501 LvTARGLEN(TARG) = size;
1509 if (offset >= srclen)
1512 retnum = (unsigned long) s[offset] << 8;
1514 else if (size == 32) {
1515 if (offset >= srclen)
1517 else if (offset + 1 >= srclen)
1518 retnum = (unsigned long) s[offset] << 24;
1519 else if (offset + 2 >= srclen)
1520 retnum = ((unsigned long) s[offset] << 24) +
1521 ((unsigned long) s[offset + 1] << 16);
1523 retnum = ((unsigned long) s[offset] << 24) +
1524 ((unsigned long) s[offset + 1] << 16) +
1525 (s[offset + 2] << 8);
1530 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1535 else if (size == 16)
1536 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1537 else if (size == 32)
1538 retnum = ((unsigned long) s[offset] << 24) +
1539 ((unsigned long) s[offset + 1] << 16) +
1540 (s[offset + 2] << 8) + s[offset+3];
1544 sv_setiv(TARG, (I32)retnum);
1559 I32 arybase = curcop->cop_arybase;
1564 offset = POPi - arybase;
1567 tmps = SvPV(big, biglen);
1570 else if (offset > biglen)
1572 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1573 (unsigned char*)tmps + biglen, little)))
1574 retval = -1 + arybase;
1576 retval = tmps2 - tmps + arybase;
1593 I32 arybase = curcop->cop_arybase;
1599 tmps2 = SvPV(little, llen);
1600 tmps = SvPV(big, blen);
1604 offset = SvIV(offstr) - arybase + llen;
1607 else if (offset > blen)
1609 if (!(tmps2 = rninstr(tmps, tmps + offset,
1610 tmps2, tmps2 + llen)))
1611 retval = -1 + arybase;
1613 retval = tmps2 - tmps + arybase;
1620 dSP; dMARK; dORIGMARK; dTARGET;
1621 do_sprintf(TARG, SP-MARK, MARK+1);
1635 value = (I32) (*tmps & 255);
1640 value = (I32) (anum & 255);
1651 (void)SvUPGRADE(TARG,SVt_PV);
1657 (void)SvPOK_only(TARG);
1664 dSP; dTARGET; dPOPTOPssrl;
1666 char *tmps = SvPV(left, na);
1668 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1670 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1674 "The crypt() function is unimplemented due to excessive paranoia.");
1686 if (!SvPADTMP(sv)) {
1692 s = SvPV_force(sv, na);
1705 if (!SvPADTMP(sv)) {
1711 s = SvPV_force(sv, na);
1724 register char *send;
1727 if (!SvPADTMP(sv)) {
1733 s = SvPV_force(sv, len);
1748 register char *send;
1751 if (!SvPADTMP(sv)) {
1757 s = SvPV_force(sv, len);
1772 register char *s = SvPV(sv,len);
1776 (void)SvUPGRADE(TARG, SVt_PV);
1777 SvGROW(TARG, (len * 2) + 1);
1785 SvCUR_set(TARG, d - SvPVX(TARG));
1786 (void)SvPOK_only(TARG);
1789 sv_setpvn(TARG, s, len);
1798 dSP; dMARK; dORIGMARK;
1800 register AV* av = (AV*)POPs;
1801 register I32 lval = op->op_flags & OPf_MOD;
1802 I32 arybase = curcop->cop_arybase;
1805 if (SvTYPE(av) == SVt_PVAV) {
1806 if (lval && op->op_private & OPpLVAL_INTRO) {
1808 for (svp = mark + 1; svp <= sp; svp++) {
1813 if (max > AvMAX(av))
1816 while (++MARK <= SP) {
1817 elem = SvIVx(*MARK);
1821 svp = av_fetch(av, elem, lval);
1823 if (!svp || *svp == &sv_undef)
1824 DIE(no_aelem, elem);
1825 if (op->op_private & OPpLVAL_INTRO)
1828 *MARK = svp ? *svp : &sv_undef;
1831 if (GIMME != G_ARRAY) {
1839 /* Associative arrays. */
1844 HV *hash = (HV*)POPs;
1848 entry = hv_iternext(hash); /* might clobber stack_sp */
1853 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1854 if (GIMME == G_ARRAY) {
1856 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1861 else if (GIMME == G_SCALAR)
1884 if (SvTYPE(hv) != SVt_PVHV) {
1885 DIE("Not a HASH reference");
1887 sv = hv_delete_ent(hv, tmpsv,
1888 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1901 if (SvTYPE(hv) != SVt_PVHV) {
1902 DIE("Not a HASH reference");
1904 if (hv_exists_ent(hv, tmpsv, 0))
1911 dSP; dMARK; dORIGMARK;
1913 register HV *hv = (HV*)POPs;
1914 register I32 lval = op->op_flags & OPf_MOD;
1916 if (SvTYPE(hv) == SVt_PVHV) {
1917 while (++MARK <= SP) {
1920 he = hv_fetch_ent(hv, keysv, lval, 0);
1922 if (!he || HeVAL(he) == &sv_undef)
1923 DIE(no_helem, SvPV(keysv, na));
1924 if (op->op_private & OPpLVAL_INTRO)
1925 save_svref(&HeVAL(he));
1927 *MARK = he ? HeVAL(he) : &sv_undef;
1930 if (GIMME != G_ARRAY) {
1938 /* List operators. */
1943 if (GIMME != G_ARRAY) {
1945 *MARK = *SP; /* unwanted list, return last item */
1956 SV **lastrelem = stack_sp;
1957 SV **lastlelem = stack_base + POPMARK;
1958 SV **firstlelem = stack_base + POPMARK + 1;
1959 register SV **firstrelem = lastlelem + 1;
1960 I32 arybase = curcop->cop_arybase;
1961 I32 lval = op->op_flags & OPf_MOD;
1962 I32 is_something_there = lval;
1964 register I32 max = lastrelem - lastlelem;
1965 register SV **lelem;
1968 if (GIMME != G_ARRAY) {
1969 ix = SvIVx(*lastlelem);
1974 if (ix < 0 || ix >= max)
1975 *firstlelem = &sv_undef;
1977 *firstlelem = firstrelem[ix];
1983 SP = firstlelem - 1;
1987 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
1993 else if (!(*lelem = firstrelem[ix]))
1998 if (ix >= max || !(*lelem = firstrelem[ix]))
2001 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2002 is_something_there = TRUE;
2004 if (is_something_there)
2007 SP = firstlelem - 1;
2014 I32 items = SP - MARK;
2016 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2022 dSP; dMARK; dORIGMARK;
2024 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2028 SV *val = NEWSV(46, 0);
2030 sv_setsv(val, *++MARK);
2032 warn("Odd number of elements in hash list");
2033 (void)hv_store_ent(hv,key,val,0);
2042 dSP; dMARK; dORIGMARK;
2043 register AV *ary = (AV*)*++MARK;
2047 register I32 offset;
2048 register I32 length;
2057 offset = SvIVx(*MARK);
2059 offset += AvFILL(ary) + 1;
2061 offset -= curcop->cop_arybase;
2063 length = SvIVx(*MARK++);
2068 length = AvMAX(ary) + 1; /* close enough to infinity */
2072 length = AvMAX(ary) + 1;
2080 if (offset > AvFILL(ary) + 1)
2081 offset = AvFILL(ary) + 1;
2082 after = AvFILL(ary) + 1 - (offset + length);
2083 if (after < 0) { /* not that much array */
2084 length += after; /* offset+length now in array */
2090 /* At this point, MARK .. SP-1 is our new LIST */
2093 diff = newlen - length;
2095 if (diff < 0) { /* shrinking the area */
2097 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2098 Copy(MARK, tmparyval, newlen, SV*);
2101 MARK = ORIGMARK + 1;
2102 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2103 MEXTEND(MARK, length);
2104 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2106 for (i = length, dst = MARK; i; i--)
2107 sv_2mortal(*dst++); /* free them eventualy */
2112 *MARK = AvARRAY(ary)[offset+length-1];
2115 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2116 SvREFCNT_dec(*dst++); /* free them now */
2119 AvFILL(ary) += diff;
2121 /* pull up or down? */
2123 if (offset < after) { /* easier to pull up */
2124 if (offset) { /* esp. if nothing to pull */
2125 src = &AvARRAY(ary)[offset-1];
2126 dst = src - diff; /* diff is negative */
2127 for (i = offset; i > 0; i--) /* can't trust Copy */
2131 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2135 if (after) { /* anything to pull down? */
2136 src = AvARRAY(ary) + offset + length;
2137 dst = src + diff; /* diff is negative */
2138 Move(src, dst, after, SV*);
2140 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2141 /* avoid later double free */
2145 dst[--i] = &sv_undef;
2148 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2150 *dst = NEWSV(46, 0);
2151 sv_setsv(*dst++, *src++);
2153 Safefree(tmparyval);
2156 else { /* no, expanding (or same) */
2158 New(452, tmparyval, length, SV*); /* so remember deletion */
2159 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2162 if (diff > 0) { /* expanding */
2164 /* push up or down? */
2166 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2170 Move(src, dst, offset, SV*);
2172 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2174 AvFILL(ary) += diff;
2177 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2178 av_extend(ary, AvFILL(ary) + diff);
2179 AvFILL(ary) += diff;
2182 dst = AvARRAY(ary) + AvFILL(ary);
2184 for (i = after; i; i--) {
2191 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2192 *dst = NEWSV(46, 0);
2193 sv_setsv(*dst++, *src++);
2195 MARK = ORIGMARK + 1;
2196 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2198 Copy(tmparyval, MARK, length, SV*);
2200 for (i = length, dst = MARK; i; i--)
2201 sv_2mortal(*dst++); /* free them eventualy */
2203 Safefree(tmparyval);
2207 else if (length--) {
2208 *MARK = tmparyval[length];
2211 while (length-- > 0)
2212 SvREFCNT_dec(tmparyval[length]);
2214 Safefree(tmparyval);
2225 dSP; dMARK; dORIGMARK; dTARGET;
2226 register AV *ary = (AV*)*++MARK;
2227 register SV *sv = &sv_undef;
2229 for (++MARK; MARK <= SP; MARK++) {
2232 sv_setsv(sv, *MARK);
2236 PUSHi( AvFILL(ary) + 1 );
2244 SV *sv = av_pop(av);
2245 if (sv != &sv_undef && AvREAL(av))
2246 (void)sv_2mortal(sv);
2255 SV *sv = av_shift(av);
2259 if (sv != &sv_undef && AvREAL(av))
2260 (void)sv_2mortal(sv);
2267 dSP; dMARK; dORIGMARK; dTARGET;
2268 register AV *ary = (AV*)*++MARK;
2272 av_unshift(ary, SP - MARK);
2275 sv_setsv(sv, *++MARK);
2276 (void)av_store(ary, i++, sv);
2280 PUSHi( AvFILL(ary) + 1 );
2290 if (GIMME == G_ARRAY) {
2301 register char *down;
2307 do_join(TARG, &sv_no, MARK, SP);
2309 sv_setsv(TARG, *SP);
2310 up = SvPV_force(TARG, len);
2312 down = SvPVX(TARG) + len - 1;
2318 (void)SvPOK_only(TARG);
2326 /* Explosives and implosives. */
2335 register char *pat = SvPV(left, llen);
2336 register char *s = SvPV(right, rlen);
2337 char *strend = s + rlen;
2339 register char *patend = pat + llen;
2344 /* These must not be in registers: */
2355 unsigned Quad_t auquad;
2361 register U32 culong;
2363 static char* bitcount = 0;
2365 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2367 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2368 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2370 while (isDIGIT(*patend) || *patend == '*')
2376 while (pat < patend) {
2381 else if (*pat == '*') {
2382 len = strend - strbeg; /* long enough */
2385 else if (isDIGIT(*pat)) {
2387 while (isDIGIT(*pat))
2388 len = (len * 10) + (*pat++ - '0');
2391 len = (datumtype != '@');
2396 if (len == 1 && pat[-1] != '1')
2405 if (len > strend - strbeg)
2406 DIE("@ outside of string");
2410 if (len > s - strbeg)
2411 DIE("X outside of string");
2415 if (len > strend - s)
2416 DIE("x outside of string");
2421 if (len > strend - s)
2424 goto uchar_checksum;
2425 sv = NEWSV(35, len);
2426 sv_setpvn(sv, s, len);
2428 if (datumtype == 'A') {
2429 aptr = s; /* borrow register */
2430 s = SvPVX(sv) + len - 1;
2431 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2434 SvCUR_set(sv, s - SvPVX(sv));
2435 s = aptr; /* unborrow register */
2437 XPUSHs(sv_2mortal(sv));
2441 if (pat[-1] == '*' || len > (strend - s) * 8)
2442 len = (strend - s) * 8;
2445 Newz(601, bitcount, 256, char);
2446 for (bits = 1; bits < 256; bits++) {
2447 if (bits & 1) bitcount[bits]++;
2448 if (bits & 2) bitcount[bits]++;
2449 if (bits & 4) bitcount[bits]++;
2450 if (bits & 8) bitcount[bits]++;
2451 if (bits & 16) bitcount[bits]++;
2452 if (bits & 32) bitcount[bits]++;
2453 if (bits & 64) bitcount[bits]++;
2454 if (bits & 128) bitcount[bits]++;
2458 culong += bitcount[*(unsigned char*)s++];
2463 if (datumtype == 'b') {
2465 if (bits & 1) culong++;
2471 if (bits & 128) culong++;
2478 sv = NEWSV(35, len + 1);
2481 aptr = pat; /* borrow register */
2483 if (datumtype == 'b') {
2485 for (len = 0; len < aint; len++) {
2486 if (len & 7) /*SUPPRESS 595*/
2490 *pat++ = '0' + (bits & 1);
2495 for (len = 0; len < aint; len++) {
2500 *pat++ = '0' + ((bits & 128) != 0);
2504 pat = aptr; /* unborrow register */
2505 XPUSHs(sv_2mortal(sv));
2509 if (pat[-1] == '*' || len > (strend - s) * 2)
2510 len = (strend - s) * 2;
2511 sv = NEWSV(35, len + 1);
2514 aptr = pat; /* borrow register */
2516 if (datumtype == 'h') {
2518 for (len = 0; len < aint; len++) {
2523 *pat++ = hexdigit[bits & 15];
2528 for (len = 0; len < aint; len++) {
2533 *pat++ = hexdigit[(bits >> 4) & 15];
2537 pat = aptr; /* unborrow register */
2538 XPUSHs(sv_2mortal(sv));
2541 if (len > strend - s)
2546 if (aint >= 128) /* fake up signed chars */
2555 if (aint >= 128) /* fake up signed chars */
2558 sv_setiv(sv, (I32)aint);
2559 PUSHs(sv_2mortal(sv));
2564 if (len > strend - s)
2578 sv_setiv(sv, (I32)auint);
2579 PUSHs(sv_2mortal(sv));
2584 along = (strend - s) / sizeof(I16);
2589 Copy(s, &ashort, 1, I16);
2597 Copy(s, &ashort, 1, I16);
2600 sv_setiv(sv, (I32)ashort);
2601 PUSHs(sv_2mortal(sv));
2608 along = (strend - s) / sizeof(U16);
2613 Copy(s, &aushort, 1, U16);
2616 if (datumtype == 'n')
2617 aushort = ntohs(aushort);
2620 if (datumtype == 'v')
2621 aushort = vtohs(aushort);
2629 Copy(s, &aushort, 1, U16);
2633 if (datumtype == 'n')
2634 aushort = ntohs(aushort);
2637 if (datumtype == 'v')
2638 aushort = vtohs(aushort);
2640 sv_setiv(sv, (I32)aushort);
2641 PUSHs(sv_2mortal(sv));
2646 along = (strend - s) / sizeof(int);
2651 Copy(s, &aint, 1, int);
2654 cdouble += (double)aint;
2662 Copy(s, &aint, 1, int);
2665 sv_setiv(sv, (I32)aint);
2666 PUSHs(sv_2mortal(sv));
2671 along = (strend - s) / sizeof(unsigned int);
2676 Copy(s, &auint, 1, unsigned int);
2677 s += sizeof(unsigned int);
2679 cdouble += (double)auint;
2687 Copy(s, &auint, 1, unsigned int);
2688 s += sizeof(unsigned int);
2690 sv_setiv(sv, (I32)auint);
2691 PUSHs(sv_2mortal(sv));
2696 along = (strend - s) / sizeof(I32);
2701 Copy(s, &along, 1, I32);
2704 cdouble += (double)along;
2712 Copy(s, &along, 1, I32);
2715 sv_setiv(sv, (I32)along);
2716 PUSHs(sv_2mortal(sv));
2723 along = (strend - s) / sizeof(U32);
2728 Copy(s, &aulong, 1, U32);
2731 if (datumtype == 'N')
2732 aulong = ntohl(aulong);
2735 if (datumtype == 'V')
2736 aulong = vtohl(aulong);
2739 cdouble += (double)aulong;
2747 Copy(s, &aulong, 1, U32);
2751 if (datumtype == 'N')
2752 aulong = ntohl(aulong);
2755 if (datumtype == 'V')
2756 aulong = vtohl(aulong);
2758 sv_setnv(sv, (double)aulong);
2759 PUSHs(sv_2mortal(sv));
2764 along = (strend - s) / sizeof(char*);
2769 if (sizeof(char*) > strend - s)
2772 Copy(s, &aptr, 1, char*);
2778 PUSHs(sv_2mortal(sv));
2783 if (sizeof(char*) > strend - s)
2786 Copy(s, &aptr, 1, char*);
2791 sv_setpvn(sv, aptr, len);
2792 PUSHs(sv_2mortal(sv));
2798 if (s + sizeof(Quad_t) > strend)
2801 Copy(s, &aquad, 1, Quad_t);
2802 s += sizeof(Quad_t);
2805 sv_setiv(sv, (IV)aquad);
2806 PUSHs(sv_2mortal(sv));
2812 if (s + sizeof(unsigned Quad_t) > strend)
2815 Copy(s, &auquad, 1, unsigned Quad_t);
2816 s += sizeof(unsigned Quad_t);
2819 sv_setiv(sv, (IV)auquad);
2820 PUSHs(sv_2mortal(sv));
2824 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2827 along = (strend - s) / sizeof(float);
2832 Copy(s, &afloat, 1, float);
2840 Copy(s, &afloat, 1, float);
2843 sv_setnv(sv, (double)afloat);
2844 PUSHs(sv_2mortal(sv));
2850 along = (strend - s) / sizeof(double);
2855 Copy(s, &adouble, 1, double);
2856 s += sizeof(double);
2863 Copy(s, &adouble, 1, double);
2864 s += sizeof(double);
2866 sv_setnv(sv, (double)adouble);
2867 PUSHs(sv_2mortal(sv));
2872 along = (strend - s) * 3 / 4;
2873 sv = NEWSV(42, along);
2876 while (s < strend && *s > ' ' && *s < 'a') {
2881 len = (*s++ - ' ') & 077;
2883 if (s < strend && *s >= ' ')
2884 a = (*s++ - ' ') & 077;
2887 if (s < strend && *s >= ' ')
2888 b = (*s++ - ' ') & 077;
2891 if (s < strend && *s >= ' ')
2892 c = (*s++ - ' ') & 077;
2895 if (s < strend && *s >= ' ')
2896 d = (*s++ - ' ') & 077;
2899 hunk[0] = a << 2 | b >> 4;
2900 hunk[1] = b << 4 | c >> 2;
2901 hunk[2] = c << 6 | d;
2902 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2907 else if (s[1] == '\n') /* possible checksum byte */
2910 XPUSHs(sv_2mortal(sv));
2915 if (strchr("fFdD", datumtype) ||
2916 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
2920 while (checksum >= 16) {
2924 while (checksum >= 4) {
2930 along = (1 << checksum) - 1;
2931 while (cdouble < 0.0)
2933 cdouble = modf(cdouble / adouble, &trouble) * adouble;
2934 sv_setnv(sv, cdouble);
2937 if (checksum < 32) {
2938 along = (1 << checksum) - 1;
2939 culong &= (U32)along;
2941 sv_setnv(sv, (double)culong);
2943 XPUSHs(sv_2mortal(sv));
2951 doencodes(sv, s, len)
2959 sv_catpvn(sv, hunk, 1);
2962 hunk[0] = ' ' + (077 & (*s >> 2));
2963 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
2964 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
2965 hunk[3] = ' ' + (077 & (s[2] & 077));
2966 sv_catpvn(sv, hunk, 4);
2970 for (s = SvPVX(sv); *s; s++) {
2974 sv_catpvn(sv, "\n", 1);
2979 dSP; dMARK; dORIGMARK; dTARGET;
2980 register SV *cat = TARG;
2983 register char *pat = SvPVx(*++MARK, fromlen);
2984 register char *patend = pat + fromlen;
2989 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
2990 static char *space10 = " ";
2992 /* These must not be in registers: */
3001 unsigned Quad_t auquad;
3009 sv_setpvn(cat, "", 0);
3010 while (pat < patend) {
3011 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3014 len = strchr("@Xxu", datumtype) ? 0 : items;
3017 else if (isDIGIT(*pat)) {
3019 while (isDIGIT(*pat))
3020 len = (len * 10) + (*pat++ - '0');
3028 DIE("%% may only be used in unpack");
3039 if (SvCUR(cat) < len)
3040 DIE("X outside of string");
3047 sv_catpvn(cat, null10, 10);
3050 sv_catpvn(cat, null10, len);
3055 aptr = SvPV(fromstr, fromlen);
3059 sv_catpvn(cat, aptr, len);
3061 sv_catpvn(cat, aptr, fromlen);
3063 if (datumtype == 'A') {
3065 sv_catpvn(cat, space10, 10);
3068 sv_catpvn(cat, space10, len);
3072 sv_catpvn(cat, null10, 10);
3075 sv_catpvn(cat, null10, len);
3082 char *savepat = pat;
3087 aptr = SvPV(fromstr, fromlen);
3092 SvCUR(cat) += (len+7)/8;
3093 SvGROW(cat, SvCUR(cat) + 1);
3094 aptr = SvPVX(cat) + aint;
3099 if (datumtype == 'B') {
3100 for (len = 0; len++ < aint;) {
3101 items |= *pat++ & 1;
3105 *aptr++ = items & 0xff;
3111 for (len = 0; len++ < aint;) {
3117 *aptr++ = items & 0xff;
3123 if (datumtype == 'B')
3124 items <<= 7 - (aint & 7);
3126 items >>= 7 - (aint & 7);
3127 *aptr++ = items & 0xff;
3129 pat = SvPVX(cat) + SvCUR(cat);
3140 char *savepat = pat;
3145 aptr = SvPV(fromstr, fromlen);
3150 SvCUR(cat) += (len+1)/2;
3151 SvGROW(cat, SvCUR(cat) + 1);
3152 aptr = SvPVX(cat) + aint;
3157 if (datumtype == 'H') {
3158 for (len = 0; len++ < aint;) {
3160 items |= ((*pat++ & 15) + 9) & 15;
3162 items |= *pat++ & 15;
3166 *aptr++ = items & 0xff;
3172 for (len = 0; len++ < aint;) {
3174 items |= (((*pat++ & 15) + 9) & 15) << 4;
3176 items |= (*pat++ & 15) << 4;
3180 *aptr++ = items & 0xff;
3186 *aptr++ = items & 0xff;
3187 pat = SvPVX(cat) + SvCUR(cat);
3199 aint = SvIV(fromstr);
3201 sv_catpvn(cat, &achar, sizeof(char));
3204 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3209 afloat = (float)SvNV(fromstr);
3210 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3217 adouble = (double)SvNV(fromstr);
3218 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3224 ashort = (I16)SvIV(fromstr);
3226 ashort = htons(ashort);
3228 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3234 ashort = (I16)SvIV(fromstr);
3236 ashort = htovs(ashort);
3238 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3245 ashort = (I16)SvIV(fromstr);
3246 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3252 auint = U_I(SvNV(fromstr));
3253 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3259 aint = SvIV(fromstr);
3260 sv_catpvn(cat, (char*)&aint, sizeof(int));
3266 aulong = U_L(SvNV(fromstr));
3268 aulong = htonl(aulong);
3270 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3276 aulong = U_L(SvNV(fromstr));
3278 aulong = htovl(aulong);
3280 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3286 aulong = U_L(SvNV(fromstr));
3287 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3293 along = SvIV(fromstr);
3294 sv_catpvn(cat, (char*)&along, sizeof(I32));
3301 auquad = (unsigned Quad_t)SvIV(fromstr);
3302 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3308 aquad = (Quad_t)SvIV(fromstr);
3309 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3312 #endif /* HAS_QUAD */
3314 len = 1; /* assume SV is correct length */
3319 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3320 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3325 aptr = SvPV(fromstr, fromlen);
3326 SvGROW(cat, fromlen * 4 / 3);
3331 while (fromlen > 0) {
3338 doencodes(cat, aptr, todo);
3356 register I32 limit = POPi; /* note, negative is forever */
3359 register char *s = SvPV(sv, len);
3360 char *strend = s + len;
3361 register PMOP *pm = (PMOP*)POPs;
3365 I32 maxiters = (strend - s) + 10;
3368 I32 origlimit = limit;
3371 AV *oldstack = curstack;
3372 register REGEXP *rx = pm->op_pmregexp;
3374 I32 oldsave = savestack_ix;
3377 DIE("panic: do_split");
3378 if (pm->op_pmreplroot)
3379 ary = GvAVn((GV*)pm->op_pmreplroot);
3380 else if (gimme != G_ARRAY)
3384 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3388 for (i = AvFILL(ary); i >= 0; i--)
3389 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3393 /* temporarily switch stacks */
3394 SWITCHSTACK(curstack, ary);
3396 base = SP - stack_base;
3398 if (pm->op_pmflags & PMf_SKIPWHITE) {
3402 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3404 multiline = pm->op_pmflags & PMf_MULTILINE;
3408 limit = maxiters + 2;
3409 if (pm->op_pmflags & PMf_WHITE) {
3412 for (m = s; m < strend && !isSPACE(*m); m++) ;
3415 dstr = NEWSV(30, m-s);
3416 sv_setpvn(dstr, s, m-s);
3421 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3424 else if (strEQ("^", rx->precomp)) {
3427 for (m = s; m < strend && *m != '\n'; m++) ;
3431 dstr = NEWSV(30, m-s);
3432 sv_setpvn(dstr, s, m-s);
3439 else if (pm->op_pmshort) {
3440 i = SvCUR(pm->op_pmshort);
3442 I32 fold = (pm->op_pmflags & PMf_FOLD);
3443 i = *SvPVX(pm->op_pmshort);
3444 if (fold && isUPPER(i))
3449 m < strend && *m != i &&
3450 (!isUPPER(*m) || toLOWER(*m) != i);
3451 m++) /*SUPPRESS 530*/
3454 else /*SUPPRESS 530*/
3455 for (m = s; m < strend && *m != i; m++) ;
3458 dstr = NEWSV(30, m-s);
3459 sv_setpvn(dstr, s, m-s);
3468 while (s < strend && --limit &&
3469 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3473 dstr = NEWSV(31, m-s);
3474 sv_setpvn(dstr, s, m-s);
3483 maxiters += (strend - s) * rx->nparens;
3484 while (s < strend && --limit &&
3485 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3487 && rx->subbase != orig) {
3492 strend = s + (strend - m);
3495 dstr = NEWSV(32, m-s);
3496 sv_setpvn(dstr, s, m-s);
3501 for (i = 1; i <= rx->nparens; i++) {
3505 dstr = NEWSV(33, m-s);
3506 sv_setpvn(dstr, s, m-s);
3509 dstr = NEWSV(33, 0);
3518 LEAVE_SCOPE(oldsave);
3519 iters = (SP - stack_base) - base;
3520 if (iters > maxiters)
3523 /* keep field after final delim? */
3524 if (s < strend || (iters && origlimit)) {
3525 dstr = NEWSV(34, strend-s);
3526 sv_setpvn(dstr, s, strend-s);
3532 else if (!origlimit) {
3533 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3537 SWITCHSTACK(ary, oldstack);
3538 if (gimme == G_ARRAY) {
3540 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3546 if (gimme == G_ARRAY)
3549 if (iters || !pm->op_pmreplroot) {