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 = (GV*)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);
335 if (sv && SvGMAGICAL(sv))
338 if (!sv || !SvROK(sv))
342 pv = sv_reftype(sv,TRUE);
343 PUSHp(pv, strlen(pv));
353 stash = curcop->cop_stash;
355 stash = gv_stashsv(POPs, TRUE);
357 (void)sv_bless(TOPs, stash);
361 /* Pattern matching */
366 register unsigned char *s;
369 register I32 *sfirst;
374 s = (unsigned char*)(SvPV(sv, len));
376 if (sv == lastscream)
380 SvSCREAM_off(lastscream);
381 SvREFCNT_dec(lastscream);
383 lastscream = SvREFCNT_inc(sv);
389 if (pos > maxscream) {
391 maxscream = pos + 80;
392 New(301, screamfirst, 256, I32);
393 New(302, screamnext, maxscream, I32);
396 maxscream = pos + pos / 4;
397 Renew(screamnext, maxscream, I32);
401 sfirst = screamfirst;
404 if (!sfirst || !snext)
405 DIE("do_study: out of memory");
407 for (ch = 256; ch; --ch)
414 snext[pos] = sfirst[ch] - pos;
419 /* If there were any case insensitive searches, we must assume they
420 * all are. This speeds up insensitive searches much more than
421 * it slows down sensitive ones.
424 sfirst[fold[ch]] = pos;
428 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
431 XPUSHs(sv_2mortal(newSViv((I32)retval)));
440 if (op->op_flags & OPf_STACKED)
446 TARG = sv_newmortal();
447 PUSHi(do_trans(sv, op));
451 /* Lvalue operators. */
473 SETi(do_chomp(TOPs));
480 register I32 count = 0;
483 count += do_chomp(POPs);
494 if (!sv || !SvANY(sv))
496 switch (SvTYPE(sv)) {
498 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
502 if (HvARRAY(sv) || SvRMAGICAL(sv))
506 if (CvROOT(sv) || CvXSUB(sv))
530 if (SvTHINKFIRST(sv)) {
537 switch (SvTYPE(sv)) {
552 sv_setsv(sv, &sv_undef);
556 if (SvPOK(sv) && SvLEN(sv)) {
559 SvPV_set(sv, Nullch);
573 if (SvIVX(TOPs) == PERL_LONG_MIN) {
574 sv_setnv(TOPs, (double)SvIVX(TOPs) - 1.0);
578 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
590 sv_setsv(TARG, TOPs);
592 if (SvIVX(TOPs) == PERL_LONG_MAX) {
593 sv_setnv(TOPs, (double)SvIVX(TOPs) + 1.0);
597 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
612 sv_setsv(TARG, TOPs);
614 if (SvIVX(TOPs) == PERL_LONG_MIN) {
615 sv_setnv(TOPs, (double)SvIVX(TOPs) - 1.0);
619 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
629 /* Ordinary operators. */
633 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
636 SETn( pow( left, right) );
643 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
646 SETn( left * right );
653 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
657 DIE("Illegal division by zero");
659 /* insure that 20./5. == 4. */
664 if ((double)I_32(x) == x &&
665 (double)I_32(value) == value &&
666 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
673 value = POPn / value;
682 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
684 register unsigned long tmpulong;
685 register long tmplong;
688 tmpulong = (unsigned long) POPn;
690 DIE("Illegal modulus zero");
693 value = (I32)(((unsigned long)value) % tmpulong);
695 tmplong = (long)value;
696 value = (I32)(tmpulong - ((-tmplong - 1) % tmpulong)) - 1;
705 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
707 register I32 count = POPi;
708 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
710 I32 items = SP - MARK;
722 repeatcpy((char*)(MARK + items), (char*)MARK,
723 items * sizeof(SV*), count - 1);
729 else { /* Note: mark already snarfed by pp_list */
734 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
735 if (SvREADONLY(tmpstr) && curcop != &compiling)
736 DIE("Can't x= to readonly value");
740 SvSetSV(TARG, tmpstr);
741 SvPV_force(TARG, len);
743 SvGROW(TARG, (count * len) + 1);
745 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
746 SvCUR(TARG) *= count;
748 (void)SvPOK_only(TARG);
751 sv_setsv(TARG, &sv_no);
760 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
763 SETn( left - right );
770 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
773 SETi( left << right );
780 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
783 SETi( left >> right );
790 dSP; tryAMAGICbinSET(lt,0);
793 SETs((TOPn < value) ? &sv_yes : &sv_no);
800 dSP; tryAMAGICbinSET(gt,0);
803 SETs((TOPn > value) ? &sv_yes : &sv_no);
810 dSP; tryAMAGICbinSET(le,0);
813 SETs((TOPn <= value) ? &sv_yes : &sv_no);
820 dSP; tryAMAGICbinSET(ge,0);
823 SETs((TOPn >= value) ? &sv_yes : &sv_no);
830 dSP; tryAMAGICbinSET(ne,0);
833 SETs((TOPn != value) ? &sv_yes : &sv_no);
840 dSP; dTARGET; tryAMAGICbin(ncmp,0);
847 else if (left < right)
858 dSP; tryAMAGICbinSET(slt,0);
861 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
868 dSP; tryAMAGICbinSET(sgt,0);
871 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
878 dSP; tryAMAGICbinSET(sle,0);
881 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
888 dSP; tryAMAGICbinSET(sge,0);
891 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
898 dSP; tryAMAGICbinSET(sne,0);
901 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
908 dSP; dTARGET; tryAMAGICbin(scmp,0);
911 SETi( sv_cmp(left, right) );
917 dSP; dATARGET; tryAMAGICbin(band,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(bxor,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; dATARGET; tryAMAGICbin(bor,opASSIGN);
956 if (SvNIOKp(left) || SvNIOKp(right)) {
957 unsigned long value = U_L(SvNV(left));
958 value = value | U_L(SvNV(right));
962 do_vop(op->op_type, TARG, left, right);
971 dSP; dTARGET; tryAMAGICun(neg);
978 else if (SvPOKp(sv)) {
980 char *s = SvPV(sv, len);
981 if (isALPHA(*s) || *s == '_') {
982 sv_setpvn(TARG, "-", 1);
985 else if (*s == '+' || *s == '-') {
987 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
990 sv_setnv(TARG, -SvNV(sv));
1002 dSP; tryAMAGICunSET(not);
1003 #endif /* OVERLOAD */
1004 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1010 dSP; dTARGET; tryAMAGICun(compl);
1018 SETn( (double) ~U_L(SvNV(sv)) );
1023 register char *tmps;
1024 register long *tmpl;
1028 tmps = SvPV_force(TARG, len);
1031 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1034 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1038 for ( ; anum > 0; anum--, tmps++)
1047 /* integer versions of some of the above */
1051 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1054 SETi( left * right );
1061 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1065 DIE("Illegal division by zero");
1066 value = POPi / value;
1074 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1077 SETi( left % right );
1084 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1087 SETi( left + right );
1094 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1097 SETi( left - right );
1104 dSP; tryAMAGICbinSET(lt,0);
1107 SETs((left < right) ? &sv_yes : &sv_no);
1114 dSP; tryAMAGICbinSET(gt,0);
1117 SETs((left > right) ? &sv_yes : &sv_no);
1124 dSP; tryAMAGICbinSET(le,0);
1127 SETs((left <= right) ? &sv_yes : &sv_no);
1134 dSP; tryAMAGICbinSET(ge,0);
1137 SETs((left >= right) ? &sv_yes : &sv_no);
1144 dSP; tryAMAGICbinSET(eq,0);
1147 SETs((left == right) ? &sv_yes : &sv_no);
1154 dSP; tryAMAGICbinSET(ne,0);
1157 SETs((left != right) ? &sv_yes : &sv_no);
1164 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1171 else if (left < right)
1182 dSP; dTARGET; tryAMAGICun(neg);
1187 /* High falutin' math. */
1191 dSP; dTARGET; tryAMAGICbin(atan2,0);
1194 SETn(atan2(left, right));
1201 dSP; dTARGET; tryAMAGICun(sin);
1213 dSP; dTARGET; tryAMAGICun(cos);
1234 value = rand() * value / 2147483648.0;
1237 value = rand() * value / 65536.0;
1240 value = rand() * value / 32768.0;
1242 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1257 # include <starlet.h>
1258 unsigned int when[2];
1259 _ckvmssts(sys$gettim(when));
1260 anum = when[0] ^ when[1];
1262 # if defined(I_SYS_TIME) && !defined(PLAN9)
1263 struct timeval when;
1264 gettimeofday(&when,(struct timezone *) 0);
1265 anum = when.tv_sec ^ when.tv_usec;
1272 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1273 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1274 /* What is a good hashing algorithm here? */
1275 anum ^= ( ( 269 * (U32)getpid())
1276 ^ (26107 * (U32)&when)
1277 ^ (73819 * (U32)stack_sp));
1289 dSP; dTARGET; tryAMAGICun(exp);
1301 dSP; dTARGET; tryAMAGICun(log);
1306 DIE("Can't take log of %g", value);
1315 dSP; dTARGET; tryAMAGICun(sqrt);
1320 DIE("Can't take sqrt of %g", value);
1321 value = sqrt(value);
1333 (void)modf(value, &value);
1335 (void)modf(-value, &value);
1344 dSP; dTARGET; tryAMAGICun(abs);
1361 unsigned long value;
1365 value = scan_hex(tmps, 99, &argtype);
1376 unsigned long value;
1381 while (*tmps && isSPACE(*tmps))
1386 value = scan_hex(++tmps, 99, &argtype);
1388 value = scan_oct(tmps, 99, &argtype);
1401 SETi( sv_len(TOPs) );
1413 I32 lvalue = op->op_flags & OPf_MOD;
1415 I32 arybase = curcop->cop_arybase;
1419 pos = POPi - arybase;
1421 tmps = SvPV(sv, curlen);
1423 pos += curlen + arybase;
1424 if (pos < 0 || pos > curlen) {
1425 if (dowarn || lvalue)
1426 warn("substr outside of string");
1433 len += curlen - pos;
1438 rem = curlen - pos; /* rem=how many bytes left*/
1441 sv_setpvn(TARG, tmps, rem);
1442 if (lvalue) { /* it's an lvalue! */
1443 if (!SvGMAGICAL(sv))
1444 (void)SvPOK_only(sv);
1445 if (SvTYPE(TARG) < SVt_PVLV) {
1446 sv_upgrade(TARG, SVt_PVLV);
1447 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1452 LvTARGOFF(TARG) = pos;
1453 LvTARGLEN(TARG) = rem;
1456 PUSHs(TARG); /* avoid SvSETMAGIC here */
1463 register I32 size = POPi;
1464 register I32 offset = POPi;
1465 register SV *src = POPs;
1466 I32 lvalue = op->op_flags & OPf_MOD;
1468 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1469 unsigned long retnum;
1472 offset *= size; /* turn into bit offset */
1473 len = (offset + size + 7) / 8;
1474 if (offset < 0 || size < 1)
1477 if (lvalue) { /* it's an lvalue! */
1478 if (SvTYPE(TARG) < SVt_PVLV) {
1479 sv_upgrade(TARG, SVt_PVLV);
1480 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1485 LvTARGOFF(TARG) = offset;
1486 LvTARGLEN(TARG) = size;
1494 if (offset >= srclen)
1497 retnum = (unsigned long) s[offset] << 8;
1499 else if (size == 32) {
1500 if (offset >= srclen)
1502 else if (offset + 1 >= srclen)
1503 retnum = (unsigned long) s[offset] << 24;
1504 else if (offset + 2 >= srclen)
1505 retnum = ((unsigned long) s[offset] << 24) +
1506 ((unsigned long) s[offset + 1] << 16);
1508 retnum = ((unsigned long) s[offset] << 24) +
1509 ((unsigned long) s[offset + 1] << 16) +
1510 (s[offset + 2] << 8);
1515 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1520 else if (size == 16)
1521 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1522 else if (size == 32)
1523 retnum = ((unsigned long) s[offset] << 24) +
1524 ((unsigned long) s[offset + 1] << 16) +
1525 (s[offset + 2] << 8) + s[offset+3];
1529 sv_setiv(TARG, (I32)retnum);
1544 I32 arybase = curcop->cop_arybase;
1549 offset = POPi - arybase;
1552 tmps = SvPV(big, biglen);
1555 else if (offset > biglen)
1557 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1558 (unsigned char*)tmps + biglen, little)))
1559 retval = -1 + arybase;
1561 retval = tmps2 - tmps + arybase;
1578 I32 arybase = curcop->cop_arybase;
1584 tmps2 = SvPV(little, llen);
1585 tmps = SvPV(big, blen);
1589 offset = SvIV(offstr) - arybase + llen;
1592 else if (offset > blen)
1594 if (!(tmps2 = rninstr(tmps, tmps + offset,
1595 tmps2, tmps2 + llen)))
1596 retval = -1 + arybase;
1598 retval = tmps2 - tmps + arybase;
1605 dSP; dMARK; dORIGMARK; dTARGET;
1606 do_sprintf(TARG, SP-MARK, MARK+1);
1620 value = (I32) (*tmps & 255);
1625 value = (I32) (anum & 255);
1636 (void)SvUPGRADE(TARG,SVt_PV);
1642 (void)SvPOK_only(TARG);
1649 dSP; dTARGET; dPOPTOPssrl;
1651 char *tmps = SvPV(left, na);
1653 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1655 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1659 "The crypt() function is unimplemented due to excessive paranoia.");
1671 if (!SvPADTMP(sv)) {
1677 s = SvPV_force(sv, na);
1690 if (!SvPADTMP(sv)) {
1696 s = SvPV_force(sv, na);
1709 register char *send;
1712 if (!SvPADTMP(sv)) {
1718 s = SvPV_force(sv, len);
1733 register char *send;
1736 if (!SvPADTMP(sv)) {
1742 s = SvPV_force(sv, len);
1757 register char *s = SvPV(sv,len);
1761 (void)SvUPGRADE(TARG, SVt_PV);
1762 SvGROW(TARG, (len * 2) + 1);
1770 SvCUR_set(TARG, d - SvPVX(TARG));
1771 (void)SvPOK_only(TARG);
1774 sv_setpvn(TARG, s, len);
1783 dSP; dMARK; dORIGMARK;
1785 register AV* av = (AV*)POPs;
1786 register I32 lval = op->op_flags & OPf_MOD;
1787 I32 arybase = curcop->cop_arybase;
1790 if (SvTYPE(av) == SVt_PVAV) {
1791 if (lval && op->op_private & OPpLVAL_INTRO) {
1793 for (svp = mark + 1; svp <= sp; svp++) {
1798 if (max > AvMAX(av))
1801 while (++MARK <= SP) {
1802 elem = SvIVx(*MARK);
1806 svp = av_fetch(av, elem, lval);
1808 if (!svp || *svp == &sv_undef)
1809 DIE(no_aelem, elem);
1810 if (op->op_private & OPpLVAL_INTRO)
1813 *MARK = svp ? *svp : &sv_undef;
1816 if (GIMME != G_ARRAY) {
1824 /* Associative arrays. */
1829 HV *hash = (HV*)POPs;
1833 entry = hv_iternext(hash); /* might clobber stack_sp */
1838 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1839 if (GIMME == G_ARRAY) {
1841 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1846 else if (GIMME == G_SCALAR)
1869 if (SvTYPE(hv) != SVt_PVHV) {
1870 DIE("Not a HASH reference");
1872 sv = hv_delete_ent(hv, tmpsv,
1873 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1886 if (SvTYPE(hv) != SVt_PVHV) {
1887 DIE("Not a HASH reference");
1889 if (hv_exists_ent(hv, tmpsv, 0))
1896 dSP; dMARK; dORIGMARK;
1898 register HV *hv = (HV*)POPs;
1899 register I32 lval = op->op_flags & OPf_MOD;
1901 if (SvTYPE(hv) == SVt_PVHV) {
1902 while (++MARK <= SP) {
1905 he = hv_fetch_ent(hv, keysv, lval, 0);
1907 if (!he || HeVAL(he) == &sv_undef)
1908 DIE(no_helem, SvPV(keysv, na));
1909 if (op->op_private & OPpLVAL_INTRO)
1910 save_svref(&HeVAL(he));
1912 *MARK = he ? HeVAL(he) : &sv_undef;
1915 if (GIMME != G_ARRAY) {
1923 /* List operators. */
1928 if (GIMME != G_ARRAY) {
1930 *MARK = *SP; /* unwanted list, return last item */
1941 SV **lastrelem = stack_sp;
1942 SV **lastlelem = stack_base + POPMARK;
1943 SV **firstlelem = stack_base + POPMARK + 1;
1944 register SV **firstrelem = lastlelem + 1;
1945 I32 arybase = curcop->cop_arybase;
1946 I32 lval = op->op_flags & OPf_MOD;
1947 I32 is_something_there = lval;
1949 register I32 max = lastrelem - lastlelem;
1950 register SV **lelem;
1953 if (GIMME != G_ARRAY) {
1954 ix = SvIVx(*lastlelem);
1959 if (ix < 0 || ix >= max)
1960 *firstlelem = &sv_undef;
1962 *firstlelem = firstrelem[ix];
1968 SP = firstlelem - 1;
1972 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
1978 else if (!(*lelem = firstrelem[ix]))
1983 if (ix >= max || !(*lelem = firstrelem[ix]))
1986 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
1987 is_something_there = TRUE;
1989 if (is_something_there)
1992 SP = firstlelem - 1;
1999 I32 items = SP - MARK;
2001 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2007 dSP; dMARK; dORIGMARK;
2009 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2013 SV *val = NEWSV(46, 0);
2015 sv_setsv(val, *++MARK);
2017 warn("Odd number of elements in hash list");
2018 (void)hv_store_ent(hv,key,val,0);
2027 dSP; dMARK; dORIGMARK;
2028 register AV *ary = (AV*)*++MARK;
2032 register I32 offset;
2033 register I32 length;
2042 offset = SvIVx(*MARK);
2044 offset += AvFILL(ary) + 1;
2046 offset -= curcop->cop_arybase;
2048 length = SvIVx(*MARK++);
2053 length = AvMAX(ary) + 1; /* close enough to infinity */
2057 length = AvMAX(ary) + 1;
2065 if (offset > AvFILL(ary) + 1)
2066 offset = AvFILL(ary) + 1;
2067 after = AvFILL(ary) + 1 - (offset + length);
2068 if (after < 0) { /* not that much array */
2069 length += after; /* offset+length now in array */
2075 /* At this point, MARK .. SP-1 is our new LIST */
2078 diff = newlen - length;
2080 if (diff < 0) { /* shrinking the area */
2082 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2083 Copy(MARK, tmparyval, newlen, SV*);
2086 MARK = ORIGMARK + 1;
2087 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2088 MEXTEND(MARK, length);
2089 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2091 for (i = length, dst = MARK; i; i--)
2092 sv_2mortal(*dst++); /* free them eventualy */
2097 *MARK = AvARRAY(ary)[offset+length-1];
2100 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2101 SvREFCNT_dec(*dst++); /* free them now */
2104 AvFILL(ary) += diff;
2106 /* pull up or down? */
2108 if (offset < after) { /* easier to pull up */
2109 if (offset) { /* esp. if nothing to pull */
2110 src = &AvARRAY(ary)[offset-1];
2111 dst = src - diff; /* diff is negative */
2112 for (i = offset; i > 0; i--) /* can't trust Copy */
2116 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2120 if (after) { /* anything to pull down? */
2121 src = AvARRAY(ary) + offset + length;
2122 dst = src + diff; /* diff is negative */
2123 Move(src, dst, after, SV*);
2125 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2126 /* avoid later double free */
2130 dst[--i] = &sv_undef;
2133 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2135 *dst = NEWSV(46, 0);
2136 sv_setsv(*dst++, *src++);
2138 Safefree(tmparyval);
2141 else { /* no, expanding (or same) */
2143 New(452, tmparyval, length, SV*); /* so remember deletion */
2144 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2147 if (diff > 0) { /* expanding */
2149 /* push up or down? */
2151 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2155 Move(src, dst, offset, SV*);
2157 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2159 AvFILL(ary) += diff;
2162 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2163 av_extend(ary, AvFILL(ary) + diff);
2164 AvFILL(ary) += diff;
2167 dst = AvARRAY(ary) + AvFILL(ary);
2169 for (i = after; i; i--) {
2176 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2177 *dst = NEWSV(46, 0);
2178 sv_setsv(*dst++, *src++);
2180 MARK = ORIGMARK + 1;
2181 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2183 Copy(tmparyval, MARK, length, SV*);
2185 for (i = length, dst = MARK; i; i--)
2186 sv_2mortal(*dst++); /* free them eventualy */
2188 Safefree(tmparyval);
2192 else if (length--) {
2193 *MARK = tmparyval[length];
2196 while (length-- > 0)
2197 SvREFCNT_dec(tmparyval[length]);
2199 Safefree(tmparyval);
2210 dSP; dMARK; dORIGMARK; dTARGET;
2211 register AV *ary = (AV*)*++MARK;
2212 register SV *sv = &sv_undef;
2214 for (++MARK; MARK <= SP; MARK++) {
2217 sv_setsv(sv, *MARK);
2221 PUSHi( AvFILL(ary) + 1 );
2229 SV *sv = av_pop(av);
2230 if (sv != &sv_undef && AvREAL(av))
2231 (void)sv_2mortal(sv);
2240 SV *sv = av_shift(av);
2244 if (sv != &sv_undef && AvREAL(av))
2245 (void)sv_2mortal(sv);
2252 dSP; dMARK; dORIGMARK; dTARGET;
2253 register AV *ary = (AV*)*++MARK;
2257 av_unshift(ary, SP - MARK);
2260 sv_setsv(sv, *++MARK);
2261 (void)av_store(ary, i++, sv);
2265 PUSHi( AvFILL(ary) + 1 );
2275 if (GIMME == G_ARRAY) {
2286 register char *down;
2292 do_join(TARG, &sv_no, MARK, SP);
2294 sv_setsv(TARG, *SP);
2295 up = SvPV_force(TARG, len);
2297 down = SvPVX(TARG) + len - 1;
2303 (void)SvPOK_only(TARG);
2311 /* Explosives and implosives. */
2320 register char *pat = SvPV(left, llen);
2321 register char *s = SvPV(right, rlen);
2322 char *strend = s + rlen;
2324 register char *patend = pat + llen;
2329 /* These must not be in registers: */
2340 unsigned Quad_t auquad;
2346 register U32 culong;
2348 static char* bitcount = 0;
2350 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2352 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2353 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2355 while (isDIGIT(*patend) || *patend == '*')
2361 while (pat < patend) {
2366 else if (*pat == '*') {
2367 len = strend - strbeg; /* long enough */
2370 else if (isDIGIT(*pat)) {
2372 while (isDIGIT(*pat))
2373 len = (len * 10) + (*pat++ - '0');
2376 len = (datumtype != '@');
2381 if (len == 1 && pat[-1] != '1')
2390 if (len > strend - strbeg)
2391 DIE("@ outside of string");
2395 if (len > s - strbeg)
2396 DIE("X outside of string");
2400 if (len > strend - s)
2401 DIE("x outside of string");
2406 if (len > strend - s)
2409 goto uchar_checksum;
2410 sv = NEWSV(35, len);
2411 sv_setpvn(sv, s, len);
2413 if (datumtype == 'A') {
2414 aptr = s; /* borrow register */
2415 s = SvPVX(sv) + len - 1;
2416 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2419 SvCUR_set(sv, s - SvPVX(sv));
2420 s = aptr; /* unborrow register */
2422 XPUSHs(sv_2mortal(sv));
2426 if (pat[-1] == '*' || len > (strend - s) * 8)
2427 len = (strend - s) * 8;
2430 Newz(601, bitcount, 256, char);
2431 for (bits = 1; bits < 256; bits++) {
2432 if (bits & 1) bitcount[bits]++;
2433 if (bits & 2) bitcount[bits]++;
2434 if (bits & 4) bitcount[bits]++;
2435 if (bits & 8) bitcount[bits]++;
2436 if (bits & 16) bitcount[bits]++;
2437 if (bits & 32) bitcount[bits]++;
2438 if (bits & 64) bitcount[bits]++;
2439 if (bits & 128) bitcount[bits]++;
2443 culong += bitcount[*(unsigned char*)s++];
2448 if (datumtype == 'b') {
2450 if (bits & 1) culong++;
2456 if (bits & 128) culong++;
2463 sv = NEWSV(35, len + 1);
2466 aptr = pat; /* borrow register */
2468 if (datumtype == 'b') {
2470 for (len = 0; len < aint; len++) {
2471 if (len & 7) /*SUPPRESS 595*/
2475 *pat++ = '0' + (bits & 1);
2480 for (len = 0; len < aint; len++) {
2485 *pat++ = '0' + ((bits & 128) != 0);
2489 pat = aptr; /* unborrow register */
2490 XPUSHs(sv_2mortal(sv));
2494 if (pat[-1] == '*' || len > (strend - s) * 2)
2495 len = (strend - s) * 2;
2496 sv = NEWSV(35, len + 1);
2499 aptr = pat; /* borrow register */
2501 if (datumtype == 'h') {
2503 for (len = 0; len < aint; len++) {
2508 *pat++ = hexdigit[bits & 15];
2513 for (len = 0; len < aint; len++) {
2518 *pat++ = hexdigit[(bits >> 4) & 15];
2522 pat = aptr; /* unborrow register */
2523 XPUSHs(sv_2mortal(sv));
2526 if (len > strend - s)
2531 if (aint >= 128) /* fake up signed chars */
2540 if (aint >= 128) /* fake up signed chars */
2543 sv_setiv(sv, (I32)aint);
2544 PUSHs(sv_2mortal(sv));
2549 if (len > strend - s)
2563 sv_setiv(sv, (I32)auint);
2564 PUSHs(sv_2mortal(sv));
2569 along = (strend - s) / sizeof(I16);
2574 Copy(s, &ashort, 1, I16);
2582 Copy(s, &ashort, 1, I16);
2585 sv_setiv(sv, (I32)ashort);
2586 PUSHs(sv_2mortal(sv));
2593 along = (strend - s) / sizeof(U16);
2598 Copy(s, &aushort, 1, U16);
2601 if (datumtype == 'n')
2602 aushort = ntohs(aushort);
2605 if (datumtype == 'v')
2606 aushort = vtohs(aushort);
2614 Copy(s, &aushort, 1, U16);
2618 if (datumtype == 'n')
2619 aushort = ntohs(aushort);
2622 if (datumtype == 'v')
2623 aushort = vtohs(aushort);
2625 sv_setiv(sv, (I32)aushort);
2626 PUSHs(sv_2mortal(sv));
2631 along = (strend - s) / sizeof(int);
2636 Copy(s, &aint, 1, int);
2639 cdouble += (double)aint;
2647 Copy(s, &aint, 1, int);
2650 sv_setiv(sv, (I32)aint);
2651 PUSHs(sv_2mortal(sv));
2656 along = (strend - s) / sizeof(unsigned int);
2661 Copy(s, &auint, 1, unsigned int);
2662 s += sizeof(unsigned int);
2664 cdouble += (double)auint;
2672 Copy(s, &auint, 1, unsigned int);
2673 s += sizeof(unsigned int);
2675 sv_setiv(sv, (I32)auint);
2676 PUSHs(sv_2mortal(sv));
2681 along = (strend - s) / sizeof(I32);
2686 Copy(s, &along, 1, I32);
2689 cdouble += (double)along;
2697 Copy(s, &along, 1, I32);
2700 sv_setiv(sv, (I32)along);
2701 PUSHs(sv_2mortal(sv));
2708 along = (strend - s) / sizeof(U32);
2713 Copy(s, &aulong, 1, U32);
2716 if (datumtype == 'N')
2717 aulong = ntohl(aulong);
2720 if (datumtype == 'V')
2721 aulong = vtohl(aulong);
2724 cdouble += (double)aulong;
2732 Copy(s, &aulong, 1, U32);
2736 if (datumtype == 'N')
2737 aulong = ntohl(aulong);
2740 if (datumtype == 'V')
2741 aulong = vtohl(aulong);
2743 sv_setnv(sv, (double)aulong);
2744 PUSHs(sv_2mortal(sv));
2749 along = (strend - s) / sizeof(char*);
2754 if (sizeof(char*) > strend - s)
2757 Copy(s, &aptr, 1, char*);
2763 PUSHs(sv_2mortal(sv));
2768 if (sizeof(char*) > strend - s)
2771 Copy(s, &aptr, 1, char*);
2776 sv_setpvn(sv, aptr, len);
2777 PUSHs(sv_2mortal(sv));
2783 if (s + sizeof(Quad_t) > strend)
2786 Copy(s, &aquad, 1, Quad_t);
2787 s += sizeof(Quad_t);
2790 sv_setiv(sv, (IV)aquad);
2791 PUSHs(sv_2mortal(sv));
2797 if (s + sizeof(unsigned Quad_t) > strend)
2800 Copy(s, &auquad, 1, unsigned Quad_t);
2801 s += sizeof(unsigned Quad_t);
2804 sv_setiv(sv, (IV)auquad);
2805 PUSHs(sv_2mortal(sv));
2809 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2812 along = (strend - s) / sizeof(float);
2817 Copy(s, &afloat, 1, float);
2825 Copy(s, &afloat, 1, float);
2828 sv_setnv(sv, (double)afloat);
2829 PUSHs(sv_2mortal(sv));
2835 along = (strend - s) / sizeof(double);
2840 Copy(s, &adouble, 1, double);
2841 s += sizeof(double);
2848 Copy(s, &adouble, 1, double);
2849 s += sizeof(double);
2851 sv_setnv(sv, (double)adouble);
2852 PUSHs(sv_2mortal(sv));
2857 along = (strend - s) * 3 / 4;
2858 sv = NEWSV(42, along);
2861 while (s < strend && *s > ' ' && *s < 'a') {
2866 len = (*s++ - ' ') & 077;
2868 if (s < strend && *s >= ' ')
2869 a = (*s++ - ' ') & 077;
2872 if (s < strend && *s >= ' ')
2873 b = (*s++ - ' ') & 077;
2876 if (s < strend && *s >= ' ')
2877 c = (*s++ - ' ') & 077;
2880 if (s < strend && *s >= ' ')
2881 d = (*s++ - ' ') & 077;
2884 hunk[0] = a << 2 | b >> 4;
2885 hunk[1] = b << 4 | c >> 2;
2886 hunk[2] = c << 6 | d;
2887 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2892 else if (s[1] == '\n') /* possible checksum byte */
2895 XPUSHs(sv_2mortal(sv));
2900 if (strchr("fFdD", datumtype) ||
2901 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
2905 while (checksum >= 16) {
2909 while (checksum >= 4) {
2915 along = (1 << checksum) - 1;
2916 while (cdouble < 0.0)
2918 cdouble = modf(cdouble / adouble, &trouble) * adouble;
2919 sv_setnv(sv, cdouble);
2922 if (checksum < 32) {
2923 along = (1 << checksum) - 1;
2924 culong &= (U32)along;
2926 sv_setnv(sv, (double)culong);
2928 XPUSHs(sv_2mortal(sv));
2936 doencodes(sv, s, len)
2944 sv_catpvn(sv, hunk, 1);
2947 hunk[0] = ' ' + (077 & (*s >> 2));
2948 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
2949 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
2950 hunk[3] = ' ' + (077 & (s[2] & 077));
2951 sv_catpvn(sv, hunk, 4);
2955 for (s = SvPVX(sv); *s; s++) {
2959 sv_catpvn(sv, "\n", 1);
2964 dSP; dMARK; dORIGMARK; dTARGET;
2965 register SV *cat = TARG;
2968 register char *pat = SvPVx(*++MARK, fromlen);
2969 register char *patend = pat + fromlen;
2974 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
2975 static char *space10 = " ";
2977 /* These must not be in registers: */
2986 unsigned Quad_t auquad;
2994 sv_setpvn(cat, "", 0);
2995 while (pat < patend) {
2996 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
2999 len = strchr("@Xxu", datumtype) ? 0 : items;
3002 else if (isDIGIT(*pat)) {
3004 while (isDIGIT(*pat))
3005 len = (len * 10) + (*pat++ - '0');
3013 DIE("%% may only be used in unpack");
3024 if (SvCUR(cat) < len)
3025 DIE("X outside of string");
3032 sv_catpvn(cat, null10, 10);
3035 sv_catpvn(cat, null10, len);
3040 aptr = SvPV(fromstr, fromlen);
3044 sv_catpvn(cat, aptr, len);
3046 sv_catpvn(cat, aptr, fromlen);
3048 if (datumtype == 'A') {
3050 sv_catpvn(cat, space10, 10);
3053 sv_catpvn(cat, space10, len);
3057 sv_catpvn(cat, null10, 10);
3060 sv_catpvn(cat, null10, len);
3067 char *savepat = pat;
3072 aptr = SvPV(fromstr, fromlen);
3077 SvCUR(cat) += (len+7)/8;
3078 SvGROW(cat, SvCUR(cat) + 1);
3079 aptr = SvPVX(cat) + aint;
3084 if (datumtype == 'B') {
3085 for (len = 0; len++ < aint;) {
3086 items |= *pat++ & 1;
3090 *aptr++ = items & 0xff;
3096 for (len = 0; len++ < aint;) {
3102 *aptr++ = items & 0xff;
3108 if (datumtype == 'B')
3109 items <<= 7 - (aint & 7);
3111 items >>= 7 - (aint & 7);
3112 *aptr++ = items & 0xff;
3114 pat = SvPVX(cat) + SvCUR(cat);
3125 char *savepat = pat;
3130 aptr = SvPV(fromstr, fromlen);
3135 SvCUR(cat) += (len+1)/2;
3136 SvGROW(cat, SvCUR(cat) + 1);
3137 aptr = SvPVX(cat) + aint;
3142 if (datumtype == 'H') {
3143 for (len = 0; len++ < aint;) {
3145 items |= ((*pat++ & 15) + 9) & 15;
3147 items |= *pat++ & 15;
3151 *aptr++ = items & 0xff;
3157 for (len = 0; len++ < aint;) {
3159 items |= (((*pat++ & 15) + 9) & 15) << 4;
3161 items |= (*pat++ & 15) << 4;
3165 *aptr++ = items & 0xff;
3171 *aptr++ = items & 0xff;
3172 pat = SvPVX(cat) + SvCUR(cat);
3184 aint = SvIV(fromstr);
3186 sv_catpvn(cat, &achar, sizeof(char));
3189 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3194 afloat = (float)SvNV(fromstr);
3195 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3202 adouble = (double)SvNV(fromstr);
3203 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3209 ashort = (I16)SvIV(fromstr);
3211 ashort = htons(ashort);
3213 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3219 ashort = (I16)SvIV(fromstr);
3221 ashort = htovs(ashort);
3223 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3230 ashort = (I16)SvIV(fromstr);
3231 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3237 auint = U_I(SvNV(fromstr));
3238 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3244 aint = SvIV(fromstr);
3245 sv_catpvn(cat, (char*)&aint, sizeof(int));
3251 aulong = U_L(SvNV(fromstr));
3253 aulong = htonl(aulong);
3255 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3261 aulong = U_L(SvNV(fromstr));
3263 aulong = htovl(aulong);
3265 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3271 aulong = U_L(SvNV(fromstr));
3272 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3278 along = SvIV(fromstr);
3279 sv_catpvn(cat, (char*)&along, sizeof(I32));
3286 auquad = (unsigned Quad_t)SvIV(fromstr);
3287 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3293 aquad = (Quad_t)SvIV(fromstr);
3294 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3297 #endif /* HAS_QUAD */
3299 len = 1; /* assume SV is correct length */
3304 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3305 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3310 aptr = SvPV(fromstr, fromlen);
3311 SvGROW(cat, fromlen * 4 / 3);
3316 while (fromlen > 0) {
3323 doencodes(cat, aptr, todo);
3341 register I32 limit = POPi; /* note, negative is forever */
3344 register char *s = SvPV(sv, len);
3345 char *strend = s + len;
3346 register PMOP *pm = (PMOP*)POPs;
3350 I32 maxiters = (strend - s) + 10;
3353 I32 origlimit = limit;
3356 AV *oldstack = curstack;
3357 register REGEXP *rx = pm->op_pmregexp;
3359 I32 oldsave = savestack_ix;
3362 DIE("panic: do_split");
3363 if (pm->op_pmreplroot)
3364 ary = GvAVn((GV*)pm->op_pmreplroot);
3365 else if (gimme != G_ARRAY)
3369 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3373 for (i = AvFILL(ary); i >= 0; i--)
3374 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3378 /* temporarily switch stacks */
3379 SWITCHSTACK(curstack, ary);
3381 base = SP - stack_base;
3383 if (pm->op_pmflags & PMf_SKIPWHITE) {
3387 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3389 multiline = pm->op_pmflags & PMf_MULTILINE;
3393 limit = maxiters + 2;
3394 if (pm->op_pmflags & PMf_WHITE) {
3397 for (m = s; m < strend && !isSPACE(*m); m++) ;
3400 dstr = NEWSV(30, m-s);
3401 sv_setpvn(dstr, s, m-s);
3406 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3409 else if (strEQ("^", rx->precomp)) {
3412 for (m = s; m < strend && *m != '\n'; m++) ;
3416 dstr = NEWSV(30, m-s);
3417 sv_setpvn(dstr, s, m-s);
3424 else if (pm->op_pmshort) {
3425 i = SvCUR(pm->op_pmshort);
3427 I32 fold = (pm->op_pmflags & PMf_FOLD);
3428 i = *SvPVX(pm->op_pmshort);
3429 if (fold && isUPPER(i))
3434 m < strend && *m != i &&
3435 (!isUPPER(*m) || toLOWER(*m) != i);
3436 m++) /*SUPPRESS 530*/
3439 else /*SUPPRESS 530*/
3440 for (m = s; m < strend && *m != i; m++) ;
3443 dstr = NEWSV(30, m-s);
3444 sv_setpvn(dstr, s, m-s);
3453 while (s < strend && --limit &&
3454 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3458 dstr = NEWSV(31, m-s);
3459 sv_setpvn(dstr, s, m-s);
3468 maxiters += (strend - s) * rx->nparens;
3469 while (s < strend && --limit &&
3470 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3472 && rx->subbase != orig) {
3477 strend = s + (strend - m);
3480 dstr = NEWSV(32, m-s);
3481 sv_setpvn(dstr, s, m-s);
3486 for (i = 1; i <= rx->nparens; i++) {
3490 dstr = NEWSV(33, m-s);
3491 sv_setpvn(dstr, s, m-s);
3494 dstr = NEWSV(33, 0);
3503 LEAVE_SCOPE(oldsave);
3504 iters = (SP - stack_base) - base;
3505 if (iters > maxiters)
3508 /* keep field after final delim? */
3509 if (s < strend || (iters && origlimit)) {
3510 dstr = NEWSV(34, strend-s);
3511 sv_setpvn(dstr, s, strend-s);
3517 else if (!origlimit) {
3518 while (iters > 0 && SvCUR(TOPs) == 0)
3522 SWITCHSTACK(ary, oldstack);
3523 if (gimme == G_ARRAY) {
3525 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3531 if (gimme == G_ARRAY)
3534 if (iters || !pm->op_pmreplroot) {