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);
695 DIE("Illegal modulus zero");
698 value = (UV)value % uval;
700 value = (uval - ((UV)(-value - 1) % uval)) - 1;
709 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
711 register I32 count = POPi;
712 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
714 I32 items = SP - MARK;
726 repeatcpy((char*)(MARK + items), (char*)MARK,
727 items * sizeof(SV*), count - 1);
733 else { /* Note: mark already snarfed by pp_list */
738 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
739 if (SvREADONLY(tmpstr) && curcop != &compiling)
740 DIE("Can't x= to readonly value");
744 SvSetSV(TARG, tmpstr);
745 SvPV_force(TARG, len);
747 SvGROW(TARG, (count * len) + 1);
749 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
750 SvCUR(TARG) *= count;
752 (void)SvPOK_only(TARG);
755 sv_setsv(TARG, &sv_no);
764 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
767 SETn( left - right );
774 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
777 SETi( left << right );
784 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
787 SETi( left >> right );
794 dSP; tryAMAGICbinSET(lt,0);
797 SETs((TOPn < value) ? &sv_yes : &sv_no);
804 dSP; tryAMAGICbinSET(gt,0);
807 SETs((TOPn > value) ? &sv_yes : &sv_no);
814 dSP; tryAMAGICbinSET(le,0);
817 SETs((TOPn <= value) ? &sv_yes : &sv_no);
824 dSP; tryAMAGICbinSET(ge,0);
827 SETs((TOPn >= value) ? &sv_yes : &sv_no);
834 dSP; tryAMAGICbinSET(ne,0);
837 SETs((TOPn != value) ? &sv_yes : &sv_no);
844 dSP; dTARGET; tryAMAGICbin(ncmp,0);
851 else if (left < right)
862 dSP; tryAMAGICbinSET(slt,0);
865 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
872 dSP; tryAMAGICbinSET(sgt,0);
875 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
882 dSP; tryAMAGICbinSET(sle,0);
885 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
892 dSP; tryAMAGICbinSET(sge,0);
895 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
902 dSP; tryAMAGICbinSET(sne,0);
905 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
912 dSP; dTARGET; tryAMAGICbin(scmp,0);
915 SETi( sv_cmp(left, right) );
921 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
924 if (SvNIOKp(left) || SvNIOKp(right)) {
925 unsigned long value = U_L(SvNV(left));
926 value = value & U_L(SvNV(right));
927 if ((IV)value == value)
933 do_vop(op->op_type, TARG, left, right);
942 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
945 if (SvNIOKp(left) || SvNIOKp(right)) {
946 unsigned long value = U_L(SvNV(left));
947 value = value ^ U_L(SvNV(right));
948 if ((IV)value == value)
954 do_vop(op->op_type, TARG, left, right);
963 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
966 if (SvNIOKp(left) || SvNIOKp(right)) {
967 unsigned long value = U_L(SvNV(left));
968 value = value | U_L(SvNV(right));
969 if ((IV)value == value)
975 do_vop(op->op_type, TARG, left, right);
984 dSP; dTARGET; tryAMAGICun(neg);
991 else if (SvPOKp(sv)) {
993 char *s = SvPV(sv, len);
994 if (isALPHA(*s) || *s == '_') {
995 sv_setpvn(TARG, "-", 1);
998 else if (*s == '+' || *s == '-') {
1000 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1003 sv_setnv(TARG, -SvNV(sv));
1015 dSP; tryAMAGICunSET(not);
1016 #endif /* OVERLOAD */
1017 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1023 dSP; dTARGET; tryAMAGICun(compl);
1029 UV value = ~SvIV(sv);
1030 if ((IV)value == value)
1033 SETn((double)value);
1036 register char *tmps;
1037 register long *tmpl;
1041 tmps = SvPV_force(TARG, len);
1044 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1047 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1051 for ( ; anum > 0; anum--, tmps++)
1060 /* integer versions of some of the above */
1064 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1067 SETi( left * right );
1074 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1078 DIE("Illegal division by zero");
1079 value = POPi / value;
1087 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1090 SETi( left % right );
1097 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1100 SETi( left + right );
1107 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1110 SETi( left - right );
1117 dSP; tryAMAGICbinSET(lt,0);
1120 SETs((left < right) ? &sv_yes : &sv_no);
1127 dSP; tryAMAGICbinSET(gt,0);
1130 SETs((left > right) ? &sv_yes : &sv_no);
1137 dSP; tryAMAGICbinSET(le,0);
1140 SETs((left <= right) ? &sv_yes : &sv_no);
1147 dSP; tryAMAGICbinSET(ge,0);
1150 SETs((left >= right) ? &sv_yes : &sv_no);
1157 dSP; tryAMAGICbinSET(eq,0);
1160 SETs((left == right) ? &sv_yes : &sv_no);
1167 dSP; tryAMAGICbinSET(ne,0);
1170 SETs((left != right) ? &sv_yes : &sv_no);
1177 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1184 else if (left < right)
1195 dSP; dTARGET; tryAMAGICun(neg);
1200 /* High falutin' math. */
1204 dSP; dTARGET; tryAMAGICbin(atan2,0);
1207 SETn(atan2(left, right));
1214 dSP; dTARGET; tryAMAGICun(sin);
1226 dSP; dTARGET; tryAMAGICun(cos);
1247 value = rand() * value / 2147483648.0;
1250 value = rand() * value / 65536.0;
1253 value = rand() * value / 32768.0;
1255 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1270 # include <starlet.h>
1271 unsigned int when[2];
1272 _ckvmssts(sys$gettim(when));
1273 anum = when[0] ^ when[1];
1275 # if defined(I_SYS_TIME) && !defined(PLAN9)
1276 struct timeval when;
1277 gettimeofday(&when,(struct timezone *) 0);
1278 anum = when.tv_sec ^ when.tv_usec;
1285 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1286 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1287 /* What is a good hashing algorithm here? */
1288 anum ^= ( ( 269 * (U32)getpid())
1289 ^ (26107 * (U32)&when)
1290 ^ (73819 * (U32)stack_sp));
1302 dSP; dTARGET; tryAMAGICun(exp);
1314 dSP; dTARGET; tryAMAGICun(log);
1319 DIE("Can't take log of %g", value);
1328 dSP; dTARGET; tryAMAGICun(sqrt);
1333 DIE("Can't take sqrt of %g", value);
1334 value = sqrt(value);
1346 (void)modf(value, &value);
1348 (void)modf(-value, &value);
1357 dSP; dTARGET; tryAMAGICun(abs);
1374 unsigned long value;
1378 value = scan_hex(tmps, 99, &argtype);
1389 unsigned long value;
1394 while (*tmps && isSPACE(*tmps))
1399 value = scan_hex(++tmps, 99, &argtype);
1401 value = scan_oct(tmps, 99, &argtype);
1414 SETi( sv_len(TOPs) );
1426 I32 lvalue = op->op_flags & OPf_MOD;
1428 I32 arybase = curcop->cop_arybase;
1432 pos = POPi - arybase;
1434 tmps = SvPV(sv, curlen);
1436 pos += curlen + arybase;
1437 if (pos < 0 || pos > curlen) {
1438 if (dowarn || lvalue)
1439 warn("substr outside of string");
1446 len += curlen - pos;
1451 rem = curlen - pos; /* rem=how many bytes left*/
1454 sv_setpvn(TARG, tmps, rem);
1455 if (lvalue) { /* it's an lvalue! */
1456 if (!SvGMAGICAL(sv)) {
1460 warn("Attempt to use reference as lvalue in substr");
1462 if (SvOK(sv)) /* is it defined ? */
1463 (void)SvPOK_only(sv);
1465 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1467 if (SvTYPE(TARG) < SVt_PVLV) {
1468 sv_upgrade(TARG, SVt_PVLV);
1469 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1474 LvTARGOFF(TARG) = pos;
1475 LvTARGLEN(TARG) = rem;
1478 PUSHs(TARG); /* avoid SvSETMAGIC here */
1485 register I32 size = POPi;
1486 register I32 offset = POPi;
1487 register SV *src = POPs;
1488 I32 lvalue = op->op_flags & OPf_MOD;
1490 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1491 unsigned long retnum;
1494 offset *= size; /* turn into bit offset */
1495 len = (offset + size + 7) / 8;
1496 if (offset < 0 || size < 1)
1499 if (lvalue) { /* it's an lvalue! */
1500 if (SvTYPE(TARG) < SVt_PVLV) {
1501 sv_upgrade(TARG, SVt_PVLV);
1502 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1507 LvTARGOFF(TARG) = offset;
1508 LvTARGLEN(TARG) = size;
1516 if (offset >= srclen)
1519 retnum = (unsigned long) s[offset] << 8;
1521 else if (size == 32) {
1522 if (offset >= srclen)
1524 else if (offset + 1 >= srclen)
1525 retnum = (unsigned long) s[offset] << 24;
1526 else if (offset + 2 >= srclen)
1527 retnum = ((unsigned long) s[offset] << 24) +
1528 ((unsigned long) s[offset + 1] << 16);
1530 retnum = ((unsigned long) s[offset] << 24) +
1531 ((unsigned long) s[offset + 1] << 16) +
1532 (s[offset + 2] << 8);
1537 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1542 else if (size == 16)
1543 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1544 else if (size == 32)
1545 retnum = ((unsigned long) s[offset] << 24) +
1546 ((unsigned long) s[offset + 1] << 16) +
1547 (s[offset + 2] << 8) + s[offset+3];
1551 sv_setiv(TARG, (I32)retnum);
1566 I32 arybase = curcop->cop_arybase;
1571 offset = POPi - arybase;
1574 tmps = SvPV(big, biglen);
1577 else if (offset > biglen)
1579 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1580 (unsigned char*)tmps + biglen, little)))
1581 retval = -1 + arybase;
1583 retval = tmps2 - tmps + arybase;
1600 I32 arybase = curcop->cop_arybase;
1606 tmps2 = SvPV(little, llen);
1607 tmps = SvPV(big, blen);
1611 offset = SvIV(offstr) - arybase + llen;
1614 else if (offset > blen)
1616 if (!(tmps2 = rninstr(tmps, tmps + offset,
1617 tmps2, tmps2 + llen)))
1618 retval = -1 + arybase;
1620 retval = tmps2 - tmps + arybase;
1627 dSP; dMARK; dORIGMARK; dTARGET;
1628 do_sprintf(TARG, SP-MARK, MARK+1);
1642 value = (I32) (*tmps & 255);
1647 value = (I32) (anum & 255);
1658 (void)SvUPGRADE(TARG,SVt_PV);
1664 (void)SvPOK_only(TARG);
1671 dSP; dTARGET; dPOPTOPssrl;
1673 char *tmps = SvPV(left, na);
1675 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1677 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1681 "The crypt() function is unimplemented due to excessive paranoia.");
1693 if (!SvPADTMP(sv)) {
1699 s = SvPV_force(sv, na);
1712 if (!SvPADTMP(sv)) {
1718 s = SvPV_force(sv, na);
1731 register char *send;
1734 if (!SvPADTMP(sv)) {
1740 s = SvPV_force(sv, len);
1755 register char *send;
1758 if (!SvPADTMP(sv)) {
1764 s = SvPV_force(sv, len);
1779 register char *s = SvPV(sv,len);
1783 (void)SvUPGRADE(TARG, SVt_PV);
1784 SvGROW(TARG, (len * 2) + 1);
1792 SvCUR_set(TARG, d - SvPVX(TARG));
1793 (void)SvPOK_only(TARG);
1796 sv_setpvn(TARG, s, len);
1805 dSP; dMARK; dORIGMARK;
1807 register AV* av = (AV*)POPs;
1808 register I32 lval = op->op_flags & OPf_MOD;
1809 I32 arybase = curcop->cop_arybase;
1812 if (SvTYPE(av) == SVt_PVAV) {
1813 if (lval && op->op_private & OPpLVAL_INTRO) {
1815 for (svp = mark + 1; svp <= sp; svp++) {
1820 if (max > AvMAX(av))
1823 while (++MARK <= SP) {
1824 elem = SvIVx(*MARK);
1828 svp = av_fetch(av, elem, lval);
1830 if (!svp || *svp == &sv_undef)
1831 DIE(no_aelem, elem);
1832 if (op->op_private & OPpLVAL_INTRO)
1835 *MARK = svp ? *svp : &sv_undef;
1838 if (GIMME != G_ARRAY) {
1846 /* Associative arrays. */
1851 HV *hash = (HV*)POPs;
1855 entry = hv_iternext(hash); /* might clobber stack_sp */
1860 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1861 if (GIMME == G_ARRAY) {
1863 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1868 else if (GIMME == G_SCALAR)
1891 if (SvTYPE(hv) != SVt_PVHV) {
1892 DIE("Not a HASH reference");
1894 sv = hv_delete_ent(hv, tmpsv,
1895 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1908 if (SvTYPE(hv) != SVt_PVHV) {
1909 DIE("Not a HASH reference");
1911 if (hv_exists_ent(hv, tmpsv, 0))
1918 dSP; dMARK; dORIGMARK;
1920 register HV *hv = (HV*)POPs;
1921 register I32 lval = op->op_flags & OPf_MOD;
1923 if (SvTYPE(hv) == SVt_PVHV) {
1924 while (++MARK <= SP) {
1927 he = hv_fetch_ent(hv, keysv, lval, 0);
1929 if (!he || HeVAL(he) == &sv_undef)
1930 DIE(no_helem, SvPV(keysv, na));
1931 if (op->op_private & OPpLVAL_INTRO)
1932 save_svref(&HeVAL(he));
1934 *MARK = he ? HeVAL(he) : &sv_undef;
1937 if (GIMME != G_ARRAY) {
1945 /* List operators. */
1950 if (GIMME != G_ARRAY) {
1952 *MARK = *SP; /* unwanted list, return last item */
1963 SV **lastrelem = stack_sp;
1964 SV **lastlelem = stack_base + POPMARK;
1965 SV **firstlelem = stack_base + POPMARK + 1;
1966 register SV **firstrelem = lastlelem + 1;
1967 I32 arybase = curcop->cop_arybase;
1968 I32 lval = op->op_flags & OPf_MOD;
1969 I32 is_something_there = lval;
1971 register I32 max = lastrelem - lastlelem;
1972 register SV **lelem;
1975 if (GIMME != G_ARRAY) {
1976 ix = SvIVx(*lastlelem);
1981 if (ix < 0 || ix >= max)
1982 *firstlelem = &sv_undef;
1984 *firstlelem = firstrelem[ix];
1990 SP = firstlelem - 1;
1994 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2000 else if (!(*lelem = firstrelem[ix]))
2005 if (ix >= max || !(*lelem = firstrelem[ix]))
2008 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2009 is_something_there = TRUE;
2011 if (is_something_there)
2014 SP = firstlelem - 1;
2021 I32 items = SP - MARK;
2023 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2029 dSP; dMARK; dORIGMARK;
2031 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2035 SV *val = NEWSV(46, 0);
2037 sv_setsv(val, *++MARK);
2039 warn("Odd number of elements in hash list");
2040 (void)hv_store_ent(hv,key,val,0);
2049 dSP; dMARK; dORIGMARK;
2050 register AV *ary = (AV*)*++MARK;
2054 register I32 offset;
2055 register I32 length;
2064 offset = SvIVx(*MARK);
2066 offset += AvFILL(ary) + 1;
2068 offset -= curcop->cop_arybase;
2070 length = SvIVx(*MARK++);
2075 length = AvMAX(ary) + 1; /* close enough to infinity */
2079 length = AvMAX(ary) + 1;
2087 if (offset > AvFILL(ary) + 1)
2088 offset = AvFILL(ary) + 1;
2089 after = AvFILL(ary) + 1 - (offset + length);
2090 if (after < 0) { /* not that much array */
2091 length += after; /* offset+length now in array */
2097 /* At this point, MARK .. SP-1 is our new LIST */
2100 diff = newlen - length;
2102 if (diff < 0) { /* shrinking the area */
2104 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2105 Copy(MARK, tmparyval, newlen, SV*);
2108 MARK = ORIGMARK + 1;
2109 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2110 MEXTEND(MARK, length);
2111 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2113 for (i = length, dst = MARK; i; i--)
2114 sv_2mortal(*dst++); /* free them eventualy */
2119 *MARK = AvARRAY(ary)[offset+length-1];
2122 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2123 SvREFCNT_dec(*dst++); /* free them now */
2126 AvFILL(ary) += diff;
2128 /* pull up or down? */
2130 if (offset < after) { /* easier to pull up */
2131 if (offset) { /* esp. if nothing to pull */
2132 src = &AvARRAY(ary)[offset-1];
2133 dst = src - diff; /* diff is negative */
2134 for (i = offset; i > 0; i--) /* can't trust Copy */
2138 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2142 if (after) { /* anything to pull down? */
2143 src = AvARRAY(ary) + offset + length;
2144 dst = src + diff; /* diff is negative */
2145 Move(src, dst, after, SV*);
2147 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2148 /* avoid later double free */
2152 dst[--i] = &sv_undef;
2155 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2157 *dst = NEWSV(46, 0);
2158 sv_setsv(*dst++, *src++);
2160 Safefree(tmparyval);
2163 else { /* no, expanding (or same) */
2165 New(452, tmparyval, length, SV*); /* so remember deletion */
2166 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2169 if (diff > 0) { /* expanding */
2171 /* push up or down? */
2173 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2177 Move(src, dst, offset, SV*);
2179 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2181 AvFILL(ary) += diff;
2184 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2185 av_extend(ary, AvFILL(ary) + diff);
2186 AvFILL(ary) += diff;
2189 dst = AvARRAY(ary) + AvFILL(ary);
2191 for (i = after; i; i--) {
2198 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2199 *dst = NEWSV(46, 0);
2200 sv_setsv(*dst++, *src++);
2202 MARK = ORIGMARK + 1;
2203 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2205 Copy(tmparyval, MARK, length, SV*);
2207 for (i = length, dst = MARK; i; i--)
2208 sv_2mortal(*dst++); /* free them eventualy */
2210 Safefree(tmparyval);
2214 else if (length--) {
2215 *MARK = tmparyval[length];
2218 while (length-- > 0)
2219 SvREFCNT_dec(tmparyval[length]);
2221 Safefree(tmparyval);
2232 dSP; dMARK; dORIGMARK; dTARGET;
2233 register AV *ary = (AV*)*++MARK;
2234 register SV *sv = &sv_undef;
2236 for (++MARK; MARK <= SP; MARK++) {
2239 sv_setsv(sv, *MARK);
2243 PUSHi( AvFILL(ary) + 1 );
2251 SV *sv = av_pop(av);
2252 if (sv != &sv_undef && AvREAL(av))
2253 (void)sv_2mortal(sv);
2262 SV *sv = av_shift(av);
2266 if (sv != &sv_undef && AvREAL(av))
2267 (void)sv_2mortal(sv);
2274 dSP; dMARK; dORIGMARK; dTARGET;
2275 register AV *ary = (AV*)*++MARK;
2279 av_unshift(ary, SP - MARK);
2282 sv_setsv(sv, *++MARK);
2283 (void)av_store(ary, i++, sv);
2287 PUSHi( AvFILL(ary) + 1 );
2297 if (GIMME == G_ARRAY) {
2308 register char *down;
2314 do_join(TARG, &sv_no, MARK, SP);
2316 sv_setsv(TARG, *SP);
2317 up = SvPV_force(TARG, len);
2319 down = SvPVX(TARG) + len - 1;
2325 (void)SvPOK_only(TARG);
2333 /* Explosives and implosives. */
2342 register char *pat = SvPV(left, llen);
2343 register char *s = SvPV(right, rlen);
2344 char *strend = s + rlen;
2346 register char *patend = pat + llen;
2351 /* These must not be in registers: */
2362 unsigned Quad_t auquad;
2368 register U32 culong;
2370 static char* bitcount = 0;
2372 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2374 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2375 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2377 while (isDIGIT(*patend) || *patend == '*')
2383 while (pat < patend) {
2388 else if (*pat == '*') {
2389 len = strend - strbeg; /* long enough */
2392 else if (isDIGIT(*pat)) {
2394 while (isDIGIT(*pat))
2395 len = (len * 10) + (*pat++ - '0');
2398 len = (datumtype != '@');
2403 if (len == 1 && pat[-1] != '1')
2412 if (len > strend - strbeg)
2413 DIE("@ outside of string");
2417 if (len > s - strbeg)
2418 DIE("X outside of string");
2422 if (len > strend - s)
2423 DIE("x outside of string");
2428 if (len > strend - s)
2431 goto uchar_checksum;
2432 sv = NEWSV(35, len);
2433 sv_setpvn(sv, s, len);
2435 if (datumtype == 'A') {
2436 aptr = s; /* borrow register */
2437 s = SvPVX(sv) + len - 1;
2438 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2441 SvCUR_set(sv, s - SvPVX(sv));
2442 s = aptr; /* unborrow register */
2444 XPUSHs(sv_2mortal(sv));
2448 if (pat[-1] == '*' || len > (strend - s) * 8)
2449 len = (strend - s) * 8;
2452 Newz(601, bitcount, 256, char);
2453 for (bits = 1; bits < 256; bits++) {
2454 if (bits & 1) bitcount[bits]++;
2455 if (bits & 2) bitcount[bits]++;
2456 if (bits & 4) bitcount[bits]++;
2457 if (bits & 8) bitcount[bits]++;
2458 if (bits & 16) bitcount[bits]++;
2459 if (bits & 32) bitcount[bits]++;
2460 if (bits & 64) bitcount[bits]++;
2461 if (bits & 128) bitcount[bits]++;
2465 culong += bitcount[*(unsigned char*)s++];
2470 if (datumtype == 'b') {
2472 if (bits & 1) culong++;
2478 if (bits & 128) culong++;
2485 sv = NEWSV(35, len + 1);
2488 aptr = pat; /* borrow register */
2490 if (datumtype == 'b') {
2492 for (len = 0; len < aint; len++) {
2493 if (len & 7) /*SUPPRESS 595*/
2497 *pat++ = '0' + (bits & 1);
2502 for (len = 0; len < aint; len++) {
2507 *pat++ = '0' + ((bits & 128) != 0);
2511 pat = aptr; /* unborrow register */
2512 XPUSHs(sv_2mortal(sv));
2516 if (pat[-1] == '*' || len > (strend - s) * 2)
2517 len = (strend - s) * 2;
2518 sv = NEWSV(35, len + 1);
2521 aptr = pat; /* borrow register */
2523 if (datumtype == 'h') {
2525 for (len = 0; len < aint; len++) {
2530 *pat++ = hexdigit[bits & 15];
2535 for (len = 0; len < aint; len++) {
2540 *pat++ = hexdigit[(bits >> 4) & 15];
2544 pat = aptr; /* unborrow register */
2545 XPUSHs(sv_2mortal(sv));
2548 if (len > strend - s)
2553 if (aint >= 128) /* fake up signed chars */
2562 if (aint >= 128) /* fake up signed chars */
2565 sv_setiv(sv, (I32)aint);
2566 PUSHs(sv_2mortal(sv));
2571 if (len > strend - s)
2585 sv_setiv(sv, (I32)auint);
2586 PUSHs(sv_2mortal(sv));
2591 along = (strend - s) / sizeof(I16);
2596 Copy(s, &ashort, 1, I16);
2604 Copy(s, &ashort, 1, I16);
2607 sv_setiv(sv, (I32)ashort);
2608 PUSHs(sv_2mortal(sv));
2615 along = (strend - s) / sizeof(U16);
2620 Copy(s, &aushort, 1, U16);
2623 if (datumtype == 'n')
2624 aushort = ntohs(aushort);
2627 if (datumtype == 'v')
2628 aushort = vtohs(aushort);
2636 Copy(s, &aushort, 1, U16);
2640 if (datumtype == 'n')
2641 aushort = ntohs(aushort);
2644 if (datumtype == 'v')
2645 aushort = vtohs(aushort);
2647 sv_setiv(sv, (I32)aushort);
2648 PUSHs(sv_2mortal(sv));
2653 along = (strend - s) / sizeof(int);
2658 Copy(s, &aint, 1, int);
2661 cdouble += (double)aint;
2669 Copy(s, &aint, 1, int);
2672 sv_setiv(sv, (I32)aint);
2673 PUSHs(sv_2mortal(sv));
2678 along = (strend - s) / sizeof(unsigned int);
2683 Copy(s, &auint, 1, unsigned int);
2684 s += sizeof(unsigned int);
2686 cdouble += (double)auint;
2694 Copy(s, &auint, 1, unsigned int);
2695 s += sizeof(unsigned int);
2697 if (auint <= I32_MAX)
2698 sv_setiv(sv, (I32)auint);
2700 sv_setnv(sv, (double)auint);
2701 PUSHs(sv_2mortal(sv));
2706 along = (strend - s) / sizeof(I32);
2711 Copy(s, &along, 1, I32);
2714 cdouble += (double)along;
2722 Copy(s, &along, 1, I32);
2725 sv_setiv(sv, (I32)along);
2726 PUSHs(sv_2mortal(sv));
2733 along = (strend - s) / sizeof(U32);
2738 Copy(s, &aulong, 1, U32);
2741 if (datumtype == 'N')
2742 aulong = ntohl(aulong);
2745 if (datumtype == 'V')
2746 aulong = vtohl(aulong);
2749 cdouble += (double)aulong;
2757 Copy(s, &aulong, 1, U32);
2761 if (datumtype == 'N')
2762 aulong = ntohl(aulong);
2765 if (datumtype == 'V')
2766 aulong = vtohl(aulong);
2768 sv_setnv(sv, (double)aulong);
2769 PUSHs(sv_2mortal(sv));
2774 along = (strend - s) / sizeof(char*);
2779 if (sizeof(char*) > strend - s)
2782 Copy(s, &aptr, 1, char*);
2788 PUSHs(sv_2mortal(sv));
2792 along = (strend - s) / sizeof(char);
2803 DIE("Unterminated compressed integer");
2808 auint = (auint << 7) | (*s & 0x7f);
2811 sv_setiv(sv, (I32) auint);
2812 PUSHs(sv_2mortal(sv));
2816 } else if (++bytes >= sizeof(auint)) { /* promote to double */
2820 adouble = (adouble * 128) + (*(++s) & 0x7f);
2822 DIE("Unterminated compressed integer");
2826 sv_setnv(sv, adouble);
2827 PUSHs(sv_2mortal(sv));
2838 if (sizeof(char*) > strend - s)
2841 Copy(s, &aptr, 1, char*);
2846 sv_setpvn(sv, aptr, len);
2847 PUSHs(sv_2mortal(sv));
2853 if (s + sizeof(Quad_t) > strend)
2856 Copy(s, &aquad, 1, Quad_t);
2857 s += sizeof(Quad_t);
2860 sv_setiv(sv, (IV)aquad);
2861 PUSHs(sv_2mortal(sv));
2867 if (s + sizeof(unsigned Quad_t) > strend)
2870 Copy(s, &auquad, 1, unsigned Quad_t);
2871 s += sizeof(unsigned Quad_t);
2874 sv_setiv(sv, (IV)auquad);
2875 PUSHs(sv_2mortal(sv));
2879 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2882 along = (strend - s) / sizeof(float);
2887 Copy(s, &afloat, 1, float);
2895 Copy(s, &afloat, 1, float);
2898 sv_setnv(sv, (double)afloat);
2899 PUSHs(sv_2mortal(sv));
2905 along = (strend - s) / sizeof(double);
2910 Copy(s, &adouble, 1, double);
2911 s += sizeof(double);
2918 Copy(s, &adouble, 1, double);
2919 s += sizeof(double);
2921 sv_setnv(sv, (double)adouble);
2922 PUSHs(sv_2mortal(sv));
2927 along = (strend - s) * 3 / 4;
2928 sv = NEWSV(42, along);
2931 while (s < strend && *s > ' ' && *s < 'a') {
2936 len = (*s++ - ' ') & 077;
2938 if (s < strend && *s >= ' ')
2939 a = (*s++ - ' ') & 077;
2942 if (s < strend && *s >= ' ')
2943 b = (*s++ - ' ') & 077;
2946 if (s < strend && *s >= ' ')
2947 c = (*s++ - ' ') & 077;
2950 if (s < strend && *s >= ' ')
2951 d = (*s++ - ' ') & 077;
2954 hunk[0] = a << 2 | b >> 4;
2955 hunk[1] = b << 4 | c >> 2;
2956 hunk[2] = c << 6 | d;
2957 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2962 else if (s[1] == '\n') /* possible checksum byte */
2965 XPUSHs(sv_2mortal(sv));
2970 if (strchr("fFdD", datumtype) ||
2971 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
2975 while (checksum >= 16) {
2979 while (checksum >= 4) {
2985 along = (1 << checksum) - 1;
2986 while (cdouble < 0.0)
2988 cdouble = modf(cdouble / adouble, &trouble) * adouble;
2989 sv_setnv(sv, cdouble);
2992 if (checksum < 32) {
2993 along = (1 << checksum) - 1;
2994 culong &= (U32)along;
2996 sv_setnv(sv, (double)culong);
2998 XPUSHs(sv_2mortal(sv));
3006 doencodes(sv, s, len)
3014 sv_catpvn(sv, hunk, 1);
3017 hunk[0] = ' ' + (077 & (*s >> 2));
3018 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3019 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3020 hunk[3] = ' ' + (077 & (s[2] & 077));
3021 sv_catpvn(sv, hunk, 4);
3025 for (s = SvPVX(sv); *s; s++) {
3029 sv_catpvn(sv, "\n", 1);
3034 dSP; dMARK; dORIGMARK; dTARGET;
3035 register SV *cat = TARG;
3038 register char *pat = SvPVx(*++MARK, fromlen);
3039 register char *patend = pat + fromlen;
3044 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3045 static char *space10 = " ";
3047 /* These must not be in registers: */
3056 unsigned Quad_t auquad;
3064 sv_setpvn(cat, "", 0);
3065 while (pat < patend) {
3066 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3069 len = strchr("@Xxu", datumtype) ? 0 : items;
3072 else if (isDIGIT(*pat)) {
3074 while (isDIGIT(*pat))
3075 len = (len * 10) + (*pat++ - '0');
3083 DIE("%% may only be used in unpack");
3094 if (SvCUR(cat) < len)
3095 DIE("X outside of string");
3102 sv_catpvn(cat, null10, 10);
3105 sv_catpvn(cat, null10, len);
3110 aptr = SvPV(fromstr, fromlen);
3114 sv_catpvn(cat, aptr, len);
3116 sv_catpvn(cat, aptr, fromlen);
3118 if (datumtype == 'A') {
3120 sv_catpvn(cat, space10, 10);
3123 sv_catpvn(cat, space10, len);
3127 sv_catpvn(cat, null10, 10);
3130 sv_catpvn(cat, null10, len);
3137 char *savepat = pat;
3142 aptr = SvPV(fromstr, fromlen);
3147 SvCUR(cat) += (len+7)/8;
3148 SvGROW(cat, SvCUR(cat) + 1);
3149 aptr = SvPVX(cat) + aint;
3154 if (datumtype == 'B') {
3155 for (len = 0; len++ < aint;) {
3156 items |= *pat++ & 1;
3160 *aptr++ = items & 0xff;
3166 for (len = 0; len++ < aint;) {
3172 *aptr++ = items & 0xff;
3178 if (datumtype == 'B')
3179 items <<= 7 - (aint & 7);
3181 items >>= 7 - (aint & 7);
3182 *aptr++ = items & 0xff;
3184 pat = SvPVX(cat) + SvCUR(cat);
3195 char *savepat = pat;
3200 aptr = SvPV(fromstr, fromlen);
3205 SvCUR(cat) += (len+1)/2;
3206 SvGROW(cat, SvCUR(cat) + 1);
3207 aptr = SvPVX(cat) + aint;
3212 if (datumtype == 'H') {
3213 for (len = 0; len++ < aint;) {
3215 items |= ((*pat++ & 15) + 9) & 15;
3217 items |= *pat++ & 15;
3221 *aptr++ = items & 0xff;
3227 for (len = 0; len++ < aint;) {
3229 items |= (((*pat++ & 15) + 9) & 15) << 4;
3231 items |= (*pat++ & 15) << 4;
3235 *aptr++ = items & 0xff;
3241 *aptr++ = items & 0xff;
3242 pat = SvPVX(cat) + SvCUR(cat);
3254 aint = SvIV(fromstr);
3256 sv_catpvn(cat, &achar, sizeof(char));
3259 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3264 afloat = (float)SvNV(fromstr);
3265 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3272 adouble = (double)SvNV(fromstr);
3273 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3279 ashort = (I16)SvIV(fromstr);
3281 ashort = htons(ashort);
3283 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3289 ashort = (I16)SvIV(fromstr);
3291 ashort = htovs(ashort);
3293 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3300 ashort = (I16)SvIV(fromstr);
3301 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3307 auint = U_I(SvNV(fromstr));
3308 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3314 adouble = floor((double)SvNV(fromstr));
3316 if (adouble < 268435456) { /* we can use integers */
3317 unsigned char buf[4]; /* buffer for compressed int */
3318 unsigned char *in = buf + 3;
3319 auint = U_I(adouble);
3321 *(in--) = (unsigned char) ((auint & 0x7f) | 0x80);
3324 buf[3] &= 0x7f; /* clear continue bit */
3325 sv_catpvn(cat, (char*) in+1, buf+3-in);
3327 unsigned char buf[sizeof(double)*2]; /* buffer for compressed int */
3328 I8 msize = sizeof(double)*2; /* 8/7 would be enough */
3329 unsigned char *in = buf + msize -1;
3331 croak("Cannot compress negative numbers");
3334 double next = adouble/128;
3335 *in = (unsigned char) (adouble - floor(next)*128);
3336 *in |= 0x80; /* set continue bit */
3337 if (--in < buf) { /* this cannot happen ;-) */
3338 croak ("Cannot compress integer");
3341 } while (floor(adouble)>0); /* floor() not necessary? */
3342 buf[msize-1] &= 0x7f; /* clear continue bit */
3343 sv_catpvn(cat, (char*) in+1, buf+msize-in-1);
3350 aint = SvIV(fromstr);
3351 sv_catpvn(cat, (char*)&aint, sizeof(int));
3357 aulong = U_L(SvNV(fromstr));
3359 aulong = htonl(aulong);
3361 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3367 aulong = U_L(SvNV(fromstr));
3369 aulong = htovl(aulong);
3371 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3377 aulong = U_L(SvNV(fromstr));
3378 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3384 along = SvIV(fromstr);
3385 sv_catpvn(cat, (char*)&along, sizeof(I32));
3392 auquad = (unsigned Quad_t)SvIV(fromstr);
3393 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3399 aquad = (Quad_t)SvIV(fromstr);
3400 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3403 #endif /* HAS_QUAD */
3405 len = 1; /* assume SV is correct length */
3410 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3411 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3416 aptr = SvPV(fromstr, fromlen);
3417 SvGROW(cat, fromlen * 4 / 3);
3422 while (fromlen > 0) {
3429 doencodes(cat, aptr, todo);
3447 register I32 limit = POPi; /* note, negative is forever */
3450 register char *s = SvPV(sv, len);
3451 char *strend = s + len;
3452 register PMOP *pm = (PMOP*)POPs;
3456 I32 maxiters = (strend - s) + 10;
3459 I32 origlimit = limit;
3462 AV *oldstack = curstack;
3463 register REGEXP *rx = pm->op_pmregexp;
3465 I32 oldsave = savestack_ix;
3468 DIE("panic: do_split");
3469 if (pm->op_pmreplroot)
3470 ary = GvAVn((GV*)pm->op_pmreplroot);
3471 else if (gimme != G_ARRAY)
3475 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3479 for (i = AvFILL(ary); i >= 0; i--)
3480 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3484 /* temporarily switch stacks */
3485 SWITCHSTACK(curstack, ary);
3487 base = SP - stack_base;
3489 if (pm->op_pmflags & PMf_SKIPWHITE) {
3493 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3495 multiline = pm->op_pmflags & PMf_MULTILINE;
3499 limit = maxiters + 2;
3500 if (pm->op_pmflags & PMf_WHITE) {
3503 for (m = s; m < strend && !isSPACE(*m); m++) ;
3506 dstr = NEWSV(30, m-s);
3507 sv_setpvn(dstr, s, m-s);
3512 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3515 else if (strEQ("^", rx->precomp)) {
3518 for (m = s; m < strend && *m != '\n'; m++) ;
3522 dstr = NEWSV(30, m-s);
3523 sv_setpvn(dstr, s, m-s);
3530 else if (pm->op_pmshort) {
3531 i = SvCUR(pm->op_pmshort);
3533 I32 fold = (pm->op_pmflags & PMf_FOLD);
3534 i = *SvPVX(pm->op_pmshort);
3535 if (fold && isUPPER(i))
3540 m < strend && *m != i &&
3541 (!isUPPER(*m) || toLOWER(*m) != i);
3542 m++) /*SUPPRESS 530*/
3545 else /*SUPPRESS 530*/
3546 for (m = s; m < strend && *m != i; m++) ;
3549 dstr = NEWSV(30, m-s);
3550 sv_setpvn(dstr, s, m-s);
3559 while (s < strend && --limit &&
3560 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3564 dstr = NEWSV(31, m-s);
3565 sv_setpvn(dstr, s, m-s);
3574 maxiters += (strend - s) * rx->nparens;
3575 while (s < strend && --limit &&
3576 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3578 && rx->subbase != orig) {
3583 strend = s + (strend - m);
3586 dstr = NEWSV(32, m-s);
3587 sv_setpvn(dstr, s, m-s);
3592 for (i = 1; i <= rx->nparens; i++) {
3596 dstr = NEWSV(33, m-s);
3597 sv_setpvn(dstr, s, m-s);
3600 dstr = NEWSV(33, 0);
3609 LEAVE_SCOPE(oldsave);
3610 iters = (SP - stack_base) - base;
3611 if (iters > maxiters)
3614 /* keep field after final delim? */
3615 if (s < strend || (iters && origlimit)) {
3616 dstr = NEWSV(34, strend-s);
3617 sv_setpvn(dstr, s, strend-s);
3623 else if (!origlimit) {
3624 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3628 SWITCHSTACK(ary, oldstack);
3629 if (gimme == G_ARRAY) {
3631 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3637 if (gimme == G_ARRAY)
3640 if (iters || !pm->op_pmreplroot) {