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);
578 if (SvREADONLY(TOPs))
581 if (SvIVX(TOPs) == IV_MIN) {
582 sv_setnv(TOPs, (double)SvIVX(TOPs) - 1.0);
586 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
598 if (SvREADONLY(TOPs))
600 sv_setsv(TARG, TOPs);
602 if (SvIVX(TOPs) == IV_MAX) {
603 sv_setnv(TOPs, (double)SvIVX(TOPs) + 1.0);
607 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
624 sv_setsv(TARG, TOPs);
626 if (SvIVX(TOPs) == IV_MIN) {
627 sv_setnv(TOPs, (double)SvIVX(TOPs) - 1.0);
631 SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK);
641 /* Ordinary operators. */
645 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
648 SETn( pow( left, right) );
655 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
658 SETn( left * right );
665 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
669 DIE("Illegal division by zero");
671 /* insure that 20./5. == 4. */
676 if ((double)I_32(x) == x &&
677 (double)I_32(value) == value &&
678 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
685 value = POPn / value;
694 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
701 DIE("Illegal modulus zero");
704 value = (UV)value % uval;
706 value = (uval - ((UV)(-value - 1) % uval)) - 1;
715 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
717 register I32 count = POPi;
718 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
720 I32 items = SP - MARK;
732 repeatcpy((char*)(MARK + items), (char*)MARK,
733 items * sizeof(SV*), count - 1);
739 else { /* Note: mark already snarfed by pp_list */
744 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
745 if (SvREADONLY(tmpstr) && curcop != &compiling)
746 DIE("Can't x= to readonly value");
750 SvSetSV(TARG, tmpstr);
751 SvPV_force(TARG, len);
753 SvGROW(TARG, (count * len) + 1);
755 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
756 SvCUR(TARG) *= count;
758 (void)SvPOK_only(TARG);
761 sv_setsv(TARG, &sv_no);
770 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
773 SETn( left - right );
780 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
783 SETi( left << right );
790 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
793 SETi( left >> right );
800 dSP; tryAMAGICbinSET(lt,0);
803 SETs((TOPn < value) ? &sv_yes : &sv_no);
810 dSP; tryAMAGICbinSET(gt,0);
813 SETs((TOPn > value) ? &sv_yes : &sv_no);
820 dSP; tryAMAGICbinSET(le,0);
823 SETs((TOPn <= value) ? &sv_yes : &sv_no);
830 dSP; tryAMAGICbinSET(ge,0);
833 SETs((TOPn >= value) ? &sv_yes : &sv_no);
840 dSP; tryAMAGICbinSET(ne,0);
843 SETs((TOPn != value) ? &sv_yes : &sv_no);
850 dSP; dTARGET; tryAMAGICbin(ncmp,0);
857 else if (left < right)
868 dSP; tryAMAGICbinSET(slt,0);
871 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
878 dSP; tryAMAGICbinSET(sgt,0);
881 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
888 dSP; tryAMAGICbinSET(sle,0);
891 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
898 dSP; tryAMAGICbinSET(sge,0);
901 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
908 dSP; tryAMAGICbinSET(sne,0);
911 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
918 dSP; dTARGET; tryAMAGICbin(scmp,0);
921 SETi( sv_cmp(left, right) );
927 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
930 if (SvNIOKp(left) || SvNIOKp(right)) {
931 unsigned long value = U_L(SvNV(left));
932 value = value & U_L(SvNV(right));
933 if ((IV)value == value)
939 do_vop(op->op_type, TARG, left, right);
948 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
951 if (SvNIOKp(left) || SvNIOKp(right)) {
952 unsigned long value = U_L(SvNV(left));
953 value = value ^ U_L(SvNV(right));
954 if ((IV)value == value)
960 do_vop(op->op_type, TARG, left, right);
969 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
972 if (SvNIOKp(left) || SvNIOKp(right)) {
973 unsigned long value = U_L(SvNV(left));
974 value = value | U_L(SvNV(right));
975 if ((IV)value == value)
981 do_vop(op->op_type, TARG, left, right);
990 dSP; dTARGET; tryAMAGICun(neg);
997 else if (SvPOKp(sv)) {
999 char *s = SvPV(sv, len);
1000 if (isALPHA(*s) || *s == '_') {
1001 sv_setpvn(TARG, "-", 1);
1004 else if (*s == '+' || *s == '-') {
1006 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1009 sv_setnv(TARG, -SvNV(sv));
1021 dSP; tryAMAGICunSET(not);
1022 #endif /* OVERLOAD */
1023 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1029 dSP; dTARGET; tryAMAGICun(compl);
1035 UV value = ~SvIV(sv);
1036 if ((IV)value == value)
1039 SETn((double)value);
1042 register char *tmps;
1043 register long *tmpl;
1047 tmps = SvPV_force(TARG, len);
1050 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1053 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1057 for ( ; anum > 0; anum--, tmps++)
1066 /* integer versions of some of the above */
1070 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1073 SETi( left * right );
1080 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1084 DIE("Illegal division by zero");
1085 value = POPi / value;
1093 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1096 SETi( left % right );
1103 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1106 SETi( left + right );
1113 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1116 SETi( left - right );
1123 dSP; tryAMAGICbinSET(lt,0);
1126 SETs((left < right) ? &sv_yes : &sv_no);
1133 dSP; tryAMAGICbinSET(gt,0);
1136 SETs((left > right) ? &sv_yes : &sv_no);
1143 dSP; tryAMAGICbinSET(le,0);
1146 SETs((left <= right) ? &sv_yes : &sv_no);
1153 dSP; tryAMAGICbinSET(ge,0);
1156 SETs((left >= right) ? &sv_yes : &sv_no);
1163 dSP; tryAMAGICbinSET(eq,0);
1166 SETs((left == right) ? &sv_yes : &sv_no);
1173 dSP; tryAMAGICbinSET(ne,0);
1176 SETs((left != right) ? &sv_yes : &sv_no);
1183 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1190 else if (left < right)
1201 dSP; dTARGET; tryAMAGICun(neg);
1206 /* High falutin' math. */
1210 dSP; dTARGET; tryAMAGICbin(atan2,0);
1213 SETn(atan2(left, right));
1220 dSP; dTARGET; tryAMAGICun(sin);
1232 dSP; dTARGET; tryAMAGICun(cos);
1253 value = rand() * value / 2147483648.0;
1256 value = rand() * value / 65536.0;
1259 value = rand() * value / 32768.0;
1261 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1276 # include <starlet.h>
1277 unsigned int when[2];
1278 _ckvmssts(sys$gettim(when));
1279 anum = when[0] ^ when[1];
1281 # if defined(I_SYS_TIME) && !defined(PLAN9)
1282 struct timeval when;
1283 gettimeofday(&when,(struct timezone *) 0);
1284 anum = when.tv_sec ^ when.tv_usec;
1291 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1292 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1293 /* What is a good hashing algorithm here? */
1294 anum ^= ( ( 269 * (U32)getpid())
1295 ^ (26107 * (U32)&when)
1296 ^ (73819 * (U32)stack_sp));
1308 dSP; dTARGET; tryAMAGICun(exp);
1320 dSP; dTARGET; tryAMAGICun(log);
1325 DIE("Can't take log of %g", value);
1334 dSP; dTARGET; tryAMAGICun(sqrt);
1339 DIE("Can't take sqrt of %g", value);
1340 value = sqrt(value);
1352 (void)modf(value, &value);
1354 (void)modf(-value, &value);
1363 dSP; dTARGET; tryAMAGICun(abs);
1380 unsigned long value;
1384 value = scan_hex(tmps, 99, &argtype);
1395 unsigned long value;
1400 while (*tmps && isSPACE(*tmps))
1405 value = scan_hex(++tmps, 99, &argtype);
1407 value = scan_oct(tmps, 99, &argtype);
1420 SETi( sv_len(TOPs) );
1432 I32 lvalue = op->op_flags & OPf_MOD;
1434 I32 arybase = curcop->cop_arybase;
1438 pos = POPi - arybase;
1440 tmps = SvPV(sv, curlen);
1442 pos += curlen + arybase;
1443 if (pos < 0 || pos > curlen) {
1444 if (dowarn || lvalue)
1445 warn("substr outside of string");
1452 len += curlen - pos;
1457 rem = curlen - pos; /* rem=how many bytes left*/
1460 sv_setpvn(TARG, tmps, rem);
1461 if (lvalue) { /* it's an lvalue! */
1462 if (!SvGMAGICAL(sv)) {
1466 warn("Attempt to use reference as lvalue in substr");
1468 if (SvOK(sv)) /* is it defined ? */
1469 (void)SvPOK_only(sv);
1471 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1473 if (SvTYPE(TARG) < SVt_PVLV) {
1474 sv_upgrade(TARG, SVt_PVLV);
1475 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1480 LvTARGOFF(TARG) = pos;
1481 LvTARGLEN(TARG) = rem;
1484 PUSHs(TARG); /* avoid SvSETMAGIC here */
1491 register I32 size = POPi;
1492 register I32 offset = POPi;
1493 register SV *src = POPs;
1494 I32 lvalue = op->op_flags & OPf_MOD;
1496 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1497 unsigned long retnum;
1500 offset *= size; /* turn into bit offset */
1501 len = (offset + size + 7) / 8;
1502 if (offset < 0 || size < 1)
1505 if (lvalue) { /* it's an lvalue! */
1506 if (SvTYPE(TARG) < SVt_PVLV) {
1507 sv_upgrade(TARG, SVt_PVLV);
1508 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1513 LvTARGOFF(TARG) = offset;
1514 LvTARGLEN(TARG) = size;
1522 if (offset >= srclen)
1525 retnum = (unsigned long) s[offset] << 8;
1527 else if (size == 32) {
1528 if (offset >= srclen)
1530 else if (offset + 1 >= srclen)
1531 retnum = (unsigned long) s[offset] << 24;
1532 else if (offset + 2 >= srclen)
1533 retnum = ((unsigned long) s[offset] << 24) +
1534 ((unsigned long) s[offset + 1] << 16);
1536 retnum = ((unsigned long) s[offset] << 24) +
1537 ((unsigned long) s[offset + 1] << 16) +
1538 (s[offset + 2] << 8);
1543 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1548 else if (size == 16)
1549 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1550 else if (size == 32)
1551 retnum = ((unsigned long) s[offset] << 24) +
1552 ((unsigned long) s[offset + 1] << 16) +
1553 (s[offset + 2] << 8) + s[offset+3];
1557 sv_setiv(TARG, (I32)retnum);
1572 I32 arybase = curcop->cop_arybase;
1577 offset = POPi - arybase;
1580 tmps = SvPV(big, biglen);
1583 else if (offset > biglen)
1585 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1586 (unsigned char*)tmps + biglen, little)))
1587 retval = -1 + arybase;
1589 retval = tmps2 - tmps + arybase;
1606 I32 arybase = curcop->cop_arybase;
1612 tmps2 = SvPV(little, llen);
1613 tmps = SvPV(big, blen);
1617 offset = SvIV(offstr) - arybase + llen;
1620 else if (offset > blen)
1622 if (!(tmps2 = rninstr(tmps, tmps + offset,
1623 tmps2, tmps2 + llen)))
1624 retval = -1 + arybase;
1626 retval = tmps2 - tmps + arybase;
1633 dSP; dMARK; dORIGMARK; dTARGET;
1634 do_sprintf(TARG, SP-MARK, MARK+1);
1648 value = (I32) (*tmps & 255);
1653 value = (I32) (anum & 255);
1664 (void)SvUPGRADE(TARG,SVt_PV);
1670 (void)SvPOK_only(TARG);
1677 dSP; dTARGET; dPOPTOPssrl;
1679 char *tmps = SvPV(left, na);
1681 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1683 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1687 "The crypt() function is unimplemented due to excessive paranoia.");
1699 if (!SvPADTMP(sv)) {
1705 s = SvPV_force(sv, na);
1718 if (!SvPADTMP(sv)) {
1724 s = SvPV_force(sv, na);
1737 register char *send;
1740 if (!SvPADTMP(sv)) {
1746 s = SvPV_force(sv, len);
1761 register char *send;
1764 if (!SvPADTMP(sv)) {
1770 s = SvPV_force(sv, len);
1785 register char *s = SvPV(sv,len);
1789 (void)SvUPGRADE(TARG, SVt_PV);
1790 SvGROW(TARG, (len * 2) + 1);
1798 SvCUR_set(TARG, d - SvPVX(TARG));
1799 (void)SvPOK_only(TARG);
1802 sv_setpvn(TARG, s, len);
1811 dSP; dMARK; dORIGMARK;
1813 register AV* av = (AV*)POPs;
1814 register I32 lval = op->op_flags & OPf_MOD;
1815 I32 arybase = curcop->cop_arybase;
1818 if (SvTYPE(av) == SVt_PVAV) {
1819 if (lval && op->op_private & OPpLVAL_INTRO) {
1821 for (svp = mark + 1; svp <= sp; svp++) {
1826 if (max > AvMAX(av))
1829 while (++MARK <= SP) {
1830 elem = SvIVx(*MARK);
1834 svp = av_fetch(av, elem, lval);
1836 if (!svp || *svp == &sv_undef)
1837 DIE(no_aelem, elem);
1838 if (op->op_private & OPpLVAL_INTRO)
1841 *MARK = svp ? *svp : &sv_undef;
1844 if (GIMME != G_ARRAY) {
1852 /* Associative arrays. */
1857 HV *hash = (HV*)POPs;
1861 entry = hv_iternext(hash); /* might clobber stack_sp */
1866 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1867 if (GIMME == G_ARRAY) {
1869 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1874 else if (GIMME == G_SCALAR)
1897 if (SvTYPE(hv) != SVt_PVHV) {
1898 DIE("Not a HASH reference");
1900 sv = hv_delete_ent(hv, tmpsv,
1901 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1914 if (SvTYPE(hv) != SVt_PVHV) {
1915 DIE("Not a HASH reference");
1917 if (hv_exists_ent(hv, tmpsv, 0))
1924 dSP; dMARK; dORIGMARK;
1926 register HV *hv = (HV*)POPs;
1927 register I32 lval = op->op_flags & OPf_MOD;
1929 if (SvTYPE(hv) == SVt_PVHV) {
1930 while (++MARK <= SP) {
1933 he = hv_fetch_ent(hv, keysv, lval, 0);
1935 if (!he || HeVAL(he) == &sv_undef)
1936 DIE(no_helem, SvPV(keysv, na));
1937 if (op->op_private & OPpLVAL_INTRO)
1938 save_svref(&HeVAL(he));
1940 *MARK = he ? HeVAL(he) : &sv_undef;
1943 if (GIMME != G_ARRAY) {
1951 /* List operators. */
1956 if (GIMME != G_ARRAY) {
1958 *MARK = *SP; /* unwanted list, return last item */
1969 SV **lastrelem = stack_sp;
1970 SV **lastlelem = stack_base + POPMARK;
1971 SV **firstlelem = stack_base + POPMARK + 1;
1972 register SV **firstrelem = lastlelem + 1;
1973 I32 arybase = curcop->cop_arybase;
1974 I32 lval = op->op_flags & OPf_MOD;
1975 I32 is_something_there = lval;
1977 register I32 max = lastrelem - lastlelem;
1978 register SV **lelem;
1981 if (GIMME != G_ARRAY) {
1982 ix = SvIVx(*lastlelem);
1987 if (ix < 0 || ix >= max)
1988 *firstlelem = &sv_undef;
1990 *firstlelem = firstrelem[ix];
1996 SP = firstlelem - 1;
2000 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2006 else if (!(*lelem = firstrelem[ix]))
2011 if (ix >= max || !(*lelem = firstrelem[ix]))
2014 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2015 is_something_there = TRUE;
2017 if (is_something_there)
2020 SP = firstlelem - 1;
2027 I32 items = SP - MARK;
2029 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2035 dSP; dMARK; dORIGMARK;
2037 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2041 SV *val = NEWSV(46, 0);
2043 sv_setsv(val, *++MARK);
2045 warn("Odd number of elements in hash list");
2046 (void)hv_store_ent(hv,key,val,0);
2055 dSP; dMARK; dORIGMARK;
2056 register AV *ary = (AV*)*++MARK;
2060 register I32 offset;
2061 register I32 length;
2070 offset = SvIVx(*MARK);
2072 offset += AvFILL(ary) + 1;
2074 offset -= curcop->cop_arybase;
2076 length = SvIVx(*MARK++);
2081 length = AvMAX(ary) + 1; /* close enough to infinity */
2085 length = AvMAX(ary) + 1;
2093 if (offset > AvFILL(ary) + 1)
2094 offset = AvFILL(ary) + 1;
2095 after = AvFILL(ary) + 1 - (offset + length);
2096 if (after < 0) { /* not that much array */
2097 length += after; /* offset+length now in array */
2103 /* At this point, MARK .. SP-1 is our new LIST */
2106 diff = newlen - length;
2108 if (diff < 0) { /* shrinking the area */
2110 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2111 Copy(MARK, tmparyval, newlen, SV*);
2114 MARK = ORIGMARK + 1;
2115 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2116 MEXTEND(MARK, length);
2117 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2119 for (i = length, dst = MARK; i; i--)
2120 sv_2mortal(*dst++); /* free them eventualy */
2125 *MARK = AvARRAY(ary)[offset+length-1];
2128 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2129 SvREFCNT_dec(*dst++); /* free them now */
2132 AvFILL(ary) += diff;
2134 /* pull up or down? */
2136 if (offset < after) { /* easier to pull up */
2137 if (offset) { /* esp. if nothing to pull */
2138 src = &AvARRAY(ary)[offset-1];
2139 dst = src - diff; /* diff is negative */
2140 for (i = offset; i > 0; i--) /* can't trust Copy */
2144 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2148 if (after) { /* anything to pull down? */
2149 src = AvARRAY(ary) + offset + length;
2150 dst = src + diff; /* diff is negative */
2151 Move(src, dst, after, SV*);
2153 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2154 /* avoid later double free */
2158 dst[--i] = &sv_undef;
2161 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2163 *dst = NEWSV(46, 0);
2164 sv_setsv(*dst++, *src++);
2166 Safefree(tmparyval);
2169 else { /* no, expanding (or same) */
2171 New(452, tmparyval, length, SV*); /* so remember deletion */
2172 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2175 if (diff > 0) { /* expanding */
2177 /* push up or down? */
2179 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2183 Move(src, dst, offset, SV*);
2185 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2187 AvFILL(ary) += diff;
2190 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2191 av_extend(ary, AvFILL(ary) + diff);
2192 AvFILL(ary) += diff;
2195 dst = AvARRAY(ary) + AvFILL(ary);
2197 for (i = after; i; i--) {
2204 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2205 *dst = NEWSV(46, 0);
2206 sv_setsv(*dst++, *src++);
2208 MARK = ORIGMARK + 1;
2209 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2211 Copy(tmparyval, MARK, length, SV*);
2213 for (i = length, dst = MARK; i; i--)
2214 sv_2mortal(*dst++); /* free them eventualy */
2216 Safefree(tmparyval);
2220 else if (length--) {
2221 *MARK = tmparyval[length];
2224 while (length-- > 0)
2225 SvREFCNT_dec(tmparyval[length]);
2227 Safefree(tmparyval);
2238 dSP; dMARK; dORIGMARK; dTARGET;
2239 register AV *ary = (AV*)*++MARK;
2240 register SV *sv = &sv_undef;
2242 for (++MARK; MARK <= SP; MARK++) {
2245 sv_setsv(sv, *MARK);
2249 PUSHi( AvFILL(ary) + 1 );
2257 SV *sv = av_pop(av);
2258 if (sv != &sv_undef && AvREAL(av))
2259 (void)sv_2mortal(sv);
2268 SV *sv = av_shift(av);
2272 if (sv != &sv_undef && AvREAL(av))
2273 (void)sv_2mortal(sv);
2280 dSP; dMARK; dORIGMARK; dTARGET;
2281 register AV *ary = (AV*)*++MARK;
2285 av_unshift(ary, SP - MARK);
2288 sv_setsv(sv, *++MARK);
2289 (void)av_store(ary, i++, sv);
2293 PUSHi( AvFILL(ary) + 1 );
2303 if (GIMME == G_ARRAY) {
2314 register char *down;
2320 do_join(TARG, &sv_no, MARK, SP);
2322 sv_setsv(TARG, *SP);
2323 up = SvPV_force(TARG, len);
2325 down = SvPVX(TARG) + len - 1;
2331 (void)SvPOK_only(TARG);
2339 /* Explosives and implosives. */
2348 register char *pat = SvPV(left, llen);
2349 register char *s = SvPV(right, rlen);
2350 char *strend = s + rlen;
2352 register char *patend = pat + llen;
2357 /* These must not be in registers: */
2368 unsigned Quad_t auquad;
2374 register U32 culong;
2376 static char* bitcount = 0;
2378 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2380 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2381 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2383 while (isDIGIT(*patend) || *patend == '*')
2389 while (pat < patend) {
2394 else if (*pat == '*') {
2395 len = strend - strbeg; /* long enough */
2398 else if (isDIGIT(*pat)) {
2400 while (isDIGIT(*pat))
2401 len = (len * 10) + (*pat++ - '0');
2404 len = (datumtype != '@');
2409 if (len == 1 && pat[-1] != '1')
2418 if (len > strend - strbeg)
2419 DIE("@ outside of string");
2423 if (len > s - strbeg)
2424 DIE("X outside of string");
2428 if (len > strend - s)
2429 DIE("x outside of string");
2434 if (len > strend - s)
2437 goto uchar_checksum;
2438 sv = NEWSV(35, len);
2439 sv_setpvn(sv, s, len);
2441 if (datumtype == 'A') {
2442 aptr = s; /* borrow register */
2443 s = SvPVX(sv) + len - 1;
2444 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2447 SvCUR_set(sv, s - SvPVX(sv));
2448 s = aptr; /* unborrow register */
2450 XPUSHs(sv_2mortal(sv));
2454 if (pat[-1] == '*' || len > (strend - s) * 8)
2455 len = (strend - s) * 8;
2458 Newz(601, bitcount, 256, char);
2459 for (bits = 1; bits < 256; bits++) {
2460 if (bits & 1) bitcount[bits]++;
2461 if (bits & 2) bitcount[bits]++;
2462 if (bits & 4) bitcount[bits]++;
2463 if (bits & 8) bitcount[bits]++;
2464 if (bits & 16) bitcount[bits]++;
2465 if (bits & 32) bitcount[bits]++;
2466 if (bits & 64) bitcount[bits]++;
2467 if (bits & 128) bitcount[bits]++;
2471 culong += bitcount[*(unsigned char*)s++];
2476 if (datumtype == 'b') {
2478 if (bits & 1) culong++;
2484 if (bits & 128) culong++;
2491 sv = NEWSV(35, len + 1);
2494 aptr = pat; /* borrow register */
2496 if (datumtype == 'b') {
2498 for (len = 0; len < aint; len++) {
2499 if (len & 7) /*SUPPRESS 595*/
2503 *pat++ = '0' + (bits & 1);
2508 for (len = 0; len < aint; len++) {
2513 *pat++ = '0' + ((bits & 128) != 0);
2517 pat = aptr; /* unborrow register */
2518 XPUSHs(sv_2mortal(sv));
2522 if (pat[-1] == '*' || len > (strend - s) * 2)
2523 len = (strend - s) * 2;
2524 sv = NEWSV(35, len + 1);
2527 aptr = pat; /* borrow register */
2529 if (datumtype == 'h') {
2531 for (len = 0; len < aint; len++) {
2536 *pat++ = hexdigit[bits & 15];
2541 for (len = 0; len < aint; len++) {
2546 *pat++ = hexdigit[(bits >> 4) & 15];
2550 pat = aptr; /* unborrow register */
2551 XPUSHs(sv_2mortal(sv));
2554 if (len > strend - s)
2559 if (aint >= 128) /* fake up signed chars */
2568 if (aint >= 128) /* fake up signed chars */
2571 sv_setiv(sv, (I32)aint);
2572 PUSHs(sv_2mortal(sv));
2577 if (len > strend - s)
2591 sv_setiv(sv, (I32)auint);
2592 PUSHs(sv_2mortal(sv));
2597 along = (strend - s) / sizeof(I16);
2602 Copy(s, &ashort, 1, I16);
2610 Copy(s, &ashort, 1, I16);
2613 sv_setiv(sv, (I32)ashort);
2614 PUSHs(sv_2mortal(sv));
2621 along = (strend - s) / sizeof(U16);
2626 Copy(s, &aushort, 1, U16);
2629 if (datumtype == 'n')
2630 aushort = ntohs(aushort);
2633 if (datumtype == 'v')
2634 aushort = vtohs(aushort);
2642 Copy(s, &aushort, 1, U16);
2646 if (datumtype == 'n')
2647 aushort = ntohs(aushort);
2650 if (datumtype == 'v')
2651 aushort = vtohs(aushort);
2653 sv_setiv(sv, (I32)aushort);
2654 PUSHs(sv_2mortal(sv));
2659 along = (strend - s) / sizeof(int);
2664 Copy(s, &aint, 1, int);
2667 cdouble += (double)aint;
2675 Copy(s, &aint, 1, int);
2678 sv_setiv(sv, (I32)aint);
2679 PUSHs(sv_2mortal(sv));
2684 along = (strend - s) / sizeof(unsigned int);
2689 Copy(s, &auint, 1, unsigned int);
2690 s += sizeof(unsigned int);
2692 cdouble += (double)auint;
2700 Copy(s, &auint, 1, unsigned int);
2701 s += sizeof(unsigned int);
2703 if (auint <= I32_MAX)
2704 sv_setiv(sv, (I32)auint);
2706 sv_setnv(sv, (double)auint);
2707 PUSHs(sv_2mortal(sv));
2712 along = (strend - s) / sizeof(I32);
2717 Copy(s, &along, 1, I32);
2720 cdouble += (double)along;
2728 Copy(s, &along, 1, I32);
2731 sv_setiv(sv, (I32)along);
2732 PUSHs(sv_2mortal(sv));
2739 along = (strend - s) / sizeof(U32);
2744 Copy(s, &aulong, 1, U32);
2747 if (datumtype == 'N')
2748 aulong = ntohl(aulong);
2751 if (datumtype == 'V')
2752 aulong = vtohl(aulong);
2755 cdouble += (double)aulong;
2763 Copy(s, &aulong, 1, U32);
2767 if (datumtype == 'N')
2768 aulong = ntohl(aulong);
2771 if (datumtype == 'V')
2772 aulong = vtohl(aulong);
2774 sv_setnv(sv, (double)aulong);
2775 PUSHs(sv_2mortal(sv));
2780 along = (strend - s) / sizeof(char*);
2785 if (sizeof(char*) > strend - s)
2788 Copy(s, &aptr, 1, char*);
2794 PUSHs(sv_2mortal(sv));
2798 along = (strend - s) / sizeof(char);
2809 DIE("Unterminated compressed integer");
2814 auint = (auint << 7) | (*s & 0x7f);
2817 sv_setiv(sv, (I32) auint);
2818 PUSHs(sv_2mortal(sv));
2822 } else if (++bytes >= sizeof(auint)) { /* promote to double */
2826 adouble = (adouble * 128) + (*(++s) & 0x7f);
2828 DIE("Unterminated compressed integer");
2832 sv_setnv(sv, adouble);
2833 PUSHs(sv_2mortal(sv));
2844 if (sizeof(char*) > strend - s)
2847 Copy(s, &aptr, 1, char*);
2852 sv_setpvn(sv, aptr, len);
2853 PUSHs(sv_2mortal(sv));
2859 if (s + sizeof(Quad_t) > strend)
2862 Copy(s, &aquad, 1, Quad_t);
2863 s += sizeof(Quad_t);
2866 sv_setiv(sv, (IV)aquad);
2867 PUSHs(sv_2mortal(sv));
2873 if (s + sizeof(unsigned Quad_t) > strend)
2876 Copy(s, &auquad, 1, unsigned Quad_t);
2877 s += sizeof(unsigned Quad_t);
2880 sv_setiv(sv, (IV)auquad);
2881 PUSHs(sv_2mortal(sv));
2885 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2888 along = (strend - s) / sizeof(float);
2893 Copy(s, &afloat, 1, float);
2901 Copy(s, &afloat, 1, float);
2904 sv_setnv(sv, (double)afloat);
2905 PUSHs(sv_2mortal(sv));
2911 along = (strend - s) / sizeof(double);
2916 Copy(s, &adouble, 1, double);
2917 s += sizeof(double);
2924 Copy(s, &adouble, 1, double);
2925 s += sizeof(double);
2927 sv_setnv(sv, (double)adouble);
2928 PUSHs(sv_2mortal(sv));
2933 along = (strend - s) * 3 / 4;
2934 sv = NEWSV(42, along);
2937 while (s < strend && *s > ' ' && *s < 'a') {
2942 len = (*s++ - ' ') & 077;
2944 if (s < strend && *s >= ' ')
2945 a = (*s++ - ' ') & 077;
2948 if (s < strend && *s >= ' ')
2949 b = (*s++ - ' ') & 077;
2952 if (s < strend && *s >= ' ')
2953 c = (*s++ - ' ') & 077;
2956 if (s < strend && *s >= ' ')
2957 d = (*s++ - ' ') & 077;
2960 hunk[0] = a << 2 | b >> 4;
2961 hunk[1] = b << 4 | c >> 2;
2962 hunk[2] = c << 6 | d;
2963 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2968 else if (s[1] == '\n') /* possible checksum byte */
2971 XPUSHs(sv_2mortal(sv));
2976 if (strchr("fFdD", datumtype) ||
2977 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
2981 while (checksum >= 16) {
2985 while (checksum >= 4) {
2991 along = (1 << checksum) - 1;
2992 while (cdouble < 0.0)
2994 cdouble = modf(cdouble / adouble, &trouble) * adouble;
2995 sv_setnv(sv, cdouble);
2998 if (checksum < 32) {
2999 along = (1 << checksum) - 1;
3000 culong &= (U32)along;
3002 sv_setnv(sv, (double)culong);
3004 XPUSHs(sv_2mortal(sv));
3012 doencodes(sv, s, len)
3020 sv_catpvn(sv, hunk, 1);
3023 hunk[0] = ' ' + (077 & (*s >> 2));
3024 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3025 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3026 hunk[3] = ' ' + (077 & (s[2] & 077));
3027 sv_catpvn(sv, hunk, 4);
3031 for (s = SvPVX(sv); *s; s++) {
3035 sv_catpvn(sv, "\n", 1);
3040 dSP; dMARK; dORIGMARK; dTARGET;
3041 register SV *cat = TARG;
3044 register char *pat = SvPVx(*++MARK, fromlen);
3045 register char *patend = pat + fromlen;
3050 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3051 static char *space10 = " ";
3053 /* These must not be in registers: */
3062 unsigned Quad_t auquad;
3070 sv_setpvn(cat, "", 0);
3071 while (pat < patend) {
3072 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3075 len = strchr("@Xxu", datumtype) ? 0 : items;
3078 else if (isDIGIT(*pat)) {
3080 while (isDIGIT(*pat))
3081 len = (len * 10) + (*pat++ - '0');
3089 DIE("%% may only be used in unpack");
3100 if (SvCUR(cat) < len)
3101 DIE("X outside of string");
3108 sv_catpvn(cat, null10, 10);
3111 sv_catpvn(cat, null10, len);
3116 aptr = SvPV(fromstr, fromlen);
3120 sv_catpvn(cat, aptr, len);
3122 sv_catpvn(cat, aptr, fromlen);
3124 if (datumtype == 'A') {
3126 sv_catpvn(cat, space10, 10);
3129 sv_catpvn(cat, space10, len);
3133 sv_catpvn(cat, null10, 10);
3136 sv_catpvn(cat, null10, len);
3143 char *savepat = pat;
3148 aptr = SvPV(fromstr, fromlen);
3153 SvCUR(cat) += (len+7)/8;
3154 SvGROW(cat, SvCUR(cat) + 1);
3155 aptr = SvPVX(cat) + aint;
3160 if (datumtype == 'B') {
3161 for (len = 0; len++ < aint;) {
3162 items |= *pat++ & 1;
3166 *aptr++ = items & 0xff;
3172 for (len = 0; len++ < aint;) {
3178 *aptr++ = items & 0xff;
3184 if (datumtype == 'B')
3185 items <<= 7 - (aint & 7);
3187 items >>= 7 - (aint & 7);
3188 *aptr++ = items & 0xff;
3190 pat = SvPVX(cat) + SvCUR(cat);
3201 char *savepat = pat;
3206 aptr = SvPV(fromstr, fromlen);
3211 SvCUR(cat) += (len+1)/2;
3212 SvGROW(cat, SvCUR(cat) + 1);
3213 aptr = SvPVX(cat) + aint;
3218 if (datumtype == 'H') {
3219 for (len = 0; len++ < aint;) {
3221 items |= ((*pat++ & 15) + 9) & 15;
3223 items |= *pat++ & 15;
3227 *aptr++ = items & 0xff;
3233 for (len = 0; len++ < aint;) {
3235 items |= (((*pat++ & 15) + 9) & 15) << 4;
3237 items |= (*pat++ & 15) << 4;
3241 *aptr++ = items & 0xff;
3247 *aptr++ = items & 0xff;
3248 pat = SvPVX(cat) + SvCUR(cat);
3260 aint = SvIV(fromstr);
3262 sv_catpvn(cat, &achar, sizeof(char));
3265 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3270 afloat = (float)SvNV(fromstr);
3271 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3278 adouble = (double)SvNV(fromstr);
3279 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3285 ashort = (I16)SvIV(fromstr);
3287 ashort = htons(ashort);
3289 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3295 ashort = (I16)SvIV(fromstr);
3297 ashort = htovs(ashort);
3299 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3306 ashort = (I16)SvIV(fromstr);
3307 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3313 auint = U_I(SvNV(fromstr));
3314 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3320 adouble = floor((double)SvNV(fromstr));
3322 if (adouble < 268435456) { /* we can use integers */
3323 unsigned char buf[4]; /* buffer for compressed int */
3324 unsigned char *in = buf + 3;
3325 auint = U_I(adouble);
3327 *(in--) = (unsigned char) ((auint & 0x7f) | 0x80);
3330 buf[3] &= 0x7f; /* clear continue bit */
3331 sv_catpvn(cat, (char*) in+1, buf+3-in);
3333 unsigned char buf[sizeof(double)*2]; /* buffer for compressed int */
3334 I8 msize = sizeof(double)*2; /* 8/7 would be enough */
3335 unsigned char *in = buf + msize -1;
3337 croak("Cannot compress negative numbers");
3340 double next = adouble/128;
3341 *in = (unsigned char) (adouble - floor(next)*128);
3342 *in |= 0x80; /* set continue bit */
3343 if (--in < buf) { /* this cannot happen ;-) */
3344 croak ("Cannot compress integer");
3347 } while (floor(adouble)>0); /* floor() not necessary? */
3348 buf[msize-1] &= 0x7f; /* clear continue bit */
3349 sv_catpvn(cat, (char*) in+1, buf+msize-in-1);
3356 aint = SvIV(fromstr);
3357 sv_catpvn(cat, (char*)&aint, sizeof(int));
3363 aulong = U_L(SvNV(fromstr));
3365 aulong = htonl(aulong);
3367 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3373 aulong = U_L(SvNV(fromstr));
3375 aulong = htovl(aulong);
3377 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3383 aulong = U_L(SvNV(fromstr));
3384 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3390 along = SvIV(fromstr);
3391 sv_catpvn(cat, (char*)&along, sizeof(I32));
3398 auquad = (unsigned Quad_t)SvIV(fromstr);
3399 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3405 aquad = (Quad_t)SvIV(fromstr);
3406 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3409 #endif /* HAS_QUAD */
3411 len = 1; /* assume SV is correct length */
3416 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3417 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3422 aptr = SvPV(fromstr, fromlen);
3423 SvGROW(cat, fromlen * 4 / 3);
3428 while (fromlen > 0) {
3435 doencodes(cat, aptr, todo);
3453 register I32 limit = POPi; /* note, negative is forever */
3456 register char *s = SvPV(sv, len);
3457 char *strend = s + len;
3458 register PMOP *pm = (PMOP*)POPs;
3462 I32 maxiters = (strend - s) + 10;
3465 I32 origlimit = limit;
3468 AV *oldstack = curstack;
3469 register REGEXP *rx = pm->op_pmregexp;
3471 I32 oldsave = savestack_ix;
3474 DIE("panic: do_split");
3475 if (pm->op_pmreplroot)
3476 ary = GvAVn((GV*)pm->op_pmreplroot);
3477 else if (gimme != G_ARRAY)
3481 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3485 for (i = AvFILL(ary); i >= 0; i--)
3486 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3490 /* temporarily switch stacks */
3491 SWITCHSTACK(curstack, ary);
3493 base = SP - stack_base;
3495 if (pm->op_pmflags & PMf_SKIPWHITE) {
3499 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3501 multiline = pm->op_pmflags & PMf_MULTILINE;
3505 limit = maxiters + 2;
3506 if (pm->op_pmflags & PMf_WHITE) {
3509 for (m = s; m < strend && !isSPACE(*m); m++) ;
3512 dstr = NEWSV(30, m-s);
3513 sv_setpvn(dstr, s, m-s);
3518 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3521 else if (strEQ("^", rx->precomp)) {
3524 for (m = s; m < strend && *m != '\n'; m++) ;
3528 dstr = NEWSV(30, m-s);
3529 sv_setpvn(dstr, s, m-s);
3536 else if (pm->op_pmshort) {
3537 i = SvCUR(pm->op_pmshort);
3539 I32 fold = (pm->op_pmflags & PMf_FOLD);
3540 i = *SvPVX(pm->op_pmshort);
3541 if (fold && isUPPER(i))
3546 m < strend && *m != i &&
3547 (!isUPPER(*m) || toLOWER(*m) != i);
3548 m++) /*SUPPRESS 530*/
3551 else /*SUPPRESS 530*/
3552 for (m = s; m < strend && *m != i; m++) ;
3555 dstr = NEWSV(30, m-s);
3556 sv_setpvn(dstr, s, m-s);
3565 while (s < strend && --limit &&
3566 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3570 dstr = NEWSV(31, m-s);
3571 sv_setpvn(dstr, s, m-s);
3580 maxiters += (strend - s) * rx->nparens;
3581 while (s < strend && --limit &&
3582 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3584 && rx->subbase != orig) {
3589 strend = s + (strend - m);
3592 dstr = NEWSV(32, m-s);
3593 sv_setpvn(dstr, s, m-s);
3598 for (i = 1; i <= rx->nparens; i++) {
3602 dstr = NEWSV(33, m-s);
3603 sv_setpvn(dstr, s, m-s);
3606 dstr = NEWSV(33, 0);
3615 LEAVE_SCOPE(oldsave);
3616 iters = (SP - stack_base) - base;
3617 if (iters > maxiters)
3620 /* keep field after final delim? */
3621 if (s < strend || (iters && origlimit)) {
3622 dstr = NEWSV(34, strend-s);
3623 sv_setpvn(dstr, s, strend-s);
3629 else if (!origlimit) {
3630 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3634 SWITCHSTACK(ary, oldstack);
3635 if (gimme == G_ARRAY) {
3637 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3643 if (gimme == G_ARRAY)
3646 if (iters || !pm->op_pmreplroot) {