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
19 * Types used in bitwise operations.
21 * Normally we'd just use IV and UV. However, some hardware and
22 * software combinations (e.g. Alpha and current OSF/1) don't have a
23 * floating-point type to use for NV that has adequate bits to fully
24 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
26 * It just so happens that "int" is the right size everywhere, at
32 static void doencodes _((SV *sv, char *s, I32 len));
34 /* variations on pp_null */
39 if (GIMME != G_ARRAY) {
55 if (op->op_private & OPpLVAL_INTRO)
56 SAVECLEARSV(curpad[op->op_targ]);
58 if (op->op_flags & OPf_REF) {
62 if (GIMME == G_ARRAY) {
63 I32 maxarg = AvFILL((AV*)TARG) + 1;
65 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
69 SV* sv = sv_newmortal();
70 I32 maxarg = AvFILL((AV*)TARG) + 1;
81 if (op->op_private & OPpLVAL_INTRO)
82 SAVECLEARSV(curpad[op->op_targ]);
83 if (op->op_flags & OPf_REF)
85 if (GIMME == G_ARRAY) { /* array wanted */
86 RETURNOP(do_kv(ARGS));
89 SV* sv = sv_newmortal();
90 if (HvFILL((HV*)TARG)) {
91 sprintf(buf, "%d/%d", HvFILL((HV*)TARG), HvMAX((HV*)TARG)+1);
103 DIE("NOT IMPL LINE %d",__LINE__);
115 if (SvTYPE(sv) == SVt_PVIO) {
116 GV *gv = (GV*) sv_newmortal();
117 gv_init(gv, 0, "", 0, 0);
118 GvIOp(gv) = (IO *)sv;
121 } else if (SvTYPE(sv) != SVt_PVGV)
122 DIE("Not a GLOB reference");
125 if (SvTYPE(sv) != SVt_PVGV) {
128 if (SvGMAGICAL(sv)) {
134 if (op->op_flags & OPf_REF ||
135 op->op_private & HINT_STRICT_REFS)
136 DIE(no_usym, "a symbol");
140 if (op->op_private & HINT_STRICT_REFS)
141 DIE(no_symref, sym, "a symbol");
142 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
145 if (op->op_private & OPpLVAL_INTRO) {
149 SSPUSHPTR(SvREFCNT_inc(sv));
153 if (op->op_flags & OPf_SPECIAL) {
154 GvGP(sv)->gp_refcnt++; /* will soon be assigned */
162 GvSV(sv) = NEWSV(72,0);
163 GvLINE(sv) = curcop->cop_line;
178 switch (SvTYPE(sv)) {
182 DIE("Not a SCALAR reference");
189 if (SvTYPE(gv) != SVt_PVGV) {
190 if (SvGMAGICAL(sv)) {
196 if (op->op_flags & OPf_REF ||
197 op->op_private & HINT_STRICT_REFS)
198 DIE(no_usym, "a SCALAR");
202 if (op->op_private & HINT_STRICT_REFS)
203 DIE(no_symref, sym, "a SCALAR");
204 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
208 if (op->op_flags & OPf_MOD) {
209 if (op->op_private & OPpLVAL_INTRO)
210 sv = save_scalar((GV*)TOPs);
211 else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV))
222 SV *sv = AvARYLEN(av);
224 AvARYLEN(av) = sv = NEWSV(0,0);
225 sv_upgrade(sv, SVt_IV);
226 sv_magic(sv, (SV*)av, '#', Nullch, 0);
234 dSP; dTARGET; dPOPss;
236 if (op->op_flags & OPf_MOD) {
239 PUSHs(TARG); /* no SvSETMAGIC */
245 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
246 mg = mg_find(sv, 'g');
247 if (mg && mg->mg_len >= 0) {
248 PUSHi(mg->mg_len + curcop->cop_arybase);
262 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
263 /* (But not in defined().) */
264 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
281 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
282 if (cv && SvPOK(cv)) {
284 ret = sv_2mortal(newSVpv(p ? p : "", SvLEN(cv)));
293 CV* cv = (CV*)cSVOP->op_sv;
297 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
308 sv_upgrade(rv, SVt_RV);
313 (void)SvREFCNT_inc(sv);
326 if (GIMME != G_ARRAY) {
330 EXTEND_MORTAL(SP - MARK);
334 sv_upgrade(rv, SVt_RV);
339 (void)SvREFCNT_inc(sv);
356 if (sv && SvGMAGICAL(sv))
359 if (!sv || !SvROK(sv))
363 pv = sv_reftype(sv,TRUE);
364 PUSHp(pv, strlen(pv));
374 stash = curcop->cop_stash;
376 stash = gv_stashsv(POPs, TRUE);
378 (void)sv_bless(TOPs, stash);
382 /* Pattern matching */
387 register unsigned char *s;
390 register I32 *sfirst;
395 s = (unsigned char*)(SvPV(sv, len));
397 if (sv == lastscream)
401 SvSCREAM_off(lastscream);
402 SvREFCNT_dec(lastscream);
404 lastscream = SvREFCNT_inc(sv);
410 if (pos > maxscream) {
412 maxscream = pos + 80;
413 New(301, screamfirst, 256, I32);
414 New(302, screamnext, maxscream, I32);
417 maxscream = pos + pos / 4;
418 Renew(screamnext, maxscream, I32);
422 sfirst = screamfirst;
425 if (!sfirst || !snext)
426 DIE("do_study: out of memory");
428 for (ch = 256; ch; --ch)
435 snext[pos] = sfirst[ch] - pos;
442 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
445 XPUSHs(sv_2mortal(newSViv((I32)retval)));
454 if (op->op_flags & OPf_STACKED)
460 TARG = sv_newmortal();
461 PUSHi(do_trans(sv, op));
465 /* Lvalue operators. */
487 SETi(do_chomp(TOPs));
494 register I32 count = 0;
497 count += do_chomp(POPs);
508 if (!sv || !SvANY(sv))
510 switch (SvTYPE(sv)) {
512 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
516 if (HvARRAY(sv) || SvRMAGICAL(sv))
520 if (CvROOT(sv) || CvXSUB(sv))
544 if (SvTHINKFIRST(sv)) {
551 switch (SvTYPE(sv)) {
566 sv_setsv(sv, &sv_undef);
570 if (SvPOK(sv) && SvLEN(sv)) {
573 SvPV_set(sv, Nullch);
586 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
587 SvIVX(TOPs) != IV_MIN)
590 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
601 sv_setsv(TARG, TOPs);
602 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
603 SvIVX(TOPs) != IV_MAX)
606 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
620 sv_setsv(TARG, TOPs);
621 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
622 SvIVX(TOPs) != IV_MIN)
625 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
634 /* Ordinary operators. */
638 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
641 SETn( pow( left, right) );
648 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
651 SETn( left * right );
658 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
662 DIE("Illegal division by zero");
664 /* insure that 20./5. == 4. */
669 if ((double)I_32(x) == x &&
670 (double)I_32(value) == value &&
671 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
678 value = POPn / value;
687 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
693 DIE("Illegal modulus zero");
695 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
696 register IV left = SvIVX(TOPs);
698 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
700 SETi( left % right );
703 register double left = TOPn;
705 SETu( (right - (U_V(-left) - 1) % right) - 1 );
707 SETu( U_V(left) % right );
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 if (op->op_private & HINT_INTEGER) {
797 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
800 if (op->op_private & HINT_INTEGER) {
814 dSP; tryAMAGICbinSET(lt,0);
817 SETs((TOPn < value) ? &sv_yes : &sv_no);
824 dSP; tryAMAGICbinSET(gt,0);
827 SETs((TOPn > value) ? &sv_yes : &sv_no);
834 dSP; tryAMAGICbinSET(le,0);
837 SETs((TOPn <= value) ? &sv_yes : &sv_no);
844 dSP; tryAMAGICbinSET(ge,0);
847 SETs((TOPn >= value) ? &sv_yes : &sv_no);
854 dSP; tryAMAGICbinSET(ne,0);
857 SETs((TOPn != value) ? &sv_yes : &sv_no);
864 dSP; dTARGET; tryAMAGICbin(ncmp,0);
871 else if (left < right)
882 dSP; tryAMAGICbinSET(slt,0);
885 int cmp = ((op->op_private & OPpLOCALE)
886 ? sv_cmp_locale(left, right)
887 : sv_cmp(left, right));
888 SETs( cmp < 0 ? &sv_yes : &sv_no );
895 dSP; tryAMAGICbinSET(sgt,0);
898 int cmp = ((op->op_private & OPpLOCALE)
899 ? sv_cmp_locale(left, right)
900 : sv_cmp(left, right));
901 SETs( cmp > 0 ? &sv_yes : &sv_no );
908 dSP; tryAMAGICbinSET(sle,0);
911 int cmp = ((op->op_private & OPpLOCALE)
912 ? sv_cmp_locale(left, right)
913 : sv_cmp(left, right));
914 SETs( cmp <= 0 ? &sv_yes : &sv_no );
921 dSP; tryAMAGICbinSET(sge,0);
924 int cmp = ((op->op_private & OPpLOCALE)
925 ? sv_cmp_locale(left, right)
926 : sv_cmp(left, right));
927 SETs( cmp >= 0 ? &sv_yes : &sv_no );
934 dSP; tryAMAGICbinSET(seq,0);
937 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
944 dSP; tryAMAGICbinSET(sne,0);
947 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
954 dSP; dTARGET; tryAMAGICbin(scmp,0);
957 int cmp = ((op->op_private & OPpLOCALE)
958 ? sv_cmp_locale(left, right)
959 : sv_cmp(left, right));
967 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
970 if (SvNIOKp(left) || SvNIOKp(right)) {
971 if (op->op_private & HINT_INTEGER) {
972 IBW value = SvIV(left) & SvIV(right);
976 UBW value = SvUV(left) & SvUV(right);
981 do_vop(op->op_type, TARG, left, right);
990 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
993 if (SvNIOKp(left) || SvNIOKp(right)) {
994 if (op->op_private & HINT_INTEGER) {
995 IBW value = SvIV(left) ^ SvIV(right);
999 UBW value = SvUV(left) ^ SvUV(right);
1004 do_vop(op->op_type, TARG, left, right);
1013 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1016 if (SvNIOKp(left) || SvNIOKp(right)) {
1017 if (op->op_private & HINT_INTEGER) {
1018 IBW value = SvIV(left) | SvIV(right);
1022 UBW value = SvUV(left) | SvUV(right);
1027 do_vop(op->op_type, TARG, left, right);
1036 dSP; dTARGET; tryAMAGICun(neg);
1041 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1043 else if (SvNIOKp(sv))
1045 else if (SvPOKp(sv)) {
1047 char *s = SvPV(sv, len);
1048 if (isIDFIRST(*s)) {
1049 sv_setpvn(TARG, "-", 1);
1052 else if (*s == '+' || *s == '-') {
1054 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1057 sv_setnv(TARG, -SvNV(sv));
1069 dSP; tryAMAGICunSET(not);
1070 #endif /* OVERLOAD */
1071 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1077 dSP; dTARGET; tryAMAGICun(compl);
1081 if (op->op_private & HINT_INTEGER) {
1082 IBW value = ~SvIV(sv);
1086 UBW value = ~SvUV(sv);
1091 register char *tmps;
1092 register long *tmpl;
1097 tmps = SvPV_force(TARG, len);
1100 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1103 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1107 for ( ; anum > 0; anum--, tmps++)
1116 /* integer versions of some of the above */
1120 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1123 SETi( left * right );
1130 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1134 DIE("Illegal division by zero");
1135 value = POPi / value;
1143 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1146 SETi( left % right );
1153 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1156 SETi( left + right );
1163 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1166 SETi( left - right );
1173 dSP; tryAMAGICbinSET(lt,0);
1176 SETs((left < right) ? &sv_yes : &sv_no);
1183 dSP; tryAMAGICbinSET(gt,0);
1186 SETs((left > right) ? &sv_yes : &sv_no);
1193 dSP; tryAMAGICbinSET(le,0);
1196 SETs((left <= right) ? &sv_yes : &sv_no);
1203 dSP; tryAMAGICbinSET(ge,0);
1206 SETs((left >= right) ? &sv_yes : &sv_no);
1213 dSP; tryAMAGICbinSET(eq,0);
1216 SETs((left == right) ? &sv_yes : &sv_no);
1223 dSP; tryAMAGICbinSET(ne,0);
1226 SETs((left != right) ? &sv_yes : &sv_no);
1233 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1240 else if (left < right)
1251 dSP; dTARGET; tryAMAGICun(neg);
1256 /* High falutin' math. */
1260 dSP; dTARGET; tryAMAGICbin(atan2,0);
1263 SETn(atan2(left, right));
1270 dSP; dTARGET; tryAMAGICun(sin);
1282 dSP; dTARGET; tryAMAGICun(cos);
1303 value = rand() * value / 2147483648.0;
1306 value = rand() * value / 65536.0;
1309 value = rand() * value / 32768.0;
1311 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1326 # include <starlet.h>
1327 unsigned int when[2];
1328 _ckvmssts(sys$gettim(when));
1329 anum = when[0] ^ when[1];
1331 # if defined(I_SYS_TIME) && !defined(PLAN9)
1332 struct timeval when;
1333 gettimeofday(&when,(struct timezone *) 0);
1334 anum = when.tv_sec ^ when.tv_usec;
1341 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1342 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1343 /* What is a good hashing algorithm here? */
1344 anum ^= ( ( 269 * (U32)getpid())
1345 ^ (26107 * (U32)&when)
1346 ^ (73819 * (U32)stack_sp));
1358 dSP; dTARGET; tryAMAGICun(exp);
1370 dSP; dTARGET; tryAMAGICun(log);
1375 SET_NUMERIC_STANDARD();
1376 DIE("Can't take log of %g", value);
1386 dSP; dTARGET; tryAMAGICun(sqrt);
1391 SET_NUMERIC_STANDARD();
1392 DIE("Can't take sqrt of %g", value);
1394 value = sqrt(value);
1406 (void)modf(value, &value);
1408 (void)modf(-value, &value);
1417 dSP; dTARGET; tryAMAGICun(abs);
1437 XPUSHu(scan_hex(tmps, 99, &argtype));
1449 while (*tmps && isSPACE(*tmps))
1454 value = scan_hex(++tmps, 99, &argtype);
1456 value = scan_oct(tmps, 99, &argtype);
1466 SETi( sv_len(TOPs) );
1478 I32 lvalue = op->op_flags & OPf_MOD;
1480 I32 arybase = curcop->cop_arybase;
1484 pos = POPi - arybase;
1486 tmps = SvPV(sv, curlen);
1488 pos += curlen + arybase;
1489 if (pos < 0 || pos > curlen) {
1490 if (dowarn || lvalue)
1491 warn("substr outside of string");
1498 len += curlen - pos;
1503 rem = curlen - pos; /* rem=how many bytes left*/
1506 sv_setpvn(TARG, tmps, rem);
1507 if (lvalue) { /* it's an lvalue! */
1508 if (!SvGMAGICAL(sv)) {
1512 warn("Attempt to use reference as lvalue in substr");
1514 if (SvOK(sv)) /* is it defined ? */
1515 (void)SvPOK_only(sv);
1517 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1519 if (SvTYPE(TARG) < SVt_PVLV) {
1520 sv_upgrade(TARG, SVt_PVLV);
1521 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1526 LvTARGOFF(TARG) = pos;
1527 LvTARGLEN(TARG) = rem;
1530 PUSHs(TARG); /* avoid SvSETMAGIC here */
1537 register I32 size = POPi;
1538 register I32 offset = POPi;
1539 register SV *src = POPs;
1540 I32 lvalue = op->op_flags & OPf_MOD;
1542 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1543 unsigned long retnum;
1546 offset *= size; /* turn into bit offset */
1547 len = (offset + size + 7) / 8;
1548 if (offset < 0 || size < 1)
1551 if (lvalue) { /* it's an lvalue! */
1552 if (SvTYPE(TARG) < SVt_PVLV) {
1553 sv_upgrade(TARG, SVt_PVLV);
1554 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1559 LvTARGOFF(TARG) = offset;
1560 LvTARGLEN(TARG) = size;
1568 if (offset >= srclen)
1571 retnum = (unsigned long) s[offset] << 8;
1573 else if (size == 32) {
1574 if (offset >= srclen)
1576 else if (offset + 1 >= srclen)
1577 retnum = (unsigned long) s[offset] << 24;
1578 else if (offset + 2 >= srclen)
1579 retnum = ((unsigned long) s[offset] << 24) +
1580 ((unsigned long) s[offset + 1] << 16);
1582 retnum = ((unsigned long) s[offset] << 24) +
1583 ((unsigned long) s[offset + 1] << 16) +
1584 (s[offset + 2] << 8);
1589 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1594 else if (size == 16)
1595 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1596 else if (size == 32)
1597 retnum = ((unsigned long) s[offset] << 24) +
1598 ((unsigned long) s[offset + 1] << 16) +
1599 (s[offset + 2] << 8) + s[offset+3];
1603 sv_setiv(TARG, (I32)retnum);
1618 I32 arybase = curcop->cop_arybase;
1623 offset = POPi - arybase;
1626 tmps = SvPV(big, biglen);
1629 else if (offset > biglen)
1631 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1632 (unsigned char*)tmps + biglen, little)))
1633 retval = -1 + arybase;
1635 retval = tmps2 - tmps + arybase;
1652 I32 arybase = curcop->cop_arybase;
1658 tmps2 = SvPV(little, llen);
1659 tmps = SvPV(big, blen);
1663 offset = SvIV(offstr) - arybase + llen;
1666 else if (offset > blen)
1668 if (!(tmps2 = rninstr(tmps, tmps + offset,
1669 tmps2, tmps2 + llen)))
1670 retval = -1 + arybase;
1672 retval = tmps2 - tmps + arybase;
1679 dSP; dMARK; dORIGMARK; dTARGET;
1680 #ifdef USE_LOCALE_NUMERIC
1681 if (op->op_private & OPpLOCALE)
1682 SET_NUMERIC_LOCAL();
1684 SET_NUMERIC_STANDARD();
1686 do_sprintf(TARG, SP-MARK, MARK+1);
1687 TAINT_IF(SvTAINTED(TARG));
1701 value = (I32) (*tmps & 255);
1706 value = (I32) (anum & 255);
1717 (void)SvUPGRADE(TARG,SVt_PV);
1723 (void)SvPOK_only(TARG);
1730 dSP; dTARGET; dPOPTOPssrl;
1732 char *tmps = SvPV(left, na);
1734 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1736 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1740 "The crypt() function is unimplemented due to excessive paranoia.");
1752 if (!SvPADTMP(sv)) {
1758 s = SvPV_force(sv, na);
1760 if (op->op_private & OPpLOCALE) {
1763 *s = toUPPER_LC(*s);
1778 if (!SvPADTMP(sv)) {
1784 s = SvPV_force(sv, na);
1786 if (op->op_private & OPpLOCALE) {
1789 *s = toLOWER_LC(*s);
1806 if (!SvPADTMP(sv)) {
1813 s = SvPV_force(sv, len);
1815 register char *send = s + len;
1817 if (op->op_private & OPpLOCALE) {
1820 for (; s < send; s++)
1821 *s = toUPPER_LC(*s);
1824 for (; s < send; s++)
1838 if (!SvPADTMP(sv)) {
1845 s = SvPV_force(sv, len);
1847 register char *send = s + len;
1849 if (op->op_private & OPpLOCALE) {
1852 for (; s < send; s++)
1853 *s = toLOWER_LC(*s);
1856 for (; s < send; s++)
1868 register char *s = SvPV(sv,len);
1872 (void)SvUPGRADE(TARG, SVt_PV);
1873 SvGROW(TARG, (len * 2) + 1);
1881 SvCUR_set(TARG, d - SvPVX(TARG));
1882 (void)SvPOK_only(TARG);
1885 sv_setpvn(TARG, s, len);
1894 dSP; dMARK; dORIGMARK;
1896 register AV* av = (AV*)POPs;
1897 register I32 lval = op->op_flags & OPf_MOD;
1898 I32 arybase = curcop->cop_arybase;
1901 if (SvTYPE(av) == SVt_PVAV) {
1902 if (lval && op->op_private & OPpLVAL_INTRO) {
1904 for (svp = mark + 1; svp <= sp; svp++) {
1909 if (max > AvMAX(av))
1912 while (++MARK <= SP) {
1913 elem = SvIVx(*MARK);
1917 svp = av_fetch(av, elem, lval);
1919 if (!svp || *svp == &sv_undef)
1920 DIE(no_aelem, elem);
1921 if (op->op_private & OPpLVAL_INTRO)
1924 *MARK = svp ? *svp : &sv_undef;
1927 if (GIMME != G_ARRAY) {
1935 /* Associative arrays. */
1940 HV *hash = (HV*)POPs;
1944 entry = hv_iternext(hash); /* might clobber stack_sp */
1949 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1950 if (GIMME == G_ARRAY) {
1952 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1957 else if (GIMME == G_SCALAR)
1980 if (SvTYPE(hv) != SVt_PVHV) {
1981 DIE("Not a HASH reference");
1983 sv = hv_delete_ent(hv, tmpsv,
1984 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1997 if (SvTYPE(hv) != SVt_PVHV) {
1998 DIE("Not a HASH reference");
2000 if (hv_exists_ent(hv, tmpsv, 0))
2007 dSP; dMARK; dORIGMARK;
2009 register HV *hv = (HV*)POPs;
2010 register I32 lval = op->op_flags & OPf_MOD;
2012 if (SvTYPE(hv) == SVt_PVHV) {
2013 while (++MARK <= SP) {
2016 he = hv_fetch_ent(hv, keysv, lval, 0);
2018 if (!he || HeVAL(he) == &sv_undef)
2019 DIE(no_helem, SvPV(keysv, na));
2020 if (op->op_private & OPpLVAL_INTRO)
2021 save_svref(&HeVAL(he));
2023 *MARK = he ? HeVAL(he) : &sv_undef;
2026 if (GIMME != G_ARRAY) {
2034 /* List operators. */
2039 if (GIMME != G_ARRAY) {
2041 *MARK = *SP; /* unwanted list, return last item */
2052 SV **lastrelem = stack_sp;
2053 SV **lastlelem = stack_base + POPMARK;
2054 SV **firstlelem = stack_base + POPMARK + 1;
2055 register SV **firstrelem = lastlelem + 1;
2056 I32 arybase = curcop->cop_arybase;
2057 I32 lval = op->op_flags & OPf_MOD;
2058 I32 is_something_there = lval;
2060 register I32 max = lastrelem - lastlelem;
2061 register SV **lelem;
2064 if (GIMME != G_ARRAY) {
2065 ix = SvIVx(*lastlelem);
2070 if (ix < 0 || ix >= max)
2071 *firstlelem = &sv_undef;
2073 *firstlelem = firstrelem[ix];
2079 SP = firstlelem - 1;
2083 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2089 else if (!(*lelem = firstrelem[ix]))
2094 if (ix >= max || !(*lelem = firstrelem[ix]))
2097 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2098 is_something_there = TRUE;
2100 if (is_something_there)
2103 SP = firstlelem - 1;
2110 I32 items = SP - MARK;
2112 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2118 dSP; dMARK; dORIGMARK;
2120 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2124 SV *val = NEWSV(46, 0);
2126 sv_setsv(val, *++MARK);
2128 warn("Odd number of elements in hash list");
2129 (void)hv_store_ent(hv,key,val,0);
2138 dSP; dMARK; dORIGMARK;
2139 register AV *ary = (AV*)*++MARK;
2143 register I32 offset;
2144 register I32 length;
2153 offset = SvIVx(*MARK);
2155 offset += AvFILL(ary) + 1;
2157 offset -= curcop->cop_arybase;
2159 length = SvIVx(*MARK++);
2164 length = AvMAX(ary) + 1; /* close enough to infinity */
2168 length = AvMAX(ary) + 1;
2176 if (offset > AvFILL(ary) + 1)
2177 offset = AvFILL(ary) + 1;
2178 after = AvFILL(ary) + 1 - (offset + length);
2179 if (after < 0) { /* not that much array */
2180 length += after; /* offset+length now in array */
2186 /* At this point, MARK .. SP-1 is our new LIST */
2189 diff = newlen - length;
2191 if (diff < 0) { /* shrinking the area */
2193 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2194 Copy(MARK, tmparyval, newlen, SV*);
2197 MARK = ORIGMARK + 1;
2198 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2199 MEXTEND(MARK, length);
2200 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2202 EXTEND_MORTAL(length);
2203 for (i = length, dst = MARK; i; i--) {
2204 if (!SvIMMORTAL(*dst))
2205 sv_2mortal(*dst); /* free them eventualy */
2212 *MARK = AvARRAY(ary)[offset+length-1];
2214 if (!SvIMMORTAL(*MARK))
2216 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2217 SvREFCNT_dec(*dst++); /* free them now */
2220 AvFILL(ary) += diff;
2222 /* pull up or down? */
2224 if (offset < after) { /* easier to pull up */
2225 if (offset) { /* esp. if nothing to pull */
2226 src = &AvARRAY(ary)[offset-1];
2227 dst = src - diff; /* diff is negative */
2228 for (i = offset; i > 0; i--) /* can't trust Copy */
2232 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2236 if (after) { /* anything to pull down? */
2237 src = AvARRAY(ary) + offset + length;
2238 dst = src + diff; /* diff is negative */
2239 Move(src, dst, after, SV*);
2241 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2242 /* avoid later double free */
2246 dst[--i] = &sv_undef;
2249 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2251 *dst = NEWSV(46, 0);
2252 sv_setsv(*dst++, *src++);
2254 Safefree(tmparyval);
2257 else { /* no, expanding (or same) */
2259 New(452, tmparyval, length, SV*); /* so remember deletion */
2260 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2263 if (diff > 0) { /* expanding */
2265 /* push up or down? */
2267 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2271 Move(src, dst, offset, SV*);
2273 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2275 AvFILL(ary) += diff;
2278 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2279 av_extend(ary, AvFILL(ary) + diff);
2280 AvFILL(ary) += diff;
2283 dst = AvARRAY(ary) + AvFILL(ary);
2285 for (i = after; i; i--) {
2292 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2293 *dst = NEWSV(46, 0);
2294 sv_setsv(*dst++, *src++);
2296 MARK = ORIGMARK + 1;
2297 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2299 Copy(tmparyval, MARK, length, SV*);
2301 EXTEND_MORTAL(length);
2302 for (i = length, dst = MARK; i; i--) {
2303 if (!SvIMMORTAL(*dst))
2304 sv_2mortal(*dst); /* free them eventualy */
2308 Safefree(tmparyval);
2312 else if (length--) {
2313 *MARK = tmparyval[length];
2315 if (!SvIMMORTAL(*MARK))
2317 while (length-- > 0)
2318 SvREFCNT_dec(tmparyval[length]);
2320 Safefree(tmparyval);
2331 dSP; dMARK; dORIGMARK; dTARGET;
2332 register AV *ary = (AV*)*++MARK;
2333 register SV *sv = &sv_undef;
2335 for (++MARK; MARK <= SP; MARK++) {
2338 sv_setsv(sv, *MARK);
2342 PUSHi( AvFILL(ary) + 1 );
2350 SV *sv = av_pop(av);
2351 if (!SvIMMORTAL(sv) && AvREAL(av))
2352 (void)sv_2mortal(sv);
2361 SV *sv = av_shift(av);
2365 if (!SvIMMORTAL(sv) && AvREAL(av))
2366 (void)sv_2mortal(sv);
2373 dSP; dMARK; dORIGMARK; dTARGET;
2374 register AV *ary = (AV*)*++MARK;
2378 av_unshift(ary, SP - MARK);
2381 sv_setsv(sv, *++MARK);
2382 (void)av_store(ary, i++, sv);
2386 PUSHi( AvFILL(ary) + 1 );
2396 if (GIMME == G_ARRAY) {
2407 register char *down;
2413 do_join(TARG, &sv_no, MARK, SP);
2415 sv_setsv(TARG, *SP);
2416 up = SvPV_force(TARG, len);
2418 down = SvPVX(TARG) + len - 1;
2424 (void)SvPOK_only(TARG);
2438 char *s = SvPV(sv, len);
2442 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2443 SV *new = newSVpv("0000000000", 10);
2446 SvREFCNT_dec(sv); /* free old sv */
2451 while (!*t) /* trailing '\0'? */
2454 i = ((*t - '0') << 7) + m;
2455 *(t--) = '0' + (i % 10);
2461 /* Explosives and implosives. */
2471 register char *pat = SvPV(left, llen);
2472 register char *s = SvPV(right, rlen);
2473 char *strend = s + rlen;
2475 register char *patend = pat + llen;
2480 /* These must not be in registers: */
2491 unsigned Quad_t auquad;
2497 register U32 culong;
2499 static char* bitcount = 0;
2501 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2503 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2504 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2506 while (isDIGIT(*patend) || *patend == '*')
2512 while (pat < patend) {
2517 else if (*pat == '*') {
2518 len = strend - strbeg; /* long enough */
2521 else if (isDIGIT(*pat)) {
2523 while (isDIGIT(*pat))
2524 len = (len * 10) + (*pat++ - '0');
2527 len = (datumtype != '@');
2532 if (len == 1 && pat[-1] != '1')
2541 if (len > strend - strbeg)
2542 DIE("@ outside of string");
2546 if (len > s - strbeg)
2547 DIE("X outside of string");
2551 if (len > strend - s)
2552 DIE("x outside of string");
2557 if (len > strend - s)
2560 goto uchar_checksum;
2561 sv = NEWSV(35, len);
2562 sv_setpvn(sv, s, len);
2564 if (datumtype == 'A') {
2565 aptr = s; /* borrow register */
2566 s = SvPVX(sv) + len - 1;
2567 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2570 SvCUR_set(sv, s - SvPVX(sv));
2571 s = aptr; /* unborrow register */
2573 XPUSHs(sv_2mortal(sv));
2577 if (pat[-1] == '*' || len > (strend - s) * 8)
2578 len = (strend - s) * 8;
2581 Newz(601, bitcount, 256, char);
2582 for (bits = 1; bits < 256; bits++) {
2583 if (bits & 1) bitcount[bits]++;
2584 if (bits & 2) bitcount[bits]++;
2585 if (bits & 4) bitcount[bits]++;
2586 if (bits & 8) bitcount[bits]++;
2587 if (bits & 16) bitcount[bits]++;
2588 if (bits & 32) bitcount[bits]++;
2589 if (bits & 64) bitcount[bits]++;
2590 if (bits & 128) bitcount[bits]++;
2594 culong += bitcount[*(unsigned char*)s++];
2599 if (datumtype == 'b') {
2601 if (bits & 1) culong++;
2607 if (bits & 128) culong++;
2614 sv = NEWSV(35, len + 1);
2617 aptr = pat; /* borrow register */
2619 if (datumtype == 'b') {
2621 for (len = 0; len < aint; len++) {
2622 if (len & 7) /*SUPPRESS 595*/
2626 *pat++ = '0' + (bits & 1);
2631 for (len = 0; len < aint; len++) {
2636 *pat++ = '0' + ((bits & 128) != 0);
2640 pat = aptr; /* unborrow register */
2641 XPUSHs(sv_2mortal(sv));
2645 if (pat[-1] == '*' || len > (strend - s) * 2)
2646 len = (strend - s) * 2;
2647 sv = NEWSV(35, len + 1);
2650 aptr = pat; /* borrow register */
2652 if (datumtype == 'h') {
2654 for (len = 0; len < aint; len++) {
2659 *pat++ = hexdigit[bits & 15];
2664 for (len = 0; len < aint; len++) {
2669 *pat++ = hexdigit[(bits >> 4) & 15];
2673 pat = aptr; /* unborrow register */
2674 XPUSHs(sv_2mortal(sv));
2677 if (len > strend - s)
2682 if (aint >= 128) /* fake up signed chars */
2692 if (aint >= 128) /* fake up signed chars */
2695 sv_setiv(sv, (I32)aint);
2696 PUSHs(sv_2mortal(sv));
2701 if (len > strend - s)
2716 sv_setiv(sv, (I32)auint);
2717 PUSHs(sv_2mortal(sv));
2722 along = (strend - s) / sizeof(I16);
2727 Copy(s, &ashort, 1, I16);
2736 Copy(s, &ashort, 1, I16);
2739 sv_setiv(sv, (I32)ashort);
2740 PUSHs(sv_2mortal(sv));
2747 along = (strend - s) / sizeof(U16);
2752 Copy(s, &aushort, 1, U16);
2755 if (datumtype == 'n')
2756 aushort = ntohs(aushort);
2759 if (datumtype == 'v')
2760 aushort = vtohs(aushort);
2769 Copy(s, &aushort, 1, U16);
2773 if (datumtype == 'n')
2774 aushort = ntohs(aushort);
2777 if (datumtype == 'v')
2778 aushort = vtohs(aushort);
2780 sv_setiv(sv, (I32)aushort);
2781 PUSHs(sv_2mortal(sv));
2786 along = (strend - s) / sizeof(int);
2791 Copy(s, &aint, 1, int);
2794 cdouble += (double)aint;
2803 Copy(s, &aint, 1, int);
2806 sv_setiv(sv, (I32)aint);
2807 PUSHs(sv_2mortal(sv));
2812 along = (strend - s) / sizeof(unsigned int);
2817 Copy(s, &auint, 1, unsigned int);
2818 s += sizeof(unsigned int);
2820 cdouble += (double)auint;
2829 Copy(s, &auint, 1, unsigned int);
2830 s += sizeof(unsigned int);
2832 if (auint <= I32_MAX)
2833 sv_setiv(sv, (I32)auint);
2835 sv_setnv(sv, (double)auint);
2836 PUSHs(sv_2mortal(sv));
2841 along = (strend - s) / sizeof(I32);
2846 Copy(s, &along, 1, I32);
2849 cdouble += (double)along;
2858 Copy(s, &along, 1, I32);
2861 sv_setiv(sv, (I32)along);
2862 PUSHs(sv_2mortal(sv));
2869 along = (strend - s) / sizeof(U32);
2874 Copy(s, &aulong, 1, U32);
2877 if (datumtype == 'N')
2878 aulong = ntohl(aulong);
2881 if (datumtype == 'V')
2882 aulong = vtohl(aulong);
2885 cdouble += (double)aulong;
2894 Copy(s, &aulong, 1, U32);
2898 if (datumtype == 'N')
2899 aulong = ntohl(aulong);
2902 if (datumtype == 'V')
2903 aulong = vtohl(aulong);
2905 sv_setnv(sv, (double)aulong);
2906 PUSHs(sv_2mortal(sv));
2911 along = (strend - s) / sizeof(char*);
2917 if (sizeof(char*) > strend - s)
2920 Copy(s, &aptr, 1, char*);
2926 PUSHs(sv_2mortal(sv));
2936 while ((len > 0) && (s < strend)) {
2937 auv = (auv << 7) | (*s & 0x7f);
2938 if (!(*s++ & 0x80)) {
2942 PUSHs(sv_2mortal(sv));
2946 else if (++bytes >= sizeof(UV)) { /* promote to string */
2947 char decn[sizeof(UV) * 3 + 1];
2950 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2951 sv = newSVpv(decn, 0);
2952 while (s < strend) {
2953 sv = mul128(sv, *s & 0x7f);
2954 if (!(*s++ & 0x80)) {
2963 PUSHs(sv_2mortal(sv));
2968 if ((s >= strend) && bytes)
2969 croak("Unterminated compressed integer");
2974 if (sizeof(char*) > strend - s)
2977 Copy(s, &aptr, 1, char*);
2982 sv_setpvn(sv, aptr, len);
2983 PUSHs(sv_2mortal(sv));
2990 if (s + sizeof(Quad_t) > strend)
2993 Copy(s, &aquad, 1, Quad_t);
2994 s += sizeof(Quad_t);
2997 sv_setiv(sv, (IV)aquad);
2998 PUSHs(sv_2mortal(sv));
3005 if (s + sizeof(unsigned Quad_t) > strend)
3008 Copy(s, &auquad, 1, unsigned Quad_t);
3009 s += sizeof(unsigned Quad_t);
3012 sv_setiv(sv, (IV)auquad);
3013 PUSHs(sv_2mortal(sv));
3017 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3020 along = (strend - s) / sizeof(float);
3025 Copy(s, &afloat, 1, float);
3034 Copy(s, &afloat, 1, float);
3037 sv_setnv(sv, (double)afloat);
3038 PUSHs(sv_2mortal(sv));
3044 along = (strend - s) / sizeof(double);
3049 Copy(s, &adouble, 1, double);
3050 s += sizeof(double);
3058 Copy(s, &adouble, 1, double);
3059 s += sizeof(double);
3061 sv_setnv(sv, (double)adouble);
3062 PUSHs(sv_2mortal(sv));
3067 along = (strend - s) * 3 / 4;
3068 sv = NEWSV(42, along);
3071 while (s < strend && *s > ' ' && *s < 'a') {
3076 len = (*s++ - ' ') & 077;
3078 if (s < strend && *s >= ' ')
3079 a = (*s++ - ' ') & 077;
3082 if (s < strend && *s >= ' ')
3083 b = (*s++ - ' ') & 077;
3086 if (s < strend && *s >= ' ')
3087 c = (*s++ - ' ') & 077;
3090 if (s < strend && *s >= ' ')
3091 d = (*s++ - ' ') & 077;
3094 hunk[0] = a << 2 | b >> 4;
3095 hunk[1] = b << 4 | c >> 2;
3096 hunk[2] = c << 6 | d;
3097 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3102 else if (s[1] == '\n') /* possible checksum byte */
3105 XPUSHs(sv_2mortal(sv));
3110 if (strchr("fFdD", datumtype) ||
3111 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3115 while (checksum >= 16) {
3119 while (checksum >= 4) {
3125 along = (1 << checksum) - 1;
3126 while (cdouble < 0.0)
3128 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3129 sv_setnv(sv, cdouble);
3132 if (checksum < 32) {
3133 along = (1 << checksum) - 1;
3134 culong &= (U32)along;
3136 sv_setnv(sv, (double)culong);
3138 XPUSHs(sv_2mortal(sv));
3142 if (sp == oldsp && GIMME != G_ARRAY)
3148 doencodes(sv, s, len)
3156 sv_catpvn(sv, hunk, 1);
3159 hunk[0] = ' ' + (077 & (*s >> 2));
3160 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3161 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3162 hunk[3] = ' ' + (077 & (s[2] & 077));
3163 sv_catpvn(sv, hunk, 4);
3167 for (s = SvPVX(sv); *s; s++) {
3171 sv_catpvn(sv, "\n", 1);
3179 SV *result = newSVpv("", l);
3180 char *result_c = SvPV(result, na); /* convenience */
3181 char *out = result_c;
3191 SvREFCNT_dec(result);
3214 SvREFCNT_dec(result);
3220 SvCUR_set(result, out - result_c);
3226 SV *pnum; /* must be '\0' terminated */
3230 char *s = SvPV(pnum, len);
3239 i = m * 10 + (*t - '0');
3241 r = (i >> 7); /* r < 10 */
3248 SvCUR_set(pnum, (STRLEN) (t - s));
3255 dSP; dMARK; dORIGMARK; dTARGET;
3256 register SV *cat = TARG;
3259 register char *pat = SvPVx(*++MARK, fromlen);
3260 register char *patend = pat + fromlen;
3265 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3266 static char *space10 = " ";
3268 /* These must not be in registers: */
3277 unsigned Quad_t auquad;
3285 sv_setpvn(cat, "", 0);
3286 while (pat < patend) {
3287 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3290 len = strchr("@Xxu", datumtype) ? 0 : items;
3293 else if (isDIGIT(*pat)) {
3295 while (isDIGIT(*pat))
3296 len = (len * 10) + (*pat++ - '0');
3304 DIE("%% may only be used in unpack");
3315 if (SvCUR(cat) < len)
3316 DIE("X outside of string");
3323 sv_catpvn(cat, null10, 10);
3326 sv_catpvn(cat, null10, len);
3331 aptr = SvPV(fromstr, fromlen);
3335 sv_catpvn(cat, aptr, len);
3337 sv_catpvn(cat, aptr, fromlen);
3339 if (datumtype == 'A') {
3341 sv_catpvn(cat, space10, 10);
3344 sv_catpvn(cat, space10, len);
3348 sv_catpvn(cat, null10, 10);
3351 sv_catpvn(cat, null10, len);
3358 char *savepat = pat;
3363 aptr = SvPV(fromstr, fromlen);
3368 SvCUR(cat) += (len+7)/8;
3369 SvGROW(cat, SvCUR(cat) + 1);
3370 aptr = SvPVX(cat) + aint;
3375 if (datumtype == 'B') {
3376 for (len = 0; len++ < aint;) {
3377 items |= *pat++ & 1;
3381 *aptr++ = items & 0xff;
3387 for (len = 0; len++ < aint;) {
3393 *aptr++ = items & 0xff;
3399 if (datumtype == 'B')
3400 items <<= 7 - (aint & 7);
3402 items >>= 7 - (aint & 7);
3403 *aptr++ = items & 0xff;
3405 pat = SvPVX(cat) + SvCUR(cat);
3416 char *savepat = pat;
3421 aptr = SvPV(fromstr, fromlen);
3426 SvCUR(cat) += (len+1)/2;
3427 SvGROW(cat, SvCUR(cat) + 1);
3428 aptr = SvPVX(cat) + aint;
3433 if (datumtype == 'H') {
3434 for (len = 0; len++ < aint;) {
3436 items |= ((*pat++ & 15) + 9) & 15;
3438 items |= *pat++ & 15;
3442 *aptr++ = items & 0xff;
3448 for (len = 0; len++ < aint;) {
3450 items |= (((*pat++ & 15) + 9) & 15) << 4;
3452 items |= (*pat++ & 15) << 4;
3456 *aptr++ = items & 0xff;
3462 *aptr++ = items & 0xff;
3463 pat = SvPVX(cat) + SvCUR(cat);
3475 aint = SvIV(fromstr);
3477 sv_catpvn(cat, &achar, sizeof(char));
3480 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3485 afloat = (float)SvNV(fromstr);
3486 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3493 adouble = (double)SvNV(fromstr);
3494 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3500 ashort = (I16)SvIV(fromstr);
3502 ashort = htons(ashort);
3504 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3510 ashort = (I16)SvIV(fromstr);
3512 ashort = htovs(ashort);
3514 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3521 ashort = (I16)SvIV(fromstr);
3522 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3528 auint = U_I(SvNV(fromstr));
3529 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3535 adouble = floor(SvNV(fromstr));
3538 croak("Cannot compress negative numbers");
3540 if (adouble <= UV_MAX) {
3541 char buf[1 + sizeof(UV)];
3542 char *in = buf + sizeof(buf);
3543 UV auv = U_V(adouble);;
3546 *--in = (auv & 0x7f) | 0x80;
3549 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3550 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3552 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3553 char *from, *result, *in;
3558 /* Copy string and check for compliance */
3559 from = SvPV(fromstr, len);
3560 if ((norm = is_an_int(from, len)) == NULL)
3561 croak("can compress only unsigned integer");
3563 New('w', result, len, char);
3567 *--in = div128(norm, &done) | 0x80;
3568 result[len - 1] &= 0x7F; /* clear continue bit */
3569 sv_catpvn(cat, in, (result + len) - in);
3570 SvREFCNT_dec(norm); /* free norm */
3572 else if (SvNOKp(fromstr)) {
3573 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3574 char *in = buf + sizeof(buf);
3577 double next = floor(adouble / 128);
3578 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3579 if (--in < buf) /* this cannot happen ;-) */
3580 croak ("Cannot compress integer");
3582 } while (adouble > 0);
3583 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3584 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3587 croak("Cannot compress non integer");
3593 aint = SvIV(fromstr);
3594 sv_catpvn(cat, (char*)&aint, sizeof(int));
3600 aulong = U_L(SvNV(fromstr));
3602 aulong = htonl(aulong);
3604 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3610 aulong = U_L(SvNV(fromstr));
3612 aulong = htovl(aulong);
3614 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3620 aulong = U_L(SvNV(fromstr));
3621 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3627 along = SvIV(fromstr);
3628 sv_catpvn(cat, (char*)&along, sizeof(I32));
3635 auquad = (unsigned Quad_t)SvIV(fromstr);
3636 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3642 aquad = (Quad_t)SvIV(fromstr);
3643 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3646 #endif /* HAS_QUAD */
3648 len = 1; /* assume SV is correct length */
3653 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3654 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3659 aptr = SvPV(fromstr, fromlen);
3660 SvGROW(cat, fromlen * 4 / 3);
3665 while (fromlen > 0) {
3672 doencodes(cat, aptr, todo);
3690 register I32 limit = POPi; /* note, negative is forever */
3693 register char *s = SvPV(sv, len);
3694 char *strend = s + len;
3695 register PMOP *pm = (PMOP*)POPs;
3699 I32 maxiters = (strend - s) + 10;
3702 I32 origlimit = limit;
3705 AV *oldstack = curstack;
3706 register REGEXP *rx = pm->op_pmregexp;
3708 I32 oldsave = savestack_ix;
3711 DIE("panic: do_split");
3713 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3714 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3716 if (pm->op_pmreplroot)
3717 ary = GvAVn((GV*)pm->op_pmreplroot);
3718 else if (gimme != G_ARRAY)
3722 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3726 for (i = AvFILL(ary); i >= 0; i--)
3727 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3731 /* temporarily switch stacks */
3732 SWITCHSTACK(curstack, ary);
3734 base = SP - stack_base;
3736 if (pm->op_pmflags & PMf_SKIPWHITE) {
3737 if (pm->op_pmflags & PMf_LOCALE) {
3738 while (isSPACE_LC(*s))
3746 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3748 multiline = pm->op_pmflags & PMf_MULTILINE;
3752 limit = maxiters + 2;
3753 if (pm->op_pmflags & PMf_WHITE) {
3756 while (m < strend &&
3757 !((pm->op_pmflags & PMf_LOCALE)
3758 ? isSPACE_LC(*m) : isSPACE(*m)))
3763 dstr = NEWSV(30, m-s);
3764 sv_setpvn(dstr, s, m-s);
3770 while (s < strend &&
3771 ((pm->op_pmflags & PMf_LOCALE)
3772 ? isSPACE_LC(*s) : isSPACE(*s)))
3776 else if (strEQ("^", rx->precomp)) {
3779 for (m = s; m < strend && *m != '\n'; m++) ;
3783 dstr = NEWSV(30, m-s);
3784 sv_setpvn(dstr, s, m-s);
3791 else if (pm->op_pmshort) {
3792 i = SvCUR(pm->op_pmshort);
3794 i = *SvPVX(pm->op_pmshort);
3797 for (m = s; m < strend && *m != i; m++) ;
3800 dstr = NEWSV(30, m-s);
3801 sv_setpvn(dstr, s, m-s);
3810 while (s < strend && --limit &&
3811 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3815 dstr = NEWSV(31, m-s);
3816 sv_setpvn(dstr, s, m-s);
3825 maxiters += (strend - s) * rx->nparens;
3826 while (s < strend && --limit &&
3827 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3829 TAINT_IF(rx->exec_tainted);
3831 && rx->subbase != orig) {
3836 strend = s + (strend - m);
3839 dstr = NEWSV(32, m-s);
3840 sv_setpvn(dstr, s, m-s);
3845 for (i = 1; i <= rx->nparens; i++) {
3849 dstr = NEWSV(33, m-s);
3850 sv_setpvn(dstr, s, m-s);
3853 dstr = NEWSV(33, 0);
3862 LEAVE_SCOPE(oldsave);
3863 iters = (SP - stack_base) - base;
3864 if (iters > maxiters)
3867 /* keep field after final delim? */
3868 if (s < strend || (iters && origlimit)) {
3869 dstr = NEWSV(34, strend-s);
3870 sv_setpvn(dstr, s, strend-s);
3876 else if (!origlimit) {
3877 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3881 SWITCHSTACK(ary, oldstack);
3882 if (gimme == G_ARRAY) {
3884 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3890 if (gimme == G_ARRAY)
3893 if (iters || !pm->op_pmreplroot) {