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 (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
579 SvIVX(TOPs) != IV_MIN)
582 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
593 sv_setsv(TARG, TOPs);
594 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
595 SvIVX(TOPs) != IV_MAX)
598 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
612 sv_setsv(TARG, TOPs);
613 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
614 SvIVX(TOPs) != IV_MIN)
617 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
626 /* Ordinary operators. */
630 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
633 SETn( pow( left, right) );
640 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
643 SETn( left * right );
650 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
654 DIE("Illegal division by zero");
656 /* insure that 20./5. == 4. */
661 if ((double)I_32(x) == x &&
662 (double)I_32(value) == value &&
663 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
670 value = POPn / value;
679 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
686 DIE("Illegal modulus zero");
689 value = (UV)value % uval;
691 value = (uval - ((UV)(-value - 1) % uval)) - 1;
700 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
702 register I32 count = POPi;
703 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
705 I32 items = SP - MARK;
717 repeatcpy((char*)(MARK + items), (char*)MARK,
718 items * sizeof(SV*), count - 1);
724 else { /* Note: mark already snarfed by pp_list */
729 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
730 if (SvREADONLY(tmpstr) && curcop != &compiling)
731 DIE("Can't x= to readonly value");
735 SvSetSV(TARG, tmpstr);
736 SvPV_force(TARG, len);
738 SvGROW(TARG, (count * len) + 1);
740 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
741 SvCUR(TARG) *= count;
743 (void)SvPOK_only(TARG);
746 sv_setsv(TARG, &sv_no);
755 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
758 SETn( left - right );
765 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
768 if (op->op_private & HINT_INTEGER)
769 SETi( left << right );
771 SETu( (UV)left << right );
778 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
781 if (op->op_private & HINT_INTEGER)
782 SETi( left >> right );
784 SETu( (UV)left >> right );
791 dSP; tryAMAGICbinSET(lt,0);
794 SETs((TOPn < value) ? &sv_yes : &sv_no);
801 dSP; tryAMAGICbinSET(gt,0);
804 SETs((TOPn > value) ? &sv_yes : &sv_no);
811 dSP; tryAMAGICbinSET(le,0);
814 SETs((TOPn <= value) ? &sv_yes : &sv_no);
821 dSP; tryAMAGICbinSET(ge,0);
824 SETs((TOPn >= value) ? &sv_yes : &sv_no);
831 dSP; tryAMAGICbinSET(ne,0);
834 SETs((TOPn != value) ? &sv_yes : &sv_no);
841 dSP; dTARGET; tryAMAGICbin(ncmp,0);
848 else if (left < right)
859 dSP; tryAMAGICbinSET(slt,0);
862 SETs( sv_cmp(left, right) < 0 ? &sv_yes : &sv_no );
869 dSP; tryAMAGICbinSET(sgt,0);
872 SETs( sv_cmp(left, right) > 0 ? &sv_yes : &sv_no );
879 dSP; tryAMAGICbinSET(sle,0);
882 SETs( sv_cmp(left, right) <= 0 ? &sv_yes : &sv_no );
889 dSP; tryAMAGICbinSET(sge,0);
892 SETs( sv_cmp(left, right) >= 0 ? &sv_yes : &sv_no );
899 dSP; tryAMAGICbinSET(sne,0);
902 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
909 dSP; dTARGET; tryAMAGICbin(scmp,0);
912 SETi( sv_cmp(left, right) );
919 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
922 if (SvNIOKp(left) || SvNIOKp(right)) {
923 UV value = SvIV(left) & SvIV(right);
924 if (op->op_private & HINT_INTEGER)
930 do_vop(op->op_type, TARG, left, right);
939 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
942 if (SvNIOKp(left) || SvNIOKp(right)) {
943 UV value = SvIV(left) ^ SvIV(right);
944 if (op->op_private & HINT_INTEGER)
950 do_vop(op->op_type, TARG, left, right);
959 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
962 if (SvNIOKp(left) || SvNIOKp(right)) {
963 UV value = SvIV(left) | SvIV(right);
964 if (op->op_private & HINT_INTEGER)
970 do_vop(op->op_type, TARG, left, right);
979 dSP; dTARGET; tryAMAGICun(neg);
984 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
986 else if (SvNIOKp(sv))
988 else if (SvPOKp(sv)) {
990 char *s = SvPV(sv, len);
991 if (isALPHA(*s) || *s == '_') {
992 sv_setpvn(TARG, "-", 1);
995 else if (*s == '+' || *s == '-') {
997 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1000 sv_setnv(TARG, -SvNV(sv));
1012 dSP; tryAMAGICunSET(not);
1013 #endif /* OVERLOAD */
1014 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1020 dSP; dTARGET; tryAMAGICun(compl);
1024 UV value = ~(UV)SvIV(sv);
1025 if (op->op_private & HINT_INTEGER)
1031 register char *tmps;
1032 register long *tmpl;
1037 tmps = SvPV_force(TARG, len);
1040 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1043 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1047 for ( ; anum > 0; anum--, tmps++)
1056 /* integer versions of some of the above */
1060 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1063 SETi( left * right );
1070 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1074 DIE("Illegal division by zero");
1075 value = POPi / value;
1083 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1086 SETi( left % right );
1093 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1096 SETi( left + right );
1103 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1106 SETi( left - right );
1113 dSP; tryAMAGICbinSET(lt,0);
1116 SETs((left < right) ? &sv_yes : &sv_no);
1123 dSP; tryAMAGICbinSET(gt,0);
1126 SETs((left > right) ? &sv_yes : &sv_no);
1133 dSP; tryAMAGICbinSET(le,0);
1136 SETs((left <= right) ? &sv_yes : &sv_no);
1143 dSP; tryAMAGICbinSET(ge,0);
1146 SETs((left >= right) ? &sv_yes : &sv_no);
1153 dSP; tryAMAGICbinSET(eq,0);
1156 SETs((left == right) ? &sv_yes : &sv_no);
1163 dSP; tryAMAGICbinSET(ne,0);
1166 SETs((left != right) ? &sv_yes : &sv_no);
1173 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1180 else if (left < right)
1191 dSP; dTARGET; tryAMAGICun(neg);
1196 /* High falutin' math. */
1200 dSP; dTARGET; tryAMAGICbin(atan2,0);
1203 SETn(atan2(left, right));
1210 dSP; dTARGET; tryAMAGICun(sin);
1222 dSP; dTARGET; tryAMAGICun(cos);
1243 value = rand() * value / 2147483648.0;
1246 value = rand() * value / 65536.0;
1249 value = rand() * value / 32768.0;
1251 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1266 # include <starlet.h>
1267 unsigned int when[2];
1268 _ckvmssts(sys$gettim(when));
1269 anum = when[0] ^ when[1];
1271 # if defined(I_SYS_TIME) && !defined(PLAN9)
1272 struct timeval when;
1273 gettimeofday(&when,(struct timezone *) 0);
1274 anum = when.tv_sec ^ when.tv_usec;
1281 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1282 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1283 /* What is a good hashing algorithm here? */
1284 anum ^= ( ( 269 * (U32)getpid())
1285 ^ (26107 * (U32)&when)
1286 ^ (73819 * (U32)stack_sp));
1298 dSP; dTARGET; tryAMAGICun(exp);
1310 dSP; dTARGET; tryAMAGICun(log);
1315 DIE("Can't take log of %g", value);
1324 dSP; dTARGET; tryAMAGICun(sqrt);
1329 DIE("Can't take sqrt of %g", value);
1330 value = sqrt(value);
1342 (void)modf(value, &value);
1344 (void)modf(-value, &value);
1353 dSP; dTARGET; tryAMAGICun(abs);
1373 XPUSHu(scan_hex(tmps, 99, &argtype));
1385 while (*tmps && isSPACE(*tmps))
1390 value = scan_hex(++tmps, 99, &argtype);
1392 value = scan_oct(tmps, 99, &argtype);
1402 SETi( sv_len(TOPs) );
1414 I32 lvalue = op->op_flags & OPf_MOD;
1416 I32 arybase = curcop->cop_arybase;
1420 pos = POPi - arybase;
1422 tmps = SvPV(sv, curlen);
1424 pos += curlen + arybase;
1425 if (pos < 0 || pos > curlen) {
1426 if (dowarn || lvalue)
1427 warn("substr outside of string");
1434 len += curlen - pos;
1439 rem = curlen - pos; /* rem=how many bytes left*/
1442 sv_setpvn(TARG, tmps, rem);
1443 if (lvalue) { /* it's an lvalue! */
1444 if (!SvGMAGICAL(sv)) {
1448 warn("Attempt to use reference as lvalue in substr");
1450 if (SvOK(sv)) /* is it defined ? */
1451 (void)SvPOK_only(sv);
1453 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1455 if (SvTYPE(TARG) < SVt_PVLV) {
1456 sv_upgrade(TARG, SVt_PVLV);
1457 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1462 LvTARGOFF(TARG) = pos;
1463 LvTARGLEN(TARG) = rem;
1466 PUSHs(TARG); /* avoid SvSETMAGIC here */
1473 register I32 size = POPi;
1474 register I32 offset = POPi;
1475 register SV *src = POPs;
1476 I32 lvalue = op->op_flags & OPf_MOD;
1478 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1479 unsigned long retnum;
1482 offset *= size; /* turn into bit offset */
1483 len = (offset + size + 7) / 8;
1484 if (offset < 0 || size < 1)
1487 if (lvalue) { /* it's an lvalue! */
1488 if (SvTYPE(TARG) < SVt_PVLV) {
1489 sv_upgrade(TARG, SVt_PVLV);
1490 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1495 LvTARGOFF(TARG) = offset;
1496 LvTARGLEN(TARG) = size;
1504 if (offset >= srclen)
1507 retnum = (unsigned long) s[offset] << 8;
1509 else if (size == 32) {
1510 if (offset >= srclen)
1512 else if (offset + 1 >= srclen)
1513 retnum = (unsigned long) s[offset] << 24;
1514 else if (offset + 2 >= srclen)
1515 retnum = ((unsigned long) s[offset] << 24) +
1516 ((unsigned long) s[offset + 1] << 16);
1518 retnum = ((unsigned long) s[offset] << 24) +
1519 ((unsigned long) s[offset + 1] << 16) +
1520 (s[offset + 2] << 8);
1525 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1530 else if (size == 16)
1531 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1532 else if (size == 32)
1533 retnum = ((unsigned long) s[offset] << 24) +
1534 ((unsigned long) s[offset + 1] << 16) +
1535 (s[offset + 2] << 8) + s[offset+3];
1539 sv_setiv(TARG, (I32)retnum);
1554 I32 arybase = curcop->cop_arybase;
1559 offset = POPi - arybase;
1562 tmps = SvPV(big, biglen);
1565 else if (offset > biglen)
1567 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1568 (unsigned char*)tmps + biglen, little)))
1569 retval = -1 + arybase;
1571 retval = tmps2 - tmps + arybase;
1588 I32 arybase = curcop->cop_arybase;
1594 tmps2 = SvPV(little, llen);
1595 tmps = SvPV(big, blen);
1599 offset = SvIV(offstr) - arybase + llen;
1602 else if (offset > blen)
1604 if (!(tmps2 = rninstr(tmps, tmps + offset,
1605 tmps2, tmps2 + llen)))
1606 retval = -1 + arybase;
1608 retval = tmps2 - tmps + arybase;
1615 dSP; dMARK; dORIGMARK; dTARGET;
1616 do_sprintf(TARG, SP-MARK, MARK+1);
1630 value = (I32) (*tmps & 255);
1635 value = (I32) (anum & 255);
1646 (void)SvUPGRADE(TARG,SVt_PV);
1652 (void)SvPOK_only(TARG);
1659 dSP; dTARGET; dPOPTOPssrl;
1661 char *tmps = SvPV(left, na);
1663 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1665 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1669 "The crypt() function is unimplemented due to excessive paranoia.");
1681 if (!SvPADTMP(sv)) {
1687 s = SvPV_force(sv, na);
1700 if (!SvPADTMP(sv)) {
1706 s = SvPV_force(sv, na);
1719 register char *send;
1722 if (!SvPADTMP(sv)) {
1728 s = SvPV_force(sv, len);
1743 register char *send;
1746 if (!SvPADTMP(sv)) {
1752 s = SvPV_force(sv, len);
1767 register char *s = SvPV(sv,len);
1771 (void)SvUPGRADE(TARG, SVt_PV);
1772 SvGROW(TARG, (len * 2) + 1);
1780 SvCUR_set(TARG, d - SvPVX(TARG));
1781 (void)SvPOK_only(TARG);
1784 sv_setpvn(TARG, s, len);
1793 dSP; dMARK; dORIGMARK;
1795 register AV* av = (AV*)POPs;
1796 register I32 lval = op->op_flags & OPf_MOD;
1797 I32 arybase = curcop->cop_arybase;
1800 if (SvTYPE(av) == SVt_PVAV) {
1801 if (lval && op->op_private & OPpLVAL_INTRO) {
1803 for (svp = mark + 1; svp <= sp; svp++) {
1808 if (max > AvMAX(av))
1811 while (++MARK <= SP) {
1812 elem = SvIVx(*MARK);
1816 svp = av_fetch(av, elem, lval);
1818 if (!svp || *svp == &sv_undef)
1819 DIE(no_aelem, elem);
1820 if (op->op_private & OPpLVAL_INTRO)
1823 *MARK = svp ? *svp : &sv_undef;
1826 if (GIMME != G_ARRAY) {
1834 /* Associative arrays. */
1839 HV *hash = (HV*)POPs;
1843 entry = hv_iternext(hash); /* might clobber stack_sp */
1848 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1849 if (GIMME == G_ARRAY) {
1851 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1856 else if (GIMME == G_SCALAR)
1879 if (SvTYPE(hv) != SVt_PVHV) {
1880 DIE("Not a HASH reference");
1882 sv = hv_delete_ent(hv, tmpsv,
1883 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1896 if (SvTYPE(hv) != SVt_PVHV) {
1897 DIE("Not a HASH reference");
1899 if (hv_exists_ent(hv, tmpsv, 0))
1906 dSP; dMARK; dORIGMARK;
1908 register HV *hv = (HV*)POPs;
1909 register I32 lval = op->op_flags & OPf_MOD;
1911 if (SvTYPE(hv) == SVt_PVHV) {
1912 while (++MARK <= SP) {
1915 he = hv_fetch_ent(hv, keysv, lval, 0);
1917 if (!he || HeVAL(he) == &sv_undef)
1918 DIE(no_helem, SvPV(keysv, na));
1919 if (op->op_private & OPpLVAL_INTRO)
1920 save_svref(&HeVAL(he));
1922 *MARK = he ? HeVAL(he) : &sv_undef;
1925 if (GIMME != G_ARRAY) {
1933 /* List operators. */
1938 if (GIMME != G_ARRAY) {
1940 *MARK = *SP; /* unwanted list, return last item */
1951 SV **lastrelem = stack_sp;
1952 SV **lastlelem = stack_base + POPMARK;
1953 SV **firstlelem = stack_base + POPMARK + 1;
1954 register SV **firstrelem = lastlelem + 1;
1955 I32 arybase = curcop->cop_arybase;
1956 I32 lval = op->op_flags & OPf_MOD;
1957 I32 is_something_there = lval;
1959 register I32 max = lastrelem - lastlelem;
1960 register SV **lelem;
1963 if (GIMME != G_ARRAY) {
1964 ix = SvIVx(*lastlelem);
1969 if (ix < 0 || ix >= max)
1970 *firstlelem = &sv_undef;
1972 *firstlelem = firstrelem[ix];
1978 SP = firstlelem - 1;
1982 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
1988 else if (!(*lelem = firstrelem[ix]))
1993 if (ix >= max || !(*lelem = firstrelem[ix]))
1996 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
1997 is_something_there = TRUE;
1999 if (is_something_there)
2002 SP = firstlelem - 1;
2009 I32 items = SP - MARK;
2011 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2017 dSP; dMARK; dORIGMARK;
2019 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2023 SV *val = NEWSV(46, 0);
2025 sv_setsv(val, *++MARK);
2027 warn("Odd number of elements in hash list");
2028 (void)hv_store_ent(hv,key,val,0);
2037 dSP; dMARK; dORIGMARK;
2038 register AV *ary = (AV*)*++MARK;
2042 register I32 offset;
2043 register I32 length;
2052 offset = SvIVx(*MARK);
2054 offset += AvFILL(ary) + 1;
2056 offset -= curcop->cop_arybase;
2058 length = SvIVx(*MARK++);
2063 length = AvMAX(ary) + 1; /* close enough to infinity */
2067 length = AvMAX(ary) + 1;
2075 if (offset > AvFILL(ary) + 1)
2076 offset = AvFILL(ary) + 1;
2077 after = AvFILL(ary) + 1 - (offset + length);
2078 if (after < 0) { /* not that much array */
2079 length += after; /* offset+length now in array */
2085 /* At this point, MARK .. SP-1 is our new LIST */
2088 diff = newlen - length;
2090 if (diff < 0) { /* shrinking the area */
2092 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2093 Copy(MARK, tmparyval, newlen, SV*);
2096 MARK = ORIGMARK + 1;
2097 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2098 MEXTEND(MARK, length);
2099 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2101 for (i = length, dst = MARK; i; i--)
2102 sv_2mortal(*dst++); /* free them eventualy */
2107 *MARK = AvARRAY(ary)[offset+length-1];
2110 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2111 SvREFCNT_dec(*dst++); /* free them now */
2114 AvFILL(ary) += diff;
2116 /* pull up or down? */
2118 if (offset < after) { /* easier to pull up */
2119 if (offset) { /* esp. if nothing to pull */
2120 src = &AvARRAY(ary)[offset-1];
2121 dst = src - diff; /* diff is negative */
2122 for (i = offset; i > 0; i--) /* can't trust Copy */
2126 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2130 if (after) { /* anything to pull down? */
2131 src = AvARRAY(ary) + offset + length;
2132 dst = src + diff; /* diff is negative */
2133 Move(src, dst, after, SV*);
2135 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2136 /* avoid later double free */
2140 dst[--i] = &sv_undef;
2143 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2145 *dst = NEWSV(46, 0);
2146 sv_setsv(*dst++, *src++);
2148 Safefree(tmparyval);
2151 else { /* no, expanding (or same) */
2153 New(452, tmparyval, length, SV*); /* so remember deletion */
2154 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2157 if (diff > 0) { /* expanding */
2159 /* push up or down? */
2161 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2165 Move(src, dst, offset, SV*);
2167 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2169 AvFILL(ary) += diff;
2172 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2173 av_extend(ary, AvFILL(ary) + diff);
2174 AvFILL(ary) += diff;
2177 dst = AvARRAY(ary) + AvFILL(ary);
2179 for (i = after; i; i--) {
2186 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2187 *dst = NEWSV(46, 0);
2188 sv_setsv(*dst++, *src++);
2190 MARK = ORIGMARK + 1;
2191 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2193 Copy(tmparyval, MARK, length, SV*);
2195 for (i = length, dst = MARK; i; i--)
2196 sv_2mortal(*dst++); /* free them eventualy */
2198 Safefree(tmparyval);
2202 else if (length--) {
2203 *MARK = tmparyval[length];
2206 while (length-- > 0)
2207 SvREFCNT_dec(tmparyval[length]);
2209 Safefree(tmparyval);
2220 dSP; dMARK; dORIGMARK; dTARGET;
2221 register AV *ary = (AV*)*++MARK;
2222 register SV *sv = &sv_undef;
2224 for (++MARK; MARK <= SP; MARK++) {
2227 sv_setsv(sv, *MARK);
2231 PUSHi( AvFILL(ary) + 1 );
2239 SV *sv = av_pop(av);
2240 if (sv != &sv_undef && AvREAL(av))
2241 (void)sv_2mortal(sv);
2250 SV *sv = av_shift(av);
2254 if (sv != &sv_undef && AvREAL(av))
2255 (void)sv_2mortal(sv);
2262 dSP; dMARK; dORIGMARK; dTARGET;
2263 register AV *ary = (AV*)*++MARK;
2267 av_unshift(ary, SP - MARK);
2270 sv_setsv(sv, *++MARK);
2271 (void)av_store(ary, i++, sv);
2275 PUSHi( AvFILL(ary) + 1 );
2285 if (GIMME == G_ARRAY) {
2296 register char *down;
2302 do_join(TARG, &sv_no, MARK, SP);
2304 sv_setsv(TARG, *SP);
2305 up = SvPV_force(TARG, len);
2307 down = SvPVX(TARG) + len - 1;
2313 (void)SvPOK_only(TARG);
2327 char *s = SvPV(sv, len);
2331 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2332 SV *new = newSVpv("0000000000", 10);
2335 SvREFCNT_dec(sv); /* free old sv */
2340 while (!*t) /* trailing '\0'? */
2343 i = ((*t - '0') << 7) + m;
2344 *(t--) = '0' + (i % 10);
2350 /* Explosives and implosives. */
2359 register char *pat = SvPV(left, llen);
2360 register char *s = SvPV(right, rlen);
2361 char *strend = s + rlen;
2363 register char *patend = pat + llen;
2368 /* These must not be in registers: */
2379 unsigned Quad_t auquad;
2385 register U32 culong;
2387 static char* bitcount = 0;
2389 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2391 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2392 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2394 while (isDIGIT(*patend) || *patend == '*')
2400 while (pat < patend) {
2405 else if (*pat == '*') {
2406 len = strend - strbeg; /* long enough */
2409 else if (isDIGIT(*pat)) {
2411 while (isDIGIT(*pat))
2412 len = (len * 10) + (*pat++ - '0');
2415 len = (datumtype != '@');
2420 if (len == 1 && pat[-1] != '1')
2429 if (len > strend - strbeg)
2430 DIE("@ outside of string");
2434 if (len > s - strbeg)
2435 DIE("X outside of string");
2439 if (len > strend - s)
2440 DIE("x outside of string");
2445 if (len > strend - s)
2448 goto uchar_checksum;
2449 sv = NEWSV(35, len);
2450 sv_setpvn(sv, s, len);
2452 if (datumtype == 'A') {
2453 aptr = s; /* borrow register */
2454 s = SvPVX(sv) + len - 1;
2455 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2458 SvCUR_set(sv, s - SvPVX(sv));
2459 s = aptr; /* unborrow register */
2461 XPUSHs(sv_2mortal(sv));
2465 if (pat[-1] == '*' || len > (strend - s) * 8)
2466 len = (strend - s) * 8;
2469 Newz(601, bitcount, 256, char);
2470 for (bits = 1; bits < 256; bits++) {
2471 if (bits & 1) bitcount[bits]++;
2472 if (bits & 2) bitcount[bits]++;
2473 if (bits & 4) bitcount[bits]++;
2474 if (bits & 8) bitcount[bits]++;
2475 if (bits & 16) bitcount[bits]++;
2476 if (bits & 32) bitcount[bits]++;
2477 if (bits & 64) bitcount[bits]++;
2478 if (bits & 128) bitcount[bits]++;
2482 culong += bitcount[*(unsigned char*)s++];
2487 if (datumtype == 'b') {
2489 if (bits & 1) culong++;
2495 if (bits & 128) culong++;
2502 sv = NEWSV(35, len + 1);
2505 aptr = pat; /* borrow register */
2507 if (datumtype == 'b') {
2509 for (len = 0; len < aint; len++) {
2510 if (len & 7) /*SUPPRESS 595*/
2514 *pat++ = '0' + (bits & 1);
2519 for (len = 0; len < aint; len++) {
2524 *pat++ = '0' + ((bits & 128) != 0);
2528 pat = aptr; /* unborrow register */
2529 XPUSHs(sv_2mortal(sv));
2533 if (pat[-1] == '*' || len > (strend - s) * 2)
2534 len = (strend - s) * 2;
2535 sv = NEWSV(35, len + 1);
2538 aptr = pat; /* borrow register */
2540 if (datumtype == 'h') {
2542 for (len = 0; len < aint; len++) {
2547 *pat++ = hexdigit[bits & 15];
2552 for (len = 0; len < aint; len++) {
2557 *pat++ = hexdigit[(bits >> 4) & 15];
2561 pat = aptr; /* unborrow register */
2562 XPUSHs(sv_2mortal(sv));
2565 if (len > strend - s)
2570 if (aint >= 128) /* fake up signed chars */
2579 if (aint >= 128) /* fake up signed chars */
2582 sv_setiv(sv, (I32)aint);
2583 PUSHs(sv_2mortal(sv));
2588 if (len > strend - s)
2602 sv_setiv(sv, (I32)auint);
2603 PUSHs(sv_2mortal(sv));
2608 along = (strend - s) / sizeof(I16);
2613 Copy(s, &ashort, 1, I16);
2621 Copy(s, &ashort, 1, I16);
2624 sv_setiv(sv, (I32)ashort);
2625 PUSHs(sv_2mortal(sv));
2632 along = (strend - s) / sizeof(U16);
2637 Copy(s, &aushort, 1, U16);
2640 if (datumtype == 'n')
2641 aushort = ntohs(aushort);
2644 if (datumtype == 'v')
2645 aushort = vtohs(aushort);
2653 Copy(s, &aushort, 1, U16);
2657 if (datumtype == 'n')
2658 aushort = ntohs(aushort);
2661 if (datumtype == 'v')
2662 aushort = vtohs(aushort);
2664 sv_setiv(sv, (I32)aushort);
2665 PUSHs(sv_2mortal(sv));
2670 along = (strend - s) / sizeof(int);
2675 Copy(s, &aint, 1, int);
2678 cdouble += (double)aint;
2686 Copy(s, &aint, 1, int);
2689 sv_setiv(sv, (I32)aint);
2690 PUSHs(sv_2mortal(sv));
2695 along = (strend - s) / sizeof(unsigned int);
2700 Copy(s, &auint, 1, unsigned int);
2701 s += sizeof(unsigned int);
2703 cdouble += (double)auint;
2711 Copy(s, &auint, 1, unsigned int);
2712 s += sizeof(unsigned int);
2714 if (auint <= I32_MAX)
2715 sv_setiv(sv, (I32)auint);
2717 sv_setnv(sv, (double)auint);
2718 PUSHs(sv_2mortal(sv));
2723 along = (strend - s) / sizeof(I32);
2728 Copy(s, &along, 1, I32);
2731 cdouble += (double)along;
2739 Copy(s, &along, 1, I32);
2742 sv_setiv(sv, (I32)along);
2743 PUSHs(sv_2mortal(sv));
2750 along = (strend - s) / sizeof(U32);
2755 Copy(s, &aulong, 1, U32);
2758 if (datumtype == 'N')
2759 aulong = ntohl(aulong);
2762 if (datumtype == 'V')
2763 aulong = vtohl(aulong);
2766 cdouble += (double)aulong;
2774 Copy(s, &aulong, 1, U32);
2778 if (datumtype == 'N')
2779 aulong = ntohl(aulong);
2782 if (datumtype == 'V')
2783 aulong = vtohl(aulong);
2785 sv_setnv(sv, (double)aulong);
2786 PUSHs(sv_2mortal(sv));
2791 along = (strend - s) / sizeof(char*);
2796 if (sizeof(char*) > strend - s)
2799 Copy(s, &aptr, 1, char*);
2805 PUSHs(sv_2mortal(sv));
2809 along = (strend - s) / sizeof(char);
2820 croak("Unterminated compressed integer");
2825 auint = (auint << 7) | (*s & 0x7f);
2828 sv_setiv(sv, (I32) auint);
2829 PUSHs(sv_2mortal(sv));
2833 } else if (++bytes >= sizeof(auint)) { /* promote to string */
2836 (void) sprintf(zero, "%010ld", auint);
2837 sv = newSVpv(zero, 10);
2840 sv = mul128(sv, (U8) (*(++s) & 0x7f));
2842 croak("Unterminated compressed integer");
2845 /* remove leading '0's */
2847 char *s = SvPV(sv, na);
2853 /* overlapping copy !! */
2854 sv_setpvn(sv, s, na);
2856 PUSHs(sv_2mortal(sv));
2867 if (sizeof(char*) > strend - s)
2870 Copy(s, &aptr, 1, char*);
2875 sv_setpvn(sv, aptr, len);
2876 PUSHs(sv_2mortal(sv));
2882 if (s + sizeof(Quad_t) > strend)
2885 Copy(s, &aquad, 1, Quad_t);
2886 s += sizeof(Quad_t);
2889 sv_setiv(sv, (IV)aquad);
2890 PUSHs(sv_2mortal(sv));
2896 if (s + sizeof(unsigned Quad_t) > strend)
2899 Copy(s, &auquad, 1, unsigned Quad_t);
2900 s += sizeof(unsigned Quad_t);
2903 sv_setiv(sv, (IV)auquad);
2904 PUSHs(sv_2mortal(sv));
2908 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2911 along = (strend - s) / sizeof(float);
2916 Copy(s, &afloat, 1, float);
2924 Copy(s, &afloat, 1, float);
2927 sv_setnv(sv, (double)afloat);
2928 PUSHs(sv_2mortal(sv));
2934 along = (strend - s) / sizeof(double);
2939 Copy(s, &adouble, 1, double);
2940 s += sizeof(double);
2947 Copy(s, &adouble, 1, double);
2948 s += sizeof(double);
2950 sv_setnv(sv, (double)adouble);
2951 PUSHs(sv_2mortal(sv));
2956 along = (strend - s) * 3 / 4;
2957 sv = NEWSV(42, along);
2960 while (s < strend && *s > ' ' && *s < 'a') {
2965 len = (*s++ - ' ') & 077;
2967 if (s < strend && *s >= ' ')
2968 a = (*s++ - ' ') & 077;
2971 if (s < strend && *s >= ' ')
2972 b = (*s++ - ' ') & 077;
2975 if (s < strend && *s >= ' ')
2976 c = (*s++ - ' ') & 077;
2979 if (s < strend && *s >= ' ')
2980 d = (*s++ - ' ') & 077;
2983 hunk[0] = a << 2 | b >> 4;
2984 hunk[1] = b << 4 | c >> 2;
2985 hunk[2] = c << 6 | d;
2986 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
2991 else if (s[1] == '\n') /* possible checksum byte */
2994 XPUSHs(sv_2mortal(sv));
2999 if (strchr("fFdD", datumtype) ||
3000 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3004 while (checksum >= 16) {
3008 while (checksum >= 4) {
3014 along = (1 << checksum) - 1;
3015 while (cdouble < 0.0)
3017 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3018 sv_setnv(sv, cdouble);
3021 if (checksum < 32) {
3022 along = (1 << checksum) - 1;
3023 culong &= (U32)along;
3025 sv_setnv(sv, (double)culong);
3027 XPUSHs(sv_2mortal(sv));
3035 doencodes(sv, s, len)
3043 sv_catpvn(sv, hunk, 1);
3046 hunk[0] = ' ' + (077 & (*s >> 2));
3047 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3048 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3049 hunk[3] = ' ' + (077 & (s[2] & 077));
3050 sv_catpvn(sv, hunk, 4);
3054 for (s = SvPVX(sv); *s; s++) {
3058 sv_catpvn(sv, "\n", 1);
3066 SV *result = newSVpv("", l);
3067 char *result_c = SvPV(result, na); /* convenience */
3068 char *out = result_c;
3078 SvREFCNT_dec(result);
3101 SvREFCNT_dec(result);
3107 SvCUR_set(result, out - result_c);
3113 SV *pnum; /* must be '\0' terminated */
3117 char *s = SvPV(pnum, len);
3126 i = m * 10 + (*t - '0');
3128 r = (i >> 7); /* r < 10 */
3135 SvCUR_set(pnum, (STRLEN) (t - s));
3142 dSP; dMARK; dORIGMARK; dTARGET;
3143 register SV *cat = TARG;
3146 register char *pat = SvPVx(*++MARK, fromlen);
3147 register char *patend = pat + fromlen;
3152 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3153 static char *space10 = " ";
3155 /* These must not be in registers: */
3164 unsigned Quad_t auquad;
3172 sv_setpvn(cat, "", 0);
3173 while (pat < patend) {
3174 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3177 len = strchr("@Xxu", datumtype) ? 0 : items;
3180 else if (isDIGIT(*pat)) {
3182 while (isDIGIT(*pat))
3183 len = (len * 10) + (*pat++ - '0');
3191 DIE("%% may only be used in unpack");
3202 if (SvCUR(cat) < len)
3203 DIE("X outside of string");
3210 sv_catpvn(cat, null10, 10);
3213 sv_catpvn(cat, null10, len);
3218 aptr = SvPV(fromstr, fromlen);
3222 sv_catpvn(cat, aptr, len);
3224 sv_catpvn(cat, aptr, fromlen);
3226 if (datumtype == 'A') {
3228 sv_catpvn(cat, space10, 10);
3231 sv_catpvn(cat, space10, len);
3235 sv_catpvn(cat, null10, 10);
3238 sv_catpvn(cat, null10, len);
3245 char *savepat = pat;
3250 aptr = SvPV(fromstr, fromlen);
3255 SvCUR(cat) += (len+7)/8;
3256 SvGROW(cat, SvCUR(cat) + 1);
3257 aptr = SvPVX(cat) + aint;
3262 if (datumtype == 'B') {
3263 for (len = 0; len++ < aint;) {
3264 items |= *pat++ & 1;
3268 *aptr++ = items & 0xff;
3274 for (len = 0; len++ < aint;) {
3280 *aptr++ = items & 0xff;
3286 if (datumtype == 'B')
3287 items <<= 7 - (aint & 7);
3289 items >>= 7 - (aint & 7);
3290 *aptr++ = items & 0xff;
3292 pat = SvPVX(cat) + SvCUR(cat);
3303 char *savepat = pat;
3308 aptr = SvPV(fromstr, fromlen);
3313 SvCUR(cat) += (len+1)/2;
3314 SvGROW(cat, SvCUR(cat) + 1);
3315 aptr = SvPVX(cat) + aint;
3320 if (datumtype == 'H') {
3321 for (len = 0; len++ < aint;) {
3323 items |= ((*pat++ & 15) + 9) & 15;
3325 items |= *pat++ & 15;
3329 *aptr++ = items & 0xff;
3335 for (len = 0; len++ < aint;) {
3337 items |= (((*pat++ & 15) + 9) & 15) << 4;
3339 items |= (*pat++ & 15) << 4;
3343 *aptr++ = items & 0xff;
3349 *aptr++ = items & 0xff;
3350 pat = SvPVX(cat) + SvCUR(cat);
3362 aint = SvIV(fromstr);
3364 sv_catpvn(cat, &achar, sizeof(char));
3367 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3372 afloat = (float)SvNV(fromstr);
3373 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3380 adouble = (double)SvNV(fromstr);
3381 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3387 ashort = (I16)SvIV(fromstr);
3389 ashort = htons(ashort);
3391 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3397 ashort = (I16)SvIV(fromstr);
3399 ashort = htovs(ashort);
3401 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3408 ashort = (I16)SvIV(fromstr);
3409 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3415 auint = U_I(SvNV(fromstr));
3416 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3422 adouble = floor((double)SvNV(fromstr));
3424 if (adouble <= PERL_ULONG_MAX) { /* we can use integers */
3425 unsigned char buf[5]; /* buffer for compressed int */
3426 unsigned char *in = buf + 4;
3428 auint = U_I(adouble);
3431 *(in--) = (unsigned char) ((auint & 0x7f) | 0x80);
3434 buf[4] &= 0x7f; /* clear continue bit */
3435 sv_catpvn(cat, (char *) in + 1, buf + 4 - in);
3436 } else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3441 /* Copy string and check for compliance */
3442 from = SvPV(fromstr, len);
3443 if ((norm = is_an_int(from, len)) == NULL) {
3444 croak("can compress only unsigned integer");
3449 New('w', result, len, char);
3452 U8 digit = div128(norm, &done);
3454 *(--in) = digit | 0x80;
3456 result[len - 1] &= 0x7F;
3457 sv_catpvn(cat, in, result + len - in);
3458 SvREFCNT_dec(norm); /* free norm */
3460 } else if (SvNOKp(fromstr)) {
3461 I8 msize = sizeof(double) * 2; /* 8/7 <= 2 */
3462 unsigned char buf[sizeof(double) * 2];
3463 unsigned char *in = buf + msize -1;
3466 croak("Cannot compress negative numbers");
3469 double next = adouble/128;
3471 *in = (unsigned char) (adouble - floor(next)*128);
3472 *in |= 0x80; /* set continue bit */
3473 if (--in < buf) { /* this cannot happen ;-) */
3474 croak ("Cannot compress integer");
3477 } while (floor(adouble)); /* floor() not necessary? */
3478 buf[msize-1] &= 0x7f; /* clear continue bit */
3479 sv_catpvn(cat, (char*) in+1, buf+msize-in-1);
3481 croak("Cannot compress non integer");
3488 aint = SvIV(fromstr);
3489 sv_catpvn(cat, (char*)&aint, sizeof(int));
3495 aulong = U_L(SvNV(fromstr));
3497 aulong = htonl(aulong);
3499 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3505 aulong = U_L(SvNV(fromstr));
3507 aulong = htovl(aulong);
3509 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3515 aulong = U_L(SvNV(fromstr));
3516 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3522 along = SvIV(fromstr);
3523 sv_catpvn(cat, (char*)&along, sizeof(I32));
3530 auquad = (unsigned Quad_t)SvIV(fromstr);
3531 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3537 aquad = (Quad_t)SvIV(fromstr);
3538 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3541 #endif /* HAS_QUAD */
3543 len = 1; /* assume SV is correct length */
3548 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3549 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3554 aptr = SvPV(fromstr, fromlen);
3555 SvGROW(cat, fromlen * 4 / 3);
3560 while (fromlen > 0) {
3567 doencodes(cat, aptr, todo);
3585 register I32 limit = POPi; /* note, negative is forever */
3588 register char *s = SvPV(sv, len);
3589 char *strend = s + len;
3590 register PMOP *pm = (PMOP*)POPs;
3594 I32 maxiters = (strend - s) + 10;
3597 I32 origlimit = limit;
3600 AV *oldstack = curstack;
3601 register REGEXP *rx = pm->op_pmregexp;
3603 I32 oldsave = savestack_ix;
3606 DIE("panic: do_split");
3607 if (pm->op_pmreplroot)
3608 ary = GvAVn((GV*)pm->op_pmreplroot);
3609 else if (gimme != G_ARRAY)
3613 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3617 for (i = AvFILL(ary); i >= 0; i--)
3618 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3622 /* temporarily switch stacks */
3623 SWITCHSTACK(curstack, ary);
3625 base = SP - stack_base;
3627 if (pm->op_pmflags & PMf_SKIPWHITE) {
3631 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3633 multiline = pm->op_pmflags & PMf_MULTILINE;
3637 limit = maxiters + 2;
3638 if (pm->op_pmflags & PMf_WHITE) {
3641 for (m = s; m < strend && !isSPACE(*m); m++) ;
3644 dstr = NEWSV(30, m-s);
3645 sv_setpvn(dstr, s, m-s);
3650 for (s = m + 1; s < strend && isSPACE(*s); s++) ;
3653 else if (strEQ("^", rx->precomp)) {
3656 for (m = s; m < strend && *m != '\n'; m++) ;
3660 dstr = NEWSV(30, m-s);
3661 sv_setpvn(dstr, s, m-s);
3668 else if (pm->op_pmshort) {
3669 i = SvCUR(pm->op_pmshort);
3671 I32 fold = (pm->op_pmflags & PMf_FOLD);
3672 i = *SvPVX(pm->op_pmshort);
3673 if (fold && isUPPER(i))
3678 m < strend && *m != i &&
3679 (!isUPPER(*m) || toLOWER(*m) != i);
3680 m++) /*SUPPRESS 530*/
3683 else /*SUPPRESS 530*/
3684 for (m = s; m < strend && *m != i; m++) ;
3687 dstr = NEWSV(30, m-s);
3688 sv_setpvn(dstr, s, m-s);
3697 while (s < strend && --limit &&
3698 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3702 dstr = NEWSV(31, m-s);
3703 sv_setpvn(dstr, s, m-s);
3712 maxiters += (strend - s) * rx->nparens;
3713 while (s < strend && --limit &&
3714 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE) ) {
3716 && rx->subbase != orig) {
3721 strend = s + (strend - m);
3724 dstr = NEWSV(32, m-s);
3725 sv_setpvn(dstr, s, m-s);
3730 for (i = 1; i <= rx->nparens; i++) {
3734 dstr = NEWSV(33, m-s);
3735 sv_setpvn(dstr, s, m-s);
3738 dstr = NEWSV(33, 0);
3747 LEAVE_SCOPE(oldsave);
3748 iters = (SP - stack_base) - base;
3749 if (iters > maxiters)
3752 /* keep field after final delim? */
3753 if (s < strend || (iters && origlimit)) {
3754 dstr = NEWSV(34, strend-s);
3755 sv_setpvn(dstr, s, strend-s);
3761 else if (!origlimit) {
3762 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3766 SWITCHSTACK(ary, oldstack);
3767 if (gimme == G_ARRAY) {
3769 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3775 if (gimme == G_ARRAY)
3778 if (iters || !pm->op_pmreplroot) {