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) {
316 EXTEND_MORTAL(SP - MARK);
320 sv_upgrade(rv, SVt_RV);
325 (void)SvREFCNT_inc(sv);
342 if (sv && SvGMAGICAL(sv))
345 if (!sv || !SvROK(sv))
349 pv = sv_reftype(sv,TRUE);
350 PUSHp(pv, strlen(pv));
360 stash = curcop->cop_stash;
362 stash = gv_stashsv(POPs, TRUE);
364 (void)sv_bless(TOPs, stash);
368 /* Pattern matching */
373 register unsigned char *s;
376 register I32 *sfirst;
381 s = (unsigned char*)(SvPV(sv, len));
383 if (sv == lastscream)
387 SvSCREAM_off(lastscream);
388 SvREFCNT_dec(lastscream);
390 lastscream = SvREFCNT_inc(sv);
396 if (pos > maxscream) {
398 maxscream = pos + 80;
399 New(301, screamfirst, 256, I32);
400 New(302, screamnext, maxscream, I32);
403 maxscream = pos + pos / 4;
404 Renew(screamnext, maxscream, I32);
408 sfirst = screamfirst;
411 if (!sfirst || !snext)
412 DIE("do_study: out of memory");
414 for (ch = 256; ch; --ch)
421 snext[pos] = sfirst[ch] - pos;
428 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
431 XPUSHs(sv_2mortal(newSViv((I32)retval)));
440 if (op->op_flags & OPf_STACKED)
446 TARG = sv_newmortal();
447 PUSHi(do_trans(sv, op));
451 /* Lvalue operators. */
473 SETi(do_chomp(TOPs));
480 register I32 count = 0;
483 count += do_chomp(POPs);
494 if (!sv || !SvANY(sv))
496 switch (SvTYPE(sv)) {
498 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
502 if (HvARRAY(sv) || SvRMAGICAL(sv))
506 if (CvROOT(sv) || CvXSUB(sv))
530 if (SvTHINKFIRST(sv)) {
537 switch (SvTYPE(sv)) {
552 sv_setsv(sv, &sv_undef);
556 if (SvPOK(sv) && SvLEN(sv)) {
559 SvPV_set(sv, Nullch);
572 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
573 SvIVX(TOPs) != IV_MIN)
576 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
587 sv_setsv(TARG, TOPs);
588 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
589 SvIVX(TOPs) != IV_MAX)
592 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
606 sv_setsv(TARG, TOPs);
607 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
608 SvIVX(TOPs) != IV_MIN)
611 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
620 /* Ordinary operators. */
624 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
627 SETn( pow( left, right) );
634 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
637 SETn( left * right );
644 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
648 DIE("Illegal division by zero");
650 /* insure that 20./5. == 4. */
655 if ((double)I_32(x) == x &&
656 (double)I_32(value) == value &&
657 (k = I_32(x)/I_32(value))*I_32(value) == I_32(x)) {
664 value = POPn / value;
673 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
680 DIE("Illegal modulus zero");
683 value = (UV)value % uval;
685 value = (uval - ((UV)(-value - 1) % uval)) - 1;
694 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
696 register I32 count = POPi;
697 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
699 I32 items = SP - MARK;
711 repeatcpy((char*)(MARK + items), (char*)MARK,
712 items * sizeof(SV*), count - 1);
718 else { /* Note: mark already snarfed by pp_list */
723 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
724 if (SvREADONLY(tmpstr) && curcop != &compiling)
725 DIE("Can't x= to readonly value");
729 SvSetSV(TARG, tmpstr);
730 SvPV_force(TARG, len);
732 SvGROW(TARG, (count * len) + 1);
734 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
735 SvCUR(TARG) *= count;
737 (void)SvPOK_only(TARG);
740 sv_setsv(TARG, &sv_no);
749 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
752 SETn( left - right );
759 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
762 if (op->op_private & HINT_INTEGER) {
776 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
779 if (op->op_private & HINT_INTEGER) {
793 dSP; tryAMAGICbinSET(lt,0);
796 SETs((TOPn < value) ? &sv_yes : &sv_no);
803 dSP; tryAMAGICbinSET(gt,0);
806 SETs((TOPn > value) ? &sv_yes : &sv_no);
813 dSP; tryAMAGICbinSET(le,0);
816 SETs((TOPn <= value) ? &sv_yes : &sv_no);
823 dSP; tryAMAGICbinSET(ge,0);
826 SETs((TOPn >= value) ? &sv_yes : &sv_no);
833 dSP; tryAMAGICbinSET(ne,0);
836 SETs((TOPn != value) ? &sv_yes : &sv_no);
843 dSP; dTARGET; tryAMAGICbin(ncmp,0);
850 else if (left < right)
861 dSP; tryAMAGICbinSET(slt,0);
864 int cmp = ((op->op_private & OPpLOCALE)
865 ? sv_cmp_locale(left, right)
866 : sv_cmp(left, right));
867 SETs( cmp < 0 ? &sv_yes : &sv_no );
874 dSP; tryAMAGICbinSET(sgt,0);
877 int cmp = ((op->op_private & OPpLOCALE)
878 ? sv_cmp_locale(left, right)
879 : sv_cmp(left, right));
880 SETs( cmp > 0 ? &sv_yes : &sv_no );
887 dSP; tryAMAGICbinSET(sle,0);
890 int cmp = ((op->op_private & OPpLOCALE)
891 ? sv_cmp_locale(left, right)
892 : sv_cmp(left, right));
893 SETs( cmp <= 0 ? &sv_yes : &sv_no );
900 dSP; tryAMAGICbinSET(sge,0);
903 int cmp = ((op->op_private & OPpLOCALE)
904 ? sv_cmp_locale(left, right)
905 : sv_cmp(left, right));
906 SETs( cmp >= 0 ? &sv_yes : &sv_no );
913 dSP; tryAMAGICbinSET(sne,0);
916 bool ne = ((op->op_private & OPpLOCALE)
917 ? (sv_cmp_locale(left, right) != 0)
918 : !sv_eq(left, right));
919 SETs( ne ? &sv_yes : &sv_no );
926 dSP; dTARGET; tryAMAGICbin(scmp,0);
929 int cmp = ((op->op_private & OPpLOCALE)
930 ? sv_cmp_locale(left, right)
931 : sv_cmp(left, right));
939 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
942 if (SvNIOKp(left) || SvNIOKp(right)) {
943 UV value = SvUV(left) & SvUV(right);
944 if (op->op_private & HINT_INTEGER)
950 do_vop(op->op_type, TARG, left, right);
959 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
962 if (SvNIOKp(left) || SvNIOKp(right)) {
963 UV value = SvUV(left) ^ SvUV(right);
964 if (op->op_private & HINT_INTEGER)
970 do_vop(op->op_type, TARG, left, right);
979 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
982 if (SvNIOKp(left) || SvNIOKp(right)) {
983 UV value = SvUV(left) | SvUV(right);
984 if (op->op_private & HINT_INTEGER)
990 do_vop(op->op_type, TARG, left, right);
999 dSP; dTARGET; tryAMAGICun(neg);
1004 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1006 else if (SvNIOKp(sv))
1008 else if (SvPOKp(sv)) {
1010 char *s = SvPV(sv, len);
1011 if (isIDFIRST(*s)) {
1012 sv_setpvn(TARG, "-", 1);
1015 else if (*s == '+' || *s == '-') {
1017 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1020 sv_setnv(TARG, -SvNV(sv));
1032 dSP; tryAMAGICunSET(not);
1033 #endif /* OVERLOAD */
1034 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1040 dSP; dTARGET; tryAMAGICun(compl);
1044 UV value = ~SvUV(sv);
1045 if (op->op_private & HINT_INTEGER)
1051 register char *tmps;
1052 register long *tmpl;
1057 tmps = SvPV_force(TARG, len);
1060 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1063 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1067 for ( ; anum > 0; anum--, tmps++)
1076 /* integer versions of some of the above */
1080 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1083 SETi( left * right );
1090 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1094 DIE("Illegal division by zero");
1095 value = POPi / value;
1103 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1106 SETi( left % right );
1113 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1116 SETi( left + right );
1123 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1126 SETi( left - right );
1133 dSP; tryAMAGICbinSET(lt,0);
1136 SETs((left < right) ? &sv_yes : &sv_no);
1143 dSP; tryAMAGICbinSET(gt,0);
1146 SETs((left > right) ? &sv_yes : &sv_no);
1153 dSP; tryAMAGICbinSET(le,0);
1156 SETs((left <= right) ? &sv_yes : &sv_no);
1163 dSP; tryAMAGICbinSET(ge,0);
1166 SETs((left >= right) ? &sv_yes : &sv_no);
1173 dSP; tryAMAGICbinSET(eq,0);
1176 SETs((left == right) ? &sv_yes : &sv_no);
1183 dSP; tryAMAGICbinSET(ne,0);
1186 SETs((left != right) ? &sv_yes : &sv_no);
1193 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1200 else if (left < right)
1211 dSP; dTARGET; tryAMAGICun(neg);
1216 /* High falutin' math. */
1220 dSP; dTARGET; tryAMAGICbin(atan2,0);
1223 SETn(atan2(left, right));
1230 dSP; dTARGET; tryAMAGICun(sin);
1242 dSP; dTARGET; tryAMAGICun(cos);
1263 value = rand() * value / 2147483648.0;
1266 value = rand() * value / 65536.0;
1269 value = rand() * value / 32768.0;
1271 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1286 # include <starlet.h>
1287 unsigned int when[2];
1288 _ckvmssts(sys$gettim(when));
1289 anum = when[0] ^ when[1];
1291 # if defined(I_SYS_TIME) && !defined(PLAN9)
1292 struct timeval when;
1293 gettimeofday(&when,(struct timezone *) 0);
1294 anum = when.tv_sec ^ when.tv_usec;
1301 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1302 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1303 /* What is a good hashing algorithm here? */
1304 anum ^= ( ( 269 * (U32)getpid())
1305 ^ (26107 * (U32)&when)
1306 ^ (73819 * (U32)stack_sp));
1318 dSP; dTARGET; tryAMAGICun(exp);
1330 dSP; dTARGET; tryAMAGICun(log);
1336 DIE("Can't take log of %g", value);
1346 dSP; dTARGET; tryAMAGICun(sqrt);
1352 DIE("Can't take sqrt of %g", value);
1354 value = sqrt(value);
1366 (void)modf(value, &value);
1368 (void)modf(-value, &value);
1377 dSP; dTARGET; tryAMAGICun(abs);
1397 XPUSHu(scan_hex(tmps, 99, &argtype));
1409 while (*tmps && isSPACE(*tmps))
1414 value = scan_hex(++tmps, 99, &argtype);
1416 value = scan_oct(tmps, 99, &argtype);
1426 SETi( sv_len(TOPs) );
1438 I32 lvalue = op->op_flags & OPf_MOD;
1440 I32 arybase = curcop->cop_arybase;
1444 pos = POPi - arybase;
1446 tmps = SvPV(sv, curlen);
1448 pos += curlen + arybase;
1449 if (pos < 0 || pos > curlen) {
1450 if (dowarn || lvalue)
1451 warn("substr outside of string");
1458 len += curlen - pos;
1463 rem = curlen - pos; /* rem=how many bytes left*/
1466 sv_setpvn(TARG, tmps, rem);
1467 if (lvalue) { /* it's an lvalue! */
1468 if (!SvGMAGICAL(sv)) {
1472 warn("Attempt to use reference as lvalue in substr");
1474 if (SvOK(sv)) /* is it defined ? */
1475 (void)SvPOK_only(sv);
1477 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1479 if (SvTYPE(TARG) < SVt_PVLV) {
1480 sv_upgrade(TARG, SVt_PVLV);
1481 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1486 LvTARGOFF(TARG) = pos;
1487 LvTARGLEN(TARG) = rem;
1490 PUSHs(TARG); /* avoid SvSETMAGIC here */
1497 register I32 size = POPi;
1498 register I32 offset = POPi;
1499 register SV *src = POPs;
1500 I32 lvalue = op->op_flags & OPf_MOD;
1502 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1503 unsigned long retnum;
1506 offset *= size; /* turn into bit offset */
1507 len = (offset + size + 7) / 8;
1508 if (offset < 0 || size < 1)
1511 if (lvalue) { /* it's an lvalue! */
1512 if (SvTYPE(TARG) < SVt_PVLV) {
1513 sv_upgrade(TARG, SVt_PVLV);
1514 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1519 LvTARGOFF(TARG) = offset;
1520 LvTARGLEN(TARG) = size;
1528 if (offset >= srclen)
1531 retnum = (unsigned long) s[offset] << 8;
1533 else if (size == 32) {
1534 if (offset >= srclen)
1536 else if (offset + 1 >= srclen)
1537 retnum = (unsigned long) s[offset] << 24;
1538 else if (offset + 2 >= srclen)
1539 retnum = ((unsigned long) s[offset] << 24) +
1540 ((unsigned long) s[offset + 1] << 16);
1542 retnum = ((unsigned long) s[offset] << 24) +
1543 ((unsigned long) s[offset + 1] << 16) +
1544 (s[offset + 2] << 8);
1549 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1554 else if (size == 16)
1555 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1556 else if (size == 32)
1557 retnum = ((unsigned long) s[offset] << 24) +
1558 ((unsigned long) s[offset + 1] << 16) +
1559 (s[offset + 2] << 8) + s[offset+3];
1563 sv_setiv(TARG, (I32)retnum);
1578 I32 arybase = curcop->cop_arybase;
1583 offset = POPi - arybase;
1586 tmps = SvPV(big, biglen);
1589 else if (offset > biglen)
1591 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1592 (unsigned char*)tmps + biglen, little)))
1593 retval = -1 + arybase;
1595 retval = tmps2 - tmps + arybase;
1612 I32 arybase = curcop->cop_arybase;
1618 tmps2 = SvPV(little, llen);
1619 tmps = SvPV(big, blen);
1623 offset = SvIV(offstr) - arybase + llen;
1626 else if (offset > blen)
1628 if (!(tmps2 = rninstr(tmps, tmps + offset,
1629 tmps2, tmps2 + llen)))
1630 retval = -1 + arybase;
1632 retval = tmps2 - tmps + arybase;
1639 dSP; dMARK; dORIGMARK; dTARGET;
1641 if (op->op_private & OPpLOCALE)
1645 #endif /* LC_NUMERIC */
1646 do_sprintf(TARG, SP-MARK, MARK+1);
1647 TAINT_IF(SvTAINTED(TARG));
1661 value = (I32) (*tmps & 255);
1666 value = (I32) (anum & 255);
1677 (void)SvUPGRADE(TARG,SVt_PV);
1683 (void)SvPOK_only(TARG);
1690 dSP; dTARGET; dPOPTOPssrl;
1692 char *tmps = SvPV(left, na);
1694 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1696 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1700 "The crypt() function is unimplemented due to excessive paranoia.");
1712 if (!SvPADTMP(sv)) {
1718 s = SvPV_force(sv, na);
1720 if (op->op_private & OPpLOCALE) {
1723 *s = toUPPER_LC(*s);
1738 if (!SvPADTMP(sv)) {
1744 s = SvPV_force(sv, na);
1746 if (op->op_private & OPpLOCALE) {
1749 *s = toLOWER_LC(*s);
1766 if (!SvPADTMP(sv)) {
1773 s = SvPV_force(sv, len);
1775 register char *send = s + len;
1777 if (op->op_private & OPpLOCALE) {
1780 for (; s < send; s++)
1781 *s = toUPPER_LC(*s);
1784 for (; s < send; s++)
1798 if (!SvPADTMP(sv)) {
1805 s = SvPV_force(sv, len);
1807 register char *send = s + len;
1809 if (op->op_private & OPpLOCALE) {
1812 for (; s < send; s++)
1813 *s = toLOWER_LC(*s);
1816 for (; s < send; s++)
1828 register char *s = SvPV(sv,len);
1832 (void)SvUPGRADE(TARG, SVt_PV);
1833 SvGROW(TARG, (len * 2) + 1);
1841 SvCUR_set(TARG, d - SvPVX(TARG));
1842 (void)SvPOK_only(TARG);
1845 sv_setpvn(TARG, s, len);
1854 dSP; dMARK; dORIGMARK;
1856 register AV* av = (AV*)POPs;
1857 register I32 lval = op->op_flags & OPf_MOD;
1858 I32 arybase = curcop->cop_arybase;
1861 if (SvTYPE(av) == SVt_PVAV) {
1862 if (lval && op->op_private & OPpLVAL_INTRO) {
1864 for (svp = mark + 1; svp <= sp; svp++) {
1869 if (max > AvMAX(av))
1872 while (++MARK <= SP) {
1873 elem = SvIVx(*MARK);
1877 svp = av_fetch(av, elem, lval);
1879 if (!svp || *svp == &sv_undef)
1880 DIE(no_aelem, elem);
1881 if (op->op_private & OPpLVAL_INTRO)
1884 *MARK = svp ? *svp : &sv_undef;
1887 if (GIMME != G_ARRAY) {
1895 /* Associative arrays. */
1900 HV *hash = (HV*)POPs;
1904 entry = hv_iternext(hash); /* might clobber stack_sp */
1909 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1910 if (GIMME == G_ARRAY) {
1912 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1917 else if (GIMME == G_SCALAR)
1940 if (SvTYPE(hv) != SVt_PVHV) {
1941 DIE("Not a HASH reference");
1943 sv = hv_delete_ent(hv, tmpsv,
1944 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1957 if (SvTYPE(hv) != SVt_PVHV) {
1958 DIE("Not a HASH reference");
1960 if (hv_exists_ent(hv, tmpsv, 0))
1967 dSP; dMARK; dORIGMARK;
1969 register HV *hv = (HV*)POPs;
1970 register I32 lval = op->op_flags & OPf_MOD;
1972 if (SvTYPE(hv) == SVt_PVHV) {
1973 while (++MARK <= SP) {
1976 he = hv_fetch_ent(hv, keysv, lval, 0);
1978 if (!he || HeVAL(he) == &sv_undef)
1979 DIE(no_helem, SvPV(keysv, na));
1980 if (op->op_private & OPpLVAL_INTRO)
1981 save_svref(&HeVAL(he));
1983 *MARK = he ? HeVAL(he) : &sv_undef;
1986 if (GIMME != G_ARRAY) {
1994 /* List operators. */
1999 if (GIMME != G_ARRAY) {
2001 *MARK = *SP; /* unwanted list, return last item */
2012 SV **lastrelem = stack_sp;
2013 SV **lastlelem = stack_base + POPMARK;
2014 SV **firstlelem = stack_base + POPMARK + 1;
2015 register SV **firstrelem = lastlelem + 1;
2016 I32 arybase = curcop->cop_arybase;
2017 I32 lval = op->op_flags & OPf_MOD;
2018 I32 is_something_there = lval;
2020 register I32 max = lastrelem - lastlelem;
2021 register SV **lelem;
2024 if (GIMME != G_ARRAY) {
2025 ix = SvIVx(*lastlelem);
2030 if (ix < 0 || ix >= max)
2031 *firstlelem = &sv_undef;
2033 *firstlelem = firstrelem[ix];
2039 SP = firstlelem - 1;
2043 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2049 else if (!(*lelem = firstrelem[ix]))
2054 if (ix >= max || !(*lelem = firstrelem[ix]))
2057 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2058 is_something_there = TRUE;
2060 if (is_something_there)
2063 SP = firstlelem - 1;
2070 I32 items = SP - MARK;
2072 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2078 dSP; dMARK; dORIGMARK;
2080 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2084 SV *val = NEWSV(46, 0);
2086 sv_setsv(val, *++MARK);
2088 warn("Odd number of elements in hash list");
2089 (void)hv_store_ent(hv,key,val,0);
2098 dSP; dMARK; dORIGMARK;
2099 register AV *ary = (AV*)*++MARK;
2103 register I32 offset;
2104 register I32 length;
2113 offset = SvIVx(*MARK);
2115 offset += AvFILL(ary) + 1;
2117 offset -= curcop->cop_arybase;
2119 length = SvIVx(*MARK++);
2124 length = AvMAX(ary) + 1; /* close enough to infinity */
2128 length = AvMAX(ary) + 1;
2136 if (offset > AvFILL(ary) + 1)
2137 offset = AvFILL(ary) + 1;
2138 after = AvFILL(ary) + 1 - (offset + length);
2139 if (after < 0) { /* not that much array */
2140 length += after; /* offset+length now in array */
2146 /* At this point, MARK .. SP-1 is our new LIST */
2149 diff = newlen - length;
2151 if (diff < 0) { /* shrinking the area */
2153 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2154 Copy(MARK, tmparyval, newlen, SV*);
2157 MARK = ORIGMARK + 1;
2158 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2159 MEXTEND(MARK, length);
2160 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2162 EXTEND_MORTAL(length);
2163 for (i = length, dst = MARK; i; i--)
2164 sv_2mortal(*dst++); /* free them eventualy */
2169 *MARK = AvARRAY(ary)[offset+length-1];
2172 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2173 SvREFCNT_dec(*dst++); /* free them now */
2176 AvFILL(ary) += diff;
2178 /* pull up or down? */
2180 if (offset < after) { /* easier to pull up */
2181 if (offset) { /* esp. if nothing to pull */
2182 src = &AvARRAY(ary)[offset-1];
2183 dst = src - diff; /* diff is negative */
2184 for (i = offset; i > 0; i--) /* can't trust Copy */
2188 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2192 if (after) { /* anything to pull down? */
2193 src = AvARRAY(ary) + offset + length;
2194 dst = src + diff; /* diff is negative */
2195 Move(src, dst, after, SV*);
2197 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2198 /* avoid later double free */
2202 dst[--i] = &sv_undef;
2205 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2207 *dst = NEWSV(46, 0);
2208 sv_setsv(*dst++, *src++);
2210 Safefree(tmparyval);
2213 else { /* no, expanding (or same) */
2215 New(452, tmparyval, length, SV*); /* so remember deletion */
2216 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2219 if (diff > 0) { /* expanding */
2221 /* push up or down? */
2223 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2227 Move(src, dst, offset, SV*);
2229 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2231 AvFILL(ary) += diff;
2234 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2235 av_extend(ary, AvFILL(ary) + diff);
2236 AvFILL(ary) += diff;
2239 dst = AvARRAY(ary) + AvFILL(ary);
2241 for (i = after; i; i--) {
2248 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2249 *dst = NEWSV(46, 0);
2250 sv_setsv(*dst++, *src++);
2252 MARK = ORIGMARK + 1;
2253 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2255 Copy(tmparyval, MARK, length, SV*);
2257 EXTEND_MORTAL(length);
2258 for (i = length, dst = MARK; i; i--)
2259 sv_2mortal(*dst++); /* free them eventualy */
2261 Safefree(tmparyval);
2265 else if (length--) {
2266 *MARK = tmparyval[length];
2269 while (length-- > 0)
2270 SvREFCNT_dec(tmparyval[length]);
2272 Safefree(tmparyval);
2283 dSP; dMARK; dORIGMARK; dTARGET;
2284 register AV *ary = (AV*)*++MARK;
2285 register SV *sv = &sv_undef;
2287 for (++MARK; MARK <= SP; MARK++) {
2290 sv_setsv(sv, *MARK);
2294 PUSHi( AvFILL(ary) + 1 );
2302 SV *sv = av_pop(av);
2303 if (sv != &sv_undef && AvREAL(av))
2304 (void)sv_2mortal(sv);
2313 SV *sv = av_shift(av);
2317 if (sv != &sv_undef && AvREAL(av))
2318 (void)sv_2mortal(sv);
2325 dSP; dMARK; dORIGMARK; dTARGET;
2326 register AV *ary = (AV*)*++MARK;
2330 av_unshift(ary, SP - MARK);
2333 sv_setsv(sv, *++MARK);
2334 (void)av_store(ary, i++, sv);
2338 PUSHi( AvFILL(ary) + 1 );
2348 if (GIMME == G_ARRAY) {
2359 register char *down;
2365 do_join(TARG, &sv_no, MARK, SP);
2367 sv_setsv(TARG, *SP);
2368 up = SvPV_force(TARG, len);
2370 down = SvPVX(TARG) + len - 1;
2376 (void)SvPOK_only(TARG);
2390 char *s = SvPV(sv, len);
2394 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2395 SV *new = newSVpv("0000000000", 10);
2398 SvREFCNT_dec(sv); /* free old sv */
2403 while (!*t) /* trailing '\0'? */
2406 i = ((*t - '0') << 7) + m;
2407 *(t--) = '0' + (i % 10);
2413 /* Explosives and implosives. */
2422 register char *pat = SvPV(left, llen);
2423 register char *s = SvPV(right, rlen);
2424 char *strend = s + rlen;
2426 register char *patend = pat + llen;
2431 /* These must not be in registers: */
2442 unsigned Quad_t auquad;
2448 register U32 culong;
2450 static char* bitcount = 0;
2452 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2454 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2455 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2457 while (isDIGIT(*patend) || *patend == '*')
2463 while (pat < patend) {
2468 else if (*pat == '*') {
2469 len = strend - strbeg; /* long enough */
2472 else if (isDIGIT(*pat)) {
2474 while (isDIGIT(*pat))
2475 len = (len * 10) + (*pat++ - '0');
2478 len = (datumtype != '@');
2483 if (len == 1 && pat[-1] != '1')
2492 if (len > strend - strbeg)
2493 DIE("@ outside of string");
2497 if (len > s - strbeg)
2498 DIE("X outside of string");
2502 if (len > strend - s)
2503 DIE("x outside of string");
2508 if (len > strend - s)
2511 goto uchar_checksum;
2512 sv = NEWSV(35, len);
2513 sv_setpvn(sv, s, len);
2515 if (datumtype == 'A') {
2516 aptr = s; /* borrow register */
2517 s = SvPVX(sv) + len - 1;
2518 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2521 SvCUR_set(sv, s - SvPVX(sv));
2522 s = aptr; /* unborrow register */
2524 XPUSHs(sv_2mortal(sv));
2528 if (pat[-1] == '*' || len > (strend - s) * 8)
2529 len = (strend - s) * 8;
2532 Newz(601, bitcount, 256, char);
2533 for (bits = 1; bits < 256; bits++) {
2534 if (bits & 1) bitcount[bits]++;
2535 if (bits & 2) bitcount[bits]++;
2536 if (bits & 4) bitcount[bits]++;
2537 if (bits & 8) bitcount[bits]++;
2538 if (bits & 16) bitcount[bits]++;
2539 if (bits & 32) bitcount[bits]++;
2540 if (bits & 64) bitcount[bits]++;
2541 if (bits & 128) bitcount[bits]++;
2545 culong += bitcount[*(unsigned char*)s++];
2550 if (datumtype == 'b') {
2552 if (bits & 1) culong++;
2558 if (bits & 128) culong++;
2565 sv = NEWSV(35, len + 1);
2568 aptr = pat; /* borrow register */
2570 if (datumtype == 'b') {
2572 for (len = 0; len < aint; len++) {
2573 if (len & 7) /*SUPPRESS 595*/
2577 *pat++ = '0' + (bits & 1);
2582 for (len = 0; len < aint; len++) {
2587 *pat++ = '0' + ((bits & 128) != 0);
2591 pat = aptr; /* unborrow register */
2592 XPUSHs(sv_2mortal(sv));
2596 if (pat[-1] == '*' || len > (strend - s) * 2)
2597 len = (strend - s) * 2;
2598 sv = NEWSV(35, len + 1);
2601 aptr = pat; /* borrow register */
2603 if (datumtype == 'h') {
2605 for (len = 0; len < aint; len++) {
2610 *pat++ = hexdigit[bits & 15];
2615 for (len = 0; len < aint; len++) {
2620 *pat++ = hexdigit[(bits >> 4) & 15];
2624 pat = aptr; /* unborrow register */
2625 XPUSHs(sv_2mortal(sv));
2628 if (len > strend - s)
2633 if (aint >= 128) /* fake up signed chars */
2643 if (aint >= 128) /* fake up signed chars */
2646 sv_setiv(sv, (I32)aint);
2647 PUSHs(sv_2mortal(sv));
2652 if (len > strend - s)
2667 sv_setiv(sv, (I32)auint);
2668 PUSHs(sv_2mortal(sv));
2673 along = (strend - s) / sizeof(I16);
2678 Copy(s, &ashort, 1, I16);
2687 Copy(s, &ashort, 1, I16);
2690 sv_setiv(sv, (I32)ashort);
2691 PUSHs(sv_2mortal(sv));
2698 along = (strend - s) / sizeof(U16);
2703 Copy(s, &aushort, 1, U16);
2706 if (datumtype == 'n')
2707 aushort = ntohs(aushort);
2710 if (datumtype == 'v')
2711 aushort = vtohs(aushort);
2720 Copy(s, &aushort, 1, U16);
2724 if (datumtype == 'n')
2725 aushort = ntohs(aushort);
2728 if (datumtype == 'v')
2729 aushort = vtohs(aushort);
2731 sv_setiv(sv, (I32)aushort);
2732 PUSHs(sv_2mortal(sv));
2737 along = (strend - s) / sizeof(int);
2742 Copy(s, &aint, 1, int);
2745 cdouble += (double)aint;
2754 Copy(s, &aint, 1, int);
2757 sv_setiv(sv, (I32)aint);
2758 PUSHs(sv_2mortal(sv));
2763 along = (strend - s) / sizeof(unsigned int);
2768 Copy(s, &auint, 1, unsigned int);
2769 s += sizeof(unsigned int);
2771 cdouble += (double)auint;
2780 Copy(s, &auint, 1, unsigned int);
2781 s += sizeof(unsigned int);
2783 if (auint <= I32_MAX)
2784 sv_setiv(sv, (I32)auint);
2786 sv_setnv(sv, (double)auint);
2787 PUSHs(sv_2mortal(sv));
2792 along = (strend - s) / sizeof(I32);
2797 Copy(s, &along, 1, I32);
2800 cdouble += (double)along;
2809 Copy(s, &along, 1, I32);
2812 sv_setiv(sv, (I32)along);
2813 PUSHs(sv_2mortal(sv));
2820 along = (strend - s) / sizeof(U32);
2825 Copy(s, &aulong, 1, U32);
2828 if (datumtype == 'N')
2829 aulong = ntohl(aulong);
2832 if (datumtype == 'V')
2833 aulong = vtohl(aulong);
2836 cdouble += (double)aulong;
2845 Copy(s, &aulong, 1, U32);
2849 if (datumtype == 'N')
2850 aulong = ntohl(aulong);
2853 if (datumtype == 'V')
2854 aulong = vtohl(aulong);
2856 sv_setnv(sv, (double)aulong);
2857 PUSHs(sv_2mortal(sv));
2862 along = (strend - s) / sizeof(char*);
2868 if (sizeof(char*) > strend - s)
2871 Copy(s, &aptr, 1, char*);
2877 PUSHs(sv_2mortal(sv));
2887 while ((len > 0) && (s < strend)) {
2888 auv = (auv << 7) | (*s & 0x7f);
2889 if (!(*s++ & 0x80)) {
2893 PUSHs(sv_2mortal(sv));
2897 else if (++bytes >= sizeof(UV)) { /* promote to string */
2898 char decn[sizeof(UV) * 3 + 1];
2901 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2902 sv = newSVpv(decn, 0);
2903 while (s < strend) {
2904 sv = mul128(sv, *s & 0x7f);
2905 if (!(*s++ & 0x80)) {
2914 PUSHs(sv_2mortal(sv));
2919 if ((s >= strend) && bytes)
2920 croak("Unterminated compressed integer");
2925 if (sizeof(char*) > strend - s)
2928 Copy(s, &aptr, 1, char*);
2933 sv_setpvn(sv, aptr, len);
2934 PUSHs(sv_2mortal(sv));
2941 if (s + sizeof(Quad_t) > strend)
2944 Copy(s, &aquad, 1, Quad_t);
2945 s += sizeof(Quad_t);
2948 sv_setiv(sv, (IV)aquad);
2949 PUSHs(sv_2mortal(sv));
2956 if (s + sizeof(unsigned Quad_t) > strend)
2959 Copy(s, &auquad, 1, unsigned Quad_t);
2960 s += sizeof(unsigned Quad_t);
2963 sv_setiv(sv, (IV)auquad);
2964 PUSHs(sv_2mortal(sv));
2968 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
2971 along = (strend - s) / sizeof(float);
2976 Copy(s, &afloat, 1, float);
2985 Copy(s, &afloat, 1, float);
2988 sv_setnv(sv, (double)afloat);
2989 PUSHs(sv_2mortal(sv));
2995 along = (strend - s) / sizeof(double);
3000 Copy(s, &adouble, 1, double);
3001 s += sizeof(double);
3009 Copy(s, &adouble, 1, double);
3010 s += sizeof(double);
3012 sv_setnv(sv, (double)adouble);
3013 PUSHs(sv_2mortal(sv));
3018 along = (strend - s) * 3 / 4;
3019 sv = NEWSV(42, along);
3022 while (s < strend && *s > ' ' && *s < 'a') {
3027 len = (*s++ - ' ') & 077;
3029 if (s < strend && *s >= ' ')
3030 a = (*s++ - ' ') & 077;
3033 if (s < strend && *s >= ' ')
3034 b = (*s++ - ' ') & 077;
3037 if (s < strend && *s >= ' ')
3038 c = (*s++ - ' ') & 077;
3041 if (s < strend && *s >= ' ')
3042 d = (*s++ - ' ') & 077;
3045 hunk[0] = a << 2 | b >> 4;
3046 hunk[1] = b << 4 | c >> 2;
3047 hunk[2] = c << 6 | d;
3048 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3053 else if (s[1] == '\n') /* possible checksum byte */
3056 XPUSHs(sv_2mortal(sv));
3061 if (strchr("fFdD", datumtype) ||
3062 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3066 while (checksum >= 16) {
3070 while (checksum >= 4) {
3076 along = (1 << checksum) - 1;
3077 while (cdouble < 0.0)
3079 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3080 sv_setnv(sv, cdouble);
3083 if (checksum < 32) {
3084 along = (1 << checksum) - 1;
3085 culong &= (U32)along;
3087 sv_setnv(sv, (double)culong);
3089 XPUSHs(sv_2mortal(sv));
3097 doencodes(sv, s, len)
3105 sv_catpvn(sv, hunk, 1);
3108 hunk[0] = ' ' + (077 & (*s >> 2));
3109 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3110 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3111 hunk[3] = ' ' + (077 & (s[2] & 077));
3112 sv_catpvn(sv, hunk, 4);
3116 for (s = SvPVX(sv); *s; s++) {
3120 sv_catpvn(sv, "\n", 1);
3128 SV *result = newSVpv("", l);
3129 char *result_c = SvPV(result, na); /* convenience */
3130 char *out = result_c;
3140 SvREFCNT_dec(result);
3163 SvREFCNT_dec(result);
3169 SvCUR_set(result, out - result_c);
3175 SV *pnum; /* must be '\0' terminated */
3179 char *s = SvPV(pnum, len);
3188 i = m * 10 + (*t - '0');
3190 r = (i >> 7); /* r < 10 */
3197 SvCUR_set(pnum, (STRLEN) (t - s));
3204 dSP; dMARK; dORIGMARK; dTARGET;
3205 register SV *cat = TARG;
3208 register char *pat = SvPVx(*++MARK, fromlen);
3209 register char *patend = pat + fromlen;
3214 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3215 static char *space10 = " ";
3217 /* These must not be in registers: */
3226 unsigned Quad_t auquad;
3234 sv_setpvn(cat, "", 0);
3235 while (pat < patend) {
3236 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3239 len = strchr("@Xxu", datumtype) ? 0 : items;
3242 else if (isDIGIT(*pat)) {
3244 while (isDIGIT(*pat))
3245 len = (len * 10) + (*pat++ - '0');
3253 DIE("%% may only be used in unpack");
3264 if (SvCUR(cat) < len)
3265 DIE("X outside of string");
3272 sv_catpvn(cat, null10, 10);
3275 sv_catpvn(cat, null10, len);
3280 aptr = SvPV(fromstr, fromlen);
3284 sv_catpvn(cat, aptr, len);
3286 sv_catpvn(cat, aptr, fromlen);
3288 if (datumtype == 'A') {
3290 sv_catpvn(cat, space10, 10);
3293 sv_catpvn(cat, space10, len);
3297 sv_catpvn(cat, null10, 10);
3300 sv_catpvn(cat, null10, len);
3307 char *savepat = pat;
3312 aptr = SvPV(fromstr, fromlen);
3317 SvCUR(cat) += (len+7)/8;
3318 SvGROW(cat, SvCUR(cat) + 1);
3319 aptr = SvPVX(cat) + aint;
3324 if (datumtype == 'B') {
3325 for (len = 0; len++ < aint;) {
3326 items |= *pat++ & 1;
3330 *aptr++ = items & 0xff;
3336 for (len = 0; len++ < aint;) {
3342 *aptr++ = items & 0xff;
3348 if (datumtype == 'B')
3349 items <<= 7 - (aint & 7);
3351 items >>= 7 - (aint & 7);
3352 *aptr++ = items & 0xff;
3354 pat = SvPVX(cat) + SvCUR(cat);
3365 char *savepat = pat;
3370 aptr = SvPV(fromstr, fromlen);
3375 SvCUR(cat) += (len+1)/2;
3376 SvGROW(cat, SvCUR(cat) + 1);
3377 aptr = SvPVX(cat) + aint;
3382 if (datumtype == 'H') {
3383 for (len = 0; len++ < aint;) {
3385 items |= ((*pat++ & 15) + 9) & 15;
3387 items |= *pat++ & 15;
3391 *aptr++ = items & 0xff;
3397 for (len = 0; len++ < aint;) {
3399 items |= (((*pat++ & 15) + 9) & 15) << 4;
3401 items |= (*pat++ & 15) << 4;
3405 *aptr++ = items & 0xff;
3411 *aptr++ = items & 0xff;
3412 pat = SvPVX(cat) + SvCUR(cat);
3424 aint = SvIV(fromstr);
3426 sv_catpvn(cat, &achar, sizeof(char));
3429 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3434 afloat = (float)SvNV(fromstr);
3435 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3442 adouble = (double)SvNV(fromstr);
3443 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3449 ashort = (I16)SvIV(fromstr);
3451 ashort = htons(ashort);
3453 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3459 ashort = (I16)SvIV(fromstr);
3461 ashort = htovs(ashort);
3463 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3470 ashort = (I16)SvIV(fromstr);
3471 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3477 auint = U_I(SvNV(fromstr));
3478 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3484 adouble = floor(SvNV(fromstr));
3487 croak("Cannot compress negative numbers");
3489 if (adouble <= UV_MAX) {
3490 char buf[1 + sizeof(UV)];
3491 char *in = buf + sizeof(buf);
3492 UV auv = U_V(adouble);;
3495 *--in = (auv & 0x7f) | 0x80;
3498 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3499 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3501 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3502 char *from, *result, *in;
3507 /* Copy string and check for compliance */
3508 from = SvPV(fromstr, len);
3509 if ((norm = is_an_int(from, len)) == NULL)
3510 croak("can compress only unsigned integer");
3512 New('w', result, len, char);
3516 *--in = div128(norm, &done) | 0x80;
3517 result[len - 1] &= 0x7F; /* clear continue bit */
3518 sv_catpvn(cat, in, (result + len) - in);
3519 SvREFCNT_dec(norm); /* free norm */
3521 else if (SvNOKp(fromstr)) {
3522 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3523 char *in = buf + sizeof(buf);
3526 double next = floor(adouble / 128);
3527 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3528 if (--in < buf) /* this cannot happen ;-) */
3529 croak ("Cannot compress integer");
3531 } while (adouble > 0);
3532 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3533 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3536 croak("Cannot compress non integer");
3542 aint = SvIV(fromstr);
3543 sv_catpvn(cat, (char*)&aint, sizeof(int));
3549 aulong = U_L(SvNV(fromstr));
3551 aulong = htonl(aulong);
3553 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3559 aulong = U_L(SvNV(fromstr));
3561 aulong = htovl(aulong);
3563 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3569 aulong = U_L(SvNV(fromstr));
3570 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3576 along = SvIV(fromstr);
3577 sv_catpvn(cat, (char*)&along, sizeof(I32));
3584 auquad = (unsigned Quad_t)SvIV(fromstr);
3585 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3591 aquad = (Quad_t)SvIV(fromstr);
3592 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3595 #endif /* HAS_QUAD */
3597 len = 1; /* assume SV is correct length */
3602 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3603 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3608 aptr = SvPV(fromstr, fromlen);
3609 SvGROW(cat, fromlen * 4 / 3);
3614 while (fromlen > 0) {
3621 doencodes(cat, aptr, todo);
3639 register I32 limit = POPi; /* note, negative is forever */
3642 register char *s = SvPV(sv, len);
3643 char *strend = s + len;
3644 register PMOP *pm = (PMOP*)POPs;
3648 I32 maxiters = (strend - s) + 10;
3651 I32 origlimit = limit;
3654 AV *oldstack = curstack;
3655 register REGEXP *rx = pm->op_pmregexp;
3657 I32 oldsave = savestack_ix;
3660 DIE("panic: do_split");
3662 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3663 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3665 if (pm->op_pmreplroot)
3666 ary = GvAVn((GV*)pm->op_pmreplroot);
3667 else if (gimme != G_ARRAY)
3671 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3675 for (i = AvFILL(ary); i >= 0; i--)
3676 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3680 /* temporarily switch stacks */
3681 SWITCHSTACK(curstack, ary);
3683 base = SP - stack_base;
3685 if (pm->op_pmflags & PMf_SKIPWHITE) {
3686 if (pm->op_pmflags & PMf_LOCALE) {
3687 while (isSPACE_LC(*s))
3695 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3697 multiline = pm->op_pmflags & PMf_MULTILINE;
3701 limit = maxiters + 2;
3702 if (pm->op_pmflags & PMf_WHITE) {
3705 while (m < strend &&
3706 !((pm->op_pmflags & PMf_LOCALE)
3707 ? isSPACE_LC(*m) : isSPACE(*m)))
3712 dstr = NEWSV(30, m-s);
3713 sv_setpvn(dstr, s, m-s);
3719 while (s < strend &&
3720 ((pm->op_pmflags & PMf_LOCALE)
3721 ? isSPACE_LC(*s) : isSPACE(*s)))
3725 else if (strEQ("^", rx->precomp)) {
3728 for (m = s; m < strend && *m != '\n'; m++) ;
3732 dstr = NEWSV(30, m-s);
3733 sv_setpvn(dstr, s, m-s);
3740 else if (pm->op_pmshort) {
3741 i = SvCUR(pm->op_pmshort);
3743 i = *SvPVX(pm->op_pmshort);
3746 for (m = s; m < strend && *m != i; m++) ;
3749 dstr = NEWSV(30, m-s);
3750 sv_setpvn(dstr, s, m-s);
3759 while (s < strend && --limit &&
3760 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3764 dstr = NEWSV(31, m-s);
3765 sv_setpvn(dstr, s, m-s);
3774 maxiters += (strend - s) * rx->nparens;
3775 while (s < strend && --limit &&
3776 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3778 TAINT_IF(rx->exec_tainted);
3780 && rx->subbase != orig) {
3785 strend = s + (strend - m);
3788 dstr = NEWSV(32, m-s);
3789 sv_setpvn(dstr, s, m-s);
3794 for (i = 1; i <= rx->nparens; i++) {
3798 dstr = NEWSV(33, m-s);
3799 sv_setpvn(dstr, s, m-s);
3802 dstr = NEWSV(33, 0);
3811 LEAVE_SCOPE(oldsave);
3812 iters = (SP - stack_base) - base;
3813 if (iters > maxiters)
3816 /* keep field after final delim? */
3817 if (s < strend || (iters && origlimit)) {
3818 dstr = NEWSV(34, strend-s);
3819 sv_setpvn(dstr, s, strend-s);
3825 else if (!origlimit) {
3826 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3830 SWITCHSTACK(ary, oldstack);
3831 if (gimme == G_ARRAY) {
3833 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3839 if (gimme == G_ARRAY)
3842 if (iters || !pm->op_pmreplroot) {