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 SV* refto _((SV* sv));
33 static void doencodes _((SV* sv, char* s, I32 len));
35 /* variations on pp_null */
40 if (GIMME != G_ARRAY) {
56 if (op->op_private & OPpLVAL_INTRO)
57 SAVECLEARSV(curpad[op->op_targ]);
59 if (op->op_flags & OPf_REF) {
63 if (GIMME == G_ARRAY) {
64 I32 maxarg = AvFILL((AV*)TARG) + 1;
66 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
70 SV* sv = sv_newmortal();
71 I32 maxarg = AvFILL((AV*)TARG) + 1;
82 if (op->op_private & OPpLVAL_INTRO)
83 SAVECLEARSV(curpad[op->op_targ]);
84 if (op->op_flags & OPf_REF)
86 if (GIMME == G_ARRAY) { /* array wanted */
87 RETURNOP(do_kv(ARGS));
90 SV* sv = sv_newmortal();
91 if (HvFILL((HV*)TARG)) {
92 sprintf(buf, "%d/%d", HvFILL((HV*)TARG), HvMAX((HV*)TARG)+1);
104 DIE("NOT IMPL LINE %d",__LINE__);
116 if (SvTYPE(sv) == SVt_PVIO) {
117 GV *gv = (GV*) sv_newmortal();
118 gv_init(gv, 0, "", 0, 0);
119 GvIOp(gv) = (IO *)sv;
122 } else if (SvTYPE(sv) != SVt_PVGV)
123 DIE("Not a GLOB reference");
126 if (SvTYPE(sv) != SVt_PVGV) {
129 if (SvGMAGICAL(sv)) {
135 if (op->op_flags & OPf_REF ||
136 op->op_private & HINT_STRICT_REFS)
137 DIE(no_usym, "a symbol");
141 if (op->op_private & HINT_STRICT_REFS)
142 DIE(no_symref, sym, "a symbol");
143 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
146 if (op->op_private & OPpLVAL_INTRO)
147 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
159 switch (SvTYPE(sv)) {
163 DIE("Not a SCALAR reference");
170 if (SvTYPE(gv) != SVt_PVGV) {
171 if (SvGMAGICAL(sv)) {
177 if (op->op_flags & OPf_REF ||
178 op->op_private & HINT_STRICT_REFS)
179 DIE(no_usym, "a SCALAR");
183 if (op->op_private & HINT_STRICT_REFS)
184 DIE(no_symref, sym, "a SCALAR");
185 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
189 if (op->op_flags & OPf_MOD) {
190 if (op->op_private & OPpLVAL_INTRO)
191 sv = save_scalar((GV*)TOPs);
192 else if (op->op_private & OPpDEREF)
203 SV *sv = AvARYLEN(av);
205 AvARYLEN(av) = sv = NEWSV(0,0);
206 sv_upgrade(sv, SVt_IV);
207 sv_magic(sv, (SV*)av, '#', Nullch, 0);
215 dSP; dTARGET; dPOPss;
217 if (op->op_flags & OPf_MOD) {
218 if (SvTYPE(TARG) < SVt_PVLV) {
219 sv_upgrade(TARG, SVt_PVLV);
220 sv_magic(TARG, Nullsv, '.', Nullch, 0);
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));
253 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
270 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
272 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
280 CV* cv = (CV*)curpad[op->op_targ];
282 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
298 if (GIMME != G_ARRAY) {
302 EXTEND_MORTAL(SP - MARK);
304 *MARK = refto(*MARK);
314 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
320 else if (SvPADTMP(sv))
324 (void)SvREFCNT_inc(sv);
327 sv_upgrade(rv, SVt_RV);
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;
427 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
430 XPUSHs(sv_2mortal(newSViv((I32)retval)));
439 if (op->op_flags & OPf_STACKED)
445 TARG = sv_newmortal();
446 PUSHi(do_trans(sv, op));
450 /* Lvalue operators. */
472 SETi(do_chomp(TOPs));
479 register I32 count = 0;
482 count += do_chomp(POPs);
493 if (!sv || !SvANY(sv))
495 switch (SvTYPE(sv)) {
497 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
501 if (HvARRAY(sv) || SvRMAGICAL(sv))
505 if (CvROOT(sv) || CvXSUB(sv))
522 if (!op->op_private) {
531 if (SvTHINKFIRST(sv)) {
538 switch (SvTYPE(sv)) {
552 sv_setsv(sv, &sv_undef);
555 if (SvPOK(sv) && SvLEN(sv)) {
558 SvPV_set(sv, Nullch);
571 if (SvREADONLY(TOPs))
573 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
574 SvIVX(TOPs) != IV_MIN)
577 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
588 if (SvREADONLY(TOPs))
590 sv_setsv(TARG, TOPs);
591 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
592 SvIVX(TOPs) != IV_MAX)
595 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
611 sv_setsv(TARG, TOPs);
612 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
613 SvIVX(TOPs) != IV_MIN)
616 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
625 /* Ordinary operators. */
629 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
632 SETn( pow( left, right) );
639 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
642 SETn( left * right );
649 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
654 DIE("Illegal division by zero");
656 /* insure that 20./5. == 4. */
659 if ((double)I_V(left) == left &&
660 (double)I_V(right) == right &&
661 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
664 value = left / right;
668 value = left / right;
677 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
683 DIE("Illegal modulus zero");
685 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
686 register IV left = SvIVX(TOPs);
688 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
690 SETi( left % right );
693 register double left = TOPn;
695 SETu( (right - (U_V(-left) - 1) % right) - 1 );
697 SETu( U_V(left) % right );
705 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
707 register I32 count = POPi;
708 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
710 I32 items = SP - MARK;
722 repeatcpy((char*)(MARK + items), (char*)MARK,
723 items * sizeof(SV*), count - 1);
729 else { /* Note: mark already snarfed by pp_list */
734 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
735 if (SvREADONLY(tmpstr) && curcop != &compiling)
736 DIE("Can't x= to readonly value");
740 SvSetSV(TARG, tmpstr);
741 SvPV_force(TARG, len);
746 SvGROW(TARG, (count * len) + 1);
747 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
748 SvCUR(TARG) *= count;
752 (void)SvPOK_only(TARG);
761 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
764 SETn( left - right );
771 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
774 if (op->op_private & HINT_INTEGER) {
788 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
791 if (op->op_private & HINT_INTEGER) {
805 dSP; tryAMAGICbinSET(lt,0);
808 SETs((TOPn < value) ? &sv_yes : &sv_no);
815 dSP; tryAMAGICbinSET(gt,0);
818 SETs((TOPn > value) ? &sv_yes : &sv_no);
825 dSP; tryAMAGICbinSET(le,0);
828 SETs((TOPn <= value) ? &sv_yes : &sv_no);
835 dSP; tryAMAGICbinSET(ge,0);
838 SETs((TOPn >= value) ? &sv_yes : &sv_no);
845 dSP; tryAMAGICbinSET(ne,0);
848 SETs((TOPn != value) ? &sv_yes : &sv_no);
855 dSP; dTARGET; tryAMAGICbin(ncmp,0);
862 else if (left < right)
864 else if (left > right)
877 dSP; tryAMAGICbinSET(slt,0);
880 int cmp = ((op->op_private & OPpLOCALE)
881 ? sv_cmp_locale(left, right)
882 : sv_cmp(left, right));
883 SETs( cmp < 0 ? &sv_yes : &sv_no );
890 dSP; tryAMAGICbinSET(sgt,0);
893 int cmp = ((op->op_private & OPpLOCALE)
894 ? sv_cmp_locale(left, right)
895 : sv_cmp(left, right));
896 SETs( cmp > 0 ? &sv_yes : &sv_no );
903 dSP; tryAMAGICbinSET(sle,0);
906 int cmp = ((op->op_private & OPpLOCALE)
907 ? sv_cmp_locale(left, right)
908 : sv_cmp(left, right));
909 SETs( cmp <= 0 ? &sv_yes : &sv_no );
916 dSP; tryAMAGICbinSET(sge,0);
919 int cmp = ((op->op_private & OPpLOCALE)
920 ? sv_cmp_locale(left, right)
921 : sv_cmp(left, right));
922 SETs( cmp >= 0 ? &sv_yes : &sv_no );
929 dSP; tryAMAGICbinSET(seq,0);
932 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
939 dSP; tryAMAGICbinSET(sne,0);
942 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
949 dSP; dTARGET; tryAMAGICbin(scmp,0);
952 int cmp = ((op->op_private & OPpLOCALE)
953 ? sv_cmp_locale(left, right)
954 : sv_cmp(left, right));
962 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
965 if (SvNIOKp(left) || SvNIOKp(right)) {
966 if (op->op_private & HINT_INTEGER) {
967 IBW value = SvIV(left) & SvIV(right);
971 UBW value = SvUV(left) & SvUV(right);
976 do_vop(op->op_type, TARG, left, right);
985 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
988 if (SvNIOKp(left) || SvNIOKp(right)) {
989 if (op->op_private & HINT_INTEGER) {
990 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
994 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
999 do_vop(op->op_type, TARG, left, right);
1008 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1011 if (SvNIOKp(left) || SvNIOKp(right)) {
1012 if (op->op_private & HINT_INTEGER) {
1013 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1017 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1022 do_vop(op->op_type, TARG, left, right);
1031 dSP; dTARGET; tryAMAGICun(neg);
1036 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1038 else if (SvNIOKp(sv))
1040 else if (SvPOKp(sv)) {
1042 char *s = SvPV(sv, len);
1043 if (isIDFIRST(*s)) {
1044 sv_setpvn(TARG, "-", 1);
1047 else if (*s == '+' || *s == '-') {
1049 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1052 sv_setnv(TARG, -SvNV(sv));
1064 dSP; tryAMAGICunSET(not);
1065 #endif /* OVERLOAD */
1066 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1072 dSP; dTARGET; tryAMAGICun(compl);
1076 if (op->op_private & HINT_INTEGER) {
1077 IBW value = ~SvIV(sv);
1081 UBW value = ~SvUV(sv);
1086 register char *tmps;
1087 register long *tmpl;
1092 tmps = SvPV_force(TARG, len);
1095 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1098 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1102 for ( ; anum > 0; anum--, tmps++)
1111 /* integer versions of some of the above */
1115 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1118 SETi( left * right );
1125 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1129 DIE("Illegal division by zero");
1130 value = POPi / value;
1138 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1142 DIE("Illegal modulus zero");
1143 SETi( left % right );
1150 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1153 SETi( left + right );
1160 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1163 SETi( left - right );
1170 dSP; tryAMAGICbinSET(lt,0);
1173 SETs((left < right) ? &sv_yes : &sv_no);
1180 dSP; tryAMAGICbinSET(gt,0);
1183 SETs((left > right) ? &sv_yes : &sv_no);
1190 dSP; tryAMAGICbinSET(le,0);
1193 SETs((left <= right) ? &sv_yes : &sv_no);
1200 dSP; tryAMAGICbinSET(ge,0);
1203 SETs((left >= right) ? &sv_yes : &sv_no);
1210 dSP; tryAMAGICbinSET(eq,0);
1213 SETs((left == right) ? &sv_yes : &sv_no);
1220 dSP; tryAMAGICbinSET(ne,0);
1223 SETs((left != right) ? &sv_yes : &sv_no);
1230 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1237 else if (left < right)
1248 dSP; dTARGET; tryAMAGICun(neg);
1253 /* High falutin' math. */
1257 dSP; dTARGET; tryAMAGICbin(atan2,0);
1260 SETn(atan2(left, right));
1267 dSP; dTARGET; tryAMAGICun(sin);
1279 dSP; dTARGET; tryAMAGICun(cos);
1300 value = rand() * value / 2147483648.0;
1303 value = rand() * value / 65536.0;
1306 value = rand() * value / 32768.0;
1308 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1323 # include <starlet.h>
1324 unsigned int when[2];
1325 _ckvmssts(sys$gettim(when));
1326 anum = when[0] ^ when[1];
1328 # ifdef HAS_GETTIMEOFDAY
1329 struct timeval when;
1330 gettimeofday(&when,(struct timezone *) 0);
1331 anum = when.tv_sec ^ when.tv_usec;
1338 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1339 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1340 /* What is a good hashing algorithm here? */
1341 anum ^= ( ( 269 * (U32)getpid())
1342 ^ (26107 * (U32)&when)
1343 ^ (73819 * (U32)stack_sp));
1355 dSP; dTARGET; tryAMAGICun(exp);
1367 dSP; dTARGET; tryAMAGICun(log);
1372 SET_NUMERIC_STANDARD();
1373 DIE("Can't take log of %g", value);
1383 dSP; dTARGET; tryAMAGICun(sqrt);
1388 SET_NUMERIC_STANDARD();
1389 DIE("Can't take sqrt of %g", value);
1391 value = sqrt(value);
1401 double value = TOPn;
1404 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1410 (void)modf(value, &value);
1412 (void)modf(-value, &value);
1427 dSP; dTARGET; tryAMAGICun(abs);
1429 double value = TOPn;
1432 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1433 (iv = SvIVX(TOPs)) != IV_MIN) {
1454 XPUSHu(scan_hex(tmps, 99, &argtype));
1466 while (*tmps && isSPACE(*tmps))
1471 value = scan_hex(++tmps, 99, &argtype);
1473 value = scan_oct(tmps, 99, &argtype);
1483 SETi( sv_len(TOPs) );
1495 I32 lvalue = op->op_flags & OPf_MOD;
1497 I32 arybase = curcop->cop_arybase;
1501 pos = POPi - arybase;
1503 tmps = SvPV(sv, curlen);
1505 pos += curlen + arybase;
1506 if (pos < 0 || pos > curlen) {
1507 if (dowarn || lvalue)
1508 warn("substr outside of string");
1515 len += curlen - pos;
1520 rem = curlen - pos; /* rem=how many bytes left*/
1523 sv_setpvn(TARG, tmps, rem);
1524 if (lvalue) { /* it's an lvalue! */
1525 if (!SvGMAGICAL(sv)) {
1529 warn("Attempt to use reference as lvalue in substr");
1531 if (SvOK(sv)) /* is it defined ? */
1532 (void)SvPOK_only(sv);
1534 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1537 if (SvTYPE(TARG) < SVt_PVLV) {
1538 sv_upgrade(TARG, SVt_PVLV);
1539 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1544 LvTARGOFF(TARG) = pos;
1545 LvTARGLEN(TARG) = rem;
1548 PUSHs(TARG); /* avoid SvSETMAGIC here */
1555 register I32 size = POPi;
1556 register I32 offset = POPi;
1557 register SV *src = POPs;
1558 I32 lvalue = op->op_flags & OPf_MOD;
1560 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1561 unsigned long retnum;
1564 offset *= size; /* turn into bit offset */
1565 len = (offset + size + 7) / 8;
1566 if (offset < 0 || size < 1)
1569 if (lvalue) { /* it's an lvalue! */
1570 if (SvTYPE(TARG) < SVt_PVLV) {
1571 sv_upgrade(TARG, SVt_PVLV);
1572 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1577 LvTARGOFF(TARG) = offset;
1578 LvTARGLEN(TARG) = size;
1586 if (offset >= srclen)
1589 retnum = (unsigned long) s[offset] << 8;
1591 else if (size == 32) {
1592 if (offset >= srclen)
1594 else if (offset + 1 >= srclen)
1595 retnum = (unsigned long) s[offset] << 24;
1596 else if (offset + 2 >= srclen)
1597 retnum = ((unsigned long) s[offset] << 24) +
1598 ((unsigned long) s[offset + 1] << 16);
1600 retnum = ((unsigned long) s[offset] << 24) +
1601 ((unsigned long) s[offset + 1] << 16) +
1602 (s[offset + 2] << 8);
1607 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1612 else if (size == 16)
1613 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1614 else if (size == 32)
1615 retnum = ((unsigned long) s[offset] << 24) +
1616 ((unsigned long) s[offset + 1] << 16) +
1617 (s[offset + 2] << 8) + s[offset+3];
1621 sv_setiv(TARG, (I32)retnum);
1636 I32 arybase = curcop->cop_arybase;
1641 offset = POPi - arybase;
1644 tmps = SvPV(big, biglen);
1647 else if (offset > biglen)
1649 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1650 (unsigned char*)tmps + biglen, little)))
1651 retval = -1 + arybase;
1653 retval = tmps2 - tmps + arybase;
1670 I32 arybase = curcop->cop_arybase;
1676 tmps2 = SvPV(little, llen);
1677 tmps = SvPV(big, blen);
1681 offset = SvIV(offstr) - arybase + llen;
1684 else if (offset > blen)
1686 if (!(tmps2 = rninstr(tmps, tmps + offset,
1687 tmps2, tmps2 + llen)))
1688 retval = -1 + arybase;
1690 retval = tmps2 - tmps + arybase;
1697 dSP; dMARK; dORIGMARK; dTARGET;
1698 #ifdef USE_LOCALE_NUMERIC
1699 if (op->op_private & OPpLOCALE)
1700 SET_NUMERIC_LOCAL();
1702 SET_NUMERIC_STANDARD();
1704 do_sprintf(TARG, SP-MARK, MARK+1);
1705 TAINT_IF(SvTAINTED(TARG));
1719 value = (I32) (*tmps & 255);
1724 value = (I32) (anum & 255);
1735 (void)SvUPGRADE(TARG,SVt_PV);
1741 (void)SvPOK_only(TARG);
1748 dSP; dTARGET; dPOPTOPssrl;
1750 char *tmps = SvPV(left, na);
1752 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1754 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1758 "The crypt() function is unimplemented due to excessive paranoia.");
1770 if (!SvPADTMP(sv)) {
1776 s = SvPV_force(sv, na);
1778 if (op->op_private & OPpLOCALE) {
1781 *s = toUPPER_LC(*s);
1796 if (!SvPADTMP(sv)) {
1802 s = SvPV_force(sv, na);
1804 if (op->op_private & OPpLOCALE) {
1807 *s = toLOWER_LC(*s);
1824 if (!SvPADTMP(sv)) {
1831 s = SvPV_force(sv, len);
1833 register char *send = s + len;
1835 if (op->op_private & OPpLOCALE) {
1838 for (; s < send; s++)
1839 *s = toUPPER_LC(*s);
1842 for (; s < send; s++)
1856 if (!SvPADTMP(sv)) {
1863 s = SvPV_force(sv, len);
1865 register char *send = s + len;
1867 if (op->op_private & OPpLOCALE) {
1870 for (; s < send; s++)
1871 *s = toLOWER_LC(*s);
1874 for (; s < send; s++)
1886 register char *s = SvPV(sv,len);
1890 (void)SvUPGRADE(TARG, SVt_PV);
1891 SvGROW(TARG, (len * 2) + 1);
1899 SvCUR_set(TARG, d - SvPVX(TARG));
1900 (void)SvPOK_only(TARG);
1903 sv_setpvn(TARG, s, len);
1912 dSP; dMARK; dORIGMARK;
1914 register AV* av = (AV*)POPs;
1915 register I32 lval = op->op_flags & OPf_MOD;
1916 I32 arybase = curcop->cop_arybase;
1919 if (SvTYPE(av) == SVt_PVAV) {
1920 if (lval && op->op_private & OPpLVAL_INTRO) {
1922 for (svp = mark + 1; svp <= sp; svp++) {
1927 if (max > AvMAX(av))
1930 while (++MARK <= SP) {
1931 elem = SvIVx(*MARK);
1935 svp = av_fetch(av, elem, lval);
1937 if (!svp || *svp == &sv_undef)
1938 DIE(no_aelem, elem);
1939 if (op->op_private & OPpLVAL_INTRO)
1942 *MARK = svp ? *svp : &sv_undef;
1945 if (GIMME != G_ARRAY) {
1953 /* Associative arrays. */
1958 HV *hash = (HV*)POPs;
1962 entry = hv_iternext(hash); /* might clobber stack_sp */
1967 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1968 if (GIMME == G_ARRAY) {
1970 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1975 else if (GIMME == G_SCALAR)
1997 if (op->op_private & OPpSLICE) {
2000 if (SvTYPE(hv) != SVt_PVHV)
2001 DIE("Not a HASH reference");
2002 while (++MARK <= SP) {
2003 sv = hv_delete_ent(hv, *MARK,
2004 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2005 *MARK = sv ? sv : &sv_undef;
2007 if (GIMME != G_ARRAY) {
2016 if (SvTYPE(hv) != SVt_PVHV)
2017 DIE("Not a HASH reference");
2018 sv = hv_delete_ent(hv, keysv,
2019 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2033 if (SvTYPE(hv) != SVt_PVHV) {
2034 DIE("Not a HASH reference");
2036 if (hv_exists_ent(hv, tmpsv, 0))
2043 dSP; dMARK; dORIGMARK;
2045 register HV *hv = (HV*)POPs;
2046 register I32 lval = op->op_flags & OPf_MOD;
2048 if (SvTYPE(hv) == SVt_PVHV) {
2049 while (++MARK <= SP) {
2052 he = hv_fetch_ent(hv, keysv, lval, 0);
2054 if (!he || HeVAL(he) == &sv_undef)
2055 DIE(no_helem, SvPV(keysv, na));
2056 if (op->op_private & OPpLVAL_INTRO)
2057 save_svref(&HeVAL(he));
2059 *MARK = he ? HeVAL(he) : &sv_undef;
2062 if (GIMME != G_ARRAY) {
2070 /* List operators. */
2075 if (GIMME != G_ARRAY) {
2077 *MARK = *SP; /* unwanted list, return last item */
2088 SV **lastrelem = stack_sp;
2089 SV **lastlelem = stack_base + POPMARK;
2090 SV **firstlelem = stack_base + POPMARK + 1;
2091 register SV **firstrelem = lastlelem + 1;
2092 I32 arybase = curcop->cop_arybase;
2093 I32 lval = op->op_flags & OPf_MOD;
2094 I32 is_something_there = lval;
2096 register I32 max = lastrelem - lastlelem;
2097 register SV **lelem;
2100 if (GIMME != G_ARRAY) {
2101 ix = SvIVx(*lastlelem);
2106 if (ix < 0 || ix >= max)
2107 *firstlelem = &sv_undef;
2109 *firstlelem = firstrelem[ix];
2115 SP = firstlelem - 1;
2119 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2125 else if (!(*lelem = firstrelem[ix]))
2130 if (ix >= max || !(*lelem = firstrelem[ix]))
2133 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2134 is_something_there = TRUE;
2136 if (is_something_there)
2139 SP = firstlelem - 1;
2145 dSP; dMARK; dORIGMARK;
2146 I32 items = SP - MARK;
2147 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2148 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2155 dSP; dMARK; dORIGMARK;
2156 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2160 SV *val = NEWSV(46, 0);
2162 sv_setsv(val, *++MARK);
2164 warn("Odd number of elements in hash list");
2165 (void)hv_store_ent(hv,key,val,0);
2174 dSP; dMARK; dORIGMARK;
2175 register AV *ary = (AV*)*++MARK;
2179 register I32 offset;
2180 register I32 length;
2189 offset = SvIVx(*MARK);
2191 offset += AvFILL(ary) + 1;
2193 offset -= curcop->cop_arybase;
2195 length = SvIVx(*MARK++);
2200 length = AvMAX(ary) + 1; /* close enough to infinity */
2204 length = AvMAX(ary) + 1;
2212 if (offset > AvFILL(ary) + 1)
2213 offset = AvFILL(ary) + 1;
2214 after = AvFILL(ary) + 1 - (offset + length);
2215 if (after < 0) { /* not that much array */
2216 length += after; /* offset+length now in array */
2222 /* At this point, MARK .. SP-1 is our new LIST */
2225 diff = newlen - length;
2227 if (diff < 0) { /* shrinking the area */
2229 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2230 Copy(MARK, tmparyval, newlen, SV*);
2233 MARK = ORIGMARK + 1;
2234 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2235 MEXTEND(MARK, length);
2236 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2238 EXTEND_MORTAL(length);
2239 for (i = length, dst = MARK; i; i--) {
2240 if (!SvIMMORTAL(*dst))
2241 sv_2mortal(*dst); /* free them eventualy */
2248 *MARK = AvARRAY(ary)[offset+length-1];
2250 if (!SvIMMORTAL(*MARK))
2252 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2253 SvREFCNT_dec(*dst++); /* free them now */
2256 AvFILL(ary) += diff;
2258 /* pull up or down? */
2260 if (offset < after) { /* easier to pull up */
2261 if (offset) { /* esp. if nothing to pull */
2262 src = &AvARRAY(ary)[offset-1];
2263 dst = src - diff; /* diff is negative */
2264 for (i = offset; i > 0; i--) /* can't trust Copy */
2268 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2272 if (after) { /* anything to pull down? */
2273 src = AvARRAY(ary) + offset + length;
2274 dst = src + diff; /* diff is negative */
2275 Move(src, dst, after, SV*);
2277 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2278 /* avoid later double free */
2282 dst[--i] = &sv_undef;
2285 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2287 *dst = NEWSV(46, 0);
2288 sv_setsv(*dst++, *src++);
2290 Safefree(tmparyval);
2293 else { /* no, expanding (or same) */
2295 New(452, tmparyval, length, SV*); /* so remember deletion */
2296 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2299 if (diff > 0) { /* expanding */
2301 /* push up or down? */
2303 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2307 Move(src, dst, offset, SV*);
2309 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2311 AvFILL(ary) += diff;
2314 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2315 av_extend(ary, AvFILL(ary) + diff);
2316 AvFILL(ary) += diff;
2319 dst = AvARRAY(ary) + AvFILL(ary);
2321 for (i = after; i; i--) {
2328 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2329 *dst = NEWSV(46, 0);
2330 sv_setsv(*dst++, *src++);
2332 MARK = ORIGMARK + 1;
2333 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2335 Copy(tmparyval, MARK, length, SV*);
2337 EXTEND_MORTAL(length);
2338 for (i = length, dst = MARK; i; i--) {
2339 if (!SvIMMORTAL(*dst))
2340 sv_2mortal(*dst); /* free them eventualy */
2344 Safefree(tmparyval);
2348 else if (length--) {
2349 *MARK = tmparyval[length];
2351 if (!SvIMMORTAL(*MARK))
2353 while (length-- > 0)
2354 SvREFCNT_dec(tmparyval[length]);
2356 Safefree(tmparyval);
2367 dSP; dMARK; dORIGMARK; dTARGET;
2368 register AV *ary = (AV*)*++MARK;
2369 register SV *sv = &sv_undef;
2371 for (++MARK; MARK <= SP; MARK++) {
2374 sv_setsv(sv, *MARK);
2378 PUSHi( AvFILL(ary) + 1 );
2386 SV *sv = av_pop(av);
2387 if (!SvIMMORTAL(sv) && AvREAL(av))
2388 (void)sv_2mortal(sv);
2397 SV *sv = av_shift(av);
2401 if (!SvIMMORTAL(sv) && AvREAL(av))
2402 (void)sv_2mortal(sv);
2409 dSP; dMARK; dORIGMARK; dTARGET;
2410 register AV *ary = (AV*)*++MARK;
2414 av_unshift(ary, SP - MARK);
2417 sv_setsv(sv, *++MARK);
2418 (void)av_store(ary, i++, sv);
2422 PUSHi( AvFILL(ary) + 1 );
2432 if (GIMME == G_ARRAY) {
2443 register char *down;
2449 do_join(TARG, &sv_no, MARK, SP);
2451 sv_setsv(TARG, *SP);
2452 up = SvPV_force(TARG, len);
2454 down = SvPVX(TARG) + len - 1;
2460 (void)SvPOK_only(TARG);
2474 char *s = SvPV(sv, len);
2478 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2479 SV *new = newSVpv("0000000000", 10);
2482 SvREFCNT_dec(sv); /* free old sv */
2487 while (!*t) /* trailing '\0'? */
2490 i = ((*t - '0') << 7) + m;
2491 *(t--) = '0' + (i % 10);
2497 /* Explosives and implosives. */
2507 register char *pat = SvPV(left, llen);
2508 register char *s = SvPV(right, rlen);
2509 char *strend = s + rlen;
2511 register char *patend = pat + llen;
2516 /* These must not be in registers: */
2527 unsigned Quad_t auquad;
2533 register U32 culong;
2535 static char* bitcount = 0;
2537 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2539 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2540 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2542 while (isDIGIT(*patend) || *patend == '*')
2548 while (pat < patend) {
2553 else if (*pat == '*') {
2554 len = strend - strbeg; /* long enough */
2557 else if (isDIGIT(*pat)) {
2559 while (isDIGIT(*pat))
2560 len = (len * 10) + (*pat++ - '0');
2563 len = (datumtype != '@');
2568 if (len == 1 && pat[-1] != '1')
2577 if (len > strend - strbeg)
2578 DIE("@ outside of string");
2582 if (len > s - strbeg)
2583 DIE("X outside of string");
2587 if (len > strend - s)
2588 DIE("x outside of string");
2593 if (len > strend - s)
2596 goto uchar_checksum;
2597 sv = NEWSV(35, len);
2598 sv_setpvn(sv, s, len);
2600 if (datumtype == 'A') {
2601 aptr = s; /* borrow register */
2602 s = SvPVX(sv) + len - 1;
2603 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2606 SvCUR_set(sv, s - SvPVX(sv));
2607 s = aptr; /* unborrow register */
2609 XPUSHs(sv_2mortal(sv));
2613 if (pat[-1] == '*' || len > (strend - s) * 8)
2614 len = (strend - s) * 8;
2617 Newz(601, bitcount, 256, char);
2618 for (bits = 1; bits < 256; bits++) {
2619 if (bits & 1) bitcount[bits]++;
2620 if (bits & 2) bitcount[bits]++;
2621 if (bits & 4) bitcount[bits]++;
2622 if (bits & 8) bitcount[bits]++;
2623 if (bits & 16) bitcount[bits]++;
2624 if (bits & 32) bitcount[bits]++;
2625 if (bits & 64) bitcount[bits]++;
2626 if (bits & 128) bitcount[bits]++;
2630 culong += bitcount[*(unsigned char*)s++];
2635 if (datumtype == 'b') {
2637 if (bits & 1) culong++;
2643 if (bits & 128) culong++;
2650 sv = NEWSV(35, len + 1);
2653 aptr = pat; /* borrow register */
2655 if (datumtype == 'b') {
2657 for (len = 0; len < aint; len++) {
2658 if (len & 7) /*SUPPRESS 595*/
2662 *pat++ = '0' + (bits & 1);
2667 for (len = 0; len < aint; len++) {
2672 *pat++ = '0' + ((bits & 128) != 0);
2676 pat = aptr; /* unborrow register */
2677 XPUSHs(sv_2mortal(sv));
2681 if (pat[-1] == '*' || len > (strend - s) * 2)
2682 len = (strend - s) * 2;
2683 sv = NEWSV(35, len + 1);
2686 aptr = pat; /* borrow register */
2688 if (datumtype == 'h') {
2690 for (len = 0; len < aint; len++) {
2695 *pat++ = hexdigit[bits & 15];
2700 for (len = 0; len < aint; len++) {
2705 *pat++ = hexdigit[(bits >> 4) & 15];
2709 pat = aptr; /* unborrow register */
2710 XPUSHs(sv_2mortal(sv));
2713 if (len > strend - s)
2718 if (aint >= 128) /* fake up signed chars */
2728 if (aint >= 128) /* fake up signed chars */
2731 sv_setiv(sv, (I32)aint);
2732 PUSHs(sv_2mortal(sv));
2737 if (len > strend - s)
2752 sv_setiv(sv, (I32)auint);
2753 PUSHs(sv_2mortal(sv));
2758 along = (strend - s) / sizeof(I16);
2763 Copy(s, &ashort, 1, I16);
2772 Copy(s, &ashort, 1, I16);
2775 sv_setiv(sv, (I32)ashort);
2776 PUSHs(sv_2mortal(sv));
2783 along = (strend - s) / sizeof(U16);
2788 Copy(s, &aushort, 1, U16);
2791 if (datumtype == 'n')
2792 aushort = ntohs(aushort);
2795 if (datumtype == 'v')
2796 aushort = vtohs(aushort);
2805 Copy(s, &aushort, 1, U16);
2809 if (datumtype == 'n')
2810 aushort = ntohs(aushort);
2813 if (datumtype == 'v')
2814 aushort = vtohs(aushort);
2816 sv_setiv(sv, (I32)aushort);
2817 PUSHs(sv_2mortal(sv));
2822 along = (strend - s) / sizeof(int);
2827 Copy(s, &aint, 1, int);
2830 cdouble += (double)aint;
2839 Copy(s, &aint, 1, int);
2842 sv_setiv(sv, (I32)aint);
2843 PUSHs(sv_2mortal(sv));
2848 along = (strend - s) / sizeof(unsigned int);
2853 Copy(s, &auint, 1, unsigned int);
2854 s += sizeof(unsigned int);
2856 cdouble += (double)auint;
2865 Copy(s, &auint, 1, unsigned int);
2866 s += sizeof(unsigned int);
2868 if (auint <= I32_MAX)
2869 sv_setiv(sv, (I32)auint);
2871 sv_setnv(sv, (double)auint);
2872 PUSHs(sv_2mortal(sv));
2877 along = (strend - s) / sizeof(I32);
2882 Copy(s, &along, 1, I32);
2885 cdouble += (double)along;
2894 Copy(s, &along, 1, I32);
2897 sv_setiv(sv, (I32)along);
2898 PUSHs(sv_2mortal(sv));
2905 along = (strend - s) / sizeof(U32);
2910 Copy(s, &aulong, 1, U32);
2913 if (datumtype == 'N')
2914 aulong = ntohl(aulong);
2917 if (datumtype == 'V')
2918 aulong = vtohl(aulong);
2921 cdouble += (double)aulong;
2930 Copy(s, &aulong, 1, U32);
2934 if (datumtype == 'N')
2935 aulong = ntohl(aulong);
2938 if (datumtype == 'V')
2939 aulong = vtohl(aulong);
2941 sv_setnv(sv, (double)aulong);
2942 PUSHs(sv_2mortal(sv));
2947 along = (strend - s) / sizeof(char*);
2953 if (sizeof(char*) > strend - s)
2956 Copy(s, &aptr, 1, char*);
2962 PUSHs(sv_2mortal(sv));
2972 while ((len > 0) && (s < strend)) {
2973 auv = (auv << 7) | (*s & 0x7f);
2974 if (!(*s++ & 0x80)) {
2978 PUSHs(sv_2mortal(sv));
2982 else if (++bytes >= sizeof(UV)) { /* promote to string */
2983 char decn[sizeof(UV) * 3 + 1];
2986 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2987 sv = newSVpv(decn, 0);
2988 while (s < strend) {
2989 sv = mul128(sv, *s & 0x7f);
2990 if (!(*s++ & 0x80)) {
2999 PUSHs(sv_2mortal(sv));
3004 if ((s >= strend) && bytes)
3005 croak("Unterminated compressed integer");
3010 if (sizeof(char*) > strend - s)
3013 Copy(s, &aptr, 1, char*);
3018 sv_setpvn(sv, aptr, len);
3019 PUSHs(sv_2mortal(sv));
3026 if (s + sizeof(Quad_t) > strend)
3029 Copy(s, &aquad, 1, Quad_t);
3030 s += sizeof(Quad_t);
3033 sv_setiv(sv, (IV)aquad);
3034 PUSHs(sv_2mortal(sv));
3041 if (s + sizeof(unsigned Quad_t) > strend)
3044 Copy(s, &auquad, 1, unsigned Quad_t);
3045 s += sizeof(unsigned Quad_t);
3048 sv_setiv(sv, (IV)auquad);
3049 PUSHs(sv_2mortal(sv));
3053 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3056 along = (strend - s) / sizeof(float);
3061 Copy(s, &afloat, 1, float);
3070 Copy(s, &afloat, 1, float);
3073 sv_setnv(sv, (double)afloat);
3074 PUSHs(sv_2mortal(sv));
3080 along = (strend - s) / sizeof(double);
3085 Copy(s, &adouble, 1, double);
3086 s += sizeof(double);
3094 Copy(s, &adouble, 1, double);
3095 s += sizeof(double);
3097 sv_setnv(sv, (double)adouble);
3098 PUSHs(sv_2mortal(sv));
3103 along = (strend - s) * 3 / 4;
3104 sv = NEWSV(42, along);
3107 while (s < strend && *s > ' ' && *s < 'a') {
3112 len = (*s++ - ' ') & 077;
3114 if (s < strend && *s >= ' ')
3115 a = (*s++ - ' ') & 077;
3118 if (s < strend && *s >= ' ')
3119 b = (*s++ - ' ') & 077;
3122 if (s < strend && *s >= ' ')
3123 c = (*s++ - ' ') & 077;
3126 if (s < strend && *s >= ' ')
3127 d = (*s++ - ' ') & 077;
3130 hunk[0] = a << 2 | b >> 4;
3131 hunk[1] = b << 4 | c >> 2;
3132 hunk[2] = c << 6 | d;
3133 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3138 else if (s[1] == '\n') /* possible checksum byte */
3141 XPUSHs(sv_2mortal(sv));
3146 if (strchr("fFdD", datumtype) ||
3147 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3151 while (checksum >= 16) {
3155 while (checksum >= 4) {
3161 along = (1 << checksum) - 1;
3162 while (cdouble < 0.0)
3164 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3165 sv_setnv(sv, cdouble);
3168 if (checksum < 32) {
3169 along = (1 << checksum) - 1;
3170 culong &= (U32)along;
3172 sv_setnv(sv, (double)culong);
3174 XPUSHs(sv_2mortal(sv));
3178 if (sp == oldsp && GIMME != G_ARRAY)
3184 doencodes(sv, s, len)
3192 sv_catpvn(sv, hunk, 1);
3195 hunk[0] = ' ' + (077 & (*s >> 2));
3196 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3197 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3198 hunk[3] = ' ' + (077 & (s[2] & 077));
3199 sv_catpvn(sv, hunk, 4);
3203 for (s = SvPVX(sv); *s; s++) {
3207 sv_catpvn(sv, "\n", 1);
3215 SV *result = newSVpv("", l);
3216 char *result_c = SvPV(result, na); /* convenience */
3217 char *out = result_c;
3227 SvREFCNT_dec(result);
3250 SvREFCNT_dec(result);
3256 SvCUR_set(result, out - result_c);
3262 SV *pnum; /* must be '\0' terminated */
3266 char *s = SvPV(pnum, len);
3275 i = m * 10 + (*t - '0');
3277 r = (i >> 7); /* r < 10 */
3284 SvCUR_set(pnum, (STRLEN) (t - s));
3291 dSP; dMARK; dORIGMARK; dTARGET;
3292 register SV *cat = TARG;
3295 register char *pat = SvPVx(*++MARK, fromlen);
3296 register char *patend = pat + fromlen;
3301 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3302 static char *space10 = " ";
3304 /* These must not be in registers: */
3313 unsigned Quad_t auquad;
3321 sv_setpvn(cat, "", 0);
3322 while (pat < patend) {
3323 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3326 len = strchr("@Xxu", datumtype) ? 0 : items;
3329 else if (isDIGIT(*pat)) {
3331 while (isDIGIT(*pat))
3332 len = (len * 10) + (*pat++ - '0');
3340 DIE("%% may only be used in unpack");
3351 if (SvCUR(cat) < len)
3352 DIE("X outside of string");
3359 sv_catpvn(cat, null10, 10);
3362 sv_catpvn(cat, null10, len);
3367 aptr = SvPV(fromstr, fromlen);
3371 sv_catpvn(cat, aptr, len);
3373 sv_catpvn(cat, aptr, fromlen);
3375 if (datumtype == 'A') {
3377 sv_catpvn(cat, space10, 10);
3380 sv_catpvn(cat, space10, len);
3384 sv_catpvn(cat, null10, 10);
3387 sv_catpvn(cat, null10, len);
3394 char *savepat = pat;
3399 aptr = SvPV(fromstr, fromlen);
3404 SvCUR(cat) += (len+7)/8;
3405 SvGROW(cat, SvCUR(cat) + 1);
3406 aptr = SvPVX(cat) + aint;
3411 if (datumtype == 'B') {
3412 for (len = 0; len++ < aint;) {
3413 items |= *pat++ & 1;
3417 *aptr++ = items & 0xff;
3423 for (len = 0; len++ < aint;) {
3429 *aptr++ = items & 0xff;
3435 if (datumtype == 'B')
3436 items <<= 7 - (aint & 7);
3438 items >>= 7 - (aint & 7);
3439 *aptr++ = items & 0xff;
3441 pat = SvPVX(cat) + SvCUR(cat);
3452 char *savepat = pat;
3457 aptr = SvPV(fromstr, fromlen);
3462 SvCUR(cat) += (len+1)/2;
3463 SvGROW(cat, SvCUR(cat) + 1);
3464 aptr = SvPVX(cat) + aint;
3469 if (datumtype == 'H') {
3470 for (len = 0; len++ < aint;) {
3472 items |= ((*pat++ & 15) + 9) & 15;
3474 items |= *pat++ & 15;
3478 *aptr++ = items & 0xff;
3484 for (len = 0; len++ < aint;) {
3486 items |= (((*pat++ & 15) + 9) & 15) << 4;
3488 items |= (*pat++ & 15) << 4;
3492 *aptr++ = items & 0xff;
3498 *aptr++ = items & 0xff;
3499 pat = SvPVX(cat) + SvCUR(cat);
3511 aint = SvIV(fromstr);
3513 sv_catpvn(cat, &achar, sizeof(char));
3516 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3521 afloat = (float)SvNV(fromstr);
3522 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3529 adouble = (double)SvNV(fromstr);
3530 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3536 ashort = (I16)SvIV(fromstr);
3538 ashort = htons(ashort);
3540 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3546 ashort = (I16)SvIV(fromstr);
3548 ashort = htovs(ashort);
3550 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3557 ashort = (I16)SvIV(fromstr);
3558 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3564 auint = U_I(SvNV(fromstr));
3565 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3571 adouble = floor(SvNV(fromstr));
3574 croak("Cannot compress negative numbers");
3576 if (adouble <= UV_MAX) {
3577 char buf[1 + sizeof(UV)];
3578 char *in = buf + sizeof(buf);
3579 UV auv = U_V(adouble);;
3582 *--in = (auv & 0x7f) | 0x80;
3585 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3586 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3588 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3589 char *from, *result, *in;
3594 /* Copy string and check for compliance */
3595 from = SvPV(fromstr, len);
3596 if ((norm = is_an_int(from, len)) == NULL)
3597 croak("can compress only unsigned integer");
3599 New('w', result, len, char);
3603 *--in = div128(norm, &done) | 0x80;
3604 result[len - 1] &= 0x7F; /* clear continue bit */
3605 sv_catpvn(cat, in, (result + len) - in);
3607 SvREFCNT_dec(norm); /* free norm */
3609 else if (SvNOKp(fromstr)) {
3610 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3611 char *in = buf + sizeof(buf);
3614 double next = floor(adouble / 128);
3615 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3616 if (--in < buf) /* this cannot happen ;-) */
3617 croak ("Cannot compress integer");
3619 } while (adouble > 0);
3620 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3621 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3624 croak("Cannot compress non integer");
3630 aint = SvIV(fromstr);
3631 sv_catpvn(cat, (char*)&aint, sizeof(int));
3637 aulong = U_L(SvNV(fromstr));
3639 aulong = htonl(aulong);
3641 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3647 aulong = U_L(SvNV(fromstr));
3649 aulong = htovl(aulong);
3651 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3657 aulong = U_L(SvNV(fromstr));
3658 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3664 along = SvIV(fromstr);
3665 sv_catpvn(cat, (char*)&along, sizeof(I32));
3672 auquad = (unsigned Quad_t)SvIV(fromstr);
3673 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3679 aquad = (Quad_t)SvIV(fromstr);
3680 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3683 #endif /* HAS_QUAD */
3685 len = 1; /* assume SV is correct length */
3690 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3691 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3696 aptr = SvPV(fromstr, fromlen);
3697 SvGROW(cat, fromlen * 4 / 3);
3702 while (fromlen > 0) {
3709 doencodes(cat, aptr, todo);
3727 register I32 limit = POPi; /* note, negative is forever */
3730 register char *s = SvPV(sv, len);
3731 char *strend = s + len;
3733 register REGEXP *rx;
3737 I32 maxiters = (strend - s) + 10;
3740 I32 origlimit = limit;
3743 AV *oldstack = curstack;
3745 I32 oldsave = savestack_ix;
3748 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3753 DIE("panic: do_split");
3754 rx = pm->op_pmregexp;
3756 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3757 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3759 if (pm->op_pmreplroot)
3760 ary = GvAVn((GV*)pm->op_pmreplroot);
3761 else if (gimme != G_ARRAY)
3765 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3769 for (i = AvFILL(ary); i >= 0; i--)
3770 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3774 /* temporarily switch stacks */
3775 SWITCHSTACK(curstack, ary);
3777 base = SP - stack_base;
3779 if (pm->op_pmflags & PMf_SKIPWHITE) {
3780 if (pm->op_pmflags & PMf_LOCALE) {
3781 while (isSPACE_LC(*s))
3789 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3791 multiline = pm->op_pmflags & PMf_MULTILINE;
3795 limit = maxiters + 2;
3796 if (pm->op_pmflags & PMf_WHITE) {
3799 while (m < strend &&
3800 !((pm->op_pmflags & PMf_LOCALE)
3801 ? isSPACE_LC(*m) : isSPACE(*m)))
3806 dstr = NEWSV(30, m-s);
3807 sv_setpvn(dstr, s, m-s);
3813 while (s < strend &&
3814 ((pm->op_pmflags & PMf_LOCALE)
3815 ? isSPACE_LC(*s) : isSPACE(*s)))
3819 else if (strEQ("^", rx->precomp)) {
3822 for (m = s; m < strend && *m != '\n'; m++) ;
3826 dstr = NEWSV(30, m-s);
3827 sv_setpvn(dstr, s, m-s);
3834 else if (pm->op_pmshort && !rx->nparens) {
3835 i = SvCUR(pm->op_pmshort);
3837 i = *SvPVX(pm->op_pmshort);
3840 for (m = s; m < strend && *m != i; m++) ;
3843 dstr = NEWSV(30, m-s);
3844 sv_setpvn(dstr, s, m-s);
3853 while (s < strend && --limit &&
3854 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3858 dstr = NEWSV(31, m-s);
3859 sv_setpvn(dstr, s, m-s);
3868 maxiters += (strend - s) * rx->nparens;
3869 while (s < strend && --limit &&
3870 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3872 TAINT_IF(rx->exec_tainted);
3874 && rx->subbase != orig) {
3879 strend = s + (strend - m);
3882 dstr = NEWSV(32, m-s);
3883 sv_setpvn(dstr, s, m-s);
3888 for (i = 1; i <= rx->nparens; i++) {
3892 dstr = NEWSV(33, m-s);
3893 sv_setpvn(dstr, s, m-s);
3896 dstr = NEWSV(33, 0);
3905 LEAVE_SCOPE(oldsave);
3906 iters = (SP - stack_base) - base;
3907 if (iters > maxiters)
3910 /* keep field after final delim? */
3911 if (s < strend || (iters && origlimit)) {
3912 dstr = NEWSV(34, strend-s);
3913 sv_setpvn(dstr, s, strend-s);
3919 else if (!origlimit) {
3920 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3924 SWITCHSTACK(ary, oldstack);
3925 if (gimme == G_ARRAY) {
3927 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3933 if (gimme == G_ARRAY)
3936 if (iters || !pm->op_pmreplroot) {