3 * Copyright (c) 1991-1997, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "It's a big house this, and very peculiar. Always a bit more to discover,
12 * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise
19 * Types used in bitwise operations.
21 * Normally we'd just use IV and UV. However, some hardware and
22 * software combinations (e.g. Alpha and current OSF/1) don't have a
23 * floating-point type to use for NV that has adequate bits to fully
24 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
26 * It just so happens that "int" is the right size everywhere, at
32 static void doencodes _((SV* sv, char* s, I32 len));
33 static SV* refto _((SV* sv));
34 static U32 seed _((void));
36 static bool srand_called = FALSE;
38 /* variations on pp_null */
43 if (GIMME != G_ARRAY) {
59 if (op->op_private & OPpLVAL_INTRO)
60 SAVECLEARSV(curpad[op->op_targ]);
62 if (op->op_flags & OPf_REF) {
66 if (GIMME == G_ARRAY) {
67 I32 maxarg = AvFILL((AV*)TARG) + 1;
69 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
73 SV* sv = sv_newmortal();
74 I32 maxarg = AvFILL((AV*)TARG) + 1;
85 if (op->op_private & OPpLVAL_INTRO)
86 SAVECLEARSV(curpad[op->op_targ]);
87 if (op->op_flags & OPf_REF)
89 if (GIMME == G_ARRAY) { /* array wanted */
90 RETURNOP(do_kv(ARGS));
93 SV* sv = sv_newmortal();
94 if (HvFILL((HV*)TARG)) {
95 sprintf(buf, "%ld/%ld",
96 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG)+1);
108 DIE("NOT IMPL LINE %d",__LINE__);
120 if (SvTYPE(sv) == SVt_PVIO) {
121 GV *gv = (GV*) sv_newmortal();
122 gv_init(gv, 0, "", 0, 0);
123 GvIOp(gv) = (IO *)sv;
126 } else if (SvTYPE(sv) != SVt_PVGV)
127 DIE("Not a GLOB reference");
130 if (SvTYPE(sv) != SVt_PVGV) {
133 if (SvGMAGICAL(sv)) {
139 if (op->op_flags & OPf_REF ||
140 op->op_private & HINT_STRICT_REFS)
141 DIE(no_usym, "a symbol");
147 if (op->op_private & HINT_STRICT_REFS)
148 DIE(no_symref, sym, "a symbol");
149 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
152 if (op->op_private & OPpLVAL_INTRO)
153 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
165 switch (SvTYPE(sv)) {
169 DIE("Not a SCALAR reference");
176 if (SvTYPE(gv) != SVt_PVGV) {
177 if (SvGMAGICAL(sv)) {
183 if (op->op_flags & OPf_REF ||
184 op->op_private & HINT_STRICT_REFS)
185 DIE(no_usym, "a SCALAR");
191 if (op->op_private & HINT_STRICT_REFS)
192 DIE(no_symref, sym, "a SCALAR");
193 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
197 if (op->op_flags & OPf_MOD) {
198 if (op->op_private & OPpLVAL_INTRO)
199 sv = save_scalar((GV*)TOPs);
200 else if (op->op_private & OPpDEREF)
211 SV *sv = AvARYLEN(av);
213 AvARYLEN(av) = sv = NEWSV(0,0);
214 sv_upgrade(sv, SVt_IV);
215 sv_magic(sv, (SV*)av, '#', Nullch, 0);
223 dSP; dTARGET; dPOPss;
225 if (op->op_flags & OPf_MOD) {
226 if (SvTYPE(TARG) < SVt_PVLV) {
227 sv_upgrade(TARG, SVt_PVLV);
228 sv_magic(TARG, Nullsv, '.', Nullch, 0);
233 PUSHs(TARG); /* no SvSETMAGIC */
239 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
240 mg = mg_find(sv, 'g');
241 if (mg && mg->mg_len >= 0) {
242 PUSHi(mg->mg_len + curcop->cop_arybase);
256 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
257 /* (But not in defined().) */
258 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
261 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
278 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
280 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
288 CV* cv = (CV*)curpad[op->op_targ];
290 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
306 if (GIMME != G_ARRAY) {
310 EXTEND_MORTAL(SP - MARK);
312 *MARK = refto(*MARK);
322 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
328 else if (SvPADTMP(sv))
332 (void)SvREFCNT_inc(sv);
335 sv_upgrade(rv, SVt_RV);
349 if (sv && SvGMAGICAL(sv))
352 if (!sv || !SvROK(sv))
356 pv = sv_reftype(sv,TRUE);
357 PUSHp(pv, strlen(pv));
367 stash = curcop->cop_stash;
369 stash = gv_stashsv(POPs, TRUE);
371 (void)sv_bless(TOPs, stash);
375 /* Pattern matching */
380 register unsigned char *s;
383 register I32 *sfirst;
387 if (sv == lastscream) {
393 SvSCREAM_off(lastscream);
394 SvREFCNT_dec(lastscream);
396 lastscream = SvREFCNT_inc(sv);
399 s = (unsigned char*)(SvPV(sv, len));
403 if (pos > maxscream) {
405 maxscream = pos + 80;
406 New(301, screamfirst, 256, I32);
407 New(302, screamnext, maxscream, I32);
410 maxscream = pos + pos / 4;
411 Renew(screamnext, maxscream, I32);
415 sfirst = screamfirst;
418 if (!sfirst || !snext)
419 DIE("do_study: out of memory");
421 for (ch = 256; ch; --ch)
428 snext[pos] = sfirst[ch] - pos;
435 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
444 if (op->op_flags & OPf_STACKED)
450 TARG = sv_newmortal();
451 PUSHi(do_trans(sv, op));
455 /* Lvalue operators. */
477 SETi(do_chomp(TOPs));
484 register I32 count = 0;
487 count += do_chomp(POPs);
498 if (!sv || !SvANY(sv))
500 switch (SvTYPE(sv)) {
502 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
506 if (HvARRAY(sv) || SvRMAGICAL(sv))
510 if (CvROOT(sv) || CvXSUB(sv))
527 if (!op->op_private) {
536 if (SvTHINKFIRST(sv)) {
543 switch (SvTYPE(sv)) {
553 if (!CvANON((CV*)sv) && cv_const_sv((CV*)sv))
554 warn("Constant subroutine %s undefined",
555 GvENAME(CvGV((CV*)sv)));
562 sv_setsv(sv, &sv_undef);
565 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
568 SvPV_set(sv, Nullch);
581 if (SvREADONLY(TOPs))
583 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
584 SvIVX(TOPs) != IV_MIN)
587 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
598 if (SvREADONLY(TOPs))
600 sv_setsv(TARG, TOPs);
601 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
602 SvIVX(TOPs) != IV_MAX)
605 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
621 sv_setsv(TARG, TOPs);
622 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
623 SvIVX(TOPs) != IV_MIN)
626 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
635 /* Ordinary operators. */
639 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
642 SETn( pow( left, right) );
649 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
652 SETn( left * right );
659 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
664 DIE("Illegal division by zero");
666 /* insure that 20./5. == 4. */
669 if ((double)I_V(left) == left &&
670 (double)I_V(right) == right &&
671 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
674 value = left / right;
678 value = left / right;
687 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
693 DIE("Illegal modulus zero");
695 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
696 register IV left = SvIVX(TOPs);
698 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
700 SETi( left % right );
703 register double left = TOPn;
705 SETu( (right - (U_V(-left) - 1) % right) - 1 );
707 SETu( U_V(left) % right );
715 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
717 register I32 count = POPi;
718 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
720 I32 items = SP - MARK;
732 repeatcpy((char*)(MARK + items), (char*)MARK,
733 items * sizeof(SV*), count - 1);
739 else { /* Note: mark already snarfed by pp_list */
744 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
745 if (SvREADONLY(tmpstr) && curcop != &compiling)
746 DIE("Can't x= to readonly value");
750 SvSetSV(TARG, tmpstr);
751 SvPV_force(TARG, len);
756 SvGROW(TARG, (count * len) + 1);
757 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
758 SvCUR(TARG) *= count;
762 (void)SvPOK_only(TARG);
771 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
774 SETn( left - right );
781 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
784 if (op->op_private & HINT_INTEGER) {
798 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
801 if (op->op_private & HINT_INTEGER) {
815 dSP; tryAMAGICbinSET(lt,0);
818 SETs((TOPn < value) ? &sv_yes : &sv_no);
825 dSP; tryAMAGICbinSET(gt,0);
828 SETs((TOPn > value) ? &sv_yes : &sv_no);
835 dSP; tryAMAGICbinSET(le,0);
838 SETs((TOPn <= value) ? &sv_yes : &sv_no);
845 dSP; tryAMAGICbinSET(ge,0);
848 SETs((TOPn >= value) ? &sv_yes : &sv_no);
855 dSP; tryAMAGICbinSET(ne,0);
858 SETs((TOPn != value) ? &sv_yes : &sv_no);
865 dSP; dTARGET; tryAMAGICbin(ncmp,0);
872 else if (left < right)
874 else if (left > right)
887 dSP; tryAMAGICbinSET(slt,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(sgt,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(sle,0);
916 int cmp = ((op->op_private & OPpLOCALE)
917 ? sv_cmp_locale(left, right)
918 : sv_cmp(left, right));
919 SETs( cmp <= 0 ? &sv_yes : &sv_no );
926 dSP; tryAMAGICbinSET(sge,0);
929 int cmp = ((op->op_private & OPpLOCALE)
930 ? sv_cmp_locale(left, right)
931 : sv_cmp(left, right));
932 SETs( cmp >= 0 ? &sv_yes : &sv_no );
939 dSP; tryAMAGICbinSET(seq,0);
942 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
949 dSP; tryAMAGICbinSET(sne,0);
952 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
959 dSP; dTARGET; tryAMAGICbin(scmp,0);
962 int cmp = ((op->op_private & OPpLOCALE)
963 ? sv_cmp_locale(left, right)
964 : sv_cmp(left, right));
972 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
975 if (SvNIOKp(left) || SvNIOKp(right)) {
976 if (op->op_private & HINT_INTEGER) {
977 IBW value = SvIV(left) & SvIV(right);
981 UBW value = SvUV(left) & SvUV(right);
986 do_vop(op->op_type, TARG, left, right);
995 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
998 if (SvNIOKp(left) || SvNIOKp(right)) {
999 if (op->op_private & HINT_INTEGER) {
1000 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1004 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1009 do_vop(op->op_type, TARG, left, right);
1018 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1021 if (SvNIOKp(left) || SvNIOKp(right)) {
1022 if (op->op_private & HINT_INTEGER) {
1023 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1027 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1032 do_vop(op->op_type, TARG, left, right);
1041 dSP; dTARGET; tryAMAGICun(neg);
1046 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1048 else if (SvNIOKp(sv))
1050 else if (SvPOKp(sv)) {
1052 char *s = SvPV(sv, len);
1053 if (isIDFIRST(*s)) {
1054 sv_setpvn(TARG, "-", 1);
1057 else if (*s == '+' || *s == '-') {
1059 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1062 sv_setnv(TARG, -SvNV(sv));
1074 dSP; tryAMAGICunSET(not);
1075 #endif /* OVERLOAD */
1076 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1082 dSP; dTARGET; tryAMAGICun(compl);
1086 if (op->op_private & HINT_INTEGER) {
1087 IBW value = ~SvIV(sv);
1091 UBW value = ~SvUV(sv);
1096 register char *tmps;
1097 register long *tmpl;
1102 tmps = SvPV_force(TARG, len);
1105 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1108 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1112 for ( ; anum > 0; anum--, tmps++)
1121 /* integer versions of some of the above */
1125 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1128 SETi( left * right );
1135 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1139 DIE("Illegal division by zero");
1140 value = POPi / value;
1148 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1152 DIE("Illegal modulus zero");
1153 SETi( left % right );
1160 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1163 SETi( left + right );
1170 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1173 SETi( left - right );
1180 dSP; tryAMAGICbinSET(lt,0);
1183 SETs((left < right) ? &sv_yes : &sv_no);
1190 dSP; tryAMAGICbinSET(gt,0);
1193 SETs((left > right) ? &sv_yes : &sv_no);
1200 dSP; tryAMAGICbinSET(le,0);
1203 SETs((left <= right) ? &sv_yes : &sv_no);
1210 dSP; tryAMAGICbinSET(ge,0);
1213 SETs((left >= right) ? &sv_yes : &sv_no);
1220 dSP; tryAMAGICbinSET(eq,0);
1223 SETs((left == right) ? &sv_yes : &sv_no);
1230 dSP; tryAMAGICbinSET(ne,0);
1233 SETs((left != right) ? &sv_yes : &sv_no);
1240 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1247 else if (left < right)
1258 dSP; dTARGET; tryAMAGICun(neg);
1263 /* High falutin' math. */
1267 dSP; dTARGET; tryAMAGICbin(atan2,0);
1270 SETn(atan2(left, right));
1277 dSP; dTARGET; tryAMAGICun(sin);
1289 dSP; dTARGET; tryAMAGICun(cos);
1309 if (!srand_called) {
1310 (void)srand((unsigned)seed());
1311 srand_called = TRUE;
1314 value = rand() * value / 2147483648.0;
1317 value = rand() * value / 65536.0;
1320 value = rand() * value / 32768.0;
1322 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1338 (void)srand((unsigned)anum);
1339 srand_called = TRUE;
1349 # include <starlet.h>
1350 unsigned int when[2];
1351 _ckvmssts(sys$gettim(when));
1352 u = when[0] ^ when[1];
1354 # ifdef HAS_GETTIMEOFDAY
1355 struct timeval when;
1356 gettimeofday(&when,(struct timezone *) 0);
1357 u = when.tv_sec ^ when.tv_usec;
1364 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1365 /* What is a good hashing algorithm here? */
1366 u ^= ( ( 269 * (U32)getpid())
1367 ^ (26107 * (U32)&when)
1368 ^ (73819 * (U32)stack_sp));
1375 dSP; dTARGET; tryAMAGICun(exp);
1387 dSP; dTARGET; tryAMAGICun(log);
1392 SET_NUMERIC_STANDARD();
1393 DIE("Can't take log of %g", value);
1403 dSP; dTARGET; tryAMAGICun(sqrt);
1408 SET_NUMERIC_STANDARD();
1409 DIE("Can't take sqrt of %g", value);
1411 value = sqrt(value);
1421 double value = TOPn;
1424 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1430 (void)modf(value, &value);
1432 (void)modf(-value, &value);
1447 dSP; dTARGET; tryAMAGICun(abs);
1449 double value = TOPn;
1452 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1453 (iv = SvIVX(TOPs)) != IV_MIN) {
1474 XPUSHu(scan_hex(tmps, 99, &argtype));
1486 while (*tmps && isSPACE(*tmps))
1491 value = scan_hex(++tmps, 99, &argtype);
1493 value = scan_oct(tmps, 99, &argtype);
1503 SETi( sv_len(TOPs) );
1515 I32 lvalue = op->op_flags & OPf_MOD;
1517 I32 arybase = curcop->cop_arybase;
1521 pos = POPi - arybase;
1523 tmps = SvPV(sv, curlen);
1525 pos += curlen + arybase;
1526 if (pos < 0 || pos > curlen) {
1527 if (dowarn || lvalue)
1528 warn("substr outside of string");
1535 len += curlen - pos;
1540 rem = curlen - pos; /* rem=how many bytes left*/
1543 sv_setpvn(TARG, tmps, rem);
1544 if (lvalue) { /* it's an lvalue! */
1545 if (!SvGMAGICAL(sv)) {
1549 warn("Attempt to use reference as lvalue in substr");
1551 if (SvOK(sv)) /* is it defined ? */
1552 (void)SvPOK_only(sv);
1554 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1557 if (SvTYPE(TARG) < SVt_PVLV) {
1558 sv_upgrade(TARG, SVt_PVLV);
1559 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1564 LvTARGOFF(TARG) = pos;
1565 LvTARGLEN(TARG) = rem;
1568 PUSHs(TARG); /* avoid SvSETMAGIC here */
1575 register I32 size = POPi;
1576 register I32 offset = POPi;
1577 register SV *src = POPs;
1578 I32 lvalue = op->op_flags & OPf_MOD;
1580 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1581 unsigned long retnum;
1584 offset *= size; /* turn into bit offset */
1585 len = (offset + size + 7) / 8;
1586 if (offset < 0 || size < 1)
1589 if (lvalue) { /* it's an lvalue! */
1590 if (SvTYPE(TARG) < SVt_PVLV) {
1591 sv_upgrade(TARG, SVt_PVLV);
1592 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1597 LvTARGOFF(TARG) = offset;
1598 LvTARGLEN(TARG) = size;
1606 if (offset >= srclen)
1609 retnum = (unsigned long) s[offset] << 8;
1611 else if (size == 32) {
1612 if (offset >= srclen)
1614 else if (offset + 1 >= srclen)
1615 retnum = (unsigned long) s[offset] << 24;
1616 else if (offset + 2 >= srclen)
1617 retnum = ((unsigned long) s[offset] << 24) +
1618 ((unsigned long) s[offset + 1] << 16);
1620 retnum = ((unsigned long) s[offset] << 24) +
1621 ((unsigned long) s[offset + 1] << 16) +
1622 (s[offset + 2] << 8);
1627 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1632 else if (size == 16)
1633 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1634 else if (size == 32)
1635 retnum = ((unsigned long) s[offset] << 24) +
1636 ((unsigned long) s[offset + 1] << 16) +
1637 (s[offset + 2] << 8) + s[offset+3];
1641 sv_setiv(TARG, (IV)retnum);
1656 I32 arybase = curcop->cop_arybase;
1661 offset = POPi - arybase;
1664 tmps = SvPV(big, biglen);
1667 else if (offset > biglen)
1669 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1670 (unsigned char*)tmps + biglen, little)))
1671 retval = -1 + arybase;
1673 retval = tmps2 - tmps + arybase;
1690 I32 arybase = curcop->cop_arybase;
1696 tmps2 = SvPV(little, llen);
1697 tmps = SvPV(big, blen);
1701 offset = SvIV(offstr) - arybase + llen;
1704 else if (offset > blen)
1706 if (!(tmps2 = rninstr(tmps, tmps + offset,
1707 tmps2, tmps2 + llen)))
1708 retval = -1 + arybase;
1710 retval = tmps2 - tmps + arybase;
1717 dSP; dMARK; dORIGMARK; dTARGET;
1718 #ifdef USE_LOCALE_NUMERIC
1719 if (op->op_private & OPpLOCALE)
1720 SET_NUMERIC_LOCAL();
1722 SET_NUMERIC_STANDARD();
1724 do_sprintf(TARG, SP-MARK, MARK+1);
1725 TAINT_IF(SvTAINTED(TARG));
1739 value = (I32) (*tmps & 255);
1744 value = (I32) (anum & 255);
1755 (void)SvUPGRADE(TARG,SVt_PV);
1761 (void)SvPOK_only(TARG);
1768 dSP; dTARGET; dPOPTOPssrl;
1770 char *tmps = SvPV(left, na);
1772 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1774 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1778 "The crypt() function is unimplemented due to excessive paranoia.");
1790 if (!SvPADTMP(sv)) {
1796 s = SvPV_force(sv, na);
1798 if (op->op_private & OPpLOCALE) {
1801 *s = toUPPER_LC(*s);
1816 if (!SvPADTMP(sv)) {
1822 s = SvPV_force(sv, na);
1824 if (op->op_private & OPpLOCALE) {
1827 *s = toLOWER_LC(*s);
1844 if (!SvPADTMP(sv)) {
1851 s = SvPV_force(sv, len);
1853 register char *send = s + len;
1855 if (op->op_private & OPpLOCALE) {
1858 for (; s < send; s++)
1859 *s = toUPPER_LC(*s);
1862 for (; s < send; s++)
1876 if (!SvPADTMP(sv)) {
1883 s = SvPV_force(sv, len);
1885 register char *send = s + len;
1887 if (op->op_private & OPpLOCALE) {
1890 for (; s < send; s++)
1891 *s = toLOWER_LC(*s);
1894 for (; s < send; s++)
1906 register char *s = SvPV(sv,len);
1910 (void)SvUPGRADE(TARG, SVt_PV);
1911 SvGROW(TARG, (len * 2) + 1);
1919 SvCUR_set(TARG, d - SvPVX(TARG));
1920 (void)SvPOK_only(TARG);
1923 sv_setpvn(TARG, s, len);
1932 dSP; dMARK; dORIGMARK;
1934 register AV* av = (AV*)POPs;
1935 register I32 lval = op->op_flags & OPf_MOD;
1936 I32 arybase = curcop->cop_arybase;
1939 if (SvTYPE(av) == SVt_PVAV) {
1940 if (lval && op->op_private & OPpLVAL_INTRO) {
1942 for (svp = mark + 1; svp <= sp; svp++) {
1947 if (max > AvMAX(av))
1950 while (++MARK <= SP) {
1951 elem = SvIVx(*MARK);
1955 svp = av_fetch(av, elem, lval);
1957 if (!svp || *svp == &sv_undef)
1958 DIE(no_aelem, elem);
1959 if (op->op_private & OPpLVAL_INTRO)
1962 *MARK = svp ? *svp : &sv_undef;
1965 if (GIMME != G_ARRAY) {
1973 /* Associative arrays. */
1978 HV *hash = (HV*)POPs;
1982 entry = hv_iternext(hash); /* might clobber stack_sp */
1987 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1988 if (GIMME == G_ARRAY) {
1990 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1995 else if (GIMME == G_SCALAR)
2017 if (op->op_private & OPpSLICE) {
2020 if (SvTYPE(hv) != SVt_PVHV)
2021 DIE("Not a HASH reference");
2022 while (++MARK <= SP) {
2023 sv = hv_delete_ent(hv, *MARK,
2024 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2025 *MARK = sv ? sv : &sv_undef;
2027 if (GIMME != G_ARRAY) {
2036 if (SvTYPE(hv) != SVt_PVHV)
2037 DIE("Not a HASH reference");
2038 sv = hv_delete_ent(hv, keysv,
2039 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2053 if (SvTYPE(hv) != SVt_PVHV) {
2054 DIE("Not a HASH reference");
2056 if (hv_exists_ent(hv, tmpsv, 0))
2063 dSP; dMARK; dORIGMARK;
2065 register HV *hv = (HV*)POPs;
2066 register I32 lval = op->op_flags & OPf_MOD;
2068 if (SvTYPE(hv) == SVt_PVHV) {
2069 while (++MARK <= SP) {
2072 he = hv_fetch_ent(hv, keysv, lval, 0);
2074 if (!he || HeVAL(he) == &sv_undef)
2075 DIE(no_helem, SvPV(keysv, na));
2076 if (op->op_private & OPpLVAL_INTRO)
2077 save_svref(&HeVAL(he));
2079 *MARK = he ? HeVAL(he) : &sv_undef;
2082 if (GIMME != G_ARRAY) {
2090 /* List operators. */
2095 if (GIMME != G_ARRAY) {
2097 *MARK = *SP; /* unwanted list, return last item */
2108 SV **lastrelem = stack_sp;
2109 SV **lastlelem = stack_base + POPMARK;
2110 SV **firstlelem = stack_base + POPMARK + 1;
2111 register SV **firstrelem = lastlelem + 1;
2112 I32 arybase = curcop->cop_arybase;
2113 I32 lval = op->op_flags & OPf_MOD;
2114 I32 is_something_there = lval;
2116 register I32 max = lastrelem - lastlelem;
2117 register SV **lelem;
2120 if (GIMME != G_ARRAY) {
2121 ix = SvIVx(*lastlelem);
2126 if (ix < 0 || ix >= max)
2127 *firstlelem = &sv_undef;
2129 *firstlelem = firstrelem[ix];
2135 SP = firstlelem - 1;
2139 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2145 else if (!(*lelem = firstrelem[ix]))
2150 if (ix >= max || !(*lelem = firstrelem[ix]))
2153 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2154 is_something_there = TRUE;
2156 if (is_something_there)
2159 SP = firstlelem - 1;
2165 dSP; dMARK; dORIGMARK;
2166 I32 items = SP - MARK;
2167 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2168 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2175 dSP; dMARK; dORIGMARK;
2176 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2180 SV *val = NEWSV(46, 0);
2182 sv_setsv(val, *++MARK);
2184 warn("Odd number of elements in hash list");
2185 (void)hv_store_ent(hv,key,val,0);
2194 dSP; dMARK; dORIGMARK;
2195 register AV *ary = (AV*)*++MARK;
2199 register I32 offset;
2200 register I32 length;
2209 offset = SvIVx(*MARK);
2211 offset += AvFILL(ary) + 1;
2213 offset -= curcop->cop_arybase;
2215 length = SvIVx(*MARK++);
2220 length = AvMAX(ary) + 1; /* close enough to infinity */
2224 length = AvMAX(ary) + 1;
2232 if (offset > AvFILL(ary) + 1)
2233 offset = AvFILL(ary) + 1;
2234 after = AvFILL(ary) + 1 - (offset + length);
2235 if (after < 0) { /* not that much array */
2236 length += after; /* offset+length now in array */
2242 /* At this point, MARK .. SP-1 is our new LIST */
2245 diff = newlen - length;
2247 if (diff < 0) { /* shrinking the area */
2249 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2250 Copy(MARK, tmparyval, newlen, SV*);
2253 MARK = ORIGMARK + 1;
2254 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2255 MEXTEND(MARK, length);
2256 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2258 EXTEND_MORTAL(length);
2259 for (i = length, dst = MARK; i; i--) {
2260 if (!SvIMMORTAL(*dst))
2261 sv_2mortal(*dst); /* free them eventualy */
2268 *MARK = AvARRAY(ary)[offset+length-1];
2270 if (!SvIMMORTAL(*MARK))
2272 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2273 SvREFCNT_dec(*dst++); /* free them now */
2276 AvFILL(ary) += diff;
2278 /* pull up or down? */
2280 if (offset < after) { /* easier to pull up */
2281 if (offset) { /* esp. if nothing to pull */
2282 src = &AvARRAY(ary)[offset-1];
2283 dst = src - diff; /* diff is negative */
2284 for (i = offset; i > 0; i--) /* can't trust Copy */
2288 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2292 if (after) { /* anything to pull down? */
2293 src = AvARRAY(ary) + offset + length;
2294 dst = src + diff; /* diff is negative */
2295 Move(src, dst, after, SV*);
2297 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2298 /* avoid later double free */
2302 dst[--i] = &sv_undef;
2305 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2307 *dst = NEWSV(46, 0);
2308 sv_setsv(*dst++, *src++);
2310 Safefree(tmparyval);
2313 else { /* no, expanding (or same) */
2315 New(452, tmparyval, length, SV*); /* so remember deletion */
2316 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2319 if (diff > 0) { /* expanding */
2321 /* push up or down? */
2323 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2327 Move(src, dst, offset, SV*);
2329 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2331 AvFILL(ary) += diff;
2334 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2335 av_extend(ary, AvFILL(ary) + diff);
2336 AvFILL(ary) += diff;
2339 dst = AvARRAY(ary) + AvFILL(ary);
2341 for (i = after; i; i--) {
2348 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2349 *dst = NEWSV(46, 0);
2350 sv_setsv(*dst++, *src++);
2352 MARK = ORIGMARK + 1;
2353 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2355 Copy(tmparyval, MARK, length, SV*);
2357 EXTEND_MORTAL(length);
2358 for (i = length, dst = MARK; i; i--) {
2359 if (!SvIMMORTAL(*dst))
2360 sv_2mortal(*dst); /* free them eventualy */
2364 Safefree(tmparyval);
2368 else if (length--) {
2369 *MARK = tmparyval[length];
2371 if (!SvIMMORTAL(*MARK))
2373 while (length-- > 0)
2374 SvREFCNT_dec(tmparyval[length]);
2376 Safefree(tmparyval);
2387 dSP; dMARK; dORIGMARK; dTARGET;
2388 register AV *ary = (AV*)*++MARK;
2389 register SV *sv = &sv_undef;
2391 for (++MARK; MARK <= SP; MARK++) {
2394 sv_setsv(sv, *MARK);
2398 PUSHi( AvFILL(ary) + 1 );
2406 SV *sv = av_pop(av);
2407 if (!SvIMMORTAL(sv) && AvREAL(av))
2408 (void)sv_2mortal(sv);
2417 SV *sv = av_shift(av);
2421 if (!SvIMMORTAL(sv) && AvREAL(av))
2422 (void)sv_2mortal(sv);
2429 dSP; dMARK; dORIGMARK; dTARGET;
2430 register AV *ary = (AV*)*++MARK;
2434 av_unshift(ary, SP - MARK);
2437 sv_setsv(sv, *++MARK);
2438 (void)av_store(ary, i++, sv);
2442 PUSHi( AvFILL(ary) + 1 );
2452 if (GIMME == G_ARRAY) {
2463 register char *down;
2469 do_join(TARG, &sv_no, MARK, SP);
2471 sv_setsv(TARG, *SP);
2472 up = SvPV_force(TARG, len);
2474 down = SvPVX(TARG) + len - 1;
2480 (void)SvPOK_only(TARG);
2494 char *s = SvPV(sv, len);
2498 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2499 SV *new = newSVpv("0000000000", 10);
2502 SvREFCNT_dec(sv); /* free old sv */
2507 while (!*t) /* trailing '\0'? */
2510 i = ((*t - '0') << 7) + m;
2511 *(t--) = '0' + (i % 10);
2517 /* Explosives and implosives. */
2527 register char *pat = SvPV(left, llen);
2528 register char *s = SvPV(right, rlen);
2529 char *strend = s + rlen;
2531 register char *patend = pat + llen;
2536 /* These must not be in registers: */
2547 unsigned Quad_t auquad;
2553 register U32 culong;
2555 static char* bitcount = 0;
2557 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2559 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2560 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2562 while (isDIGIT(*patend) || *patend == '*')
2568 while (pat < patend) {
2573 else if (*pat == '*') {
2574 len = strend - strbeg; /* long enough */
2577 else if (isDIGIT(*pat)) {
2579 while (isDIGIT(*pat))
2580 len = (len * 10) + (*pat++ - '0');
2583 len = (datumtype != '@');
2588 if (len == 1 && pat[-1] != '1')
2597 if (len > strend - strbeg)
2598 DIE("@ outside of string");
2602 if (len > s - strbeg)
2603 DIE("X outside of string");
2607 if (len > strend - s)
2608 DIE("x outside of string");
2613 if (len > strend - s)
2616 goto uchar_checksum;
2617 sv = NEWSV(35, len);
2618 sv_setpvn(sv, s, len);
2620 if (datumtype == 'A') {
2621 aptr = s; /* borrow register */
2622 s = SvPVX(sv) + len - 1;
2623 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2626 SvCUR_set(sv, s - SvPVX(sv));
2627 s = aptr; /* unborrow register */
2629 XPUSHs(sv_2mortal(sv));
2633 if (pat[-1] == '*' || len > (strend - s) * 8)
2634 len = (strend - s) * 8;
2637 Newz(601, bitcount, 256, char);
2638 for (bits = 1; bits < 256; bits++) {
2639 if (bits & 1) bitcount[bits]++;
2640 if (bits & 2) bitcount[bits]++;
2641 if (bits & 4) bitcount[bits]++;
2642 if (bits & 8) bitcount[bits]++;
2643 if (bits & 16) bitcount[bits]++;
2644 if (bits & 32) bitcount[bits]++;
2645 if (bits & 64) bitcount[bits]++;
2646 if (bits & 128) bitcount[bits]++;
2650 culong += bitcount[*(unsigned char*)s++];
2655 if (datumtype == 'b') {
2657 if (bits & 1) culong++;
2663 if (bits & 128) culong++;
2670 sv = NEWSV(35, len + 1);
2673 aptr = pat; /* borrow register */
2675 if (datumtype == 'b') {
2677 for (len = 0; len < aint; len++) {
2678 if (len & 7) /*SUPPRESS 595*/
2682 *pat++ = '0' + (bits & 1);
2687 for (len = 0; len < aint; len++) {
2692 *pat++ = '0' + ((bits & 128) != 0);
2696 pat = aptr; /* unborrow register */
2697 XPUSHs(sv_2mortal(sv));
2701 if (pat[-1] == '*' || len > (strend - s) * 2)
2702 len = (strend - s) * 2;
2703 sv = NEWSV(35, len + 1);
2706 aptr = pat; /* borrow register */
2708 if (datumtype == 'h') {
2710 for (len = 0; len < aint; len++) {
2715 *pat++ = hexdigit[bits & 15];
2720 for (len = 0; len < aint; len++) {
2725 *pat++ = hexdigit[(bits >> 4) & 15];
2729 pat = aptr; /* unborrow register */
2730 XPUSHs(sv_2mortal(sv));
2733 if (len > strend - s)
2738 if (aint >= 128) /* fake up signed chars */
2748 if (aint >= 128) /* fake up signed chars */
2751 sv_setiv(sv, (IV)aint);
2752 PUSHs(sv_2mortal(sv));
2757 if (len > strend - s)
2772 sv_setiv(sv, (IV)auint);
2773 PUSHs(sv_2mortal(sv));
2778 along = (strend - s) / sizeof(I16);
2783 Copy(s, &ashort, 1, I16);
2792 Copy(s, &ashort, 1, I16);
2795 sv_setiv(sv, (IV)ashort);
2796 PUSHs(sv_2mortal(sv));
2803 along = (strend - s) / sizeof(U16);
2808 Copy(s, &aushort, 1, U16);
2811 if (datumtype == 'n')
2812 aushort = ntohs(aushort);
2815 if (datumtype == 'v')
2816 aushort = vtohs(aushort);
2825 Copy(s, &aushort, 1, U16);
2829 if (datumtype == 'n')
2830 aushort = ntohs(aushort);
2833 if (datumtype == 'v')
2834 aushort = vtohs(aushort);
2836 sv_setiv(sv, (IV)aushort);
2837 PUSHs(sv_2mortal(sv));
2842 along = (strend - s) / sizeof(int);
2847 Copy(s, &aint, 1, int);
2850 cdouble += (double)aint;
2859 Copy(s, &aint, 1, int);
2862 sv_setiv(sv, (IV)aint);
2863 PUSHs(sv_2mortal(sv));
2868 along = (strend - s) / sizeof(unsigned int);
2873 Copy(s, &auint, 1, unsigned int);
2874 s += sizeof(unsigned int);
2876 cdouble += (double)auint;
2885 Copy(s, &auint, 1, unsigned int);
2886 s += sizeof(unsigned int);
2888 sv_setuv(sv, (UV)auint);
2889 PUSHs(sv_2mortal(sv));
2894 along = (strend - s) / sizeof(I32);
2899 Copy(s, &along, 1, I32);
2902 cdouble += (double)along;
2911 Copy(s, &along, 1, I32);
2914 sv_setiv(sv, (IV)along);
2915 PUSHs(sv_2mortal(sv));
2922 along = (strend - s) / sizeof(U32);
2927 Copy(s, &aulong, 1, U32);
2930 if (datumtype == 'N')
2931 aulong = ntohl(aulong);
2934 if (datumtype == 'V')
2935 aulong = vtohl(aulong);
2938 cdouble += (double)aulong;
2947 Copy(s, &aulong, 1, U32);
2950 if (datumtype == 'N')
2951 aulong = ntohl(aulong);
2954 if (datumtype == 'V')
2955 aulong = vtohl(aulong);
2958 sv_setuv(sv, (UV)aulong);
2959 PUSHs(sv_2mortal(sv));
2964 along = (strend - s) / sizeof(char*);
2970 if (sizeof(char*) > strend - s)
2973 Copy(s, &aptr, 1, char*);
2979 PUSHs(sv_2mortal(sv));
2989 while ((len > 0) && (s < strend)) {
2990 auv = (auv << 7) | (*s & 0x7f);
2991 if (!(*s++ & 0x80)) {
2995 PUSHs(sv_2mortal(sv));
2999 else if (++bytes >= sizeof(UV)) { /* promote to string */
3000 char decn[sizeof(UV) * 3 + 1];
3003 (void) sprintf(decn, "%0*ld",
3004 (int)sizeof(decn) - 1, auv);
3005 sv = newSVpv(decn, 0);
3006 while (s < strend) {
3007 sv = mul128(sv, *s & 0x7f);
3008 if (!(*s++ & 0x80)) {
3017 PUSHs(sv_2mortal(sv));
3022 if ((s >= strend) && bytes)
3023 croak("Unterminated compressed integer");
3028 if (sizeof(char*) > strend - s)
3031 Copy(s, &aptr, 1, char*);
3036 sv_setpvn(sv, aptr, len);
3037 PUSHs(sv_2mortal(sv));
3044 if (s + sizeof(Quad_t) > strend)
3047 Copy(s, &aquad, 1, Quad_t);
3048 s += sizeof(Quad_t);
3051 sv_setiv(sv, (IV)aquad);
3052 PUSHs(sv_2mortal(sv));
3059 if (s + sizeof(unsigned Quad_t) > strend)
3062 Copy(s, &auquad, 1, unsigned Quad_t);
3063 s += sizeof(unsigned Quad_t);
3066 sv_setuv(sv, (UV)auquad);
3067 PUSHs(sv_2mortal(sv));
3071 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3074 along = (strend - s) / sizeof(float);
3079 Copy(s, &afloat, 1, float);
3088 Copy(s, &afloat, 1, float);
3091 sv_setnv(sv, (double)afloat);
3092 PUSHs(sv_2mortal(sv));
3098 along = (strend - s) / sizeof(double);
3103 Copy(s, &adouble, 1, double);
3104 s += sizeof(double);
3112 Copy(s, &adouble, 1, double);
3113 s += sizeof(double);
3115 sv_setnv(sv, (double)adouble);
3116 PUSHs(sv_2mortal(sv));
3121 along = (strend - s) * 3 / 4;
3122 sv = NEWSV(42, along);
3125 while (s < strend && *s > ' ' && *s < 'a') {
3130 len = (*s++ - ' ') & 077;
3132 if (s < strend && *s >= ' ')
3133 a = (*s++ - ' ') & 077;
3136 if (s < strend && *s >= ' ')
3137 b = (*s++ - ' ') & 077;
3140 if (s < strend && *s >= ' ')
3141 c = (*s++ - ' ') & 077;
3144 if (s < strend && *s >= ' ')
3145 d = (*s++ - ' ') & 077;
3148 hunk[0] = a << 2 | b >> 4;
3149 hunk[1] = b << 4 | c >> 2;
3150 hunk[2] = c << 6 | d;
3151 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3156 else if (s[1] == '\n') /* possible checksum byte */
3159 XPUSHs(sv_2mortal(sv));
3164 if (strchr("fFdD", datumtype) ||
3165 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3169 while (checksum >= 16) {
3173 while (checksum >= 4) {
3179 along = (1 << checksum) - 1;
3180 while (cdouble < 0.0)
3182 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3183 sv_setnv(sv, cdouble);
3186 if (checksum < 32) {
3187 along = (1 << checksum) - 1;
3188 culong &= (U32)along;
3190 sv_setnv(sv, (double)culong);
3192 XPUSHs(sv_2mortal(sv));
3196 if (sp == oldsp && GIMME != G_ARRAY)
3202 doencodes(sv, s, len)
3210 sv_catpvn(sv, hunk, 1);
3213 hunk[0] = ' ' + (077 & (*s >> 2));
3214 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3215 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3216 hunk[3] = ' ' + (077 & (s[2] & 077));
3217 sv_catpvn(sv, hunk, 4);
3221 for (s = SvPVX(sv); *s; s++) {
3225 sv_catpvn(sv, "\n", 1);
3233 SV *result = newSVpv("", l);
3234 char *result_c = SvPV(result, na); /* convenience */
3235 char *out = result_c;
3245 SvREFCNT_dec(result);
3268 SvREFCNT_dec(result);
3274 SvCUR_set(result, out - result_c);
3280 SV *pnum; /* must be '\0' terminated */
3284 char *s = SvPV(pnum, len);
3293 i = m * 10 + (*t - '0');
3295 r = (i >> 7); /* r < 10 */
3302 SvCUR_set(pnum, (STRLEN) (t - s));
3309 dSP; dMARK; dORIGMARK; dTARGET;
3310 register SV *cat = TARG;
3313 register char *pat = SvPVx(*++MARK, fromlen);
3314 register char *patend = pat + fromlen;
3319 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3320 static char *space10 = " ";
3322 /* These must not be in registers: */
3331 unsigned Quad_t auquad;
3339 sv_setpvn(cat, "", 0);
3340 while (pat < patend) {
3341 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3344 len = strchr("@Xxu", datumtype) ? 0 : items;
3347 else if (isDIGIT(*pat)) {
3349 while (isDIGIT(*pat))
3350 len = (len * 10) + (*pat++ - '0');
3358 DIE("%% may only be used in unpack");
3369 if (SvCUR(cat) < len)
3370 DIE("X outside of string");
3377 sv_catpvn(cat, null10, 10);
3380 sv_catpvn(cat, null10, len);
3385 aptr = SvPV(fromstr, fromlen);
3389 sv_catpvn(cat, aptr, len);
3391 sv_catpvn(cat, aptr, fromlen);
3393 if (datumtype == 'A') {
3395 sv_catpvn(cat, space10, 10);
3398 sv_catpvn(cat, space10, len);
3402 sv_catpvn(cat, null10, 10);
3405 sv_catpvn(cat, null10, len);
3412 char *savepat = pat;
3417 aptr = SvPV(fromstr, fromlen);
3422 SvCUR(cat) += (len+7)/8;
3423 SvGROW(cat, SvCUR(cat) + 1);
3424 aptr = SvPVX(cat) + aint;
3429 if (datumtype == 'B') {
3430 for (len = 0; len++ < aint;) {
3431 items |= *pat++ & 1;
3435 *aptr++ = items & 0xff;
3441 for (len = 0; len++ < aint;) {
3447 *aptr++ = items & 0xff;
3453 if (datumtype == 'B')
3454 items <<= 7 - (aint & 7);
3456 items >>= 7 - (aint & 7);
3457 *aptr++ = items & 0xff;
3459 pat = SvPVX(cat) + SvCUR(cat);
3470 char *savepat = pat;
3475 aptr = SvPV(fromstr, fromlen);
3480 SvCUR(cat) += (len+1)/2;
3481 SvGROW(cat, SvCUR(cat) + 1);
3482 aptr = SvPVX(cat) + aint;
3487 if (datumtype == 'H') {
3488 for (len = 0; len++ < aint;) {
3490 items |= ((*pat++ & 15) + 9) & 15;
3492 items |= *pat++ & 15;
3496 *aptr++ = items & 0xff;
3502 for (len = 0; len++ < aint;) {
3504 items |= (((*pat++ & 15) + 9) & 15) << 4;
3506 items |= (*pat++ & 15) << 4;
3510 *aptr++ = items & 0xff;
3516 *aptr++ = items & 0xff;
3517 pat = SvPVX(cat) + SvCUR(cat);
3529 aint = SvIV(fromstr);
3531 sv_catpvn(cat, &achar, sizeof(char));
3534 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3539 afloat = (float)SvNV(fromstr);
3540 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3547 adouble = (double)SvNV(fromstr);
3548 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3554 ashort = (I16)SvIV(fromstr);
3556 ashort = htons(ashort);
3558 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3564 ashort = (I16)SvIV(fromstr);
3566 ashort = htovs(ashort);
3568 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3575 ashort = (I16)SvIV(fromstr);
3576 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3582 auint = U_I(SvNV(fromstr));
3583 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3589 adouble = floor(SvNV(fromstr));
3592 croak("Cannot compress negative numbers");
3594 if (adouble <= UV_MAX) {
3595 char buf[1 + sizeof(UV)];
3596 char *in = buf + sizeof(buf);
3597 UV auv = U_V(adouble);;
3600 *--in = (auv & 0x7f) | 0x80;
3603 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3604 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3606 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3607 char *from, *result, *in;
3612 /* Copy string and check for compliance */
3613 from = SvPV(fromstr, len);
3614 if ((norm = is_an_int(from, len)) == NULL)
3615 croak("can compress only unsigned integer");
3617 New('w', result, len, char);
3621 *--in = div128(norm, &done) | 0x80;
3622 result[len - 1] &= 0x7F; /* clear continue bit */
3623 sv_catpvn(cat, in, (result + len) - in);
3625 SvREFCNT_dec(norm); /* free norm */
3627 else if (SvNOKp(fromstr)) {
3628 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3629 char *in = buf + sizeof(buf);
3632 double next = floor(adouble / 128);
3633 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3634 if (--in < buf) /* this cannot happen ;-) */
3635 croak ("Cannot compress integer");
3637 } while (adouble > 0);
3638 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3639 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3642 croak("Cannot compress non integer");
3648 aint = SvIV(fromstr);
3649 sv_catpvn(cat, (char*)&aint, sizeof(int));
3655 aulong = U_L(SvNV(fromstr));
3657 aulong = htonl(aulong);
3659 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3665 aulong = U_L(SvNV(fromstr));
3667 aulong = htovl(aulong);
3669 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3675 aulong = U_L(SvNV(fromstr));
3676 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3682 along = SvIV(fromstr);
3683 sv_catpvn(cat, (char*)&along, sizeof(I32));
3690 auquad = (unsigned Quad_t)SvIV(fromstr);
3691 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3697 aquad = (Quad_t)SvIV(fromstr);
3698 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3701 #endif /* HAS_QUAD */
3703 len = 1; /* assume SV is correct length */
3708 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3709 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3714 aptr = SvPV(fromstr, fromlen);
3715 SvGROW(cat, fromlen * 4 / 3);
3720 while (fromlen > 0) {
3727 doencodes(cat, aptr, todo);
3745 register I32 limit = POPi; /* note, negative is forever */
3748 register char *s = SvPV(sv, len);
3749 char *strend = s + len;
3751 register REGEXP *rx;
3755 I32 maxiters = (strend - s) + 10;
3758 I32 origlimit = limit;
3761 AV *oldstack = curstack;
3763 I32 oldsave = savestack_ix;
3766 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3771 DIE("panic: do_split");
3772 rx = pm->op_pmregexp;
3774 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3775 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3777 if (pm->op_pmreplroot)
3778 ary = GvAVn((GV*)pm->op_pmreplroot);
3779 else if (gimme != G_ARRAY)
3783 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3787 for (i = AvFILL(ary); i >= 0; i--)
3788 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3792 /* temporarily switch stacks */
3793 SWITCHSTACK(curstack, ary);
3795 base = SP - stack_base;
3797 if (pm->op_pmflags & PMf_SKIPWHITE) {
3798 if (pm->op_pmflags & PMf_LOCALE) {
3799 while (isSPACE_LC(*s))
3807 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3809 multiline = pm->op_pmflags & PMf_MULTILINE;
3813 limit = maxiters + 2;
3814 if (pm->op_pmflags & PMf_WHITE) {
3817 while (m < strend &&
3818 !((pm->op_pmflags & PMf_LOCALE)
3819 ? isSPACE_LC(*m) : isSPACE(*m)))
3824 dstr = NEWSV(30, m-s);
3825 sv_setpvn(dstr, s, m-s);
3831 while (s < strend &&
3832 ((pm->op_pmflags & PMf_LOCALE)
3833 ? isSPACE_LC(*s) : isSPACE(*s)))
3837 else if (strEQ("^", rx->precomp)) {
3840 for (m = s; m < strend && *m != '\n'; m++) ;
3844 dstr = NEWSV(30, m-s);
3845 sv_setpvn(dstr, s, m-s);
3852 else if (pm->op_pmshort && !rx->nparens) {
3853 i = SvCUR(pm->op_pmshort);
3855 i = *SvPVX(pm->op_pmshort);
3858 for (m = s; m < strend && *m != i; m++) ;
3861 dstr = NEWSV(30, m-s);
3862 sv_setpvn(dstr, s, m-s);
3871 while (s < strend && --limit &&
3872 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3876 dstr = NEWSV(31, m-s);
3877 sv_setpvn(dstr, s, m-s);
3886 maxiters += (strend - s) * rx->nparens;
3887 while (s < strend && --limit &&
3888 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3890 TAINT_IF(rx->exec_tainted);
3892 && rx->subbase != orig) {
3897 strend = s + (strend - m);
3900 dstr = NEWSV(32, m-s);
3901 sv_setpvn(dstr, s, m-s);
3906 for (i = 1; i <= rx->nparens; i++) {
3910 dstr = NEWSV(33, m-s);
3911 sv_setpvn(dstr, s, m-s);
3914 dstr = NEWSV(33, 0);
3923 LEAVE_SCOPE(oldsave);
3924 iters = (SP - stack_base) - base;
3925 if (iters > maxiters)
3928 /* keep field after final delim? */
3929 if (s < strend || (iters && origlimit)) {
3930 dstr = NEWSV(34, strend-s);
3931 sv_setpvn(dstr, s, strend-s);
3937 else if (!origlimit) {
3938 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3942 SWITCHSTACK(ary, oldstack);
3943 if (gimme == G_ARRAY) {
3945 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3951 if (gimme == G_ARRAY)
3954 if (iters || !pm->op_pmreplroot) {