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 && MAXARG < 3) pos = 0;
1528 if (pos < 0 || pos > curlen) {
1529 if (dowarn || lvalue)
1530 warn("substr outside of string");
1537 len += curlen - pos;
1542 rem = curlen - pos; /* rem=how many bytes left*/
1545 sv_setpvn(TARG, tmps, rem);
1546 if (lvalue) { /* it's an lvalue! */
1547 if (!SvGMAGICAL(sv)) {
1551 warn("Attempt to use reference as lvalue in substr");
1553 if (SvOK(sv)) /* is it defined ? */
1554 (void)SvPOK_only(sv);
1556 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1559 if (SvTYPE(TARG) < SVt_PVLV) {
1560 sv_upgrade(TARG, SVt_PVLV);
1561 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1566 LvTARGOFF(TARG) = pos;
1567 LvTARGLEN(TARG) = rem;
1570 PUSHs(TARG); /* avoid SvSETMAGIC here */
1577 register I32 size = POPi;
1578 register I32 offset = POPi;
1579 register SV *src = POPs;
1580 I32 lvalue = op->op_flags & OPf_MOD;
1582 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1583 unsigned long retnum;
1586 offset *= size; /* turn into bit offset */
1587 len = (offset + size + 7) / 8;
1588 if (offset < 0 || size < 1)
1591 if (lvalue) { /* it's an lvalue! */
1592 if (SvTYPE(TARG) < SVt_PVLV) {
1593 sv_upgrade(TARG, SVt_PVLV);
1594 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1599 LvTARGOFF(TARG) = offset;
1600 LvTARGLEN(TARG) = size;
1608 if (offset >= srclen)
1611 retnum = (unsigned long) s[offset] << 8;
1613 else if (size == 32) {
1614 if (offset >= srclen)
1616 else if (offset + 1 >= srclen)
1617 retnum = (unsigned long) s[offset] << 24;
1618 else if (offset + 2 >= srclen)
1619 retnum = ((unsigned long) s[offset] << 24) +
1620 ((unsigned long) s[offset + 1] << 16);
1622 retnum = ((unsigned long) s[offset] << 24) +
1623 ((unsigned long) s[offset + 1] << 16) +
1624 (s[offset + 2] << 8);
1629 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1634 else if (size == 16)
1635 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1636 else if (size == 32)
1637 retnum = ((unsigned long) s[offset] << 24) +
1638 ((unsigned long) s[offset + 1] << 16) +
1639 (s[offset + 2] << 8) + s[offset+3];
1643 sv_setiv(TARG, (IV)retnum);
1658 I32 arybase = curcop->cop_arybase;
1663 offset = POPi - arybase;
1666 tmps = SvPV(big, biglen);
1669 else if (offset > biglen)
1671 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1672 (unsigned char*)tmps + biglen, little)))
1673 retval = -1 + arybase;
1675 retval = tmps2 - tmps + arybase;
1692 I32 arybase = curcop->cop_arybase;
1698 tmps2 = SvPV(little, llen);
1699 tmps = SvPV(big, blen);
1703 offset = SvIV(offstr) - arybase + llen;
1706 else if (offset > blen)
1708 if (!(tmps2 = rninstr(tmps, tmps + offset,
1709 tmps2, tmps2 + llen)))
1710 retval = -1 + arybase;
1712 retval = tmps2 - tmps + arybase;
1719 dSP; dMARK; dORIGMARK; dTARGET;
1720 #ifdef USE_LOCALE_NUMERIC
1721 if (op->op_private & OPpLOCALE)
1722 SET_NUMERIC_LOCAL();
1724 SET_NUMERIC_STANDARD();
1726 do_sprintf(TARG, SP-MARK, MARK+1);
1727 TAINT_IF(SvTAINTED(TARG));
1741 value = (I32) (*tmps & 255);
1746 value = (I32) (anum & 255);
1757 (void)SvUPGRADE(TARG,SVt_PV);
1763 (void)SvPOK_only(TARG);
1770 dSP; dTARGET; dPOPTOPssrl;
1772 char *tmps = SvPV(left, na);
1774 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1776 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1780 "The crypt() function is unimplemented due to excessive paranoia.");
1792 if (!SvPADTMP(sv)) {
1798 s = SvPV_force(sv, na);
1800 if (op->op_private & OPpLOCALE) {
1803 *s = toUPPER_LC(*s);
1818 if (!SvPADTMP(sv)) {
1824 s = SvPV_force(sv, na);
1826 if (op->op_private & OPpLOCALE) {
1829 *s = toLOWER_LC(*s);
1846 if (!SvPADTMP(sv)) {
1853 s = SvPV_force(sv, len);
1855 register char *send = s + len;
1857 if (op->op_private & OPpLOCALE) {
1860 for (; s < send; s++)
1861 *s = toUPPER_LC(*s);
1864 for (; s < send; s++)
1878 if (!SvPADTMP(sv)) {
1885 s = SvPV_force(sv, len);
1887 register char *send = s + len;
1889 if (op->op_private & OPpLOCALE) {
1892 for (; s < send; s++)
1893 *s = toLOWER_LC(*s);
1896 for (; s < send; s++)
1908 register char *s = SvPV(sv,len);
1912 (void)SvUPGRADE(TARG, SVt_PV);
1913 SvGROW(TARG, (len * 2) + 1);
1921 SvCUR_set(TARG, d - SvPVX(TARG));
1922 (void)SvPOK_only(TARG);
1925 sv_setpvn(TARG, s, len);
1934 dSP; dMARK; dORIGMARK;
1936 register AV* av = (AV*)POPs;
1937 register I32 lval = op->op_flags & OPf_MOD;
1938 I32 arybase = curcop->cop_arybase;
1941 if (SvTYPE(av) == SVt_PVAV) {
1942 if (lval && op->op_private & OPpLVAL_INTRO) {
1944 for (svp = mark + 1; svp <= sp; svp++) {
1949 if (max > AvMAX(av))
1952 while (++MARK <= SP) {
1953 elem = SvIVx(*MARK);
1957 svp = av_fetch(av, elem, lval);
1959 if (!svp || *svp == &sv_undef)
1960 DIE(no_aelem, elem);
1961 if (op->op_private & OPpLVAL_INTRO)
1964 *MARK = svp ? *svp : &sv_undef;
1967 if (GIMME != G_ARRAY) {
1975 /* Associative arrays. */
1980 HV *hash = (HV*)POPs;
1984 entry = hv_iternext(hash); /* might clobber stack_sp */
1989 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1990 if (GIMME == G_ARRAY) {
1992 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1997 else if (GIMME == G_SCALAR)
2019 if (op->op_private & OPpSLICE) {
2022 if (SvTYPE(hv) != SVt_PVHV)
2023 DIE("Not a HASH reference");
2024 while (++MARK <= SP) {
2025 sv = hv_delete_ent(hv, *MARK,
2026 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2027 *MARK = sv ? sv : &sv_undef;
2029 if (GIMME != G_ARRAY) {
2038 if (SvTYPE(hv) != SVt_PVHV)
2039 DIE("Not a HASH reference");
2040 sv = hv_delete_ent(hv, keysv,
2041 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2055 if (SvTYPE(hv) != SVt_PVHV) {
2056 DIE("Not a HASH reference");
2058 if (hv_exists_ent(hv, tmpsv, 0))
2065 dSP; dMARK; dORIGMARK;
2067 register HV *hv = (HV*)POPs;
2068 register I32 lval = op->op_flags & OPf_MOD;
2070 if (SvTYPE(hv) == SVt_PVHV) {
2071 while (++MARK <= SP) {
2074 he = hv_fetch_ent(hv, keysv, lval, 0);
2076 if (!he || HeVAL(he) == &sv_undef)
2077 DIE(no_helem, SvPV(keysv, na));
2078 if (op->op_private & OPpLVAL_INTRO)
2079 save_svref(&HeVAL(he));
2081 *MARK = he ? HeVAL(he) : &sv_undef;
2084 if (GIMME != G_ARRAY) {
2092 /* List operators. */
2097 if (GIMME != G_ARRAY) {
2099 *MARK = *SP; /* unwanted list, return last item */
2110 SV **lastrelem = stack_sp;
2111 SV **lastlelem = stack_base + POPMARK;
2112 SV **firstlelem = stack_base + POPMARK + 1;
2113 register SV **firstrelem = lastlelem + 1;
2114 I32 arybase = curcop->cop_arybase;
2115 I32 lval = op->op_flags & OPf_MOD;
2116 I32 is_something_there = lval;
2118 register I32 max = lastrelem - lastlelem;
2119 register SV **lelem;
2122 if (GIMME != G_ARRAY) {
2123 ix = SvIVx(*lastlelem);
2128 if (ix < 0 || ix >= max)
2129 *firstlelem = &sv_undef;
2131 *firstlelem = firstrelem[ix];
2137 SP = firstlelem - 1;
2141 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2147 else if (!(*lelem = firstrelem[ix]))
2152 if (ix >= max || !(*lelem = firstrelem[ix]))
2155 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2156 is_something_there = TRUE;
2158 if (is_something_there)
2161 SP = firstlelem - 1;
2167 dSP; dMARK; dORIGMARK;
2168 I32 items = SP - MARK;
2169 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2170 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2177 dSP; dMARK; dORIGMARK;
2178 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2182 SV *val = NEWSV(46, 0);
2184 sv_setsv(val, *++MARK);
2186 warn("Odd number of elements in hash list");
2187 (void)hv_store_ent(hv,key,val,0);
2196 dSP; dMARK; dORIGMARK;
2197 register AV *ary = (AV*)*++MARK;
2201 register I32 offset;
2202 register I32 length;
2211 offset = SvIVx(*MARK);
2213 offset += AvFILL(ary) + 1;
2215 offset -= curcop->cop_arybase;
2217 length = SvIVx(*MARK++);
2222 length = AvMAX(ary) + 1; /* close enough to infinity */
2226 length = AvMAX(ary) + 1;
2234 if (offset > AvFILL(ary) + 1)
2235 offset = AvFILL(ary) + 1;
2236 after = AvFILL(ary) + 1 - (offset + length);
2237 if (after < 0) { /* not that much array */
2238 length += after; /* offset+length now in array */
2244 /* At this point, MARK .. SP-1 is our new LIST */
2247 diff = newlen - length;
2249 if (diff < 0) { /* shrinking the area */
2251 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2252 Copy(MARK, tmparyval, newlen, SV*);
2255 MARK = ORIGMARK + 1;
2256 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2257 MEXTEND(MARK, length);
2258 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2260 EXTEND_MORTAL(length);
2261 for (i = length, dst = MARK; i; i--) {
2262 if (!SvIMMORTAL(*dst))
2263 sv_2mortal(*dst); /* free them eventualy */
2270 *MARK = AvARRAY(ary)[offset+length-1];
2272 if (!SvIMMORTAL(*MARK))
2274 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2275 SvREFCNT_dec(*dst++); /* free them now */
2278 AvFILL(ary) += diff;
2280 /* pull up or down? */
2282 if (offset < after) { /* easier to pull up */
2283 if (offset) { /* esp. if nothing to pull */
2284 src = &AvARRAY(ary)[offset-1];
2285 dst = src - diff; /* diff is negative */
2286 for (i = offset; i > 0; i--) /* can't trust Copy */
2290 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2294 if (after) { /* anything to pull down? */
2295 src = AvARRAY(ary) + offset + length;
2296 dst = src + diff; /* diff is negative */
2297 Move(src, dst, after, SV*);
2299 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2300 /* avoid later double free */
2304 dst[--i] = &sv_undef;
2307 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2309 *dst = NEWSV(46, 0);
2310 sv_setsv(*dst++, *src++);
2312 Safefree(tmparyval);
2315 else { /* no, expanding (or same) */
2317 New(452, tmparyval, length, SV*); /* so remember deletion */
2318 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2321 if (diff > 0) { /* expanding */
2323 /* push up or down? */
2325 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2329 Move(src, dst, offset, SV*);
2331 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2333 AvFILL(ary) += diff;
2336 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2337 av_extend(ary, AvFILL(ary) + diff);
2338 AvFILL(ary) += diff;
2341 dst = AvARRAY(ary) + AvFILL(ary);
2343 for (i = after; i; i--) {
2350 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2351 *dst = NEWSV(46, 0);
2352 sv_setsv(*dst++, *src++);
2354 MARK = ORIGMARK + 1;
2355 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2357 Copy(tmparyval, MARK, length, SV*);
2359 EXTEND_MORTAL(length);
2360 for (i = length, dst = MARK; i; i--) {
2361 if (!SvIMMORTAL(*dst))
2362 sv_2mortal(*dst); /* free them eventualy */
2366 Safefree(tmparyval);
2370 else if (length--) {
2371 *MARK = tmparyval[length];
2373 if (!SvIMMORTAL(*MARK))
2375 while (length-- > 0)
2376 SvREFCNT_dec(tmparyval[length]);
2378 Safefree(tmparyval);
2389 dSP; dMARK; dORIGMARK; dTARGET;
2390 register AV *ary = (AV*)*++MARK;
2391 register SV *sv = &sv_undef;
2393 for (++MARK; MARK <= SP; MARK++) {
2396 sv_setsv(sv, *MARK);
2400 PUSHi( AvFILL(ary) + 1 );
2408 SV *sv = av_pop(av);
2409 if (!SvIMMORTAL(sv) && AvREAL(av))
2410 (void)sv_2mortal(sv);
2419 SV *sv = av_shift(av);
2423 if (!SvIMMORTAL(sv) && AvREAL(av))
2424 (void)sv_2mortal(sv);
2431 dSP; dMARK; dORIGMARK; dTARGET;
2432 register AV *ary = (AV*)*++MARK;
2436 av_unshift(ary, SP - MARK);
2439 sv_setsv(sv, *++MARK);
2440 (void)av_store(ary, i++, sv);
2444 PUSHi( AvFILL(ary) + 1 );
2454 if (GIMME == G_ARRAY) {
2465 register char *down;
2471 do_join(TARG, &sv_no, MARK, SP);
2473 sv_setsv(TARG, *SP);
2474 up = SvPV_force(TARG, len);
2476 down = SvPVX(TARG) + len - 1;
2482 (void)SvPOK_only(TARG);
2496 char *s = SvPV(sv, len);
2500 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2501 SV *new = newSVpv("0000000000", 10);
2504 SvREFCNT_dec(sv); /* free old sv */
2509 while (!*t) /* trailing '\0'? */
2512 i = ((*t - '0') << 7) + m;
2513 *(t--) = '0' + (i % 10);
2519 /* Explosives and implosives. */
2529 register char *pat = SvPV(left, llen);
2530 register char *s = SvPV(right, rlen);
2531 char *strend = s + rlen;
2533 register char *patend = pat + llen;
2538 /* These must not be in registers: */
2549 unsigned Quad_t auquad;
2555 register U32 culong;
2557 static char* bitcount = 0;
2559 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2561 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2562 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2564 while (isDIGIT(*patend) || *patend == '*')
2570 while (pat < patend) {
2575 else if (*pat == '*') {
2576 len = strend - strbeg; /* long enough */
2579 else if (isDIGIT(*pat)) {
2581 while (isDIGIT(*pat))
2582 len = (len * 10) + (*pat++ - '0');
2585 len = (datumtype != '@');
2590 if (len == 1 && pat[-1] != '1')
2599 if (len > strend - strbeg)
2600 DIE("@ outside of string");
2604 if (len > s - strbeg)
2605 DIE("X outside of string");
2609 if (len > strend - s)
2610 DIE("x outside of string");
2615 if (len > strend - s)
2618 goto uchar_checksum;
2619 sv = NEWSV(35, len);
2620 sv_setpvn(sv, s, len);
2622 if (datumtype == 'A') {
2623 aptr = s; /* borrow register */
2624 s = SvPVX(sv) + len - 1;
2625 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2628 SvCUR_set(sv, s - SvPVX(sv));
2629 s = aptr; /* unborrow register */
2631 XPUSHs(sv_2mortal(sv));
2635 if (pat[-1] == '*' || len > (strend - s) * 8)
2636 len = (strend - s) * 8;
2639 Newz(601, bitcount, 256, char);
2640 for (bits = 1; bits < 256; bits++) {
2641 if (bits & 1) bitcount[bits]++;
2642 if (bits & 2) bitcount[bits]++;
2643 if (bits & 4) bitcount[bits]++;
2644 if (bits & 8) bitcount[bits]++;
2645 if (bits & 16) bitcount[bits]++;
2646 if (bits & 32) bitcount[bits]++;
2647 if (bits & 64) bitcount[bits]++;
2648 if (bits & 128) bitcount[bits]++;
2652 culong += bitcount[*(unsigned char*)s++];
2657 if (datumtype == 'b') {
2659 if (bits & 1) culong++;
2665 if (bits & 128) culong++;
2672 sv = NEWSV(35, len + 1);
2675 aptr = pat; /* borrow register */
2677 if (datumtype == 'b') {
2679 for (len = 0; len < aint; len++) {
2680 if (len & 7) /*SUPPRESS 595*/
2684 *pat++ = '0' + (bits & 1);
2689 for (len = 0; len < aint; len++) {
2694 *pat++ = '0' + ((bits & 128) != 0);
2698 pat = aptr; /* unborrow register */
2699 XPUSHs(sv_2mortal(sv));
2703 if (pat[-1] == '*' || len > (strend - s) * 2)
2704 len = (strend - s) * 2;
2705 sv = NEWSV(35, len + 1);
2708 aptr = pat; /* borrow register */
2710 if (datumtype == 'h') {
2712 for (len = 0; len < aint; len++) {
2717 *pat++ = hexdigit[bits & 15];
2722 for (len = 0; len < aint; len++) {
2727 *pat++ = hexdigit[(bits >> 4) & 15];
2731 pat = aptr; /* unborrow register */
2732 XPUSHs(sv_2mortal(sv));
2735 if (len > strend - s)
2740 if (aint >= 128) /* fake up signed chars */
2750 if (aint >= 128) /* fake up signed chars */
2753 sv_setiv(sv, (IV)aint);
2754 PUSHs(sv_2mortal(sv));
2759 if (len > strend - s)
2774 sv_setiv(sv, (IV)auint);
2775 PUSHs(sv_2mortal(sv));
2780 along = (strend - s) / sizeof(I16);
2785 Copy(s, &ashort, 1, I16);
2794 Copy(s, &ashort, 1, I16);
2797 sv_setiv(sv, (IV)ashort);
2798 PUSHs(sv_2mortal(sv));
2805 along = (strend - s) / sizeof(U16);
2810 Copy(s, &aushort, 1, U16);
2813 if (datumtype == 'n')
2814 aushort = ntohs(aushort);
2817 if (datumtype == 'v')
2818 aushort = vtohs(aushort);
2827 Copy(s, &aushort, 1, U16);
2831 if (datumtype == 'n')
2832 aushort = ntohs(aushort);
2835 if (datumtype == 'v')
2836 aushort = vtohs(aushort);
2838 sv_setiv(sv, (IV)aushort);
2839 PUSHs(sv_2mortal(sv));
2844 along = (strend - s) / sizeof(int);
2849 Copy(s, &aint, 1, int);
2852 cdouble += (double)aint;
2861 Copy(s, &aint, 1, int);
2864 sv_setiv(sv, (IV)aint);
2865 PUSHs(sv_2mortal(sv));
2870 along = (strend - s) / sizeof(unsigned int);
2875 Copy(s, &auint, 1, unsigned int);
2876 s += sizeof(unsigned int);
2878 cdouble += (double)auint;
2887 Copy(s, &auint, 1, unsigned int);
2888 s += sizeof(unsigned int);
2890 sv_setuv(sv, (UV)auint);
2891 PUSHs(sv_2mortal(sv));
2896 along = (strend - s) / sizeof(I32);
2901 Copy(s, &along, 1, I32);
2904 cdouble += (double)along;
2913 Copy(s, &along, 1, I32);
2916 sv_setiv(sv, (IV)along);
2917 PUSHs(sv_2mortal(sv));
2924 along = (strend - s) / sizeof(U32);
2929 Copy(s, &aulong, 1, U32);
2932 if (datumtype == 'N')
2933 aulong = ntohl(aulong);
2936 if (datumtype == 'V')
2937 aulong = vtohl(aulong);
2940 cdouble += (double)aulong;
2949 Copy(s, &aulong, 1, U32);
2952 if (datumtype == 'N')
2953 aulong = ntohl(aulong);
2956 if (datumtype == 'V')
2957 aulong = vtohl(aulong);
2960 sv_setuv(sv, (UV)aulong);
2961 PUSHs(sv_2mortal(sv));
2966 along = (strend - s) / sizeof(char*);
2972 if (sizeof(char*) > strend - s)
2975 Copy(s, &aptr, 1, char*);
2981 PUSHs(sv_2mortal(sv));
2991 while ((len > 0) && (s < strend)) {
2992 auv = (auv << 7) | (*s & 0x7f);
2993 if (!(*s++ & 0x80)) {
2997 PUSHs(sv_2mortal(sv));
3001 else if (++bytes >= sizeof(UV)) { /* promote to string */
3002 char decn[sizeof(UV) * 3 + 1];
3005 (void) sprintf(decn, "%0*ld",
3006 (int)sizeof(decn) - 1, auv);
3007 sv = newSVpv(decn, 0);
3008 while (s < strend) {
3009 sv = mul128(sv, *s & 0x7f);
3010 if (!(*s++ & 0x80)) {
3019 PUSHs(sv_2mortal(sv));
3024 if ((s >= strend) && bytes)
3025 croak("Unterminated compressed integer");
3030 if (sizeof(char*) > strend - s)
3033 Copy(s, &aptr, 1, char*);
3038 sv_setpvn(sv, aptr, len);
3039 PUSHs(sv_2mortal(sv));
3046 if (s + sizeof(Quad_t) > strend)
3049 Copy(s, &aquad, 1, Quad_t);
3050 s += sizeof(Quad_t);
3053 sv_setiv(sv, (IV)aquad);
3054 PUSHs(sv_2mortal(sv));
3061 if (s + sizeof(unsigned Quad_t) > strend)
3064 Copy(s, &auquad, 1, unsigned Quad_t);
3065 s += sizeof(unsigned Quad_t);
3068 sv_setuv(sv, (UV)auquad);
3069 PUSHs(sv_2mortal(sv));
3073 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3076 along = (strend - s) / sizeof(float);
3081 Copy(s, &afloat, 1, float);
3090 Copy(s, &afloat, 1, float);
3093 sv_setnv(sv, (double)afloat);
3094 PUSHs(sv_2mortal(sv));
3100 along = (strend - s) / sizeof(double);
3105 Copy(s, &adouble, 1, double);
3106 s += sizeof(double);
3114 Copy(s, &adouble, 1, double);
3115 s += sizeof(double);
3117 sv_setnv(sv, (double)adouble);
3118 PUSHs(sv_2mortal(sv));
3123 along = (strend - s) * 3 / 4;
3124 sv = NEWSV(42, along);
3127 while (s < strend && *s > ' ' && *s < 'a') {
3132 len = (*s++ - ' ') & 077;
3134 if (s < strend && *s >= ' ')
3135 a = (*s++ - ' ') & 077;
3138 if (s < strend && *s >= ' ')
3139 b = (*s++ - ' ') & 077;
3142 if (s < strend && *s >= ' ')
3143 c = (*s++ - ' ') & 077;
3146 if (s < strend && *s >= ' ')
3147 d = (*s++ - ' ') & 077;
3150 hunk[0] = a << 2 | b >> 4;
3151 hunk[1] = b << 4 | c >> 2;
3152 hunk[2] = c << 6 | d;
3153 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3158 else if (s[1] == '\n') /* possible checksum byte */
3161 XPUSHs(sv_2mortal(sv));
3166 if (strchr("fFdD", datumtype) ||
3167 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3171 while (checksum >= 16) {
3175 while (checksum >= 4) {
3181 along = (1 << checksum) - 1;
3182 while (cdouble < 0.0)
3184 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3185 sv_setnv(sv, cdouble);
3188 if (checksum < 32) {
3189 along = (1 << checksum) - 1;
3190 culong &= (U32)along;
3192 sv_setnv(sv, (double)culong);
3194 XPUSHs(sv_2mortal(sv));
3198 if (sp == oldsp && GIMME != G_ARRAY)
3204 doencodes(sv, s, len)
3212 sv_catpvn(sv, hunk, 1);
3215 hunk[0] = ' ' + (077 & (*s >> 2));
3216 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3217 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3218 hunk[3] = ' ' + (077 & (s[2] & 077));
3219 sv_catpvn(sv, hunk, 4);
3223 for (s = SvPVX(sv); *s; s++) {
3227 sv_catpvn(sv, "\n", 1);
3235 SV *result = newSVpv("", l);
3236 char *result_c = SvPV(result, na); /* convenience */
3237 char *out = result_c;
3247 SvREFCNT_dec(result);
3270 SvREFCNT_dec(result);
3276 SvCUR_set(result, out - result_c);
3282 SV *pnum; /* must be '\0' terminated */
3286 char *s = SvPV(pnum, len);
3295 i = m * 10 + (*t - '0');
3297 r = (i >> 7); /* r < 10 */
3304 SvCUR_set(pnum, (STRLEN) (t - s));
3311 dSP; dMARK; dORIGMARK; dTARGET;
3312 register SV *cat = TARG;
3315 register char *pat = SvPVx(*++MARK, fromlen);
3316 register char *patend = pat + fromlen;
3321 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3322 static char *space10 = " ";
3324 /* These must not be in registers: */
3333 unsigned Quad_t auquad;
3341 sv_setpvn(cat, "", 0);
3342 while (pat < patend) {
3343 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3346 len = strchr("@Xxu", datumtype) ? 0 : items;
3349 else if (isDIGIT(*pat)) {
3351 while (isDIGIT(*pat))
3352 len = (len * 10) + (*pat++ - '0');
3360 DIE("%% may only be used in unpack");
3371 if (SvCUR(cat) < len)
3372 DIE("X outside of string");
3379 sv_catpvn(cat, null10, 10);
3382 sv_catpvn(cat, null10, len);
3387 aptr = SvPV(fromstr, fromlen);
3391 sv_catpvn(cat, aptr, len);
3393 sv_catpvn(cat, aptr, fromlen);
3395 if (datumtype == 'A') {
3397 sv_catpvn(cat, space10, 10);
3400 sv_catpvn(cat, space10, len);
3404 sv_catpvn(cat, null10, 10);
3407 sv_catpvn(cat, null10, len);
3414 char *savepat = pat;
3419 aptr = SvPV(fromstr, fromlen);
3424 SvCUR(cat) += (len+7)/8;
3425 SvGROW(cat, SvCUR(cat) + 1);
3426 aptr = SvPVX(cat) + aint;
3431 if (datumtype == 'B') {
3432 for (len = 0; len++ < aint;) {
3433 items |= *pat++ & 1;
3437 *aptr++ = items & 0xff;
3443 for (len = 0; len++ < aint;) {
3449 *aptr++ = items & 0xff;
3455 if (datumtype == 'B')
3456 items <<= 7 - (aint & 7);
3458 items >>= 7 - (aint & 7);
3459 *aptr++ = items & 0xff;
3461 pat = SvPVX(cat) + SvCUR(cat);
3472 char *savepat = pat;
3477 aptr = SvPV(fromstr, fromlen);
3482 SvCUR(cat) += (len+1)/2;
3483 SvGROW(cat, SvCUR(cat) + 1);
3484 aptr = SvPVX(cat) + aint;
3489 if (datumtype == 'H') {
3490 for (len = 0; len++ < aint;) {
3492 items |= ((*pat++ & 15) + 9) & 15;
3494 items |= *pat++ & 15;
3498 *aptr++ = items & 0xff;
3504 for (len = 0; len++ < aint;) {
3506 items |= (((*pat++ & 15) + 9) & 15) << 4;
3508 items |= (*pat++ & 15) << 4;
3512 *aptr++ = items & 0xff;
3518 *aptr++ = items & 0xff;
3519 pat = SvPVX(cat) + SvCUR(cat);
3531 aint = SvIV(fromstr);
3533 sv_catpvn(cat, &achar, sizeof(char));
3536 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3541 afloat = (float)SvNV(fromstr);
3542 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3549 adouble = (double)SvNV(fromstr);
3550 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3556 ashort = (I16)SvIV(fromstr);
3558 ashort = htons(ashort);
3560 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3566 ashort = (I16)SvIV(fromstr);
3568 ashort = htovs(ashort);
3570 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3577 ashort = (I16)SvIV(fromstr);
3578 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3584 auint = U_I(SvNV(fromstr));
3585 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3591 adouble = floor(SvNV(fromstr));
3594 croak("Cannot compress negative numbers");
3596 if (adouble <= UV_MAX) {
3597 char buf[1 + sizeof(UV)];
3598 char *in = buf + sizeof(buf);
3599 UV auv = U_V(adouble);;
3602 *--in = (auv & 0x7f) | 0x80;
3605 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3606 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3608 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3609 char *from, *result, *in;
3614 /* Copy string and check for compliance */
3615 from = SvPV(fromstr, len);
3616 if ((norm = is_an_int(from, len)) == NULL)
3617 croak("can compress only unsigned integer");
3619 New('w', result, len, char);
3623 *--in = div128(norm, &done) | 0x80;
3624 result[len - 1] &= 0x7F; /* clear continue bit */
3625 sv_catpvn(cat, in, (result + len) - in);
3627 SvREFCNT_dec(norm); /* free norm */
3629 else if (SvNOKp(fromstr)) {
3630 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3631 char *in = buf + sizeof(buf);
3634 double next = floor(adouble / 128);
3635 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3636 if (--in < buf) /* this cannot happen ;-) */
3637 croak ("Cannot compress integer");
3639 } while (adouble > 0);
3640 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3641 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3644 croak("Cannot compress non integer");
3650 aint = SvIV(fromstr);
3651 sv_catpvn(cat, (char*)&aint, sizeof(int));
3657 aulong = U_L(SvNV(fromstr));
3659 aulong = htonl(aulong);
3661 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3667 aulong = U_L(SvNV(fromstr));
3669 aulong = htovl(aulong);
3671 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3677 aulong = U_L(SvNV(fromstr));
3678 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3684 along = SvIV(fromstr);
3685 sv_catpvn(cat, (char*)&along, sizeof(I32));
3692 auquad = (unsigned Quad_t)SvIV(fromstr);
3693 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3699 aquad = (Quad_t)SvIV(fromstr);
3700 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3703 #endif /* HAS_QUAD */
3705 len = 1; /* assume SV is correct length */
3710 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3711 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3716 aptr = SvPV(fromstr, fromlen);
3717 SvGROW(cat, fromlen * 4 / 3);
3722 while (fromlen > 0) {
3729 doencodes(cat, aptr, todo);
3747 register I32 limit = POPi; /* note, negative is forever */
3750 register char *s = SvPV(sv, len);
3751 char *strend = s + len;
3753 register REGEXP *rx;
3757 I32 maxiters = (strend - s) + 10;
3760 I32 origlimit = limit;
3763 AV *oldstack = curstack;
3765 I32 oldsave = savestack_ix;
3768 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3773 DIE("panic: do_split");
3774 rx = pm->op_pmregexp;
3776 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3777 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3779 if (pm->op_pmreplroot)
3780 ary = GvAVn((GV*)pm->op_pmreplroot);
3781 else if (gimme != G_ARRAY)
3785 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3789 for (i = AvFILL(ary); i >= 0; i--)
3790 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3794 /* temporarily switch stacks */
3795 SWITCHSTACK(curstack, ary);
3797 base = SP - stack_base;
3799 if (pm->op_pmflags & PMf_SKIPWHITE) {
3800 if (pm->op_pmflags & PMf_LOCALE) {
3801 while (isSPACE_LC(*s))
3809 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3811 multiline = pm->op_pmflags & PMf_MULTILINE;
3815 limit = maxiters + 2;
3816 if (pm->op_pmflags & PMf_WHITE) {
3819 while (m < strend &&
3820 !((pm->op_pmflags & PMf_LOCALE)
3821 ? isSPACE_LC(*m) : isSPACE(*m)))
3826 dstr = NEWSV(30, m-s);
3827 sv_setpvn(dstr, s, m-s);
3833 while (s < strend &&
3834 ((pm->op_pmflags & PMf_LOCALE)
3835 ? isSPACE_LC(*s) : isSPACE(*s)))
3839 else if (strEQ("^", rx->precomp)) {
3842 for (m = s; m < strend && *m != '\n'; m++) ;
3846 dstr = NEWSV(30, m-s);
3847 sv_setpvn(dstr, s, m-s);
3854 else if (pm->op_pmshort && !rx->nparens) {
3855 i = SvCUR(pm->op_pmshort);
3857 i = *SvPVX(pm->op_pmshort);
3860 for (m = s; m < strend && *m != i; m++) ;
3863 dstr = NEWSV(30, m-s);
3864 sv_setpvn(dstr, s, m-s);
3873 while (s < strend && --limit &&
3874 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3878 dstr = NEWSV(31, m-s);
3879 sv_setpvn(dstr, s, m-s);
3888 maxiters += (strend - s) * rx->nparens;
3889 while (s < strend && --limit &&
3890 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3892 TAINT_IF(rx->exec_tainted);
3894 && rx->subbase != orig) {
3899 strend = s + (strend - m);
3902 dstr = NEWSV(32, m-s);
3903 sv_setpvn(dstr, s, m-s);
3908 for (i = 1; i <= rx->nparens; i++) {
3912 dstr = NEWSV(33, m-s);
3913 sv_setpvn(dstr, s, m-s);
3916 dstr = NEWSV(33, 0);
3925 LEAVE_SCOPE(oldsave);
3926 iters = (SP - stack_base) - base;
3927 if (iters > maxiters)
3930 /* keep field after final delim? */
3931 if (s < strend || (iters && origlimit)) {
3932 dstr = NEWSV(34, strend-s);
3933 sv_setpvn(dstr, s, strend-s);
3939 else if (!origlimit) {
3940 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3944 SWITCHSTACK(ary, oldstack);
3945 if (gimme == G_ARRAY) {
3947 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3953 if (gimme == G_ARRAY)
3956 if (iters || !pm->op_pmreplroot) {