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)
201 vivify_ref(sv, 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') {
325 if (!(sv = LvTARG(sv)))
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) || SvTYPE(TOPs) > SVt_PVLV)
583 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
584 SvIVX(TOPs) != IV_MIN)
587 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
598 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
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);
619 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
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);
695 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
697 right = (right_neg = (i < 0)) ? -i : i;
701 right = U_V((right_neg = (n < 0)) ? -n : n);
704 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
706 left = (left_neg = (i < 0)) ? -i : i;
710 left = U_V((left_neg = (n < 0)) ? -n : n);
714 DIE("Illegal modulus zero");
717 if ((left_neg != right_neg) && ans)
720 if (ans <= -(UV)IV_MAX)
721 sv_setiv(TARG, (IV) -ans);
723 sv_setnv(TARG, -(double)ans);
734 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
736 register I32 count = POPi;
737 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
739 I32 items = SP - MARK;
751 repeatcpy((char*)(MARK + items), (char*)MARK,
752 items * sizeof(SV*), count - 1);
758 else { /* Note: mark already snarfed by pp_list */
763 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
764 if (SvREADONLY(tmpstr) && curcop != &compiling)
765 DIE("Can't x= to readonly value");
769 SvSetSV(TARG, tmpstr);
770 SvPV_force(TARG, len);
775 SvGROW(TARG, (count * len) + 1);
776 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
777 SvCUR(TARG) *= count;
781 (void)SvPOK_only(TARG);
790 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
793 SETn( left - right );
800 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
803 if (op->op_private & HINT_INTEGER) {
817 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
820 if (op->op_private & HINT_INTEGER) {
834 dSP; tryAMAGICbinSET(lt,0);
837 SETs((TOPn < value) ? &sv_yes : &sv_no);
844 dSP; tryAMAGICbinSET(gt,0);
847 SETs((TOPn > value) ? &sv_yes : &sv_no);
854 dSP; tryAMAGICbinSET(le,0);
857 SETs((TOPn <= value) ? &sv_yes : &sv_no);
864 dSP; tryAMAGICbinSET(ge,0);
867 SETs((TOPn >= value) ? &sv_yes : &sv_no);
874 dSP; tryAMAGICbinSET(ne,0);
877 SETs((TOPn != value) ? &sv_yes : &sv_no);
884 dSP; dTARGET; tryAMAGICbin(ncmp,0);
891 else if (left < right)
893 else if (left > right)
906 dSP; tryAMAGICbinSET(slt,0);
909 int cmp = ((op->op_private & OPpLOCALE)
910 ? sv_cmp_locale(left, right)
911 : sv_cmp(left, right));
912 SETs( cmp < 0 ? &sv_yes : &sv_no );
919 dSP; tryAMAGICbinSET(sgt,0);
922 int cmp = ((op->op_private & OPpLOCALE)
923 ? sv_cmp_locale(left, right)
924 : sv_cmp(left, right));
925 SETs( cmp > 0 ? &sv_yes : &sv_no );
932 dSP; tryAMAGICbinSET(sle,0);
935 int cmp = ((op->op_private & OPpLOCALE)
936 ? sv_cmp_locale(left, right)
937 : sv_cmp(left, right));
938 SETs( cmp <= 0 ? &sv_yes : &sv_no );
945 dSP; tryAMAGICbinSET(sge,0);
948 int cmp = ((op->op_private & OPpLOCALE)
949 ? sv_cmp_locale(left, right)
950 : sv_cmp(left, right));
951 SETs( cmp >= 0 ? &sv_yes : &sv_no );
958 dSP; tryAMAGICbinSET(seq,0);
961 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
968 dSP; tryAMAGICbinSET(sne,0);
971 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
978 dSP; dTARGET; tryAMAGICbin(scmp,0);
981 int cmp = ((op->op_private & OPpLOCALE)
982 ? sv_cmp_locale(left, right)
983 : sv_cmp(left, right));
991 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
994 if (SvNIOKp(left) || SvNIOKp(right)) {
995 if (op->op_private & HINT_INTEGER) {
996 IBW value = SvIV(left) & SvIV(right);
1000 UBW value = SvUV(left) & SvUV(right);
1005 do_vop(op->op_type, TARG, left, right);
1014 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1017 if (SvNIOKp(left) || SvNIOKp(right)) {
1018 if (op->op_private & HINT_INTEGER) {
1019 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1023 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1028 do_vop(op->op_type, TARG, left, right);
1037 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1040 if (SvNIOKp(left) || SvNIOKp(right)) {
1041 if (op->op_private & HINT_INTEGER) {
1042 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1046 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1051 do_vop(op->op_type, TARG, left, right);
1060 dSP; dTARGET; tryAMAGICun(neg);
1065 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1067 else if (SvNIOKp(sv))
1069 else if (SvPOKp(sv)) {
1071 char *s = SvPV(sv, len);
1072 if (isIDFIRST(*s)) {
1073 sv_setpvn(TARG, "-", 1);
1076 else if (*s == '+' || *s == '-') {
1078 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1081 sv_setnv(TARG, -SvNV(sv));
1093 dSP; tryAMAGICunSET(not);
1094 #endif /* OVERLOAD */
1095 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1101 dSP; dTARGET; tryAMAGICun(compl);
1105 if (op->op_private & HINT_INTEGER) {
1106 IBW value = ~SvIV(sv);
1110 UBW value = ~SvUV(sv);
1115 register char *tmps;
1116 register long *tmpl;
1121 tmps = SvPV_force(TARG, len);
1124 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1127 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1131 for ( ; anum > 0; anum--, tmps++)
1140 /* integer versions of some of the above */
1144 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1147 SETi( left * right );
1154 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1158 DIE("Illegal division by zero");
1159 value = POPi / value;
1167 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1171 DIE("Illegal modulus zero");
1172 SETi( left % right );
1179 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1182 SETi( left + right );
1189 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1192 SETi( left - right );
1199 dSP; tryAMAGICbinSET(lt,0);
1202 SETs((left < right) ? &sv_yes : &sv_no);
1209 dSP; tryAMAGICbinSET(gt,0);
1212 SETs((left > right) ? &sv_yes : &sv_no);
1219 dSP; tryAMAGICbinSET(le,0);
1222 SETs((left <= right) ? &sv_yes : &sv_no);
1229 dSP; tryAMAGICbinSET(ge,0);
1232 SETs((left >= right) ? &sv_yes : &sv_no);
1239 dSP; tryAMAGICbinSET(eq,0);
1242 SETs((left == right) ? &sv_yes : &sv_no);
1249 dSP; tryAMAGICbinSET(ne,0);
1252 SETs((left != right) ? &sv_yes : &sv_no);
1259 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1266 else if (left < right)
1277 dSP; dTARGET; tryAMAGICun(neg);
1282 /* High falutin' math. */
1286 dSP; dTARGET; tryAMAGICbin(atan2,0);
1289 SETn(atan2(left, right));
1296 dSP; dTARGET; tryAMAGICun(sin);
1308 dSP; dTARGET; tryAMAGICun(cos);
1328 if (!srand_called) {
1329 (void)srand((unsigned)seed());
1330 srand_called = TRUE;
1333 value = rand() * value / 2147483648.0;
1336 value = rand() * value / 65536.0;
1339 value = rand() * value / 32768.0;
1341 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1357 (void)srand((unsigned)anum);
1358 srand_called = TRUE;
1367 * This is really just a quick hack which grabs various garbage
1368 * values. It really should be a real hash algorithm which
1369 * spreads the effect of every input bit onto every output bit,
1370 * if someone who knows about such tings would bother to write it.
1371 * Might be a good idea to add that function to CORE as well.
1372 * No numbers below come from careful analysis or anyting here,
1373 * except they are primes and SEED_C1 > 1E6 to get a full-width
1374 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1375 * probably be bigger too.
1378 # define SEED_C1 1000003
1379 #define SEED_C4 73819
1381 # define SEED_C1 25747
1382 #define SEED_C4 20639
1386 #define SEED_C5 26107
1390 # include <starlet.h>
1391 unsigned int when[2];
1392 _ckvmssts(sys$gettim(when));
1393 /* Please tell us: Which value is seconds and what is the other here? */
1394 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1396 # ifdef HAS_GETTIMEOFDAY
1397 struct timeval when;
1398 gettimeofday(&when,(struct timezone *) 0);
1399 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1403 u = (U32)SEED_C1 * when;
1406 u += SEED_C3 * (U32)getpid();
1407 u += SEED_C4 * (U32)stack_sp;
1408 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1409 u += SEED_C5 * (U32)&when;
1416 dSP; dTARGET; tryAMAGICun(exp);
1428 dSP; dTARGET; tryAMAGICun(log);
1433 SET_NUMERIC_STANDARD();
1434 DIE("Can't take log of %g", value);
1444 dSP; dTARGET; tryAMAGICun(sqrt);
1449 SET_NUMERIC_STANDARD();
1450 DIE("Can't take sqrt of %g", value);
1452 value = sqrt(value);
1462 double value = TOPn;
1465 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1471 (void)modf(value, &value);
1473 (void)modf(-value, &value);
1488 dSP; dTARGET; tryAMAGICun(abs);
1490 double value = TOPn;
1493 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1494 (iv = SvIVX(TOPs)) != IV_MIN) {
1515 XPUSHu(scan_hex(tmps, 99, &argtype));
1527 while (*tmps && isSPACE(*tmps))
1532 value = scan_hex(++tmps, 99, &argtype);
1534 value = scan_oct(tmps, 99, &argtype);
1544 SETi( sv_len(TOPs) );
1556 I32 lvalue = op->op_flags & OPf_MOD;
1558 I32 arybase = curcop->cop_arybase;
1562 pos = POPi - arybase;
1564 tmps = SvPV(sv, curlen);
1566 pos += curlen + arybase;
1567 if (pos < 0 && MAXARG < 3)
1570 if (pos < 0 || pos > curlen) {
1571 if (dowarn || lvalue)
1572 warn("substr outside of string");
1579 len += curlen - pos;
1584 rem = curlen - pos; /* rem=how many bytes left*/
1587 sv_setpvn(TARG, tmps, rem);
1588 if (lvalue) { /* it's an lvalue! */
1589 if (!SvGMAGICAL(sv)) {
1593 warn("Attempt to use reference as lvalue in substr");
1595 if (SvOK(sv)) /* is it defined ? */
1596 (void)SvPOK_only(sv);
1598 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1601 if (SvTYPE(TARG) < SVt_PVLV) {
1602 sv_upgrade(TARG, SVt_PVLV);
1603 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1608 LvTARGOFF(TARG) = pos;
1609 LvTARGLEN(TARG) = rem;
1612 PUSHs(TARG); /* avoid SvSETMAGIC here */
1619 register I32 size = POPi;
1620 register I32 offset = POPi;
1621 register SV *src = POPs;
1622 I32 lvalue = op->op_flags & OPf_MOD;
1624 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1625 unsigned long retnum;
1628 offset *= size; /* turn into bit offset */
1629 len = (offset + size + 7) / 8;
1630 if (offset < 0 || size < 1)
1633 if (lvalue) { /* it's an lvalue! */
1634 if (SvTYPE(TARG) < SVt_PVLV) {
1635 sv_upgrade(TARG, SVt_PVLV);
1636 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1641 LvTARGOFF(TARG) = offset;
1642 LvTARGLEN(TARG) = size;
1650 if (offset >= srclen)
1653 retnum = (unsigned long) s[offset] << 8;
1655 else if (size == 32) {
1656 if (offset >= srclen)
1658 else if (offset + 1 >= srclen)
1659 retnum = (unsigned long) s[offset] << 24;
1660 else if (offset + 2 >= srclen)
1661 retnum = ((unsigned long) s[offset] << 24) +
1662 ((unsigned long) s[offset + 1] << 16);
1664 retnum = ((unsigned long) s[offset] << 24) +
1665 ((unsigned long) s[offset + 1] << 16) +
1666 (s[offset + 2] << 8);
1671 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1676 else if (size == 16)
1677 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1678 else if (size == 32)
1679 retnum = ((unsigned long) s[offset] << 24) +
1680 ((unsigned long) s[offset + 1] << 16) +
1681 (s[offset + 2] << 8) + s[offset+3];
1685 sv_setiv(TARG, (IV)retnum);
1700 I32 arybase = curcop->cop_arybase;
1705 offset = POPi - arybase;
1708 tmps = SvPV(big, biglen);
1711 else if (offset > biglen)
1713 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1714 (unsigned char*)tmps + biglen, little)))
1715 retval = -1 + arybase;
1717 retval = tmps2 - tmps + arybase;
1734 I32 arybase = curcop->cop_arybase;
1740 tmps2 = SvPV(little, llen);
1741 tmps = SvPV(big, blen);
1745 offset = SvIV(offstr) - arybase + llen;
1748 else if (offset > blen)
1750 if (!(tmps2 = rninstr(tmps, tmps + offset,
1751 tmps2, tmps2 + llen)))
1752 retval = -1 + arybase;
1754 retval = tmps2 - tmps + arybase;
1761 dSP; dMARK; dORIGMARK; dTARGET;
1762 #ifdef USE_LOCALE_NUMERIC
1763 if (op->op_private & OPpLOCALE)
1764 SET_NUMERIC_LOCAL();
1766 SET_NUMERIC_STANDARD();
1768 do_sprintf(TARG, SP-MARK, MARK+1);
1769 TAINT_IF(SvTAINTED(TARG));
1783 value = (I32) (*tmps & 255);
1788 value = (I32) (anum & 255);
1799 (void)SvUPGRADE(TARG,SVt_PV);
1805 (void)SvPOK_only(TARG);
1812 dSP; dTARGET; dPOPTOPssrl;
1814 char *tmps = SvPV(left, na);
1816 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1818 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1822 "The crypt() function is unimplemented due to excessive paranoia.");
1834 if (!SvPADTMP(sv)) {
1840 s = SvPV_force(sv, na);
1842 if (op->op_private & OPpLOCALE) {
1845 *s = toUPPER_LC(*s);
1860 if (!SvPADTMP(sv)) {
1866 s = SvPV_force(sv, na);
1868 if (op->op_private & OPpLOCALE) {
1871 *s = toLOWER_LC(*s);
1888 if (!SvPADTMP(sv)) {
1895 s = SvPV_force(sv, len);
1897 register char *send = s + len;
1899 if (op->op_private & OPpLOCALE) {
1902 for (; s < send; s++)
1903 *s = toUPPER_LC(*s);
1906 for (; s < send; s++)
1920 if (!SvPADTMP(sv)) {
1927 s = SvPV_force(sv, len);
1929 register char *send = s + len;
1931 if (op->op_private & OPpLOCALE) {
1934 for (; s < send; s++)
1935 *s = toLOWER_LC(*s);
1938 for (; s < send; s++)
1950 register char *s = SvPV(sv,len);
1954 (void)SvUPGRADE(TARG, SVt_PV);
1955 SvGROW(TARG, (len * 2) + 1);
1963 SvCUR_set(TARG, d - SvPVX(TARG));
1964 (void)SvPOK_only(TARG);
1967 sv_setpvn(TARG, s, len);
1976 dSP; dMARK; dORIGMARK;
1978 register AV* av = (AV*)POPs;
1979 register I32 lval = op->op_flags & OPf_MOD;
1980 I32 arybase = curcop->cop_arybase;
1983 if (SvTYPE(av) == SVt_PVAV) {
1984 if (lval && op->op_private & OPpLVAL_INTRO) {
1986 for (svp = mark + 1; svp <= sp; svp++) {
1991 if (max > AvMAX(av))
1994 while (++MARK <= SP) {
1995 elem = SvIVx(*MARK);
1999 svp = av_fetch(av, elem, lval);
2001 if (!svp || *svp == &sv_undef)
2002 DIE(no_aelem, elem);
2003 if (op->op_private & OPpLVAL_INTRO)
2006 *MARK = svp ? *svp : &sv_undef;
2009 if (GIMME != G_ARRAY) {
2017 /* Associative arrays. */
2022 HV *hash = (HV*)POPs;
2026 entry = hv_iternext(hash); /* might clobber stack_sp */
2031 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2032 if (GIMME == G_ARRAY) {
2034 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
2039 else if (GIMME == G_SCALAR)
2061 if (op->op_private & OPpSLICE) {
2064 if (SvTYPE(hv) != SVt_PVHV)
2065 DIE("Not a HASH reference");
2066 while (++MARK <= SP) {
2067 sv = hv_delete_ent(hv, *MARK,
2068 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2069 *MARK = sv ? sv : &sv_undef;
2071 if (GIMME != G_ARRAY) {
2080 if (SvTYPE(hv) != SVt_PVHV)
2081 DIE("Not a HASH reference");
2082 sv = hv_delete_ent(hv, keysv,
2083 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2097 if (SvTYPE(hv) != SVt_PVHV) {
2098 DIE("Not a HASH reference");
2100 if (hv_exists_ent(hv, tmpsv, 0))
2107 dSP; dMARK; dORIGMARK;
2109 register HV *hv = (HV*)POPs;
2110 register I32 lval = op->op_flags & OPf_MOD;
2112 if (SvTYPE(hv) == SVt_PVHV) {
2113 while (++MARK <= SP) {
2116 he = hv_fetch_ent(hv, keysv, lval, 0);
2118 if (!he || HeVAL(he) == &sv_undef)
2119 DIE(no_helem, SvPV(keysv, na));
2120 if (op->op_private & OPpLVAL_INTRO)
2121 save_svref(&HeVAL(he));
2123 *MARK = he ? HeVAL(he) : &sv_undef;
2126 if (GIMME != G_ARRAY) {
2134 /* List operators. */
2139 if (GIMME != G_ARRAY) {
2141 *MARK = *SP; /* unwanted list, return last item */
2152 SV **lastrelem = stack_sp;
2153 SV **lastlelem = stack_base + POPMARK;
2154 SV **firstlelem = stack_base + POPMARK + 1;
2155 register SV **firstrelem = lastlelem + 1;
2156 I32 arybase = curcop->cop_arybase;
2157 I32 lval = op->op_flags & OPf_MOD;
2158 I32 is_something_there = lval;
2160 register I32 max = lastrelem - lastlelem;
2161 register SV **lelem;
2164 if (GIMME != G_ARRAY) {
2165 ix = SvIVx(*lastlelem);
2170 if (ix < 0 || ix >= max)
2171 *firstlelem = &sv_undef;
2173 *firstlelem = firstrelem[ix];
2179 SP = firstlelem - 1;
2183 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2189 else if (!(*lelem = firstrelem[ix]))
2194 if (ix >= max || !(*lelem = firstrelem[ix]))
2197 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2198 is_something_there = TRUE;
2200 if (is_something_there)
2203 SP = firstlelem - 1;
2209 dSP; dMARK; dORIGMARK;
2210 I32 items = SP - MARK;
2211 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2212 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2219 dSP; dMARK; dORIGMARK;
2220 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2224 SV *val = NEWSV(46, 0);
2226 sv_setsv(val, *++MARK);
2228 warn("Odd number of elements in hash list");
2229 (void)hv_store_ent(hv,key,val,0);
2238 dSP; dMARK; dORIGMARK;
2239 register AV *ary = (AV*)*++MARK;
2243 register I32 offset;
2244 register I32 length;
2253 offset = SvIVx(*MARK);
2255 offset += AvFILL(ary) + 1;
2257 offset -= curcop->cop_arybase;
2259 length = SvIVx(*MARK++);
2264 length = AvMAX(ary) + 1; /* close enough to infinity */
2268 length = AvMAX(ary) + 1;
2276 if (offset > AvFILL(ary) + 1)
2277 offset = AvFILL(ary) + 1;
2278 after = AvFILL(ary) + 1 - (offset + length);
2279 if (after < 0) { /* not that much array */
2280 length += after; /* offset+length now in array */
2286 /* At this point, MARK .. SP-1 is our new LIST */
2289 diff = newlen - length;
2291 if (diff < 0) { /* shrinking the area */
2293 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2294 Copy(MARK, tmparyval, newlen, SV*);
2297 MARK = ORIGMARK + 1;
2298 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2299 MEXTEND(MARK, length);
2300 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2302 EXTEND_MORTAL(length);
2303 for (i = length, dst = MARK; i; i--) {
2304 if (!SvIMMORTAL(*dst))
2305 sv_2mortal(*dst); /* free them eventualy */
2312 *MARK = AvARRAY(ary)[offset+length-1];
2314 if (!SvIMMORTAL(*MARK))
2316 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2317 SvREFCNT_dec(*dst++); /* free them now */
2320 AvFILL(ary) += diff;
2322 /* pull up or down? */
2324 if (offset < after) { /* easier to pull up */
2325 if (offset) { /* esp. if nothing to pull */
2326 src = &AvARRAY(ary)[offset-1];
2327 dst = src - diff; /* diff is negative */
2328 for (i = offset; i > 0; i--) /* can't trust Copy */
2332 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2336 if (after) { /* anything to pull down? */
2337 src = AvARRAY(ary) + offset + length;
2338 dst = src + diff; /* diff is negative */
2339 Move(src, dst, after, SV*);
2341 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2342 /* avoid later double free */
2346 dst[--i] = &sv_undef;
2349 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2351 *dst = NEWSV(46, 0);
2352 sv_setsv(*dst++, *src++);
2354 Safefree(tmparyval);
2357 else { /* no, expanding (or same) */
2359 New(452, tmparyval, length, SV*); /* so remember deletion */
2360 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2363 if (diff > 0) { /* expanding */
2365 /* push up or down? */
2367 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2371 Move(src, dst, offset, SV*);
2373 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2375 AvFILL(ary) += diff;
2378 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2379 av_extend(ary, AvFILL(ary) + diff);
2380 AvFILL(ary) += diff;
2383 dst = AvARRAY(ary) + AvFILL(ary);
2385 for (i = after; i; i--) {
2392 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2393 *dst = NEWSV(46, 0);
2394 sv_setsv(*dst++, *src++);
2396 MARK = ORIGMARK + 1;
2397 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2399 Copy(tmparyval, MARK, length, SV*);
2401 EXTEND_MORTAL(length);
2402 for (i = length, dst = MARK; i; i--) {
2403 if (!SvIMMORTAL(*dst))
2404 sv_2mortal(*dst); /* free them eventualy */
2408 Safefree(tmparyval);
2412 else if (length--) {
2413 *MARK = tmparyval[length];
2415 if (!SvIMMORTAL(*MARK))
2417 while (length-- > 0)
2418 SvREFCNT_dec(tmparyval[length]);
2420 Safefree(tmparyval);
2431 dSP; dMARK; dORIGMARK; dTARGET;
2432 register AV *ary = (AV*)*++MARK;
2433 register SV *sv = &sv_undef;
2435 for (++MARK; MARK <= SP; MARK++) {
2438 sv_setsv(sv, *MARK);
2442 PUSHi( AvFILL(ary) + 1 );
2450 SV *sv = av_pop(av);
2451 if (!SvIMMORTAL(sv) && AvREAL(av))
2452 (void)sv_2mortal(sv);
2461 SV *sv = av_shift(av);
2465 if (!SvIMMORTAL(sv) && AvREAL(av))
2466 (void)sv_2mortal(sv);
2473 dSP; dMARK; dORIGMARK; dTARGET;
2474 register AV *ary = (AV*)*++MARK;
2478 av_unshift(ary, SP - MARK);
2481 sv_setsv(sv, *++MARK);
2482 (void)av_store(ary, i++, sv);
2486 PUSHi( AvFILL(ary) + 1 );
2496 if (GIMME == G_ARRAY) {
2507 register char *down;
2513 do_join(TARG, &sv_no, MARK, SP);
2515 sv_setsv(TARG, *SP);
2516 up = SvPV_force(TARG, len);
2518 down = SvPVX(TARG) + len - 1;
2524 (void)SvPOK_only(TARG);
2538 char *s = SvPV(sv, len);
2542 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2543 SV *new = newSVpv("0000000000", 10);
2546 SvREFCNT_dec(sv); /* free old sv */
2551 while (!*t) /* trailing '\0'? */
2554 i = ((*t - '0') << 7) + m;
2555 *(t--) = '0' + (i % 10);
2561 /* Explosives and implosives. */
2571 register char *pat = SvPV(left, llen);
2572 register char *s = SvPV(right, rlen);
2573 char *strend = s + rlen;
2575 register char *patend = pat + llen;
2580 /* These must not be in registers: */
2591 unsigned Quad_t auquad;
2597 register U32 culong;
2599 static char* bitcount = 0;
2601 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2603 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2604 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2606 while (isDIGIT(*patend) || *patend == '*')
2612 while (pat < patend) {
2617 else if (*pat == '*') {
2618 len = strend - strbeg; /* long enough */
2621 else if (isDIGIT(*pat)) {
2623 while (isDIGIT(*pat))
2624 len = (len * 10) + (*pat++ - '0');
2627 len = (datumtype != '@');
2632 if (len == 1 && pat[-1] != '1')
2641 if (len > strend - strbeg)
2642 DIE("@ outside of string");
2646 if (len > s - strbeg)
2647 DIE("X outside of string");
2651 if (len > strend - s)
2652 DIE("x outside of string");
2657 if (len > strend - s)
2660 goto uchar_checksum;
2661 sv = NEWSV(35, len);
2662 sv_setpvn(sv, s, len);
2664 if (datumtype == 'A') {
2665 aptr = s; /* borrow register */
2666 s = SvPVX(sv) + len - 1;
2667 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2670 SvCUR_set(sv, s - SvPVX(sv));
2671 s = aptr; /* unborrow register */
2673 XPUSHs(sv_2mortal(sv));
2677 if (pat[-1] == '*' || len > (strend - s) * 8)
2678 len = (strend - s) * 8;
2681 Newz(601, bitcount, 256, char);
2682 for (bits = 1; bits < 256; bits++) {
2683 if (bits & 1) bitcount[bits]++;
2684 if (bits & 2) bitcount[bits]++;
2685 if (bits & 4) bitcount[bits]++;
2686 if (bits & 8) bitcount[bits]++;
2687 if (bits & 16) bitcount[bits]++;
2688 if (bits & 32) bitcount[bits]++;
2689 if (bits & 64) bitcount[bits]++;
2690 if (bits & 128) bitcount[bits]++;
2694 culong += bitcount[*(unsigned char*)s++];
2699 if (datumtype == 'b') {
2701 if (bits & 1) culong++;
2707 if (bits & 128) culong++;
2714 sv = NEWSV(35, len + 1);
2717 aptr = pat; /* borrow register */
2719 if (datumtype == 'b') {
2721 for (len = 0; len < aint; len++) {
2722 if (len & 7) /*SUPPRESS 595*/
2726 *pat++ = '0' + (bits & 1);
2731 for (len = 0; len < aint; len++) {
2736 *pat++ = '0' + ((bits & 128) != 0);
2740 pat = aptr; /* unborrow register */
2741 XPUSHs(sv_2mortal(sv));
2745 if (pat[-1] == '*' || len > (strend - s) * 2)
2746 len = (strend - s) * 2;
2747 sv = NEWSV(35, len + 1);
2750 aptr = pat; /* borrow register */
2752 if (datumtype == 'h') {
2754 for (len = 0; len < aint; len++) {
2759 *pat++ = hexdigit[bits & 15];
2764 for (len = 0; len < aint; len++) {
2769 *pat++ = hexdigit[(bits >> 4) & 15];
2773 pat = aptr; /* unborrow register */
2774 XPUSHs(sv_2mortal(sv));
2777 if (len > strend - s)
2782 if (aint >= 128) /* fake up signed chars */
2792 if (aint >= 128) /* fake up signed chars */
2795 sv_setiv(sv, (IV)aint);
2796 PUSHs(sv_2mortal(sv));
2801 if (len > strend - s)
2816 sv_setiv(sv, (IV)auint);
2817 PUSHs(sv_2mortal(sv));
2822 along = (strend - s) / sizeof(I16);
2827 Copy(s, &ashort, 1, I16);
2836 Copy(s, &ashort, 1, I16);
2839 sv_setiv(sv, (IV)ashort);
2840 PUSHs(sv_2mortal(sv));
2847 along = (strend - s) / sizeof(U16);
2852 Copy(s, &aushort, 1, U16);
2855 if (datumtype == 'n')
2856 aushort = ntohs(aushort);
2859 if (datumtype == 'v')
2860 aushort = vtohs(aushort);
2869 Copy(s, &aushort, 1, U16);
2873 if (datumtype == 'n')
2874 aushort = ntohs(aushort);
2877 if (datumtype == 'v')
2878 aushort = vtohs(aushort);
2880 sv_setiv(sv, (IV)aushort);
2881 PUSHs(sv_2mortal(sv));
2886 along = (strend - s) / sizeof(int);
2891 Copy(s, &aint, 1, int);
2894 cdouble += (double)aint;
2903 Copy(s, &aint, 1, int);
2906 sv_setiv(sv, (IV)aint);
2907 PUSHs(sv_2mortal(sv));
2912 along = (strend - s) / sizeof(unsigned int);
2917 Copy(s, &auint, 1, unsigned int);
2918 s += sizeof(unsigned int);
2920 cdouble += (double)auint;
2929 Copy(s, &auint, 1, unsigned int);
2930 s += sizeof(unsigned int);
2932 sv_setuv(sv, (UV)auint);
2933 PUSHs(sv_2mortal(sv));
2938 along = (strend - s) / sizeof(I32);
2943 Copy(s, &along, 1, I32);
2946 cdouble += (double)along;
2955 Copy(s, &along, 1, I32);
2958 sv_setiv(sv, (IV)along);
2959 PUSHs(sv_2mortal(sv));
2966 along = (strend - s) / sizeof(U32);
2971 Copy(s, &aulong, 1, U32);
2974 if (datumtype == 'N')
2975 aulong = ntohl(aulong);
2978 if (datumtype == 'V')
2979 aulong = vtohl(aulong);
2982 cdouble += (double)aulong;
2991 Copy(s, &aulong, 1, U32);
2994 if (datumtype == 'N')
2995 aulong = ntohl(aulong);
2998 if (datumtype == 'V')
2999 aulong = vtohl(aulong);
3002 sv_setuv(sv, (UV)aulong);
3003 PUSHs(sv_2mortal(sv));
3008 along = (strend - s) / sizeof(char*);
3014 if (sizeof(char*) > strend - s)
3017 Copy(s, &aptr, 1, char*);
3023 PUSHs(sv_2mortal(sv));
3033 while ((len > 0) && (s < strend)) {
3034 auv = (auv << 7) | (*s & 0x7f);
3035 if (!(*s++ & 0x80)) {
3039 PUSHs(sv_2mortal(sv));
3043 else if (++bytes >= sizeof(UV)) { /* promote to string */
3044 char decn[sizeof(UV) * 3 + 1];
3047 (void) sprintf(decn, "%0*ld",
3048 (int)sizeof(decn) - 1, auv);
3049 sv = newSVpv(decn, 0);
3050 while (s < strend) {
3051 sv = mul128(sv, *s & 0x7f);
3052 if (!(*s++ & 0x80)) {
3061 PUSHs(sv_2mortal(sv));
3066 if ((s >= strend) && bytes)
3067 croak("Unterminated compressed integer");
3072 if (sizeof(char*) > strend - s)
3075 Copy(s, &aptr, 1, char*);
3080 sv_setpvn(sv, aptr, len);
3081 PUSHs(sv_2mortal(sv));
3088 if (s + sizeof(Quad_t) > strend)
3091 Copy(s, &aquad, 1, Quad_t);
3092 s += sizeof(Quad_t);
3095 sv_setiv(sv, (IV)aquad);
3096 PUSHs(sv_2mortal(sv));
3103 if (s + sizeof(unsigned Quad_t) > strend)
3106 Copy(s, &auquad, 1, unsigned Quad_t);
3107 s += sizeof(unsigned Quad_t);
3110 sv_setuv(sv, (UV)auquad);
3111 PUSHs(sv_2mortal(sv));
3115 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3118 along = (strend - s) / sizeof(float);
3123 Copy(s, &afloat, 1, float);
3132 Copy(s, &afloat, 1, float);
3135 sv_setnv(sv, (double)afloat);
3136 PUSHs(sv_2mortal(sv));
3142 along = (strend - s) / sizeof(double);
3147 Copy(s, &adouble, 1, double);
3148 s += sizeof(double);
3156 Copy(s, &adouble, 1, double);
3157 s += sizeof(double);
3159 sv_setnv(sv, (double)adouble);
3160 PUSHs(sv_2mortal(sv));
3165 along = (strend - s) * 3 / 4;
3166 sv = NEWSV(42, along);
3169 while (s < strend && *s > ' ' && *s < 'a') {
3174 len = (*s++ - ' ') & 077;
3176 if (s < strend && *s >= ' ')
3177 a = (*s++ - ' ') & 077;
3180 if (s < strend && *s >= ' ')
3181 b = (*s++ - ' ') & 077;
3184 if (s < strend && *s >= ' ')
3185 c = (*s++ - ' ') & 077;
3188 if (s < strend && *s >= ' ')
3189 d = (*s++ - ' ') & 077;
3192 hunk[0] = a << 2 | b >> 4;
3193 hunk[1] = b << 4 | c >> 2;
3194 hunk[2] = c << 6 | d;
3195 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3200 else if (s[1] == '\n') /* possible checksum byte */
3203 XPUSHs(sv_2mortal(sv));
3208 if (strchr("fFdD", datumtype) ||
3209 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3213 while (checksum >= 16) {
3217 while (checksum >= 4) {
3223 along = (1 << checksum) - 1;
3224 while (cdouble < 0.0)
3226 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3227 sv_setnv(sv, cdouble);
3230 if (checksum < 32) {
3231 along = (1 << checksum) - 1;
3232 culong &= (U32)along;
3234 sv_setnv(sv, (double)culong);
3236 XPUSHs(sv_2mortal(sv));
3240 if (sp == oldsp && GIMME != G_ARRAY)
3246 doencodes(sv, s, len)
3254 sv_catpvn(sv, hunk, 1);
3257 hunk[0] = ' ' + (077 & (*s >> 2));
3258 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3259 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3260 hunk[3] = ' ' + (077 & (s[2] & 077));
3261 sv_catpvn(sv, hunk, 4);
3265 for (s = SvPVX(sv); *s; s++) {
3269 sv_catpvn(sv, "\n", 1);
3277 SV *result = newSVpv("", l);
3278 char *result_c = SvPV(result, na); /* convenience */
3279 char *out = result_c;
3289 SvREFCNT_dec(result);
3312 SvREFCNT_dec(result);
3318 SvCUR_set(result, out - result_c);
3324 SV *pnum; /* must be '\0' terminated */
3328 char *s = SvPV(pnum, len);
3337 i = m * 10 + (*t - '0');
3339 r = (i >> 7); /* r < 10 */
3346 SvCUR_set(pnum, (STRLEN) (t - s));
3353 dSP; dMARK; dORIGMARK; dTARGET;
3354 register SV *cat = TARG;
3357 register char *pat = SvPVx(*++MARK, fromlen);
3358 register char *patend = pat + fromlen;
3363 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3364 static char *space10 = " ";
3366 /* These must not be in registers: */
3375 unsigned Quad_t auquad;
3383 sv_setpvn(cat, "", 0);
3384 while (pat < patend) {
3385 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3388 len = strchr("@Xxu", datumtype) ? 0 : items;
3391 else if (isDIGIT(*pat)) {
3393 while (isDIGIT(*pat))
3394 len = (len * 10) + (*pat++ - '0');
3402 DIE("%% may only be used in unpack");
3413 if (SvCUR(cat) < len)
3414 DIE("X outside of string");
3421 sv_catpvn(cat, null10, 10);
3424 sv_catpvn(cat, null10, len);
3429 aptr = SvPV(fromstr, fromlen);
3433 sv_catpvn(cat, aptr, len);
3435 sv_catpvn(cat, aptr, fromlen);
3437 if (datumtype == 'A') {
3439 sv_catpvn(cat, space10, 10);
3442 sv_catpvn(cat, space10, len);
3446 sv_catpvn(cat, null10, 10);
3449 sv_catpvn(cat, null10, len);
3456 char *savepat = pat;
3461 aptr = SvPV(fromstr, fromlen);
3466 SvCUR(cat) += (len+7)/8;
3467 SvGROW(cat, SvCUR(cat) + 1);
3468 aptr = SvPVX(cat) + aint;
3473 if (datumtype == 'B') {
3474 for (len = 0; len++ < aint;) {
3475 items |= *pat++ & 1;
3479 *aptr++ = items & 0xff;
3485 for (len = 0; len++ < aint;) {
3491 *aptr++ = items & 0xff;
3497 if (datumtype == 'B')
3498 items <<= 7 - (aint & 7);
3500 items >>= 7 - (aint & 7);
3501 *aptr++ = items & 0xff;
3503 pat = SvPVX(cat) + SvCUR(cat);
3514 char *savepat = pat;
3519 aptr = SvPV(fromstr, fromlen);
3524 SvCUR(cat) += (len+1)/2;
3525 SvGROW(cat, SvCUR(cat) + 1);
3526 aptr = SvPVX(cat) + aint;
3531 if (datumtype == 'H') {
3532 for (len = 0; len++ < aint;) {
3534 items |= ((*pat++ & 15) + 9) & 15;
3536 items |= *pat++ & 15;
3540 *aptr++ = items & 0xff;
3546 for (len = 0; len++ < aint;) {
3548 items |= (((*pat++ & 15) + 9) & 15) << 4;
3550 items |= (*pat++ & 15) << 4;
3554 *aptr++ = items & 0xff;
3560 *aptr++ = items & 0xff;
3561 pat = SvPVX(cat) + SvCUR(cat);
3573 aint = SvIV(fromstr);
3575 sv_catpvn(cat, &achar, sizeof(char));
3578 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3583 afloat = (float)SvNV(fromstr);
3584 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3591 adouble = (double)SvNV(fromstr);
3592 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3598 ashort = (I16)SvIV(fromstr);
3600 ashort = htons(ashort);
3602 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3608 ashort = (I16)SvIV(fromstr);
3610 ashort = htovs(ashort);
3612 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3619 ashort = (I16)SvIV(fromstr);
3620 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3626 auint = U_I(SvNV(fromstr));
3627 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3633 adouble = floor(SvNV(fromstr));
3636 croak("Cannot compress negative numbers");
3638 if (adouble <= UV_MAX) {
3639 char buf[1 + sizeof(UV)];
3640 char *in = buf + sizeof(buf);
3641 UV auv = U_V(adouble);;
3644 *--in = (auv & 0x7f) | 0x80;
3647 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3648 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3650 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3651 char *from, *result, *in;
3656 /* Copy string and check for compliance */
3657 from = SvPV(fromstr, len);
3658 if ((norm = is_an_int(from, len)) == NULL)
3659 croak("can compress only unsigned integer");
3661 New('w', result, len, char);
3665 *--in = div128(norm, &done) | 0x80;
3666 result[len - 1] &= 0x7F; /* clear continue bit */
3667 sv_catpvn(cat, in, (result + len) - in);
3669 SvREFCNT_dec(norm); /* free norm */
3671 else if (SvNOKp(fromstr)) {
3672 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3673 char *in = buf + sizeof(buf);
3676 double next = floor(adouble / 128);
3677 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3678 if (--in < buf) /* this cannot happen ;-) */
3679 croak ("Cannot compress integer");
3681 } while (adouble > 0);
3682 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3683 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3686 croak("Cannot compress non integer");
3692 aint = SvIV(fromstr);
3693 sv_catpvn(cat, (char*)&aint, sizeof(int));
3699 aulong = U_L(SvNV(fromstr));
3701 aulong = htonl(aulong);
3703 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3709 aulong = U_L(SvNV(fromstr));
3711 aulong = htovl(aulong);
3713 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3719 aulong = U_L(SvNV(fromstr));
3720 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3726 along = SvIV(fromstr);
3727 sv_catpvn(cat, (char*)&along, sizeof(I32));
3734 auquad = (unsigned Quad_t)SvIV(fromstr);
3735 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3741 aquad = (Quad_t)SvIV(fromstr);
3742 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3745 #endif /* HAS_QUAD */
3747 len = 1; /* assume SV is correct length */
3752 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3753 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3758 aptr = SvPV(fromstr, fromlen);
3759 SvGROW(cat, fromlen * 4 / 3);
3764 while (fromlen > 0) {
3771 doencodes(cat, aptr, todo);
3789 register I32 limit = POPi; /* note, negative is forever */
3792 register char *s = SvPV(sv, len);
3793 char *strend = s + len;
3795 register REGEXP *rx;
3799 I32 maxiters = (strend - s) + 10;
3802 I32 origlimit = limit;
3805 AV *oldstack = curstack;
3807 I32 oldsave = savestack_ix;
3810 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3815 DIE("panic: do_split");
3816 rx = pm->op_pmregexp;
3818 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3819 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3821 if (pm->op_pmreplroot)
3822 ary = GvAVn((GV*)pm->op_pmreplroot);
3823 else if (gimme != G_ARRAY)
3827 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3831 for (i = AvFILL(ary); i >= 0; i--)
3832 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3836 /* temporarily switch stacks */
3837 SWITCHSTACK(curstack, ary);
3839 base = SP - stack_base;
3841 if (pm->op_pmflags & PMf_SKIPWHITE) {
3842 if (pm->op_pmflags & PMf_LOCALE) {
3843 while (isSPACE_LC(*s))
3851 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3853 multiline = pm->op_pmflags & PMf_MULTILINE;
3857 limit = maxiters + 2;
3858 if (pm->op_pmflags & PMf_WHITE) {
3861 while (m < strend &&
3862 !((pm->op_pmflags & PMf_LOCALE)
3863 ? isSPACE_LC(*m) : isSPACE(*m)))
3868 dstr = NEWSV(30, m-s);
3869 sv_setpvn(dstr, s, m-s);
3875 while (s < strend &&
3876 ((pm->op_pmflags & PMf_LOCALE)
3877 ? isSPACE_LC(*s) : isSPACE(*s)))
3881 else if (strEQ("^", rx->precomp)) {
3884 for (m = s; m < strend && *m != '\n'; m++) ;
3888 dstr = NEWSV(30, m-s);
3889 sv_setpvn(dstr, s, m-s);
3896 else if (pm->op_pmshort && !rx->nparens) {
3897 i = SvCUR(pm->op_pmshort);
3899 i = *SvPVX(pm->op_pmshort);
3902 for (m = s; m < strend && *m != i; m++) ;
3905 dstr = NEWSV(30, m-s);
3906 sv_setpvn(dstr, s, m-s);
3915 while (s < strend && --limit &&
3916 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3920 dstr = NEWSV(31, m-s);
3921 sv_setpvn(dstr, s, m-s);
3930 maxiters += (strend - s) * rx->nparens;
3931 while (s < strend && --limit &&
3932 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3934 TAINT_IF(rx->exec_tainted);
3936 && rx->subbase != orig) {
3941 strend = s + (strend - m);
3944 dstr = NEWSV(32, m-s);
3945 sv_setpvn(dstr, s, m-s);
3950 for (i = 1; i <= rx->nparens; i++) {
3954 dstr = NEWSV(33, m-s);
3955 sv_setpvn(dstr, s, m-s);
3958 dstr = NEWSV(33, 0);
3967 LEAVE_SCOPE(oldsave);
3968 iters = (SP - stack_base) - base;
3969 if (iters > maxiters)
3972 /* keep field after final delim? */
3973 if (s < strend || (iters && origlimit)) {
3974 dstr = NEWSV(34, strend-s);
3975 sv_setpvn(dstr, s, strend-s);
3981 else if (!origlimit) {
3982 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3986 SWITCHSTACK(ary, oldstack);
3987 if (gimme == G_ARRAY) {
3989 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3995 if (gimme == G_ARRAY)
3998 if (iters || !pm->op_pmreplroot) {