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_V == G_SCALAR)
58 if (op->op_private & OPpLVAL_INTRO)
59 SAVECLEARSV(curpad[op->op_targ]);
61 if (op->op_flags & OPf_REF) {
65 if (GIMME == G_ARRAY) {
66 I32 maxarg = AvFILL((AV*)TARG) + 1;
68 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
72 SV* sv = sv_newmortal();
73 I32 maxarg = AvFILL((AV*)TARG) + 1;
86 if (op->op_private & OPpLVAL_INTRO)
87 SAVECLEARSV(curpad[op->op_targ]);
88 if (op->op_flags & OPf_REF)
91 if (gimme == G_ARRAY) {
92 RETURNOP(do_kv(ARGS));
94 else if (gimme == G_SCALAR) {
95 SV* sv = sv_newmortal();
96 if (HvFILL((HV*)TARG)) {
97 sprintf(buf, "%ld/%ld",
98 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG)+1);
110 DIE("NOT IMPL LINE %d",__LINE__);
122 if (SvTYPE(sv) == SVt_PVIO) {
123 GV *gv = (GV*) sv_newmortal();
124 gv_init(gv, 0, "", 0, 0);
125 GvIOp(gv) = (IO *)sv;
128 } else if (SvTYPE(sv) != SVt_PVGV)
129 DIE("Not a GLOB reference");
132 if (SvTYPE(sv) != SVt_PVGV) {
135 if (SvGMAGICAL(sv)) {
141 if (op->op_flags & OPf_REF ||
142 op->op_private & HINT_STRICT_REFS)
143 DIE(no_usym, "a symbol");
149 if (op->op_private & HINT_STRICT_REFS)
150 DIE(no_symref, sym, "a symbol");
151 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
154 if (op->op_private & OPpLVAL_INTRO)
155 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
167 switch (SvTYPE(sv)) {
171 DIE("Not a SCALAR reference");
178 if (SvTYPE(gv) != SVt_PVGV) {
179 if (SvGMAGICAL(sv)) {
185 if (op->op_flags & OPf_REF ||
186 op->op_private & HINT_STRICT_REFS)
187 DIE(no_usym, "a SCALAR");
193 if (op->op_private & HINT_STRICT_REFS)
194 DIE(no_symref, sym, "a SCALAR");
195 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
199 if (op->op_flags & OPf_MOD) {
200 if (op->op_private & OPpLVAL_INTRO)
201 sv = save_scalar((GV*)TOPs);
202 else if (op->op_private & OPpDEREF)
203 vivify_ref(sv, op->op_private & OPpDEREF);
213 SV *sv = AvARYLEN(av);
215 AvARYLEN(av) = sv = NEWSV(0,0);
216 sv_upgrade(sv, SVt_IV);
217 sv_magic(sv, (SV*)av, '#', Nullch, 0);
225 dSP; dTARGET; dPOPss;
227 if (op->op_flags & OPf_MOD) {
228 if (SvTYPE(TARG) < SVt_PVLV) {
229 sv_upgrade(TARG, SVt_PVLV);
230 sv_magic(TARG, Nullsv, '.', Nullch, 0);
235 PUSHs(TARG); /* no SvSETMAGIC */
241 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
242 mg = mg_find(sv, 'g');
243 if (mg && mg->mg_len >= 0) {
244 PUSHi(mg->mg_len + curcop->cop_arybase);
258 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
259 /* (But not in defined().) */
260 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
263 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
280 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
282 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
290 CV* cv = (CV*)curpad[op->op_targ];
292 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
308 if (GIMME != G_ARRAY) {
312 EXTEND_MORTAL(SP - MARK);
314 *MARK = refto(*MARK);
324 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
327 if (!(sv = LvTARG(sv)))
330 else if (SvPADTMP(sv))
334 (void)SvREFCNT_inc(sv);
337 sv_upgrade(rv, SVt_RV);
351 if (sv && SvGMAGICAL(sv))
354 if (!sv || !SvROK(sv))
358 pv = sv_reftype(sv,TRUE);
359 PUSHp(pv, strlen(pv));
369 stash = curcop->cop_stash;
371 stash = gv_stashsv(POPs, TRUE);
373 (void)sv_bless(TOPs, stash);
377 /* Pattern matching */
382 register unsigned char *s;
385 register I32 *sfirst;
389 if (sv == lastscream) {
395 SvSCREAM_off(lastscream);
396 SvREFCNT_dec(lastscream);
398 lastscream = SvREFCNT_inc(sv);
401 s = (unsigned char*)(SvPV(sv, len));
405 if (pos > maxscream) {
407 maxscream = pos + 80;
408 New(301, screamfirst, 256, I32);
409 New(302, screamnext, maxscream, I32);
412 maxscream = pos + pos / 4;
413 Renew(screamnext, maxscream, I32);
417 sfirst = screamfirst;
420 if (!sfirst || !snext)
421 DIE("do_study: out of memory");
423 for (ch = 256; ch; --ch)
430 snext[pos] = sfirst[ch] - pos;
437 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
446 if (op->op_flags & OPf_STACKED)
452 TARG = sv_newmortal();
453 PUSHi(do_trans(sv, op));
457 /* Lvalue operators. */
479 SETi(do_chomp(TOPs));
486 register I32 count = 0;
489 count += do_chomp(POPs);
500 if (!sv || !SvANY(sv))
502 switch (SvTYPE(sv)) {
504 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
508 if (HvARRAY(sv) || SvRMAGICAL(sv))
512 if (CvROOT(sv) || CvXSUB(sv))
529 if (!op->op_private) {
538 if (SvTHINKFIRST(sv)) {
545 switch (SvTYPE(sv)) {
555 if (cv_const_sv((CV*)sv))
556 warn("Constant subroutine %s undefined",
557 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
560 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
562 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
566 sv_setsv(sv, &sv_undef);
569 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
572 SvPV_set(sv, Nullch);
585 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
587 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
588 SvIVX(TOPs) != IV_MIN)
591 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
602 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
604 sv_setsv(TARG, TOPs);
605 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
606 SvIVX(TOPs) != IV_MAX)
609 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
623 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
625 sv_setsv(TARG, TOPs);
626 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
627 SvIVX(TOPs) != IV_MIN)
630 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
639 /* Ordinary operators. */
643 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
646 SETn( pow( left, right) );
653 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
656 SETn( left * right );
663 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
668 DIE("Illegal division by zero");
670 /* insure that 20./5. == 4. */
673 if ((double)I_V(left) == left &&
674 (double)I_V(right) == right &&
675 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
678 value = left / right;
682 value = left / right;
691 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
699 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
701 right = (right_neg = (i < 0)) ? -i : i;
705 right = U_V((right_neg = (n < 0)) ? -n : n);
708 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
710 left = (left_neg = (i < 0)) ? -i : i;
714 left = U_V((left_neg = (n < 0)) ? -n : n);
718 DIE("Illegal modulus zero");
721 if ((left_neg != right_neg) && ans)
724 if (ans <= -(UV)IV_MAX)
725 sv_setiv(TARG, (IV) -ans);
727 sv_setnv(TARG, -(double)ans);
738 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
740 register I32 count = POPi;
741 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
743 I32 items = SP - MARK;
755 repeatcpy((char*)(MARK + items), (char*)MARK,
756 items * sizeof(SV*), count - 1);
762 else { /* Note: mark already snarfed by pp_list */
767 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
768 if (SvREADONLY(tmpstr) && curcop != &compiling)
769 DIE("Can't x= to readonly value");
773 SvSetSV(TARG, tmpstr);
774 SvPV_force(TARG, len);
779 SvGROW(TARG, (count * len) + 1);
780 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
781 SvCUR(TARG) *= count;
785 (void)SvPOK_only(TARG);
794 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
797 SETn( left - right );
804 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
807 if (op->op_private & HINT_INTEGER) {
821 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
824 if (op->op_private & HINT_INTEGER) {
838 dSP; tryAMAGICbinSET(lt,0);
841 SETs(boolSV(TOPn < value));
848 dSP; tryAMAGICbinSET(gt,0);
851 SETs(boolSV(TOPn > value));
858 dSP; tryAMAGICbinSET(le,0);
861 SETs(boolSV(TOPn <= value));
868 dSP; tryAMAGICbinSET(ge,0);
871 SETs(boolSV(TOPn >= value));
878 dSP; tryAMAGICbinSET(ne,0);
881 SETs(boolSV(TOPn != value));
888 dSP; dTARGET; tryAMAGICbin(ncmp,0);
895 else if (left < right)
897 else if (left > right)
910 dSP; tryAMAGICbinSET(slt,0);
913 int cmp = ((op->op_private & OPpLOCALE)
914 ? sv_cmp_locale(left, right)
915 : sv_cmp(left, right));
916 SETs(boolSV(cmp < 0));
923 dSP; tryAMAGICbinSET(sgt,0);
926 int cmp = ((op->op_private & OPpLOCALE)
927 ? sv_cmp_locale(left, right)
928 : sv_cmp(left, right));
929 SETs(boolSV(cmp > 0));
936 dSP; tryAMAGICbinSET(sle,0);
939 int cmp = ((op->op_private & OPpLOCALE)
940 ? sv_cmp_locale(left, right)
941 : sv_cmp(left, right));
942 SETs(boolSV(cmp <= 0));
949 dSP; tryAMAGICbinSET(sge,0);
952 int cmp = ((op->op_private & OPpLOCALE)
953 ? sv_cmp_locale(left, right)
954 : sv_cmp(left, right));
955 SETs(boolSV(cmp >= 0));
962 dSP; tryAMAGICbinSET(seq,0);
965 SETs(boolSV(sv_eq(left, right)));
972 dSP; tryAMAGICbinSET(sne,0);
975 SETs(boolSV(!sv_eq(left, right)));
982 dSP; dTARGET; tryAMAGICbin(scmp,0);
985 int cmp = ((op->op_private & OPpLOCALE)
986 ? sv_cmp_locale(left, right)
987 : sv_cmp(left, right));
995 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
998 if (SvNIOKp(left) || SvNIOKp(right)) {
999 if (op->op_private & HINT_INTEGER) {
1000 IBW value = SvIV(left) & SvIV(right);
1004 UBW value = SvUV(left) & SvUV(right);
1009 do_vop(op->op_type, TARG, left, right);
1018 dSP; dATARGET; tryAMAGICbin(bxor,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; dATARGET; tryAMAGICbin(bor,opASSIGN);
1044 if (SvNIOKp(left) || SvNIOKp(right)) {
1045 if (op->op_private & HINT_INTEGER) {
1046 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1050 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1055 do_vop(op->op_type, TARG, left, right);
1064 dSP; dTARGET; tryAMAGICun(neg);
1069 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1071 else if (SvNIOKp(sv))
1073 else if (SvPOKp(sv)) {
1075 char *s = SvPV(sv, len);
1076 if (isIDFIRST(*s)) {
1077 sv_setpvn(TARG, "-", 1);
1080 else if (*s == '+' || *s == '-') {
1082 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1085 sv_setnv(TARG, -SvNV(sv));
1097 dSP; tryAMAGICunSET(not);
1098 #endif /* OVERLOAD */
1099 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1105 dSP; dTARGET; tryAMAGICun(compl);
1109 if (op->op_private & HINT_INTEGER) {
1110 IBW value = ~SvIV(sv);
1114 UBW value = ~SvUV(sv);
1119 register char *tmps;
1120 register long *tmpl;
1125 tmps = SvPV_force(TARG, len);
1128 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1131 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1135 for ( ; anum > 0; anum--, tmps++)
1144 /* integer versions of some of the above */
1148 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1151 SETi( left * right );
1158 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1162 DIE("Illegal division by zero");
1163 value = POPi / value;
1171 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1175 DIE("Illegal modulus zero");
1176 SETi( left % right );
1183 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1186 SETi( left + right );
1193 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1196 SETi( left - right );
1203 dSP; tryAMAGICbinSET(lt,0);
1206 SETs(boolSV(left < right));
1213 dSP; tryAMAGICbinSET(gt,0);
1216 SETs(boolSV(left > right));
1223 dSP; tryAMAGICbinSET(le,0);
1226 SETs(boolSV(left <= right));
1233 dSP; tryAMAGICbinSET(ge,0);
1236 SETs(boolSV(left >= right));
1243 dSP; tryAMAGICbinSET(eq,0);
1246 SETs(boolSV(left == right));
1253 dSP; tryAMAGICbinSET(ne,0);
1256 SETs(boolSV(left != right));
1263 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1270 else if (left < right)
1281 dSP; dTARGET; tryAMAGICun(neg);
1286 /* High falutin' math. */
1290 dSP; dTARGET; tryAMAGICbin(atan2,0);
1293 SETn(atan2(left, right));
1300 dSP; dTARGET; tryAMAGICun(sin);
1312 dSP; dTARGET; tryAMAGICun(cos);
1332 if (!srand_called) {
1333 (void)srand((unsigned)seed());
1334 srand_called = TRUE;
1337 value = rand() * value / 2147483648.0;
1340 value = rand() * value / 65536.0;
1343 value = rand() * value / 32768.0;
1345 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1361 (void)srand((unsigned)anum);
1362 srand_called = TRUE;
1371 * This is really just a quick hack which grabs various garbage
1372 * values. It really should be a real hash algorithm which
1373 * spreads the effect of every input bit onto every output bit,
1374 * if someone who knows about such tings would bother to write it.
1375 * Might be a good idea to add that function to CORE as well.
1376 * No numbers below come from careful analysis or anyting here,
1377 * except they are primes and SEED_C1 > 1E6 to get a full-width
1378 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1379 * probably be bigger too.
1382 # define SEED_C1 1000003
1383 #define SEED_C4 73819
1385 # define SEED_C1 25747
1386 #define SEED_C4 20639
1390 #define SEED_C5 26107
1394 # include <starlet.h>
1395 unsigned int when[2];
1396 _ckvmssts(sys$gettim(when));
1397 /* Please tell us: Which value is seconds and what is the other here? */
1398 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1400 # ifdef HAS_GETTIMEOFDAY
1401 struct timeval when;
1402 gettimeofday(&when,(struct timezone *) 0);
1403 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1407 u = (U32)SEED_C1 * when;
1410 u += SEED_C3 * (U32)getpid();
1411 u += SEED_C4 * (U32)(UV)stack_sp;
1412 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1413 u += SEED_C5 * (U32)(UV)&when;
1420 dSP; dTARGET; tryAMAGICun(exp);
1432 dSP; dTARGET; tryAMAGICun(log);
1437 SET_NUMERIC_STANDARD();
1438 DIE("Can't take log of %g", value);
1448 dSP; dTARGET; tryAMAGICun(sqrt);
1453 SET_NUMERIC_STANDARD();
1454 DIE("Can't take sqrt of %g", value);
1456 value = sqrt(value);
1466 double value = TOPn;
1469 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1475 (void)modf(value, &value);
1477 (void)modf(-value, &value);
1492 dSP; dTARGET; tryAMAGICun(abs);
1494 double value = TOPn;
1497 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1498 (iv = SvIVX(TOPs)) != IV_MIN) {
1519 XPUSHu(scan_hex(tmps, 99, &argtype));
1531 while (*tmps && isSPACE(*tmps))
1536 value = scan_hex(++tmps, 99, &argtype);
1538 value = scan_oct(tmps, 99, &argtype);
1548 SETi( sv_len(TOPs) );
1560 I32 lvalue = op->op_flags & OPf_MOD;
1562 I32 arybase = curcop->cop_arybase;
1566 pos = POPi - arybase;
1568 tmps = SvPV(sv, curlen);
1570 pos += curlen + arybase;
1571 if (pos < 0 && MAXARG < 3)
1574 if (pos < 0 || pos > curlen) {
1575 if (dowarn || lvalue)
1576 warn("substr outside of string");
1583 len += curlen - pos;
1588 rem = curlen - pos; /* rem=how many bytes left*/
1591 sv_setpvn(TARG, tmps, rem);
1592 if (lvalue) { /* it's an lvalue! */
1593 if (!SvGMAGICAL(sv)) {
1597 warn("Attempt to use reference as lvalue in substr");
1599 if (SvOK(sv)) /* is it defined ? */
1600 (void)SvPOK_only(sv);
1602 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1605 if (SvTYPE(TARG) < SVt_PVLV) {
1606 sv_upgrade(TARG, SVt_PVLV);
1607 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1612 LvTARGOFF(TARG) = pos;
1613 LvTARGLEN(TARG) = rem;
1616 PUSHs(TARG); /* avoid SvSETMAGIC here */
1623 register I32 size = POPi;
1624 register I32 offset = POPi;
1625 register SV *src = POPs;
1626 I32 lvalue = op->op_flags & OPf_MOD;
1628 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1629 unsigned long retnum;
1632 offset *= size; /* turn into bit offset */
1633 len = (offset + size + 7) / 8;
1634 if (offset < 0 || size < 1)
1637 if (lvalue) { /* it's an lvalue! */
1638 if (SvTYPE(TARG) < SVt_PVLV) {
1639 sv_upgrade(TARG, SVt_PVLV);
1640 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1645 LvTARGOFF(TARG) = offset;
1646 LvTARGLEN(TARG) = size;
1654 if (offset >= srclen)
1657 retnum = (unsigned long) s[offset] << 8;
1659 else if (size == 32) {
1660 if (offset >= srclen)
1662 else if (offset + 1 >= srclen)
1663 retnum = (unsigned long) s[offset] << 24;
1664 else if (offset + 2 >= srclen)
1665 retnum = ((unsigned long) s[offset] << 24) +
1666 ((unsigned long) s[offset + 1] << 16);
1668 retnum = ((unsigned long) s[offset] << 24) +
1669 ((unsigned long) s[offset + 1] << 16) +
1670 (s[offset + 2] << 8);
1675 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1680 else if (size == 16)
1681 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1682 else if (size == 32)
1683 retnum = ((unsigned long) s[offset] << 24) +
1684 ((unsigned long) s[offset + 1] << 16) +
1685 (s[offset + 2] << 8) + s[offset+3];
1689 sv_setiv(TARG, (IV)retnum);
1704 I32 arybase = curcop->cop_arybase;
1709 offset = POPi - arybase;
1712 tmps = SvPV(big, biglen);
1715 else if (offset > biglen)
1717 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1718 (unsigned char*)tmps + biglen, little)))
1719 retval = -1 + arybase;
1721 retval = tmps2 - tmps + arybase;
1738 I32 arybase = curcop->cop_arybase;
1744 tmps2 = SvPV(little, llen);
1745 tmps = SvPV(big, blen);
1749 offset = SvIV(offstr) - arybase + llen;
1752 else if (offset > blen)
1754 if (!(tmps2 = rninstr(tmps, tmps + offset,
1755 tmps2, tmps2 + llen)))
1756 retval = -1 + arybase;
1758 retval = tmps2 - tmps + arybase;
1765 dSP; dMARK; dORIGMARK; dTARGET;
1766 #ifdef USE_LOCALE_NUMERIC
1767 if (op->op_private & OPpLOCALE)
1768 SET_NUMERIC_LOCAL();
1770 SET_NUMERIC_STANDARD();
1772 do_sprintf(TARG, SP-MARK, MARK+1);
1773 TAINT_IF(SvTAINTED(TARG));
1787 value = (I32) (*tmps & 255);
1792 value = (I32) (anum & 255);
1803 (void)SvUPGRADE(TARG,SVt_PV);
1809 (void)SvPOK_only(TARG);
1816 dSP; dTARGET; dPOPTOPssrl;
1818 char *tmps = SvPV(left, na);
1820 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1822 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1826 "The crypt() function is unimplemented due to excessive paranoia.");
1838 if (!SvPADTMP(sv)) {
1844 s = SvPV_force(sv, na);
1846 if (op->op_private & OPpLOCALE) {
1849 *s = toUPPER_LC(*s);
1864 if (!SvPADTMP(sv)) {
1870 s = SvPV_force(sv, na);
1872 if (op->op_private & OPpLOCALE) {
1875 *s = toLOWER_LC(*s);
1892 if (!SvPADTMP(sv)) {
1899 s = SvPV_force(sv, len);
1901 register char *send = s + len;
1903 if (op->op_private & OPpLOCALE) {
1906 for (; s < send; s++)
1907 *s = toUPPER_LC(*s);
1910 for (; s < send; s++)
1924 if (!SvPADTMP(sv)) {
1931 s = SvPV_force(sv, len);
1933 register char *send = s + len;
1935 if (op->op_private & OPpLOCALE) {
1938 for (; s < send; s++)
1939 *s = toLOWER_LC(*s);
1942 for (; s < send; s++)
1954 register char *s = SvPV(sv,len);
1958 (void)SvUPGRADE(TARG, SVt_PV);
1959 SvGROW(TARG, (len * 2) + 1);
1967 SvCUR_set(TARG, d - SvPVX(TARG));
1968 (void)SvPOK_only(TARG);
1971 sv_setpvn(TARG, s, len);
1980 dSP; dMARK; dORIGMARK;
1982 register AV* av = (AV*)POPs;
1983 register I32 lval = op->op_flags & OPf_MOD;
1984 I32 arybase = curcop->cop_arybase;
1987 if (SvTYPE(av) == SVt_PVAV) {
1988 if (lval && op->op_private & OPpLVAL_INTRO) {
1990 for (svp = mark + 1; svp <= sp; svp++) {
1995 if (max > AvMAX(av))
1998 while (++MARK <= SP) {
1999 elem = SvIVx(*MARK);
2003 svp = av_fetch(av, elem, lval);
2005 if (!svp || *svp == &sv_undef)
2006 DIE(no_aelem, elem);
2007 if (op->op_private & OPpLVAL_INTRO)
2010 *MARK = svp ? *svp : &sv_undef;
2013 if (GIMME != G_ARRAY) {
2021 /* Associative arrays. */
2026 HV *hash = (HV*)POPs;
2028 I32 gimme = GIMME_V;
2031 entry = hv_iternext(hash); /* might clobber stack_sp */
2036 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2037 if (gimme == G_ARRAY) {
2039 sv_setsv(TARG, hv_iterval(hash, entry)); /* might hit stack_sp */
2044 else if (gimme == G_SCALAR)
2063 I32 gimme = GIMME_V;
2064 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2068 if (op->op_private & OPpSLICE) {
2071 if (SvTYPE(hv) != SVt_PVHV)
2072 DIE("Not a HASH reference");
2073 while (++MARK <= SP) {
2074 sv = hv_delete_ent(hv, *MARK, discard, 0);
2075 *MARK = sv ? sv : &sv_undef;
2079 else if (gimme == G_SCALAR) {
2088 if (SvTYPE(hv) != SVt_PVHV)
2089 DIE("Not a HASH reference");
2090 sv = hv_delete_ent(hv, keysv, discard, 0);
2105 if (SvTYPE(hv) != SVt_PVHV) {
2106 DIE("Not a HASH reference");
2108 if (hv_exists_ent(hv, tmpsv, 0))
2115 dSP; dMARK; dORIGMARK;
2117 register HV *hv = (HV*)POPs;
2118 register I32 lval = op->op_flags & OPf_MOD;
2120 if (SvTYPE(hv) == SVt_PVHV) {
2121 while (++MARK <= SP) {
2124 he = hv_fetch_ent(hv, keysv, lval, 0);
2126 if (!he || HeVAL(he) == &sv_undef)
2127 DIE(no_helem, SvPV(keysv, na));
2128 if (op->op_private & OPpLVAL_INTRO)
2129 save_svref(&HeVAL(he));
2131 *MARK = he ? HeVAL(he) : &sv_undef;
2134 if (GIMME != G_ARRAY) {
2142 /* List operators. */
2147 if (GIMME != G_ARRAY) {
2149 *MARK = *SP; /* unwanted list, return last item */
2160 SV **lastrelem = stack_sp;
2161 SV **lastlelem = stack_base + POPMARK;
2162 SV **firstlelem = stack_base + POPMARK + 1;
2163 register SV **firstrelem = lastlelem + 1;
2164 I32 arybase = curcop->cop_arybase;
2165 I32 lval = op->op_flags & OPf_MOD;
2166 I32 is_something_there = lval;
2168 register I32 max = lastrelem - lastlelem;
2169 register SV **lelem;
2172 if (GIMME != G_ARRAY) {
2173 ix = SvIVx(*lastlelem);
2178 if (ix < 0 || ix >= max)
2179 *firstlelem = &sv_undef;
2181 *firstlelem = firstrelem[ix];
2187 SP = firstlelem - 1;
2191 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2197 else if (!(*lelem = firstrelem[ix]))
2202 if (ix >= max || !(*lelem = firstrelem[ix]))
2205 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2206 is_something_there = TRUE;
2208 if (is_something_there)
2211 SP = firstlelem - 1;
2217 dSP; dMARK; dORIGMARK;
2218 I32 items = SP - MARK;
2219 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2220 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2227 dSP; dMARK; dORIGMARK;
2228 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2232 SV *val = NEWSV(46, 0);
2234 sv_setsv(val, *++MARK);
2236 warn("Odd number of elements in hash list");
2237 (void)hv_store_ent(hv,key,val,0);
2246 dSP; dMARK; dORIGMARK;
2247 register AV *ary = (AV*)*++MARK;
2251 register I32 offset;
2252 register I32 length;
2261 offset = SvIVx(*MARK);
2263 offset += AvFILL(ary) + 1;
2265 offset -= curcop->cop_arybase;
2267 length = SvIVx(*MARK++);
2272 length = AvMAX(ary) + 1; /* close enough to infinity */
2276 length = AvMAX(ary) + 1;
2284 if (offset > AvFILL(ary) + 1)
2285 offset = AvFILL(ary) + 1;
2286 after = AvFILL(ary) + 1 - (offset + length);
2287 if (after < 0) { /* not that much array */
2288 length += after; /* offset+length now in array */
2294 /* At this point, MARK .. SP-1 is our new LIST */
2297 diff = newlen - length;
2299 if (diff < 0) { /* shrinking the area */
2301 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2302 Copy(MARK, tmparyval, newlen, SV*);
2305 MARK = ORIGMARK + 1;
2306 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2307 MEXTEND(MARK, length);
2308 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2310 EXTEND_MORTAL(length);
2311 for (i = length, dst = MARK; i; i--) {
2312 if (!SvIMMORTAL(*dst))
2313 sv_2mortal(*dst); /* free them eventualy */
2320 *MARK = AvARRAY(ary)[offset+length-1];
2322 if (!SvIMMORTAL(*MARK))
2324 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2325 SvREFCNT_dec(*dst++); /* free them now */
2328 AvFILL(ary) += diff;
2330 /* pull up or down? */
2332 if (offset < after) { /* easier to pull up */
2333 if (offset) { /* esp. if nothing to pull */
2334 src = &AvARRAY(ary)[offset-1];
2335 dst = src - diff; /* diff is negative */
2336 for (i = offset; i > 0; i--) /* can't trust Copy */
2340 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2344 if (after) { /* anything to pull down? */
2345 src = AvARRAY(ary) + offset + length;
2346 dst = src + diff; /* diff is negative */
2347 Move(src, dst, after, SV*);
2349 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2350 /* avoid later double free */
2354 dst[--i] = &sv_undef;
2357 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2359 *dst = NEWSV(46, 0);
2360 sv_setsv(*dst++, *src++);
2362 Safefree(tmparyval);
2365 else { /* no, expanding (or same) */
2367 New(452, tmparyval, length, SV*); /* so remember deletion */
2368 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2371 if (diff > 0) { /* expanding */
2373 /* push up or down? */
2375 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2379 Move(src, dst, offset, SV*);
2381 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2383 AvFILL(ary) += diff;
2386 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2387 av_extend(ary, AvFILL(ary) + diff);
2388 AvFILL(ary) += diff;
2391 dst = AvARRAY(ary) + AvFILL(ary);
2393 for (i = after; i; i--) {
2400 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2401 *dst = NEWSV(46, 0);
2402 sv_setsv(*dst++, *src++);
2404 MARK = ORIGMARK + 1;
2405 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2407 Copy(tmparyval, MARK, length, SV*);
2409 EXTEND_MORTAL(length);
2410 for (i = length, dst = MARK; i; i--) {
2411 if (!SvIMMORTAL(*dst))
2412 sv_2mortal(*dst); /* free them eventualy */
2416 Safefree(tmparyval);
2420 else if (length--) {
2421 *MARK = tmparyval[length];
2423 if (!SvIMMORTAL(*MARK))
2425 while (length-- > 0)
2426 SvREFCNT_dec(tmparyval[length]);
2428 Safefree(tmparyval);
2439 dSP; dMARK; dORIGMARK; dTARGET;
2440 register AV *ary = (AV*)*++MARK;
2441 register SV *sv = &sv_undef;
2443 for (++MARK; MARK <= SP; MARK++) {
2446 sv_setsv(sv, *MARK);
2450 PUSHi( AvFILL(ary) + 1 );
2458 SV *sv = av_pop(av);
2459 if (!SvIMMORTAL(sv) && AvREAL(av))
2460 (void)sv_2mortal(sv);
2469 SV *sv = av_shift(av);
2473 if (!SvIMMORTAL(sv) && AvREAL(av))
2474 (void)sv_2mortal(sv);
2481 dSP; dMARK; dORIGMARK; dTARGET;
2482 register AV *ary = (AV*)*++MARK;
2486 av_unshift(ary, SP - MARK);
2489 sv_setsv(sv, *++MARK);
2490 (void)av_store(ary, i++, sv);
2494 PUSHi( AvFILL(ary) + 1 );
2504 if (GIMME == G_ARRAY) {
2515 register char *down;
2521 do_join(TARG, &sv_no, MARK, SP);
2523 sv_setsv(TARG, (SP > MARK) ? *SP : GvSV(defgv));
2524 up = SvPV_force(TARG, len);
2526 down = SvPVX(TARG) + len - 1;
2532 (void)SvPOK_only(TARG);
2546 char *s = SvPV(sv, len);
2550 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2551 SV *new = newSVpv("0000000000", 10);
2554 SvREFCNT_dec(sv); /* free old sv */
2559 while (!*t) /* trailing '\0'? */
2562 i = ((*t - '0') << 7) + m;
2563 *(t--) = '0' + (i % 10);
2569 /* Explosives and implosives. */
2576 I32 gimme = GIMME_V;
2580 register char *pat = SvPV(left, llen);
2581 register char *s = SvPV(right, rlen);
2582 char *strend = s + rlen;
2584 register char *patend = pat + llen;
2589 /* These must not be in registers: */
2600 unsigned Quad_t auquad;
2606 register U32 culong;
2608 static char* bitcount = 0;
2610 if (gimme != G_ARRAY) { /* arrange to do first one only */
2612 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2613 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2615 while (isDIGIT(*patend) || *patend == '*')
2621 while (pat < patend) {
2626 else if (*pat == '*') {
2627 len = strend - strbeg; /* long enough */
2630 else if (isDIGIT(*pat)) {
2632 while (isDIGIT(*pat))
2633 len = (len * 10) + (*pat++ - '0');
2636 len = (datumtype != '@');
2641 if (len == 1 && pat[-1] != '1')
2650 if (len > strend - strbeg)
2651 DIE("@ outside of string");
2655 if (len > s - strbeg)
2656 DIE("X outside of string");
2660 if (len > strend - s)
2661 DIE("x outside of string");
2666 if (len > strend - s)
2669 goto uchar_checksum;
2670 sv = NEWSV(35, len);
2671 sv_setpvn(sv, s, len);
2673 if (datumtype == 'A') {
2674 aptr = s; /* borrow register */
2675 s = SvPVX(sv) + len - 1;
2676 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2679 SvCUR_set(sv, s - SvPVX(sv));
2680 s = aptr; /* unborrow register */
2682 XPUSHs(sv_2mortal(sv));
2686 if (pat[-1] == '*' || len > (strend - s) * 8)
2687 len = (strend - s) * 8;
2690 Newz(601, bitcount, 256, char);
2691 for (bits = 1; bits < 256; bits++) {
2692 if (bits & 1) bitcount[bits]++;
2693 if (bits & 2) bitcount[bits]++;
2694 if (bits & 4) bitcount[bits]++;
2695 if (bits & 8) bitcount[bits]++;
2696 if (bits & 16) bitcount[bits]++;
2697 if (bits & 32) bitcount[bits]++;
2698 if (bits & 64) bitcount[bits]++;
2699 if (bits & 128) bitcount[bits]++;
2703 culong += bitcount[*(unsigned char*)s++];
2708 if (datumtype == 'b') {
2710 if (bits & 1) culong++;
2716 if (bits & 128) culong++;
2723 sv = NEWSV(35, len + 1);
2726 aptr = pat; /* borrow register */
2728 if (datumtype == 'b') {
2730 for (len = 0; len < aint; len++) {
2731 if (len & 7) /*SUPPRESS 595*/
2735 *pat++ = '0' + (bits & 1);
2740 for (len = 0; len < aint; len++) {
2745 *pat++ = '0' + ((bits & 128) != 0);
2749 pat = aptr; /* unborrow register */
2750 XPUSHs(sv_2mortal(sv));
2754 if (pat[-1] == '*' || len > (strend - s) * 2)
2755 len = (strend - s) * 2;
2756 sv = NEWSV(35, len + 1);
2759 aptr = pat; /* borrow register */
2761 if (datumtype == 'h') {
2763 for (len = 0; len < aint; len++) {
2768 *pat++ = hexdigit[bits & 15];
2773 for (len = 0; len < aint; len++) {
2778 *pat++ = hexdigit[(bits >> 4) & 15];
2782 pat = aptr; /* unborrow register */
2783 XPUSHs(sv_2mortal(sv));
2786 if (len > strend - s)
2791 if (aint >= 128) /* fake up signed chars */
2801 if (aint >= 128) /* fake up signed chars */
2804 sv_setiv(sv, (IV)aint);
2805 PUSHs(sv_2mortal(sv));
2810 if (len > strend - s)
2825 sv_setiv(sv, (IV)auint);
2826 PUSHs(sv_2mortal(sv));
2831 along = (strend - s) / sizeof(I16);
2836 Copy(s, &ashort, 1, I16);
2845 Copy(s, &ashort, 1, I16);
2848 sv_setiv(sv, (IV)ashort);
2849 PUSHs(sv_2mortal(sv));
2856 along = (strend - s) / sizeof(U16);
2861 Copy(s, &aushort, 1, U16);
2864 if (datumtype == 'n')
2865 aushort = ntohs(aushort);
2868 if (datumtype == 'v')
2869 aushort = vtohs(aushort);
2878 Copy(s, &aushort, 1, U16);
2882 if (datumtype == 'n')
2883 aushort = ntohs(aushort);
2886 if (datumtype == 'v')
2887 aushort = vtohs(aushort);
2889 sv_setiv(sv, (IV)aushort);
2890 PUSHs(sv_2mortal(sv));
2895 along = (strend - s) / sizeof(int);
2900 Copy(s, &aint, 1, int);
2903 cdouble += (double)aint;
2912 Copy(s, &aint, 1, int);
2915 sv_setiv(sv, (IV)aint);
2916 PUSHs(sv_2mortal(sv));
2921 along = (strend - s) / sizeof(unsigned int);
2926 Copy(s, &auint, 1, unsigned int);
2927 s += sizeof(unsigned int);
2929 cdouble += (double)auint;
2938 Copy(s, &auint, 1, unsigned int);
2939 s += sizeof(unsigned int);
2941 sv_setuv(sv, (UV)auint);
2942 PUSHs(sv_2mortal(sv));
2947 along = (strend - s) / sizeof(I32);
2952 Copy(s, &along, 1, I32);
2955 cdouble += (double)along;
2964 Copy(s, &along, 1, I32);
2967 sv_setiv(sv, (IV)along);
2968 PUSHs(sv_2mortal(sv));
2975 along = (strend - s) / sizeof(U32);
2980 Copy(s, &aulong, 1, U32);
2983 if (datumtype == 'N')
2984 aulong = ntohl(aulong);
2987 if (datumtype == 'V')
2988 aulong = vtohl(aulong);
2991 cdouble += (double)aulong;
3000 Copy(s, &aulong, 1, U32);
3003 if (datumtype == 'N')
3004 aulong = ntohl(aulong);
3007 if (datumtype == 'V')
3008 aulong = vtohl(aulong);
3011 sv_setuv(sv, (UV)aulong);
3012 PUSHs(sv_2mortal(sv));
3017 along = (strend - s) / sizeof(char*);
3023 if (sizeof(char*) > strend - s)
3026 Copy(s, &aptr, 1, char*);
3032 PUSHs(sv_2mortal(sv));
3042 while ((len > 0) && (s < strend)) {
3043 auv = (auv << 7) | (*s & 0x7f);
3044 if (!(*s++ & 0x80)) {
3048 PUSHs(sv_2mortal(sv));
3052 else if (++bytes >= sizeof(UV)) { /* promote to string */
3053 char decn[sizeof(UV) * 3 + 1];
3056 (void) sprintf(decn, "%0*ld",
3057 (int)sizeof(decn) - 1, auv);
3058 sv = newSVpv(decn, 0);
3059 while (s < strend) {
3060 sv = mul128(sv, *s & 0x7f);
3061 if (!(*s++ & 0x80)) {
3070 PUSHs(sv_2mortal(sv));
3075 if ((s >= strend) && bytes)
3076 croak("Unterminated compressed integer");
3081 if (sizeof(char*) > strend - s)
3084 Copy(s, &aptr, 1, char*);
3089 sv_setpvn(sv, aptr, len);
3090 PUSHs(sv_2mortal(sv));
3097 if (s + sizeof(Quad_t) > strend)
3100 Copy(s, &aquad, 1, Quad_t);
3101 s += sizeof(Quad_t);
3104 sv_setiv(sv, (IV)aquad);
3105 PUSHs(sv_2mortal(sv));
3112 if (s + sizeof(unsigned Quad_t) > strend)
3115 Copy(s, &auquad, 1, unsigned Quad_t);
3116 s += sizeof(unsigned Quad_t);
3119 sv_setuv(sv, (UV)auquad);
3120 PUSHs(sv_2mortal(sv));
3124 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3127 along = (strend - s) / sizeof(float);
3132 Copy(s, &afloat, 1, float);
3141 Copy(s, &afloat, 1, float);
3144 sv_setnv(sv, (double)afloat);
3145 PUSHs(sv_2mortal(sv));
3151 along = (strend - s) / sizeof(double);
3156 Copy(s, &adouble, 1, double);
3157 s += sizeof(double);
3165 Copy(s, &adouble, 1, double);
3166 s += sizeof(double);
3168 sv_setnv(sv, (double)adouble);
3169 PUSHs(sv_2mortal(sv));
3174 along = (strend - s) * 3 / 4;
3175 sv = NEWSV(42, along);
3178 while (s < strend && *s > ' ' && *s < 'a') {
3183 len = (*s++ - ' ') & 077;
3185 if (s < strend && *s >= ' ')
3186 a = (*s++ - ' ') & 077;
3189 if (s < strend && *s >= ' ')
3190 b = (*s++ - ' ') & 077;
3193 if (s < strend && *s >= ' ')
3194 c = (*s++ - ' ') & 077;
3197 if (s < strend && *s >= ' ')
3198 d = (*s++ - ' ') & 077;
3201 hunk[0] = a << 2 | b >> 4;
3202 hunk[1] = b << 4 | c >> 2;
3203 hunk[2] = c << 6 | d;
3204 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3209 else if (s[1] == '\n') /* possible checksum byte */
3212 XPUSHs(sv_2mortal(sv));
3217 if (strchr("fFdD", datumtype) ||
3218 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3222 while (checksum >= 16) {
3226 while (checksum >= 4) {
3232 along = (1 << checksum) - 1;
3233 while (cdouble < 0.0)
3235 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3236 sv_setnv(sv, cdouble);
3239 if (checksum < 32) {
3240 along = (1 << checksum) - 1;
3241 culong &= (U32)along;
3243 sv_setnv(sv, (double)culong);
3245 XPUSHs(sv_2mortal(sv));
3249 if (sp == oldsp && gimme == G_SCALAR)
3255 doencodes(sv, s, len)
3263 sv_catpvn(sv, hunk, 1);
3266 hunk[0] = ' ' + (077 & (*s >> 2));
3267 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3268 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3269 hunk[3] = ' ' + (077 & (s[2] & 077));
3270 sv_catpvn(sv, hunk, 4);
3274 for (s = SvPVX(sv); *s; s++) {
3278 sv_catpvn(sv, "\n", 1);
3286 SV *result = newSVpv("", l);
3287 char *result_c = SvPV(result, na); /* convenience */
3288 char *out = result_c;
3298 SvREFCNT_dec(result);
3321 SvREFCNT_dec(result);
3327 SvCUR_set(result, out - result_c);
3333 SV *pnum; /* must be '\0' terminated */
3337 char *s = SvPV(pnum, len);
3346 i = m * 10 + (*t - '0');
3348 r = (i >> 7); /* r < 10 */
3355 SvCUR_set(pnum, (STRLEN) (t - s));
3362 dSP; dMARK; dORIGMARK; dTARGET;
3363 register SV *cat = TARG;
3366 register char *pat = SvPVx(*++MARK, fromlen);
3367 register char *patend = pat + fromlen;
3372 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3373 static char *space10 = " ";
3375 /* These must not be in registers: */
3384 unsigned Quad_t auquad;
3392 sv_setpvn(cat, "", 0);
3393 while (pat < patend) {
3394 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3397 len = strchr("@Xxu", datumtype) ? 0 : items;
3400 else if (isDIGIT(*pat)) {
3402 while (isDIGIT(*pat))
3403 len = (len * 10) + (*pat++ - '0');
3411 DIE("%% may only be used in unpack");
3422 if (SvCUR(cat) < len)
3423 DIE("X outside of string");
3430 sv_catpvn(cat, null10, 10);
3433 sv_catpvn(cat, null10, len);
3438 aptr = SvPV(fromstr, fromlen);
3442 sv_catpvn(cat, aptr, len);
3444 sv_catpvn(cat, aptr, fromlen);
3446 if (datumtype == 'A') {
3448 sv_catpvn(cat, space10, 10);
3451 sv_catpvn(cat, space10, len);
3455 sv_catpvn(cat, null10, 10);
3458 sv_catpvn(cat, null10, len);
3465 char *savepat = pat;
3470 aptr = SvPV(fromstr, fromlen);
3475 SvCUR(cat) += (len+7)/8;
3476 SvGROW(cat, SvCUR(cat) + 1);
3477 aptr = SvPVX(cat) + aint;
3482 if (datumtype == 'B') {
3483 for (len = 0; len++ < aint;) {
3484 items |= *pat++ & 1;
3488 *aptr++ = items & 0xff;
3494 for (len = 0; len++ < aint;) {
3500 *aptr++ = items & 0xff;
3506 if (datumtype == 'B')
3507 items <<= 7 - (aint & 7);
3509 items >>= 7 - (aint & 7);
3510 *aptr++ = items & 0xff;
3512 pat = SvPVX(cat) + SvCUR(cat);
3523 char *savepat = pat;
3528 aptr = SvPV(fromstr, fromlen);
3533 SvCUR(cat) += (len+1)/2;
3534 SvGROW(cat, SvCUR(cat) + 1);
3535 aptr = SvPVX(cat) + aint;
3540 if (datumtype == 'H') {
3541 for (len = 0; len++ < aint;) {
3543 items |= ((*pat++ & 15) + 9) & 15;
3545 items |= *pat++ & 15;
3549 *aptr++ = items & 0xff;
3555 for (len = 0; len++ < aint;) {
3557 items |= (((*pat++ & 15) + 9) & 15) << 4;
3559 items |= (*pat++ & 15) << 4;
3563 *aptr++ = items & 0xff;
3569 *aptr++ = items & 0xff;
3570 pat = SvPVX(cat) + SvCUR(cat);
3582 aint = SvIV(fromstr);
3584 sv_catpvn(cat, &achar, sizeof(char));
3587 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3592 afloat = (float)SvNV(fromstr);
3593 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3600 adouble = (double)SvNV(fromstr);
3601 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3607 ashort = (I16)SvIV(fromstr);
3609 ashort = htons(ashort);
3611 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3617 ashort = (I16)SvIV(fromstr);
3619 ashort = htovs(ashort);
3621 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3628 ashort = (I16)SvIV(fromstr);
3629 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3635 auint = U_I(SvNV(fromstr));
3636 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3642 adouble = floor(SvNV(fromstr));
3645 croak("Cannot compress negative numbers");
3647 if (adouble <= UV_MAX) {
3648 char buf[1 + sizeof(UV)];
3649 char *in = buf + sizeof(buf);
3650 UV auv = U_V(adouble);;
3653 *--in = (auv & 0x7f) | 0x80;
3656 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3657 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3659 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3660 char *from, *result, *in;
3665 /* Copy string and check for compliance */
3666 from = SvPV(fromstr, len);
3667 if ((norm = is_an_int(from, len)) == NULL)
3668 croak("can compress only unsigned integer");
3670 New('w', result, len, char);
3674 *--in = div128(norm, &done) | 0x80;
3675 result[len - 1] &= 0x7F; /* clear continue bit */
3676 sv_catpvn(cat, in, (result + len) - in);
3678 SvREFCNT_dec(norm); /* free norm */
3680 else if (SvNOKp(fromstr)) {
3681 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3682 char *in = buf + sizeof(buf);
3685 double next = floor(adouble / 128);
3686 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3687 if (--in < buf) /* this cannot happen ;-) */
3688 croak ("Cannot compress integer");
3690 } while (adouble > 0);
3691 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3692 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3695 croak("Cannot compress non integer");
3701 aint = SvIV(fromstr);
3702 sv_catpvn(cat, (char*)&aint, sizeof(int));
3708 aulong = U_L(SvNV(fromstr));
3710 aulong = htonl(aulong);
3712 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3718 aulong = U_L(SvNV(fromstr));
3720 aulong = htovl(aulong);
3722 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3728 aulong = U_L(SvNV(fromstr));
3729 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3735 along = SvIV(fromstr);
3736 sv_catpvn(cat, (char*)&along, sizeof(I32));
3743 auquad = (unsigned Quad_t)SvIV(fromstr);
3744 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3750 aquad = (Quad_t)SvIV(fromstr);
3751 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3754 #endif /* HAS_QUAD */
3756 len = 1; /* assume SV is correct length */
3761 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3762 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3767 aptr = SvPV(fromstr, fromlen);
3768 SvGROW(cat, fromlen * 4 / 3);
3773 while (fromlen > 0) {
3780 doencodes(cat, aptr, todo);
3798 register I32 limit = POPi; /* note, negative is forever */
3801 register char *s = SvPV(sv, len);
3802 char *strend = s + len;
3804 register REGEXP *rx;
3808 I32 maxiters = (strend - s) + 10;
3811 I32 origlimit = limit;
3814 AV *oldstack = curstack;
3815 I32 gimme = GIMME_V;
3816 I32 oldsave = savestack_ix;
3819 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3824 DIE("panic: do_split");
3825 rx = pm->op_pmregexp;
3827 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3828 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3830 if (pm->op_pmreplroot)
3831 ary = GvAVn((GV*)pm->op_pmreplroot);
3832 else if (gimme != G_ARRAY)
3836 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3840 for (i = AvFILL(ary); i >= 0; i--)
3841 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3845 /* temporarily switch stacks */
3846 SWITCHSTACK(curstack, ary);
3848 base = SP - stack_base;
3850 if (pm->op_pmflags & PMf_SKIPWHITE) {
3851 if (pm->op_pmflags & PMf_LOCALE) {
3852 while (isSPACE_LC(*s))
3860 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3862 multiline = pm->op_pmflags & PMf_MULTILINE;
3866 limit = maxiters + 2;
3867 if (pm->op_pmflags & PMf_WHITE) {
3870 while (m < strend &&
3871 !((pm->op_pmflags & PMf_LOCALE)
3872 ? isSPACE_LC(*m) : isSPACE(*m)))
3877 dstr = NEWSV(30, m-s);
3878 sv_setpvn(dstr, s, m-s);
3884 while (s < strend &&
3885 ((pm->op_pmflags & PMf_LOCALE)
3886 ? isSPACE_LC(*s) : isSPACE(*s)))
3890 else if (strEQ("^", rx->precomp)) {
3893 for (m = s; m < strend && *m != '\n'; m++) ;
3897 dstr = NEWSV(30, m-s);
3898 sv_setpvn(dstr, s, m-s);
3905 else if (pm->op_pmshort && !rx->nparens) {
3906 i = SvCUR(pm->op_pmshort);
3908 i = *SvPVX(pm->op_pmshort);
3911 for (m = s; m < strend && *m != i; m++) ;
3914 dstr = NEWSV(30, m-s);
3915 sv_setpvn(dstr, s, m-s);
3924 while (s < strend && --limit &&
3925 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3929 dstr = NEWSV(31, m-s);
3930 sv_setpvn(dstr, s, m-s);
3939 maxiters += (strend - s) * rx->nparens;
3940 while (s < strend && --limit &&
3941 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3943 TAINT_IF(rx->exec_tainted);
3945 && rx->subbase != orig) {
3950 strend = s + (strend - m);
3953 dstr = NEWSV(32, m-s);
3954 sv_setpvn(dstr, s, m-s);
3959 for (i = 1; i <= rx->nparens; i++) {
3963 dstr = NEWSV(33, m-s);
3964 sv_setpvn(dstr, s, m-s);
3967 dstr = NEWSV(33, 0);
3976 LEAVE_SCOPE(oldsave);
3977 iters = (SP - stack_base) - base;
3978 if (iters > maxiters)
3981 /* keep field after final delim? */
3982 if (s < strend || (iters && origlimit)) {
3983 dstr = NEWSV(34, strend-s);
3984 sv_setpvn(dstr, s, strend-s);
3990 else if (!origlimit) {
3991 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3995 SWITCHSTACK(ary, oldstack);
3996 if (gimme == G_ARRAY) {
3998 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4004 if (gimme == G_ARRAY)
4007 if (iters || !pm->op_pmreplroot) {