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)));
564 sv_setsv(sv, &sv_undef);
567 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
570 SvPV_set(sv, Nullch);
583 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
585 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
586 SvIVX(TOPs) != IV_MIN)
589 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
600 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
602 sv_setsv(TARG, TOPs);
603 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
604 SvIVX(TOPs) != IV_MAX)
607 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
621 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
623 sv_setsv(TARG, TOPs);
624 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
625 SvIVX(TOPs) != IV_MIN)
628 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
637 /* Ordinary operators. */
641 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
644 SETn( pow( left, right) );
651 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
654 SETn( left * right );
661 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
666 DIE("Illegal division by zero");
668 /* insure that 20./5. == 4. */
671 if ((double)I_V(left) == left &&
672 (double)I_V(right) == right &&
673 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
676 value = left / right;
680 value = left / right;
689 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
697 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
699 right = (right_neg = (i < 0)) ? -i : i;
703 right = U_V((right_neg = (n < 0)) ? -n : n);
706 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
708 left = (left_neg = (i < 0)) ? -i : i;
712 left = U_V((left_neg = (n < 0)) ? -n : n);
716 DIE("Illegal modulus zero");
719 if ((left_neg != right_neg) && ans)
722 if (ans <= -(UV)IV_MAX)
723 sv_setiv(TARG, (IV) -ans);
725 sv_setnv(TARG, -(double)ans);
736 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
738 register I32 count = POPi;
739 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
741 I32 items = SP - MARK;
753 repeatcpy((char*)(MARK + items), (char*)MARK,
754 items * sizeof(SV*), count - 1);
760 else { /* Note: mark already snarfed by pp_list */
765 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
766 if (SvREADONLY(tmpstr) && curcop != &compiling)
767 DIE("Can't x= to readonly value");
771 SvSetSV(TARG, tmpstr);
772 SvPV_force(TARG, len);
777 SvGROW(TARG, (count * len) + 1);
778 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
779 SvCUR(TARG) *= count;
783 (void)SvPOK_only(TARG);
792 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
795 SETn( left - right );
802 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
805 if (op->op_private & HINT_INTEGER) {
819 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
822 if (op->op_private & HINT_INTEGER) {
836 dSP; tryAMAGICbinSET(lt,0);
839 SETs(boolSV(TOPn < value));
846 dSP; tryAMAGICbinSET(gt,0);
849 SETs(boolSV(TOPn > value));
856 dSP; tryAMAGICbinSET(le,0);
859 SETs(boolSV(TOPn <= value));
866 dSP; tryAMAGICbinSET(ge,0);
869 SETs(boolSV(TOPn >= value));
876 dSP; tryAMAGICbinSET(ne,0);
879 SETs(boolSV(TOPn != value));
886 dSP; dTARGET; tryAMAGICbin(ncmp,0);
893 else if (left < right)
895 else if (left > right)
908 dSP; tryAMAGICbinSET(slt,0);
911 int cmp = ((op->op_private & OPpLOCALE)
912 ? sv_cmp_locale(left, right)
913 : sv_cmp(left, right));
914 SETs(boolSV(cmp < 0));
921 dSP; tryAMAGICbinSET(sgt,0);
924 int cmp = ((op->op_private & OPpLOCALE)
925 ? sv_cmp_locale(left, right)
926 : sv_cmp(left, right));
927 SETs(boolSV(cmp > 0));
934 dSP; tryAMAGICbinSET(sle,0);
937 int cmp = ((op->op_private & OPpLOCALE)
938 ? sv_cmp_locale(left, right)
939 : sv_cmp(left, right));
940 SETs(boolSV(cmp <= 0));
947 dSP; tryAMAGICbinSET(sge,0);
950 int cmp = ((op->op_private & OPpLOCALE)
951 ? sv_cmp_locale(left, right)
952 : sv_cmp(left, right));
953 SETs(boolSV(cmp >= 0));
960 dSP; tryAMAGICbinSET(seq,0);
963 SETs(boolSV(sv_eq(left, right)));
970 dSP; tryAMAGICbinSET(sne,0);
973 SETs(boolSV(!sv_eq(left, right)));
980 dSP; dTARGET; tryAMAGICbin(scmp,0);
983 int cmp = ((op->op_private & OPpLOCALE)
984 ? sv_cmp_locale(left, right)
985 : sv_cmp(left, right));
993 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
996 if (SvNIOKp(left) || SvNIOKp(right)) {
997 if (op->op_private & HINT_INTEGER) {
998 IBW value = SvIV(left) & SvIV(right);
1002 UBW value = SvUV(left) & SvUV(right);
1007 do_vop(op->op_type, TARG, left, right);
1016 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1019 if (SvNIOKp(left) || SvNIOKp(right)) {
1020 if (op->op_private & HINT_INTEGER) {
1021 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1025 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1030 do_vop(op->op_type, TARG, left, right);
1039 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1042 if (SvNIOKp(left) || SvNIOKp(right)) {
1043 if (op->op_private & HINT_INTEGER) {
1044 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1048 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1053 do_vop(op->op_type, TARG, left, right);
1062 dSP; dTARGET; tryAMAGICun(neg);
1067 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1069 else if (SvNIOKp(sv))
1071 else if (SvPOKp(sv)) {
1073 char *s = SvPV(sv, len);
1074 if (isIDFIRST(*s)) {
1075 sv_setpvn(TARG, "-", 1);
1078 else if (*s == '+' || *s == '-') {
1080 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1083 sv_setnv(TARG, -SvNV(sv));
1095 dSP; tryAMAGICunSET(not);
1096 #endif /* OVERLOAD */
1097 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1103 dSP; dTARGET; tryAMAGICun(compl);
1107 if (op->op_private & HINT_INTEGER) {
1108 IBW value = ~SvIV(sv);
1112 UBW value = ~SvUV(sv);
1117 register char *tmps;
1118 register long *tmpl;
1123 tmps = SvPV_force(TARG, len);
1126 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1129 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1133 for ( ; anum > 0; anum--, tmps++)
1142 /* integer versions of some of the above */
1146 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1149 SETi( left * right );
1156 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1160 DIE("Illegal division by zero");
1161 value = POPi / value;
1169 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1173 DIE("Illegal modulus zero");
1174 SETi( left % right );
1181 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1184 SETi( left + right );
1191 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1194 SETi( left - right );
1201 dSP; tryAMAGICbinSET(lt,0);
1204 SETs(boolSV(left < right));
1211 dSP; tryAMAGICbinSET(gt,0);
1214 SETs(boolSV(left > right));
1221 dSP; tryAMAGICbinSET(le,0);
1224 SETs(boolSV(left <= right));
1231 dSP; tryAMAGICbinSET(ge,0);
1234 SETs(boolSV(left >= right));
1241 dSP; tryAMAGICbinSET(eq,0);
1244 SETs(boolSV(left == right));
1251 dSP; tryAMAGICbinSET(ne,0);
1254 SETs(boolSV(left != right));
1261 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1268 else if (left < right)
1279 dSP; dTARGET; tryAMAGICun(neg);
1284 /* High falutin' math. */
1288 dSP; dTARGET; tryAMAGICbin(atan2,0);
1291 SETn(atan2(left, right));
1298 dSP; dTARGET; tryAMAGICun(sin);
1310 dSP; dTARGET; tryAMAGICun(cos);
1330 if (!srand_called) {
1331 (void)srand((unsigned)seed());
1332 srand_called = TRUE;
1335 value = rand() * value / 2147483648.0;
1338 value = rand() * value / 65536.0;
1341 value = rand() * value / 32768.0;
1343 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1359 (void)srand((unsigned)anum);
1360 srand_called = TRUE;
1369 * This is really just a quick hack which grabs various garbage
1370 * values. It really should be a real hash algorithm which
1371 * spreads the effect of every input bit onto every output bit,
1372 * if someone who knows about such tings would bother to write it.
1373 * Might be a good idea to add that function to CORE as well.
1374 * No numbers below come from careful analysis or anyting here,
1375 * except they are primes and SEED_C1 > 1E6 to get a full-width
1376 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1377 * probably be bigger too.
1380 # define SEED_C1 1000003
1381 #define SEED_C4 73819
1383 # define SEED_C1 25747
1384 #define SEED_C4 20639
1388 #define SEED_C5 26107
1392 # include <starlet.h>
1393 unsigned int when[2];
1394 _ckvmssts(sys$gettim(when));
1395 /* Please tell us: Which value is seconds and what is the other here? */
1396 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1398 # ifdef HAS_GETTIMEOFDAY
1399 struct timeval when;
1400 gettimeofday(&when,(struct timezone *) 0);
1401 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1405 u = (U32)SEED_C1 * when;
1408 u += SEED_C3 * (U32)getpid();
1409 u += SEED_C4 * (U32)(UV)stack_sp;
1410 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1411 u += SEED_C5 * (U32)(UV)&when;
1418 dSP; dTARGET; tryAMAGICun(exp);
1430 dSP; dTARGET; tryAMAGICun(log);
1435 SET_NUMERIC_STANDARD();
1436 DIE("Can't take log of %g", value);
1446 dSP; dTARGET; tryAMAGICun(sqrt);
1451 SET_NUMERIC_STANDARD();
1452 DIE("Can't take sqrt of %g", value);
1454 value = sqrt(value);
1464 double value = TOPn;
1467 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1473 (void)modf(value, &value);
1475 (void)modf(-value, &value);
1490 dSP; dTARGET; tryAMAGICun(abs);
1492 double value = TOPn;
1495 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1496 (iv = SvIVX(TOPs)) != IV_MIN) {
1517 XPUSHu(scan_hex(tmps, 99, &argtype));
1529 while (*tmps && isSPACE(*tmps))
1534 value = scan_hex(++tmps, 99, &argtype);
1536 value = scan_oct(tmps, 99, &argtype);
1546 SETi( sv_len(TOPs) );
1558 I32 lvalue = op->op_flags & OPf_MOD;
1560 I32 arybase = curcop->cop_arybase;
1564 pos = POPi - arybase;
1566 tmps = SvPV(sv, curlen);
1568 pos += curlen + arybase;
1569 if (pos < 0 && MAXARG < 3)
1572 if (pos < 0 || pos > curlen) {
1573 if (dowarn || lvalue)
1574 warn("substr outside of string");
1581 len += curlen - pos;
1586 rem = curlen - pos; /* rem=how many bytes left*/
1589 sv_setpvn(TARG, tmps, rem);
1590 if (lvalue) { /* it's an lvalue! */
1591 if (!SvGMAGICAL(sv)) {
1595 warn("Attempt to use reference as lvalue in substr");
1597 if (SvOK(sv)) /* is it defined ? */
1598 (void)SvPOK_only(sv);
1600 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1603 if (SvTYPE(TARG) < SVt_PVLV) {
1604 sv_upgrade(TARG, SVt_PVLV);
1605 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1610 LvTARGOFF(TARG) = pos;
1611 LvTARGLEN(TARG) = rem;
1614 PUSHs(TARG); /* avoid SvSETMAGIC here */
1621 register I32 size = POPi;
1622 register I32 offset = POPi;
1623 register SV *src = POPs;
1624 I32 lvalue = op->op_flags & OPf_MOD;
1626 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1627 unsigned long retnum;
1630 offset *= size; /* turn into bit offset */
1631 len = (offset + size + 7) / 8;
1632 if (offset < 0 || size < 1)
1635 if (lvalue) { /* it's an lvalue! */
1636 if (SvTYPE(TARG) < SVt_PVLV) {
1637 sv_upgrade(TARG, SVt_PVLV);
1638 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1643 LvTARGOFF(TARG) = offset;
1644 LvTARGLEN(TARG) = size;
1652 if (offset >= srclen)
1655 retnum = (unsigned long) s[offset] << 8;
1657 else if (size == 32) {
1658 if (offset >= srclen)
1660 else if (offset + 1 >= srclen)
1661 retnum = (unsigned long) s[offset] << 24;
1662 else if (offset + 2 >= srclen)
1663 retnum = ((unsigned long) s[offset] << 24) +
1664 ((unsigned long) s[offset + 1] << 16);
1666 retnum = ((unsigned long) s[offset] << 24) +
1667 ((unsigned long) s[offset + 1] << 16) +
1668 (s[offset + 2] << 8);
1673 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1678 else if (size == 16)
1679 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1680 else if (size == 32)
1681 retnum = ((unsigned long) s[offset] << 24) +
1682 ((unsigned long) s[offset + 1] << 16) +
1683 (s[offset + 2] << 8) + s[offset+3];
1687 sv_setiv(TARG, (IV)retnum);
1702 I32 arybase = curcop->cop_arybase;
1707 offset = POPi - arybase;
1710 tmps = SvPV(big, biglen);
1713 else if (offset > biglen)
1715 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1716 (unsigned char*)tmps + biglen, little)))
1717 retval = -1 + arybase;
1719 retval = tmps2 - tmps + arybase;
1736 I32 arybase = curcop->cop_arybase;
1742 tmps2 = SvPV(little, llen);
1743 tmps = SvPV(big, blen);
1747 offset = SvIV(offstr) - arybase + llen;
1750 else if (offset > blen)
1752 if (!(tmps2 = rninstr(tmps, tmps + offset,
1753 tmps2, tmps2 + llen)))
1754 retval = -1 + arybase;
1756 retval = tmps2 - tmps + arybase;
1763 dSP; dMARK; dORIGMARK; dTARGET;
1764 #ifdef USE_LOCALE_NUMERIC
1765 if (op->op_private & OPpLOCALE)
1766 SET_NUMERIC_LOCAL();
1768 SET_NUMERIC_STANDARD();
1770 do_sprintf(TARG, SP-MARK, MARK+1);
1771 TAINT_IF(SvTAINTED(TARG));
1785 value = (I32) (*tmps & 255);
1790 value = (I32) (anum & 255);
1801 (void)SvUPGRADE(TARG,SVt_PV);
1807 (void)SvPOK_only(TARG);
1814 dSP; dTARGET; dPOPTOPssrl;
1816 char *tmps = SvPV(left, na);
1818 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1820 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1824 "The crypt() function is unimplemented due to excessive paranoia.");
1836 if (!SvPADTMP(sv)) {
1842 s = SvPV_force(sv, na);
1844 if (op->op_private & OPpLOCALE) {
1847 *s = toUPPER_LC(*s);
1862 if (!SvPADTMP(sv)) {
1868 s = SvPV_force(sv, na);
1870 if (op->op_private & OPpLOCALE) {
1873 *s = toLOWER_LC(*s);
1890 if (!SvPADTMP(sv)) {
1897 s = SvPV_force(sv, len);
1899 register char *send = s + len;
1901 if (op->op_private & OPpLOCALE) {
1904 for (; s < send; s++)
1905 *s = toUPPER_LC(*s);
1908 for (; s < send; s++)
1922 if (!SvPADTMP(sv)) {
1929 s = SvPV_force(sv, len);
1931 register char *send = s + len;
1933 if (op->op_private & OPpLOCALE) {
1936 for (; s < send; s++)
1937 *s = toLOWER_LC(*s);
1940 for (; s < send; s++)
1952 register char *s = SvPV(sv,len);
1956 (void)SvUPGRADE(TARG, SVt_PV);
1957 SvGROW(TARG, (len * 2) + 1);
1965 SvCUR_set(TARG, d - SvPVX(TARG));
1966 (void)SvPOK_only(TARG);
1969 sv_setpvn(TARG, s, len);
1978 dSP; dMARK; dORIGMARK;
1980 register AV* av = (AV*)POPs;
1981 register I32 lval = op->op_flags & OPf_MOD;
1982 I32 arybase = curcop->cop_arybase;
1985 if (SvTYPE(av) == SVt_PVAV) {
1986 if (lval && op->op_private & OPpLVAL_INTRO) {
1988 for (svp = mark + 1; svp <= sp; svp++) {
1993 if (max > AvMAX(av))
1996 while (++MARK <= SP) {
1997 elem = SvIVx(*MARK);
2001 svp = av_fetch(av, elem, lval);
2003 if (!svp || *svp == &sv_undef)
2004 DIE(no_aelem, elem);
2005 if (op->op_private & OPpLVAL_INTRO)
2008 *MARK = svp ? *svp : &sv_undef;
2011 if (GIMME != G_ARRAY) {
2019 /* Associative arrays. */
2024 HV *hash = (HV*)POPs;
2026 I32 gimme = GIMME_V;
2029 entry = hv_iternext(hash); /* might clobber stack_sp */
2034 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2035 if (gimme == G_ARRAY) {
2037 sv_setsv(TARG, hv_iterval(hash, entry)); /* might hit stack_sp */
2042 else if (gimme == G_SCALAR)
2061 I32 gimme = GIMME_V;
2062 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2066 if (op->op_private & OPpSLICE) {
2069 if (SvTYPE(hv) != SVt_PVHV)
2070 DIE("Not a HASH reference");
2071 while (++MARK <= SP) {
2072 sv = hv_delete_ent(hv, *MARK, discard, 0);
2073 *MARK = sv ? sv : &sv_undef;
2077 else if (gimme == G_SCALAR) {
2086 if (SvTYPE(hv) != SVt_PVHV)
2087 DIE("Not a HASH reference");
2088 sv = hv_delete_ent(hv, keysv, discard, 0);
2103 if (SvTYPE(hv) != SVt_PVHV) {
2104 DIE("Not a HASH reference");
2106 if (hv_exists_ent(hv, tmpsv, 0))
2113 dSP; dMARK; dORIGMARK;
2115 register HV *hv = (HV*)POPs;
2116 register I32 lval = op->op_flags & OPf_MOD;
2118 if (SvTYPE(hv) == SVt_PVHV) {
2119 while (++MARK <= SP) {
2122 he = hv_fetch_ent(hv, keysv, lval, 0);
2124 if (!he || HeVAL(he) == &sv_undef)
2125 DIE(no_helem, SvPV(keysv, na));
2126 if (op->op_private & OPpLVAL_INTRO)
2127 save_svref(&HeVAL(he));
2129 *MARK = he ? HeVAL(he) : &sv_undef;
2132 if (GIMME != G_ARRAY) {
2140 /* List operators. */
2145 if (GIMME != G_ARRAY) {
2147 *MARK = *SP; /* unwanted list, return last item */
2158 SV **lastrelem = stack_sp;
2159 SV **lastlelem = stack_base + POPMARK;
2160 SV **firstlelem = stack_base + POPMARK + 1;
2161 register SV **firstrelem = lastlelem + 1;
2162 I32 arybase = curcop->cop_arybase;
2163 I32 lval = op->op_flags & OPf_MOD;
2164 I32 is_something_there = lval;
2166 register I32 max = lastrelem - lastlelem;
2167 register SV **lelem;
2170 if (GIMME != G_ARRAY) {
2171 ix = SvIVx(*lastlelem);
2176 if (ix < 0 || ix >= max)
2177 *firstlelem = &sv_undef;
2179 *firstlelem = firstrelem[ix];
2185 SP = firstlelem - 1;
2189 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2195 else if (!(*lelem = firstrelem[ix]))
2200 if (ix >= max || !(*lelem = firstrelem[ix]))
2203 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2204 is_something_there = TRUE;
2206 if (is_something_there)
2209 SP = firstlelem - 1;
2215 dSP; dMARK; dORIGMARK;
2216 I32 items = SP - MARK;
2217 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2218 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2225 dSP; dMARK; dORIGMARK;
2226 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2230 SV *val = NEWSV(46, 0);
2232 sv_setsv(val, *++MARK);
2234 warn("Odd number of elements in hash list");
2235 (void)hv_store_ent(hv,key,val,0);
2244 dSP; dMARK; dORIGMARK;
2245 register AV *ary = (AV*)*++MARK;
2249 register I32 offset;
2250 register I32 length;
2259 offset = SvIVx(*MARK);
2261 offset += AvFILL(ary) + 1;
2263 offset -= curcop->cop_arybase;
2265 length = SvIVx(*MARK++);
2270 length = AvMAX(ary) + 1; /* close enough to infinity */
2274 length = AvMAX(ary) + 1;
2282 if (offset > AvFILL(ary) + 1)
2283 offset = AvFILL(ary) + 1;
2284 after = AvFILL(ary) + 1 - (offset + length);
2285 if (after < 0) { /* not that much array */
2286 length += after; /* offset+length now in array */
2292 /* At this point, MARK .. SP-1 is our new LIST */
2295 diff = newlen - length;
2297 if (diff < 0) { /* shrinking the area */
2299 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2300 Copy(MARK, tmparyval, newlen, SV*);
2303 MARK = ORIGMARK + 1;
2304 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2305 MEXTEND(MARK, length);
2306 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2308 EXTEND_MORTAL(length);
2309 for (i = length, dst = MARK; i; i--) {
2310 if (!SvIMMORTAL(*dst))
2311 sv_2mortal(*dst); /* free them eventualy */
2318 *MARK = AvARRAY(ary)[offset+length-1];
2320 if (!SvIMMORTAL(*MARK))
2322 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2323 SvREFCNT_dec(*dst++); /* free them now */
2326 AvFILL(ary) += diff;
2328 /* pull up or down? */
2330 if (offset < after) { /* easier to pull up */
2331 if (offset) { /* esp. if nothing to pull */
2332 src = &AvARRAY(ary)[offset-1];
2333 dst = src - diff; /* diff is negative */
2334 for (i = offset; i > 0; i--) /* can't trust Copy */
2338 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2342 if (after) { /* anything to pull down? */
2343 src = AvARRAY(ary) + offset + length;
2344 dst = src + diff; /* diff is negative */
2345 Move(src, dst, after, SV*);
2347 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2348 /* avoid later double free */
2352 dst[--i] = &sv_undef;
2355 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2357 *dst = NEWSV(46, 0);
2358 sv_setsv(*dst++, *src++);
2360 Safefree(tmparyval);
2363 else { /* no, expanding (or same) */
2365 New(452, tmparyval, length, SV*); /* so remember deletion */
2366 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2369 if (diff > 0) { /* expanding */
2371 /* push up or down? */
2373 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2377 Move(src, dst, offset, SV*);
2379 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2381 AvFILL(ary) += diff;
2384 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2385 av_extend(ary, AvFILL(ary) + diff);
2386 AvFILL(ary) += diff;
2389 dst = AvARRAY(ary) + AvFILL(ary);
2391 for (i = after; i; i--) {
2398 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2399 *dst = NEWSV(46, 0);
2400 sv_setsv(*dst++, *src++);
2402 MARK = ORIGMARK + 1;
2403 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2405 Copy(tmparyval, MARK, length, SV*);
2407 EXTEND_MORTAL(length);
2408 for (i = length, dst = MARK; i; i--) {
2409 if (!SvIMMORTAL(*dst))
2410 sv_2mortal(*dst); /* free them eventualy */
2414 Safefree(tmparyval);
2418 else if (length--) {
2419 *MARK = tmparyval[length];
2421 if (!SvIMMORTAL(*MARK))
2423 while (length-- > 0)
2424 SvREFCNT_dec(tmparyval[length]);
2426 Safefree(tmparyval);
2437 dSP; dMARK; dORIGMARK; dTARGET;
2438 register AV *ary = (AV*)*++MARK;
2439 register SV *sv = &sv_undef;
2441 for (++MARK; MARK <= SP; MARK++) {
2444 sv_setsv(sv, *MARK);
2448 PUSHi( AvFILL(ary) + 1 );
2456 SV *sv = av_pop(av);
2457 if (!SvIMMORTAL(sv) && AvREAL(av))
2458 (void)sv_2mortal(sv);
2467 SV *sv = av_shift(av);
2471 if (!SvIMMORTAL(sv) && AvREAL(av))
2472 (void)sv_2mortal(sv);
2479 dSP; dMARK; dORIGMARK; dTARGET;
2480 register AV *ary = (AV*)*++MARK;
2484 av_unshift(ary, SP - MARK);
2487 sv_setsv(sv, *++MARK);
2488 (void)av_store(ary, i++, sv);
2492 PUSHi( AvFILL(ary) + 1 );
2502 if (GIMME == G_ARRAY) {
2513 register char *down;
2519 do_join(TARG, &sv_no, MARK, SP);
2521 sv_setsv(TARG, (SP > MARK) ? *SP : GvSV(defgv));
2522 up = SvPV_force(TARG, len);
2524 down = SvPVX(TARG) + len - 1;
2530 (void)SvPOK_only(TARG);
2544 char *s = SvPV(sv, len);
2548 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2549 SV *new = newSVpv("0000000000", 10);
2552 SvREFCNT_dec(sv); /* free old sv */
2557 while (!*t) /* trailing '\0'? */
2560 i = ((*t - '0') << 7) + m;
2561 *(t--) = '0' + (i % 10);
2567 /* Explosives and implosives. */
2574 I32 gimme = GIMME_V;
2578 register char *pat = SvPV(left, llen);
2579 register char *s = SvPV(right, rlen);
2580 char *strend = s + rlen;
2582 register char *patend = pat + llen;
2587 /* These must not be in registers: */
2598 unsigned Quad_t auquad;
2604 register U32 culong;
2606 static char* bitcount = 0;
2608 if (gimme != G_ARRAY) { /* arrange to do first one only */
2610 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2611 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2613 while (isDIGIT(*patend) || *patend == '*')
2619 while (pat < patend) {
2624 else if (*pat == '*') {
2625 len = strend - strbeg; /* long enough */
2628 else if (isDIGIT(*pat)) {
2630 while (isDIGIT(*pat))
2631 len = (len * 10) + (*pat++ - '0');
2634 len = (datumtype != '@');
2639 if (len == 1 && pat[-1] != '1')
2648 if (len > strend - strbeg)
2649 DIE("@ outside of string");
2653 if (len > s - strbeg)
2654 DIE("X outside of string");
2658 if (len > strend - s)
2659 DIE("x outside of string");
2664 if (len > strend - s)
2667 goto uchar_checksum;
2668 sv = NEWSV(35, len);
2669 sv_setpvn(sv, s, len);
2671 if (datumtype == 'A') {
2672 aptr = s; /* borrow register */
2673 s = SvPVX(sv) + len - 1;
2674 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2677 SvCUR_set(sv, s - SvPVX(sv));
2678 s = aptr; /* unborrow register */
2680 XPUSHs(sv_2mortal(sv));
2684 if (pat[-1] == '*' || len > (strend - s) * 8)
2685 len = (strend - s) * 8;
2688 Newz(601, bitcount, 256, char);
2689 for (bits = 1; bits < 256; bits++) {
2690 if (bits & 1) bitcount[bits]++;
2691 if (bits & 2) bitcount[bits]++;
2692 if (bits & 4) bitcount[bits]++;
2693 if (bits & 8) bitcount[bits]++;
2694 if (bits & 16) bitcount[bits]++;
2695 if (bits & 32) bitcount[bits]++;
2696 if (bits & 64) bitcount[bits]++;
2697 if (bits & 128) bitcount[bits]++;
2701 culong += bitcount[*(unsigned char*)s++];
2706 if (datumtype == 'b') {
2708 if (bits & 1) culong++;
2714 if (bits & 128) culong++;
2721 sv = NEWSV(35, len + 1);
2724 aptr = pat; /* borrow register */
2726 if (datumtype == 'b') {
2728 for (len = 0; len < aint; len++) {
2729 if (len & 7) /*SUPPRESS 595*/
2733 *pat++ = '0' + (bits & 1);
2738 for (len = 0; len < aint; len++) {
2743 *pat++ = '0' + ((bits & 128) != 0);
2747 pat = aptr; /* unborrow register */
2748 XPUSHs(sv_2mortal(sv));
2752 if (pat[-1] == '*' || len > (strend - s) * 2)
2753 len = (strend - s) * 2;
2754 sv = NEWSV(35, len + 1);
2757 aptr = pat; /* borrow register */
2759 if (datumtype == 'h') {
2761 for (len = 0; len < aint; len++) {
2766 *pat++ = hexdigit[bits & 15];
2771 for (len = 0; len < aint; len++) {
2776 *pat++ = hexdigit[(bits >> 4) & 15];
2780 pat = aptr; /* unborrow register */
2781 XPUSHs(sv_2mortal(sv));
2784 if (len > strend - s)
2789 if (aint >= 128) /* fake up signed chars */
2799 if (aint >= 128) /* fake up signed chars */
2802 sv_setiv(sv, (IV)aint);
2803 PUSHs(sv_2mortal(sv));
2808 if (len > strend - s)
2823 sv_setiv(sv, (IV)auint);
2824 PUSHs(sv_2mortal(sv));
2829 along = (strend - s) / sizeof(I16);
2834 Copy(s, &ashort, 1, I16);
2843 Copy(s, &ashort, 1, I16);
2846 sv_setiv(sv, (IV)ashort);
2847 PUSHs(sv_2mortal(sv));
2854 along = (strend - s) / sizeof(U16);
2859 Copy(s, &aushort, 1, U16);
2862 if (datumtype == 'n')
2863 aushort = ntohs(aushort);
2866 if (datumtype == 'v')
2867 aushort = vtohs(aushort);
2876 Copy(s, &aushort, 1, U16);
2880 if (datumtype == 'n')
2881 aushort = ntohs(aushort);
2884 if (datumtype == 'v')
2885 aushort = vtohs(aushort);
2887 sv_setiv(sv, (IV)aushort);
2888 PUSHs(sv_2mortal(sv));
2893 along = (strend - s) / sizeof(int);
2898 Copy(s, &aint, 1, int);
2901 cdouble += (double)aint;
2910 Copy(s, &aint, 1, int);
2913 sv_setiv(sv, (IV)aint);
2914 PUSHs(sv_2mortal(sv));
2919 along = (strend - s) / sizeof(unsigned int);
2924 Copy(s, &auint, 1, unsigned int);
2925 s += sizeof(unsigned int);
2927 cdouble += (double)auint;
2936 Copy(s, &auint, 1, unsigned int);
2937 s += sizeof(unsigned int);
2939 sv_setuv(sv, (UV)auint);
2940 PUSHs(sv_2mortal(sv));
2945 along = (strend - s) / sizeof(I32);
2950 Copy(s, &along, 1, I32);
2953 cdouble += (double)along;
2962 Copy(s, &along, 1, I32);
2965 sv_setiv(sv, (IV)along);
2966 PUSHs(sv_2mortal(sv));
2973 along = (strend - s) / sizeof(U32);
2978 Copy(s, &aulong, 1, U32);
2981 if (datumtype == 'N')
2982 aulong = ntohl(aulong);
2985 if (datumtype == 'V')
2986 aulong = vtohl(aulong);
2989 cdouble += (double)aulong;
2998 Copy(s, &aulong, 1, U32);
3001 if (datumtype == 'N')
3002 aulong = ntohl(aulong);
3005 if (datumtype == 'V')
3006 aulong = vtohl(aulong);
3009 sv_setuv(sv, (UV)aulong);
3010 PUSHs(sv_2mortal(sv));
3015 along = (strend - s) / sizeof(char*);
3021 if (sizeof(char*) > strend - s)
3024 Copy(s, &aptr, 1, char*);
3030 PUSHs(sv_2mortal(sv));
3040 while ((len > 0) && (s < strend)) {
3041 auv = (auv << 7) | (*s & 0x7f);
3042 if (!(*s++ & 0x80)) {
3046 PUSHs(sv_2mortal(sv));
3050 else if (++bytes >= sizeof(UV)) { /* promote to string */
3051 char decn[sizeof(UV) * 3 + 1];
3054 (void) sprintf(decn, "%0*ld",
3055 (int)sizeof(decn) - 1, auv);
3056 sv = newSVpv(decn, 0);
3057 while (s < strend) {
3058 sv = mul128(sv, *s & 0x7f);
3059 if (!(*s++ & 0x80)) {
3068 PUSHs(sv_2mortal(sv));
3073 if ((s >= strend) && bytes)
3074 croak("Unterminated compressed integer");
3079 if (sizeof(char*) > strend - s)
3082 Copy(s, &aptr, 1, char*);
3087 sv_setpvn(sv, aptr, len);
3088 PUSHs(sv_2mortal(sv));
3095 if (s + sizeof(Quad_t) > strend)
3098 Copy(s, &aquad, 1, Quad_t);
3099 s += sizeof(Quad_t);
3102 sv_setiv(sv, (IV)aquad);
3103 PUSHs(sv_2mortal(sv));
3110 if (s + sizeof(unsigned Quad_t) > strend)
3113 Copy(s, &auquad, 1, unsigned Quad_t);
3114 s += sizeof(unsigned Quad_t);
3117 sv_setuv(sv, (UV)auquad);
3118 PUSHs(sv_2mortal(sv));
3122 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3125 along = (strend - s) / sizeof(float);
3130 Copy(s, &afloat, 1, float);
3139 Copy(s, &afloat, 1, float);
3142 sv_setnv(sv, (double)afloat);
3143 PUSHs(sv_2mortal(sv));
3149 along = (strend - s) / sizeof(double);
3154 Copy(s, &adouble, 1, double);
3155 s += sizeof(double);
3163 Copy(s, &adouble, 1, double);
3164 s += sizeof(double);
3166 sv_setnv(sv, (double)adouble);
3167 PUSHs(sv_2mortal(sv));
3172 along = (strend - s) * 3 / 4;
3173 sv = NEWSV(42, along);
3176 while (s < strend && *s > ' ' && *s < 'a') {
3181 len = (*s++ - ' ') & 077;
3183 if (s < strend && *s >= ' ')
3184 a = (*s++ - ' ') & 077;
3187 if (s < strend && *s >= ' ')
3188 b = (*s++ - ' ') & 077;
3191 if (s < strend && *s >= ' ')
3192 c = (*s++ - ' ') & 077;
3195 if (s < strend && *s >= ' ')
3196 d = (*s++ - ' ') & 077;
3199 hunk[0] = a << 2 | b >> 4;
3200 hunk[1] = b << 4 | c >> 2;
3201 hunk[2] = c << 6 | d;
3202 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3207 else if (s[1] == '\n') /* possible checksum byte */
3210 XPUSHs(sv_2mortal(sv));
3215 if (strchr("fFdD", datumtype) ||
3216 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3220 while (checksum >= 16) {
3224 while (checksum >= 4) {
3230 along = (1 << checksum) - 1;
3231 while (cdouble < 0.0)
3233 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3234 sv_setnv(sv, cdouble);
3237 if (checksum < 32) {
3238 along = (1 << checksum) - 1;
3239 culong &= (U32)along;
3241 sv_setnv(sv, (double)culong);
3243 XPUSHs(sv_2mortal(sv));
3247 if (sp == oldsp && gimme == G_SCALAR)
3253 doencodes(sv, s, len)
3261 sv_catpvn(sv, hunk, 1);
3264 hunk[0] = ' ' + (077 & (*s >> 2));
3265 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3266 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3267 hunk[3] = ' ' + (077 & (s[2] & 077));
3268 sv_catpvn(sv, hunk, 4);
3272 for (s = SvPVX(sv); *s; s++) {
3276 sv_catpvn(sv, "\n", 1);
3284 SV *result = newSVpv("", l);
3285 char *result_c = SvPV(result, na); /* convenience */
3286 char *out = result_c;
3296 SvREFCNT_dec(result);
3319 SvREFCNT_dec(result);
3325 SvCUR_set(result, out - result_c);
3331 SV *pnum; /* must be '\0' terminated */
3335 char *s = SvPV(pnum, len);
3344 i = m * 10 + (*t - '0');
3346 r = (i >> 7); /* r < 10 */
3353 SvCUR_set(pnum, (STRLEN) (t - s));
3360 dSP; dMARK; dORIGMARK; dTARGET;
3361 register SV *cat = TARG;
3364 register char *pat = SvPVx(*++MARK, fromlen);
3365 register char *patend = pat + fromlen;
3370 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3371 static char *space10 = " ";
3373 /* These must not be in registers: */
3382 unsigned Quad_t auquad;
3390 sv_setpvn(cat, "", 0);
3391 while (pat < patend) {
3392 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3395 len = strchr("@Xxu", datumtype) ? 0 : items;
3398 else if (isDIGIT(*pat)) {
3400 while (isDIGIT(*pat))
3401 len = (len * 10) + (*pat++ - '0');
3409 DIE("%% may only be used in unpack");
3420 if (SvCUR(cat) < len)
3421 DIE("X outside of string");
3428 sv_catpvn(cat, null10, 10);
3431 sv_catpvn(cat, null10, len);
3436 aptr = SvPV(fromstr, fromlen);
3440 sv_catpvn(cat, aptr, len);
3442 sv_catpvn(cat, aptr, fromlen);
3444 if (datumtype == 'A') {
3446 sv_catpvn(cat, space10, 10);
3449 sv_catpvn(cat, space10, len);
3453 sv_catpvn(cat, null10, 10);
3456 sv_catpvn(cat, null10, len);
3463 char *savepat = pat;
3468 aptr = SvPV(fromstr, fromlen);
3473 SvCUR(cat) += (len+7)/8;
3474 SvGROW(cat, SvCUR(cat) + 1);
3475 aptr = SvPVX(cat) + aint;
3480 if (datumtype == 'B') {
3481 for (len = 0; len++ < aint;) {
3482 items |= *pat++ & 1;
3486 *aptr++ = items & 0xff;
3492 for (len = 0; len++ < aint;) {
3498 *aptr++ = items & 0xff;
3504 if (datumtype == 'B')
3505 items <<= 7 - (aint & 7);
3507 items >>= 7 - (aint & 7);
3508 *aptr++ = items & 0xff;
3510 pat = SvPVX(cat) + SvCUR(cat);
3521 char *savepat = pat;
3526 aptr = SvPV(fromstr, fromlen);
3531 SvCUR(cat) += (len+1)/2;
3532 SvGROW(cat, SvCUR(cat) + 1);
3533 aptr = SvPVX(cat) + aint;
3538 if (datumtype == 'H') {
3539 for (len = 0; len++ < aint;) {
3541 items |= ((*pat++ & 15) + 9) & 15;
3543 items |= *pat++ & 15;
3547 *aptr++ = items & 0xff;
3553 for (len = 0; len++ < aint;) {
3555 items |= (((*pat++ & 15) + 9) & 15) << 4;
3557 items |= (*pat++ & 15) << 4;
3561 *aptr++ = items & 0xff;
3567 *aptr++ = items & 0xff;
3568 pat = SvPVX(cat) + SvCUR(cat);
3580 aint = SvIV(fromstr);
3582 sv_catpvn(cat, &achar, sizeof(char));
3585 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3590 afloat = (float)SvNV(fromstr);
3591 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3598 adouble = (double)SvNV(fromstr);
3599 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3605 ashort = (I16)SvIV(fromstr);
3607 ashort = htons(ashort);
3609 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3615 ashort = (I16)SvIV(fromstr);
3617 ashort = htovs(ashort);
3619 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3626 ashort = (I16)SvIV(fromstr);
3627 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3633 auint = U_I(SvNV(fromstr));
3634 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3640 adouble = floor(SvNV(fromstr));
3643 croak("Cannot compress negative numbers");
3645 if (adouble <= UV_MAX) {
3646 char buf[1 + sizeof(UV)];
3647 char *in = buf + sizeof(buf);
3648 UV auv = U_V(adouble);;
3651 *--in = (auv & 0x7f) | 0x80;
3654 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3655 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3657 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3658 char *from, *result, *in;
3663 /* Copy string and check for compliance */
3664 from = SvPV(fromstr, len);
3665 if ((norm = is_an_int(from, len)) == NULL)
3666 croak("can compress only unsigned integer");
3668 New('w', result, len, char);
3672 *--in = div128(norm, &done) | 0x80;
3673 result[len - 1] &= 0x7F; /* clear continue bit */
3674 sv_catpvn(cat, in, (result + len) - in);
3676 SvREFCNT_dec(norm); /* free norm */
3678 else if (SvNOKp(fromstr)) {
3679 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3680 char *in = buf + sizeof(buf);
3683 double next = floor(adouble / 128);
3684 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3685 if (--in < buf) /* this cannot happen ;-) */
3686 croak ("Cannot compress integer");
3688 } while (adouble > 0);
3689 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3690 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3693 croak("Cannot compress non integer");
3699 aint = SvIV(fromstr);
3700 sv_catpvn(cat, (char*)&aint, sizeof(int));
3706 aulong = U_L(SvNV(fromstr));
3708 aulong = htonl(aulong);
3710 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3716 aulong = U_L(SvNV(fromstr));
3718 aulong = htovl(aulong);
3720 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3726 aulong = U_L(SvNV(fromstr));
3727 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3733 along = SvIV(fromstr);
3734 sv_catpvn(cat, (char*)&along, sizeof(I32));
3741 auquad = (unsigned Quad_t)SvIV(fromstr);
3742 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3748 aquad = (Quad_t)SvIV(fromstr);
3749 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3752 #endif /* HAS_QUAD */
3754 len = 1; /* assume SV is correct length */
3759 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3760 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3765 aptr = SvPV(fromstr, fromlen);
3766 SvGROW(cat, fromlen * 4 / 3);
3771 while (fromlen > 0) {
3778 doencodes(cat, aptr, todo);
3796 register I32 limit = POPi; /* note, negative is forever */
3799 register char *s = SvPV(sv, len);
3800 char *strend = s + len;
3802 register REGEXP *rx;
3806 I32 maxiters = (strend - s) + 10;
3809 I32 origlimit = limit;
3812 AV *oldstack = curstack;
3813 I32 gimme = GIMME_V;
3814 I32 oldsave = savestack_ix;
3817 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3822 DIE("panic: do_split");
3823 rx = pm->op_pmregexp;
3825 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3826 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3828 if (pm->op_pmreplroot)
3829 ary = GvAVn((GV*)pm->op_pmreplroot);
3830 else if (gimme != G_ARRAY)
3834 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3838 for (i = AvFILL(ary); i >= 0; i--)
3839 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3843 /* temporarily switch stacks */
3844 SWITCHSTACK(curstack, ary);
3846 base = SP - stack_base;
3848 if (pm->op_pmflags & PMf_SKIPWHITE) {
3849 if (pm->op_pmflags & PMf_LOCALE) {
3850 while (isSPACE_LC(*s))
3858 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3860 multiline = pm->op_pmflags & PMf_MULTILINE;
3864 limit = maxiters + 2;
3865 if (pm->op_pmflags & PMf_WHITE) {
3868 while (m < strend &&
3869 !((pm->op_pmflags & PMf_LOCALE)
3870 ? isSPACE_LC(*m) : isSPACE(*m)))
3875 dstr = NEWSV(30, m-s);
3876 sv_setpvn(dstr, s, m-s);
3882 while (s < strend &&
3883 ((pm->op_pmflags & PMf_LOCALE)
3884 ? isSPACE_LC(*s) : isSPACE(*s)))
3888 else if (strEQ("^", rx->precomp)) {
3891 for (m = s; m < strend && *m != '\n'; m++) ;
3895 dstr = NEWSV(30, m-s);
3896 sv_setpvn(dstr, s, m-s);
3903 else if (pm->op_pmshort && !rx->nparens) {
3904 i = SvCUR(pm->op_pmshort);
3906 i = *SvPVX(pm->op_pmshort);
3909 for (m = s; m < strend && *m != i; m++) ;
3912 dstr = NEWSV(30, m-s);
3913 sv_setpvn(dstr, s, m-s);
3922 while (s < strend && --limit &&
3923 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3927 dstr = NEWSV(31, m-s);
3928 sv_setpvn(dstr, s, m-s);
3937 maxiters += (strend - s) * rx->nparens;
3938 while (s < strend && --limit &&
3939 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3941 TAINT_IF(rx->exec_tainted);
3943 && rx->subbase != orig) {
3948 strend = s + (strend - m);
3951 dstr = NEWSV(32, m-s);
3952 sv_setpvn(dstr, s, m-s);
3957 for (i = 1; i <= rx->nparens; i++) {
3961 dstr = NEWSV(33, m-s);
3962 sv_setpvn(dstr, s, m-s);
3965 dstr = NEWSV(33, 0);
3974 LEAVE_SCOPE(oldsave);
3975 iters = (SP - stack_base) - base;
3976 if (iters > maxiters)
3979 /* keep field after final delim? */
3980 if (s < strend || (iters && origlimit)) {
3981 dstr = NEWSV(34, strend-s);
3982 sv_setpvn(dstr, s, strend-s);
3988 else if (!origlimit) {
3989 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3993 SWITCHSTACK(ary, oldstack);
3994 if (gimme == G_ARRAY) {
3996 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4002 if (gimme == G_ARRAY)
4005 if (iters || !pm->op_pmreplroot) {