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;
1368 # include <starlet.h>
1369 unsigned int when[2];
1370 _ckvmssts(sys$gettim(when));
1371 u = when[0] ^ when[1];
1373 # ifdef HAS_GETTIMEOFDAY
1374 struct timeval when;
1375 gettimeofday(&when,(struct timezone *) 0);
1376 u = when.tv_sec ^ when.tv_usec;
1383 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1384 /* What is a good hashing algorithm here? */
1385 u ^= ( ( 269 * (U32)getpid())
1386 ^ (26107 * (U32)&when)
1387 ^ (73819 * (U32)stack_sp));
1394 dSP; dTARGET; tryAMAGICun(exp);
1406 dSP; dTARGET; tryAMAGICun(log);
1411 SET_NUMERIC_STANDARD();
1412 DIE("Can't take log of %g", value);
1422 dSP; dTARGET; tryAMAGICun(sqrt);
1427 SET_NUMERIC_STANDARD();
1428 DIE("Can't take sqrt of %g", value);
1430 value = sqrt(value);
1440 double value = TOPn;
1443 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1449 (void)modf(value, &value);
1451 (void)modf(-value, &value);
1466 dSP; dTARGET; tryAMAGICun(abs);
1468 double value = TOPn;
1471 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1472 (iv = SvIVX(TOPs)) != IV_MIN) {
1493 XPUSHu(scan_hex(tmps, 99, &argtype));
1505 while (*tmps && isSPACE(*tmps))
1510 value = scan_hex(++tmps, 99, &argtype);
1512 value = scan_oct(tmps, 99, &argtype);
1522 SETi( sv_len(TOPs) );
1534 I32 lvalue = op->op_flags & OPf_MOD;
1536 I32 arybase = curcop->cop_arybase;
1540 pos = POPi - arybase;
1542 tmps = SvPV(sv, curlen);
1544 pos += curlen + arybase;
1545 if (pos < 0 && MAXARG < 3)
1548 if (pos < 0 || pos > curlen) {
1549 if (dowarn || lvalue)
1550 warn("substr outside of string");
1557 len += curlen - pos;
1562 rem = curlen - pos; /* rem=how many bytes left*/
1565 sv_setpvn(TARG, tmps, rem);
1566 if (lvalue) { /* it's an lvalue! */
1567 if (!SvGMAGICAL(sv)) {
1571 warn("Attempt to use reference as lvalue in substr");
1573 if (SvOK(sv)) /* is it defined ? */
1574 (void)SvPOK_only(sv);
1576 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1579 if (SvTYPE(TARG) < SVt_PVLV) {
1580 sv_upgrade(TARG, SVt_PVLV);
1581 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1586 LvTARGOFF(TARG) = pos;
1587 LvTARGLEN(TARG) = rem;
1590 PUSHs(TARG); /* avoid SvSETMAGIC here */
1597 register I32 size = POPi;
1598 register I32 offset = POPi;
1599 register SV *src = POPs;
1600 I32 lvalue = op->op_flags & OPf_MOD;
1602 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1603 unsigned long retnum;
1606 offset *= size; /* turn into bit offset */
1607 len = (offset + size + 7) / 8;
1608 if (offset < 0 || size < 1)
1611 if (lvalue) { /* it's an lvalue! */
1612 if (SvTYPE(TARG) < SVt_PVLV) {
1613 sv_upgrade(TARG, SVt_PVLV);
1614 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1619 LvTARGOFF(TARG) = offset;
1620 LvTARGLEN(TARG) = size;
1628 if (offset >= srclen)
1631 retnum = (unsigned long) s[offset] << 8;
1633 else if (size == 32) {
1634 if (offset >= srclen)
1636 else if (offset + 1 >= srclen)
1637 retnum = (unsigned long) s[offset] << 24;
1638 else if (offset + 2 >= srclen)
1639 retnum = ((unsigned long) s[offset] << 24) +
1640 ((unsigned long) s[offset + 1] << 16);
1642 retnum = ((unsigned long) s[offset] << 24) +
1643 ((unsigned long) s[offset + 1] << 16) +
1644 (s[offset + 2] << 8);
1649 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1654 else if (size == 16)
1655 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1656 else if (size == 32)
1657 retnum = ((unsigned long) s[offset] << 24) +
1658 ((unsigned long) s[offset + 1] << 16) +
1659 (s[offset + 2] << 8) + s[offset+3];
1663 sv_setiv(TARG, (IV)retnum);
1678 I32 arybase = curcop->cop_arybase;
1683 offset = POPi - arybase;
1686 tmps = SvPV(big, biglen);
1689 else if (offset > biglen)
1691 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1692 (unsigned char*)tmps + biglen, little)))
1693 retval = -1 + arybase;
1695 retval = tmps2 - tmps + arybase;
1712 I32 arybase = curcop->cop_arybase;
1718 tmps2 = SvPV(little, llen);
1719 tmps = SvPV(big, blen);
1723 offset = SvIV(offstr) - arybase + llen;
1726 else if (offset > blen)
1728 if (!(tmps2 = rninstr(tmps, tmps + offset,
1729 tmps2, tmps2 + llen)))
1730 retval = -1 + arybase;
1732 retval = tmps2 - tmps + arybase;
1739 dSP; dMARK; dORIGMARK; dTARGET;
1740 #ifdef USE_LOCALE_NUMERIC
1741 if (op->op_private & OPpLOCALE)
1742 SET_NUMERIC_LOCAL();
1744 SET_NUMERIC_STANDARD();
1746 do_sprintf(TARG, SP-MARK, MARK+1);
1747 TAINT_IF(SvTAINTED(TARG));
1761 value = (I32) (*tmps & 255);
1766 value = (I32) (anum & 255);
1777 (void)SvUPGRADE(TARG,SVt_PV);
1783 (void)SvPOK_only(TARG);
1790 dSP; dTARGET; dPOPTOPssrl;
1792 char *tmps = SvPV(left, na);
1794 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1796 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1800 "The crypt() function is unimplemented due to excessive paranoia.");
1812 if (!SvPADTMP(sv)) {
1818 s = SvPV_force(sv, na);
1820 if (op->op_private & OPpLOCALE) {
1823 *s = toUPPER_LC(*s);
1838 if (!SvPADTMP(sv)) {
1844 s = SvPV_force(sv, na);
1846 if (op->op_private & OPpLOCALE) {
1849 *s = toLOWER_LC(*s);
1866 if (!SvPADTMP(sv)) {
1873 s = SvPV_force(sv, len);
1875 register char *send = s + len;
1877 if (op->op_private & OPpLOCALE) {
1880 for (; s < send; s++)
1881 *s = toUPPER_LC(*s);
1884 for (; s < send; s++)
1898 if (!SvPADTMP(sv)) {
1905 s = SvPV_force(sv, len);
1907 register char *send = s + len;
1909 if (op->op_private & OPpLOCALE) {
1912 for (; s < send; s++)
1913 *s = toLOWER_LC(*s);
1916 for (; s < send; s++)
1928 register char *s = SvPV(sv,len);
1932 (void)SvUPGRADE(TARG, SVt_PV);
1933 SvGROW(TARG, (len * 2) + 1);
1941 SvCUR_set(TARG, d - SvPVX(TARG));
1942 (void)SvPOK_only(TARG);
1945 sv_setpvn(TARG, s, len);
1954 dSP; dMARK; dORIGMARK;
1956 register AV* av = (AV*)POPs;
1957 register I32 lval = op->op_flags & OPf_MOD;
1958 I32 arybase = curcop->cop_arybase;
1961 if (SvTYPE(av) == SVt_PVAV) {
1962 if (lval && op->op_private & OPpLVAL_INTRO) {
1964 for (svp = mark + 1; svp <= sp; svp++) {
1969 if (max > AvMAX(av))
1972 while (++MARK <= SP) {
1973 elem = SvIVx(*MARK);
1977 svp = av_fetch(av, elem, lval);
1979 if (!svp || *svp == &sv_undef)
1980 DIE(no_aelem, elem);
1981 if (op->op_private & OPpLVAL_INTRO)
1984 *MARK = svp ? *svp : &sv_undef;
1987 if (GIMME != G_ARRAY) {
1995 /* Associative arrays. */
2000 HV *hash = (HV*)POPs;
2004 entry = hv_iternext(hash); /* might clobber stack_sp */
2009 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2010 if (GIMME == G_ARRAY) {
2012 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
2017 else if (GIMME == G_SCALAR)
2039 if (op->op_private & OPpSLICE) {
2042 if (SvTYPE(hv) != SVt_PVHV)
2043 DIE("Not a HASH reference");
2044 while (++MARK <= SP) {
2045 sv = hv_delete_ent(hv, *MARK,
2046 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2047 *MARK = sv ? sv : &sv_undef;
2049 if (GIMME != G_ARRAY) {
2058 if (SvTYPE(hv) != SVt_PVHV)
2059 DIE("Not a HASH reference");
2060 sv = hv_delete_ent(hv, keysv,
2061 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2075 if (SvTYPE(hv) != SVt_PVHV) {
2076 DIE("Not a HASH reference");
2078 if (hv_exists_ent(hv, tmpsv, 0))
2085 dSP; dMARK; dORIGMARK;
2087 register HV *hv = (HV*)POPs;
2088 register I32 lval = op->op_flags & OPf_MOD;
2090 if (SvTYPE(hv) == SVt_PVHV) {
2091 while (++MARK <= SP) {
2094 he = hv_fetch_ent(hv, keysv, lval, 0);
2096 if (!he || HeVAL(he) == &sv_undef)
2097 DIE(no_helem, SvPV(keysv, na));
2098 if (op->op_private & OPpLVAL_INTRO)
2099 save_svref(&HeVAL(he));
2101 *MARK = he ? HeVAL(he) : &sv_undef;
2104 if (GIMME != G_ARRAY) {
2112 /* List operators. */
2117 if (GIMME != G_ARRAY) {
2119 *MARK = *SP; /* unwanted list, return last item */
2130 SV **lastrelem = stack_sp;
2131 SV **lastlelem = stack_base + POPMARK;
2132 SV **firstlelem = stack_base + POPMARK + 1;
2133 register SV **firstrelem = lastlelem + 1;
2134 I32 arybase = curcop->cop_arybase;
2135 I32 lval = op->op_flags & OPf_MOD;
2136 I32 is_something_there = lval;
2138 register I32 max = lastrelem - lastlelem;
2139 register SV **lelem;
2142 if (GIMME != G_ARRAY) {
2143 ix = SvIVx(*lastlelem);
2148 if (ix < 0 || ix >= max)
2149 *firstlelem = &sv_undef;
2151 *firstlelem = firstrelem[ix];
2157 SP = firstlelem - 1;
2161 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2167 else if (!(*lelem = firstrelem[ix]))
2172 if (ix >= max || !(*lelem = firstrelem[ix]))
2175 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2176 is_something_there = TRUE;
2178 if (is_something_there)
2181 SP = firstlelem - 1;
2187 dSP; dMARK; dORIGMARK;
2188 I32 items = SP - MARK;
2189 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2190 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2197 dSP; dMARK; dORIGMARK;
2198 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2202 SV *val = NEWSV(46, 0);
2204 sv_setsv(val, *++MARK);
2206 warn("Odd number of elements in hash list");
2207 (void)hv_store_ent(hv,key,val,0);
2216 dSP; dMARK; dORIGMARK;
2217 register AV *ary = (AV*)*++MARK;
2221 register I32 offset;
2222 register I32 length;
2231 offset = SvIVx(*MARK);
2233 offset += AvFILL(ary) + 1;
2235 offset -= curcop->cop_arybase;
2237 length = SvIVx(*MARK++);
2242 length = AvMAX(ary) + 1; /* close enough to infinity */
2246 length = AvMAX(ary) + 1;
2254 if (offset > AvFILL(ary) + 1)
2255 offset = AvFILL(ary) + 1;
2256 after = AvFILL(ary) + 1 - (offset + length);
2257 if (after < 0) { /* not that much array */
2258 length += after; /* offset+length now in array */
2264 /* At this point, MARK .. SP-1 is our new LIST */
2267 diff = newlen - length;
2269 if (diff < 0) { /* shrinking the area */
2271 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2272 Copy(MARK, tmparyval, newlen, SV*);
2275 MARK = ORIGMARK + 1;
2276 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2277 MEXTEND(MARK, length);
2278 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2280 EXTEND_MORTAL(length);
2281 for (i = length, dst = MARK; i; i--) {
2282 if (!SvIMMORTAL(*dst))
2283 sv_2mortal(*dst); /* free them eventualy */
2290 *MARK = AvARRAY(ary)[offset+length-1];
2292 if (!SvIMMORTAL(*MARK))
2294 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2295 SvREFCNT_dec(*dst++); /* free them now */
2298 AvFILL(ary) += diff;
2300 /* pull up or down? */
2302 if (offset < after) { /* easier to pull up */
2303 if (offset) { /* esp. if nothing to pull */
2304 src = &AvARRAY(ary)[offset-1];
2305 dst = src - diff; /* diff is negative */
2306 for (i = offset; i > 0; i--) /* can't trust Copy */
2310 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2314 if (after) { /* anything to pull down? */
2315 src = AvARRAY(ary) + offset + length;
2316 dst = src + diff; /* diff is negative */
2317 Move(src, dst, after, SV*);
2319 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2320 /* avoid later double free */
2324 dst[--i] = &sv_undef;
2327 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2329 *dst = NEWSV(46, 0);
2330 sv_setsv(*dst++, *src++);
2332 Safefree(tmparyval);
2335 else { /* no, expanding (or same) */
2337 New(452, tmparyval, length, SV*); /* so remember deletion */
2338 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2341 if (diff > 0) { /* expanding */
2343 /* push up or down? */
2345 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2349 Move(src, dst, offset, SV*);
2351 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2353 AvFILL(ary) += diff;
2356 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2357 av_extend(ary, AvFILL(ary) + diff);
2358 AvFILL(ary) += diff;
2361 dst = AvARRAY(ary) + AvFILL(ary);
2363 for (i = after; i; i--) {
2370 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2371 *dst = NEWSV(46, 0);
2372 sv_setsv(*dst++, *src++);
2374 MARK = ORIGMARK + 1;
2375 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2377 Copy(tmparyval, MARK, length, SV*);
2379 EXTEND_MORTAL(length);
2380 for (i = length, dst = MARK; i; i--) {
2381 if (!SvIMMORTAL(*dst))
2382 sv_2mortal(*dst); /* free them eventualy */
2386 Safefree(tmparyval);
2390 else if (length--) {
2391 *MARK = tmparyval[length];
2393 if (!SvIMMORTAL(*MARK))
2395 while (length-- > 0)
2396 SvREFCNT_dec(tmparyval[length]);
2398 Safefree(tmparyval);
2409 dSP; dMARK; dORIGMARK; dTARGET;
2410 register AV *ary = (AV*)*++MARK;
2411 register SV *sv = &sv_undef;
2413 for (++MARK; MARK <= SP; MARK++) {
2416 sv_setsv(sv, *MARK);
2420 PUSHi( AvFILL(ary) + 1 );
2428 SV *sv = av_pop(av);
2429 if (!SvIMMORTAL(sv) && AvREAL(av))
2430 (void)sv_2mortal(sv);
2439 SV *sv = av_shift(av);
2443 if (!SvIMMORTAL(sv) && AvREAL(av))
2444 (void)sv_2mortal(sv);
2451 dSP; dMARK; dORIGMARK; dTARGET;
2452 register AV *ary = (AV*)*++MARK;
2456 av_unshift(ary, SP - MARK);
2459 sv_setsv(sv, *++MARK);
2460 (void)av_store(ary, i++, sv);
2464 PUSHi( AvFILL(ary) + 1 );
2474 if (GIMME == G_ARRAY) {
2485 register char *down;
2491 do_join(TARG, &sv_no, MARK, SP);
2493 sv_setsv(TARG, *SP);
2494 up = SvPV_force(TARG, len);
2496 down = SvPVX(TARG) + len - 1;
2502 (void)SvPOK_only(TARG);
2516 char *s = SvPV(sv, len);
2520 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2521 SV *new = newSVpv("0000000000", 10);
2524 SvREFCNT_dec(sv); /* free old sv */
2529 while (!*t) /* trailing '\0'? */
2532 i = ((*t - '0') << 7) + m;
2533 *(t--) = '0' + (i % 10);
2539 /* Explosives and implosives. */
2549 register char *pat = SvPV(left, llen);
2550 register char *s = SvPV(right, rlen);
2551 char *strend = s + rlen;
2553 register char *patend = pat + llen;
2558 /* These must not be in registers: */
2569 unsigned Quad_t auquad;
2575 register U32 culong;
2577 static char* bitcount = 0;
2579 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2581 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2582 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2584 while (isDIGIT(*patend) || *patend == '*')
2590 while (pat < patend) {
2595 else if (*pat == '*') {
2596 len = strend - strbeg; /* long enough */
2599 else if (isDIGIT(*pat)) {
2601 while (isDIGIT(*pat))
2602 len = (len * 10) + (*pat++ - '0');
2605 len = (datumtype != '@');
2610 if (len == 1 && pat[-1] != '1')
2619 if (len > strend - strbeg)
2620 DIE("@ outside of string");
2624 if (len > s - strbeg)
2625 DIE("X outside of string");
2629 if (len > strend - s)
2630 DIE("x outside of string");
2635 if (len > strend - s)
2638 goto uchar_checksum;
2639 sv = NEWSV(35, len);
2640 sv_setpvn(sv, s, len);
2642 if (datumtype == 'A') {
2643 aptr = s; /* borrow register */
2644 s = SvPVX(sv) + len - 1;
2645 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2648 SvCUR_set(sv, s - SvPVX(sv));
2649 s = aptr; /* unborrow register */
2651 XPUSHs(sv_2mortal(sv));
2655 if (pat[-1] == '*' || len > (strend - s) * 8)
2656 len = (strend - s) * 8;
2659 Newz(601, bitcount, 256, char);
2660 for (bits = 1; bits < 256; bits++) {
2661 if (bits & 1) bitcount[bits]++;
2662 if (bits & 2) bitcount[bits]++;
2663 if (bits & 4) bitcount[bits]++;
2664 if (bits & 8) bitcount[bits]++;
2665 if (bits & 16) bitcount[bits]++;
2666 if (bits & 32) bitcount[bits]++;
2667 if (bits & 64) bitcount[bits]++;
2668 if (bits & 128) bitcount[bits]++;
2672 culong += bitcount[*(unsigned char*)s++];
2677 if (datumtype == 'b') {
2679 if (bits & 1) culong++;
2685 if (bits & 128) culong++;
2692 sv = NEWSV(35, len + 1);
2695 aptr = pat; /* borrow register */
2697 if (datumtype == 'b') {
2699 for (len = 0; len < aint; len++) {
2700 if (len & 7) /*SUPPRESS 595*/
2704 *pat++ = '0' + (bits & 1);
2709 for (len = 0; len < aint; len++) {
2714 *pat++ = '0' + ((bits & 128) != 0);
2718 pat = aptr; /* unborrow register */
2719 XPUSHs(sv_2mortal(sv));
2723 if (pat[-1] == '*' || len > (strend - s) * 2)
2724 len = (strend - s) * 2;
2725 sv = NEWSV(35, len + 1);
2728 aptr = pat; /* borrow register */
2730 if (datumtype == 'h') {
2732 for (len = 0; len < aint; len++) {
2737 *pat++ = hexdigit[bits & 15];
2742 for (len = 0; len < aint; len++) {
2747 *pat++ = hexdigit[(bits >> 4) & 15];
2751 pat = aptr; /* unborrow register */
2752 XPUSHs(sv_2mortal(sv));
2755 if (len > strend - s)
2760 if (aint >= 128) /* fake up signed chars */
2770 if (aint >= 128) /* fake up signed chars */
2773 sv_setiv(sv, (IV)aint);
2774 PUSHs(sv_2mortal(sv));
2779 if (len > strend - s)
2794 sv_setiv(sv, (IV)auint);
2795 PUSHs(sv_2mortal(sv));
2800 along = (strend - s) / sizeof(I16);
2805 Copy(s, &ashort, 1, I16);
2814 Copy(s, &ashort, 1, I16);
2817 sv_setiv(sv, (IV)ashort);
2818 PUSHs(sv_2mortal(sv));
2825 along = (strend - s) / sizeof(U16);
2830 Copy(s, &aushort, 1, U16);
2833 if (datumtype == 'n')
2834 aushort = ntohs(aushort);
2837 if (datumtype == 'v')
2838 aushort = vtohs(aushort);
2847 Copy(s, &aushort, 1, U16);
2851 if (datumtype == 'n')
2852 aushort = ntohs(aushort);
2855 if (datumtype == 'v')
2856 aushort = vtohs(aushort);
2858 sv_setiv(sv, (IV)aushort);
2859 PUSHs(sv_2mortal(sv));
2864 along = (strend - s) / sizeof(int);
2869 Copy(s, &aint, 1, int);
2872 cdouble += (double)aint;
2881 Copy(s, &aint, 1, int);
2884 sv_setiv(sv, (IV)aint);
2885 PUSHs(sv_2mortal(sv));
2890 along = (strend - s) / sizeof(unsigned int);
2895 Copy(s, &auint, 1, unsigned int);
2896 s += sizeof(unsigned int);
2898 cdouble += (double)auint;
2907 Copy(s, &auint, 1, unsigned int);
2908 s += sizeof(unsigned int);
2910 sv_setuv(sv, (UV)auint);
2911 PUSHs(sv_2mortal(sv));
2916 along = (strend - s) / sizeof(I32);
2921 Copy(s, &along, 1, I32);
2924 cdouble += (double)along;
2933 Copy(s, &along, 1, I32);
2936 sv_setiv(sv, (IV)along);
2937 PUSHs(sv_2mortal(sv));
2944 along = (strend - s) / sizeof(U32);
2949 Copy(s, &aulong, 1, U32);
2952 if (datumtype == 'N')
2953 aulong = ntohl(aulong);
2956 if (datumtype == 'V')
2957 aulong = vtohl(aulong);
2960 cdouble += (double)aulong;
2969 Copy(s, &aulong, 1, U32);
2972 if (datumtype == 'N')
2973 aulong = ntohl(aulong);
2976 if (datumtype == 'V')
2977 aulong = vtohl(aulong);
2980 sv_setuv(sv, (UV)aulong);
2981 PUSHs(sv_2mortal(sv));
2986 along = (strend - s) / sizeof(char*);
2992 if (sizeof(char*) > strend - s)
2995 Copy(s, &aptr, 1, char*);
3001 PUSHs(sv_2mortal(sv));
3011 while ((len > 0) && (s < strend)) {
3012 auv = (auv << 7) | (*s & 0x7f);
3013 if (!(*s++ & 0x80)) {
3017 PUSHs(sv_2mortal(sv));
3021 else if (++bytes >= sizeof(UV)) { /* promote to string */
3022 char decn[sizeof(UV) * 3 + 1];
3025 (void) sprintf(decn, "%0*ld",
3026 (int)sizeof(decn) - 1, auv);
3027 sv = newSVpv(decn, 0);
3028 while (s < strend) {
3029 sv = mul128(sv, *s & 0x7f);
3030 if (!(*s++ & 0x80)) {
3039 PUSHs(sv_2mortal(sv));
3044 if ((s >= strend) && bytes)
3045 croak("Unterminated compressed integer");
3050 if (sizeof(char*) > strend - s)
3053 Copy(s, &aptr, 1, char*);
3058 sv_setpvn(sv, aptr, len);
3059 PUSHs(sv_2mortal(sv));
3066 if (s + sizeof(Quad_t) > strend)
3069 Copy(s, &aquad, 1, Quad_t);
3070 s += sizeof(Quad_t);
3073 sv_setiv(sv, (IV)aquad);
3074 PUSHs(sv_2mortal(sv));
3081 if (s + sizeof(unsigned Quad_t) > strend)
3084 Copy(s, &auquad, 1, unsigned Quad_t);
3085 s += sizeof(unsigned Quad_t);
3088 sv_setuv(sv, (UV)auquad);
3089 PUSHs(sv_2mortal(sv));
3093 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3096 along = (strend - s) / sizeof(float);
3101 Copy(s, &afloat, 1, float);
3110 Copy(s, &afloat, 1, float);
3113 sv_setnv(sv, (double)afloat);
3114 PUSHs(sv_2mortal(sv));
3120 along = (strend - s) / sizeof(double);
3125 Copy(s, &adouble, 1, double);
3126 s += sizeof(double);
3134 Copy(s, &adouble, 1, double);
3135 s += sizeof(double);
3137 sv_setnv(sv, (double)adouble);
3138 PUSHs(sv_2mortal(sv));
3143 along = (strend - s) * 3 / 4;
3144 sv = NEWSV(42, along);
3147 while (s < strend && *s > ' ' && *s < 'a') {
3152 len = (*s++ - ' ') & 077;
3154 if (s < strend && *s >= ' ')
3155 a = (*s++ - ' ') & 077;
3158 if (s < strend && *s >= ' ')
3159 b = (*s++ - ' ') & 077;
3162 if (s < strend && *s >= ' ')
3163 c = (*s++ - ' ') & 077;
3166 if (s < strend && *s >= ' ')
3167 d = (*s++ - ' ') & 077;
3170 hunk[0] = a << 2 | b >> 4;
3171 hunk[1] = b << 4 | c >> 2;
3172 hunk[2] = c << 6 | d;
3173 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3178 else if (s[1] == '\n') /* possible checksum byte */
3181 XPUSHs(sv_2mortal(sv));
3186 if (strchr("fFdD", datumtype) ||
3187 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3191 while (checksum >= 16) {
3195 while (checksum >= 4) {
3201 along = (1 << checksum) - 1;
3202 while (cdouble < 0.0)
3204 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3205 sv_setnv(sv, cdouble);
3208 if (checksum < 32) {
3209 along = (1 << checksum) - 1;
3210 culong &= (U32)along;
3212 sv_setnv(sv, (double)culong);
3214 XPUSHs(sv_2mortal(sv));
3218 if (sp == oldsp && GIMME != G_ARRAY)
3224 doencodes(sv, s, len)
3232 sv_catpvn(sv, hunk, 1);
3235 hunk[0] = ' ' + (077 & (*s >> 2));
3236 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3237 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3238 hunk[3] = ' ' + (077 & (s[2] & 077));
3239 sv_catpvn(sv, hunk, 4);
3243 for (s = SvPVX(sv); *s; s++) {
3247 sv_catpvn(sv, "\n", 1);
3255 SV *result = newSVpv("", l);
3256 char *result_c = SvPV(result, na); /* convenience */
3257 char *out = result_c;
3267 SvREFCNT_dec(result);
3290 SvREFCNT_dec(result);
3296 SvCUR_set(result, out - result_c);
3302 SV *pnum; /* must be '\0' terminated */
3306 char *s = SvPV(pnum, len);
3315 i = m * 10 + (*t - '0');
3317 r = (i >> 7); /* r < 10 */
3324 SvCUR_set(pnum, (STRLEN) (t - s));
3331 dSP; dMARK; dORIGMARK; dTARGET;
3332 register SV *cat = TARG;
3335 register char *pat = SvPVx(*++MARK, fromlen);
3336 register char *patend = pat + fromlen;
3341 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3342 static char *space10 = " ";
3344 /* These must not be in registers: */
3353 unsigned Quad_t auquad;
3361 sv_setpvn(cat, "", 0);
3362 while (pat < patend) {
3363 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3366 len = strchr("@Xxu", datumtype) ? 0 : items;
3369 else if (isDIGIT(*pat)) {
3371 while (isDIGIT(*pat))
3372 len = (len * 10) + (*pat++ - '0');
3380 DIE("%% may only be used in unpack");
3391 if (SvCUR(cat) < len)
3392 DIE("X outside of string");
3399 sv_catpvn(cat, null10, 10);
3402 sv_catpvn(cat, null10, len);
3407 aptr = SvPV(fromstr, fromlen);
3411 sv_catpvn(cat, aptr, len);
3413 sv_catpvn(cat, aptr, fromlen);
3415 if (datumtype == 'A') {
3417 sv_catpvn(cat, space10, 10);
3420 sv_catpvn(cat, space10, len);
3424 sv_catpvn(cat, null10, 10);
3427 sv_catpvn(cat, null10, len);
3434 char *savepat = pat;
3439 aptr = SvPV(fromstr, fromlen);
3444 SvCUR(cat) += (len+7)/8;
3445 SvGROW(cat, SvCUR(cat) + 1);
3446 aptr = SvPVX(cat) + aint;
3451 if (datumtype == 'B') {
3452 for (len = 0; len++ < aint;) {
3453 items |= *pat++ & 1;
3457 *aptr++ = items & 0xff;
3463 for (len = 0; len++ < aint;) {
3469 *aptr++ = items & 0xff;
3475 if (datumtype == 'B')
3476 items <<= 7 - (aint & 7);
3478 items >>= 7 - (aint & 7);
3479 *aptr++ = items & 0xff;
3481 pat = SvPVX(cat) + SvCUR(cat);
3492 char *savepat = pat;
3497 aptr = SvPV(fromstr, fromlen);
3502 SvCUR(cat) += (len+1)/2;
3503 SvGROW(cat, SvCUR(cat) + 1);
3504 aptr = SvPVX(cat) + aint;
3509 if (datumtype == 'H') {
3510 for (len = 0; len++ < aint;) {
3512 items |= ((*pat++ & 15) + 9) & 15;
3514 items |= *pat++ & 15;
3518 *aptr++ = items & 0xff;
3524 for (len = 0; len++ < aint;) {
3526 items |= (((*pat++ & 15) + 9) & 15) << 4;
3528 items |= (*pat++ & 15) << 4;
3532 *aptr++ = items & 0xff;
3538 *aptr++ = items & 0xff;
3539 pat = SvPVX(cat) + SvCUR(cat);
3551 aint = SvIV(fromstr);
3553 sv_catpvn(cat, &achar, sizeof(char));
3556 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3561 afloat = (float)SvNV(fromstr);
3562 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3569 adouble = (double)SvNV(fromstr);
3570 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3576 ashort = (I16)SvIV(fromstr);
3578 ashort = htons(ashort);
3580 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3586 ashort = (I16)SvIV(fromstr);
3588 ashort = htovs(ashort);
3590 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3597 ashort = (I16)SvIV(fromstr);
3598 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3604 auint = U_I(SvNV(fromstr));
3605 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3611 adouble = floor(SvNV(fromstr));
3614 croak("Cannot compress negative numbers");
3616 if (adouble <= UV_MAX) {
3617 char buf[1 + sizeof(UV)];
3618 char *in = buf + sizeof(buf);
3619 UV auv = U_V(adouble);;
3622 *--in = (auv & 0x7f) | 0x80;
3625 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3626 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3628 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3629 char *from, *result, *in;
3634 /* Copy string and check for compliance */
3635 from = SvPV(fromstr, len);
3636 if ((norm = is_an_int(from, len)) == NULL)
3637 croak("can compress only unsigned integer");
3639 New('w', result, len, char);
3643 *--in = div128(norm, &done) | 0x80;
3644 result[len - 1] &= 0x7F; /* clear continue bit */
3645 sv_catpvn(cat, in, (result + len) - in);
3647 SvREFCNT_dec(norm); /* free norm */
3649 else if (SvNOKp(fromstr)) {
3650 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3651 char *in = buf + sizeof(buf);
3654 double next = floor(adouble / 128);
3655 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3656 if (--in < buf) /* this cannot happen ;-) */
3657 croak ("Cannot compress integer");
3659 } while (adouble > 0);
3660 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3661 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3664 croak("Cannot compress non integer");
3670 aint = SvIV(fromstr);
3671 sv_catpvn(cat, (char*)&aint, sizeof(int));
3677 aulong = U_L(SvNV(fromstr));
3679 aulong = htonl(aulong);
3681 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3687 aulong = U_L(SvNV(fromstr));
3689 aulong = htovl(aulong);
3691 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3697 aulong = U_L(SvNV(fromstr));
3698 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3704 along = SvIV(fromstr);
3705 sv_catpvn(cat, (char*)&along, sizeof(I32));
3712 auquad = (unsigned Quad_t)SvIV(fromstr);
3713 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3719 aquad = (Quad_t)SvIV(fromstr);
3720 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3723 #endif /* HAS_QUAD */
3725 len = 1; /* assume SV is correct length */
3730 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3731 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3736 aptr = SvPV(fromstr, fromlen);
3737 SvGROW(cat, fromlen * 4 / 3);
3742 while (fromlen > 0) {
3749 doencodes(cat, aptr, todo);
3767 register I32 limit = POPi; /* note, negative is forever */
3770 register char *s = SvPV(sv, len);
3771 char *strend = s + len;
3773 register REGEXP *rx;
3777 I32 maxiters = (strend - s) + 10;
3780 I32 origlimit = limit;
3783 AV *oldstack = curstack;
3785 I32 oldsave = savestack_ix;
3788 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3793 DIE("panic: do_split");
3794 rx = pm->op_pmregexp;
3796 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3797 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3799 if (pm->op_pmreplroot)
3800 ary = GvAVn((GV*)pm->op_pmreplroot);
3801 else if (gimme != G_ARRAY)
3805 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3809 for (i = AvFILL(ary); i >= 0; i--)
3810 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3814 /* temporarily switch stacks */
3815 SWITCHSTACK(curstack, ary);
3817 base = SP - stack_base;
3819 if (pm->op_pmflags & PMf_SKIPWHITE) {
3820 if (pm->op_pmflags & PMf_LOCALE) {
3821 while (isSPACE_LC(*s))
3829 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3831 multiline = pm->op_pmflags & PMf_MULTILINE;
3835 limit = maxiters + 2;
3836 if (pm->op_pmflags & PMf_WHITE) {
3839 while (m < strend &&
3840 !((pm->op_pmflags & PMf_LOCALE)
3841 ? isSPACE_LC(*m) : isSPACE(*m)))
3846 dstr = NEWSV(30, m-s);
3847 sv_setpvn(dstr, s, m-s);
3853 while (s < strend &&
3854 ((pm->op_pmflags & PMf_LOCALE)
3855 ? isSPACE_LC(*s) : isSPACE(*s)))
3859 else if (strEQ("^", rx->precomp)) {
3862 for (m = s; m < strend && *m != '\n'; m++) ;
3866 dstr = NEWSV(30, m-s);
3867 sv_setpvn(dstr, s, m-s);
3874 else if (pm->op_pmshort && !rx->nparens) {
3875 i = SvCUR(pm->op_pmshort);
3877 i = *SvPVX(pm->op_pmshort);
3880 for (m = s; m < strend && *m != i; m++) ;
3883 dstr = NEWSV(30, m-s);
3884 sv_setpvn(dstr, s, m-s);
3893 while (s < strend && --limit &&
3894 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3898 dstr = NEWSV(31, m-s);
3899 sv_setpvn(dstr, s, m-s);
3908 maxiters += (strend - s) * rx->nparens;
3909 while (s < strend && --limit &&
3910 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3912 TAINT_IF(rx->exec_tainted);
3914 && rx->subbase != orig) {
3919 strend = s + (strend - m);
3922 dstr = NEWSV(32, m-s);
3923 sv_setpvn(dstr, s, m-s);
3928 for (i = 1; i <= rx->nparens; i++) {
3932 dstr = NEWSV(33, m-s);
3933 sv_setpvn(dstr, s, m-s);
3936 dstr = NEWSV(33, 0);
3945 LEAVE_SCOPE(oldsave);
3946 iters = (SP - stack_base) - base;
3947 if (iters > maxiters)
3950 /* keep field after final delim? */
3951 if (s < strend || (iters && origlimit)) {
3952 dstr = NEWSV(34, strend-s);
3953 sv_setpvn(dstr, s, strend-s);
3959 else if (!origlimit) {
3960 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3964 SWITCHSTACK(ary, oldstack);
3965 if (gimme == G_ARRAY) {
3967 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3973 if (gimme == G_ARRAY)
3976 if (iters || !pm->op_pmreplroot) {