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);
694 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
696 right = (i < 0) ? -i : i;
700 right = U_V((n < 0) ? -n : n);
703 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
705 left = (negate = (i < 0)) ? -i : i;
709 left = U_V((negate = (n < 0)) ? -n : n);
713 DIE("Illegal modulus zero");
725 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
727 register I32 count = POPi;
728 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
730 I32 items = SP - MARK;
742 repeatcpy((char*)(MARK + items), (char*)MARK,
743 items * sizeof(SV*), count - 1);
749 else { /* Note: mark already snarfed by pp_list */
754 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
755 if (SvREADONLY(tmpstr) && curcop != &compiling)
756 DIE("Can't x= to readonly value");
760 SvSetSV(TARG, tmpstr);
761 SvPV_force(TARG, len);
766 SvGROW(TARG, (count * len) + 1);
767 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
768 SvCUR(TARG) *= count;
772 (void)SvPOK_only(TARG);
781 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
784 SETn( left - right );
791 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
794 if (op->op_private & HINT_INTEGER) {
808 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
811 if (op->op_private & HINT_INTEGER) {
825 dSP; tryAMAGICbinSET(lt,0);
828 SETs((TOPn < value) ? &sv_yes : &sv_no);
835 dSP; tryAMAGICbinSET(gt,0);
838 SETs((TOPn > value) ? &sv_yes : &sv_no);
845 dSP; tryAMAGICbinSET(le,0);
848 SETs((TOPn <= value) ? &sv_yes : &sv_no);
855 dSP; tryAMAGICbinSET(ge,0);
858 SETs((TOPn >= value) ? &sv_yes : &sv_no);
865 dSP; tryAMAGICbinSET(ne,0);
868 SETs((TOPn != value) ? &sv_yes : &sv_no);
875 dSP; dTARGET; tryAMAGICbin(ncmp,0);
882 else if (left < right)
884 else if (left > right)
897 dSP; tryAMAGICbinSET(slt,0);
900 int cmp = ((op->op_private & OPpLOCALE)
901 ? sv_cmp_locale(left, right)
902 : sv_cmp(left, right));
903 SETs( cmp < 0 ? &sv_yes : &sv_no );
910 dSP; tryAMAGICbinSET(sgt,0);
913 int cmp = ((op->op_private & OPpLOCALE)
914 ? sv_cmp_locale(left, right)
915 : sv_cmp(left, right));
916 SETs( cmp > 0 ? &sv_yes : &sv_no );
923 dSP; tryAMAGICbinSET(sle,0);
926 int cmp = ((op->op_private & OPpLOCALE)
927 ? sv_cmp_locale(left, right)
928 : sv_cmp(left, right));
929 SETs( cmp <= 0 ? &sv_yes : &sv_no );
936 dSP; tryAMAGICbinSET(sge,0);
939 int cmp = ((op->op_private & OPpLOCALE)
940 ? sv_cmp_locale(left, right)
941 : sv_cmp(left, right));
942 SETs( cmp >= 0 ? &sv_yes : &sv_no );
949 dSP; tryAMAGICbinSET(seq,0);
952 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
959 dSP; tryAMAGICbinSET(sne,0);
962 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
969 dSP; dTARGET; tryAMAGICbin(scmp,0);
972 int cmp = ((op->op_private & OPpLOCALE)
973 ? sv_cmp_locale(left, right)
974 : sv_cmp(left, right));
982 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
985 if (SvNIOKp(left) || SvNIOKp(right)) {
986 if (op->op_private & HINT_INTEGER) {
987 IBW value = SvIV(left) & SvIV(right);
991 UBW value = SvUV(left) & SvUV(right);
996 do_vop(op->op_type, TARG, left, right);
1005 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1008 if (SvNIOKp(left) || SvNIOKp(right)) {
1009 if (op->op_private & HINT_INTEGER) {
1010 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1014 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1019 do_vop(op->op_type, TARG, left, right);
1028 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1031 if (SvNIOKp(left) || SvNIOKp(right)) {
1032 if (op->op_private & HINT_INTEGER) {
1033 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1037 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1042 do_vop(op->op_type, TARG, left, right);
1051 dSP; dTARGET; tryAMAGICun(neg);
1056 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1058 else if (SvNIOKp(sv))
1060 else if (SvPOKp(sv)) {
1062 char *s = SvPV(sv, len);
1063 if (isIDFIRST(*s)) {
1064 sv_setpvn(TARG, "-", 1);
1067 else if (*s == '+' || *s == '-') {
1069 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1072 sv_setnv(TARG, -SvNV(sv));
1084 dSP; tryAMAGICunSET(not);
1085 #endif /* OVERLOAD */
1086 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1092 dSP; dTARGET; tryAMAGICun(compl);
1096 if (op->op_private & HINT_INTEGER) {
1097 IBW value = ~SvIV(sv);
1101 UBW value = ~SvUV(sv);
1106 register char *tmps;
1107 register long *tmpl;
1112 tmps = SvPV_force(TARG, len);
1115 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1118 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1122 for ( ; anum > 0; anum--, tmps++)
1131 /* integer versions of some of the above */
1135 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1138 SETi( left * right );
1145 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1149 DIE("Illegal division by zero");
1150 value = POPi / value;
1158 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1162 DIE("Illegal modulus zero");
1163 SETi( left % right );
1170 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1173 SETi( left + right );
1180 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1183 SETi( left - right );
1190 dSP; tryAMAGICbinSET(lt,0);
1193 SETs((left < right) ? &sv_yes : &sv_no);
1200 dSP; tryAMAGICbinSET(gt,0);
1203 SETs((left > right) ? &sv_yes : &sv_no);
1210 dSP; tryAMAGICbinSET(le,0);
1213 SETs((left <= right) ? &sv_yes : &sv_no);
1220 dSP; tryAMAGICbinSET(ge,0);
1223 SETs((left >= right) ? &sv_yes : &sv_no);
1230 dSP; tryAMAGICbinSET(eq,0);
1233 SETs((left == right) ? &sv_yes : &sv_no);
1240 dSP; tryAMAGICbinSET(ne,0);
1243 SETs((left != right) ? &sv_yes : &sv_no);
1250 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1257 else if (left < right)
1268 dSP; dTARGET; tryAMAGICun(neg);
1273 /* High falutin' math. */
1277 dSP; dTARGET; tryAMAGICbin(atan2,0);
1280 SETn(atan2(left, right));
1287 dSP; dTARGET; tryAMAGICun(sin);
1299 dSP; dTARGET; tryAMAGICun(cos);
1319 if (!srand_called) {
1320 (void)srand((unsigned)seed());
1321 srand_called = TRUE;
1324 value = rand() * value / 2147483648.0;
1327 value = rand() * value / 65536.0;
1330 value = rand() * value / 32768.0;
1332 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1348 (void)srand((unsigned)anum);
1349 srand_called = TRUE;
1359 # include <starlet.h>
1360 unsigned int when[2];
1361 _ckvmssts(sys$gettim(when));
1362 u = when[0] ^ when[1];
1364 # ifdef HAS_GETTIMEOFDAY
1365 struct timeval when;
1366 gettimeofday(&when,(struct timezone *) 0);
1367 u = when.tv_sec ^ when.tv_usec;
1374 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1375 /* What is a good hashing algorithm here? */
1376 u ^= ( ( 269 * (U32)getpid())
1377 ^ (26107 * (U32)&when)
1378 ^ (73819 * (U32)stack_sp));
1385 dSP; dTARGET; tryAMAGICun(exp);
1397 dSP; dTARGET; tryAMAGICun(log);
1402 SET_NUMERIC_STANDARD();
1403 DIE("Can't take log of %g", value);
1413 dSP; dTARGET; tryAMAGICun(sqrt);
1418 SET_NUMERIC_STANDARD();
1419 DIE("Can't take sqrt of %g", value);
1421 value = sqrt(value);
1431 double value = TOPn;
1434 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1440 (void)modf(value, &value);
1442 (void)modf(-value, &value);
1457 dSP; dTARGET; tryAMAGICun(abs);
1459 double value = TOPn;
1462 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1463 (iv = SvIVX(TOPs)) != IV_MIN) {
1484 XPUSHu(scan_hex(tmps, 99, &argtype));
1496 while (*tmps && isSPACE(*tmps))
1501 value = scan_hex(++tmps, 99, &argtype);
1503 value = scan_oct(tmps, 99, &argtype);
1513 SETi( sv_len(TOPs) );
1525 I32 lvalue = op->op_flags & OPf_MOD;
1527 I32 arybase = curcop->cop_arybase;
1531 pos = POPi - arybase;
1533 tmps = SvPV(sv, curlen);
1535 pos += curlen + arybase;
1536 if (pos < 0 && MAXARG < 3)
1539 if (pos < 0 || pos > curlen) {
1540 if (dowarn || lvalue)
1541 warn("substr outside of string");
1548 len += curlen - pos;
1553 rem = curlen - pos; /* rem=how many bytes left*/
1556 sv_setpvn(TARG, tmps, rem);
1557 if (lvalue) { /* it's an lvalue! */
1558 if (!SvGMAGICAL(sv)) {
1562 warn("Attempt to use reference as lvalue in substr");
1564 if (SvOK(sv)) /* is it defined ? */
1565 (void)SvPOK_only(sv);
1567 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1570 if (SvTYPE(TARG) < SVt_PVLV) {
1571 sv_upgrade(TARG, SVt_PVLV);
1572 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1577 LvTARGOFF(TARG) = pos;
1578 LvTARGLEN(TARG) = rem;
1581 PUSHs(TARG); /* avoid SvSETMAGIC here */
1588 register I32 size = POPi;
1589 register I32 offset = POPi;
1590 register SV *src = POPs;
1591 I32 lvalue = op->op_flags & OPf_MOD;
1593 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1594 unsigned long retnum;
1597 offset *= size; /* turn into bit offset */
1598 len = (offset + size + 7) / 8;
1599 if (offset < 0 || size < 1)
1602 if (lvalue) { /* it's an lvalue! */
1603 if (SvTYPE(TARG) < SVt_PVLV) {
1604 sv_upgrade(TARG, SVt_PVLV);
1605 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1610 LvTARGOFF(TARG) = offset;
1611 LvTARGLEN(TARG) = size;
1619 if (offset >= srclen)
1622 retnum = (unsigned long) s[offset] << 8;
1624 else if (size == 32) {
1625 if (offset >= srclen)
1627 else if (offset + 1 >= srclen)
1628 retnum = (unsigned long) s[offset] << 24;
1629 else if (offset + 2 >= srclen)
1630 retnum = ((unsigned long) s[offset] << 24) +
1631 ((unsigned long) s[offset + 1] << 16);
1633 retnum = ((unsigned long) s[offset] << 24) +
1634 ((unsigned long) s[offset + 1] << 16) +
1635 (s[offset + 2] << 8);
1640 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1645 else if (size == 16)
1646 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1647 else if (size == 32)
1648 retnum = ((unsigned long) s[offset] << 24) +
1649 ((unsigned long) s[offset + 1] << 16) +
1650 (s[offset + 2] << 8) + s[offset+3];
1654 sv_setiv(TARG, (IV)retnum);
1669 I32 arybase = curcop->cop_arybase;
1674 offset = POPi - arybase;
1677 tmps = SvPV(big, biglen);
1680 else if (offset > biglen)
1682 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1683 (unsigned char*)tmps + biglen, little)))
1684 retval = -1 + arybase;
1686 retval = tmps2 - tmps + arybase;
1703 I32 arybase = curcop->cop_arybase;
1709 tmps2 = SvPV(little, llen);
1710 tmps = SvPV(big, blen);
1714 offset = SvIV(offstr) - arybase + llen;
1717 else if (offset > blen)
1719 if (!(tmps2 = rninstr(tmps, tmps + offset,
1720 tmps2, tmps2 + llen)))
1721 retval = -1 + arybase;
1723 retval = tmps2 - tmps + arybase;
1730 dSP; dMARK; dORIGMARK; dTARGET;
1731 #ifdef USE_LOCALE_NUMERIC
1732 if (op->op_private & OPpLOCALE)
1733 SET_NUMERIC_LOCAL();
1735 SET_NUMERIC_STANDARD();
1737 do_sprintf(TARG, SP-MARK, MARK+1);
1738 TAINT_IF(SvTAINTED(TARG));
1752 value = (I32) (*tmps & 255);
1757 value = (I32) (anum & 255);
1768 (void)SvUPGRADE(TARG,SVt_PV);
1774 (void)SvPOK_only(TARG);
1781 dSP; dTARGET; dPOPTOPssrl;
1783 char *tmps = SvPV(left, na);
1785 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1787 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1791 "The crypt() function is unimplemented due to excessive paranoia.");
1803 if (!SvPADTMP(sv)) {
1809 s = SvPV_force(sv, na);
1811 if (op->op_private & OPpLOCALE) {
1814 *s = toUPPER_LC(*s);
1829 if (!SvPADTMP(sv)) {
1835 s = SvPV_force(sv, na);
1837 if (op->op_private & OPpLOCALE) {
1840 *s = toLOWER_LC(*s);
1857 if (!SvPADTMP(sv)) {
1864 s = SvPV_force(sv, len);
1866 register char *send = s + len;
1868 if (op->op_private & OPpLOCALE) {
1871 for (; s < send; s++)
1872 *s = toUPPER_LC(*s);
1875 for (; s < send; s++)
1889 if (!SvPADTMP(sv)) {
1896 s = SvPV_force(sv, len);
1898 register char *send = s + len;
1900 if (op->op_private & OPpLOCALE) {
1903 for (; s < send; s++)
1904 *s = toLOWER_LC(*s);
1907 for (; s < send; s++)
1919 register char *s = SvPV(sv,len);
1923 (void)SvUPGRADE(TARG, SVt_PV);
1924 SvGROW(TARG, (len * 2) + 1);
1932 SvCUR_set(TARG, d - SvPVX(TARG));
1933 (void)SvPOK_only(TARG);
1936 sv_setpvn(TARG, s, len);
1945 dSP; dMARK; dORIGMARK;
1947 register AV* av = (AV*)POPs;
1948 register I32 lval = op->op_flags & OPf_MOD;
1949 I32 arybase = curcop->cop_arybase;
1952 if (SvTYPE(av) == SVt_PVAV) {
1953 if (lval && op->op_private & OPpLVAL_INTRO) {
1955 for (svp = mark + 1; svp <= sp; svp++) {
1960 if (max > AvMAX(av))
1963 while (++MARK <= SP) {
1964 elem = SvIVx(*MARK);
1968 svp = av_fetch(av, elem, lval);
1970 if (!svp || *svp == &sv_undef)
1971 DIE(no_aelem, elem);
1972 if (op->op_private & OPpLVAL_INTRO)
1975 *MARK = svp ? *svp : &sv_undef;
1978 if (GIMME != G_ARRAY) {
1986 /* Associative arrays. */
1991 HV *hash = (HV*)POPs;
1995 entry = hv_iternext(hash); /* might clobber stack_sp */
2000 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2001 if (GIMME == G_ARRAY) {
2003 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
2008 else if (GIMME == G_SCALAR)
2030 if (op->op_private & OPpSLICE) {
2033 if (SvTYPE(hv) != SVt_PVHV)
2034 DIE("Not a HASH reference");
2035 while (++MARK <= SP) {
2036 sv = hv_delete_ent(hv, *MARK,
2037 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2038 *MARK = sv ? sv : &sv_undef;
2040 if (GIMME != G_ARRAY) {
2049 if (SvTYPE(hv) != SVt_PVHV)
2050 DIE("Not a HASH reference");
2051 sv = hv_delete_ent(hv, keysv,
2052 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2066 if (SvTYPE(hv) != SVt_PVHV) {
2067 DIE("Not a HASH reference");
2069 if (hv_exists_ent(hv, tmpsv, 0))
2076 dSP; dMARK; dORIGMARK;
2078 register HV *hv = (HV*)POPs;
2079 register I32 lval = op->op_flags & OPf_MOD;
2081 if (SvTYPE(hv) == SVt_PVHV) {
2082 while (++MARK <= SP) {
2085 he = hv_fetch_ent(hv, keysv, lval, 0);
2087 if (!he || HeVAL(he) == &sv_undef)
2088 DIE(no_helem, SvPV(keysv, na));
2089 if (op->op_private & OPpLVAL_INTRO)
2090 save_svref(&HeVAL(he));
2092 *MARK = he ? HeVAL(he) : &sv_undef;
2095 if (GIMME != G_ARRAY) {
2103 /* List operators. */
2108 if (GIMME != G_ARRAY) {
2110 *MARK = *SP; /* unwanted list, return last item */
2121 SV **lastrelem = stack_sp;
2122 SV **lastlelem = stack_base + POPMARK;
2123 SV **firstlelem = stack_base + POPMARK + 1;
2124 register SV **firstrelem = lastlelem + 1;
2125 I32 arybase = curcop->cop_arybase;
2126 I32 lval = op->op_flags & OPf_MOD;
2127 I32 is_something_there = lval;
2129 register I32 max = lastrelem - lastlelem;
2130 register SV **lelem;
2133 if (GIMME != G_ARRAY) {
2134 ix = SvIVx(*lastlelem);
2139 if (ix < 0 || ix >= max)
2140 *firstlelem = &sv_undef;
2142 *firstlelem = firstrelem[ix];
2148 SP = firstlelem - 1;
2152 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2158 else if (!(*lelem = firstrelem[ix]))
2163 if (ix >= max || !(*lelem = firstrelem[ix]))
2166 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2167 is_something_there = TRUE;
2169 if (is_something_there)
2172 SP = firstlelem - 1;
2178 dSP; dMARK; dORIGMARK;
2179 I32 items = SP - MARK;
2180 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2181 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2188 dSP; dMARK; dORIGMARK;
2189 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2193 SV *val = NEWSV(46, 0);
2195 sv_setsv(val, *++MARK);
2197 warn("Odd number of elements in hash list");
2198 (void)hv_store_ent(hv,key,val,0);
2207 dSP; dMARK; dORIGMARK;
2208 register AV *ary = (AV*)*++MARK;
2212 register I32 offset;
2213 register I32 length;
2222 offset = SvIVx(*MARK);
2224 offset += AvFILL(ary) + 1;
2226 offset -= curcop->cop_arybase;
2228 length = SvIVx(*MARK++);
2233 length = AvMAX(ary) + 1; /* close enough to infinity */
2237 length = AvMAX(ary) + 1;
2245 if (offset > AvFILL(ary) + 1)
2246 offset = AvFILL(ary) + 1;
2247 after = AvFILL(ary) + 1 - (offset + length);
2248 if (after < 0) { /* not that much array */
2249 length += after; /* offset+length now in array */
2255 /* At this point, MARK .. SP-1 is our new LIST */
2258 diff = newlen - length;
2260 if (diff < 0) { /* shrinking the area */
2262 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2263 Copy(MARK, tmparyval, newlen, SV*);
2266 MARK = ORIGMARK + 1;
2267 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2268 MEXTEND(MARK, length);
2269 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2271 EXTEND_MORTAL(length);
2272 for (i = length, dst = MARK; i; i--) {
2273 if (!SvIMMORTAL(*dst))
2274 sv_2mortal(*dst); /* free them eventualy */
2281 *MARK = AvARRAY(ary)[offset+length-1];
2283 if (!SvIMMORTAL(*MARK))
2285 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2286 SvREFCNT_dec(*dst++); /* free them now */
2289 AvFILL(ary) += diff;
2291 /* pull up or down? */
2293 if (offset < after) { /* easier to pull up */
2294 if (offset) { /* esp. if nothing to pull */
2295 src = &AvARRAY(ary)[offset-1];
2296 dst = src - diff; /* diff is negative */
2297 for (i = offset; i > 0; i--) /* can't trust Copy */
2301 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2305 if (after) { /* anything to pull down? */
2306 src = AvARRAY(ary) + offset + length;
2307 dst = src + diff; /* diff is negative */
2308 Move(src, dst, after, SV*);
2310 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2311 /* avoid later double free */
2315 dst[--i] = &sv_undef;
2318 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2320 *dst = NEWSV(46, 0);
2321 sv_setsv(*dst++, *src++);
2323 Safefree(tmparyval);
2326 else { /* no, expanding (or same) */
2328 New(452, tmparyval, length, SV*); /* so remember deletion */
2329 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2332 if (diff > 0) { /* expanding */
2334 /* push up or down? */
2336 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2340 Move(src, dst, offset, SV*);
2342 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2344 AvFILL(ary) += diff;
2347 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2348 av_extend(ary, AvFILL(ary) + diff);
2349 AvFILL(ary) += diff;
2352 dst = AvARRAY(ary) + AvFILL(ary);
2354 for (i = after; i; i--) {
2361 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2362 *dst = NEWSV(46, 0);
2363 sv_setsv(*dst++, *src++);
2365 MARK = ORIGMARK + 1;
2366 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2368 Copy(tmparyval, MARK, length, SV*);
2370 EXTEND_MORTAL(length);
2371 for (i = length, dst = MARK; i; i--) {
2372 if (!SvIMMORTAL(*dst))
2373 sv_2mortal(*dst); /* free them eventualy */
2377 Safefree(tmparyval);
2381 else if (length--) {
2382 *MARK = tmparyval[length];
2384 if (!SvIMMORTAL(*MARK))
2386 while (length-- > 0)
2387 SvREFCNT_dec(tmparyval[length]);
2389 Safefree(tmparyval);
2400 dSP; dMARK; dORIGMARK; dTARGET;
2401 register AV *ary = (AV*)*++MARK;
2402 register SV *sv = &sv_undef;
2404 for (++MARK; MARK <= SP; MARK++) {
2407 sv_setsv(sv, *MARK);
2411 PUSHi( AvFILL(ary) + 1 );
2419 SV *sv = av_pop(av);
2420 if (!SvIMMORTAL(sv) && AvREAL(av))
2421 (void)sv_2mortal(sv);
2430 SV *sv = av_shift(av);
2434 if (!SvIMMORTAL(sv) && AvREAL(av))
2435 (void)sv_2mortal(sv);
2442 dSP; dMARK; dORIGMARK; dTARGET;
2443 register AV *ary = (AV*)*++MARK;
2447 av_unshift(ary, SP - MARK);
2450 sv_setsv(sv, *++MARK);
2451 (void)av_store(ary, i++, sv);
2455 PUSHi( AvFILL(ary) + 1 );
2465 if (GIMME == G_ARRAY) {
2476 register char *down;
2482 do_join(TARG, &sv_no, MARK, SP);
2484 sv_setsv(TARG, *SP);
2485 up = SvPV_force(TARG, len);
2487 down = SvPVX(TARG) + len - 1;
2493 (void)SvPOK_only(TARG);
2507 char *s = SvPV(sv, len);
2511 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2512 SV *new = newSVpv("0000000000", 10);
2515 SvREFCNT_dec(sv); /* free old sv */
2520 while (!*t) /* trailing '\0'? */
2523 i = ((*t - '0') << 7) + m;
2524 *(t--) = '0' + (i % 10);
2530 /* Explosives and implosives. */
2540 register char *pat = SvPV(left, llen);
2541 register char *s = SvPV(right, rlen);
2542 char *strend = s + rlen;
2544 register char *patend = pat + llen;
2549 /* These must not be in registers: */
2560 unsigned Quad_t auquad;
2566 register U32 culong;
2568 static char* bitcount = 0;
2570 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2572 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2573 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2575 while (isDIGIT(*patend) || *patend == '*')
2581 while (pat < patend) {
2586 else if (*pat == '*') {
2587 len = strend - strbeg; /* long enough */
2590 else if (isDIGIT(*pat)) {
2592 while (isDIGIT(*pat))
2593 len = (len * 10) + (*pat++ - '0');
2596 len = (datumtype != '@');
2601 if (len == 1 && pat[-1] != '1')
2610 if (len > strend - strbeg)
2611 DIE("@ outside of string");
2615 if (len > s - strbeg)
2616 DIE("X outside of string");
2620 if (len > strend - s)
2621 DIE("x outside of string");
2626 if (len > strend - s)
2629 goto uchar_checksum;
2630 sv = NEWSV(35, len);
2631 sv_setpvn(sv, s, len);
2633 if (datumtype == 'A') {
2634 aptr = s; /* borrow register */
2635 s = SvPVX(sv) + len - 1;
2636 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2639 SvCUR_set(sv, s - SvPVX(sv));
2640 s = aptr; /* unborrow register */
2642 XPUSHs(sv_2mortal(sv));
2646 if (pat[-1] == '*' || len > (strend - s) * 8)
2647 len = (strend - s) * 8;
2650 Newz(601, bitcount, 256, char);
2651 for (bits = 1; bits < 256; bits++) {
2652 if (bits & 1) bitcount[bits]++;
2653 if (bits & 2) bitcount[bits]++;
2654 if (bits & 4) bitcount[bits]++;
2655 if (bits & 8) bitcount[bits]++;
2656 if (bits & 16) bitcount[bits]++;
2657 if (bits & 32) bitcount[bits]++;
2658 if (bits & 64) bitcount[bits]++;
2659 if (bits & 128) bitcount[bits]++;
2663 culong += bitcount[*(unsigned char*)s++];
2668 if (datumtype == 'b') {
2670 if (bits & 1) culong++;
2676 if (bits & 128) culong++;
2683 sv = NEWSV(35, len + 1);
2686 aptr = pat; /* borrow register */
2688 if (datumtype == 'b') {
2690 for (len = 0; len < aint; len++) {
2691 if (len & 7) /*SUPPRESS 595*/
2695 *pat++ = '0' + (bits & 1);
2700 for (len = 0; len < aint; len++) {
2705 *pat++ = '0' + ((bits & 128) != 0);
2709 pat = aptr; /* unborrow register */
2710 XPUSHs(sv_2mortal(sv));
2714 if (pat[-1] == '*' || len > (strend - s) * 2)
2715 len = (strend - s) * 2;
2716 sv = NEWSV(35, len + 1);
2719 aptr = pat; /* borrow register */
2721 if (datumtype == 'h') {
2723 for (len = 0; len < aint; len++) {
2728 *pat++ = hexdigit[bits & 15];
2733 for (len = 0; len < aint; len++) {
2738 *pat++ = hexdigit[(bits >> 4) & 15];
2742 pat = aptr; /* unborrow register */
2743 XPUSHs(sv_2mortal(sv));
2746 if (len > strend - s)
2751 if (aint >= 128) /* fake up signed chars */
2761 if (aint >= 128) /* fake up signed chars */
2764 sv_setiv(sv, (IV)aint);
2765 PUSHs(sv_2mortal(sv));
2770 if (len > strend - s)
2785 sv_setiv(sv, (IV)auint);
2786 PUSHs(sv_2mortal(sv));
2791 along = (strend - s) / sizeof(I16);
2796 Copy(s, &ashort, 1, I16);
2805 Copy(s, &ashort, 1, I16);
2808 sv_setiv(sv, (IV)ashort);
2809 PUSHs(sv_2mortal(sv));
2816 along = (strend - s) / sizeof(U16);
2821 Copy(s, &aushort, 1, U16);
2824 if (datumtype == 'n')
2825 aushort = ntohs(aushort);
2828 if (datumtype == 'v')
2829 aushort = vtohs(aushort);
2838 Copy(s, &aushort, 1, U16);
2842 if (datumtype == 'n')
2843 aushort = ntohs(aushort);
2846 if (datumtype == 'v')
2847 aushort = vtohs(aushort);
2849 sv_setiv(sv, (IV)aushort);
2850 PUSHs(sv_2mortal(sv));
2855 along = (strend - s) / sizeof(int);
2860 Copy(s, &aint, 1, int);
2863 cdouble += (double)aint;
2872 Copy(s, &aint, 1, int);
2875 sv_setiv(sv, (IV)aint);
2876 PUSHs(sv_2mortal(sv));
2881 along = (strend - s) / sizeof(unsigned int);
2886 Copy(s, &auint, 1, unsigned int);
2887 s += sizeof(unsigned int);
2889 cdouble += (double)auint;
2898 Copy(s, &auint, 1, unsigned int);
2899 s += sizeof(unsigned int);
2901 sv_setuv(sv, (UV)auint);
2902 PUSHs(sv_2mortal(sv));
2907 along = (strend - s) / sizeof(I32);
2912 Copy(s, &along, 1, I32);
2915 cdouble += (double)along;
2924 Copy(s, &along, 1, I32);
2927 sv_setiv(sv, (IV)along);
2928 PUSHs(sv_2mortal(sv));
2935 along = (strend - s) / sizeof(U32);
2940 Copy(s, &aulong, 1, U32);
2943 if (datumtype == 'N')
2944 aulong = ntohl(aulong);
2947 if (datumtype == 'V')
2948 aulong = vtohl(aulong);
2951 cdouble += (double)aulong;
2960 Copy(s, &aulong, 1, U32);
2963 if (datumtype == 'N')
2964 aulong = ntohl(aulong);
2967 if (datumtype == 'V')
2968 aulong = vtohl(aulong);
2971 sv_setuv(sv, (UV)aulong);
2972 PUSHs(sv_2mortal(sv));
2977 along = (strend - s) / sizeof(char*);
2983 if (sizeof(char*) > strend - s)
2986 Copy(s, &aptr, 1, char*);
2992 PUSHs(sv_2mortal(sv));
3002 while ((len > 0) && (s < strend)) {
3003 auv = (auv << 7) | (*s & 0x7f);
3004 if (!(*s++ & 0x80)) {
3008 PUSHs(sv_2mortal(sv));
3012 else if (++bytes >= sizeof(UV)) { /* promote to string */
3013 char decn[sizeof(UV) * 3 + 1];
3016 (void) sprintf(decn, "%0*ld",
3017 (int)sizeof(decn) - 1, auv);
3018 sv = newSVpv(decn, 0);
3019 while (s < strend) {
3020 sv = mul128(sv, *s & 0x7f);
3021 if (!(*s++ & 0x80)) {
3030 PUSHs(sv_2mortal(sv));
3035 if ((s >= strend) && bytes)
3036 croak("Unterminated compressed integer");
3041 if (sizeof(char*) > strend - s)
3044 Copy(s, &aptr, 1, char*);
3049 sv_setpvn(sv, aptr, len);
3050 PUSHs(sv_2mortal(sv));
3057 if (s + sizeof(Quad_t) > strend)
3060 Copy(s, &aquad, 1, Quad_t);
3061 s += sizeof(Quad_t);
3064 sv_setiv(sv, (IV)aquad);
3065 PUSHs(sv_2mortal(sv));
3072 if (s + sizeof(unsigned Quad_t) > strend)
3075 Copy(s, &auquad, 1, unsigned Quad_t);
3076 s += sizeof(unsigned Quad_t);
3079 sv_setuv(sv, (UV)auquad);
3080 PUSHs(sv_2mortal(sv));
3084 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3087 along = (strend - s) / sizeof(float);
3092 Copy(s, &afloat, 1, float);
3101 Copy(s, &afloat, 1, float);
3104 sv_setnv(sv, (double)afloat);
3105 PUSHs(sv_2mortal(sv));
3111 along = (strend - s) / sizeof(double);
3116 Copy(s, &adouble, 1, double);
3117 s += sizeof(double);
3125 Copy(s, &adouble, 1, double);
3126 s += sizeof(double);
3128 sv_setnv(sv, (double)adouble);
3129 PUSHs(sv_2mortal(sv));
3134 along = (strend - s) * 3 / 4;
3135 sv = NEWSV(42, along);
3138 while (s < strend && *s > ' ' && *s < 'a') {
3143 len = (*s++ - ' ') & 077;
3145 if (s < strend && *s >= ' ')
3146 a = (*s++ - ' ') & 077;
3149 if (s < strend && *s >= ' ')
3150 b = (*s++ - ' ') & 077;
3153 if (s < strend && *s >= ' ')
3154 c = (*s++ - ' ') & 077;
3157 if (s < strend && *s >= ' ')
3158 d = (*s++ - ' ') & 077;
3161 hunk[0] = a << 2 | b >> 4;
3162 hunk[1] = b << 4 | c >> 2;
3163 hunk[2] = c << 6 | d;
3164 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3169 else if (s[1] == '\n') /* possible checksum byte */
3172 XPUSHs(sv_2mortal(sv));
3177 if (strchr("fFdD", datumtype) ||
3178 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3182 while (checksum >= 16) {
3186 while (checksum >= 4) {
3192 along = (1 << checksum) - 1;
3193 while (cdouble < 0.0)
3195 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3196 sv_setnv(sv, cdouble);
3199 if (checksum < 32) {
3200 along = (1 << checksum) - 1;
3201 culong &= (U32)along;
3203 sv_setnv(sv, (double)culong);
3205 XPUSHs(sv_2mortal(sv));
3209 if (sp == oldsp && GIMME != G_ARRAY)
3215 doencodes(sv, s, len)
3223 sv_catpvn(sv, hunk, 1);
3226 hunk[0] = ' ' + (077 & (*s >> 2));
3227 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3228 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3229 hunk[3] = ' ' + (077 & (s[2] & 077));
3230 sv_catpvn(sv, hunk, 4);
3234 for (s = SvPVX(sv); *s; s++) {
3238 sv_catpvn(sv, "\n", 1);
3246 SV *result = newSVpv("", l);
3247 char *result_c = SvPV(result, na); /* convenience */
3248 char *out = result_c;
3258 SvREFCNT_dec(result);
3281 SvREFCNT_dec(result);
3287 SvCUR_set(result, out - result_c);
3293 SV *pnum; /* must be '\0' terminated */
3297 char *s = SvPV(pnum, len);
3306 i = m * 10 + (*t - '0');
3308 r = (i >> 7); /* r < 10 */
3315 SvCUR_set(pnum, (STRLEN) (t - s));
3322 dSP; dMARK; dORIGMARK; dTARGET;
3323 register SV *cat = TARG;
3326 register char *pat = SvPVx(*++MARK, fromlen);
3327 register char *patend = pat + fromlen;
3332 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3333 static char *space10 = " ";
3335 /* These must not be in registers: */
3344 unsigned Quad_t auquad;
3352 sv_setpvn(cat, "", 0);
3353 while (pat < patend) {
3354 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3357 len = strchr("@Xxu", datumtype) ? 0 : items;
3360 else if (isDIGIT(*pat)) {
3362 while (isDIGIT(*pat))
3363 len = (len * 10) + (*pat++ - '0');
3371 DIE("%% may only be used in unpack");
3382 if (SvCUR(cat) < len)
3383 DIE("X outside of string");
3390 sv_catpvn(cat, null10, 10);
3393 sv_catpvn(cat, null10, len);
3398 aptr = SvPV(fromstr, fromlen);
3402 sv_catpvn(cat, aptr, len);
3404 sv_catpvn(cat, aptr, fromlen);
3406 if (datumtype == 'A') {
3408 sv_catpvn(cat, space10, 10);
3411 sv_catpvn(cat, space10, len);
3415 sv_catpvn(cat, null10, 10);
3418 sv_catpvn(cat, null10, len);
3425 char *savepat = pat;
3430 aptr = SvPV(fromstr, fromlen);
3435 SvCUR(cat) += (len+7)/8;
3436 SvGROW(cat, SvCUR(cat) + 1);
3437 aptr = SvPVX(cat) + aint;
3442 if (datumtype == 'B') {
3443 for (len = 0; len++ < aint;) {
3444 items |= *pat++ & 1;
3448 *aptr++ = items & 0xff;
3454 for (len = 0; len++ < aint;) {
3460 *aptr++ = items & 0xff;
3466 if (datumtype == 'B')
3467 items <<= 7 - (aint & 7);
3469 items >>= 7 - (aint & 7);
3470 *aptr++ = items & 0xff;
3472 pat = SvPVX(cat) + SvCUR(cat);
3483 char *savepat = pat;
3488 aptr = SvPV(fromstr, fromlen);
3493 SvCUR(cat) += (len+1)/2;
3494 SvGROW(cat, SvCUR(cat) + 1);
3495 aptr = SvPVX(cat) + aint;
3500 if (datumtype == 'H') {
3501 for (len = 0; len++ < aint;) {
3503 items |= ((*pat++ & 15) + 9) & 15;
3505 items |= *pat++ & 15;
3509 *aptr++ = items & 0xff;
3515 for (len = 0; len++ < aint;) {
3517 items |= (((*pat++ & 15) + 9) & 15) << 4;
3519 items |= (*pat++ & 15) << 4;
3523 *aptr++ = items & 0xff;
3529 *aptr++ = items & 0xff;
3530 pat = SvPVX(cat) + SvCUR(cat);
3542 aint = SvIV(fromstr);
3544 sv_catpvn(cat, &achar, sizeof(char));
3547 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3552 afloat = (float)SvNV(fromstr);
3553 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3560 adouble = (double)SvNV(fromstr);
3561 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3567 ashort = (I16)SvIV(fromstr);
3569 ashort = htons(ashort);
3571 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3577 ashort = (I16)SvIV(fromstr);
3579 ashort = htovs(ashort);
3581 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3588 ashort = (I16)SvIV(fromstr);
3589 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3595 auint = U_I(SvNV(fromstr));
3596 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3602 adouble = floor(SvNV(fromstr));
3605 croak("Cannot compress negative numbers");
3607 if (adouble <= UV_MAX) {
3608 char buf[1 + sizeof(UV)];
3609 char *in = buf + sizeof(buf);
3610 UV auv = U_V(adouble);;
3613 *--in = (auv & 0x7f) | 0x80;
3616 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3617 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3619 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3620 char *from, *result, *in;
3625 /* Copy string and check for compliance */
3626 from = SvPV(fromstr, len);
3627 if ((norm = is_an_int(from, len)) == NULL)
3628 croak("can compress only unsigned integer");
3630 New('w', result, len, char);
3634 *--in = div128(norm, &done) | 0x80;
3635 result[len - 1] &= 0x7F; /* clear continue bit */
3636 sv_catpvn(cat, in, (result + len) - in);
3638 SvREFCNT_dec(norm); /* free norm */
3640 else if (SvNOKp(fromstr)) {
3641 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3642 char *in = buf + sizeof(buf);
3645 double next = floor(adouble / 128);
3646 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3647 if (--in < buf) /* this cannot happen ;-) */
3648 croak ("Cannot compress integer");
3650 } while (adouble > 0);
3651 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3652 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3655 croak("Cannot compress non integer");
3661 aint = SvIV(fromstr);
3662 sv_catpvn(cat, (char*)&aint, sizeof(int));
3668 aulong = U_L(SvNV(fromstr));
3670 aulong = htonl(aulong);
3672 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3678 aulong = U_L(SvNV(fromstr));
3680 aulong = htovl(aulong);
3682 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3688 aulong = U_L(SvNV(fromstr));
3689 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3695 along = SvIV(fromstr);
3696 sv_catpvn(cat, (char*)&along, sizeof(I32));
3703 auquad = (unsigned Quad_t)SvIV(fromstr);
3704 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3710 aquad = (Quad_t)SvIV(fromstr);
3711 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3714 #endif /* HAS_QUAD */
3716 len = 1; /* assume SV is correct length */
3721 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3722 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3727 aptr = SvPV(fromstr, fromlen);
3728 SvGROW(cat, fromlen * 4 / 3);
3733 while (fromlen > 0) {
3740 doencodes(cat, aptr, todo);
3758 register I32 limit = POPi; /* note, negative is forever */
3761 register char *s = SvPV(sv, len);
3762 char *strend = s + len;
3764 register REGEXP *rx;
3768 I32 maxiters = (strend - s) + 10;
3771 I32 origlimit = limit;
3774 AV *oldstack = curstack;
3776 I32 oldsave = savestack_ix;
3779 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3784 DIE("panic: do_split");
3785 rx = pm->op_pmregexp;
3787 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3788 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3790 if (pm->op_pmreplroot)
3791 ary = GvAVn((GV*)pm->op_pmreplroot);
3792 else if (gimme != G_ARRAY)
3796 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3800 for (i = AvFILL(ary); i >= 0; i--)
3801 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3805 /* temporarily switch stacks */
3806 SWITCHSTACK(curstack, ary);
3808 base = SP - stack_base;
3810 if (pm->op_pmflags & PMf_SKIPWHITE) {
3811 if (pm->op_pmflags & PMf_LOCALE) {
3812 while (isSPACE_LC(*s))
3820 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3822 multiline = pm->op_pmflags & PMf_MULTILINE;
3826 limit = maxiters + 2;
3827 if (pm->op_pmflags & PMf_WHITE) {
3830 while (m < strend &&
3831 !((pm->op_pmflags & PMf_LOCALE)
3832 ? isSPACE_LC(*m) : isSPACE(*m)))
3837 dstr = NEWSV(30, m-s);
3838 sv_setpvn(dstr, s, m-s);
3844 while (s < strend &&
3845 ((pm->op_pmflags & PMf_LOCALE)
3846 ? isSPACE_LC(*s) : isSPACE(*s)))
3850 else if (strEQ("^", rx->precomp)) {
3853 for (m = s; m < strend && *m != '\n'; m++) ;
3857 dstr = NEWSV(30, m-s);
3858 sv_setpvn(dstr, s, m-s);
3865 else if (pm->op_pmshort && !rx->nparens) {
3866 i = SvCUR(pm->op_pmshort);
3868 i = *SvPVX(pm->op_pmshort);
3871 for (m = s; m < strend && *m != i; m++) ;
3874 dstr = NEWSV(30, m-s);
3875 sv_setpvn(dstr, s, m-s);
3884 while (s < strend && --limit &&
3885 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3889 dstr = NEWSV(31, m-s);
3890 sv_setpvn(dstr, s, m-s);
3899 maxiters += (strend - s) * rx->nparens;
3900 while (s < strend && --limit &&
3901 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3903 TAINT_IF(rx->exec_tainted);
3905 && rx->subbase != orig) {
3910 strend = s + (strend - m);
3913 dstr = NEWSV(32, m-s);
3914 sv_setpvn(dstr, s, m-s);
3919 for (i = 1; i <= rx->nparens; i++) {
3923 dstr = NEWSV(33, m-s);
3924 sv_setpvn(dstr, s, m-s);
3927 dstr = NEWSV(33, 0);
3936 LEAVE_SCOPE(oldsave);
3937 iters = (SP - stack_base) - base;
3938 if (iters > maxiters)
3941 /* keep field after final delim? */
3942 if (s < strend || (iters && origlimit)) {
3943 dstr = NEWSV(34, strend-s);
3944 sv_setpvn(dstr, s, strend-s);
3950 else if (!origlimit) {
3951 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3955 SWITCHSTACK(ary, oldstack);
3956 if (gimme == G_ARRAY) {
3958 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3964 if (gimme == G_ARRAY)
3967 if (iters || !pm->op_pmreplroot) {