3 * Copyright (c) 1991-1994, 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 SV* refto _((SV* sv));
33 static void doencodes _((SV* sv, char* s, I32 len));
35 /* variations on pp_null */
40 if (GIMME != G_ARRAY) {
56 if (op->op_private & OPpLVAL_INTRO)
57 SAVECLEARSV(curpad[op->op_targ]);
59 if (op->op_flags & OPf_REF) {
63 if (GIMME == G_ARRAY) {
64 I32 maxarg = AvFILL((AV*)TARG) + 1;
66 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
70 SV* sv = sv_newmortal();
71 I32 maxarg = AvFILL((AV*)TARG) + 1;
82 if (op->op_private & OPpLVAL_INTRO)
83 SAVECLEARSV(curpad[op->op_targ]);
84 if (op->op_flags & OPf_REF)
86 if (GIMME == G_ARRAY) { /* array wanted */
87 RETURNOP(do_kv(ARGS));
90 SV* sv = sv_newmortal();
91 if (HvFILL((HV*)TARG)) {
92 sprintf(buf, "%d/%d", HvFILL((HV*)TARG), HvMAX((HV*)TARG)+1);
104 DIE("NOT IMPL LINE %d",__LINE__);
116 if (SvTYPE(sv) == SVt_PVIO) {
117 GV *gv = (GV*) sv_newmortal();
118 gv_init(gv, 0, "", 0, 0);
119 GvIOp(gv) = (IO *)sv;
122 } else if (SvTYPE(sv) != SVt_PVGV)
123 DIE("Not a GLOB reference");
126 if (SvTYPE(sv) != SVt_PVGV) {
129 if (SvGMAGICAL(sv)) {
135 if (op->op_flags & OPf_REF ||
136 op->op_private & HINT_STRICT_REFS)
137 DIE(no_usym, "a symbol");
141 if (op->op_private & HINT_STRICT_REFS)
142 DIE(no_symref, sym, "a symbol");
143 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
146 if (op->op_private & OPpLVAL_INTRO)
147 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
159 switch (SvTYPE(sv)) {
163 DIE("Not a SCALAR reference");
170 if (SvTYPE(gv) != SVt_PVGV) {
171 if (SvGMAGICAL(sv)) {
177 if (op->op_flags & OPf_REF ||
178 op->op_private & HINT_STRICT_REFS)
179 DIE(no_usym, "a SCALAR");
183 if (op->op_private & HINT_STRICT_REFS)
184 DIE(no_symref, sym, "a SCALAR");
185 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
189 if (op->op_flags & OPf_MOD) {
190 if (op->op_private & OPpLVAL_INTRO)
191 sv = save_scalar((GV*)TOPs);
192 else if (op->op_private & OPpDEREF)
203 SV *sv = AvARYLEN(av);
205 AvARYLEN(av) = sv = NEWSV(0,0);
206 sv_upgrade(sv, SVt_IV);
207 sv_magic(sv, (SV*)av, '#', Nullch, 0);
215 dSP; dTARGET; dPOPss;
217 if (op->op_flags & OPf_MOD) {
218 if (SvTYPE(TARG) < SVt_PVLV) {
219 sv_upgrade(TARG, SVt_PVLV);
220 sv_magic(TARG, Nullsv, '.', Nullch, 0);
225 PUSHs(TARG); /* no SvSETMAGIC */
231 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
232 mg = mg_find(sv, 'g');
233 if (mg && mg->mg_len >= 0) {
234 PUSHi(mg->mg_len + curcop->cop_arybase);
248 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
249 /* (But not in defined().) */
250 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
253 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
270 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
272 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
280 CV* cv = (CV*)curpad[op->op_targ];
282 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
298 if (GIMME != G_ARRAY) {
302 EXTEND_MORTAL(SP - MARK);
304 *MARK = refto(*MARK);
314 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
320 else if (SvPADTMP(sv))
324 (void)SvREFCNT_inc(sv);
327 sv_upgrade(rv, SVt_RV);
341 if (sv && SvGMAGICAL(sv))
344 if (!sv || !SvROK(sv))
348 pv = sv_reftype(sv,TRUE);
349 PUSHp(pv, strlen(pv));
359 stash = curcop->cop_stash;
361 stash = gv_stashsv(POPs, TRUE);
363 (void)sv_bless(TOPs, stash);
367 /* Pattern matching */
372 register unsigned char *s;
375 register I32 *sfirst;
380 s = (unsigned char*)(SvPV(sv, len));
382 if (sv == lastscream)
386 SvSCREAM_off(lastscream);
387 SvREFCNT_dec(lastscream);
389 lastscream = SvREFCNT_inc(sv);
395 if (pos > maxscream) {
397 maxscream = pos + 80;
398 New(301, screamfirst, 256, I32);
399 New(302, screamnext, maxscream, I32);
402 maxscream = pos + pos / 4;
403 Renew(screamnext, maxscream, I32);
407 sfirst = screamfirst;
410 if (!sfirst || !snext)
411 DIE("do_study: out of memory");
413 for (ch = 256; ch; --ch)
420 snext[pos] = sfirst[ch] - pos;
427 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
430 XPUSHs(sv_2mortal(newSViv((I32)retval)));
439 if (op->op_flags & OPf_STACKED)
445 TARG = sv_newmortal();
446 PUSHi(do_trans(sv, op));
450 /* Lvalue operators. */
472 SETi(do_chomp(TOPs));
479 register I32 count = 0;
482 count += do_chomp(POPs);
493 if (!sv || !SvANY(sv))
495 switch (SvTYPE(sv)) {
497 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
501 if (HvARRAY(sv) || SvRMAGICAL(sv))
505 if (CvROOT(sv) || CvXSUB(sv))
529 if (SvTHINKFIRST(sv)) {
536 switch (SvTYPE(sv)) {
551 sv_setsv(sv, &sv_undef);
555 if (SvPOK(sv) && SvLEN(sv)) {
558 SvPV_set(sv, Nullch);
571 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
572 SvIVX(TOPs) != IV_MIN)
575 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
586 sv_setsv(TARG, TOPs);
587 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
588 SvIVX(TOPs) != IV_MAX)
591 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
605 sv_setsv(TARG, TOPs);
606 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
607 SvIVX(TOPs) != IV_MIN)
610 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
619 /* Ordinary operators. */
623 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
626 SETn( pow( left, right) );
633 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
636 SETn( left * right );
643 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
648 DIE("Illegal division by zero");
650 /* insure that 20./5. == 4. */
653 if ((double)I_V(left) == left &&
654 (double)I_V(right) == right &&
655 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
658 value = left / right;
662 value = left / right;
671 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
677 DIE("Illegal modulus zero");
679 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
680 register IV left = SvIVX(TOPs);
682 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
684 SETi( left % right );
687 register double left = TOPn;
689 SETu( (right - (U_V(-left) - 1) % right) - 1 );
691 SETu( U_V(left) % right );
699 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
701 register I32 count = POPi;
702 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
704 I32 items = SP - MARK;
716 repeatcpy((char*)(MARK + items), (char*)MARK,
717 items * sizeof(SV*), count - 1);
723 else { /* Note: mark already snarfed by pp_list */
728 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
729 if (SvREADONLY(tmpstr) && curcop != &compiling)
730 DIE("Can't x= to readonly value");
734 SvSetSV(TARG, tmpstr);
735 SvPV_force(TARG, len);
740 SvGROW(TARG, (count * len) + 1);
741 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
742 SvCUR(TARG) *= count;
746 (void)SvPOK_only(TARG);
755 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
758 SETn( left - right );
765 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
768 if (op->op_private & HINT_INTEGER) {
782 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
785 if (op->op_private & HINT_INTEGER) {
799 dSP; tryAMAGICbinSET(lt,0);
802 SETs((TOPn < value) ? &sv_yes : &sv_no);
809 dSP; tryAMAGICbinSET(gt,0);
812 SETs((TOPn > value) ? &sv_yes : &sv_no);
819 dSP; tryAMAGICbinSET(le,0);
822 SETs((TOPn <= value) ? &sv_yes : &sv_no);
829 dSP; tryAMAGICbinSET(ge,0);
832 SETs((TOPn >= value) ? &sv_yes : &sv_no);
839 dSP; tryAMAGICbinSET(ne,0);
842 SETs((TOPn != value) ? &sv_yes : &sv_no);
849 dSP; dTARGET; tryAMAGICbin(ncmp,0);
856 else if (left < right)
867 dSP; tryAMAGICbinSET(slt,0);
870 int cmp = ((op->op_private & OPpLOCALE)
871 ? sv_cmp_locale(left, right)
872 : sv_cmp(left, right));
873 SETs( cmp < 0 ? &sv_yes : &sv_no );
880 dSP; tryAMAGICbinSET(sgt,0);
883 int cmp = ((op->op_private & OPpLOCALE)
884 ? sv_cmp_locale(left, right)
885 : sv_cmp(left, right));
886 SETs( cmp > 0 ? &sv_yes : &sv_no );
893 dSP; tryAMAGICbinSET(sle,0);
896 int cmp = ((op->op_private & OPpLOCALE)
897 ? sv_cmp_locale(left, right)
898 : sv_cmp(left, right));
899 SETs( cmp <= 0 ? &sv_yes : &sv_no );
906 dSP; tryAMAGICbinSET(sge,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(seq,0);
922 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
929 dSP; tryAMAGICbinSET(sne,0);
932 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
939 dSP; dTARGET; tryAMAGICbin(scmp,0);
942 int cmp = ((op->op_private & OPpLOCALE)
943 ? sv_cmp_locale(left, right)
944 : sv_cmp(left, right));
952 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
955 if (SvNIOKp(left) || SvNIOKp(right)) {
956 if (op->op_private & HINT_INTEGER) {
957 IBW value = SvIV(left) & SvIV(right);
961 UBW value = SvUV(left) & SvUV(right);
966 do_vop(op->op_type, TARG, left, right);
975 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
978 if (SvNIOKp(left) || SvNIOKp(right)) {
979 if (op->op_private & HINT_INTEGER) {
980 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
984 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
989 do_vop(op->op_type, TARG, left, right);
998 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1001 if (SvNIOKp(left) || SvNIOKp(right)) {
1002 if (op->op_private & HINT_INTEGER) {
1003 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1007 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1012 do_vop(op->op_type, TARG, left, right);
1021 dSP; dTARGET; tryAMAGICun(neg);
1026 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1028 else if (SvNIOKp(sv))
1030 else if (SvPOKp(sv)) {
1032 char *s = SvPV(sv, len);
1033 if (isIDFIRST(*s)) {
1034 sv_setpvn(TARG, "-", 1);
1037 else if (*s == '+' || *s == '-') {
1039 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1042 sv_setnv(TARG, -SvNV(sv));
1054 dSP; tryAMAGICunSET(not);
1055 #endif /* OVERLOAD */
1056 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1062 dSP; dTARGET; tryAMAGICun(compl);
1066 if (op->op_private & HINT_INTEGER) {
1067 IBW value = ~SvIV(sv);
1071 UBW value = ~SvUV(sv);
1076 register char *tmps;
1077 register long *tmpl;
1082 tmps = SvPV_force(TARG, len);
1085 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1088 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1092 for ( ; anum > 0; anum--, tmps++)
1101 /* integer versions of some of the above */
1105 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1108 SETi( left * right );
1115 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1119 DIE("Illegal division by zero");
1120 value = POPi / value;
1128 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1131 SETi( left % right );
1138 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1141 SETi( left + right );
1148 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1151 SETi( left - right );
1158 dSP; tryAMAGICbinSET(lt,0);
1161 SETs((left < right) ? &sv_yes : &sv_no);
1168 dSP; tryAMAGICbinSET(gt,0);
1171 SETs((left > right) ? &sv_yes : &sv_no);
1178 dSP; tryAMAGICbinSET(le,0);
1181 SETs((left <= right) ? &sv_yes : &sv_no);
1188 dSP; tryAMAGICbinSET(ge,0);
1191 SETs((left >= right) ? &sv_yes : &sv_no);
1198 dSP; tryAMAGICbinSET(eq,0);
1201 SETs((left == right) ? &sv_yes : &sv_no);
1208 dSP; tryAMAGICbinSET(ne,0);
1211 SETs((left != right) ? &sv_yes : &sv_no);
1218 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1225 else if (left < right)
1236 dSP; dTARGET; tryAMAGICun(neg);
1241 /* High falutin' math. */
1245 dSP; dTARGET; tryAMAGICbin(atan2,0);
1248 SETn(atan2(left, right));
1255 dSP; dTARGET; tryAMAGICun(sin);
1267 dSP; dTARGET; tryAMAGICun(cos);
1288 value = rand() * value / 2147483648.0;
1291 value = rand() * value / 65536.0;
1294 value = rand() * value / 32768.0;
1296 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1311 # include <starlet.h>
1312 unsigned int when[2];
1313 _ckvmssts(sys$gettim(when));
1314 anum = when[0] ^ when[1];
1316 # ifdef HAS_GETTIMEOFDAY
1317 struct timeval when;
1318 gettimeofday(&when,(struct timezone *) 0);
1319 anum = when.tv_sec ^ when.tv_usec;
1326 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1327 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1328 /* What is a good hashing algorithm here? */
1329 anum ^= ( ( 269 * (U32)getpid())
1330 ^ (26107 * (U32)&when)
1331 ^ (73819 * (U32)stack_sp));
1343 dSP; dTARGET; tryAMAGICun(exp);
1355 dSP; dTARGET; tryAMAGICun(log);
1360 SET_NUMERIC_STANDARD();
1361 DIE("Can't take log of %g", value);
1371 dSP; dTARGET; tryAMAGICun(sqrt);
1376 SET_NUMERIC_STANDARD();
1377 DIE("Can't take sqrt of %g", value);
1379 value = sqrt(value);
1391 (void)modf(value, &value);
1393 (void)modf(-value, &value);
1402 dSP; dTARGET; tryAMAGICun(abs);
1422 XPUSHu(scan_hex(tmps, 99, &argtype));
1434 while (*tmps && isSPACE(*tmps))
1439 value = scan_hex(++tmps, 99, &argtype);
1441 value = scan_oct(tmps, 99, &argtype);
1451 SETi( sv_len(TOPs) );
1463 I32 lvalue = op->op_flags & OPf_MOD;
1465 I32 arybase = curcop->cop_arybase;
1469 pos = POPi - arybase;
1471 tmps = SvPV(sv, curlen);
1473 pos += curlen + arybase;
1474 if (pos < 0 || pos > curlen) {
1475 if (dowarn || lvalue)
1476 warn("substr outside of string");
1483 len += curlen - pos;
1488 rem = curlen - pos; /* rem=how many bytes left*/
1491 sv_setpvn(TARG, tmps, rem);
1492 if (lvalue) { /* it's an lvalue! */
1493 if (!SvGMAGICAL(sv)) {
1497 warn("Attempt to use reference as lvalue in substr");
1499 if (SvOK(sv)) /* is it defined ? */
1500 (void)SvPOK_only(sv);
1502 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1505 if (SvTYPE(TARG) < SVt_PVLV) {
1506 sv_upgrade(TARG, SVt_PVLV);
1507 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1512 LvTARGOFF(TARG) = pos;
1513 LvTARGLEN(TARG) = rem;
1516 PUSHs(TARG); /* avoid SvSETMAGIC here */
1523 register I32 size = POPi;
1524 register I32 offset = POPi;
1525 register SV *src = POPs;
1526 I32 lvalue = op->op_flags & OPf_MOD;
1528 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1529 unsigned long retnum;
1532 offset *= size; /* turn into bit offset */
1533 len = (offset + size + 7) / 8;
1534 if (offset < 0 || size < 1)
1537 if (lvalue) { /* it's an lvalue! */
1538 if (SvTYPE(TARG) < SVt_PVLV) {
1539 sv_upgrade(TARG, SVt_PVLV);
1540 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1545 LvTARGOFF(TARG) = offset;
1546 LvTARGLEN(TARG) = size;
1554 if (offset >= srclen)
1557 retnum = (unsigned long) s[offset] << 8;
1559 else if (size == 32) {
1560 if (offset >= srclen)
1562 else if (offset + 1 >= srclen)
1563 retnum = (unsigned long) s[offset] << 24;
1564 else if (offset + 2 >= srclen)
1565 retnum = ((unsigned long) s[offset] << 24) +
1566 ((unsigned long) s[offset + 1] << 16);
1568 retnum = ((unsigned long) s[offset] << 24) +
1569 ((unsigned long) s[offset + 1] << 16) +
1570 (s[offset + 2] << 8);
1575 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1580 else if (size == 16)
1581 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1582 else if (size == 32)
1583 retnum = ((unsigned long) s[offset] << 24) +
1584 ((unsigned long) s[offset + 1] << 16) +
1585 (s[offset + 2] << 8) + s[offset+3];
1589 sv_setiv(TARG, (I32)retnum);
1604 I32 arybase = curcop->cop_arybase;
1609 offset = POPi - arybase;
1612 tmps = SvPV(big, biglen);
1615 else if (offset > biglen)
1617 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1618 (unsigned char*)tmps + biglen, little)))
1619 retval = -1 + arybase;
1621 retval = tmps2 - tmps + arybase;
1638 I32 arybase = curcop->cop_arybase;
1644 tmps2 = SvPV(little, llen);
1645 tmps = SvPV(big, blen);
1649 offset = SvIV(offstr) - arybase + llen;
1652 else if (offset > blen)
1654 if (!(tmps2 = rninstr(tmps, tmps + offset,
1655 tmps2, tmps2 + llen)))
1656 retval = -1 + arybase;
1658 retval = tmps2 - tmps + arybase;
1665 dSP; dMARK; dORIGMARK; dTARGET;
1666 #ifdef USE_LOCALE_NUMERIC
1667 if (op->op_private & OPpLOCALE)
1668 SET_NUMERIC_LOCAL();
1670 SET_NUMERIC_STANDARD();
1672 do_sprintf(TARG, SP-MARK, MARK+1);
1673 TAINT_IF(SvTAINTED(TARG));
1687 value = (I32) (*tmps & 255);
1692 value = (I32) (anum & 255);
1703 (void)SvUPGRADE(TARG,SVt_PV);
1709 (void)SvPOK_only(TARG);
1716 dSP; dTARGET; dPOPTOPssrl;
1718 char *tmps = SvPV(left, na);
1720 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1722 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1726 "The crypt() function is unimplemented due to excessive paranoia.");
1738 if (!SvPADTMP(sv)) {
1744 s = SvPV_force(sv, na);
1746 if (op->op_private & OPpLOCALE) {
1749 *s = toUPPER_LC(*s);
1764 if (!SvPADTMP(sv)) {
1770 s = SvPV_force(sv, na);
1772 if (op->op_private & OPpLOCALE) {
1775 *s = toLOWER_LC(*s);
1792 if (!SvPADTMP(sv)) {
1799 s = SvPV_force(sv, len);
1801 register char *send = s + len;
1803 if (op->op_private & OPpLOCALE) {
1806 for (; s < send; s++)
1807 *s = toUPPER_LC(*s);
1810 for (; s < send; s++)
1824 if (!SvPADTMP(sv)) {
1831 s = SvPV_force(sv, len);
1833 register char *send = s + len;
1835 if (op->op_private & OPpLOCALE) {
1838 for (; s < send; s++)
1839 *s = toLOWER_LC(*s);
1842 for (; s < send; s++)
1854 register char *s = SvPV(sv,len);
1858 (void)SvUPGRADE(TARG, SVt_PV);
1859 SvGROW(TARG, (len * 2) + 1);
1867 SvCUR_set(TARG, d - SvPVX(TARG));
1868 (void)SvPOK_only(TARG);
1871 sv_setpvn(TARG, s, len);
1880 dSP; dMARK; dORIGMARK;
1882 register AV* av = (AV*)POPs;
1883 register I32 lval = op->op_flags & OPf_MOD;
1884 I32 arybase = curcop->cop_arybase;
1887 if (SvTYPE(av) == SVt_PVAV) {
1888 if (lval && op->op_private & OPpLVAL_INTRO) {
1890 for (svp = mark + 1; svp <= sp; svp++) {
1895 if (max > AvMAX(av))
1898 while (++MARK <= SP) {
1899 elem = SvIVx(*MARK);
1903 svp = av_fetch(av, elem, lval);
1905 if (!svp || *svp == &sv_undef)
1906 DIE(no_aelem, elem);
1907 if (op->op_private & OPpLVAL_INTRO)
1910 *MARK = svp ? *svp : &sv_undef;
1913 if (GIMME != G_ARRAY) {
1921 /* Associative arrays. */
1926 HV *hash = (HV*)POPs;
1930 entry = hv_iternext(hash); /* might clobber stack_sp */
1935 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1936 if (GIMME == G_ARRAY) {
1938 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1943 else if (GIMME == G_SCALAR)
1965 if (op->op_private & OPpSLICE) {
1968 if (SvTYPE(hv) != SVt_PVHV)
1969 DIE("Not a HASH reference");
1970 while (++MARK <= SP) {
1971 sv = hv_delete_ent(hv, *MARK,
1972 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1973 *MARK = sv ? sv : &sv_undef;
1975 if (GIMME != G_ARRAY) {
1984 if (SvTYPE(hv) != SVt_PVHV)
1985 DIE("Not a HASH reference");
1986 sv = hv_delete_ent(hv, keysv,
1987 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2001 if (SvTYPE(hv) != SVt_PVHV) {
2002 DIE("Not a HASH reference");
2004 if (hv_exists_ent(hv, tmpsv, 0))
2011 dSP; dMARK; dORIGMARK;
2013 register HV *hv = (HV*)POPs;
2014 register I32 lval = op->op_flags & OPf_MOD;
2016 if (SvTYPE(hv) == SVt_PVHV) {
2017 while (++MARK <= SP) {
2020 he = hv_fetch_ent(hv, keysv, lval, 0);
2022 if (!he || HeVAL(he) == &sv_undef)
2023 DIE(no_helem, SvPV(keysv, na));
2024 if (op->op_private & OPpLVAL_INTRO)
2025 save_svref(&HeVAL(he));
2027 *MARK = he ? HeVAL(he) : &sv_undef;
2030 if (GIMME != G_ARRAY) {
2038 /* List operators. */
2043 if (GIMME != G_ARRAY) {
2045 *MARK = *SP; /* unwanted list, return last item */
2056 SV **lastrelem = stack_sp;
2057 SV **lastlelem = stack_base + POPMARK;
2058 SV **firstlelem = stack_base + POPMARK + 1;
2059 register SV **firstrelem = lastlelem + 1;
2060 I32 arybase = curcop->cop_arybase;
2061 I32 lval = op->op_flags & OPf_MOD;
2062 I32 is_something_there = lval;
2064 register I32 max = lastrelem - lastlelem;
2065 register SV **lelem;
2068 if (GIMME != G_ARRAY) {
2069 ix = SvIVx(*lastlelem);
2074 if (ix < 0 || ix >= max)
2075 *firstlelem = &sv_undef;
2077 *firstlelem = firstrelem[ix];
2083 SP = firstlelem - 1;
2087 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2093 else if (!(*lelem = firstrelem[ix]))
2098 if (ix >= max || !(*lelem = firstrelem[ix]))
2101 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2102 is_something_there = TRUE;
2104 if (is_something_there)
2107 SP = firstlelem - 1;
2114 I32 items = SP - MARK;
2116 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2122 dSP; dMARK; dORIGMARK;
2123 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2127 SV *val = NEWSV(46, 0);
2129 sv_setsv(val, *++MARK);
2131 warn("Odd number of elements in hash list");
2132 (void)hv_store_ent(hv,key,val,0);
2141 dSP; dMARK; dORIGMARK;
2142 register AV *ary = (AV*)*++MARK;
2146 register I32 offset;
2147 register I32 length;
2156 offset = SvIVx(*MARK);
2158 offset += AvFILL(ary) + 1;
2160 offset -= curcop->cop_arybase;
2162 length = SvIVx(*MARK++);
2167 length = AvMAX(ary) + 1; /* close enough to infinity */
2171 length = AvMAX(ary) + 1;
2179 if (offset > AvFILL(ary) + 1)
2180 offset = AvFILL(ary) + 1;
2181 after = AvFILL(ary) + 1 - (offset + length);
2182 if (after < 0) { /* not that much array */
2183 length += after; /* offset+length now in array */
2189 /* At this point, MARK .. SP-1 is our new LIST */
2192 diff = newlen - length;
2194 if (diff < 0) { /* shrinking the area */
2196 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2197 Copy(MARK, tmparyval, newlen, SV*);
2200 MARK = ORIGMARK + 1;
2201 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2202 MEXTEND(MARK, length);
2203 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2205 EXTEND_MORTAL(length);
2206 for (i = length, dst = MARK; i; i--) {
2207 if (!SvIMMORTAL(*dst))
2208 sv_2mortal(*dst); /* free them eventualy */
2215 *MARK = AvARRAY(ary)[offset+length-1];
2217 if (!SvIMMORTAL(*MARK))
2219 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2220 SvREFCNT_dec(*dst++); /* free them now */
2223 AvFILL(ary) += diff;
2225 /* pull up or down? */
2227 if (offset < after) { /* easier to pull up */
2228 if (offset) { /* esp. if nothing to pull */
2229 src = &AvARRAY(ary)[offset-1];
2230 dst = src - diff; /* diff is negative */
2231 for (i = offset; i > 0; i--) /* can't trust Copy */
2235 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2239 if (after) { /* anything to pull down? */
2240 src = AvARRAY(ary) + offset + length;
2241 dst = src + diff; /* diff is negative */
2242 Move(src, dst, after, SV*);
2244 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2245 /* avoid later double free */
2249 dst[--i] = &sv_undef;
2252 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2254 *dst = NEWSV(46, 0);
2255 sv_setsv(*dst++, *src++);
2257 Safefree(tmparyval);
2260 else { /* no, expanding (or same) */
2262 New(452, tmparyval, length, SV*); /* so remember deletion */
2263 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2266 if (diff > 0) { /* expanding */
2268 /* push up or down? */
2270 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2274 Move(src, dst, offset, SV*);
2276 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2278 AvFILL(ary) += diff;
2281 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2282 av_extend(ary, AvFILL(ary) + diff);
2283 AvFILL(ary) += diff;
2286 dst = AvARRAY(ary) + AvFILL(ary);
2288 for (i = after; i; i--) {
2295 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2296 *dst = NEWSV(46, 0);
2297 sv_setsv(*dst++, *src++);
2299 MARK = ORIGMARK + 1;
2300 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2302 Copy(tmparyval, MARK, length, SV*);
2304 EXTEND_MORTAL(length);
2305 for (i = length, dst = MARK; i; i--) {
2306 if (!SvIMMORTAL(*dst))
2307 sv_2mortal(*dst); /* free them eventualy */
2311 Safefree(tmparyval);
2315 else if (length--) {
2316 *MARK = tmparyval[length];
2318 if (!SvIMMORTAL(*MARK))
2320 while (length-- > 0)
2321 SvREFCNT_dec(tmparyval[length]);
2323 Safefree(tmparyval);
2334 dSP; dMARK; dORIGMARK; dTARGET;
2335 register AV *ary = (AV*)*++MARK;
2336 register SV *sv = &sv_undef;
2338 for (++MARK; MARK <= SP; MARK++) {
2341 sv_setsv(sv, *MARK);
2345 PUSHi( AvFILL(ary) + 1 );
2353 SV *sv = av_pop(av);
2354 if (!SvIMMORTAL(sv) && AvREAL(av))
2355 (void)sv_2mortal(sv);
2364 SV *sv = av_shift(av);
2368 if (!SvIMMORTAL(sv) && AvREAL(av))
2369 (void)sv_2mortal(sv);
2376 dSP; dMARK; dORIGMARK; dTARGET;
2377 register AV *ary = (AV*)*++MARK;
2381 av_unshift(ary, SP - MARK);
2384 sv_setsv(sv, *++MARK);
2385 (void)av_store(ary, i++, sv);
2389 PUSHi( AvFILL(ary) + 1 );
2399 if (GIMME == G_ARRAY) {
2410 register char *down;
2416 do_join(TARG, &sv_no, MARK, SP);
2418 sv_setsv(TARG, *SP);
2419 up = SvPV_force(TARG, len);
2421 down = SvPVX(TARG) + len - 1;
2427 (void)SvPOK_only(TARG);
2441 char *s = SvPV(sv, len);
2445 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2446 SV *new = newSVpv("0000000000", 10);
2449 SvREFCNT_dec(sv); /* free old sv */
2454 while (!*t) /* trailing '\0'? */
2457 i = ((*t - '0') << 7) + m;
2458 *(t--) = '0' + (i % 10);
2464 /* Explosives and implosives. */
2474 register char *pat = SvPV(left, llen);
2475 register char *s = SvPV(right, rlen);
2476 char *strend = s + rlen;
2478 register char *patend = pat + llen;
2483 /* These must not be in registers: */
2494 unsigned Quad_t auquad;
2500 register U32 culong;
2502 static char* bitcount = 0;
2504 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2506 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2507 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2509 while (isDIGIT(*patend) || *patend == '*')
2515 while (pat < patend) {
2520 else if (*pat == '*') {
2521 len = strend - strbeg; /* long enough */
2524 else if (isDIGIT(*pat)) {
2526 while (isDIGIT(*pat))
2527 len = (len * 10) + (*pat++ - '0');
2530 len = (datumtype != '@');
2535 if (len == 1 && pat[-1] != '1')
2544 if (len > strend - strbeg)
2545 DIE("@ outside of string");
2549 if (len > s - strbeg)
2550 DIE("X outside of string");
2554 if (len > strend - s)
2555 DIE("x outside of string");
2560 if (len > strend - s)
2563 goto uchar_checksum;
2564 sv = NEWSV(35, len);
2565 sv_setpvn(sv, s, len);
2567 if (datumtype == 'A') {
2568 aptr = s; /* borrow register */
2569 s = SvPVX(sv) + len - 1;
2570 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2573 SvCUR_set(sv, s - SvPVX(sv));
2574 s = aptr; /* unborrow register */
2576 XPUSHs(sv_2mortal(sv));
2580 if (pat[-1] == '*' || len > (strend - s) * 8)
2581 len = (strend - s) * 8;
2584 Newz(601, bitcount, 256, char);
2585 for (bits = 1; bits < 256; bits++) {
2586 if (bits & 1) bitcount[bits]++;
2587 if (bits & 2) bitcount[bits]++;
2588 if (bits & 4) bitcount[bits]++;
2589 if (bits & 8) bitcount[bits]++;
2590 if (bits & 16) bitcount[bits]++;
2591 if (bits & 32) bitcount[bits]++;
2592 if (bits & 64) bitcount[bits]++;
2593 if (bits & 128) bitcount[bits]++;
2597 culong += bitcount[*(unsigned char*)s++];
2602 if (datumtype == 'b') {
2604 if (bits & 1) culong++;
2610 if (bits & 128) culong++;
2617 sv = NEWSV(35, len + 1);
2620 aptr = pat; /* borrow register */
2622 if (datumtype == 'b') {
2624 for (len = 0; len < aint; len++) {
2625 if (len & 7) /*SUPPRESS 595*/
2629 *pat++ = '0' + (bits & 1);
2634 for (len = 0; len < aint; len++) {
2639 *pat++ = '0' + ((bits & 128) != 0);
2643 pat = aptr; /* unborrow register */
2644 XPUSHs(sv_2mortal(sv));
2648 if (pat[-1] == '*' || len > (strend - s) * 2)
2649 len = (strend - s) * 2;
2650 sv = NEWSV(35, len + 1);
2653 aptr = pat; /* borrow register */
2655 if (datumtype == 'h') {
2657 for (len = 0; len < aint; len++) {
2662 *pat++ = hexdigit[bits & 15];
2667 for (len = 0; len < aint; len++) {
2672 *pat++ = hexdigit[(bits >> 4) & 15];
2676 pat = aptr; /* unborrow register */
2677 XPUSHs(sv_2mortal(sv));
2680 if (len > strend - s)
2685 if (aint >= 128) /* fake up signed chars */
2695 if (aint >= 128) /* fake up signed chars */
2698 sv_setiv(sv, (I32)aint);
2699 PUSHs(sv_2mortal(sv));
2704 if (len > strend - s)
2719 sv_setiv(sv, (I32)auint);
2720 PUSHs(sv_2mortal(sv));
2725 along = (strend - s) / sizeof(I16);
2730 Copy(s, &ashort, 1, I16);
2739 Copy(s, &ashort, 1, I16);
2742 sv_setiv(sv, (I32)ashort);
2743 PUSHs(sv_2mortal(sv));
2750 along = (strend - s) / sizeof(U16);
2755 Copy(s, &aushort, 1, U16);
2758 if (datumtype == 'n')
2759 aushort = ntohs(aushort);
2762 if (datumtype == 'v')
2763 aushort = vtohs(aushort);
2772 Copy(s, &aushort, 1, U16);
2776 if (datumtype == 'n')
2777 aushort = ntohs(aushort);
2780 if (datumtype == 'v')
2781 aushort = vtohs(aushort);
2783 sv_setiv(sv, (I32)aushort);
2784 PUSHs(sv_2mortal(sv));
2789 along = (strend - s) / sizeof(int);
2794 Copy(s, &aint, 1, int);
2797 cdouble += (double)aint;
2806 Copy(s, &aint, 1, int);
2809 sv_setiv(sv, (I32)aint);
2810 PUSHs(sv_2mortal(sv));
2815 along = (strend - s) / sizeof(unsigned int);
2820 Copy(s, &auint, 1, unsigned int);
2821 s += sizeof(unsigned int);
2823 cdouble += (double)auint;
2832 Copy(s, &auint, 1, unsigned int);
2833 s += sizeof(unsigned int);
2835 if (auint <= I32_MAX)
2836 sv_setiv(sv, (I32)auint);
2838 sv_setnv(sv, (double)auint);
2839 PUSHs(sv_2mortal(sv));
2844 along = (strend - s) / sizeof(I32);
2849 Copy(s, &along, 1, I32);
2852 cdouble += (double)along;
2861 Copy(s, &along, 1, I32);
2864 sv_setiv(sv, (I32)along);
2865 PUSHs(sv_2mortal(sv));
2872 along = (strend - s) / sizeof(U32);
2877 Copy(s, &aulong, 1, U32);
2880 if (datumtype == 'N')
2881 aulong = ntohl(aulong);
2884 if (datumtype == 'V')
2885 aulong = vtohl(aulong);
2888 cdouble += (double)aulong;
2897 Copy(s, &aulong, 1, U32);
2901 if (datumtype == 'N')
2902 aulong = ntohl(aulong);
2905 if (datumtype == 'V')
2906 aulong = vtohl(aulong);
2908 sv_setnv(sv, (double)aulong);
2909 PUSHs(sv_2mortal(sv));
2914 along = (strend - s) / sizeof(char*);
2920 if (sizeof(char*) > strend - s)
2923 Copy(s, &aptr, 1, char*);
2929 PUSHs(sv_2mortal(sv));
2939 while ((len > 0) && (s < strend)) {
2940 auv = (auv << 7) | (*s & 0x7f);
2941 if (!(*s++ & 0x80)) {
2945 PUSHs(sv_2mortal(sv));
2949 else if (++bytes >= sizeof(UV)) { /* promote to string */
2950 char decn[sizeof(UV) * 3 + 1];
2953 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2954 sv = newSVpv(decn, 0);
2955 while (s < strend) {
2956 sv = mul128(sv, *s & 0x7f);
2957 if (!(*s++ & 0x80)) {
2966 PUSHs(sv_2mortal(sv));
2971 if ((s >= strend) && bytes)
2972 croak("Unterminated compressed integer");
2977 if (sizeof(char*) > strend - s)
2980 Copy(s, &aptr, 1, char*);
2985 sv_setpvn(sv, aptr, len);
2986 PUSHs(sv_2mortal(sv));
2993 if (s + sizeof(Quad_t) > strend)
2996 Copy(s, &aquad, 1, Quad_t);
2997 s += sizeof(Quad_t);
3000 sv_setiv(sv, (IV)aquad);
3001 PUSHs(sv_2mortal(sv));
3008 if (s + sizeof(unsigned Quad_t) > strend)
3011 Copy(s, &auquad, 1, unsigned Quad_t);
3012 s += sizeof(unsigned Quad_t);
3015 sv_setiv(sv, (IV)auquad);
3016 PUSHs(sv_2mortal(sv));
3020 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3023 along = (strend - s) / sizeof(float);
3028 Copy(s, &afloat, 1, float);
3037 Copy(s, &afloat, 1, float);
3040 sv_setnv(sv, (double)afloat);
3041 PUSHs(sv_2mortal(sv));
3047 along = (strend - s) / sizeof(double);
3052 Copy(s, &adouble, 1, double);
3053 s += sizeof(double);
3061 Copy(s, &adouble, 1, double);
3062 s += sizeof(double);
3064 sv_setnv(sv, (double)adouble);
3065 PUSHs(sv_2mortal(sv));
3070 along = (strend - s) * 3 / 4;
3071 sv = NEWSV(42, along);
3074 while (s < strend && *s > ' ' && *s < 'a') {
3079 len = (*s++ - ' ') & 077;
3081 if (s < strend && *s >= ' ')
3082 a = (*s++ - ' ') & 077;
3085 if (s < strend && *s >= ' ')
3086 b = (*s++ - ' ') & 077;
3089 if (s < strend && *s >= ' ')
3090 c = (*s++ - ' ') & 077;
3093 if (s < strend && *s >= ' ')
3094 d = (*s++ - ' ') & 077;
3097 hunk[0] = a << 2 | b >> 4;
3098 hunk[1] = b << 4 | c >> 2;
3099 hunk[2] = c << 6 | d;
3100 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3105 else if (s[1] == '\n') /* possible checksum byte */
3108 XPUSHs(sv_2mortal(sv));
3113 if (strchr("fFdD", datumtype) ||
3114 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3118 while (checksum >= 16) {
3122 while (checksum >= 4) {
3128 along = (1 << checksum) - 1;
3129 while (cdouble < 0.0)
3131 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3132 sv_setnv(sv, cdouble);
3135 if (checksum < 32) {
3136 along = (1 << checksum) - 1;
3137 culong &= (U32)along;
3139 sv_setnv(sv, (double)culong);
3141 XPUSHs(sv_2mortal(sv));
3145 if (sp == oldsp && GIMME != G_ARRAY)
3151 doencodes(sv, s, len)
3159 sv_catpvn(sv, hunk, 1);
3162 hunk[0] = ' ' + (077 & (*s >> 2));
3163 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3164 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3165 hunk[3] = ' ' + (077 & (s[2] & 077));
3166 sv_catpvn(sv, hunk, 4);
3170 for (s = SvPVX(sv); *s; s++) {
3174 sv_catpvn(sv, "\n", 1);
3182 SV *result = newSVpv("", l);
3183 char *result_c = SvPV(result, na); /* convenience */
3184 char *out = result_c;
3194 SvREFCNT_dec(result);
3217 SvREFCNT_dec(result);
3223 SvCUR_set(result, out - result_c);
3229 SV *pnum; /* must be '\0' terminated */
3233 char *s = SvPV(pnum, len);
3242 i = m * 10 + (*t - '0');
3244 r = (i >> 7); /* r < 10 */
3251 SvCUR_set(pnum, (STRLEN) (t - s));
3258 dSP; dMARK; dORIGMARK; dTARGET;
3259 register SV *cat = TARG;
3262 register char *pat = SvPVx(*++MARK, fromlen);
3263 register char *patend = pat + fromlen;
3268 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3269 static char *space10 = " ";
3271 /* These must not be in registers: */
3280 unsigned Quad_t auquad;
3288 sv_setpvn(cat, "", 0);
3289 while (pat < patend) {
3290 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3293 len = strchr("@Xxu", datumtype) ? 0 : items;
3296 else if (isDIGIT(*pat)) {
3298 while (isDIGIT(*pat))
3299 len = (len * 10) + (*pat++ - '0');
3307 DIE("%% may only be used in unpack");
3318 if (SvCUR(cat) < len)
3319 DIE("X outside of string");
3326 sv_catpvn(cat, null10, 10);
3329 sv_catpvn(cat, null10, len);
3334 aptr = SvPV(fromstr, fromlen);
3338 sv_catpvn(cat, aptr, len);
3340 sv_catpvn(cat, aptr, fromlen);
3342 if (datumtype == 'A') {
3344 sv_catpvn(cat, space10, 10);
3347 sv_catpvn(cat, space10, len);
3351 sv_catpvn(cat, null10, 10);
3354 sv_catpvn(cat, null10, len);
3361 char *savepat = pat;
3366 aptr = SvPV(fromstr, fromlen);
3371 SvCUR(cat) += (len+7)/8;
3372 SvGROW(cat, SvCUR(cat) + 1);
3373 aptr = SvPVX(cat) + aint;
3378 if (datumtype == 'B') {
3379 for (len = 0; len++ < aint;) {
3380 items |= *pat++ & 1;
3384 *aptr++ = items & 0xff;
3390 for (len = 0; len++ < aint;) {
3396 *aptr++ = items & 0xff;
3402 if (datumtype == 'B')
3403 items <<= 7 - (aint & 7);
3405 items >>= 7 - (aint & 7);
3406 *aptr++ = items & 0xff;
3408 pat = SvPVX(cat) + SvCUR(cat);
3419 char *savepat = pat;
3424 aptr = SvPV(fromstr, fromlen);
3429 SvCUR(cat) += (len+1)/2;
3430 SvGROW(cat, SvCUR(cat) + 1);
3431 aptr = SvPVX(cat) + aint;
3436 if (datumtype == 'H') {
3437 for (len = 0; len++ < aint;) {
3439 items |= ((*pat++ & 15) + 9) & 15;
3441 items |= *pat++ & 15;
3445 *aptr++ = items & 0xff;
3451 for (len = 0; len++ < aint;) {
3453 items |= (((*pat++ & 15) + 9) & 15) << 4;
3455 items |= (*pat++ & 15) << 4;
3459 *aptr++ = items & 0xff;
3465 *aptr++ = items & 0xff;
3466 pat = SvPVX(cat) + SvCUR(cat);
3478 aint = SvIV(fromstr);
3480 sv_catpvn(cat, &achar, sizeof(char));
3483 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3488 afloat = (float)SvNV(fromstr);
3489 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3496 adouble = (double)SvNV(fromstr);
3497 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3503 ashort = (I16)SvIV(fromstr);
3505 ashort = htons(ashort);
3507 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3513 ashort = (I16)SvIV(fromstr);
3515 ashort = htovs(ashort);
3517 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3524 ashort = (I16)SvIV(fromstr);
3525 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3531 auint = U_I(SvNV(fromstr));
3532 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3538 adouble = floor(SvNV(fromstr));
3541 croak("Cannot compress negative numbers");
3543 if (adouble <= UV_MAX) {
3544 char buf[1 + sizeof(UV)];
3545 char *in = buf + sizeof(buf);
3546 UV auv = U_V(adouble);;
3549 *--in = (auv & 0x7f) | 0x80;
3552 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3553 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3555 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3556 char *from, *result, *in;
3561 /* Copy string and check for compliance */
3562 from = SvPV(fromstr, len);
3563 if ((norm = is_an_int(from, len)) == NULL)
3564 croak("can compress only unsigned integer");
3566 New('w', result, len, char);
3570 *--in = div128(norm, &done) | 0x80;
3571 result[len - 1] &= 0x7F; /* clear continue bit */
3572 sv_catpvn(cat, in, (result + len) - in);
3574 SvREFCNT_dec(norm); /* free norm */
3576 else if (SvNOKp(fromstr)) {
3577 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3578 char *in = buf + sizeof(buf);
3581 double next = floor(adouble / 128);
3582 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3583 if (--in < buf) /* this cannot happen ;-) */
3584 croak ("Cannot compress integer");
3586 } while (adouble > 0);
3587 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3588 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3591 croak("Cannot compress non integer");
3597 aint = SvIV(fromstr);
3598 sv_catpvn(cat, (char*)&aint, sizeof(int));
3604 aulong = U_L(SvNV(fromstr));
3606 aulong = htonl(aulong);
3608 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3614 aulong = U_L(SvNV(fromstr));
3616 aulong = htovl(aulong);
3618 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3624 aulong = U_L(SvNV(fromstr));
3625 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3631 along = SvIV(fromstr);
3632 sv_catpvn(cat, (char*)&along, sizeof(I32));
3639 auquad = (unsigned Quad_t)SvIV(fromstr);
3640 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3646 aquad = (Quad_t)SvIV(fromstr);
3647 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3650 #endif /* HAS_QUAD */
3652 len = 1; /* assume SV is correct length */
3657 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3658 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3663 aptr = SvPV(fromstr, fromlen);
3664 SvGROW(cat, fromlen * 4 / 3);
3669 while (fromlen > 0) {
3676 doencodes(cat, aptr, todo);
3694 register I32 limit = POPi; /* note, negative is forever */
3697 register char *s = SvPV(sv, len);
3698 char *strend = s + len;
3699 register PMOP *pm = (PMOP*)POPs;
3703 I32 maxiters = (strend - s) + 10;
3706 I32 origlimit = limit;
3709 AV *oldstack = curstack;
3710 register REGEXP *rx = pm->op_pmregexp;
3712 I32 oldsave = savestack_ix;
3715 DIE("panic: do_split");
3717 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3718 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3720 if (pm->op_pmreplroot)
3721 ary = GvAVn((GV*)pm->op_pmreplroot);
3722 else if (gimme != G_ARRAY)
3726 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3730 for (i = AvFILL(ary); i >= 0; i--)
3731 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3735 /* temporarily switch stacks */
3736 SWITCHSTACK(curstack, ary);
3738 base = SP - stack_base;
3740 if (pm->op_pmflags & PMf_SKIPWHITE) {
3741 if (pm->op_pmflags & PMf_LOCALE) {
3742 while (isSPACE_LC(*s))
3750 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3752 multiline = pm->op_pmflags & PMf_MULTILINE;
3756 limit = maxiters + 2;
3757 if (pm->op_pmflags & PMf_WHITE) {
3760 while (m < strend &&
3761 !((pm->op_pmflags & PMf_LOCALE)
3762 ? isSPACE_LC(*m) : isSPACE(*m)))
3767 dstr = NEWSV(30, m-s);
3768 sv_setpvn(dstr, s, m-s);
3774 while (s < strend &&
3775 ((pm->op_pmflags & PMf_LOCALE)
3776 ? isSPACE_LC(*s) : isSPACE(*s)))
3780 else if (strEQ("^", rx->precomp)) {
3783 for (m = s; m < strend && *m != '\n'; m++) ;
3787 dstr = NEWSV(30, m-s);
3788 sv_setpvn(dstr, s, m-s);
3795 else if (pm->op_pmshort) {
3796 i = SvCUR(pm->op_pmshort);
3798 i = *SvPVX(pm->op_pmshort);
3801 for (m = s; m < strend && *m != i; m++) ;
3804 dstr = NEWSV(30, m-s);
3805 sv_setpvn(dstr, s, m-s);
3814 while (s < strend && --limit &&
3815 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3819 dstr = NEWSV(31, m-s);
3820 sv_setpvn(dstr, s, m-s);
3829 maxiters += (strend - s) * rx->nparens;
3830 while (s < strend && --limit &&
3831 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3833 TAINT_IF(rx->exec_tainted);
3835 && rx->subbase != orig) {
3840 strend = s + (strend - m);
3843 dstr = NEWSV(32, m-s);
3844 sv_setpvn(dstr, s, m-s);
3849 for (i = 1; i <= rx->nparens; i++) {
3853 dstr = NEWSV(33, m-s);
3854 sv_setpvn(dstr, s, m-s);
3857 dstr = NEWSV(33, 0);
3866 LEAVE_SCOPE(oldsave);
3867 iters = (SP - stack_base) - base;
3868 if (iters > maxiters)
3871 /* keep field after final delim? */
3872 if (s < strend || (iters && origlimit)) {
3873 dstr = NEWSV(34, strend-s);
3874 sv_setpvn(dstr, s, strend-s);
3880 else if (!origlimit) {
3881 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3885 SWITCHSTACK(ary, oldstack);
3886 if (gimme == G_ARRAY) {
3888 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3894 if (gimme == G_ARRAY)
3897 if (iters || !pm->op_pmreplroot) {