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_PVCV) {
124 } else if (SvTYPE(sv) != SVt_PVGV)
125 DIE("Not a GLOB reference");
128 if (SvTYPE(sv) != SVt_PVGV) {
131 if (SvGMAGICAL(sv)) {
137 if (op->op_flags & OPf_REF ||
138 op->op_private & HINT_STRICT_REFS)
139 DIE(no_usym, "a symbol");
143 if (op->op_private & HINT_STRICT_REFS)
144 DIE(no_symref, sym, "a symbol");
145 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
148 if (op->op_private & OPpLVAL_INTRO)
149 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
161 switch (SvTYPE(sv)) {
165 DIE("Not a SCALAR reference");
172 if (SvTYPE(gv) != SVt_PVGV) {
173 if (SvGMAGICAL(sv)) {
179 if (op->op_flags & OPf_REF ||
180 op->op_private & HINT_STRICT_REFS)
181 DIE(no_usym, "a SCALAR");
185 if (op->op_private & HINT_STRICT_REFS)
186 DIE(no_symref, sym, "a SCALAR");
187 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
191 if (op->op_flags & OPf_MOD) {
192 if (op->op_private & OPpLVAL_INTRO)
193 sv = save_scalar((GV*)TOPs);
194 else if (op->op_private & OPpDEREF)
205 SV *sv = AvARYLEN(av);
207 AvARYLEN(av) = sv = NEWSV(0,0);
208 sv_upgrade(sv, SVt_IV);
209 sv_magic(sv, (SV*)av, '#', Nullch, 0);
217 dSP; dTARGET; dPOPss;
219 if (op->op_flags & OPf_MOD) {
220 if (SvTYPE(TARG) < SVt_PVLV) {
221 sv_upgrade(TARG, SVt_PVLV);
222 sv_magic(TARG, Nullsv, '.', Nullch, 0);
227 PUSHs(TARG); /* no SvSETMAGIC */
233 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
234 mg = mg_find(sv, 'g');
235 if (mg && mg->mg_len >= 0) {
236 PUSHi(mg->mg_len + curcop->cop_arybase);
250 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
251 /* (But not in defined().) */
252 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
255 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
272 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
274 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
282 CV* cv = (CV*)curpad[op->op_targ];
284 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
300 if (GIMME != G_ARRAY) {
304 EXTEND_MORTAL(SP - MARK);
306 *MARK = refto(*MARK);
316 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
322 else if (SvPADTMP(sv))
326 (void)SvREFCNT_inc(sv);
329 sv_upgrade(rv, SVt_RV);
343 if (sv && SvGMAGICAL(sv))
346 if (!sv || !SvROK(sv))
350 pv = sv_reftype(sv,TRUE);
351 PUSHp(pv, strlen(pv));
361 stash = curcop->cop_stash;
363 stash = gv_stashsv(POPs, TRUE);
365 (void)sv_bless(TOPs, stash);
369 /* Pattern matching */
374 register unsigned char *s;
377 register I32 *sfirst;
382 s = (unsigned char*)(SvPV(sv, len));
384 if (sv == lastscream)
388 SvSCREAM_off(lastscream);
389 SvREFCNT_dec(lastscream);
391 lastscream = SvREFCNT_inc(sv);
397 if (pos > maxscream) {
399 maxscream = pos + 80;
400 New(301, screamfirst, 256, I32);
401 New(302, screamnext, maxscream, I32);
404 maxscream = pos + pos / 4;
405 Renew(screamnext, maxscream, I32);
409 sfirst = screamfirst;
412 if (!sfirst || !snext)
413 DIE("do_study: out of memory");
415 for (ch = 256; ch; --ch)
422 snext[pos] = sfirst[ch] - pos;
429 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
432 XPUSHs(sv_2mortal(newSViv((I32)retval)));
441 if (op->op_flags & OPf_STACKED)
447 TARG = sv_newmortal();
448 PUSHi(do_trans(sv, op));
452 /* Lvalue operators. */
474 SETi(do_chomp(TOPs));
481 register I32 count = 0;
484 count += do_chomp(POPs);
495 if (!sv || !SvANY(sv))
497 switch (SvTYPE(sv)) {
499 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
503 if (HvARRAY(sv) || SvRMAGICAL(sv))
507 if (CvROOT(sv) || CvXSUB(sv))
531 if (SvTHINKFIRST(sv)) {
538 switch (SvTYPE(sv)) {
553 sv_setsv(sv, &sv_undef);
557 if (SvPOK(sv) && SvLEN(sv)) {
560 SvPV_set(sv, Nullch);
573 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
574 SvIVX(TOPs) != IV_MIN)
577 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
588 sv_setsv(TARG, TOPs);
589 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
590 SvIVX(TOPs) != IV_MAX)
593 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
607 sv_setsv(TARG, TOPs);
608 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
609 SvIVX(TOPs) != IV_MIN)
612 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
621 /* Ordinary operators. */
625 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
628 SETn( pow( left, right) );
635 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
638 SETn( left * right );
645 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
650 DIE("Illegal division by zero");
652 /* insure that 20./5. == 4. */
655 if ((double)I_V(left) == left &&
656 (double)I_V(right) == right &&
657 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
660 value = left / right;
664 value = left / right;
673 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
679 DIE("Illegal modulus zero");
681 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
682 register IV left = SvIVX(TOPs);
684 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
686 SETi( left % right );
689 register double left = TOPn;
691 SETu( (right - (U_V(-left) - 1) % right) - 1 );
693 SETu( U_V(left) % right );
701 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
703 register I32 count = POPi;
704 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
706 I32 items = SP - MARK;
718 repeatcpy((char*)(MARK + items), (char*)MARK,
719 items * sizeof(SV*), count - 1);
725 else { /* Note: mark already snarfed by pp_list */
730 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
731 if (SvREADONLY(tmpstr) && curcop != &compiling)
732 DIE("Can't x= to readonly value");
736 SvSetSV(TARG, tmpstr);
737 SvPV_force(TARG, len);
742 SvGROW(TARG, (count * len) + 1);
743 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
744 SvCUR(TARG) *= count;
748 (void)SvPOK_only(TARG);
757 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
760 SETn( left - right );
767 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
770 if (op->op_private & HINT_INTEGER) {
784 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
787 if (op->op_private & HINT_INTEGER) {
801 dSP; tryAMAGICbinSET(lt,0);
804 SETs((TOPn < value) ? &sv_yes : &sv_no);
811 dSP; tryAMAGICbinSET(gt,0);
814 SETs((TOPn > value) ? &sv_yes : &sv_no);
821 dSP; tryAMAGICbinSET(le,0);
824 SETs((TOPn <= value) ? &sv_yes : &sv_no);
831 dSP; tryAMAGICbinSET(ge,0);
834 SETs((TOPn >= value) ? &sv_yes : &sv_no);
841 dSP; tryAMAGICbinSET(ne,0);
844 SETs((TOPn != value) ? &sv_yes : &sv_no);
851 dSP; dTARGET; tryAMAGICbin(ncmp,0);
858 else if (left < right)
869 dSP; tryAMAGICbinSET(slt,0);
872 int cmp = ((op->op_private & OPpLOCALE)
873 ? sv_cmp_locale(left, right)
874 : sv_cmp(left, right));
875 SETs( cmp < 0 ? &sv_yes : &sv_no );
882 dSP; tryAMAGICbinSET(sgt,0);
885 int cmp = ((op->op_private & OPpLOCALE)
886 ? sv_cmp_locale(left, right)
887 : sv_cmp(left, right));
888 SETs( cmp > 0 ? &sv_yes : &sv_no );
895 dSP; tryAMAGICbinSET(sle,0);
898 int cmp = ((op->op_private & OPpLOCALE)
899 ? sv_cmp_locale(left, right)
900 : sv_cmp(left, right));
901 SETs( cmp <= 0 ? &sv_yes : &sv_no );
908 dSP; tryAMAGICbinSET(sge,0);
911 int cmp = ((op->op_private & OPpLOCALE)
912 ? sv_cmp_locale(left, right)
913 : sv_cmp(left, right));
914 SETs( cmp >= 0 ? &sv_yes : &sv_no );
921 dSP; tryAMAGICbinSET(seq,0);
924 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
931 dSP; tryAMAGICbinSET(sne,0);
934 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
941 dSP; dTARGET; tryAMAGICbin(scmp,0);
944 int cmp = ((op->op_private & OPpLOCALE)
945 ? sv_cmp_locale(left, right)
946 : sv_cmp(left, right));
954 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
957 if (SvNIOKp(left) || SvNIOKp(right)) {
958 if (op->op_private & HINT_INTEGER) {
959 IBW value = SvIV(left) & SvIV(right);
963 UBW value = SvUV(left) & SvUV(right);
968 do_vop(op->op_type, TARG, left, right);
977 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
980 if (SvNIOKp(left) || SvNIOKp(right)) {
981 if (op->op_private & HINT_INTEGER) {
982 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
986 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
991 do_vop(op->op_type, TARG, left, right);
1000 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1003 if (SvNIOKp(left) || SvNIOKp(right)) {
1004 if (op->op_private & HINT_INTEGER) {
1005 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1009 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1014 do_vop(op->op_type, TARG, left, right);
1023 dSP; dTARGET; tryAMAGICun(neg);
1028 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1030 else if (SvNIOKp(sv))
1032 else if (SvPOKp(sv)) {
1034 char *s = SvPV(sv, len);
1035 if (isIDFIRST(*s)) {
1036 sv_setpvn(TARG, "-", 1);
1039 else if (*s == '+' || *s == '-') {
1041 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1044 sv_setnv(TARG, -SvNV(sv));
1056 dSP; tryAMAGICunSET(not);
1057 #endif /* OVERLOAD */
1058 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1064 dSP; dTARGET; tryAMAGICun(compl);
1068 if (op->op_private & HINT_INTEGER) {
1069 IBW value = ~SvIV(sv);
1073 UBW value = ~SvUV(sv);
1078 register char *tmps;
1079 register long *tmpl;
1084 tmps = SvPV_force(TARG, len);
1087 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1090 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1094 for ( ; anum > 0; anum--, tmps++)
1103 /* integer versions of some of the above */
1107 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1110 SETi( left * right );
1117 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1121 DIE("Illegal division by zero");
1122 value = POPi / value;
1130 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1133 SETi( left % right );
1140 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1143 SETi( left + right );
1150 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1153 SETi( left - right );
1160 dSP; tryAMAGICbinSET(lt,0);
1163 SETs((left < right) ? &sv_yes : &sv_no);
1170 dSP; tryAMAGICbinSET(gt,0);
1173 SETs((left > right) ? &sv_yes : &sv_no);
1180 dSP; tryAMAGICbinSET(le,0);
1183 SETs((left <= right) ? &sv_yes : &sv_no);
1190 dSP; tryAMAGICbinSET(ge,0);
1193 SETs((left >= right) ? &sv_yes : &sv_no);
1200 dSP; tryAMAGICbinSET(eq,0);
1203 SETs((left == right) ? &sv_yes : &sv_no);
1210 dSP; tryAMAGICbinSET(ne,0);
1213 SETs((left != right) ? &sv_yes : &sv_no);
1220 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1227 else if (left < right)
1238 dSP; dTARGET; tryAMAGICun(neg);
1243 /* High falutin' math. */
1247 dSP; dTARGET; tryAMAGICbin(atan2,0);
1250 SETn(atan2(left, right));
1257 dSP; dTARGET; tryAMAGICun(sin);
1269 dSP; dTARGET; tryAMAGICun(cos);
1290 value = rand() * value / 2147483648.0;
1293 value = rand() * value / 65536.0;
1296 value = rand() * value / 32768.0;
1298 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1313 # include <starlet.h>
1314 unsigned int when[2];
1315 _ckvmssts(sys$gettim(when));
1316 anum = when[0] ^ when[1];
1318 # ifdef HAS_GETTIMEOFDAY
1319 struct timeval when;
1320 gettimeofday(&when,(struct timezone *) 0);
1321 anum = when.tv_sec ^ when.tv_usec;
1328 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1329 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1330 /* What is a good hashing algorithm here? */
1331 anum ^= ( ( 269 * (U32)getpid())
1332 ^ (26107 * (U32)&when)
1333 ^ (73819 * (U32)stack_sp));
1345 dSP; dTARGET; tryAMAGICun(exp);
1357 dSP; dTARGET; tryAMAGICun(log);
1362 SET_NUMERIC_STANDARD();
1363 DIE("Can't take log of %g", value);
1373 dSP; dTARGET; tryAMAGICun(sqrt);
1378 SET_NUMERIC_STANDARD();
1379 DIE("Can't take sqrt of %g", value);
1381 value = sqrt(value);
1393 (void)modf(value, &value);
1395 (void)modf(-value, &value);
1404 dSP; dTARGET; tryAMAGICun(abs);
1424 XPUSHu(scan_hex(tmps, 99, &argtype));
1436 while (*tmps && isSPACE(*tmps))
1441 value = scan_hex(++tmps, 99, &argtype);
1443 value = scan_oct(tmps, 99, &argtype);
1453 SETi( sv_len(TOPs) );
1465 I32 lvalue = op->op_flags & OPf_MOD;
1467 I32 arybase = curcop->cop_arybase;
1471 pos = POPi - arybase;
1473 tmps = SvPV(sv, curlen);
1475 pos += curlen + arybase;
1476 if (pos < 0 || pos > curlen) {
1477 if (dowarn || lvalue)
1478 warn("substr outside of string");
1485 len += curlen - pos;
1490 rem = curlen - pos; /* rem=how many bytes left*/
1493 sv_setpvn(TARG, tmps, rem);
1494 if (lvalue) { /* it's an lvalue! */
1495 if (!SvGMAGICAL(sv)) {
1499 warn("Attempt to use reference as lvalue in substr");
1501 if (SvOK(sv)) /* is it defined ? */
1502 (void)SvPOK_only(sv);
1504 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1507 if (SvTYPE(TARG) < SVt_PVLV) {
1508 sv_upgrade(TARG, SVt_PVLV);
1509 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1514 LvTARGOFF(TARG) = pos;
1515 LvTARGLEN(TARG) = rem;
1518 PUSHs(TARG); /* avoid SvSETMAGIC here */
1525 register I32 size = POPi;
1526 register I32 offset = POPi;
1527 register SV *src = POPs;
1528 I32 lvalue = op->op_flags & OPf_MOD;
1530 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1531 unsigned long retnum;
1534 offset *= size; /* turn into bit offset */
1535 len = (offset + size + 7) / 8;
1536 if (offset < 0 || size < 1)
1539 if (lvalue) { /* it's an lvalue! */
1540 if (SvTYPE(TARG) < SVt_PVLV) {
1541 sv_upgrade(TARG, SVt_PVLV);
1542 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1547 LvTARGOFF(TARG) = offset;
1548 LvTARGLEN(TARG) = size;
1556 if (offset >= srclen)
1559 retnum = (unsigned long) s[offset] << 8;
1561 else if (size == 32) {
1562 if (offset >= srclen)
1564 else if (offset + 1 >= srclen)
1565 retnum = (unsigned long) s[offset] << 24;
1566 else if (offset + 2 >= srclen)
1567 retnum = ((unsigned long) s[offset] << 24) +
1568 ((unsigned long) s[offset + 1] << 16);
1570 retnum = ((unsigned long) s[offset] << 24) +
1571 ((unsigned long) s[offset + 1] << 16) +
1572 (s[offset + 2] << 8);
1577 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1582 else if (size == 16)
1583 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1584 else if (size == 32)
1585 retnum = ((unsigned long) s[offset] << 24) +
1586 ((unsigned long) s[offset + 1] << 16) +
1587 (s[offset + 2] << 8) + s[offset+3];
1591 sv_setiv(TARG, (I32)retnum);
1606 I32 arybase = curcop->cop_arybase;
1611 offset = POPi - arybase;
1614 tmps = SvPV(big, biglen);
1617 else if (offset > biglen)
1619 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1620 (unsigned char*)tmps + biglen, little)))
1621 retval = -1 + arybase;
1623 retval = tmps2 - tmps + arybase;
1640 I32 arybase = curcop->cop_arybase;
1646 tmps2 = SvPV(little, llen);
1647 tmps = SvPV(big, blen);
1651 offset = SvIV(offstr) - arybase + llen;
1654 else if (offset > blen)
1656 if (!(tmps2 = rninstr(tmps, tmps + offset,
1657 tmps2, tmps2 + llen)))
1658 retval = -1 + arybase;
1660 retval = tmps2 - tmps + arybase;
1667 dSP; dMARK; dORIGMARK; dTARGET;
1668 #ifdef USE_LOCALE_NUMERIC
1669 if (op->op_private & OPpLOCALE)
1670 SET_NUMERIC_LOCAL();
1672 SET_NUMERIC_STANDARD();
1674 do_sprintf(TARG, SP-MARK, MARK+1);
1675 TAINT_IF(SvTAINTED(TARG));
1689 value = (I32) (*tmps & 255);
1694 value = (I32) (anum & 255);
1705 (void)SvUPGRADE(TARG,SVt_PV);
1711 (void)SvPOK_only(TARG);
1718 dSP; dTARGET; dPOPTOPssrl;
1720 char *tmps = SvPV(left, na);
1722 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1724 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1728 "The crypt() function is unimplemented due to excessive paranoia.");
1740 if (!SvPADTMP(sv)) {
1746 s = SvPV_force(sv, na);
1748 if (op->op_private & OPpLOCALE) {
1751 *s = toUPPER_LC(*s);
1766 if (!SvPADTMP(sv)) {
1772 s = SvPV_force(sv, na);
1774 if (op->op_private & OPpLOCALE) {
1777 *s = toLOWER_LC(*s);
1794 if (!SvPADTMP(sv)) {
1801 s = SvPV_force(sv, len);
1803 register char *send = s + len;
1805 if (op->op_private & OPpLOCALE) {
1808 for (; s < send; s++)
1809 *s = toUPPER_LC(*s);
1812 for (; s < send; s++)
1826 if (!SvPADTMP(sv)) {
1833 s = SvPV_force(sv, len);
1835 register char *send = s + len;
1837 if (op->op_private & OPpLOCALE) {
1840 for (; s < send; s++)
1841 *s = toLOWER_LC(*s);
1844 for (; s < send; s++)
1856 register char *s = SvPV(sv,len);
1860 (void)SvUPGRADE(TARG, SVt_PV);
1861 SvGROW(TARG, (len * 2) + 1);
1869 SvCUR_set(TARG, d - SvPVX(TARG));
1870 (void)SvPOK_only(TARG);
1873 sv_setpvn(TARG, s, len);
1882 dSP; dMARK; dORIGMARK;
1884 register AV* av = (AV*)POPs;
1885 register I32 lval = op->op_flags & OPf_MOD;
1886 I32 arybase = curcop->cop_arybase;
1889 if (SvTYPE(av) == SVt_PVAV) {
1890 if (lval && op->op_private & OPpLVAL_INTRO) {
1892 for (svp = mark + 1; svp <= sp; svp++) {
1897 if (max > AvMAX(av))
1900 while (++MARK <= SP) {
1901 elem = SvIVx(*MARK);
1905 svp = av_fetch(av, elem, lval);
1907 if (!svp || *svp == &sv_undef)
1908 DIE(no_aelem, elem);
1909 if (op->op_private & OPpLVAL_INTRO)
1912 *MARK = svp ? *svp : &sv_undef;
1915 if (GIMME != G_ARRAY) {
1923 /* Associative arrays. */
1928 HV *hash = (HV*)POPs;
1932 entry = hv_iternext(hash); /* might clobber stack_sp */
1937 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1938 if (GIMME == G_ARRAY) {
1940 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1945 else if (GIMME == G_SCALAR)
1967 if (op->op_private & OPpSLICE) {
1970 if (SvTYPE(hv) != SVt_PVHV)
1971 DIE("Not a HASH reference");
1972 while (++MARK <= SP) {
1973 sv = hv_delete_ent(hv, *MARK,
1974 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1975 *MARK = sv ? sv : &sv_undef;
1977 if (GIMME != G_ARRAY) {
1986 if (SvTYPE(hv) != SVt_PVHV)
1987 DIE("Not a HASH reference");
1988 sv = hv_delete_ent(hv, keysv,
1989 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2003 if (SvTYPE(hv) != SVt_PVHV) {
2004 DIE("Not a HASH reference");
2006 if (hv_exists_ent(hv, tmpsv, 0))
2013 dSP; dMARK; dORIGMARK;
2015 register HV *hv = (HV*)POPs;
2016 register I32 lval = op->op_flags & OPf_MOD;
2018 if (SvTYPE(hv) == SVt_PVHV) {
2019 while (++MARK <= SP) {
2022 he = hv_fetch_ent(hv, keysv, lval, 0);
2024 if (!he || HeVAL(he) == &sv_undef)
2025 DIE(no_helem, SvPV(keysv, na));
2026 if (op->op_private & OPpLVAL_INTRO)
2027 save_svref(&HeVAL(he));
2029 *MARK = he ? HeVAL(he) : &sv_undef;
2032 if (GIMME != G_ARRAY) {
2040 /* List operators. */
2045 if (GIMME != G_ARRAY) {
2047 *MARK = *SP; /* unwanted list, return last item */
2058 SV **lastrelem = stack_sp;
2059 SV **lastlelem = stack_base + POPMARK;
2060 SV **firstlelem = stack_base + POPMARK + 1;
2061 register SV **firstrelem = lastlelem + 1;
2062 I32 arybase = curcop->cop_arybase;
2063 I32 lval = op->op_flags & OPf_MOD;
2064 I32 is_something_there = lval;
2066 register I32 max = lastrelem - lastlelem;
2067 register SV **lelem;
2070 if (GIMME != G_ARRAY) {
2071 ix = SvIVx(*lastlelem);
2076 if (ix < 0 || ix >= max)
2077 *firstlelem = &sv_undef;
2079 *firstlelem = firstrelem[ix];
2085 SP = firstlelem - 1;
2089 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2095 else if (!(*lelem = firstrelem[ix]))
2100 if (ix >= max || !(*lelem = firstrelem[ix]))
2103 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2104 is_something_there = TRUE;
2106 if (is_something_there)
2109 SP = firstlelem - 1;
2115 dSP; dMARK; dORIGMARK;
2116 I32 items = SP - MARK;
2117 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2118 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2125 dSP; dMARK; dORIGMARK;
2126 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2130 SV *val = NEWSV(46, 0);
2132 sv_setsv(val, *++MARK);
2134 warn("Odd number of elements in hash list");
2135 (void)hv_store_ent(hv,key,val,0);
2144 dSP; dMARK; dORIGMARK;
2145 register AV *ary = (AV*)*++MARK;
2149 register I32 offset;
2150 register I32 length;
2159 offset = SvIVx(*MARK);
2161 offset += AvFILL(ary) + 1;
2163 offset -= curcop->cop_arybase;
2165 length = SvIVx(*MARK++);
2170 length = AvMAX(ary) + 1; /* close enough to infinity */
2174 length = AvMAX(ary) + 1;
2182 if (offset > AvFILL(ary) + 1)
2183 offset = AvFILL(ary) + 1;
2184 after = AvFILL(ary) + 1 - (offset + length);
2185 if (after < 0) { /* not that much array */
2186 length += after; /* offset+length now in array */
2192 /* At this point, MARK .. SP-1 is our new LIST */
2195 diff = newlen - length;
2197 if (diff < 0) { /* shrinking the area */
2199 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2200 Copy(MARK, tmparyval, newlen, SV*);
2203 MARK = ORIGMARK + 1;
2204 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2205 MEXTEND(MARK, length);
2206 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2208 EXTEND_MORTAL(length);
2209 for (i = length, dst = MARK; i; i--) {
2210 if (!SvIMMORTAL(*dst))
2211 sv_2mortal(*dst); /* free them eventualy */
2218 *MARK = AvARRAY(ary)[offset+length-1];
2220 if (!SvIMMORTAL(*MARK))
2222 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2223 SvREFCNT_dec(*dst++); /* free them now */
2226 AvFILL(ary) += diff;
2228 /* pull up or down? */
2230 if (offset < after) { /* easier to pull up */
2231 if (offset) { /* esp. if nothing to pull */
2232 src = &AvARRAY(ary)[offset-1];
2233 dst = src - diff; /* diff is negative */
2234 for (i = offset; i > 0; i--) /* can't trust Copy */
2238 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2242 if (after) { /* anything to pull down? */
2243 src = AvARRAY(ary) + offset + length;
2244 dst = src + diff; /* diff is negative */
2245 Move(src, dst, after, SV*);
2247 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2248 /* avoid later double free */
2252 dst[--i] = &sv_undef;
2255 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2257 *dst = NEWSV(46, 0);
2258 sv_setsv(*dst++, *src++);
2260 Safefree(tmparyval);
2263 else { /* no, expanding (or same) */
2265 New(452, tmparyval, length, SV*); /* so remember deletion */
2266 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2269 if (diff > 0) { /* expanding */
2271 /* push up or down? */
2273 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2277 Move(src, dst, offset, SV*);
2279 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2281 AvFILL(ary) += diff;
2284 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2285 av_extend(ary, AvFILL(ary) + diff);
2286 AvFILL(ary) += diff;
2289 dst = AvARRAY(ary) + AvFILL(ary);
2291 for (i = after; i; i--) {
2298 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2299 *dst = NEWSV(46, 0);
2300 sv_setsv(*dst++, *src++);
2302 MARK = ORIGMARK + 1;
2303 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2305 Copy(tmparyval, MARK, length, SV*);
2307 EXTEND_MORTAL(length);
2308 for (i = length, dst = MARK; i; i--) {
2309 if (!SvIMMORTAL(*dst))
2310 sv_2mortal(*dst); /* free them eventualy */
2314 Safefree(tmparyval);
2318 else if (length--) {
2319 *MARK = tmparyval[length];
2321 if (!SvIMMORTAL(*MARK))
2323 while (length-- > 0)
2324 SvREFCNT_dec(tmparyval[length]);
2326 Safefree(tmparyval);
2337 dSP; dMARK; dORIGMARK; dTARGET;
2338 register AV *ary = (AV*)*++MARK;
2339 register SV *sv = &sv_undef;
2341 for (++MARK; MARK <= SP; MARK++) {
2344 sv_setsv(sv, *MARK);
2348 PUSHi( AvFILL(ary) + 1 );
2356 SV *sv = av_pop(av);
2357 if (!SvIMMORTAL(sv) && AvREAL(av))
2358 (void)sv_2mortal(sv);
2367 SV *sv = av_shift(av);
2371 if (!SvIMMORTAL(sv) && AvREAL(av))
2372 (void)sv_2mortal(sv);
2379 dSP; dMARK; dORIGMARK; dTARGET;
2380 register AV *ary = (AV*)*++MARK;
2384 av_unshift(ary, SP - MARK);
2387 sv_setsv(sv, *++MARK);
2388 (void)av_store(ary, i++, sv);
2392 PUSHi( AvFILL(ary) + 1 );
2402 if (GIMME == G_ARRAY) {
2413 register char *down;
2419 do_join(TARG, &sv_no, MARK, SP);
2421 sv_setsv(TARG, *SP);
2422 up = SvPV_force(TARG, len);
2424 down = SvPVX(TARG) + len - 1;
2430 (void)SvPOK_only(TARG);
2444 char *s = SvPV(sv, len);
2448 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2449 SV *new = newSVpv("0000000000", 10);
2452 SvREFCNT_dec(sv); /* free old sv */
2457 while (!*t) /* trailing '\0'? */
2460 i = ((*t - '0') << 7) + m;
2461 *(t--) = '0' + (i % 10);
2467 /* Explosives and implosives. */
2477 register char *pat = SvPV(left, llen);
2478 register char *s = SvPV(right, rlen);
2479 char *strend = s + rlen;
2481 register char *patend = pat + llen;
2486 /* These must not be in registers: */
2497 unsigned Quad_t auquad;
2503 register U32 culong;
2505 static char* bitcount = 0;
2507 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2509 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2510 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2512 while (isDIGIT(*patend) || *patend == '*')
2518 while (pat < patend) {
2523 else if (*pat == '*') {
2524 len = strend - strbeg; /* long enough */
2527 else if (isDIGIT(*pat)) {
2529 while (isDIGIT(*pat))
2530 len = (len * 10) + (*pat++ - '0');
2533 len = (datumtype != '@');
2538 if (len == 1 && pat[-1] != '1')
2547 if (len > strend - strbeg)
2548 DIE("@ outside of string");
2552 if (len > s - strbeg)
2553 DIE("X outside of string");
2557 if (len > strend - s)
2558 DIE("x outside of string");
2563 if (len > strend - s)
2566 goto uchar_checksum;
2567 sv = NEWSV(35, len);
2568 sv_setpvn(sv, s, len);
2570 if (datumtype == 'A') {
2571 aptr = s; /* borrow register */
2572 s = SvPVX(sv) + len - 1;
2573 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2576 SvCUR_set(sv, s - SvPVX(sv));
2577 s = aptr; /* unborrow register */
2579 XPUSHs(sv_2mortal(sv));
2583 if (pat[-1] == '*' || len > (strend - s) * 8)
2584 len = (strend - s) * 8;
2587 Newz(601, bitcount, 256, char);
2588 for (bits = 1; bits < 256; bits++) {
2589 if (bits & 1) bitcount[bits]++;
2590 if (bits & 2) bitcount[bits]++;
2591 if (bits & 4) bitcount[bits]++;
2592 if (bits & 8) bitcount[bits]++;
2593 if (bits & 16) bitcount[bits]++;
2594 if (bits & 32) bitcount[bits]++;
2595 if (bits & 64) bitcount[bits]++;
2596 if (bits & 128) bitcount[bits]++;
2600 culong += bitcount[*(unsigned char*)s++];
2605 if (datumtype == 'b') {
2607 if (bits & 1) culong++;
2613 if (bits & 128) culong++;
2620 sv = NEWSV(35, len + 1);
2623 aptr = pat; /* borrow register */
2625 if (datumtype == 'b') {
2627 for (len = 0; len < aint; len++) {
2628 if (len & 7) /*SUPPRESS 595*/
2632 *pat++ = '0' + (bits & 1);
2637 for (len = 0; len < aint; len++) {
2642 *pat++ = '0' + ((bits & 128) != 0);
2646 pat = aptr; /* unborrow register */
2647 XPUSHs(sv_2mortal(sv));
2651 if (pat[-1] == '*' || len > (strend - s) * 2)
2652 len = (strend - s) * 2;
2653 sv = NEWSV(35, len + 1);
2656 aptr = pat; /* borrow register */
2658 if (datumtype == 'h') {
2660 for (len = 0; len < aint; len++) {
2665 *pat++ = hexdigit[bits & 15];
2670 for (len = 0; len < aint; len++) {
2675 *pat++ = hexdigit[(bits >> 4) & 15];
2679 pat = aptr; /* unborrow register */
2680 XPUSHs(sv_2mortal(sv));
2683 if (len > strend - s)
2688 if (aint >= 128) /* fake up signed chars */
2698 if (aint >= 128) /* fake up signed chars */
2701 sv_setiv(sv, (I32)aint);
2702 PUSHs(sv_2mortal(sv));
2707 if (len > strend - s)
2722 sv_setiv(sv, (I32)auint);
2723 PUSHs(sv_2mortal(sv));
2728 along = (strend - s) / sizeof(I16);
2733 Copy(s, &ashort, 1, I16);
2742 Copy(s, &ashort, 1, I16);
2745 sv_setiv(sv, (I32)ashort);
2746 PUSHs(sv_2mortal(sv));
2753 along = (strend - s) / sizeof(U16);
2758 Copy(s, &aushort, 1, U16);
2761 if (datumtype == 'n')
2762 aushort = ntohs(aushort);
2765 if (datumtype == 'v')
2766 aushort = vtohs(aushort);
2775 Copy(s, &aushort, 1, U16);
2779 if (datumtype == 'n')
2780 aushort = ntohs(aushort);
2783 if (datumtype == 'v')
2784 aushort = vtohs(aushort);
2786 sv_setiv(sv, (I32)aushort);
2787 PUSHs(sv_2mortal(sv));
2792 along = (strend - s) / sizeof(int);
2797 Copy(s, &aint, 1, int);
2800 cdouble += (double)aint;
2809 Copy(s, &aint, 1, int);
2812 sv_setiv(sv, (I32)aint);
2813 PUSHs(sv_2mortal(sv));
2818 along = (strend - s) / sizeof(unsigned int);
2823 Copy(s, &auint, 1, unsigned int);
2824 s += sizeof(unsigned int);
2826 cdouble += (double)auint;
2835 Copy(s, &auint, 1, unsigned int);
2836 s += sizeof(unsigned int);
2838 if (auint <= I32_MAX)
2839 sv_setiv(sv, (I32)auint);
2841 sv_setnv(sv, (double)auint);
2842 PUSHs(sv_2mortal(sv));
2847 along = (strend - s) / sizeof(I32);
2852 Copy(s, &along, 1, I32);
2855 cdouble += (double)along;
2864 Copy(s, &along, 1, I32);
2867 sv_setiv(sv, (I32)along);
2868 PUSHs(sv_2mortal(sv));
2875 along = (strend - s) / sizeof(U32);
2880 Copy(s, &aulong, 1, U32);
2883 if (datumtype == 'N')
2884 aulong = ntohl(aulong);
2887 if (datumtype == 'V')
2888 aulong = vtohl(aulong);
2891 cdouble += (double)aulong;
2900 Copy(s, &aulong, 1, U32);
2904 if (datumtype == 'N')
2905 aulong = ntohl(aulong);
2908 if (datumtype == 'V')
2909 aulong = vtohl(aulong);
2911 sv_setnv(sv, (double)aulong);
2912 PUSHs(sv_2mortal(sv));
2917 along = (strend - s) / sizeof(char*);
2923 if (sizeof(char*) > strend - s)
2926 Copy(s, &aptr, 1, char*);
2932 PUSHs(sv_2mortal(sv));
2942 while ((len > 0) && (s < strend)) {
2943 auv = (auv << 7) | (*s & 0x7f);
2944 if (!(*s++ & 0x80)) {
2948 PUSHs(sv_2mortal(sv));
2952 else if (++bytes >= sizeof(UV)) { /* promote to string */
2953 char decn[sizeof(UV) * 3 + 1];
2956 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2957 sv = newSVpv(decn, 0);
2958 while (s < strend) {
2959 sv = mul128(sv, *s & 0x7f);
2960 if (!(*s++ & 0x80)) {
2969 PUSHs(sv_2mortal(sv));
2974 if ((s >= strend) && bytes)
2975 croak("Unterminated compressed integer");
2980 if (sizeof(char*) > strend - s)
2983 Copy(s, &aptr, 1, char*);
2988 sv_setpvn(sv, aptr, len);
2989 PUSHs(sv_2mortal(sv));
2996 if (s + sizeof(Quad_t) > strend)
2999 Copy(s, &aquad, 1, Quad_t);
3000 s += sizeof(Quad_t);
3003 sv_setiv(sv, (IV)aquad);
3004 PUSHs(sv_2mortal(sv));
3011 if (s + sizeof(unsigned Quad_t) > strend)
3014 Copy(s, &auquad, 1, unsigned Quad_t);
3015 s += sizeof(unsigned Quad_t);
3018 sv_setiv(sv, (IV)auquad);
3019 PUSHs(sv_2mortal(sv));
3023 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3026 along = (strend - s) / sizeof(float);
3031 Copy(s, &afloat, 1, float);
3040 Copy(s, &afloat, 1, float);
3043 sv_setnv(sv, (double)afloat);
3044 PUSHs(sv_2mortal(sv));
3050 along = (strend - s) / sizeof(double);
3055 Copy(s, &adouble, 1, double);
3056 s += sizeof(double);
3064 Copy(s, &adouble, 1, double);
3065 s += sizeof(double);
3067 sv_setnv(sv, (double)adouble);
3068 PUSHs(sv_2mortal(sv));
3073 along = (strend - s) * 3 / 4;
3074 sv = NEWSV(42, along);
3077 while (s < strend && *s > ' ' && *s < 'a') {
3082 len = (*s++ - ' ') & 077;
3084 if (s < strend && *s >= ' ')
3085 a = (*s++ - ' ') & 077;
3088 if (s < strend && *s >= ' ')
3089 b = (*s++ - ' ') & 077;
3092 if (s < strend && *s >= ' ')
3093 c = (*s++ - ' ') & 077;
3096 if (s < strend && *s >= ' ')
3097 d = (*s++ - ' ') & 077;
3100 hunk[0] = a << 2 | b >> 4;
3101 hunk[1] = b << 4 | c >> 2;
3102 hunk[2] = c << 6 | d;
3103 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3108 else if (s[1] == '\n') /* possible checksum byte */
3111 XPUSHs(sv_2mortal(sv));
3116 if (strchr("fFdD", datumtype) ||
3117 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3121 while (checksum >= 16) {
3125 while (checksum >= 4) {
3131 along = (1 << checksum) - 1;
3132 while (cdouble < 0.0)
3134 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3135 sv_setnv(sv, cdouble);
3138 if (checksum < 32) {
3139 along = (1 << checksum) - 1;
3140 culong &= (U32)along;
3142 sv_setnv(sv, (double)culong);
3144 XPUSHs(sv_2mortal(sv));
3148 if (sp == oldsp && GIMME != G_ARRAY)
3154 doencodes(sv, s, len)
3162 sv_catpvn(sv, hunk, 1);
3165 hunk[0] = ' ' + (077 & (*s >> 2));
3166 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3167 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3168 hunk[3] = ' ' + (077 & (s[2] & 077));
3169 sv_catpvn(sv, hunk, 4);
3173 for (s = SvPVX(sv); *s; s++) {
3177 sv_catpvn(sv, "\n", 1);
3185 SV *result = newSVpv("", l);
3186 char *result_c = SvPV(result, na); /* convenience */
3187 char *out = result_c;
3197 SvREFCNT_dec(result);
3220 SvREFCNT_dec(result);
3226 SvCUR_set(result, out - result_c);
3232 SV *pnum; /* must be '\0' terminated */
3236 char *s = SvPV(pnum, len);
3245 i = m * 10 + (*t - '0');
3247 r = (i >> 7); /* r < 10 */
3254 SvCUR_set(pnum, (STRLEN) (t - s));
3261 dSP; dMARK; dORIGMARK; dTARGET;
3262 register SV *cat = TARG;
3265 register char *pat = SvPVx(*++MARK, fromlen);
3266 register char *patend = pat + fromlen;
3271 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3272 static char *space10 = " ";
3274 /* These must not be in registers: */
3283 unsigned Quad_t auquad;
3291 sv_setpvn(cat, "", 0);
3292 while (pat < patend) {
3293 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3296 len = strchr("@Xxu", datumtype) ? 0 : items;
3299 else if (isDIGIT(*pat)) {
3301 while (isDIGIT(*pat))
3302 len = (len * 10) + (*pat++ - '0');
3310 DIE("%% may only be used in unpack");
3321 if (SvCUR(cat) < len)
3322 DIE("X outside of string");
3329 sv_catpvn(cat, null10, 10);
3332 sv_catpvn(cat, null10, len);
3337 aptr = SvPV(fromstr, fromlen);
3341 sv_catpvn(cat, aptr, len);
3343 sv_catpvn(cat, aptr, fromlen);
3345 if (datumtype == 'A') {
3347 sv_catpvn(cat, space10, 10);
3350 sv_catpvn(cat, space10, len);
3354 sv_catpvn(cat, null10, 10);
3357 sv_catpvn(cat, null10, len);
3364 char *savepat = pat;
3369 aptr = SvPV(fromstr, fromlen);
3374 SvCUR(cat) += (len+7)/8;
3375 SvGROW(cat, SvCUR(cat) + 1);
3376 aptr = SvPVX(cat) + aint;
3381 if (datumtype == 'B') {
3382 for (len = 0; len++ < aint;) {
3383 items |= *pat++ & 1;
3387 *aptr++ = items & 0xff;
3393 for (len = 0; len++ < aint;) {
3399 *aptr++ = items & 0xff;
3405 if (datumtype == 'B')
3406 items <<= 7 - (aint & 7);
3408 items >>= 7 - (aint & 7);
3409 *aptr++ = items & 0xff;
3411 pat = SvPVX(cat) + SvCUR(cat);
3422 char *savepat = pat;
3427 aptr = SvPV(fromstr, fromlen);
3432 SvCUR(cat) += (len+1)/2;
3433 SvGROW(cat, SvCUR(cat) + 1);
3434 aptr = SvPVX(cat) + aint;
3439 if (datumtype == 'H') {
3440 for (len = 0; len++ < aint;) {
3442 items |= ((*pat++ & 15) + 9) & 15;
3444 items |= *pat++ & 15;
3448 *aptr++ = items & 0xff;
3454 for (len = 0; len++ < aint;) {
3456 items |= (((*pat++ & 15) + 9) & 15) << 4;
3458 items |= (*pat++ & 15) << 4;
3462 *aptr++ = items & 0xff;
3468 *aptr++ = items & 0xff;
3469 pat = SvPVX(cat) + SvCUR(cat);
3481 aint = SvIV(fromstr);
3483 sv_catpvn(cat, &achar, sizeof(char));
3486 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3491 afloat = (float)SvNV(fromstr);
3492 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3499 adouble = (double)SvNV(fromstr);
3500 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3506 ashort = (I16)SvIV(fromstr);
3508 ashort = htons(ashort);
3510 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3516 ashort = (I16)SvIV(fromstr);
3518 ashort = htovs(ashort);
3520 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3527 ashort = (I16)SvIV(fromstr);
3528 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3534 auint = U_I(SvNV(fromstr));
3535 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3541 adouble = floor(SvNV(fromstr));
3544 croak("Cannot compress negative numbers");
3546 if (adouble <= UV_MAX) {
3547 char buf[1 + sizeof(UV)];
3548 char *in = buf + sizeof(buf);
3549 UV auv = U_V(adouble);;
3552 *--in = (auv & 0x7f) | 0x80;
3555 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3556 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3558 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3559 char *from, *result, *in;
3564 /* Copy string and check for compliance */
3565 from = SvPV(fromstr, len);
3566 if ((norm = is_an_int(from, len)) == NULL)
3567 croak("can compress only unsigned integer");
3569 New('w', result, len, char);
3573 *--in = div128(norm, &done) | 0x80;
3574 result[len - 1] &= 0x7F; /* clear continue bit */
3575 sv_catpvn(cat, in, (result + len) - in);
3577 SvREFCNT_dec(norm); /* free norm */
3579 else if (SvNOKp(fromstr)) {
3580 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3581 char *in = buf + sizeof(buf);
3584 double next = floor(adouble / 128);
3585 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3586 if (--in < buf) /* this cannot happen ;-) */
3587 croak ("Cannot compress integer");
3589 } while (adouble > 0);
3590 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3591 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3594 croak("Cannot compress non integer");
3600 aint = SvIV(fromstr);
3601 sv_catpvn(cat, (char*)&aint, sizeof(int));
3607 aulong = U_L(SvNV(fromstr));
3609 aulong = htonl(aulong);
3611 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3617 aulong = U_L(SvNV(fromstr));
3619 aulong = htovl(aulong);
3621 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3627 aulong = U_L(SvNV(fromstr));
3628 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3634 along = SvIV(fromstr);
3635 sv_catpvn(cat, (char*)&along, sizeof(I32));
3642 auquad = (unsigned Quad_t)SvIV(fromstr);
3643 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3649 aquad = (Quad_t)SvIV(fromstr);
3650 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3653 #endif /* HAS_QUAD */
3655 len = 1; /* assume SV is correct length */
3660 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3661 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3666 aptr = SvPV(fromstr, fromlen);
3667 SvGROW(cat, fromlen * 4 / 3);
3672 while (fromlen > 0) {
3679 doencodes(cat, aptr, todo);
3697 register I32 limit = POPi; /* note, negative is forever */
3700 register char *s = SvPV(sv, len);
3701 char *strend = s + len;
3702 register PMOP *pm = (PMOP*)POPs;
3706 I32 maxiters = (strend - s) + 10;
3709 I32 origlimit = limit;
3712 AV *oldstack = curstack;
3713 register REGEXP *rx = pm->op_pmregexp;
3715 I32 oldsave = savestack_ix;
3718 DIE("panic: do_split");
3720 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3721 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3723 if (pm->op_pmreplroot)
3724 ary = GvAVn((GV*)pm->op_pmreplroot);
3725 else if (gimme != G_ARRAY)
3729 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3733 for (i = AvFILL(ary); i >= 0; i--)
3734 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3738 /* temporarily switch stacks */
3739 SWITCHSTACK(curstack, ary);
3741 base = SP - stack_base;
3743 if (pm->op_pmflags & PMf_SKIPWHITE) {
3744 if (pm->op_pmflags & PMf_LOCALE) {
3745 while (isSPACE_LC(*s))
3753 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3755 multiline = pm->op_pmflags & PMf_MULTILINE;
3759 limit = maxiters + 2;
3760 if (pm->op_pmflags & PMf_WHITE) {
3763 while (m < strend &&
3764 !((pm->op_pmflags & PMf_LOCALE)
3765 ? isSPACE_LC(*m) : isSPACE(*m)))
3770 dstr = NEWSV(30, m-s);
3771 sv_setpvn(dstr, s, m-s);
3777 while (s < strend &&
3778 ((pm->op_pmflags & PMf_LOCALE)
3779 ? isSPACE_LC(*s) : isSPACE(*s)))
3783 else if (strEQ("^", rx->precomp)) {
3786 for (m = s; m < strend && *m != '\n'; m++) ;
3790 dstr = NEWSV(30, m-s);
3791 sv_setpvn(dstr, s, m-s);
3798 else if (pm->op_pmshort) {
3799 i = SvCUR(pm->op_pmshort);
3801 i = *SvPVX(pm->op_pmshort);
3804 for (m = s; m < strend && *m != i; m++) ;
3807 dstr = NEWSV(30, m-s);
3808 sv_setpvn(dstr, s, m-s);
3817 while (s < strend && --limit &&
3818 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3822 dstr = NEWSV(31, m-s);
3823 sv_setpvn(dstr, s, m-s);
3832 maxiters += (strend - s) * rx->nparens;
3833 while (s < strend && --limit &&
3834 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3836 TAINT_IF(rx->exec_tainted);
3838 && rx->subbase != orig) {
3843 strend = s + (strend - m);
3846 dstr = NEWSV(32, m-s);
3847 sv_setpvn(dstr, s, m-s);
3852 for (i = 1; i <= rx->nparens; i++) {
3856 dstr = NEWSV(33, m-s);
3857 sv_setpvn(dstr, s, m-s);
3860 dstr = NEWSV(33, 0);
3869 LEAVE_SCOPE(oldsave);
3870 iters = (SP - stack_base) - base;
3871 if (iters > maxiters)
3874 /* keep field after final delim? */
3875 if (s < strend || (iters && origlimit)) {
3876 dstr = NEWSV(34, strend-s);
3877 sv_setpvn(dstr, s, strend-s);
3883 else if (!origlimit) {
3884 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3888 SWITCHSTACK(ary, oldstack);
3889 if (gimme == G_ARRAY) {
3891 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3897 if (gimme == G_ARRAY)
3900 if (iters || !pm->op_pmreplroot) {