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");
145 if (op->op_private & HINT_STRICT_REFS)
146 DIE(no_symref, sym, "a symbol");
147 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
150 if (op->op_private & OPpLVAL_INTRO)
151 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
163 switch (SvTYPE(sv)) {
167 DIE("Not a SCALAR reference");
174 if (SvTYPE(gv) != SVt_PVGV) {
175 if (SvGMAGICAL(sv)) {
181 if (op->op_flags & OPf_REF ||
182 op->op_private & HINT_STRICT_REFS)
183 DIE(no_usym, "a SCALAR");
187 if (op->op_private & HINT_STRICT_REFS)
188 DIE(no_symref, sym, "a SCALAR");
189 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
193 if (op->op_flags & OPf_MOD) {
194 if (op->op_private & OPpLVAL_INTRO)
195 sv = save_scalar((GV*)TOPs);
196 else if (op->op_private & OPpDEREF)
207 SV *sv = AvARYLEN(av);
209 AvARYLEN(av) = sv = NEWSV(0,0);
210 sv_upgrade(sv, SVt_IV);
211 sv_magic(sv, (SV*)av, '#', Nullch, 0);
219 dSP; dTARGET; dPOPss;
221 if (op->op_flags & OPf_MOD) {
222 if (SvTYPE(TARG) < SVt_PVLV) {
223 sv_upgrade(TARG, SVt_PVLV);
224 sv_magic(TARG, Nullsv, '.', Nullch, 0);
229 PUSHs(TARG); /* no SvSETMAGIC */
235 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
236 mg = mg_find(sv, 'g');
237 if (mg && mg->mg_len >= 0) {
238 PUSHi(mg->mg_len + curcop->cop_arybase);
252 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
253 /* (But not in defined().) */
254 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
257 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
274 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
276 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
284 CV* cv = (CV*)curpad[op->op_targ];
286 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
302 if (GIMME != G_ARRAY) {
306 EXTEND_MORTAL(SP - MARK);
308 *MARK = refto(*MARK);
318 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
324 else if (SvPADTMP(sv))
328 (void)SvREFCNT_inc(sv);
331 sv_upgrade(rv, SVt_RV);
345 if (sv && SvGMAGICAL(sv))
348 if (!sv || !SvROK(sv))
352 pv = sv_reftype(sv,TRUE);
353 PUSHp(pv, strlen(pv));
363 stash = curcop->cop_stash;
365 stash = gv_stashsv(POPs, TRUE);
367 (void)sv_bless(TOPs, stash);
371 /* Pattern matching */
376 register unsigned char *s;
379 register I32 *sfirst;
383 if (sv == lastscream) {
389 SvSCREAM_off(lastscream);
390 SvREFCNT_dec(lastscream);
392 lastscream = SvREFCNT_inc(sv);
395 s = (unsigned char*)(SvPV(sv, len));
399 if (pos > maxscream) {
401 maxscream = pos + 80;
402 New(301, screamfirst, 256, I32);
403 New(302, screamnext, maxscream, I32);
406 maxscream = pos + pos / 4;
407 Renew(screamnext, maxscream, I32);
411 sfirst = screamfirst;
414 if (!sfirst || !snext)
415 DIE("do_study: out of memory");
417 for (ch = 256; ch; --ch)
424 snext[pos] = sfirst[ch] - pos;
431 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
440 if (op->op_flags & OPf_STACKED)
446 TARG = sv_newmortal();
447 PUSHi(do_trans(sv, op));
451 /* Lvalue operators. */
473 SETi(do_chomp(TOPs));
480 register I32 count = 0;
483 count += do_chomp(POPs);
494 if (!sv || !SvANY(sv))
496 switch (SvTYPE(sv)) {
498 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
502 if (HvARRAY(sv) || SvRMAGICAL(sv))
506 if (CvROOT(sv) || CvXSUB(sv))
523 if (!op->op_private) {
532 if (SvTHINKFIRST(sv)) {
539 switch (SvTYPE(sv)) {
549 if (!CvANON((CV*)sv) && cv_const_sv((CV*)sv))
550 warn("Constant subroutine %s undefined",
551 GvENAME(CvGV((CV*)sv)));
558 sv_setsv(sv, &sv_undef);
561 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
564 SvPV_set(sv, Nullch);
577 if (SvREADONLY(TOPs))
579 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
580 SvIVX(TOPs) != IV_MIN)
583 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
594 if (SvREADONLY(TOPs))
596 sv_setsv(TARG, TOPs);
597 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
598 SvIVX(TOPs) != IV_MAX)
601 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
617 sv_setsv(TARG, TOPs);
618 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
619 SvIVX(TOPs) != IV_MIN)
622 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
631 /* Ordinary operators. */
635 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
638 SETn( pow( left, right) );
645 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
648 SETn( left * right );
655 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
660 DIE("Illegal division by zero");
662 /* insure that 20./5. == 4. */
665 if ((double)I_V(left) == left &&
666 (double)I_V(right) == right &&
667 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
670 value = left / right;
674 value = left / right;
683 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
689 DIE("Illegal modulus zero");
691 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
692 register IV left = SvIVX(TOPs);
694 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
696 SETi( left % right );
699 register double left = TOPn;
701 SETu( (right - (U_V(-left) - 1) % right) - 1 );
703 SETu( U_V(left) % right );
711 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
713 register I32 count = POPi;
714 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
716 I32 items = SP - MARK;
728 repeatcpy((char*)(MARK + items), (char*)MARK,
729 items * sizeof(SV*), count - 1);
735 else { /* Note: mark already snarfed by pp_list */
740 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
741 if (SvREADONLY(tmpstr) && curcop != &compiling)
742 DIE("Can't x= to readonly value");
746 SvSetSV(TARG, tmpstr);
747 SvPV_force(TARG, len);
752 SvGROW(TARG, (count * len) + 1);
753 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
754 SvCUR(TARG) *= count;
758 (void)SvPOK_only(TARG);
767 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
770 SETn( left - right );
777 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
780 if (op->op_private & HINT_INTEGER) {
794 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
797 if (op->op_private & HINT_INTEGER) {
811 dSP; tryAMAGICbinSET(lt,0);
814 SETs((TOPn < value) ? &sv_yes : &sv_no);
821 dSP; tryAMAGICbinSET(gt,0);
824 SETs((TOPn > value) ? &sv_yes : &sv_no);
831 dSP; tryAMAGICbinSET(le,0);
834 SETs((TOPn <= value) ? &sv_yes : &sv_no);
841 dSP; tryAMAGICbinSET(ge,0);
844 SETs((TOPn >= value) ? &sv_yes : &sv_no);
851 dSP; tryAMAGICbinSET(ne,0);
854 SETs((TOPn != value) ? &sv_yes : &sv_no);
861 dSP; dTARGET; tryAMAGICbin(ncmp,0);
868 else if (left < right)
870 else if (left > right)
883 dSP; tryAMAGICbinSET(slt,0);
886 int cmp = ((op->op_private & OPpLOCALE)
887 ? sv_cmp_locale(left, right)
888 : sv_cmp(left, right));
889 SETs( cmp < 0 ? &sv_yes : &sv_no );
896 dSP; tryAMAGICbinSET(sgt,0);
899 int cmp = ((op->op_private & OPpLOCALE)
900 ? sv_cmp_locale(left, right)
901 : sv_cmp(left, right));
902 SETs( cmp > 0 ? &sv_yes : &sv_no );
909 dSP; tryAMAGICbinSET(sle,0);
912 int cmp = ((op->op_private & OPpLOCALE)
913 ? sv_cmp_locale(left, right)
914 : sv_cmp(left, right));
915 SETs( cmp <= 0 ? &sv_yes : &sv_no );
922 dSP; tryAMAGICbinSET(sge,0);
925 int cmp = ((op->op_private & OPpLOCALE)
926 ? sv_cmp_locale(left, right)
927 : sv_cmp(left, right));
928 SETs( cmp >= 0 ? &sv_yes : &sv_no );
935 dSP; tryAMAGICbinSET(seq,0);
938 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
945 dSP; tryAMAGICbinSET(sne,0);
948 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
955 dSP; dTARGET; tryAMAGICbin(scmp,0);
958 int cmp = ((op->op_private & OPpLOCALE)
959 ? sv_cmp_locale(left, right)
960 : sv_cmp(left, right));
968 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
971 if (SvNIOKp(left) || SvNIOKp(right)) {
972 if (op->op_private & HINT_INTEGER) {
973 IBW value = SvIV(left) & SvIV(right);
977 UBW value = SvUV(left) & SvUV(right);
982 do_vop(op->op_type, TARG, left, right);
991 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
994 if (SvNIOKp(left) || SvNIOKp(right)) {
995 if (op->op_private & HINT_INTEGER) {
996 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1000 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1005 do_vop(op->op_type, TARG, left, right);
1014 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1017 if (SvNIOKp(left) || SvNIOKp(right)) {
1018 if (op->op_private & HINT_INTEGER) {
1019 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1023 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1028 do_vop(op->op_type, TARG, left, right);
1037 dSP; dTARGET; tryAMAGICun(neg);
1042 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1044 else if (SvNIOKp(sv))
1046 else if (SvPOKp(sv)) {
1048 char *s = SvPV(sv, len);
1049 if (isIDFIRST(*s)) {
1050 sv_setpvn(TARG, "-", 1);
1053 else if (*s == '+' || *s == '-') {
1055 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1058 sv_setnv(TARG, -SvNV(sv));
1070 dSP; tryAMAGICunSET(not);
1071 #endif /* OVERLOAD */
1072 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1078 dSP; dTARGET; tryAMAGICun(compl);
1082 if (op->op_private & HINT_INTEGER) {
1083 IBW value = ~SvIV(sv);
1087 UBW value = ~SvUV(sv);
1092 register char *tmps;
1093 register long *tmpl;
1098 tmps = SvPV_force(TARG, len);
1101 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1104 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1108 for ( ; anum > 0; anum--, tmps++)
1117 /* integer versions of some of the above */
1121 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1124 SETi( left * right );
1131 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1135 DIE("Illegal division by zero");
1136 value = POPi / value;
1144 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1148 DIE("Illegal modulus zero");
1149 SETi( left % right );
1156 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1159 SETi( left + right );
1166 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1169 SETi( left - right );
1176 dSP; tryAMAGICbinSET(lt,0);
1179 SETs((left < right) ? &sv_yes : &sv_no);
1186 dSP; tryAMAGICbinSET(gt,0);
1189 SETs((left > right) ? &sv_yes : &sv_no);
1196 dSP; tryAMAGICbinSET(le,0);
1199 SETs((left <= right) ? &sv_yes : &sv_no);
1206 dSP; tryAMAGICbinSET(ge,0);
1209 SETs((left >= right) ? &sv_yes : &sv_no);
1216 dSP; tryAMAGICbinSET(eq,0);
1219 SETs((left == right) ? &sv_yes : &sv_no);
1226 dSP; tryAMAGICbinSET(ne,0);
1229 SETs((left != right) ? &sv_yes : &sv_no);
1236 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1243 else if (left < right)
1254 dSP; dTARGET; tryAMAGICun(neg);
1259 /* High falutin' math. */
1263 dSP; dTARGET; tryAMAGICbin(atan2,0);
1266 SETn(atan2(left, right));
1273 dSP; dTARGET; tryAMAGICun(sin);
1285 dSP; dTARGET; tryAMAGICun(cos);
1305 if (!srand_called) {
1306 (void)srand((unsigned)seed());
1307 srand_called = TRUE;
1310 value = rand() * value / 2147483648.0;
1313 value = rand() * value / 65536.0;
1316 value = rand() * value / 32768.0;
1318 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1334 (void)srand((unsigned)anum);
1335 srand_called = TRUE;
1345 # include <starlet.h>
1346 unsigned int when[2];
1347 _ckvmssts(sys$gettim(when));
1348 u = when[0] ^ when[1];
1350 # ifdef HAS_GETTIMEOFDAY
1351 struct timeval when;
1352 gettimeofday(&when,(struct timezone *) 0);
1353 u = when.tv_sec ^ when.tv_usec;
1360 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1361 /* What is a good hashing algorithm here? */
1362 u ^= ( ( 269 * (U32)getpid())
1363 ^ (26107 * (U32)&when)
1364 ^ (73819 * (U32)stack_sp));
1371 dSP; dTARGET; tryAMAGICun(exp);
1383 dSP; dTARGET; tryAMAGICun(log);
1388 SET_NUMERIC_STANDARD();
1389 DIE("Can't take log of %g", value);
1399 dSP; dTARGET; tryAMAGICun(sqrt);
1404 SET_NUMERIC_STANDARD();
1405 DIE("Can't take sqrt of %g", value);
1407 value = sqrt(value);
1417 double value = TOPn;
1420 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1426 (void)modf(value, &value);
1428 (void)modf(-value, &value);
1443 dSP; dTARGET; tryAMAGICun(abs);
1445 double value = TOPn;
1448 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1449 (iv = SvIVX(TOPs)) != IV_MIN) {
1470 XPUSHu(scan_hex(tmps, 99, &argtype));
1482 while (*tmps && isSPACE(*tmps))
1487 value = scan_hex(++tmps, 99, &argtype);
1489 value = scan_oct(tmps, 99, &argtype);
1499 SETi( sv_len(TOPs) );
1511 I32 lvalue = op->op_flags & OPf_MOD;
1513 I32 arybase = curcop->cop_arybase;
1517 pos = POPi - arybase;
1519 tmps = SvPV(sv, curlen);
1521 pos += curlen + arybase;
1522 if (pos < 0 || pos > curlen) {
1523 if (dowarn || lvalue)
1524 warn("substr outside of string");
1531 len += curlen - pos;
1536 rem = curlen - pos; /* rem=how many bytes left*/
1539 sv_setpvn(TARG, tmps, rem);
1540 if (lvalue) { /* it's an lvalue! */
1541 if (!SvGMAGICAL(sv)) {
1545 warn("Attempt to use reference as lvalue in substr");
1547 if (SvOK(sv)) /* is it defined ? */
1548 (void)SvPOK_only(sv);
1550 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1553 if (SvTYPE(TARG) < SVt_PVLV) {
1554 sv_upgrade(TARG, SVt_PVLV);
1555 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1560 LvTARGOFF(TARG) = pos;
1561 LvTARGLEN(TARG) = rem;
1564 PUSHs(TARG); /* avoid SvSETMAGIC here */
1571 register I32 size = POPi;
1572 register I32 offset = POPi;
1573 register SV *src = POPs;
1574 I32 lvalue = op->op_flags & OPf_MOD;
1576 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1577 unsigned long retnum;
1580 offset *= size; /* turn into bit offset */
1581 len = (offset + size + 7) / 8;
1582 if (offset < 0 || size < 1)
1585 if (lvalue) { /* it's an lvalue! */
1586 if (SvTYPE(TARG) < SVt_PVLV) {
1587 sv_upgrade(TARG, SVt_PVLV);
1588 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1593 LvTARGOFF(TARG) = offset;
1594 LvTARGLEN(TARG) = size;
1602 if (offset >= srclen)
1605 retnum = (unsigned long) s[offset] << 8;
1607 else if (size == 32) {
1608 if (offset >= srclen)
1610 else if (offset + 1 >= srclen)
1611 retnum = (unsigned long) s[offset] << 24;
1612 else if (offset + 2 >= srclen)
1613 retnum = ((unsigned long) s[offset] << 24) +
1614 ((unsigned long) s[offset + 1] << 16);
1616 retnum = ((unsigned long) s[offset] << 24) +
1617 ((unsigned long) s[offset + 1] << 16) +
1618 (s[offset + 2] << 8);
1623 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1628 else if (size == 16)
1629 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1630 else if (size == 32)
1631 retnum = ((unsigned long) s[offset] << 24) +
1632 ((unsigned long) s[offset + 1] << 16) +
1633 (s[offset + 2] << 8) + s[offset+3];
1637 sv_setiv(TARG, (IV)retnum);
1652 I32 arybase = curcop->cop_arybase;
1657 offset = POPi - arybase;
1660 tmps = SvPV(big, biglen);
1663 else if (offset > biglen)
1665 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1666 (unsigned char*)tmps + biglen, little)))
1667 retval = -1 + arybase;
1669 retval = tmps2 - tmps + arybase;
1686 I32 arybase = curcop->cop_arybase;
1692 tmps2 = SvPV(little, llen);
1693 tmps = SvPV(big, blen);
1697 offset = SvIV(offstr) - arybase + llen;
1700 else if (offset > blen)
1702 if (!(tmps2 = rninstr(tmps, tmps + offset,
1703 tmps2, tmps2 + llen)))
1704 retval = -1 + arybase;
1706 retval = tmps2 - tmps + arybase;
1713 dSP; dMARK; dORIGMARK; dTARGET;
1714 #ifdef USE_LOCALE_NUMERIC
1715 if (op->op_private & OPpLOCALE)
1716 SET_NUMERIC_LOCAL();
1718 SET_NUMERIC_STANDARD();
1720 do_sprintf(TARG, SP-MARK, MARK+1);
1721 TAINT_IF(SvTAINTED(TARG));
1735 value = (I32) (*tmps & 255);
1740 value = (I32) (anum & 255);
1751 (void)SvUPGRADE(TARG,SVt_PV);
1757 (void)SvPOK_only(TARG);
1764 dSP; dTARGET; dPOPTOPssrl;
1766 char *tmps = SvPV(left, na);
1768 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1770 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1774 "The crypt() function is unimplemented due to excessive paranoia.");
1786 if (!SvPADTMP(sv)) {
1792 s = SvPV_force(sv, na);
1794 if (op->op_private & OPpLOCALE) {
1797 *s = toUPPER_LC(*s);
1812 if (!SvPADTMP(sv)) {
1818 s = SvPV_force(sv, na);
1820 if (op->op_private & OPpLOCALE) {
1823 *s = toLOWER_LC(*s);
1840 if (!SvPADTMP(sv)) {
1847 s = SvPV_force(sv, len);
1849 register char *send = s + len;
1851 if (op->op_private & OPpLOCALE) {
1854 for (; s < send; s++)
1855 *s = toUPPER_LC(*s);
1858 for (; s < send; s++)
1872 if (!SvPADTMP(sv)) {
1879 s = SvPV_force(sv, len);
1881 register char *send = s + len;
1883 if (op->op_private & OPpLOCALE) {
1886 for (; s < send; s++)
1887 *s = toLOWER_LC(*s);
1890 for (; s < send; s++)
1902 register char *s = SvPV(sv,len);
1906 (void)SvUPGRADE(TARG, SVt_PV);
1907 SvGROW(TARG, (len * 2) + 1);
1915 SvCUR_set(TARG, d - SvPVX(TARG));
1916 (void)SvPOK_only(TARG);
1919 sv_setpvn(TARG, s, len);
1928 dSP; dMARK; dORIGMARK;
1930 register AV* av = (AV*)POPs;
1931 register I32 lval = op->op_flags & OPf_MOD;
1932 I32 arybase = curcop->cop_arybase;
1935 if (SvTYPE(av) == SVt_PVAV) {
1936 if (lval && op->op_private & OPpLVAL_INTRO) {
1938 for (svp = mark + 1; svp <= sp; svp++) {
1943 if (max > AvMAX(av))
1946 while (++MARK <= SP) {
1947 elem = SvIVx(*MARK);
1951 svp = av_fetch(av, elem, lval);
1953 if (!svp || *svp == &sv_undef)
1954 DIE(no_aelem, elem);
1955 if (op->op_private & OPpLVAL_INTRO)
1958 *MARK = svp ? *svp : &sv_undef;
1961 if (GIMME != G_ARRAY) {
1969 /* Associative arrays. */
1974 HV *hash = (HV*)POPs;
1978 entry = hv_iternext(hash); /* might clobber stack_sp */
1983 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1984 if (GIMME == G_ARRAY) {
1986 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1991 else if (GIMME == G_SCALAR)
2013 if (op->op_private & OPpSLICE) {
2016 if (SvTYPE(hv) != SVt_PVHV)
2017 DIE("Not a HASH reference");
2018 while (++MARK <= SP) {
2019 sv = hv_delete_ent(hv, *MARK,
2020 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2021 *MARK = sv ? sv : &sv_undef;
2023 if (GIMME != G_ARRAY) {
2032 if (SvTYPE(hv) != SVt_PVHV)
2033 DIE("Not a HASH reference");
2034 sv = hv_delete_ent(hv, keysv,
2035 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2049 if (SvTYPE(hv) != SVt_PVHV) {
2050 DIE("Not a HASH reference");
2052 if (hv_exists_ent(hv, tmpsv, 0))
2059 dSP; dMARK; dORIGMARK;
2061 register HV *hv = (HV*)POPs;
2062 register I32 lval = op->op_flags & OPf_MOD;
2064 if (SvTYPE(hv) == SVt_PVHV) {
2065 while (++MARK <= SP) {
2068 he = hv_fetch_ent(hv, keysv, lval, 0);
2070 if (!he || HeVAL(he) == &sv_undef)
2071 DIE(no_helem, SvPV(keysv, na));
2072 if (op->op_private & OPpLVAL_INTRO)
2073 save_svref(&HeVAL(he));
2075 *MARK = he ? HeVAL(he) : &sv_undef;
2078 if (GIMME != G_ARRAY) {
2086 /* List operators. */
2091 if (GIMME != G_ARRAY) {
2093 *MARK = *SP; /* unwanted list, return last item */
2104 SV **lastrelem = stack_sp;
2105 SV **lastlelem = stack_base + POPMARK;
2106 SV **firstlelem = stack_base + POPMARK + 1;
2107 register SV **firstrelem = lastlelem + 1;
2108 I32 arybase = curcop->cop_arybase;
2109 I32 lval = op->op_flags & OPf_MOD;
2110 I32 is_something_there = lval;
2112 register I32 max = lastrelem - lastlelem;
2113 register SV **lelem;
2116 if (GIMME != G_ARRAY) {
2117 ix = SvIVx(*lastlelem);
2122 if (ix < 0 || ix >= max)
2123 *firstlelem = &sv_undef;
2125 *firstlelem = firstrelem[ix];
2131 SP = firstlelem - 1;
2135 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2141 else if (!(*lelem = firstrelem[ix]))
2146 if (ix >= max || !(*lelem = firstrelem[ix]))
2149 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2150 is_something_there = TRUE;
2152 if (is_something_there)
2155 SP = firstlelem - 1;
2161 dSP; dMARK; dORIGMARK;
2162 I32 items = SP - MARK;
2163 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2164 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2171 dSP; dMARK; dORIGMARK;
2172 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2176 SV *val = NEWSV(46, 0);
2178 sv_setsv(val, *++MARK);
2180 warn("Odd number of elements in hash list");
2181 (void)hv_store_ent(hv,key,val,0);
2190 dSP; dMARK; dORIGMARK;
2191 register AV *ary = (AV*)*++MARK;
2195 register I32 offset;
2196 register I32 length;
2205 offset = SvIVx(*MARK);
2207 offset += AvFILL(ary) + 1;
2209 offset -= curcop->cop_arybase;
2211 length = SvIVx(*MARK++);
2216 length = AvMAX(ary) + 1; /* close enough to infinity */
2220 length = AvMAX(ary) + 1;
2228 if (offset > AvFILL(ary) + 1)
2229 offset = AvFILL(ary) + 1;
2230 after = AvFILL(ary) + 1 - (offset + length);
2231 if (after < 0) { /* not that much array */
2232 length += after; /* offset+length now in array */
2238 /* At this point, MARK .. SP-1 is our new LIST */
2241 diff = newlen - length;
2243 if (diff < 0) { /* shrinking the area */
2245 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2246 Copy(MARK, tmparyval, newlen, SV*);
2249 MARK = ORIGMARK + 1;
2250 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2251 MEXTEND(MARK, length);
2252 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2254 EXTEND_MORTAL(length);
2255 for (i = length, dst = MARK; i; i--) {
2256 if (!SvIMMORTAL(*dst))
2257 sv_2mortal(*dst); /* free them eventualy */
2264 *MARK = AvARRAY(ary)[offset+length-1];
2266 if (!SvIMMORTAL(*MARK))
2268 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2269 SvREFCNT_dec(*dst++); /* free them now */
2272 AvFILL(ary) += diff;
2274 /* pull up or down? */
2276 if (offset < after) { /* easier to pull up */
2277 if (offset) { /* esp. if nothing to pull */
2278 src = &AvARRAY(ary)[offset-1];
2279 dst = src - diff; /* diff is negative */
2280 for (i = offset; i > 0; i--) /* can't trust Copy */
2284 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2288 if (after) { /* anything to pull down? */
2289 src = AvARRAY(ary) + offset + length;
2290 dst = src + diff; /* diff is negative */
2291 Move(src, dst, after, SV*);
2293 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2294 /* avoid later double free */
2298 dst[--i] = &sv_undef;
2301 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2303 *dst = NEWSV(46, 0);
2304 sv_setsv(*dst++, *src++);
2306 Safefree(tmparyval);
2309 else { /* no, expanding (or same) */
2311 New(452, tmparyval, length, SV*); /* so remember deletion */
2312 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2315 if (diff > 0) { /* expanding */
2317 /* push up or down? */
2319 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2323 Move(src, dst, offset, SV*);
2325 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2327 AvFILL(ary) += diff;
2330 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2331 av_extend(ary, AvFILL(ary) + diff);
2332 AvFILL(ary) += diff;
2335 dst = AvARRAY(ary) + AvFILL(ary);
2337 for (i = after; i; i--) {
2344 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2345 *dst = NEWSV(46, 0);
2346 sv_setsv(*dst++, *src++);
2348 MARK = ORIGMARK + 1;
2349 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2351 Copy(tmparyval, MARK, length, SV*);
2353 EXTEND_MORTAL(length);
2354 for (i = length, dst = MARK; i; i--) {
2355 if (!SvIMMORTAL(*dst))
2356 sv_2mortal(*dst); /* free them eventualy */
2360 Safefree(tmparyval);
2364 else if (length--) {
2365 *MARK = tmparyval[length];
2367 if (!SvIMMORTAL(*MARK))
2369 while (length-- > 0)
2370 SvREFCNT_dec(tmparyval[length]);
2372 Safefree(tmparyval);
2383 dSP; dMARK; dORIGMARK; dTARGET;
2384 register AV *ary = (AV*)*++MARK;
2385 register SV *sv = &sv_undef;
2387 for (++MARK; MARK <= SP; MARK++) {
2390 sv_setsv(sv, *MARK);
2394 PUSHi( AvFILL(ary) + 1 );
2402 SV *sv = av_pop(av);
2403 if (!SvIMMORTAL(sv) && AvREAL(av))
2404 (void)sv_2mortal(sv);
2413 SV *sv = av_shift(av);
2417 if (!SvIMMORTAL(sv) && AvREAL(av))
2418 (void)sv_2mortal(sv);
2425 dSP; dMARK; dORIGMARK; dTARGET;
2426 register AV *ary = (AV*)*++MARK;
2430 av_unshift(ary, SP - MARK);
2433 sv_setsv(sv, *++MARK);
2434 (void)av_store(ary, i++, sv);
2438 PUSHi( AvFILL(ary) + 1 );
2448 if (GIMME == G_ARRAY) {
2459 register char *down;
2465 do_join(TARG, &sv_no, MARK, SP);
2467 sv_setsv(TARG, *SP);
2468 up = SvPV_force(TARG, len);
2470 down = SvPVX(TARG) + len - 1;
2476 (void)SvPOK_only(TARG);
2490 char *s = SvPV(sv, len);
2494 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2495 SV *new = newSVpv("0000000000", 10);
2498 SvREFCNT_dec(sv); /* free old sv */
2503 while (!*t) /* trailing '\0'? */
2506 i = ((*t - '0') << 7) + m;
2507 *(t--) = '0' + (i % 10);
2513 /* Explosives and implosives. */
2523 register char *pat = SvPV(left, llen);
2524 register char *s = SvPV(right, rlen);
2525 char *strend = s + rlen;
2527 register char *patend = pat + llen;
2532 /* These must not be in registers: */
2543 unsigned Quad_t auquad;
2549 register U32 culong;
2551 static char* bitcount = 0;
2553 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2555 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2556 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2558 while (isDIGIT(*patend) || *patend == '*')
2564 while (pat < patend) {
2569 else if (*pat == '*') {
2570 len = strend - strbeg; /* long enough */
2573 else if (isDIGIT(*pat)) {
2575 while (isDIGIT(*pat))
2576 len = (len * 10) + (*pat++ - '0');
2579 len = (datumtype != '@');
2584 if (len == 1 && pat[-1] != '1')
2593 if (len > strend - strbeg)
2594 DIE("@ outside of string");
2598 if (len > s - strbeg)
2599 DIE("X outside of string");
2603 if (len > strend - s)
2604 DIE("x outside of string");
2609 if (len > strend - s)
2612 goto uchar_checksum;
2613 sv = NEWSV(35, len);
2614 sv_setpvn(sv, s, len);
2616 if (datumtype == 'A') {
2617 aptr = s; /* borrow register */
2618 s = SvPVX(sv) + len - 1;
2619 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2622 SvCUR_set(sv, s - SvPVX(sv));
2623 s = aptr; /* unborrow register */
2625 XPUSHs(sv_2mortal(sv));
2629 if (pat[-1] == '*' || len > (strend - s) * 8)
2630 len = (strend - s) * 8;
2633 Newz(601, bitcount, 256, char);
2634 for (bits = 1; bits < 256; bits++) {
2635 if (bits & 1) bitcount[bits]++;
2636 if (bits & 2) bitcount[bits]++;
2637 if (bits & 4) bitcount[bits]++;
2638 if (bits & 8) bitcount[bits]++;
2639 if (bits & 16) bitcount[bits]++;
2640 if (bits & 32) bitcount[bits]++;
2641 if (bits & 64) bitcount[bits]++;
2642 if (bits & 128) bitcount[bits]++;
2646 culong += bitcount[*(unsigned char*)s++];
2651 if (datumtype == 'b') {
2653 if (bits & 1) culong++;
2659 if (bits & 128) culong++;
2666 sv = NEWSV(35, len + 1);
2669 aptr = pat; /* borrow register */
2671 if (datumtype == 'b') {
2673 for (len = 0; len < aint; len++) {
2674 if (len & 7) /*SUPPRESS 595*/
2678 *pat++ = '0' + (bits & 1);
2683 for (len = 0; len < aint; len++) {
2688 *pat++ = '0' + ((bits & 128) != 0);
2692 pat = aptr; /* unborrow register */
2693 XPUSHs(sv_2mortal(sv));
2697 if (pat[-1] == '*' || len > (strend - s) * 2)
2698 len = (strend - s) * 2;
2699 sv = NEWSV(35, len + 1);
2702 aptr = pat; /* borrow register */
2704 if (datumtype == 'h') {
2706 for (len = 0; len < aint; len++) {
2711 *pat++ = hexdigit[bits & 15];
2716 for (len = 0; len < aint; len++) {
2721 *pat++ = hexdigit[(bits >> 4) & 15];
2725 pat = aptr; /* unborrow register */
2726 XPUSHs(sv_2mortal(sv));
2729 if (len > strend - s)
2734 if (aint >= 128) /* fake up signed chars */
2744 if (aint >= 128) /* fake up signed chars */
2747 sv_setiv(sv, (IV)aint);
2748 PUSHs(sv_2mortal(sv));
2753 if (len > strend - s)
2768 sv_setiv(sv, (IV)auint);
2769 PUSHs(sv_2mortal(sv));
2774 along = (strend - s) / sizeof(I16);
2779 Copy(s, &ashort, 1, I16);
2788 Copy(s, &ashort, 1, I16);
2791 sv_setiv(sv, (IV)ashort);
2792 PUSHs(sv_2mortal(sv));
2799 along = (strend - s) / sizeof(U16);
2804 Copy(s, &aushort, 1, U16);
2807 if (datumtype == 'n')
2808 aushort = ntohs(aushort);
2811 if (datumtype == 'v')
2812 aushort = vtohs(aushort);
2821 Copy(s, &aushort, 1, U16);
2825 if (datumtype == 'n')
2826 aushort = ntohs(aushort);
2829 if (datumtype == 'v')
2830 aushort = vtohs(aushort);
2832 sv_setiv(sv, (IV)aushort);
2833 PUSHs(sv_2mortal(sv));
2838 along = (strend - s) / sizeof(int);
2843 Copy(s, &aint, 1, int);
2846 cdouble += (double)aint;
2855 Copy(s, &aint, 1, int);
2858 sv_setiv(sv, (IV)aint);
2859 PUSHs(sv_2mortal(sv));
2864 along = (strend - s) / sizeof(unsigned int);
2869 Copy(s, &auint, 1, unsigned int);
2870 s += sizeof(unsigned int);
2872 cdouble += (double)auint;
2881 Copy(s, &auint, 1, unsigned int);
2882 s += sizeof(unsigned int);
2884 sv_setuv(sv, (UV)auint);
2885 PUSHs(sv_2mortal(sv));
2890 along = (strend - s) / sizeof(I32);
2895 Copy(s, &along, 1, I32);
2898 cdouble += (double)along;
2907 Copy(s, &along, 1, I32);
2910 sv_setiv(sv, (IV)along);
2911 PUSHs(sv_2mortal(sv));
2918 along = (strend - s) / sizeof(U32);
2923 Copy(s, &aulong, 1, U32);
2926 if (datumtype == 'N')
2927 aulong = ntohl(aulong);
2930 if (datumtype == 'V')
2931 aulong = vtohl(aulong);
2934 cdouble += (double)aulong;
2943 Copy(s, &aulong, 1, U32);
2946 if (datumtype == 'N')
2947 aulong = ntohl(aulong);
2950 if (datumtype == 'V')
2951 aulong = vtohl(aulong);
2954 sv_setuv(sv, (UV)aulong);
2955 PUSHs(sv_2mortal(sv));
2960 along = (strend - s) / sizeof(char*);
2966 if (sizeof(char*) > strend - s)
2969 Copy(s, &aptr, 1, char*);
2975 PUSHs(sv_2mortal(sv));
2985 while ((len > 0) && (s < strend)) {
2986 auv = (auv << 7) | (*s & 0x7f);
2987 if (!(*s++ & 0x80)) {
2991 PUSHs(sv_2mortal(sv));
2995 else if (++bytes >= sizeof(UV)) { /* promote to string */
2996 char decn[sizeof(UV) * 3 + 1];
2999 (void) sprintf(decn, "%0*ld",
3000 (int)sizeof(decn) - 1, auv);
3001 sv = newSVpv(decn, 0);
3002 while (s < strend) {
3003 sv = mul128(sv, *s & 0x7f);
3004 if (!(*s++ & 0x80)) {
3013 PUSHs(sv_2mortal(sv));
3018 if ((s >= strend) && bytes)
3019 croak("Unterminated compressed integer");
3024 if (sizeof(char*) > strend - s)
3027 Copy(s, &aptr, 1, char*);
3032 sv_setpvn(sv, aptr, len);
3033 PUSHs(sv_2mortal(sv));
3040 if (s + sizeof(Quad_t) > strend)
3043 Copy(s, &aquad, 1, Quad_t);
3044 s += sizeof(Quad_t);
3047 sv_setiv(sv, (IV)aquad);
3048 PUSHs(sv_2mortal(sv));
3055 if (s + sizeof(unsigned Quad_t) > strend)
3058 Copy(s, &auquad, 1, unsigned Quad_t);
3059 s += sizeof(unsigned Quad_t);
3062 sv_setuv(sv, (UV)auquad);
3063 PUSHs(sv_2mortal(sv));
3067 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3070 along = (strend - s) / sizeof(float);
3075 Copy(s, &afloat, 1, float);
3084 Copy(s, &afloat, 1, float);
3087 sv_setnv(sv, (double)afloat);
3088 PUSHs(sv_2mortal(sv));
3094 along = (strend - s) / sizeof(double);
3099 Copy(s, &adouble, 1, double);
3100 s += sizeof(double);
3108 Copy(s, &adouble, 1, double);
3109 s += sizeof(double);
3111 sv_setnv(sv, (double)adouble);
3112 PUSHs(sv_2mortal(sv));
3117 along = (strend - s) * 3 / 4;
3118 sv = NEWSV(42, along);
3121 while (s < strend && *s > ' ' && *s < 'a') {
3126 len = (*s++ - ' ') & 077;
3128 if (s < strend && *s >= ' ')
3129 a = (*s++ - ' ') & 077;
3132 if (s < strend && *s >= ' ')
3133 b = (*s++ - ' ') & 077;
3136 if (s < strend && *s >= ' ')
3137 c = (*s++ - ' ') & 077;
3140 if (s < strend && *s >= ' ')
3141 d = (*s++ - ' ') & 077;
3144 hunk[0] = a << 2 | b >> 4;
3145 hunk[1] = b << 4 | c >> 2;
3146 hunk[2] = c << 6 | d;
3147 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3152 else if (s[1] == '\n') /* possible checksum byte */
3155 XPUSHs(sv_2mortal(sv));
3160 if (strchr("fFdD", datumtype) ||
3161 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3165 while (checksum >= 16) {
3169 while (checksum >= 4) {
3175 along = (1 << checksum) - 1;
3176 while (cdouble < 0.0)
3178 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3179 sv_setnv(sv, cdouble);
3182 if (checksum < 32) {
3183 along = (1 << checksum) - 1;
3184 culong &= (U32)along;
3186 sv_setnv(sv, (double)culong);
3188 XPUSHs(sv_2mortal(sv));
3192 if (sp == oldsp && GIMME != G_ARRAY)
3198 doencodes(sv, s, len)
3206 sv_catpvn(sv, hunk, 1);
3209 hunk[0] = ' ' + (077 & (*s >> 2));
3210 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3211 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3212 hunk[3] = ' ' + (077 & (s[2] & 077));
3213 sv_catpvn(sv, hunk, 4);
3217 for (s = SvPVX(sv); *s; s++) {
3221 sv_catpvn(sv, "\n", 1);
3229 SV *result = newSVpv("", l);
3230 char *result_c = SvPV(result, na); /* convenience */
3231 char *out = result_c;
3241 SvREFCNT_dec(result);
3264 SvREFCNT_dec(result);
3270 SvCUR_set(result, out - result_c);
3276 SV *pnum; /* must be '\0' terminated */
3280 char *s = SvPV(pnum, len);
3289 i = m * 10 + (*t - '0');
3291 r = (i >> 7); /* r < 10 */
3298 SvCUR_set(pnum, (STRLEN) (t - s));
3305 dSP; dMARK; dORIGMARK; dTARGET;
3306 register SV *cat = TARG;
3309 register char *pat = SvPVx(*++MARK, fromlen);
3310 register char *patend = pat + fromlen;
3315 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3316 static char *space10 = " ";
3318 /* These must not be in registers: */
3327 unsigned Quad_t auquad;
3335 sv_setpvn(cat, "", 0);
3336 while (pat < patend) {
3337 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3340 len = strchr("@Xxu", datumtype) ? 0 : items;
3343 else if (isDIGIT(*pat)) {
3345 while (isDIGIT(*pat))
3346 len = (len * 10) + (*pat++ - '0');
3354 DIE("%% may only be used in unpack");
3365 if (SvCUR(cat) < len)
3366 DIE("X outside of string");
3373 sv_catpvn(cat, null10, 10);
3376 sv_catpvn(cat, null10, len);
3381 aptr = SvPV(fromstr, fromlen);
3385 sv_catpvn(cat, aptr, len);
3387 sv_catpvn(cat, aptr, fromlen);
3389 if (datumtype == 'A') {
3391 sv_catpvn(cat, space10, 10);
3394 sv_catpvn(cat, space10, len);
3398 sv_catpvn(cat, null10, 10);
3401 sv_catpvn(cat, null10, len);
3408 char *savepat = pat;
3413 aptr = SvPV(fromstr, fromlen);
3418 SvCUR(cat) += (len+7)/8;
3419 SvGROW(cat, SvCUR(cat) + 1);
3420 aptr = SvPVX(cat) + aint;
3425 if (datumtype == 'B') {
3426 for (len = 0; len++ < aint;) {
3427 items |= *pat++ & 1;
3431 *aptr++ = items & 0xff;
3437 for (len = 0; len++ < aint;) {
3443 *aptr++ = items & 0xff;
3449 if (datumtype == 'B')
3450 items <<= 7 - (aint & 7);
3452 items >>= 7 - (aint & 7);
3453 *aptr++ = items & 0xff;
3455 pat = SvPVX(cat) + SvCUR(cat);
3466 char *savepat = pat;
3471 aptr = SvPV(fromstr, fromlen);
3476 SvCUR(cat) += (len+1)/2;
3477 SvGROW(cat, SvCUR(cat) + 1);
3478 aptr = SvPVX(cat) + aint;
3483 if (datumtype == 'H') {
3484 for (len = 0; len++ < aint;) {
3486 items |= ((*pat++ & 15) + 9) & 15;
3488 items |= *pat++ & 15;
3492 *aptr++ = items & 0xff;
3498 for (len = 0; len++ < aint;) {
3500 items |= (((*pat++ & 15) + 9) & 15) << 4;
3502 items |= (*pat++ & 15) << 4;
3506 *aptr++ = items & 0xff;
3512 *aptr++ = items & 0xff;
3513 pat = SvPVX(cat) + SvCUR(cat);
3525 aint = SvIV(fromstr);
3527 sv_catpvn(cat, &achar, sizeof(char));
3530 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3535 afloat = (float)SvNV(fromstr);
3536 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3543 adouble = (double)SvNV(fromstr);
3544 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3550 ashort = (I16)SvIV(fromstr);
3552 ashort = htons(ashort);
3554 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3560 ashort = (I16)SvIV(fromstr);
3562 ashort = htovs(ashort);
3564 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3571 ashort = (I16)SvIV(fromstr);
3572 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3578 auint = U_I(SvNV(fromstr));
3579 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3585 adouble = floor(SvNV(fromstr));
3588 croak("Cannot compress negative numbers");
3590 if (adouble <= UV_MAX) {
3591 char buf[1 + sizeof(UV)];
3592 char *in = buf + sizeof(buf);
3593 UV auv = U_V(adouble);;
3596 *--in = (auv & 0x7f) | 0x80;
3599 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3600 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3602 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3603 char *from, *result, *in;
3608 /* Copy string and check for compliance */
3609 from = SvPV(fromstr, len);
3610 if ((norm = is_an_int(from, len)) == NULL)
3611 croak("can compress only unsigned integer");
3613 New('w', result, len, char);
3617 *--in = div128(norm, &done) | 0x80;
3618 result[len - 1] &= 0x7F; /* clear continue bit */
3619 sv_catpvn(cat, in, (result + len) - in);
3621 SvREFCNT_dec(norm); /* free norm */
3623 else if (SvNOKp(fromstr)) {
3624 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3625 char *in = buf + sizeof(buf);
3628 double next = floor(adouble / 128);
3629 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3630 if (--in < buf) /* this cannot happen ;-) */
3631 croak ("Cannot compress integer");
3633 } while (adouble > 0);
3634 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3635 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3638 croak("Cannot compress non integer");
3644 aint = SvIV(fromstr);
3645 sv_catpvn(cat, (char*)&aint, sizeof(int));
3651 aulong = U_L(SvNV(fromstr));
3653 aulong = htonl(aulong);
3655 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3661 aulong = U_L(SvNV(fromstr));
3663 aulong = htovl(aulong);
3665 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3671 aulong = U_L(SvNV(fromstr));
3672 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3678 along = SvIV(fromstr);
3679 sv_catpvn(cat, (char*)&along, sizeof(I32));
3686 auquad = (unsigned Quad_t)SvIV(fromstr);
3687 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3693 aquad = (Quad_t)SvIV(fromstr);
3694 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3697 #endif /* HAS_QUAD */
3699 len = 1; /* assume SV is correct length */
3704 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3705 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3710 aptr = SvPV(fromstr, fromlen);
3711 SvGROW(cat, fromlen * 4 / 3);
3716 while (fromlen > 0) {
3723 doencodes(cat, aptr, todo);
3741 register I32 limit = POPi; /* note, negative is forever */
3744 register char *s = SvPV(sv, len);
3745 char *strend = s + len;
3747 register REGEXP *rx;
3751 I32 maxiters = (strend - s) + 10;
3754 I32 origlimit = limit;
3757 AV *oldstack = curstack;
3759 I32 oldsave = savestack_ix;
3762 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3767 DIE("panic: do_split");
3768 rx = pm->op_pmregexp;
3770 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3771 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3773 if (pm->op_pmreplroot)
3774 ary = GvAVn((GV*)pm->op_pmreplroot);
3775 else if (gimme != G_ARRAY)
3779 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3783 for (i = AvFILL(ary); i >= 0; i--)
3784 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3788 /* temporarily switch stacks */
3789 SWITCHSTACK(curstack, ary);
3791 base = SP - stack_base;
3793 if (pm->op_pmflags & PMf_SKIPWHITE) {
3794 if (pm->op_pmflags & PMf_LOCALE) {
3795 while (isSPACE_LC(*s))
3803 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3805 multiline = pm->op_pmflags & PMf_MULTILINE;
3809 limit = maxiters + 2;
3810 if (pm->op_pmflags & PMf_WHITE) {
3813 while (m < strend &&
3814 !((pm->op_pmflags & PMf_LOCALE)
3815 ? isSPACE_LC(*m) : isSPACE(*m)))
3820 dstr = NEWSV(30, m-s);
3821 sv_setpvn(dstr, s, m-s);
3827 while (s < strend &&
3828 ((pm->op_pmflags & PMf_LOCALE)
3829 ? isSPACE_LC(*s) : isSPACE(*s)))
3833 else if (strEQ("^", rx->precomp)) {
3836 for (m = s; m < strend && *m != '\n'; m++) ;
3840 dstr = NEWSV(30, m-s);
3841 sv_setpvn(dstr, s, m-s);
3848 else if (pm->op_pmshort && !rx->nparens) {
3849 i = SvCUR(pm->op_pmshort);
3851 i = *SvPVX(pm->op_pmshort);
3854 for (m = s; m < strend && *m != i; m++) ;
3857 dstr = NEWSV(30, m-s);
3858 sv_setpvn(dstr, s, m-s);
3867 while (s < strend && --limit &&
3868 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3872 dstr = NEWSV(31, m-s);
3873 sv_setpvn(dstr, s, m-s);
3882 maxiters += (strend - s) * rx->nparens;
3883 while (s < strend && --limit &&
3884 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3886 TAINT_IF(rx->exec_tainted);
3888 && rx->subbase != orig) {
3893 strend = s + (strend - m);
3896 dstr = NEWSV(32, m-s);
3897 sv_setpvn(dstr, s, m-s);
3902 for (i = 1; i <= rx->nparens; i++) {
3906 dstr = NEWSV(33, m-s);
3907 sv_setpvn(dstr, s, m-s);
3910 dstr = NEWSV(33, 0);
3919 LEAVE_SCOPE(oldsave);
3920 iters = (SP - stack_base) - base;
3921 if (iters > maxiters)
3924 /* keep field after final delim? */
3925 if (s < strend || (iters && origlimit)) {
3926 dstr = NEWSV(34, strend-s);
3927 sv_setpvn(dstr, s, strend-s);
3933 else if (!origlimit) {
3934 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3938 SWITCHSTACK(ary, oldstack);
3939 if (gimme == G_ARRAY) {
3941 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3947 if (gimme == G_ARRAY)
3950 if (iters || !pm->op_pmreplroot) {