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));
267 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
269 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
277 CV* cv = (CV*)curpad[op->op_targ];
279 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
295 if (GIMME != G_ARRAY) {
299 EXTEND_MORTAL(SP - MARK);
301 *MARK = refto(*MARK);
311 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
317 else if (SvPADTMP(sv))
321 (void)SvREFCNT_inc(sv);
324 sv_upgrade(rv, SVt_RV);
338 if (sv && SvGMAGICAL(sv))
341 if (!sv || !SvROK(sv))
345 pv = sv_reftype(sv,TRUE);
346 PUSHp(pv, strlen(pv));
356 stash = curcop->cop_stash;
358 stash = gv_stashsv(POPs, TRUE);
360 (void)sv_bless(TOPs, stash);
364 /* Pattern matching */
369 register unsigned char *s;
372 register I32 *sfirst;
377 s = (unsigned char*)(SvPV(sv, len));
379 if (sv == lastscream)
383 SvSCREAM_off(lastscream);
384 SvREFCNT_dec(lastscream);
386 lastscream = SvREFCNT_inc(sv);
392 if (pos > maxscream) {
394 maxscream = pos + 80;
395 New(301, screamfirst, 256, I32);
396 New(302, screamnext, maxscream, I32);
399 maxscream = pos + pos / 4;
400 Renew(screamnext, maxscream, I32);
404 sfirst = screamfirst;
407 if (!sfirst || !snext)
408 DIE("do_study: out of memory");
410 for (ch = 256; ch; --ch)
417 snext[pos] = sfirst[ch] - pos;
424 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
427 XPUSHs(sv_2mortal(newSViv((I32)retval)));
436 if (op->op_flags & OPf_STACKED)
442 TARG = sv_newmortal();
443 PUSHi(do_trans(sv, op));
447 /* Lvalue operators. */
469 SETi(do_chomp(TOPs));
476 register I32 count = 0;
479 count += do_chomp(POPs);
490 if (!sv || !SvANY(sv))
492 switch (SvTYPE(sv)) {
494 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
498 if (HvARRAY(sv) || SvRMAGICAL(sv))
502 if (CvROOT(sv) || CvXSUB(sv))
526 if (SvTHINKFIRST(sv)) {
533 switch (SvTYPE(sv)) {
548 sv_setsv(sv, &sv_undef);
552 if (SvPOK(sv) && SvLEN(sv)) {
555 SvPV_set(sv, Nullch);
568 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
569 SvIVX(TOPs) != IV_MIN)
572 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
583 sv_setsv(TARG, TOPs);
584 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
585 SvIVX(TOPs) != IV_MAX)
588 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
602 sv_setsv(TARG, TOPs);
603 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
604 SvIVX(TOPs) != IV_MIN)
607 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
616 /* Ordinary operators. */
620 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
623 SETn( pow( left, right) );
630 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
633 SETn( left * right );
640 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
645 DIE("Illegal division by zero");
647 /* insure that 20./5. == 4. */
650 if ((double)I_V(left) == left &&
651 (double)I_V(right) == right &&
652 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
655 value = left / right;
659 value = left / right;
668 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
674 DIE("Illegal modulus zero");
676 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
677 register IV left = SvIVX(TOPs);
679 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
681 SETi( left % right );
684 register double left = USE_LEFT(TOPs) ? SvNV(TOPs) : 0.0;
686 SETu( (right - (U_V(-left) - 1) % right) - 1 );
688 SETu( U_V(left) % right );
696 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
698 register I32 count = POPi;
699 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
701 I32 items = SP - MARK;
713 repeatcpy((char*)(MARK + items), (char*)MARK,
714 items * sizeof(SV*), count - 1);
720 else { /* Note: mark already snarfed by pp_list */
725 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
726 if (SvREADONLY(tmpstr) && curcop != &compiling)
727 DIE("Can't x= to readonly value");
731 if (USE_LEFT(tmpstr) || SvTYPE(tmpstr) > SVt_PVMG) {
732 SvSetSV(TARG, tmpstr);
733 SvPV_force(TARG, len);
738 SvGROW(TARG, (count * len) + 1);
739 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
740 SvCUR(TARG) *= count;
744 (void)SvPOK_only(TARG);
747 sv_setsv(TARG, &sv_no);
756 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
759 SETn( left - right );
766 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
769 if (op->op_private & HINT_INTEGER) {
783 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
786 if (op->op_private & HINT_INTEGER) {
800 dSP; tryAMAGICbinSET(lt,0);
803 SETs((TOPn < value) ? &sv_yes : &sv_no);
810 dSP; tryAMAGICbinSET(gt,0);
813 SETs((TOPn > value) ? &sv_yes : &sv_no);
820 dSP; tryAMAGICbinSET(le,0);
823 SETs((TOPn <= value) ? &sv_yes : &sv_no);
830 dSP; tryAMAGICbinSET(ge,0);
833 SETs((TOPn >= value) ? &sv_yes : &sv_no);
840 dSP; tryAMAGICbinSET(ne,0);
843 SETs((TOPn != value) ? &sv_yes : &sv_no);
850 dSP; dTARGET; tryAMAGICbin(ncmp,0);
857 else if (left < right)
868 dSP; tryAMAGICbinSET(slt,0);
871 int cmp = ((op->op_private & OPpLOCALE)
872 ? sv_cmp_locale(left, right)
873 : sv_cmp(left, right));
874 SETs( cmp < 0 ? &sv_yes : &sv_no );
881 dSP; tryAMAGICbinSET(sgt,0);
884 int cmp = ((op->op_private & OPpLOCALE)
885 ? sv_cmp_locale(left, right)
886 : sv_cmp(left, right));
887 SETs( cmp > 0 ? &sv_yes : &sv_no );
894 dSP; tryAMAGICbinSET(sle,0);
897 int cmp = ((op->op_private & OPpLOCALE)
898 ? sv_cmp_locale(left, right)
899 : sv_cmp(left, right));
900 SETs( cmp <= 0 ? &sv_yes : &sv_no );
907 dSP; tryAMAGICbinSET(sge,0);
910 int cmp = ((op->op_private & OPpLOCALE)
911 ? sv_cmp_locale(left, right)
912 : sv_cmp(left, right));
913 SETs( cmp >= 0 ? &sv_yes : &sv_no );
920 dSP; tryAMAGICbinSET(seq,0);
923 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
930 dSP; tryAMAGICbinSET(sne,0);
933 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
940 dSP; dTARGET; tryAMAGICbin(scmp,0);
943 int cmp = ((op->op_private & OPpLOCALE)
944 ? sv_cmp_locale(left, right)
945 : sv_cmp(left, right));
953 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
956 if (SvNIOKp(left) || SvNIOKp(right)) {
957 if (op->op_private & HINT_INTEGER) {
958 IBW value = SvIV(left) & SvIV(right);
962 UBW value = SvUV(left) & SvUV(right);
967 do_vop(op->op_type, TARG, left, right);
976 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
979 if (SvNIOKp(left) || SvNIOKp(right)) {
980 if (op->op_private & HINT_INTEGER) {
981 IBW value = SvIV(left) ^ SvIV(right);
985 UBW value = SvUV(left) ^ SvUV(right);
990 do_vop(op->op_type, TARG, left, right);
999 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1002 if (SvNIOKp(left) || SvNIOKp(right)) {
1003 if (op->op_private & HINT_INTEGER) {
1004 IBW value = SvIV(left) | SvIV(right);
1008 UBW value = SvUV(left) | SvUV(right);
1013 do_vop(op->op_type, TARG, left, right);
1022 dSP; dTARGET; tryAMAGICun(neg);
1027 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1029 else if (SvNIOKp(sv))
1031 else if (SvPOKp(sv)) {
1033 char *s = SvPV(sv, len);
1034 if (isIDFIRST(*s)) {
1035 sv_setpvn(TARG, "-", 1);
1038 else if (*s == '+' || *s == '-') {
1040 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1043 sv_setnv(TARG, -SvNV(sv));
1055 dSP; tryAMAGICunSET(not);
1056 #endif /* OVERLOAD */
1057 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1063 dSP; dTARGET; tryAMAGICun(compl);
1067 if (op->op_private & HINT_INTEGER) {
1068 IBW value = ~SvIV(sv);
1072 UBW value = ~SvUV(sv);
1077 register char *tmps;
1078 register long *tmpl;
1083 tmps = SvPV_force(TARG, len);
1086 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1089 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1093 for ( ; anum > 0; anum--, tmps++)
1102 /* integer versions of some of the above */
1106 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1109 SETi( left * right );
1116 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1120 DIE("Illegal division by zero");
1121 value = POPi / value;
1129 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1132 SETi( left % right );
1139 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1142 SETi( left + right );
1149 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1152 SETi( left - right );
1159 dSP; tryAMAGICbinSET(lt,0);
1162 SETs((left < right) ? &sv_yes : &sv_no);
1169 dSP; tryAMAGICbinSET(gt,0);
1172 SETs((left > right) ? &sv_yes : &sv_no);
1179 dSP; tryAMAGICbinSET(le,0);
1182 SETs((left <= right) ? &sv_yes : &sv_no);
1189 dSP; tryAMAGICbinSET(ge,0);
1192 SETs((left >= right) ? &sv_yes : &sv_no);
1199 dSP; tryAMAGICbinSET(eq,0);
1202 SETs((left == right) ? &sv_yes : &sv_no);
1209 dSP; tryAMAGICbinSET(ne,0);
1212 SETs((left != right) ? &sv_yes : &sv_no);
1219 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1226 else if (left < right)
1237 dSP; dTARGET; tryAMAGICun(neg);
1242 /* High falutin' math. */
1246 dSP; dTARGET; tryAMAGICbin(atan2,0);
1249 SETn(atan2(left, right));
1256 dSP; dTARGET; tryAMAGICun(sin);
1268 dSP; dTARGET; tryAMAGICun(cos);
1289 value = rand() * value / 2147483648.0;
1292 value = rand() * value / 65536.0;
1295 value = rand() * value / 32768.0;
1297 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1312 # include <starlet.h>
1313 unsigned int when[2];
1314 _ckvmssts(sys$gettim(when));
1315 anum = when[0] ^ when[1];
1317 # ifdef HAS_GETTIMEOFDAY
1318 struct timeval when;
1319 gettimeofday(&when,(struct timezone *) 0);
1320 anum = when.tv_sec ^ when.tv_usec;
1327 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1328 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1329 /* What is a good hashing algorithm here? */
1330 anum ^= ( ( 269 * (U32)getpid())
1331 ^ (26107 * (U32)&when)
1332 ^ (73819 * (U32)stack_sp));
1344 dSP; dTARGET; tryAMAGICun(exp);
1356 dSP; dTARGET; tryAMAGICun(log);
1361 SET_NUMERIC_STANDARD();
1362 DIE("Can't take log of %g", value);
1372 dSP; dTARGET; tryAMAGICun(sqrt);
1377 SET_NUMERIC_STANDARD();
1378 DIE("Can't take sqrt of %g", value);
1380 value = sqrt(value);
1392 (void)modf(value, &value);
1394 (void)modf(-value, &value);
1403 dSP; dTARGET; tryAMAGICun(abs);
1423 XPUSHu(scan_hex(tmps, 99, &argtype));
1435 while (*tmps && isSPACE(*tmps))
1440 value = scan_hex(++tmps, 99, &argtype);
1442 value = scan_oct(tmps, 99, &argtype);
1452 SETi( sv_len(TOPs) );
1464 I32 lvalue = op->op_flags & OPf_MOD;
1466 I32 arybase = curcop->cop_arybase;
1470 pos = POPi - arybase;
1472 tmps = SvPV(sv, curlen);
1474 pos += curlen + arybase;
1475 if (pos < 0 || pos > curlen) {
1476 if (dowarn || lvalue)
1477 warn("substr outside of string");
1484 len += curlen - pos;
1489 rem = curlen - pos; /* rem=how many bytes left*/
1492 sv_setpvn(TARG, tmps, rem);
1493 if (lvalue) { /* it's an lvalue! */
1494 if (!SvGMAGICAL(sv)) {
1498 warn("Attempt to use reference as lvalue in substr");
1500 if (SvOK(sv)) /* is it defined ? */
1501 (void)SvPOK_only(sv);
1503 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1506 if (SvTYPE(TARG) < SVt_PVLV) {
1507 sv_upgrade(TARG, SVt_PVLV);
1508 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1513 LvTARGOFF(TARG) = pos;
1514 LvTARGLEN(TARG) = rem;
1517 PUSHs(TARG); /* avoid SvSETMAGIC here */
1524 register I32 size = POPi;
1525 register I32 offset = POPi;
1526 register SV *src = POPs;
1527 I32 lvalue = op->op_flags & OPf_MOD;
1529 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1530 unsigned long retnum;
1533 offset *= size; /* turn into bit offset */
1534 len = (offset + size + 7) / 8;
1535 if (offset < 0 || size < 1)
1538 if (lvalue) { /* it's an lvalue! */
1539 if (SvTYPE(TARG) < SVt_PVLV) {
1540 sv_upgrade(TARG, SVt_PVLV);
1541 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1546 LvTARGOFF(TARG) = offset;
1547 LvTARGLEN(TARG) = size;
1555 if (offset >= srclen)
1558 retnum = (unsigned long) s[offset] << 8;
1560 else if (size == 32) {
1561 if (offset >= srclen)
1563 else if (offset + 1 >= srclen)
1564 retnum = (unsigned long) s[offset] << 24;
1565 else if (offset + 2 >= srclen)
1566 retnum = ((unsigned long) s[offset] << 24) +
1567 ((unsigned long) s[offset + 1] << 16);
1569 retnum = ((unsigned long) s[offset] << 24) +
1570 ((unsigned long) s[offset + 1] << 16) +
1571 (s[offset + 2] << 8);
1576 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1581 else if (size == 16)
1582 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1583 else if (size == 32)
1584 retnum = ((unsigned long) s[offset] << 24) +
1585 ((unsigned long) s[offset + 1] << 16) +
1586 (s[offset + 2] << 8) + s[offset+3];
1590 sv_setiv(TARG, (I32)retnum);
1605 I32 arybase = curcop->cop_arybase;
1610 offset = POPi - arybase;
1613 tmps = SvPV(big, biglen);
1616 else if (offset > biglen)
1618 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1619 (unsigned char*)tmps + biglen, little)))
1620 retval = -1 + arybase;
1622 retval = tmps2 - tmps + arybase;
1639 I32 arybase = curcop->cop_arybase;
1645 tmps2 = SvPV(little, llen);
1646 tmps = SvPV(big, blen);
1650 offset = SvIV(offstr) - arybase + llen;
1653 else if (offset > blen)
1655 if (!(tmps2 = rninstr(tmps, tmps + offset,
1656 tmps2, tmps2 + llen)))
1657 retval = -1 + arybase;
1659 retval = tmps2 - tmps + arybase;
1666 dSP; dMARK; dORIGMARK; dTARGET;
1667 #ifdef USE_LOCALE_NUMERIC
1668 if (op->op_private & OPpLOCALE)
1669 SET_NUMERIC_LOCAL();
1671 SET_NUMERIC_STANDARD();
1673 do_sprintf(TARG, SP-MARK, MARK+1);
1674 TAINT_IF(SvTAINTED(TARG));
1688 value = (I32) (*tmps & 255);
1693 value = (I32) (anum & 255);
1704 (void)SvUPGRADE(TARG,SVt_PV);
1710 (void)SvPOK_only(TARG);
1717 dSP; dTARGET; dPOPTOPssrl;
1719 char *tmps = SvPV(left, na);
1721 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1723 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1727 "The crypt() function is unimplemented due to excessive paranoia.");
1739 if (!SvPADTMP(sv)) {
1745 s = SvPV_force(sv, na);
1747 if (op->op_private & OPpLOCALE) {
1750 *s = toUPPER_LC(*s);
1765 if (!SvPADTMP(sv)) {
1771 s = SvPV_force(sv, na);
1773 if (op->op_private & OPpLOCALE) {
1776 *s = toLOWER_LC(*s);
1793 if (!SvPADTMP(sv)) {
1800 s = SvPV_force(sv, len);
1802 register char *send = s + len;
1804 if (op->op_private & OPpLOCALE) {
1807 for (; s < send; s++)
1808 *s = toUPPER_LC(*s);
1811 for (; s < send; s++)
1825 if (!SvPADTMP(sv)) {
1832 s = SvPV_force(sv, len);
1834 register char *send = s + len;
1836 if (op->op_private & OPpLOCALE) {
1839 for (; s < send; s++)
1840 *s = toLOWER_LC(*s);
1843 for (; s < send; s++)
1855 register char *s = SvPV(sv,len);
1859 (void)SvUPGRADE(TARG, SVt_PV);
1860 SvGROW(TARG, (len * 2) + 1);
1868 SvCUR_set(TARG, d - SvPVX(TARG));
1869 (void)SvPOK_only(TARG);
1872 sv_setpvn(TARG, s, len);
1881 dSP; dMARK; dORIGMARK;
1883 register AV* av = (AV*)POPs;
1884 register I32 lval = op->op_flags & OPf_MOD;
1885 I32 arybase = curcop->cop_arybase;
1888 if (SvTYPE(av) == SVt_PVAV) {
1889 if (lval && op->op_private & OPpLVAL_INTRO) {
1891 for (svp = mark + 1; svp <= sp; svp++) {
1896 if (max > AvMAX(av))
1899 while (++MARK <= SP) {
1900 elem = SvIVx(*MARK);
1904 svp = av_fetch(av, elem, lval);
1906 if (!svp || *svp == &sv_undef)
1907 DIE(no_aelem, elem);
1908 if (op->op_private & OPpLVAL_INTRO)
1911 *MARK = svp ? *svp : &sv_undef;
1914 if (GIMME != G_ARRAY) {
1922 /* Associative arrays. */
1927 HV *hash = (HV*)POPs;
1931 entry = hv_iternext(hash); /* might clobber stack_sp */
1936 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1937 if (GIMME == G_ARRAY) {
1939 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1944 else if (GIMME == G_SCALAR)
1966 if (op->op_private & OPpSLICE) {
1969 if (SvTYPE(hv) != SVt_PVHV)
1970 DIE("Not a HASH reference");
1971 while (++MARK <= SP) {
1972 sv = hv_delete_ent(hv, *MARK,
1973 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1974 *MARK = sv ? sv : &sv_undef;
1976 if (GIMME != G_ARRAY) {
1985 if (SvTYPE(hv) != SVt_PVHV)
1986 DIE("Not a HASH reference");
1987 sv = hv_delete_ent(hv, keysv,
1988 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2002 if (SvTYPE(hv) != SVt_PVHV) {
2003 DIE("Not a HASH reference");
2005 if (hv_exists_ent(hv, tmpsv, 0))
2012 dSP; dMARK; dORIGMARK;
2014 register HV *hv = (HV*)POPs;
2015 register I32 lval = op->op_flags & OPf_MOD;
2017 if (SvTYPE(hv) == SVt_PVHV) {
2018 while (++MARK <= SP) {
2021 he = hv_fetch_ent(hv, keysv, lval, 0);
2023 if (!he || HeVAL(he) == &sv_undef)
2024 DIE(no_helem, SvPV(keysv, na));
2025 if (op->op_private & OPpLVAL_INTRO)
2026 save_svref(&HeVAL(he));
2028 *MARK = he ? HeVAL(he) : &sv_undef;
2031 if (GIMME != G_ARRAY) {
2039 /* List operators. */
2044 if (GIMME != G_ARRAY) {
2046 *MARK = *SP; /* unwanted list, return last item */
2057 SV **lastrelem = stack_sp;
2058 SV **lastlelem = stack_base + POPMARK;
2059 SV **firstlelem = stack_base + POPMARK + 1;
2060 register SV **firstrelem = lastlelem + 1;
2061 I32 arybase = curcop->cop_arybase;
2062 I32 lval = op->op_flags & OPf_MOD;
2063 I32 is_something_there = lval;
2065 register I32 max = lastrelem - lastlelem;
2066 register SV **lelem;
2069 if (GIMME != G_ARRAY) {
2070 ix = SvIVx(*lastlelem);
2075 if (ix < 0 || ix >= max)
2076 *firstlelem = &sv_undef;
2078 *firstlelem = firstrelem[ix];
2084 SP = firstlelem - 1;
2088 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2094 else if (!(*lelem = firstrelem[ix]))
2099 if (ix >= max || !(*lelem = firstrelem[ix]))
2102 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2103 is_something_there = TRUE;
2105 if (is_something_there)
2108 SP = firstlelem - 1;
2115 I32 items = SP - MARK;
2117 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2123 dSP; dMARK; dORIGMARK;
2124 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2128 SV *val = NEWSV(46, 0);
2130 sv_setsv(val, *++MARK);
2132 warn("Odd number of elements in hash list");
2133 (void)hv_store_ent(hv,key,val,0);
2142 dSP; dMARK; dORIGMARK;
2143 register AV *ary = (AV*)*++MARK;
2147 register I32 offset;
2148 register I32 length;
2157 offset = SvIVx(*MARK);
2159 offset += AvFILL(ary) + 1;
2161 offset -= curcop->cop_arybase;
2163 length = SvIVx(*MARK++);
2168 length = AvMAX(ary) + 1; /* close enough to infinity */
2172 length = AvMAX(ary) + 1;
2180 if (offset > AvFILL(ary) + 1)
2181 offset = AvFILL(ary) + 1;
2182 after = AvFILL(ary) + 1 - (offset + length);
2183 if (after < 0) { /* not that much array */
2184 length += after; /* offset+length now in array */
2190 /* At this point, MARK .. SP-1 is our new LIST */
2193 diff = newlen - length;
2195 if (diff < 0) { /* shrinking the area */
2197 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2198 Copy(MARK, tmparyval, newlen, SV*);
2201 MARK = ORIGMARK + 1;
2202 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2203 MEXTEND(MARK, length);
2204 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2206 EXTEND_MORTAL(length);
2207 for (i = length, dst = MARK; i; i--) {
2208 if (!SvIMMORTAL(*dst))
2209 sv_2mortal(*dst); /* free them eventualy */
2216 *MARK = AvARRAY(ary)[offset+length-1];
2218 if (!SvIMMORTAL(*MARK))
2220 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2221 SvREFCNT_dec(*dst++); /* free them now */
2224 AvFILL(ary) += diff;
2226 /* pull up or down? */
2228 if (offset < after) { /* easier to pull up */
2229 if (offset) { /* esp. if nothing to pull */
2230 src = &AvARRAY(ary)[offset-1];
2231 dst = src - diff; /* diff is negative */
2232 for (i = offset; i > 0; i--) /* can't trust Copy */
2236 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2240 if (after) { /* anything to pull down? */
2241 src = AvARRAY(ary) + offset + length;
2242 dst = src + diff; /* diff is negative */
2243 Move(src, dst, after, SV*);
2245 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2246 /* avoid later double free */
2250 dst[--i] = &sv_undef;
2253 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2255 *dst = NEWSV(46, 0);
2256 sv_setsv(*dst++, *src++);
2258 Safefree(tmparyval);
2261 else { /* no, expanding (or same) */
2263 New(452, tmparyval, length, SV*); /* so remember deletion */
2264 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2267 if (diff > 0) { /* expanding */
2269 /* push up or down? */
2271 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2275 Move(src, dst, offset, SV*);
2277 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2279 AvFILL(ary) += diff;
2282 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2283 av_extend(ary, AvFILL(ary) + diff);
2284 AvFILL(ary) += diff;
2287 dst = AvARRAY(ary) + AvFILL(ary);
2289 for (i = after; i; i--) {
2296 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2297 *dst = NEWSV(46, 0);
2298 sv_setsv(*dst++, *src++);
2300 MARK = ORIGMARK + 1;
2301 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2303 Copy(tmparyval, MARK, length, SV*);
2305 EXTEND_MORTAL(length);
2306 for (i = length, dst = MARK; i; i--) {
2307 if (!SvIMMORTAL(*dst))
2308 sv_2mortal(*dst); /* free them eventualy */
2312 Safefree(tmparyval);
2316 else if (length--) {
2317 *MARK = tmparyval[length];
2319 if (!SvIMMORTAL(*MARK))
2321 while (length-- > 0)
2322 SvREFCNT_dec(tmparyval[length]);
2324 Safefree(tmparyval);
2335 dSP; dMARK; dORIGMARK; dTARGET;
2336 register AV *ary = (AV*)*++MARK;
2337 register SV *sv = &sv_undef;
2339 for (++MARK; MARK <= SP; MARK++) {
2342 sv_setsv(sv, *MARK);
2346 PUSHi( AvFILL(ary) + 1 );
2354 SV *sv = av_pop(av);
2355 if (!SvIMMORTAL(sv) && AvREAL(av))
2356 (void)sv_2mortal(sv);
2365 SV *sv = av_shift(av);
2369 if (!SvIMMORTAL(sv) && AvREAL(av))
2370 (void)sv_2mortal(sv);
2377 dSP; dMARK; dORIGMARK; dTARGET;
2378 register AV *ary = (AV*)*++MARK;
2382 av_unshift(ary, SP - MARK);
2385 sv_setsv(sv, *++MARK);
2386 (void)av_store(ary, i++, sv);
2390 PUSHi( AvFILL(ary) + 1 );
2400 if (GIMME == G_ARRAY) {
2411 register char *down;
2417 do_join(TARG, &sv_no, MARK, SP);
2419 sv_setsv(TARG, *SP);
2420 up = SvPV_force(TARG, len);
2422 down = SvPVX(TARG) + len - 1;
2428 (void)SvPOK_only(TARG);
2442 char *s = SvPV(sv, len);
2446 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2447 SV *new = newSVpv("0000000000", 10);
2450 SvREFCNT_dec(sv); /* free old sv */
2455 while (!*t) /* trailing '\0'? */
2458 i = ((*t - '0') << 7) + m;
2459 *(t--) = '0' + (i % 10);
2465 /* Explosives and implosives. */
2475 register char *pat = SvPV(left, llen);
2476 register char *s = SvPV(right, rlen);
2477 char *strend = s + rlen;
2479 register char *patend = pat + llen;
2484 /* These must not be in registers: */
2495 unsigned Quad_t auquad;
2501 register U32 culong;
2503 static char* bitcount = 0;
2505 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2507 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2508 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2510 while (isDIGIT(*patend) || *patend == '*')
2516 while (pat < patend) {
2521 else if (*pat == '*') {
2522 len = strend - strbeg; /* long enough */
2525 else if (isDIGIT(*pat)) {
2527 while (isDIGIT(*pat))
2528 len = (len * 10) + (*pat++ - '0');
2531 len = (datumtype != '@');
2536 if (len == 1 && pat[-1] != '1')
2545 if (len > strend - strbeg)
2546 DIE("@ outside of string");
2550 if (len > s - strbeg)
2551 DIE("X outside of string");
2555 if (len > strend - s)
2556 DIE("x outside of string");
2561 if (len > strend - s)
2564 goto uchar_checksum;
2565 sv = NEWSV(35, len);
2566 sv_setpvn(sv, s, len);
2568 if (datumtype == 'A') {
2569 aptr = s; /* borrow register */
2570 s = SvPVX(sv) + len - 1;
2571 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2574 SvCUR_set(sv, s - SvPVX(sv));
2575 s = aptr; /* unborrow register */
2577 XPUSHs(sv_2mortal(sv));
2581 if (pat[-1] == '*' || len > (strend - s) * 8)
2582 len = (strend - s) * 8;
2585 Newz(601, bitcount, 256, char);
2586 for (bits = 1; bits < 256; bits++) {
2587 if (bits & 1) bitcount[bits]++;
2588 if (bits & 2) bitcount[bits]++;
2589 if (bits & 4) bitcount[bits]++;
2590 if (bits & 8) bitcount[bits]++;
2591 if (bits & 16) bitcount[bits]++;
2592 if (bits & 32) bitcount[bits]++;
2593 if (bits & 64) bitcount[bits]++;
2594 if (bits & 128) bitcount[bits]++;
2598 culong += bitcount[*(unsigned char*)s++];
2603 if (datumtype == 'b') {
2605 if (bits & 1) culong++;
2611 if (bits & 128) culong++;
2618 sv = NEWSV(35, len + 1);
2621 aptr = pat; /* borrow register */
2623 if (datumtype == 'b') {
2625 for (len = 0; len < aint; len++) {
2626 if (len & 7) /*SUPPRESS 595*/
2630 *pat++ = '0' + (bits & 1);
2635 for (len = 0; len < aint; len++) {
2640 *pat++ = '0' + ((bits & 128) != 0);
2644 pat = aptr; /* unborrow register */
2645 XPUSHs(sv_2mortal(sv));
2649 if (pat[-1] == '*' || len > (strend - s) * 2)
2650 len = (strend - s) * 2;
2651 sv = NEWSV(35, len + 1);
2654 aptr = pat; /* borrow register */
2656 if (datumtype == 'h') {
2658 for (len = 0; len < aint; len++) {
2663 *pat++ = hexdigit[bits & 15];
2668 for (len = 0; len < aint; len++) {
2673 *pat++ = hexdigit[(bits >> 4) & 15];
2677 pat = aptr; /* unborrow register */
2678 XPUSHs(sv_2mortal(sv));
2681 if (len > strend - s)
2686 if (aint >= 128) /* fake up signed chars */
2696 if (aint >= 128) /* fake up signed chars */
2699 sv_setiv(sv, (I32)aint);
2700 PUSHs(sv_2mortal(sv));
2705 if (len > strend - s)
2720 sv_setiv(sv, (I32)auint);
2721 PUSHs(sv_2mortal(sv));
2726 along = (strend - s) / sizeof(I16);
2731 Copy(s, &ashort, 1, I16);
2740 Copy(s, &ashort, 1, I16);
2743 sv_setiv(sv, (I32)ashort);
2744 PUSHs(sv_2mortal(sv));
2751 along = (strend - s) / sizeof(U16);
2756 Copy(s, &aushort, 1, U16);
2759 if (datumtype == 'n')
2760 aushort = ntohs(aushort);
2763 if (datumtype == 'v')
2764 aushort = vtohs(aushort);
2773 Copy(s, &aushort, 1, U16);
2777 if (datumtype == 'n')
2778 aushort = ntohs(aushort);
2781 if (datumtype == 'v')
2782 aushort = vtohs(aushort);
2784 sv_setiv(sv, (I32)aushort);
2785 PUSHs(sv_2mortal(sv));
2790 along = (strend - s) / sizeof(int);
2795 Copy(s, &aint, 1, int);
2798 cdouble += (double)aint;
2807 Copy(s, &aint, 1, int);
2810 sv_setiv(sv, (I32)aint);
2811 PUSHs(sv_2mortal(sv));
2816 along = (strend - s) / sizeof(unsigned int);
2821 Copy(s, &auint, 1, unsigned int);
2822 s += sizeof(unsigned int);
2824 cdouble += (double)auint;
2833 Copy(s, &auint, 1, unsigned int);
2834 s += sizeof(unsigned int);
2836 if (auint <= I32_MAX)
2837 sv_setiv(sv, (I32)auint);
2839 sv_setnv(sv, (double)auint);
2840 PUSHs(sv_2mortal(sv));
2845 along = (strend - s) / sizeof(I32);
2850 Copy(s, &along, 1, I32);
2853 cdouble += (double)along;
2862 Copy(s, &along, 1, I32);
2865 sv_setiv(sv, (I32)along);
2866 PUSHs(sv_2mortal(sv));
2873 along = (strend - s) / sizeof(U32);
2878 Copy(s, &aulong, 1, U32);
2881 if (datumtype == 'N')
2882 aulong = ntohl(aulong);
2885 if (datumtype == 'V')
2886 aulong = vtohl(aulong);
2889 cdouble += (double)aulong;
2898 Copy(s, &aulong, 1, U32);
2902 if (datumtype == 'N')
2903 aulong = ntohl(aulong);
2906 if (datumtype == 'V')
2907 aulong = vtohl(aulong);
2909 sv_setnv(sv, (double)aulong);
2910 PUSHs(sv_2mortal(sv));
2915 along = (strend - s) / sizeof(char*);
2921 if (sizeof(char*) > strend - s)
2924 Copy(s, &aptr, 1, char*);
2930 PUSHs(sv_2mortal(sv));
2940 while ((len > 0) && (s < strend)) {
2941 auv = (auv << 7) | (*s & 0x7f);
2942 if (!(*s++ & 0x80)) {
2946 PUSHs(sv_2mortal(sv));
2950 else if (++bytes >= sizeof(UV)) { /* promote to string */
2951 char decn[sizeof(UV) * 3 + 1];
2954 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2955 sv = newSVpv(decn, 0);
2956 while (s < strend) {
2957 sv = mul128(sv, *s & 0x7f);
2958 if (!(*s++ & 0x80)) {
2967 PUSHs(sv_2mortal(sv));
2972 if ((s >= strend) && bytes)
2973 croak("Unterminated compressed integer");
2978 if (sizeof(char*) > strend - s)
2981 Copy(s, &aptr, 1, char*);
2986 sv_setpvn(sv, aptr, len);
2987 PUSHs(sv_2mortal(sv));
2994 if (s + sizeof(Quad_t) > strend)
2997 Copy(s, &aquad, 1, Quad_t);
2998 s += sizeof(Quad_t);
3001 sv_setiv(sv, (IV)aquad);
3002 PUSHs(sv_2mortal(sv));
3009 if (s + sizeof(unsigned Quad_t) > strend)
3012 Copy(s, &auquad, 1, unsigned Quad_t);
3013 s += sizeof(unsigned Quad_t);
3016 sv_setiv(sv, (IV)auquad);
3017 PUSHs(sv_2mortal(sv));
3021 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3024 along = (strend - s) / sizeof(float);
3029 Copy(s, &afloat, 1, float);
3038 Copy(s, &afloat, 1, float);
3041 sv_setnv(sv, (double)afloat);
3042 PUSHs(sv_2mortal(sv));
3048 along = (strend - s) / sizeof(double);
3053 Copy(s, &adouble, 1, double);
3054 s += sizeof(double);
3062 Copy(s, &adouble, 1, double);
3063 s += sizeof(double);
3065 sv_setnv(sv, (double)adouble);
3066 PUSHs(sv_2mortal(sv));
3071 along = (strend - s) * 3 / 4;
3072 sv = NEWSV(42, along);
3075 while (s < strend && *s > ' ' && *s < 'a') {
3080 len = (*s++ - ' ') & 077;
3082 if (s < strend && *s >= ' ')
3083 a = (*s++ - ' ') & 077;
3086 if (s < strend && *s >= ' ')
3087 b = (*s++ - ' ') & 077;
3090 if (s < strend && *s >= ' ')
3091 c = (*s++ - ' ') & 077;
3094 if (s < strend && *s >= ' ')
3095 d = (*s++ - ' ') & 077;
3098 hunk[0] = a << 2 | b >> 4;
3099 hunk[1] = b << 4 | c >> 2;
3100 hunk[2] = c << 6 | d;
3101 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3106 else if (s[1] == '\n') /* possible checksum byte */
3109 XPUSHs(sv_2mortal(sv));
3114 if (strchr("fFdD", datumtype) ||
3115 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3119 while (checksum >= 16) {
3123 while (checksum >= 4) {
3129 along = (1 << checksum) - 1;
3130 while (cdouble < 0.0)
3132 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3133 sv_setnv(sv, cdouble);
3136 if (checksum < 32) {
3137 along = (1 << checksum) - 1;
3138 culong &= (U32)along;
3140 sv_setnv(sv, (double)culong);
3142 XPUSHs(sv_2mortal(sv));
3146 if (sp == oldsp && GIMME != G_ARRAY)
3152 doencodes(sv, s, len)
3160 sv_catpvn(sv, hunk, 1);
3163 hunk[0] = ' ' + (077 & (*s >> 2));
3164 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3165 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3166 hunk[3] = ' ' + (077 & (s[2] & 077));
3167 sv_catpvn(sv, hunk, 4);
3171 for (s = SvPVX(sv); *s; s++) {
3175 sv_catpvn(sv, "\n", 1);
3183 SV *result = newSVpv("", l);
3184 char *result_c = SvPV(result, na); /* convenience */
3185 char *out = result_c;
3195 SvREFCNT_dec(result);
3218 SvREFCNT_dec(result);
3224 SvCUR_set(result, out - result_c);
3230 SV *pnum; /* must be '\0' terminated */
3234 char *s = SvPV(pnum, len);
3243 i = m * 10 + (*t - '0');
3245 r = (i >> 7); /* r < 10 */
3252 SvCUR_set(pnum, (STRLEN) (t - s));
3259 dSP; dMARK; dORIGMARK; dTARGET;
3260 register SV *cat = TARG;
3263 register char *pat = SvPVx(*++MARK, fromlen);
3264 register char *patend = pat + fromlen;
3269 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3270 static char *space10 = " ";
3272 /* These must not be in registers: */
3281 unsigned Quad_t auquad;
3289 sv_setpvn(cat, "", 0);
3290 while (pat < patend) {
3291 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3294 len = strchr("@Xxu", datumtype) ? 0 : items;
3297 else if (isDIGIT(*pat)) {
3299 while (isDIGIT(*pat))
3300 len = (len * 10) + (*pat++ - '0');
3308 DIE("%% may only be used in unpack");
3319 if (SvCUR(cat) < len)
3320 DIE("X outside of string");
3327 sv_catpvn(cat, null10, 10);
3330 sv_catpvn(cat, null10, len);
3335 aptr = SvPV(fromstr, fromlen);
3339 sv_catpvn(cat, aptr, len);
3341 sv_catpvn(cat, aptr, fromlen);
3343 if (datumtype == 'A') {
3345 sv_catpvn(cat, space10, 10);
3348 sv_catpvn(cat, space10, len);
3352 sv_catpvn(cat, null10, 10);
3355 sv_catpvn(cat, null10, len);
3362 char *savepat = pat;
3367 aptr = SvPV(fromstr, fromlen);
3372 SvCUR(cat) += (len+7)/8;
3373 SvGROW(cat, SvCUR(cat) + 1);
3374 aptr = SvPVX(cat) + aint;
3379 if (datumtype == 'B') {
3380 for (len = 0; len++ < aint;) {
3381 items |= *pat++ & 1;
3385 *aptr++ = items & 0xff;
3391 for (len = 0; len++ < aint;) {
3397 *aptr++ = items & 0xff;
3403 if (datumtype == 'B')
3404 items <<= 7 - (aint & 7);
3406 items >>= 7 - (aint & 7);
3407 *aptr++ = items & 0xff;
3409 pat = SvPVX(cat) + SvCUR(cat);
3420 char *savepat = pat;
3425 aptr = SvPV(fromstr, fromlen);
3430 SvCUR(cat) += (len+1)/2;
3431 SvGROW(cat, SvCUR(cat) + 1);
3432 aptr = SvPVX(cat) + aint;
3437 if (datumtype == 'H') {
3438 for (len = 0; len++ < aint;) {
3440 items |= ((*pat++ & 15) + 9) & 15;
3442 items |= *pat++ & 15;
3446 *aptr++ = items & 0xff;
3452 for (len = 0; len++ < aint;) {
3454 items |= (((*pat++ & 15) + 9) & 15) << 4;
3456 items |= (*pat++ & 15) << 4;
3460 *aptr++ = items & 0xff;
3466 *aptr++ = items & 0xff;
3467 pat = SvPVX(cat) + SvCUR(cat);
3479 aint = SvIV(fromstr);
3481 sv_catpvn(cat, &achar, sizeof(char));
3484 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3489 afloat = (float)SvNV(fromstr);
3490 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3497 adouble = (double)SvNV(fromstr);
3498 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3504 ashort = (I16)SvIV(fromstr);
3506 ashort = htons(ashort);
3508 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3514 ashort = (I16)SvIV(fromstr);
3516 ashort = htovs(ashort);
3518 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3525 ashort = (I16)SvIV(fromstr);
3526 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3532 auint = U_I(SvNV(fromstr));
3533 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3539 adouble = floor(SvNV(fromstr));
3542 croak("Cannot compress negative numbers");
3544 if (adouble <= UV_MAX) {
3545 char buf[1 + sizeof(UV)];
3546 char *in = buf + sizeof(buf);
3547 UV auv = U_V(adouble);;
3550 *--in = (auv & 0x7f) | 0x80;
3553 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3554 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3556 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3557 char *from, *result, *in;
3562 /* Copy string and check for compliance */
3563 from = SvPV(fromstr, len);
3564 if ((norm = is_an_int(from, len)) == NULL)
3565 croak("can compress only unsigned integer");
3567 New('w', result, len, char);
3571 *--in = div128(norm, &done) | 0x80;
3572 result[len - 1] &= 0x7F; /* clear continue bit */
3573 sv_catpvn(cat, in, (result + len) - in);
3575 SvREFCNT_dec(norm); /* free norm */
3577 else if (SvNOKp(fromstr)) {
3578 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3579 char *in = buf + sizeof(buf);
3582 double next = floor(adouble / 128);
3583 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3584 if (--in < buf) /* this cannot happen ;-) */
3585 croak ("Cannot compress integer");
3587 } while (adouble > 0);
3588 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3589 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3592 croak("Cannot compress non integer");
3598 aint = SvIV(fromstr);
3599 sv_catpvn(cat, (char*)&aint, sizeof(int));
3605 aulong = U_L(SvNV(fromstr));
3607 aulong = htonl(aulong);
3609 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3615 aulong = U_L(SvNV(fromstr));
3617 aulong = htovl(aulong);
3619 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3625 aulong = U_L(SvNV(fromstr));
3626 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3632 along = SvIV(fromstr);
3633 sv_catpvn(cat, (char*)&along, sizeof(I32));
3640 auquad = (unsigned Quad_t)SvIV(fromstr);
3641 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3647 aquad = (Quad_t)SvIV(fromstr);
3648 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3651 #endif /* HAS_QUAD */
3653 len = 1; /* assume SV is correct length */
3658 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3659 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3664 aptr = SvPV(fromstr, fromlen);
3665 SvGROW(cat, fromlen * 4 / 3);
3670 while (fromlen > 0) {
3677 doencodes(cat, aptr, todo);
3695 register I32 limit = POPi; /* note, negative is forever */
3698 register char *s = SvPV(sv, len);
3699 char *strend = s + len;
3700 register PMOP *pm = (PMOP*)POPs;
3704 I32 maxiters = (strend - s) + 10;
3707 I32 origlimit = limit;
3710 AV *oldstack = curstack;
3711 register REGEXP *rx = pm->op_pmregexp;
3713 I32 oldsave = savestack_ix;
3716 DIE("panic: do_split");
3718 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3719 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3721 if (pm->op_pmreplroot)
3722 ary = GvAVn((GV*)pm->op_pmreplroot);
3723 else if (gimme != G_ARRAY)
3727 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3731 for (i = AvFILL(ary); i >= 0; i--)
3732 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3736 /* temporarily switch stacks */
3737 SWITCHSTACK(curstack, ary);
3739 base = SP - stack_base;
3741 if (pm->op_pmflags & PMf_SKIPWHITE) {
3742 if (pm->op_pmflags & PMf_LOCALE) {
3743 while (isSPACE_LC(*s))
3751 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3753 multiline = pm->op_pmflags & PMf_MULTILINE;
3757 limit = maxiters + 2;
3758 if (pm->op_pmflags & PMf_WHITE) {
3761 while (m < strend &&
3762 !((pm->op_pmflags & PMf_LOCALE)
3763 ? isSPACE_LC(*m) : isSPACE(*m)))
3768 dstr = NEWSV(30, m-s);
3769 sv_setpvn(dstr, s, m-s);
3775 while (s < strend &&
3776 ((pm->op_pmflags & PMf_LOCALE)
3777 ? isSPACE_LC(*s) : isSPACE(*s)))
3781 else if (strEQ("^", rx->precomp)) {
3784 for (m = s; m < strend && *m != '\n'; m++) ;
3788 dstr = NEWSV(30, m-s);
3789 sv_setpvn(dstr, s, m-s);
3796 else if (pm->op_pmshort) {
3797 i = SvCUR(pm->op_pmshort);
3799 i = *SvPVX(pm->op_pmshort);
3802 for (m = s; m < strend && *m != i; m++) ;
3805 dstr = NEWSV(30, m-s);
3806 sv_setpvn(dstr, s, m-s);
3815 while (s < strend && --limit &&
3816 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3820 dstr = NEWSV(31, m-s);
3821 sv_setpvn(dstr, s, m-s);
3830 maxiters += (strend - s) * rx->nparens;
3831 while (s < strend && --limit &&
3832 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3834 TAINT_IF(rx->exec_tainted);
3836 && rx->subbase != orig) {
3841 strend = s + (strend - m);
3844 dstr = NEWSV(32, m-s);
3845 sv_setpvn(dstr, s, m-s);
3850 for (i = 1; i <= rx->nparens; i++) {
3854 dstr = NEWSV(33, m-s);
3855 sv_setpvn(dstr, s, m-s);
3858 dstr = NEWSV(33, 0);
3867 LEAVE_SCOPE(oldsave);
3868 iters = (SP - stack_base) - base;
3869 if (iters > maxiters)
3872 /* keep field after final delim? */
3873 if (s < strend || (iters && origlimit)) {
3874 dstr = NEWSV(34, strend-s);
3875 sv_setpvn(dstr, s, strend-s);
3881 else if (!origlimit) {
3882 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3886 SWITCHSTACK(ary, oldstack);
3887 if (gimme == G_ARRAY) {
3889 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3895 if (gimme == G_ARRAY)
3898 if (iters || !pm->op_pmreplroot) {