3 * Copyright (c) 1991-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "It's a big house this, and very peculiar. Always a bit more to discover,
12 * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise
19 * Types used in bitwise operations.
21 * Normally we'd just use IV and UV. However, some hardware and
22 * software combinations (e.g. Alpha and current OSF/1) don't have a
23 * floating-point type to use for NV that has adequate bits to fully
24 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
26 * It just so happens that "int" is the right size everywhere, at
32 static SV* refto _((SV* sv));
33 static void doencodes _((SV* sv, char* s, I32 len));
35 /* variations on pp_null */
40 if (GIMME != G_ARRAY) {
56 if (op->op_private & OPpLVAL_INTRO)
57 SAVECLEARSV(curpad[op->op_targ]);
59 if (op->op_flags & OPf_REF) {
63 if (GIMME == G_ARRAY) {
64 I32 maxarg = AvFILL((AV*)TARG) + 1;
66 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
70 SV* sv = sv_newmortal();
71 I32 maxarg = AvFILL((AV*)TARG) + 1;
82 if (op->op_private & OPpLVAL_INTRO)
83 SAVECLEARSV(curpad[op->op_targ]);
84 if (op->op_flags & OPf_REF)
86 if (GIMME == G_ARRAY) { /* array wanted */
87 RETURNOP(do_kv(ARGS));
90 SV* sv = sv_newmortal();
91 if (HvFILL((HV*)TARG)) {
92 sprintf(buf, "%d/%d", HvFILL((HV*)TARG), HvMAX((HV*)TARG)+1);
104 DIE("NOT IMPL LINE %d",__LINE__);
116 if (SvTYPE(sv) == SVt_PVIO) {
117 GV *gv = (GV*) sv_newmortal();
118 gv_init(gv, 0, "", 0, 0);
119 GvIOp(gv) = (IO *)sv;
122 } else if (SvTYPE(sv) != SVt_PVGV)
123 DIE("Not a GLOB reference");
126 if (SvTYPE(sv) != SVt_PVGV) {
129 if (SvGMAGICAL(sv)) {
135 if (op->op_flags & OPf_REF ||
136 op->op_private & HINT_STRICT_REFS)
137 DIE(no_usym, "a symbol");
141 if (op->op_private & HINT_STRICT_REFS)
142 DIE(no_symref, sym, "a symbol");
143 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
146 if (op->op_private & OPpLVAL_INTRO)
147 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
159 switch (SvTYPE(sv)) {
163 DIE("Not a SCALAR reference");
170 if (SvTYPE(gv) != SVt_PVGV) {
171 if (SvGMAGICAL(sv)) {
177 if (op->op_flags & OPf_REF ||
178 op->op_private & HINT_STRICT_REFS)
179 DIE(no_usym, "a SCALAR");
183 if (op->op_private & HINT_STRICT_REFS)
184 DIE(no_symref, sym, "a SCALAR");
185 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
189 if (op->op_flags & OPf_MOD) {
190 if (op->op_private & OPpLVAL_INTRO)
191 sv = save_scalar((GV*)TOPs);
192 else if (op->op_private & OPpDEREF)
203 SV *sv = AvARYLEN(av);
205 AvARYLEN(av) = sv = NEWSV(0,0);
206 sv_upgrade(sv, SVt_IV);
207 sv_magic(sv, (SV*)av, '#', Nullch, 0);
215 dSP; dTARGET; dPOPss;
217 if (op->op_flags & OPf_MOD) {
218 if (SvTYPE(TARG) < SVt_PVLV) {
219 sv_upgrade(TARG, SVt_PVLV);
220 sv_magic(TARG, Nullsv, '.', Nullch, 0);
225 PUSHs(TARG); /* no SvSETMAGIC */
231 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
232 mg = mg_find(sv, 'g');
233 if (mg && mg->mg_len >= 0) {
234 PUSHi(mg->mg_len + curcop->cop_arybase);
248 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
249 /* (But not in defined().) */
250 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
253 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
270 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
272 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
280 CV* cv = (CV*)curpad[op->op_targ];
282 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
298 if (GIMME != G_ARRAY) {
302 EXTEND_MORTAL(SP - MARK);
304 *MARK = refto(*MARK);
314 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
320 else if (SvPADTMP(sv))
324 (void)SvREFCNT_inc(sv);
327 sv_upgrade(rv, SVt_RV);
341 if (sv && SvGMAGICAL(sv))
344 if (!sv || !SvROK(sv))
348 pv = sv_reftype(sv,TRUE);
349 PUSHp(pv, strlen(pv));
359 stash = curcop->cop_stash;
361 stash = gv_stashsv(POPs, TRUE);
363 (void)sv_bless(TOPs, stash);
367 /* Pattern matching */
372 register unsigned char *s;
375 register I32 *sfirst;
380 s = (unsigned char*)(SvPV(sv, len));
382 if (sv == lastscream)
386 SvSCREAM_off(lastscream);
387 SvREFCNT_dec(lastscream);
389 lastscream = SvREFCNT_inc(sv);
395 if (pos > maxscream) {
397 maxscream = pos + 80;
398 New(301, screamfirst, 256, I32);
399 New(302, screamnext, maxscream, I32);
402 maxscream = pos + pos / 4;
403 Renew(screamnext, maxscream, I32);
407 sfirst = screamfirst;
410 if (!sfirst || !snext)
411 DIE("do_study: out of memory");
413 for (ch = 256; ch; --ch)
420 snext[pos] = sfirst[ch] - pos;
427 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
430 XPUSHs(sv_2mortal(newSViv((I32)retval)));
439 if (op->op_flags & OPf_STACKED)
445 TARG = sv_newmortal();
446 PUSHi(do_trans(sv, op));
450 /* Lvalue operators. */
472 SETi(do_chomp(TOPs));
479 register I32 count = 0;
482 count += do_chomp(POPs);
493 if (!sv || !SvANY(sv))
495 switch (SvTYPE(sv)) {
497 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
501 if (HvARRAY(sv) || SvRMAGICAL(sv))
505 if (CvROOT(sv) || CvXSUB(sv))
529 if (SvTHINKFIRST(sv)) {
536 switch (SvTYPE(sv)) {
551 sv_setsv(sv, &sv_undef);
555 if (SvPOK(sv) && SvLEN(sv)) {
558 SvPV_set(sv, Nullch);
571 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
572 SvIVX(TOPs) != IV_MIN)
575 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
586 sv_setsv(TARG, TOPs);
587 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
588 SvIVX(TOPs) != IV_MAX)
591 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
605 sv_setsv(TARG, TOPs);
606 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
607 SvIVX(TOPs) != IV_MIN)
610 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
619 /* Ordinary operators. */
623 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
626 SETn( pow( left, right) );
633 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
636 SETn( left * right );
643 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
648 DIE("Illegal division by zero");
650 /* insure that 20./5. == 4. */
653 if ((double)I_V(left) == left &&
654 (double)I_V(right) == right &&
655 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
658 value = left / right;
662 value = left / right;
671 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
677 DIE("Illegal modulus zero");
679 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
680 register IV left = SvIVX(TOPs);
682 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
684 SETi( left % right );
687 register double left = USE_LEFT(TOPs) ? SvNV(TOPs) : 0.0;
689 SETu( (right - (U_V(-left) - 1) % right) - 1 );
691 SETu( U_V(left) % right );
699 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
701 register I32 count = POPi;
702 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
704 I32 items = SP - MARK;
716 repeatcpy((char*)(MARK + items), (char*)MARK,
717 items * sizeof(SV*), count - 1);
723 else { /* Note: mark already snarfed by pp_list */
728 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
729 if (SvREADONLY(tmpstr) && curcop != &compiling)
730 DIE("Can't x= to readonly value");
734 if (USE_LEFT(tmpstr) || SvTYPE(tmpstr) > SVt_PVMG) {
735 SvSetSV(TARG, tmpstr);
736 SvPV_force(TARG, len);
741 SvGROW(TARG, (count * len) + 1);
742 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
743 SvCUR(TARG) *= count;
747 (void)SvPOK_only(TARG);
750 sv_setsv(TARG, &sv_no);
759 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
762 SETn( left - right );
769 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
772 if (op->op_private & HINT_INTEGER) {
786 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
789 if (op->op_private & HINT_INTEGER) {
803 dSP; tryAMAGICbinSET(lt,0);
806 SETs((TOPn < value) ? &sv_yes : &sv_no);
813 dSP; tryAMAGICbinSET(gt,0);
816 SETs((TOPn > value) ? &sv_yes : &sv_no);
823 dSP; tryAMAGICbinSET(le,0);
826 SETs((TOPn <= value) ? &sv_yes : &sv_no);
833 dSP; tryAMAGICbinSET(ge,0);
836 SETs((TOPn >= value) ? &sv_yes : &sv_no);
843 dSP; tryAMAGICbinSET(ne,0);
846 SETs((TOPn != value) ? &sv_yes : &sv_no);
853 dSP; dTARGET; tryAMAGICbin(ncmp,0);
860 else if (left < right)
871 dSP; tryAMAGICbinSET(slt,0);
874 int cmp = ((op->op_private & OPpLOCALE)
875 ? sv_cmp_locale(left, right)
876 : sv_cmp(left, right));
877 SETs( cmp < 0 ? &sv_yes : &sv_no );
884 dSP; tryAMAGICbinSET(sgt,0);
887 int cmp = ((op->op_private & OPpLOCALE)
888 ? sv_cmp_locale(left, right)
889 : sv_cmp(left, right));
890 SETs( cmp > 0 ? &sv_yes : &sv_no );
897 dSP; tryAMAGICbinSET(sle,0);
900 int cmp = ((op->op_private & OPpLOCALE)
901 ? sv_cmp_locale(left, right)
902 : sv_cmp(left, right));
903 SETs( cmp <= 0 ? &sv_yes : &sv_no );
910 dSP; tryAMAGICbinSET(sge,0);
913 int cmp = ((op->op_private & OPpLOCALE)
914 ? sv_cmp_locale(left, right)
915 : sv_cmp(left, right));
916 SETs( cmp >= 0 ? &sv_yes : &sv_no );
923 dSP; tryAMAGICbinSET(seq,0);
926 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
933 dSP; tryAMAGICbinSET(sne,0);
936 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
943 dSP; dTARGET; tryAMAGICbin(scmp,0);
946 int cmp = ((op->op_private & OPpLOCALE)
947 ? sv_cmp_locale(left, right)
948 : sv_cmp(left, right));
956 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
959 if (SvNIOKp(left) || SvNIOKp(right)) {
960 if (op->op_private & HINT_INTEGER) {
961 IBW value = SvIV(left) & SvIV(right);
965 UBW value = SvUV(left) & SvUV(right);
970 do_vop(op->op_type, TARG, left, right);
979 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
982 if (SvNIOKp(left) || SvNIOKp(right)) {
983 if (op->op_private & HINT_INTEGER) {
984 IBW value = SvIV(left) ^ SvIV(right);
988 UBW value = SvUV(left) ^ SvUV(right);
993 do_vop(op->op_type, TARG, left, right);
1002 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1005 if (SvNIOKp(left) || SvNIOKp(right)) {
1006 if (op->op_private & HINT_INTEGER) {
1007 IBW value = SvIV(left) | SvIV(right);
1011 UBW value = SvUV(left) | SvUV(right);
1016 do_vop(op->op_type, TARG, left, right);
1025 dSP; dTARGET; tryAMAGICun(neg);
1030 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1032 else if (SvNIOKp(sv))
1034 else if (SvPOKp(sv)) {
1036 char *s = SvPV(sv, len);
1037 if (isIDFIRST(*s)) {
1038 sv_setpvn(TARG, "-", 1);
1041 else if (*s == '+' || *s == '-') {
1043 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1046 sv_setnv(TARG, -SvNV(sv));
1058 dSP; tryAMAGICunSET(not);
1059 #endif /* OVERLOAD */
1060 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1066 dSP; dTARGET; tryAMAGICun(compl);
1070 if (op->op_private & HINT_INTEGER) {
1071 IBW value = ~SvIV(sv);
1075 UBW value = ~SvUV(sv);
1080 register char *tmps;
1081 register long *tmpl;
1086 tmps = SvPV_force(TARG, len);
1089 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1092 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1096 for ( ; anum > 0; anum--, tmps++)
1105 /* integer versions of some of the above */
1109 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1112 SETi( left * right );
1119 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1123 DIE("Illegal division by zero");
1124 value = POPi / value;
1132 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1135 SETi( left % right );
1142 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1145 SETi( left + right );
1152 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1155 SETi( left - right );
1162 dSP; tryAMAGICbinSET(lt,0);
1165 SETs((left < right) ? &sv_yes : &sv_no);
1172 dSP; tryAMAGICbinSET(gt,0);
1175 SETs((left > right) ? &sv_yes : &sv_no);
1182 dSP; tryAMAGICbinSET(le,0);
1185 SETs((left <= right) ? &sv_yes : &sv_no);
1192 dSP; tryAMAGICbinSET(ge,0);
1195 SETs((left >= right) ? &sv_yes : &sv_no);
1202 dSP; tryAMAGICbinSET(eq,0);
1205 SETs((left == right) ? &sv_yes : &sv_no);
1212 dSP; tryAMAGICbinSET(ne,0);
1215 SETs((left != right) ? &sv_yes : &sv_no);
1222 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1229 else if (left < right)
1240 dSP; dTARGET; tryAMAGICun(neg);
1245 /* High falutin' math. */
1249 dSP; dTARGET; tryAMAGICbin(atan2,0);
1252 SETn(atan2(left, right));
1259 dSP; dTARGET; tryAMAGICun(sin);
1271 dSP; dTARGET; tryAMAGICun(cos);
1292 value = rand() * value / 2147483648.0;
1295 value = rand() * value / 65536.0;
1298 value = rand() * value / 32768.0;
1300 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1315 # include <starlet.h>
1316 unsigned int when[2];
1317 _ckvmssts(sys$gettim(when));
1318 anum = when[0] ^ when[1];
1320 # ifdef HAS_GETTIMEOFDAY
1321 struct timeval when;
1322 gettimeofday(&when,(struct timezone *) 0);
1323 anum = when.tv_sec ^ when.tv_usec;
1330 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1331 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1332 /* What is a good hashing algorithm here? */
1333 anum ^= ( ( 269 * (U32)getpid())
1334 ^ (26107 * (U32)&when)
1335 ^ (73819 * (U32)stack_sp));
1347 dSP; dTARGET; tryAMAGICun(exp);
1359 dSP; dTARGET; tryAMAGICun(log);
1364 SET_NUMERIC_STANDARD();
1365 DIE("Can't take log of %g", value);
1375 dSP; dTARGET; tryAMAGICun(sqrt);
1380 SET_NUMERIC_STANDARD();
1381 DIE("Can't take sqrt of %g", value);
1383 value = sqrt(value);
1395 (void)modf(value, &value);
1397 (void)modf(-value, &value);
1406 dSP; dTARGET; tryAMAGICun(abs);
1426 XPUSHu(scan_hex(tmps, 99, &argtype));
1438 while (*tmps && isSPACE(*tmps))
1443 value = scan_hex(++tmps, 99, &argtype);
1445 value = scan_oct(tmps, 99, &argtype);
1455 SETi( sv_len(TOPs) );
1467 I32 lvalue = op->op_flags & OPf_MOD;
1469 I32 arybase = curcop->cop_arybase;
1473 pos = POPi - arybase;
1475 tmps = SvPV(sv, curlen);
1477 pos += curlen + arybase;
1478 if (pos < 0 || pos > curlen) {
1479 if (dowarn || lvalue)
1480 warn("substr outside of string");
1487 len += curlen - pos;
1492 rem = curlen - pos; /* rem=how many bytes left*/
1495 sv_setpvn(TARG, tmps, rem);
1496 if (lvalue) { /* it's an lvalue! */
1497 if (!SvGMAGICAL(sv)) {
1501 warn("Attempt to use reference as lvalue in substr");
1503 if (SvOK(sv)) /* is it defined ? */
1504 (void)SvPOK_only(sv);
1506 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1509 if (SvTYPE(TARG) < SVt_PVLV) {
1510 sv_upgrade(TARG, SVt_PVLV);
1511 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1516 LvTARGOFF(TARG) = pos;
1517 LvTARGLEN(TARG) = rem;
1520 PUSHs(TARG); /* avoid SvSETMAGIC here */
1527 register I32 size = POPi;
1528 register I32 offset = POPi;
1529 register SV *src = POPs;
1530 I32 lvalue = op->op_flags & OPf_MOD;
1532 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1533 unsigned long retnum;
1536 offset *= size; /* turn into bit offset */
1537 len = (offset + size + 7) / 8;
1538 if (offset < 0 || size < 1)
1541 if (lvalue) { /* it's an lvalue! */
1542 if (SvTYPE(TARG) < SVt_PVLV) {
1543 sv_upgrade(TARG, SVt_PVLV);
1544 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1549 LvTARGOFF(TARG) = offset;
1550 LvTARGLEN(TARG) = size;
1558 if (offset >= srclen)
1561 retnum = (unsigned long) s[offset] << 8;
1563 else if (size == 32) {
1564 if (offset >= srclen)
1566 else if (offset + 1 >= srclen)
1567 retnum = (unsigned long) s[offset] << 24;
1568 else if (offset + 2 >= srclen)
1569 retnum = ((unsigned long) s[offset] << 24) +
1570 ((unsigned long) s[offset + 1] << 16);
1572 retnum = ((unsigned long) s[offset] << 24) +
1573 ((unsigned long) s[offset + 1] << 16) +
1574 (s[offset + 2] << 8);
1579 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1584 else if (size == 16)
1585 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1586 else if (size == 32)
1587 retnum = ((unsigned long) s[offset] << 24) +
1588 ((unsigned long) s[offset + 1] << 16) +
1589 (s[offset + 2] << 8) + s[offset+3];
1593 sv_setiv(TARG, (I32)retnum);
1608 I32 arybase = curcop->cop_arybase;
1613 offset = POPi - arybase;
1616 tmps = SvPV(big, biglen);
1619 else if (offset > biglen)
1621 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1622 (unsigned char*)tmps + biglen, little)))
1623 retval = -1 + arybase;
1625 retval = tmps2 - tmps + arybase;
1642 I32 arybase = curcop->cop_arybase;
1648 tmps2 = SvPV(little, llen);
1649 tmps = SvPV(big, blen);
1653 offset = SvIV(offstr) - arybase + llen;
1656 else if (offset > blen)
1658 if (!(tmps2 = rninstr(tmps, tmps + offset,
1659 tmps2, tmps2 + llen)))
1660 retval = -1 + arybase;
1662 retval = tmps2 - tmps + arybase;
1669 dSP; dMARK; dORIGMARK; dTARGET;
1670 #ifdef USE_LOCALE_NUMERIC
1671 if (op->op_private & OPpLOCALE)
1672 SET_NUMERIC_LOCAL();
1674 SET_NUMERIC_STANDARD();
1676 do_sprintf(TARG, SP-MARK, MARK+1);
1677 TAINT_IF(SvTAINTED(TARG));
1691 value = (I32) (*tmps & 255);
1696 value = (I32) (anum & 255);
1707 (void)SvUPGRADE(TARG,SVt_PV);
1713 (void)SvPOK_only(TARG);
1720 dSP; dTARGET; dPOPTOPssrl;
1722 char *tmps = SvPV(left, na);
1724 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1726 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1730 "The crypt() function is unimplemented due to excessive paranoia.");
1742 if (!SvPADTMP(sv)) {
1748 s = SvPV_force(sv, na);
1750 if (op->op_private & OPpLOCALE) {
1753 *s = toUPPER_LC(*s);
1768 if (!SvPADTMP(sv)) {
1774 s = SvPV_force(sv, na);
1776 if (op->op_private & OPpLOCALE) {
1779 *s = toLOWER_LC(*s);
1796 if (!SvPADTMP(sv)) {
1803 s = SvPV_force(sv, len);
1805 register char *send = s + len;
1807 if (op->op_private & OPpLOCALE) {
1810 for (; s < send; s++)
1811 *s = toUPPER_LC(*s);
1814 for (; s < send; s++)
1828 if (!SvPADTMP(sv)) {
1835 s = SvPV_force(sv, len);
1837 register char *send = s + len;
1839 if (op->op_private & OPpLOCALE) {
1842 for (; s < send; s++)
1843 *s = toLOWER_LC(*s);
1846 for (; s < send; s++)
1858 register char *s = SvPV(sv,len);
1862 (void)SvUPGRADE(TARG, SVt_PV);
1863 SvGROW(TARG, (len * 2) + 1);
1871 SvCUR_set(TARG, d - SvPVX(TARG));
1872 (void)SvPOK_only(TARG);
1875 sv_setpvn(TARG, s, len);
1884 dSP; dMARK; dORIGMARK;
1886 register AV* av = (AV*)POPs;
1887 register I32 lval = op->op_flags & OPf_MOD;
1888 I32 arybase = curcop->cop_arybase;
1891 if (SvTYPE(av) == SVt_PVAV) {
1892 if (lval && op->op_private & OPpLVAL_INTRO) {
1894 for (svp = mark + 1; svp <= sp; svp++) {
1899 if (max > AvMAX(av))
1902 while (++MARK <= SP) {
1903 elem = SvIVx(*MARK);
1907 svp = av_fetch(av, elem, lval);
1909 if (!svp || *svp == &sv_undef)
1910 DIE(no_aelem, elem);
1911 if (op->op_private & OPpLVAL_INTRO)
1914 *MARK = svp ? *svp : &sv_undef;
1917 if (GIMME != G_ARRAY) {
1925 /* Associative arrays. */
1930 HV *hash = (HV*)POPs;
1934 entry = hv_iternext(hash); /* might clobber stack_sp */
1939 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1940 if (GIMME == G_ARRAY) {
1942 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1947 else if (GIMME == G_SCALAR)
1969 if (op->op_private & OPpSLICE) {
1972 if (SvTYPE(hv) != SVt_PVHV)
1973 DIE("Not a HASH reference");
1974 while (++MARK <= SP) {
1975 sv = hv_delete_ent(hv, *MARK,
1976 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
1977 *MARK = sv ? sv : &sv_undef;
1979 if (GIMME != G_ARRAY) {
1988 if (SvTYPE(hv) != SVt_PVHV)
1989 DIE("Not a HASH reference");
1990 sv = hv_delete_ent(hv, keysv,
1991 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2005 if (SvTYPE(hv) != SVt_PVHV) {
2006 DIE("Not a HASH reference");
2008 if (hv_exists_ent(hv, tmpsv, 0))
2015 dSP; dMARK; dORIGMARK;
2017 register HV *hv = (HV*)POPs;
2018 register I32 lval = op->op_flags & OPf_MOD;
2020 if (SvTYPE(hv) == SVt_PVHV) {
2021 while (++MARK <= SP) {
2024 he = hv_fetch_ent(hv, keysv, lval, 0);
2026 if (!he || HeVAL(he) == &sv_undef)
2027 DIE(no_helem, SvPV(keysv, na));
2028 if (op->op_private & OPpLVAL_INTRO)
2029 save_svref(&HeVAL(he));
2031 *MARK = he ? HeVAL(he) : &sv_undef;
2034 if (GIMME != G_ARRAY) {
2042 /* List operators. */
2047 if (GIMME != G_ARRAY) {
2049 *MARK = *SP; /* unwanted list, return last item */
2060 SV **lastrelem = stack_sp;
2061 SV **lastlelem = stack_base + POPMARK;
2062 SV **firstlelem = stack_base + POPMARK + 1;
2063 register SV **firstrelem = lastlelem + 1;
2064 I32 arybase = curcop->cop_arybase;
2065 I32 lval = op->op_flags & OPf_MOD;
2066 I32 is_something_there = lval;
2068 register I32 max = lastrelem - lastlelem;
2069 register SV **lelem;
2072 if (GIMME != G_ARRAY) {
2073 ix = SvIVx(*lastlelem);
2078 if (ix < 0 || ix >= max)
2079 *firstlelem = &sv_undef;
2081 *firstlelem = firstrelem[ix];
2087 SP = firstlelem - 1;
2091 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2097 else if (!(*lelem = firstrelem[ix]))
2102 if (ix >= max || !(*lelem = firstrelem[ix]))
2105 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2106 is_something_there = TRUE;
2108 if (is_something_there)
2111 SP = firstlelem - 1;
2118 I32 items = SP - MARK;
2120 XPUSHs((SV*)sv_2mortal((SV*)av_make(items, MARK+1)));
2126 dSP; dMARK; dORIGMARK;
2127 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2131 SV *val = NEWSV(46, 0);
2133 sv_setsv(val, *++MARK);
2135 warn("Odd number of elements in hash list");
2136 (void)hv_store_ent(hv,key,val,0);
2145 dSP; dMARK; dORIGMARK;
2146 register AV *ary = (AV*)*++MARK;
2150 register I32 offset;
2151 register I32 length;
2160 offset = SvIVx(*MARK);
2162 offset += AvFILL(ary) + 1;
2164 offset -= curcop->cop_arybase;
2166 length = SvIVx(*MARK++);
2171 length = AvMAX(ary) + 1; /* close enough to infinity */
2175 length = AvMAX(ary) + 1;
2183 if (offset > AvFILL(ary) + 1)
2184 offset = AvFILL(ary) + 1;
2185 after = AvFILL(ary) + 1 - (offset + length);
2186 if (after < 0) { /* not that much array */
2187 length += after; /* offset+length now in array */
2193 /* At this point, MARK .. SP-1 is our new LIST */
2196 diff = newlen - length;
2198 if (diff < 0) { /* shrinking the area */
2200 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2201 Copy(MARK, tmparyval, newlen, SV*);
2204 MARK = ORIGMARK + 1;
2205 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2206 MEXTEND(MARK, length);
2207 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2209 EXTEND_MORTAL(length);
2210 for (i = length, dst = MARK; i; i--) {
2211 if (!SvIMMORTAL(*dst))
2212 sv_2mortal(*dst); /* free them eventualy */
2219 *MARK = AvARRAY(ary)[offset+length-1];
2221 if (!SvIMMORTAL(*MARK))
2223 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2224 SvREFCNT_dec(*dst++); /* free them now */
2227 AvFILL(ary) += diff;
2229 /* pull up or down? */
2231 if (offset < after) { /* easier to pull up */
2232 if (offset) { /* esp. if nothing to pull */
2233 src = &AvARRAY(ary)[offset-1];
2234 dst = src - diff; /* diff is negative */
2235 for (i = offset; i > 0; i--) /* can't trust Copy */
2239 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2243 if (after) { /* anything to pull down? */
2244 src = AvARRAY(ary) + offset + length;
2245 dst = src + diff; /* diff is negative */
2246 Move(src, dst, after, SV*);
2248 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2249 /* avoid later double free */
2253 dst[--i] = &sv_undef;
2256 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2258 *dst = NEWSV(46, 0);
2259 sv_setsv(*dst++, *src++);
2261 Safefree(tmparyval);
2264 else { /* no, expanding (or same) */
2266 New(452, tmparyval, length, SV*); /* so remember deletion */
2267 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2270 if (diff > 0) { /* expanding */
2272 /* push up or down? */
2274 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2278 Move(src, dst, offset, SV*);
2280 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2282 AvFILL(ary) += diff;
2285 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2286 av_extend(ary, AvFILL(ary) + diff);
2287 AvFILL(ary) += diff;
2290 dst = AvARRAY(ary) + AvFILL(ary);
2292 for (i = after; i; i--) {
2299 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2300 *dst = NEWSV(46, 0);
2301 sv_setsv(*dst++, *src++);
2303 MARK = ORIGMARK + 1;
2304 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2306 Copy(tmparyval, MARK, length, SV*);
2308 EXTEND_MORTAL(length);
2309 for (i = length, dst = MARK; i; i--) {
2310 if (!SvIMMORTAL(*dst))
2311 sv_2mortal(*dst); /* free them eventualy */
2315 Safefree(tmparyval);
2319 else if (length--) {
2320 *MARK = tmparyval[length];
2322 if (!SvIMMORTAL(*MARK))
2324 while (length-- > 0)
2325 SvREFCNT_dec(tmparyval[length]);
2327 Safefree(tmparyval);
2338 dSP; dMARK; dORIGMARK; dTARGET;
2339 register AV *ary = (AV*)*++MARK;
2340 register SV *sv = &sv_undef;
2342 for (++MARK; MARK <= SP; MARK++) {
2345 sv_setsv(sv, *MARK);
2349 PUSHi( AvFILL(ary) + 1 );
2357 SV *sv = av_pop(av);
2358 if (!SvIMMORTAL(sv) && AvREAL(av))
2359 (void)sv_2mortal(sv);
2368 SV *sv = av_shift(av);
2372 if (!SvIMMORTAL(sv) && AvREAL(av))
2373 (void)sv_2mortal(sv);
2380 dSP; dMARK; dORIGMARK; dTARGET;
2381 register AV *ary = (AV*)*++MARK;
2385 av_unshift(ary, SP - MARK);
2388 sv_setsv(sv, *++MARK);
2389 (void)av_store(ary, i++, sv);
2393 PUSHi( AvFILL(ary) + 1 );
2403 if (GIMME == G_ARRAY) {
2414 register char *down;
2420 do_join(TARG, &sv_no, MARK, SP);
2422 sv_setsv(TARG, *SP);
2423 up = SvPV_force(TARG, len);
2425 down = SvPVX(TARG) + len - 1;
2431 (void)SvPOK_only(TARG);
2445 char *s = SvPV(sv, len);
2449 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2450 SV *new = newSVpv("0000000000", 10);
2453 SvREFCNT_dec(sv); /* free old sv */
2458 while (!*t) /* trailing '\0'? */
2461 i = ((*t - '0') << 7) + m;
2462 *(t--) = '0' + (i % 10);
2468 /* Explosives and implosives. */
2478 register char *pat = SvPV(left, llen);
2479 register char *s = SvPV(right, rlen);
2480 char *strend = s + rlen;
2482 register char *patend = pat + llen;
2487 /* These must not be in registers: */
2498 unsigned Quad_t auquad;
2504 register U32 culong;
2506 static char* bitcount = 0;
2508 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2510 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2511 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2513 while (isDIGIT(*patend) || *patend == '*')
2519 while (pat < patend) {
2524 else if (*pat == '*') {
2525 len = strend - strbeg; /* long enough */
2528 else if (isDIGIT(*pat)) {
2530 while (isDIGIT(*pat))
2531 len = (len * 10) + (*pat++ - '0');
2534 len = (datumtype != '@');
2539 if (len == 1 && pat[-1] != '1')
2548 if (len > strend - strbeg)
2549 DIE("@ outside of string");
2553 if (len > s - strbeg)
2554 DIE("X outside of string");
2558 if (len > strend - s)
2559 DIE("x outside of string");
2564 if (len > strend - s)
2567 goto uchar_checksum;
2568 sv = NEWSV(35, len);
2569 sv_setpvn(sv, s, len);
2571 if (datumtype == 'A') {
2572 aptr = s; /* borrow register */
2573 s = SvPVX(sv) + len - 1;
2574 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2577 SvCUR_set(sv, s - SvPVX(sv));
2578 s = aptr; /* unborrow register */
2580 XPUSHs(sv_2mortal(sv));
2584 if (pat[-1] == '*' || len > (strend - s) * 8)
2585 len = (strend - s) * 8;
2588 Newz(601, bitcount, 256, char);
2589 for (bits = 1; bits < 256; bits++) {
2590 if (bits & 1) bitcount[bits]++;
2591 if (bits & 2) bitcount[bits]++;
2592 if (bits & 4) bitcount[bits]++;
2593 if (bits & 8) bitcount[bits]++;
2594 if (bits & 16) bitcount[bits]++;
2595 if (bits & 32) bitcount[bits]++;
2596 if (bits & 64) bitcount[bits]++;
2597 if (bits & 128) bitcount[bits]++;
2601 culong += bitcount[*(unsigned char*)s++];
2606 if (datumtype == 'b') {
2608 if (bits & 1) culong++;
2614 if (bits & 128) culong++;
2621 sv = NEWSV(35, len + 1);
2624 aptr = pat; /* borrow register */
2626 if (datumtype == 'b') {
2628 for (len = 0; len < aint; len++) {
2629 if (len & 7) /*SUPPRESS 595*/
2633 *pat++ = '0' + (bits & 1);
2638 for (len = 0; len < aint; len++) {
2643 *pat++ = '0' + ((bits & 128) != 0);
2647 pat = aptr; /* unborrow register */
2648 XPUSHs(sv_2mortal(sv));
2652 if (pat[-1] == '*' || len > (strend - s) * 2)
2653 len = (strend - s) * 2;
2654 sv = NEWSV(35, len + 1);
2657 aptr = pat; /* borrow register */
2659 if (datumtype == 'h') {
2661 for (len = 0; len < aint; len++) {
2666 *pat++ = hexdigit[bits & 15];
2671 for (len = 0; len < aint; len++) {
2676 *pat++ = hexdigit[(bits >> 4) & 15];
2680 pat = aptr; /* unborrow register */
2681 XPUSHs(sv_2mortal(sv));
2684 if (len > strend - s)
2689 if (aint >= 128) /* fake up signed chars */
2699 if (aint >= 128) /* fake up signed chars */
2702 sv_setiv(sv, (I32)aint);
2703 PUSHs(sv_2mortal(sv));
2708 if (len > strend - s)
2723 sv_setiv(sv, (I32)auint);
2724 PUSHs(sv_2mortal(sv));
2729 along = (strend - s) / sizeof(I16);
2734 Copy(s, &ashort, 1, I16);
2743 Copy(s, &ashort, 1, I16);
2746 sv_setiv(sv, (I32)ashort);
2747 PUSHs(sv_2mortal(sv));
2754 along = (strend - s) / sizeof(U16);
2759 Copy(s, &aushort, 1, U16);
2762 if (datumtype == 'n')
2763 aushort = ntohs(aushort);
2766 if (datumtype == 'v')
2767 aushort = vtohs(aushort);
2776 Copy(s, &aushort, 1, U16);
2780 if (datumtype == 'n')
2781 aushort = ntohs(aushort);
2784 if (datumtype == 'v')
2785 aushort = vtohs(aushort);
2787 sv_setiv(sv, (I32)aushort);
2788 PUSHs(sv_2mortal(sv));
2793 along = (strend - s) / sizeof(int);
2798 Copy(s, &aint, 1, int);
2801 cdouble += (double)aint;
2810 Copy(s, &aint, 1, int);
2813 sv_setiv(sv, (I32)aint);
2814 PUSHs(sv_2mortal(sv));
2819 along = (strend - s) / sizeof(unsigned int);
2824 Copy(s, &auint, 1, unsigned int);
2825 s += sizeof(unsigned int);
2827 cdouble += (double)auint;
2836 Copy(s, &auint, 1, unsigned int);
2837 s += sizeof(unsigned int);
2839 if (auint <= I32_MAX)
2840 sv_setiv(sv, (I32)auint);
2842 sv_setnv(sv, (double)auint);
2843 PUSHs(sv_2mortal(sv));
2848 along = (strend - s) / sizeof(I32);
2853 Copy(s, &along, 1, I32);
2856 cdouble += (double)along;
2865 Copy(s, &along, 1, I32);
2868 sv_setiv(sv, (I32)along);
2869 PUSHs(sv_2mortal(sv));
2876 along = (strend - s) / sizeof(U32);
2881 Copy(s, &aulong, 1, U32);
2884 if (datumtype == 'N')
2885 aulong = ntohl(aulong);
2888 if (datumtype == 'V')
2889 aulong = vtohl(aulong);
2892 cdouble += (double)aulong;
2901 Copy(s, &aulong, 1, U32);
2905 if (datumtype == 'N')
2906 aulong = ntohl(aulong);
2909 if (datumtype == 'V')
2910 aulong = vtohl(aulong);
2912 sv_setnv(sv, (double)aulong);
2913 PUSHs(sv_2mortal(sv));
2918 along = (strend - s) / sizeof(char*);
2924 if (sizeof(char*) > strend - s)
2927 Copy(s, &aptr, 1, char*);
2933 PUSHs(sv_2mortal(sv));
2943 while ((len > 0) && (s < strend)) {
2944 auv = (auv << 7) | (*s & 0x7f);
2945 if (!(*s++ & 0x80)) {
2949 PUSHs(sv_2mortal(sv));
2953 else if (++bytes >= sizeof(UV)) { /* promote to string */
2954 char decn[sizeof(UV) * 3 + 1];
2957 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2958 sv = newSVpv(decn, 0);
2959 while (s < strend) {
2960 sv = mul128(sv, *s & 0x7f);
2961 if (!(*s++ & 0x80)) {
2970 PUSHs(sv_2mortal(sv));
2975 if ((s >= strend) && bytes)
2976 croak("Unterminated compressed integer");
2981 if (sizeof(char*) > strend - s)
2984 Copy(s, &aptr, 1, char*);
2989 sv_setpvn(sv, aptr, len);
2990 PUSHs(sv_2mortal(sv));
2997 if (s + sizeof(Quad_t) > strend)
3000 Copy(s, &aquad, 1, Quad_t);
3001 s += sizeof(Quad_t);
3004 sv_setiv(sv, (IV)aquad);
3005 PUSHs(sv_2mortal(sv));
3012 if (s + sizeof(unsigned Quad_t) > strend)
3015 Copy(s, &auquad, 1, unsigned Quad_t);
3016 s += sizeof(unsigned Quad_t);
3019 sv_setiv(sv, (IV)auquad);
3020 PUSHs(sv_2mortal(sv));
3024 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3027 along = (strend - s) / sizeof(float);
3032 Copy(s, &afloat, 1, float);
3041 Copy(s, &afloat, 1, float);
3044 sv_setnv(sv, (double)afloat);
3045 PUSHs(sv_2mortal(sv));
3051 along = (strend - s) / sizeof(double);
3056 Copy(s, &adouble, 1, double);
3057 s += sizeof(double);
3065 Copy(s, &adouble, 1, double);
3066 s += sizeof(double);
3068 sv_setnv(sv, (double)adouble);
3069 PUSHs(sv_2mortal(sv));
3074 along = (strend - s) * 3 / 4;
3075 sv = NEWSV(42, along);
3078 while (s < strend && *s > ' ' && *s < 'a') {
3083 len = (*s++ - ' ') & 077;
3085 if (s < strend && *s >= ' ')
3086 a = (*s++ - ' ') & 077;
3089 if (s < strend && *s >= ' ')
3090 b = (*s++ - ' ') & 077;
3093 if (s < strend && *s >= ' ')
3094 c = (*s++ - ' ') & 077;
3097 if (s < strend && *s >= ' ')
3098 d = (*s++ - ' ') & 077;
3101 hunk[0] = a << 2 | b >> 4;
3102 hunk[1] = b << 4 | c >> 2;
3103 hunk[2] = c << 6 | d;
3104 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3109 else if (s[1] == '\n') /* possible checksum byte */
3112 XPUSHs(sv_2mortal(sv));
3117 if (strchr("fFdD", datumtype) ||
3118 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3122 while (checksum >= 16) {
3126 while (checksum >= 4) {
3132 along = (1 << checksum) - 1;
3133 while (cdouble < 0.0)
3135 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3136 sv_setnv(sv, cdouble);
3139 if (checksum < 32) {
3140 along = (1 << checksum) - 1;
3141 culong &= (U32)along;
3143 sv_setnv(sv, (double)culong);
3145 XPUSHs(sv_2mortal(sv));
3149 if (sp == oldsp && GIMME != G_ARRAY)
3155 doencodes(sv, s, len)
3163 sv_catpvn(sv, hunk, 1);
3166 hunk[0] = ' ' + (077 & (*s >> 2));
3167 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3168 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3169 hunk[3] = ' ' + (077 & (s[2] & 077));
3170 sv_catpvn(sv, hunk, 4);
3174 for (s = SvPVX(sv); *s; s++) {
3178 sv_catpvn(sv, "\n", 1);
3186 SV *result = newSVpv("", l);
3187 char *result_c = SvPV(result, na); /* convenience */
3188 char *out = result_c;
3198 SvREFCNT_dec(result);
3221 SvREFCNT_dec(result);
3227 SvCUR_set(result, out - result_c);
3233 SV *pnum; /* must be '\0' terminated */
3237 char *s = SvPV(pnum, len);
3246 i = m * 10 + (*t - '0');
3248 r = (i >> 7); /* r < 10 */
3255 SvCUR_set(pnum, (STRLEN) (t - s));
3262 dSP; dMARK; dORIGMARK; dTARGET;
3263 register SV *cat = TARG;
3266 register char *pat = SvPVx(*++MARK, fromlen);
3267 register char *patend = pat + fromlen;
3272 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3273 static char *space10 = " ";
3275 /* These must not be in registers: */
3284 unsigned Quad_t auquad;
3292 sv_setpvn(cat, "", 0);
3293 while (pat < patend) {
3294 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3297 len = strchr("@Xxu", datumtype) ? 0 : items;
3300 else if (isDIGIT(*pat)) {
3302 while (isDIGIT(*pat))
3303 len = (len * 10) + (*pat++ - '0');
3311 DIE("%% may only be used in unpack");
3322 if (SvCUR(cat) < len)
3323 DIE("X outside of string");
3330 sv_catpvn(cat, null10, 10);
3333 sv_catpvn(cat, null10, len);
3338 aptr = SvPV(fromstr, fromlen);
3342 sv_catpvn(cat, aptr, len);
3344 sv_catpvn(cat, aptr, fromlen);
3346 if (datumtype == 'A') {
3348 sv_catpvn(cat, space10, 10);
3351 sv_catpvn(cat, space10, len);
3355 sv_catpvn(cat, null10, 10);
3358 sv_catpvn(cat, null10, len);
3365 char *savepat = pat;
3370 aptr = SvPV(fromstr, fromlen);
3375 SvCUR(cat) += (len+7)/8;
3376 SvGROW(cat, SvCUR(cat) + 1);
3377 aptr = SvPVX(cat) + aint;
3382 if (datumtype == 'B') {
3383 for (len = 0; len++ < aint;) {
3384 items |= *pat++ & 1;
3388 *aptr++ = items & 0xff;
3394 for (len = 0; len++ < aint;) {
3400 *aptr++ = items & 0xff;
3406 if (datumtype == 'B')
3407 items <<= 7 - (aint & 7);
3409 items >>= 7 - (aint & 7);
3410 *aptr++ = items & 0xff;
3412 pat = SvPVX(cat) + SvCUR(cat);
3423 char *savepat = pat;
3428 aptr = SvPV(fromstr, fromlen);
3433 SvCUR(cat) += (len+1)/2;
3434 SvGROW(cat, SvCUR(cat) + 1);
3435 aptr = SvPVX(cat) + aint;
3440 if (datumtype == 'H') {
3441 for (len = 0; len++ < aint;) {
3443 items |= ((*pat++ & 15) + 9) & 15;
3445 items |= *pat++ & 15;
3449 *aptr++ = items & 0xff;
3455 for (len = 0; len++ < aint;) {
3457 items |= (((*pat++ & 15) + 9) & 15) << 4;
3459 items |= (*pat++ & 15) << 4;
3463 *aptr++ = items & 0xff;
3469 *aptr++ = items & 0xff;
3470 pat = SvPVX(cat) + SvCUR(cat);
3482 aint = SvIV(fromstr);
3484 sv_catpvn(cat, &achar, sizeof(char));
3487 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3492 afloat = (float)SvNV(fromstr);
3493 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3500 adouble = (double)SvNV(fromstr);
3501 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3507 ashort = (I16)SvIV(fromstr);
3509 ashort = htons(ashort);
3511 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3517 ashort = (I16)SvIV(fromstr);
3519 ashort = htovs(ashort);
3521 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3528 ashort = (I16)SvIV(fromstr);
3529 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3535 auint = U_I(SvNV(fromstr));
3536 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3542 adouble = floor(SvNV(fromstr));
3545 croak("Cannot compress negative numbers");
3547 if (adouble <= UV_MAX) {
3548 char buf[1 + sizeof(UV)];
3549 char *in = buf + sizeof(buf);
3550 UV auv = U_V(adouble);;
3553 *--in = (auv & 0x7f) | 0x80;
3556 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3557 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3559 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3560 char *from, *result, *in;
3565 /* Copy string and check for compliance */
3566 from = SvPV(fromstr, len);
3567 if ((norm = is_an_int(from, len)) == NULL)
3568 croak("can compress only unsigned integer");
3570 New('w', result, len, char);
3574 *--in = div128(norm, &done) | 0x80;
3575 result[len - 1] &= 0x7F; /* clear continue bit */
3576 sv_catpvn(cat, in, (result + len) - in);
3578 SvREFCNT_dec(norm); /* free norm */
3580 else if (SvNOKp(fromstr)) {
3581 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3582 char *in = buf + sizeof(buf);
3585 double next = floor(adouble / 128);
3586 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3587 if (--in < buf) /* this cannot happen ;-) */
3588 croak ("Cannot compress integer");
3590 } while (adouble > 0);
3591 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3592 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3595 croak("Cannot compress non integer");
3601 aint = SvIV(fromstr);
3602 sv_catpvn(cat, (char*)&aint, sizeof(int));
3608 aulong = U_L(SvNV(fromstr));
3610 aulong = htonl(aulong);
3612 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3618 aulong = U_L(SvNV(fromstr));
3620 aulong = htovl(aulong);
3622 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3628 aulong = U_L(SvNV(fromstr));
3629 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3635 along = SvIV(fromstr);
3636 sv_catpvn(cat, (char*)&along, sizeof(I32));
3643 auquad = (unsigned Quad_t)SvIV(fromstr);
3644 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3650 aquad = (Quad_t)SvIV(fromstr);
3651 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3654 #endif /* HAS_QUAD */
3656 len = 1; /* assume SV is correct length */
3661 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3662 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3667 aptr = SvPV(fromstr, fromlen);
3668 SvGROW(cat, fromlen * 4 / 3);
3673 while (fromlen > 0) {
3680 doencodes(cat, aptr, todo);
3698 register I32 limit = POPi; /* note, negative is forever */
3701 register char *s = SvPV(sv, len);
3702 char *strend = s + len;
3703 register PMOP *pm = (PMOP*)POPs;
3707 I32 maxiters = (strend - s) + 10;
3710 I32 origlimit = limit;
3713 AV *oldstack = curstack;
3714 register REGEXP *rx = pm->op_pmregexp;
3716 I32 oldsave = savestack_ix;
3719 DIE("panic: do_split");
3721 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3722 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3724 if (pm->op_pmreplroot)
3725 ary = GvAVn((GV*)pm->op_pmreplroot);
3726 else if (gimme != G_ARRAY)
3730 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3734 for (i = AvFILL(ary); i >= 0; i--)
3735 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3739 /* temporarily switch stacks */
3740 SWITCHSTACK(curstack, ary);
3742 base = SP - stack_base;
3744 if (pm->op_pmflags & PMf_SKIPWHITE) {
3745 if (pm->op_pmflags & PMf_LOCALE) {
3746 while (isSPACE_LC(*s))
3754 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3756 multiline = pm->op_pmflags & PMf_MULTILINE;
3760 limit = maxiters + 2;
3761 if (pm->op_pmflags & PMf_WHITE) {
3764 while (m < strend &&
3765 !((pm->op_pmflags & PMf_LOCALE)
3766 ? isSPACE_LC(*m) : isSPACE(*m)))
3771 dstr = NEWSV(30, m-s);
3772 sv_setpvn(dstr, s, m-s);
3778 while (s < strend &&
3779 ((pm->op_pmflags & PMf_LOCALE)
3780 ? isSPACE_LC(*s) : isSPACE(*s)))
3784 else if (strEQ("^", rx->precomp)) {
3787 for (m = s; m < strend && *m != '\n'; m++) ;
3791 dstr = NEWSV(30, m-s);
3792 sv_setpvn(dstr, s, m-s);
3799 else if (pm->op_pmshort) {
3800 i = SvCUR(pm->op_pmshort);
3802 i = *SvPVX(pm->op_pmshort);
3805 for (m = s; m < strend && *m != i; m++) ;
3808 dstr = NEWSV(30, m-s);
3809 sv_setpvn(dstr, s, m-s);
3818 while (s < strend && --limit &&
3819 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3823 dstr = NEWSV(31, m-s);
3824 sv_setpvn(dstr, s, m-s);
3833 maxiters += (strend - s) * rx->nparens;
3834 while (s < strend && --limit &&
3835 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3837 TAINT_IF(rx->exec_tainted);
3839 && rx->subbase != orig) {
3844 strend = s + (strend - m);
3847 dstr = NEWSV(32, m-s);
3848 sv_setpvn(dstr, s, m-s);
3853 for (i = 1; i <= rx->nparens; i++) {
3857 dstr = NEWSV(33, m-s);
3858 sv_setpvn(dstr, s, m-s);
3861 dstr = NEWSV(33, 0);
3870 LEAVE_SCOPE(oldsave);
3871 iters = (SP - stack_base) - base;
3872 if (iters > maxiters)
3875 /* keep field after final delim? */
3876 if (s < strend || (iters && origlimit)) {
3877 dstr = NEWSV(34, strend-s);
3878 sv_setpvn(dstr, s, strend-s);
3884 else if (!origlimit) {
3885 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3889 SWITCHSTACK(ary, oldstack);
3890 if (gimme == G_ARRAY) {
3892 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3898 if (gimme == G_ARRAY)
3901 if (iters || !pm->op_pmreplroot) {