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 almost everywhere.
32 * Mask used after bitwise operations.
34 * There is at least one realm (Cray word machines) that doesn't
35 * have an integral type (except char) small enough to be represented
36 * in a double without loss; that is, it has no 32-bit type.
38 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
40 # define BW_MASK ((1 << BW_BITS) - 1)
41 # define BW_SIGN (1 << (BW_BITS - 1))
42 # define BWi(i) (((i) & BW_SIGN) ? ((i) | ~BW_MASK) : ((i) & BW_MASK))
43 # define BWu(u) ((u) & BW_MASK)
50 * Offset for integer pack/unpack.
52 * On architectures where I16 and I32 aren't really 16 and 32 bits,
53 * which for now are all Crays, pack and unpack have to play games.
57 * These values are required for portability of pack() output.
58 * If they're not right on your machine, then pack() and unpack()
59 * wouldn't work right anyway; you'll need to apply the Cray hack.
60 * (I'd like to check them with #if, but you can't use sizeof() in
66 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
67 # if BYTEORDER == 0x12345678
68 # define OFF16(p) (char*)(p)
69 # define OFF32(p) (char*)(p)
71 # if BYTEORDER == 0x87654321
72 # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16))
73 # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32))
75 }}}} bad cray byte order
78 # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char))
79 # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char))
80 # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16)
81 # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32)
83 # define COPY16(s,p) Copy(s, p, SIZE16, char)
84 # define COPY32(s,p) Copy(s, p, SIZE32, char)
85 # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16)
86 # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32)
89 static void doencodes _((SV* sv, char* s, I32 len));
90 static SV* refto _((SV* sv));
91 static U32 seed _((void));
93 static bool srand_called = FALSE;
95 /* variations on pp_null */
100 if (GIMME_V == G_SCALAR)
115 if (op->op_private & OPpLVAL_INTRO)
116 SAVECLEARSV(curpad[op->op_targ]);
118 if (op->op_flags & OPf_REF) {
122 if (GIMME == G_ARRAY) {
123 I32 maxarg = AvFILL((AV*)TARG) + 1;
125 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
129 SV* sv = sv_newmortal();
130 I32 maxarg = AvFILL((AV*)TARG) + 1;
131 sv_setiv(sv, maxarg);
143 if (op->op_private & OPpLVAL_INTRO)
144 SAVECLEARSV(curpad[op->op_targ]);
145 if (op->op_flags & OPf_REF)
148 if (gimme == G_ARRAY) {
149 RETURNOP(do_kv(ARGS));
151 else if (gimme == G_SCALAR) {
152 SV* sv = sv_newmortal();
153 if (HvFILL((HV*)TARG))
154 sv_setpvf(sv, "%ld/%ld",
155 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG) + 1);
165 DIE("NOT IMPL LINE %d",__LINE__);
177 if (SvTYPE(sv) == SVt_PVIO) {
178 GV *gv = (GV*) sv_newmortal();
179 gv_init(gv, 0, "", 0, 0);
180 GvIOp(gv) = (IO *)sv;
183 } else if (SvTYPE(sv) != SVt_PVGV)
184 DIE("Not a GLOB reference");
187 if (SvTYPE(sv) != SVt_PVGV) {
190 if (SvGMAGICAL(sv)) {
196 if (op->op_flags & OPf_REF ||
197 op->op_private & HINT_STRICT_REFS)
198 DIE(no_usym, "a symbol");
204 if (op->op_private & HINT_STRICT_REFS)
205 DIE(no_symref, sym, "a symbol");
206 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
209 if (op->op_private & OPpLVAL_INTRO)
210 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
222 switch (SvTYPE(sv)) {
226 DIE("Not a SCALAR reference");
233 if (SvTYPE(gv) != SVt_PVGV) {
234 if (SvGMAGICAL(sv)) {
240 if (op->op_flags & OPf_REF ||
241 op->op_private & HINT_STRICT_REFS)
242 DIE(no_usym, "a SCALAR");
248 if (op->op_private & HINT_STRICT_REFS)
249 DIE(no_symref, sym, "a SCALAR");
250 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
254 if (op->op_flags & OPf_MOD) {
255 if (op->op_private & OPpLVAL_INTRO)
256 sv = save_scalar((GV*)TOPs);
257 else if (op->op_private & OPpDEREF)
258 vivify_ref(sv, op->op_private & OPpDEREF);
268 SV *sv = AvARYLEN(av);
270 AvARYLEN(av) = sv = NEWSV(0,0);
271 sv_upgrade(sv, SVt_IV);
272 sv_magic(sv, (SV*)av, '#', Nullch, 0);
280 dSP; dTARGET; dPOPss;
282 if (op->op_flags & OPf_MOD) {
283 if (SvTYPE(TARG) < SVt_PVLV) {
284 sv_upgrade(TARG, SVt_PVLV);
285 sv_magic(TARG, Nullsv, '.', Nullch, 0);
290 PUSHs(TARG); /* no SvSETMAGIC */
296 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
297 mg = mg_find(sv, 'g');
298 if (mg && mg->mg_len >= 0) {
299 PUSHi(mg->mg_len + curcop->cop_arybase);
313 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
314 /* (But not in defined().) */
315 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
318 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
335 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
337 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
345 CV* cv = (CV*)curpad[op->op_targ];
347 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
363 if (GIMME != G_ARRAY) {
367 EXTEND_MORTAL(SP - MARK);
369 *MARK = refto(*MARK);
379 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
382 if (!(sv = LvTARG(sv)))
385 else if (SvPADTMP(sv))
388 dTHR; /* just for SvREFCNT_inc */
390 (void)SvREFCNT_inc(sv);
393 sv_upgrade(rv, SVt_RV);
407 if (sv && SvGMAGICAL(sv))
410 if (!sv || !SvROK(sv))
414 pv = sv_reftype(sv,TRUE);
415 PUSHp(pv, strlen(pv));
425 stash = curcop->cop_stash;
427 stash = gv_stashsv(POPs, TRUE);
429 (void)sv_bless3(TOPs, stash, TRUE);
433 /* Pattern matching */
438 register unsigned char *s;
441 register I32 *sfirst;
445 if (sv == lastscream) {
451 SvSCREAM_off(lastscream);
452 SvREFCNT_dec(lastscream);
454 lastscream = SvREFCNT_inc(sv);
457 s = (unsigned char*)(SvPV(sv, len));
461 if (pos > maxscream) {
463 maxscream = pos + 80;
464 New(301, screamfirst, 256, I32);
465 New(302, screamnext, maxscream, I32);
468 maxscream = pos + pos / 4;
469 Renew(screamnext, maxscream, I32);
473 sfirst = screamfirst;
476 if (!sfirst || !snext)
477 DIE("do_study: out of memory");
479 for (ch = 256; ch; --ch)
486 snext[pos] = sfirst[ch] - pos;
493 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
502 if (op->op_flags & OPf_STACKED)
508 TARG = sv_newmortal();
509 PUSHi(do_trans(sv, op));
513 /* Lvalue operators. */
535 SETi(do_chomp(TOPs));
542 register I32 count = 0;
545 count += do_chomp(POPs);
556 if (!sv || !SvANY(sv))
558 switch (SvTYPE(sv)) {
560 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
564 if (HvARRAY(sv) || SvRMAGICAL(sv))
568 if (CvROOT(sv) || CvXSUB(sv))
585 if (!op->op_private) {
594 if (SvTHINKFIRST(sv)) {
601 switch (SvTYPE(sv)) {
611 if (cv_const_sv((CV*)sv))
612 warn("Constant subroutine %s undefined",
613 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
616 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
618 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
622 sv_setsv(sv, &sv_undef);
625 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
628 SvPV_set(sv, Nullch);
641 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
643 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
644 SvIVX(TOPs) != IV_MIN)
647 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
658 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
660 sv_setsv(TARG, TOPs);
661 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
662 SvIVX(TOPs) != IV_MAX)
665 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
679 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
681 sv_setsv(TARG, TOPs);
682 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
683 SvIVX(TOPs) != IV_MIN)
686 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
695 /* Ordinary operators. */
699 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
702 SETn( pow( left, right) );
709 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
712 SETn( left * right );
719 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
724 DIE("Illegal division by zero");
726 /* insure that 20./5. == 4. */
729 if ((double)I_V(left) == left &&
730 (double)I_V(right) == right &&
731 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
734 value = left / right;
738 value = left / right;
747 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
755 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
757 right = (right_neg = (i < 0)) ? -i : i;
761 right = U_V((right_neg = (n < 0)) ? -n : n);
764 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
766 left = (left_neg = (i < 0)) ? -i : i;
770 left = U_V((left_neg = (n < 0)) ? -n : n);
774 DIE("Illegal modulus zero");
777 if ((left_neg != right_neg) && ans)
780 if (ans <= -(UV)IV_MAX)
781 sv_setiv(TARG, (IV) -ans);
783 sv_setnv(TARG, -(double)ans);
794 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
796 register I32 count = POPi;
797 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
799 I32 items = SP - MARK;
811 repeatcpy((char*)(MARK + items), (char*)MARK,
812 items * sizeof(SV*), count - 1);
818 else { /* Note: mark already snarfed by pp_list */
823 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
824 if (SvREADONLY(tmpstr) && curcop != &compiling)
825 DIE("Can't x= to readonly value");
829 SvSetSV(TARG, tmpstr);
830 SvPV_force(TARG, len);
835 SvGROW(TARG, (count * len) + 1);
836 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
837 SvCUR(TARG) *= count;
841 (void)SvPOK_only(TARG);
850 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
853 SETn( left - right );
860 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
863 if (op->op_private & HINT_INTEGER) {
879 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
882 if (op->op_private & HINT_INTEGER) {
898 dSP; tryAMAGICbinSET(lt,0);
901 SETs(boolSV(TOPn < value));
908 dSP; tryAMAGICbinSET(gt,0);
911 SETs(boolSV(TOPn > value));
918 dSP; tryAMAGICbinSET(le,0);
921 SETs(boolSV(TOPn <= value));
928 dSP; tryAMAGICbinSET(ge,0);
931 SETs(boolSV(TOPn >= value));
938 dSP; tryAMAGICbinSET(ne,0);
941 SETs(boolSV(TOPn != value));
948 dSP; dTARGET; tryAMAGICbin(ncmp,0);
955 else if (left < right)
957 else if (left > right)
970 dSP; tryAMAGICbinSET(slt,0);
973 int cmp = ((op->op_private & OPpLOCALE)
974 ? sv_cmp_locale(left, right)
975 : sv_cmp(left, right));
976 SETs(boolSV(cmp < 0));
983 dSP; tryAMAGICbinSET(sgt,0);
986 int cmp = ((op->op_private & OPpLOCALE)
987 ? sv_cmp_locale(left, right)
988 : sv_cmp(left, right));
989 SETs(boolSV(cmp > 0));
996 dSP; tryAMAGICbinSET(sle,0);
999 int cmp = ((op->op_private & OPpLOCALE)
1000 ? sv_cmp_locale(left, right)
1001 : sv_cmp(left, right));
1002 SETs(boolSV(cmp <= 0));
1009 dSP; tryAMAGICbinSET(sge,0);
1012 int cmp = ((op->op_private & OPpLOCALE)
1013 ? sv_cmp_locale(left, right)
1014 : sv_cmp(left, right));
1015 SETs(boolSV(cmp >= 0));
1022 dSP; tryAMAGICbinSET(seq,0);
1025 SETs(boolSV(sv_eq(left, right)));
1032 dSP; tryAMAGICbinSET(sne,0);
1035 SETs(boolSV(!sv_eq(left, right)));
1042 dSP; dTARGET; tryAMAGICbin(scmp,0);
1045 int cmp = ((op->op_private & OPpLOCALE)
1046 ? sv_cmp_locale(left, right)
1047 : sv_cmp(left, right));
1055 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
1058 if (SvNIOKp(left) || SvNIOKp(right)) {
1059 if (op->op_private & HINT_INTEGER) {
1060 IBW value = SvIV(left) & SvIV(right);
1064 UBW value = SvUV(left) & SvUV(right);
1069 do_vop(op->op_type, TARG, left, right);
1078 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1081 if (SvNIOKp(left) || SvNIOKp(right)) {
1082 if (op->op_private & HINT_INTEGER) {
1083 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1087 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1092 do_vop(op->op_type, TARG, left, right);
1101 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1104 if (SvNIOKp(left) || SvNIOKp(right)) {
1105 if (op->op_private & HINT_INTEGER) {
1106 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1110 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1115 do_vop(op->op_type, TARG, left, right);
1124 dSP; dTARGET; tryAMAGICun(neg);
1129 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1131 else if (SvNIOKp(sv))
1133 else if (SvPOKp(sv)) {
1135 char *s = SvPV(sv, len);
1136 if (isIDFIRST(*s)) {
1137 sv_setpvn(TARG, "-", 1);
1140 else if (*s == '+' || *s == '-') {
1142 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1145 sv_setnv(TARG, -SvNV(sv));
1157 dSP; tryAMAGICunSET(not);
1158 #endif /* OVERLOAD */
1159 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1165 dSP; dTARGET; tryAMAGICun(compl);
1169 if (op->op_private & HINT_INTEGER) {
1170 IBW value = ~SvIV(sv);
1174 UBW value = ~SvUV(sv);
1179 register char *tmps;
1180 register long *tmpl;
1185 tmps = SvPV_force(TARG, len);
1188 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1191 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1195 for ( ; anum > 0; anum--, tmps++)
1204 /* integer versions of some of the above */
1208 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1211 SETi( left * right );
1218 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1222 DIE("Illegal division by zero");
1223 value = POPi / value;
1231 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1235 DIE("Illegal modulus zero");
1236 SETi( left % right );
1243 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1246 SETi( left + right );
1253 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1256 SETi( left - right );
1263 dSP; tryAMAGICbinSET(lt,0);
1266 SETs(boolSV(left < right));
1273 dSP; tryAMAGICbinSET(gt,0);
1276 SETs(boolSV(left > right));
1283 dSP; tryAMAGICbinSET(le,0);
1286 SETs(boolSV(left <= right));
1293 dSP; tryAMAGICbinSET(ge,0);
1296 SETs(boolSV(left >= right));
1303 dSP; tryAMAGICbinSET(eq,0);
1306 SETs(boolSV(left == right));
1313 dSP; tryAMAGICbinSET(ne,0);
1316 SETs(boolSV(left != right));
1323 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1330 else if (left < right)
1341 dSP; dTARGET; tryAMAGICun(neg);
1346 /* High falutin' math. */
1350 dSP; dTARGET; tryAMAGICbin(atan2,0);
1353 SETn(atan2(left, right));
1360 dSP; dTARGET; tryAMAGICun(sin);
1372 dSP; dTARGET; tryAMAGICun(cos);
1392 if (!srand_called) {
1393 (void)srand((unsigned)seed());
1394 srand_called = TRUE;
1397 value = rand() * value / 2147483648.0;
1400 value = rand() * value / 65536.0;
1403 value = rand() * value / 32768.0;
1405 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1421 (void)srand((unsigned)anum);
1422 srand_called = TRUE;
1431 * This is really just a quick hack which grabs various garbage
1432 * values. It really should be a real hash algorithm which
1433 * spreads the effect of every input bit onto every output bit,
1434 * if someone who knows about such tings would bother to write it.
1435 * Might be a good idea to add that function to CORE as well.
1436 * No numbers below come from careful analysis or anyting here,
1437 * except they are primes and SEED_C1 > 1E6 to get a full-width
1438 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1439 * probably be bigger too.
1442 # define SEED_C1 1000003
1443 #define SEED_C4 73819
1445 # define SEED_C1 25747
1446 #define SEED_C4 20639
1450 #define SEED_C5 26107
1455 # include <starlet.h>
1456 /* when[] = (low 32 bits, high 32 bits) of time since epoch
1457 * in 100-ns units, typically incremented ever 10 ms. */
1458 unsigned int when[2];
1459 _ckvmssts(sys$gettim(when));
1460 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1462 # ifdef HAS_GETTIMEOFDAY
1463 struct timeval when;
1464 gettimeofday(&when,(struct timezone *) 0);
1465 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1469 u = (U32)SEED_C1 * when;
1472 u += SEED_C3 * (U32)getpid();
1473 u += SEED_C4 * (U32)(UV)stack_sp;
1474 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1475 u += SEED_C5 * (U32)(UV)&when;
1482 dSP; dTARGET; tryAMAGICun(exp);
1494 dSP; dTARGET; tryAMAGICun(log);
1499 SET_NUMERIC_STANDARD();
1500 DIE("Can't take log of %g", value);
1510 dSP; dTARGET; tryAMAGICun(sqrt);
1515 SET_NUMERIC_STANDARD();
1516 DIE("Can't take sqrt of %g", value);
1518 value = sqrt(value);
1528 double value = TOPn;
1531 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1537 (void)modf(value, &value);
1539 (void)modf(-value, &value);
1554 dSP; dTARGET; tryAMAGICun(abs);
1556 double value = TOPn;
1559 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1560 (iv = SvIVX(TOPs)) != IV_MIN) {
1581 XPUSHu(scan_hex(tmps, 99, &argtype));
1593 while (*tmps && isSPACE(*tmps))
1598 value = scan_hex(++tmps, 99, &argtype);
1600 value = scan_oct(tmps, 99, &argtype);
1610 SETi( sv_len(TOPs) );
1622 I32 lvalue = op->op_flags & OPf_MOD;
1624 I32 arybase = curcop->cop_arybase;
1628 pos = POPi - arybase;
1630 tmps = SvPV(sv, curlen);
1632 pos += curlen + arybase;
1633 if (pos < 0 && MAXARG < 3)
1636 if (pos < 0 || pos > curlen) {
1637 if (dowarn || lvalue)
1638 warn("substr outside of string");
1645 len += curlen - pos;
1650 rem = curlen - pos; /* rem=how many bytes left*/
1653 sv_setpvn(TARG, tmps, rem);
1654 if (lvalue) { /* it's an lvalue! */
1655 if (!SvGMAGICAL(sv)) {
1659 warn("Attempt to use reference as lvalue in substr");
1661 if (SvOK(sv)) /* is it defined ? */
1662 (void)SvPOK_only(sv);
1664 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1667 if (SvTYPE(TARG) < SVt_PVLV) {
1668 sv_upgrade(TARG, SVt_PVLV);
1669 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1674 LvTARGOFF(TARG) = pos;
1675 LvTARGLEN(TARG) = rem;
1678 PUSHs(TARG); /* avoid SvSETMAGIC here */
1685 register I32 size = POPi;
1686 register I32 offset = POPi;
1687 register SV *src = POPs;
1688 I32 lvalue = op->op_flags & OPf_MOD;
1690 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1691 unsigned long retnum;
1694 offset *= size; /* turn into bit offset */
1695 len = (offset + size + 7) / 8;
1696 if (offset < 0 || size < 1)
1699 if (lvalue) { /* it's an lvalue! */
1700 if (SvTYPE(TARG) < SVt_PVLV) {
1701 sv_upgrade(TARG, SVt_PVLV);
1702 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1707 LvTARGOFF(TARG) = offset;
1708 LvTARGLEN(TARG) = size;
1716 if (offset >= srclen)
1719 retnum = (unsigned long) s[offset] << 8;
1721 else if (size == 32) {
1722 if (offset >= srclen)
1724 else if (offset + 1 >= srclen)
1725 retnum = (unsigned long) s[offset] << 24;
1726 else if (offset + 2 >= srclen)
1727 retnum = ((unsigned long) s[offset] << 24) +
1728 ((unsigned long) s[offset + 1] << 16);
1730 retnum = ((unsigned long) s[offset] << 24) +
1731 ((unsigned long) s[offset + 1] << 16) +
1732 (s[offset + 2] << 8);
1737 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1742 else if (size == 16)
1743 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1744 else if (size == 32)
1745 retnum = ((unsigned long) s[offset] << 24) +
1746 ((unsigned long) s[offset + 1] << 16) +
1747 (s[offset + 2] << 8) + s[offset+3];
1751 sv_setiv(TARG, (IV)retnum);
1766 I32 arybase = curcop->cop_arybase;
1771 offset = POPi - arybase;
1774 tmps = SvPV(big, biglen);
1777 else if (offset > biglen)
1779 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1780 (unsigned char*)tmps + biglen, little)))
1781 retval = -1 + arybase;
1783 retval = tmps2 - tmps + arybase;
1800 I32 arybase = curcop->cop_arybase;
1806 tmps2 = SvPV(little, llen);
1807 tmps = SvPV(big, blen);
1811 offset = SvIV(offstr) - arybase + llen;
1814 else if (offset > blen)
1816 if (!(tmps2 = rninstr(tmps, tmps + offset,
1817 tmps2, tmps2 + llen)))
1818 retval = -1 + arybase;
1820 retval = tmps2 - tmps + arybase;
1827 dSP; dMARK; dORIGMARK; dTARGET;
1828 #ifdef USE_LOCALE_NUMERIC
1829 if (op->op_private & OPpLOCALE)
1830 SET_NUMERIC_LOCAL();
1832 SET_NUMERIC_STANDARD();
1834 do_sprintf(TARG, SP-MARK, MARK+1);
1835 TAINT_IF(SvTAINTED(TARG));
1849 value = (I32) (*tmps & 255);
1854 value = (I32) (anum & 255);
1865 (void)SvUPGRADE(TARG,SVt_PV);
1871 (void)SvPOK_only(TARG);
1878 dSP; dTARGET; dPOPTOPssrl;
1880 char *tmps = SvPV(left, na);
1882 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1884 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1888 "The crypt() function is unimplemented due to excessive paranoia.");
1900 if (!SvPADTMP(sv)) {
1906 s = SvPV_force(sv, na);
1908 if (op->op_private & OPpLOCALE) {
1911 *s = toUPPER_LC(*s);
1926 if (!SvPADTMP(sv)) {
1932 s = SvPV_force(sv, na);
1934 if (op->op_private & OPpLOCALE) {
1937 *s = toLOWER_LC(*s);
1954 if (!SvPADTMP(sv)) {
1961 s = SvPV_force(sv, len);
1963 register char *send = s + len;
1965 if (op->op_private & OPpLOCALE) {
1968 for (; s < send; s++)
1969 *s = toUPPER_LC(*s);
1972 for (; s < send; s++)
1986 if (!SvPADTMP(sv)) {
1993 s = SvPV_force(sv, len);
1995 register char *send = s + len;
1997 if (op->op_private & OPpLOCALE) {
2000 for (; s < send; s++)
2001 *s = toLOWER_LC(*s);
2004 for (; s < send; s++)
2016 register char *s = SvPV(sv,len);
2020 (void)SvUPGRADE(TARG, SVt_PV);
2021 SvGROW(TARG, (len * 2) + 1);
2029 SvCUR_set(TARG, d - SvPVX(TARG));
2030 (void)SvPOK_only(TARG);
2033 sv_setpvn(TARG, s, len);
2042 dSP; dMARK; dORIGMARK;
2044 register AV* av = (AV*)POPs;
2045 register I32 lval = op->op_flags & OPf_MOD;
2046 I32 arybase = curcop->cop_arybase;
2049 if (SvTYPE(av) == SVt_PVAV) {
2050 if (lval && op->op_private & OPpLVAL_INTRO) {
2052 for (svp = mark + 1; svp <= sp; svp++) {
2057 if (max > AvMAX(av))
2060 while (++MARK <= SP) {
2061 elem = SvIVx(*MARK);
2065 svp = av_fetch(av, elem, lval);
2067 if (!svp || *svp == &sv_undef)
2068 DIE(no_aelem, elem);
2069 if (op->op_private & OPpLVAL_INTRO)
2072 *MARK = svp ? *svp : &sv_undef;
2075 if (GIMME != G_ARRAY) {
2083 /* Associative arrays. */
2088 HV *hash = (HV*)POPs;
2090 I32 gimme = GIMME_V;
2091 I32 realhv = (SvTYPE(hash) == SVt_PVHV);
2094 /* might clobber stack_sp */
2095 entry = realhv ? hv_iternext(hash) : avhv_iternext((AV*)hash);
2100 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2101 if (gimme == G_ARRAY) {
2103 /* might clobber stack_sp */
2104 sv_setsv(TARG, realhv ?
2105 hv_iterval(hash, entry) : avhv_iterval((AV*)hash, entry));
2110 else if (gimme == G_SCALAR)
2129 I32 gimme = GIMME_V;
2130 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2134 if (op->op_private & OPpSLICE) {
2138 hvtype = SvTYPE(hv);
2139 while (++MARK <= SP) {
2140 if (hvtype == SVt_PVHV)
2141 sv = hv_delete_ent(hv, *MARK, discard, 0);
2142 else if (hvtype == SVt_PVAV)
2143 sv = avhv_delete_ent((AV*)hv, *MARK, discard, 0);
2145 DIE("Not a HASH reference");
2146 *MARK = sv ? sv : &sv_undef;
2150 else if (gimme == G_SCALAR) {
2159 if (SvTYPE(hv) == SVt_PVHV)
2160 sv = hv_delete_ent(hv, keysv, discard, 0);
2161 else if (SvTYPE(hv) == SVt_PVAV)
2162 sv = avhv_delete_ent((AV*)hv, keysv, discard, 0);
2164 DIE("Not a HASH reference");
2178 if (SvTYPE(hv) == SVt_PVHV) {
2179 if (hv_exists_ent(hv, tmpsv, 0))
2181 } else if (SvTYPE(hv) == SVt_PVAV) {
2182 if (avhv_exists_ent((AV*)hv, tmpsv, 0))
2185 DIE("Not a HASH reference");
2192 dSP; dMARK; dORIGMARK;
2194 register HV *hv = (HV*)POPs;
2195 register I32 lval = op->op_flags & OPf_MOD;
2196 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
2198 if (realhv || SvTYPE(hv) == SVt_PVAV) {
2199 while (++MARK <= SP) {
2203 he = hv_fetch_ent(hv, keysv, lval, 0);
2204 svp = he ? &HeVAL(he) : 0;
2206 svp = avhv_fetch_ent((AV*)hv, keysv, lval, 0);
2209 if (!he || HeVAL(he) == &sv_undef)
2210 DIE(no_helem, SvPV(keysv, na));
2211 if (op->op_private & OPpLVAL_INTRO)
2212 save_svref(&HeVAL(he));
2214 *MARK = he ? HeVAL(he) : &sv_undef;
2217 if (GIMME != G_ARRAY) {
2225 /* List operators. */
2230 if (GIMME != G_ARRAY) {
2232 *MARK = *SP; /* unwanted list, return last item */
2243 SV **lastrelem = stack_sp;
2244 SV **lastlelem = stack_base + POPMARK;
2245 SV **firstlelem = stack_base + POPMARK + 1;
2246 register SV **firstrelem = lastlelem + 1;
2247 I32 arybase = curcop->cop_arybase;
2248 I32 lval = op->op_flags & OPf_MOD;
2249 I32 is_something_there = lval;
2251 register I32 max = lastrelem - lastlelem;
2252 register SV **lelem;
2255 if (GIMME != G_ARRAY) {
2256 ix = SvIVx(*lastlelem);
2261 if (ix < 0 || ix >= max)
2262 *firstlelem = &sv_undef;
2264 *firstlelem = firstrelem[ix];
2270 SP = firstlelem - 1;
2274 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2280 else if (!(*lelem = firstrelem[ix]))
2285 if (ix >= max || !(*lelem = firstrelem[ix]))
2288 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2289 is_something_there = TRUE;
2291 if (is_something_there)
2294 SP = firstlelem - 1;
2300 dSP; dMARK; dORIGMARK;
2301 I32 items = SP - MARK;
2302 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2303 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2310 dSP; dMARK; dORIGMARK;
2311 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2315 SV *val = NEWSV(46, 0);
2317 sv_setsv(val, *++MARK);
2319 warn("Odd number of elements in hash list");
2320 (void)hv_store_ent(hv,key,val,0);
2329 dSP; dMARK; dORIGMARK;
2330 register AV *ary = (AV*)*++MARK;
2334 register I32 offset;
2335 register I32 length;
2344 offset = SvIVx(*MARK);
2346 offset += AvFILL(ary) + 1;
2348 offset -= curcop->cop_arybase;
2350 length = SvIVx(*MARK++);
2355 length = AvMAX(ary) + 1; /* close enough to infinity */
2359 length = AvMAX(ary) + 1;
2367 if (offset > AvFILL(ary) + 1)
2368 offset = AvFILL(ary) + 1;
2369 after = AvFILL(ary) + 1 - (offset + length);
2370 if (after < 0) { /* not that much array */
2371 length += after; /* offset+length now in array */
2377 /* At this point, MARK .. SP-1 is our new LIST */
2380 diff = newlen - length;
2382 if (diff < 0) { /* shrinking the area */
2384 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2385 Copy(MARK, tmparyval, newlen, SV*);
2388 MARK = ORIGMARK + 1;
2389 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2390 MEXTEND(MARK, length);
2391 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2393 EXTEND_MORTAL(length);
2394 for (i = length, dst = MARK; i; i--) {
2395 if (!SvIMMORTAL(*dst))
2396 sv_2mortal(*dst); /* free them eventualy */
2403 *MARK = AvARRAY(ary)[offset+length-1];
2405 if (!SvIMMORTAL(*MARK))
2407 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2408 SvREFCNT_dec(*dst++); /* free them now */
2411 AvFILL(ary) += diff;
2413 /* pull up or down? */
2415 if (offset < after) { /* easier to pull up */
2416 if (offset) { /* esp. if nothing to pull */
2417 src = &AvARRAY(ary)[offset-1];
2418 dst = src - diff; /* diff is negative */
2419 for (i = offset; i > 0; i--) /* can't trust Copy */
2423 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2427 if (after) { /* anything to pull down? */
2428 src = AvARRAY(ary) + offset + length;
2429 dst = src + diff; /* diff is negative */
2430 Move(src, dst, after, SV*);
2432 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2433 /* avoid later double free */
2437 dst[--i] = &sv_undef;
2440 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2442 *dst = NEWSV(46, 0);
2443 sv_setsv(*dst++, *src++);
2445 Safefree(tmparyval);
2448 else { /* no, expanding (or same) */
2450 New(452, tmparyval, length, SV*); /* so remember deletion */
2451 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2454 if (diff > 0) { /* expanding */
2456 /* push up or down? */
2458 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2462 Move(src, dst, offset, SV*);
2464 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2466 AvFILL(ary) += diff;
2469 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2470 av_extend(ary, AvFILL(ary) + diff);
2471 AvFILL(ary) += diff;
2474 dst = AvARRAY(ary) + AvFILL(ary);
2476 for (i = after; i; i--) {
2483 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2484 *dst = NEWSV(46, 0);
2485 sv_setsv(*dst++, *src++);
2487 MARK = ORIGMARK + 1;
2488 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2490 Copy(tmparyval, MARK, length, SV*);
2492 EXTEND_MORTAL(length);
2493 for (i = length, dst = MARK; i; i--) {
2494 if (!SvIMMORTAL(*dst))
2495 sv_2mortal(*dst); /* free them eventualy */
2499 Safefree(tmparyval);
2503 else if (length--) {
2504 *MARK = tmparyval[length];
2506 if (!SvIMMORTAL(*MARK))
2508 while (length-- > 0)
2509 SvREFCNT_dec(tmparyval[length]);
2511 Safefree(tmparyval);
2522 dSP; dMARK; dORIGMARK; dTARGET;
2523 register AV *ary = (AV*)*++MARK;
2524 register SV *sv = &sv_undef;
2526 for (++MARK; MARK <= SP; MARK++) {
2529 sv_setsv(sv, *MARK);
2533 PUSHi( AvFILL(ary) + 1 );
2541 SV *sv = av_pop(av);
2542 if (!SvIMMORTAL(sv) && AvREAL(av))
2543 (void)sv_2mortal(sv);
2552 SV *sv = av_shift(av);
2556 if (!SvIMMORTAL(sv) && AvREAL(av))
2557 (void)sv_2mortal(sv);
2564 dSP; dMARK; dORIGMARK; dTARGET;
2565 register AV *ary = (AV*)*++MARK;
2569 av_unshift(ary, SP - MARK);
2572 sv_setsv(sv, *++MARK);
2573 (void)av_store(ary, i++, sv);
2577 PUSHi( AvFILL(ary) + 1 );
2587 if (GIMME == G_ARRAY) {
2598 register char *down;
2604 do_join(TARG, &sv_no, MARK, SP);
2606 sv_setsv(TARG, (SP > MARK) ? *SP : GvSV(defgv));
2607 up = SvPV_force(TARG, len);
2609 down = SvPVX(TARG) + len - 1;
2615 (void)SvPOK_only(TARG);
2629 char *s = SvPV(sv, len);
2633 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2634 SV *new = newSVpv("0000000000", 10);
2637 SvREFCNT_dec(sv); /* free old sv */
2642 while (!*t) /* trailing '\0'? */
2645 i = ((*t - '0') << 7) + m;
2646 *(t--) = '0' + (i % 10);
2652 /* Explosives and implosives. */
2659 I32 gimme = GIMME_V;
2663 register char *pat = SvPV(left, llen);
2664 register char *s = SvPV(right, rlen);
2665 char *strend = s + rlen;
2667 register char *patend = pat + llen;
2672 /* These must not be in registers: */
2683 unsigned Quad_t auquad;
2689 register U32 culong;
2691 static char* bitcount = 0;
2693 if (gimme != G_ARRAY) { /* arrange to do first one only */
2695 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2696 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2698 while (isDIGIT(*patend) || *patend == '*')
2704 while (pat < patend) {
2706 datumtype = *pat++ & 0xFF;
2707 if (isSPACE(datumtype))
2711 else if (*pat == '*') {
2712 len = strend - strbeg; /* long enough */
2715 else if (isDIGIT(*pat)) {
2717 while (isDIGIT(*pat))
2718 len = (len * 10) + (*pat++ - '0');
2721 len = (datumtype != '@');
2724 croak("Invalid type in unpack: '%c'", (int)datumtype);
2726 if (len == 1 && pat[-1] != '1')
2735 if (len > strend - strbeg)
2736 DIE("@ outside of string");
2740 if (len > s - strbeg)
2741 DIE("X outside of string");
2745 if (len > strend - s)
2746 DIE("x outside of string");
2751 if (len > strend - s)
2754 goto uchar_checksum;
2755 sv = NEWSV(35, len);
2756 sv_setpvn(sv, s, len);
2758 if (datumtype == 'A') {
2759 aptr = s; /* borrow register */
2760 s = SvPVX(sv) + len - 1;
2761 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2764 SvCUR_set(sv, s - SvPVX(sv));
2765 s = aptr; /* unborrow register */
2767 XPUSHs(sv_2mortal(sv));
2771 if (pat[-1] == '*' || len > (strend - s) * 8)
2772 len = (strend - s) * 8;
2775 Newz(601, bitcount, 256, char);
2776 for (bits = 1; bits < 256; bits++) {
2777 if (bits & 1) bitcount[bits]++;
2778 if (bits & 2) bitcount[bits]++;
2779 if (bits & 4) bitcount[bits]++;
2780 if (bits & 8) bitcount[bits]++;
2781 if (bits & 16) bitcount[bits]++;
2782 if (bits & 32) bitcount[bits]++;
2783 if (bits & 64) bitcount[bits]++;
2784 if (bits & 128) bitcount[bits]++;
2788 culong += bitcount[*(unsigned char*)s++];
2793 if (datumtype == 'b') {
2795 if (bits & 1) culong++;
2801 if (bits & 128) culong++;
2808 sv = NEWSV(35, len + 1);
2811 aptr = pat; /* borrow register */
2813 if (datumtype == 'b') {
2815 for (len = 0; len < aint; len++) {
2816 if (len & 7) /*SUPPRESS 595*/
2820 *pat++ = '0' + (bits & 1);
2825 for (len = 0; len < aint; len++) {
2830 *pat++ = '0' + ((bits & 128) != 0);
2834 pat = aptr; /* unborrow register */
2835 XPUSHs(sv_2mortal(sv));
2839 if (pat[-1] == '*' || len > (strend - s) * 2)
2840 len = (strend - s) * 2;
2841 sv = NEWSV(35, len + 1);
2844 aptr = pat; /* borrow register */
2846 if (datumtype == 'h') {
2848 for (len = 0; len < aint; len++) {
2853 *pat++ = hexdigit[bits & 15];
2858 for (len = 0; len < aint; len++) {
2863 *pat++ = hexdigit[(bits >> 4) & 15];
2867 pat = aptr; /* unborrow register */
2868 XPUSHs(sv_2mortal(sv));
2871 if (len > strend - s)
2876 if (aint >= 128) /* fake up signed chars */
2886 if (aint >= 128) /* fake up signed chars */
2889 sv_setiv(sv, (IV)aint);
2890 PUSHs(sv_2mortal(sv));
2895 if (len > strend - s)
2910 sv_setiv(sv, (IV)auint);
2911 PUSHs(sv_2mortal(sv));
2916 along = (strend - s) / SIZE16;
2933 sv_setiv(sv, (IV)ashort);
2934 PUSHs(sv_2mortal(sv));
2941 along = (strend - s) / SIZE16;
2946 COPY16(s, &aushort);
2949 if (datumtype == 'n')
2950 aushort = ntohs(aushort);
2953 if (datumtype == 'v')
2954 aushort = vtohs(aushort);
2963 COPY16(s, &aushort);
2967 if (datumtype == 'n')
2968 aushort = ntohs(aushort);
2971 if (datumtype == 'v')
2972 aushort = vtohs(aushort);
2974 sv_setiv(sv, (IV)aushort);
2975 PUSHs(sv_2mortal(sv));
2980 along = (strend - s) / sizeof(int);
2985 Copy(s, &aint, 1, int);
2988 cdouble += (double)aint;
2997 Copy(s, &aint, 1, int);
3000 sv_setiv(sv, (IV)aint);
3001 PUSHs(sv_2mortal(sv));
3006 along = (strend - s) / sizeof(unsigned int);
3011 Copy(s, &auint, 1, unsigned int);
3012 s += sizeof(unsigned int);
3014 cdouble += (double)auint;
3023 Copy(s, &auint, 1, unsigned int);
3024 s += sizeof(unsigned int);
3026 sv_setuv(sv, (UV)auint);
3027 PUSHs(sv_2mortal(sv));
3032 along = (strend - s) / SIZE32;
3040 cdouble += (double)along;
3052 sv_setiv(sv, (IV)along);
3053 PUSHs(sv_2mortal(sv));
3060 along = (strend - s) / SIZE32;
3068 if (datumtype == 'N')
3069 aulong = ntohl(aulong);
3072 if (datumtype == 'V')
3073 aulong = vtohl(aulong);
3076 cdouble += (double)aulong;
3088 if (datumtype == 'N')
3089 aulong = ntohl(aulong);
3092 if (datumtype == 'V')
3093 aulong = vtohl(aulong);
3096 sv_setuv(sv, (UV)aulong);
3097 PUSHs(sv_2mortal(sv));
3102 along = (strend - s) / sizeof(char*);
3108 if (sizeof(char*) > strend - s)
3111 Copy(s, &aptr, 1, char*);
3117 PUSHs(sv_2mortal(sv));
3127 while ((len > 0) && (s < strend)) {
3128 auv = (auv << 7) | (*s & 0x7f);
3129 if (!(*s++ & 0x80)) {
3133 PUSHs(sv_2mortal(sv));
3137 else if (++bytes >= sizeof(UV)) { /* promote to string */
3140 sv = newSVpvf("%.*Vu", (int)TYPE_DIGITS(UV), auv);
3141 while (s < strend) {
3142 sv = mul128(sv, *s & 0x7f);
3143 if (!(*s++ & 0x80)) {
3152 PUSHs(sv_2mortal(sv));
3157 if ((s >= strend) && bytes)
3158 croak("Unterminated compressed integer");
3163 if (sizeof(char*) > strend - s)
3166 Copy(s, &aptr, 1, char*);
3171 sv_setpvn(sv, aptr, len);
3172 PUSHs(sv_2mortal(sv));
3179 if (s + sizeof(Quad_t) > strend)
3182 Copy(s, &aquad, 1, Quad_t);
3183 s += sizeof(Quad_t);
3186 if (aquad >= IV_MIN && aquad <= IV_MAX)
3187 sv_setiv(sv, (IV)aquad);
3189 sv_setnv(sv, (double)aquad);
3190 PUSHs(sv_2mortal(sv));
3197 if (s + sizeof(unsigned Quad_t) > strend)
3200 Copy(s, &auquad, 1, unsigned Quad_t);
3201 s += sizeof(unsigned Quad_t);
3204 if (aquad <= UV_MAX)
3205 sv_setuv(sv, (UV)auquad);
3207 sv_setnv(sv, (double)auquad);
3208 PUSHs(sv_2mortal(sv));
3212 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3215 along = (strend - s) / sizeof(float);
3220 Copy(s, &afloat, 1, float);
3229 Copy(s, &afloat, 1, float);
3232 sv_setnv(sv, (double)afloat);
3233 PUSHs(sv_2mortal(sv));
3239 along = (strend - s) / sizeof(double);
3244 Copy(s, &adouble, 1, double);
3245 s += sizeof(double);
3253 Copy(s, &adouble, 1, double);
3254 s += sizeof(double);
3256 sv_setnv(sv, (double)adouble);
3257 PUSHs(sv_2mortal(sv));
3262 along = (strend - s) * 3 / 4;
3263 sv = NEWSV(42, along);
3266 while (s < strend && *s > ' ' && *s < 'a') {
3271 len = (*s++ - ' ') & 077;
3273 if (s < strend && *s >= ' ')
3274 a = (*s++ - ' ') & 077;
3277 if (s < strend && *s >= ' ')
3278 b = (*s++ - ' ') & 077;
3281 if (s < strend && *s >= ' ')
3282 c = (*s++ - ' ') & 077;
3285 if (s < strend && *s >= ' ')
3286 d = (*s++ - ' ') & 077;
3289 hunk[0] = a << 2 | b >> 4;
3290 hunk[1] = b << 4 | c >> 2;
3291 hunk[2] = c << 6 | d;
3292 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3297 else if (s[1] == '\n') /* possible checksum byte */
3300 XPUSHs(sv_2mortal(sv));
3305 if (strchr("fFdD", datumtype) ||
3306 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3310 while (checksum >= 16) {
3314 while (checksum >= 4) {
3320 along = (1 << checksum) - 1;
3321 while (cdouble < 0.0)
3323 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3324 sv_setnv(sv, cdouble);
3327 if (checksum < 32) {
3328 aulong = (1 << checksum) - 1;
3331 sv_setuv(sv, (UV)culong);
3333 XPUSHs(sv_2mortal(sv));
3337 if (sp == oldsp && gimme == G_SCALAR)
3343 doencodes(sv, s, len)
3351 sv_catpvn(sv, hunk, 1);
3354 hunk[0] = ' ' + (077 & (*s >> 2));
3355 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3356 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3357 hunk[3] = ' ' + (077 & (s[2] & 077));
3358 sv_catpvn(sv, hunk, 4);
3362 for (s = SvPVX(sv); *s; s++) {
3366 sv_catpvn(sv, "\n", 1);
3374 SV *result = newSVpv("", l);
3375 char *result_c = SvPV(result, na); /* convenience */
3376 char *out = result_c;
3386 SvREFCNT_dec(result);
3409 SvREFCNT_dec(result);
3415 SvCUR_set(result, out - result_c);
3421 SV *pnum; /* must be '\0' terminated */
3425 char *s = SvPV(pnum, len);
3434 i = m * 10 + (*t - '0');
3436 r = (i >> 7); /* r < 10 */
3443 SvCUR_set(pnum, (STRLEN) (t - s));
3450 dSP; dMARK; dORIGMARK; dTARGET;
3451 register SV *cat = TARG;
3454 register char *pat = SvPVx(*++MARK, fromlen);
3455 register char *patend = pat + fromlen;
3460 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3461 static char *space10 = " ";
3463 /* These must not be in registers: */
3472 unsigned Quad_t auquad;
3480 sv_setpvn(cat, "", 0);
3481 while (pat < patend) {
3482 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3483 datumtype = *pat++ & 0xFF;
3484 if (isSPACE(datumtype))
3487 len = strchr("@Xxu", datumtype) ? 0 : items;
3490 else if (isDIGIT(*pat)) {
3492 while (isDIGIT(*pat))
3493 len = (len * 10) + (*pat++ - '0');
3499 croak("Invalid type in pack: '%c'", (int)datumtype);
3501 DIE("%% may only be used in unpack");
3512 if (SvCUR(cat) < len)
3513 DIE("X outside of string");
3520 sv_catpvn(cat, null10, 10);
3523 sv_catpvn(cat, null10, len);
3528 aptr = SvPV(fromstr, fromlen);
3532 sv_catpvn(cat, aptr, len);
3534 sv_catpvn(cat, aptr, fromlen);
3536 if (datumtype == 'A') {
3538 sv_catpvn(cat, space10, 10);
3541 sv_catpvn(cat, space10, len);
3545 sv_catpvn(cat, null10, 10);
3548 sv_catpvn(cat, null10, len);
3555 char *savepat = pat;
3560 aptr = SvPV(fromstr, fromlen);
3565 SvCUR(cat) += (len+7)/8;
3566 SvGROW(cat, SvCUR(cat) + 1);
3567 aptr = SvPVX(cat) + aint;
3572 if (datumtype == 'B') {
3573 for (len = 0; len++ < aint;) {
3574 items |= *pat++ & 1;
3578 *aptr++ = items & 0xff;
3584 for (len = 0; len++ < aint;) {
3590 *aptr++ = items & 0xff;
3596 if (datumtype == 'B')
3597 items <<= 7 - (aint & 7);
3599 items >>= 7 - (aint & 7);
3600 *aptr++ = items & 0xff;
3602 pat = SvPVX(cat) + SvCUR(cat);
3613 char *savepat = pat;
3618 aptr = SvPV(fromstr, fromlen);
3623 SvCUR(cat) += (len+1)/2;
3624 SvGROW(cat, SvCUR(cat) + 1);
3625 aptr = SvPVX(cat) + aint;
3630 if (datumtype == 'H') {
3631 for (len = 0; len++ < aint;) {
3633 items |= ((*pat++ & 15) + 9) & 15;
3635 items |= *pat++ & 15;
3639 *aptr++ = items & 0xff;
3645 for (len = 0; len++ < aint;) {
3647 items |= (((*pat++ & 15) + 9) & 15) << 4;
3649 items |= (*pat++ & 15) << 4;
3653 *aptr++ = items & 0xff;
3659 *aptr++ = items & 0xff;
3660 pat = SvPVX(cat) + SvCUR(cat);
3672 aint = SvIV(fromstr);
3674 sv_catpvn(cat, &achar, sizeof(char));
3677 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3682 afloat = (float)SvNV(fromstr);
3683 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3690 adouble = (double)SvNV(fromstr);
3691 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3697 ashort = (I16)SvIV(fromstr);
3699 ashort = htons(ashort);
3701 CAT16(cat, &ashort);
3707 ashort = (I16)SvIV(fromstr);
3709 ashort = htovs(ashort);
3711 CAT16(cat, &ashort);
3718 ashort = (I16)SvIV(fromstr);
3719 CAT16(cat, &ashort);
3725 auint = SvUV(fromstr);
3726 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3732 adouble = floor(SvNV(fromstr));
3735 croak("Cannot compress negative numbers");
3745 char buf[1 + sizeof(UV)];
3746 char *in = buf + sizeof(buf);
3747 UV auv = U_V(adouble);;
3750 *--in = (auv & 0x7f) | 0x80;
3753 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3754 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3756 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3757 char *from, *result, *in;
3762 /* Copy string and check for compliance */
3763 from = SvPV(fromstr, len);
3764 if ((norm = is_an_int(from, len)) == NULL)
3765 croak("can compress only unsigned integer");
3767 New('w', result, len, char);
3771 *--in = div128(norm, &done) | 0x80;
3772 result[len - 1] &= 0x7F; /* clear continue bit */
3773 sv_catpvn(cat, in, (result + len) - in);
3775 SvREFCNT_dec(norm); /* free norm */
3777 else if (SvNOKp(fromstr)) {
3778 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3779 char *in = buf + sizeof(buf);
3782 double next = floor(adouble / 128);
3783 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3784 if (--in < buf) /* this cannot happen ;-) */
3785 croak ("Cannot compress integer");
3787 } while (adouble > 0);
3788 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3789 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3792 croak("Cannot compress non integer");
3798 aint = SvIV(fromstr);
3799 sv_catpvn(cat, (char*)&aint, sizeof(int));
3805 aulong = SvUV(fromstr);
3807 aulong = htonl(aulong);
3809 CAT32(cat, &aulong);
3815 aulong = SvUV(fromstr);
3817 aulong = htovl(aulong);
3819 CAT32(cat, &aulong);
3825 aulong = SvUV(fromstr);
3826 CAT32(cat, &aulong);
3832 along = SvIV(fromstr);
3840 auquad = (unsigned Quad_t)SvIV(fromstr);
3841 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3847 aquad = (Quad_t)SvIV(fromstr);
3848 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3851 #endif /* HAS_QUAD */
3853 len = 1; /* assume SV is correct length */
3858 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3859 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3864 aptr = SvPV(fromstr, fromlen);
3865 SvGROW(cat, fromlen * 4 / 3);
3870 while (fromlen > 0) {
3877 doencodes(cat, aptr, todo);
3895 register I32 limit = POPi; /* note, negative is forever */
3898 register char *s = SvPV(sv, len);
3899 char *strend = s + len;
3901 register REGEXP *rx;
3905 I32 maxiters = (strend - s) + 10;
3908 I32 origlimit = limit;
3911 AV *oldstack = curstack;
3912 I32 gimme = GIMME_V;
3913 I32 oldsave = savestack_ix;
3916 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3921 DIE("panic: do_split");
3922 rx = pm->op_pmregexp;
3924 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3925 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3927 if (pm->op_pmreplroot)
3928 ary = GvAVn((GV*)pm->op_pmreplroot);
3929 else if (gimme != G_ARRAY)
3931 ary = (AV*)curpad[0];
3934 #endif /* USE_THREADS */
3937 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3941 for (i = AvFILL(ary); i >= 0; i--)
3942 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3946 /* temporarily switch stacks */
3947 SWITCHSTACK(curstack, ary);
3949 base = SP - stack_base;
3951 if (pm->op_pmflags & PMf_SKIPWHITE) {
3952 if (pm->op_pmflags & PMf_LOCALE) {
3953 while (isSPACE_LC(*s))
3961 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3963 multiline = pm->op_pmflags & PMf_MULTILINE;
3967 limit = maxiters + 2;
3968 if (pm->op_pmflags & PMf_WHITE) {
3971 while (m < strend &&
3972 !((pm->op_pmflags & PMf_LOCALE)
3973 ? isSPACE_LC(*m) : isSPACE(*m)))
3978 dstr = NEWSV(30, m-s);
3979 sv_setpvn(dstr, s, m-s);
3985 while (s < strend &&
3986 ((pm->op_pmflags & PMf_LOCALE)
3987 ? isSPACE_LC(*s) : isSPACE(*s)))
3991 else if (strEQ("^", rx->precomp)) {
3994 for (m = s; m < strend && *m != '\n'; m++) ;
3998 dstr = NEWSV(30, m-s);
3999 sv_setpvn(dstr, s, m-s);
4006 else if (pm->op_pmshort && !rx->nparens) {
4007 i = SvCUR(pm->op_pmshort);
4009 i = *SvPVX(pm->op_pmshort);
4012 for (m = s; m < strend && *m != i; m++) ;
4015 dstr = NEWSV(30, m-s);
4016 sv_setpvn(dstr, s, m-s);
4025 while (s < strend && --limit &&
4026 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
4030 dstr = NEWSV(31, m-s);
4031 sv_setpvn(dstr, s, m-s);
4040 maxiters += (strend - s) * rx->nparens;
4041 while (s < strend && --limit &&
4042 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
4044 TAINT_IF(rx->exec_tainted);
4046 && rx->subbase != orig) {
4051 strend = s + (strend - m);
4054 dstr = NEWSV(32, m-s);
4055 sv_setpvn(dstr, s, m-s);
4060 for (i = 1; i <= rx->nparens; i++) {
4064 dstr = NEWSV(33, m-s);
4065 sv_setpvn(dstr, s, m-s);
4068 dstr = NEWSV(33, 0);
4077 LEAVE_SCOPE(oldsave);
4078 iters = (SP - stack_base) - base;
4079 if (iters > maxiters)
4082 /* keep field after final delim? */
4083 if (s < strend || (iters && origlimit)) {
4084 dstr = NEWSV(34, strend-s);
4085 sv_setpvn(dstr, s, strend-s);
4091 else if (!origlimit) {
4092 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
4096 SWITCHSTACK(ary, oldstack);
4097 if (gimme == G_ARRAY) {
4099 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4105 if (gimme == G_ARRAY)
4108 if (iters || !pm->op_pmreplroot) {
4118 unlock_condpair(svv)
4122 MAGIC *mg = mg_find((SV*)svv, 'm');
4125 croak("panic: unlock_condpair unlocking non-mutex");
4126 MUTEX_LOCK(MgMUTEXP(mg));
4127 if (MgOWNER(mg) != thr)
4128 croak("panic: unlock_condpair unlocking mutex that we don't own");
4130 COND_SIGNAL(MgOWNERCONDP(mg));
4131 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: unlock 0x%lx\n",
4132 (unsigned long)thr, (unsigned long)svv);)
4133 MUTEX_UNLOCK(MgMUTEXP(mg));
4135 #endif /* USE_THREADS */
4147 mg = condpair_magic(sv);
4148 MUTEX_LOCK(MgMUTEXP(mg));
4149 if (MgOWNER(mg) == thr)
4150 MUTEX_UNLOCK(MgMUTEXP(mg));
4153 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
4155 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: pp_lock lock 0x%lx\n",
4156 (unsigned long)thr, (unsigned long)sv);)
4157 MUTEX_UNLOCK(MgMUTEXP(mg));
4158 save_destructor(unlock_condpair, sv);
4160 #endif /* USE_THREADS */