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 void unlock_condpair _((void*));
94 #endif /* USE_THREADS */
96 static bool srand_called = FALSE;
98 /* variations on pp_null */
103 if (GIMME_V == G_SCALAR)
118 if (op->op_private & OPpLVAL_INTRO)
119 SAVECLEARSV(curpad[op->op_targ]);
121 if (op->op_flags & OPf_REF) {
125 if (GIMME == G_ARRAY) {
126 I32 maxarg = AvFILL((AV*)TARG) + 1;
128 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
132 SV* sv = sv_newmortal();
133 I32 maxarg = AvFILL((AV*)TARG) + 1;
134 sv_setiv(sv, maxarg);
146 if (op->op_private & OPpLVAL_INTRO)
147 SAVECLEARSV(curpad[op->op_targ]);
148 if (op->op_flags & OPf_REF)
151 if (gimme == G_ARRAY) {
152 RETURNOP(do_kv(ARGS));
154 else if (gimme == G_SCALAR) {
155 SV* sv = sv_newmortal();
156 if (HvFILL((HV*)TARG))
157 sv_setpvf(sv, "%ld/%ld",
158 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG) + 1);
168 DIE("NOT IMPL LINE %d",__LINE__);
180 if (SvTYPE(sv) == SVt_PVIO) {
181 GV *gv = (GV*) sv_newmortal();
182 gv_init(gv, 0, "", 0, 0);
183 GvIOp(gv) = (IO *)sv;
186 } else if (SvTYPE(sv) != SVt_PVGV)
187 DIE("Not a GLOB reference");
190 if (SvTYPE(sv) != SVt_PVGV) {
193 if (SvGMAGICAL(sv)) {
199 if (op->op_flags & OPf_REF ||
200 op->op_private & HINT_STRICT_REFS)
201 DIE(no_usym, "a symbol");
207 if (op->op_private & HINT_STRICT_REFS)
208 DIE(no_symref, sym, "a symbol");
209 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
212 if (op->op_private & OPpLVAL_INTRO)
213 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
225 switch (SvTYPE(sv)) {
229 DIE("Not a SCALAR reference");
236 if (SvTYPE(gv) != SVt_PVGV) {
237 if (SvGMAGICAL(sv)) {
243 if (op->op_flags & OPf_REF ||
244 op->op_private & HINT_STRICT_REFS)
245 DIE(no_usym, "a SCALAR");
251 if (op->op_private & HINT_STRICT_REFS)
252 DIE(no_symref, sym, "a SCALAR");
253 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
257 if (op->op_flags & OPf_MOD) {
258 if (op->op_private & OPpLVAL_INTRO)
259 sv = save_scalar((GV*)TOPs);
260 else if (op->op_private & OPpDEREF)
261 vivify_ref(sv, op->op_private & OPpDEREF);
271 SV *sv = AvARYLEN(av);
273 AvARYLEN(av) = sv = NEWSV(0,0);
274 sv_upgrade(sv, SVt_IV);
275 sv_magic(sv, (SV*)av, '#', Nullch, 0);
283 dSP; dTARGET; dPOPss;
285 if (op->op_flags & OPf_MOD) {
286 if (SvTYPE(TARG) < SVt_PVLV) {
287 sv_upgrade(TARG, SVt_PVLV);
288 sv_magic(TARG, Nullsv, '.', Nullch, 0);
293 PUSHs(TARG); /* no SvSETMAGIC */
299 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
300 mg = mg_find(sv, 'g');
301 if (mg && mg->mg_len >= 0) {
302 PUSHi(mg->mg_len + curcop->cop_arybase);
316 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
317 /* (But not in defined().) */
318 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
321 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
338 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
340 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
348 CV* cv = (CV*)curpad[op->op_targ];
350 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
366 if (GIMME != G_ARRAY) {
370 EXTEND_MORTAL(SP - MARK);
372 *MARK = refto(*MARK);
382 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
385 if (!(sv = LvTARG(sv)))
388 else if (SvPADTMP(sv))
391 dTHR; /* just for SvREFCNT_inc */
393 (void)SvREFCNT_inc(sv);
396 sv_upgrade(rv, SVt_RV);
410 if (sv && SvGMAGICAL(sv))
413 if (!sv || !SvROK(sv))
417 pv = sv_reftype(sv,TRUE);
418 PUSHp(pv, strlen(pv));
428 stash = curcop->cop_stash;
430 stash = gv_stashsv(POPs, TRUE);
432 (void)sv_bless(TOPs, stash);
436 /* Pattern matching */
441 register unsigned char *s;
444 register I32 *sfirst;
448 if (sv == lastscream) {
454 SvSCREAM_off(lastscream);
455 SvREFCNT_dec(lastscream);
457 lastscream = SvREFCNT_inc(sv);
460 s = (unsigned char*)(SvPV(sv, len));
464 if (pos > maxscream) {
466 maxscream = pos + 80;
467 New(301, screamfirst, 256, I32);
468 New(302, screamnext, maxscream, I32);
471 maxscream = pos + pos / 4;
472 Renew(screamnext, maxscream, I32);
476 sfirst = screamfirst;
479 if (!sfirst || !snext)
480 DIE("do_study: out of memory");
482 for (ch = 256; ch; --ch)
489 snext[pos] = sfirst[ch] - pos;
496 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
505 if (op->op_flags & OPf_STACKED)
511 TARG = sv_newmortal();
512 PUSHi(do_trans(sv, op));
516 /* Lvalue operators. */
538 SETi(do_chomp(TOPs));
545 register I32 count = 0;
548 count += do_chomp(POPs);
559 if (!sv || !SvANY(sv))
561 switch (SvTYPE(sv)) {
563 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
567 if (HvARRAY(sv) || SvRMAGICAL(sv))
571 if (CvROOT(sv) || CvXSUB(sv))
588 if (!op->op_private) {
597 if (SvTHINKFIRST(sv)) {
604 switch (SvTYPE(sv)) {
614 if (cv_const_sv((CV*)sv))
615 warn("Constant subroutine %s undefined",
616 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
619 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
621 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
625 sv_setsv(sv, &sv_undef);
628 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
631 SvPV_set(sv, Nullch);
644 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
646 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
647 SvIVX(TOPs) != IV_MIN)
650 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
661 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
663 sv_setsv(TARG, TOPs);
664 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
665 SvIVX(TOPs) != IV_MAX)
668 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
682 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
684 sv_setsv(TARG, TOPs);
685 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
686 SvIVX(TOPs) != IV_MIN)
689 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
698 /* Ordinary operators. */
702 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
705 SETn( pow( left, right) );
712 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
715 SETn( left * right );
722 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
727 DIE("Illegal division by zero");
729 /* insure that 20./5. == 4. */
732 if ((double)I_V(left) == left &&
733 (double)I_V(right) == right &&
734 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
737 value = left / right;
741 value = left / right;
750 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
758 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
760 right = (right_neg = (i < 0)) ? -i : i;
764 right = U_V((right_neg = (n < 0)) ? -n : n);
767 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
769 left = (left_neg = (i < 0)) ? -i : i;
773 left = U_V((left_neg = (n < 0)) ? -n : n);
777 DIE("Illegal modulus zero");
780 if ((left_neg != right_neg) && ans)
783 if (ans <= -(UV)IV_MAX)
784 sv_setiv(TARG, (IV) -ans);
786 sv_setnv(TARG, -(double)ans);
797 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
799 register I32 count = POPi;
800 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
802 I32 items = SP - MARK;
814 repeatcpy((char*)(MARK + items), (char*)MARK,
815 items * sizeof(SV*), count - 1);
821 else { /* Note: mark already snarfed by pp_list */
826 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
827 if (SvREADONLY(tmpstr) && curcop != &compiling)
828 DIE("Can't x= to readonly value");
832 SvSetSV(TARG, tmpstr);
833 SvPV_force(TARG, len);
838 SvGROW(TARG, (count * len) + 1);
839 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
840 SvCUR(TARG) *= count;
844 (void)SvPOK_only(TARG);
853 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
856 SETn( left - right );
863 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
866 if (op->op_private & HINT_INTEGER) {
882 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
885 if (op->op_private & HINT_INTEGER) {
901 dSP; tryAMAGICbinSET(lt,0);
904 SETs(boolSV(TOPn < value));
911 dSP; tryAMAGICbinSET(gt,0);
914 SETs(boolSV(TOPn > value));
921 dSP; tryAMAGICbinSET(le,0);
924 SETs(boolSV(TOPn <= value));
931 dSP; tryAMAGICbinSET(ge,0);
934 SETs(boolSV(TOPn >= value));
941 dSP; tryAMAGICbinSET(ne,0);
944 SETs(boolSV(TOPn != value));
951 dSP; dTARGET; tryAMAGICbin(ncmp,0);
958 else if (left < right)
960 else if (left > right)
973 dSP; tryAMAGICbinSET(slt,0);
976 int cmp = ((op->op_private & OPpLOCALE)
977 ? sv_cmp_locale(left, right)
978 : sv_cmp(left, right));
979 SETs(boolSV(cmp < 0));
986 dSP; tryAMAGICbinSET(sgt,0);
989 int cmp = ((op->op_private & OPpLOCALE)
990 ? sv_cmp_locale(left, right)
991 : sv_cmp(left, right));
992 SETs(boolSV(cmp > 0));
999 dSP; tryAMAGICbinSET(sle,0);
1002 int cmp = ((op->op_private & OPpLOCALE)
1003 ? sv_cmp_locale(left, right)
1004 : sv_cmp(left, right));
1005 SETs(boolSV(cmp <= 0));
1012 dSP; tryAMAGICbinSET(sge,0);
1015 int cmp = ((op->op_private & OPpLOCALE)
1016 ? sv_cmp_locale(left, right)
1017 : sv_cmp(left, right));
1018 SETs(boolSV(cmp >= 0));
1025 dSP; tryAMAGICbinSET(seq,0);
1028 SETs(boolSV(sv_eq(left, right)));
1035 dSP; tryAMAGICbinSET(sne,0);
1038 SETs(boolSV(!sv_eq(left, right)));
1045 dSP; dTARGET; tryAMAGICbin(scmp,0);
1048 int cmp = ((op->op_private & OPpLOCALE)
1049 ? sv_cmp_locale(left, right)
1050 : sv_cmp(left, right));
1058 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
1061 if (SvNIOKp(left) || SvNIOKp(right)) {
1062 if (op->op_private & HINT_INTEGER) {
1063 IBW value = SvIV(left) & SvIV(right);
1067 UBW value = SvUV(left) & SvUV(right);
1072 do_vop(op->op_type, TARG, left, right);
1081 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1084 if (SvNIOKp(left) || SvNIOKp(right)) {
1085 if (op->op_private & HINT_INTEGER) {
1086 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1090 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1095 do_vop(op->op_type, TARG, left, right);
1104 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1107 if (SvNIOKp(left) || SvNIOKp(right)) {
1108 if (op->op_private & HINT_INTEGER) {
1109 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1113 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1118 do_vop(op->op_type, TARG, left, right);
1127 dSP; dTARGET; tryAMAGICun(neg);
1132 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1134 else if (SvNIOKp(sv))
1136 else if (SvPOKp(sv)) {
1138 char *s = SvPV(sv, len);
1139 if (isIDFIRST(*s)) {
1140 sv_setpvn(TARG, "-", 1);
1143 else if (*s == '+' || *s == '-') {
1145 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1148 sv_setnv(TARG, -SvNV(sv));
1160 dSP; tryAMAGICunSET(not);
1161 #endif /* OVERLOAD */
1162 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1168 dSP; dTARGET; tryAMAGICun(compl);
1172 if (op->op_private & HINT_INTEGER) {
1173 IBW value = ~SvIV(sv);
1177 UBW value = ~SvUV(sv);
1182 register char *tmps;
1183 register long *tmpl;
1188 tmps = SvPV_force(TARG, len);
1191 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1194 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1198 for ( ; anum > 0; anum--, tmps++)
1207 /* integer versions of some of the above */
1211 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1214 SETi( left * right );
1221 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1225 DIE("Illegal division by zero");
1226 value = POPi / value;
1234 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1238 DIE("Illegal modulus zero");
1239 SETi( left % right );
1246 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1249 SETi( left + right );
1256 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1259 SETi( left - right );
1266 dSP; tryAMAGICbinSET(lt,0);
1269 SETs(boolSV(left < right));
1276 dSP; tryAMAGICbinSET(gt,0);
1279 SETs(boolSV(left > right));
1286 dSP; tryAMAGICbinSET(le,0);
1289 SETs(boolSV(left <= right));
1296 dSP; tryAMAGICbinSET(ge,0);
1299 SETs(boolSV(left >= right));
1306 dSP; tryAMAGICbinSET(eq,0);
1309 SETs(boolSV(left == right));
1316 dSP; tryAMAGICbinSET(ne,0);
1319 SETs(boolSV(left != right));
1326 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1333 else if (left < right)
1344 dSP; dTARGET; tryAMAGICun(neg);
1349 /* High falutin' math. */
1353 dSP; dTARGET; tryAMAGICbin(atan2,0);
1356 SETn(atan2(left, right));
1363 dSP; dTARGET; tryAMAGICun(sin);
1375 dSP; dTARGET; tryAMAGICun(cos);
1395 if (!srand_called) {
1396 (void)srand((unsigned)seed());
1397 srand_called = TRUE;
1400 value = rand() * value / 2147483648.0;
1403 value = rand() * value / 65536.0;
1406 value = rand() * value / 32768.0;
1408 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1424 (void)srand((unsigned)anum);
1425 srand_called = TRUE;
1434 * This is really just a quick hack which grabs various garbage
1435 * values. It really should be a real hash algorithm which
1436 * spreads the effect of every input bit onto every output bit,
1437 * if someone who knows about such tings would bother to write it.
1438 * Might be a good idea to add that function to CORE as well.
1439 * No numbers below come from careful analysis or anyting here,
1440 * except they are primes and SEED_C1 > 1E6 to get a full-width
1441 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1442 * probably be bigger too.
1445 # define SEED_C1 1000003
1446 #define SEED_C4 73819
1448 # define SEED_C1 25747
1449 #define SEED_C4 20639
1453 #define SEED_C5 26107
1458 # include <starlet.h>
1459 /* when[] = (low 32 bits, high 32 bits) of time since epoch
1460 * in 100-ns units, typically incremented ever 10 ms. */
1461 unsigned int when[2];
1462 _ckvmssts(sys$gettim(when));
1463 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1465 # ifdef HAS_GETTIMEOFDAY
1466 struct timeval when;
1467 gettimeofday(&when,(struct timezone *) 0);
1468 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1472 u = (U32)SEED_C1 * when;
1475 u += SEED_C3 * (U32)getpid();
1476 u += SEED_C4 * (U32)(UV)stack_sp;
1477 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1478 u += SEED_C5 * (U32)(UV)&when;
1485 dSP; dTARGET; tryAMAGICun(exp);
1497 dSP; dTARGET; tryAMAGICun(log);
1502 SET_NUMERIC_STANDARD();
1503 DIE("Can't take log of %g", value);
1513 dSP; dTARGET; tryAMAGICun(sqrt);
1518 SET_NUMERIC_STANDARD();
1519 DIE("Can't take sqrt of %g", value);
1521 value = sqrt(value);
1531 double value = TOPn;
1534 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1540 (void)modf(value, &value);
1542 (void)modf(-value, &value);
1557 dSP; dTARGET; tryAMAGICun(abs);
1559 double value = TOPn;
1562 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1563 (iv = SvIVX(TOPs)) != IV_MIN) {
1584 XPUSHu(scan_hex(tmps, 99, &argtype));
1596 while (*tmps && isSPACE(*tmps))
1601 value = scan_hex(++tmps, 99, &argtype);
1603 value = scan_oct(tmps, 99, &argtype);
1613 SETi( sv_len(TOPs) );
1625 I32 lvalue = op->op_flags & OPf_MOD;
1627 I32 arybase = curcop->cop_arybase;
1631 pos = POPi - arybase;
1633 tmps = SvPV(sv, curlen);
1635 pos += curlen + arybase;
1636 if (pos < 0 && MAXARG < 3)
1639 if (pos < 0 || pos > curlen) {
1640 if (dowarn || lvalue)
1641 warn("substr outside of string");
1648 len += curlen - pos;
1653 rem = curlen - pos; /* rem=how many bytes left*/
1656 sv_setpvn(TARG, tmps, rem);
1657 if (lvalue) { /* it's an lvalue! */
1658 if (!SvGMAGICAL(sv)) {
1662 warn("Attempt to use reference as lvalue in substr");
1664 if (SvOK(sv)) /* is it defined ? */
1665 (void)SvPOK_only(sv);
1667 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1670 if (SvTYPE(TARG) < SVt_PVLV) {
1671 sv_upgrade(TARG, SVt_PVLV);
1672 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1677 LvTARGOFF(TARG) = pos;
1678 LvTARGLEN(TARG) = rem;
1681 PUSHs(TARG); /* avoid SvSETMAGIC here */
1688 register I32 size = POPi;
1689 register I32 offset = POPi;
1690 register SV *src = POPs;
1691 I32 lvalue = op->op_flags & OPf_MOD;
1693 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1694 unsigned long retnum;
1697 offset *= size; /* turn into bit offset */
1698 len = (offset + size + 7) / 8;
1699 if (offset < 0 || size < 1)
1702 if (lvalue) { /* it's an lvalue! */
1703 if (SvTYPE(TARG) < SVt_PVLV) {
1704 sv_upgrade(TARG, SVt_PVLV);
1705 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1710 LvTARGOFF(TARG) = offset;
1711 LvTARGLEN(TARG) = size;
1719 if (offset >= srclen)
1722 retnum = (unsigned long) s[offset] << 8;
1724 else if (size == 32) {
1725 if (offset >= srclen)
1727 else if (offset + 1 >= srclen)
1728 retnum = (unsigned long) s[offset] << 24;
1729 else if (offset + 2 >= srclen)
1730 retnum = ((unsigned long) s[offset] << 24) +
1731 ((unsigned long) s[offset + 1] << 16);
1733 retnum = ((unsigned long) s[offset] << 24) +
1734 ((unsigned long) s[offset + 1] << 16) +
1735 (s[offset + 2] << 8);
1740 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1745 else if (size == 16)
1746 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1747 else if (size == 32)
1748 retnum = ((unsigned long) s[offset] << 24) +
1749 ((unsigned long) s[offset + 1] << 16) +
1750 (s[offset + 2] << 8) + s[offset+3];
1754 sv_setiv(TARG, (IV)retnum);
1769 I32 arybase = curcop->cop_arybase;
1774 offset = POPi - arybase;
1777 tmps = SvPV(big, biglen);
1780 else if (offset > biglen)
1782 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1783 (unsigned char*)tmps + biglen, little)))
1784 retval = -1 + arybase;
1786 retval = tmps2 - tmps + arybase;
1803 I32 arybase = curcop->cop_arybase;
1809 tmps2 = SvPV(little, llen);
1810 tmps = SvPV(big, blen);
1814 offset = SvIV(offstr) - arybase + llen;
1817 else if (offset > blen)
1819 if (!(tmps2 = rninstr(tmps, tmps + offset,
1820 tmps2, tmps2 + llen)))
1821 retval = -1 + arybase;
1823 retval = tmps2 - tmps + arybase;
1830 dSP; dMARK; dORIGMARK; dTARGET;
1831 #ifdef USE_LOCALE_NUMERIC
1832 if (op->op_private & OPpLOCALE)
1833 SET_NUMERIC_LOCAL();
1835 SET_NUMERIC_STANDARD();
1837 do_sprintf(TARG, SP-MARK, MARK+1);
1838 TAINT_IF(SvTAINTED(TARG));
1852 value = (I32) (*tmps & 255);
1857 value = (I32) (anum & 255);
1868 (void)SvUPGRADE(TARG,SVt_PV);
1874 (void)SvPOK_only(TARG);
1881 dSP; dTARGET; dPOPTOPssrl;
1883 char *tmps = SvPV(left, na);
1885 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1887 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1891 "The crypt() function is unimplemented due to excessive paranoia.");
1903 if (!SvPADTMP(sv)) {
1909 s = SvPV_force(sv, na);
1911 if (op->op_private & OPpLOCALE) {
1914 *s = toUPPER_LC(*s);
1929 if (!SvPADTMP(sv)) {
1935 s = SvPV_force(sv, na);
1937 if (op->op_private & OPpLOCALE) {
1940 *s = toLOWER_LC(*s);
1957 if (!SvPADTMP(sv)) {
1964 s = SvPV_force(sv, len);
1966 register char *send = s + len;
1968 if (op->op_private & OPpLOCALE) {
1971 for (; s < send; s++)
1972 *s = toUPPER_LC(*s);
1975 for (; s < send; s++)
1989 if (!SvPADTMP(sv)) {
1996 s = SvPV_force(sv, len);
1998 register char *send = s + len;
2000 if (op->op_private & OPpLOCALE) {
2003 for (; s < send; s++)
2004 *s = toLOWER_LC(*s);
2007 for (; s < send; s++)
2019 register char *s = SvPV(sv,len);
2023 (void)SvUPGRADE(TARG, SVt_PV);
2024 SvGROW(TARG, (len * 2) + 1);
2032 SvCUR_set(TARG, d - SvPVX(TARG));
2033 (void)SvPOK_only(TARG);
2036 sv_setpvn(TARG, s, len);
2045 dSP; dMARK; dORIGMARK;
2047 register AV* av = (AV*)POPs;
2048 register I32 lval = op->op_flags & OPf_MOD;
2049 I32 arybase = curcop->cop_arybase;
2052 if (SvTYPE(av) == SVt_PVAV) {
2053 if (lval && op->op_private & OPpLVAL_INTRO) {
2055 for (svp = mark + 1; svp <= sp; svp++) {
2060 if (max > AvMAX(av))
2063 while (++MARK <= SP) {
2064 elem = SvIVx(*MARK);
2068 svp = av_fetch(av, elem, lval);
2070 if (!svp || *svp == &sv_undef)
2071 DIE(no_aelem, elem);
2072 if (op->op_private & OPpLVAL_INTRO)
2075 *MARK = svp ? *svp : &sv_undef;
2078 if (GIMME != G_ARRAY) {
2086 /* Associative arrays. */
2091 HV *hash = (HV*)POPs;
2093 I32 gimme = GIMME_V;
2094 I32 realhv = (SvTYPE(hash) == SVt_PVHV);
2097 /* might clobber stack_sp */
2098 entry = realhv ? hv_iternext(hash) : avhv_iternext((AV*)hash);
2103 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2104 if (gimme == G_ARRAY) {
2106 /* might clobber stack_sp */
2107 sv_setsv(TARG, realhv ?
2108 hv_iterval(hash, entry) : avhv_iterval((AV*)hash, entry));
2113 else if (gimme == G_SCALAR)
2132 I32 gimme = GIMME_V;
2133 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2137 if (op->op_private & OPpSLICE) {
2141 hvtype = SvTYPE(hv);
2142 while (++MARK <= SP) {
2143 if (hvtype == SVt_PVHV)
2144 sv = hv_delete_ent(hv, *MARK, discard, 0);
2145 else if (hvtype == SVt_PVAV)
2146 sv = avhv_delete_ent((AV*)hv, *MARK, discard, 0);
2148 DIE("Not a HASH reference");
2149 *MARK = sv ? sv : &sv_undef;
2153 else if (gimme == G_SCALAR) {
2162 if (SvTYPE(hv) == SVt_PVHV)
2163 sv = hv_delete_ent(hv, keysv, discard, 0);
2164 else if (SvTYPE(hv) == SVt_PVAV)
2165 sv = avhv_delete_ent((AV*)hv, keysv, discard, 0);
2167 DIE("Not a HASH reference");
2181 if (SvTYPE(hv) == SVt_PVHV) {
2182 if (hv_exists_ent(hv, tmpsv, 0))
2184 } else if (SvTYPE(hv) == SVt_PVAV) {
2185 if (avhv_exists_ent((AV*)hv, tmpsv, 0))
2188 DIE("Not a HASH reference");
2195 dSP; dMARK; dORIGMARK;
2197 register HV *hv = (HV*)POPs;
2198 register I32 lval = op->op_flags & OPf_MOD;
2199 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
2201 if (realhv || SvTYPE(hv) == SVt_PVAV) {
2202 while (++MARK <= SP) {
2206 he = hv_fetch_ent(hv, keysv, lval, 0);
2207 svp = he ? &HeVAL(he) : 0;
2209 svp = avhv_fetch_ent((AV*)hv, keysv, lval, 0);
2212 if (!he || HeVAL(he) == &sv_undef)
2213 DIE(no_helem, SvPV(keysv, na));
2214 if (op->op_private & OPpLVAL_INTRO)
2215 save_svref(&HeVAL(he));
2217 *MARK = he ? HeVAL(he) : &sv_undef;
2220 if (GIMME != G_ARRAY) {
2228 /* List operators. */
2233 if (GIMME != G_ARRAY) {
2235 *MARK = *SP; /* unwanted list, return last item */
2246 SV **lastrelem = stack_sp;
2247 SV **lastlelem = stack_base + POPMARK;
2248 SV **firstlelem = stack_base + POPMARK + 1;
2249 register SV **firstrelem = lastlelem + 1;
2250 I32 arybase = curcop->cop_arybase;
2251 I32 lval = op->op_flags & OPf_MOD;
2252 I32 is_something_there = lval;
2254 register I32 max = lastrelem - lastlelem;
2255 register SV **lelem;
2258 if (GIMME != G_ARRAY) {
2259 ix = SvIVx(*lastlelem);
2264 if (ix < 0 || ix >= max)
2265 *firstlelem = &sv_undef;
2267 *firstlelem = firstrelem[ix];
2273 SP = firstlelem - 1;
2277 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2283 else if (!(*lelem = firstrelem[ix]))
2288 if (ix >= max || !(*lelem = firstrelem[ix]))
2291 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2292 is_something_there = TRUE;
2294 if (is_something_there)
2297 SP = firstlelem - 1;
2303 dSP; dMARK; dORIGMARK;
2304 I32 items = SP - MARK;
2305 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2306 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2313 dSP; dMARK; dORIGMARK;
2314 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2318 SV *val = NEWSV(46, 0);
2320 sv_setsv(val, *++MARK);
2322 warn("Odd number of elements in hash list");
2323 (void)hv_store_ent(hv,key,val,0);
2332 dSP; dMARK; dORIGMARK;
2333 register AV *ary = (AV*)*++MARK;
2337 register I32 offset;
2338 register I32 length;
2347 offset = SvIVx(*MARK);
2349 offset += AvFILL(ary) + 1;
2351 offset -= curcop->cop_arybase;
2353 length = SvIVx(*MARK++);
2358 length = AvMAX(ary) + 1; /* close enough to infinity */
2362 length = AvMAX(ary) + 1;
2370 if (offset > AvFILL(ary) + 1)
2371 offset = AvFILL(ary) + 1;
2372 after = AvFILL(ary) + 1 - (offset + length);
2373 if (after < 0) { /* not that much array */
2374 length += after; /* offset+length now in array */
2380 /* At this point, MARK .. SP-1 is our new LIST */
2383 diff = newlen - length;
2385 if (diff < 0) { /* shrinking the area */
2387 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2388 Copy(MARK, tmparyval, newlen, SV*);
2391 MARK = ORIGMARK + 1;
2392 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2393 MEXTEND(MARK, length);
2394 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2396 EXTEND_MORTAL(length);
2397 for (i = length, dst = MARK; i; i--) {
2398 if (!SvIMMORTAL(*dst))
2399 sv_2mortal(*dst); /* free them eventualy */
2406 *MARK = AvARRAY(ary)[offset+length-1];
2408 if (!SvIMMORTAL(*MARK))
2410 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2411 SvREFCNT_dec(*dst++); /* free them now */
2414 AvFILL(ary) += diff;
2416 /* pull up or down? */
2418 if (offset < after) { /* easier to pull up */
2419 if (offset) { /* esp. if nothing to pull */
2420 src = &AvARRAY(ary)[offset-1];
2421 dst = src - diff; /* diff is negative */
2422 for (i = offset; i > 0; i--) /* can't trust Copy */
2426 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2430 if (after) { /* anything to pull down? */
2431 src = AvARRAY(ary) + offset + length;
2432 dst = src + diff; /* diff is negative */
2433 Move(src, dst, after, SV*);
2435 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2436 /* avoid later double free */
2440 dst[--i] = &sv_undef;
2443 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2445 *dst = NEWSV(46, 0);
2446 sv_setsv(*dst++, *src++);
2448 Safefree(tmparyval);
2451 else { /* no, expanding (or same) */
2453 New(452, tmparyval, length, SV*); /* so remember deletion */
2454 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2457 if (diff > 0) { /* expanding */
2459 /* push up or down? */
2461 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2465 Move(src, dst, offset, SV*);
2467 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2469 AvFILL(ary) += diff;
2472 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2473 av_extend(ary, AvFILL(ary) + diff);
2474 AvFILL(ary) += diff;
2477 dst = AvARRAY(ary) + AvFILL(ary);
2479 for (i = after; i; i--) {
2486 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2487 *dst = NEWSV(46, 0);
2488 sv_setsv(*dst++, *src++);
2490 MARK = ORIGMARK + 1;
2491 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2493 Copy(tmparyval, MARK, length, SV*);
2495 EXTEND_MORTAL(length);
2496 for (i = length, dst = MARK; i; i--) {
2497 if (!SvIMMORTAL(*dst))
2498 sv_2mortal(*dst); /* free them eventualy */
2502 Safefree(tmparyval);
2506 else if (length--) {
2507 *MARK = tmparyval[length];
2509 if (!SvIMMORTAL(*MARK))
2511 while (length-- > 0)
2512 SvREFCNT_dec(tmparyval[length]);
2514 Safefree(tmparyval);
2525 dSP; dMARK; dORIGMARK; dTARGET;
2526 register AV *ary = (AV*)*++MARK;
2527 register SV *sv = &sv_undef;
2529 for (++MARK; MARK <= SP; MARK++) {
2532 sv_setsv(sv, *MARK);
2536 PUSHi( AvFILL(ary) + 1 );
2544 SV *sv = av_pop(av);
2545 if (!SvIMMORTAL(sv) && AvREAL(av))
2546 (void)sv_2mortal(sv);
2555 SV *sv = av_shift(av);
2559 if (!SvIMMORTAL(sv) && AvREAL(av))
2560 (void)sv_2mortal(sv);
2567 dSP; dMARK; dORIGMARK; dTARGET;
2568 register AV *ary = (AV*)*++MARK;
2572 av_unshift(ary, SP - MARK);
2575 sv_setsv(sv, *++MARK);
2576 (void)av_store(ary, i++, sv);
2580 PUSHi( AvFILL(ary) + 1 );
2590 if (GIMME == G_ARRAY) {
2601 register char *down;
2607 do_join(TARG, &sv_no, MARK, SP);
2609 sv_setsv(TARG, (SP > MARK) ? *SP : GvSV(defgv));
2610 up = SvPV_force(TARG, len);
2612 down = SvPVX(TARG) + len - 1;
2618 (void)SvPOK_only(TARG);
2632 char *s = SvPV(sv, len);
2636 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2637 SV *new = newSVpv("0000000000", 10);
2640 SvREFCNT_dec(sv); /* free old sv */
2645 while (!*t) /* trailing '\0'? */
2648 i = ((*t - '0') << 7) + m;
2649 *(t--) = '0' + (i % 10);
2655 /* Explosives and implosives. */
2662 I32 gimme = GIMME_V;
2666 register char *pat = SvPV(left, llen);
2667 register char *s = SvPV(right, rlen);
2668 char *strend = s + rlen;
2670 register char *patend = pat + llen;
2675 /* These must not be in registers: */
2686 unsigned Quad_t auquad;
2692 register U32 culong;
2694 static char* bitcount = 0;
2696 if (gimme != G_ARRAY) { /* arrange to do first one only */
2698 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2699 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2701 while (isDIGIT(*patend) || *patend == '*')
2707 while (pat < patend) {
2709 datumtype = *pat++ & 0xFF;
2710 if (isSPACE(datumtype))
2714 else if (*pat == '*') {
2715 len = strend - strbeg; /* long enough */
2718 else if (isDIGIT(*pat)) {
2720 while (isDIGIT(*pat))
2721 len = (len * 10) + (*pat++ - '0');
2724 len = (datumtype != '@');
2727 croak("Invalid type in unpack: '%c'", (int)datumtype);
2729 if (len == 1 && pat[-1] != '1')
2738 if (len > strend - strbeg)
2739 DIE("@ outside of string");
2743 if (len > s - strbeg)
2744 DIE("X outside of string");
2748 if (len > strend - s)
2749 DIE("x outside of string");
2754 if (len > strend - s)
2757 goto uchar_checksum;
2758 sv = NEWSV(35, len);
2759 sv_setpvn(sv, s, len);
2761 if (datumtype == 'A') {
2762 aptr = s; /* borrow register */
2763 s = SvPVX(sv) + len - 1;
2764 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2767 SvCUR_set(sv, s - SvPVX(sv));
2768 s = aptr; /* unborrow register */
2770 XPUSHs(sv_2mortal(sv));
2774 if (pat[-1] == '*' || len > (strend - s) * 8)
2775 len = (strend - s) * 8;
2778 Newz(601, bitcount, 256, char);
2779 for (bits = 1; bits < 256; bits++) {
2780 if (bits & 1) bitcount[bits]++;
2781 if (bits & 2) bitcount[bits]++;
2782 if (bits & 4) bitcount[bits]++;
2783 if (bits & 8) bitcount[bits]++;
2784 if (bits & 16) bitcount[bits]++;
2785 if (bits & 32) bitcount[bits]++;
2786 if (bits & 64) bitcount[bits]++;
2787 if (bits & 128) bitcount[bits]++;
2791 culong += bitcount[*(unsigned char*)s++];
2796 if (datumtype == 'b') {
2798 if (bits & 1) culong++;
2804 if (bits & 128) culong++;
2811 sv = NEWSV(35, len + 1);
2814 aptr = pat; /* borrow register */
2816 if (datumtype == 'b') {
2818 for (len = 0; len < aint; len++) {
2819 if (len & 7) /*SUPPRESS 595*/
2823 *pat++ = '0' + (bits & 1);
2828 for (len = 0; len < aint; len++) {
2833 *pat++ = '0' + ((bits & 128) != 0);
2837 pat = aptr; /* unborrow register */
2838 XPUSHs(sv_2mortal(sv));
2842 if (pat[-1] == '*' || len > (strend - s) * 2)
2843 len = (strend - s) * 2;
2844 sv = NEWSV(35, len + 1);
2847 aptr = pat; /* borrow register */
2849 if (datumtype == 'h') {
2851 for (len = 0; len < aint; len++) {
2856 *pat++ = hexdigit[bits & 15];
2861 for (len = 0; len < aint; len++) {
2866 *pat++ = hexdigit[(bits >> 4) & 15];
2870 pat = aptr; /* unborrow register */
2871 XPUSHs(sv_2mortal(sv));
2874 if (len > strend - s)
2879 if (aint >= 128) /* fake up signed chars */
2889 if (aint >= 128) /* fake up signed chars */
2892 sv_setiv(sv, (IV)aint);
2893 PUSHs(sv_2mortal(sv));
2898 if (len > strend - s)
2913 sv_setiv(sv, (IV)auint);
2914 PUSHs(sv_2mortal(sv));
2919 along = (strend - s) / SIZE16;
2936 sv_setiv(sv, (IV)ashort);
2937 PUSHs(sv_2mortal(sv));
2944 along = (strend - s) / SIZE16;
2949 COPY16(s, &aushort);
2952 if (datumtype == 'n')
2953 aushort = ntohs(aushort);
2956 if (datumtype == 'v')
2957 aushort = vtohs(aushort);
2966 COPY16(s, &aushort);
2970 if (datumtype == 'n')
2971 aushort = ntohs(aushort);
2974 if (datumtype == 'v')
2975 aushort = vtohs(aushort);
2977 sv_setiv(sv, (IV)aushort);
2978 PUSHs(sv_2mortal(sv));
2983 along = (strend - s) / sizeof(int);
2988 Copy(s, &aint, 1, int);
2991 cdouble += (double)aint;
3000 Copy(s, &aint, 1, int);
3003 sv_setiv(sv, (IV)aint);
3004 PUSHs(sv_2mortal(sv));
3009 along = (strend - s) / sizeof(unsigned int);
3014 Copy(s, &auint, 1, unsigned int);
3015 s += sizeof(unsigned int);
3017 cdouble += (double)auint;
3026 Copy(s, &auint, 1, unsigned int);
3027 s += sizeof(unsigned int);
3029 sv_setuv(sv, (UV)auint);
3030 PUSHs(sv_2mortal(sv));
3035 along = (strend - s) / SIZE32;
3043 cdouble += (double)along;
3055 sv_setiv(sv, (IV)along);
3056 PUSHs(sv_2mortal(sv));
3063 along = (strend - s) / SIZE32;
3071 if (datumtype == 'N')
3072 aulong = ntohl(aulong);
3075 if (datumtype == 'V')
3076 aulong = vtohl(aulong);
3079 cdouble += (double)aulong;
3091 if (datumtype == 'N')
3092 aulong = ntohl(aulong);
3095 if (datumtype == 'V')
3096 aulong = vtohl(aulong);
3099 sv_setuv(sv, (UV)aulong);
3100 PUSHs(sv_2mortal(sv));
3105 along = (strend - s) / sizeof(char*);
3111 if (sizeof(char*) > strend - s)
3114 Copy(s, &aptr, 1, char*);
3120 PUSHs(sv_2mortal(sv));
3130 while ((len > 0) && (s < strend)) {
3131 auv = (auv << 7) | (*s & 0x7f);
3132 if (!(*s++ & 0x80)) {
3136 PUSHs(sv_2mortal(sv));
3140 else if (++bytes >= sizeof(UV)) { /* promote to string */
3143 sv = newSVpvf("%.*Vu", (int)TYPE_DIGITS(UV), auv);
3144 while (s < strend) {
3145 sv = mul128(sv, *s & 0x7f);
3146 if (!(*s++ & 0x80)) {
3155 PUSHs(sv_2mortal(sv));
3160 if ((s >= strend) && bytes)
3161 croak("Unterminated compressed integer");
3166 if (sizeof(char*) > strend - s)
3169 Copy(s, &aptr, 1, char*);
3174 sv_setpvn(sv, aptr, len);
3175 PUSHs(sv_2mortal(sv));
3182 if (s + sizeof(Quad_t) > strend)
3185 Copy(s, &aquad, 1, Quad_t);
3186 s += sizeof(Quad_t);
3189 if (aquad >= IV_MIN && aquad <= IV_MAX)
3190 sv_setiv(sv, (IV)aquad);
3192 sv_setnv(sv, (double)aquad);
3193 PUSHs(sv_2mortal(sv));
3200 if (s + sizeof(unsigned Quad_t) > strend)
3203 Copy(s, &auquad, 1, unsigned Quad_t);
3204 s += sizeof(unsigned Quad_t);
3207 if (aquad <= UV_MAX)
3208 sv_setuv(sv, (UV)auquad);
3210 sv_setnv(sv, (double)auquad);
3211 PUSHs(sv_2mortal(sv));
3215 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3218 along = (strend - s) / sizeof(float);
3223 Copy(s, &afloat, 1, float);
3232 Copy(s, &afloat, 1, float);
3235 sv_setnv(sv, (double)afloat);
3236 PUSHs(sv_2mortal(sv));
3242 along = (strend - s) / sizeof(double);
3247 Copy(s, &adouble, 1, double);
3248 s += sizeof(double);
3256 Copy(s, &adouble, 1, double);
3257 s += sizeof(double);
3259 sv_setnv(sv, (double)adouble);
3260 PUSHs(sv_2mortal(sv));
3265 along = (strend - s) * 3 / 4;
3266 sv = NEWSV(42, along);
3269 while (s < strend && *s > ' ' && *s < 'a') {
3274 len = (*s++ - ' ') & 077;
3276 if (s < strend && *s >= ' ')
3277 a = (*s++ - ' ') & 077;
3280 if (s < strend && *s >= ' ')
3281 b = (*s++ - ' ') & 077;
3284 if (s < strend && *s >= ' ')
3285 c = (*s++ - ' ') & 077;
3288 if (s < strend && *s >= ' ')
3289 d = (*s++ - ' ') & 077;
3292 hunk[0] = a << 2 | b >> 4;
3293 hunk[1] = b << 4 | c >> 2;
3294 hunk[2] = c << 6 | d;
3295 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3300 else if (s[1] == '\n') /* possible checksum byte */
3303 XPUSHs(sv_2mortal(sv));
3308 if (strchr("fFdD", datumtype) ||
3309 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3313 while (checksum >= 16) {
3317 while (checksum >= 4) {
3323 along = (1 << checksum) - 1;
3324 while (cdouble < 0.0)
3326 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3327 sv_setnv(sv, cdouble);
3330 if (checksum < 32) {
3331 aulong = (1 << checksum) - 1;
3334 sv_setuv(sv, (UV)culong);
3336 XPUSHs(sv_2mortal(sv));
3340 if (sp == oldsp && gimme == G_SCALAR)
3346 doencodes(sv, s, len)
3354 sv_catpvn(sv, hunk, 1);
3357 hunk[0] = ' ' + (077 & (*s >> 2));
3358 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3359 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3360 hunk[3] = ' ' + (077 & (s[2] & 077));
3361 sv_catpvn(sv, hunk, 4);
3365 for (s = SvPVX(sv); *s; s++) {
3369 sv_catpvn(sv, "\n", 1);
3377 SV *result = newSVpv("", l);
3378 char *result_c = SvPV(result, na); /* convenience */
3379 char *out = result_c;
3389 SvREFCNT_dec(result);
3412 SvREFCNT_dec(result);
3418 SvCUR_set(result, out - result_c);
3424 SV *pnum; /* must be '\0' terminated */
3428 char *s = SvPV(pnum, len);
3437 i = m * 10 + (*t - '0');
3439 r = (i >> 7); /* r < 10 */
3446 SvCUR_set(pnum, (STRLEN) (t - s));
3453 dSP; dMARK; dORIGMARK; dTARGET;
3454 register SV *cat = TARG;
3457 register char *pat = SvPVx(*++MARK, fromlen);
3458 register char *patend = pat + fromlen;
3463 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3464 static char *space10 = " ";
3466 /* These must not be in registers: */
3475 unsigned Quad_t auquad;
3483 sv_setpvn(cat, "", 0);
3484 while (pat < patend) {
3485 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3486 datumtype = *pat++ & 0xFF;
3487 if (isSPACE(datumtype))
3490 len = strchr("@Xxu", datumtype) ? 0 : items;
3493 else if (isDIGIT(*pat)) {
3495 while (isDIGIT(*pat))
3496 len = (len * 10) + (*pat++ - '0');
3502 croak("Invalid type in pack: '%c'", (int)datumtype);
3504 DIE("%% may only be used in unpack");
3515 if (SvCUR(cat) < len)
3516 DIE("X outside of string");
3523 sv_catpvn(cat, null10, 10);
3526 sv_catpvn(cat, null10, len);
3531 aptr = SvPV(fromstr, fromlen);
3535 sv_catpvn(cat, aptr, len);
3537 sv_catpvn(cat, aptr, fromlen);
3539 if (datumtype == 'A') {
3541 sv_catpvn(cat, space10, 10);
3544 sv_catpvn(cat, space10, len);
3548 sv_catpvn(cat, null10, 10);
3551 sv_catpvn(cat, null10, len);
3558 char *savepat = pat;
3563 aptr = SvPV(fromstr, fromlen);
3568 SvCUR(cat) += (len+7)/8;
3569 SvGROW(cat, SvCUR(cat) + 1);
3570 aptr = SvPVX(cat) + aint;
3575 if (datumtype == 'B') {
3576 for (len = 0; len++ < aint;) {
3577 items |= *pat++ & 1;
3581 *aptr++ = items & 0xff;
3587 for (len = 0; len++ < aint;) {
3593 *aptr++ = items & 0xff;
3599 if (datumtype == 'B')
3600 items <<= 7 - (aint & 7);
3602 items >>= 7 - (aint & 7);
3603 *aptr++ = items & 0xff;
3605 pat = SvPVX(cat) + SvCUR(cat);
3616 char *savepat = pat;
3621 aptr = SvPV(fromstr, fromlen);
3626 SvCUR(cat) += (len+1)/2;
3627 SvGROW(cat, SvCUR(cat) + 1);
3628 aptr = SvPVX(cat) + aint;
3633 if (datumtype == 'H') {
3634 for (len = 0; len++ < aint;) {
3636 items |= ((*pat++ & 15) + 9) & 15;
3638 items |= *pat++ & 15;
3642 *aptr++ = items & 0xff;
3648 for (len = 0; len++ < aint;) {
3650 items |= (((*pat++ & 15) + 9) & 15) << 4;
3652 items |= (*pat++ & 15) << 4;
3656 *aptr++ = items & 0xff;
3662 *aptr++ = items & 0xff;
3663 pat = SvPVX(cat) + SvCUR(cat);
3675 aint = SvIV(fromstr);
3677 sv_catpvn(cat, &achar, sizeof(char));
3680 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3685 afloat = (float)SvNV(fromstr);
3686 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3693 adouble = (double)SvNV(fromstr);
3694 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3700 ashort = (I16)SvIV(fromstr);
3702 ashort = htons(ashort);
3704 CAT16(cat, &ashort);
3710 ashort = (I16)SvIV(fromstr);
3712 ashort = htovs(ashort);
3714 CAT16(cat, &ashort);
3721 ashort = (I16)SvIV(fromstr);
3722 CAT16(cat, &ashort);
3728 auint = SvUV(fromstr);
3729 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3735 adouble = floor(SvNV(fromstr));
3738 croak("Cannot compress negative numbers");
3748 char buf[1 + sizeof(UV)];
3749 char *in = buf + sizeof(buf);
3750 UV auv = U_V(adouble);;
3753 *--in = (auv & 0x7f) | 0x80;
3756 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3757 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3759 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3760 char *from, *result, *in;
3765 /* Copy string and check for compliance */
3766 from = SvPV(fromstr, len);
3767 if ((norm = is_an_int(from, len)) == NULL)
3768 croak("can compress only unsigned integer");
3770 New('w', result, len, char);
3774 *--in = div128(norm, &done) | 0x80;
3775 result[len - 1] &= 0x7F; /* clear continue bit */
3776 sv_catpvn(cat, in, (result + len) - in);
3778 SvREFCNT_dec(norm); /* free norm */
3780 else if (SvNOKp(fromstr)) {
3781 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3782 char *in = buf + sizeof(buf);
3785 double next = floor(adouble / 128);
3786 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3787 if (--in < buf) /* this cannot happen ;-) */
3788 croak ("Cannot compress integer");
3790 } while (adouble > 0);
3791 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3792 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3795 croak("Cannot compress non integer");
3801 aint = SvIV(fromstr);
3802 sv_catpvn(cat, (char*)&aint, sizeof(int));
3808 aulong = SvUV(fromstr);
3810 aulong = htonl(aulong);
3812 CAT32(cat, &aulong);
3818 aulong = SvUV(fromstr);
3820 aulong = htovl(aulong);
3822 CAT32(cat, &aulong);
3828 aulong = SvUV(fromstr);
3829 CAT32(cat, &aulong);
3835 along = SvIV(fromstr);
3843 auquad = (unsigned Quad_t)SvIV(fromstr);
3844 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3850 aquad = (Quad_t)SvIV(fromstr);
3851 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3854 #endif /* HAS_QUAD */
3856 len = 1; /* assume SV is correct length */
3861 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3862 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3867 aptr = SvPV(fromstr, fromlen);
3868 SvGROW(cat, fromlen * 4 / 3);
3873 while (fromlen > 0) {
3880 doencodes(cat, aptr, todo);
3898 register I32 limit = POPi; /* note, negative is forever */
3901 register char *s = SvPV(sv, len);
3902 char *strend = s + len;
3904 register REGEXP *rx;
3908 I32 maxiters = (strend - s) + 10;
3911 I32 origlimit = limit;
3914 AV *oldstack = curstack;
3915 I32 gimme = GIMME_V;
3916 I32 oldsave = savestack_ix;
3919 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3924 DIE("panic: do_split");
3925 rx = pm->op_pmregexp;
3927 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3928 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3930 if (pm->op_pmreplroot)
3931 ary = GvAVn((GV*)pm->op_pmreplroot);
3932 else if (gimme != G_ARRAY)
3934 ary = (AV*)curpad[0];
3937 #endif /* USE_THREADS */
3940 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3944 for (i = AvFILL(ary); i >= 0; i--)
3945 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3949 /* temporarily switch stacks */
3950 SWITCHSTACK(curstack, ary);
3952 base = SP - stack_base;
3954 if (pm->op_pmflags & PMf_SKIPWHITE) {
3955 if (pm->op_pmflags & PMf_LOCALE) {
3956 while (isSPACE_LC(*s))
3964 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3966 multiline = pm->op_pmflags & PMf_MULTILINE;
3970 limit = maxiters + 2;
3971 if (pm->op_pmflags & PMf_WHITE) {
3974 while (m < strend &&
3975 !((pm->op_pmflags & PMf_LOCALE)
3976 ? isSPACE_LC(*m) : isSPACE(*m)))
3981 dstr = NEWSV(30, m-s);
3982 sv_setpvn(dstr, s, m-s);
3988 while (s < strend &&
3989 ((pm->op_pmflags & PMf_LOCALE)
3990 ? isSPACE_LC(*s) : isSPACE(*s)))
3994 else if (strEQ("^", rx->precomp)) {
3997 for (m = s; m < strend && *m != '\n'; m++) ;
4001 dstr = NEWSV(30, m-s);
4002 sv_setpvn(dstr, s, m-s);
4009 else if (pm->op_pmshort && !rx->nparens) {
4010 i = SvCUR(pm->op_pmshort);
4012 i = *SvPVX(pm->op_pmshort);
4015 for (m = s; m < strend && *m != i; m++) ;
4018 dstr = NEWSV(30, m-s);
4019 sv_setpvn(dstr, s, m-s);
4028 while (s < strend && --limit &&
4029 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
4033 dstr = NEWSV(31, m-s);
4034 sv_setpvn(dstr, s, m-s);
4043 maxiters += (strend - s) * rx->nparens;
4044 while (s < strend && --limit &&
4045 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
4047 TAINT_IF(rx->exec_tainted);
4049 && rx->subbase != orig) {
4054 strend = s + (strend - m);
4057 dstr = NEWSV(32, m-s);
4058 sv_setpvn(dstr, s, m-s);
4063 for (i = 1; i <= rx->nparens; i++) {
4067 dstr = NEWSV(33, m-s);
4068 sv_setpvn(dstr, s, m-s);
4071 dstr = NEWSV(33, 0);
4080 LEAVE_SCOPE(oldsave);
4081 iters = (SP - stack_base) - base;
4082 if (iters > maxiters)
4085 /* keep field after final delim? */
4086 if (s < strend || (iters && origlimit)) {
4087 dstr = NEWSV(34, strend-s);
4088 sv_setpvn(dstr, s, strend-s);
4094 else if (!origlimit) {
4095 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
4099 SWITCHSTACK(ary, oldstack);
4100 if (gimme == G_ARRAY) {
4102 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4108 if (gimme == G_ARRAY)
4111 if (iters || !pm->op_pmreplroot) {
4121 unlock_condpair(svv)
4125 MAGIC *mg = mg_find((SV*)svv, 'm');
4128 croak("panic: unlock_condpair unlocking non-mutex");
4129 MUTEX_LOCK(MgMUTEXP(mg));
4130 if (MgOWNER(mg) != thr)
4131 croak("panic: unlock_condpair unlocking mutex that we don't own");
4133 COND_SIGNAL(MgOWNERCONDP(mg));
4134 MUTEX_UNLOCK(MgMUTEXP(mg));
4136 #endif /* USE_THREADS */
4148 mg = condpair_magic(sv);
4149 MUTEX_LOCK(MgMUTEXP(mg));
4150 if (MgOWNER(mg) == thr)
4151 MUTEX_UNLOCK(MgMUTEXP(mg));
4154 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
4156 MUTEX_UNLOCK(MgMUTEXP(mg));
4157 save_destructor(unlock_condpair, sv);
4159 #endif /* USE_THREADS */