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 * The compiler on Concurrent CX/UX systems has a subtle bug which only
20 * seems to show up when compiling pp.c - it generates the wrong double
21 * precision constant value for (double)UV_MAX when used inline in the body
22 * of the code below, so this makes a static variable up front (which the
23 * compiler seems to get correct) and uses it in place of UV_MAX below.
25 #ifdef CXUX_BROKEN_CONSTANT_CONVERT
26 static double UV_MAX_cxux = ((double)UV_MAX);
32 extern "C" char *fcrypt(char *,char *);
34 extern "C" char *crypt(char *,char *);
40 * Types used in bitwise operations.
42 * Normally we'd just use IV and UV. However, some hardware and
43 * software combinations (e.g. Alpha and current OSF/1) don't have a
44 * floating-point type to use for NV that has adequate bits to fully
45 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
47 * It just so happens that "int" is the right size almost everywhere.
53 * Mask used after bitwise operations.
55 * There is at least one realm (Cray word machines) that doesn't
56 * have an integral type (except char) small enough to be represented
57 * in a double without loss; that is, it has no 32-bit type.
59 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
61 # define BW_MASK ((1 << BW_BITS) - 1)
62 # define BW_SIGN (1 << (BW_BITS - 1))
63 # define BWi(i) (((i) & BW_SIGN) ? ((i) | ~BW_MASK) : ((i) & BW_MASK))
64 # define BWu(u) ((u) & BW_MASK)
71 * Offset for integer pack/unpack.
73 * On architectures where I16 and I32 aren't really 16 and 32 bits,
74 * which for now are all Crays, pack and unpack have to play games.
78 * These values are required for portability of pack() output.
79 * If they're not right on your machine, then pack() and unpack()
80 * wouldn't work right anyway; you'll need to apply the Cray hack.
81 * (I'd like to check them with #if, but you can't use sizeof() in
87 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
88 # if BYTEORDER == 0x12345678
89 # define OFF16(p) (char*)(p)
90 # define OFF32(p) (char*)(p)
92 # if BYTEORDER == 0x87654321
93 # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16))
94 # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32))
96 }}}} bad cray byte order
99 # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char))
100 # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char))
101 # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16)
102 # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32)
104 # define COPY16(s,p) Copy(s, p, SIZE16, char)
105 # define COPY32(s,p) Copy(s, p, SIZE32, char)
106 # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16)
107 # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32)
110 static void doencodes _((SV* sv, char* s, I32 len));
111 static SV* refto _((SV* sv));
112 static U32 seed _((void));
114 static bool srand_called = FALSE;
116 /* variations on pp_null */
118 #ifdef DONT_DECLARE_STD
123 extern pid_t getpid (void);
129 if (GIMME_V == G_SCALAR)
144 if (op->op_private & OPpLVAL_INTRO)
145 SAVECLEARSV(curpad[op->op_targ]);
147 if (op->op_flags & OPf_REF) {
151 if (GIMME == G_ARRAY) {
152 I32 maxarg = AvFILL((AV*)TARG) + 1;
154 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
158 SV* sv = sv_newmortal();
159 I32 maxarg = AvFILL((AV*)TARG) + 1;
160 sv_setiv(sv, maxarg);
172 if (op->op_private & OPpLVAL_INTRO)
173 SAVECLEARSV(curpad[op->op_targ]);
174 if (op->op_flags & OPf_REF)
177 if (gimme == G_ARRAY) {
178 RETURNOP(do_kv(ARGS));
180 else if (gimme == G_SCALAR) {
181 SV* sv = sv_newmortal();
182 if (HvFILL((HV*)TARG))
183 sv_setpvf(sv, "%ld/%ld",
184 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG) + 1);
194 DIE("NOT IMPL LINE %d",__LINE__);
206 if (SvTYPE(sv) == SVt_PVIO) {
207 GV *gv = (GV*) sv_newmortal();
208 gv_init(gv, 0, "", 0, 0);
209 GvIOp(gv) = (IO *)sv;
210 (void)SvREFCNT_inc(sv);
212 } else if (SvTYPE(sv) != SVt_PVGV)
213 DIE("Not a GLOB reference");
216 if (SvTYPE(sv) != SVt_PVGV) {
219 if (SvGMAGICAL(sv)) {
225 if (op->op_flags & OPf_REF ||
226 op->op_private & HINT_STRICT_REFS)
227 DIE(no_usym, "a symbol");
233 if (op->op_private & HINT_STRICT_REFS)
234 DIE(no_symref, sym, "a symbol");
235 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
238 if (op->op_private & OPpLVAL_INTRO)
239 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
251 switch (SvTYPE(sv)) {
255 DIE("Not a SCALAR reference");
262 if (SvTYPE(gv) != SVt_PVGV) {
263 if (SvGMAGICAL(sv)) {
269 if (op->op_flags & OPf_REF ||
270 op->op_private & HINT_STRICT_REFS)
271 DIE(no_usym, "a SCALAR");
277 if (op->op_private & HINT_STRICT_REFS)
278 DIE(no_symref, sym, "a SCALAR");
279 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
283 if (op->op_flags & OPf_MOD) {
284 if (op->op_private & OPpLVAL_INTRO)
285 sv = save_scalar((GV*)TOPs);
286 else if (op->op_private & OPpDEREF)
287 vivify_ref(sv, op->op_private & OPpDEREF);
297 SV *sv = AvARYLEN(av);
299 AvARYLEN(av) = sv = NEWSV(0,0);
300 sv_upgrade(sv, SVt_IV);
301 sv_magic(sv, (SV*)av, '#', Nullch, 0);
309 dSP; dTARGET; dPOPss;
311 if (op->op_flags & OPf_MOD) {
312 if (SvTYPE(TARG) < SVt_PVLV) {
313 sv_upgrade(TARG, SVt_PVLV);
314 sv_magic(TARG, Nullsv, '.', Nullch, 0);
319 PUSHs(TARG); /* no SvSETMAGIC */
325 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
326 mg = mg_find(sv, 'g');
327 if (mg && mg->mg_len >= 0) {
328 PUSHi(mg->mg_len + curcop->cop_arybase);
342 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
343 /* (But not in defined().) */
344 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
347 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
364 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
366 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
374 CV* cv = (CV*)curpad[op->op_targ];
376 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
392 if (GIMME != G_ARRAY) {
396 EXTEND_MORTAL(SP - MARK);
398 *MARK = refto(*MARK);
407 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
410 if (!(sv = LvTARG(sv)))
413 else if (SvPADTMP(sv))
417 (void)SvREFCNT_inc(sv);
420 sv_upgrade(rv, SVt_RV);
434 if (sv && SvGMAGICAL(sv))
437 if (!sv || !SvROK(sv))
441 pv = sv_reftype(sv,TRUE);
442 PUSHp(pv, strlen(pv));
452 stash = curcop->cop_stash;
454 stash = gv_stashsv(POPs, TRUE);
456 (void)sv_bless(TOPs, stash);
473 switch (elem ? *elem : '\0')
476 if (strEQ(elem, "ARRAY"))
480 if (strEQ(elem, "CODE"))
481 ref = (SV*)GvCVu(gv);
484 if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */
485 ref = (SV*)GvIOp(gv);
488 if (strEQ(elem, "GLOB"))
492 if (strEQ(elem, "HASH"))
496 if (strEQ(elem, "IO"))
497 ref = (SV*)GvIOp(gv);
500 if (strEQ(elem, "NAME"))
501 sv = newSVpv(GvNAME(gv), GvNAMELEN(gv));
504 if (strEQ(elem, "PACKAGE"))
505 sv = newSVpv(HvNAME(GvSTASH(gv)), 0);
508 if (strEQ(elem, "SCALAR"))
522 /* Pattern matching */
527 register unsigned char *s;
530 register I32 *sfirst;
534 if (sv == lastscream) {
540 SvSCREAM_off(lastscream);
541 SvREFCNT_dec(lastscream);
543 lastscream = SvREFCNT_inc(sv);
546 s = (unsigned char*)(SvPV(sv, len));
550 if (pos > maxscream) {
552 maxscream = pos + 80;
553 New(301, screamfirst, 256, I32);
554 New(302, screamnext, maxscream, I32);
557 maxscream = pos + pos / 4;
558 Renew(screamnext, maxscream, I32);
562 sfirst = screamfirst;
565 if (!sfirst || !snext)
566 DIE("do_study: out of memory");
568 for (ch = 256; ch; --ch)
575 snext[pos] = sfirst[ch] - pos;
582 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
591 if (op->op_flags & OPf_STACKED)
597 TARG = sv_newmortal();
598 PUSHi(do_trans(sv, op));
602 /* Lvalue operators. */
624 SETi(do_chomp(TOPs));
631 register I32 count = 0;
634 count += do_chomp(POPs);
645 if (!sv || !SvANY(sv))
647 switch (SvTYPE(sv)) {
649 if (AvMAX(sv) >= 0 || SvGMAGICAL(sv))
653 if (HvARRAY(sv) || SvGMAGICAL(sv))
657 if (CvROOT(sv) || CvXSUB(sv))
674 if (!op->op_private) {
683 if (SvTHINKFIRST(sv)) {
690 switch (SvTYPE(sv)) {
700 if (cv_const_sv((CV*)sv))
701 warn("Constant subroutine %s undefined",
702 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
705 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
707 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
711 sv_setsv(sv, &sv_undef);
714 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
717 SvPV_set(sv, Nullch);
730 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
732 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
733 SvIVX(TOPs) != IV_MIN)
736 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
747 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
749 sv_setsv(TARG, TOPs);
750 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
751 SvIVX(TOPs) != IV_MAX)
754 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
768 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
770 sv_setsv(TARG, TOPs);
771 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
772 SvIVX(TOPs) != IV_MIN)
775 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
784 /* Ordinary operators. */
788 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
791 SETn( pow( left, right) );
798 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
801 SETn( left * right );
808 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
813 DIE("Illegal division by zero");
815 /* insure that 20./5. == 4. */
818 if ((double)I_V(left) == left &&
819 (double)I_V(right) == right &&
820 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
823 value = left / right;
827 value = left / right;
836 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
844 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
846 right = (right_neg = (i < 0)) ? -i : i;
850 right = U_V((right_neg = (n < 0)) ? -n : n);
853 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
855 left = (left_neg = (i < 0)) ? -i : i;
859 left = U_V((left_neg = (n < 0)) ? -n : n);
863 DIE("Illegal modulus zero");
866 if ((left_neg != right_neg) && ans)
869 /* XXX may warn: unary minus operator applied to unsigned type */
870 /* could change -foo to be (~foo)+1 instead */
871 if (ans <= -(UV)IV_MAX)
872 sv_setiv(TARG, (IV) -ans);
874 sv_setnv(TARG, -(double)ans);
885 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
887 register I32 count = POPi;
888 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
890 I32 items = SP - MARK;
902 repeatcpy((char*)(MARK + items), (char*)MARK,
903 items * sizeof(SV*), count - 1);
909 else { /* Note: mark already snarfed by pp_list */
914 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
915 if (SvREADONLY(tmpstr) && curcop != &compiling)
916 DIE("Can't x= to readonly value");
920 SvSetSV(TARG, tmpstr);
921 SvPV_force(TARG, len);
926 SvGROW(TARG, (count * len) + 1);
927 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
928 SvCUR(TARG) *= count;
932 (void)SvPOK_only(TARG);
941 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
944 SETn( left - right );
951 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
954 if (op->op_private & HINT_INTEGER) {
970 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
973 if (op->op_private & HINT_INTEGER) {
989 dSP; tryAMAGICbinSET(lt,0);
992 SETs(boolSV(TOPn < value));
999 dSP; tryAMAGICbinSET(gt,0);
1002 SETs(boolSV(TOPn > value));
1009 dSP; tryAMAGICbinSET(le,0);
1012 SETs(boolSV(TOPn <= value));
1019 dSP; tryAMAGICbinSET(ge,0);
1022 SETs(boolSV(TOPn >= value));
1029 dSP; tryAMAGICbinSET(ne,0);
1032 SETs(boolSV(TOPn != value));
1039 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1046 else if (left < right)
1048 else if (left > right)
1061 dSP; tryAMAGICbinSET(slt,0);
1064 int cmp = ((op->op_private & OPpLOCALE)
1065 ? sv_cmp_locale(left, right)
1066 : sv_cmp(left, right));
1067 SETs(boolSV(cmp < 0));
1074 dSP; tryAMAGICbinSET(sgt,0);
1077 int cmp = ((op->op_private & OPpLOCALE)
1078 ? sv_cmp_locale(left, right)
1079 : sv_cmp(left, right));
1080 SETs(boolSV(cmp > 0));
1087 dSP; tryAMAGICbinSET(sle,0);
1090 int cmp = ((op->op_private & OPpLOCALE)
1091 ? sv_cmp_locale(left, right)
1092 : sv_cmp(left, right));
1093 SETs(boolSV(cmp <= 0));
1100 dSP; tryAMAGICbinSET(sge,0);
1103 int cmp = ((op->op_private & OPpLOCALE)
1104 ? sv_cmp_locale(left, right)
1105 : sv_cmp(left, right));
1106 SETs(boolSV(cmp >= 0));
1113 dSP; tryAMAGICbinSET(seq,0);
1116 SETs(boolSV(sv_eq(left, right)));
1123 dSP; tryAMAGICbinSET(sne,0);
1126 SETs(boolSV(!sv_eq(left, right)));
1133 dSP; dTARGET; tryAMAGICbin(scmp,0);
1136 int cmp = ((op->op_private & OPpLOCALE)
1137 ? sv_cmp_locale(left, right)
1138 : sv_cmp(left, right));
1146 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
1149 if (SvNIOKp(left) || SvNIOKp(right)) {
1150 if (op->op_private & HINT_INTEGER) {
1151 IBW value = SvIV(left) & SvIV(right);
1155 UBW value = SvUV(left) & SvUV(right);
1160 do_vop(op->op_type, TARG, left, right);
1169 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1172 if (SvNIOKp(left) || SvNIOKp(right)) {
1173 if (op->op_private & HINT_INTEGER) {
1174 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1178 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1183 do_vop(op->op_type, TARG, left, right);
1192 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1195 if (SvNIOKp(left) || SvNIOKp(right)) {
1196 if (op->op_private & HINT_INTEGER) {
1197 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1201 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1206 do_vop(op->op_type, TARG, left, right);
1215 dSP; dTARGET; tryAMAGICun(neg);
1220 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1222 else if (SvNIOKp(sv))
1224 else if (SvPOKp(sv)) {
1226 char *s = SvPV(sv, len);
1227 if (isIDFIRST(*s)) {
1228 sv_setpvn(TARG, "-", 1);
1231 else if (*s == '+' || *s == '-') {
1233 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1236 sv_setnv(TARG, -SvNV(sv));
1248 dSP; tryAMAGICunSET(not);
1249 #endif /* OVERLOAD */
1250 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1256 dSP; dTARGET; tryAMAGICun(compl);
1260 if (op->op_private & HINT_INTEGER) {
1261 IBW value = ~SvIV(sv);
1265 UBW value = ~SvUV(sv);
1270 register char *tmps;
1271 register long *tmpl;
1276 tmps = SvPV_force(TARG, len);
1279 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1282 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1286 for ( ; anum > 0; anum--, tmps++)
1295 /* integer versions of some of the above */
1299 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1302 SETi( left * right );
1309 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1313 DIE("Illegal division by zero");
1314 value = POPi / value;
1322 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1326 DIE("Illegal modulus zero");
1327 SETi( left % right );
1334 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1337 SETi( left + right );
1344 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1347 SETi( left - right );
1354 dSP; tryAMAGICbinSET(lt,0);
1357 SETs(boolSV(left < right));
1364 dSP; tryAMAGICbinSET(gt,0);
1367 SETs(boolSV(left > right));
1374 dSP; tryAMAGICbinSET(le,0);
1377 SETs(boolSV(left <= right));
1384 dSP; tryAMAGICbinSET(ge,0);
1387 SETs(boolSV(left >= right));
1394 dSP; tryAMAGICbinSET(eq,0);
1397 SETs(boolSV(left == right));
1404 dSP; tryAMAGICbinSET(ne,0);
1407 SETs(boolSV(left != right));
1414 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1421 else if (left < right)
1432 dSP; dTARGET; tryAMAGICun(neg);
1437 /* High falutin' math. */
1441 dSP; dTARGET; tryAMAGICbin(atan2,0);
1444 SETn(atan2(left, right));
1451 dSP; dTARGET; tryAMAGICun(sin);
1463 dSP; dTARGET; tryAMAGICun(cos);
1483 if (!srand_called) {
1484 (void)srand((unsigned)seed());
1485 srand_called = TRUE;
1488 value = rand() * value / 2147483648.0;
1491 value = rand() * value / 65536.0;
1494 value = rand() * value / 32768.0;
1496 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1512 (void)srand((unsigned)anum);
1513 srand_called = TRUE;
1522 * This is really just a quick hack which grabs various garbage
1523 * values. It really should be a real hash algorithm which
1524 * spreads the effect of every input bit onto every output bit,
1525 * if someone who knows about such tings would bother to write it.
1526 * Might be a good idea to add that function to CORE as well.
1527 * No numbers below come from careful analysis or anyting here,
1528 * except they are primes and SEED_C1 > 1E6 to get a full-width
1529 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1530 * probably be bigger too.
1533 # define SEED_C1 1000003
1534 #define SEED_C4 73819
1536 # define SEED_C1 25747
1537 #define SEED_C4 20639
1541 #define SEED_C5 26107
1546 # include <starlet.h>
1547 /* when[] = (low 32 bits, high 32 bits) of time since epoch
1548 * in 100-ns units, typically incremented ever 10 ms. */
1549 unsigned int when[2];
1550 _ckvmssts(sys$gettim(when));
1551 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1553 # ifdef HAS_GETTIMEOFDAY
1554 struct timeval when;
1555 gettimeofday(&when,(struct timezone *) 0);
1556 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1560 u = (U32)SEED_C1 * when;
1563 u += SEED_C3 * (U32)getpid();
1564 u += SEED_C4 * (U32)(UV)stack_sp;
1565 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1566 u += SEED_C5 * (U32)(UV)&when;
1573 dSP; dTARGET; tryAMAGICun(exp);
1585 dSP; dTARGET; tryAMAGICun(log);
1590 SET_NUMERIC_STANDARD();
1591 DIE("Can't take log of %g", value);
1601 dSP; dTARGET; tryAMAGICun(sqrt);
1606 SET_NUMERIC_STANDARD();
1607 DIE("Can't take sqrt of %g", value);
1609 value = sqrt(value);
1619 double value = TOPn;
1622 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1628 (void)modf(value, &value);
1630 (void)modf(-value, &value);
1645 dSP; dTARGET; tryAMAGICun(abs);
1647 double value = TOPn;
1650 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1651 (iv = SvIVX(TOPs)) != IV_MIN) {
1672 XPUSHu(scan_hex(tmps, 99, &argtype));
1684 while (*tmps && isSPACE(*tmps))
1689 value = scan_hex(++tmps, 99, &argtype);
1691 value = scan_oct(tmps, 99, &argtype);
1701 SETi( sv_len(TOPs) );
1714 I32 lvalue = op->op_flags & OPf_MOD;
1716 I32 arybase = curcop->cop_arybase;
1722 tmps = SvPV(sv, curlen);
1723 if (pos >= arybase) {
1741 else if (len >= 0) {
1743 if (rem > (I32)curlen)
1757 if (dowarn || lvalue)
1758 warn("substr outside of string");
1763 sv_setpvn(TARG, tmps, rem);
1764 if (lvalue) { /* it's an lvalue! */
1765 if (!SvGMAGICAL(sv)) {
1769 warn("Attempt to use reference as lvalue in substr");
1771 if (SvOK(sv)) /* is it defined ? */
1772 (void)SvPOK_only(sv);
1774 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1777 if (SvTYPE(TARG) < SVt_PVLV) {
1778 sv_upgrade(TARG, SVt_PVLV);
1779 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1784 LvTARGOFF(TARG) = pos;
1785 LvTARGLEN(TARG) = rem;
1788 PUSHs(TARG); /* avoid SvSETMAGIC here */
1795 register I32 size = POPi;
1796 register I32 offset = POPi;
1797 register SV *src = POPs;
1798 I32 lvalue = op->op_flags & OPf_MOD;
1800 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1801 unsigned long retnum;
1804 offset *= size; /* turn into bit offset */
1805 len = (offset + size + 7) / 8;
1806 if (offset < 0 || size < 1)
1809 if (lvalue) { /* it's an lvalue! */
1810 if (SvTYPE(TARG) < SVt_PVLV) {
1811 sv_upgrade(TARG, SVt_PVLV);
1812 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1817 LvTARGOFF(TARG) = offset;
1818 LvTARGLEN(TARG) = size;
1826 if (offset >= srclen)
1829 retnum = (unsigned long) s[offset] << 8;
1831 else if (size == 32) {
1832 if (offset >= srclen)
1834 else if (offset + 1 >= srclen)
1835 retnum = (unsigned long) s[offset] << 24;
1836 else if (offset + 2 >= srclen)
1837 retnum = ((unsigned long) s[offset] << 24) +
1838 ((unsigned long) s[offset + 1] << 16);
1840 retnum = ((unsigned long) s[offset] << 24) +
1841 ((unsigned long) s[offset + 1] << 16) +
1842 (s[offset + 2] << 8);
1847 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1852 else if (size == 16)
1853 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1854 else if (size == 32)
1855 retnum = ((unsigned long) s[offset] << 24) +
1856 ((unsigned long) s[offset + 1] << 16) +
1857 (s[offset + 2] << 8) + s[offset+3];
1861 sv_setiv(TARG, (IV)retnum);
1876 I32 arybase = curcop->cop_arybase;
1881 offset = POPi - arybase;
1884 tmps = SvPV(big, biglen);
1887 else if (offset > biglen)
1889 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1890 (unsigned char*)tmps + biglen, little)))
1891 retval = -1 + arybase;
1893 retval = tmps2 - tmps + arybase;
1910 I32 arybase = curcop->cop_arybase;
1916 tmps2 = SvPV(little, llen);
1917 tmps = SvPV(big, blen);
1921 offset = SvIV(offstr) - arybase + llen;
1924 else if (offset > blen)
1926 if (!(tmps2 = rninstr(tmps, tmps + offset,
1927 tmps2, tmps2 + llen)))
1928 retval = -1 + arybase;
1930 retval = tmps2 - tmps + arybase;
1937 dSP; dMARK; dORIGMARK; dTARGET;
1938 #ifdef USE_LOCALE_NUMERIC
1939 if (op->op_private & OPpLOCALE)
1940 SET_NUMERIC_LOCAL();
1942 SET_NUMERIC_STANDARD();
1944 do_sprintf(TARG, SP-MARK, MARK+1);
1945 TAINT_IF(SvTAINTED(TARG));
1959 value = (I32) (*tmps & 255);
1964 value = (I32) (anum & 255);
1975 (void)SvUPGRADE(TARG,SVt_PV);
1981 (void)SvPOK_only(TARG);
1988 dSP; dTARGET; dPOPTOPssrl;
1990 char *tmps = SvPV(left, na);
1992 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1994 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1998 "The crypt() function is unimplemented due to excessive paranoia.");
2010 if (!SvPADTMP(sv)) {
2016 s = SvPV_force(sv, na);
2018 if (op->op_private & OPpLOCALE) {
2021 *s = toUPPER_LC(*s);
2036 if (!SvPADTMP(sv)) {
2042 s = SvPV_force(sv, na);
2044 if (op->op_private & OPpLOCALE) {
2047 *s = toLOWER_LC(*s);
2064 if (!SvPADTMP(sv)) {
2071 s = SvPV_force(sv, len);
2073 register char *send = s + len;
2075 if (op->op_private & OPpLOCALE) {
2078 for (; s < send; s++)
2079 *s = toUPPER_LC(*s);
2082 for (; s < send; s++)
2096 if (!SvPADTMP(sv)) {
2103 s = SvPV_force(sv, len);
2105 register char *send = s + len;
2107 if (op->op_private & OPpLOCALE) {
2110 for (; s < send; s++)
2111 *s = toLOWER_LC(*s);
2114 for (; s < send; s++)
2126 register char *s = SvPV(sv,len);
2130 (void)SvUPGRADE(TARG, SVt_PV);
2131 SvGROW(TARG, (len * 2) + 1);
2139 SvCUR_set(TARG, d - SvPVX(TARG));
2140 (void)SvPOK_only(TARG);
2143 sv_setpvn(TARG, s, len);
2152 dSP; dMARK; dORIGMARK;
2154 register AV* av = (AV*)POPs;
2155 register I32 lval = op->op_flags & OPf_MOD;
2156 I32 arybase = curcop->cop_arybase;
2159 if (SvTYPE(av) == SVt_PVAV) {
2160 if (lval && op->op_private & OPpLVAL_INTRO) {
2162 for (svp = mark + 1; svp <= sp; svp++) {
2167 if (max > AvMAX(av))
2170 while (++MARK <= SP) {
2171 elem = SvIVx(*MARK);
2175 svp = av_fetch(av, elem, lval);
2177 if (!svp || *svp == &sv_undef)
2178 DIE(no_aelem, elem);
2179 if (op->op_private & OPpLVAL_INTRO)
2182 *MARK = svp ? *svp : &sv_undef;
2185 if (GIMME != G_ARRAY) {
2193 /* Associative arrays. */
2198 HV *hash = (HV*)POPs;
2200 I32 gimme = GIMME_V;
2201 I32 realhv = (SvTYPE(hash) == SVt_PVHV);
2204 /* might clobber stack_sp */
2205 entry = realhv ? hv_iternext(hash) : avhv_iternext((AV*)hash);
2210 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2211 if (gimme == G_ARRAY) {
2213 /* might clobber stack_sp */
2214 sv_setsv(TARG, realhv ?
2215 hv_iterval(hash, entry) : avhv_iterval((AV*)hash, entry));
2220 else if (gimme == G_SCALAR)
2239 I32 gimme = GIMME_V;
2240 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2244 if (op->op_private & OPpSLICE) {
2248 hvtype = SvTYPE(hv);
2249 while (++MARK <= SP) {
2250 if (hvtype == SVt_PVHV)
2251 sv = hv_delete_ent(hv, *MARK, discard, 0);
2252 else if (hvtype == SVt_PVAV)
2253 sv = avhv_delete_ent((AV*)hv, *MARK, discard, 0);
2255 DIE("Not a HASH reference");
2256 *MARK = sv ? sv : &sv_undef;
2260 else if (gimme == G_SCALAR) {
2269 if (SvTYPE(hv) == SVt_PVHV)
2270 sv = hv_delete_ent(hv, keysv, discard, 0);
2271 else if (SvTYPE(hv) == SVt_PVAV)
2272 sv = avhv_delete_ent((AV*)hv, keysv, discard, 0);
2274 DIE("Not a HASH reference");
2288 if (SvTYPE(hv) == SVt_PVHV) {
2289 if (hv_exists_ent(hv, tmpsv, 0))
2291 } else if (SvTYPE(hv) == SVt_PVAV) {
2292 if (avhv_exists_ent((AV*)hv, tmpsv, 0))
2295 DIE("Not a HASH reference");
2302 dSP; dMARK; dORIGMARK;
2304 register HV *hv = (HV*)POPs;
2305 register I32 lval = op->op_flags & OPf_MOD;
2306 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
2308 if (realhv || SvTYPE(hv) == SVt_PVAV) {
2309 while (++MARK <= SP) {
2313 he = hv_fetch_ent(hv, keysv, lval, 0);
2314 svp = he ? &HeVAL(he) : 0;
2316 svp = avhv_fetch_ent((AV*)hv, keysv, lval, 0);
2319 if (!he || HeVAL(he) == &sv_undef)
2320 DIE(no_helem, SvPV(keysv, na));
2321 if (op->op_private & OPpLVAL_INTRO)
2322 save_svref(&HeVAL(he));
2324 *MARK = he ? HeVAL(he) : &sv_undef;
2327 if (GIMME != G_ARRAY) {
2335 /* List operators. */
2340 if (GIMME != G_ARRAY) {
2342 *MARK = *SP; /* unwanted list, return last item */
2353 SV **lastrelem = stack_sp;
2354 SV **lastlelem = stack_base + POPMARK;
2355 SV **firstlelem = stack_base + POPMARK + 1;
2356 register SV **firstrelem = lastlelem + 1;
2357 I32 arybase = curcop->cop_arybase;
2358 I32 lval = op->op_flags & OPf_MOD;
2359 I32 is_something_there = lval;
2361 register I32 max = lastrelem - lastlelem;
2362 register SV **lelem;
2365 if (GIMME != G_ARRAY) {
2366 ix = SvIVx(*lastlelem);
2371 if (ix < 0 || ix >= max)
2372 *firstlelem = &sv_undef;
2374 *firstlelem = firstrelem[ix];
2380 SP = firstlelem - 1;
2384 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2390 else if (!(*lelem = firstrelem[ix]))
2395 if (ix >= max || !(*lelem = firstrelem[ix]))
2398 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2399 is_something_there = TRUE;
2401 if (is_something_there)
2404 SP = firstlelem - 1;
2410 dSP; dMARK; dORIGMARK;
2411 I32 items = SP - MARK;
2412 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2413 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2420 dSP; dMARK; dORIGMARK;
2421 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2425 SV *val = NEWSV(46, 0);
2427 sv_setsv(val, *++MARK);
2429 warn("Odd number of elements in hash list");
2430 (void)hv_store_ent(hv,key,val,0);
2439 dSP; dMARK; dORIGMARK;
2440 register AV *ary = (AV*)*++MARK;
2444 register I32 offset;
2445 register I32 length;
2454 offset = i = SvIVx(*MARK);
2456 offset += AvFILL(ary) + 1;
2458 offset -= curcop->cop_arybase;
2462 length = SvIVx(*MARK++);
2467 length = AvMAX(ary) + 1; /* close enough to infinity */
2471 length = AvMAX(ary) + 1;
2473 if (offset > AvFILL(ary) + 1)
2474 offset = AvFILL(ary) + 1;
2475 after = AvFILL(ary) + 1 - (offset + length);
2476 if (after < 0) { /* not that much array */
2477 length += after; /* offset+length now in array */
2483 /* At this point, MARK .. SP-1 is our new LIST */
2486 diff = newlen - length;
2487 if (newlen && !AvREAL(ary)) {
2491 assert(AvREAL(ary)); /* would leak, so croak */
2494 if (diff < 0) { /* shrinking the area */
2496 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2497 Copy(MARK, tmparyval, newlen, SV*);
2500 MARK = ORIGMARK + 1;
2501 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2502 MEXTEND(MARK, length);
2503 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2505 EXTEND_MORTAL(length);
2506 for (i = length, dst = MARK; i; i--) {
2507 if (!SvIMMORTAL(*dst))
2508 sv_2mortal(*dst); /* free them eventualy */
2515 *MARK = AvARRAY(ary)[offset+length-1];
2517 if (!SvIMMORTAL(*MARK))
2519 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2520 SvREFCNT_dec(*dst++); /* free them now */
2523 AvFILL(ary) += diff;
2525 /* pull up or down? */
2527 if (offset < after) { /* easier to pull up */
2528 if (offset) { /* esp. if nothing to pull */
2529 src = &AvARRAY(ary)[offset-1];
2530 dst = src - diff; /* diff is negative */
2531 for (i = offset; i > 0; i--) /* can't trust Copy */
2535 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2539 if (after) { /* anything to pull down? */
2540 src = AvARRAY(ary) + offset + length;
2541 dst = src + diff; /* diff is negative */
2542 Move(src, dst, after, SV*);
2544 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2545 /* avoid later double free */
2549 dst[--i] = &sv_undef;
2552 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2554 *dst = NEWSV(46, 0);
2555 sv_setsv(*dst++, *src++);
2557 Safefree(tmparyval);
2560 else { /* no, expanding (or same) */
2562 New(452, tmparyval, length, SV*); /* so remember deletion */
2563 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2566 if (diff > 0) { /* expanding */
2568 /* push up or down? */
2570 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2574 Move(src, dst, offset, SV*);
2576 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2578 AvFILL(ary) += diff;
2581 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2582 av_extend(ary, AvFILL(ary) + diff);
2583 AvFILL(ary) += diff;
2586 dst = AvARRAY(ary) + AvFILL(ary);
2588 for (i = after; i; i--) {
2595 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2596 *dst = NEWSV(46, 0);
2597 sv_setsv(*dst++, *src++);
2599 MARK = ORIGMARK + 1;
2600 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2602 Copy(tmparyval, MARK, length, SV*);
2604 EXTEND_MORTAL(length);
2605 for (i = length, dst = MARK; i; i--) {
2606 if (!SvIMMORTAL(*dst))
2607 sv_2mortal(*dst); /* free them eventualy */
2611 Safefree(tmparyval);
2615 else if (length--) {
2616 *MARK = tmparyval[length];
2618 if (!SvIMMORTAL(*MARK))
2620 while (length-- > 0)
2621 SvREFCNT_dec(tmparyval[length]);
2623 Safefree(tmparyval);
2634 dSP; dMARK; dORIGMARK; dTARGET;
2635 register AV *ary = (AV*)*++MARK;
2636 register SV *sv = &sv_undef;
2638 for (++MARK; MARK <= SP; MARK++) {
2641 sv_setsv(sv, *MARK);
2645 PUSHi( AvFILL(ary) + 1 );
2653 SV *sv = av_pop(av);
2654 if (!SvIMMORTAL(sv) && AvREAL(av))
2655 (void)sv_2mortal(sv);
2664 SV *sv = av_shift(av);
2668 if (!SvIMMORTAL(sv) && AvREAL(av))
2669 (void)sv_2mortal(sv);
2676 dSP; dMARK; dORIGMARK; dTARGET;
2677 register AV *ary = (AV*)*++MARK;
2681 av_unshift(ary, SP - MARK);
2684 sv_setsv(sv, *++MARK);
2685 (void)av_store(ary, i++, sv);
2689 PUSHi( AvFILL(ary) + 1 );
2699 if (GIMME == G_ARRAY) {
2710 register char *down;
2716 do_join(TARG, &sv_no, MARK, SP);
2718 sv_setsv(TARG, (SP > MARK) ? *SP : GvSV(defgv));
2719 up = SvPV_force(TARG, len);
2721 down = SvPVX(TARG) + len - 1;
2727 (void)SvPOK_only(TARG);
2736 mul128(SV *sv, U8 m)
2739 char *s = SvPV(sv, len);
2743 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2744 SV *New = newSVpv("0000000000", 10);
2747 SvREFCNT_dec(sv); /* free old sv */
2752 while (!*t) /* trailing '\0'? */
2755 i = ((*t - '0') << 7) + m;
2756 *(t--) = '0' + (i % 10);
2762 /* Explosives and implosives. */
2769 I32 gimme = GIMME_V;
2773 register char *pat = SvPV(left, llen);
2774 register char *s = SvPV(right, rlen);
2775 char *strend = s + rlen;
2777 register char *patend = pat + llen;
2782 /* These must not be in registers: */
2793 unsigned Quad_t auquad;
2799 register U32 culong;
2801 static char* bitcount = 0;
2804 if (gimme != G_ARRAY) { /* arrange to do first one only */
2806 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2807 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2809 while (isDIGIT(*patend) || *patend == '*')
2815 while (pat < patend) {
2817 datumtype = *pat++ & 0xFF;
2818 if (isSPACE(datumtype))
2822 else if (*pat == '*') {
2823 len = strend - strbeg; /* long enough */
2826 else if (isDIGIT(*pat)) {
2828 while (isDIGIT(*pat))
2829 len = (len * 10) + (*pat++ - '0');
2832 len = (datumtype != '@');
2835 croak("Invalid type in unpack: '%c'", (int)datumtype);
2836 case ',': /* grandfather in commas but with a warning */
2837 if (commas++ == 0 && dowarn)
2838 warn("Invalid type in unpack: '%c'", (int)datumtype);
2841 if (len == 1 && pat[-1] != '1')
2850 if (len > strend - strbeg)
2851 DIE("@ outside of string");
2855 if (len > s - strbeg)
2856 DIE("X outside of string");
2860 if (len > strend - s)
2861 DIE("x outside of string");
2866 if (len > strend - s)
2869 goto uchar_checksum;
2870 sv = NEWSV(35, len);
2871 sv_setpvn(sv, s, len);
2873 if (datumtype == 'A') {
2874 aptr = s; /* borrow register */
2875 s = SvPVX(sv) + len - 1;
2876 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2879 SvCUR_set(sv, s - SvPVX(sv));
2880 s = aptr; /* unborrow register */
2882 XPUSHs(sv_2mortal(sv));
2886 if (pat[-1] == '*' || len > (strend - s) * 8)
2887 len = (strend - s) * 8;
2890 Newz(601, bitcount, 256, char);
2891 for (bits = 1; bits < 256; bits++) {
2892 if (bits & 1) bitcount[bits]++;
2893 if (bits & 2) bitcount[bits]++;
2894 if (bits & 4) bitcount[bits]++;
2895 if (bits & 8) bitcount[bits]++;
2896 if (bits & 16) bitcount[bits]++;
2897 if (bits & 32) bitcount[bits]++;
2898 if (bits & 64) bitcount[bits]++;
2899 if (bits & 128) bitcount[bits]++;
2903 culong += bitcount[*(unsigned char*)s++];
2908 if (datumtype == 'b') {
2910 if (bits & 1) culong++;
2916 if (bits & 128) culong++;
2923 sv = NEWSV(35, len + 1);
2926 aptr = pat; /* borrow register */
2928 if (datumtype == 'b') {
2930 for (len = 0; len < aint; len++) {
2931 if (len & 7) /*SUPPRESS 595*/
2935 *pat++ = '0' + (bits & 1);
2940 for (len = 0; len < aint; len++) {
2945 *pat++ = '0' + ((bits & 128) != 0);
2949 pat = aptr; /* unborrow register */
2950 XPUSHs(sv_2mortal(sv));
2954 if (pat[-1] == '*' || len > (strend - s) * 2)
2955 len = (strend - s) * 2;
2956 sv = NEWSV(35, len + 1);
2959 aptr = pat; /* borrow register */
2961 if (datumtype == 'h') {
2963 for (len = 0; len < aint; len++) {
2968 *pat++ = hexdigit[bits & 15];
2973 for (len = 0; len < aint; len++) {
2978 *pat++ = hexdigit[(bits >> 4) & 15];
2982 pat = aptr; /* unborrow register */
2983 XPUSHs(sv_2mortal(sv));
2986 if (len > strend - s)
2991 if (aint >= 128) /* fake up signed chars */
3001 if (aint >= 128) /* fake up signed chars */
3004 sv_setiv(sv, (IV)aint);
3005 PUSHs(sv_2mortal(sv));
3010 if (len > strend - s)
3025 sv_setiv(sv, (IV)auint);
3026 PUSHs(sv_2mortal(sv));
3031 along = (strend - s) / SIZE16;
3048 sv_setiv(sv, (IV)ashort);
3049 PUSHs(sv_2mortal(sv));
3056 along = (strend - s) / SIZE16;
3061 COPY16(s, &aushort);
3064 if (datumtype == 'n')
3065 aushort = ntohs(aushort);
3068 if (datumtype == 'v')
3069 aushort = vtohs(aushort);
3078 COPY16(s, &aushort);
3082 if (datumtype == 'n')
3083 aushort = ntohs(aushort);
3086 if (datumtype == 'v')
3087 aushort = vtohs(aushort);
3089 sv_setiv(sv, (IV)aushort);
3090 PUSHs(sv_2mortal(sv));
3095 along = (strend - s) / sizeof(int);
3100 Copy(s, &aint, 1, int);
3103 cdouble += (double)aint;
3112 Copy(s, &aint, 1, int);
3115 sv_setiv(sv, (IV)aint);
3116 PUSHs(sv_2mortal(sv));
3121 along = (strend - s) / sizeof(unsigned int);
3126 Copy(s, &auint, 1, unsigned int);
3127 s += sizeof(unsigned int);
3129 cdouble += (double)auint;
3138 Copy(s, &auint, 1, unsigned int);
3139 s += sizeof(unsigned int);
3141 sv_setuv(sv, (UV)auint);
3142 PUSHs(sv_2mortal(sv));
3147 along = (strend - s) / SIZE32;
3155 cdouble += (double)along;
3167 sv_setiv(sv, (IV)along);
3168 PUSHs(sv_2mortal(sv));
3175 along = (strend - s) / SIZE32;
3183 if (datumtype == 'N')
3184 aulong = ntohl(aulong);
3187 if (datumtype == 'V')
3188 aulong = vtohl(aulong);
3191 cdouble += (double)aulong;
3203 if (datumtype == 'N')
3204 aulong = ntohl(aulong);
3207 if (datumtype == 'V')
3208 aulong = vtohl(aulong);
3211 sv_setuv(sv, (UV)aulong);
3212 PUSHs(sv_2mortal(sv));
3217 along = (strend - s) / sizeof(char*);
3223 if (sizeof(char*) > strend - s)
3226 Copy(s, &aptr, 1, char*);
3232 PUSHs(sv_2mortal(sv));
3242 while ((len > 0) && (s < strend)) {
3243 auv = (auv << 7) | (*s & 0x7f);
3244 if (!(*s++ & 0x80)) {
3248 PUSHs(sv_2mortal(sv));
3252 else if (++bytes >= sizeof(UV)) { /* promote to string */
3255 sv = newSVpvf("%.*Vu", (int)TYPE_DIGITS(UV), auv);
3256 while (s < strend) {
3257 sv = mul128(sv, *s & 0x7f);
3258 if (!(*s++ & 0x80)) {
3267 PUSHs(sv_2mortal(sv));
3272 if ((s >= strend) && bytes)
3273 croak("Unterminated compressed integer");
3278 if (sizeof(char*) > strend - s)
3281 Copy(s, &aptr, 1, char*);
3286 sv_setpvn(sv, aptr, len);
3287 PUSHs(sv_2mortal(sv));
3294 if (s + sizeof(Quad_t) > strend)
3297 Copy(s, &aquad, 1, Quad_t);
3298 s += sizeof(Quad_t);
3301 if (aquad >= IV_MIN && aquad <= IV_MAX)
3302 sv_setiv(sv, (IV)aquad);
3304 sv_setnv(sv, (double)aquad);
3305 PUSHs(sv_2mortal(sv));
3312 if (s + sizeof(unsigned Quad_t) > strend)
3315 Copy(s, &auquad, 1, unsigned Quad_t);
3316 s += sizeof(unsigned Quad_t);
3319 if (aquad <= UV_MAX)
3320 sv_setuv(sv, (UV)auquad);
3322 sv_setnv(sv, (double)auquad);
3323 PUSHs(sv_2mortal(sv));
3327 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3330 along = (strend - s) / sizeof(float);
3335 Copy(s, &afloat, 1, float);
3344 Copy(s, &afloat, 1, float);
3347 sv_setnv(sv, (double)afloat);
3348 PUSHs(sv_2mortal(sv));
3354 along = (strend - s) / sizeof(double);
3359 Copy(s, &adouble, 1, double);
3360 s += sizeof(double);
3368 Copy(s, &adouble, 1, double);
3369 s += sizeof(double);
3371 sv_setnv(sv, (double)adouble);
3372 PUSHs(sv_2mortal(sv));
3377 along = (strend - s) * 3 / 4;
3378 sv = NEWSV(42, along);
3381 while (s < strend && *s > ' ' && *s < 'a') {
3386 len = (*s++ - ' ') & 077;
3388 if (s < strend && *s >= ' ')
3389 a = (*s++ - ' ') & 077;
3392 if (s < strend && *s >= ' ')
3393 b = (*s++ - ' ') & 077;
3396 if (s < strend && *s >= ' ')
3397 c = (*s++ - ' ') & 077;
3400 if (s < strend && *s >= ' ')
3401 d = (*s++ - ' ') & 077;
3404 hunk[0] = a << 2 | b >> 4;
3405 hunk[1] = b << 4 | c >> 2;
3406 hunk[2] = c << 6 | d;
3407 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3412 else if (s[1] == '\n') /* possible checksum byte */
3415 XPUSHs(sv_2mortal(sv));
3420 if (strchr("fFdD", datumtype) ||
3421 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3425 while (checksum >= 16) {
3429 while (checksum >= 4) {
3435 along = (1 << checksum) - 1;
3436 while (cdouble < 0.0)
3438 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3439 sv_setnv(sv, cdouble);
3442 if (checksum < 32) {
3443 aulong = (1 << checksum) - 1;
3446 sv_setuv(sv, (UV)culong);
3448 XPUSHs(sv_2mortal(sv));
3452 if (sp == oldsp && gimme == G_SCALAR)
3458 doencodes(register SV *sv, register char *s, register I32 len)
3463 sv_catpvn(sv, hunk, 1);
3466 hunk[0] = ' ' + (077 & (*s >> 2));
3467 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3468 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3469 hunk[3] = ' ' + (077 & (s[2] & 077));
3470 sv_catpvn(sv, hunk, 4);
3474 for (s = SvPVX(sv); *s; s++) {
3478 sv_catpvn(sv, "\n", 1);
3482 is_an_int(char *s, STRLEN l)
3484 SV *result = newSVpv("", l);
3485 char *result_c = SvPV(result, na); /* convenience */
3486 char *out = result_c;
3496 SvREFCNT_dec(result);
3519 SvREFCNT_dec(result);
3525 SvCUR_set(result, out - result_c);
3530 div128(SV *pnum, char *done)
3531 /* must be '\0' terminated */
3535 char *s = SvPV(pnum, len);
3544 i = m * 10 + (*t - '0');
3546 r = (i >> 7); /* r < 10 */
3553 SvCUR_set(pnum, (STRLEN) (t - s));
3560 dSP; dMARK; dORIGMARK; dTARGET;
3561 register SV *cat = TARG;
3564 register char *pat = SvPVx(*++MARK, fromlen);
3565 register char *patend = pat + fromlen;
3570 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3571 static char *space10 = " ";
3573 /* These must not be in registers: */
3582 unsigned Quad_t auquad;
3591 sv_setpvn(cat, "", 0);
3592 while (pat < patend) {
3593 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3594 datumtype = *pat++ & 0xFF;
3595 if (isSPACE(datumtype))
3598 len = strchr("@Xxu", datumtype) ? 0 : items;
3601 else if (isDIGIT(*pat)) {
3603 while (isDIGIT(*pat))
3604 len = (len * 10) + (*pat++ - '0');
3610 croak("Invalid type in pack: '%c'", (int)datumtype);
3611 case ',': /* grandfather in commas but with a warning */
3612 if (commas++ == 0 && dowarn)
3613 warn("Invalid type in pack: '%c'", (int)datumtype);
3616 DIE("%% may only be used in unpack");
3627 if (SvCUR(cat) < len)
3628 DIE("X outside of string");
3635 sv_catpvn(cat, null10, 10);
3638 sv_catpvn(cat, null10, len);
3643 aptr = SvPV(fromstr, fromlen);
3647 sv_catpvn(cat, aptr, len);
3649 sv_catpvn(cat, aptr, fromlen);
3651 if (datumtype == 'A') {
3653 sv_catpvn(cat, space10, 10);
3656 sv_catpvn(cat, space10, len);
3660 sv_catpvn(cat, null10, 10);
3663 sv_catpvn(cat, null10, len);
3670 char *savepat = pat;
3675 aptr = SvPV(fromstr, fromlen);
3680 SvCUR(cat) += (len+7)/8;
3681 SvGROW(cat, SvCUR(cat) + 1);
3682 aptr = SvPVX(cat) + aint;
3687 if (datumtype == 'B') {
3688 for (len = 0; len++ < aint;) {
3689 items |= *pat++ & 1;
3693 *aptr++ = items & 0xff;
3699 for (len = 0; len++ < aint;) {
3705 *aptr++ = items & 0xff;
3711 if (datumtype == 'B')
3712 items <<= 7 - (aint & 7);
3714 items >>= 7 - (aint & 7);
3715 *aptr++ = items & 0xff;
3717 pat = SvPVX(cat) + SvCUR(cat);
3728 char *savepat = pat;
3733 aptr = SvPV(fromstr, fromlen);
3738 SvCUR(cat) += (len+1)/2;
3739 SvGROW(cat, SvCUR(cat) + 1);
3740 aptr = SvPVX(cat) + aint;
3745 if (datumtype == 'H') {
3746 for (len = 0; len++ < aint;) {
3748 items |= ((*pat++ & 15) + 9) & 15;
3750 items |= *pat++ & 15;
3754 *aptr++ = items & 0xff;
3760 for (len = 0; len++ < aint;) {
3762 items |= (((*pat++ & 15) + 9) & 15) << 4;
3764 items |= (*pat++ & 15) << 4;
3768 *aptr++ = items & 0xff;
3774 *aptr++ = items & 0xff;
3775 pat = SvPVX(cat) + SvCUR(cat);
3787 aint = SvIV(fromstr);
3789 sv_catpvn(cat, &achar, sizeof(char));
3792 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3797 afloat = (float)SvNV(fromstr);
3798 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3805 adouble = (double)SvNV(fromstr);
3806 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3812 ashort = (I16)SvIV(fromstr);
3814 ashort = htons(ashort);
3816 CAT16(cat, &ashort);
3822 ashort = (I16)SvIV(fromstr);
3824 ashort = htovs(ashort);
3826 CAT16(cat, &ashort);
3833 ashort = (I16)SvIV(fromstr);
3834 CAT16(cat, &ashort);
3840 auint = SvUV(fromstr);
3841 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3847 adouble = floor(SvNV(fromstr));
3850 croak("Cannot compress negative numbers");
3856 #ifdef CXUX_BROKEN_CONSTANT_CONVERT
3857 adouble <= UV_MAX_cxux
3864 char buf[1 + sizeof(UV)];
3865 char *in = buf + sizeof(buf);
3866 UV auv = U_V(adouble);;
3869 *--in = (auv & 0x7f) | 0x80;
3872 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3873 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3875 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3876 char *from, *result, *in;
3881 /* Copy string and check for compliance */
3882 from = SvPV(fromstr, len);
3883 if ((norm = is_an_int(from, len)) == NULL)
3884 croak("can compress only unsigned integer");
3886 New('w', result, len, char);
3890 *--in = div128(norm, &done) | 0x80;
3891 result[len - 1] &= 0x7F; /* clear continue bit */
3892 sv_catpvn(cat, in, (result + len) - in);
3894 SvREFCNT_dec(norm); /* free norm */
3896 else if (SvNOKp(fromstr)) {
3897 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3898 char *in = buf + sizeof(buf);
3901 double next = floor(adouble / 128);
3902 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3903 if (--in < buf) /* this cannot happen ;-) */
3904 croak ("Cannot compress integer");
3906 } while (adouble > 0);
3907 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3908 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3911 croak("Cannot compress non integer");
3917 aint = SvIV(fromstr);
3918 sv_catpvn(cat, (char*)&aint, sizeof(int));
3924 aulong = SvUV(fromstr);
3926 aulong = htonl(aulong);
3928 CAT32(cat, &aulong);
3934 aulong = SvUV(fromstr);
3936 aulong = htovl(aulong);
3938 CAT32(cat, &aulong);
3944 aulong = SvUV(fromstr);
3945 CAT32(cat, &aulong);
3951 along = SvIV(fromstr);
3959 auquad = (unsigned Quad_t)SvIV(fromstr);
3960 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3966 aquad = (Quad_t)SvIV(fromstr);
3967 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3970 #endif /* HAS_QUAD */
3972 len = 1; /* assume SV is correct length */
3977 if (fromstr == &sv_undef)
3980 /* XXX better yet, could spirit away the string to
3981 * a safe spot and hang on to it until the result
3982 * of pack() (and all copies of the result) are
3985 if (dowarn && (SvTEMP(fromstr) || SvPADTMP(fromstr)))
3986 warn("Attempt to pack pointer to temporary value");
3987 if (SvPOK(fromstr) || SvNIOK(fromstr))
3988 aptr = SvPV(fromstr,na);
3990 aptr = SvPV_force(fromstr,na);
3992 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3997 aptr = SvPV(fromstr, fromlen);
3998 SvGROW(cat, fromlen * 4 / 3);
4003 while (fromlen > 0) {
4010 doencodes(cat, aptr, todo);
4028 register I32 limit = POPi; /* note, negative is forever */
4031 register char *s = SvPV(sv, len);
4032 char *strend = s + len;
4034 register REGEXP *rx;
4038 I32 maxiters = (strend - s) + 10;
4041 I32 origlimit = limit;
4044 AV *oldstack = curstack;
4045 I32 gimme = GIMME_V;
4046 I32 oldsave = savestack_ix;
4049 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
4054 DIE("panic: do_split");
4055 rx = pm->op_pmregexp;
4057 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
4058 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
4060 if (pm->op_pmreplroot)
4061 ary = GvAVn((GV*)pm->op_pmreplroot);
4062 else if (gimme != G_ARRAY)
4064 ary = (AV*)curpad[0];
4067 #endif /* USE_THREADS */
4070 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
4074 for (i = AvFILL(ary); i >= 0; i--)
4075 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
4079 /* temporarily switch stacks */
4080 SWITCHSTACK(curstack, ary);
4082 base = SP - stack_base;
4084 if (pm->op_pmflags & PMf_SKIPWHITE) {
4085 if (pm->op_pmflags & PMf_LOCALE) {
4086 while (isSPACE_LC(*s))
4094 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
4096 multiline = pm->op_pmflags & PMf_MULTILINE;
4100 limit = maxiters + 2;
4101 if (pm->op_pmflags & PMf_WHITE) {
4104 while (m < strend &&
4105 !((pm->op_pmflags & PMf_LOCALE)
4106 ? isSPACE_LC(*m) : isSPACE(*m)))
4111 dstr = NEWSV(30, m-s);
4112 sv_setpvn(dstr, s, m-s);
4118 while (s < strend &&
4119 ((pm->op_pmflags & PMf_LOCALE)
4120 ? isSPACE_LC(*s) : isSPACE(*s)))
4124 else if (strEQ("^", rx->precomp)) {
4127 for (m = s; m < strend && *m != '\n'; m++) ;
4131 dstr = NEWSV(30, m-s);
4132 sv_setpvn(dstr, s, m-s);
4139 else if (pm->op_pmshort && !rx->nparens) {
4140 i = SvCUR(pm->op_pmshort);
4142 i = *SvPVX(pm->op_pmshort);
4145 for (m = s; m < strend && *m != i; m++) ;
4148 dstr = NEWSV(30, m-s);
4149 sv_setpvn(dstr, s, m-s);
4158 while (s < strend && --limit &&
4159 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
4163 dstr = NEWSV(31, m-s);
4164 sv_setpvn(dstr, s, m-s);
4173 maxiters += (strend - s) * rx->nparens;
4174 while (s < strend && --limit &&
4175 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
4177 TAINT_IF(rx->exec_tainted);
4179 && rx->subbase != orig) {
4184 strend = s + (strend - m);
4187 dstr = NEWSV(32, m-s);
4188 sv_setpvn(dstr, s, m-s);
4193 for (i = 1; i <= rx->nparens; i++) {
4197 dstr = NEWSV(33, m-s);
4198 sv_setpvn(dstr, s, m-s);
4201 dstr = NEWSV(33, 0);
4210 LEAVE_SCOPE(oldsave);
4211 iters = (SP - stack_base) - base;
4212 if (iters > maxiters)
4215 /* keep field after final delim? */
4216 if (s < strend || (iters && origlimit)) {
4217 dstr = NEWSV(34, strend-s);
4218 sv_setpvn(dstr, s, strend-s);
4224 else if (!origlimit) {
4225 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
4229 SWITCHSTACK(ary, oldstack);
4230 if (SvSMAGICAL(ary)) {
4235 if (gimme == G_ARRAY) {
4237 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4243 if (gimme == G_ARRAY)
4246 if (iters || !pm->op_pmreplroot) {
4256 unlock_condpair(void *svv)
4259 MAGIC *mg = mg_find((SV*)svv, 'm');
4262 croak("panic: unlock_condpair unlocking non-mutex");
4263 MUTEX_LOCK(MgMUTEXP(mg));
4264 if (MgOWNER(mg) != thr)
4265 croak("panic: unlock_condpair unlocking mutex that we don't own");
4267 COND_SIGNAL(MgOWNERCONDP(mg));
4268 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: unlock 0x%lx\n",
4269 (unsigned long)thr, (unsigned long)svv);)
4270 MUTEX_UNLOCK(MgMUTEXP(mg));
4272 #endif /* USE_THREADS */
4285 mg = condpair_magic(sv);
4286 MUTEX_LOCK(MgMUTEXP(mg));
4287 if (MgOWNER(mg) == thr)
4288 MUTEX_UNLOCK(MgMUTEXP(mg));
4291 COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg));
4293 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "0x%lx: pp_lock lock 0x%lx\n",
4294 (unsigned long)thr, (unsigned long)sv);)
4295 MUTEX_UNLOCK(MgMUTEXP(mg));
4296 SvREFCNT_inc(sv); /* keep alive until magic_mutexfree */
4297 save_destructor(unlock_condpair, sv);
4299 #endif /* USE_THREADS */
4300 if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV
4301 || SvTYPE(retsv) == SVt_PVCV) {
4302 retsv = refto(retsv);
4312 SV **svp = av_fetch(thr->specific, op->op_targ, TRUE);
4313 XPUSHs(svp ? *svp : &sv_undef);
4315 DIE("tried to access thread-specific data in non-threaded perl");
4316 #endif /* USE_THREADS */