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);
30 * Types used in bitwise operations.
32 * Normally we'd just use IV and UV. However, some hardware and
33 * software combinations (e.g. Alpha and current OSF/1) don't have a
34 * floating-point type to use for NV that has adequate bits to fully
35 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
37 * It just so happens that "int" is the right size almost everywhere.
43 * Mask used after bitwise operations.
45 * There is at least one realm (Cray word machines) that doesn't
46 * have an integral type (except char) small enough to be represented
47 * in a double without loss; that is, it has no 32-bit type.
49 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
51 # define BW_MASK ((1 << BW_BITS) - 1)
52 # define BW_SIGN (1 << (BW_BITS - 1))
53 # define BWi(i) (((i) & BW_SIGN) ? ((i) | ~BW_MASK) : ((i) & BW_MASK))
54 # define BWu(u) ((u) & BW_MASK)
61 * Offset for integer pack/unpack.
63 * On architectures where I16 and I32 aren't really 16 and 32 bits,
64 * which for now are all Crays, pack and unpack have to play games.
68 * These values are required for portability of pack() output.
69 * If they're not right on your machine, then pack() and unpack()
70 * wouldn't work right anyway; you'll need to apply the Cray hack.
71 * (I'd like to check them with #if, but you can't use sizeof() in
77 #if BYTEORDER > 0xFFFF && defined(_CRAY) && !defined(_CRAYMPP)
78 # if BYTEORDER == 0x12345678
79 # define OFF16(p) (char*)(p)
80 # define OFF32(p) (char*)(p)
82 # if BYTEORDER == 0x87654321
83 # define OFF16(p) ((char*)(p) + (sizeof(U16) - SIZE16))
84 # define OFF32(p) ((char*)(p) + (sizeof(U32) - SIZE32))
86 }}}} bad cray byte order
89 # define COPY16(s,p) (*(p) = 0, Copy(s, OFF16(p), SIZE16, char))
90 # define COPY32(s,p) (*(p) = 0, Copy(s, OFF32(p), SIZE32, char))
91 # define CAT16(sv,p) sv_catpvn(sv, OFF16(p), SIZE16)
92 # define CAT32(sv,p) sv_catpvn(sv, OFF32(p), SIZE32)
94 # define COPY16(s,p) Copy(s, p, SIZE16, char)
95 # define COPY32(s,p) Copy(s, p, SIZE32, char)
96 # define CAT16(sv,p) sv_catpvn(sv, (char*)(p), SIZE16)
97 # define CAT32(sv,p) sv_catpvn(sv, (char*)(p), SIZE32)
100 static void doencodes _((SV* sv, char* s, I32 len));
101 static SV* refto _((SV* sv));
102 static U32 seed _((void));
104 static bool srand_called = FALSE;
106 /* variations on pp_null */
111 if (GIMME_V == G_SCALAR)
126 if (op->op_private & OPpLVAL_INTRO)
127 SAVECLEARSV(curpad[op->op_targ]);
129 if (op->op_flags & OPf_REF) {
133 if (GIMME == G_ARRAY) {
134 I32 maxarg = AvFILL((AV*)TARG) + 1;
136 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
140 SV* sv = sv_newmortal();
141 I32 maxarg = AvFILL((AV*)TARG) + 1;
142 sv_setiv(sv, maxarg);
154 if (op->op_private & OPpLVAL_INTRO)
155 SAVECLEARSV(curpad[op->op_targ]);
156 if (op->op_flags & OPf_REF)
159 if (gimme == G_ARRAY) {
160 RETURNOP(do_kv(ARGS));
162 else if (gimme == G_SCALAR) {
163 SV* sv = sv_newmortal();
164 if (HvFILL((HV*)TARG))
165 sv_setpvf(sv, "%ld/%ld",
166 (long)HvFILL((HV*)TARG), (long)HvMAX((HV*)TARG) + 1);
176 DIE("NOT IMPL LINE %d",__LINE__);
188 if (SvTYPE(sv) == SVt_PVIO) {
189 GV *gv = (GV*) sv_newmortal();
190 gv_init(gv, 0, "", 0, 0);
191 GvIOp(gv) = (IO *)sv;
192 (void)SvREFCNT_inc(sv);
194 } else if (SvTYPE(sv) != SVt_PVGV)
195 DIE("Not a GLOB reference");
198 if (SvTYPE(sv) != SVt_PVGV) {
201 if (SvGMAGICAL(sv)) {
207 if (op->op_flags & OPf_REF ||
208 op->op_private & HINT_STRICT_REFS)
209 DIE(no_usym, "a symbol");
215 if (op->op_private & HINT_STRICT_REFS)
216 DIE(no_symref, sym, "a symbol");
217 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
220 if (op->op_private & OPpLVAL_INTRO)
221 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
233 switch (SvTYPE(sv)) {
237 DIE("Not a SCALAR reference");
244 if (SvTYPE(gv) != SVt_PVGV) {
245 if (SvGMAGICAL(sv)) {
251 if (op->op_flags & OPf_REF ||
252 op->op_private & HINT_STRICT_REFS)
253 DIE(no_usym, "a SCALAR");
259 if (op->op_private & HINT_STRICT_REFS)
260 DIE(no_symref, sym, "a SCALAR");
261 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
265 if (op->op_flags & OPf_MOD) {
266 if (op->op_private & OPpLVAL_INTRO)
267 sv = save_scalar((GV*)TOPs);
268 else if (op->op_private & OPpDEREF)
269 vivify_ref(sv, op->op_private & OPpDEREF);
279 SV *sv = AvARYLEN(av);
281 AvARYLEN(av) = sv = NEWSV(0,0);
282 sv_upgrade(sv, SVt_IV);
283 sv_magic(sv, (SV*)av, '#', Nullch, 0);
291 dSP; dTARGET; dPOPss;
293 if (op->op_flags & OPf_MOD) {
294 if (SvTYPE(TARG) < SVt_PVLV) {
295 sv_upgrade(TARG, SVt_PVLV);
296 sv_magic(TARG, Nullsv, '.', Nullch, 0);
301 PUSHs(TARG); /* no SvSETMAGIC */
307 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
308 mg = mg_find(sv, 'g');
309 if (mg && mg->mg_len >= 0) {
310 PUSHi(mg->mg_len + curcop->cop_arybase);
324 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
325 /* (But not in defined().) */
326 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
329 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
346 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
348 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
356 CV* cv = (CV*)curpad[op->op_targ];
358 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
374 if (GIMME != G_ARRAY) {
378 EXTEND_MORTAL(SP - MARK);
380 *MARK = refto(*MARK);
390 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
393 if (!(sv = LvTARG(sv)))
396 else if (SvPADTMP(sv))
400 (void)SvREFCNT_inc(sv);
403 sv_upgrade(rv, SVt_RV);
417 if (sv && SvGMAGICAL(sv))
420 if (!sv || !SvROK(sv))
424 pv = sv_reftype(sv,TRUE);
425 PUSHp(pv, strlen(pv));
435 stash = curcop->cop_stash;
437 stash = gv_stashsv(POPs, TRUE);
439 (void)sv_bless(TOPs, stash);
443 /* Pattern matching */
448 register unsigned char *s;
451 register I32 *sfirst;
455 if (sv == lastscream) {
461 SvSCREAM_off(lastscream);
462 SvREFCNT_dec(lastscream);
464 lastscream = SvREFCNT_inc(sv);
467 s = (unsigned char*)(SvPV(sv, len));
471 if (pos > maxscream) {
473 maxscream = pos + 80;
474 New(301, screamfirst, 256, I32);
475 New(302, screamnext, maxscream, I32);
478 maxscream = pos + pos / 4;
479 Renew(screamnext, maxscream, I32);
483 sfirst = screamfirst;
486 if (!sfirst || !snext)
487 DIE("do_study: out of memory");
489 for (ch = 256; ch; --ch)
496 snext[pos] = sfirst[ch] - pos;
503 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
512 if (op->op_flags & OPf_STACKED)
518 TARG = sv_newmortal();
519 PUSHi(do_trans(sv, op));
523 /* Lvalue operators. */
545 SETi(do_chomp(TOPs));
552 register I32 count = 0;
555 count += do_chomp(POPs);
566 if (!sv || !SvANY(sv))
568 switch (SvTYPE(sv)) {
570 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
574 if (HvARRAY(sv) || SvRMAGICAL(sv))
578 if (CvROOT(sv) || CvXSUB(sv))
595 if (!op->op_private) {
604 if (SvTHINKFIRST(sv)) {
611 switch (SvTYPE(sv)) {
621 if (cv_const_sv((CV*)sv))
622 warn("Constant subroutine %s undefined",
623 CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv)));
626 { GV* gv = (GV*)SvREFCNT_inc(CvGV((CV*)sv));
628 CvGV((CV*)sv) = gv; } /* let user-undef'd sub keep its identity */
632 sv_setsv(sv, &sv_undef);
635 if (SvTYPE(sv) >= SVt_PV && SvPVX(sv) && SvLEN(sv)) {
638 SvPV_set(sv, Nullch);
651 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
653 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
654 SvIVX(TOPs) != IV_MIN)
657 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
668 if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
670 sv_setsv(TARG, TOPs);
671 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
672 SvIVX(TOPs) != IV_MAX)
675 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
689 if(SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV)
691 sv_setsv(TARG, TOPs);
692 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
693 SvIVX(TOPs) != IV_MIN)
696 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
705 /* Ordinary operators. */
709 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
712 SETn( pow( left, right) );
719 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
722 SETn( left * right );
729 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
734 DIE("Illegal division by zero");
736 /* insure that 20./5. == 4. */
739 if ((double)I_V(left) == left &&
740 (double)I_V(right) == right &&
741 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
744 value = left / right;
748 value = left / right;
757 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
765 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
767 right = (right_neg = (i < 0)) ? -i : i;
771 right = U_V((right_neg = (n < 0)) ? -n : n);
774 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
776 left = (left_neg = (i < 0)) ? -i : i;
780 left = U_V((left_neg = (n < 0)) ? -n : n);
784 DIE("Illegal modulus zero");
787 if ((left_neg != right_neg) && ans)
790 /* XXX may warn: unary minus operator applied to unsigned type */
791 /* could change -foo to be (~foo)+1 instead */
792 if (ans <= -(UV)IV_MAX)
793 sv_setiv(TARG, (IV) -ans);
795 sv_setnv(TARG, -(double)ans);
806 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
808 register I32 count = POPi;
809 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
811 I32 items = SP - MARK;
823 repeatcpy((char*)(MARK + items), (char*)MARK,
824 items * sizeof(SV*), count - 1);
830 else { /* Note: mark already snarfed by pp_list */
835 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
836 if (SvREADONLY(tmpstr) && curcop != &compiling)
837 DIE("Can't x= to readonly value");
841 SvSetSV(TARG, tmpstr);
842 SvPV_force(TARG, len);
847 SvGROW(TARG, (count * len) + 1);
848 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
849 SvCUR(TARG) *= count;
853 (void)SvPOK_only(TARG);
862 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
865 SETn( left - right );
872 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
875 if (op->op_private & HINT_INTEGER) {
891 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
894 if (op->op_private & HINT_INTEGER) {
910 dSP; tryAMAGICbinSET(lt,0);
913 SETs(boolSV(TOPn < value));
920 dSP; tryAMAGICbinSET(gt,0);
923 SETs(boolSV(TOPn > value));
930 dSP; tryAMAGICbinSET(le,0);
933 SETs(boolSV(TOPn <= value));
940 dSP; tryAMAGICbinSET(ge,0);
943 SETs(boolSV(TOPn >= value));
950 dSP; tryAMAGICbinSET(ne,0);
953 SETs(boolSV(TOPn != value));
960 dSP; dTARGET; tryAMAGICbin(ncmp,0);
967 else if (left < right)
969 else if (left > right)
982 dSP; tryAMAGICbinSET(slt,0);
985 int cmp = ((op->op_private & OPpLOCALE)
986 ? sv_cmp_locale(left, right)
987 : sv_cmp(left, right));
988 SETs(boolSV(cmp < 0));
995 dSP; tryAMAGICbinSET(sgt,0);
998 int cmp = ((op->op_private & OPpLOCALE)
999 ? sv_cmp_locale(left, right)
1000 : sv_cmp(left, right));
1001 SETs(boolSV(cmp > 0));
1008 dSP; tryAMAGICbinSET(sle,0);
1011 int cmp = ((op->op_private & OPpLOCALE)
1012 ? sv_cmp_locale(left, right)
1013 : sv_cmp(left, right));
1014 SETs(boolSV(cmp <= 0));
1021 dSP; tryAMAGICbinSET(sge,0);
1024 int cmp = ((op->op_private & OPpLOCALE)
1025 ? sv_cmp_locale(left, right)
1026 : sv_cmp(left, right));
1027 SETs(boolSV(cmp >= 0));
1034 dSP; tryAMAGICbinSET(seq,0);
1037 SETs(boolSV(sv_eq(left, right)));
1044 dSP; tryAMAGICbinSET(sne,0);
1047 SETs(boolSV(!sv_eq(left, right)));
1054 dSP; dTARGET; tryAMAGICbin(scmp,0);
1057 int cmp = ((op->op_private & OPpLOCALE)
1058 ? sv_cmp_locale(left, right)
1059 : sv_cmp(left, right));
1067 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
1070 if (SvNIOKp(left) || SvNIOKp(right)) {
1071 if (op->op_private & HINT_INTEGER) {
1072 IBW value = SvIV(left) & SvIV(right);
1076 UBW value = SvUV(left) & SvUV(right);
1081 do_vop(op->op_type, TARG, left, right);
1090 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
1093 if (SvNIOKp(left) || SvNIOKp(right)) {
1094 if (op->op_private & HINT_INTEGER) {
1095 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
1099 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
1104 do_vop(op->op_type, TARG, left, right);
1113 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1116 if (SvNIOKp(left) || SvNIOKp(right)) {
1117 if (op->op_private & HINT_INTEGER) {
1118 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1122 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1127 do_vop(op->op_type, TARG, left, right);
1136 dSP; dTARGET; tryAMAGICun(neg);
1141 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1143 else if (SvNIOKp(sv))
1145 else if (SvPOKp(sv)) {
1147 char *s = SvPV(sv, len);
1148 if (isIDFIRST(*s)) {
1149 sv_setpvn(TARG, "-", 1);
1152 else if (*s == '+' || *s == '-') {
1154 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1157 sv_setnv(TARG, -SvNV(sv));
1169 dSP; tryAMAGICunSET(not);
1170 #endif /* OVERLOAD */
1171 *stack_sp = boolSV(!SvTRUE(*stack_sp));
1177 dSP; dTARGET; tryAMAGICun(compl);
1181 if (op->op_private & HINT_INTEGER) {
1182 IBW value = ~SvIV(sv);
1186 UBW value = ~SvUV(sv);
1191 register char *tmps;
1192 register long *tmpl;
1197 tmps = SvPV_force(TARG, len);
1200 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1203 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1207 for ( ; anum > 0; anum--, tmps++)
1216 /* integer versions of some of the above */
1220 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1223 SETi( left * right );
1230 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1234 DIE("Illegal division by zero");
1235 value = POPi / value;
1243 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1247 DIE("Illegal modulus zero");
1248 SETi( left % right );
1255 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1258 SETi( left + right );
1265 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1268 SETi( left - right );
1275 dSP; tryAMAGICbinSET(lt,0);
1278 SETs(boolSV(left < right));
1285 dSP; tryAMAGICbinSET(gt,0);
1288 SETs(boolSV(left > right));
1295 dSP; tryAMAGICbinSET(le,0);
1298 SETs(boolSV(left <= right));
1305 dSP; tryAMAGICbinSET(ge,0);
1308 SETs(boolSV(left >= right));
1315 dSP; tryAMAGICbinSET(eq,0);
1318 SETs(boolSV(left == right));
1325 dSP; tryAMAGICbinSET(ne,0);
1328 SETs(boolSV(left != right));
1335 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1342 else if (left < right)
1353 dSP; dTARGET; tryAMAGICun(neg);
1358 /* High falutin' math. */
1362 dSP; dTARGET; tryAMAGICbin(atan2,0);
1365 SETn(atan2(left, right));
1372 dSP; dTARGET; tryAMAGICun(sin);
1384 dSP; dTARGET; tryAMAGICun(cos);
1404 if (!srand_called) {
1405 (void)srand((unsigned)seed());
1406 srand_called = TRUE;
1409 value = rand() * value / 2147483648.0;
1412 value = rand() * value / 65536.0;
1415 value = rand() * value / 32768.0;
1417 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1433 (void)srand((unsigned)anum);
1434 srand_called = TRUE;
1443 * This is really just a quick hack which grabs various garbage
1444 * values. It really should be a real hash algorithm which
1445 * spreads the effect of every input bit onto every output bit,
1446 * if someone who knows about such tings would bother to write it.
1447 * Might be a good idea to add that function to CORE as well.
1448 * No numbers below come from careful analysis or anyting here,
1449 * except they are primes and SEED_C1 > 1E6 to get a full-width
1450 * value from (tv_sec * SEED_C1 + tv_usec). The multipliers should
1451 * probably be bigger too.
1454 # define SEED_C1 1000003
1455 #define SEED_C4 73819
1457 # define SEED_C1 25747
1458 #define SEED_C4 20639
1462 #define SEED_C5 26107
1466 # include <starlet.h>
1467 /* when[] = (low 32 bits, high 32 bits) of time since epoch
1468 * in 100-ns units, typically incremented ever 10 ms. */
1469 unsigned int when[2];
1470 _ckvmssts(sys$gettim(when));
1471 u = (U32)SEED_C1 * when[0] + (U32)SEED_C2 * when[1];
1473 # ifdef HAS_GETTIMEOFDAY
1474 struct timeval when;
1475 gettimeofday(&when,(struct timezone *) 0);
1476 u = (U32)SEED_C1 * when.tv_sec + (U32)SEED_C2 * when.tv_usec;
1480 u = (U32)SEED_C1 * when;
1483 u += SEED_C3 * (U32)getpid();
1484 u += SEED_C4 * (U32)(UV)stack_sp;
1485 #ifndef PLAN9 /* XXX Plan9 assembler chokes on this; fix needed */
1486 u += SEED_C5 * (U32)(UV)&when;
1493 dSP; dTARGET; tryAMAGICun(exp);
1505 dSP; dTARGET; tryAMAGICun(log);
1510 SET_NUMERIC_STANDARD();
1511 DIE("Can't take log of %g", value);
1521 dSP; dTARGET; tryAMAGICun(sqrt);
1526 SET_NUMERIC_STANDARD();
1527 DIE("Can't take sqrt of %g", value);
1529 value = sqrt(value);
1539 double value = TOPn;
1542 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1548 (void)modf(value, &value);
1550 (void)modf(-value, &value);
1565 dSP; dTARGET; tryAMAGICun(abs);
1567 double value = TOPn;
1570 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1571 (iv = SvIVX(TOPs)) != IV_MIN) {
1592 XPUSHu(scan_hex(tmps, 99, &argtype));
1604 while (*tmps && isSPACE(*tmps))
1609 value = scan_hex(++tmps, 99, &argtype);
1611 value = scan_oct(tmps, 99, &argtype);
1621 SETi( sv_len(TOPs) );
1634 I32 lvalue = op->op_flags & OPf_MOD;
1636 I32 arybase = curcop->cop_arybase;
1642 tmps = SvPV(sv, curlen);
1643 if (pos >= arybase) {
1661 else if (len >= 0) {
1663 if (rem > (I32)curlen)
1677 if (dowarn || lvalue)
1678 warn("substr outside of string");
1683 sv_setpvn(TARG, tmps, rem);
1684 if (lvalue) { /* it's an lvalue! */
1685 if (!SvGMAGICAL(sv)) {
1689 warn("Attempt to use reference as lvalue in substr");
1691 if (SvOK(sv)) /* is it defined ? */
1692 (void)SvPOK_only(sv);
1694 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1697 if (SvTYPE(TARG) < SVt_PVLV) {
1698 sv_upgrade(TARG, SVt_PVLV);
1699 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1704 LvTARGOFF(TARG) = pos;
1705 LvTARGLEN(TARG) = rem;
1708 PUSHs(TARG); /* avoid SvSETMAGIC here */
1715 register I32 size = POPi;
1716 register I32 offset = POPi;
1717 register SV *src = POPs;
1718 I32 lvalue = op->op_flags & OPf_MOD;
1720 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1721 unsigned long retnum;
1724 offset *= size; /* turn into bit offset */
1725 len = (offset + size + 7) / 8;
1726 if (offset < 0 || size < 1)
1729 if (lvalue) { /* it's an lvalue! */
1730 if (SvTYPE(TARG) < SVt_PVLV) {
1731 sv_upgrade(TARG, SVt_PVLV);
1732 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1737 LvTARGOFF(TARG) = offset;
1738 LvTARGLEN(TARG) = size;
1746 if (offset >= srclen)
1749 retnum = (unsigned long) s[offset] << 8;
1751 else if (size == 32) {
1752 if (offset >= srclen)
1754 else if (offset + 1 >= srclen)
1755 retnum = (unsigned long) s[offset] << 24;
1756 else if (offset + 2 >= srclen)
1757 retnum = ((unsigned long) s[offset] << 24) +
1758 ((unsigned long) s[offset + 1] << 16);
1760 retnum = ((unsigned long) s[offset] << 24) +
1761 ((unsigned long) s[offset + 1] << 16) +
1762 (s[offset + 2] << 8);
1767 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1772 else if (size == 16)
1773 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1774 else if (size == 32)
1775 retnum = ((unsigned long) s[offset] << 24) +
1776 ((unsigned long) s[offset + 1] << 16) +
1777 (s[offset + 2] << 8) + s[offset+3];
1781 sv_setiv(TARG, (IV)retnum);
1796 I32 arybase = curcop->cop_arybase;
1801 offset = POPi - arybase;
1804 tmps = SvPV(big, biglen);
1807 else if (offset > biglen)
1809 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1810 (unsigned char*)tmps + biglen, little)))
1811 retval = -1 + arybase;
1813 retval = tmps2 - tmps + arybase;
1830 I32 arybase = curcop->cop_arybase;
1836 tmps2 = SvPV(little, llen);
1837 tmps = SvPV(big, blen);
1841 offset = SvIV(offstr) - arybase + llen;
1844 else if (offset > blen)
1846 if (!(tmps2 = rninstr(tmps, tmps + offset,
1847 tmps2, tmps2 + llen)))
1848 retval = -1 + arybase;
1850 retval = tmps2 - tmps + arybase;
1857 dSP; dMARK; dORIGMARK; dTARGET;
1858 #ifdef USE_LOCALE_NUMERIC
1859 if (op->op_private & OPpLOCALE)
1860 SET_NUMERIC_LOCAL();
1862 SET_NUMERIC_STANDARD();
1864 do_sprintf(TARG, SP-MARK, MARK+1);
1865 TAINT_IF(SvTAINTED(TARG));
1879 value = (I32) (*tmps & 255);
1884 value = (I32) (anum & 255);
1895 (void)SvUPGRADE(TARG,SVt_PV);
1901 (void)SvPOK_only(TARG);
1908 dSP; dTARGET; dPOPTOPssrl;
1910 char *tmps = SvPV(left, na);
1912 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1914 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1918 "The crypt() function is unimplemented due to excessive paranoia.");
1930 if (!SvPADTMP(sv)) {
1936 s = SvPV_force(sv, na);
1938 if (op->op_private & OPpLOCALE) {
1941 *s = toUPPER_LC(*s);
1956 if (!SvPADTMP(sv)) {
1962 s = SvPV_force(sv, na);
1964 if (op->op_private & OPpLOCALE) {
1967 *s = toLOWER_LC(*s);
1984 if (!SvPADTMP(sv)) {
1991 s = SvPV_force(sv, len);
1993 register char *send = s + len;
1995 if (op->op_private & OPpLOCALE) {
1998 for (; s < send; s++)
1999 *s = toUPPER_LC(*s);
2002 for (; s < send; s++)
2016 if (!SvPADTMP(sv)) {
2023 s = SvPV_force(sv, len);
2025 register char *send = s + len;
2027 if (op->op_private & OPpLOCALE) {
2030 for (; s < send; s++)
2031 *s = toLOWER_LC(*s);
2034 for (; s < send; s++)
2046 register char *s = SvPV(sv,len);
2050 (void)SvUPGRADE(TARG, SVt_PV);
2051 SvGROW(TARG, (len * 2) + 1);
2059 SvCUR_set(TARG, d - SvPVX(TARG));
2060 (void)SvPOK_only(TARG);
2063 sv_setpvn(TARG, s, len);
2072 dSP; dMARK; dORIGMARK;
2074 register AV* av = (AV*)POPs;
2075 register I32 lval = op->op_flags & OPf_MOD;
2076 I32 arybase = curcop->cop_arybase;
2079 if (SvTYPE(av) == SVt_PVAV) {
2080 if (lval && op->op_private & OPpLVAL_INTRO) {
2082 for (svp = mark + 1; svp <= sp; svp++) {
2087 if (max > AvMAX(av))
2090 while (++MARK <= SP) {
2091 elem = SvIVx(*MARK);
2095 svp = av_fetch(av, elem, lval);
2097 if (!svp || *svp == &sv_undef)
2098 DIE(no_aelem, elem);
2099 if (op->op_private & OPpLVAL_INTRO)
2102 *MARK = svp ? *svp : &sv_undef;
2105 if (GIMME != G_ARRAY) {
2113 /* Associative arrays. */
2118 HV *hash = (HV*)POPs;
2120 I32 gimme = GIMME_V;
2123 entry = hv_iternext(hash); /* might clobber stack_sp */
2128 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
2129 if (gimme == G_ARRAY) {
2131 sv_setsv(TARG, hv_iterval(hash, entry)); /* might hit stack_sp */
2136 else if (gimme == G_SCALAR)
2155 I32 gimme = GIMME_V;
2156 I32 discard = (gimme == G_VOID) ? G_DISCARD : 0;
2160 if (op->op_private & OPpSLICE) {
2163 if (SvTYPE(hv) != SVt_PVHV)
2164 DIE("Not a HASH reference");
2165 while (++MARK <= SP) {
2166 sv = hv_delete_ent(hv, *MARK, discard, 0);
2167 *MARK = sv ? sv : &sv_undef;
2171 else if (gimme == G_SCALAR) {
2180 if (SvTYPE(hv) != SVt_PVHV)
2181 DIE("Not a HASH reference");
2182 sv = hv_delete_ent(hv, keysv, discard, 0);
2197 if (SvTYPE(hv) != SVt_PVHV) {
2198 DIE("Not a HASH reference");
2200 if (hv_exists_ent(hv, tmpsv, 0))
2207 dSP; dMARK; dORIGMARK;
2209 register HV *hv = (HV*)POPs;
2210 register I32 lval = op->op_flags & OPf_MOD;
2212 if (SvTYPE(hv) == SVt_PVHV) {
2213 while (++MARK <= SP) {
2216 he = hv_fetch_ent(hv, keysv, lval, 0);
2218 if (!he || HeVAL(he) == &sv_undef)
2219 DIE(no_helem, SvPV(keysv, na));
2220 if (op->op_private & OPpLVAL_INTRO)
2221 save_svref(&HeVAL(he));
2223 *MARK = he ? HeVAL(he) : &sv_undef;
2226 if (GIMME != G_ARRAY) {
2234 /* List operators. */
2239 if (GIMME != G_ARRAY) {
2241 *MARK = *SP; /* unwanted list, return last item */
2252 SV **lastrelem = stack_sp;
2253 SV **lastlelem = stack_base + POPMARK;
2254 SV **firstlelem = stack_base + POPMARK + 1;
2255 register SV **firstrelem = lastlelem + 1;
2256 I32 arybase = curcop->cop_arybase;
2257 I32 lval = op->op_flags & OPf_MOD;
2258 I32 is_something_there = lval;
2260 register I32 max = lastrelem - lastlelem;
2261 register SV **lelem;
2264 if (GIMME != G_ARRAY) {
2265 ix = SvIVx(*lastlelem);
2270 if (ix < 0 || ix >= max)
2271 *firstlelem = &sv_undef;
2273 *firstlelem = firstrelem[ix];
2279 SP = firstlelem - 1;
2283 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2289 else if (!(*lelem = firstrelem[ix]))
2294 if (ix >= max || !(*lelem = firstrelem[ix]))
2297 if (!is_something_there && (SvOK(*lelem) || SvGMAGICAL(*lelem)))
2298 is_something_there = TRUE;
2300 if (is_something_there)
2303 SP = firstlelem - 1;
2309 dSP; dMARK; dORIGMARK;
2310 I32 items = SP - MARK;
2311 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2312 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2319 dSP; dMARK; dORIGMARK;
2320 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2324 SV *val = NEWSV(46, 0);
2326 sv_setsv(val, *++MARK);
2328 warn("Odd number of elements in hash list");
2329 (void)hv_store_ent(hv,key,val,0);
2338 dSP; dMARK; dORIGMARK;
2339 register AV *ary = (AV*)*++MARK;
2343 register I32 offset;
2344 register I32 length;
2353 offset = i = SvIVx(*MARK);
2355 offset += AvFILL(ary) + 1;
2357 offset -= curcop->cop_arybase;
2361 length = SvIVx(*MARK++);
2366 length = AvMAX(ary) + 1; /* close enough to infinity */
2370 length = AvMAX(ary) + 1;
2372 if (offset > AvFILL(ary) + 1)
2373 offset = AvFILL(ary) + 1;
2374 after = AvFILL(ary) + 1 - (offset + length);
2375 if (after < 0) { /* not that much array */
2376 length += after; /* offset+length now in array */
2382 /* At this point, MARK .. SP-1 is our new LIST */
2385 diff = newlen - length;
2387 if (diff < 0) { /* shrinking the area */
2389 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2390 Copy(MARK, tmparyval, newlen, SV*);
2393 MARK = ORIGMARK + 1;
2394 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2395 MEXTEND(MARK, length);
2396 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2398 EXTEND_MORTAL(length);
2399 for (i = length, dst = MARK; i; i--) {
2400 if (!SvIMMORTAL(*dst))
2401 sv_2mortal(*dst); /* free them eventualy */
2408 *MARK = AvARRAY(ary)[offset+length-1];
2410 if (!SvIMMORTAL(*MARK))
2412 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2413 SvREFCNT_dec(*dst++); /* free them now */
2416 AvFILL(ary) += diff;
2418 /* pull up or down? */
2420 if (offset < after) { /* easier to pull up */
2421 if (offset) { /* esp. if nothing to pull */
2422 src = &AvARRAY(ary)[offset-1];
2423 dst = src - diff; /* diff is negative */
2424 for (i = offset; i > 0; i--) /* can't trust Copy */
2428 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2432 if (after) { /* anything to pull down? */
2433 src = AvARRAY(ary) + offset + length;
2434 dst = src + diff; /* diff is negative */
2435 Move(src, dst, after, SV*);
2437 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2438 /* avoid later double free */
2442 dst[--i] = &sv_undef;
2445 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2447 *dst = NEWSV(46, 0);
2448 sv_setsv(*dst++, *src++);
2450 Safefree(tmparyval);
2453 else { /* no, expanding (or same) */
2455 New(452, tmparyval, length, SV*); /* so remember deletion */
2456 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2459 if (diff > 0) { /* expanding */
2461 /* push up or down? */
2463 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2467 Move(src, dst, offset, SV*);
2469 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2471 AvFILL(ary) += diff;
2474 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2475 av_extend(ary, AvFILL(ary) + diff);
2476 AvFILL(ary) += diff;
2479 dst = AvARRAY(ary) + AvFILL(ary);
2481 for (i = after; i; i--) {
2488 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2489 *dst = NEWSV(46, 0);
2490 sv_setsv(*dst++, *src++);
2492 MARK = ORIGMARK + 1;
2493 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2495 Copy(tmparyval, MARK, length, SV*);
2497 EXTEND_MORTAL(length);
2498 for (i = length, dst = MARK; i; i--) {
2499 if (!SvIMMORTAL(*dst))
2500 sv_2mortal(*dst); /* free them eventualy */
2504 Safefree(tmparyval);
2508 else if (length--) {
2509 *MARK = tmparyval[length];
2511 if (!SvIMMORTAL(*MARK))
2513 while (length-- > 0)
2514 SvREFCNT_dec(tmparyval[length]);
2516 Safefree(tmparyval);
2527 dSP; dMARK; dORIGMARK; dTARGET;
2528 register AV *ary = (AV*)*++MARK;
2529 register SV *sv = &sv_undef;
2531 for (++MARK; MARK <= SP; MARK++) {
2534 sv_setsv(sv, *MARK);
2538 PUSHi( AvFILL(ary) + 1 );
2546 SV *sv = av_pop(av);
2547 if (!SvIMMORTAL(sv) && AvREAL(av))
2548 (void)sv_2mortal(sv);
2557 SV *sv = av_shift(av);
2561 if (!SvIMMORTAL(sv) && AvREAL(av))
2562 (void)sv_2mortal(sv);
2569 dSP; dMARK; dORIGMARK; dTARGET;
2570 register AV *ary = (AV*)*++MARK;
2574 av_unshift(ary, SP - MARK);
2577 sv_setsv(sv, *++MARK);
2578 (void)av_store(ary, i++, sv);
2582 PUSHi( AvFILL(ary) + 1 );
2592 if (GIMME == G_ARRAY) {
2603 register char *down;
2609 do_join(TARG, &sv_no, MARK, SP);
2611 sv_setsv(TARG, (SP > MARK) ? *SP : GvSV(defgv));
2612 up = SvPV_force(TARG, len);
2614 down = SvPVX(TARG) + len - 1;
2620 (void)SvPOK_only(TARG);
2634 char *s = SvPV(sv, len);
2638 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2639 SV *new = newSVpv("0000000000", 10);
2642 SvREFCNT_dec(sv); /* free old sv */
2647 while (!*t) /* trailing '\0'? */
2650 i = ((*t - '0') << 7) + m;
2651 *(t--) = '0' + (i % 10);
2657 /* Explosives and implosives. */
2664 I32 gimme = GIMME_V;
2668 register char *pat = SvPV(left, llen);
2669 register char *s = SvPV(right, rlen);
2670 char *strend = s + rlen;
2672 register char *patend = pat + llen;
2677 /* These must not be in registers: */
2688 unsigned Quad_t auquad;
2694 register U32 culong;
2696 static char* bitcount = 0;
2698 if (gimme != G_ARRAY) { /* arrange to do first one only */
2700 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2701 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2703 while (isDIGIT(*patend) || *patend == '*')
2709 while (pat < patend) {
2711 datumtype = *pat++ & 0xFF;
2712 if (isSPACE(datumtype))
2716 else if (*pat == '*') {
2717 len = strend - strbeg; /* long enough */
2720 else if (isDIGIT(*pat)) {
2722 while (isDIGIT(*pat))
2723 len = (len * 10) + (*pat++ - '0');
2726 len = (datumtype != '@');
2729 croak("Invalid type in unpack: '%c'", (int)datumtype);
2731 if (len == 1 && pat[-1] != '1')
2740 if (len > strend - strbeg)
2741 DIE("@ outside of string");
2745 if (len > s - strbeg)
2746 DIE("X outside of string");
2750 if (len > strend - s)
2751 DIE("x outside of string");
2756 if (len > strend - s)
2759 goto uchar_checksum;
2760 sv = NEWSV(35, len);
2761 sv_setpvn(sv, s, len);
2763 if (datumtype == 'A') {
2764 aptr = s; /* borrow register */
2765 s = SvPVX(sv) + len - 1;
2766 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2769 SvCUR_set(sv, s - SvPVX(sv));
2770 s = aptr; /* unborrow register */
2772 XPUSHs(sv_2mortal(sv));
2776 if (pat[-1] == '*' || len > (strend - s) * 8)
2777 len = (strend - s) * 8;
2780 Newz(601, bitcount, 256, char);
2781 for (bits = 1; bits < 256; bits++) {
2782 if (bits & 1) bitcount[bits]++;
2783 if (bits & 2) bitcount[bits]++;
2784 if (bits & 4) bitcount[bits]++;
2785 if (bits & 8) bitcount[bits]++;
2786 if (bits & 16) bitcount[bits]++;
2787 if (bits & 32) bitcount[bits]++;
2788 if (bits & 64) bitcount[bits]++;
2789 if (bits & 128) bitcount[bits]++;
2793 culong += bitcount[*(unsigned char*)s++];
2798 if (datumtype == 'b') {
2800 if (bits & 1) culong++;
2806 if (bits & 128) culong++;
2813 sv = NEWSV(35, len + 1);
2816 aptr = pat; /* borrow register */
2818 if (datumtype == 'b') {
2820 for (len = 0; len < aint; len++) {
2821 if (len & 7) /*SUPPRESS 595*/
2825 *pat++ = '0' + (bits & 1);
2830 for (len = 0; len < aint; len++) {
2835 *pat++ = '0' + ((bits & 128) != 0);
2839 pat = aptr; /* unborrow register */
2840 XPUSHs(sv_2mortal(sv));
2844 if (pat[-1] == '*' || len > (strend - s) * 2)
2845 len = (strend - s) * 2;
2846 sv = NEWSV(35, len + 1);
2849 aptr = pat; /* borrow register */
2851 if (datumtype == 'h') {
2853 for (len = 0; len < aint; len++) {
2858 *pat++ = hexdigit[bits & 15];
2863 for (len = 0; len < aint; len++) {
2868 *pat++ = hexdigit[(bits >> 4) & 15];
2872 pat = aptr; /* unborrow register */
2873 XPUSHs(sv_2mortal(sv));
2876 if (len > strend - s)
2881 if (aint >= 128) /* fake up signed chars */
2891 if (aint >= 128) /* fake up signed chars */
2894 sv_setiv(sv, (IV)aint);
2895 PUSHs(sv_2mortal(sv));
2900 if (len > strend - s)
2915 sv_setiv(sv, (IV)auint);
2916 PUSHs(sv_2mortal(sv));
2921 along = (strend - s) / SIZE16;
2938 sv_setiv(sv, (IV)ashort);
2939 PUSHs(sv_2mortal(sv));
2946 along = (strend - s) / SIZE16;
2951 COPY16(s, &aushort);
2954 if (datumtype == 'n')
2955 aushort = ntohs(aushort);
2958 if (datumtype == 'v')
2959 aushort = vtohs(aushort);
2968 COPY16(s, &aushort);
2972 if (datumtype == 'n')
2973 aushort = ntohs(aushort);
2976 if (datumtype == 'v')
2977 aushort = vtohs(aushort);
2979 sv_setiv(sv, (IV)aushort);
2980 PUSHs(sv_2mortal(sv));
2985 along = (strend - s) / sizeof(int);
2990 Copy(s, &aint, 1, int);
2993 cdouble += (double)aint;
3002 Copy(s, &aint, 1, int);
3005 sv_setiv(sv, (IV)aint);
3006 PUSHs(sv_2mortal(sv));
3011 along = (strend - s) / sizeof(unsigned int);
3016 Copy(s, &auint, 1, unsigned int);
3017 s += sizeof(unsigned int);
3019 cdouble += (double)auint;
3028 Copy(s, &auint, 1, unsigned int);
3029 s += sizeof(unsigned int);
3031 sv_setuv(sv, (UV)auint);
3032 PUSHs(sv_2mortal(sv));
3037 along = (strend - s) / SIZE32;
3045 cdouble += (double)along;
3057 sv_setiv(sv, (IV)along);
3058 PUSHs(sv_2mortal(sv));
3065 along = (strend - s) / SIZE32;
3073 if (datumtype == 'N')
3074 aulong = ntohl(aulong);
3077 if (datumtype == 'V')
3078 aulong = vtohl(aulong);
3081 cdouble += (double)aulong;
3093 if (datumtype == 'N')
3094 aulong = ntohl(aulong);
3097 if (datumtype == 'V')
3098 aulong = vtohl(aulong);
3101 sv_setuv(sv, (UV)aulong);
3102 PUSHs(sv_2mortal(sv));
3107 along = (strend - s) / sizeof(char*);
3113 if (sizeof(char*) > strend - s)
3116 Copy(s, &aptr, 1, char*);
3122 PUSHs(sv_2mortal(sv));
3132 while ((len > 0) && (s < strend)) {
3133 auv = (auv << 7) | (*s & 0x7f);
3134 if (!(*s++ & 0x80)) {
3138 PUSHs(sv_2mortal(sv));
3142 else if (++bytes >= sizeof(UV)) { /* promote to string */
3145 sv = newSVpvf("%.*Vu", (int)TYPE_DIGITS(UV), auv);
3146 while (s < strend) {
3147 sv = mul128(sv, *s & 0x7f);
3148 if (!(*s++ & 0x80)) {
3157 PUSHs(sv_2mortal(sv));
3162 if ((s >= strend) && bytes)
3163 croak("Unterminated compressed integer");
3168 if (sizeof(char*) > strend - s)
3171 Copy(s, &aptr, 1, char*);
3176 sv_setpvn(sv, aptr, len);
3177 PUSHs(sv_2mortal(sv));
3184 if (s + sizeof(Quad_t) > strend)
3187 Copy(s, &aquad, 1, Quad_t);
3188 s += sizeof(Quad_t);
3191 if (aquad >= IV_MIN && aquad <= IV_MAX)
3192 sv_setiv(sv, (IV)aquad);
3194 sv_setnv(sv, (double)aquad);
3195 PUSHs(sv_2mortal(sv));
3202 if (s + sizeof(unsigned Quad_t) > strend)
3205 Copy(s, &auquad, 1, unsigned Quad_t);
3206 s += sizeof(unsigned Quad_t);
3209 if (aquad <= UV_MAX)
3210 sv_setuv(sv, (UV)auquad);
3212 sv_setnv(sv, (double)auquad);
3213 PUSHs(sv_2mortal(sv));
3217 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3220 along = (strend - s) / sizeof(float);
3225 Copy(s, &afloat, 1, float);
3234 Copy(s, &afloat, 1, float);
3237 sv_setnv(sv, (double)afloat);
3238 PUSHs(sv_2mortal(sv));
3244 along = (strend - s) / sizeof(double);
3249 Copy(s, &adouble, 1, double);
3250 s += sizeof(double);
3258 Copy(s, &adouble, 1, double);
3259 s += sizeof(double);
3261 sv_setnv(sv, (double)adouble);
3262 PUSHs(sv_2mortal(sv));
3267 along = (strend - s) * 3 / 4;
3268 sv = NEWSV(42, along);
3271 while (s < strend && *s > ' ' && *s < 'a') {
3276 len = (*s++ - ' ') & 077;
3278 if (s < strend && *s >= ' ')
3279 a = (*s++ - ' ') & 077;
3282 if (s < strend && *s >= ' ')
3283 b = (*s++ - ' ') & 077;
3286 if (s < strend && *s >= ' ')
3287 c = (*s++ - ' ') & 077;
3290 if (s < strend && *s >= ' ')
3291 d = (*s++ - ' ') & 077;
3294 hunk[0] = a << 2 | b >> 4;
3295 hunk[1] = b << 4 | c >> 2;
3296 hunk[2] = c << 6 | d;
3297 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3302 else if (s[1] == '\n') /* possible checksum byte */
3305 XPUSHs(sv_2mortal(sv));
3310 if (strchr("fFdD", datumtype) ||
3311 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3315 while (checksum >= 16) {
3319 while (checksum >= 4) {
3325 along = (1 << checksum) - 1;
3326 while (cdouble < 0.0)
3328 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3329 sv_setnv(sv, cdouble);
3332 if (checksum < 32) {
3333 aulong = (1 << checksum) - 1;
3336 sv_setuv(sv, (UV)culong);
3338 XPUSHs(sv_2mortal(sv));
3342 if (sp == oldsp && gimme == G_SCALAR)
3348 doencodes(sv, s, len)
3356 sv_catpvn(sv, hunk, 1);
3359 hunk[0] = ' ' + (077 & (*s >> 2));
3360 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3361 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3362 hunk[3] = ' ' + (077 & (s[2] & 077));
3363 sv_catpvn(sv, hunk, 4);
3367 for (s = SvPVX(sv); *s; s++) {
3371 sv_catpvn(sv, "\n", 1);
3379 SV *result = newSVpv("", l);
3380 char *result_c = SvPV(result, na); /* convenience */
3381 char *out = result_c;
3391 SvREFCNT_dec(result);
3414 SvREFCNT_dec(result);
3420 SvCUR_set(result, out - result_c);
3426 SV *pnum; /* must be '\0' terminated */
3430 char *s = SvPV(pnum, len);
3439 i = m * 10 + (*t - '0');
3441 r = (i >> 7); /* r < 10 */
3448 SvCUR_set(pnum, (STRLEN) (t - s));
3455 dSP; dMARK; dORIGMARK; dTARGET;
3456 register SV *cat = TARG;
3459 register char *pat = SvPVx(*++MARK, fromlen);
3460 register char *patend = pat + fromlen;
3465 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3466 static char *space10 = " ";
3468 /* These must not be in registers: */
3477 unsigned Quad_t auquad;
3485 sv_setpvn(cat, "", 0);
3486 while (pat < patend) {
3487 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3488 datumtype = *pat++ & 0xFF;
3489 if (isSPACE(datumtype))
3492 len = strchr("@Xxu", datumtype) ? 0 : items;
3495 else if (isDIGIT(*pat)) {
3497 while (isDIGIT(*pat))
3498 len = (len * 10) + (*pat++ - '0');
3504 croak("Invalid type in pack: '%c'", (int)datumtype);
3506 DIE("%% may only be used in unpack");
3517 if (SvCUR(cat) < len)
3518 DIE("X outside of string");
3525 sv_catpvn(cat, null10, 10);
3528 sv_catpvn(cat, null10, len);
3533 aptr = SvPV(fromstr, fromlen);
3537 sv_catpvn(cat, aptr, len);
3539 sv_catpvn(cat, aptr, fromlen);
3541 if (datumtype == 'A') {
3543 sv_catpvn(cat, space10, 10);
3546 sv_catpvn(cat, space10, len);
3550 sv_catpvn(cat, null10, 10);
3553 sv_catpvn(cat, null10, len);
3560 char *savepat = pat;
3565 aptr = SvPV(fromstr, fromlen);
3570 SvCUR(cat) += (len+7)/8;
3571 SvGROW(cat, SvCUR(cat) + 1);
3572 aptr = SvPVX(cat) + aint;
3577 if (datumtype == 'B') {
3578 for (len = 0; len++ < aint;) {
3579 items |= *pat++ & 1;
3583 *aptr++ = items & 0xff;
3589 for (len = 0; len++ < aint;) {
3595 *aptr++ = items & 0xff;
3601 if (datumtype == 'B')
3602 items <<= 7 - (aint & 7);
3604 items >>= 7 - (aint & 7);
3605 *aptr++ = items & 0xff;
3607 pat = SvPVX(cat) + SvCUR(cat);
3618 char *savepat = pat;
3623 aptr = SvPV(fromstr, fromlen);
3628 SvCUR(cat) += (len+1)/2;
3629 SvGROW(cat, SvCUR(cat) + 1);
3630 aptr = SvPVX(cat) + aint;
3635 if (datumtype == 'H') {
3636 for (len = 0; len++ < aint;) {
3638 items |= ((*pat++ & 15) + 9) & 15;
3640 items |= *pat++ & 15;
3644 *aptr++ = items & 0xff;
3650 for (len = 0; len++ < aint;) {
3652 items |= (((*pat++ & 15) + 9) & 15) << 4;
3654 items |= (*pat++ & 15) << 4;
3658 *aptr++ = items & 0xff;
3664 *aptr++ = items & 0xff;
3665 pat = SvPVX(cat) + SvCUR(cat);
3677 aint = SvIV(fromstr);
3679 sv_catpvn(cat, &achar, sizeof(char));
3682 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3687 afloat = (float)SvNV(fromstr);
3688 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3695 adouble = (double)SvNV(fromstr);
3696 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3702 ashort = (I16)SvIV(fromstr);
3704 ashort = htons(ashort);
3706 CAT16(cat, &ashort);
3712 ashort = (I16)SvIV(fromstr);
3714 ashort = htovs(ashort);
3716 CAT16(cat, &ashort);
3723 ashort = (I16)SvIV(fromstr);
3724 CAT16(cat, &ashort);
3730 auint = SvUV(fromstr);
3731 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3737 adouble = floor(SvNV(fromstr));
3740 croak("Cannot compress negative numbers");
3746 #ifdef CXUX_BROKEN_CONSTANT_CONVERT
3747 adouble <= UV_MAX_cxux
3754 char buf[1 + sizeof(UV)];
3755 char *in = buf + sizeof(buf);
3756 UV auv = U_V(adouble);;
3759 *--in = (auv & 0x7f) | 0x80;
3762 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3763 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3765 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3766 char *from, *result, *in;
3771 /* Copy string and check for compliance */
3772 from = SvPV(fromstr, len);
3773 if ((norm = is_an_int(from, len)) == NULL)
3774 croak("can compress only unsigned integer");
3776 New('w', result, len, char);
3780 *--in = div128(norm, &done) | 0x80;
3781 result[len - 1] &= 0x7F; /* clear continue bit */
3782 sv_catpvn(cat, in, (result + len) - in);
3784 SvREFCNT_dec(norm); /* free norm */
3786 else if (SvNOKp(fromstr)) {
3787 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3788 char *in = buf + sizeof(buf);
3791 double next = floor(adouble / 128);
3792 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3793 if (--in < buf) /* this cannot happen ;-) */
3794 croak ("Cannot compress integer");
3796 } while (adouble > 0);
3797 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3798 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3801 croak("Cannot compress non integer");
3807 aint = SvIV(fromstr);
3808 sv_catpvn(cat, (char*)&aint, sizeof(int));
3814 aulong = SvUV(fromstr);
3816 aulong = htonl(aulong);
3818 CAT32(cat, &aulong);
3824 aulong = SvUV(fromstr);
3826 aulong = htovl(aulong);
3828 CAT32(cat, &aulong);
3834 aulong = SvUV(fromstr);
3835 CAT32(cat, &aulong);
3841 along = SvIV(fromstr);
3849 auquad = (unsigned Quad_t)SvIV(fromstr);
3850 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3856 aquad = (Quad_t)SvIV(fromstr);
3857 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3860 #endif /* HAS_QUAD */
3862 len = 1; /* assume SV is correct length */
3867 if (fromstr == &sv_undef)
3870 /* XXX better yet, could spirit away the string to
3871 * a safe spot and hang on to it until the result
3872 * of pack() (and all copies of the result) are
3875 if (dowarn && (SvTEMP(fromstr) || SvPADTMP(fromstr)))
3876 warn("Attempt to pack pointer to temporary value");
3877 if (SvPOK(fromstr) || SvNIOK(fromstr))
3878 aptr = SvPV(fromstr,na);
3880 aptr = SvPV_force(fromstr,na);
3882 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3887 aptr = SvPV(fromstr, fromlen);
3888 SvGROW(cat, fromlen * 4 / 3);
3893 while (fromlen > 0) {
3900 doencodes(cat, aptr, todo);
3918 register I32 limit = POPi; /* note, negative is forever */
3921 register char *s = SvPV(sv, len);
3922 char *strend = s + len;
3924 register REGEXP *rx;
3928 I32 maxiters = (strend - s) + 10;
3931 I32 origlimit = limit;
3934 AV *oldstack = curstack;
3935 I32 gimme = GIMME_V;
3936 I32 oldsave = savestack_ix;
3939 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3944 DIE("panic: do_split");
3945 rx = pm->op_pmregexp;
3947 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3948 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3950 if (pm->op_pmreplroot)
3951 ary = GvAVn((GV*)pm->op_pmreplroot);
3952 else if (gimme != G_ARRAY)
3956 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3960 for (i = AvFILL(ary); i >= 0; i--)
3961 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3965 /* temporarily switch stacks */
3966 SWITCHSTACK(curstack, ary);
3968 base = SP - stack_base;
3970 if (pm->op_pmflags & PMf_SKIPWHITE) {
3971 if (pm->op_pmflags & PMf_LOCALE) {
3972 while (isSPACE_LC(*s))
3980 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3982 multiline = pm->op_pmflags & PMf_MULTILINE;
3986 limit = maxiters + 2;
3987 if (pm->op_pmflags & PMf_WHITE) {
3990 while (m < strend &&
3991 !((pm->op_pmflags & PMf_LOCALE)
3992 ? isSPACE_LC(*m) : isSPACE(*m)))
3997 dstr = NEWSV(30, m-s);
3998 sv_setpvn(dstr, s, m-s);
4004 while (s < strend &&
4005 ((pm->op_pmflags & PMf_LOCALE)
4006 ? isSPACE_LC(*s) : isSPACE(*s)))
4010 else if (strEQ("^", rx->precomp)) {
4013 for (m = s; m < strend && *m != '\n'; m++) ;
4017 dstr = NEWSV(30, m-s);
4018 sv_setpvn(dstr, s, m-s);
4025 else if (pm->op_pmshort && !rx->nparens) {
4026 i = SvCUR(pm->op_pmshort);
4028 i = *SvPVX(pm->op_pmshort);
4031 for (m = s; m < strend && *m != i; m++) ;
4034 dstr = NEWSV(30, m-s);
4035 sv_setpvn(dstr, s, m-s);
4044 while (s < strend && --limit &&
4045 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
4049 dstr = NEWSV(31, m-s);
4050 sv_setpvn(dstr, s, m-s);
4059 maxiters += (strend - s) * rx->nparens;
4060 while (s < strend && --limit &&
4061 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
4063 TAINT_IF(rx->exec_tainted);
4065 && rx->subbase != orig) {
4070 strend = s + (strend - m);
4073 dstr = NEWSV(32, m-s);
4074 sv_setpvn(dstr, s, m-s);
4079 for (i = 1; i <= rx->nparens; i++) {
4083 dstr = NEWSV(33, m-s);
4084 sv_setpvn(dstr, s, m-s);
4087 dstr = NEWSV(33, 0);
4096 LEAVE_SCOPE(oldsave);
4097 iters = (SP - stack_base) - base;
4098 if (iters > maxiters)
4101 /* keep field after final delim? */
4102 if (s < strend || (iters && origlimit)) {
4103 dstr = NEWSV(34, strend-s);
4104 sv_setpvn(dstr, s, strend-s);
4110 else if (!origlimit) {
4111 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
4115 SWITCHSTACK(ary, oldstack);
4116 if (gimme == G_ARRAY) {
4118 Copy(AvARRAY(ary), SP + 1, iters, SV*);
4124 if (gimme == G_ARRAY)
4127 if (iters || !pm->op_pmreplroot) {