3 * Copyright (c) 1991-1994, Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "It's a big house this, and very peculiar. Always a bit more to discover,
12 * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise
19 * Types used in bitwise operations.
21 * Normally we'd just use IV and UV. However, some hardware and
22 * software combinations (e.g. Alpha and current OSF/1) don't have a
23 * floating-point type to use for NV that has adequate bits to fully
24 * hold an IV/UV. (In other words, sizeof(long) == sizeof(double).)
26 * It just so happens that "int" is the right size everywhere, at
32 static SV* refto _((SV* sv));
33 static void doencodes _((SV* sv, char* s, I32 len));
35 /* variations on pp_null */
40 if (GIMME != G_ARRAY) {
56 if (op->op_private & OPpLVAL_INTRO)
57 SAVECLEARSV(curpad[op->op_targ]);
59 if (op->op_flags & OPf_REF) {
63 if (GIMME == G_ARRAY) {
64 I32 maxarg = AvFILL((AV*)TARG) + 1;
66 Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*);
70 SV* sv = sv_newmortal();
71 I32 maxarg = AvFILL((AV*)TARG) + 1;
82 if (op->op_private & OPpLVAL_INTRO)
83 SAVECLEARSV(curpad[op->op_targ]);
84 if (op->op_flags & OPf_REF)
86 if (GIMME == G_ARRAY) { /* array wanted */
87 RETURNOP(do_kv(ARGS));
90 SV* sv = sv_newmortal();
91 if (HvFILL((HV*)TARG)) {
92 sprintf(buf, "%d/%d", HvFILL((HV*)TARG), HvMAX((HV*)TARG)+1);
104 DIE("NOT IMPL LINE %d",__LINE__);
116 if (SvTYPE(sv) == SVt_PVIO) {
117 GV *gv = (GV*) sv_newmortal();
118 gv_init(gv, 0, "", 0, 0);
119 GvIOp(gv) = (IO *)sv;
122 } else if (SvTYPE(sv) != SVt_PVGV)
123 DIE("Not a GLOB reference");
126 if (SvTYPE(sv) != SVt_PVGV) {
129 if (SvGMAGICAL(sv)) {
135 if (op->op_flags & OPf_REF ||
136 op->op_private & HINT_STRICT_REFS)
137 DIE(no_usym, "a symbol");
141 if (op->op_private & HINT_STRICT_REFS)
142 DIE(no_symref, sym, "a symbol");
143 sv = (SV*)gv_fetchpv(sym, TRUE, SVt_PVGV);
146 if (op->op_private & OPpLVAL_INTRO)
147 save_gp((GV*)sv, !(op->op_flags & OPf_SPECIAL));
159 switch (SvTYPE(sv)) {
163 DIE("Not a SCALAR reference");
170 if (SvTYPE(gv) != SVt_PVGV) {
171 if (SvGMAGICAL(sv)) {
177 if (op->op_flags & OPf_REF ||
178 op->op_private & HINT_STRICT_REFS)
179 DIE(no_usym, "a SCALAR");
183 if (op->op_private & HINT_STRICT_REFS)
184 DIE(no_symref, sym, "a SCALAR");
185 gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PV);
189 if (op->op_flags & OPf_MOD) {
190 if (op->op_private & OPpLVAL_INTRO)
191 sv = save_scalar((GV*)TOPs);
192 else if (op->op_private & OPpDEREF)
203 SV *sv = AvARYLEN(av);
205 AvARYLEN(av) = sv = NEWSV(0,0);
206 sv_upgrade(sv, SVt_IV);
207 sv_magic(sv, (SV*)av, '#', Nullch, 0);
215 dSP; dTARGET; dPOPss;
217 if (op->op_flags & OPf_MOD) {
218 if (SvTYPE(TARG) < SVt_PVLV) {
219 sv_upgrade(TARG, SVt_PVLV);
220 sv_magic(TARG, Nullsv, '.', Nullch, 0);
225 PUSHs(TARG); /* no SvSETMAGIC */
231 if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) {
232 mg = mg_find(sv, 'g');
233 if (mg && mg->mg_len >= 0) {
234 PUSHi(mg->mg_len + curcop->cop_arybase);
248 /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */
249 /* (But not in defined().) */
250 CV *cv = sv_2cv(TOPs, &stash, &gv, !(op->op_flags & OPf_SPECIAL));
253 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
270 cv = sv_2cv(TOPs, &stash, &gv, FALSE);
272 ret = sv_2mortal(newSVpv(SvPVX(cv), SvCUR(cv)));
280 CV* cv = (CV*)curpad[op->op_targ];
282 cv = (CV*)sv_2mortal((SV*)cv_clone(cv));
298 if (GIMME != G_ARRAY) {
302 EXTEND_MORTAL(SP - MARK);
304 *MARK = refto(*MARK);
314 if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') {
320 else if (SvPADTMP(sv))
324 (void)SvREFCNT_inc(sv);
327 sv_upgrade(rv, SVt_RV);
341 if (sv && SvGMAGICAL(sv))
344 if (!sv || !SvROK(sv))
348 pv = sv_reftype(sv,TRUE);
349 PUSHp(pv, strlen(pv));
359 stash = curcop->cop_stash;
361 stash = gv_stashsv(POPs, TRUE);
363 (void)sv_bless(TOPs, stash);
367 /* Pattern matching */
372 register unsigned char *s;
375 register I32 *sfirst;
380 s = (unsigned char*)(SvPV(sv, len));
382 if (sv == lastscream)
386 SvSCREAM_off(lastscream);
387 SvREFCNT_dec(lastscream);
389 lastscream = SvREFCNT_inc(sv);
395 if (pos > maxscream) {
397 maxscream = pos + 80;
398 New(301, screamfirst, 256, I32);
399 New(302, screamnext, maxscream, I32);
402 maxscream = pos + pos / 4;
403 Renew(screamnext, maxscream, I32);
407 sfirst = screamfirst;
410 if (!sfirst || !snext)
411 DIE("do_study: out of memory");
413 for (ch = 256; ch; --ch)
420 snext[pos] = sfirst[ch] - pos;
427 sv_magic(sv, Nullsv, 'g', Nullch, 0); /* piggyback on m//g magic */
430 XPUSHs(sv_2mortal(newSViv((I32)retval)));
439 if (op->op_flags & OPf_STACKED)
445 TARG = sv_newmortal();
446 PUSHi(do_trans(sv, op));
450 /* Lvalue operators. */
472 SETi(do_chomp(TOPs));
479 register I32 count = 0;
482 count += do_chomp(POPs);
493 if (!sv || !SvANY(sv))
495 switch (SvTYPE(sv)) {
497 if (AvMAX(sv) >= 0 || SvRMAGICAL(sv))
501 if (HvARRAY(sv) || SvRMAGICAL(sv))
505 if (CvROOT(sv) || CvXSUB(sv))
522 if (!op->op_private) {
531 if (SvTHINKFIRST(sv)) {
538 switch (SvTYPE(sv)) {
552 sv_setsv(sv, &sv_undef);
555 if (SvPOK(sv) && SvLEN(sv)) {
558 SvPV_set(sv, Nullch);
571 if (SvREADONLY(TOPs))
573 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
574 SvIVX(TOPs) != IV_MIN)
577 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
588 if (SvREADONLY(TOPs))
590 sv_setsv(TARG, TOPs);
591 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
592 SvIVX(TOPs) != IV_MAX)
595 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
611 sv_setsv(TARG, TOPs);
612 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) &&
613 SvIVX(TOPs) != IV_MIN)
616 SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK);
625 /* Ordinary operators. */
629 dSP; dATARGET; tryAMAGICbin(pow,opASSIGN);
632 SETn( pow( left, right) );
639 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
642 SETn( left * right );
649 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
654 DIE("Illegal division by zero");
656 /* insure that 20./5. == 4. */
659 if ((double)I_V(left) == left &&
660 (double)I_V(right) == right &&
661 (k = I_V(left)/I_V(right))*I_V(right) == I_V(left)) {
664 value = left / right;
668 value = left / right;
677 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
683 DIE("Illegal modulus zero");
685 if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs)) {
686 register IV left = SvIVX(TOPs);
688 SETu( (right - ((UV)(-left) - 1) % right) - 1 );
690 SETi( left % right );
693 register double left = TOPn;
695 SETu( (right - (U_V(-left) - 1) % right) - 1 );
697 SETu( U_V(left) % right );
705 dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN);
707 register I32 count = POPi;
708 if (GIMME == G_ARRAY && op->op_private & OPpREPEAT_DOLIST) {
710 I32 items = SP - MARK;
722 repeatcpy((char*)(MARK + items), (char*)MARK,
723 items * sizeof(SV*), count - 1);
729 else { /* Note: mark already snarfed by pp_list */
734 if (TARG == tmpstr && SvTHINKFIRST(tmpstr)) {
735 if (SvREADONLY(tmpstr) && curcop != &compiling)
736 DIE("Can't x= to readonly value");
740 SvSetSV(TARG, tmpstr);
741 SvPV_force(TARG, len);
746 SvGROW(TARG, (count * len) + 1);
747 repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1);
748 SvCUR(TARG) *= count;
752 (void)SvPOK_only(TARG);
761 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
764 SETn( left - right );
771 dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN);
774 if (op->op_private & HINT_INTEGER) {
788 dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN);
791 if (op->op_private & HINT_INTEGER) {
805 dSP; tryAMAGICbinSET(lt,0);
808 SETs((TOPn < value) ? &sv_yes : &sv_no);
815 dSP; tryAMAGICbinSET(gt,0);
818 SETs((TOPn > value) ? &sv_yes : &sv_no);
825 dSP; tryAMAGICbinSET(le,0);
828 SETs((TOPn <= value) ? &sv_yes : &sv_no);
835 dSP; tryAMAGICbinSET(ge,0);
838 SETs((TOPn >= value) ? &sv_yes : &sv_no);
845 dSP; tryAMAGICbinSET(ne,0);
848 SETs((TOPn != value) ? &sv_yes : &sv_no);
855 dSP; dTARGET; tryAMAGICbin(ncmp,0);
862 else if (left == right)
864 else if (left > right)
877 dSP; tryAMAGICbinSET(slt,0);
880 int cmp = ((op->op_private & OPpLOCALE)
881 ? sv_cmp_locale(left, right)
882 : sv_cmp(left, right));
883 SETs( cmp < 0 ? &sv_yes : &sv_no );
890 dSP; tryAMAGICbinSET(sgt,0);
893 int cmp = ((op->op_private & OPpLOCALE)
894 ? sv_cmp_locale(left, right)
895 : sv_cmp(left, right));
896 SETs( cmp > 0 ? &sv_yes : &sv_no );
903 dSP; tryAMAGICbinSET(sle,0);
906 int cmp = ((op->op_private & OPpLOCALE)
907 ? sv_cmp_locale(left, right)
908 : sv_cmp(left, right));
909 SETs( cmp <= 0 ? &sv_yes : &sv_no );
916 dSP; tryAMAGICbinSET(sge,0);
919 int cmp = ((op->op_private & OPpLOCALE)
920 ? sv_cmp_locale(left, right)
921 : sv_cmp(left, right));
922 SETs( cmp >= 0 ? &sv_yes : &sv_no );
929 dSP; tryAMAGICbinSET(seq,0);
932 SETs( sv_eq(left, right) ? &sv_yes : &sv_no );
939 dSP; tryAMAGICbinSET(sne,0);
942 SETs( !sv_eq(left, right) ? &sv_yes : &sv_no );
949 dSP; dTARGET; tryAMAGICbin(scmp,0);
952 int cmp = ((op->op_private & OPpLOCALE)
953 ? sv_cmp_locale(left, right)
954 : sv_cmp(left, right));
962 dSP; dATARGET; tryAMAGICbin(band,opASSIGN);
965 if (SvNIOKp(left) || SvNIOKp(right)) {
966 if (op->op_private & HINT_INTEGER) {
967 IBW value = SvIV(left) & SvIV(right);
971 UBW value = SvUV(left) & SvUV(right);
976 do_vop(op->op_type, TARG, left, right);
985 dSP; dATARGET; tryAMAGICbin(bxor,opASSIGN);
988 if (SvNIOKp(left) || SvNIOKp(right)) {
989 if (op->op_private & HINT_INTEGER) {
990 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) ^ SvIV(right);
994 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) ^ SvUV(right);
999 do_vop(op->op_type, TARG, left, right);
1008 dSP; dATARGET; tryAMAGICbin(bor,opASSIGN);
1011 if (SvNIOKp(left) || SvNIOKp(right)) {
1012 if (op->op_private & HINT_INTEGER) {
1013 IBW value = (USE_LEFT(left) ? SvIV(left) : 0) | SvIV(right);
1017 UBW value = (USE_LEFT(left) ? SvUV(left) : 0) | SvUV(right);
1022 do_vop(op->op_type, TARG, left, right);
1031 dSP; dTARGET; tryAMAGICun(neg);
1036 if (SvIOKp(sv) && !SvNOKp(sv) && !SvPOKp(sv) && SvIVX(sv) != IV_MIN)
1038 else if (SvNIOKp(sv))
1040 else if (SvPOKp(sv)) {
1042 char *s = SvPV(sv, len);
1043 if (isIDFIRST(*s)) {
1044 sv_setpvn(TARG, "-", 1);
1047 else if (*s == '+' || *s == '-') {
1049 *SvPV_force(TARG, len) = *s == '-' ? '+' : '-';
1052 sv_setnv(TARG, -SvNV(sv));
1064 dSP; tryAMAGICunSET(not);
1065 #endif /* OVERLOAD */
1066 *stack_sp = SvTRUE(*stack_sp) ? &sv_no : &sv_yes;
1072 dSP; dTARGET; tryAMAGICun(compl);
1076 if (op->op_private & HINT_INTEGER) {
1077 IBW value = ~SvIV(sv);
1081 UBW value = ~SvUV(sv);
1086 register char *tmps;
1087 register long *tmpl;
1092 tmps = SvPV_force(TARG, len);
1095 for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++)
1098 for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++)
1102 for ( ; anum > 0; anum--, tmps++)
1111 /* integer versions of some of the above */
1115 dSP; dATARGET; tryAMAGICbin(mult,opASSIGN);
1118 SETi( left * right );
1125 dSP; dATARGET; tryAMAGICbin(div,opASSIGN);
1129 DIE("Illegal division by zero");
1130 value = POPi / value;
1138 dSP; dATARGET; tryAMAGICbin(mod,opASSIGN);
1141 SETi( left % right );
1148 dSP; dATARGET; tryAMAGICbin(add,opASSIGN);
1151 SETi( left + right );
1158 dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN);
1161 SETi( left - right );
1168 dSP; tryAMAGICbinSET(lt,0);
1171 SETs((left < right) ? &sv_yes : &sv_no);
1178 dSP; tryAMAGICbinSET(gt,0);
1181 SETs((left > right) ? &sv_yes : &sv_no);
1188 dSP; tryAMAGICbinSET(le,0);
1191 SETs((left <= right) ? &sv_yes : &sv_no);
1198 dSP; tryAMAGICbinSET(ge,0);
1201 SETs((left >= right) ? &sv_yes : &sv_no);
1208 dSP; tryAMAGICbinSET(eq,0);
1211 SETs((left == right) ? &sv_yes : &sv_no);
1218 dSP; tryAMAGICbinSET(ne,0);
1221 SETs((left != right) ? &sv_yes : &sv_no);
1228 dSP; dTARGET; tryAMAGICbin(ncmp,0);
1235 else if (left < right)
1246 dSP; dTARGET; tryAMAGICun(neg);
1251 /* High falutin' math. */
1255 dSP; dTARGET; tryAMAGICbin(atan2,0);
1258 SETn(atan2(left, right));
1265 dSP; dTARGET; tryAMAGICun(sin);
1277 dSP; dTARGET; tryAMAGICun(cos);
1298 value = rand() * value / 2147483648.0;
1301 value = rand() * value / 65536.0;
1304 value = rand() * value / 32768.0;
1306 value = rand() * value / (double)(((unsigned long)1) << RANDBITS);
1321 # include <starlet.h>
1322 unsigned int when[2];
1323 _ckvmssts(sys$gettim(when));
1324 anum = when[0] ^ when[1];
1326 # ifdef HAS_GETTIMEOFDAY
1327 struct timeval when;
1328 gettimeofday(&when,(struct timezone *) 0);
1329 anum = when.tv_sec ^ when.tv_usec;
1336 #if !defined(PLAN9) /* XXX Plan9 assembler chokes on this; fix coming soon */
1337 /* 17-Jul-1996 bailey@genetics.upenn.edu */
1338 /* What is a good hashing algorithm here? */
1339 anum ^= ( ( 269 * (U32)getpid())
1340 ^ (26107 * (U32)&when)
1341 ^ (73819 * (U32)stack_sp));
1353 dSP; dTARGET; tryAMAGICun(exp);
1365 dSP; dTARGET; tryAMAGICun(log);
1370 SET_NUMERIC_STANDARD();
1371 DIE("Can't take log of %g", value);
1381 dSP; dTARGET; tryAMAGICun(sqrt);
1386 SET_NUMERIC_STANDARD();
1387 DIE("Can't take sqrt of %g", value);
1389 value = sqrt(value);
1399 double value = TOPn;
1402 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs)) {
1408 (void)modf(value, &value);
1410 (void)modf(-value, &value);
1425 dSP; dTARGET; tryAMAGICun(abs);
1427 double value = TOPn;
1430 if (SvIOKp(TOPs) && !SvNOKp(TOPs) && !SvPOKp(TOPs) &&
1431 (iv = SvIVX(TOPs)) != IV_MIN) {
1452 XPUSHu(scan_hex(tmps, 99, &argtype));
1464 while (*tmps && isSPACE(*tmps))
1469 value = scan_hex(++tmps, 99, &argtype);
1471 value = scan_oct(tmps, 99, &argtype);
1481 SETi( sv_len(TOPs) );
1493 I32 lvalue = op->op_flags & OPf_MOD;
1495 I32 arybase = curcop->cop_arybase;
1499 pos = POPi - arybase;
1501 tmps = SvPV(sv, curlen);
1503 pos += curlen + arybase;
1504 if (pos < 0 || pos > curlen) {
1505 if (dowarn || lvalue)
1506 warn("substr outside of string");
1513 len += curlen - pos;
1518 rem = curlen - pos; /* rem=how many bytes left*/
1521 sv_setpvn(TARG, tmps, rem);
1522 if (lvalue) { /* it's an lvalue! */
1523 if (!SvGMAGICAL(sv)) {
1527 warn("Attempt to use reference as lvalue in substr");
1529 if (SvOK(sv)) /* is it defined ? */
1530 (void)SvPOK_only(sv);
1532 sv_setpvn(sv,"",0); /* avoid lexical reincarnation */
1535 if (SvTYPE(TARG) < SVt_PVLV) {
1536 sv_upgrade(TARG, SVt_PVLV);
1537 sv_magic(TARG, Nullsv, 'x', Nullch, 0);
1542 LvTARGOFF(TARG) = pos;
1543 LvTARGLEN(TARG) = rem;
1546 PUSHs(TARG); /* avoid SvSETMAGIC here */
1553 register I32 size = POPi;
1554 register I32 offset = POPi;
1555 register SV *src = POPs;
1556 I32 lvalue = op->op_flags & OPf_MOD;
1558 unsigned char *s = (unsigned char*)SvPV(src, srclen);
1559 unsigned long retnum;
1562 offset *= size; /* turn into bit offset */
1563 len = (offset + size + 7) / 8;
1564 if (offset < 0 || size < 1)
1567 if (lvalue) { /* it's an lvalue! */
1568 if (SvTYPE(TARG) < SVt_PVLV) {
1569 sv_upgrade(TARG, SVt_PVLV);
1570 sv_magic(TARG, Nullsv, 'v', Nullch, 0);
1575 LvTARGOFF(TARG) = offset;
1576 LvTARGLEN(TARG) = size;
1584 if (offset >= srclen)
1587 retnum = (unsigned long) s[offset] << 8;
1589 else if (size == 32) {
1590 if (offset >= srclen)
1592 else if (offset + 1 >= srclen)
1593 retnum = (unsigned long) s[offset] << 24;
1594 else if (offset + 2 >= srclen)
1595 retnum = ((unsigned long) s[offset] << 24) +
1596 ((unsigned long) s[offset + 1] << 16);
1598 retnum = ((unsigned long) s[offset] << 24) +
1599 ((unsigned long) s[offset + 1] << 16) +
1600 (s[offset + 2] << 8);
1605 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
1610 else if (size == 16)
1611 retnum = ((unsigned long) s[offset] << 8) + s[offset+1];
1612 else if (size == 32)
1613 retnum = ((unsigned long) s[offset] << 24) +
1614 ((unsigned long) s[offset + 1] << 16) +
1615 (s[offset + 2] << 8) + s[offset+3];
1619 sv_setiv(TARG, (I32)retnum);
1634 I32 arybase = curcop->cop_arybase;
1639 offset = POPi - arybase;
1642 tmps = SvPV(big, biglen);
1645 else if (offset > biglen)
1647 if (!(tmps2 = fbm_instr((unsigned char*)tmps + offset,
1648 (unsigned char*)tmps + biglen, little)))
1649 retval = -1 + arybase;
1651 retval = tmps2 - tmps + arybase;
1668 I32 arybase = curcop->cop_arybase;
1674 tmps2 = SvPV(little, llen);
1675 tmps = SvPV(big, blen);
1679 offset = SvIV(offstr) - arybase + llen;
1682 else if (offset > blen)
1684 if (!(tmps2 = rninstr(tmps, tmps + offset,
1685 tmps2, tmps2 + llen)))
1686 retval = -1 + arybase;
1688 retval = tmps2 - tmps + arybase;
1695 dSP; dMARK; dORIGMARK; dTARGET;
1696 #ifdef USE_LOCALE_NUMERIC
1697 if (op->op_private & OPpLOCALE)
1698 SET_NUMERIC_LOCAL();
1700 SET_NUMERIC_STANDARD();
1702 do_sprintf(TARG, SP-MARK, MARK+1);
1703 TAINT_IF(SvTAINTED(TARG));
1717 value = (I32) (*tmps & 255);
1722 value = (I32) (anum & 255);
1733 (void)SvUPGRADE(TARG,SVt_PV);
1739 (void)SvPOK_only(TARG);
1746 dSP; dTARGET; dPOPTOPssrl;
1748 char *tmps = SvPV(left, na);
1750 sv_setpv(TARG, fcrypt(tmps, SvPV(right, na)));
1752 sv_setpv(TARG, crypt(tmps, SvPV(right, na)));
1756 "The crypt() function is unimplemented due to excessive paranoia.");
1768 if (!SvPADTMP(sv)) {
1774 s = SvPV_force(sv, na);
1776 if (op->op_private & OPpLOCALE) {
1779 *s = toUPPER_LC(*s);
1794 if (!SvPADTMP(sv)) {
1800 s = SvPV_force(sv, na);
1802 if (op->op_private & OPpLOCALE) {
1805 *s = toLOWER_LC(*s);
1822 if (!SvPADTMP(sv)) {
1829 s = SvPV_force(sv, len);
1831 register char *send = s + len;
1833 if (op->op_private & OPpLOCALE) {
1836 for (; s < send; s++)
1837 *s = toUPPER_LC(*s);
1840 for (; s < send; s++)
1854 if (!SvPADTMP(sv)) {
1861 s = SvPV_force(sv, len);
1863 register char *send = s + len;
1865 if (op->op_private & OPpLOCALE) {
1868 for (; s < send; s++)
1869 *s = toLOWER_LC(*s);
1872 for (; s < send; s++)
1884 register char *s = SvPV(sv,len);
1888 (void)SvUPGRADE(TARG, SVt_PV);
1889 SvGROW(TARG, (len * 2) + 1);
1897 SvCUR_set(TARG, d - SvPVX(TARG));
1898 (void)SvPOK_only(TARG);
1901 sv_setpvn(TARG, s, len);
1910 dSP; dMARK; dORIGMARK;
1912 register AV* av = (AV*)POPs;
1913 register I32 lval = op->op_flags & OPf_MOD;
1914 I32 arybase = curcop->cop_arybase;
1917 if (SvTYPE(av) == SVt_PVAV) {
1918 if (lval && op->op_private & OPpLVAL_INTRO) {
1920 for (svp = mark + 1; svp <= sp; svp++) {
1925 if (max > AvMAX(av))
1928 while (++MARK <= SP) {
1929 elem = SvIVx(*MARK);
1933 svp = av_fetch(av, elem, lval);
1935 if (!svp || *svp == &sv_undef)
1936 DIE(no_aelem, elem);
1937 if (op->op_private & OPpLVAL_INTRO)
1940 *MARK = svp ? *svp : &sv_undef;
1943 if (GIMME != G_ARRAY) {
1951 /* Associative arrays. */
1956 HV *hash = (HV*)POPs;
1960 entry = hv_iternext(hash); /* might clobber stack_sp */
1965 PUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1966 if (GIMME == G_ARRAY) {
1968 sv_setsv(TARG, hv_iterval(hash, entry)); /* might clobber stack_sp */
1973 else if (GIMME == G_SCALAR)
1995 if (op->op_private & OPpSLICE) {
1998 if (SvTYPE(hv) != SVt_PVHV)
1999 DIE("Not a HASH reference");
2000 while (++MARK <= SP) {
2001 sv = hv_delete_ent(hv, *MARK,
2002 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2003 *MARK = sv ? sv : &sv_undef;
2005 if (GIMME != G_ARRAY) {
2014 if (SvTYPE(hv) != SVt_PVHV)
2015 DIE("Not a HASH reference");
2016 sv = hv_delete_ent(hv, keysv,
2017 (op->op_private & OPpLEAVE_VOID ? G_DISCARD : 0), 0);
2031 if (SvTYPE(hv) != SVt_PVHV) {
2032 DIE("Not a HASH reference");
2034 if (hv_exists_ent(hv, tmpsv, 0))
2041 dSP; dMARK; dORIGMARK;
2043 register HV *hv = (HV*)POPs;
2044 register I32 lval = op->op_flags & OPf_MOD;
2046 if (SvTYPE(hv) == SVt_PVHV) {
2047 while (++MARK <= SP) {
2050 he = hv_fetch_ent(hv, keysv, lval, 0);
2052 if (!he || HeVAL(he) == &sv_undef)
2053 DIE(no_helem, SvPV(keysv, na));
2054 if (op->op_private & OPpLVAL_INTRO)
2055 save_svref(&HeVAL(he));
2057 *MARK = he ? HeVAL(he) : &sv_undef;
2060 if (GIMME != G_ARRAY) {
2068 /* List operators. */
2073 if (GIMME != G_ARRAY) {
2075 *MARK = *SP; /* unwanted list, return last item */
2086 SV **lastrelem = stack_sp;
2087 SV **lastlelem = stack_base + POPMARK;
2088 SV **firstlelem = stack_base + POPMARK + 1;
2089 register SV **firstrelem = lastlelem + 1;
2090 I32 arybase = curcop->cop_arybase;
2091 I32 lval = op->op_flags & OPf_MOD;
2092 I32 is_something_there = lval;
2094 register I32 max = lastrelem - lastlelem;
2095 register SV **lelem;
2098 if (GIMME != G_ARRAY) {
2099 ix = SvIVx(*lastlelem);
2104 if (ix < 0 || ix >= max)
2105 *firstlelem = &sv_undef;
2107 *firstlelem = firstrelem[ix];
2113 SP = firstlelem - 1;
2117 for (lelem = firstlelem; lelem <= lastlelem; lelem++) {
2123 else if (!(*lelem = firstrelem[ix]))
2128 if (ix >= max || !(*lelem = firstrelem[ix]))
2131 if (!is_something_there && (SvOKp(*lelem) || SvGMAGICAL(*lelem)))
2132 is_something_there = TRUE;
2134 if (is_something_there)
2137 SP = firstlelem - 1;
2143 dSP; dMARK; dORIGMARK;
2144 I32 items = SP - MARK;
2145 SV *av = sv_2mortal((SV*)av_make(items, MARK+1));
2146 SP = ORIGMARK; /* av_make() might realloc stack_sp */
2153 dSP; dMARK; dORIGMARK;
2154 HV* hv = (HV*)sv_2mortal((SV*)newHV());
2158 SV *val = NEWSV(46, 0);
2160 sv_setsv(val, *++MARK);
2162 warn("Odd number of elements in hash list");
2163 (void)hv_store_ent(hv,key,val,0);
2172 dSP; dMARK; dORIGMARK;
2173 register AV *ary = (AV*)*++MARK;
2177 register I32 offset;
2178 register I32 length;
2187 offset = SvIVx(*MARK);
2189 offset += AvFILL(ary) + 1;
2191 offset -= curcop->cop_arybase;
2193 length = SvIVx(*MARK++);
2198 length = AvMAX(ary) + 1; /* close enough to infinity */
2202 length = AvMAX(ary) + 1;
2210 if (offset > AvFILL(ary) + 1)
2211 offset = AvFILL(ary) + 1;
2212 after = AvFILL(ary) + 1 - (offset + length);
2213 if (after < 0) { /* not that much array */
2214 length += after; /* offset+length now in array */
2220 /* At this point, MARK .. SP-1 is our new LIST */
2223 diff = newlen - length;
2225 if (diff < 0) { /* shrinking the area */
2227 New(451, tmparyval, newlen, SV*); /* so remember insertion */
2228 Copy(MARK, tmparyval, newlen, SV*);
2231 MARK = ORIGMARK + 1;
2232 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2233 MEXTEND(MARK, length);
2234 Copy(AvARRAY(ary)+offset, MARK, length, SV*);
2236 EXTEND_MORTAL(length);
2237 for (i = length, dst = MARK; i; i--) {
2238 if (!SvIMMORTAL(*dst))
2239 sv_2mortal(*dst); /* free them eventualy */
2246 *MARK = AvARRAY(ary)[offset+length-1];
2248 if (!SvIMMORTAL(*MARK))
2250 for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--)
2251 SvREFCNT_dec(*dst++); /* free them now */
2254 AvFILL(ary) += diff;
2256 /* pull up or down? */
2258 if (offset < after) { /* easier to pull up */
2259 if (offset) { /* esp. if nothing to pull */
2260 src = &AvARRAY(ary)[offset-1];
2261 dst = src - diff; /* diff is negative */
2262 for (i = offset; i > 0; i--) /* can't trust Copy */
2266 SvPVX(ary) = (char*)(AvARRAY(ary) - diff); /* diff is negative */
2270 if (after) { /* anything to pull down? */
2271 src = AvARRAY(ary) + offset + length;
2272 dst = src + diff; /* diff is negative */
2273 Move(src, dst, after, SV*);
2275 dst = &AvARRAY(ary)[AvFILL(ary)+1];
2276 /* avoid later double free */
2280 dst[--i] = &sv_undef;
2283 for (src = tmparyval, dst = AvARRAY(ary) + offset;
2285 *dst = NEWSV(46, 0);
2286 sv_setsv(*dst++, *src++);
2288 Safefree(tmparyval);
2291 else { /* no, expanding (or same) */
2293 New(452, tmparyval, length, SV*); /* so remember deletion */
2294 Copy(AvARRAY(ary)+offset, tmparyval, length, SV*);
2297 if (diff > 0) { /* expanding */
2299 /* push up or down? */
2301 if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) {
2305 Move(src, dst, offset, SV*);
2307 SvPVX(ary) = (char*)(AvARRAY(ary) - diff);/* diff is positive */
2309 AvFILL(ary) += diff;
2312 if (AvFILL(ary) + diff >= AvMAX(ary)) /* oh, well */
2313 av_extend(ary, AvFILL(ary) + diff);
2314 AvFILL(ary) += diff;
2317 dst = AvARRAY(ary) + AvFILL(ary);
2319 for (i = after; i; i--) {
2326 for (src = MARK, dst = AvARRAY(ary) + offset; newlen; newlen--) {
2327 *dst = NEWSV(46, 0);
2328 sv_setsv(*dst++, *src++);
2330 MARK = ORIGMARK + 1;
2331 if (GIMME == G_ARRAY) { /* copy return vals to stack */
2333 Copy(tmparyval, MARK, length, SV*);
2335 EXTEND_MORTAL(length);
2336 for (i = length, dst = MARK; i; i--) {
2337 if (!SvIMMORTAL(*dst))
2338 sv_2mortal(*dst); /* free them eventualy */
2342 Safefree(tmparyval);
2346 else if (length--) {
2347 *MARK = tmparyval[length];
2349 if (!SvIMMORTAL(*MARK))
2351 while (length-- > 0)
2352 SvREFCNT_dec(tmparyval[length]);
2354 Safefree(tmparyval);
2365 dSP; dMARK; dORIGMARK; dTARGET;
2366 register AV *ary = (AV*)*++MARK;
2367 register SV *sv = &sv_undef;
2369 for (++MARK; MARK <= SP; MARK++) {
2372 sv_setsv(sv, *MARK);
2376 PUSHi( AvFILL(ary) + 1 );
2384 SV *sv = av_pop(av);
2385 if (!SvIMMORTAL(sv) && AvREAL(av))
2386 (void)sv_2mortal(sv);
2395 SV *sv = av_shift(av);
2399 if (!SvIMMORTAL(sv) && AvREAL(av))
2400 (void)sv_2mortal(sv);
2407 dSP; dMARK; dORIGMARK; dTARGET;
2408 register AV *ary = (AV*)*++MARK;
2412 av_unshift(ary, SP - MARK);
2415 sv_setsv(sv, *++MARK);
2416 (void)av_store(ary, i++, sv);
2420 PUSHi( AvFILL(ary) + 1 );
2430 if (GIMME == G_ARRAY) {
2441 register char *down;
2447 do_join(TARG, &sv_no, MARK, SP);
2449 sv_setsv(TARG, *SP);
2450 up = SvPV_force(TARG, len);
2452 down = SvPVX(TARG) + len - 1;
2458 (void)SvPOK_only(TARG);
2472 char *s = SvPV(sv, len);
2476 if (!strnEQ(s, "0000", 4)) { /* need to grow sv */
2477 SV *new = newSVpv("0000000000", 10);
2480 SvREFCNT_dec(sv); /* free old sv */
2485 while (!*t) /* trailing '\0'? */
2488 i = ((*t - '0') << 7) + m;
2489 *(t--) = '0' + (i % 10);
2495 /* Explosives and implosives. */
2505 register char *pat = SvPV(left, llen);
2506 register char *s = SvPV(right, rlen);
2507 char *strend = s + rlen;
2509 register char *patend = pat + llen;
2514 /* These must not be in registers: */
2525 unsigned Quad_t auquad;
2531 register U32 culong;
2533 static char* bitcount = 0;
2535 if (GIMME != G_ARRAY) { /* arrange to do first one only */
2537 for (patend = pat; !isALPHA(*patend) || *patend == 'x'; patend++) ;
2538 if (strchr("aAbBhHP", *patend) || *pat == '%') {
2540 while (isDIGIT(*patend) || *patend == '*')
2546 while (pat < patend) {
2551 else if (*pat == '*') {
2552 len = strend - strbeg; /* long enough */
2555 else if (isDIGIT(*pat)) {
2557 while (isDIGIT(*pat))
2558 len = (len * 10) + (*pat++ - '0');
2561 len = (datumtype != '@');
2566 if (len == 1 && pat[-1] != '1')
2575 if (len > strend - strbeg)
2576 DIE("@ outside of string");
2580 if (len > s - strbeg)
2581 DIE("X outside of string");
2585 if (len > strend - s)
2586 DIE("x outside of string");
2591 if (len > strend - s)
2594 goto uchar_checksum;
2595 sv = NEWSV(35, len);
2596 sv_setpvn(sv, s, len);
2598 if (datumtype == 'A') {
2599 aptr = s; /* borrow register */
2600 s = SvPVX(sv) + len - 1;
2601 while (s >= SvPVX(sv) && (!*s || isSPACE(*s)))
2604 SvCUR_set(sv, s - SvPVX(sv));
2605 s = aptr; /* unborrow register */
2607 XPUSHs(sv_2mortal(sv));
2611 if (pat[-1] == '*' || len > (strend - s) * 8)
2612 len = (strend - s) * 8;
2615 Newz(601, bitcount, 256, char);
2616 for (bits = 1; bits < 256; bits++) {
2617 if (bits & 1) bitcount[bits]++;
2618 if (bits & 2) bitcount[bits]++;
2619 if (bits & 4) bitcount[bits]++;
2620 if (bits & 8) bitcount[bits]++;
2621 if (bits & 16) bitcount[bits]++;
2622 if (bits & 32) bitcount[bits]++;
2623 if (bits & 64) bitcount[bits]++;
2624 if (bits & 128) bitcount[bits]++;
2628 culong += bitcount[*(unsigned char*)s++];
2633 if (datumtype == 'b') {
2635 if (bits & 1) culong++;
2641 if (bits & 128) culong++;
2648 sv = NEWSV(35, len + 1);
2651 aptr = pat; /* borrow register */
2653 if (datumtype == 'b') {
2655 for (len = 0; len < aint; len++) {
2656 if (len & 7) /*SUPPRESS 595*/
2660 *pat++ = '0' + (bits & 1);
2665 for (len = 0; len < aint; len++) {
2670 *pat++ = '0' + ((bits & 128) != 0);
2674 pat = aptr; /* unborrow register */
2675 XPUSHs(sv_2mortal(sv));
2679 if (pat[-1] == '*' || len > (strend - s) * 2)
2680 len = (strend - s) * 2;
2681 sv = NEWSV(35, len + 1);
2684 aptr = pat; /* borrow register */
2686 if (datumtype == 'h') {
2688 for (len = 0; len < aint; len++) {
2693 *pat++ = hexdigit[bits & 15];
2698 for (len = 0; len < aint; len++) {
2703 *pat++ = hexdigit[(bits >> 4) & 15];
2707 pat = aptr; /* unborrow register */
2708 XPUSHs(sv_2mortal(sv));
2711 if (len > strend - s)
2716 if (aint >= 128) /* fake up signed chars */
2726 if (aint >= 128) /* fake up signed chars */
2729 sv_setiv(sv, (I32)aint);
2730 PUSHs(sv_2mortal(sv));
2735 if (len > strend - s)
2750 sv_setiv(sv, (I32)auint);
2751 PUSHs(sv_2mortal(sv));
2756 along = (strend - s) / sizeof(I16);
2761 Copy(s, &ashort, 1, I16);
2770 Copy(s, &ashort, 1, I16);
2773 sv_setiv(sv, (I32)ashort);
2774 PUSHs(sv_2mortal(sv));
2781 along = (strend - s) / sizeof(U16);
2786 Copy(s, &aushort, 1, U16);
2789 if (datumtype == 'n')
2790 aushort = ntohs(aushort);
2793 if (datumtype == 'v')
2794 aushort = vtohs(aushort);
2803 Copy(s, &aushort, 1, U16);
2807 if (datumtype == 'n')
2808 aushort = ntohs(aushort);
2811 if (datumtype == 'v')
2812 aushort = vtohs(aushort);
2814 sv_setiv(sv, (I32)aushort);
2815 PUSHs(sv_2mortal(sv));
2820 along = (strend - s) / sizeof(int);
2825 Copy(s, &aint, 1, int);
2828 cdouble += (double)aint;
2837 Copy(s, &aint, 1, int);
2840 sv_setiv(sv, (I32)aint);
2841 PUSHs(sv_2mortal(sv));
2846 along = (strend - s) / sizeof(unsigned int);
2851 Copy(s, &auint, 1, unsigned int);
2852 s += sizeof(unsigned int);
2854 cdouble += (double)auint;
2863 Copy(s, &auint, 1, unsigned int);
2864 s += sizeof(unsigned int);
2866 if (auint <= I32_MAX)
2867 sv_setiv(sv, (I32)auint);
2869 sv_setnv(sv, (double)auint);
2870 PUSHs(sv_2mortal(sv));
2875 along = (strend - s) / sizeof(I32);
2880 Copy(s, &along, 1, I32);
2883 cdouble += (double)along;
2892 Copy(s, &along, 1, I32);
2895 sv_setiv(sv, (I32)along);
2896 PUSHs(sv_2mortal(sv));
2903 along = (strend - s) / sizeof(U32);
2908 Copy(s, &aulong, 1, U32);
2911 if (datumtype == 'N')
2912 aulong = ntohl(aulong);
2915 if (datumtype == 'V')
2916 aulong = vtohl(aulong);
2919 cdouble += (double)aulong;
2928 Copy(s, &aulong, 1, U32);
2932 if (datumtype == 'N')
2933 aulong = ntohl(aulong);
2936 if (datumtype == 'V')
2937 aulong = vtohl(aulong);
2939 sv_setnv(sv, (double)aulong);
2940 PUSHs(sv_2mortal(sv));
2945 along = (strend - s) / sizeof(char*);
2951 if (sizeof(char*) > strend - s)
2954 Copy(s, &aptr, 1, char*);
2960 PUSHs(sv_2mortal(sv));
2970 while ((len > 0) && (s < strend)) {
2971 auv = (auv << 7) | (*s & 0x7f);
2972 if (!(*s++ & 0x80)) {
2976 PUSHs(sv_2mortal(sv));
2980 else if (++bytes >= sizeof(UV)) { /* promote to string */
2981 char decn[sizeof(UV) * 3 + 1];
2984 (void) sprintf(decn, "%0*ld", sizeof(decn) - 1, auv);
2985 sv = newSVpv(decn, 0);
2986 while (s < strend) {
2987 sv = mul128(sv, *s & 0x7f);
2988 if (!(*s++ & 0x80)) {
2997 PUSHs(sv_2mortal(sv));
3002 if ((s >= strend) && bytes)
3003 croak("Unterminated compressed integer");
3008 if (sizeof(char*) > strend - s)
3011 Copy(s, &aptr, 1, char*);
3016 sv_setpvn(sv, aptr, len);
3017 PUSHs(sv_2mortal(sv));
3024 if (s + sizeof(Quad_t) > strend)
3027 Copy(s, &aquad, 1, Quad_t);
3028 s += sizeof(Quad_t);
3031 sv_setiv(sv, (IV)aquad);
3032 PUSHs(sv_2mortal(sv));
3039 if (s + sizeof(unsigned Quad_t) > strend)
3042 Copy(s, &auquad, 1, unsigned Quad_t);
3043 s += sizeof(unsigned Quad_t);
3046 sv_setiv(sv, (IV)auquad);
3047 PUSHs(sv_2mortal(sv));
3051 /* float and double added gnb@melba.bby.oz.au 22/11/89 */
3054 along = (strend - s) / sizeof(float);
3059 Copy(s, &afloat, 1, float);
3068 Copy(s, &afloat, 1, float);
3071 sv_setnv(sv, (double)afloat);
3072 PUSHs(sv_2mortal(sv));
3078 along = (strend - s) / sizeof(double);
3083 Copy(s, &adouble, 1, double);
3084 s += sizeof(double);
3092 Copy(s, &adouble, 1, double);
3093 s += sizeof(double);
3095 sv_setnv(sv, (double)adouble);
3096 PUSHs(sv_2mortal(sv));
3101 along = (strend - s) * 3 / 4;
3102 sv = NEWSV(42, along);
3105 while (s < strend && *s > ' ' && *s < 'a') {
3110 len = (*s++ - ' ') & 077;
3112 if (s < strend && *s >= ' ')
3113 a = (*s++ - ' ') & 077;
3116 if (s < strend && *s >= ' ')
3117 b = (*s++ - ' ') & 077;
3120 if (s < strend && *s >= ' ')
3121 c = (*s++ - ' ') & 077;
3124 if (s < strend && *s >= ' ')
3125 d = (*s++ - ' ') & 077;
3128 hunk[0] = a << 2 | b >> 4;
3129 hunk[1] = b << 4 | c >> 2;
3130 hunk[2] = c << 6 | d;
3131 sv_catpvn(sv, hunk, len > 3 ? 3 : len);
3136 else if (s[1] == '\n') /* possible checksum byte */
3139 XPUSHs(sv_2mortal(sv));
3144 if (strchr("fFdD", datumtype) ||
3145 (checksum > 32 && strchr("iIlLN", datumtype)) ) {
3149 while (checksum >= 16) {
3153 while (checksum >= 4) {
3159 along = (1 << checksum) - 1;
3160 while (cdouble < 0.0)
3162 cdouble = modf(cdouble / adouble, &trouble) * adouble;
3163 sv_setnv(sv, cdouble);
3166 if (checksum < 32) {
3167 along = (1 << checksum) - 1;
3168 culong &= (U32)along;
3170 sv_setnv(sv, (double)culong);
3172 XPUSHs(sv_2mortal(sv));
3176 if (sp == oldsp && GIMME != G_ARRAY)
3182 doencodes(sv, s, len)
3190 sv_catpvn(sv, hunk, 1);
3193 hunk[0] = ' ' + (077 & (*s >> 2));
3194 hunk[1] = ' ' + (077 & ((*s << 4) & 060 | (s[1] >> 4) & 017));
3195 hunk[2] = ' ' + (077 & ((s[1] << 2) & 074 | (s[2] >> 6) & 03));
3196 hunk[3] = ' ' + (077 & (s[2] & 077));
3197 sv_catpvn(sv, hunk, 4);
3201 for (s = SvPVX(sv); *s; s++) {
3205 sv_catpvn(sv, "\n", 1);
3213 SV *result = newSVpv("", l);
3214 char *result_c = SvPV(result, na); /* convenience */
3215 char *out = result_c;
3225 SvREFCNT_dec(result);
3248 SvREFCNT_dec(result);
3254 SvCUR_set(result, out - result_c);
3260 SV *pnum; /* must be '\0' terminated */
3264 char *s = SvPV(pnum, len);
3273 i = m * 10 + (*t - '0');
3275 r = (i >> 7); /* r < 10 */
3282 SvCUR_set(pnum, (STRLEN) (t - s));
3289 dSP; dMARK; dORIGMARK; dTARGET;
3290 register SV *cat = TARG;
3293 register char *pat = SvPVx(*++MARK, fromlen);
3294 register char *patend = pat + fromlen;
3299 static char null10[] = {0,0,0,0,0,0,0,0,0,0};
3300 static char *space10 = " ";
3302 /* These must not be in registers: */
3311 unsigned Quad_t auquad;
3319 sv_setpvn(cat, "", 0);
3320 while (pat < patend) {
3321 #define NEXTFROM (items-- > 0 ? *MARK++ : &sv_no)
3324 len = strchr("@Xxu", datumtype) ? 0 : items;
3327 else if (isDIGIT(*pat)) {
3329 while (isDIGIT(*pat))
3330 len = (len * 10) + (*pat++ - '0');
3338 DIE("%% may only be used in unpack");
3349 if (SvCUR(cat) < len)
3350 DIE("X outside of string");
3357 sv_catpvn(cat, null10, 10);
3360 sv_catpvn(cat, null10, len);
3365 aptr = SvPV(fromstr, fromlen);
3369 sv_catpvn(cat, aptr, len);
3371 sv_catpvn(cat, aptr, fromlen);
3373 if (datumtype == 'A') {
3375 sv_catpvn(cat, space10, 10);
3378 sv_catpvn(cat, space10, len);
3382 sv_catpvn(cat, null10, 10);
3385 sv_catpvn(cat, null10, len);
3392 char *savepat = pat;
3397 aptr = SvPV(fromstr, fromlen);
3402 SvCUR(cat) += (len+7)/8;
3403 SvGROW(cat, SvCUR(cat) + 1);
3404 aptr = SvPVX(cat) + aint;
3409 if (datumtype == 'B') {
3410 for (len = 0; len++ < aint;) {
3411 items |= *pat++ & 1;
3415 *aptr++ = items & 0xff;
3421 for (len = 0; len++ < aint;) {
3427 *aptr++ = items & 0xff;
3433 if (datumtype == 'B')
3434 items <<= 7 - (aint & 7);
3436 items >>= 7 - (aint & 7);
3437 *aptr++ = items & 0xff;
3439 pat = SvPVX(cat) + SvCUR(cat);
3450 char *savepat = pat;
3455 aptr = SvPV(fromstr, fromlen);
3460 SvCUR(cat) += (len+1)/2;
3461 SvGROW(cat, SvCUR(cat) + 1);
3462 aptr = SvPVX(cat) + aint;
3467 if (datumtype == 'H') {
3468 for (len = 0; len++ < aint;) {
3470 items |= ((*pat++ & 15) + 9) & 15;
3472 items |= *pat++ & 15;
3476 *aptr++ = items & 0xff;
3482 for (len = 0; len++ < aint;) {
3484 items |= (((*pat++ & 15) + 9) & 15) << 4;
3486 items |= (*pat++ & 15) << 4;
3490 *aptr++ = items & 0xff;
3496 *aptr++ = items & 0xff;
3497 pat = SvPVX(cat) + SvCUR(cat);
3509 aint = SvIV(fromstr);
3511 sv_catpvn(cat, &achar, sizeof(char));
3514 /* Float and double added by gnb@melba.bby.oz.au 22/11/89 */
3519 afloat = (float)SvNV(fromstr);
3520 sv_catpvn(cat, (char *)&afloat, sizeof (float));
3527 adouble = (double)SvNV(fromstr);
3528 sv_catpvn(cat, (char *)&adouble, sizeof (double));
3534 ashort = (I16)SvIV(fromstr);
3536 ashort = htons(ashort);
3538 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3544 ashort = (I16)SvIV(fromstr);
3546 ashort = htovs(ashort);
3548 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3555 ashort = (I16)SvIV(fromstr);
3556 sv_catpvn(cat, (char*)&ashort, sizeof(I16));
3562 auint = U_I(SvNV(fromstr));
3563 sv_catpvn(cat, (char*)&auint, sizeof(unsigned int));
3569 adouble = floor(SvNV(fromstr));
3572 croak("Cannot compress negative numbers");
3574 if (adouble <= UV_MAX) {
3575 char buf[1 + sizeof(UV)];
3576 char *in = buf + sizeof(buf);
3577 UV auv = U_V(adouble);;
3580 *--in = (auv & 0x7f) | 0x80;
3583 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3584 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3586 else if (SvPOKp(fromstr)) { /* decimal string arithmetics */
3587 char *from, *result, *in;
3592 /* Copy string and check for compliance */
3593 from = SvPV(fromstr, len);
3594 if ((norm = is_an_int(from, len)) == NULL)
3595 croak("can compress only unsigned integer");
3597 New('w', result, len, char);
3601 *--in = div128(norm, &done) | 0x80;
3602 result[len - 1] &= 0x7F; /* clear continue bit */
3603 sv_catpvn(cat, in, (result + len) - in);
3605 SvREFCNT_dec(norm); /* free norm */
3607 else if (SvNOKp(fromstr)) {
3608 char buf[sizeof(double) * 2]; /* 8/7 <= 2 */
3609 char *in = buf + sizeof(buf);
3612 double next = floor(adouble / 128);
3613 *--in = (unsigned char)(adouble - (next * 128)) | 0x80;
3614 if (--in < buf) /* this cannot happen ;-) */
3615 croak ("Cannot compress integer");
3617 } while (adouble > 0);
3618 buf[sizeof(buf) - 1] &= 0x7f; /* clear continue bit */
3619 sv_catpvn(cat, in, (buf + sizeof(buf)) - in);
3622 croak("Cannot compress non integer");
3628 aint = SvIV(fromstr);
3629 sv_catpvn(cat, (char*)&aint, sizeof(int));
3635 aulong = U_L(SvNV(fromstr));
3637 aulong = htonl(aulong);
3639 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3645 aulong = U_L(SvNV(fromstr));
3647 aulong = htovl(aulong);
3649 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3655 aulong = U_L(SvNV(fromstr));
3656 sv_catpvn(cat, (char*)&aulong, sizeof(U32));
3662 along = SvIV(fromstr);
3663 sv_catpvn(cat, (char*)&along, sizeof(I32));
3670 auquad = (unsigned Quad_t)SvIV(fromstr);
3671 sv_catpvn(cat, (char*)&auquad, sizeof(unsigned Quad_t));
3677 aquad = (Quad_t)SvIV(fromstr);
3678 sv_catpvn(cat, (char*)&aquad, sizeof(Quad_t));
3681 #endif /* HAS_QUAD */
3683 len = 1; /* assume SV is correct length */
3688 aptr = SvPV_force(fromstr, na); /* XXX Error if TEMP? */
3689 sv_catpvn(cat, (char*)&aptr, sizeof(char*));
3694 aptr = SvPV(fromstr, fromlen);
3695 SvGROW(cat, fromlen * 4 / 3);
3700 while (fromlen > 0) {
3707 doencodes(cat, aptr, todo);
3725 register I32 limit = POPi; /* note, negative is forever */
3728 register char *s = SvPV(sv, len);
3729 char *strend = s + len;
3731 register REGEXP *rx;
3735 I32 maxiters = (strend - s) + 10;
3738 I32 origlimit = limit;
3741 AV *oldstack = curstack;
3743 I32 oldsave = savestack_ix;
3746 Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*);
3751 DIE("panic: do_split");
3752 rx = pm->op_pmregexp;
3754 TAINT_IF((pm->op_pmflags & PMf_LOCALE) &&
3755 (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE)));
3757 if (pm->op_pmreplroot)
3758 ary = GvAVn((GV*)pm->op_pmreplroot);
3759 else if (gimme != G_ARRAY)
3763 if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) {
3767 for (i = AvFILL(ary); i >= 0; i--)
3768 AvARRAY(ary)[i] = &sv_undef; /* don't free mere refs */
3772 /* temporarily switch stacks */
3773 SWITCHSTACK(curstack, ary);
3775 base = SP - stack_base;
3777 if (pm->op_pmflags & PMf_SKIPWHITE) {
3778 if (pm->op_pmflags & PMf_LOCALE) {
3779 while (isSPACE_LC(*s))
3787 if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) {
3789 multiline = pm->op_pmflags & PMf_MULTILINE;
3793 limit = maxiters + 2;
3794 if (pm->op_pmflags & PMf_WHITE) {
3797 while (m < strend &&
3798 !((pm->op_pmflags & PMf_LOCALE)
3799 ? isSPACE_LC(*m) : isSPACE(*m)))
3804 dstr = NEWSV(30, m-s);
3805 sv_setpvn(dstr, s, m-s);
3811 while (s < strend &&
3812 ((pm->op_pmflags & PMf_LOCALE)
3813 ? isSPACE_LC(*s) : isSPACE(*s)))
3817 else if (strEQ("^", rx->precomp)) {
3820 for (m = s; m < strend && *m != '\n'; m++) ;
3824 dstr = NEWSV(30, m-s);
3825 sv_setpvn(dstr, s, m-s);
3832 else if (pm->op_pmshort && !rx->nparens) {
3833 i = SvCUR(pm->op_pmshort);
3835 i = *SvPVX(pm->op_pmshort);
3838 for (m = s; m < strend && *m != i; m++) ;
3841 dstr = NEWSV(30, m-s);
3842 sv_setpvn(dstr, s, m-s);
3851 while (s < strend && --limit &&
3852 (m=fbm_instr((unsigned char*)s, (unsigned char*)strend,
3856 dstr = NEWSV(31, m-s);
3857 sv_setpvn(dstr, s, m-s);
3866 maxiters += (strend - s) * rx->nparens;
3867 while (s < strend && --limit &&
3868 pregexec(rx, s, strend, orig, 1, Nullsv, TRUE))
3870 TAINT_IF(rx->exec_tainted);
3872 && rx->subbase != orig) {
3877 strend = s + (strend - m);
3880 dstr = NEWSV(32, m-s);
3881 sv_setpvn(dstr, s, m-s);
3886 for (i = 1; i <= rx->nparens; i++) {
3890 dstr = NEWSV(33, m-s);
3891 sv_setpvn(dstr, s, m-s);
3894 dstr = NEWSV(33, 0);
3903 LEAVE_SCOPE(oldsave);
3904 iters = (SP - stack_base) - base;
3905 if (iters > maxiters)
3908 /* keep field after final delim? */
3909 if (s < strend || (iters && origlimit)) {
3910 dstr = NEWSV(34, strend-s);
3911 sv_setpvn(dstr, s, strend-s);
3917 else if (!origlimit) {
3918 while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0))
3922 SWITCHSTACK(ary, oldstack);
3923 if (gimme == G_ARRAY) {
3925 Copy(AvARRAY(ary), SP + 1, iters, SV*);
3931 if (gimme == G_ARRAY)
3934 if (iters || !pm->op_pmreplroot) {