3 * Copyright (c) 1991-2001, 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 * "'So that was the job I felt I had to do when I started,' thought Sam."
15 #define PERL_IN_DOOP_C
19 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
25 S_do_trans_simple(pTHX_ SV *sv)
32 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
37 tbl = (short*)cPVOP->op_pv;
39 Perl_croak(aTHX_ "panic: do_trans_simple");
41 s = (U8*)SvPV(sv, len);
44 /* First, take care of non-UTF8 input strings, because they're easy */
47 if ((ch = tbl[*s]) >= 0) {
58 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
60 New(0, d, len*2+1, U8);
68 /* Need to check this, otherwise 128..255 won't match */
69 c = utf8n_to_uvchr(s, send - s, &ulen, 0);
70 if (c < 0x100 && (ch = tbl[c]) >= 0) {
72 d = uvchr_to_utf8(d, ch);
75 else { /* No match -> copy */
82 sv_setpvn(sv, (char*)dstart, d - dstart);
87 SvCUR_set(sv, d - dstart);
95 S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */
102 I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
104 tbl = (short*)cPVOP->op_pv;
106 Perl_croak(aTHX_ "panic: do_trans_count");
108 s = (U8*)SvPV(sv, len);
120 c = utf8n_to_uvchr(s, send - s, &ulen, 0);
124 } else if (complement)
133 S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */
141 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
142 I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
143 I32 del = PL_op->op_private & OPpTRANS_DELETE;
148 tbl = (short*)cPVOP->op_pv;
150 Perl_croak(aTHX_ "panic: do_trans_complex");
152 s = (U8*)SvPV(sv, len);
158 if (PL_op->op_private & OPpTRANS_SQUASH) {
161 if ((ch = tbl[*s]) >= 0) {
164 if (p != d - 1 || *p != *d)
167 else if (ch == -1) /* -1 is unmapped character */
169 else if (ch == -2) /* -2 is delete character */
176 if ((ch = tbl[*s]) >= 0) {
180 else if (ch == -1) /* -1 is unmapped character */
182 else if (ch == -2) /* -2 is delete character */
187 SvCUR_set(sv, d - dstart);
191 New(0, d, len*2+1, U8);
195 if (complement && !del)
198 #ifdef MACOS_TRADITIONAL
199 #define comp CoMP /* "comp" is a keyword in some compilers ... */
202 if (PL_op->op_private & OPpTRANS_SQUASH) {
206 UV comp = utf8_to_uvchr(s, &len);
216 ch = (rlen == 0) ? comp :
217 (comp - 0x100 < rlen) ?
218 tbl[comp+1] : tbl[0x100+rlen];
220 d = uvchr_to_utf8(d, ch);
228 else if ((ch = tbl[comp]) >= 0) {
231 d = uvchr_to_utf8(d, ch);
237 else if (ch == -1) { /* -1 is unmapped character */
241 else if (ch == -2) /* -2 is delete character */
250 UV comp = utf8_to_uvchr(s, &len);
259 if (comp - 0x100 < rlen)
260 d = uvchr_to_utf8(d, tbl[comp+1]);
262 d = uvchr_to_utf8(d, tbl[0x100+rlen]);
266 else if ((ch = tbl[comp]) >= 0) {
267 d = uvchr_to_utf8(d, ch);
270 else if (ch == -1) { /* -1 is unmapped character */
274 else if (ch == -2) /* -2 is delete character */
280 sv_setpvn(sv, (char*)dstart, d - dstart);
285 SvCUR_set(sv, d - dstart);
294 S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */
302 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
305 SV* rv = (SV*)cSVOP->op_sv;
306 HV* hv = (HV*)SvRV(rv);
307 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
308 UV none = svp ? SvUV(*svp) : 0x7fffffff;
315 s = (U8*)SvPV(sv, len);
318 U8 *t = s, *e = s + len;
320 if ((hibit = !UTF8_IS_INVARIANT(*t++)))
323 s = bytes_to_utf8(s, &len);
328 svp = hv_fetch(hv, "FINAL", 5, FALSE);
333 /* d needs to be bigger than s, in case e.g. upgrading is required */
334 New(0, d, len*3+UTF8_MAXLEN, U8);
344 if ((uv = swash_fetch(rv, s)) < none) {
347 d = uvchr_to_utf8(d, uv);
349 else if (uv == none) {
355 else if (uv == extra) {
359 d = uvchr_to_utf8(d, final);
365 STRLEN clen = d - dstart;
366 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
368 Perl_croak(aTHX_ "panic: do_trans_complex_utf8");
369 Renew(dstart, nlen+UTF8_MAXLEN, U8);
371 dend = dstart + nlen;
374 if (grows || hibit) {
375 sv_setpvn(sv, (char*)dstart, d - dstart);
382 SvCUR_set(sv, d - dstart);
386 /* Downgrading just 'cos it will is suspect - NI-S */
387 if (!isutf8 && !(PL_hints & HINT_UTF8))
388 sv_utf8_downgrade(sv, TRUE);
394 S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */
401 SV* rv = (SV*)cSVOP->op_sv;
402 HV* hv = (HV*)SvRV(rv);
403 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
404 UV none = svp ? SvUV(*svp) : 0x7fffffff;
409 s = (U8*)SvPV(sv, len);
411 U8 *t = s, *e = s + len;
413 if ((hibit = !UTF8_IS_INVARIANT(*t++)))
416 start = s = bytes_to_utf8(s, &len);
421 if ((uv = swash_fetch(rv, s)) < none || uv == extra)
432 S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */
438 I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
439 I32 del = PL_op->op_private & OPpTRANS_DELETE;
440 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
441 SV* rv = (SV*)cSVOP->op_sv;
442 HV* hv = (HV*)SvRV(rv);
443 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
444 UV none = svp ? SvUV(*svp) : 0x7fffffff;
447 bool havefinal = FALSE;
454 s = (U8*)SvPV(sv, len);
457 U8 *t = s, *e = s + len;
459 if ((hibit = !UTF8_IS_INVARIANT(*t++)))
462 s = bytes_to_utf8(s, &len);
467 svp = hv_fetch(hv, "FINAL", 5, FALSE);
474 /* d needs to be bigger than s, in case e.g. upgrading is required */
475 New(0, d, len*3+UTF8_MAXLEN, U8);
487 uv = swash_fetch(rv, s);
490 STRLEN clen = d - dstart;
491 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
493 Perl_croak(aTHX_ "panic: do_trans_complex_utf8");
494 Renew(dstart, nlen+UTF8_MAXLEN, U8);
496 dend = dstart + nlen;
502 d = uvchr_to_utf8(d, uv);
507 else if (uv == none) { /* "none" is unmapped character */
515 else if (uv == extra && !del) {
520 d = uvchr_to_utf8(d, final);
526 uv = utf8_to_uvchr(s, &len);
536 matches++; /* "none+1" is delete character */
542 uv = swash_fetch(rv, s);
544 STRLEN clen = d - dstart;
545 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
547 Perl_croak(aTHX_ "panic: do_trans_complex_utf8");
548 Renew(dstart, nlen+UTF8_MAXLEN, U8);
550 dend = dstart + nlen;
555 d = uvchr_to_utf8(d, uv);
558 else if (uv == none) { /* "none" is unmapped character */
565 else if (uv == extra && !del) {
568 d = uvchr_to_utf8(d, final);
571 matches++; /* "none+1" is delete character */
575 if (grows || hibit) {
576 sv_setpvn(sv, (char*)dstart, d - dstart);
583 SvCUR_set(sv, d - dstart);
586 if (!isutf8 && !(PL_hints & HINT_UTF8))
587 sv_utf8_downgrade(sv, TRUE);
594 Perl_do_trans(pTHX_ SV *sv)
597 I32 hasutf = (PL_op->op_private &
598 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
600 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
601 Perl_croak(aTHX_ PL_no_modify);
607 (void)SvPV_force(sv, len);
608 if (!(PL_op->op_private & OPpTRANS_IDENTICAL))
609 (void)SvPOK_only_UTF8(sv);
611 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
613 switch (PL_op->op_private & ~hasutf & 63) {
616 return do_trans_simple_utf8(sv);
618 return do_trans_simple(sv);
620 case OPpTRANS_IDENTICAL:
621 case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT:
623 return do_trans_count_utf8(sv);
625 return do_trans_count(sv);
629 return do_trans_complex_utf8(sv);
631 return do_trans_complex(sv);
636 Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
639 register I32 items = sp - mark;
642 register char *delim = SvPV(del, delimlen);
646 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
647 (void)SvUPGRADE(sv, SVt_PV);
648 if (SvLEN(sv) < len + items) { /* current length is way too short */
649 while (items-- > 0) {
650 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
656 SvGROW(sv, len + 1); /* so try to pre-extend */
672 for (; items > 0; items--,mark++) {
678 for (; items > 0; items--,mark++)
685 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
688 char *pat = SvPV(*sarg, patlen);
689 bool do_taint = FALSE;
691 sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
697 /* currently converts input to bytes if possible, but doesn't sweat failure */
699 Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
702 unsigned char *s = (unsigned char *) SvPV(sv, srclen);
707 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
708 Perl_croak(aTHX_ "Illegal number of bits in vec");
711 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
713 offset *= size; /* turn into bit offset */
714 len = (offset + size + 7) / 8; /* required number of bytes */
719 offset >>= 3; /* turn into byte offset */
721 if (offset >= srclen)
724 retnum = (UV) s[offset] << 8;
726 else if (size == 32) {
727 if (offset >= srclen)
729 else if (offset + 1 >= srclen)
731 ((UV) s[offset ] << 24);
732 else if (offset + 2 >= srclen)
734 ((UV) s[offset ] << 24) +
735 ((UV) s[offset + 1] << 16);
738 ((UV) s[offset ] << 24) +
739 ((UV) s[offset + 1] << 16) +
740 ( s[offset + 2] << 8);
743 else if (size == 64) {
744 if (ckWARN(WARN_PORTABLE))
745 Perl_warner(aTHX_ WARN_PORTABLE,
746 "Bit vector size > 32 non-portable");
747 if (offset >= srclen)
749 else if (offset + 1 >= srclen)
751 (UV) s[offset ] << 56;
752 else if (offset + 2 >= srclen)
754 ((UV) s[offset ] << 56) +
755 ((UV) s[offset + 1] << 48);
756 else if (offset + 3 >= srclen)
758 ((UV) s[offset ] << 56) +
759 ((UV) s[offset + 1] << 48) +
760 ((UV) s[offset + 2] << 40);
761 else if (offset + 4 >= srclen)
763 ((UV) s[offset ] << 56) +
764 ((UV) s[offset + 1] << 48) +
765 ((UV) s[offset + 2] << 40) +
766 ((UV) s[offset + 3] << 32);
767 else if (offset + 5 >= srclen)
769 ((UV) s[offset ] << 56) +
770 ((UV) s[offset + 1] << 48) +
771 ((UV) s[offset + 2] << 40) +
772 ((UV) s[offset + 3] << 32) +
773 ( s[offset + 4] << 24);
774 else if (offset + 6 >= srclen)
776 ((UV) s[offset ] << 56) +
777 ((UV) s[offset + 1] << 48) +
778 ((UV) s[offset + 2] << 40) +
779 ((UV) s[offset + 3] << 32) +
780 ((UV) s[offset + 4] << 24) +
781 ((UV) s[offset + 5] << 16);
784 ((UV) s[offset ] << 56) +
785 ((UV) s[offset + 1] << 48) +
786 ((UV) s[offset + 2] << 40) +
787 ((UV) s[offset + 3] << 32) +
788 ((UV) s[offset + 4] << 24) +
789 ((UV) s[offset + 5] << 16) +
790 ( s[offset + 6] << 8);
796 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
798 offset >>= 3; /* turn into byte offset */
803 ((UV) s[offset] << 8) +
807 ((UV) s[offset ] << 24) +
808 ((UV) s[offset + 1] << 16) +
809 ( s[offset + 2] << 8) +
812 else if (size == 64) {
813 if (ckWARN(WARN_PORTABLE))
814 Perl_warner(aTHX_ WARN_PORTABLE,
815 "Bit vector size > 32 non-portable");
817 ((UV) s[offset ] << 56) +
818 ((UV) s[offset + 1] << 48) +
819 ((UV) s[offset + 2] << 40) +
820 ((UV) s[offset + 3] << 32) +
821 ((UV) s[offset + 4] << 24) +
822 ((UV) s[offset + 5] << 16) +
823 ( s[offset + 6] << 8) +
832 /* currently converts input to bytes if possible but doesn't sweat failures,
833 * although it does ensure that the string it clobbers is not marked as
834 * utf8-valid any more
837 Perl_do_vecset(pTHX_ SV *sv)
839 SV *targ = LvTARG(sv);
842 register unsigned char *s;
850 s = (unsigned char*)SvPV_force(targ, targlen);
852 /* This is handled by the SvPOK_only below...
853 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
856 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
859 (void)SvPOK_only(targ);
861 offset = LvTARGOFF(sv);
863 Perl_croak(aTHX_ "Assigning to negative offset in vec");
864 size = LvTARGLEN(sv);
865 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
866 Perl_croak(aTHX_ "Illegal number of bits in vec");
868 offset *= size; /* turn into bit offset */
869 len = (offset + size + 7) / 8; /* required number of bytes */
871 s = (unsigned char*)SvGROW(targ, len + 1);
872 (void)memzero((char *)(s + targlen), len - targlen + 1);
873 SvCUR_set(targ, len);
877 mask = (1 << size) - 1;
880 offset >>= 3; /* turn into byte offset */
881 s[offset] &= ~(mask << size);
882 s[offset] |= lval << size;
885 offset >>= 3; /* turn into byte offset */
887 s[offset ] = lval & 0xff;
888 else if (size == 16) {
889 s[offset ] = (lval >> 8) & 0xff;
890 s[offset+1] = lval & 0xff;
892 else if (size == 32) {
893 s[offset ] = (lval >> 24) & 0xff;
894 s[offset+1] = (lval >> 16) & 0xff;
895 s[offset+2] = (lval >> 8) & 0xff;
896 s[offset+3] = lval & 0xff;
899 else if (size == 64) {
900 if (ckWARN(WARN_PORTABLE))
901 Perl_warner(aTHX_ WARN_PORTABLE,
902 "Bit vector size > 32 non-portable");
903 s[offset ] = (lval >> 56) & 0xff;
904 s[offset+1] = (lval >> 48) & 0xff;
905 s[offset+2] = (lval >> 40) & 0xff;
906 s[offset+3] = (lval >> 32) & 0xff;
907 s[offset+4] = (lval >> 24) & 0xff;
908 s[offset+5] = (lval >> 16) & 0xff;
909 s[offset+6] = (lval >> 8) & 0xff;
910 s[offset+7] = lval & 0xff;
918 Perl_do_chop(pTHX_ register SV *astr, register SV *sv)
923 if (SvTYPE(sv) == SVt_PVAV) {
928 for (i = 0; i <= max; i++) {
929 sv = (SV*)av_fetch(av, i, FALSE);
930 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
935 else if (SvTYPE(sv) == SVt_PVHV) {
938 (void)hv_iterinit(hv);
940 while ((entry = hv_iternext(hv)))
941 do_chop(astr,hv_iterval(hv,entry));
944 else if (SvREADONLY(sv))
945 Perl_croak(aTHX_ PL_no_modify);
947 if (len && !SvPOK(sv))
948 s = SvPV_force(sv, len);
951 char *send = s + len;
954 while (s > start && UTF8_IS_CONTINUATION(*s))
956 if (utf8_to_uvchr((U8*)s, 0)) {
957 sv_setpvn(astr, s, send - s);
959 SvCUR_set(sv, s - start);
965 sv_setpvn(astr, "", 0);
969 sv_setpvn(astr, s, 1);
976 sv_setpvn(astr, "", 0);
981 Perl_do_chomp(pTHX_ register SV *sv)
992 if (SvTYPE(sv) == SVt_PVAV) {
997 for (i = 0; i <= max; i++) {
998 sv = (SV*)av_fetch(av, i, FALSE);
999 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
1000 count += do_chomp(sv);
1004 else if (SvTYPE(sv) == SVt_PVHV) {
1007 (void)hv_iterinit(hv);
1009 while ((entry = hv_iternext(hv)))
1010 count += do_chomp(hv_iterval(hv,entry));
1013 else if (SvREADONLY(sv))
1014 Perl_croak(aTHX_ PL_no_modify);
1016 if (len && !SvPOKp(sv))
1017 s = SvPV_force(sv, len);
1020 if (RsPARA(PL_rs)) {
1024 while (len && s[-1] == '\n') {
1032 char *rsptr = SvPV(PL_rs, rslen);
1039 if (len < rslen - 1)
1043 if (memNE(s, rsptr, rslen))
1058 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
1074 bool left_utf = DO_UTF8(left);
1075 bool right_utf = DO_UTF8(right);
1078 if (left_utf && !right_utf)
1079 sv_utf8_upgrade(right);
1080 else if (!left_utf && right_utf)
1081 sv_utf8_upgrade(left);
1083 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
1084 sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
1085 lsave = lc = SvPV(left, leftlen);
1086 rsave = rc = SvPV(right, rightlen);
1087 len = leftlen < rightlen ? leftlen : rightlen;
1089 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1090 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
1091 Newz(801, dc, needlen + 1, char);
1093 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
1095 dc = SvPV_force(sv, n_a);
1096 if (SvCUR(sv) < len) {
1097 dc = SvGROW(sv, len + 1);
1098 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1100 if (optype != OP_BIT_AND && (left_utf || right_utf))
1101 dc = SvGROW(sv, leftlen + rightlen + 1);
1104 needlen = ((optype == OP_BIT_AND)
1105 ? len : (leftlen > rightlen ? leftlen : rightlen));
1106 Newz(801, dc, needlen + 1, char);
1107 (void)sv_usepvn(sv, dc, needlen);
1108 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
1111 (void)SvPOK_only(sv);
1112 if (left_utf || right_utf) {
1115 STRLEN lulen = leftlen;
1116 STRLEN rulen = rightlen;
1121 while (lulen && rulen) {
1122 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1125 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1129 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1131 if (sv == left || sv == right)
1132 (void)sv_usepvn(sv, dcsave, needlen);
1133 SvCUR_set(sv, dc - dcsave);
1136 while (lulen && rulen) {
1137 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1140 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1144 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1148 while (lulen && rulen) {
1149 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1152 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1156 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1159 if (sv == left || sv == right)
1160 (void)sv_usepvn(sv, dcsave, needlen);
1161 SvCUR_set(sv, dc - dcsave);
1163 sv_catpvn(sv, rc, rulen);
1165 sv_catpvn(sv, lc, lulen);
1175 if (len >= sizeof(long)*4 &&
1176 !((long)dc % sizeof(long)) &&
1177 !((long)lc % sizeof(long)) &&
1178 !((long)rc % sizeof(long))) /* It's almost always aligned... */
1180 I32 remainder = len % (sizeof(long)*4);
1181 len /= (sizeof(long)*4);
1190 *dl++ = *ll++ & *rl++;
1191 *dl++ = *ll++ & *rl++;
1192 *dl++ = *ll++ & *rl++;
1193 *dl++ = *ll++ & *rl++;
1198 *dl++ = *ll++ ^ *rl++;
1199 *dl++ = *ll++ ^ *rl++;
1200 *dl++ = *ll++ ^ *rl++;
1201 *dl++ = *ll++ ^ *rl++;
1206 *dl++ = *ll++ | *rl++;
1207 *dl++ = *ll++ | *rl++;
1208 *dl++ = *ll++ | *rl++;
1209 *dl++ = *ll++ | *rl++;
1224 *dc++ = *lc++ & *rc++;
1228 *dc++ = *lc++ ^ *rc++;
1232 *dc++ = *lc++ | *rc++;
1236 sv_catpvn(sv, rsave + len, rightlen - len);
1237 else if (leftlen > len)
1238 sv_catpvn(sv, lsave + len, leftlen - len);
1256 I32 gimme = GIMME_V;
1257 I32 dokeys = (PL_op->op_type == OP_KEYS);
1258 I32 dovalues = (PL_op->op_type == OP_VALUES);
1259 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
1261 if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV)
1262 dokeys = dovalues = TRUE;
1265 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1266 dTARGET; /* make sure to clear its target here */
1267 if (SvTYPE(TARG) == SVt_PVLV)
1268 LvTARG(TARG) = Nullsv;
1274 keys = realhv ? hv : avhv_keys((AV*)hv);
1275 (void)hv_iterinit(keys); /* always reset iterator regardless */
1277 if (gimme == G_VOID)
1280 if (gimme == G_SCALAR) {
1284 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1285 if (SvTYPE(TARG) < SVt_PVLV) {
1286 sv_upgrade(TARG, SVt_PVLV);
1287 sv_magic(TARG, Nullsv, 'k', Nullch, 0);
1290 if (LvTARG(TARG) != (SV*)keys) {
1292 SvREFCNT_dec(LvTARG(TARG));
1293 LvTARG(TARG) = SvREFCNT_inc(keys);
1299 if (! SvTIED_mg((SV*)keys, 'P'))
1304 while (hv_iternext(keys)) i++;
1310 EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
1312 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
1313 while ((entry = hv_iternext(keys))) {
1316 XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1320 hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
1321 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
1322 (unsigned long)HeHASH(entry),
1324 (unsigned long)(HeHASH(entry) & HvMAX(keys))));