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 = (comp - 0x100 < rlen) ?
217 tbl[comp+1] : tbl[0x100+rlen];
219 d = uvchr_to_utf8(d, ch);
227 else if ((ch = tbl[comp]) >= 0) {
230 d = uvchr_to_utf8(d, ch);
236 else if (ch == -1) { /* -1 is unmapped character */
240 else if (ch == -2) /* -2 is delete character */
249 UV comp = utf8_to_uvchr(s, &len);
258 if (comp - 0x100 < rlen)
259 d = uvchr_to_utf8(d, tbl[comp+1]);
261 d = uvchr_to_utf8(d, tbl[0x100+rlen]);
265 else if ((ch = tbl[comp]) >= 0) {
266 d = uvchr_to_utf8(d, ch);
269 else if (ch == -1) { /* -1 is unmapped character */
273 else if (ch == -2) /* -2 is delete character */
279 sv_setpvn(sv, (char*)dstart, d - dstart);
284 SvCUR_set(sv, d - dstart);
293 S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */
301 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
304 SV* rv = (SV*)cSVOP->op_sv;
305 HV* hv = (HV*)SvRV(rv);
306 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
307 UV none = svp ? SvUV(*svp) : 0x7fffffff;
314 s = (U8*)SvPV(sv, len);
317 U8 *t = s, *e = s + len;
319 if ((hibit = UTF8_IS_CONTINUED(*t++)))
322 s = bytes_to_utf8(s, &len);
327 svp = hv_fetch(hv, "FINAL", 5, FALSE);
332 /* d needs to be bigger than s, in case e.g. upgrading is required */
333 New(0, d, len*3+UTF8_MAXLEN, U8);
343 if ((uv = swash_fetch(rv, s)) < none) {
346 d = uvchr_to_utf8(d, uv);
348 else if (uv == none) {
354 else if (uv == extra) {
358 d = uvchr_to_utf8(d, final);
364 STRLEN clen = d - dstart;
365 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
367 Perl_croak(aTHX_ "panic: do_trans_complex_utf8");
368 Renew(dstart, nlen+UTF8_MAXLEN, U8);
370 dend = dstart + nlen;
373 if (grows || hibit) {
374 sv_setpvn(sv, (char*)dstart, d - dstart);
381 SvCUR_set(sv, d - dstart);
385 /* Downgrading just 'cos it will is suspect - NI-S */
386 if (!isutf8 && !(PL_hints & HINT_UTF8))
387 sv_utf8_downgrade(sv, TRUE);
393 S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */
400 SV* rv = (SV*)cSVOP->op_sv;
401 HV* hv = (HV*)SvRV(rv);
402 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
403 UV none = svp ? SvUV(*svp) : 0x7fffffff;
407 s = (U8*)SvPV(sv, len);
409 U8 *t = s, *e = s + len;
411 if ((hibit = !UTF8_IS_ASCII(*t++)))
414 start = s = bytes_to_utf8(s, &len);
419 if ((uv = swash_fetch(rv, s)) < none)
430 S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */
436 I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
437 I32 del = PL_op->op_private & OPpTRANS_DELETE;
438 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
439 SV* rv = (SV*)cSVOP->op_sv;
440 HV* hv = (HV*)SvRV(rv);
441 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
442 UV none = svp ? SvUV(*svp) : 0x7fffffff;
451 s = (U8*)SvPV(sv, len);
454 U8 *t = s, *e = s + len;
456 if ((hibit = !UTF8_IS_ASCII(*t++)))
459 s = bytes_to_utf8(s, &len);
464 svp = hv_fetch(hv, "FINAL", 5, FALSE);
469 /* d needs to be bigger than s, in case e.g. upgrading is required */
470 New(0, d, len*3+UTF8_MAXLEN, U8);
482 uv = swash_fetch(rv, s);
485 STRLEN clen = d - dstart;
486 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
488 Perl_croak(aTHX_ "panic: do_trans_complex_utf8");
489 Renew(dstart, nlen+UTF8_MAXLEN, U8);
491 dend = dstart + nlen;
497 d = uvchr_to_utf8(d, uv);
502 else if (uv == none) { /* "none" is unmapped character */
510 else if (uv == extra && !del) {
514 d = uvchr_to_utf8(d, final);
519 matches++; /* "none+1" is delete character */
525 uv = swash_fetch(rv, s);
527 STRLEN clen = d - dstart;
528 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
530 Perl_croak(aTHX_ "panic: do_trans_complex_utf8");
531 Renew(dstart, nlen+UTF8_MAXLEN, U8);
533 dend = dstart + nlen;
538 d = uvchr_to_utf8(d, uv);
541 else if (uv == none) { /* "none" is unmapped character */
548 else if (uv == extra && !del) {
551 d = uvchr_to_utf8(d, final);
554 matches++; /* "none+1" is delete character */
558 if (grows || hibit) {
559 sv_setpvn(sv, (char*)dstart, d - dstart);
566 SvCUR_set(sv, d - dstart);
569 if (!isutf8 && !(PL_hints & HINT_UTF8))
570 sv_utf8_downgrade(sv, TRUE);
577 Perl_do_trans(pTHX_ SV *sv)
580 I32 hasutf = (PL_op->op_private &
581 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
583 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
584 Perl_croak(aTHX_ PL_no_modify);
590 (void)SvPV_force(sv, len);
591 if (!(PL_op->op_private & OPpTRANS_IDENTICAL))
592 (void)SvPOK_only_UTF8(sv);
594 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
596 switch (PL_op->op_private & ~hasutf & 63) {
599 return do_trans_simple_utf8(sv);
601 return do_trans_simple(sv);
603 case OPpTRANS_IDENTICAL:
605 return do_trans_count_utf8(sv);
607 return do_trans_count(sv);
611 return do_trans_complex_utf8(sv);
613 return do_trans_complex(sv);
618 Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
621 register I32 items = sp - mark;
624 register char *delim = SvPV(del, delimlen);
628 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
629 (void)SvUPGRADE(sv, SVt_PV);
630 if (SvLEN(sv) < len + items) { /* current length is way too short */
631 while (items-- > 0) {
632 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
638 SvGROW(sv, len + 1); /* so try to pre-extend */
654 for (; items > 0; items--,mark++) {
660 for (; items > 0; items--,mark++)
667 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
670 char *pat = SvPV(*sarg, patlen);
671 bool do_taint = FALSE;
673 sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
679 /* currently converts input to bytes if possible, but doesn't sweat failure */
681 Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
684 unsigned char *s = (unsigned char *) SvPV(sv, srclen);
689 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
690 Perl_croak(aTHX_ "Illegal number of bits in vec");
693 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
695 offset *= size; /* turn into bit offset */
696 len = (offset + size + 7) / 8; /* required number of bytes */
701 offset >>= 3; /* turn into byte offset */
703 if (offset >= srclen)
706 retnum = (UV) s[offset] << 8;
708 else if (size == 32) {
709 if (offset >= srclen)
711 else if (offset + 1 >= srclen)
713 ((UV) s[offset ] << 24);
714 else if (offset + 2 >= srclen)
716 ((UV) s[offset ] << 24) +
717 ((UV) s[offset + 1] << 16);
720 ((UV) s[offset ] << 24) +
721 ((UV) s[offset + 1] << 16) +
722 ( s[offset + 2] << 8);
725 else if (size == 64) {
726 if (ckWARN(WARN_PORTABLE))
727 Perl_warner(aTHX_ WARN_PORTABLE,
728 "Bit vector size > 32 non-portable");
729 if (offset >= srclen)
731 else if (offset + 1 >= srclen)
733 (UV) s[offset ] << 56;
734 else if (offset + 2 >= srclen)
736 ((UV) s[offset ] << 56) +
737 ((UV) s[offset + 1] << 48);
738 else if (offset + 3 >= srclen)
740 ((UV) s[offset ] << 56) +
741 ((UV) s[offset + 1] << 48) +
742 ((UV) s[offset + 2] << 40);
743 else if (offset + 4 >= srclen)
745 ((UV) s[offset ] << 56) +
746 ((UV) s[offset + 1] << 48) +
747 ((UV) s[offset + 2] << 40) +
748 ((UV) s[offset + 3] << 32);
749 else if (offset + 5 >= srclen)
751 ((UV) s[offset ] << 56) +
752 ((UV) s[offset + 1] << 48) +
753 ((UV) s[offset + 2] << 40) +
754 ((UV) s[offset + 3] << 32) +
755 ( s[offset + 4] << 24);
756 else if (offset + 6 >= srclen)
758 ((UV) s[offset ] << 56) +
759 ((UV) s[offset + 1] << 48) +
760 ((UV) s[offset + 2] << 40) +
761 ((UV) s[offset + 3] << 32) +
762 ((UV) s[offset + 4] << 24) +
763 ((UV) s[offset + 5] << 16);
766 ((UV) s[offset ] << 56) +
767 ((UV) s[offset + 1] << 48) +
768 ((UV) s[offset + 2] << 40) +
769 ((UV) s[offset + 3] << 32) +
770 ((UV) s[offset + 4] << 24) +
771 ((UV) s[offset + 5] << 16) +
772 ( s[offset + 6] << 8);
778 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
780 offset >>= 3; /* turn into byte offset */
785 ((UV) s[offset] << 8) +
789 ((UV) s[offset ] << 24) +
790 ((UV) s[offset + 1] << 16) +
791 ( s[offset + 2] << 8) +
794 else if (size == 64) {
795 if (ckWARN(WARN_PORTABLE))
796 Perl_warner(aTHX_ WARN_PORTABLE,
797 "Bit vector size > 32 non-portable");
799 ((UV) s[offset ] << 56) +
800 ((UV) s[offset + 1] << 48) +
801 ((UV) s[offset + 2] << 40) +
802 ((UV) s[offset + 3] << 32) +
803 ((UV) s[offset + 4] << 24) +
804 ((UV) s[offset + 5] << 16) +
805 ( s[offset + 6] << 8) +
814 /* currently converts input to bytes if possible but doesn't sweat failures,
815 * although it does ensure that the string it clobbers is not marked as
816 * utf8-valid any more
819 Perl_do_vecset(pTHX_ SV *sv)
821 SV *targ = LvTARG(sv);
824 register unsigned char *s;
832 s = (unsigned char*)SvPV_force(targ, targlen);
834 /* This is handled by the SvPOK_only below...
835 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
838 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
841 (void)SvPOK_only(targ);
843 offset = LvTARGOFF(sv);
845 Perl_croak(aTHX_ "Assigning to negative offset in vec");
846 size = LvTARGLEN(sv);
847 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
848 Perl_croak(aTHX_ "Illegal number of bits in vec");
850 offset *= size; /* turn into bit offset */
851 len = (offset + size + 7) / 8; /* required number of bytes */
853 s = (unsigned char*)SvGROW(targ, len + 1);
854 (void)memzero((char *)(s + targlen), len - targlen + 1);
855 SvCUR_set(targ, len);
859 mask = (1 << size) - 1;
862 offset >>= 3; /* turn into byte offset */
863 s[offset] &= ~(mask << size);
864 s[offset] |= lval << size;
867 offset >>= 3; /* turn into byte offset */
869 s[offset ] = lval & 0xff;
870 else if (size == 16) {
871 s[offset ] = (lval >> 8) & 0xff;
872 s[offset+1] = lval & 0xff;
874 else if (size == 32) {
875 s[offset ] = (lval >> 24) & 0xff;
876 s[offset+1] = (lval >> 16) & 0xff;
877 s[offset+2] = (lval >> 8) & 0xff;
878 s[offset+3] = lval & 0xff;
881 else if (size == 64) {
882 if (ckWARN(WARN_PORTABLE))
883 Perl_warner(aTHX_ WARN_PORTABLE,
884 "Bit vector size > 32 non-portable");
885 s[offset ] = (lval >> 56) & 0xff;
886 s[offset+1] = (lval >> 48) & 0xff;
887 s[offset+2] = (lval >> 40) & 0xff;
888 s[offset+3] = (lval >> 32) & 0xff;
889 s[offset+4] = (lval >> 24) & 0xff;
890 s[offset+5] = (lval >> 16) & 0xff;
891 s[offset+6] = (lval >> 8) & 0xff;
892 s[offset+7] = lval & 0xff;
900 Perl_do_chop(pTHX_ register SV *astr, register SV *sv)
905 if (SvTYPE(sv) == SVt_PVAV) {
910 for (i = 0; i <= max; i++) {
911 sv = (SV*)av_fetch(av, i, FALSE);
912 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
917 else if (SvTYPE(sv) == SVt_PVHV) {
920 (void)hv_iterinit(hv);
922 while ((entry = hv_iternext(hv)))
923 do_chop(astr,hv_iterval(hv,entry));
926 else if (SvREADONLY(sv))
927 Perl_croak(aTHX_ PL_no_modify);
929 if (len && !SvPOK(sv))
930 s = SvPV_force(sv, len);
933 char *send = s + len;
936 while (s > start && UTF8_IS_CONTINUATION(*s))
938 if (utf8_to_uvchr((U8*)s, 0)) {
939 sv_setpvn(astr, s, send - s);
941 SvCUR_set(sv, s - start);
947 sv_setpvn(astr, "", 0);
951 sv_setpvn(astr, s, 1);
958 sv_setpvn(astr, "", 0);
963 Perl_do_chomp(pTHX_ register SV *sv)
974 if (SvTYPE(sv) == SVt_PVAV) {
979 for (i = 0; i <= max; i++) {
980 sv = (SV*)av_fetch(av, i, FALSE);
981 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
982 count += do_chomp(sv);
986 else if (SvTYPE(sv) == SVt_PVHV) {
989 (void)hv_iterinit(hv);
991 while ((entry = hv_iternext(hv)))
992 count += do_chomp(hv_iterval(hv,entry));
995 else if (SvREADONLY(sv))
996 Perl_croak(aTHX_ PL_no_modify);
998 if (len && !SvPOKp(sv))
999 s = SvPV_force(sv, len);
1002 if (RsPARA(PL_rs)) {
1006 while (len && s[-1] == '\n') {
1014 char *rsptr = SvPV(PL_rs, rslen);
1021 if (len < rslen - 1)
1025 if (memNE(s, rsptr, rslen))
1040 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
1056 bool left_utf = DO_UTF8(left);
1057 bool right_utf = DO_UTF8(right);
1060 if (left_utf && !right_utf)
1061 sv_utf8_upgrade(right);
1062 else if (!left_utf && right_utf)
1063 sv_utf8_upgrade(left);
1065 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
1066 sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
1067 lsave = lc = SvPV(left, leftlen);
1068 rsave = rc = SvPV(right, rightlen);
1069 len = leftlen < rightlen ? leftlen : rightlen;
1071 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1072 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
1073 Newz(801, dc, needlen + 1, char);
1075 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
1077 dc = SvPV_force(sv, n_a);
1078 if (SvCUR(sv) < len) {
1079 dc = SvGROW(sv, len + 1);
1080 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1082 if (optype != OP_BIT_AND && (left_utf || right_utf))
1083 dc = SvGROW(sv, leftlen + rightlen + 1);
1086 needlen = ((optype == OP_BIT_AND)
1087 ? len : (leftlen > rightlen ? leftlen : rightlen));
1088 Newz(801, dc, needlen + 1, char);
1089 (void)sv_usepvn(sv, dc, needlen);
1090 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
1093 (void)SvPOK_only(sv);
1094 if (left_utf || right_utf) {
1097 STRLEN lulen = leftlen;
1098 STRLEN rulen = rightlen;
1103 while (lulen && rulen) {
1104 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1107 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1111 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1113 if (sv == left || sv == right)
1114 (void)sv_usepvn(sv, dcsave, needlen);
1115 SvCUR_set(sv, dc - dcsave);
1118 while (lulen && rulen) {
1119 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1122 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1126 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1130 while (lulen && rulen) {
1131 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1134 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1138 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1141 if (sv == left || sv == right)
1142 (void)sv_usepvn(sv, dcsave, needlen);
1143 SvCUR_set(sv, dc - dcsave);
1145 sv_catpvn(sv, rc, rulen);
1147 sv_catpvn(sv, lc, lulen);
1157 if (len >= sizeof(long)*4 &&
1158 !((long)dc % sizeof(long)) &&
1159 !((long)lc % sizeof(long)) &&
1160 !((long)rc % sizeof(long))) /* It's almost always aligned... */
1162 I32 remainder = len % (sizeof(long)*4);
1163 len /= (sizeof(long)*4);
1172 *dl++ = *ll++ & *rl++;
1173 *dl++ = *ll++ & *rl++;
1174 *dl++ = *ll++ & *rl++;
1175 *dl++ = *ll++ & *rl++;
1180 *dl++ = *ll++ ^ *rl++;
1181 *dl++ = *ll++ ^ *rl++;
1182 *dl++ = *ll++ ^ *rl++;
1183 *dl++ = *ll++ ^ *rl++;
1188 *dl++ = *ll++ | *rl++;
1189 *dl++ = *ll++ | *rl++;
1190 *dl++ = *ll++ | *rl++;
1191 *dl++ = *ll++ | *rl++;
1206 *dc++ = *lc++ & *rc++;
1210 *dc++ = *lc++ ^ *rc++;
1214 *dc++ = *lc++ | *rc++;
1218 sv_catpvn(sv, rsave + len, rightlen - len);
1219 else if (leftlen > len)
1220 sv_catpvn(sv, lsave + len, leftlen - len);
1238 I32 gimme = GIMME_V;
1239 I32 dokeys = (PL_op->op_type == OP_KEYS);
1240 I32 dovalues = (PL_op->op_type == OP_VALUES);
1241 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
1243 if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV)
1244 dokeys = dovalues = TRUE;
1247 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1248 dTARGET; /* make sure to clear its target here */
1249 if (SvTYPE(TARG) == SVt_PVLV)
1250 LvTARG(TARG) = Nullsv;
1256 keys = realhv ? hv : avhv_keys((AV*)hv);
1257 (void)hv_iterinit(keys); /* always reset iterator regardless */
1259 if (gimme == G_VOID)
1262 if (gimme == G_SCALAR) {
1266 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1267 if (SvTYPE(TARG) < SVt_PVLV) {
1268 sv_upgrade(TARG, SVt_PVLV);
1269 sv_magic(TARG, Nullsv, 'k', Nullch, 0);
1272 if (LvTARG(TARG) != (SV*)keys) {
1274 SvREFCNT_dec(LvTARG(TARG));
1275 LvTARG(TARG) = SvREFCNT_inc(keys);
1281 if (! SvTIED_mg((SV*)keys, 'P'))
1286 while (hv_iternext(keys)) i++;
1292 EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
1294 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
1295 while ((entry = hv_iternext(keys))) {
1298 XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1302 hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
1303 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
1304 (unsigned long)HeHASH(entry),
1306 (unsigned long)(HeHASH(entry) & HvMAX(keys))));