3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
4 * 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
12 * 'So that was the job I felt I had to do when I started,' thought Sam.
14 * [p.934 of _The Lord of the Rings_, VI/iii: "Mount Doom"]
17 /* This file contains some common functions needed to carry out certain
18 * ops. For example, both pp_sprintf() and pp_prtf() call the function
19 * do_printf() found in this file.
23 #define PERL_IN_DOOP_C
31 S_do_trans_simple(pTHX_ SV * const sv)
36 U8 *s = (U8*)SvPV_nomg(sv,len);
37 U8 * const send = s+len;
38 const short * const tbl = (short*)cPVOP->op_pv;
40 PERL_ARGS_ASSERT_DO_TRANS_SIMPLE;
43 Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
45 /* First, take care of non-UTF-8 input strings, because they're easy */
48 const I32 ch = tbl[*s];
58 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
62 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
72 /* Need to check this, otherwise 128..255 won't match */
73 const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
74 if (c < 0x100 && (ch = tbl[c]) >= 0) {
76 d = uvchr_to_utf8(d, ch);
79 else { /* No match -> copy */
86 sv_setpvn(sv, (char*)dstart, d - dstart);
91 SvCUR_set(sv, d - dstart);
100 S_do_trans_count(pTHX_ SV * const sv)
104 const U8 *s = (const U8*)SvPV_nomg_const(sv, len);
105 const U8 * const send = s + len;
107 const short * const tbl = (short*)cPVOP->op_pv;
109 PERL_ARGS_ASSERT_DO_TRANS_COUNT;
112 Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
121 const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
124 const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
128 } else if (complement)
138 S_do_trans_complex(pTHX_ SV * const sv)
142 U8 *s = (U8*)SvPV_nomg(sv, len);
143 U8 * const send = s+len;
145 const short * const tbl = (short*)cPVOP->op_pv;
147 PERL_ARGS_ASSERT_DO_TRANS_COMPLEX;
150 Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
154 U8 * const dstart = d;
156 if (PL_op->op_private & OPpTRANS_SQUASH) {
159 const I32 ch = tbl[*s];
163 if (p != d - 1 || *p != *d)
166 else if (ch == -1) /* -1 is unmapped character */
168 else if (ch == -2) /* -2 is delete character */
175 const I32 ch = tbl[*s];
180 else if (ch == -1) /* -1 is unmapped character */
182 else if (ch == -2) /* -2 is delete character */
188 SvCUR_set(sv, d - dstart);
191 const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
192 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
193 const I32 del = PL_op->op_private & OPpTRANS_DELETE;
199 Newx(d, len*2+1, U8);
203 if (complement && !del)
206 if (PL_op->op_private & OPpTRANS_SQUASH) {
210 const UV comp = utf8n_to_uvchr(s, send - s, &len,
222 ch = (rlen == 0) ? (I32)comp :
223 (comp - 0x100 < rlen) ?
224 tbl[comp+1] : tbl[0x100+rlen];
226 d = uvchr_to_utf8(d, ch);
234 else if ((ch = tbl[comp]) >= 0) {
237 d = uvchr_to_utf8(d, ch);
243 else if (ch == -1) { /* -1 is unmapped character */
247 else if (ch == -2) /* -2 is delete character */
256 const UV comp = utf8n_to_uvchr(s, send - s, &len,
267 if (comp - 0x100 < rlen)
268 d = uvchr_to_utf8(d, tbl[comp+1]);
270 d = uvchr_to_utf8(d, tbl[0x100+rlen]);
274 else if ((ch = tbl[comp]) >= 0) {
275 d = uvchr_to_utf8(d, ch);
278 else if (ch == -1) { /* -1 is unmapped character */
282 else if (ch == -2) /* -2 is delete character */
288 sv_setpvn(sv, (char*)dstart, d - dstart);
293 SvCUR_set(sv, d - dstart);
302 S_do_trans_simple_utf8(pTHX_ SV * const sv)
311 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
315 PAD_SVl(cPADOP->op_padix);
317 MUTABLE_SV(cSVOP->op_sv);
319 HV* const hv = MUTABLE_HV(SvRV(rv));
320 SV* const * svp = hv_fetchs(hv, "NONE", FALSE);
321 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
322 const UV extra = none + 1;
326 PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8;
328 s = (U8*)SvPV_nomg(sv, len);
331 const U8 * const e = s + len;
334 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
336 s = bytes_to_utf8(s, &len);
344 svp = hv_fetchs(hv, "FINAL", FALSE);
349 /* d needs to be bigger than s, in case e.g. upgrading is required */
350 Newx(d, len * 3 + UTF8_MAXBYTES, U8);
360 const UV uv = swash_fetch(rv, s, TRUE);
364 d = uvchr_to_utf8(d, uv);
366 else if (uv == none) {
367 const int i = UTF8SKIP(s);
372 else if (uv == extra) {
375 d = uvchr_to_utf8(d, final);
381 const STRLEN clen = d - dstart;
382 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
384 Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
385 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
387 dend = dstart + nlen;
390 if (grows || hibit) {
391 sv_setpvn(sv, (char*)dstart, d - dstart);
398 SvCUR_set(sv, d - dstart);
407 S_do_trans_count_utf8(pTHX_ SV * const sv)
411 const U8 *start = NULL;
417 PAD_SVl(cPADOP->op_padix);
419 MUTABLE_SV(cSVOP->op_sv);
421 HV* const hv = MUTABLE_HV(SvRV(rv));
422 SV* const * const svp = hv_fetchs(hv, "NONE", FALSE);
423 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
424 const UV extra = none + 1;
427 PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8;
429 s = (const U8*)SvPV_nomg_const(sv, len);
432 const U8 * const e = s + len;
435 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
437 start = s = bytes_to_utf8(s, &len);
445 const UV uv = swash_fetch(rv, s, TRUE);
446 if (uv < none || uv == extra)
457 S_do_trans_complex_utf8(pTHX_ SV * const sv)
463 const I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
464 const I32 del = PL_op->op_private & OPpTRANS_DELETE;
465 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
468 PAD_SVl(cPADOP->op_padix);
470 MUTABLE_SV(cSVOP->op_sv);
472 HV * const hv = MUTABLE_HV(SvRV(rv));
473 SV * const *svp = hv_fetchs(hv, "NONE", FALSE);
474 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
475 const UV extra = none + 1;
477 bool havefinal = FALSE;
481 U8 *s = (U8*)SvPV_nomg(sv, len);
483 PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8;
487 const U8 * const e = s + len;
490 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
492 s = bytes_to_utf8(s, &len);
500 svp = hv_fetchs(hv, "FINAL", FALSE);
507 /* d needs to be bigger than s, in case e.g. upgrading is required */
508 Newx(d, len * 3 + UTF8_MAXBYTES, U8);
520 UV uv = swash_fetch(rv, s, TRUE);
523 const STRLEN clen = d - dstart;
524 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
526 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
527 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
529 dend = dstart + nlen;
535 d = uvchr_to_utf8(d, uv);
540 else if (uv == none) { /* "none" is unmapped character */
541 const int i = UTF8SKIP(s);
548 else if (uv == extra && !del) {
553 d = uvchr_to_utf8(d, final);
559 uv = utf8n_to_uvchr(s, send - s, &len, UTF8_ALLOW_DEFAULT);
569 matches++; /* "none+1" is delete character */
575 const UV uv = swash_fetch(rv, s, TRUE);
577 const STRLEN clen = d - dstart;
578 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
580 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
581 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
583 dend = dstart + nlen;
588 d = uvchr_to_utf8(d, uv);
591 else if (uv == none) { /* "none" is unmapped character */
592 const int i = UTF8SKIP(s);
598 else if (uv == extra && !del) {
601 d = uvchr_to_utf8(d, final);
604 matches++; /* "none+1" is delete character */
608 if (grows || hibit) {
609 sv_setpvn(sv, (char*)dstart, d - dstart);
616 SvCUR_set(sv, d - dstart);
625 Perl_do_trans(pTHX_ SV *sv)
629 const I32 hasutf = (PL_op->op_private &
630 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
632 PERL_ARGS_ASSERT_DO_TRANS;
634 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) {
635 Perl_croak_no_modify();
637 (void)SvPV_const(sv, len);
640 if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) {
641 if (!SvPOKp(sv) || SvTHINKFIRST(sv))
642 (void)SvPV_force_nomg(sv, len);
643 (void)SvPOK_only_UTF8(sv);
646 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
648 switch (PL_op->op_private & ~hasutf & (
649 OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|
650 OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
653 return do_trans_simple_utf8(sv);
655 return do_trans_simple(sv);
657 case OPpTRANS_IDENTICAL:
658 case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT:
660 return do_trans_count_utf8(sv);
662 return do_trans_count(sv);
666 return do_trans_complex_utf8(sv);
668 return do_trans_complex(sv);
673 Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp)
676 SV ** const oldmark = mark;
677 I32 items = sp - mark;
681 PERL_ARGS_ASSERT_DO_JOIN;
683 (void) SvPV_const(delim, delimlen); /* stringify and get the delimlen */
684 /* SvCUR assumes it's SvPOK() and woe betide you if it's not. */
687 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
688 SvUPGRADE(sv, SVt_PV);
689 if (SvLEN(sv) < len + items) { /* current length is way too short */
690 while (items-- > 0) {
691 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
693 SvPV_const(*mark, tmplen);
698 SvGROW(sv, len + 1); /* so try to pre-extend */
706 /* sv_setpv retains old UTF8ness [perl #24846] */
709 if (TAINTING_get && SvMAGICAL(sv))
719 for (; items > 0; items--,mark++) {
720 sv_catsv_nomg(sv,delim);
725 for (; items > 0; items--,mark++)
732 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
736 const char * const pat = SvPV_const(*sarg, patlen);
737 bool do_taint = FALSE;
739 PERL_ARGS_ASSERT_DO_SPRINTF;
741 if (SvTAINTED(*sarg))
743 (PL_op && PL_op->op_type < OP_max)
744 ? (PL_op->op_type == OP_PRTF)
746 : PL_op_name[PL_op->op_type]
752 sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, len - 1, &do_taint);
758 /* currently converts input to bytes if possible, but doesn't sweat failure */
760 Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
763 STRLEN srclen, len, uoffset, bitoffs = 0;
764 const unsigned char *s = (const unsigned char *) SvPV_flags_const(sv, srclen,
765 SV_GMAGIC | ((PL_op->op_flags & OPf_MOD || LVRET)
766 ? SV_UNDEF_RETURNS_NULL : 0));
770 s = (const unsigned char *)"";
773 PERL_ARGS_ASSERT_DO_VECGET;
777 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
778 Perl_croak(aTHX_ "Illegal number of bits in vec");
781 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
784 bitoffs = ((offset%8)*size)%8;
785 uoffset = offset/(8/size);
788 uoffset = offset*(size/8);
792 len = uoffset + (bitoffs + size + 7)/8; /* required number of bytes */
798 if (uoffset >= srclen)
801 retnum = (UV) s[uoffset] << 8;
803 else if (size == 32) {
804 if (uoffset >= srclen)
806 else if (uoffset + 1 >= srclen)
808 ((UV) s[uoffset ] << 24);
809 else if (uoffset + 2 >= srclen)
811 ((UV) s[uoffset ] << 24) +
812 ((UV) s[uoffset + 1] << 16);
815 ((UV) s[uoffset ] << 24) +
816 ((UV) s[uoffset + 1] << 16) +
817 ( s[uoffset + 2] << 8);
820 else if (size == 64) {
821 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
822 "Bit vector size > 32 non-portable");
823 if (uoffset >= srclen)
825 else if (uoffset + 1 >= srclen)
827 (UV) s[uoffset ] << 56;
828 else if (uoffset + 2 >= srclen)
830 ((UV) s[uoffset ] << 56) +
831 ((UV) s[uoffset + 1] << 48);
832 else if (uoffset + 3 >= srclen)
834 ((UV) s[uoffset ] << 56) +
835 ((UV) s[uoffset + 1] << 48) +
836 ((UV) s[uoffset + 2] << 40);
837 else if (uoffset + 4 >= srclen)
839 ((UV) s[uoffset ] << 56) +
840 ((UV) s[uoffset + 1] << 48) +
841 ((UV) s[uoffset + 2] << 40) +
842 ((UV) s[uoffset + 3] << 32);
843 else if (uoffset + 5 >= srclen)
845 ((UV) s[uoffset ] << 56) +
846 ((UV) s[uoffset + 1] << 48) +
847 ((UV) s[uoffset + 2] << 40) +
848 ((UV) s[uoffset + 3] << 32) +
849 ( s[uoffset + 4] << 24);
850 else if (uoffset + 6 >= srclen)
852 ((UV) s[uoffset ] << 56) +
853 ((UV) s[uoffset + 1] << 48) +
854 ((UV) s[uoffset + 2] << 40) +
855 ((UV) s[uoffset + 3] << 32) +
856 ((UV) s[uoffset + 4] << 24) +
857 ((UV) s[uoffset + 5] << 16);
860 ((UV) s[uoffset ] << 56) +
861 ((UV) s[uoffset + 1] << 48) +
862 ((UV) s[uoffset + 2] << 40) +
863 ((UV) s[uoffset + 3] << 32) +
864 ((UV) s[uoffset + 4] << 24) +
865 ((UV) s[uoffset + 5] << 16) +
866 ( s[uoffset + 6] << 8);
872 retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1);
878 ((UV) s[uoffset] << 8) +
882 ((UV) s[uoffset ] << 24) +
883 ((UV) s[uoffset + 1] << 16) +
884 ( s[uoffset + 2] << 8) +
887 else if (size == 64) {
888 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
889 "Bit vector size > 32 non-portable");
891 ((UV) s[uoffset ] << 56) +
892 ((UV) s[uoffset + 1] << 48) +
893 ((UV) s[uoffset + 2] << 40) +
894 ((UV) s[uoffset + 3] << 32) +
895 ((UV) s[uoffset + 4] << 24) +
896 ((UV) s[uoffset + 5] << 16) +
897 ( s[uoffset + 6] << 8) +
906 /* currently converts input to bytes if possible but doesn't sweat failures,
907 * although it does ensure that the string it clobbers is not marked as
908 * utf8-valid any more
911 Perl_do_vecset(pTHX_ SV *sv)
914 SSize_t offset, bitoffs = 0;
921 SV * const targ = LvTARG(sv);
923 PERL_ARGS_ASSERT_DO_VECSET;
927 s = (unsigned char*)SvPV_force_flags(targ, targlen,
928 SV_GMAGIC | SV_UNDEF_RETURNS_NULL);
930 /* This is handled by the SvPOK_only below...
931 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
934 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
937 (void)SvPOK_only(targ);
939 offset = LvTARGOFF(sv);
941 Perl_croak(aTHX_ "Negative offset to vec in lvalue context");
942 size = LvTARGLEN(sv);
943 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
944 Perl_croak(aTHX_ "Illegal number of bits in vec");
947 bitoffs = ((offset%8)*size)%8;
953 len = offset + (bitoffs + size + 7)/8; /* required number of bytes */
955 s = (unsigned char*)SvGROW(targ, len + 1);
956 (void)memzero((char *)(s + targlen), len - targlen + 1);
957 SvCUR_set(targ, len);
961 mask = (1 << size) - 1;
963 s[offset] &= ~(mask << bitoffs);
964 s[offset] |= lval << bitoffs;
968 s[offset ] = (U8)( lval & 0xff);
969 else if (size == 16) {
970 s[offset ] = (U8)((lval >> 8) & 0xff);
971 s[offset+1] = (U8)( lval & 0xff);
973 else if (size == 32) {
974 s[offset ] = (U8)((lval >> 24) & 0xff);
975 s[offset+1] = (U8)((lval >> 16) & 0xff);
976 s[offset+2] = (U8)((lval >> 8) & 0xff);
977 s[offset+3] = (U8)( lval & 0xff);
980 else if (size == 64) {
981 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
982 "Bit vector size > 32 non-portable");
983 s[offset ] = (U8)((lval >> 56) & 0xff);
984 s[offset+1] = (U8)((lval >> 48) & 0xff);
985 s[offset+2] = (U8)((lval >> 40) & 0xff);
986 s[offset+3] = (U8)((lval >> 32) & 0xff);
987 s[offset+4] = (U8)((lval >> 24) & 0xff);
988 s[offset+5] = (U8)((lval >> 16) & 0xff);
989 s[offset+6] = (U8)((lval >> 8) & 0xff);
990 s[offset+7] = (U8)( lval & 0xff);
998 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
1019 PERL_ARGS_ASSERT_DO_VOP;
1021 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv)))
1022 sv_setpvs(sv, ""); /* avoid undef warning on |= and ^= */
1024 lsave = lc = SvPV_force_nomg(left, leftlen);
1027 lsave = lc = SvPV_nomg_const(left, leftlen);
1028 SvPV_force_nomg_nolen(sv);
1030 rsave = rc = SvPV_nomg_const(right, rightlen);
1032 /* This need to come after SvPV to ensure that string overloading has
1035 left_utf = DO_UTF8(left);
1036 right_utf = DO_UTF8(right);
1038 if (left_utf && !right_utf) {
1039 /* Avoid triggering overloading again by using temporaries.
1040 Maybe there should be a variant of sv_utf8_upgrade that takes pvn
1042 right = newSVpvn_flags(rsave, rightlen, SVs_TEMP);
1043 sv_utf8_upgrade(right);
1044 rsave = rc = SvPV_nomg_const(right, rightlen);
1047 else if (!left_utf && right_utf) {
1048 left = newSVpvn_flags(lsave, leftlen, SVs_TEMP);
1049 sv_utf8_upgrade(left);
1050 lsave = lc = SvPV_nomg_const(left, leftlen);
1054 len = leftlen < rightlen ? leftlen : rightlen;
1057 (void)SvPOK_only(sv);
1058 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1059 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
1060 Newxz(dc, needlen + 1, char);
1062 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
1063 dc = SvPV_force_nomg_nolen(sv);
1064 if (SvLEN(sv) < len + 1) {
1065 dc = SvGROW(sv, len + 1);
1066 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1068 if (optype != OP_BIT_AND && (left_utf || right_utf))
1069 dc = SvGROW(sv, leftlen + rightlen + 1);
1072 needlen = optype == OP_BIT_AND
1073 ? len : (leftlen > rightlen ? leftlen : rightlen);
1074 Newxz(dc, needlen + 1, char);
1075 sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL);
1076 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
1078 if (left_utf || right_utf) {
1081 char *dcsave = NULL;
1082 STRLEN lulen = leftlen;
1083 STRLEN rulen = rightlen;
1088 while (lulen && rulen) {
1089 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1092 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1096 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1098 if (sv == left || sv == right)
1099 (void)sv_usepvn(sv, dcorig, needlen);
1100 SvCUR_set(sv, dc - dcorig);
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);
1115 while (lulen && rulen) {
1116 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1119 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1123 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1127 dcsave = savepvn(rc, rulen);
1129 dcsave = savepvn(lc, lulen);
1130 if (sv == left || sv == right)
1131 (void)sv_usepvn(sv, dcorig, needlen); /* uses Renew(); defaults to nomg */
1132 SvCUR_set(sv, dc - dcorig);
1134 sv_catpvn_nomg(sv, dcsave, rulen);
1136 sv_catpvn_nomg(sv, dcsave, lulen);
1142 if (sv == left || sv == right)
1144 Perl_croak(aTHX_ "panic: do_vop called for op %u (%s)",
1145 (unsigned)optype, PL_op_name[optype]);
1152 if (len >= sizeof(long)*4 &&
1153 !((unsigned long)dc % sizeof(long)) &&
1154 !((unsigned long)lc % sizeof(long)) &&
1155 !((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */
1157 const STRLEN remainder = len % (sizeof(long)*4);
1158 len /= (sizeof(long)*4);
1167 *dl++ = *ll++ & *rl++;
1168 *dl++ = *ll++ & *rl++;
1169 *dl++ = *ll++ & *rl++;
1170 *dl++ = *ll++ & *rl++;
1175 *dl++ = *ll++ ^ *rl++;
1176 *dl++ = *ll++ ^ *rl++;
1177 *dl++ = *ll++ ^ *rl++;
1178 *dl++ = *ll++ ^ *rl++;
1183 *dl++ = *ll++ | *rl++;
1184 *dl++ = *ll++ | *rl++;
1185 *dl++ = *ll++ | *rl++;
1186 *dl++ = *ll++ | *rl++;
1201 *dc++ = *lc++ & *rc++;
1206 *dc++ = *lc++ ^ *rc++;
1210 *dc++ = *lc++ | *rc++;
1214 sv_catpvn_nomg(sv, rsave + len, rightlen - len);
1215 else if (leftlen > (STRLEN)len)
1216 sv_catpvn_nomg(sv, lsave + len, leftlen - len);
1231 HV * const keys = MUTABLE_HV(POPs);
1233 const I32 gimme = GIMME_V;
1234 const I32 dokv = (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV);
1235 /* op_type is OP_RKEYS/OP_RVALUES if pp_rkeys delegated to here */
1236 const I32 dokeys = dokv || (PL_op->op_type == OP_KEYS || PL_op->op_type == OP_RKEYS);
1237 const I32 dovalues = dokv || (PL_op->op_type == OP_VALUES || PL_op->op_type == OP_RVALUES);
1239 (void)hv_iterinit(keys); /* always reset iterator regardless */
1241 if (gimme == G_VOID)
1244 if (gimme == G_SCALAR) {
1245 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1246 SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */
1247 sv_magic(ret, NULL, PERL_MAGIC_nkeys, NULL, 0);
1249 LvTARG(ret) = SvREFCNT_inc_simple(keys);
1256 if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) {
1257 i = HvUSEDKEYS(keys);
1261 while (hv_iternext(keys)) i++;
1268 EXTEND(SP, HvUSEDKEYS(keys) * (dokeys + dovalues));
1270 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
1271 while ((entry = hv_iternext(keys))) {
1274 SV* const sv = hv_iterkeysv(entry);
1275 XPUSHs(sv); /* won't clobber stack_sp */
1280 tmpstr = hv_iterval(keys,entry);
1281 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
1282 (unsigned long)HeHASH(entry),
1284 (unsigned long)(HeHASH(entry) & HvMAX(keys))));
1295 * c-indentation-style: bsd
1297 * indent-tabs-mode: nil
1300 * ex: set ts=8 sts=4 sw=4 et: