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_sprintf() found in this file.
23 #define PERL_IN_DOOP_C
31 S_do_trans_simple(pTHX_ SV * const sv)
35 U8 *s = (U8*)SvPV_nomg(sv,len);
36 U8 * const send = s+len;
37 const short * const tbl = (short*)cPVOP->op_pv;
39 PERL_ARGS_ASSERT_DO_TRANS_SIMPLE;
42 Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
44 /* First, take care of non-UTF-8 input strings, because they're easy */
47 const I32 ch = tbl[*s];
57 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
61 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
71 /* Need to check this, otherwise 128..255 won't match */
72 const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
73 if (c < 0x100 && (ch = tbl[c]) >= 0) {
75 d = uvchr_to_utf8(d, ch);
78 else { /* No match -> copy */
85 sv_setpvn(sv, (char*)dstart, d - dstart);
90 SvCUR_set(sv, d - dstart);
99 S_do_trans_count(pTHX_ SV * const sv)
102 const U8 *s = (const U8*)SvPV_nomg_const(sv, len);
103 const U8 * const send = s + len;
105 const short * const tbl = (short*)cPVOP->op_pv;
107 PERL_ARGS_ASSERT_DO_TRANS_COUNT;
110 Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
119 const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
122 const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
126 } else if (complement)
136 S_do_trans_complex(pTHX_ SV * const sv)
139 U8 *s = (U8*)SvPV_nomg(sv, len);
140 U8 * const send = s+len;
142 const short * const tbl = (short*)cPVOP->op_pv;
144 PERL_ARGS_ASSERT_DO_TRANS_COMPLEX;
147 Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
151 U8 * const dstart = d;
153 if (PL_op->op_private & OPpTRANS_SQUASH) {
156 const I32 ch = tbl[*s];
160 if (p != d - 1 || *p != *d)
163 else if (ch == -1) /* -1 is unmapped character */
165 else if (ch == -2) /* -2 is delete character */
172 const I32 ch = tbl[*s];
177 else if (ch == -1) /* -1 is unmapped character */
179 else if (ch == -2) /* -2 is delete character */
185 SvCUR_set(sv, d - dstart);
188 const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
189 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
190 const I32 del = PL_op->op_private & OPpTRANS_DELETE;
196 Newx(d, len*2+1, U8);
200 if (complement && !del)
203 if (PL_op->op_private & OPpTRANS_SQUASH) {
207 const UV comp = utf8n_to_uvchr(s, send - s, &len,
219 ch = (rlen == 0) ? (I32)comp :
220 (comp - 0x100 < rlen) ?
221 tbl[comp+1] : tbl[0x100+rlen];
223 d = uvchr_to_utf8(d, ch);
231 else if ((ch = tbl[comp]) >= 0) {
234 d = uvchr_to_utf8(d, ch);
240 else if (ch == -1) { /* -1 is unmapped character */
244 else if (ch == -2) /* -2 is delete character */
253 const UV comp = utf8n_to_uvchr(s, send - s, &len,
264 if (comp - 0x100 < rlen)
265 d = uvchr_to_utf8(d, tbl[comp+1]);
267 d = uvchr_to_utf8(d, tbl[0x100+rlen]);
271 else if ((ch = tbl[comp]) >= 0) {
272 d = uvchr_to_utf8(d, ch);
275 else if (ch == -1) { /* -1 is unmapped character */
279 else if (ch == -2) /* -2 is delete character */
285 sv_setpvn(sv, (char*)dstart, d - dstart);
290 SvCUR_set(sv, d - dstart);
299 S_do_trans_simple_utf8(pTHX_ SV * const sv)
307 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
311 PAD_SVl(cPADOP->op_padix);
313 MUTABLE_SV(cSVOP->op_sv);
315 HV* const hv = MUTABLE_HV(SvRV(rv));
316 SV* const * svp = hv_fetchs(hv, "NONE", FALSE);
317 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
318 const UV extra = none + 1;
322 PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8;
324 s = (U8*)SvPV_nomg(sv, len);
327 const U8 * const e = s + len;
330 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
332 s = bytes_to_utf8(s, &len);
340 svp = hv_fetchs(hv, "FINAL", FALSE);
345 /* d needs to be bigger than s, in case e.g. upgrading is required */
346 Newx(d, len * 3 + UTF8_MAXBYTES, U8);
356 const UV uv = swash_fetch(rv, s, TRUE);
360 d = uvchr_to_utf8(d, uv);
362 else if (uv == none) {
363 const int i = UTF8SKIP(s);
368 else if (uv == extra) {
371 d = uvchr_to_utf8(d, final);
377 const STRLEN clen = d - dstart;
378 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
380 Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
381 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
383 dend = dstart + nlen;
386 if (grows || hibit) {
387 sv_setpvn(sv, (char*)dstart, d - dstart);
394 SvCUR_set(sv, d - dstart);
403 S_do_trans_count_utf8(pTHX_ SV * const sv)
406 const U8 *start = NULL;
412 PAD_SVl(cPADOP->op_padix);
414 MUTABLE_SV(cSVOP->op_sv);
416 HV* const hv = MUTABLE_HV(SvRV(rv));
417 SV* const * const svp = hv_fetchs(hv, "NONE", FALSE);
418 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
419 const UV extra = none + 1;
422 PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8;
424 s = (const U8*)SvPV_nomg_const(sv, len);
427 const U8 * const e = s + len;
430 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
432 start = s = bytes_to_utf8(s, &len);
440 const UV uv = swash_fetch(rv, s, TRUE);
441 if (uv < none || uv == extra)
452 S_do_trans_complex_utf8(pTHX_ SV * const sv)
457 const I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
458 const I32 del = PL_op->op_private & OPpTRANS_DELETE;
459 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
462 PAD_SVl(cPADOP->op_padix);
464 MUTABLE_SV(cSVOP->op_sv);
466 HV * const hv = MUTABLE_HV(SvRV(rv));
467 SV * const *svp = hv_fetchs(hv, "NONE", FALSE);
468 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
469 const UV extra = none + 1;
471 bool havefinal = FALSE;
475 U8 *s = (U8*)SvPV_nomg(sv, len);
477 PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8;
481 const U8 * const e = s + len;
484 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
486 s = bytes_to_utf8(s, &len);
494 svp = hv_fetchs(hv, "FINAL", FALSE);
501 /* d needs to be bigger than s, in case e.g. upgrading is required */
502 Newx(d, len * 3 + UTF8_MAXBYTES, U8);
514 UV uv = swash_fetch(rv, s, TRUE);
517 const STRLEN clen = d - dstart;
518 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
520 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
521 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
523 dend = dstart + nlen;
529 d = uvchr_to_utf8(d, uv);
534 else if (uv == none) { /* "none" is unmapped character */
535 const int i = UTF8SKIP(s);
542 else if (uv == extra && !del) {
547 d = uvchr_to_utf8(d, final);
553 uv = utf8n_to_uvchr(s, send - s, &len, UTF8_ALLOW_DEFAULT);
563 matches++; /* "none+1" is delete character */
569 const UV uv = swash_fetch(rv, s, TRUE);
571 const STRLEN clen = d - dstart;
572 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
574 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
575 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
577 dend = dstart + nlen;
582 d = uvchr_to_utf8(d, uv);
585 else if (uv == none) { /* "none" is unmapped character */
586 const int i = UTF8SKIP(s);
592 else if (uv == extra && !del) {
595 d = uvchr_to_utf8(d, final);
598 matches++; /* "none+1" is delete character */
602 if (grows || hibit) {
603 sv_setpvn(sv, (char*)dstart, d - dstart);
610 SvCUR_set(sv, d - dstart);
619 Perl_do_trans(pTHX_ SV *sv)
622 const I32 flags = PL_op->op_private;
623 const I32 hasutf = flags & (OPpTRANS_FROM_UTF | OPpTRANS_TO_UTF);
625 PERL_ARGS_ASSERT_DO_TRANS;
627 if (SvREADONLY(sv) && !(flags & OPpTRANS_IDENTICAL)) {
628 Perl_croak_no_modify();
630 (void)SvPV_const(sv, len);
633 if (!(flags & OPpTRANS_IDENTICAL)) {
634 if (!SvPOKp(sv) || SvTHINKFIRST(sv))
635 (void)SvPV_force_nomg(sv, len);
636 (void)SvPOK_only_UTF8(sv);
639 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
641 /* If we use only OPpTRANS_IDENTICAL to bypass the READONLY check,
642 * we must also rely on it to choose the readonly strategy.
644 if (flags & OPpTRANS_IDENTICAL) {
645 return hasutf ? do_trans_count_utf8(sv) : do_trans_count(sv);
646 } else if (flags & (OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
647 return hasutf ? do_trans_complex_utf8(sv) : do_trans_complex(sv);
649 return hasutf ? do_trans_simple_utf8(sv) : do_trans_simple(sv);
654 Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp)
656 SV ** const oldmark = mark;
657 I32 items = sp - mark;
660 const char * const delims = SvPV_const(delim, delimlen);
662 PERL_ARGS_ASSERT_DO_JOIN;
665 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
666 SvUPGRADE(sv, SVt_PV);
667 if (SvLEN(sv) < len + items) { /* current length is way too short */
668 while (items-- > 0) {
669 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
671 SvPV_const(*mark, tmplen);
676 SvGROW(sv, len + 1); /* so try to pre-extend */
684 /* sv_setpv retains old UTF8ness [perl #24846] */
687 if (TAINTING_get && SvMAGICAL(sv))
697 const U32 delimflag = DO_UTF8(delim) ? SV_CATUTF8 : SV_CATBYTES;
698 for (; items > 0; items--,mark++) {
701 sv_catpvn_flags(sv,delims,delimlen,delimflag);
702 s = SvPV_const(*mark,len);
703 sv_catpvn_flags(sv,s,len,
704 DO_UTF8(*mark) ? SV_CATUTF8 : SV_CATBYTES);
708 for (; items > 0; items--,mark++)
711 const char *s = SvPV_const(*mark,len);
712 sv_catpvn_flags(sv,s,len,
713 DO_UTF8(*mark) ? SV_CATUTF8 : SV_CATBYTES);
720 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
723 const char * const pat = SvPV_const(*sarg, patlen);
724 bool do_taint = FALSE;
726 PERL_ARGS_ASSERT_DO_SPRINTF;
728 if (SvTAINTED(*sarg))
730 (PL_op && PL_op->op_type < OP_max)
731 ? (PL_op->op_type == OP_PRTF)
733 : PL_op_name[PL_op->op_type]
739 sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, len - 1, &do_taint);
745 /* currently converts input to bytes if possible, but doesn't sweat failure */
747 Perl_do_vecget(pTHX_ SV *sv, STRLEN offset, int size)
749 STRLEN srclen, len, avail, uoffset, bitoffs = 0;
750 const I32 svpv_flags = ((PL_op->op_flags & OPf_MOD || LVRET)
751 ? SV_UNDEF_RETURNS_NULL : 0);
752 unsigned char *s = (unsigned char *)
753 SvPV_flags(sv, srclen, (svpv_flags|SV_GMAGIC));
757 s = (unsigned char *)"";
760 PERL_ARGS_ASSERT_DO_VECGET;
762 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
763 Perl_croak(aTHX_ "Illegal number of bits in vec");
766 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
767 /* PVX may have changed */
768 s = (unsigned char *) SvPV_flags(sv, srclen, svpv_flags);
772 bitoffs = ((offset%8)*size)%8;
773 uoffset = offset/(8/size);
777 if (offset > Size_t_MAX / n - 1) /* would overflow */
784 if (uoffset >= srclen)
787 len = (bitoffs + size + 7)/8; /* required number of bytes */
788 avail = srclen - uoffset; /* available number of bytes */
790 /* Does the byte range overlap the end of the string? If so,
791 * handle specially. */
798 retnum = (UV) s[uoffset] << 8;
800 else if (size == 32) {
801 assert(avail >= 1 && avail <= 3);
804 ((UV) s[uoffset ] << 24);
807 ((UV) s[uoffset ] << 24) +
808 ((UV) s[uoffset + 1] << 16);
811 ((UV) s[uoffset ] << 24) +
812 ((UV) s[uoffset + 1] << 16) +
813 ( s[uoffset + 2] << 8);
816 else if (size == 64) {
817 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
818 "Bit vector size > 32 non-portable");
819 assert(avail >= 1 && avail <= 7);
822 (UV) s[uoffset ] << 56;
825 ((UV) s[uoffset ] << 56) +
826 ((UV) s[uoffset + 1] << 48);
829 ((UV) s[uoffset ] << 56) +
830 ((UV) s[uoffset + 1] << 48) +
831 ((UV) s[uoffset + 2] << 40);
834 ((UV) s[uoffset ] << 56) +
835 ((UV) s[uoffset + 1] << 48) +
836 ((UV) s[uoffset + 2] << 40) +
837 ((UV) s[uoffset + 3] << 32);
840 ((UV) s[uoffset ] << 56) +
841 ((UV) s[uoffset + 1] << 48) +
842 ((UV) s[uoffset + 2] << 40) +
843 ((UV) s[uoffset + 3] << 32) +
844 ((UV) s[uoffset + 4] << 24);
847 ((UV) s[uoffset ] << 56) +
848 ((UV) s[uoffset + 1] << 48) +
849 ((UV) s[uoffset + 2] << 40) +
850 ((UV) s[uoffset + 3] << 32) +
851 ((UV) s[uoffset + 4] << 24) +
852 ((UV) s[uoffset + 5] << 16);
855 ((UV) s[uoffset ] << 56) +
856 ((UV) s[uoffset + 1] << 48) +
857 ((UV) s[uoffset + 2] << 40) +
858 ((UV) s[uoffset + 3] << 32) +
859 ((UV) s[uoffset + 4] << 24) +
860 ((UV) s[uoffset + 5] << 16) +
861 ((UV) s[uoffset + 6] << 8);
867 retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1);
873 ((UV) s[uoffset] << 8) +
877 ((UV) s[uoffset ] << 24) +
878 ((UV) s[uoffset + 1] << 16) +
879 ( s[uoffset + 2] << 8) +
882 else if (size == 64) {
883 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
884 "Bit vector size > 32 non-portable");
886 ((UV) s[uoffset ] << 56) +
887 ((UV) s[uoffset + 1] << 48) +
888 ((UV) s[uoffset + 2] << 40) +
889 ((UV) s[uoffset + 3] << 32) +
890 ((UV) s[uoffset + 4] << 24) +
891 ((UV) s[uoffset + 5] << 16) +
892 ( s[uoffset + 6] << 8) +
901 /* currently converts input to bytes if possible but doesn't sweat failures,
902 * although it does ensure that the string it clobbers is not marked as
903 * utf8-valid any more
906 Perl_do_vecset(pTHX_ SV *sv)
908 STRLEN offset, bitoffs = 0;
915 SV * const targ = LvTARG(sv);
917 PERL_ARGS_ASSERT_DO_VECSET;
921 s = (unsigned char*)SvPV_force_flags(targ, targlen,
922 SV_GMAGIC | SV_UNDEF_RETURNS_NULL);
924 /* This is handled by the SvPOK_only below...
925 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
928 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
931 (void)SvPOK_only(targ);
933 offset = LvTARGOFF(sv);
934 size = LvTARGLEN(sv);
936 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
937 Perl_croak(aTHX_ "Illegal number of bits in vec");
940 bitoffs = ((offset%8)*size)%8;
945 if (offset > Size_t_MAX / n - 1) /* would overflow */
946 Perl_croak_nocontext("Out of memory!");
950 len = (bitoffs + size + 7)/8; /* required number of bytes */
951 if (targlen < offset || targlen - offset < len) {
952 STRLEN newlen = offset > Size_t_MAX - len - 1 ? /* avoid overflow */
953 Size_t_MAX : offset + len + 1;
954 s = (unsigned char*)SvGROW(targ, newlen);
955 (void)memzero((char *)(s + targlen), newlen - targlen);
956 SvCUR_set(targ, newlen - 1);
960 mask = (1 << size) - 1;
962 s[offset] &= ~(mask << bitoffs);
963 s[offset] |= lval << bitoffs;
967 s[offset ] = (U8)( lval & 0xff);
968 else if (size == 16) {
969 s[offset ] = (U8)((lval >> 8) & 0xff);
970 s[offset+1] = (U8)( lval & 0xff);
972 else if (size == 32) {
973 s[offset ] = (U8)((lval >> 24) & 0xff);
974 s[offset+1] = (U8)((lval >> 16) & 0xff);
975 s[offset+2] = (U8)((lval >> 8) & 0xff);
976 s[offset+3] = (U8)( lval & 0xff);
979 else if (size == 64) {
980 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
981 "Bit vector size > 32 non-portable");
982 s[offset ] = (U8)((lval >> 56) & 0xff);
983 s[offset+1] = (U8)((lval >> 48) & 0xff);
984 s[offset+2] = (U8)((lval >> 40) & 0xff);
985 s[offset+3] = (U8)((lval >> 32) & 0xff);
986 s[offset+4] = (U8)((lval >> 24) & 0xff);
987 s[offset+5] = (U8)((lval >> 16) & 0xff);
988 s[offset+6] = (U8)((lval >> 8) & 0xff);
989 s[offset+7] = (U8)( lval & 0xff);
997 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
1015 bool do_warn_above_ff = ckWARN_d(WARN_DEPRECATED);
1018 PERL_ARGS_ASSERT_DO_VOP;
1020 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv)))
1021 SvPVCLEAR(sv); /* avoid undef warning on |= and ^= */
1023 lsave = lc = SvPV_force_nomg(left, leftlen);
1026 lsave = lc = SvPV_nomg_const(left, leftlen);
1027 SvPV_force_nomg_nolen(sv);
1029 rsave = rc = SvPV_nomg_const(right, rightlen);
1031 /* This needs to come after SvPV to ensure that string overloading has
1034 left_utf = DO_UTF8(left);
1035 right_utf = DO_UTF8(right);
1037 if (left_utf && !right_utf) {
1038 /* Avoid triggering overloading again by using temporaries.
1039 Maybe there should be a variant of sv_utf8_upgrade that takes pvn
1041 right = newSVpvn_flags(rsave, rightlen, SVs_TEMP);
1042 sv_utf8_upgrade(right);
1043 rsave = rc = SvPV_nomg_const(right, rightlen);
1046 else if (!left_utf && right_utf) {
1047 left = newSVpvn_flags(lsave, leftlen, SVs_TEMP);
1048 sv_utf8_upgrade(left);
1049 lsave = lc = SvPV_nomg_const(left, leftlen);
1053 len = leftlen < rightlen ? leftlen : rightlen;
1056 (void)SvPOK_only(sv);
1057 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1058 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
1059 Newxz(dc, needlen + 1, char);
1061 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
1062 dc = SvPV_force_nomg_nolen(sv);
1063 if (SvLEN(sv) < len + 1) {
1064 dc = SvGROW(sv, len + 1);
1065 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1067 if (optype != OP_BIT_AND && (left_utf || right_utf))
1068 dc = SvGROW(sv, leftlen + rightlen + 1);
1071 needlen = optype == OP_BIT_AND
1072 ? len : (leftlen > rightlen ? leftlen : rightlen);
1073 Newxz(dc, needlen + 1, char);
1074 sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL);
1075 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
1077 if (left_utf || right_utf) {
1079 char *dcsave = NULL;
1080 STRLEN lulen = leftlen;
1081 STRLEN rulen = rightlen;
1085 while (lulen && rulen) {
1088 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1091 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1095 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1096 if (do_warn_above_ff && (luc > 0xff || ruc > 0xff)) {
1097 Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
1098 deprecated_above_ff_msg, PL_op_desc[optype]);
1099 /* Warn only once per operation */
1100 do_warn_above_ff = FALSE;
1103 if (sv == left || sv == right)
1104 (void)sv_usepvn(sv, dcorig, needlen);
1105 SvCUR_set(sv, dc - dcorig);
1109 while (lulen && rulen) {
1112 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1115 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1119 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1120 if (do_warn_above_ff && (luc > 0xff || ruc > 0xff)) {
1121 Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
1122 deprecated_above_ff_msg, PL_op_desc[optype]);
1123 do_warn_above_ff = FALSE;
1128 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);
1139 if (do_warn_above_ff && (luc > 0xff || ruc > 0xff)) {
1140 Perl_warner(aTHX_ packWARN(WARN_DEPRECATED),
1141 deprecated_above_ff_msg, PL_op_desc[optype]);
1142 do_warn_above_ff = FALSE;
1147 dcsave = savepvn(rc, rulen);
1149 dcsave = savepvn(lc, lulen);
1150 if (sv == left || sv == right)
1151 (void)sv_usepvn(sv, dcorig, needlen); /* uses Renew(); defaults to nomg */
1152 SvCUR_set(sv, dc - dcorig);
1154 sv_catpvn_nomg(sv, dcsave, rulen);
1156 sv_catpvn_nomg(sv, dcsave, lulen);
1162 if (sv == left || sv == right)
1164 Perl_croak(aTHX_ "panic: do_vop called for op %u (%s)",
1165 (unsigned)optype, PL_op_name[optype]);
1172 if (len >= sizeof(long)*4 &&
1173 !((unsigned long)dc % sizeof(long)) &&
1174 !((unsigned long)lc % sizeof(long)) &&
1175 !((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */
1177 const STRLEN remainder = len % (sizeof(long)*4);
1178 len /= (sizeof(long)*4);
1187 *dl++ = *ll++ & *rl++;
1188 *dl++ = *ll++ & *rl++;
1189 *dl++ = *ll++ & *rl++;
1190 *dl++ = *ll++ & *rl++;
1195 *dl++ = *ll++ ^ *rl++;
1196 *dl++ = *ll++ ^ *rl++;
1197 *dl++ = *ll++ ^ *rl++;
1198 *dl++ = *ll++ ^ *rl++;
1203 *dl++ = *ll++ | *rl++;
1204 *dl++ = *ll++ | *rl++;
1205 *dl++ = *ll++ | *rl++;
1206 *dl++ = *ll++ | *rl++;
1221 *dc++ = *lc++ & *rc++;
1226 *dc++ = *lc++ ^ *rc++;
1230 *dc++ = *lc++ | *rc++;
1233 if (rightlen > len) {
1235 SvCUR(sv) = rightlen;
1237 sv_catpvn_nomg(sv, rsave + len, rightlen - len);
1239 else if (leftlen > len) {
1241 SvCUR(sv) = leftlen;
1243 sv_catpvn_nomg(sv, lsave + len, leftlen - len);
1255 /* used for: pp_keys(), pp_values() */
1261 HV * const keys = MUTABLE_HV(POPs);
1263 SSize_t extend_size;
1264 const U8 gimme = GIMME_V;
1265 const I32 dokv = (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV);
1266 /* op_type is OP_RKEYS/OP_RVALUES if pp_rkeys delegated to here */
1267 const I32 dokeys = dokv || (PL_op->op_type == OP_KEYS)
1268 || ( PL_op->op_type == OP_AVHVSWITCH
1269 && (PL_op->op_private & 3) + OP_EACH == OP_KEYS );
1270 const I32 dovalues = dokv || (PL_op->op_type == OP_VALUES)
1271 || ( PL_op->op_type == OP_AVHVSWITCH
1272 && (PL_op->op_private & 3) + OP_EACH == OP_VALUES );
1274 (void)hv_iterinit(keys); /* always reset iterator regardless */
1276 if (gimme == G_VOID)
1279 if (gimme == G_SCALAR) {
1280 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1281 SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */
1282 sv_magic(ret, NULL, PERL_MAGIC_nkeys, NULL, 0);
1284 LvTARG(ret) = SvREFCNT_inc_simple(keys);
1291 if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) {
1292 i = HvUSEDKEYS(keys);
1296 while (hv_iternext(keys)) i++;
1303 if (UNLIKELY(PL_op->op_private & OPpMAYBE_LVSUB)) {
1304 const I32 flags = is_lvalue_sub();
1305 if (flags && !(flags & OPpENTERSUB_INARGS))
1306 /* diag_listed_as: Can't modify %s in %s */
1307 Perl_croak(aTHX_ "Can't modify keys in list assignment");
1310 /* 2*HvUSEDKEYS() should never be big enough to truncate or wrap */
1311 assert(HvUSEDKEYS(keys) <= (SSize_t_MAX >> 1));
1312 extend_size = (SSize_t)HvUSEDKEYS(keys) * (dokeys + dovalues);
1313 EXTEND(SP, extend_size);
1315 while ((entry = hv_iternext(keys))) {
1317 SV* const sv = hv_iterkeysv(entry);
1321 SV *tmpstr = hv_iterval(keys,entry);
1322 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
1323 (unsigned long)HeHASH(entry),
1325 (unsigned long)(HeHASH(entry) & HvMAX(keys))));
1333 * ex: set ts=8 sts=4 sw=4 et: