3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
4 * 2000, 2001, 2002, 2004, 2005, 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."
15 /* This file contains some common functions needed to carry out certain
16 * ops. For example both pp_schomp() and pp_chomp() - scalar and array
17 * chomp operations - call the function do_chomp() found in this file.
21 #define PERL_IN_DOOP_C
29 S_do_trans_simple(pTHX_ SV *sv)
36 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
41 tbl = (short*)cPVOP->op_pv;
43 Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
45 s = (U8*)SvPV(sv, len);
48 /* First, take care of non-UTF-8 input strings, because they're easy */
51 if ((ch = tbl[*s]) >= 0) {
62 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
64 New(0, d, len*2+1, U8);
72 /* Need to check this, otherwise 128..255 won't match */
73 c = utf8n_to_uvchr(s, send - s, &ulen, 0);
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);
99 S_do_trans_count(pTHX_ SV *sv)
106 I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
108 tbl = (short*)cPVOP->op_pv;
110 Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
112 s = (U8*)SvPV(sv, len);
124 c = utf8n_to_uvchr(s, send - s, &ulen, 0);
128 } else if (complement)
137 S_do_trans_complex(pTHX_ SV *sv)
145 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
146 I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
147 I32 del = PL_op->op_private & OPpTRANS_DELETE;
148 STRLEN len, rlen = 0;
152 tbl = (short*)cPVOP->op_pv;
154 Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
156 s = (U8*)SvPV(sv, len);
162 if (PL_op->op_private & OPpTRANS_SQUASH) {
165 if ((ch = tbl[*s]) >= 0) {
168 if (p != d - 1 || *p != *d)
171 else if (ch == -1) /* -1 is unmapped character */
173 else if (ch == -2) /* -2 is delete character */
180 if ((ch = tbl[*s]) >= 0) {
184 else if (ch == -1) /* -1 is unmapped character */
186 else if (ch == -2) /* -2 is delete character */
192 SvCUR_set(sv, d - dstart);
196 New(0, d, len*2+1, U8);
200 if (complement && !del)
203 #ifdef MACOS_TRADITIONAL
204 #define comp CoMP /* "comp" is a keyword in some compilers ... */
207 if (PL_op->op_private & OPpTRANS_SQUASH) {
211 UV comp = utf8_to_uvchr(s, &len);
221 ch = (rlen == 0) ? comp :
222 (comp - 0x100 < rlen) ?
223 tbl[comp+1] : tbl[0x100+rlen];
225 d = uvchr_to_utf8(d, ch);
233 else if ((ch = tbl[comp]) >= 0) {
236 d = uvchr_to_utf8(d, ch);
242 else if (ch == -1) { /* -1 is unmapped character */
246 else if (ch == -2) /* -2 is delete character */
255 UV comp = utf8_to_uvchr(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 *sv)
307 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
310 SV* rv = (SV*)cSVOP->op_sv;
311 HV* hv = (HV*)SvRV(rv);
312 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
313 UV none = svp ? SvUV(*svp) : 0x7fffffff;
320 s = (U8*)SvPV(sv, len);
323 U8 *t = s, *e = s + len;
326 if ((hibit = !NATIVE_IS_INVARIANT(ch)))
330 s = bytes_to_utf8(s, &len);
335 svp = hv_fetch(hv, "FINAL", 5, FALSE);
340 /* d needs to be bigger than s, in case e.g. upgrading is required */
341 New(0, d, len * 3 + UTF8_MAXBYTES, U8);
351 if ((uv = swash_fetch(rv, s, TRUE)) < none) {
354 d = uvuni_to_utf8(d, uv);
356 else if (uv == none) {
362 else if (uv == extra) {
366 d = uvuni_to_utf8(d, final);
372 STRLEN clen = d - dstart;
373 STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
375 Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
376 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
378 dend = dstart + nlen;
381 if (grows || hibit) {
382 sv_setpvn(sv, (char*)dstart, d - dstart);
389 SvCUR_set(sv, d - dstart);
398 S_do_trans_count_utf8(pTHX_ SV *sv)
401 U8 *start = 0, *send;
405 SV* rv = (SV*)cSVOP->op_sv;
406 HV* hv = (HV*)SvRV(rv);
407 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
408 UV none = svp ? SvUV(*svp) : 0x7fffffff;
413 s = (U8*)SvPV(sv, len);
415 U8 *t = s, *e = s + len;
418 if ((hibit = !NATIVE_IS_INVARIANT(ch)))
422 start = s = bytes_to_utf8(s, &len);
427 if ((uv = swash_fetch(rv, s, TRUE)) < none || uv == extra)
438 S_do_trans_complex_utf8(pTHX_ SV *sv)
444 I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
445 I32 del = PL_op->op_private & OPpTRANS_DELETE;
446 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
447 SV* rv = (SV*)cSVOP->op_sv;
448 HV* hv = (HV*)SvRV(rv);
449 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
450 UV none = svp ? SvUV(*svp) : 0x7fffffff;
453 bool havefinal = FALSE;
460 s = (U8*)SvPV(sv, len);
463 U8 *t = s, *e = s + len;
466 if ((hibit = !NATIVE_IS_INVARIANT(ch)))
470 s = bytes_to_utf8(s, &len);
475 svp = hv_fetch(hv, "FINAL", 5, FALSE);
482 /* d needs to be bigger than s, in case e.g. upgrading is required */
483 New(0, d, len * 3 + UTF8_MAXBYTES, U8);
495 uv = swash_fetch(rv, s, TRUE);
498 STRLEN clen = d - dstart;
499 STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
501 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
502 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
504 dend = dstart + nlen;
510 d = uvuni_to_utf8(d, uv);
515 else if (uv == none) { /* "none" is unmapped character */
523 else if (uv == extra && !del) {
528 d = uvuni_to_utf8(d, final);
534 uv = utf8_to_uvuni(s, &len);
544 matches++; /* "none+1" is delete character */
550 uv = swash_fetch(rv, s, TRUE);
552 STRLEN clen = d - dstart;
553 STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
555 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
556 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
558 dend = dstart + nlen;
563 d = uvuni_to_utf8(d, uv);
566 else if (uv == none) { /* "none" is unmapped character */
573 else if (uv == extra && !del) {
576 d = uvuni_to_utf8(d, final);
579 matches++; /* "none+1" is delete character */
583 if (grows || hibit) {
584 sv_setpvn(sv, (char*)dstart, d - dstart);
591 SvCUR_set(sv, d - dstart);
600 Perl_do_trans(pTHX_ SV *sv)
603 I32 hasutf = (PL_op->op_private &
604 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
606 if (SvREADONLY(sv)) {
608 sv_force_normal_flags(sv, 0);
609 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
610 Perl_croak(aTHX_ PL_no_modify);
615 if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) {
617 (void)SvPV_force(sv, len);
618 (void)SvPOK_only_UTF8(sv);
621 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
623 switch (PL_op->op_private & ~hasutf & (
624 OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|
625 OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
628 return do_trans_simple_utf8(sv);
630 return do_trans_simple(sv);
632 case OPpTRANS_IDENTICAL:
633 case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT:
635 return do_trans_count_utf8(sv);
637 return do_trans_count(sv);
641 return do_trans_complex_utf8(sv);
643 return do_trans_complex(sv);
648 Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
651 register I32 items = sp - mark;
656 (void) SvPV(del, delimlen); /* stringify and get the delimlen */
657 /* SvCUR assumes it's SvPOK() and woe betide you if it's not. */
660 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
661 (void)SvUPGRADE(sv, SVt_PV);
662 if (SvLEN(sv) < len + items) { /* current length is way too short */
663 while (items-- > 0) {
664 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
670 SvGROW(sv, len + 1); /* so try to pre-extend */
677 sv_setpvn(sv, "", 0);
678 /* sv_setpv retains old UTF8ness [perl #24846] */
681 if (PL_tainting && SvMAGICAL(sv))
691 for (; items > 0; items--,mark++) {
697 for (; items > 0; items--,mark++)
704 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
707 char *pat = SvPV(*sarg, patlen);
708 bool do_taint = FALSE;
713 sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
719 /* currently converts input to bytes if possible, but doesn't sweat failure */
721 Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
724 unsigned char *s = (unsigned char *) SvPV(sv, srclen);
729 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
730 Perl_croak(aTHX_ "Illegal number of bits in vec");
733 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
735 offset *= size; /* turn into bit offset */
736 len = (offset + size + 7) / 8; /* required number of bytes */
741 offset >>= 3; /* turn into byte offset */
743 if ((STRLEN)offset >= srclen)
746 retnum = (UV) s[offset] << 8;
748 else if (size == 32) {
749 if ((STRLEN)offset >= srclen)
751 else if ((STRLEN)(offset + 1) >= srclen)
753 ((UV) s[offset ] << 24);
754 else if ((STRLEN)(offset + 2) >= srclen)
756 ((UV) s[offset ] << 24) +
757 ((UV) s[offset + 1] << 16);
760 ((UV) s[offset ] << 24) +
761 ((UV) s[offset + 1] << 16) +
762 ( s[offset + 2] << 8);
765 else if (size == 64) {
766 if (ckWARN(WARN_PORTABLE))
767 Perl_warner(aTHX_ packWARN(WARN_PORTABLE),
768 "Bit vector size > 32 non-portable");
769 if (offset >= srclen)
771 else if (offset + 1 >= srclen)
773 (UV) s[offset ] << 56;
774 else if (offset + 2 >= srclen)
776 ((UV) s[offset ] << 56) +
777 ((UV) s[offset + 1] << 48);
778 else if (offset + 3 >= srclen)
780 ((UV) s[offset ] << 56) +
781 ((UV) s[offset + 1] << 48) +
782 ((UV) s[offset + 2] << 40);
783 else if (offset + 4 >= srclen)
785 ((UV) s[offset ] << 56) +
786 ((UV) s[offset + 1] << 48) +
787 ((UV) s[offset + 2] << 40) +
788 ((UV) s[offset + 3] << 32);
789 else if (offset + 5 >= srclen)
791 ((UV) s[offset ] << 56) +
792 ((UV) s[offset + 1] << 48) +
793 ((UV) s[offset + 2] << 40) +
794 ((UV) s[offset + 3] << 32) +
795 ( s[offset + 4] << 24);
796 else if (offset + 6 >= srclen)
798 ((UV) s[offset ] << 56) +
799 ((UV) s[offset + 1] << 48) +
800 ((UV) s[offset + 2] << 40) +
801 ((UV) s[offset + 3] << 32) +
802 ((UV) s[offset + 4] << 24) +
803 ((UV) s[offset + 5] << 16);
806 ((UV) s[offset ] << 56) +
807 ((UV) s[offset + 1] << 48) +
808 ((UV) s[offset + 2] << 40) +
809 ((UV) s[offset + 3] << 32) +
810 ((UV) s[offset + 4] << 24) +
811 ((UV) s[offset + 5] << 16) +
812 ( s[offset + 6] << 8);
818 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
820 offset >>= 3; /* turn into byte offset */
825 ((UV) s[offset] << 8) +
829 ((UV) s[offset ] << 24) +
830 ((UV) s[offset + 1] << 16) +
831 ( s[offset + 2] << 8) +
834 else if (size == 64) {
835 if (ckWARN(WARN_PORTABLE))
836 Perl_warner(aTHX_ packWARN(WARN_PORTABLE),
837 "Bit vector size > 32 non-portable");
839 ((UV) s[offset ] << 56) +
840 ((UV) s[offset + 1] << 48) +
841 ((UV) s[offset + 2] << 40) +
842 ((UV) s[offset + 3] << 32) +
843 ((UV) s[offset + 4] << 24) +
844 ((UV) s[offset + 5] << 16) +
845 ( s[offset + 6] << 8) +
854 /* currently converts input to bytes if possible but doesn't sweat failures,
855 * although it does ensure that the string it clobbers is not marked as
856 * utf8-valid any more
859 Perl_do_vecset(pTHX_ SV *sv)
861 SV *targ = LvTARG(sv);
864 register unsigned char *s;
872 s = (unsigned char*)SvPV_force(targ, targlen);
874 /* This is handled by the SvPOK_only below...
875 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
878 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
881 (void)SvPOK_only(targ);
883 offset = LvTARGOFF(sv);
885 Perl_croak(aTHX_ "Negative offset to vec in lvalue context");
886 size = LvTARGLEN(sv);
887 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
888 Perl_croak(aTHX_ "Illegal number of bits in vec");
890 offset *= size; /* turn into bit offset */
891 len = (offset + size + 7) / 8; /* required number of bytes */
893 s = (unsigned char*)SvGROW(targ, len + 1);
894 (void)memzero((char *)(s + targlen), len - targlen + 1);
895 SvCUR_set(targ, len);
899 mask = (1 << size) - 1;
902 offset >>= 3; /* turn into byte offset */
903 s[offset] &= ~(mask << size);
904 s[offset] |= lval << size;
907 offset >>= 3; /* turn into byte offset */
909 s[offset ] = (U8)( lval & 0xff);
910 else if (size == 16) {
911 s[offset ] = (U8)((lval >> 8) & 0xff);
912 s[offset+1] = (U8)( lval & 0xff);
914 else if (size == 32) {
915 s[offset ] = (U8)((lval >> 24) & 0xff);
916 s[offset+1] = (U8)((lval >> 16) & 0xff);
917 s[offset+2] = (U8)((lval >> 8) & 0xff);
918 s[offset+3] = (U8)( lval & 0xff);
921 else if (size == 64) {
922 if (ckWARN(WARN_PORTABLE))
923 Perl_warner(aTHX_ packWARN(WARN_PORTABLE),
924 "Bit vector size > 32 non-portable");
925 s[offset ] = (U8)((lval >> 56) & 0xff);
926 s[offset+1] = (U8)((lval >> 48) & 0xff);
927 s[offset+2] = (U8)((lval >> 40) & 0xff);
928 s[offset+3] = (U8)((lval >> 32) & 0xff);
929 s[offset+4] = (U8)((lval >> 24) & 0xff);
930 s[offset+5] = (U8)((lval >> 16) & 0xff);
931 s[offset+6] = (U8)((lval >> 8) & 0xff);
932 s[offset+7] = (U8)( lval & 0xff);
940 Perl_do_chop(pTHX_ register SV *astr, register SV *sv)
945 if (SvTYPE(sv) == SVt_PVAV) {
950 for (i = 0; i <= max; i++) {
951 sv = (SV*)av_fetch(av, i, FALSE);
952 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
957 else if (SvTYPE(sv) == SVt_PVHV) {
960 (void)hv_iterinit(hv);
962 while ((entry = hv_iternext(hv)))
963 do_chop(astr,hv_iterval(hv,entry));
966 else if (SvREADONLY(sv)) {
968 /* SV is copy-on-write */
969 sv_force_normal_flags(sv, 0);
972 Perl_croak(aTHX_ PL_no_modify);
975 if (len && !SvPOK(sv))
976 s = SvPV_force(sv, len);
979 char *send = s + len;
982 while (s > start && UTF8_IS_CONTINUATION(*s))
984 if (utf8_to_uvchr((U8*)s, 0)) {
985 sv_setpvn(astr, s, send - s);
987 SvCUR_set(sv, s - start);
993 sv_setpvn(astr, "", 0);
997 sv_setpvn(astr, s, 1);
1004 sv_setpvn(astr, "", 0);
1009 Perl_do_chomp(pTHX_ register SV *sv)
1015 char *temp_buffer = NULL;
1016 SV* svrecode = Nullsv;
1020 if (RsRECORD(PL_rs))
1023 if (SvTYPE(sv) == SVt_PVAV) {
1028 for (i = 0; i <= max; i++) {
1029 sv = (SV*)av_fetch(av, i, FALSE);
1030 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
1031 count += do_chomp(sv);
1035 else if (SvTYPE(sv) == SVt_PVHV) {
1038 (void)hv_iterinit(hv);
1040 while ((entry = hv_iternext(hv)))
1041 count += do_chomp(hv_iterval(hv,entry));
1044 else if (SvREADONLY(sv)) {
1046 /* SV is copy-on-write */
1047 sv_force_normal_flags(sv, 0);
1050 Perl_croak(aTHX_ PL_no_modify);
1055 /* XXX, here sv is utf8-ized as a side-effect!
1056 If encoding.pm is used properly, almost string-generating
1057 operations, including literal strings, chr(), input data, etc.
1058 should have been utf8-ized already, right?
1060 sv_recode_to_utf8(sv, PL_encoding);
1067 if (RsPARA(PL_rs)) {
1071 while (len && s[-1] == '\n') {
1078 STRLEN rslen, rs_charlen;
1079 char *rsptr = SvPV(PL_rs, rslen);
1081 rs_charlen = SvUTF8(PL_rs)
1082 ? sv_len_utf8(PL_rs)
1085 if (SvUTF8(PL_rs) != SvUTF8(sv)) {
1086 /* Assumption is that rs is shorter than the scalar. */
1087 if (SvUTF8(PL_rs)) {
1088 /* RS is utf8, scalar is 8 bit. */
1089 bool is_utf8 = TRUE;
1090 temp_buffer = (char*)bytes_from_utf8((U8*)rsptr,
1093 /* Cannot downgrade, therefore cannot possibly match
1095 assert (temp_buffer == rsptr);
1099 rsptr = temp_buffer;
1101 else if (PL_encoding) {
1102 /* RS is 8 bit, encoding.pm is used.
1103 * Do not recode PL_rs as a side-effect. */
1104 svrecode = newSVpvn(rsptr, rslen);
1105 sv_recode_to_utf8(svrecode, PL_encoding);
1106 rsptr = SvPV(svrecode, rslen);
1107 rs_charlen = sv_len_utf8(svrecode);
1110 /* RS is 8 bit, scalar is utf8. */
1111 temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen);
1112 rsptr = temp_buffer;
1121 if (len < rslen - 1)
1125 if (memNE(s, rsptr, rslen))
1127 count += rs_charlen;
1130 s = SvPV_force(sv, n_a);
1139 SvREFCNT_dec(svrecode);
1141 Safefree(temp_buffer);
1146 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
1162 bool left_utf = DO_UTF8(left);
1163 bool right_utf = DO_UTF8(right);
1166 if (left_utf && !right_utf)
1167 sv_utf8_upgrade(right);
1168 else if (!left_utf && right_utf)
1169 sv_utf8_upgrade(left);
1171 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
1172 sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
1173 lsave = lc = SvPV_nomg(left, leftlen);
1174 rsave = rc = SvPV_nomg(right, rightlen);
1175 len = leftlen < rightlen ? leftlen : rightlen;
1177 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1178 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
1179 Newz(801, dc, needlen + 1, char);
1181 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
1183 dc = SvPV_force_nomg(sv, n_a);
1184 if (SvCUR(sv) < (STRLEN)len) {
1185 dc = SvGROW(sv, (STRLEN)(len + 1));
1186 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1188 if (optype != OP_BIT_AND && (left_utf || right_utf))
1189 dc = SvGROW(sv, leftlen + rightlen + 1);
1192 needlen = ((optype == OP_BIT_AND)
1193 ? len : (leftlen > rightlen ? leftlen : rightlen));
1194 Newz(801, dc, needlen + 1, char);
1195 (void)sv_usepvn(sv, dc, needlen);
1196 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
1199 (void)SvPOK_only(sv);
1200 if (left_utf || right_utf) {
1203 STRLEN lulen = leftlen;
1204 STRLEN rulen = rightlen;
1209 while (lulen && rulen) {
1210 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1213 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1217 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1219 if (sv == left || sv == right)
1220 (void)sv_usepvn(sv, dcsave, needlen);
1221 SvCUR_set(sv, dc - dcsave);
1224 while (lulen && rulen) {
1225 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1228 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1232 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1236 while (lulen && rulen) {
1237 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
1240 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
1244 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
1247 if (sv == left || sv == right)
1248 (void)sv_usepvn(sv, dcsave, needlen);
1249 SvCUR_set(sv, dc - dcsave);
1251 sv_catpvn(sv, rc, rulen);
1253 sv_catpvn(sv, lc, lulen);
1263 if (len >= sizeof(long)*4 &&
1264 !((long)dc % sizeof(long)) &&
1265 !((long)lc % sizeof(long)) &&
1266 !((long)rc % sizeof(long))) /* It's almost always aligned... */
1268 I32 remainder = len % (sizeof(long)*4);
1269 len /= (sizeof(long)*4);
1278 *dl++ = *ll++ & *rl++;
1279 *dl++ = *ll++ & *rl++;
1280 *dl++ = *ll++ & *rl++;
1281 *dl++ = *ll++ & *rl++;
1286 *dl++ = *ll++ ^ *rl++;
1287 *dl++ = *ll++ ^ *rl++;
1288 *dl++ = *ll++ ^ *rl++;
1289 *dl++ = *ll++ ^ *rl++;
1294 *dl++ = *ll++ | *rl++;
1295 *dl++ = *ll++ | *rl++;
1296 *dl++ = *ll++ | *rl++;
1297 *dl++ = *ll++ | *rl++;
1312 *dc++ = *lc++ & *rc++;
1316 *dc++ = *lc++ ^ *rc++;
1320 *dc++ = *lc++ | *rc++;
1323 if (rightlen > (STRLEN)len)
1324 sv_catpvn(sv, rsave + len, rightlen - len);
1325 else if (leftlen > (STRLEN)len)
1326 sv_catpvn(sv, lsave + len, leftlen - len);
1344 I32 gimme = GIMME_V;
1345 I32 dokeys = (PL_op->op_type == OP_KEYS);
1346 I32 dovalues = (PL_op->op_type == OP_VALUES);
1348 if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV)
1349 dokeys = dovalues = TRUE;
1352 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1353 dTARGET; /* make sure to clear its target here */
1354 if (SvTYPE(TARG) == SVt_PVLV)
1355 LvTARG(TARG) = Nullsv;
1362 (void)hv_iterinit(keys); /* always reset iterator regardless */
1364 if (gimme == G_VOID)
1367 if (gimme == G_SCALAR) {
1371 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
1372 if (SvTYPE(TARG) < SVt_PVLV) {
1373 sv_upgrade(TARG, SVt_PVLV);
1374 sv_magic(TARG, Nullsv, PERL_MAGIC_nkeys, Nullch, 0);
1377 if (LvTARG(TARG) != (SV*)keys) {
1379 SvREFCNT_dec(LvTARG(TARG));
1380 LvTARG(TARG) = SvREFCNT_inc(keys);
1386 if (! SvTIED_mg((SV*)keys, PERL_MAGIC_tied))
1391 while (hv_iternext(keys)) i++;
1397 EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
1399 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
1400 while ((entry = hv_iternext(keys))) {
1403 SV* sv = hv_iterkeysv(entry);
1404 XPUSHs(sv); /* won't clobber stack_sp */
1408 tmpstr = hv_iterval(hv,entry);
1409 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
1410 (unsigned long)HeHASH(entry),
1412 (unsigned long)(HeHASH(entry) & HvMAX(keys))));
1423 * c-indentation-style: bsd
1425 * indent-tabs-mode: t
1428 * vim: shiftwidth=4: