3 * Copyright (c) 1991-2000, 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)
24 #define HALF_UTF8_UPGRADE(start,end) \
27 STRLEN LeN = (end) - (start); \
28 NeWsTr = bytes_to_utf8(start, &LeN); \
31 (end) = (start) + LeN; \
35 S_do_trans_simple(pTHX_ SV *sv)
43 I32 sutf = SvUTF8(sv);
48 tbl = (short*)cPVOP->op_pv;
50 Perl_croak(aTHX_ "panic: do_trans");
52 s = (U8*)SvPV(sv, len);
55 /* First, take care of non-UTF8 input strings, because they're easy */
58 if ((ch = tbl[*s]) >= 0) {
69 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
70 Newz(0, d, len*2+1, U8);
77 /* Need to check this, otherwise 128..255 won't match */
78 c = utf8_to_uv(s, &ulen);
79 if (c < 0x100 && (ch = tbl[(short)c]) >= 0) {
87 else { /* No match -> copy */
93 sv_setpvn(sv, (const char*)dstart, d - dstart);
95 SvLEN_set(sv, 2*len+1);
101 S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */
107 I32 hasutf = SvUTF8(sv);
111 tbl = (short*)cPVOP->op_pv;
113 Perl_croak(aTHX_ "panic: do_trans");
115 s = (U8*)SvPV(sv, len);
119 if (hasutf && *s & 0x80)
126 c = utf8_to_uv(s,&ulen);
129 if (c < 0x100 && tbl[c] >= 0)
139 S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */
145 I32 hasutf = SvUTF8(sv);
151 tbl = (short*)cPVOP->op_pv;
153 Perl_croak(aTHX_ "panic: do_trans");
155 s = (U8*)SvPV(sv, len);
159 if (PL_op->op_private & OPpTRANS_SQUASH) {
163 if (hasutf && *s & 0x80)
166 if ((ch = tbl[*s]) >= 0) {
169 if (p == d - 1 && *p == *d)
174 else if (ch == -1) /* -1 is unmapped character */
175 *d++ = *s; /* -2 is delete character */
182 if (hasutf && *s & 0x80)
185 if ((ch = tbl[*s]) >= 0) {
190 else if (ch == -1) /* -1 is unmapped character */
191 *d++ = *s; /* -2 is delete character */
196 matches += send - d; /* account for disappeared chars */
198 SvCUR_set(sv, d - (U8*)SvPVX(sv));
205 S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */
216 SV* rv = (SV*)cSVOP->op_sv;
217 HV* hv = (HV*)SvRV(rv);
218 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
219 UV none = svp ? SvUV(*svp) : 0x7fffffff;
227 s = (U8*)SvPV(sv, len);
231 svp = hv_fetch(hv, "FINAL", 5, FALSE);
235 /* d needs to be bigger than s, in case e.g. upgrading is required */
236 Newz(0, d, len*2+1, U8);
239 if ((uv = swash_fetch(rv, s)) < none) {
242 if ((uv & 0x80) && !isutf++)
243 HALF_UTF8_UPGRADE(dstart,d);
244 d = uv_to_utf8(d, uv);
246 else if (uv == none) {
249 if (i > 1 && !isutf++)
250 HALF_UTF8_UPGRADE(dstart,d);
254 else if (uv == extra) {
259 if (i > 1 && !isutf++)
260 HALF_UTF8_UPGRADE(dstart,d);
261 d = uv_to_utf8(d, final);
267 sv_setpvn(sv, (const char*)dstart, d - dstart);
276 S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */
284 SV* rv = (SV*)cSVOP->op_sv;
285 HV* hv = (HV*)SvRV(rv);
286 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
287 UV none = svp ? SvUV(*svp) : 0x7fffffff;
290 s = (U8*)SvPV(sv, len);
292 s = bytes_to_utf8(s, &len);
296 if ((uv = swash_fetch(rv, s)) < none)
305 S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */
312 I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
313 I32 del = PL_op->op_private & OPpTRANS_DELETE;
314 SV* rv = (SV*)cSVOP->op_sv;
315 HV* hv = (HV*)SvRV(rv);
316 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
317 UV none = svp ? SvUV(*svp) : 0x7fffffff;
323 I32 isutf = SvUTF8(sv);
325 s = (U8*)SvPV(sv, len);
328 svp = hv_fetch(hv, "FINAL", 5, FALSE);
332 Newz(0, d, len*2+1, U8);
339 uv = swash_fetch(rv, s);
346 tmpbuf[0] = (( uv >> 6) | 0xc0);
347 tmpbuf[1] = (( uv & 0x3f) | 0x80);
349 uv = swash_fetch(rv, tmpbuf);
355 if ((uv & 0x80) && !isutf++)
356 HALF_UTF8_UPGRADE(dst,d);
357 d = uv_to_utf8(d, uv);
363 else if (uv == none) { /* "none" is unmapped character */
365 *d++ = (U8)utf8_to_uv(s, &ulen);
370 else if (uv == extra && !del) {
373 d = uv_to_utf8(d, final);
379 matches++; /* "none+1" is delete character */
386 uv = swash_fetch(rv, s);
393 tmpbuf[0] = (( uv >> 6) | 0xc0);
394 tmpbuf[1] = (( uv & 0x3f) | 0x80);
396 uv = swash_fetch(rv, tmpbuf);
400 d = uv_to_utf8(d, uv);
404 else if (uv == none) { /* "none" is unmapped character */
406 *d++ = (U8)utf8_to_uv(s, &ulen);
410 else if (uv == extra && !del) {
412 d = uv_to_utf8(d, final);
416 matches++; /* "none+1" is delete character */
421 sv_usepvn(sv, (char*)dst, d - dst);
424 SvCUR_set(sv, d - (U8*)SvPVX(sv));
432 Perl_do_trans(pTHX_ SV *sv)
436 I32 hasutf = (PL_op->op_private &
437 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
439 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
440 Perl_croak(aTHX_ PL_no_modify);
446 (void)SvPV_force(sv, len);
447 if (!(PL_op->op_private & OPpTRANS_IDENTICAL))
448 (void)SvPOK_only_UTF8(sv);
450 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
452 switch (PL_op->op_private & ~hasutf & 63) {
455 return do_trans_simple_utf8(sv);
457 return do_trans_simple(sv);
459 case OPpTRANS_IDENTICAL:
461 return do_trans_count_utf8(sv);
463 return do_trans_count(sv);
467 return do_trans_complex_utf8(sv);
469 return do_trans_complex(sv);
474 Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
477 register I32 items = sp - mark;
480 register char *delim = SvPV(del, delimlen);
484 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
485 (void)SvUPGRADE(sv, SVt_PV);
486 if (SvLEN(sv) < len + items) { /* current length is way too short */
487 while (items-- > 0) {
488 if (*mark && !SvGMAGICAL(*mark) && SvOK(*mark)) {
494 SvGROW(sv, len + 1); /* so try to pre-extend */
513 for (; items > 0; items--,mark++) {
514 sv_catpvn(sv,delim,len);
519 for (; items > 0; items--,mark++)
526 Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
529 char *pat = SvPV(*sarg, patlen);
530 bool do_taint = FALSE;
532 sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
538 /* XXX SvUTF8 support missing! */
540 Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
543 unsigned char *s = (unsigned char *) SvPV(sv, srclen);
548 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
549 Perl_croak(aTHX_ "Illegal number of bits in vec");
550 offset *= size; /* turn into bit offset */
551 len = (offset + size + 7) / 8; /* required number of bytes */
556 offset >>= 3; /* turn into byte offset */
558 if (offset >= srclen)
561 retnum = (UV) s[offset] << 8;
563 else if (size == 32) {
564 if (offset >= srclen)
566 else if (offset + 1 >= srclen)
568 ((UV) s[offset ] << 24);
569 else if (offset + 2 >= srclen)
571 ((UV) s[offset ] << 24) +
572 ((UV) s[offset + 1] << 16);
575 ((UV) s[offset ] << 24) +
576 ((UV) s[offset + 1] << 16) +
577 ( s[offset + 2] << 8);
580 else if (size == 64) {
582 if (ckWARN(WARN_PORTABLE))
583 Perl_warner(aTHX_ WARN_PORTABLE,
584 "Bit vector size > 32 non-portable");
585 if (offset >= srclen)
587 else if (offset + 1 >= srclen)
589 (UV) s[offset ] << 56;
590 else if (offset + 2 >= srclen)
592 ((UV) s[offset ] << 56) +
593 ((UV) s[offset + 1] << 48);
594 else if (offset + 3 >= srclen)
596 ((UV) s[offset ] << 56) +
597 ((UV) s[offset + 1] << 48) +
598 ((UV) s[offset + 2] << 40);
599 else if (offset + 4 >= srclen)
601 ((UV) s[offset ] << 56) +
602 ((UV) s[offset + 1] << 48) +
603 ((UV) s[offset + 2] << 40) +
604 ((UV) s[offset + 3] << 32);
605 else if (offset + 5 >= srclen)
607 ((UV) s[offset ] << 56) +
608 ((UV) s[offset + 1] << 48) +
609 ((UV) s[offset + 2] << 40) +
610 ((UV) s[offset + 3] << 32) +
611 ( s[offset + 4] << 24);
612 else if (offset + 6 >= srclen)
614 ((UV) s[offset ] << 56) +
615 ((UV) s[offset + 1] << 48) +
616 ((UV) s[offset + 2] << 40) +
617 ((UV) s[offset + 3] << 32) +
618 ((UV) s[offset + 4] << 24) +
619 ((UV) s[offset + 5] << 16);
622 ((UV) s[offset ] << 56) +
623 ((UV) s[offset + 1] << 48) +
624 ((UV) s[offset + 2] << 40) +
625 ((UV) s[offset + 3] << 32) +
626 ((UV) s[offset + 4] << 24) +
627 ((UV) s[offset + 5] << 16) +
628 ( s[offset + 6] << 8);
634 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
636 offset >>= 3; /* turn into byte offset */
641 ((UV) s[offset] << 8) +
645 ((UV) s[offset ] << 24) +
646 ((UV) s[offset + 1] << 16) +
647 ( s[offset + 2] << 8) +
650 else if (size == 64) {
652 if (ckWARN(WARN_PORTABLE))
653 Perl_warner(aTHX_ WARN_PORTABLE,
654 "Bit vector size > 32 non-portable");
656 ((UV) s[offset ] << 56) +
657 ((UV) s[offset + 1] << 48) +
658 ((UV) s[offset + 2] << 40) +
659 ((UV) s[offset + 3] << 32) +
660 ((UV) s[offset + 4] << 24) +
661 ((UV) s[offset + 5] << 16) +
662 ( s[offset + 6] << 8) +
671 /* XXX SvUTF8 support missing! */
673 Perl_do_vecset(pTHX_ SV *sv)
675 SV *targ = LvTARG(sv);
678 register unsigned char *s;
686 s = (unsigned char*)SvPV_force(targ, targlen);
687 (void)SvPOK_only(targ);
689 offset = LvTARGOFF(sv);
690 size = LvTARGLEN(sv);
691 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
692 Perl_croak(aTHX_ "Illegal number of bits in vec");
694 offset *= size; /* turn into bit offset */
695 len = (offset + size + 7) / 8; /* required number of bytes */
697 s = (unsigned char*)SvGROW(targ, len + 1);
698 (void)memzero((char *)(s + targlen), len - targlen + 1);
699 SvCUR_set(targ, len);
703 mask = (1 << size) - 1;
706 offset >>= 3; /* turn into byte offset */
707 s[offset] &= ~(mask << size);
708 s[offset] |= lval << size;
711 offset >>= 3; /* turn into byte offset */
713 s[offset ] = lval & 0xff;
714 else if (size == 16) {
715 s[offset ] = (lval >> 8) & 0xff;
716 s[offset+1] = lval & 0xff;
718 else if (size == 32) {
719 s[offset ] = (lval >> 24) & 0xff;
720 s[offset+1] = (lval >> 16) & 0xff;
721 s[offset+2] = (lval >> 8) & 0xff;
722 s[offset+3] = lval & 0xff;
725 else if (size == 64) {
727 if (ckWARN(WARN_PORTABLE))
728 Perl_warner(aTHX_ WARN_PORTABLE,
729 "Bit vector size > 32 non-portable");
730 s[offset ] = (lval >> 56) & 0xff;
731 s[offset+1] = (lval >> 48) & 0xff;
732 s[offset+2] = (lval >> 40) & 0xff;
733 s[offset+3] = (lval >> 32) & 0xff;
734 s[offset+4] = (lval >> 24) & 0xff;
735 s[offset+5] = (lval >> 16) & 0xff;
736 s[offset+6] = (lval >> 8) & 0xff;
737 s[offset+7] = lval & 0xff;
745 Perl_do_chop(pTHX_ register SV *astr, register SV *sv)
751 if (SvTYPE(sv) == SVt_PVAV) {
756 for (i = 0; i <= max; i++) {
757 sv = (SV*)av_fetch(av, i, FALSE);
758 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
763 else if (SvTYPE(sv) == SVt_PVHV) {
766 (void)hv_iterinit(hv);
768 while ((entry = hv_iternext(hv)))
769 do_chop(astr,hv_iterval(hv,entry));
772 else if (SvREADONLY(sv))
773 Perl_croak(aTHX_ PL_no_modify);
775 if (len && !SvPOK(sv))
776 s = SvPV_force(sv, len);
779 char *send = s + len;
782 while ((*s & 0xc0) == 0x80)
784 if (UTF8SKIP(s) != send - s && ckWARN_d(WARN_UTF8))
785 Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
786 sv_setpvn(astr, s, send - s);
788 SvCUR_set(sv, s - start);
793 sv_setpvn(astr, "", 0);
797 sv_setpvn(astr, s, 1);
804 sv_setpvn(astr, "", 0);
809 Perl_do_chomp(pTHX_ register SV *sv)
821 if (SvTYPE(sv) == SVt_PVAV) {
826 for (i = 0; i <= max; i++) {
827 sv = (SV*)av_fetch(av, i, FALSE);
828 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
829 count += do_chomp(sv);
833 else if (SvTYPE(sv) == SVt_PVHV) {
836 (void)hv_iterinit(hv);
838 while ((entry = hv_iternext(hv)))
839 count += do_chomp(hv_iterval(hv,entry));
842 else if (SvREADONLY(sv))
843 Perl_croak(aTHX_ PL_no_modify);
845 if (len && !SvPOKp(sv))
846 s = SvPV_force(sv, len);
853 while (len && s[-1] == '\n') {
861 char *rsptr = SvPV(PL_rs, rslen);
872 if (memNE(s, rsptr, rslen))
887 Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
889 dTHR; /* just for taint */
904 bool left_utf = DO_UTF8(left);
905 bool right_utf = DO_UTF8(right);
908 if (left_utf && !right_utf)
909 sv_utf8_upgrade(right);
910 if (!left_utf && right_utf)
911 sv_utf8_upgrade(left);
913 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
914 sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
915 lsave = lc = SvPV(left, leftlen);
916 rsave = rc = SvPV(right, rightlen);
917 len = leftlen < rightlen ? leftlen : rightlen;
919 if ((left_utf || right_utf) && (sv == left || sv == right)) {
920 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
921 Newz(801, dc, needlen + 1, char);
923 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
925 dc = SvPV_force(sv, n_a);
926 if (SvCUR(sv) < len) {
927 dc = SvGROW(sv, len + 1);
928 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
930 if (optype != OP_BIT_AND && (left_utf || right_utf))
931 dc = SvGROW(sv, leftlen + rightlen + 1);
934 needlen = ((optype == OP_BIT_AND)
935 ? len : (leftlen > rightlen ? leftlen : rightlen));
936 Newz(801, dc, needlen + 1, char);
937 (void)sv_usepvn(sv, dc, needlen);
938 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
941 (void)SvPOK_only(sv);
942 if (left_utf || right_utf) {
945 STRLEN lulen = leftlen;
946 STRLEN rulen = rightlen;
951 while (lulen && rulen) {
952 luc = utf8_to_uv((U8*)lc, &ulen);
955 ruc = utf8_to_uv((U8*)rc, &ulen);
959 dc = (char*)uv_to_utf8((U8*)dc, duc);
961 if (sv == left || sv == right)
962 (void)sv_usepvn(sv, dcsave, needlen);
963 SvCUR_set(sv, dc - dcsave);
966 while (lulen && rulen) {
967 luc = utf8_to_uv((U8*)lc, &ulen);
970 ruc = utf8_to_uv((U8*)rc, &ulen);
974 dc = (char*)uv_to_utf8((U8*)dc, duc);
978 while (lulen && rulen) {
979 luc = utf8_to_uv((U8*)lc, &ulen);
982 ruc = utf8_to_uv((U8*)rc, &ulen);
986 dc = (char*)uv_to_utf8((U8*)dc, duc);
989 if (sv == left || sv == right)
990 (void)sv_usepvn(sv, dcsave, needlen);
991 SvCUR_set(sv, dc - dcsave);
993 sv_catpvn(sv, rc, rulen);
995 sv_catpvn(sv, lc, lulen);
1005 if (len >= sizeof(long)*4 &&
1006 !((long)dc % sizeof(long)) &&
1007 !((long)lc % sizeof(long)) &&
1008 !((long)rc % sizeof(long))) /* It's almost always aligned... */
1010 I32 remainder = len % (sizeof(long)*4);
1011 len /= (sizeof(long)*4);
1020 *dl++ = *ll++ & *rl++;
1021 *dl++ = *ll++ & *rl++;
1022 *dl++ = *ll++ & *rl++;
1023 *dl++ = *ll++ & *rl++;
1028 *dl++ = *ll++ ^ *rl++;
1029 *dl++ = *ll++ ^ *rl++;
1030 *dl++ = *ll++ ^ *rl++;
1031 *dl++ = *ll++ ^ *rl++;
1036 *dl++ = *ll++ | *rl++;
1037 *dl++ = *ll++ | *rl++;
1038 *dl++ = *ll++ | *rl++;
1039 *dl++ = *ll++ | *rl++;
1054 *dc++ = *lc++ & *rc++;
1058 *dc++ = *lc++ ^ *rc++;
1062 *dc++ = *lc++ | *rc++;
1066 sv_catpvn(sv, rsave + len, rightlen - len);
1067 else if (leftlen > len)
1068 sv_catpvn(sv, lsave + len, leftlen - len);
1086 I32 gimme = GIMME_V;
1087 I32 dokeys = (PL_op->op_type == OP_KEYS);
1088 I32 dovalues = (PL_op->op_type == OP_VALUES);
1089 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
1091 if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV)
1092 dokeys = dovalues = TRUE;
1095 if (PL_op->op_flags & OPf_MOD) { /* lvalue */
1096 dTARGET; /* make sure to clear its target here */
1097 if (SvTYPE(TARG) == SVt_PVLV)
1098 LvTARG(TARG) = Nullsv;
1104 keys = realhv ? hv : avhv_keys((AV*)hv);
1105 (void)hv_iterinit(keys); /* always reset iterator regardless */
1107 if (gimme == G_VOID)
1110 if (gimme == G_SCALAR) {
1114 if (PL_op->op_flags & OPf_MOD) { /* lvalue */
1115 if (SvTYPE(TARG) < SVt_PVLV) {
1116 sv_upgrade(TARG, SVt_PVLV);
1117 sv_magic(TARG, Nullsv, 'k', Nullch, 0);
1120 if (LvTARG(TARG) != (SV*)keys) {
1122 SvREFCNT_dec(LvTARG(TARG));
1123 LvTARG(TARG) = SvREFCNT_inc(keys);
1129 if (! SvTIED_mg((SV*)keys, 'P'))
1134 while (hv_iternext(keys)) i++;
1140 EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
1142 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
1143 while ((entry = hv_iternext(keys))) {
1146 XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1150 hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
1151 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
1152 (unsigned long)HeHASH(entry),
1154 (unsigned long)(HeHASH(entry) & HvMAX(keys))));