3 * Copyright (c) 1991-1997, 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."
17 #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
22 static I32 do_trans_CC_simple _((SV *sv));
23 static I32 do_trans_CC_count _((SV *sv));
24 static I32 do_trans_CC_complex _((SV *sv));
25 static I32 do_trans_UU_simple _((SV *sv));
26 static I32 do_trans_UU_count _((SV *sv));
27 static I32 do_trans_UU_complex _((SV *sv));
28 static I32 do_trans_UC_simple _((SV *sv));
29 static I32 do_trans_CU_simple _((SV *sv));
30 static I32 do_trans_UC_trivial _((SV *sv));
31 static I32 do_trans_CU_trivial _((SV *sv));
35 do_trans_CC_simple(SV *sv)
45 tbl = (short*)cPVOP->op_pv;
47 croak("panic: do_trans");
49 s = (U8*)SvPV(sv, len);
53 if ((ch = tbl[*s]) >= 0) {
65 do_trans_CC_count(SV *sv)
74 tbl = (short*)cPVOP->op_pv;
76 croak("panic: do_trans");
78 s = (U8*)SvPV(sv, len);
91 do_trans_CC_complex(SV *sv)
102 tbl = (short*)cPVOP->op_pv;
104 croak("panic: do_trans");
106 s = (U8*)SvPV(sv, len);
110 if (PL_op->op_private & OPpTRANS_SQUASH) {
114 if ((ch = tbl[*s]) >= 0) {
117 if (p == d - 1 && *p == *d)
122 else if (ch == -1) /* -1 is unmapped character */
123 *d++ = *s; /* -2 is delete character */
129 if ((ch = tbl[*s]) >= 0) {
134 else if (ch == -1) /* -1 is unmapped character */
135 *d++ = *s; /* -2 is delete character */
139 matches += send - d; /* account for disappeared chars */
141 SvCUR_set(sv, d - (U8*)SvPVX(sv));
148 do_trans_UU_simple(SV *sv)
157 SV* rv = (SV*)cSVOP->op_sv;
158 HV* hv = (HV*)SvRV(rv);
159 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
160 UV none = svp ? SvUV(*svp) : 0x7fffffff;
165 s = (U8*)SvPV(sv, len);
168 svp = hv_fetch(hv, "FINAL", 5, FALSE);
174 if ((uv = swash_fetch(rv, s)) < none) {
177 d = uv_to_utf8(d, uv);
179 else if (uv == none) {
181 for (i = UTF8SKIP(s); i; i--)
184 else if (uv == extra) {
187 d = uv_to_utf8(d, final);
193 SvCUR_set(sv, d - (U8*)SvPVX(sv));
200 do_trans_UU_count(SV *sv)
208 SV* rv = (SV*)cSVOP->op_sv;
209 HV* hv = (HV*)SvRV(rv);
210 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
211 UV none = svp ? SvUV(*svp) : 0x7fffffff;
214 s = (U8*)SvPV(sv, len);
218 if ((uv = swash_fetch(rv, s)) < none) {
228 do_trans_UC_simple(SV *sv)
237 SV* rv = (SV*)cSVOP->op_sv;
238 HV* hv = (HV*)SvRV(rv);
239 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
240 UV none = svp ? SvUV(*svp) : 0x7fffffff;
245 s = (U8*)SvPV(sv, len);
248 svp = hv_fetch(hv, "FINAL", 5, FALSE);
254 if ((uv = swash_fetch(rv, s)) < none) {
259 else if (uv == none) {
261 uv = utf8_to_uv(s, &ulen);
265 else if (uv == extra) {
274 SvCUR_set(sv, d - (U8*)SvPVX(sv));
281 do_trans_CU_simple(SV *sv)
291 SV* rv = (SV*)cSVOP->op_sv;
292 HV* hv = (HV*)SvRV(rv);
293 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
294 UV none = svp ? SvUV(*svp) : 0x7fffffff;
301 s = (U8*)SvPV(sv, len);
304 svp = hv_fetch(hv, "BITS", 4, FALSE);
306 bits = (I32)SvIV(*svp);
308 svp = hv_fetch(hv, "FINAL", 5, FALSE);
312 Newz(801, d, len * (bits >> 3) + 1, U8);
320 tmpbuf[0] = (( uv >> 6) | 0xc0);
321 tmpbuf[1] = (( uv & 0x3f) | 0x80);
324 if ((uv = swash_fetch(rv, tmpbuf)) < none) {
326 d = uv_to_utf8(d, uv);
329 d = uv_to_utf8(d, s[-1]);
330 else if (uv == extra) {
332 d = uv_to_utf8(d, final);
336 sv_usepvn_mg(sv, (char*)dst, d - dst);
341 /* utf-8 to latin-1 */
344 do_trans_UC_trivial(SV *sv)
352 s = (U8*)SvPV(sv, len);
361 UV uv = utf8_to_uv(s, &ulen);
367 SvCUR_set(sv, d - (U8*)SvPVX(sv));
373 /* latin-1 to utf-8 */
376 do_trans_CU_trivial(SV *sv)
386 s = (U8*)SvPV(sv, len);
389 Newz(801, d, len * 2 + 1, U8);
399 *d++ = (( uv >> 6) | 0xc0);
400 *d++ = (( uv & 0x3f) | 0x80);
404 sv_usepvn_mg(sv, (char*)dst, d - dst);
410 do_trans_UU_complex(SV *sv)
417 I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
418 I32 from_utf = PL_op->op_private & OPpTRANS_FROM_UTF;
419 I32 to_utf = PL_op->op_private & OPpTRANS_TO_UTF;
420 I32 del = PL_op->op_private & OPpTRANS_DELETE;
421 SV* rv = (SV*)cSVOP->op_sv;
422 HV* hv = (HV*)SvRV(rv);
423 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
424 UV none = svp ? SvUV(*svp) : 0x7fffffff;
431 s = (U8*)SvPV(sv, len);
434 svp = hv_fetch(hv, "FINAL", 5, FALSE);
438 if (PL_op->op_private & OPpTRANS_GROWS) {
441 svp = hv_fetch(hv, "BITS", 4, FALSE);
443 bits = (I32)SvIV(*svp);
445 Newz(801, d, len * (bits >> 3) + 1, U8);
457 uv = swash_fetch(rv, s);
465 tmpbuf[0] = (( uv >> 6) | 0xc0);
466 tmpbuf[1] = (( uv & 0x3f) | 0x80);
468 uv = swash_fetch(rv, tmpbuf);
473 if (uv >= 0x80 && to_utf)
474 d = uv_to_utf8(d, uv);
483 else if (uv == none) { /* "none" is unmapped character */
489 for (i = UTF8SKIP(s); i; --i)
494 *d++ = (U8)utf8_to_uv(s, &ulen);
498 else { /* must be to_utf only */
499 d = uv_to_utf8(d, s[-1]);
504 else if (uv == extra && !del) {
507 if (final >= 0x80 && to_utf)
508 d = uv_to_utf8(d, final);
517 matches++; /* "none+1" is delete character */
525 uv = swash_fetch(rv, s);
533 tmpbuf[0] = (( uv >> 6) | 0xc0);
534 tmpbuf[1] = (( uv & 0x3f) | 0x80);
536 uv = swash_fetch(rv, tmpbuf);
540 if (uv >= 0x80 && to_utf)
541 d = uv_to_utf8(d, uv);
548 else if (uv == none) { /* "none" is unmapped character */
554 for (i = UTF8SKIP(s); i; --i)
559 *d++ = (U8)utf8_to_uv(s, &ulen);
563 else { /* must be to_utf only */
564 d = uv_to_utf8(d, s[-1]);
568 else if (uv == extra && !del) {
570 if (final >= 0x80 && to_utf)
571 d = uv_to_utf8(d, final);
578 matches++; /* "none+1" is delete character */
584 sv_usepvn(sv, (char*)dst, d - dst);
587 SvCUR_set(sv, d - (U8*)SvPVX(sv));
600 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
607 (void)SvPV_force(sv, len);
608 (void)SvPOK_only(sv);
610 DEBUG_t( deb("2.TBL\n"));
612 switch (PL_op->op_private & 63) {
614 return do_trans_CC_simple(sv);
616 case OPpTRANS_FROM_UTF:
617 return do_trans_UC_simple(sv);
619 case OPpTRANS_TO_UTF:
620 return do_trans_CU_simple(sv);
622 case OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF:
623 return do_trans_UU_simple(sv);
625 case OPpTRANS_IDENTICAL:
626 return do_trans_CC_count(sv);
628 case OPpTRANS_FROM_UTF|OPpTRANS_IDENTICAL:
629 return do_trans_UC_trivial(sv);
631 case OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL:
632 return do_trans_CU_trivial(sv);
634 case OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL:
635 return do_trans_UU_count(sv);
638 if (PL_op->op_private & (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF))
639 return do_trans_UU_complex(sv); /* could be UC or CU too */
641 return do_trans_CC_complex(sv);
646 do_join(register SV *sv, SV *del, register SV **mark, register SV **sp)
649 register I32 items = sp - mark;
652 register char *delim = SvPV(del, delimlen);
656 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
657 if (SvTYPE(sv) < SVt_PV)
658 sv_upgrade(sv, SVt_PV);
659 if (SvLEN(sv) < len + items) { /* current length is way too short */
660 while (items-- > 0) {
661 if (*mark && !SvGMAGICAL(*mark) && SvOK(*mark)) {
667 SvGROW(sv, len + 1); /* so try to pre-extend */
678 s = SvPV(*mark, tmplen);
679 sv_setpvn(sv, s, tmplen);
689 for (; items > 0; items--,mark++) {
690 sv_catpvn(sv,delim,len);
695 for (; items > 0; items--,mark++)
702 do_sprintf(SV *sv, I32 len, SV **sarg)
705 char *pat = SvPV(*sarg, patlen);
706 bool do_taint = FALSE;
708 sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
717 SV *targ = LvTARG(sv);
720 register unsigned char *s;
721 register unsigned long lval;
728 s = (unsigned char*)SvPV_force(targ, targlen);
729 lval = U_L(SvNV(sv));
730 offset = LvTARGOFF(sv);
731 size = LvTARGLEN(sv);
733 len = (offset + size + 7) / 8;
735 s = (unsigned char*)SvGROW(targ, len + 1);
736 (void)memzero(s + targlen, len - targlen + 1);
737 SvCUR_set(targ, len);
741 mask = (1 << size) - 1;
745 s[offset] &= ~(mask << size);
746 s[offset] |= lval << size;
751 s[offset] = lval & 255;
752 else if (size == 16) {
753 s[offset] = (lval >> 8) & 255;
754 s[offset+1] = lval & 255;
756 else if (size == 32) {
757 s[offset] = (lval >> 24) & 255;
758 s[offset+1] = (lval >> 16) & 255;
759 s[offset+2] = (lval >> 8) & 255;
760 s[offset+3] = lval & 255;
766 do_chop(register SV *astr, register SV *sv)
772 if (SvTYPE(sv) == SVt_PVAV) {
777 for (i = 0; i <= max; i++) {
778 sv = (SV*)av_fetch(av, i, FALSE);
779 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
784 if (SvTYPE(sv) == SVt_PVHV) {
787 (void)hv_iterinit(hv);
789 while (entry = hv_iternext(hv))
790 do_chop(astr,hv_iterval(hv,entry));
794 if (len && !SvPOK(sv))
795 s = SvPV_force(sv, len);
798 char *send = s + len;
801 while ((*s & 0xc0) == 0x80)
803 if (UTF8SKIP(s) != send - s)
804 warn("Malformed UTF-8 character");
805 sv_setpvn(astr, s, send - s);
807 SvCUR_set(sv, s - start);
811 sv_setpvn(astr, "", 0);
816 sv_setpvn(astr, s, 1);
822 sv_setpvn(astr, "", 0);
827 do_chomp(register SV *sv)
837 if (SvTYPE(sv) == SVt_PVAV) {
842 for (i = 0; i <= max; i++) {
843 sv = (SV*)av_fetch(av, i, FALSE);
844 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
845 count += do_chomp(sv);
849 if (SvTYPE(sv) == SVt_PVHV) {
852 (void)hv_iterinit(hv);
854 while (entry = hv_iternext(hv))
855 count += do_chomp(hv_iterval(hv,entry));
859 if (len && !SvPOKp(sv))
860 s = SvPV_force(sv, len);
867 while (len && s[-1] == '\n') {
875 char *rsptr = SvPV(PL_rs, rslen);
886 if (memNE(s, rsptr, rslen))
901 do_vop(I32 optype, SV *sv, SV *left, SV *right)
903 dTHR; /* just for taint */
919 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
920 sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
921 lsave = lc = SvPV(left, leftlen);
922 rsave = rc = SvPV(right, rightlen);
923 len = leftlen < rightlen ? leftlen : rightlen;
925 if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
926 dc = SvPV_force(sv, PL_na);
927 if (SvCUR(sv) < len) {
928 dc = SvGROW(sv, len + 1);
929 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
933 I32 needlen = ((optype == OP_BIT_AND)
934 ? len : (leftlen > rightlen ? leftlen : rightlen));
935 Newz(801, dc, needlen + 1, char);
936 (void)sv_usepvn(sv, dc, needlen);
937 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
940 (void)SvPOK_only(sv);
942 if (len >= sizeof(long)*4 &&
943 !((long)dc % sizeof(long)) &&
944 !((long)lc % sizeof(long)) &&
945 !((long)rc % sizeof(long))) /* It's almost always aligned... */
947 I32 remainder = len % (sizeof(long)*4);
948 len /= (sizeof(long)*4);
957 *dl++ = *ll++ & *rl++;
958 *dl++ = *ll++ & *rl++;
959 *dl++ = *ll++ & *rl++;
960 *dl++ = *ll++ & *rl++;
965 *dl++ = *ll++ ^ *rl++;
966 *dl++ = *ll++ ^ *rl++;
967 *dl++ = *ll++ ^ *rl++;
968 *dl++ = *ll++ ^ *rl++;
973 *dl++ = *ll++ | *rl++;
974 *dl++ = *ll++ | *rl++;
975 *dl++ = *ll++ | *rl++;
976 *dl++ = *ll++ | *rl++;
991 *dc++ = *lc++ & *rc++;
995 *dc++ = *lc++ ^ *rc++;
999 *dc++ = *lc++ | *rc++;
1003 sv_catpvn(sv, rsave + len, rightlen - len);
1004 else if (leftlen > len)
1005 sv_catpvn(sv, lsave + len, leftlen - len);
1022 I32 gimme = GIMME_V;
1023 I32 dokeys = (PL_op->op_type == OP_KEYS);
1024 I32 dovalues = (PL_op->op_type == OP_VALUES);
1025 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
1027 if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV)
1028 dokeys = dovalues = TRUE;
1031 if (PL_op->op_flags & OPf_MOD) { /* lvalue */
1032 dTARGET; /* make sure to clear its target here */
1033 if (SvTYPE(TARG) == SVt_PVLV)
1034 LvTARG(TARG) = Nullsv;
1040 keys = realhv ? hv : avhv_keys((AV*)hv);
1041 (void)hv_iterinit(keys); /* always reset iterator regardless */
1043 if (gimme == G_VOID)
1046 if (gimme == G_SCALAR) {
1050 if (PL_op->op_flags & OPf_MOD) { /* lvalue */
1051 if (SvTYPE(TARG) < SVt_PVLV) {
1052 sv_upgrade(TARG, SVt_PVLV);
1053 sv_magic(TARG, Nullsv, 'k', Nullch, 0);
1056 if (LvTARG(TARG) != (SV*)keys) {
1058 SvREFCNT_dec(LvTARG(TARG));
1059 LvTARG(TARG) = SvREFCNT_inc(keys);
1065 if (!SvRMAGICAL(keys) || !mg_find((SV*)keys,'P'))
1070 while (hv_iternext(keys)) i++;
1076 EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
1078 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
1079 while (entry = hv_iternext(keys)) {
1082 XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
1086 hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
1087 DEBUG_H(sv_setpvf(tmpstr, "%lu%%%d=%lu",
1088 (unsigned long)HeHASH(entry),
1090 (unsigned long)(HeHASH(entry) & HvMAX(keys))));