3 * Copyright (c) 1998-2000, 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 * 'What a fix!' said Sam. 'That's the one place in all the lands we've ever
12 * heard of that we don't want to see any closer; and that's the one place
13 * we're trying to get to! And that's just where we can't get, nohow.'
15 * 'Well do I understand your speech,' he answered in the same language;
16 * 'yet few strangers do so. Why then do you not speak in the Common Tongue,
17 * as is the custom in the West, if you wish to be answered?'
19 * ...the travellers perceived that the floor was paved with stones of many
20 * hues; branching runes and strange devices intertwined beneath their feet.
24 #define PERL_IN_UTF8_C
30 Perl_uv_to_utf8(pTHX_ U8 *d, UV uv)
37 *d++ = (( uv >> 6) | 0xc0);
38 *d++ = (( uv & 0x3f) | 0x80);
42 *d++ = (( uv >> 12) | 0xe0);
43 *d++ = (((uv >> 6) & 0x3f) | 0x80);
44 *d++ = (( uv & 0x3f) | 0x80);
48 *d++ = (( uv >> 18) | 0xf0);
49 *d++ = (((uv >> 12) & 0x3f) | 0x80);
50 *d++ = (((uv >> 6) & 0x3f) | 0x80);
51 *d++ = (( uv & 0x3f) | 0x80);
55 *d++ = (( uv >> 24) | 0xf8);
56 *d++ = (((uv >> 18) & 0x3f) | 0x80);
57 *d++ = (((uv >> 12) & 0x3f) | 0x80);
58 *d++ = (((uv >> 6) & 0x3f) | 0x80);
59 *d++ = (( uv & 0x3f) | 0x80);
62 if (uv < 0x80000000) {
63 *d++ = (( uv >> 30) | 0xfc);
64 *d++ = (((uv >> 24) & 0x3f) | 0x80);
65 *d++ = (((uv >> 18) & 0x3f) | 0x80);
66 *d++ = (((uv >> 12) & 0x3f) | 0x80);
67 *d++ = (((uv >> 6) & 0x3f) | 0x80);
68 *d++ = (( uv & 0x3f) | 0x80);
72 if (uv < 0x1000000000LL)
75 *d++ = 0xfe; /* Can't match U+FEFF! */
76 *d++ = (((uv >> 30) & 0x3f) | 0x80);
77 *d++ = (((uv >> 24) & 0x3f) | 0x80);
78 *d++ = (((uv >> 18) & 0x3f) | 0x80);
79 *d++ = (((uv >> 12) & 0x3f) | 0x80);
80 *d++ = (((uv >> 6) & 0x3f) | 0x80);
81 *d++ = (( uv & 0x3f) | 0x80);
86 *d++ = 0xff; /* Can't match U+FFFE! */
87 *d++ = 0x80; /* 6 Reserved bits */
88 *d++ = (((uv >> 60) & 0x0f) | 0x80); /* 2 Reserved bits */
89 *d++ = (((uv >> 54) & 0x3f) | 0x80);
90 *d++ = (((uv >> 48) & 0x3f) | 0x80);
91 *d++ = (((uv >> 42) & 0x3f) | 0x80);
92 *d++ = (((uv >> 36) & 0x3f) | 0x80);
93 *d++ = (((uv >> 30) & 0x3f) | 0x80);
94 *d++ = (((uv >> 24) & 0x3f) | 0x80);
95 *d++ = (((uv >> 18) & 0x3f) | 0x80);
96 *d++ = (((uv >> 12) & 0x3f) | 0x80);
97 *d++ = (((uv >> 6) & 0x3f) | 0x80);
98 *d++ = (( uv & 0x3f) | 0x80);
104 /* Tests if some arbitrary number of bytes begins in a valid UTF-8 character.
105 * The actual number of bytes in the UTF-8 character will be returned if it
106 * is valid, otherwise 0. */
108 Perl_is_utf8_char(pTHX_ U8 *s)
124 if ((*s & 0xc0) != 0x80)
132 =for apidoc Am|is_utf8_string|U8 *s|STRLEN len
134 Returns true if first C<len> bytes of the given string form valid a UTF8
135 string, false otherwise.
141 Perl_is_utf8_string(pTHX_ U8 *s, STRLEN len)
156 =for apidoc Am|U8* s|utf8_to_uv_chk|I32 *retlen|I32 checking
158 Returns the character value of the first character in the string C<s>
159 which is assumed to be in UTF8 encoding; C<retlen> will be set to the
160 length, in bytes, of that character, and the pointer C<s> will be
161 advanced to the end of the character.
163 If C<s> does not point to a well-formed UTF8 character, the behaviour
164 is dependent on the value of C<checking>: if this is true, it is
165 assumed that the caller will raise a warning, and this function will
166 set C<retlen> to C<-1> and return. If C<checking> is not true, an optional UTF8
173 Perl_utf8_to_uv_chk(pTHX_ U8* s, I32* retlen, bool checking)
184 if (checking && retlen) {
189 if (ckWARN_d(WARN_UTF8))
190 Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
196 if (!(uv & 0x20)) { len = 2; uv &= 0x1f; }
197 else if (!(uv & 0x10)) { len = 3; uv &= 0x0f; }
198 else if (!(uv & 0x08)) { len = 4; uv &= 0x07; }
199 else if (!(uv & 0x04)) { len = 5; uv &= 0x03; }
200 else if (!(uv & 0x02)) { len = 6; uv &= 0x01; }
201 else if (!(uv & 0x01)) { len = 7; uv = 0; }
202 else { len = 13; uv = 0; } /* whoa! */
209 if ((*s & 0xc0) != 0x80) {
211 if (checking && retlen) {
216 if (ckWARN_d(WARN_UTF8))
217 Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character");
223 uv = (uv << 6) | (*s++ & 0x3f);
229 =for apidoc Am|U8* s|utf8_to_uv|I32 *retlen
231 Returns the character value of the first character in the string C<s>
232 which is assumed to be in UTF8 encoding; C<retlen> will be set to the
233 length, in bytes, of that character, and the pointer C<s> will be
234 advanced to the end of the character.
236 If C<s> does not point to a well-formed UTF8 character, an optional UTF8
243 Perl_utf8_to_uv(pTHX_ U8* s, I32* retlen)
245 return Perl_utf8_to_uv_chk(aTHX_ s, retlen, 0);
248 /* utf8_distance(a,b) returns the number of UTF8 characters between
249 the pointers a and b */
252 Perl_utf8_distance(pTHX_ U8 *a, U8 *b)
270 /* WARNING: do not use the following unless you *know* off is within bounds */
273 Perl_utf8_hop(pTHX_ U8 *s, I32 off)
283 while ((*s & 0xc0) == 0x80)
292 =for apidoc Am|U8 *|utf8_to_bytes|U8 *s|STRLEN *len
294 Converts a string C<s> of length C<len> from UTF8 into byte encoding.
295 Unlike C<bytes_to_utf8>, this over-writes the original string, and
296 updates len to contain the new length.
297 Returns zero on failure, setting C<len> to -1.
303 Perl_utf8_to_bytes(pTHX_ U8* s, STRLEN *len)
313 /* ensure valid UTF8 and chars < 256 before updating string */
317 ( (s >= send) || ((*s++ & 0xc0) != 0x80) || ((c & 0xfe) != 0xc2))) {
328 *d++ = (U8)utf8_to_uv(s, &ulen);
338 =for apidoc Am|U8 *|bytes_to_utf8|U8 *s|STRLEN *len
340 Converts a string C<s> of length C<len> from ASCII into UTF8 encoding.
341 Returns a pointer to the newly-created string, and sets C<len> to
342 reflect the new length.
348 Perl_bytes_to_utf8(pTHX_ U8* s, STRLEN *len)
356 Newz(801, d, (*len) * 2 + 1, U8);
364 *d++ = (( uv >> 6) | 0xc0);
365 *d++ = (( uv & 0x3f) | 0x80);
374 * Convert native (big-endian) or reversed (little-endian) UTF-16 to UTF-8.
376 * Destination must be pre-extended to 3/2 source. Do not use in-place.
377 * We optimize for native, for obvious reasons. */
380 Perl_utf16_to_utf8(pTHX_ U8* p, U8* d, I32 bytelen, I32 *newlen)
386 Perl_croak(aTHX_ "panic: utf16_to_utf8: odd bytelen");
391 UV uv = (p[0] << 8) + p[1]; /* UTF-16BE */
398 *d++ = (( uv >> 6) | 0xc0);
399 *d++ = (( uv & 0x3f) | 0x80);
402 if (uv >= 0xd800 && uv < 0xdbff) { /* surrogates */
405 if (low < 0xdc00 || low >= 0xdfff)
406 Perl_croak(aTHX_ "Malformed UTF-16 surrogate");
407 uv = ((uv - 0xd800) << 10) + (low - 0xdc00) + 0x10000;
410 *d++ = (( uv >> 12) | 0xe0);
411 *d++ = (((uv >> 6) & 0x3f) | 0x80);
412 *d++ = (( uv & 0x3f) | 0x80);
416 *d++ = (( uv >> 18) | 0xf0);
417 *d++ = (((uv >> 12) & 0x3f) | 0x80);
418 *d++ = (((uv >> 6) & 0x3f) | 0x80);
419 *d++ = (( uv & 0x3f) | 0x80);
423 *newlen = d - dstart;
427 /* Note: this one is slightly destructive of the source. */
430 Perl_utf16_to_utf8_reversed(pTHX_ U8* p, U8* d, I32 bytelen, I32 *newlen)
433 U8* send = s + bytelen;
440 return utf16_to_utf8(p, d, bytelen, newlen);
443 /* for now these are all defined (inefficiently) in terms of the utf8 versions */
446 Perl_is_uni_alnum(pTHX_ U32 c)
448 U8 tmpbuf[UTF8_MAXLEN];
449 uv_to_utf8(tmpbuf, (UV)c);
450 return is_utf8_alnum(tmpbuf);
454 Perl_is_uni_alnumc(pTHX_ U32 c)
456 U8 tmpbuf[UTF8_MAXLEN];
457 uv_to_utf8(tmpbuf, (UV)c);
458 return is_utf8_alnumc(tmpbuf);
462 Perl_is_uni_idfirst(pTHX_ U32 c)
464 U8 tmpbuf[UTF8_MAXLEN];
465 uv_to_utf8(tmpbuf, (UV)c);
466 return is_utf8_idfirst(tmpbuf);
470 Perl_is_uni_alpha(pTHX_ U32 c)
472 U8 tmpbuf[UTF8_MAXLEN];
473 uv_to_utf8(tmpbuf, (UV)c);
474 return is_utf8_alpha(tmpbuf);
478 Perl_is_uni_ascii(pTHX_ U32 c)
480 U8 tmpbuf[UTF8_MAXLEN];
481 uv_to_utf8(tmpbuf, (UV)c);
482 return is_utf8_ascii(tmpbuf);
486 Perl_is_uni_space(pTHX_ U32 c)
488 U8 tmpbuf[UTF8_MAXLEN];
489 uv_to_utf8(tmpbuf, (UV)c);
490 return is_utf8_space(tmpbuf);
494 Perl_is_uni_digit(pTHX_ U32 c)
496 U8 tmpbuf[UTF8_MAXLEN];
497 uv_to_utf8(tmpbuf, (UV)c);
498 return is_utf8_digit(tmpbuf);
502 Perl_is_uni_upper(pTHX_ U32 c)
504 U8 tmpbuf[UTF8_MAXLEN];
505 uv_to_utf8(tmpbuf, (UV)c);
506 return is_utf8_upper(tmpbuf);
510 Perl_is_uni_lower(pTHX_ U32 c)
512 U8 tmpbuf[UTF8_MAXLEN];
513 uv_to_utf8(tmpbuf, (UV)c);
514 return is_utf8_lower(tmpbuf);
518 Perl_is_uni_cntrl(pTHX_ U32 c)
520 U8 tmpbuf[UTF8_MAXLEN];
521 uv_to_utf8(tmpbuf, (UV)c);
522 return is_utf8_cntrl(tmpbuf);
526 Perl_is_uni_graph(pTHX_ U32 c)
528 U8 tmpbuf[UTF8_MAXLEN];
529 uv_to_utf8(tmpbuf, (UV)c);
530 return is_utf8_graph(tmpbuf);
534 Perl_is_uni_print(pTHX_ U32 c)
536 U8 tmpbuf[UTF8_MAXLEN];
537 uv_to_utf8(tmpbuf, (UV)c);
538 return is_utf8_print(tmpbuf);
542 Perl_is_uni_punct(pTHX_ U32 c)
544 U8 tmpbuf[UTF8_MAXLEN];
545 uv_to_utf8(tmpbuf, (UV)c);
546 return is_utf8_punct(tmpbuf);
550 Perl_is_uni_xdigit(pTHX_ U32 c)
552 U8 tmpbuf[UTF8_MAXLEN];
553 uv_to_utf8(tmpbuf, (UV)c);
554 return is_utf8_xdigit(tmpbuf);
558 Perl_to_uni_upper(pTHX_ U32 c)
560 U8 tmpbuf[UTF8_MAXLEN];
561 uv_to_utf8(tmpbuf, (UV)c);
562 return to_utf8_upper(tmpbuf);
566 Perl_to_uni_title(pTHX_ U32 c)
568 U8 tmpbuf[UTF8_MAXLEN];
569 uv_to_utf8(tmpbuf, (UV)c);
570 return to_utf8_title(tmpbuf);
574 Perl_to_uni_lower(pTHX_ U32 c)
576 U8 tmpbuf[UTF8_MAXLEN];
577 uv_to_utf8(tmpbuf, (UV)c);
578 return to_utf8_lower(tmpbuf);
581 /* for now these all assume no locale info available for Unicode > 255 */
584 Perl_is_uni_alnum_lc(pTHX_ U32 c)
586 return is_uni_alnum(c); /* XXX no locale support yet */
590 Perl_is_uni_alnumc_lc(pTHX_ U32 c)
592 return is_uni_alnumc(c); /* XXX no locale support yet */
596 Perl_is_uni_idfirst_lc(pTHX_ U32 c)
598 return is_uni_idfirst(c); /* XXX no locale support yet */
602 Perl_is_uni_alpha_lc(pTHX_ U32 c)
604 return is_uni_alpha(c); /* XXX no locale support yet */
608 Perl_is_uni_ascii_lc(pTHX_ U32 c)
610 return is_uni_ascii(c); /* XXX no locale support yet */
614 Perl_is_uni_space_lc(pTHX_ U32 c)
616 return is_uni_space(c); /* XXX no locale support yet */
620 Perl_is_uni_digit_lc(pTHX_ U32 c)
622 return is_uni_digit(c); /* XXX no locale support yet */
626 Perl_is_uni_upper_lc(pTHX_ U32 c)
628 return is_uni_upper(c); /* XXX no locale support yet */
632 Perl_is_uni_lower_lc(pTHX_ U32 c)
634 return is_uni_lower(c); /* XXX no locale support yet */
638 Perl_is_uni_cntrl_lc(pTHX_ U32 c)
640 return is_uni_cntrl(c); /* XXX no locale support yet */
644 Perl_is_uni_graph_lc(pTHX_ U32 c)
646 return is_uni_graph(c); /* XXX no locale support yet */
650 Perl_is_uni_print_lc(pTHX_ U32 c)
652 return is_uni_print(c); /* XXX no locale support yet */
656 Perl_is_uni_punct_lc(pTHX_ U32 c)
658 return is_uni_punct(c); /* XXX no locale support yet */
662 Perl_is_uni_xdigit_lc(pTHX_ U32 c)
664 return is_uni_xdigit(c); /* XXX no locale support yet */
668 Perl_to_uni_upper_lc(pTHX_ U32 c)
670 return to_uni_upper(c); /* XXX no locale support yet */
674 Perl_to_uni_title_lc(pTHX_ U32 c)
676 return to_uni_title(c); /* XXX no locale support yet */
680 Perl_to_uni_lower_lc(pTHX_ U32 c)
682 return to_uni_lower(c); /* XXX no locale support yet */
686 Perl_is_utf8_alnum(pTHX_ U8 *p)
688 if (!is_utf8_char(p))
691 /* NOTE: "IsWord", not "IsAlnum", since Alnum is a true
692 * descendant of isalnum(3), in other words, it doesn't
693 * contain the '_'. --jhi */
694 PL_utf8_alnum = swash_init("utf8", "IsWord", &PL_sv_undef, 0, 0);
695 return swash_fetch(PL_utf8_alnum, p);
696 /* return *p == '_' || is_utf8_alpha(p) || is_utf8_digit(p); */
697 #ifdef SURPRISINGLY_SLOWER /* probably because alpha is usually true */
699 PL_utf8_alnum = swash_init("utf8", "",
700 sv_2mortal(newSVpv("+utf8::IsAlpha\n+utf8::IsDigit\n005F\n",0)), 0, 0);
701 return swash_fetch(PL_utf8_alnum, p);
706 Perl_is_utf8_alnumc(pTHX_ U8 *p)
708 if (!is_utf8_char(p))
711 PL_utf8_alnum = swash_init("utf8", "IsAlnumC", &PL_sv_undef, 0, 0);
712 return swash_fetch(PL_utf8_alnum, p);
713 /* return is_utf8_alpha(p) || is_utf8_digit(p); */
714 #ifdef SURPRISINGLY_SLOWER /* probably because alpha is usually true */
716 PL_utf8_alnum = swash_init("utf8", "",
717 sv_2mortal(newSVpv("+utf8::IsAlpha\n+utf8::IsDigit\n005F\n",0)), 0, 0);
718 return swash_fetch(PL_utf8_alnum, p);
723 Perl_is_utf8_idfirst(pTHX_ U8 *p)
725 return *p == '_' || is_utf8_alpha(p);
729 Perl_is_utf8_alpha(pTHX_ U8 *p)
731 if (!is_utf8_char(p))
734 PL_utf8_alpha = swash_init("utf8", "IsAlpha", &PL_sv_undef, 0, 0);
735 return swash_fetch(PL_utf8_alpha, p);
739 Perl_is_utf8_ascii(pTHX_ U8 *p)
741 if (!is_utf8_char(p))
744 PL_utf8_ascii = swash_init("utf8", "IsAscii", &PL_sv_undef, 0, 0);
745 return swash_fetch(PL_utf8_ascii, p);
749 Perl_is_utf8_space(pTHX_ U8 *p)
751 if (!is_utf8_char(p))
754 PL_utf8_space = swash_init("utf8", "IsSpace", &PL_sv_undef, 0, 0);
755 return swash_fetch(PL_utf8_space, p);
759 Perl_is_utf8_digit(pTHX_ U8 *p)
761 if (!is_utf8_char(p))
764 PL_utf8_digit = swash_init("utf8", "IsDigit", &PL_sv_undef, 0, 0);
765 return swash_fetch(PL_utf8_digit, p);
769 Perl_is_utf8_upper(pTHX_ U8 *p)
771 if (!is_utf8_char(p))
774 PL_utf8_upper = swash_init("utf8", "IsUpper", &PL_sv_undef, 0, 0);
775 return swash_fetch(PL_utf8_upper, p);
779 Perl_is_utf8_lower(pTHX_ U8 *p)
781 if (!is_utf8_char(p))
784 PL_utf8_lower = swash_init("utf8", "IsLower", &PL_sv_undef, 0, 0);
785 return swash_fetch(PL_utf8_lower, p);
789 Perl_is_utf8_cntrl(pTHX_ U8 *p)
791 if (!is_utf8_char(p))
794 PL_utf8_cntrl = swash_init("utf8", "IsCntrl", &PL_sv_undef, 0, 0);
795 return swash_fetch(PL_utf8_cntrl, p);
799 Perl_is_utf8_graph(pTHX_ U8 *p)
801 if (!is_utf8_char(p))
804 PL_utf8_graph = swash_init("utf8", "IsGraph", &PL_sv_undef, 0, 0);
805 return swash_fetch(PL_utf8_graph, p);
809 Perl_is_utf8_print(pTHX_ U8 *p)
811 if (!is_utf8_char(p))
814 PL_utf8_print = swash_init("utf8", "IsPrint", &PL_sv_undef, 0, 0);
815 return swash_fetch(PL_utf8_print, p);
819 Perl_is_utf8_punct(pTHX_ U8 *p)
821 if (!is_utf8_char(p))
824 PL_utf8_punct = swash_init("utf8", "IsPunct", &PL_sv_undef, 0, 0);
825 return swash_fetch(PL_utf8_punct, p);
829 Perl_is_utf8_xdigit(pTHX_ U8 *p)
831 if (!is_utf8_char(p))
834 PL_utf8_xdigit = swash_init("utf8", "IsXDigit", &PL_sv_undef, 0, 0);
835 return swash_fetch(PL_utf8_xdigit, p);
839 Perl_is_utf8_mark(pTHX_ U8 *p)
841 if (!is_utf8_char(p))
844 PL_utf8_mark = swash_init("utf8", "IsM", &PL_sv_undef, 0, 0);
845 return swash_fetch(PL_utf8_mark, p);
849 Perl_to_utf8_upper(pTHX_ U8 *p)
853 if (!PL_utf8_toupper)
854 PL_utf8_toupper = swash_init("utf8", "ToUpper", &PL_sv_undef, 4, 0);
855 uv = swash_fetch(PL_utf8_toupper, p);
856 return uv ? uv : utf8_to_uv_chk(p,0,0);
860 Perl_to_utf8_title(pTHX_ U8 *p)
864 if (!PL_utf8_totitle)
865 PL_utf8_totitle = swash_init("utf8", "ToTitle", &PL_sv_undef, 4, 0);
866 uv = swash_fetch(PL_utf8_totitle, p);
867 return uv ? uv : utf8_to_uv_chk(p,0,0);
871 Perl_to_utf8_lower(pTHX_ U8 *p)
875 if (!PL_utf8_tolower)
876 PL_utf8_tolower = swash_init("utf8", "ToLower", &PL_sv_undef, 4, 0);
877 uv = swash_fetch(PL_utf8_tolower, p);
878 return uv ? uv : utf8_to_uv_chk(p,0,0);
881 /* a "swash" is a swatch hash */
884 Perl_swash_init(pTHX_ char* pkg, char* name, SV *listsv, I32 minbits, I32 none)
890 if (!gv_stashpv(pkg, 0)) { /* demand load utf8 */
892 Perl_load_module(aTHX_ PERL_LOADMOD_NOIMPORT, newSVpv(pkg,0), Nullsv);
896 PUSHSTACKi(PERLSI_MAGIC);
899 PUSHs(sv_2mortal(newSVpvn(pkg, strlen(pkg))));
900 PUSHs(sv_2mortal(newSVpvn(name, strlen(name))));
902 PUSHs(sv_2mortal(newSViv(minbits)));
903 PUSHs(sv_2mortal(newSViv(none)));
909 if (PL_curcop == &PL_compiling) /* XXX ought to be handled by lex_start */
910 strncpy(tmpbuf, PL_tokenbuf, sizeof tmpbuf);
911 if (call_method("SWASHNEW", G_SCALAR))
912 retval = newSVsv(*PL_stack_sp--);
914 retval = &PL_sv_undef;
917 if (PL_curcop == &PL_compiling) {
918 strncpy(PL_tokenbuf, tmpbuf, sizeof tmpbuf);
919 PL_curcop->op_private = PL_hints;
921 if (!SvROK(retval) || SvTYPE(SvRV(retval)) != SVt_PVHV)
922 Perl_croak(aTHX_ "SWASHNEW didn't return an HV ref");
927 Perl_swash_fetch(pTHX_ SV *sv, U8 *ptr)
929 HV* hv = (HV*)SvRV(sv);
930 U32 klen = UTF8SKIP(ptr) - 1;
931 U32 off = ptr[klen] & 127; /* NB: 64 bit always 0 when len > 1 */
933 STRLEN needents = (klen ? 64 : 128);
939 * This single-entry cache saves about 1/3 of the utf8 overhead in test
940 * suite. (That is, only 7-8% overall over just a hash cache. Still,
941 * it's nothing to sniff at.) Pity we usually come through at least
942 * two function calls to get here...
944 * NB: this code assumes that swatches are never modified, once generated!
947 if (hv == PL_last_swash_hv &&
948 klen == PL_last_swash_klen &&
949 (!klen || memEQ((char *)ptr,(char *)PL_last_swash_key,klen)) )
951 tmps = PL_last_swash_tmps;
952 slen = PL_last_swash_slen;
955 /* Try our second-level swatch cache, kept in a hash. */
956 SV** svp = hv_fetch(hv, (char*)ptr, klen, FALSE);
958 /* If not cached, generate it via utf8::SWASHGET */
959 if (!svp || !SvPOK(*svp) || !(tmps = (U8*)SvPV(*svp, slen))) {
964 PUSHSTACKi(PERLSI_MAGIC);
968 PUSHs(sv_2mortal(newSViv(utf8_to_uv_chk(ptr, 0, 0) & ~(needents - 1))));
969 PUSHs(sv_2mortal(newSViv(needents)));
971 if (call_method("SWASHGET", G_SCALAR))
972 retval = newSVsv(*PL_stack_sp--);
974 retval = &PL_sv_undef;
978 if (PL_curcop == &PL_compiling)
979 PL_curcop->op_private = PL_hints;
981 svp = hv_store(hv, (char*)ptr, klen, retval, 0);
983 if (!svp || !(tmps = (U8*)SvPV(*svp, slen)) || slen < 8)
984 Perl_croak(aTHX_ "SWASHGET didn't return result of proper length");
987 PL_last_swash_hv = hv;
988 PL_last_swash_klen = klen;
989 PL_last_swash_tmps = tmps;
990 PL_last_swash_slen = slen;
992 Copy(ptr, PL_last_swash_key, klen, U8);
995 switch ((slen << 3) / needents) {
997 bit = 1 << (off & 7);
999 return (tmps[off] & bit) != 0;
1004 return (tmps[off] << 8) + tmps[off + 1] ;
1007 return (tmps[off] << 24) + (tmps[off+1] << 16) + (tmps[off+2] << 8) + tmps[off + 3] ;
1009 Perl_croak(aTHX_ "panic: swash_fetch");