__UNDEFINED__ SvUTF8 UTF8f UTF8fARG utf8_to_uvchr_buf sv_len_utf8 sv_len_utf8_nomg
#ifdef SVf_UTF8 __UNDEFINED__ SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8) #endif
#if { VERSION == 5.19.1 } /* 5.19.1 does not have UTF8fARG, only broken UTF8f */ #undef UTF8f #endif
#ifdef SVf_UTF8 __UNDEFINED__ UTF8f SVf __UNDEFINED__ UTF8fARG(u,l,p) newSVpvn_flags((p), (l), ((u) ? SVf_UTF8 : 0) | SVs_TEMP) #endif
#define D_PPP_MIN(a,b) (((a) <= (b)) ? (a) : (b))
__UNDEFINED__ UNICODE_REPLACEMENT 0xFFFD
#ifdef UTF8_MAXLEN __UNDEFINED__ UTF8_MAXBYTES UTF8_MAXLEN #endif
__UNDEF_NOT_PROVIDED__ UTF_START_MARK(len) \ (((len) > 7) ? 0xFF : (0xFF & (0xFE << (7-(len)))))
/* On non-EBCDIC was valid for some releases earlier than this, but easier to * just do one check */ #if { VERSION < 5.018 } # undef UTF8_MAXBYTES_CASE #endif
#if 'A' == 65 # define D_PPP_BYTE_INFO_BITS 6 /* 6 bits meaningful in continuation bytes */ __UNDEFINED__ UTF8_MAXBYTES_CASE 13 #else # define D_PPP_BYTE_INFO_BITS 5 /* 5 bits meaningful in continuation bytes */ __UNDEFINED__ UTF8_MAXBYTES_CASE 15 #endif
__UNDEF_NOT_PROVIDED__ UTF_ACCUMULATION_SHIFT D_PPP_BYTE_INFO_BITS
#ifdef NATIVE_TO_UTF __UNDEF_NOT_PROVIDED__ NATIVE_UTF8_TO_I8(c) NATIVE_TO_UTF(c) #else /* System doesn't support EBCDIC */ __UNDEF_NOT_PROVIDED__ NATIVE_UTF8_TO_I8(c) (c) #endif
#ifdef UTF_TO_NATIVE __UNDEF_NOT_PROVIDED__ I8_TO_NATIVE_UTF8(c) UTF_TO_NATIVE(c) #else /* System doesn't support EBCDIC */ __UNDEF_NOT_PROVIDED__ I8_TO_NATIVE_UTF8(c) (c) #endif
__UNDEF_NOT_PROVIDED__ UTF_START_MASK(len) \ (((len) >= 7) ? 0x00 : (0x1F >> ((len)-2))) __UNDEF_NOT_PROVIDED__ UTF_IS_CONTINUATION_MASK \ ((U8) (0xFF << UTF_ACCUMULATION_SHIFT)) __UNDEF_NOT_PROVIDED__ UTF_CONTINUATION_MARK \ (UTF_IS_CONTINUATION_MASK & 0xB0) __UNDEF_NOT_PROVIDED__ UTF_MIN_START_BYTE \ ((UTF_CONTINUATION_MARK >> UTF_ACCUMULATION_SHIFT) | UTF_START_MARK(2))
__UNDEF_NOT_PROVIDED__ UTF_MIN_ABOVE_LATIN1_BYTE \ ((0x100 >> UTF_ACCUMULATION_SHIFT) | UTF_START_MARK(2))
#if { VERSION < 5.007 } /* Was the complement of what should have been */ # undef UTF8_IS_DOWNGRADEABLE_START #endif __UNDEF_NOT_PROVIDED__ UTF8_IS_DOWNGRADEABLE_START(c) \ inRANGE(NATIVE_UTF8_TO_I8(c), \ UTF_MIN_START_BYTE, UTF_MIN_ABOVE_LATIN1_BYTE - 1) __UNDEF_NOT_PROVIDED__ UTF_CONTINUATION_MASK \ ((U8) ((1U << UTF_ACCUMULATION_SHIFT) - 1))
__UNDEF_NOT_PROVIDED__ UTF8_ACCUMULATE(base, added) \ (((base) << UTF_ACCUMULATION_SHIFT) \ | ((NATIVE_UTF8_TO_I8(added)) \ & UTF_CONTINUATION_MASK))
__UNDEF_NOT_PROVIDED__ UTF8_ALLOW_ANYUV 0 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_EMPTY 0x0001 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_CONTINUATION 0x0002 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_NON_CONTINUATION 0x0004 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_SHORT 0x0008 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_LONG 0x0010 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_OVERFLOW 0x0080 __UNDEF_NOT_PROVIDED__ UTF8_ALLOW_ANY ( UTF8_ALLOW_CONTINUATION \ |UTF8_ALLOW_NON_CONTINUATION \ |UTF8_ALLOW_SHORT \ |UTF8_ALLOW_LONG \ |UTF8_ALLOW_OVERFLOW)
#if defined UTF8SKIP
/* Don't use official versions because they use MIN, which may not be available */ #undef UTF8_SAFE_SKIP #undef UTF8_CHK_SKIP
__UNDEFINED__ UTF8_SAFE_SKIP(s, e) ( \ ((((e) - (s)) <= 0) \ ? 0 \ : D_PPP_MIN(((e) - (s)), UTF8SKIP(s))))
__UNDEFINED__ UTF8_CHK_SKIP(s) \ (s[0] == '\0' ? 1 : ((U8) D_PPP_MIN(my_strnlen((char *) (s), UTF8SKIP(s)), \ UTF8SKIP(s)))) /* UTF8_CHK_SKIP depends on my_strnlen */ __UNDEFINED__ UTF8_SKIP(s) UTF8SKIP(s) #endif
#if 'A' == 65 __UNDEFINED__ UTF8_IS_INVARIANT(c) isASCII(c) #else __UNDEFINED__ UTF8_IS_INVARIANT(c) (isASCII(c) || isCNTRL_L1(c)) #endif
__UNDEFINED__ UVCHR_IS_INVARIANT(c) UTF8_IS_INVARIANT(c)
#ifdef UVCHR_IS_INVARIANT # if 'A' != 65 || UVSIZE < 8 /* 32 bit platform, which includes UTF-EBCDIC on the releases this is * backported to */ # define D_PPP_UVCHR_SKIP_UPPER(c) 7 # else # define D_PPP_UVCHR_SKIP_UPPER(c) \ (((WIDEST_UTYPE) (c)) < \ (((WIDEST_UTYPE) 1) << (6 * D_PPP_BYTE_INFO_BITS)) ? 7 : 13) # endif
__UNDEFINED__ UVCHR_SKIP(c) \ UVCHR_IS_INVARIANT(c) ? 1 : \ (WIDEST_UTYPE) (c) < (32 * (1U << ( D_PPP_BYTE_INFO_BITS))) ? 2 : \ (WIDEST_UTYPE) (c) < (16 * (1U << (2 * D_PPP_BYTE_INFO_BITS))) ? 3 : \ (WIDEST_UTYPE) (c) < ( 8 * (1U << (3 * D_PPP_BYTE_INFO_BITS))) ? 4 : \ (WIDEST_UTYPE) (c) < ( 4 * (1U << (4 * D_PPP_BYTE_INFO_BITS))) ? 5 : \ (WIDEST_UTYPE) (c) < ( 2 * (1U << (5 * D_PPP_BYTE_INFO_BITS))) ? 6 : \ D_PPP_UVCHR_SKIP_UPPER(c) #endif
#ifdef is_ascii_string __UNDEFINED__ is_invariant_string(s,l) is_ascii_string(s,l) __UNDEFINED__ is_utf8_invariant_string(s,l) is_ascii_string(s,l)
/* Hint: is_ascii_string, is_invariant_string is_utf8_invariant_string() does the same thing and is preferred because its name is more accurate as to what it does */ #endif
#ifdef ibcmp_utf8 __UNDEFINED__ foldEQ_utf8(s1,pe1,l1,u1,s2,pe2,l2,u2) \ cBOOL(! ibcmp_utf8(s1,pe1,l1,u1,s2,pe2,l2,u2)) #endif
#if defined(is_utf8_string) && defined(UTF8SKIP) __UNDEFINED__ isUTF8_CHAR(s, e) ( \ (e) <= (s) || ! is_utf8_string(s, UTF8_SAFE_SKIP(s, e)) \ ? 0 \ : UTF8SKIP(s)) #endif
#if 'A' == 65 __UNDEFINED__ BOM_UTF8 "\xEF\xBB\xBF" __UNDEFINED__ REPLACEMENT_CHARACTER_UTF8 "\xEF\xBF\xBD" #elif '^' == 95 __UNDEFINED__ BOM_UTF8 "\xDD\x73\x66\x73" __UNDEFINED__ REPLACEMENT_CHARACTER_UTF8 "\xDD\x73\x73\x71" #elif '^' == 176 __UNDEFINED__ BOM_UTF8 "\xDD\x72\x65\x72" __UNDEFINED__ REPLACEMENT_CHARACTER_UTF8 "\xDD\x72\x72\x70" #else # error Unknown character set #endif
#if { VERSION < 5.35.10 } /* Versions prior to 5.31.4 accepted things that are now considered * malformations, and didn't return -1 on error with warnings enabled. * Versions before 5.35.10 dereferenced empty input without checking */ # undef utf8_to_uvchr_buf #endif
/* This implementation brings modern, generally more restricted standards to * utf8_to_uvchr_buf. Some of these are security related, and clearly must * be done. But its arguable that the others need not, and hence should not. * The reason they're here is that a module that intends to play with the * latest perls should be able to work the same in all releases. An example is * that perl no longer accepts any UV for a code point, but limits them to * IV_MAX or below. This is for future internal use of the larger code points. * If it turns out that some of these changes are breaking code that isn't * intended to work with modern perls, the tighter restrictions could be * relaxed. khw thinks this is unlikely, but has been wrong in the past. */
/* 5.6.0 is the first release with UTF-8, and we don't implement this function * there due to its likely lack of still being in use, and the underlying * implementation is very different from later ones, without the later * safeguards, so would require extra work to deal with */ #if { VERSION >= 5.6.1 } && ! defined(utf8_to_uvchr_buf) /* Choose which underlying implementation to use. At least one must be * present or the perl is too early to handle this function */ # if defined(utf8n_to_uvchr) || defined(utf8_to_uvchr) || defined(utf8_to_uv) # if defined(utf8n_to_uvchr) /* This is the preferred implementation */ # define D_PPP_utf8_to_uvchr_buf_callee utf8n_to_uvchr # elif /* Must be at least 5.6.1 from #if above; \ If have both regular and _simple, regular has all args */ \ defined(utf8_to_uv) && defined(utf8_to_uv_simple) # define D_PPP_utf8_to_uvchr_buf_callee utf8_to_uv # elif defined(utf8_to_uvchr) /* The below won't work well on error input */ # define D_PPP_utf8_to_uvchr_buf_callee(s, curlen, retlen, flags) \ utf8_to_uvchr((U8 *)(s), (retlen)) # else # define D_PPP_utf8_to_uvchr_buf_callee(s, curlen, retlen, flags) \ utf8_to_uv((U8 *)(s), (retlen)) # endif # endif
# if { NEED utf8_to_uvchr_buf }
UV utf8_to_uvchr_buf(pTHX_ const U8 *s, const U8 *send, STRLEN *retlen) { # if { VERSION >= 5.31.4 } /* But from above, must be < 5.35.10 */ # if { VERSION != 5.35.9 }
/* Versions less than 5.35.9 could dereference s on zero length, so
* pass it something where no harm comes from that. */
if (send <= s) s = send = (U8 *) "?";
return Perl_utf8_to_uvchr_buf_helper(aTHX_ s, send, retlen);# else /* Below is 5.35.9, which also works on non-empty input, but for empty input, can wrongly dereference, and additionally is also just plain broken */ if (send > s) return Perl_utf8_to_uvchr_buf_helper(aTHX_ s, send, retlen); if (! ckWARN_d(WARN_UTF8)) { if (retlen) *retlen = 0; return UNICODE_REPLACEMENT; } else { s = send = (U8 *) "?";
/* Call just for its warning */
(void) Perl__utf8n_to_uvchr_msgs_helper(s, 0, NULL, 0, NULL, NULL);
if (retlen) *retlen = (STRLEN) -1;
return 0;
}# endif # else
UV ret;
STRLEN curlen;
bool overflows = 0;
const U8 *cur_s = s;
const bool do_warnings = ckWARN_d(WARN_UTF8);
# if { VERSION < 5.26.0 } && ! defined(EBCDIC)
STRLEN overflow_length = 0;
# endif
if (send > s) {
curlen = send - s;
}
else {
assert(0); /* Modern perls die under this circumstance */
curlen = 0;
if (! do_warnings) { /* Handle empty here if no warnings needed */
if (retlen) *retlen = 0;
return UNICODE_REPLACEMENT;
}
}# if { VERSION < 5.26.0 } && ! defined(EBCDIC)
/* Perl did not properly detect overflow for much of its history on
* non-EBCDIC platforms, often returning an overlong value which may or may
* not have been tolerated in the call. Also, earlier versions, when they
* did detect overflow, may have disallowed it completely. Modern ones can
* replace it with the REPLACEMENT CHARACTER, depending on calling
* parameters. Therefore detect it ourselves in releases it was
* problematic in. */
if (curlen > 0 && UNLIKELY(*s >= 0xFE)) {
/* First, on a 32-bit machine the first byte being at least \xFE
* automatically is overflow, as it indicates something requiring more
* than 31 bits */
if (sizeof(ret) < 8) {
overflows = 1;
overflow_length = (*s == 0xFE) ? 7 : 13;
}
else {
const U8 highest[] = /* 2*63-1 */
"\xFF\x80\x87\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF\xBF";
const U8 *cur_h = highest;
for (cur_s = s; cur_s < send; cur_s++, cur_h++) {
if (UNLIKELY(*cur_s == *cur_h)) {
continue;
}
/* If this byte is larger than the corresponding highest UTF-8
* byte, the sequence overflows; otherwise the byte is less
* than (as we handled the equality case above), and so the
* sequence doesn't overflow */
overflows = *cur_s > *cur_h;
break;
}
/* Here, either we set the bool and broke out of the loop, or got
* to the end and all bytes are the same which indicates it doesn't
* overflow. If it did overflow, it would be this number of bytes
* */
overflow_length = 13;
}
}
if (UNLIKELY(overflows)) {
ret = 0;
if (! do_warnings && retlen) {
*retlen = overflow_length;
}
}
else# endif /* < 5.26 */
/* Here, we are either in a release that properly detects overflow, or
* we have checked for overflow and the next statement is executing as
* part of the above conditional where we know we don't have overflow.
*
* The modern versions allow anything that evaluates to a legal UV, but
* not overlongs nor an empty input */
ret = D_PPP_utf8_to_uvchr_buf_callee(
(U8 *) /* Early perls: no const */
s, curlen, retlen, (UTF8_ALLOW_ANYUV
& ~(UTF8_ALLOW_LONG|UTF8_ALLOW_EMPTY)));# if { VERSION >= 5.26.0 } && { VERSION < 5.28.0 }
/* But actually, more modern versions restrict the UV to being no more than
* what an IV can hold, so it could still have gotten it wrong about
* overflowing. */
if (UNLIKELY(ret > IV_MAX)) {
overflows = 1;
}# endif
if (UNLIKELY(overflows)) {
if (! do_warnings) {
if (retlen) {
*retlen = D_PPP_MIN(*retlen, UTF8SKIP(s));
*retlen = D_PPP_MIN(*retlen, curlen);
}
return UNICODE_REPLACEMENT;
}
else {
/* We use the error message in use from 5.8-5.26 */
Perl_warner(aTHX_ packWARN(WARN_UTF8),
"Malformed UTF-8 character (overflow at 0x%" UVxf
", byte 0x%02x, after start byte 0x%02x)",
ret, *cur_s, *s);
if (retlen) {
*retlen = (STRLEN) -1;
}
return 0;
}
}
/* Here, did not overflow, but if it failed for some other reason, and
* warnings are off, to emulate the behavior of the real utf8_to_uvchr(),
* try again, allowing anything. (Note a return of 0 is ok if the input
* was '\0') */
if (UNLIKELY(ret == 0 && (curlen == 0 || *s != '\0'))) {
/* If curlen is 0, we already handled the case where warnings are
* disabled, so this 'if' will be true, and so later on, we know that
* 's' is dereferencible */
if (do_warnings) {
if (retlen) {
*retlen = (STRLEN) -1;
}
}
else {
ret = D_PPP_utf8_to_uvchr_buf_callee(
(U8 *) /* Early perls: no const */
s, curlen, retlen, UTF8_ALLOW_ANY);
/* Override with the REPLACEMENT character, as that is what the
* modern version of this function returns */
ret = UNICODE_REPLACEMENT;# if { VERSION < 5.16.0 }
/* Versions earlier than this don't necessarily return the proper
* length. It should not extend past the end of string, nor past
* what the first byte indicates the length is, nor past the
* continuation characters */
if (retlen && (IV) *retlen >= 0) {
unsigned int i = 1;
*retlen = D_PPP_MIN(*retlen, curlen);
*retlen = D_PPP_MIN(*retlen, UTF8SKIP(s));
do {
# ifdef UTF8_IS_CONTINUATION
if (! UTF8_IS_CONTINUATION(s[i]))
# else /* Versions without the above don't support EBCDIC anyway */
if (s[i] < 0x80 || s[i] > 0xBF)
# endif
{
*retlen = i;
break;
}
} while (++i < *retlen);
}# endif /* end of < 5.16.0 */
}
}
return ret;# endif /* end of < 5.31.4 */
}
# endif #endif
#if defined(UTF8SKIP) && defined(utf8_to_uvchr_buf) #undef utf8_to_uvchr /* Always redefine this unsafe function so that it refuses to read past a NUL, making it much less likely to read off the end of the buffer. A NUL indicates the start of the next character anyway. If the input isn't NUL-terminated, the function remains unsafe, as it always has been. */
__UNDEFINED__ utf8_to_uvchr(s, lp) \ ((*(s) == '\0') \ ? utf8_to_uvchr_buf(s,((s)+1), lp) /* Handle single NUL specially */ \ : utf8_to_uvchr_buf(s, (s) + UTF8_CHK_SKIP(s), (lp)))
#endif
/* Hint: utf8_to_uvchr Use utf8_to_uvchr_buf() instead. But ONLY if you KNOW the upper bound of the input string (not resorting to using UTF8SKIP, etc., to infer it). The backported utf8_to_uvchr() will do a better job to prevent most cases of trying to read beyond the end of the buffer */
/* Replace utf8_to_uvchr with utf8_to_uvchr_buf */
#ifdef sv_len_utf8 # if { VERSION >= 5.17.5 } # ifndef sv_len_utf8_nomg # if defined(PERL_USE_GCC_BRACE_GROUPS) # define sv_len_utf8_nomg(sv) \ ({ \ SV *sv_ = (sv); \ sv_len_utf8(!SvGMAGICAL(sv_) \ ? sv_ \ : sv_mortalcopy_flags(sv_, SV_NOSTEAL)); \ }) # else PERL_STATIC_INLINE STRLEN D_PPP_sv_len_utf8_nomg(SV * sv) { dTHX; if (SvGMAGICAL(sv)) return sv_len_utf8(sv_mortalcopy_flags(sv, SV_NOSTEAL)); else return sv_len_utf8(sv); } # define sv_len_utf8_nomg(sv) D_PPP_sv_len_utf8_nomg(sv) # endif # endif # else /* < 5.17.5 */ /* Older Perl versions have broken sv_len_utf8() when passed sv does not * have SVf_UTF8 flag set */ /* Also note that SvGETMAGIC() may change presence of SVf_UTF8 flag */ # undef sv_len_utf8 # if defined(PERL_USE_GCC_BRACE_GROUPS) # define sv_len_utf8_nomg(sv) \ ({ \ SV *sv2 = (sv); \ STRLEN len; \ if (SvUTF8(sv2)) { \ if (SvGMAGICAL(sv2)) \ len = Perl_sv_len_utf8(aTHX_ \ sv_mortalcopy_flags(sv2, \ SV_NOSTEAL));\ else \ len = Perl_sv_len_utf8(aTHX_ sv2); \ } \ else SvPV_nomg(sv2, len); \ len; \ }) # define sv_len_utf8(sv) ({ SV *_sv1 = (sv); \ SvGETMAGIC(_sv1); \ sv_len_utf8_nomg(_sv1); \ }) # else /* Below is no brace groups */ PERL_STATIC_INLINE STRLEN D_PPP_sv_len_utf8_nomg(SV * sv) { dTHX; STRLEN len; if (SvUTF8(sv)) { if (SvGMAGICAL(sv)) len = Perl_sv_len_utf8(aTHX_ sv_mortalcopy_flags(sv, SV_NOSTEAL)); else len = Perl_sv_len_utf8(aTHX_ sv); } else SvPV_nomg(sv, len); return len; } # define sv_len_utf8_nomg(sv) D_PPP_sv_len_utf8_nomg(sv)
PERL_STATIC_INLINE STRLEN D_PPP_sv_len_utf8(SV * sv)
{
dTHX;
SvGETMAGIC(sv);
return sv_len_utf8_nomg(sv);
}
# define sv_len_utf8(sv) D_PPP_sv_len_utf8(sv)
# endif
# endif /* End of < 5.17.5 */
#endif#define NEED_utf8_to_uvchr_buf
#if defined(UTF8f) && defined(newSVpvf)
void UTF8f(x) SV *x PREINIT: U32 u; STRLEN len; char *ptr; INIT: ptr = SvPV(x, len); u = SvUTF8(x); PPCODE: x = sv_2mortal(newSVpvf("[%" UTF8f "]", UTF8fARG(u, len, ptr))); XPUSHs(x); XSRETURN(1);
#endif
#if { VERSION >= 5.006 } /* This is just a helper fcn, not publicized */ \ /* as being available and params not what the */ \ /* API function has; works on EBCDIC too */
SV * uvchr_to_utf8(native)
UV native
PREINIT:
int len;
U8 string[UTF8_MAXBYTES+1];
int i;
UV uni;
CODE:
len = UVCHR_SKIP(native);
for (i = 0; i < len; i++) {
string[i] = '\0';
}
if (len <= 1) {
string[0] = native;
}
else {
i = len;
uni = NATIVE_TO_UNI(native);
while (i-- > 1) {
string[i] = I8_TO_NATIVE_UTF8((uni & UTF_CONTINUATION_MASK) | UTF_CONTINUATION_MARK);
uni >>= UTF_ACCUMULATION_SHIFT;
}
string[0] = I8_TO_NATIVE_UTF8((uni & UTF_START_MASK(len)) | UTF_START_MARK(len));
}
RETVAL = newSVpvn((char *) string, len);
SvUTF8_on(RETVAL);
OUTPUT:
RETVAL#endif #if defined(UTF8_SAFE_SKIP) && defined(UTF8SKIP)
STRLEN UTF8_SAFE_SKIP(s, adjustment) char * s int adjustment PREINIT: const char *const_s; CODE: const_s = s; /* Instead of passing in an 'e' ptr, use the real end, adjusted */ RETVAL = UTF8_SAFE_SKIP(const_s, s + UTF8SKIP(s) + adjustment); OUTPUT: RETVAL
#endif
#ifdef isUTF8_CHAR
STRLEN isUTF8_CHAR(s, adjustment) unsigned char * s int adjustment PREINIT: const unsigned char *const_s; const unsigned char *const_e; CODE: const_s = s; /* Instead of passing in an 'e' ptr, use the real end, adjusted */ const_e = const_s + UTF8SKIP(const_s) + adjustment; RETVAL = isUTF8_CHAR(const_s, const_e); OUTPUT: RETVAL
#endif
#ifdef foldEQ_utf8
STRLEN foldEQ_utf8(s1, l1, u1, s2, l2, u2) char *s1 UV l1 bool u1 char *s2 UV l2 bool u2 PREINIT: const char *const_s1; const char *const_s2; CODE: const_s1 = s1; const_s2 = s2; RETVAL = foldEQ_utf8(const_s1, NULL, l1, u1, const_s2, NULL, l2, u2); OUTPUT: RETVAL
#endif
#ifdef utf8_to_uvchr_buf
AV * utf8_to_uvchr_buf(s, adjustment) unsigned char *s int adjustment PREINIT: AV *av; STRLEN len; const unsigned char *const_s; CODE: av = newAV(); const_s = s; av_push(av, newSVuv(utf8_to_uvchr_buf(const_s, s + UTF8SKIP(s) + adjustment, &len))); if (len == (STRLEN) -1) { av_push(av, newSViv(-1)); } else { av_push(av, newSVuv(len)); } RETVAL = av; OUTPUT: RETVAL
#endif
#ifdef utf8_to_uvchr
AV * utf8_to_uvchr(s) unsigned char *s PREINIT: AV *av; STRLEN len; const unsigned char *const_s; CODE: av = newAV(); const_s = s; av_push(av, newSVuv(utf8_to_uvchr(const_s, &len))); if (len == (STRLEN) -1) { av_push(av, newSViv(-1)); } else { av_push(av, newSVuv(len)); } RETVAL = av; OUTPUT: RETVAL
#endif
#ifdef sv_len_utf8
STRLEN sv_len_utf8(sv) SV *sv CODE: RETVAL = sv_len_utf8(sv); OUTPUT: RETVAL
#endif
#ifdef sv_len_utf8_nomg
STRLEN sv_len_utf8_nomg(sv) SV *sv CODE: RETVAL = sv_len_utf8_nomg(sv); OUTPUT: RETVAL
#endif
#ifdef UVCHR_IS_INVARIANT
bool UVCHR_IS_INVARIANT(c) unsigned c PREINIT: CODE: RETVAL = UVCHR_IS_INVARIANT(c); OUTPUT: RETVAL
#endif
#ifdef UVCHR_SKIP
STRLEN UVCHR_SKIP(c) UV c PREINIT: CODE: RETVAL = UVCHR_SKIP(c); OUTPUT: RETVAL
#endif
BEGIN { # skip tests on 5.6.0 and earlier, plus 5.7.0 if (ivers($]) <= ivers(5.6) || ivers($]) == ivers(5.7) ) { skip 'skip: broken utf8 support', 98; exit; } require warnings; }
is(Devel::PPPort::UTF8f(42), '[42]'); is(Devel::PPPort::UTF8f('abc'), '[abc]'); is(Devel::PPPort::UTF8f("\x{263a}"), "[\x{263a}]");
my $str = "\x{A8}"; if (ivers($]) >= ivers(5.8)) { eval q{utf8::upgrade($str)} } is(Devel::PPPort::UTF8f($str), "[\x{A8}]"); if (ivers($]) >= ivers(5.8)) { eval q{utf8::downgrade($str)} } is(Devel::PPPort::UTF8f($str), "[\x{A8}]");
is(&Devel::PPPort::UTF8_SAFE_SKIP("A", 0), 1); is(&Devel::PPPort::UTF8_SAFE_SKIP("A", -1), 0);
is(&Devel::PPPort::isUTF8_CHAR("A", -1), 0); is(&Devel::PPPort::isUTF8_CHAR("A", 0), 1); is(&Devel::PPPort::isUTF8_CHAR("\x{100}", -1), 0); is(&Devel::PPPort::isUTF8_CHAR("\x{100}", 0), 2);
is(&Devel::PPPort::UVCHR_IS_INVARIANT(ord("A")), 1); ok(! &Devel::PPPort::UVCHR_IS_INVARIANT(0xb6)); ok(! &Devel::PPPort::UVCHR_IS_INVARIANT(0x100));
is(&Devel::PPPort::UVCHR_SKIP(ord("A")), 1); is(&Devel::PPPort::UVCHR_SKIP(0xb6), 2, "This is a test"); is(&Devel::PPPort::UVCHR_SKIP(0x3FF), 2); is(&Devel::PPPort::UVCHR_SKIP(0x3FFF), 3); is(&Devel::PPPort::UVCHR_SKIP(0x3FFFF), 4); is(&Devel::PPPort::UVCHR_SKIP(0x3FFFFF), 5); is(&Devel::PPPort::UVCHR_SKIP(0x3FFFFFF), ord("A") == 65 ? 5 : 6); is(&Devel::PPPort::UVCHR_SKIP(0x4000000), ord("A") == 65 ? 6 : 7); if (ord("A") != 65) { skip("Test not valid on EBCDIC", 1) } else { is(&Devel::PPPort::UVCHR_SKIP(0xFFFFFFFF), 7); }
if (ivers($]) < ivers(5.8)) { skip("Perl version too early", 3); } else { is(&Devel::PPPort::foldEQ_utf8("A\x{100}", 3, 1, "a\x{101}", 3, 1), 1); is(&Devel::PPPort::foldEQ_utf8("A\x{100}", 3, 1, "a\x{102}", 3, 1), 0); is(&Devel::PPPort::foldEQ_utf8("A\x{100}", 3, 1, "b\x{101}", 3, 1), 0); }
my $ret = &Devel::PPPort::utf8_to_uvchr("A"); is($ret->[0], ord("A")); is($ret->[1], 1);
$ret = &Devel::PPPort::utf8_to_uvchr("\0"); is($ret->[0], 0); is($ret->[1], 1);
$ret = &Devel::PPPort::utf8_to_uvchr_buf("A", 0); is($ret->[0], ord("A")); is($ret->[1], 1);
$ret = &Devel::PPPort::utf8_to_uvchr_buf("\0", 0); is($ret->[0], 0); is($ret->[1], 1);
my @buf_tests = ( { input => "A", adjustment => -1, warning => eval "qr/empty/", no_warnings_returned_length => 0, }, { input => "\xc4\xc5", adjustment => 0, warning => eval "qr/non-continuation/", no_warnings_returned_length => 1, }, { input => "\xc4\x80", adjustment => -1, warning => eval "qr/short|1 byte, need 2/", no_warnings_returned_length => 1, }, { input => "\xc0\x81", adjustment => 0, warning => eval "qr/overlong|2 bytes, need 1/", no_warnings_returned_length => 2, }, { input => "\xe0\x80\x81", adjustment => 0, warning => eval "qr/overlong|3 bytes, need 1/", no_warnings_returned_length => 3, }, { input => "\xf0\x80\x80\x81", adjustment => 0, warning => eval "qr/overlong|4 bytes, need 1/", no_warnings_returned_length => 4, }, { # Old algorithm failed to detect this input => "\xff\x80\x90\x90\x90\xbf\xbf\xbf\xbf\xbf\xbf\xbf\xbf", adjustment => 0, warning => eval "qr/overflow/", no_warnings_returned_length => 13, }, );
if (ord("A") != 65) { # tests not valid for EBCDIC skip("Perl version too early", 2 + 4 + (scalar @buf_tests * 5)); } else { $ret = &Devel::PPPort::utf8_to_uvchr_buf("\xc4\x80", 0); is($ret->[0], 0x100); is($ret->[1], 2);
my @warnings;
local $SIG{__WARN__} = sub { push @warnings, @_; };
{
use warnings 'utf8';
$ret = &Devel::PPPort::utf8_to_uvchr("\xe0\0\x80");
is($ret->[0], 0);
is($ret->[1], -1);
no warnings 'utf8';
$ret = &Devel::PPPort::utf8_to_uvchr("\xe0\0\x80");
is($ret->[0], 0xFFFD);
is($ret->[1], 1);
}
# An empty input is an assertion failure on debugging builds. It is
# deliberately the first test.
require Config; Config->import;
use vars '%Config';
# VMS doesn't put DEBUGGING in ccflags, and Windows doesn't have
# $Config{config_args}. When 5.14 or later can be assumed, use
# Config::non_bincompat_options(), but for now we're stuck with this.
if ( $Config{ccflags} =~ /-DDEBUGGING/
|| $^O eq 'VMS' && $Config{config_args} =~ /\bDDEBUGGING\b/)
{
shift @buf_tests;
skip("Test not valid on DEBUGGING builds", 5);
}
my $test;
for $test (@buf_tests) {
my $input = $test->{'input'};
my $adjustment = $test->{'adjustment'};
my $display = 'utf8_to_uvchr_buf("';
my $i;
for ($i = 0; $i < length($input) + $adjustment; $i++) {
$display .= sprintf "\\x%02x", ord substr($input, $i, 1);
}
$display .= '")';
my $warning = $test->{'warning'};
undef @warnings;
use warnings 'utf8';
$ret = &Devel::PPPort::utf8_to_uvchr_buf($input, $adjustment);
is($ret->[0], 0, "returned value $display; warnings enabled");
is($ret->[1], -1, "returned length $display; warnings enabled");
my $all_warnings = join "; ", @warnings;
my $contains = grep { $_ =~ $warning } $all_warnings;
is($contains, 1, $display
. "; Got: '$all_warnings', which should contain '$warning'");
undef @warnings;
no warnings 'utf8';
$ret = &Devel::PPPort::utf8_to_uvchr_buf($input, $adjustment);
is($ret->[0], 0xFFFD, "returned value $display; warnings disabled");
is($ret->[1], $test->{'no_warnings_returned_length'},
"returned length $display; warnings disabled");
}
}if (ivers($]) ge ivers(5.008)) { BEGIN { if (ivers($]) ge ivers(5.008)) { require utf8; "utf8"->import() } }
is(Devel::PPPort::sv_len_utf8("aščť"), 4);
is(Devel::PPPort::sv_len_utf8_nomg("aščť"), 4);
my $str = "áíé";
utf8::downgrade($str);
is(Devel::PPPort::sv_len_utf8($str), 3);
utf8::downgrade($str);
is(Devel::PPPort::sv_len_utf8_nomg($str), 3);
utf8::upgrade($str);
is(Devel::PPPort::sv_len_utf8($str), 3);
utf8::upgrade($str);
is(Devel::PPPort::sv_len_utf8_nomg($str), 3);
tie my $scalar, 'TieScalarCounter', "é";
is(tied($scalar)->{fetch}, 0);
is(tied($scalar)->{store}, 0);
is(Devel::PPPort::sv_len_utf8($scalar), 2);
is(tied($scalar)->{fetch}, 1);
is(tied($scalar)->{store}, 0);
is(Devel::PPPort::sv_len_utf8($scalar), 3);
is(tied($scalar)->{fetch}, 2);
is(tied($scalar)->{store}, 0);
is(Devel::PPPort::sv_len_utf8($scalar), 4);
is(tied($scalar)->{fetch}, 3);
is(tied($scalar)->{store}, 0);
is(Devel::PPPort::sv_len_utf8_nomg($scalar), 4);
is(tied($scalar)->{fetch}, 3);
is(tied($scalar)->{store}, 0);
is(Devel::PPPort::sv_len_utf8_nomg($scalar), 4);
is(tied($scalar)->{fetch}, 3);
is(tied($scalar)->{store}, 0);
} else {
skip 'skip: no utf8::downgrade/utf8::upgrade support', 23;
}package TieScalarCounter;
sub TIESCALAR { my ($class, $value) = @_; return bless { fetch => 0, store => 0, value => $value }, $class; }
sub FETCH { BEGIN { if (main::ivers($]) ge main::ivers(5.008)) { require utf8; "utf8"->import() } } my ($self) = @_; $self->{fetch}++; return $self->{value} .= "é"; }
sub STORE { my ($self, $value) = @_; $self->{store}++; $self->{value} = $value; }
6 POD Errors
The following errors were encountered while parsing the POD:
- Around line 1:
Unknown directive: =provides
- Around line 11:
Unknown directive: =implementation
- Around line 541:
Unknown directive: =xsinit
- Around line 545:
Unknown directive: =xsubs
- Around line 768:
Unknown directive: =tests
- Around line 960:
Non-ASCII character seen before =encoding in 'is(Devel::PPPort::sv_len_utf8("aščť"),'. Assuming UTF-8