* dot.
*
* This sets several interpreter-level variables:
- * PL_numeric_name The default locale's name: a copy of 'newnum'
+ * PL_numeric_name The underlying locale's name: a copy of 'newnum'
* PL_numeric_local A boolean indicating if the toggled state is such
* that the current locale is the program's underlying
* locale
char *p;
const bool locwarn = (printwarn > 1 ||
(printwarn &&
- (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))));
+ (!(p = PerlEnv_getenv("PERL_BADLANG")) ||
+ grok_atou(p, NULL))));
bool done = FALSE;
#ifdef WIN32
/* In some systems you can find out the system default locale
/* Returns TRUE if the current locale for 'category' is UTF-8; FALSE
* otherwise. 'category' may not be LC_ALL. If the platform doesn't have
* nl_langinfo(), nor MB_CUR_MAX, this employs a heuristic, which hence
- * could give the wrong result. It errs on the side of not being a UTF-8
- * locale. */
+ * could give the wrong result. The result will very likely be correct for
+ * languages that have commonly used non-ASCII characters, but for notably
+ * English, it comes down to if the locale's name ends in something like
+ * "UTF-8". It errs on the side of not being a UTF-8 locale. */
char *save_input_locale = NULL;
STRLEN final_pos;
if (category != LC_CTYPE) { /* These work only on LC_CTYPE */
/* Get the current LC_CTYPE locale */
- save_ctype_locale = stdize_locale(savepv(setlocale(LC_CTYPE, NULL)));
+ save_ctype_locale = setlocale(LC_CTYPE, NULL);
if (! save_ctype_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for LC_CTYPE\n"));
goto cant_use_nllanginfo;
}
+ save_ctype_locale = stdize_locale(savepv(save_ctype_locale));
/* If LC_CTYPE and the desired category use the same locale, this
* means that finding the value for LC_CTYPE is the same as finding
# if defined(HAS_NL_LANGINFO) && defined(CODESET)
{
- char *codeset = savepv(nl_langinfo(CODESET));
+ char *codeset = nl_langinfo(CODESET);
if (codeset && strNE(codeset, "")) {
+ codeset = savepv(codeset);
/* If we switched LC_CTYPE, switch back */
if (save_ctype_locale) {
Safefree(save_input_locale);
return is_utf8;
}
- Safefree(codeset);
}
# endif
* result */
if (is_utf8) {
wchar_t wc;
- GCC_DIAG_IGNORE(-Wunused-result);
- (void) mbtowc(&wc, NULL, 0); /* Reset any shift state */
- GCC_DIAG_RESTORE;
+ PERL_UNUSED_RESULT(mbtowc(&wc, NULL, 0));/* Reset any shift state */
errno = 0;
if ((size_t)mbtowc(&wc, HYPHEN_UTF8, strlen(HYPHEN_UTF8))
!= strlen(HYPHEN_UTF8)
* currency symbol to see if it disambiguates things. Often that will be
* in the native script, and if the symbol isn't in UTF-8, we know that the
* locale isn't. If it is non-ASCII UTF-8, we infer that the locale is
- * too. */
+ * too, as the odds of a non-UTF8 string being valid UTF-8 are quite small
+ * */
#ifdef HAS_LOCALECONV
# ifdef USE_LOCALE_MONETARY
{
char *save_monetary_locale = NULL;
- bool illegal_utf8 = FALSE;
bool only_ascii = FALSE;
- const struct lconv* const lc = localeconv();
+ bool is_utf8 = FALSE;
+ struct lconv* lc;
/* Like above for LC_CTYPE, we first set LC_MONETARY to the locale of
* the desired category, if it isn't that locale already */
if (category != LC_MONETARY) {
- save_monetary_locale = stdize_locale(savepv(setlocale(LC_MONETARY,
- NULL)));
+ save_monetary_locale = setlocale(LC_MONETARY, NULL);
if (! save_monetary_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for LC_MONETARY\n"));
goto cant_use_monetary;
}
+ save_monetary_locale = stdize_locale(savepv(save_monetary_locale));
- if (strNE(save_monetary_locale, save_input_locale)) {
- if (! setlocale(LC_MONETARY, save_input_locale)) {
- DEBUG_L(PerlIO_printf(Perl_debug_log,
- "Could not change LC_MONETARY locale to %s\n",
- save_input_locale));
- Safefree(save_monetary_locale);
- goto cant_use_monetary;
- }
+ if (strEQ(save_monetary_locale, save_input_locale)) {
+ Safefree(save_monetary_locale);
+ save_monetary_locale = NULL;
+ }
+ else if (! setlocale(LC_MONETARY, save_input_locale)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "Could not change LC_MONETARY locale to %s\n",
+ save_input_locale));
+ Safefree(save_monetary_locale);
+ goto cant_use_monetary;
}
}
/* Here the current LC_MONETARY is set to the locale of the category
* whose information is desired. */
- if (lc && lc->currency_symbol) {
- if (! is_utf8_string((U8 *) lc->currency_symbol, 0)) {
- DEBUG_L(PerlIO_printf(Perl_debug_log,
- "Currency symbol for %s is not legal UTF-8\n",
- save_input_locale));
- illegal_utf8 = TRUE;
- }
- else if (is_ascii_string((U8 *) lc->currency_symbol, 0)) {
- DEBUG_L(PerlIO_printf(Perl_debug_log, "Currency symbol for %s contains only ASCII; can't use for determining if UTF-8 locale\n", save_input_locale));
- only_ascii = TRUE;
- }
+ lc = localeconv();
+ if (! lc
+ || ! lc->currency_symbol
+ || is_ascii_string((U8 *) lc->currency_symbol, 0))
+ {
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "Couldn't get currency symbol for %s, or contains only ASCII; can't use for determining if UTF-8 locale\n", save_input_locale));
+ only_ascii = TRUE;
+ }
+ else {
+ is_utf8 = is_utf8_string((U8 *) lc->currency_symbol, 0);
}
/* If we changed it, restore LC_MONETARY to its original locale */
Safefree(save_monetary_locale);
}
- if (only_ascii) {
- goto cant_use_monetary;
- }
-
- Safefree(save_input_locale);
+ if (! only_ascii) {
- /* It isn't a UTF-8 locale if the symbol is not legal UTF-8; otherwise
- * assume the locale is UTF-8 if and only if the symbol is non-ascii
- * UTF-8. (We can't really tell if the locale is UTF-8 or not if the
- * symbol is just a '$', so we err on the side of it not being UTF-8)
- * */
- DEBUG_L(PerlIO_printf(Perl_debug_log, "\tis_utf8=%d\n", ! illegal_utf8));
- return ! illegal_utf8;
+ /* It isn't a UTF-8 locale if the symbol is not legal UTF-8;
+ * otherwise assume the locale is UTF-8 if and only if the symbol
+ * is non-ascii UTF-8. */
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "\t?Currency symbol for %s is UTF-8=%d\n",
+ save_input_locale, is_utf8));
+ Safefree(save_input_locale);
+ return is_utf8;
+ }
}
cant_use_monetary:
# endif /* USE_LOCALE_MONETARY */
#endif /* HAS_LOCALECONV */
-#if 0 && defined(HAS_STRERROR) && defined(USE_LOCALE_MESSAGES)
+#if defined(HAS_STRFTIME) && defined(USE_LOCALE_TIME)
+
+/* Still haven't found a non-ASCII string to disambiguate UTF-8 or not. Try
+ * the names of the months and weekdays, timezone, and am/pm indicator */
+ {
+ char *save_time_locale = NULL;
+ int hour = 10;
+ bool is_dst = FALSE;
+ int dom = 1;
+ int month = 0;
+ int i;
+ char * formatted_time;
+
+
+ /* Like above for LC_MONETARY, we set LC_TIME to the locale of the
+ * desired category, if it isn't that locale already */
+
+ if (category != LC_TIME) {
+
+ save_time_locale = setlocale(LC_TIME, NULL);
+ if (! save_time_locale) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "Could not find current locale for LC_TIME\n"));
+ goto cant_use_time;
+ }
+ save_time_locale = stdize_locale(savepv(save_time_locale));
+
+ if (strEQ(save_time_locale, save_input_locale)) {
+ Safefree(save_time_locale);
+ save_time_locale = NULL;
+ }
+ else if (! setlocale(LC_TIME, save_input_locale)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "Could not change LC_TIME locale to %s\n",
+ save_input_locale));
+ Safefree(save_time_locale);
+ goto cant_use_time;
+ }
+ }
+
+ /* Here the current LC_TIME is set to the locale of the category
+ * whose information is desired. Look at all the days of the week and
+ * month names, and the timezone and am/pm indicator for non-ASCII
+ * characters. The first such a one found will tell us if the locale
+ * is UTF-8 or not */
+
+ for (i = 0; i < 7 + 12; i++) { /* 7 days; 12 months */
+ formatted_time = my_strftime("%A %B %Z %p",
+ 0, 0, hour, dom, month, 112, 0, 0, is_dst);
+ if (! formatted_time || is_ascii_string((U8 *) formatted_time, 0)) {
+
+ /* Here, we didn't find a non-ASCII. Try the next time through
+ * with the complemented dst and am/pm, and try with the next
+ * weekday. After we have gotten all weekdays, try the next
+ * month */
+ is_dst = ! is_dst;
+ hour = (hour + 12) % 24;
+ dom++;
+ if (i > 6) {
+ month++;
+ }
+ continue;
+ }
+
+ /* Here, we have a non-ASCII. Return TRUE is it is valid UTF8;
+ * false otherwise. But first, restore LC_TIME to its original
+ * locale if we changed it */
+ if (save_time_locale) {
+ setlocale(LC_TIME, save_time_locale);
+ Safefree(save_time_locale);
+ }
+
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "\t?time-related strings for %s are UTF-8=%d\n",
+ save_input_locale,
+ is_utf8_string((U8 *) formatted_time, 0)));
+ Safefree(save_input_locale);
+ return is_utf8_string((U8 *) formatted_time, 0);
+ }
+
+ /* Falling off the end of the loop indicates all the names were just
+ * ASCII. Go on to the next test. If we changed it, restore LC_TIME
+ * to its original locale */
+ if (save_time_locale) {
+ setlocale(LC_TIME, save_time_locale);
+ Safefree(save_time_locale);
+ }
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "All time-related words for %s contain only ASCII; can't use for determining if UTF-8 locale\n", save_input_locale));
+ }
+ cant_use_time:
+
+#endif
+
+#if 0 && defined(USE_LOCALE_MESSAGES) && defined(HAS_SYS_ERRLIST)
/* This code is ifdefd out because it was found to not be necessary in testing
- * on our dromedary test machine, which has over 700 locales. There, looking
- * at just the currency symbol gave essentially the same results as doing this
- * extra work. Executing this also caused segfaults in miniperl. I left it in
- * so as to avoid rewriting it if real-world experience indicates that
- * dromedary is an outlier. Essentially, instead of returning abpve if we
+ * on our dromedary test machine, which has over 700 locales. There, this
+ * added no value to looking at the currency symbol and the time strings. I
+ * left it in so as to avoid rewriting it if real-world experience indicates
+ * that dromedary is an outlier. Essentially, instead of returning abpve if we
* haven't found illegal utf8, we continue on and examine all the strerror()
* messages on the platform for utf8ness. If all are ASCII, we still don't
* know the answer; but otherwise we have a pretty good indication of the
- * utf8ness. The reason this doesn't necessarily help much is that the
- * messages may not have been translated into the locale. The currency symbol
- * is much more likely to have been translated. The code below would need to
- * be altered somewhat to just be a continuation of testing the currency
- * symbol. */
+ * utf8ness. The reason this doesn't help much is that the messages may not
+ * have been translated into the locale. The currency symbol and time strings
+ * are much more likely to have been translated. */
+ {
int e;
- unsigned int failures = 0, non_ascii = 0;
+ bool is_utf8 = FALSE;
+ bool non_ascii = FALSE;
char *save_messages_locale = NULL;
+ const char * errmsg = NULL;
- /* Like above for LC_CTYPE, we set LC_MESSAGES to the locale of the
- * desired category, if it isn't that locale already */
+ /* Like above, we set LC_MESSAGES to the locale of the desired
+ * category, if it isn't that locale already */
if (category != LC_MESSAGES) {
- save_messages_locale = stdize_locale(savepv(setlocale(LC_MESSAGES,
- NULL)));
+ save_messages_locale = setlocale(LC_MESSAGES, NULL);
if (! save_messages_locale) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "Could not find current locale for LC_MESSAGES\n"));
goto cant_use_messages;
}
+ save_messages_locale = stdize_locale(savepv(save_messages_locale));
if (strEQ(save_messages_locale, save_input_locale)) {
- Safefree(save_input_locale);
+ Safefree(save_messages_locale);
+ save_messages_locale = NULL;
}
else if (! setlocale(LC_MESSAGES, save_input_locale)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "Could not change LC_MESSAGES locale to %s\n",
+ save_input_locale));
Safefree(save_messages_locale);
goto cant_use_messages;
}
}
/* Here the current LC_MESSAGES is set to the locale of the category
- * whose information is desired. Look through all the messages */
+ * whose information is desired. Look through all the messages. We
+ * can't use Strerror() here because it may expand to code that
+ * segfaults in miniperl */
- for (e = 0;
-#ifdef HAS_SYS_ERRLIST
- e <= sys_nerr
-#endif
- ; e++)
- {
- const U8* const errmsg = (U8 *) Strerror(e) ;
- if (!errmsg)
- break;
- if (! is_utf8_string(errmsg, 0)) {
- failures++;
+ for (e = 0; e <= sys_nerr; e++) {
+ errno = 0;
+ errmsg = sys_errlist[e];
+ if (errno || !errmsg) {
break;
}
- else if (! is_ascii_string(errmsg, 0)) {
- non_ascii++;
+ errmsg = savepv(errmsg);
+ if (! is_ascii_string((U8 *) errmsg, 0)) {
+ non_ascii = TRUE;
+ is_utf8 = is_utf8_string((U8 *) errmsg, 0);
+ break;
}
}
+ Safefree(errmsg);
/* And, if we changed it, restore LC_MESSAGES to its original locale */
if (save_messages_locale) {
Safefree(save_messages_locale);
}
- /* Any non-UTF-8 message means not a UTF-8 locale; if all are valid,
- * any non-ascii means it is one; otherwise we assume it isn't */
- return (failures) ? FALSE : non_ascii;
+ if (non_ascii) {
+
+ /* Any non-UTF-8 message means not a UTF-8 locale; if all are valid,
+ * any non-ascii means it is one; otherwise we assume it isn't */
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "\t?error messages for %s are UTF-8=%d\n",
+ save_input_locale,
+ is_utf8));
+ Safefree(save_input_locale);
+ return is_utf8;
+ }
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "All error messages for %s contain only ASCII; can't use for determining if UTF-8 locale\n", save_input_locale));
}
cant_use_messages:
while ((name += strcspn(name, "Uu") + 1)
<= save_input_locale + final_pos - 2)
{
- if (toFOLD(*(name)) != 't'
- || toFOLD(*(name + 1)) != 'f')
+ if (!isALPHA_FOLD_NE(*name, 't')
+ || isALPHA_FOLD_NE(*(name + 1), 'f'))
{
continue;
}
name++;
}
if (*(name) == '8') {
- Safefree(save_input_locale);
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Locale %s ends with UTF-8 in name\n",
save_input_locale));
+ Safefree(save_input_locale);
return TRUE;
}
}
}
/*
+
+=head1 Locale-related functions and macros
+
+=for apidoc sync_locale
+
+Changing the program's locale should be avoided by XS code. Nevertheless,
+certain non-Perl libraries called from XS, such as C<Gtk> do so. When this
+happens, Perl needs to be told that the locale has changed. Use this function
+to do so, before returning to Perl.
+
+=cut
+*/
+
+void
+Perl_sync_locale(pTHX)
+{
+
+#ifdef USE_LOCALE_CTYPE
+ new_ctype(setlocale(LC_CTYPE, NULL));
+#endif /* USE_LOCALE_CTYPE */
+
+#ifdef USE_LOCALE_COLLATE
+ new_collate(setlocale(LC_COLLATE, NULL));
+#endif
+
+#ifdef USE_LOCALE_NUMERIC
+ set_numeric_local(); /* Switch from "C" to underlying LC_NUMERIC */
+ new_numeric(setlocale(LC_NUMERIC, NULL));
+#endif /* USE_LOCALE_NUMERIC */
+
+}
+
+
+
+/*
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
https://perl5.git.perl.org / perl5.git / blobdiff