/* utility functions for handling locale-specific stuff like what
* character represents the decimal point.
*
- * All C programs have an underlying locale. Perl generally doesn't pay any
- * attention to it except within the scope of a 'use locale'. For most
+ * All C programs have an underlying locale. Perl code generally doesn't pay
+ * any attention to it except within the scope of a 'use locale'. For most
* categories, it accomplishes this by just using different operations if it is
* in such scope than if not. However, various libc functions called by Perl
* are affected by the LC_NUMERIC category, so there are macros in perl.h that
#include "EXTERN.h"
#define PERL_IN_LOCALE_C
+#include "perl_langinfo.h"
#include "perl.h"
-#ifdef I_LANGINFO
-# include <langinfo.h>
-#endif
-
#include "reentr.h"
/* If the environment says to, we can output debugging information during
* initialization. This is done before option parsing, and before any thread
* creation, so can be a file-level static */
#ifdef DEBUGGING
-# ifdef PERL_GLOBAL_STRUCT
+# ifdef PERL_GLOBAL_STRUCT
/* no global syms allowed */
-# define debug_initialization 0
-# define DEBUG_INITIALIZATION_set(v)
-# else
+# define debug_initialization 0
+# define DEBUG_INITIALIZATION_set(v)
+# else
static bool debug_initialization = FALSE;
-# define DEBUG_INITIALIZATION_set(v) (debug_initialization = v)
-# endif
+# define DEBUG_INITIALIZATION_set(v) (debug_initialization = v)
+# endif
#endif
+/* strlen() of a literal string constant. XXX We might want this more general,
+ * but using it in just this file for now */
+#define STRLENs(s) (sizeof("" s "") - 1)
+
+/* Is the C string input 'name' "C" or "POSIX"? If so, and 'name' is the
+ * return of setlocale(), then this is extremely likely to be the C or POSIX
+ * locale. However, the output of setlocale() is documented to be opaque, but
+ * the odds are extremely small that it would return these two strings for some
+ * other locale. Note that VMS in these two locales includes many non-ASCII
+ * characters as controls and punctuation (below are hex bytes):
+ * cntrl: 84-97 9B-9F
+ * punct: A1-A3 A5 A7-AB B0-B3 B5-B7 B9-BD BF-CF D1-DD DF-EF F1-FD
+ * Oddly, none there are listed as alphas, though some represent alphabetics
+ * http://www.nntp.perl.org/group/perl.perl5.porters/2013/02/msg198753.html */
+#define isNAME_C_OR_POSIX(name) \
+ ( (name) != NULL \
+ && (( *(name) == 'C' && (*(name + 1)) == '\0') \
+ || strEQ((name), "POSIX")))
+
#ifdef USE_LOCALE
/*
return locs;
}
-#endif
+/* Two parallel arrays; first the locale categories Perl uses on this system;
+ * the second array is their names. These arrays are in mostly arbitrary
+ * order. */
+
+const int categories[] = {
+
+# ifdef USE_LOCALE_NUMERIC
+ LC_NUMERIC,
+# endif
+# ifdef USE_LOCALE_CTYPE
+ LC_CTYPE,
+# endif
+# ifdef USE_LOCALE_COLLATE
+ LC_COLLATE,
+# endif
+# ifdef USE_LOCALE_TIME
+ LC_TIME,
+# endif
+# ifdef USE_LOCALE_MESSAGES
+ LC_MESSAGES,
+# endif
+# ifdef USE_LOCALE_MONETARY
+ LC_MONETARY,
+# endif
+# ifdef LC_ALL
+ LC_ALL,
+# endif
+ -1 /* Placeholder because C doesn't allow a
+ trailing comma, and it would get complicated
+ with all the #ifdef's */
+};
+
+/* The top-most real element is LC_ALL */
+
+const char * category_names[] = {
+
+# ifdef USE_LOCALE_NUMERIC
+ "LC_NUMERIC",
+# endif
+# ifdef USE_LOCALE_CTYPE
+ "LC_CTYPE",
+# endif
+# ifdef USE_LOCALE_COLLATE
+ "LC_COLLATE",
+# endif
+# ifdef USE_LOCALE_TIME
+ "LC_TIME",
+# endif
+# ifdef USE_LOCALE_MESSAGES
+ "LC_MESSAGES",
+# endif
+# ifdef USE_LOCALE_MONETARY
+ "LC_MONETARY",
+# endif
+# ifdef LC_ALL
+ "LC_ALL",
+# endif
+ NULL /* Placeholder */
+ };
+
+# ifdef LC_ALL
+
+ /* On systems with LC_ALL, it is kept in the highest index position. (-2
+ * to account for the final unused placeholder element.) */
+# define NOMINAL_LC_ALL_INDEX (C_ARRAY_LENGTH(categories) - 2)
-void
-Perl_set_numeric_radix(pTHX)
+# else
+
+ /* On systems without LC_ALL, we pretend it is there, one beyond the real
+ * top element, hence in the unused placeholder element. */
+# define NOMINAL_LC_ALL_INDEX (C_ARRAY_LENGTH(categories) - 1)
+
+# endif
+
+/* Pretending there is an LC_ALL element just above allows us to avoid most
+ * special cases. Most loops through these arrays in the code below are
+ * written like 'for (i = 0; i < NOMINAL_LC_ALL_INDEX; i++)'. They will work
+ * on either type of system. But the code must be written to not access the
+ * element at 'LC_ALL_INDEX' except on platforms that have it. This can be
+ * checked for at compile time by using the #define LC_ALL_INDEX which is only
+ * defined if we do have LC_ALL. */
+
+/* Now create LC_foo_INDEX #defines for just those categories on this system */
+# ifdef USE_LOCALE_NUMERIC
+# define LC_NUMERIC_INDEX 0
+# define _DUMMY_NUMERIC LC_NUMERIC_INDEX
+# else
+# define _DUMMY_NUMERIC -1
+# endif
+# ifdef USE_LOCALE_CTYPE
+# define LC_CTYPE_INDEX _DUMMY_NUMERIC + 1
+# define _DUMMY_CTYPE LC_CTYPE_INDEX
+# else
+# define _DUMMY_CTYPE _DUMMY_NUMERIC
+# endif
+# ifdef USE_LOCALE_COLLATE
+# define LC_COLLATE_INDEX _DUMMY_CTYPE + 1
+# define _DUMMY_COLLATE LC_COLLATE_INDEX
+# else
+# define _DUMMY_COLLATE _DUMMY_COLLATE
+# endif
+# ifdef USE_LOCALE_TIME
+# define LC_TIME_INDEX _DUMMY_COLLATE + 1
+# define _DUMMY_TIME LC_TIME_INDEX
+# else
+# define _DUMMY_TIME _DUMMY_COLLATE
+# endif
+# ifdef USE_LOCALE_MESSAGES
+# define LC_MESSAGES_INDEX _DUMMY_TIME + 1
+# define _DUMMY_MESSAGES LC_MESSAGES_INDEX
+# else
+# define _DUMMY_MESSAGES _DUMMY_TIME
+# endif
+# ifdef USE_LOCALE_MONETARY
+# define LC_MONETARY_INDEX _DUMMY_MESSAGES + 1
+# define _DUMMY_MONETARY LC_MONETARY_INDEX
+# else
+# define _DUMMY_MONETARY _DUMMY_MESSAGES
+# endif
+# ifdef LC_ALL
+# define LC_ALL_INDEX _DUMMY_MONETARY + 1
+# endif
+#endif /* ifdef USE_LOCALE */
+
+/* Windows requres a customized base-level setlocale() */
+# ifdef WIN32
+# define my_setlocale(cat, locale) win32_setlocale(cat, locale)
+# else
+# define my_setlocale(cat, locale) setlocale(cat, locale)
+# endif
+
+/* Just placeholders for now. "_c" is intended to be called when the category
+ * is a constant known at compile time; "_r", not known until run time */
+# define do_setlocale_c(category, locale) my_setlocale(category, locale)
+# define do_setlocale_r(category, locale) my_setlocale(category, locale)
+
+STATIC void
+S_set_numeric_radix(pTHX_ const bool use_locale)
{
-#ifdef USE_LOCALE_NUMERIC
-# ifdef HAS_LOCALECONV
- const struct lconv* const lc = localeconv();
+ /* If 'use_locale' is FALSE, set to use a dot for the radix character. If
+ * TRUE, use the radix character derived from the current locale */
- if (lc && lc->decimal_point) {
- if (lc->decimal_point[0] == '.' && lc->decimal_point[1] == 0) {
- SvREFCNT_dec(PL_numeric_radix_sv);
- PL_numeric_radix_sv = NULL;
- }
- else {
- if (PL_numeric_radix_sv)
- sv_setpv(PL_numeric_radix_sv, lc->decimal_point);
- else
- PL_numeric_radix_sv = newSVpv(lc->decimal_point, 0);
- if (! is_invariant_string((U8 *) lc->decimal_point, 0)
- && is_utf8_string((U8 *) lc->decimal_point, 0)
+#if defined(USE_LOCALE_NUMERIC) && ( defined(HAS_LOCALECONV) \
+ || defined(HAS_NL_LANGINFO))
+
+ /* We only set up the radix SV if we are to use a locale radix ... */
+ if (use_locale) {
+ const char * radix = my_nl_langinfo(PERL_RADIXCHAR, FALSE);
+ /* FALSE => already in dest locale */
+
+ /* ... and the character being used isn't a dot */
+ if (strNE(radix, ".")) {
+ if (PL_numeric_radix_sv) {
+ sv_setpv(PL_numeric_radix_sv, radix);
+ }
+ else {
+ PL_numeric_radix_sv = newSVpv(radix, 0);
+ }
+
+ if ( ! is_utf8_invariant_string(
+ (U8 *) SvPVX(PL_numeric_radix_sv), SvCUR(PL_numeric_radix_sv))
+ && is_utf8_string(
+ (U8 *) SvPVX(PL_numeric_radix_sv), SvCUR(PL_numeric_radix_sv))
&& _is_cur_LC_category_utf8(LC_NUMERIC))
{
- SvUTF8_on(PL_numeric_radix_sv);
+ SvUTF8_on(PL_numeric_radix_sv);
}
- }
+ goto done;
+ }
}
- else
- PL_numeric_radix_sv = NULL;
-#ifdef DEBUGGING
+ SvREFCNT_dec(PL_numeric_radix_sv);
+ PL_numeric_radix_sv = NULL;
+
+ done: ;
+
+# ifdef DEBUGGING
+
if (DEBUG_L_TEST || debug_initialization) {
PerlIO_printf(Perl_debug_log, "Locale radix is '%s', ?UTF-8=%d\n",
(PL_numeric_radix_sv)
? cBOOL(SvUTF8(PL_numeric_radix_sv))
: 0);
}
-#endif
-# endif /* HAS_LOCALECONV */
-#endif /* USE_LOCALE_NUMERIC */
+# endif
+#endif /* USE_LOCALE_NUMERIC and can find the radix char */
+
}
-/* Is the C string input 'name' "C" or "POSIX"? If so, and 'name' is the
- * return of setlocale(), then this is extremely likely to be the C or POSIX
- * locale. However, the output of setlocale() is documented to be opaque, but
- * the odds are extremely small that it would return these two strings for some
- * other locale. Note that VMS in these two locales includes many non-ASCII
- * characters as controls and punctuation (below are hex bytes):
- * cntrl: 00-1F 7F 84-97 9B-9F
- * punct: 21-2F 3A-40 5B-60 7B-7E A1-A3 A5 A7-AB B0-B3 B5-B7 B9-BD BF-CF D1-DD DF-EF F1-FD
- * Oddly, none there are listed as alphas, though some represent alphabetics
- * http://www.nntp.perl.org/group/perl.perl5.porters/2013/02/msg198753.html */
-#define isNAME_C_OR_POSIX(name) ((name) != NULL \
- && ((*(name) == 'C' && (*(name + 1)) == '\0') \
- || strEQ((name), "POSIX")))
void
Perl_new_numeric(pTHX_ const char *newnum)
{
-#ifdef USE_LOCALE_NUMERIC
+
+#ifndef USE_LOCALE_NUMERIC
+
+ PERL_UNUSED_ARG(newnum);
+
+#else
/* Called after all libc setlocale() calls affecting LC_NUMERIC, to tell
* core Perl this and that 'newnum' is the name of the new locale.
* It installs this locale as the current underlying default.
*
* The default locale and the C locale can be toggled between by use of the
- * set_numeric_local() and set_numeric_standard() functions, which should
- * probably not be called directly, but only via macros like
+ * set_numeric_underlying() and set_numeric_standard() functions, which
+ * should probably not be called directly, but only via macros like
* SET_NUMERIC_STANDARD() in perl.h.
*
* The toggling is necessary mainly so that a non-dot radix decimal point
*
* This sets several interpreter-level variables:
* PL_numeric_name The underlying locale's name: a copy of 'newnum'
- * PL_numeric_local A boolean indicating if the toggled state is such
+ * PL_numeric_underlying A boolean indicating if the toggled state is such
* that the current locale is the program's underlying
* locale
* PL_numeric_standard An int indicating if the toggled state is such
Safefree(PL_numeric_name);
PL_numeric_name = NULL;
PL_numeric_standard = TRUE;
- PL_numeric_local = TRUE;
+ PL_numeric_underlying = TRUE;
return;
}
save_newnum = stdize_locale(savepv(newnum));
PL_numeric_standard = isNAME_C_OR_POSIX(save_newnum);
- PL_numeric_local = TRUE;
+ PL_numeric_underlying = TRUE;
if (! PL_numeric_name || strNE(PL_numeric_name, save_newnum)) {
Safefree(PL_numeric_name);
* need the underlying locale change to it temporarily). */
set_numeric_standard();
- set_numeric_radix();
-
-#else
- PERL_UNUSED_ARG(newnum);
#endif /* USE_LOCALE_NUMERIC */
+
}
void
Perl_set_numeric_standard(pTHX)
{
+
#ifdef USE_LOCALE_NUMERIC
+
/* Toggle the LC_NUMERIC locale to C. Most code should use the macros like
* SET_NUMERIC_STANDARD() in perl.h instead of calling this directly. The
* macro avoids calling this routine if toggling isn't necessary according
* to our records (which could be wrong if some XS code has changed the
* locale behind our back) */
- setlocale(LC_NUMERIC, "C");
+ do_setlocale_c(LC_NUMERIC, "C");
PL_numeric_standard = TRUE;
- PL_numeric_local = isNAME_C_OR_POSIX(PL_numeric_name);
- set_numeric_radix();
-#ifdef DEBUGGING
+ PL_numeric_underlying = isNAME_C_OR_POSIX(PL_numeric_name);
+ set_numeric_radix(0);
+
+# ifdef DEBUGGING
+
if (DEBUG_L_TEST || debug_initialization) {
PerlIO_printf(Perl_debug_log,
- "Underlying LC_NUMERIC locale now is C\n");
+ "LC_NUMERIC locale now is standard C\n");
}
-#endif
+# endif
#endif /* USE_LOCALE_NUMERIC */
+
}
void
-Perl_set_numeric_local(pTHX)
+Perl_set_numeric_underlying(pTHX)
{
+
#ifdef USE_LOCALE_NUMERIC
+
/* Toggle the LC_NUMERIC locale to the current underlying default. Most
- * code should use the macros like SET_NUMERIC_LOCAL() in perl.h instead of
- * calling this directly. The macro avoids calling this routine if
- * toggling isn't necessary according to our records (which could be wrong
- * if some XS code has changed the locale behind our back) */
+ * code should use the macros like SET_NUMERIC_UNDERLYING() in perl.h
+ * instead of calling this directly. The macro avoids calling this routine
+ * if toggling isn't necessary according to our records (which could be
+ * wrong if some XS code has changed the locale behind our back) */
- setlocale(LC_NUMERIC, PL_numeric_name);
+ do_setlocale_c(LC_NUMERIC, PL_numeric_name);
PL_numeric_standard = isNAME_C_OR_POSIX(PL_numeric_name);
- PL_numeric_local = TRUE;
- set_numeric_radix();
-#ifdef DEBUGGING
+ PL_numeric_underlying = TRUE;
+ set_numeric_radix(1);
+
+# ifdef DEBUGGING
+
if (DEBUG_L_TEST || debug_initialization) {
PerlIO_printf(Perl_debug_log,
- "Underlying LC_NUMERIC locale now is %s\n",
+ "LC_NUMERIC locale now is %s\n",
PL_numeric_name);
}
-#endif
+# endif
#endif /* USE_LOCALE_NUMERIC */
+
}
/*
* Set up for a new ctype locale.
*/
-void
-Perl_new_ctype(pTHX_ const char *newctype)
+STATIC void
+S_new_ctype(pTHX_ const char *newctype)
{
-#ifdef USE_LOCALE_CTYPE
+
+#ifndef USE_LOCALE_CTYPE
+
+ PERL_ARGS_ASSERT_NEW_CTYPE;
+ PERL_UNUSED_ARG(newctype);
+ PERL_UNUSED_CONTEXT;
+
+#else
/* Called after all libc setlocale() calls affecting LC_CTYPE, to tell
* core Perl this and that 'newctype' is the name of the new locale.
* NUL */
char bad_chars_list[ (94 * 4) + (3 * 5) + 1 ];
- bool check_for_problems = ckWARN_d(WARN_LOCALE); /* No warnings means
- no check */
+ /* Don't check for problems if we are suppressing the warnings */
+ bool check_for_problems = ckWARN_d(WARN_LOCALE)
+ || UNLIKELY(DEBUG_L_TEST);
bool multi_byte_locale = FALSE; /* Assume is a single-byte locale
to start */
unsigned int bad_count = 0; /* Count of bad characters */
* nowadays. It isn't a problem for most controls to be changed
* into something else; we check only \n and \t, though perhaps \r
* could be an issue as well. */
- if (check_for_problems
+ if ( check_for_problems
&& (isGRAPH_A(i) || isBLANK_A(i) || i == '\n'))
{
- if ((isALPHANUMERIC_A(i) && ! isALPHANUMERIC_LC(i))
+ if (( isALPHANUMERIC_A(i) && ! isALPHANUMERIC_LC(i))
|| (isPUNCT_A(i) && ! isPUNCT_LC(i))
|| (isBLANK_A(i) && ! isBLANK_LC(i))
|| (i == '\n' && ! isCNTRL_LC(i)))
}
}
-#ifdef MB_CUR_MAX
+# ifdef MB_CUR_MAX
+
/* We only handle single-byte locales (outside of UTF-8 ones; so if
* this locale requires more than one byte, there are going to be
* problems. */
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s:%d: check_for_problems=%d, MB_CUR_MAX=%d\n",
+ __FILE__, __LINE__, check_for_problems, (int) MB_CUR_MAX));
+
if (check_for_problems && MB_CUR_MAX > 1
/* Some platforms return MB_CUR_MAX > 1 for even the "C"
{
multi_byte_locale = TRUE;
}
-#endif
+
+# endif
if (bad_count || multi_byte_locale) {
PL_warn_locale = Perl_newSVpvf(aTHX_
? bad_chars_list
: ""
);
- /* If we are actually in the scope of the locale, output the
- * message now. Otherwise we save it to be output at the first
- * operation using this locale, if that actually happens. Most
- * programs don't use locales, so they are immune to bad ones */
- if (IN_LC(LC_CTYPE)) {
+ /* If we are actually in the scope of the locale or are debugging,
+ * output the message now. If not in that scope, we save the
+ * message to be output at the first operation using this locale,
+ * if that actually happens. Most programs don't use locales, so
+ * they are immune to bad ones. */
+ if (IN_LC(LC_CTYPE) || UNLIKELY(DEBUG_L_TEST)) {
/* We have to save 'newctype' because the setlocale() just
* below may destroy it. The next setlocale() further down
* here is transparent to this function's caller */
const char * const badlocale = savepv(newctype);
- setlocale(LC_CTYPE, "C");
+ do_setlocale_c(LC_CTYPE, "C");
/* The '0' below suppresses a bogus gcc compiler warning */
Perl_warner(aTHX_ packWARN(WARN_LOCALE), SvPVX(PL_warn_locale), 0);
- setlocale(LC_CTYPE, badlocale);
+
+ do_setlocale_c(LC_CTYPE, badlocale);
Safefree(badlocale);
- SvREFCNT_dec_NN(PL_warn_locale);
- PL_warn_locale = NULL;
+
+ if (IN_LC(LC_CTYPE)) {
+ SvREFCNT_dec_NN(PL_warn_locale);
+ PL_warn_locale = NULL;
+ }
}
}
}
#endif /* USE_LOCALE_CTYPE */
- PERL_ARGS_ASSERT_NEW_CTYPE;
- PERL_UNUSED_ARG(newctype);
- PERL_UNUSED_CONTEXT;
+
}
void
}
-void
-Perl_new_collate(pTHX_ const char *newcoll)
+STATIC void
+S_new_collate(pTHX_ const char *newcoll)
{
-#ifdef USE_LOCALE_COLLATE
+
+#ifndef USE_LOCALE_COLLATE
+
+ PERL_UNUSED_ARG(newcoll);
+ PERL_UNUSED_CONTEXT;
+
+#else
/* Called after all libc setlocale() calls affecting LC_COLLATE, to tell
* core Perl this and that 'newcoll' is the name of the new locale.
*
- * Any code changing the locale (outside this file) should use
- * POSIX::setlocale, which calls this function. Therefore this function
- * should be called directly only from this file and from
- * POSIX::setlocale().
- *
* The design of locale collation is that every locale change is given an
* index 'PL_collation_ix'. The first time a string particpates in an
* operation that requires collation while locale collation is active, it
PL_collxfrm_base = 0;
PL_collxfrm_mult = 2;
PL_in_utf8_COLLATE_locale = FALSE;
- *PL_strxfrm_min_char = '\0';
+ PL_strxfrm_NUL_replacement = '\0';
PL_strxfrm_max_cp = 0;
return;
}
}
PL_in_utf8_COLLATE_locale = _is_cur_LC_category_utf8(LC_COLLATE);
- *PL_strxfrm_min_char = '\0';
+ PL_strxfrm_NUL_replacement = '\0';
PL_strxfrm_max_cp = 0;
/* A locale collation definition includes primary, secondary, tertiary,
* This has the desired effect that strcmp() will look at the secondary
* or tertiary weights only if the strings compare equal at all higher
* priority weights. The spaces shown here, like in
- * "A¹B¹C¹ * A²B²C² "
+ * "A¹B¹C¹ A²B²C² "
* are not just for readability. In the general case, these must
* actually be bytes, which we will call here 'separator weights'; and
* they must be smaller than any other weight value, but since these
PL_collxfrm_base = base + 1;
}
-#ifdef DEBUGGING
+# ifdef DEBUGGING
+
if (DEBUG_L_TEST || debug_initialization) {
PerlIO_printf(Perl_debug_log,
- "%s:%d: ?UTF-8 locale=%d; x_len_shorter=%"UVuf", "
- "x_len_longer=%"UVuf","
- " collate multipler=%"UVuf", collate base=%"UVuf"\n",
+ "%s:%d: ?UTF-8 locale=%d; x_len_shorter=%zu, "
+ "x_len_longer=%zu,"
+ " collate multipler=%zu, collate base=%zu\n",
__FILE__, __LINE__,
PL_in_utf8_COLLATE_locale,
x_len_shorter, x_len_longer,
PL_collxfrm_mult, PL_collxfrm_base);
}
-#endif
+# endif
+
}
}
-#else
- PERL_UNUSED_ARG(newcoll);
#endif /* USE_LOCALE_COLLATE */
+
}
#ifdef WIN32
-char *
-Perl_my_setlocale(pTHX_ int category, const char* locale)
+STATIC char *
+S_win32_setlocale(pTHX_ int category, const char* locale)
{
/* This, for Windows, emulates POSIX setlocale() behavior. There is no
- * difference unless the input locale is "", which means on Windows to get
- * the machine default, which is set via the computer's "Regional and
- * Language Options" (or its current equivalent). In POSIX, it instead
- * means to find the locale from the user's environment. This routine
- * looks in the environment, and, if anything is found, uses that instead
- * of going to the machine default. If there is no environment override,
- * the machine default is used, as normal, by calling the real setlocale()
- * with "". The POSIX behavior is to use the LC_ALL variable if set;
- * otherwise to use the particular category's variable if set; otherwise to
- * use the LANG variable. */
+ * difference between the two unless the input locale is "", which normally
+ * means on Windows to get the machine default, which is set via the
+ * computer's "Regional and Language Options" (or its current equivalent).
+ * In POSIX, it instead means to find the locale from the user's
+ * environment. This routine changes the Windows behavior to first look in
+ * the environment, and, if anything is found, use that instead of going to
+ * the machine default. If there is no environment override, the machine
+ * default is used, by calling the real setlocale() with "".
+ *
+ * The POSIX behavior is to use the LC_ALL variable if set; otherwise to
+ * use the particular category's variable if set; otherwise to use the LANG
+ * variable. */
bool override_LC_ALL = FALSE;
char * result;
+ unsigned int i;
if (locale && strEQ(locale, "")) {
-# ifdef LC_ALL
+
+# ifdef LC_ALL
+
locale = PerlEnv_getenv("LC_ALL");
if (! locale) {
-#endif
- switch (category) {
-# ifdef LC_ALL
- case LC_ALL:
- override_LC_ALL = TRUE;
- break; /* We already know its variable isn't set */
-# endif
-# ifdef USE_LOCALE_TIME
- case LC_TIME:
- locale = PerlEnv_getenv("LC_TIME");
- break;
-# endif
-# ifdef USE_LOCALE_CTYPE
- case LC_CTYPE:
- locale = PerlEnv_getenv("LC_CTYPE");
- break;
-# endif
-# ifdef USE_LOCALE_COLLATE
- case LC_COLLATE:
- locale = PerlEnv_getenv("LC_COLLATE");
- break;
-# endif
-# ifdef USE_LOCALE_MONETARY
- case LC_MONETARY:
- locale = PerlEnv_getenv("LC_MONETARY");
- break;
-# endif
-# ifdef USE_LOCALE_NUMERIC
- case LC_NUMERIC:
- locale = PerlEnv_getenv("LC_NUMERIC");
- break;
-# endif
-# ifdef USE_LOCALE_MESSAGES
- case LC_MESSAGES:
- locale = PerlEnv_getenv("LC_MESSAGES");
- break;
-# endif
- default:
- /* This is a category, like PAPER_SIZE that we don't
- * know about; and so can't provide a wrapper. */
- break;
+ if (category == LC_ALL) {
+ override_LC_ALL = TRUE;
}
- if (! locale) {
+ else {
+
+# endif
+
+ for (i = 0; i < NOMINAL_LC_ALL_INDEX; i++) {
+ if (category == categories[i]) {
+ locale = PerlEnv_getenv(category_names[i]);
+ goto found_locale;
+ }
+ }
+
locale = PerlEnv_getenv("LANG");
if (! locale) {
locale = "";
}
+
+ found_locale: ;
+
+# ifdef LC_ALL
+
}
-# ifdef LC_ALL
}
-# endif
+
+# endif
+
}
result = setlocale(category, locale);
DEBUG_L(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n", __FILE__, __LINE__,
- _setlocale_debug_string(category, locale, result)));
+ setlocale_debug_string(category, locale, result)));
if (! override_LC_ALL) {
return result;
* lower priority than the other LC_foo variables, so override it for each
* one that is set. (If they are set to "", it means to use the same thing
* we just set LC_ALL to, so can skip) */
-# ifdef USE_LOCALE_TIME
- result = PerlEnv_getenv("LC_TIME");
- if (result && strNE(result, "")) {
- setlocale(LC_TIME, result);
- DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
- __FILE__, __LINE__,
- _setlocale_debug_string(LC_TIME, result, "not captured")));
- }
-# endif
-# ifdef USE_LOCALE_CTYPE
- result = PerlEnv_getenv("LC_CTYPE");
- if (result && strNE(result, "")) {
- setlocale(LC_CTYPE, result);
- DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
- __FILE__, __LINE__,
- _setlocale_debug_string(LC_CTYPE, result, "not captured")));
- }
-# endif
-# ifdef USE_LOCALE_COLLATE
- result = PerlEnv_getenv("LC_COLLATE");
- if (result && strNE(result, "")) {
- setlocale(LC_COLLATE, result);
- DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
- __FILE__, __LINE__,
- _setlocale_debug_string(LC_COLLATE, result, "not captured")));
- }
-# endif
-# ifdef USE_LOCALE_MONETARY
- result = PerlEnv_getenv("LC_MONETARY");
- if (result && strNE(result, "")) {
- setlocale(LC_MONETARY, result);
- DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
- __FILE__, __LINE__,
- _setlocale_debug_string(LC_MONETARY, result, "not captured")));
- }
-# endif
-# ifdef USE_LOCALE_NUMERIC
- result = PerlEnv_getenv("LC_NUMERIC");
- if (result && strNE(result, "")) {
- setlocale(LC_NUMERIC, result);
- DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
- __FILE__, __LINE__,
- _setlocale_debug_string(LC_NUMERIC, result, "not captured")));
- }
-# endif
-# ifdef USE_LOCALE_MESSAGES
- result = PerlEnv_getenv("LC_MESSAGES");
- if (result && strNE(result, "")) {
- setlocale(LC_MESSAGES, result);
- DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
- __FILE__, __LINE__,
- _setlocale_debug_string(LC_MESSAGES, result, "not captured")));
- }
-# endif
+
+ for (i = 0; i < LC_ALL_INDEX; i++) {
+ result = PerlEnv_getenv(category_names[i]);
+ if (result && strNE(result, "")) {
+ setlocale(categories[i], result);
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
+ __FILE__, __LINE__,
+ setlocale_debug_string(categories[i], result, "not captured")));
+ }
+ }
result = setlocale(LC_ALL, NULL);
DEBUG_L(PerlIO_printf(Perl_debug_log, "%s:%d: %s\n",
__FILE__, __LINE__,
- _setlocale_debug_string(LC_ALL, NULL, result)));
+ setlocale_debug_string(LC_ALL, NULL, result)));
return result;
}
#endif
-
-/*
- * Initialize locale awareness.
- */
-int
-Perl_init_i18nl10n(pTHX_ int printwarn)
+char *
+Perl_setlocale(int category, const char * locale)
{
- /* printwarn is
- *
- * 0 if not to output warning when setup locale is bad
- * 1 if to output warning based on value of PERL_BADLANG
- * >1 if to output regardless of PERL_BADLANG
- *
- * returns
- * 1 = set ok or not applicable,
- * 0 = fallback to a locale of lower priority
- * -1 = fallback to all locales failed, not even to the C locale
- *
- * Under -DDEBUGGING, if the environment variable PERL_DEBUG_LOCALE_INIT is
- * set, debugging information is output.
- *
- * This looks more complicated than it is, mainly due to the #ifdefs.
- *
- * We try to set LC_ALL to the value determined by the environment. If
- * there is no LC_ALL on this platform, we try the individual categories we
- * know about. If this works, we are done.
- *
- * But if it doesn't work, we have to do something else. We search the
- * environment variables ourselves instead of relying on the system to do
- * it. We look at, in order, LC_ALL, LANG, a system default locale (if we
- * think there is one), and the ultimate fallback "C". This is all done in
- * the same loop as above to avoid duplicating code, but it makes things
- * more complex. After the original failure, we add the fallback
- * possibilities to the list of locales to try, and iterate the loop
- * through them all until one succeeds.
- *
- * On Ultrix, the locale MUST come from the environment, so there is
- * preliminary code to set it. I (khw) am not sure that it is necessary,
- * and that this couldn't be folded into the loop, but barring any real
- * platforms to test on, it's staying as-is
- *
- * A slight complication is that in embedded Perls, the locale may already
- * be set-up, and we don't want to get it from the normal environment
- * variables. This is handled by having a special environment variable
- * indicate we're in this situation. We simply set setlocale's 2nd
- * parameter to be a NULL instead of "". That indicates to setlocale that
- * it is not to change anything, but to return the current value,
- * effectively initializing perl's db to what the locale already is.
- *
- * We play the same trick with NULL if a LC_ALL succeeds. We call
- * setlocale() on the individual categores with NULL to get their existing
- * values for our db, instead of trying to change them.
- * */
+ /* This wraps POSIX::setlocale() */
- int ok = 1;
+ char * retval;
+ char * newlocale;
+ dTHX;
-#if defined(USE_LOCALE)
-#ifdef USE_LOCALE_CTYPE
- char *curctype = NULL;
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- char *curcoll = NULL;
-#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE_NUMERIC
- char *curnum = NULL;
-#endif /* USE_LOCALE_NUMERIC */
-#ifdef __GLIBC__
- const char * const language = savepv(PerlEnv_getenv("LANGUAGE"));
-#endif
- /* NULL uses the existing already set up locale */
- const char * const setlocale_init = (PerlEnv_getenv("PERL_SKIP_LOCALE_INIT"))
- ? NULL
- : "";
- const char* trial_locales[5]; /* 5 = 1 each for "", LC_ALL, LANG, "", C */
- unsigned int trial_locales_count;
- const char * const lc_all = savepv(PerlEnv_getenv("LC_ALL"));
- const char * const lang = savepv(PerlEnv_getenv("LANG"));
- bool setlocale_failure = FALSE;
- unsigned int i;
- char *p;
+ /* A NULL locale means only query what the current one is. We
+ * have the LC_NUMERIC name saved, because we are normally switched
+ * into the C locale for it. Switch back so an LC_ALL query will yield
+ * the correct results; all other categories don't require special
+ * handling */
+ if (locale == NULL) {
+ if (category == LC_NUMERIC) {
+ return savepv(PL_numeric_name);
+ }
- /* A later getenv() could zap this, so only use here */
- const char * const bad_lang_use_once = PerlEnv_getenv("PERL_BADLANG");
+# ifdef LC_ALL
- const bool locwarn = (printwarn > 1
- || (printwarn
- && (! bad_lang_use_once
- || (
- /* disallow with "" or "0" */
- *bad_lang_use_once
- && strNE("0", bad_lang_use_once)))));
- bool done = FALSE;
- char * sl_result; /* return from setlocale() */
- char * locale_param;
-#ifdef WIN32
- /* In some systems you can find out the system default locale
- * and use that as the fallback locale. */
-# define SYSTEM_DEFAULT_LOCALE
-#endif
-#ifdef SYSTEM_DEFAULT_LOCALE
- const char *system_default_locale = NULL;
-#endif
+ else if (category == LC_ALL) {
+ SET_NUMERIC_UNDERLYING();
+ }
-#ifdef DEBUGGING
- DEBUG_INITIALIZATION_set((PerlEnv_getenv("PERL_DEBUG_LOCALE_INIT"))
- ? TRUE
- : FALSE);
-# define DEBUG_LOCALE_INIT(category, locale, result) \
- STMT_START { \
- if (debug_initialization) { \
+# endif
+
+ }
+
+#endif
+
+ /* Save retval since subsequent setlocale() calls may overwrite it. */
+ retval = savepv(do_setlocale_r(category, locale));
+
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "%s:%d: %s\n", __FILE__, __LINE__,
+ setlocale_debug_string(category, locale, retval)));
+ if (! retval) {
+ /* Should never happen that a query would return an error, but be
+ * sure and reset to C locale */
+ if (locale == 0) {
+ SET_NUMERIC_STANDARD();
+ }
+
+ return NULL;
+ }
+
+ /* If locale == NULL, we are just querying the state, but may have switched
+ * to NUMERIC_UNDERLYING. Switch back before returning. */
+ if (locale == NULL) {
+ SET_NUMERIC_STANDARD();
+ return retval;
+ }
+
+ /* Now that have switched locales, we have to update our records to
+ * correspond. */
+
+ switch (category) {
+
+#ifdef USE_LOCALE_CTYPE
+
+ case LC_CTYPE:
+ new_ctype(retval);
+ break;
+
+#endif
+#ifdef USE_LOCALE_COLLATE
+
+ case LC_COLLATE:
+ new_collate(retval);
+ break;
+
+#endif
+#ifdef USE_LOCALE_NUMERIC
+
+ case LC_NUMERIC:
+ new_numeric(retval);
+ break;
+
+#endif
+#ifdef LC_ALL
+
+ case LC_ALL:
+
+ /* LC_ALL updates all the things we care about. The values may not
+ * be the same as 'retval', as the locale "" may have set things
+ * individually */
+
+# ifdef USE_LOCALE_CTYPE
+
+ newlocale = do_setlocale_c(LC_CTYPE, NULL);
+ new_ctype(newlocale);
+
+# endif /* USE_LOCALE_CTYPE */
+# ifdef USE_LOCALE_COLLATE
+
+ newlocale = do_setlocale_c(LC_COLLATE, NULL);
+ new_collate(newlocale);
+
+# endif
+# ifdef USE_LOCALE_NUMERIC
+
+ newlocale = do_setlocale_c(LC_NUMERIC, NULL);
+ new_numeric(newlocale);
+
+# endif /* USE_LOCALE_NUMERIC */
+#endif /* LC_ALL */
+
+ default:
+ break;
+ }
+
+ return retval;
+
+
+}
+
+PERL_STATIC_INLINE const char *
+S_save_to_buffer(const char * string, char **buf, Size_t *buf_size, const Size_t offset)
+{
+ /* Copy the NUL-terminated 'string' to 'buf' + 'offset'. 'buf' has size 'buf_size',
+ * growing it if necessary */
+
+ const Size_t string_size = strlen(string) + offset + 1;
+
+ PERL_ARGS_ASSERT_SAVE_TO_BUFFER;
+
+ if (*buf_size == 0) {
+ Newx(*buf, string_size, char);
+ *buf_size = string_size;
+ }
+ else if (string_size > *buf_size) {
+ Renew(*buf, string_size, char);
+ *buf_size = string_size;
+ }
+
+ Copy(string, *buf + offset, string_size - offset, char);
+ return *buf;
+}
+
+/*
+
+=head1 Locale-related functions and macros
+
+=for apidoc Perl_langinfo
+
+This is an (almost ª) drop-in replacement for the system C<L<nl_langinfo(3)>>,
+taking the same C<item> parameter values, and returning the same information.
+But it is more thread-safe than regular C<nl_langinfo()>, and hides the quirks
+of Perl's locale handling from your code, and can be used on systems that lack
+a native C<nl_langinfo>.
+
+Expanding on these:
+
+=over
+
+=item *
+
+It delivers the correct results for the C<RADIXCHAR> and C<THOUSESEP> items,
+without you having to write extra code. The reason for the extra code would be
+because these are from the C<LC_NUMERIC> locale category, which is normally
+kept set to the C locale by Perl, no matter what the underlying locale is
+supposed to be, and so to get the expected results, you have to temporarily
+toggle into the underlying locale, and later toggle back. (You could use
+plain C<nl_langinfo> and C<L</STORE_LC_NUMERIC_FORCE_TO_UNDERLYING>> for this
+but then you wouldn't get the other advantages of C<Perl_langinfo()>; not
+keeping C<LC_NUMERIC> in the C locale would break a lot of CPAN, which is
+expecting the radix (decimal point) character to be a dot.)
+
+=item *
+
+Depending on C<item>, it works on systems that don't have C<nl_langinfo>, hence
+makes your code more portable. Of the fifty-some possible items specified by
+the POSIX 2008 standard,
+L<http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/langinfo.h.html>,
+only two are completely unimplemented. It uses various techniques to recover
+the other items, including calling C<L<localeconv(3)>>, and C<L<strftime(3)>>,
+both of which are specified in C89, so should be always be available. Later
+C<strftime()> versions have additional capabilities; C<""> is returned for
+those not available on your system.
+
+The details for those items which may differ from what this emulation returns
+and what a native C<nl_langinfo()> would return are:
+
+=over
+
+=item C<CODESET>
+
+=item C<ERA>
+
+Unimplemented, so returns C<"">.
+
+=item C<YESEXPR>
+
+=item C<NOEXPR>
+
+Only the values for English are returned. Earlier POSIX standards also
+specified C<YESSTR> and C<NOSTR>, but these have been removed from POSIX 2008,
+and aren't supported by C<Perl_langinfo>.
+
+=item C<D_FMT>
+
+Always evaluates to C<%x>, the locale's appropriate date representation.
+
+=item C<T_FMT>
+
+Always evaluates to C<%X>, the locale's appropriate time representation.
+
+=item C<D_T_FMT>
+
+Always evaluates to C<%c>, the locale's appropriate date and time
+representation.
+
+=item C<CRNCYSTR>
+
+The return may be incorrect for those rare locales where the currency symbol
+replaces the radix character.
+Send email to L<mailto:perlbug@perl.org> if you have examples of it needing
+to work differently.
+
+=item C<ALT_DIGITS>
+
+Currently this gives the same results as Linux does.
+Send email to L<mailto:perlbug@perl.org> if you have examples of it needing
+to work differently.
+
+=item C<ERA_D_FMT>
+
+=item C<ERA_T_FMT>
+
+=item C<ERA_D_T_FMT>
+
+=item C<T_FMT_AMPM>
+
+These are derived by using C<strftime()>, and not all versions of that function
+know about them. C<""> is returned for these on such systems.
+
+=back
+
+When using C<Perl_langinfo> on systems that don't have a native
+C<nl_langinfo()>, you must
+
+ #include "perl_langinfo.h"
+
+before the C<perl.h> C<#include>. You can replace your C<langinfo.h>
+C<#include> with this one. (Doing it this way keeps out the symbols that plain
+C<langinfo.h> imports into the namespace for code that doesn't need it.)
+
+You also should not use the bare C<langinfo.h> item names, but should preface
+them with C<PERL_>, so use C<PERL_RADIXCHAR> instead of plain C<RADIXCHAR>.
+The C<PERL_I<foo>> versions will also work for this function on systems that do
+have a native C<nl_langinfo>.
+
+=item *
+
+It is thread-friendly, returning its result in a buffer that won't be
+overwritten by another thread, so you don't have to code for that possibility.
+The buffer can be overwritten by the next call to C<nl_langinfo> or
+C<Perl_langinfo> in the same thread.
+
+=item *
+
+ª It returns S<C<const char *>>, whereas plain C<nl_langinfo()> returns S<C<char
+*>>, but you are (only by documentation) forbidden to write into the buffer.
+By declaring this C<const>, the compiler enforces this restriction. The extra
+C<const> is why this isn't an unequivocal drop-in replacement for
+C<nl_langinfo>.
+
+=back
+
+The original impetus for C<Perl_langinfo()> was so that code that needs to
+find out the current currency symbol, floating point radix character, or digit
+grouping separator can use, on all systems, the simpler and more
+thread-friendly C<nl_langinfo> API instead of C<L<localeconv(3)>> which is a
+pain to make thread-friendly. For other fields returned by C<localeconv>, it
+is better to use the methods given in L<perlcall> to call
+L<C<POSIX::localeconv()>|POSIX/localeconv>, which is thread-friendly.
+
+=cut
+
+*/
+
+const char *
+#ifdef HAS_NL_LANGINFO
+Perl_langinfo(const nl_item item)
+#else
+Perl_langinfo(const int item)
+#endif
+{
+ return my_nl_langinfo(item, TRUE);
+}
+
+const char *
+#ifdef HAS_NL_LANGINFO
+S_my_nl_langinfo(const nl_item item, bool toggle)
+#else
+S_my_nl_langinfo(const int item, bool toggle)
+#endif
+{
+ dTHX;
+
+#if defined(HAS_NL_LANGINFO) /* nl_langinfo() is available. */
+#if ! defined(HAS_POSIX_2008_LOCALE)
+
+ /* Here, use plain nl_langinfo(), switching to the underlying LC_NUMERIC
+ * for those items dependent on it. This must be copied to a buffer before
+ * switching back, as some systems destroy the buffer when setlocale() is
+ * called */
+
+ LOCALE_LOCK;
+
+ if (toggle) {
+ if (item == PERL_RADIXCHAR || item == PERL_THOUSEP) {
+ do_setlocale_c(LC_NUMERIC, PL_numeric_name);
+ }
+ else {
+ toggle = FALSE;
+ }
+ }
+
+ save_to_buffer(nl_langinfo(item), &PL_langinfo_buf, &PL_langinfo_bufsize, 0);
+
+ if (toggle) {
+ do_setlocale_c(LC_NUMERIC, "C");
+ }
+
+ LOCALE_UNLOCK;
+
+ return PL_langinfo_buf;
+
+# else /* Use nl_langinfo_l(), avoiding both a mutex and changing the locale */
+
+ bool do_free = FALSE;
+ locale_t cur = uselocale((locale_t) 0);
+
+ if (cur == LC_GLOBAL_LOCALE) {
+ cur = duplocale(LC_GLOBAL_LOCALE);
+ do_free = TRUE;
+ }
+
+ if ( toggle
+ && (item == PERL_RADIXCHAR || item == PERL_THOUSEP))
+ {
+ cur = newlocale(LC_NUMERIC_MASK, PL_numeric_name, cur);
+ do_free = TRUE;
+ }
+
+ save_to_buffer(nl_langinfo_l(item, cur),
+ &PL_langinfo_buf, &PL_langinfo_bufsize, 0);
+ if (do_free) {
+ freelocale(cur);
+ }
+
+ return PL_langinfo_buf;
+
+# endif
+#else /* Below, emulate nl_langinfo as best we can */
+# ifdef HAS_LOCALECONV
+
+ const struct lconv* lc;
+
+# endif
+# ifdef HAS_STRFTIME
+
+ struct tm tm;
+ bool return_format = FALSE; /* Return the %format, not the value */
+ const char * format;
+
+# endif
+
+ /* We copy the results to a per-thread buffer, even if not multi-threaded.
+ * This is in part to simplify this code, and partly because we need a
+ * buffer anyway for strftime(), and partly because a call of localeconv()
+ * could otherwise wipe out the buffer, and the programmer would not be
+ * expecting this, as this is a nl_langinfo() substitute after all, so s/he
+ * might be thinking their localeconv() is safe until another localeconv()
+ * call. */
+
+ switch (item) {
+ Size_t len;
+ const char * retval;
+
+ /* These 2 are unimplemented */
+ case PERL_CODESET:
+ case PERL_ERA: /* For use with strftime() %E modifier */
+
+ default:
+ return "";
+
+ /* We use only an English set, since we don't know any more */
+ case PERL_YESEXPR: return "^[+1yY]";
+ case PERL_NOEXPR: return "^[-0nN]";
+
+# ifdef HAS_LOCALECONV
+
+ case PERL_CRNCYSTR:
+
+ LOCALE_LOCK;
+
+ lc = localeconv();
+ if (! lc || ! lc->currency_symbol || strEQ("", lc->currency_symbol))
+ {
+ LOCALE_UNLOCK;
+ return "";
+ }
+
+ /* Leave the first spot empty to be filled in below */
+ save_to_buffer(lc->currency_symbol, &PL_langinfo_buf,
+ &PL_langinfo_bufsize, 1);
+ if (lc->mon_decimal_point && strEQ(lc->mon_decimal_point, ""))
+ { /* khw couldn't figure out how the localedef specifications
+ would show that the $ should replace the radix; this is
+ just a guess as to how it might work.*/
+ *PL_langinfo_buf = '.';
+ }
+ else if (lc->p_cs_precedes) {
+ *PL_langinfo_buf = '-';
+ }
+ else {
+ *PL_langinfo_buf = '+';
+ }
+
+ LOCALE_UNLOCK;
+ break;
+
+ case PERL_RADIXCHAR:
+ case PERL_THOUSEP:
+
+ LOCALE_LOCK;
+
+ if (toggle) {
+ do_setlocale_c(LC_NUMERIC, PL_numeric_name);
+ }
+
+ lc = localeconv();
+ if (! lc) {
+ retval = "";
+ }
+ else {
+ retval = (item == PERL_RADIXCHAR)
+ ? lc->decimal_point
+ : lc->thousands_sep;
+ if (! retval) {
+ retval = "";
+ }
+ }
+
+ save_to_buffer(retval, &PL_langinfo_buf, &PL_langinfo_bufsize, 0);
+
+ if (toggle) {
+ do_setlocale_c(LC_NUMERIC, "C");
+ }
+
+ LOCALE_UNLOCK;
+
+ break;
+
+# endif
+# ifdef HAS_STRFTIME
+
+ /* These are defined by C89, so we assume that strftime supports them,
+ * and so are returned unconditionally; they may not be what the locale
+ * actually says, but should give good enough results for someone using
+ * them as formats (as opposed to trying to parse them to figure out
+ * what the locale says). The other format items are actually tested to
+ * verify they work on the platform */
+ case PERL_D_FMT: return "%x";
+ case PERL_T_FMT: return "%X";
+ case PERL_D_T_FMT: return "%c";
+
+ /* These formats are only available in later strfmtime's */
+ case PERL_ERA_D_FMT: case PERL_ERA_T_FMT: case PERL_ERA_D_T_FMT:
+ case PERL_T_FMT_AMPM:
+
+ /* The rest can be gotten from most versions of strftime(). */
+ case PERL_ABDAY_1: case PERL_ABDAY_2: case PERL_ABDAY_3:
+ case PERL_ABDAY_4: case PERL_ABDAY_5: case PERL_ABDAY_6:
+ case PERL_ABDAY_7:
+ case PERL_ALT_DIGITS:
+ case PERL_AM_STR: case PERL_PM_STR:
+ case PERL_ABMON_1: case PERL_ABMON_2: case PERL_ABMON_3:
+ case PERL_ABMON_4: case PERL_ABMON_5: case PERL_ABMON_6:
+ case PERL_ABMON_7: case PERL_ABMON_8: case PERL_ABMON_9:
+ case PERL_ABMON_10: case PERL_ABMON_11: case PERL_ABMON_12:
+ case PERL_DAY_1: case PERL_DAY_2: case PERL_DAY_3: case PERL_DAY_4:
+ case PERL_DAY_5: case PERL_DAY_6: case PERL_DAY_7:
+ case PERL_MON_1: case PERL_MON_2: case PERL_MON_3: case PERL_MON_4:
+ case PERL_MON_5: case PERL_MON_6: case PERL_MON_7: case PERL_MON_8:
+ case PERL_MON_9: case PERL_MON_10: case PERL_MON_11: case PERL_MON_12:
+
+ LOCALE_LOCK;
+
+ init_tm(&tm); /* Precaution against core dumps */
+ tm.tm_sec = 30;
+ tm.tm_min = 30;
+ tm.tm_hour = 6;
+ tm.tm_year = 2017 - 1900;
+ tm.tm_wday = 0;
+ tm.tm_mon = 0;
+ switch (item) {
+ default:
+ LOCALE_UNLOCK;
+ Perl_croak(aTHX_ "panic: %s: %d: switch case: %d problem",
+ __FILE__, __LINE__, item);
+ NOT_REACHED; /* NOTREACHED */
+
+ case PERL_PM_STR: tm.tm_hour = 18;
+ case PERL_AM_STR:
+ format = "%p";
+ break;
+
+ case PERL_ABDAY_7: tm.tm_wday++;
+ case PERL_ABDAY_6: tm.tm_wday++;
+ case PERL_ABDAY_5: tm.tm_wday++;
+ case PERL_ABDAY_4: tm.tm_wday++;
+ case PERL_ABDAY_3: tm.tm_wday++;
+ case PERL_ABDAY_2: tm.tm_wday++;
+ case PERL_ABDAY_1:
+ format = "%a";
+ break;
+
+ case PERL_DAY_7: tm.tm_wday++;
+ case PERL_DAY_6: tm.tm_wday++;
+ case PERL_DAY_5: tm.tm_wday++;
+ case PERL_DAY_4: tm.tm_wday++;
+ case PERL_DAY_3: tm.tm_wday++;
+ case PERL_DAY_2: tm.tm_wday++;
+ case PERL_DAY_1:
+ format = "%A";
+ break;
+
+ case PERL_ABMON_12: tm.tm_mon++;
+ case PERL_ABMON_11: tm.tm_mon++;
+ case PERL_ABMON_10: tm.tm_mon++;
+ case PERL_ABMON_9: tm.tm_mon++;
+ case PERL_ABMON_8: tm.tm_mon++;
+ case PERL_ABMON_7: tm.tm_mon++;
+ case PERL_ABMON_6: tm.tm_mon++;
+ case PERL_ABMON_5: tm.tm_mon++;
+ case PERL_ABMON_4: tm.tm_mon++;
+ case PERL_ABMON_3: tm.tm_mon++;
+ case PERL_ABMON_2: tm.tm_mon++;
+ case PERL_ABMON_1:
+ format = "%b";
+ break;
+
+ case PERL_MON_12: tm.tm_mon++;
+ case PERL_MON_11: tm.tm_mon++;
+ case PERL_MON_10: tm.tm_mon++;
+ case PERL_MON_9: tm.tm_mon++;
+ case PERL_MON_8: tm.tm_mon++;
+ case PERL_MON_7: tm.tm_mon++;
+ case PERL_MON_6: tm.tm_mon++;
+ case PERL_MON_5: tm.tm_mon++;
+ case PERL_MON_4: tm.tm_mon++;
+ case PERL_MON_3: tm.tm_mon++;
+ case PERL_MON_2: tm.tm_mon++;
+ case PERL_MON_1:
+ format = "%B";
+ break;
+
+ case PERL_T_FMT_AMPM:
+ format = "%r";
+ return_format = TRUE;
+ break;
+
+ case PERL_ERA_D_FMT:
+ format = "%Ex";
+ return_format = TRUE;
+ break;
+
+ case PERL_ERA_T_FMT:
+ format = "%EX";
+ return_format = TRUE;
+ break;
+
+ case PERL_ERA_D_T_FMT:
+ format = "%Ec";
+ return_format = TRUE;
+ break;
+
+ case PERL_ALT_DIGITS:
+ tm.tm_wday = 0;
+ format = "%Ow"; /* Find the alternate digit for 0 */
+ break;
+ }
+
+ /* We can't use my_strftime() because it doesn't look at tm_wday */
+ while (0 == strftime(PL_langinfo_buf, PL_langinfo_bufsize,
+ format, &tm))
+ {
+ /* A zero return means one of:
+ * a) there wasn't enough space in PL_langinfo_buf
+ * b) the format, like a plain %p, returns empty
+ * c) it was an illegal format, though some implementations of
+ * strftime will just return the illegal format as a plain
+ * character sequence.
+ *
+ * To quickly test for case 'b)', try again but precede the
+ * format with a plain character. If that result is still
+ * empty, the problem is either 'a)' or 'c)' */
+
+ Size_t format_size = strlen(format) + 1;
+ Size_t mod_size = format_size + 1;
+ char * mod_format;
+ char * temp_result;
+
+ Newx(mod_format, mod_size, char);
+ Newx(temp_result, PL_langinfo_bufsize, char);
+ *mod_format = '\a';
+ my_strlcpy(mod_format + 1, format, mod_size);
+ len = strftime(temp_result,
+ PL_langinfo_bufsize,
+ mod_format, &tm);
+ Safefree(mod_format);
+ Safefree(temp_result);
+
+ /* If 'len' is non-zero, it means that we had a case like %p
+ * which means the current locale doesn't use a.m. or p.m., and
+ * that is valid */
+ if (len == 0) {
+
+ /* Here, still didn't work. If we get well beyond a
+ * reasonable size, bail out to prevent an infinite loop. */
+
+ if (PL_langinfo_bufsize > 100 * format_size) {
+ *PL_langinfo_buf = '\0';
+ }
+ else { /* Double the buffer size to retry; Add 1 in case
+ original was 0, so we aren't stuck at 0. */
+ PL_langinfo_bufsize *= 2;
+ PL_langinfo_bufsize++;
+ Renew(PL_langinfo_buf, PL_langinfo_bufsize, char);
+ continue;
+ }
+ }
+
+ break;
+ }
+
+ /* Here, we got a result.
+ *
+ * If the item is 'ALT_DIGITS', PL_langinfo_buf contains the
+ * alternate format for wday 0. If the value is the same as the
+ * normal 0, there isn't an alternate, so clear the buffer. */
+ if ( item == PERL_ALT_DIGITS
+ && strEQ(PL_langinfo_buf, "0"))
+ {
+ *PL_langinfo_buf = '\0';
+ }
+
+ /* ALT_DIGITS is problematic. Experiments on it showed that
+ * strftime() did not always work properly when going from alt-9 to
+ * alt-10. Only a few locales have this item defined, and in all
+ * of them on Linux that khw was able to find, nl_langinfo() merely
+ * returned the alt-0 character, possibly doubled. Most Unicode
+ * digits are in blocks of 10 consecutive code points, so that is
+ * sufficient information for those scripts, as we can infer alt-1,
+ * alt-2, .... But for a Japanese locale, a CJK ideographic 0 is
+ * returned, and the CJK digits are not in code point order, so you
+ * can't really infer anything. The localedef for this locale did
+ * specify the succeeding digits, so that strftime() works properly
+ * on them, without needing to infer anything. But the
+ * nl_langinfo() return did not give sufficient information for the
+ * caller to understand what's going on. So until there is
+ * evidence that it should work differently, this returns the alt-0
+ * string for ALT_DIGITS.
+ *
+ * wday was chosen because its range is all a single digit. Things
+ * like tm_sec have two digits as the minimum: '00' */
+
+ LOCALE_UNLOCK;
+
+ /* If to return the format, not the value, overwrite the buffer
+ * with it. But some strftime()s will keep the original format if
+ * illegal, so change those to "" */
+ if (return_format) {
+ if (strEQ(PL_langinfo_buf, format)) {
+ *PL_langinfo_buf = '\0';
+ }
+ else {
+ save_to_buffer(format, &PL_langinfo_buf,
+ &PL_langinfo_bufsize, 0);
+ }
+ }
+
+ break;
+
+# endif
+
+ }
+
+ return PL_langinfo_buf;
+
+#endif
+
+}
+
+/*
+ * Initialize locale awareness.
+ */
+int
+Perl_init_i18nl10n(pTHX_ int printwarn)
+{
+ /* printwarn is
+ *
+ * 0 if not to output warning when setup locale is bad
+ * 1 if to output warning based on value of PERL_BADLANG
+ * >1 if to output regardless of PERL_BADLANG
+ *
+ * returns
+ * 1 = set ok or not applicable,
+ * 0 = fallback to a locale of lower priority
+ * -1 = fallback to all locales failed, not even to the C locale
+ *
+ * Under -DDEBUGGING, if the environment variable PERL_DEBUG_LOCALE_INIT is
+ * set, debugging information is output.
+ *
+ * This looks more complicated than it is, mainly due to the #ifdefs.
+ *
+ * We try to set LC_ALL to the value determined by the environment. If
+ * there is no LC_ALL on this platform, we try the individual categories we
+ * know about. If this works, we are done.
+ *
+ * But if it doesn't work, we have to do something else. We search the
+ * environment variables ourselves instead of relying on the system to do
+ * it. We look at, in order, LC_ALL, LANG, a system default locale (if we
+ * think there is one), and the ultimate fallback "C". This is all done in
+ * the same loop as above to avoid duplicating code, but it makes things
+ * more complex. The 'trial_locales' array is initialized with just one
+ * element; it causes the behavior described in the paragraph above this to
+ * happen. If that fails, we add elements to 'trial_locales', and do extra
+ * loop iterations to cause the behavior described in this paragraph.
+ *
+ * On Ultrix, the locale MUST come from the environment, so there is
+ * preliminary code to set it. I (khw) am not sure that it is necessary,
+ * and that this couldn't be folded into the loop, but barring any real
+ * platforms to test on, it's staying as-is
+ *
+ * A slight complication is that in embedded Perls, the locale may already
+ * be set-up, and we don't want to get it from the normal environment
+ * variables. This is handled by having a special environment variable
+ * indicate we're in this situation. We simply set setlocale's 2nd
+ * parameter to be a NULL instead of "". That indicates to setlocale that
+ * it is not to change anything, but to return the current value,
+ * effectively initializing perl's db to what the locale already is.
+ *
+ * We play the same trick with NULL if a LC_ALL succeeds. We call
+ * setlocale() on the individual categores with NULL to get their existing
+ * values for our db, instead of trying to change them.
+ * */
+
+ int ok = 1;
+
+#ifndef USE_LOCALE
+
+ PERL_UNUSED_ARG(printwarn);
+
+#else /* USE_LOCALE */
+# ifdef __GLIBC__
+
+ const char * const language = savepv(PerlEnv_getenv("LANGUAGE"));
+
+# endif
+
+ /* NULL uses the existing already set up locale */
+ const char * const setlocale_init = (PerlEnv_getenv("PERL_SKIP_LOCALE_INIT"))
+ ? NULL
+ : "";
+ const char* trial_locales[5]; /* 5 = 1 each for "", LC_ALL, LANG, "", C */
+ unsigned int trial_locales_count;
+ const char * const lc_all = savepv(PerlEnv_getenv("LC_ALL"));
+ const char * const lang = savepv(PerlEnv_getenv("LANG"));
+ bool setlocale_failure = FALSE;
+ unsigned int i;
+
+ /* A later getenv() could zap this, so only use here */
+ const char * const bad_lang_use_once = PerlEnv_getenv("PERL_BADLANG");
+
+ const bool locwarn = (printwarn > 1
+ || ( printwarn
+ && ( ! bad_lang_use_once
+ || (
+ /* disallow with "" or "0" */
+ *bad_lang_use_once
+ && strNE("0", bad_lang_use_once)))));
+ bool done = FALSE;
+ char * sl_result[NOMINAL_LC_ALL_INDEX + 1]; /* setlocale() return vals;
+ not copied so must be
+ looked at immediately */
+ char * curlocales[NOMINAL_LC_ALL_INDEX + 1]; /* current locale for given
+ category; should have been
+ copied so aren't volatile
+ */
+ char * locale_param;
+
+# ifdef WIN32
+
+ /* In some systems you can find out the system default locale
+ * and use that as the fallback locale. */
+# define SYSTEM_DEFAULT_LOCALE
+# endif
+# ifdef SYSTEM_DEFAULT_LOCALE
+
+ const char *system_default_locale = NULL;
+
+# endif
+
+# ifndef DEBUGGING
+# define DEBUG_LOCALE_INIT(a,b,c)
+# else
+
+ DEBUG_INITIALIZATION_set(cBOOL(PerlEnv_getenv("PERL_DEBUG_LOCALE_INIT")));
+
+# define DEBUG_LOCALE_INIT(category, locale, result) \
+ STMT_START { \
+ if (debug_initialization) { \
PerlIO_printf(Perl_debug_log, \
"%s:%d: %s\n", \
__FILE__, __LINE__, \
- _setlocale_debug_string(category, \
+ setlocale_debug_string(category, \
locale, \
result)); \
} \
} STMT_END
-#else
-# define DEBUG_LOCALE_INIT(a,b,c)
-#endif
-#ifndef LOCALE_ENVIRON_REQUIRED
+/* Make sure the parallel arrays are properly set up */
+# ifdef USE_LOCALE_NUMERIC
+ assert(categories[LC_NUMERIC_INDEX] == LC_NUMERIC);
+ assert(strEQ(category_names[LC_NUMERIC_INDEX], "LC_NUMERIC"));
+# endif
+# ifdef USE_LOCALE_CTYPE
+ assert(categories[LC_CTYPE_INDEX] == LC_CTYPE);
+ assert(strEQ(category_names[LC_CTYPE_INDEX], "LC_CTYPE"));
+# endif
+# ifdef USE_LOCALE_COLLATE
+ assert(categories[LC_COLLATE_INDEX] == LC_COLLATE);
+ assert(strEQ(category_names[LC_COLLATE_INDEX], "LC_COLLATE"));
+# endif
+# ifdef USE_LOCALE_TIME
+ assert(categories[LC_TIME_INDEX] == LC_TIME);
+ assert(strEQ(category_names[LC_TIME_INDEX], "LC_TIME"));
+# endif
+# ifdef USE_LOCALE_MESSAGES
+ assert(categories[LC_MESSAGES_INDEX] == LC_MESSAGES);
+ assert(strEQ(category_names[LC_MESSAGES_INDEX], "LC_MESSAGES"));
+# endif
+# ifdef USE_LOCALE_MONETARY
+ assert(categories[LC_MONETARY_INDEX] == LC_MONETARY);
+ assert(strEQ(category_names[LC_MONETARY_INDEX], "LC_MONETARY"));
+# endif
+# ifdef LC_ALL
+ assert(categories[LC_ALL_INDEX] == LC_ALL);
+ assert(strEQ(category_names[LC_ALL_INDEX], "LC_ALL"));
+ assert(NOMINAL_LC_ALL_INDEX == LC_ALL_INDEX);
+# endif
+# endif /* DEBUGGING */
+# ifndef LOCALE_ENVIRON_REQUIRED
+
PERL_UNUSED_VAR(done);
PERL_UNUSED_VAR(locale_param);
-#else
+
+# else
/*
* Ultrix setlocale(..., "") fails if there are no environment
* variables from which to get a locale name.
*/
-# ifdef LC_ALL
+# ifdef LC_ALL
+
if (lang) {
- sl_result = my_setlocale(LC_ALL, setlocale_init);
- DEBUG_LOCALE_INIT(LC_ALL, setlocale_init, sl_result);
- if (sl_result)
+ sl_result[LC_ALL_INDEX] = do_setlocale_c(LC_ALL, setlocale_init);
+ DEBUG_LOCALE_INIT(LC_ALL, setlocale_init, sl_result[LC_ALL_INDEX]);
+ if (sl_result[LC_ALL_INDEX])
done = TRUE;
else
setlocale_failure = TRUE;
}
if (! setlocale_failure) {
-# ifdef USE_LOCALE_CTYPE
- locale_param = (! done && (lang || PerlEnv_getenv("LC_CTYPE")))
- ? setlocale_init
- : NULL;
- curctype = my_setlocale(LC_CTYPE, locale_param);
- DEBUG_LOCALE_INIT(LC_CTYPE, locale_param, sl_result);
- if (! curctype)
- setlocale_failure = TRUE;
- else
- curctype = savepv(curctype);
-# endif /* USE_LOCALE_CTYPE */
-# ifdef USE_LOCALE_COLLATE
- locale_param = (! done && (lang || PerlEnv_getenv("LC_COLLATE")))
- ? setlocale_init
- : NULL;
- curcoll = my_setlocale(LC_COLLATE, locale_param);
- DEBUG_LOCALE_INIT(LC_COLLATE, locale_param, sl_result);
- if (! curcoll)
- setlocale_failure = TRUE;
- else
- curcoll = savepv(curcoll);
-# endif /* USE_LOCALE_COLLATE */
-# ifdef USE_LOCALE_NUMERIC
- locale_param = (! done && (lang || PerlEnv_getenv("LC_NUMERIC")))
- ? setlocale_init
- : NULL;
- curnum = my_setlocale(LC_NUMERIC, locale_param);
- DEBUG_LOCALE_INIT(LC_NUMERIC, locale_param, sl_result);
- if (! curnum)
- setlocale_failure = TRUE;
- else
- curnum = savepv(curnum);
-# endif /* USE_LOCALE_NUMERIC */
-# ifdef USE_LOCALE_MESSAGES
- locale_param = (! done && (lang || PerlEnv_getenv("LC_MESSAGES")))
- ? setlocale_init
- : NULL;
- sl_result = my_setlocale(LC_MESSAGES, locale_param);
- DEBUG_LOCALE_INIT(LC_MESSAGES, locale_param, sl_result);
- if (! sl_result)
- setlocale_failure = TRUE;
- }
-# endif /* USE_LOCALE_MESSAGES */
-# ifdef USE_LOCALE_MONETARY
- locale_param = (! done && (lang || PerlEnv_getenv("LC_MONETARY")))
- ? setlocale_init
- : NULL;
- sl_result = my_setlocale(LC_MONETARY, locale_param);
- DEBUG_LOCALE_INIT(LC_MONETARY, locale_param, sl_result);
- if (! sl_result) {
- setlocale_failure = TRUE;
+ for (i = 0; i < LC_ALL_INDEX; i++) {
+ locale_param = (! done && (lang || PerlEnv_getenv(category_names[i])))
+ ? setlocale_init
+ : NULL;
+ sl_result[i] = do_setlocale_r(categories[i], locale_param);
+ if (! sl_result[i]) {
+ setlocale_failure = TRUE;
+ }
+ DEBUG_LOCALE_INIT(categories[i], locale_param, sl_result[i]);
}
-# endif /* USE_LOCALE_MONETARY */
}
-# endif /* LC_ALL */
-
-#endif /* !LOCALE_ENVIRON_REQUIRED */
+# endif /* LC_ALL */
+# endif /* LOCALE_ENVIRON_REQUIRED */
/* We try each locale in the list until we get one that works, or exhaust
* the list. Normally the loop is executed just once. But if setting the
* will execute the loop multiple times */
trial_locales[0] = setlocale_init;
trial_locales_count = 1;
+
for (i= 0; i < trial_locales_count; i++) {
const char * trial_locale = trial_locales[i];
* sense */
setlocale_failure = FALSE;
-#ifdef SYSTEM_DEFAULT_LOCALE
-# ifdef WIN32
+# ifdef SYSTEM_DEFAULT_LOCALE
+# ifdef WIN32
+
/* On Windows machines, an entry of "" after the 0th means to use
* the system default locale, which we now proceed to get. */
if (strEQ(trial_locale, "")) {
/* Note that this may change the locale, but we are going to do
* that anyway just below */
- system_default_locale = setlocale(LC_ALL, "");
+ system_default_locale = do_setlocale_c(LC_ALL, "");
DEBUG_LOCALE_INIT(LC_ALL, "", system_default_locale);
- /* Skip if invalid or it's already on the list of locales to
+ /* Skip if invalid or if it's already on the list of locales to
* try */
if (! system_default_locale) {
goto next_iteration;
trial_locale = system_default_locale;
}
-# endif /* WIN32 */
-#endif /* SYSTEM_DEFAULT_LOCALE */
+# endif /* WIN32 */
+# endif /* SYSTEM_DEFAULT_LOCALE */
}
-#ifdef LC_ALL
- sl_result = my_setlocale(LC_ALL, trial_locale);
- DEBUG_LOCALE_INIT(LC_ALL, trial_locale, sl_result);
- if (! sl_result) {
+# ifdef LC_ALL
+
+ sl_result[LC_ALL_INDEX] = do_setlocale_c(LC_ALL, trial_locale);
+ DEBUG_LOCALE_INIT(LC_ALL, trial_locale, sl_result[LC_ALL_INDEX]);
+ if (! sl_result[LC_ALL_INDEX]) {
setlocale_failure = TRUE;
}
else {
* setlocales below just return their category's current values.
* This adequately handles the case in NetBSD where LC_COLLATE may
* not be defined for a locale, and setting it individually will
- * fail, whereas setting LC_ALL suceeds, leaving LC_COLLATE set to
+ * fail, whereas setting LC_ALL succeeds, leaving LC_COLLATE set to
* the POSIX locale. */
trial_locale = NULL;
}
-#endif /* LC_ALL */
- if (!setlocale_failure) {
-#ifdef USE_LOCALE_CTYPE
- Safefree(curctype);
- curctype = my_setlocale(LC_CTYPE, trial_locale);
- DEBUG_LOCALE_INIT(LC_CTYPE, trial_locale, curctype);
- if (! curctype)
- setlocale_failure = TRUE;
- else
- curctype = savepv(curctype);
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- Safefree(curcoll);
- curcoll = my_setlocale(LC_COLLATE, trial_locale);
- DEBUG_LOCALE_INIT(LC_COLLATE, trial_locale, curcoll);
- if (! curcoll)
- setlocale_failure = TRUE;
- else
- curcoll = savepv(curcoll);
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- Safefree(curnum);
- curnum = my_setlocale(LC_NUMERIC, trial_locale);
- DEBUG_LOCALE_INIT(LC_NUMERIC, trial_locale, curnum);
- if (! curnum)
- setlocale_failure = TRUE;
- else
- curnum = savepv(curnum);
-#endif /* USE_LOCALE_NUMERIC */
-#ifdef USE_LOCALE_MESSAGES
- sl_result = my_setlocale(LC_MESSAGES, trial_locale);
- DEBUG_LOCALE_INIT(LC_MESSAGES, trial_locale, sl_result);
- if (! (sl_result))
- setlocale_failure = TRUE;
-#endif /* USE_LOCALE_MESSAGES */
-#ifdef USE_LOCALE_MONETARY
- sl_result = my_setlocale(LC_MONETARY, trial_locale);
- DEBUG_LOCALE_INIT(LC_MONETARY, trial_locale, sl_result);
- if (! (sl_result))
- setlocale_failure = TRUE;
-#endif /* USE_LOCALE_MONETARY */
+# endif /* LC_ALL */
- if (! setlocale_failure) { /* Success */
- break;
+ if (! setlocale_failure) {
+ unsigned int j;
+ for (j = 0; j < NOMINAL_LC_ALL_INDEX; j++) {
+ curlocales[j]
+ = savepv(do_setlocale_r(categories[j], trial_locale));
+ if (! curlocales[j]) {
+ setlocale_failure = TRUE;
+ }
+ DEBUG_LOCALE_INIT(categories[j], trial_locale, curlocales[j]);
+ }
+
+ if (! setlocale_failure) { /* All succeeded */
+ break; /* Exit trial_locales loop */
}
}
unsigned int j;
if (locwarn) { /* Output failure info only on the first one */
-#ifdef LC_ALL
+
+# ifdef LC_ALL
PerlIO_printf(Perl_error_log,
"perl: warning: Setting locale failed.\n");
-#else /* !LC_ALL */
+# else /* !LC_ALL */
PerlIO_printf(Perl_error_log,
"perl: warning: Setting locale failed for the categories:\n\t");
-# ifdef USE_LOCALE_CTYPE
- if (! curctype)
- PerlIO_printf(Perl_error_log, "LC_CTYPE ");
-# endif /* USE_LOCALE_CTYPE */
-# ifdef USE_LOCALE_COLLATE
- if (! curcoll)
- PerlIO_printf(Perl_error_log, "LC_COLLATE ");
-# endif /* USE_LOCALE_COLLATE */
-# ifdef USE_LOCALE_NUMERIC
- if (! curnum)
- PerlIO_printf(Perl_error_log, "LC_NUMERIC ");
-# endif /* USE_LOCALE_NUMERIC */
+
+ for (j = 0; j < NOMINAL_LC_ALL_INDEX; j++) {
+ if (! curlocales[j]) {
+ PerlIO_printf(Perl_error_log, category_names[j]);
+ }
+ else {
+ Safefree(curlocales[j]);
+ }
+ }
+
PerlIO_printf(Perl_error_log, "and possibly others\n");
-#endif /* LC_ALL */
+# endif /* LC_ALL */
PerlIO_printf(Perl_error_log,
"perl: warning: Please check that your locale settings:\n");
-#ifdef __GLIBC__
+# ifdef __GLIBC__
+
PerlIO_printf(Perl_error_log,
"\tLANGUAGE = %c%s%c,\n",
language ? '"' : '(',
language ? language : "unset",
language ? '"' : ')');
-#endif
+# endif
PerlIO_printf(Perl_error_log,
"\tLC_ALL = %c%s%c,\n",
lc_all ? lc_all : "unset",
lc_all ? '"' : ')');
-#if defined(USE_ENVIRON_ARRAY)
+# if defined(USE_ENVIRON_ARRAY)
+
{
- char **e;
- for (e = environ; *e; e++) {
- if (strnEQ(*e, "LC_", 3)
- && strnNE(*e, "LC_ALL=", 7)
- && (p = strchr(*e, '=')))
- PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n",
- (int)(p - *e), *e, p + 1);
- }
+ char **e;
+
+ /* Look through the environment for any variables of the
+ * form qr/ ^ LC_ [A-Z]+ = /x, except LC_ALL which was
+ * already handled above. These are assumed to be locale
+ * settings. Output them and their values. */
+ for (e = environ; *e; e++) {
+ const STRLEN prefix_len = sizeof("LC_") - 1;
+ STRLEN uppers_len;
+
+ if ( strBEGINs(*e, "LC_")
+ && ! strBEGINs(*e, "LC_ALL=")
+ && (uppers_len = strspn(*e + prefix_len,
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
+ && ((*e)[prefix_len + uppers_len] == '='))
+ {
+ PerlIO_printf(Perl_error_log, "\t%.*s = \"%s\",\n",
+ (int) (prefix_len + uppers_len), *e,
+ *e + prefix_len + uppers_len + 1);
+ }
+ }
}
-#else
+
+# else
+
PerlIO_printf(Perl_error_log,
"\t(possibly more locale environment variables)\n");
-#endif
+
+# endif
PerlIO_printf(Perl_error_log,
"\tLANG = %c%s%c\n",
}
done_lang:
-#if defined(WIN32) && defined(LC_ALL)
+# if defined(WIN32) && defined(LC_ALL)
+
/* For Windows, we also try the system default locale before "C".
* (If there exists a Windows without LC_ALL we skip this because
* it gets too complicated. For those, the "C" is the next
* the array, but the code at the loop above knows to treat it
* differently when not the 0th */
trial_locales[trial_locales_count++] = "";
-#endif
+
+# endif
for (j = 0; j < trial_locales_count; j++) {
if (strEQ("C", trial_locales[j])) {
done_C: ;
} /* end of first time through the loop */
-#ifdef WIN32
+# ifdef WIN32
+
next_iteration: ;
-#endif
+
+# endif
} /* end of looping through the trial locales */
msg = "Falling back to";
}
else { /* fallback failed */
+ unsigned int j;
/* We dropped off the end of the loop, so have to decrement i to
* get back to the value the last time through */
msg = "Failed to fall back to";
/* To continue, we should use whatever values we've got */
-#ifdef USE_LOCALE_CTYPE
- Safefree(curctype);
- curctype = savepv(setlocale(LC_CTYPE, NULL));
- DEBUG_LOCALE_INIT(LC_CTYPE, NULL, curctype);
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- Safefree(curcoll);
- curcoll = savepv(setlocale(LC_COLLATE, NULL));
- DEBUG_LOCALE_INIT(LC_COLLATE, NULL, curcoll);
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- Safefree(curnum);
- curnum = savepv(setlocale(LC_NUMERIC, NULL));
- DEBUG_LOCALE_INIT(LC_NUMERIC, NULL, curnum);
-#endif /* USE_LOCALE_NUMERIC */
+
+ for (j = 0; j < NOMINAL_LC_ALL_INDEX; j++) {
+ Safefree(curlocales[j]);
+ curlocales[j] = savepv(do_setlocale_r(categories[j], NULL));
+ DEBUG_LOCALE_INIT(categories[j], NULL, curlocales[j]);
+ }
}
if (locwarn) {
description = "the standard locale";
name = "C";
}
-#ifdef SYSTEM_DEFAULT_LOCALE
+
+# ifdef SYSTEM_DEFAULT_LOCALE
+
else if (strEQ(trial_locales[i], "")) {
description = "the system default locale";
if (system_default_locale) {
name = system_default_locale;
}
}
-#endif /* SYSTEM_DEFAULT_LOCALE */
+
+# endif /* SYSTEM_DEFAULT_LOCALE */
+
else {
description = "a fallback locale";
name = trial_locales[i];
}
} /* End of tried to fallback */
-#ifdef USE_LOCALE_CTYPE
- new_ctype(curctype);
-#endif /* USE_LOCALE_CTYPE */
+ /* Done with finding the locales; update our records */
+
+# ifdef USE_LOCALE_CTYPE
+
+ new_ctype(curlocales[LC_CTYPE_INDEX]);
+
+# endif
+# ifdef USE_LOCALE_COLLATE
+
+ new_collate(curlocales[LC_COLLATE_INDEX]);
+
+# endif
+# ifdef USE_LOCALE_NUMERIC
-#ifdef USE_LOCALE_COLLATE
- new_collate(curcoll);
-#endif /* USE_LOCALE_COLLATE */
+ new_numeric(curlocales[LC_NUMERIC_INDEX]);
-#ifdef USE_LOCALE_NUMERIC
- new_numeric(curnum);
-#endif /* USE_LOCALE_NUMERIC */
+# endif
+
+
+ for (i = 0; i < NOMINAL_LC_ALL_INDEX; i++) {
+ Safefree(curlocales[i]);
+ }
+
+# if defined(USE_PERLIO) && defined(USE_LOCALE_CTYPE)
-#if defined(USE_PERLIO) && defined(USE_LOCALE_CTYPE)
/* Set PL_utf8locale to TRUE if using PerlIO _and_ the current LC_CTYPE
* locale is UTF-8. If PL_utf8locale and PL_unicode (set by -C or by
* $ENV{PERL_UNICODE}) are true, perl.c:S_parse_body() will turn on the
if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG)
PL_utf8cache = -1;
}
-#endif
-#ifdef USE_LOCALE_CTYPE
- Safefree(curctype);
-#endif /* USE_LOCALE_CTYPE */
-#ifdef USE_LOCALE_COLLATE
- Safefree(curcoll);
-#endif /* USE_LOCALE_COLLATE */
-#ifdef USE_LOCALE_NUMERIC
- Safefree(curnum);
-#endif /* USE_LOCALE_NUMERIC */
+# endif
+# ifdef __GLIBC__
-#ifdef __GLIBC__
Safefree(language);
-#endif
+
+# endif
Safefree(lc_all);
Safefree(lang);
-#else /* !USE_LOCALE */
- PERL_UNUSED_ARG(printwarn);
#endif /* USE_LOCALE */
-
#ifdef DEBUGGING
+
/* So won't continue to output stuff */
DEBUG_INITIALIZATION_set(FALSE);
+
#endif
return ok;
/* If this locale has defective collation, skip */
if (PL_collxfrm_base == 0 && PL_collxfrm_mult == 0) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: locale's collation is defective\n"));
goto bad;
}
* This will give as good as possible results on strings that don't
* otherwise contain that character, but otherwise there may be
* less-than-perfect results with that character and NUL. This is
- * unavoidable unless we replace strxfrm with our own implementation.
- *
- * XXX This code may be overkill. khw wrote it before realizing that if
- * you change a NUL into some other character, that that may change the
- * strxfrm results if that character is part of a sequence with other
- * characters for weight calculations. To minimize the chances of this,
- * now the replacement is restricted to another control (likely to be
- * \001). But the full generality has been retained.
- *
- * This is one of the few places in the perl core, where we can use
- * standard functions like strlen() and strcat(). It's because we're
- * looking for NULs. */
- if (s_strlen < len) {
+ * unavoidable unless we replace strxfrm with our own implementation. */
+ if (UNLIKELY(s_strlen < len)) { /* Only execute if there is an embedded
+ NUL */
char * e = s + len;
char * sans_nuls;
- STRLEN cur_min_char_len;
-
- /* If we don't know what control character sorts lowest for this
- * locale, find it */
- if (*PL_strxfrm_min_char == '\0') {
+ STRLEN sans_nuls_len;
+ int try_non_controls;
+ char this_replacement_char[] = "?\0"; /* Room for a two-byte string,
+ making sure 2nd byte is NUL.
+ */
+ STRLEN this_replacement_len;
+
+ /* If we don't know what non-NUL control character sorts lowest for
+ * this locale, find it */
+ if (PL_strxfrm_NUL_replacement == '\0') {
int j;
-#ifdef DEBUGGING
- U8 cur_min_cp = 1; /* The code point that sorts lowest, so far */
-#endif
- char * cur_min_x = NULL; /* And its xfrm, (except it also
+ char * cur_min_x = NULL; /* The min_char's xfrm, (except it also
includes the collation index
prefixed. */
DEBUG_Lv(PerlIO_printf(Perl_debug_log, "Looking to replace NUL\n"));
- /* Look through all legal code points (NUL isn't) */
- for (j = 1; j < 256; j++) {
- char * x; /* j's xfrm plus collation index */
- STRLEN x_len; /* length of 'x' */
- STRLEN trial_len = 1;
-
- /* Create a 1 byte string of the current code point, but with
- * room to be 2 bytes */
- char cur_source[] = { (char) j, '\0' , '\0' };
-
- if (PL_in_utf8_COLLATE_locale) {
- if (! isCNTRL_L1(j)) {
+
+ /* Unlikely, but it may be that no control will work to replace
+ * NUL, in which case we instead look for any character. Controls
+ * are preferred because collation order is, in general, context
+ * sensitive, with adjoining characters affecting the order, and
+ * controls are less likely to have such interactions, allowing the
+ * NUL-replacement to stand on its own. (Another way to look at it
+ * is to imagine what would happen if the NUL were replaced by a
+ * combining character; it wouldn't work out all that well.) */
+ for (try_non_controls = 0;
+ try_non_controls < 2;
+ try_non_controls++)
+ {
+ /* Look through all legal code points (NUL isn't) */
+ for (j = 1; j < 256; j++) {
+ char * x; /* j's xfrm plus collation index */
+ STRLEN x_len; /* length of 'x' */
+ STRLEN trial_len = 1;
+ char cur_source[] = { '\0', '\0' };
+
+ /* Skip non-controls the first time through the loop. The
+ * controls in a UTF-8 locale are the L1 ones */
+ if (! try_non_controls && (PL_in_utf8_COLLATE_locale)
+ ? ! isCNTRL_L1(j)
+ : ! isCNTRL_LC(j))
+ {
continue;
}
- /* If needs to be 2 bytes, find them */
- if (! UVCHR_IS_INVARIANT(j)) {
- char * d = cur_source;
- append_utf8_from_native_byte((U8) j, (U8 **) &d);
- trial_len = 2;
+ /* Create a 1-char string of the current code point */
+ cur_source[0] = (char) j;
+
+ /* Then transform it */
+ x = _mem_collxfrm(cur_source, trial_len, &x_len,
+ 0 /* The string is not in UTF-8 */);
+
+ /* Ignore any character that didn't successfully transform.
+ * */
+ if (! x) {
+ continue;
}
- }
- else if (! isCNTRL_LC(j)) {
- continue;
- }
- /* Then transform it */
- x = _mem_collxfrm(cur_source, trial_len, &x_len,
- PL_in_utf8_COLLATE_locale);
+ /* If this character's transformation is lower than
+ * the current lowest, this one becomes the lowest */
+ if ( cur_min_x == NULL
+ || strLT(x + COLLXFRM_HDR_LEN,
+ cur_min_x + COLLXFRM_HDR_LEN))
+ {
+ PL_strxfrm_NUL_replacement = j;
+ cur_min_x = x;
+ }
+ else {
+ Safefree(x);
+ }
+ } /* end of loop through all 255 characters */
- /* If something went wrong (which it shouldn't), just
- * ignore this code point */
- if ( x_len == 0
- || strlen(x + COLLXFRM_HDR_LEN) < x_len)
- {
- continue;
+ /* Stop looking if found */
+ if (cur_min_x) {
+ break;
}
- /* If this character's transformation is lower than
- * the current lowest, this one becomes the lowest */
- if ( cur_min_x == NULL
- || strLT(x + COLLXFRM_HDR_LEN,
- cur_min_x + COLLXFRM_HDR_LEN))
- {
- PL_strxfrm_min_char[0] = cur_source[0];
- PL_strxfrm_min_char[1] = cur_source[1];
- PL_strxfrm_min_char[2] = cur_source[2];
- cur_min_x = x;
-#ifdef DEBUGGING
- cur_min_cp = j;
-#endif
- }
- else {
- Safefree(x);
- }
- } /* end of loop through all bytes */
+ /* Unlikely, but possible, if there aren't any controls that
+ * work in the locale, repeat the loop, looking for any
+ * character that works */
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: No control worked. Trying non-controls\n"));
+ } /* End of loop to try first the controls, then any char */
- /* Unlikely, but possible, if there aren't any controls in the
- * locale, arbitrarily use \001 */
- if (cur_min_x == NULL) {
- STRLEN x_len; /* temporary */
- cur_min_x = _mem_collxfrm("\001", 1, &x_len,
- PL_in_utf8_COLLATE_locale);
- /* cur_min_cp was already initialized to 1 */
+ if (! cur_min_x) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: Couldn't find any character to replace"
+ " embedded NULs in locale %s with", PL_collation_name));
+ goto bad;
}
DEBUG_L(PerlIO_printf(Perl_debug_log,
- "_mem_collxfrm: lowest collating non-NUL control in the "
- "0-255 range in locale %s is 0x%02X\n",
- PL_collation_name,
- cur_min_cp));
- if (DEBUG_Lv_TEST) {
- unsigned i;
- PerlIO_printf(Perl_debug_log, "Its xfrm is");
- for (i = 0; i < strlen(cur_min_x + COLLXFRM_HDR_LEN); i ++) {
- PerlIO_printf(Perl_debug_log, " %02x",
- (U8) *(cur_min_x + COLLXFRM_HDR_LEN + i));
- }
- PerlIO_printf(Perl_debug_log, "\n");
- }
+ "_mem_collxfrm: Replacing embedded NULs in locale %s with "
+ "0x%02X\n", PL_collation_name, PL_strxfrm_NUL_replacement));
Safefree(cur_min_x);
+ } /* End of determining the character that is to replace NULs */
+
+ /* If the replacement is variant under UTF-8, it must match the
+ * UTF8-ness as the original */
+ if ( ! UVCHR_IS_INVARIANT(PL_strxfrm_NUL_replacement) && utf8) {
+ this_replacement_char[0] =
+ UTF8_EIGHT_BIT_HI(PL_strxfrm_NUL_replacement);
+ this_replacement_char[1] =
+ UTF8_EIGHT_BIT_LO(PL_strxfrm_NUL_replacement);
+ this_replacement_len = 2;
+ }
+ else {
+ this_replacement_char[0] = PL_strxfrm_NUL_replacement;
+ /* this_replacement_char[1] = '\0' was done at initialization */
+ this_replacement_len = 1;
}
/* The worst case length for the replaced string would be if every
* character in it is NUL. Multiply that by the length of each
* replacement, and allow for a trailing NUL */
- cur_min_char_len = strlen(PL_strxfrm_min_char);
- Newx(sans_nuls, (len * cur_min_char_len) + 1, char);
+ sans_nuls_len = (len * this_replacement_len) + 1;
+ Newx(sans_nuls, sans_nuls_len, char);
*sans_nuls = '\0';
-
/* Replace each NUL with the lowest collating control. Loop until have
* exhausted all the NULs */
while (s + s_strlen < e) {
- strcat(sans_nuls, s);
+ my_strlcat(sans_nuls, s, sans_nuls_len);
/* Do the actual replacement */
- strcat(sans_nuls, PL_strxfrm_min_char);
+ my_strlcat(sans_nuls, this_replacement_char, sans_nuls_len);
/* Move past the input NUL */
s += s_strlen + 1;
}
/* And add anything that trails the final NUL */
- strcat(sans_nuls, s);
+ my_strlcat(sans_nuls, s, sans_nuls_len);
/* Switch so below we transform this modified string */
s = sans_nuls;
len = strlen(s);
- }
+ } /* End of replacing NULs */
/* Make sure the UTF8ness of the string and locale match */
if (utf8 != PL_in_utf8_COLLATE_locale) {
for (j = 1; j < 256; j++) {
char * x;
STRLEN x_len;
+ char cur_source[] = { '\0', '\0' };
- /* Create a 1-char string of the current code point. */
- char cur_source[] = { (char) j, '\0' };
+ /* Create a 1-char string of the current code point */
+ cur_source[0] = (char) j;
/* Then transform it */
x = _mem_collxfrm(cur_source, 1, &x_len, FALSE);
/* If something went wrong (which it shouldn't), just
* ignore this code point */
- if (x_len == 0) {
- Safefree(x);
+ if (! x) {
continue;
}
}
}
+ if (! cur_max_x) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: Couldn't find any character to"
+ " replace above-Latin1 chars in locale %s with",
+ PL_collation_name));
+ goto bad;
+ }
+
DEBUG_L(PerlIO_printf(Perl_debug_log,
"_mem_collxfrm: highest 1-byte collating character"
" in locale %s is 0x%02X\n",
PL_collation_name,
PL_strxfrm_max_cp));
- if (DEBUG_Lv_TEST) {
- unsigned i;
- PerlIO_printf(Perl_debug_log, "Its xfrm is ");
- for (i = 0;
- i < strlen(cur_max_x + COLLXFRM_HDR_LEN);
- i++)
- {
- PerlIO_printf(Perl_debug_log, " %02x",
- (U8) cur_max_x[i + COLLXFRM_HDR_LEN]);
- }
- PerlIO_printf(Perl_debug_log, "\n");
- }
Safefree(cur_max_x);
}
{
STRLEN i;
STRLEN d= 0;
+ char * e = (char *) t + len;
for (i = 0; i < len; i+= UTF8SKIP(t + i)) {
U8 cur_char = t[i];
if (UTF8_IS_INVARIANT(cur_char)) {
s[d++] = cur_char;
}
- else if (UTF8_IS_DOWNGRADEABLE_START(cur_char)) {
+ else if (UTF8_IS_NEXT_CHAR_DOWNGRADEABLE(t + i, e)) {
s[d++] = EIGHT_BIT_UTF8_TO_NATIVE(cur_char, t[i+1]);
}
else { /* Replace illegal cp with highest collating
+ PL_collxfrm_base
+ (PL_collxfrm_mult * length_in_chars);
Newx(xbuf, xAlloc, char);
- if (UNLIKELY(! xbuf))
+ if (UNLIKELY(! xbuf)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: Couldn't malloc %zu bytes\n", xAlloc));
goto bad;
+ }
/* Store the collation id */
*(U32*)xbuf = PL_collation_ix;
/* Then the transformation of the input. We loop until successful, or we
* give up */
for (;;) {
+
*xlen = strxfrm(xbuf + COLLXFRM_HDR_LEN, s, xAlloc - COLLXFRM_HDR_LEN);
/* If the transformed string occupies less space than we told strxfrm()
* string. */
if (*xlen < xAlloc - COLLXFRM_HDR_LEN) {
+ /* Some systems include a trailing NUL in the returned length.
+ * Ignore it, using a loop in case multiple trailing NULs are
+ * returned. */
+ while ( (*xlen) > 0
+ && *(xbuf + COLLXFRM_HDR_LEN + (*xlen) - 1) == '\0')
+ {
+ (*xlen)--;
+ }
+
/* If the first try didn't get it, it means our prediction was low.
* Modify the coefficients so that we predict a larger value in any
* future transformations */
: PL_collxfrm_mult;
DEBUG_Lv(PerlIO_printf(Perl_debug_log,
- "%s: %d: initial size of %"UVuf" bytes for a length "
- "%"UVuf" string was insufficient, %"UVuf" needed\n",
+ "%s: %d: initial size of %zu bytes for a length "
+ "%zu string was insufficient, %zu needed\n",
__FILE__, __LINE__,
- (UV) computed_guess, (UV) length_in_chars, (UV) needed));
+ computed_guess, length_in_chars, needed));
/* If slope increased, use it, but discard this result for
* length 1 strings, as we can't be sure that it's a real slope
* change */
if (length_in_chars > 1 && new_m > PL_collxfrm_mult) {
-#ifdef DEBUGGING
+
+# ifdef DEBUGGING
+
STRLEN old_m = PL_collxfrm_mult;
STRLEN old_b = PL_collxfrm_base;
-#endif
+
+# endif
+
PL_collxfrm_mult = new_m;
PL_collxfrm_base = 1; /* +1 For trailing NUL */
computed_guess = PL_collxfrm_base
}
DEBUG_Lv(PerlIO_printf(Perl_debug_log,
- "%s: %d: slope is now %"UVuf"; was %"UVuf", base "
- "is now %"UVuf"; was %"UVuf"\n",
+ "%s: %d: slope is now %zu; was %zu, base "
+ "is now %zu; was %zu\n",
__FILE__, __LINE__,
- (UV) PL_collxfrm_mult, (UV) old_m,
- (UV) PL_collxfrm_base, (UV) old_b));
+ PL_collxfrm_mult, old_m,
+ PL_collxfrm_base, old_b));
}
else { /* Slope didn't change, but 'b' did */
const STRLEN new_b = needed
- computed_guess
+ PL_collxfrm_base;
DEBUG_Lv(PerlIO_printf(Perl_debug_log,
- "%s: %d: base is now %"UVuf"; was %"UVuf"\n",
+ "%s: %d: base is now %zu; was %zu\n",
__FILE__, __LINE__,
- (UV) new_b, (UV) PL_collxfrm_base));
+ new_b, PL_collxfrm_base));
PL_collxfrm_base = new_b;
}
}
break;
}
- if (UNLIKELY(*xlen >= PERL_INT_MAX))
+ if (UNLIKELY(*xlen >= PERL_INT_MAX)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: Needed %zu bytes, max permissible is %u\n",
+ *xlen, PERL_INT_MAX));
goto bad;
+ }
/* A well-behaved strxfrm() returns exactly how much space it needs
- * (not including the trailing NUL) when it fails due to not enough
- * space being provided. Assume that this is the case unless it's been
- * proven otherwise */
+ * (usually not including the trailing NUL) when it fails due to not
+ * enough space being provided. Assume that this is the case unless
+ * it's been proven otherwise */
if (LIKELY(PL_strxfrm_is_behaved) && first_time) {
xAlloc = *xlen + COLLXFRM_HDR_LEN + 1;
}
* (Many versions of cygwin fit this. When the buffer size
* isn't sufficient, they return the input size instead of
* how much is needed.)
- * Increase the buffer size by a fixed percentage and try again. */
+ * Increase the buffer size by a fixed percentage and try again.
+ * */
xAlloc += (xAlloc / 4) + 1;
PL_strxfrm_is_behaved = FALSE;
-#ifdef DEBUGGING
+# ifdef DEBUGGING
+
if (DEBUG_Lv_TEST || debug_initialization) {
PerlIO_printf(Perl_debug_log,
"_mem_collxfrm required more space than previously calculated"
- " for locale %s, trying again with new guess=%d+%"UVuf"\n",
+ " for locale %s, trying again with new guess=%d+%zu\n",
PL_collation_name, (int) COLLXFRM_HDR_LEN,
- (UV) xAlloc - COLLXFRM_HDR_LEN);
+ xAlloc - COLLXFRM_HDR_LEN);
}
-#endif
+
+# endif
+
}
Renew(xbuf, xAlloc, char);
- if (UNLIKELY(! xbuf))
+ if (UNLIKELY(! xbuf)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "_mem_collxfrm: Couldn't realloc %zu bytes\n", xAlloc));
goto bad;
+ }
first_time = FALSE;
}
-#ifdef DEBUGGING
+# ifdef DEBUGGING
+
if (DEBUG_Lv_TEST || debug_initialization) {
- unsigned i;
- char * t = s;
- bool prev_was_printable = TRUE;
- bool first_time = TRUE;
- PerlIO_printf(Perl_debug_log,
- "_mem_collxfrm[%d]: returning %"UVuf" for locale %s string '",
- PL_collation_ix, *xlen, PL_collation_name);
- while (t < s + len ) {
- UV cp = (utf8)
- ? utf8_to_uvchr_buf((U8 *) t, s + len, NULL)
- : * (U8 *) t;
- if (isPRINT(cp)) {
- if (! prev_was_printable) {
- PerlIO_printf(Perl_debug_log, " ");
- }
- PerlIO_printf(Perl_debug_log, "%c", (U8) cp);
- prev_was_printable = TRUE;
- }
- else {
- if (! first_time) {
- PerlIO_printf(Perl_debug_log, " ");
- }
- PerlIO_printf(Perl_debug_log, "%02"UVXf"", cp);
- prev_was_printable = FALSE;
- }
- t += (utf8) ? UTF8SKIP(t) : 1;
- first_time = FALSE;
- }
- PerlIO_printf(Perl_debug_log, "'\nIts xfrm is");
- for (i = COLLXFRM_HDR_LEN; i < *xlen + COLLXFRM_HDR_LEN; i++) {
- PerlIO_printf(Perl_debug_log, " %02x", (U8) xbuf[i]);
- }
- PerlIO_printf(Perl_debug_log, "\n");
+
+ print_collxfrm_input_and_return(s, s + len, xlen, utf8);
+ PerlIO_printf(Perl_debug_log, "Its xfrm is:");
+ PerlIO_printf(Perl_debug_log, "%s\n",
+ _byte_dump_string((U8 *) xbuf + COLLXFRM_HDR_LEN,
+ *xlen, 1));
}
-#endif
+
+# endif
/* Free up unneeded space; retain ehough for trailing NUL */
Renew(xbuf, COLLXFRM_HDR_LEN + *xlen + 1, char);
Safefree(s);
}
*xlen = 0;
-#ifdef DEBUGGING
+
+# ifdef DEBUGGING
+
if (DEBUG_Lv_TEST || debug_initialization) {
- PerlIO_printf(Perl_debug_log, "_mem_collxfrm[%d] returning NULL\n",
- PL_collation_ix);
+ print_collxfrm_input_and_return(s, s + len, NULL, utf8);
}
-#endif
+
+# endif
+
return NULL;
}
+# ifdef DEBUGGING
+
+STATIC void
+S_print_collxfrm_input_and_return(pTHX_
+ const char * const s,
+ const char * const e,
+ const STRLEN * const xlen,
+ const bool is_utf8)
+{
+
+ PERL_ARGS_ASSERT_PRINT_COLLXFRM_INPUT_AND_RETURN;
+
+ PerlIO_printf(Perl_debug_log, "_mem_collxfrm[%" UVuf "]: returning ",
+ (UV)PL_collation_ix);
+ if (xlen) {
+ PerlIO_printf(Perl_debug_log, "%zu", *xlen);
+ }
+ else {
+ PerlIO_printf(Perl_debug_log, "NULL");
+ }
+ PerlIO_printf(Perl_debug_log, " for locale '%s', string='",
+ PL_collation_name);
+ print_bytes_for_locale(s, e, is_utf8);
+
+ PerlIO_printf(Perl_debug_log, "'\n");
+}
+
+STATIC void
+S_print_bytes_for_locale(pTHX_
+ const char * const s,
+ const char * const e,
+ const bool is_utf8)
+{
+ const char * t = s;
+ bool prev_was_printable = TRUE;
+ bool first_time = TRUE;
+
+ PERL_ARGS_ASSERT_PRINT_BYTES_FOR_LOCALE;
+
+ while (t < e) {
+ UV cp = (is_utf8)
+ ? utf8_to_uvchr_buf((U8 *) t, e, NULL)
+ : * (U8 *) t;
+ if (isPRINT(cp)) {
+ if (! prev_was_printable) {
+ PerlIO_printf(Perl_debug_log, " ");
+ }
+ PerlIO_printf(Perl_debug_log, "%c", (U8) cp);
+ prev_was_printable = TRUE;
+ }
+ else {
+ if (! first_time) {
+ PerlIO_printf(Perl_debug_log, " ");
+ }
+ PerlIO_printf(Perl_debug_log, "%02" UVXf, cp);
+ prev_was_printable = FALSE;
+ }
+ t += (is_utf8) ? UTF8SKIP(t) : 1;
+ first_time = FALSE;
+ }
+}
+
+# endif /* #ifdef DEBUGGING */
#endif /* USE_LOCALE_COLLATE */
#ifdef USE_LOCALE
char *save_input_locale = NULL;
STRLEN final_pos;
-#ifdef LC_ALL
+# ifdef LC_ALL
+
assert(category != LC_ALL);
-#endif
+
+# endif
/* First dispose of the trivial cases */
- save_input_locale = setlocale(category, NULL);
+ save_input_locale = do_setlocale_r(category, NULL);
if (! save_input_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for category %d\n",
return FALSE;
}
-#if defined(USE_LOCALE_CTYPE) \
+# if defined(USE_LOCALE_CTYPE) \
&& (defined(MB_CUR_MAX) || (defined(HAS_NL_LANGINFO) && defined(CODESET)))
{ /* Next try nl_langinfo or MB_CUR_MAX if available */
if (category != LC_CTYPE) { /* These work only on LC_CTYPE */
/* Get the current LC_CTYPE locale */
- save_ctype_locale = setlocale(LC_CTYPE, NULL);
+ save_ctype_locale = do_setlocale_c(LC_CTYPE, NULL);
if (! save_ctype_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for LC_CTYPE\n"));
Safefree(save_ctype_locale);
save_ctype_locale = NULL;
}
- else if (! setlocale(LC_CTYPE, save_input_locale)) {
+ else if (! do_setlocale_c(LC_CTYPE, save_input_locale)) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not change LC_CTYPE locale to %s\n",
save_input_locale));
* information is desired. This means that nl_langinfo() and MB_CUR_MAX
* should give the correct results */
-# if defined(HAS_NL_LANGINFO) && defined(CODESET)
+# if defined(HAS_NL_LANGINFO) && defined(CODESET)
+ /* The task is easiest if has this POSIX 2001 function */
+
{
- char *codeset = nl_langinfo(CODESET);
- if (codeset && strNE(codeset, "")) {
- codeset = savepv(codeset);
+ const char *codeset = my_nl_langinfo(PERL_CODESET, FALSE);
+ /* FALSE => already in dest locale */
+
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "\tnllanginfo returned CODESET '%s'\n", codeset));
+ if (codeset && strNE(codeset, "")) {
/* If we switched LC_CTYPE, switch back */
if (save_ctype_locale) {
- setlocale(LC_CTYPE, save_ctype_locale);
+ do_setlocale_c(LC_CTYPE, save_ctype_locale);
Safefree(save_ctype_locale);
}
- is_utf8 = foldEQ(codeset, STR_WITH_LEN("UTF-8"))
- || foldEQ(codeset, STR_WITH_LEN("UTF8"));
+ is_utf8 = ( ( strlen(codeset) == STRLENs("UTF-8")
+ && foldEQ(codeset, STR_WITH_LEN("UTF-8")))
+ || ( strlen(codeset) == STRLENs("UTF8")
+ && foldEQ(codeset, STR_WITH_LEN("UTF8"))));
DEBUG_L(PerlIO_printf(Perl_debug_log,
"\tnllanginfo returned CODESET '%s'; ?UTF8 locale=%d\n",
codeset, is_utf8));
- Safefree(codeset);
Safefree(save_input_locale);
return is_utf8;
}
}
-# endif
-# ifdef MB_CUR_MAX
+# endif
+# ifdef MB_CUR_MAX
/* Here, either we don't have nl_langinfo, or it didn't return a
* codeset. Try MB_CUR_MAX */
Safefree(save_input_locale);
-# ifdef HAS_MBTOWC
+# ifdef HAS_MBTOWC
/* ... But, most system that have MB_CUR_MAX will also have mbtowc(),
* since they are both in the C99 standard. We can feed a known byte
* result */
if (is_utf8) {
wchar_t wc;
+ int len;
+
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)
- || wc != (wchar_t) 0x2010)
+ len = mbtowc(&wc, STR_WITH_LEN(REPLACEMENT_CHARACTER_UTF8));
+
+
+ if ( len != STRLENs(REPLACEMENT_CHARACTER_UTF8)
+ || wc != (wchar_t) UNICODE_REPLACEMENT)
{
is_utf8 = FALSE;
- DEBUG_L(PerlIO_printf(Perl_debug_log, "\thyphen=U+%x\n", (unsigned int)wc));
+ DEBUG_L(PerlIO_printf(Perl_debug_log, "\replacement=U+%x\n",
+ (unsigned int)wc));
DEBUG_L(PerlIO_printf(Perl_debug_log,
"\treturn from mbtowc=%d; errno=%d; ?UTF8 locale=0\n",
- mbtowc(&wc, HYPHEN_UTF8, strlen(HYPHEN_UTF8)), errno));
+ len, errno));
}
}
-# endif
+
+# endif
/* If we switched LC_CTYPE, switch back */
if (save_ctype_locale) {
- setlocale(LC_CTYPE, save_ctype_locale);
+ do_setlocale_c(LC_CTYPE, save_ctype_locale);
Safefree(save_ctype_locale);
}
return is_utf8;
-# endif
+
+# endif
+
}
cant_use_nllanginfo:
-#else /* nl_langinfo should work if available, so don't bother compiling this
+# else /* nl_langinfo should work if available, so don't bother compiling this
fallback code. The final fallback of looking at the name is
compiled, and will be executed if nl_langinfo fails */
* too, as the odds of a non-UTF8 string being valid UTF-8 are quite small
* */
-#ifdef HAS_LOCALECONV
-# ifdef USE_LOCALE_MONETARY
+# ifdef HAS_LOCALECONV
+# ifdef USE_LOCALE_MONETARY
+
{
char *save_monetary_locale = NULL;
bool only_ascii = FALSE;
if (category != LC_MONETARY) {
- save_monetary_locale = setlocale(LC_MONETARY, NULL);
+ save_monetary_locale = do_setlocale_c(LC_MONETARY, NULL);
if (! save_monetary_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for LC_MONETARY\n"));
Safefree(save_monetary_locale);
save_monetary_locale = NULL;
}
- else if (! setlocale(LC_MONETARY, save_input_locale)) {
+ else if (! do_setlocale_c(LC_MONETARY, save_input_locale)) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not change LC_MONETARY locale to %s\n",
save_input_locale));
lc = localeconv();
if (! lc
|| ! lc->currency_symbol
- || is_invariant_string((U8 *) lc->currency_symbol, 0))
+ || is_utf8_invariant_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;
/* If we changed it, restore LC_MONETARY to its original locale */
if (save_monetary_locale) {
- setlocale(LC_MONETARY, save_monetary_locale);
+ do_setlocale_c(LC_MONETARY, save_monetary_locale);
Safefree(save_monetary_locale);
}
}
cant_use_monetary:
-# endif /* USE_LOCALE_MONETARY */
-#endif /* HAS_LOCALECONV */
+# endif /* USE_LOCALE_MONETARY */
+# endif /* HAS_LOCALECONV */
-#if defined(HAS_STRFTIME) && defined(USE_LOCALE_TIME)
+# 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 */
if (category != LC_TIME) {
- save_time_locale = setlocale(LC_TIME, NULL);
+ save_time_locale = do_setlocale_c(LC_TIME, NULL);
if (! save_time_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for LC_TIME\n"));
Safefree(save_time_locale);
save_time_locale = NULL;
}
- else if (! setlocale(LC_TIME, save_input_locale)) {
+ else if (! do_setlocale_c(LC_TIME, save_input_locale)) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not change LC_TIME locale to %s\n",
save_input_locale));
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_invariant_string((U8 *) formatted_time, 0)) {
+ 0, 0, hour, dom, month, 2012 - 1900, 0, 0, is_dst);
+ if ( ! formatted_time
+ || is_utf8_invariant_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
* 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);
+ do_setlocale_c(LC_TIME, save_time_locale);
Safefree(save_time_locale);
}
* 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);
+ do_setlocale_c(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
+# endif
-#if 0 && defined(USE_LOCALE_MESSAGES) && defined(HAS_SYS_ERRLIST)
+# 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, this
if (category != LC_MESSAGES) {
- save_messages_locale = setlocale(LC_MESSAGES, NULL);
+ save_messages_locale = do_setlocale_c(LC_MESSAGES, NULL);
if (! save_messages_locale) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not find current locale for LC_MESSAGES\n"));
Safefree(save_messages_locale);
save_messages_locale = NULL;
}
- else if (! setlocale(LC_MESSAGES, save_input_locale)) {
+ else if (! do_setlocale_c(LC_MESSAGES, save_input_locale)) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Could not change LC_MESSAGES locale to %s\n",
save_input_locale));
break;
}
errmsg = savepv(errmsg);
- if (! is_invariant_string((U8 *) errmsg, 0)) {
+ if (! is_utf8_invariant_string((U8 *) errmsg, 0)) {
non_ascii = TRUE;
is_utf8 = is_utf8_string((U8 *) errmsg, 0);
break;
/* And, if we changed it, restore LC_MESSAGES to its original locale */
if (save_messages_locale) {
- setlocale(LC_MESSAGES, save_messages_locale);
+ do_setlocale_c(LC_MESSAGES, save_messages_locale);
Safefree(save_messages_locale);
}
}
cant_use_messages:
-#endif
-
-#endif /* the code that is compiled when no nl_langinfo */
+# endif
+# endif /* the code that is compiled when no nl_langinfo */
-#ifndef EBCDIC /* On os390, even if the name ends with "UTF-8', it isn't a
+# ifndef EBCDIC /* On os390, even if the name ends with "UTF-8', it isn't a
UTF-8 locale */
+
/* As a last resort, look at the locale name to see if it matches
* qr/UTF -? * 8 /ix, or some other common locale names. This "name", the
* return of setlocale(), is actually defined to be opaque, so we can't
while ((name += strcspn(name, "Uu") + 1)
<= save_input_locale + final_pos - 2)
{
- if (!isALPHA_FOLD_NE(*name, 't')
+ if ( isALPHA_FOLD_NE(*name, 't')
|| isALPHA_FOLD_NE(*(name + 1), 'f'))
{
continue;
"Locale %s doesn't end with UTF-8 in name\n",
save_input_locale));
}
-#endif
-#ifdef WIN32
+# endif
+# ifdef WIN32
+
/* http://msdn.microsoft.com/en-us/library/windows/desktop/dd317756.aspx */
- if (final_pos >= 4
- && *(save_input_locale + final_pos - 0) == '1'
- && *(save_input_locale + final_pos - 1) == '0'
- && *(save_input_locale + final_pos - 2) == '0'
- && *(save_input_locale + final_pos - 3) == '5'
- && *(save_input_locale + final_pos - 4) == '6')
- {
+ if (memENDs(save_input_locale, final_pos, "65001")) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
- "Locale %s ends with 10056 in name, is UTF-8 locale\n",
+ "Locale %s ends with 65001 in name, is UTF-8 locale\n",
save_input_locale));
Safefree(save_input_locale);
return TRUE;
}
-#endif
+
+# endif
/* Other common encodings are the ISO 8859 series, which aren't UTF-8. But
* since we are about to return FALSE anyway, there is no point in doing
* this extra work */
-#if 0
+
+# if 0
if (instr(save_input_locale, "8859")) {
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Locale %s has 8859 in name, not UTF-8 locale\n",
Safefree(save_input_locale);
return FALSE;
}
-#endif
+# endif
DEBUG_L(PerlIO_printf(Perl_debug_log,
"Assuming locale %s is not a UTF-8 locale\n",
* to the C locale */
char *errstr;
+ dVAR;
+
+#ifndef USE_LOCALE_MESSAGES
+
+ /* If platform doesn't have messages category, we don't do any switching to
+ * the C locale; we just use whatever strerror() returns */
+
+ errstr = savepv(Strerror(errnum));
+
+#else /* Has locale messages */
-#ifdef USE_LOCALE_MESSAGES /* If platform doesn't have messages category, we
- don't do any switching to the C locale; we just
- use whatever strerror() returns */
const bool within_locale_scope = IN_LC(LC_MESSAGES);
- dVAR;
+# if defined(HAS_POSIX_2008_LOCALE) && defined(HAS_STRERROR_L)
-# ifdef USE_THREAD_SAFE_LOCALE
- locale_t save_locale;
-# else
- char * save_locale;
- bool locale_is_C;
+ /* This function is trivial if we don't have to worry about thread safety
+ * and have strerror_l(), as it handles the switch of locales so we don't
+ * have to deal with that. We don't have to worry about thread safety if
+ * this is an unthreaded build, or if strerror_r() is also available. Both
+ * it and strerror_l() are thread-safe. Plain strerror() isn't thread
+ * safe. But on threaded builds when strerror_r() is available, the
+ * apparent call to strerror() below is actually a macro that
+ * behind-the-scenes calls strerror_r().
+ */
+
+# if ! defined(USE_ITHREADS) || defined(HAS_STRERROR_R)
+
+ if (within_locale_scope) {
+ errstr = savepv(strerror(errnum));
+ }
+ else {
+ errstr = savepv(strerror_l(errnum, PL_C_locale_obj));
+ }
+
+# else
+
+ /* Here we have strerror_l(), but not strerror_r() and we are on a
+ * threaded-build. We use strerror_l() for everything, constructing a
+ * locale to pass to it if necessary */
+
+ bool do_free = FALSE;
+ locale_t locale_to_use;
+
+ if (within_locale_scope) {
+ locale_to_use = uselocale((locale_t) 0);
+ if (locale_to_use == LC_GLOBAL_LOCALE) {
+ locale_to_use = duplocale(LC_GLOBAL_LOCALE);
+ do_free = TRUE;
+ }
+ }
+ else { /* Use C locale if not within 'use locale' scope */
+ locale_to_use = PL_C_locale_obj;
+ }
+
+ errstr = savepv(strerror_l(errnum, locale_to_use));
+
+ if (do_free) {
+ freelocale(locale_to_use);
+ }
+
+# endif
+# else /* Doesn't have strerror_l() */
+
+# ifdef USE_POSIX_2008_LOCALE
+
+ locale_t save_locale = NULL;
+
+# else
+
+ char * save_locale = NULL;
+ bool locale_is_C = FALSE;
/* We have a critical section to prevent another thread from changing the
* locale out from under us (or zapping the buffer returned from
* setlocale() ) */
LOCALE_LOCK;
-# endif
+# endif
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "my_strerror called with errnum %d\n", errnum));
if (! within_locale_scope) {
+ errno = 0;
-# ifdef USE_THREAD_SAFE_LOCALE /* Use the thread-safe locale functions */
+# ifdef USE_POSIX_2008_LOCALE /* Use the thread-safe locale functions */
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "Not within locale scope, about to call"
+ " uselocale(0x%p)\n", PL_C_locale_obj));
save_locale = uselocale(PL_C_locale_obj);
+ if (! save_locale) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "uselocale failed, errno=%d\n", errno));
+ }
+ else {
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "uselocale returned 0x%p\n", save_locale));
+ }
-# else /* Not thread-safe build */
+# else /* Not thread-safe build */
- save_locale = setlocale(LC_MESSAGES, NULL);
- locale_is_C = isNAME_C_OR_POSIX(save_locale);
+ save_locale = do_setlocale_c(LC_MESSAGES, NULL);
+ if (! save_locale) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "setlocale failed, errno=%d\n", errno));
+ }
+ else {
+ locale_is_C = isNAME_C_OR_POSIX(save_locale);
- /* Switch to the C locale if not already in it */
- if (! locale_is_C) {
+ /* Switch to the C locale if not already in it */
+ if (! locale_is_C) {
- /* The setlocale() just below likely will zap 'save_locale', so
- * create a copy. */
- save_locale = savepv(save_locale);
- setlocale(LC_MESSAGES, "C");
+ /* The setlocale() just below likely will zap 'save_locale', so
+ * create a copy. */
+ save_locale = savepv(save_locale);
+ do_setlocale_c(LC_MESSAGES, "C");
+ }
}
-# endif
+# endif
} /* end of ! within_locale_scope */
-
-#endif
-
- errstr = Strerror(errnum);
- if (errstr) {
- errstr = savepv(errstr);
- SAVEFREEPV(errstr);
+ else {
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log, "%s: %d: WITHIN locale scope\n",
+ __FILE__, __LINE__));
}
-#ifdef USE_LOCALE_MESSAGES
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "Any locale change has been done; about to call Strerror\n"));
+ errstr = savepv(Strerror(errnum));
if (! within_locale_scope) {
+ errno = 0;
-# ifdef USE_THREAD_SAFE_LOCALE
+# ifdef USE_POSIX_2008_LOCALE
- uselocale(save_locale);
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s: %d: not within locale scope, restoring the locale\n",
+ __FILE__, __LINE__));
+ if (save_locale && ! uselocale(save_locale)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "uselocale restore failed, errno=%d\n", errno));
+ }
}
-# else
+# else
- if (! locale_is_C) {
- setlocale(LC_MESSAGES, save_locale);
+ if (save_locale && ! locale_is_C) {
+ if (! do_setlocale_c(LC_MESSAGES, save_locale)) {
+ DEBUG_L(PerlIO_printf(Perl_debug_log,
+ "setlocale restore failed, errno=%d\n", errno));
+ }
Safefree(save_locale);
}
}
LOCALE_UNLOCK;
-# endif
+# endif
+# endif /* End of doesn't have strerror_l */
+#endif /* End of does have locale messages */
+
+#ifdef DEBUGGING
+
+ if (DEBUG_Lv_TEST) {
+ PerlIO_printf(Perl_debug_log, "Strerror returned; saving a copy: '");
+ print_bytes_for_locale(errstr, errstr + strlen(errstr), 0);
+ PerlIO_printf(Perl_debug_log, "'\n");
+ }
+
#endif
+ SAVEFREEPV(errstr);
return errstr;
}
/*
-=head1 Locale-related functions and macros
-
=for apidoc sync_locale
Changing the program's locale should be avoided by XS code. Nevertheless,
void
Perl_sync_locale(pTHX)
{
+ char * newlocale;
#ifdef USE_LOCALE_CTYPE
- new_ctype(setlocale(LC_CTYPE, NULL));
-#endif /* USE_LOCALE_CTYPE */
+ newlocale = do_setlocale_c(LC_CTYPE, NULL);
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s:%d: %s\n", __FILE__, __LINE__,
+ setlocale_debug_string(LC_CTYPE, NULL, newlocale)));
+ new_ctype(newlocale);
+
+#endif /* USE_LOCALE_CTYPE */
#ifdef USE_LOCALE_COLLATE
- new_collate(setlocale(LC_COLLATE, NULL));
-#endif
+ newlocale = do_setlocale_c(LC_COLLATE, NULL);
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s:%d: %s\n", __FILE__, __LINE__,
+ setlocale_debug_string(LC_COLLATE, NULL, newlocale)));
+ new_collate(newlocale);
+
+#endif
#ifdef USE_LOCALE_NUMERIC
- set_numeric_local(); /* Switch from "C" to underlying LC_NUMERIC */
- new_numeric(setlocale(LC_NUMERIC, NULL));
+
+ newlocale = do_setlocale_c(LC_NUMERIC, NULL);
+ DEBUG_Lv(PerlIO_printf(Perl_debug_log,
+ "%s:%d: %s\n", __FILE__, __LINE__,
+ setlocale_debug_string(LC_NUMERIC, NULL, newlocale)));
+ new_numeric(newlocale);
+
#endif /* USE_LOCALE_NUMERIC */
}
#if defined(DEBUGGING) && defined(USE_LOCALE)
-char *
-Perl__setlocale_debug_string(const int category, /* category number,
+STATIC char *
+S_setlocale_debug_string(const int category, /* category number,
like LC_ALL */
const char* const locale, /* locale name */
/* initialise to a non-null value to keep it out of BSS and so keep
* -DPERL_GLOBAL_STRUCT_PRIVATE happy */
- static char ret[128] = "x";
+ static char ret[128] = "If you can read this, thank your buggy C"
+ " library strlcpy(), and change your hints file"
+ " to undef it";
+ unsigned int i;
+
+# ifdef LC_ALL
+
+ const unsigned int highest_index = LC_ALL_INDEX;
+
+# else
+
+ const unsigned int highest_index = NOMINAL_LC_ALL_INDEX - 1;
+
+#endif
+
my_strlcpy(ret, "setlocale(", sizeof(ret));
- switch (category) {
- default:
- my_snprintf(ret, sizeof(ret), "%s? %d", ret, category);
- break;
-# ifdef LC_ALL
- case LC_ALL:
- my_strlcat(ret, "LC_ALL", sizeof(ret));
- break;
-# endif
-# ifdef LC_CTYPE
- case LC_CTYPE:
- my_strlcat(ret, "LC_CTYPE", sizeof(ret));
- break;
-# endif
-# ifdef LC_NUMERIC
- case LC_NUMERIC:
- my_strlcat(ret, "LC_NUMERIC", sizeof(ret));
- break;
-# endif
-# ifdef LC_COLLATE
- case LC_COLLATE:
- my_strlcat(ret, "LC_COLLATE", sizeof(ret));
- break;
-# endif
-# ifdef LC_TIME
- case LC_TIME:
- my_strlcat(ret, "LC_TIME", sizeof(ret));
- break;
-# endif
-# ifdef LC_MONETARY
- case LC_MONETARY:
- my_strlcat(ret, "LC_MONETARY", sizeof(ret));
- break;
-# endif
-# ifdef LC_MESSAGES
- case LC_MESSAGES:
- my_strlcat(ret, "LC_MESSAGES", sizeof(ret));
- break;
-# endif
+ /* Look for category in our list, and if found, add its name */
+ for (i = 0; i <= highest_index; i++) {
+ if (category == categories[i]) {
+ my_strlcat(ret, category_names[i], sizeof(ret));
+ goto found_category;
+ }
}
+ /* Unknown category to us */
+ my_snprintf(ret, sizeof(ret), "%s? %d", ret, category);
+
+ found_category:
+
my_strlcat(ret, ", ", sizeof(ret));
if (locale) {
https://perl5.git.perl.org / perl5.git / blobdiff