#ifndef __PDCLIB_LOCALE_H
#define __PDCLIB_LOCALE_H __PDCLIB_LOCALE_H
+#include <_PDCLIB_int.h>
#include <locale.h>
+#include <wctype.h>
+#include <threads.h>
+#include <stdlib.h>
-#define _PDCLIB_threadlocale() (uselocale(NULL))
+#define _PDCLIB_LOCALE_METHOD_TSS 't'
+#define _PDCLIB_LOCALE_METHOD_THREAD_LOCAL 'T'
+
+#if !defined(_PDCLIB_LOCALE_METHOD)
+ /* If undefined, no POSIX per thread locales */
+ static inline locale_t _PDCLIB_threadlocale( void )
+ {
+ return &_PDCLIB_global_locale;
+ }
+#elif _PDCLIB_LOCALE_METHOD == _PDCLIB_LOCALE_METHOD_TSS
+ extern tss_t _PDCLIB_locale_tss;
+ static inline locale_t _PDCLIB_threadlocale( void )
+ {
+ locale_t l = tss_get(_PDCLIB_locale_tss);
+ if(l == NULL)
+ l = &_PDCLIB_global_locale;
+ return l;
+ }
+
+ static inline void _PDCLIB_setthreadlocale( locale_t l )
+ {
+ if(tss_set(_PDCLIB_locale_tss, l) != thrd_success)
+ abort();
+ }
+#elif _PDCLIB_LOCALE_METHOD == _PDCLIB_LOCALE_METHOD_THREAD_LOCAL
+ extern thread_local locale_t _PDCLIB_locale_tls;
+ #define _PDCLIB_threadlocale() (_PDCLIB_locale_tls || &_PDCLIB_global_locale)
+ static inline locale_t _PDCLIB_threadlocale( void )
+ {
+ locale_t l = _PDCLIB_locale_tls;
+ if(l == NULL)
+ l = &_PDCLIB_global_locale;
+ return l;
+ }
+
+ static inline void _PDCLIB_setthreadlocale( locale_t l )
+ {
+ _PDCLIB_locale_tls = l;
+ }
+#else
+ #error Locale TSS method unspecified
+#endif
+
+/* -------------------------------------------------------------------------- */
+/* <ctype.h> lookup tables */
+/* -------------------------------------------------------------------------- */
+
+#define _PDCLIB_CTYPE_ALPHA 1
+#define _PDCLIB_CTYPE_BLANK 2
+#define _PDCLIB_CTYPE_CNTRL 4
+#define _PDCLIB_CTYPE_GRAPH 8
+#define _PDCLIB_CTYPE_PUNCT 16
+#define _PDCLIB_CTYPE_SPACE 32
+#define _PDCLIB_CTYPE_LOWER 64
+#define _PDCLIB_CTYPE_UPPER 128
+#define _PDCLIB_CTYPE_DIGIT 256
+#define _PDCLIB_CTYPE_XDIGT 512
+
+#define _PDCLIB_WCTRANS_TOLOWER 1
+#define _PDCLIB_WCTRANS_TOUPPER 2
+
+typedef struct _PDCLIB_ctype
+{
+ _PDCLIB_uint16_t flags;
+ unsigned char upper;
+ unsigned char lower;
+ unsigned char collation;
+} _PDCLIB_ctype_t;
+
+typedef struct _PDCLIB_wcinfo
+{
+ _PDCLIB_wint_t num;
+ _PDCLIB_uint16_t flags;
+ _PDCLIB_wint_t lower;
+ _PDCLIB_wint_t upper;
+} _PDCLIB_wcinfo_t;
struct _PDCLIB_locale {
- struct _PDCLIB_charcodec *_Codec;
+ const _PDCLIB_charcodec_t _Codec;
struct lconv _Conv;
+
+ /* ctype / wctype */
+ /* XXX: Maybe re-evaluate constness of these later on? */
+ const _PDCLIB_wcinfo_t *_WCType;
+ _PDCLIB_size_t _WCTypeSize;
+ const _PDCLIB_ctype_t *_CType;
+
+ /* perror/strerror */
+ char *_ErrnoStr[_PDCLIB_ERRNO_MAX];
};
+extern const _PDCLIB_wcinfo_t _PDCLIB_wcinfo[];
+extern const size_t _PDCLIB_wcinfo_size;
+
+static inline int _PDCLIB_wcinfo_cmp( const void * _key, const void * _obj )
+{
+ _PDCLIB_uint32_t * key = (_PDCLIB_uint32_t *) _key;
+ _PDCLIB_wcinfo_t * obj = (_PDCLIB_wcinfo_t *) _obj;
+ return *key - obj->num;
+}
+
+static inline _PDCLIB_wcinfo_t * _PDCLIB_wcgetinfo( locale_t l, _PDCLIB_uint32_t num )
+{
+ _PDCLIB_wcinfo_t *info = (_PDCLIB_wcinfo_t*)
+ bsearch( &num, l->_WCType, l->_WCTypeSize,
+ sizeof( l->_WCType[0] ), _PDCLIB_wcinfo_cmp );
+
+ return info;
+}
+
+static inline wint_t _PDCLIB_unpackwint( wint_t wc )
+{
+ if( sizeof(_PDCLIB_wchar_t) == 2 && sizeof(_PDCLIB_wint_t) == 4 ) {
+ /* On UTF-16 platforms, as an extension accept a "packed surrogate"
+ * encoding. We accept the surrogate pairs either way
+ */
+
+ wint_t c = (wc & 0xF800F800);
+ if(c == (_PDCLIB_wint_t) 0xD800DC00) {
+ // MSW: Lead, LSW: Trail
+ wint_t lead = wc >> 16 & 0x3FF;
+ wint_t trail = wc & 0x3FF;
+ wc = lead << 10 | trail;
+ } else if(c == (_PDCLIB_wint_t) 0xDC00D800) {
+ // MSW: Trail, LSW: Lead
+ wint_t trail = wc >> 16 & 0x3FF;
+ wint_t lead = wc & 0x3FF;
+ wc = lead << 10 | trail;
+ }
+
+ }
+ return wc;
+}
+
+/* Internal xlocale-style WCType API */
+int _PDCLIB_iswalnum_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswalpha_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswblank_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswcntrl_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswdigit_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswgraph_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswlower_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswprint_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswpunct_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswspace_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswupper_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswxdigit_l( wint_t _Wc, locale_t l );
+int _PDCLIB_iswctype_l( wint_t _Wc, wctype_t _Desc, locale_t l );
+wint_t _PDCLIB_towlower_l( wint_t _Wc, locale_t l );
+wint_t _PDCLIB_towupper_l( wint_t _Wc, locale_t l );
+wint_t _PDCLIB_towctrans_l( wint_t _Wc, wctrans_t _Desc, locale_t l );
+
#endif