locale/xlocale.3

   1 .Dd March 11, 2005
   2 .Dt XLOCALE 3
   3 .Os
   4 .Sh NAME
   5 .Nm xlocale
   6 .Nd Extended locale support.
   7 .Sh LIBRARY
   8 .Lb libc
   9 .Sh DESCRIPTION
  10 Include
  11 .Aq xlocale.h
  12 for extended locale support.
  13 It can be used alone or with the POSIX locale API in
  14 .Aq locale.h .
  15 .Pp
  16 The extended locale, or "xlocale" API consists of five basic routines,
  17 which are documented separately:
  18 .Xr duplocale 3 ,
  19 .Xr freelocale 3 ,
  20 .Xr newlocale 3 ,
  21 .Xr querylocale 3 ,
  22 and
  23 .Xr uselocale 3 .
  24 For each of these routines, if a NULL
  25 .Vt locale_t
  26 is given, the current locale is used.
  27 .Pp
  28 In addition,
  29 .Aq xlocale.h
  30 defines a few macros:
  31 .Pp
  32 .Bl -dash
  33 .It
  34 LC_GLOBAL_LOCALE - A special
  35 .Vt locale_t
  36 value that corresponds to the global, process-wide locale.
  37 .It
  38 MB_CUR_MAX - This macro is traditionally defined as an integer
  39 containing the value of the longest multi-byte string
  40 that a single-wide character in the global locale can translate into.
  41 With extended locales, this macro is replaced with a function
  42 that returns the value of the longest multi-byte string
  43 that a single-wide character in the current locale (per-thread or global)
  44 can translate into.
  45 .It
  46 MB_CUR_MAX_L(loc) - This macro is equivalent to MB_CUR_MAX,
  47 except that it may be passed a specific locale directly.
  48 .El
  49 .Sh CAVEATS
  50 The POSIX
  51 .Xr setlocale 3
  52 function only affects the global locale,
  53 so using it when a per-thread locale is in effect
  54 will not change locale behavior for that thread.
  55 However, it will change behavior for threads
  56 with no per-thread locale in effect.
  57 .Pp
  58 The routines defined in
  59 .Aq rune.h
  60 are deprecated, and may not be fully consistent with the xlocale API.
  61 Of particular note is
  62 .Fn setinvalidrune ,
  63 which would normally modify the value in the global locale.
  64 Since this value resides in a sub-structure of
  65 .Vt locale_t
  66 and sub-structures may be shared by multiple locales,
  67 .Fn setinvalidrune
  68 has been modified to make a copy of the sub-structure.
  69 This prevents it from affecting other locales.
  70 .Sh SEE ALSO
  71 .Xr duplocale 3 ,
  72 .Xr freelocale 3 ,
  73 .Xr localeconv 3 ,
  74 .Xr newlocale 3 ,
  75 .Xr querylocale 3 ,
  76 .Xr uselocale 3
  77 .Sh CONVENIENCE FUNCTIONS
  78 The xlocale API also includes "convenience functions":
  79 functions that can be executed using a given locale,
  80 rather than the current locale.
  81 These functions all take one extra
  82 .Vt locale_t
  83 argument at the end of the traditional argument list,
  84 except in the case of variable-argument functions,
  85 in which case the extra argument comes before the format string.
  86 If a NULL
  87 .Vt locale_t
  88 is passed, the C locale will be used.
  89 .Pp
  90 For completeness,
  91 the convenience functions are listed here
  92 (organized by the header file that contains the original function).
  93 .Pp
  94 .Bl -tag -width monetary.h
  95 .It Aq _wctype.h
  96 .Xr iswalnum_l 3 ,
  97 .Xr iswalpha_l 3 ,
  98 .Xr iswcntrl_l 3 ,
  99 .Xr iswctype_l 3 ,
 100 .Xr iswdigit_l 3 ,
 101 .Xr iswgraph_l 3 ,
 102 .Xr iswlower_l 3 ,
 103 .Xr iswprint_l 3 ,
 104 .Xr iswpunct_l 3 ,
 105 .Xr iswspace_l 3 ,
 106 .Xr iswupper_l 3 ,
 107 .Xr iswxdigit_l 3 ,
 108 .Xr towlower_l 3 ,
 109 .Xr towupper_l 3 ,
 110 .Xr wctype_l 3
 111 .It Aq ctype.h
 112 .Xr digittoint_l 3 ,
 113 .Xr isalnum_l 3 ,
 114 .Xr isalpha_l 3 ,
 115 .Xr isblank_l 3 ,
 116 .Xr iscntrl_l 3 ,
 117 .Xr isdigit_l 3 ,
 118 .Xr isgraph_l 3 ,
 119 .Xr ishexnumber_l 3 ,
 120 .Xr isideogram_l 3 ,
 121 .Xr islower_l 3 ,
 122 .Xr isnumber_l 3 ,
 123 .Xr isphonogram_l 3 ,
 124 .Xr isprint_l 3 ,
 125 .Xr ispunct_l 3 ,
 126 .Xr isrune_l 3 ,
 127 .Xr isspace_l 3 ,
 128 .Xr isspecial_l 3 ,
 129 .Xr isupper_l 3 ,
 130 .Xr isxdigit_l 3 ,
 131 .Xr tolower_l 3 ,
 132 .Xr toupper_l 3
 133 .It Aq inttypes.h
 134 .Xr strtoimax_l 3 ,
 135 .Xr strtoumax_l 3 ,
 136 .Xr wcstoimax_l 3 ,
 137 .Xr wcstoumax_l 3
 138 .It Aq langinfo.h
 139 .Xr nl_langinfo_l 3
 140 .It Aq monetary.h
 141 .Xr strfmon_l 3
 142 .It Aq stdio.h
 143 .Xr asprintf_l 3 ,
 144 .Xr fprintf_l 3 ,
 145 .Xr fscanf_l 3 ,
 146 .Xr printf_l 3 ,
 147 .Xr scanf_l 3 ,
 148 .Xr snprintf_l 3 ,
 149 .Xr sprintf_l 3 ,
 150 .Xr sscanf_l 3 ,
 151 .Xr vasprintf_l 3 ,
 152 .Xr vfprintf_l 3 ,
 153 .Xr vfscanf_l 3 ,
 154 .Xr vprintf_l 3 ,
 155 .Xr vscanf_l 3 ,
 156 .Xr vsnprintf_l 3 ,
 157 .Xr vsprintf_l 3 ,
 158 .Xr vsscanf_l 3
 159 .It Aq stdlib.h
 160 .Xr atof_l 3 ,
 161 .Xr atoi_l 3 ,
 162 .Xr atol_l 3 ,
 163 .Xr atoll_l 3 ,
 164 .Xr mblen_l 3 ,
 165 .Xr mbstowcs_l 3 ,
 166 .Xr mbtowc_l 3 ,
 167 .Xr strtod_l 3 ,
 168 .Xr strtof_l 3 ,
 169 .Xr strtol_l 3 ,
 170 .Xr strtold_l 3 ,
 171 .Xr strtoll_l 3 ,
 172 .Xr strtoq_l 3 ,
 173 .Xr strtoul_l 3 ,
 174 .Xr strtoull_l 3 ,
 175 .Xr strtouq_l 3 ,
 176 .Xr wcstombs_l 3 ,
 177 .Xr wctomb_l 3
 178 .It Aq string.h
 179 .Xr strcoll_l 3 ,
 180 .Xr strxfrm_l 3 ,
 181 .Xr strcasecmp_l 3 ,
 182 .Xr strcasestr_l 3 ,
 183 .Xr strncasecmp_l 3
 184 .It Aq time.h
 185 .Xr strftime_l 3 ,
 186 .Xr strptime_l 3
 187 .It Aq wchar.h
 188 .Xr btowc_l 3 ,
 189 .Xr fgetwc_l 3 ,
 190 .Xr *fgetws_l 3 ,
 191 .Xr fputwc_l 3 ,
 192 .Xr fputws_l 3 ,
 193 .Xr fwprintf_l 3 ,
 194 .Xr fwscanf_l 3 ,
 195 .Xr getwc_l 3 ,
 196 .Xr getwchar_l 3 ,
 197 .Xr mbrlen_l 3 ,
 198 .Xr mbrtowc_l 3 ,
 199 .Xr mbsinit_l 3 ,
 200 .Xr mbsnrtowcs_l 3 ,
 201 .Xr mbsrtowcs_l 3 ,
 202 .Xr putwc_l 3 ,
 203 .Xr putwchar_l 3 ,
 204 .Xr swprintf_l 3 ,
 205 .Xr swscanf_l 3 ,
 206 .Xr ungetwc_l 3 ,
 207 .Xr vfwprintf_l 3 ,
 208 .Xr vfwscanf_l 3 ,
 209 .Xr vswprintf_l 3 ,
 210 .Xr vswscanf_l 3 ,
 211 .Xr vwprintf_l 3 ,
 212 .Xr vwscanf_l 3 ,
 213 .Xr wcrtomb_l 3 ,
 214 .Xr wcscoll_l 3 ,
 215 .Xr wcsftime_l 3 ,
 216 .Xr wcsnrtombs_l 3 ,
 217 .Xr wcsrtombs_l 3 ,
 218 .Xr wcstod_l 3 ,
 219 .Xr wcstof_l 3 ,
 220 .Xr wcstol_l 3 ,
 221 .Xr wcstold_l 3 ,
 222 .Xr wcstoll_l 3 ,
 223 .Xr wcstoul_l 3 ,
 224 .Xr wcstoull_l 3 ,
 225 .Xr wcswidth_l 3 ,
 226 .Xr wcsxfrm_l 3 ,
 227 .Xr wctob_l 3 ,
 228 .Xr wcwidth_l 3 ,
 229 .Xr wprintf_l 3 ,
 230 .Xr wscanf_l 3
 231 .It Aq wctype.h
 232 .Xr iswblank_l 3 ,
 233 .Xr iswhexnumber_l 3 ,
 234 .Xr iswideogram_l 3 ,
 235 .Xr iswnumber_l 3 ,
 236 .Xr iswphonogram_l 3 ,
 237 .Xr iswrune_l 3 ,
 238 .Xr iswspecial_l 3 ,
 239 .Xr nextwctype_l 3 ,
 240 .Xr towctrans_l 3 ,
 241 .Xr wctrans_l 3
 242 .It Aq xlocale.h
 243 .Xr localeconv_l 3
 244 .El