1 '\" te
   2 .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
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  11 .TH ISWALPHA 3C "Jun 23, 2014"
  12 .SH NAME
  13 iswalpha, isenglish, isideogram, iswideogram, isnumber, iswnumber,
  14 isphonogram, iswphonogram, isspecial, iswspecial, iswalnum, iswascii,
  15 iswblank, iswcntrl, iswdigit, iswgraph, iswlower, iswprint, iswpunct,
  16 iswspace, iswupper, iswxdigit, iswhexnumber, iswalpha_l, iswideogram_l,
  17 iswnumber_l, iswphonogram_l, iswspecial_l, iswalnum_l, iswascii_l,
  18 iswblank_l, iswcntrl_l, iswdigit_l, iswgraph_l, iswlower_l, iswprint_l,
  19 iswpunct_l, iswspace_l, iswupper_l, iswhexnumber_l \- wide-character
  20 code classification functions
  21 
  22 .SH SYNOPSIS
  23 .LP
  24 .nf
  25 #include <wchar.h>
  26 #include <wctype.h>
  27 
  28 \fBint\fR \fBiswalpha\fR(\fBwint_t\fR \fIwc\fR);
  29 .fi
  30 .LP
  31 .nf
  32 \fBint\fR \fBisenglish\fR(\fBwint_t\fR \fIwc\fR);
  33 .fi
  34 .LP
  35 .nf
  36 \fBint\fR \fBisideogram\fR(\fBwint_t\fR \fIwc\fR);
  37 .fi
  38 .LP
  39 .nf
  40 \fBint\fR \fBisnumber\fR(\fBwint_t\fR \fIwc\fR);
  41 .fi
  42 .LP
  43 .nf
  44 \fBint\fR \fBisphonogram\fR(\fBwint_t\fR \fIwc\fR);
  45 .fi
  46 .LP
  47 .nf
  48 \fBint\fR \fBisspecial\fR(\fBwint_t\fR \fIwc\fR);
  49 .fi
  50 .LP
  51 .nf
  52 \fBint\fR \fBiswalnum\fR(\fBwint_t\fR \fIwc\fR);
  53 .fi
  54 .LP
  55 .nf
  56 \fBint\fR \fBiswascii\fR(\fBwint_t\fR \fIwc\fR);
  57 .fi
  58 .LP
  59 .nf
  60 \fBint\fR \fBiswblank\fR(\fBwint_t\fR \fIwc\fR);
  61 .fi
  62 .LP
  63 .nf
  64 \fBint\fR \fBiswcntrl\fR(\fBwint_t\fR \fIwc\fR);
  65 .fi
  66 .LP
  67 .nf
  68 \fBint\fR \fBiswdigit\fR(\fBwint_t\fR \fIwc\fR);
  69 .fi
  70 .LP
  71 .nf
  72 \fBint\fR \fBiswgraph\fR(\fBwint_t\fR \fIwc\fR);
  73 .fi
  74 .LP
  75 .nf
  76 \fBint\fR \fBiswlower\fR(\fBwint_t\fR \fIwc\fR);
  77 .fi
  78 .LP
  79 .nf
  80 \fBint\fR \fBiswprint\fR(\fBwint_t\fR \fIwc\fR);
  81 .fi
  82 .LP
  83 .nf
  84 \fBint\fR \fBiswpunct\fR(\fBwint_t\fR \fIwc\fR);
  85 .fi
  86 .LP
  87 .nf
  88 \fBint\fR \fBiswspace\fR(\fBwint_t\fR \fIwc\fR);
  89 .fi
  90 .LP
  91 .nf
  92 \fBint\fR \fBiswupper\fR(\fBwint_t\fR \fIwc\fR);
  93 .fi
  94 .LP
  95 .nf
  96 \fBint\fR \fBiswxdigit\fR(\fBwint_t\fR \fIwc\fR);
  97 .fi
  98 .LP
  99 .nf
 100 \fBint\fR \fBiswhexnumber\fR(\fBwint_t\fR \fIwc\fR);
 101 .fi
 102 .LP
 103 .nf
 104 \fBint\fR \fBiswideogram\fR(\fBwint_t\fR \fIwc\fR);
 105 .fi
 106 .LP
 107 .nf
 108 \fBint\fR \fBiswnumber\fR(\fBwint_t\fR \fIwc\fR);
 109 .fi
 110 .LP
 111 .nf
 112 \fBint\fR \fBiswphonogram\fR(\fBwint_t\fR \fIwc\fR);
 113 .fi
 114 .LP
 115 .nf
 116 \fBint\fR \fBiswspecial\fR(\fBwint_t\fR \fIwc\fR);
 117 .fi
 118 .LP
 119 .nf
 120 \fBint\fR \fBiswalpha_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 121 .fi
 122 .LP
 123 .nf
 124 \fBint\fR \fBiswideogram_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 125 .fi
 126 .LP
 127 .nf
 128 \fBint\fR \fBiswnumber_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 129 .fi
 130 .LP
 131 .nf
 132 \fBint\fR \fBiswphonogram_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 133 .fi
 134 .LP
 135 .nf
 136 \fBint\fR \fBiswspecial_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 137 .fi
 138 .LP
 139 .nf
 140 \fBint\fR \fBiswalnum_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 141 .fi
 142 .LP
 143 .nf
 144 \fBint\fR \fBiswascii_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 145 .fi
 146 .LP
 147 .nf
 148 \fBint\fR \fBiswblank_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 149 .fi
 150 .LP
 151 .nf
 152 \fBint\fR \fBiswcntrl_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 153 .fi
 154 .LP
 155 .nf
 156 \fBint\fR \fBiswdigit_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 157 .fi
 158 .LP
 159 .nf
 160 \fBint\fR \fBiswgraph_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 161 .fi
 162 .LP
 163 .nf
 164 \fBint\fR \fBiswlower_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 165 .fi
 166 .LP
 167 .nf
 168 \fBint\fR \fBiswprint_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 169 .fi
 170 .LP
 171 .nf
 172 \fBint\fR \fBiswpunct_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 173 .fi
 174 .LP
 175 .nf
 176 \fBint\fR \fBiswspace_l\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 177 .fi
 178 .LP
 179 .nf
 180 \fBint\fR \fBiswupper\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 181 .fi
 182 .LP
 183 .nf
 184 \fBint\fR \fBiswxdigit\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 185 .fi
 186 .LP
 187 .nf
 188 #include <xlocale.h>
 189 
 190 \fBint\fR \fBiswhexnumber\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
 191 .fi
 192 
 193 .SH DESCRIPTION
 194 .LP
 195 These functions test whether \fIwc\fR is a wide-character code representing a
 196 character of a particular class defined in the \fBLC_CTYPE\fR category of the
 197 current locale or the locale specified by \fIloc\fR.
 198 .LP
 199 The functions \fBiswalpha_l()\fR, \fBiswideogram_l()\fR, \fBiswnumber_l()\fR,
 200 \fBiswphonogram_l()\fR, \fBiswspecial_l()\fR, \fBiswalnum_l()\fR,
 201 \fBiswascii_l()\fR, \fBiswblank_l()\fR, \fBiswcntrl_l()\fR, \fBiswdigit_l()\fR,
 202 \fBiswgraph_l()\fR, \fBiswlower_l()\fR, \fBiswprint_l()\fR, \fBiswpunct_l()\fR,
 203 \fBiswspace_l()\fR, \fBiswupper_l()\fR, all behave identically to their
 204 counterparts without the '\fB_l\fR' suffix, but instead of operating on the
 205 current locale, they operate on the locale specified by \fIloc\fR.
 206 .LP
 207 The functions, \fBiswideogram()\fR, \fBiswnumber()\fR, \fBiswphonogram()\fR,
 208 \fBiswspecial()\fR, and \fBiswhexnumber()\fR, are respectively identical to
 209 \fBisideogram()\fR, \fBisnumber()\fR, \fBisphonogram()\fR, \fBisspecial()\fR,
 210 \fBiswxdigit()\fR respectively.  They are provided for compatability purposes.
 211 .LP
 212 In all cases, \fIwc\fR is a \fBwint_t\fR, the value of which must be a
 213 wide-character code corresponding to a valid character in the current locale or
 214 must equal the value of the macro \fBWEOF\fR. If the argument has any other
 215 values, the behavior is undefined.
 216 .sp
 217 .ne 2
 218 .na
 219 \fB\fBiswalpha(\fR\fIwc\fR\fB)\fR\fR
 220 .ad
 221 .RS 19n
 222 Tests whether \fIwc\fR is a wide-character code representing a character of
 223 class "alpha" in the program's current locale.
 224 .RE
 225 
 226 .sp
 227 .ne 2
 228 .na
 229 \fB\fBisenglish(\fR\fIwc\fR\fB)\fR\fR
 230 .ad
 231 .RS 19n
 232 Tests whether \fIwc\fR is a wide-character code representing an English
 233 language character, excluding \fBASCII\fR characters.
 234 .RE
 235 
 236 .sp
 237 .ne 2
 238 .na
 239 \fB\fBisideogram(\fR\fIwc\fR\fB)\fR\fR
 240 .ad
 241 .RS 19n
 242 Tests whether \fIwc\fR is a wide-character code representing an ideographic
 243 language character, excluding \fBASCII\fR characters.
 244 .RE
 245 
 246 .sp
 247 .ne 2
 248 .na
 249 \fB\fBisnumber(\fR\fIwc\fR\fB)\fR\fR
 250 .ad
 251 .RS 19n
 252 Tests whether \fIwc\fR is a wide-character code representing digit [0\(mi9],
 253 excluding \fBASCII\fR characters.
 254 .RE
 255 
 256 .sp
 257 .ne 2
 258 .na
 259 \fB\fBisphonogram(\fR\fIwc\fR\fB)\fR\fR
 260 .ad
 261 .RS 19n
 262 Tests whether \fIwc\fR is a wide-character code representing a phonetic
 263 language character, excluding \fBASCII\fR characters.
 264 .RE
 265 
 266 .sp
 267 .ne 2
 268 .na
 269 \fB\fBisspecial(\fR\fIwc\fR\fB)\fR\fR
 270 .ad
 271 .RS 19n
 272 Tests whether \fIwc\fR is a wide-character code representing a special language
 273 character, excluding \fBASCII\fR characters.
 274 .RE
 275 
 276 .sp
 277 .ne 2
 278 .na
 279 \fB\fBiswalnum(\fR\fIwc\fR\fB)\fR\fR
 280 .ad
 281 .RS 19n
 282 Tests whether \fIwc\fR is a wide-character code representing a character of
 283 class "alpha" or "digit" in the program's current locale.
 284 .RE
 285 
 286 .sp
 287 .ne 2
 288 .na
 289 \fB\fBiswascii(\fR\fIwc\fR\fB)\fR\fR
 290 .ad
 291 .RS 19n
 292 Tests whether \fIwc\fR is a wide-character code representing an \fBASCII\fR
 293 character.
 294 .RE
 295 
 296 .sp
 297 .ne 2
 298 .na
 299 \fB\fBiswblank(\fR\fIwc\fR\fB)\fR\fR
 300 .ad
 301 .RS 19n
 302 Tests whether \fIwc\fR is a wide-character code representing a character of
 303 class "blank" in the program's current locale. This function is not available
 304 to applications conforming to standards prior to SUSv3. See \fBstandards\fR(5).
 305 .RE
 306 
 307 .sp
 308 .ne 2
 309 .na
 310 \fB\fBiswlower(\fR\fIwc\fR\fB)\fR\fR
 311 .ad
 312 .RS 19n
 313 Tests whether \fIwc\fR is a wide-character code representing a character of
 314 class "lower" in the program's current locale.
 315 .RE
 316 
 317 .sp
 318 .ne 2
 319 .na
 320 \fB\fBiswcntrl(\fR\fIwc\fR\fB)\fR\fR
 321 .ad
 322 .RS 19n
 323 Tests whether \fIwc\fR is a wide-character code representing a character of
 324 class "cntrl" in the program's current locale.
 325 .RE
 326 
 327 .sp
 328 .ne 2
 329 .na
 330 \fB\fBiswdigit(\fR\fIwc\fR\fB)\fR\fR
 331 .ad
 332 .RS 19n
 333 Tests whether \fIwc\fR is a wide-character code representing a character of
 334 class "digit" in the program's current locale.
 335 .RE
 336 
 337 .sp
 338 .ne 2
 339 .na
 340 \fB\fBiswgraph(\fR\fIwc\fR\fB)\fR\fR
 341 .ad
 342 .RS 19n
 343 Tests whether \fIwc\fR is a wide-character code representing a character of
 344 class "graph" in the program's current locale.
 345 .RE
 346 
 347 .sp
 348 .ne 2
 349 .na
 350 \fB\fBiswprint(\fR\fIwc\fR\fB)\fR\fR
 351 .ad
 352 .RS 19n
 353 Tests whether \fIwc\fR is a wide-character code representing a character of
 354 class "print" in the program's current locale.
 355 .RE
 356 
 357 .sp
 358 .ne 2
 359 .na
 360 \fB\fBiswpunct(\fR\fIwc\fR\fB)\fR\fR
 361 .ad
 362 .RS 19n
 363 Tests whether \fIwc\fR is a wide-character code representing a character of
 364 class "punct" in the program's current locale.
 365 .RE
 366 
 367 .sp
 368 .ne 2
 369 .na
 370 \fB\fBiswspace(\fR\fIwc\fR\fB)\fR\fR
 371 .ad
 372 .RS 19n
 373 Tests whether \fIwc\fR is a wide-character code representing a character of
 374 class "space" in the program's current locale.
 375 .RE
 376 
 377 .sp
 378 .ne 2
 379 .na
 380 \fB\fBiswupper(\fR\fIwc\fR\fB)\fR\fR
 381 .ad
 382 .RS 19n
 383 Tests whether \fIwc\fR is a wide-character code representing a character of
 384 class "upper" in the program's current locale.
 385 .RE
 386 
 387 .sp
 388 .ne 2
 389 .na
 390 \fB\fBiswxdigit(\fR\fIwc\fR\fB)\fR\fR
 391 .ad
 392 .RS 19n
 393 Tests whether \fIwc\fR is a wide-character code representing a character of
 394 class "xdigit" in the program's current locale.
 395 .RE
 396 
 397 .SH ATTRIBUTES
 398 .sp
 399 .LP
 400 See \fBattributes\fR(5) for descriptions of the following attributes:
 401 .TS
 402 box;
 403 c | c
 404 l | l .
 405 ATTRIBUTE TYPE  ATTRIBUTE VALUE
 406 _
 407 CSI     Enabled
 408 _
 409 Interface Stability     See below.
 410 _
 411 MT-Level        MT-Safe
 412 .TE
 413 
 414 .LP
 415 The \fBiswalpha()\fR, \fBiswalnum()\fR, \fBiswblank()\fR, \fBiswcntrl()\fR,
 416 \fBiswdigit()\fR, \fBiswgraph()\fR, \fBiswlower()\fR, \fBiswprint()\fR,
 417 \fBiswpunct()\fR, \fBiswspace()\fR, \fBiswupper()\fR, and \fBiswxdigit()\fR
 418 functions are Standard.
 419 .LP
 420 The \fBiswalpha_l()\fR, \fBiswalnum_l()\fR, \fBiswblank_l()\fR, \fBiswcntrl_l()\fR,
 421 \fBiswdigit_l()\fR, \fBiswgraph_l()\fR, \fBiswlower_l()\fR, \fBiswprint_l()\fR,
 422 \fBiswpunct_l()\fR, \fBiswspace_l()\fR, and \fBiswupper_l()\fR
 423 functions are Standard.
 424 .SH SEE ALSO
 425 .LP
 426 \fBlocaledef\fR(1), \fBnewlocale\fR(3C),
 427 \fBsetlocale\fR(3C), \fBstdio\fR(3C), \fBuselocale\fR(3C),
 428 \fBascii\fR(5), \fBattributes\fR(5), \fBstandards\fR(5)