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1 '\" te
2 .\" Copyright 2014 Garrett D'Amore <garrett@damore.org>
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11 .TH ISWALPHA 3C "April 9, 2016"
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
22 .SH SYNOPSIS
23 .LP
24 .nf
25 #include <wchar.h>
26 #include <wctype.h>
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>
190 \fBint\fR \fBiswhexnumber\fR(\fBwint_t\fR \fIwc\fR, \fBlocale_t\fR \fIloc\fR);
191 .fi
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 compatibility 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
397 .SH ATTRIBUTES
398 .LP
399 See \fBattributes\fR(5) for descriptions of the following attributes:
400 .TS
401 box;
402 c | c
403 l | l .
404 ATTRIBUTE TYPE ATTRIBUTE VALUE
405 _
406 CSI Enabled
407 _
408 Interface Stability See below.
409 _
410 MT-Level MT-Safe
411 .TE
413 .LP
414 The \fBiswalpha()\fR, \fBiswalnum()\fR, \fBiswblank()\fR, \fBiswcntrl()\fR,
415 \fBiswdigit()\fR, \fBiswgraph()\fR, \fBiswlower()\fR, \fBiswprint()\fR,
416 \fBiswpunct()\fR, \fBiswspace()\fR, \fBiswupper()\fR, and \fBiswxdigit()\fR
417 functions are Standard.
418 .LP
419 The \fBiswalpha_l()\fR, \fBiswalnum_l()\fR, \fBiswblank_l()\fR, \fBiswcntrl_l()\fR,
420 \fBiswdigit_l()\fR, \fBiswgraph_l()\fR, \fBiswlower_l()\fR, \fBiswprint_l()\fR,
421 \fBiswpunct_l()\fR, \fBiswspace_l()\fR, and \fBiswupper_l()\fR
422 functions are Standard.
423 .SH SEE ALSO
424 .LP
425 \fBlocaledef\fR(1), \fBnewlocale\fR(3C),
426 \fBsetlocale\fR(3C), \fBstdio\fR(3C), \fBuselocale\fR(3C),
427 \fBascii\fR(5), \fBattributes\fR(5), \fBstandards\fR(5)