GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.2 |
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wctype(3) |
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wctype − wide character classification
#include <wctype.h>
wctype_t wctype(const char *name);
The wctype_t type represents a property which a wide character may or may not have. In other words, it represents a class of wide characters. This type’s nature is implementation dependent, but the special value (wctype_t)0 denotes an invalid property. Nonzero wctype_t values can be passed to the iswctype() function to actually test whether a given wide character has the property.
The
wctype() function returns a property, given by its
name. The set of valid names depends on the LC_CTYPE
category of the current locale, but the following names are
valid in all locales.
"alnum" − realizes the isalnum()
classification function
"alpha" − realizes the isalpha()
classification function
"blank" − realizes the isblank()
classification function
"cntrl" − realizes the iscntrl()
classification function
"digit" − realizes the isdigit()
classification function
"graph" − realizes the isgraph()
classification function
"lower" − realizes the islower()
classification function
"print" − realizes the isprint()
classification function
"punct" − realizes the ispunct()
classification function
"space" − realizes the isspace()
classification function
"upper" − realizes the isupper()
classification function
"xdigit" − realizes the isxdigit()
classification function
The wctype() function returns a property descriptor if the name is valid. Otherwise it returns (wctype_t)0.
C99.
iswctype(3)
The behaviour of wctype() depends on the LC_CTYPE category of the current locale.
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wctype(3) | |