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Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux	RedHat 9.0 (Shrike)
	wctype(3)

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WCTYPE

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
CONFORMING TO
SEE ALSO
NOTES

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NAME

wctype − wide character classification

SYNOPSIS

#include <wctype.h>

wctype_t wctype(const char *name);

DESCRIPTION

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

RETURN VALUE

The wctype function returns a property descriptor if the name is valid. Otherwise it returns (wctype_t)0.

CONFORMING TO

ISO/ANSI C, UNIX98

SEE ALSO

iswctype(3)

NOTES

The behaviour of wctype depends on the LC_CTYPE category of the current locale.

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wctype(3)