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UNICODE_CATEGORY_LOO(3)	    Courier Unicode Library    UNICODE_CATEGORY_LOO(3)

NAME
       unicode_category_lookup,	unicode_isalnum, unicode_isalpha,
       unicode_isblank,	unicode_isdigit, unicode_isgraph, unicode_islower,
       unicode_ispunct,	unicode_isspace, unicode_isupper - unicode character
       categorization

SYNOPSIS
       #include	<courier-unicode.h>

       uint32_t	unicode_category_lookup(char32_t c);

       int unicode_isalnum(char32_t c);

       int unicode_isalpha(char32_t c);

       int unicode_isblank(char32_t c);

       int unicode_isdigit(char32_t c);

       int unicode_isgraph(char32_t c);

       int unicode_islower(char32_t c);

       int unicode_ispunct(char32_t c);

       int unicode_isspace(char32_t c);

       int unicode_isupper(char32_t c);

DESCRIPTION
       unicode_category_lookup() looks up the unicode character's
       categorization[1].  unicode_category_lookup() returns a 32 bit value.
       The value's UNICODE_CATEGORY_1 bits specify the first level of the
       unicode character's category, with UNICODE_CATEGORY_2,
       UNICODE_CATEGORY_3, and UNICODE_CATEGORY_4 bits specifying the 2nd,
       3rd, and	4th level, if given. A value of	0 for each corresponding bit
       set indicates that no category is specified for this level, for this
       character; otherwise the	possible values	are defined in
       <courier-unicode.h>.

       The remaining functions implement comparable equivalents	of their
       non-unicode versions in the standard C library, as follows:

       unicode_isalnum()
	   Returns non-0 for all unicode_isalpha() or unicode_isdigit().

       unicode_isalpha()
	   Returns non-0 for all UNICODE_CATEGORY_1_LETTER.

       unicode_isblank()
	   Return non-0	for TAB, and all UNICODE_CATEGORY_2_SPACE.

       unicode_isdigit()
	   Returns non-0 for all UNICODE_CATEGORY_1_NUMBER |
	   UNICODE_CATEGORY_2_DIGIT, only (no third categories).

       unicode_isgraph()
	   Returns non-0 for all codepoints above SPACE	which are not
	   unicode_isspace().

       unicode_islower()
	   Returns non-0 for all unicode_isalpha() for which the character is
	   equal to unicode_lc(3) of itself.

       unicode_ispunct()
	   Returns non-0 for all UNICODE_CATEGORY_1_PUNCTUATION.

       unicode_isspace()
	   Returns non-0 for unicode_isblank() or for unicode characters with
	   linebreaking	properties of BK, CR, LF, NL, and SP.

       unicode_isupper()
	   Returns non-0 for all unicode_isalpha() for which the character is
	   equal to unicode_uc(3) of itself.

SEE ALSO
       courier-unicode(7), unicode_convert_tocase(3).

AUTHOR
       Sam Varshavchik
	   Author

NOTES
	1. unicode character's categorization
	   http://unicode.org/notes/tn36/

Courier	Unicode	Library		  03/11/2017	       UNICODE_CATEGORY_LOO(3)

NAME | SYNOPSIS | DESCRIPTION | SEE ALSO | AUTHOR | NOTES

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