wctype(3W)                       DG/UX 5.4.2                      wctype(3W)


NAME
       wctype: iswalpha, iswupper, iswlower, iswdigit, iswxdigit, iswalnum,
       iswspace, iswpunct, iswprint, iswgraph, iswcntrl, iswascii,
       isphonogram, isideogram, isenglish, isnumber, isspecial - classify
       ASCII and supplemetary code set characters

SYNOPSIS
       #include <ctype.h>
       #include <widec.h>
       #include <wctype.h>
       int iswalpha(wchar_t c);
       ...

DESCRIPTION
       These functions classify character-coded wchar_t values by table
       lookup.  Each is a predicate returning nonzero for true, zero for
       false.  The lookup table is generated by wchrtbl(1M).  Each of these
       functions operates on both ASCII and supplementary code sets unless
       otherwise indicated.


       iswalpha(c)       c is an English letter.

       iswupper(c)       c is an English upper-case letter.

       iswlower(c)       c is an English lower-case letter.

       iswdigit(c)       c is a digit [0-9].

       iswxdigit(c)      c is a hexadecimal digit [0-9], [A-F] or [a-f].

       iswalnum(c)       c is an alphanumeric (letter or digit).

       iswspace(c)       c is a space character or a tab, carriage return,
                         new line, vertical tab or form-feed.

       iswpunct(c)       c is a punctuation character (neither control nor
                         alphanumeric).

       iswprint(c)       c is a printing character including space.

       iswgraph(c)       c is a printing character, like iswprint() except
                         false for space.

       iswcntrl(c)       c is a delete character (0177), an ordinary control
                         character (less than 040) or other control
                         character of a supplementary code set.

       iswascii(c)       c is an ASCII character code less than 0200.

       isphonogram(c)    c is a phonogram in a supplementary code set.

       isideogram(c)     c is an ideogram in a supplementary code set.




Licensed material--property of copyright holder(s)                         1

wctype(3W)                       DG/UX 5.4.2                      wctype(3W)


       isenglish(c)      c is an English letters in a supplementary code
                         set.

       isnumber(c)       c is a digit of a supplementary code set.

       isspecial(c)      c is a special character in a supplementary code
                         set.

SEE ALSO
       wchrtbl(1M), ctype(3C).















































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