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Annotation of 43BSDTahoe/man/man3/ctype.3, revision 1.1.1.1

1.1       root        1: .\"    @(#)ctype.3     6.4 (Berkeley) 5/12/86
                      2: .\"
                      3: .TH CTYPE 3  "May 12, 1986"
                      4: .AT 3
                      5: .SH NAME
                      6: isalpha, isupper, islower, isdigit, isxdigit, isalnum, isspace, ispunct, isprint, isgraph, iscntrl, isascii, toupper, tolower, toascii \- character classification macros
                      7: .SH SYNOPSIS
                      8: .B #include <ctype.h>
                      9: .PP
                     10: .B isalpha(c)
                     11: .PP
                     12: .B . . .
                     13: .SH DESCRIPTION
                     14: These macros classify ASCII-coded integer values
                     15: by table lookup.
                     16: Each is a predicate returning nonzero for true,
                     17: zero for false.
                     18: .I Isascii
                     19: and
                     20: .I toascii
                     21: are defined on all integer values; the rest
                     22: are defined only where 
                     23: .I isascii
                     24: is true and on the single non-ASCII value
                     25: EOF (see
                     26: .IR stdio (3S)).
                     27: .TP 15n
                     28: .I isalpha
                     29: .I c
                     30: is a letter
                     31: .TP
                     32: .I isupper
                     33: .I c
                     34: is an upper case letter
                     35: .TP
                     36: .I islower 
                     37: .I c
                     38: is a lower case letter
                     39: .TP
                     40: .I isdigit
                     41: .I c
                     42: is a digit
                     43: .TP
                     44: .I isxdigit
                     45: .I c
                     46: is a hex digit
                     47: .TP
                     48: .I isalnum
                     49: .I c
                     50: is an alphanumeric character
                     51: .TP
                     52: .I isspace
                     53: .I c
                     54: is a space, tab, carriage return, newline, vertical tab, or formfeed
                     55: .TP
                     56: .I ispunct
                     57: .I c
                     58: is a punctuation character (neither control nor alphanumeric)
                     59: .TP
                     60: .I isprint
                     61: .I c
                     62: is a printing character, code 040(8) (space) through 0176 (tilde)
                     63: .TP
                     64: .I isgraph
                     65: .I c
                     66: is a printing character, similar to
                     67: .I isprint
                     68: except false for space.
                     69: .TP
                     70: .I iscntrl
                     71: .I c
                     72: is a delete character (0177) or ordinary control character
                     73: (less than 040).
                     74: .TP
                     75: .I isascii
                     76: .I c
                     77: is an ASCII character, code less than 0200
                     78: .TP
                     79: .I tolower
                     80: .I c
                     81: is converted to lower case.  Return value is undefined if not 
                     82: .I isupper(c).
                     83: .TP
                     84: .I toupper
                     85: .I c
                     86: is converted to upper case.  Return value is undefined if not 
                     87: .I islower(c).
                     88: .TP
                     89: .I toascii
                     90: .I c
                     91: is converted to be a valid ascii character.
                     92: .SH "SEE ALSO"
                     93: ascii(7)

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