xref: /dragonfly/lib/libc/locale/isprint.3 (revision c66c7e2f)

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.\"     @(#)isprint.3	8.1 (Berkeley) 6/4/93
.\" $FreeBSD: head/lib/libc/locale/isprint.3 233992 2012-04-07 09:05:30Z joel $
.\"
.Dd December 25, 2013
.Dt ISPRINT 3
.Os
.Sh NAME
.Nm isprint ,
.Nm isprint_l
.Nd printing character test (space character inclusive)
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In ctype.h
.Ft int
.Fn isprint "int c"
.Ft int
.Fn isprint_l "int c" "locale_t locale"
.Sh DESCRIPTION
The
.Fn isprint
and
.Fn isprint_l
functions test for any printing character, including space
.Pq Ql "\ " .
The value of the argument must be representable as an
.Vt "unsigned char"
or the value of
.Dv EOF .
.Pp
In the ASCII character set, this includes the following characters
(with their numeric values shown in octal):
.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__
.It "\&040\ sp" Ta "041\ ``!''" Ta "042\ ``""''" Ta "043\ ``#''" Ta "044\ ``$''"
.It "\&045\ ``%''" Ta "046\ ``&''" Ta "047\ ``'''" Ta "050\ ``(''" Ta "051\ ``)''"
.It "\&052\ ``*''" Ta "053\ ``+''" Ta "054\ ``,''" Ta "055\ ``-''" Ta "056\ ``.''"
.It "\&057\ ``/''" Ta "060\ ``0''" Ta "061\ ``1''" Ta "062\ ``2''" Ta "063\ ``3''"
.It "\&064\ ``4''" Ta "065\ ``5''" Ta "066\ ``6''" Ta "067\ ``7''" Ta "070\ ``8''"
.It "\&071\ ``9''" Ta "072\ ``:''" Ta "073\ ``;''" Ta "074\ ``<''" Ta "075\ ``=''"
.It "\&076\ ``>''" Ta "077\ ``?''" Ta "100\ ``@''" Ta "101\ ``A''" Ta "102\ ``B''"
.It "\&103\ ``C''" Ta "104\ ``D''" Ta "105\ ``E''" Ta "106\ ``F''" Ta "107\ ``G''"
.It "\&110\ ``H''" Ta "111\ ``I''" Ta "112\ ``J''" Ta "113\ ``K''" Ta "114\ ``L''"
.It "\&115\ ``M''" Ta "116\ ``N''" Ta "117\ ``O''" Ta "120\ ``P''" Ta "121\ ``Q''"
.It "\&122\ ``R''" Ta "123\ ``S''" Ta "124\ ``T''" Ta "125\ ``U''" Ta "126\ ``V''"
.It "\&127\ ``W''" Ta "130\ ``X''" Ta "131\ ``Y''" Ta "132\ ``Z''" Ta "133\ ``[''"
.It "\&134\ ``\e\|''" Ta "135\ ``]''" Ta "136\ ``^''" Ta "137\ ``_''" Ta "140\ ```''"
.It "\&141\ ``a''" Ta "142\ ``b''" Ta "143\ ``c''" Ta "144\ ``d''" Ta "145\ ``e''"
.It "\&146\ ``f''" Ta "147\ ``g''" Ta "150\ ``h''" Ta "151\ ``i''" Ta "152\ ``j''"
.It "\&153\ ``k''" Ta "154\ ``l''" Ta "155\ ``m''" Ta "156\ ``n''" Ta "157\ ``o''"
.It "\&160\ ``p''" Ta "161\ ``q''" Ta "162\ ``r''" Ta "163\ ``s''" Ta "164\ ``t''"
.It "\&165\ ``u''" Ta "166\ ``v''" Ta "167\ ``w''" Ta "170\ ``x''" Ta "171\ ``y''"
.It "\&172\ ``z''" Ta "173\ ``{''" Ta "174\ ``|''" Ta "175\ ``}''" Ta "176\ ``~''"
.El
.Pp
The _l-suffixed version takes an explicit
.Fa locale
argument, whereas the
non-suffixed version uses the current global or per-thread locale.
.Sh RETURN VALUES
The
.Fn isprint
and
.Fn isprint_l
functions return zero if the character tests false and
returns non-zero if the character tests true.
.Sh COMPATIBILITY
The
.Bx 4.4
extension of accepting arguments outside of the range of the
.Vt "unsigned char"
type in locales with large character sets is considered obsolete
and may not be supported in future releases.
The
.Fn iswprint
and
.Fn iswprint_l
functions should be used instead.
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr ctype_l 3 ,
.Xr iswprint 3 ,
.Xr iswprint_l 3 ,
.Xr xlocale 3 ,
.Xr ascii 7
.Sh STANDARDS
The
.Fn isprint
function conforms to
.St -isoC .
The
.Fn isprint_l
function conforms to
.St -p1003.1-2008 .