freebsd-dev/lib/libc/locale/isgraph.3

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.Dd August 21, 2004
.Dt ISGRAPH 3
.Os
.Sh NAME
.Nm isgraph
.Nd printing character test (space character exclusive)
.Sh LIBRARY
.Lb libc
.Sh SYNOPSIS
.In ctype.h
.Ft int
.Fn isgraph "int c"
.Sh DESCRIPTION
The
.Fn isgraph
function tests for any printing character except space
.Pq Ql "\ "
and other
locale specific space-like characters.
For single C
.Va char Ns s
locales (see
.Xr multibyte 3 )
the value of the argument is
representable as an
.Li unsigned char
or the value of
.Dv EOF .
In the ASCII character set, this includes the following characters
(with their numeric values shown in octal):
.Pp
.Bl -column \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__ \&000_``0''__
.It "\&041\ ``!'' \t042\ ``""'' \t043\ ``#'' \t044\ ``$'' \t045\ ``%''"
.It "\&046\ ``&'' \t047\ ``''' \t050\ ``('' \t051\ ``)'' \t052\ ``*''"
.It "\&053\ ``+'' \t054\ ``,'' \t055\ ``-'' \t056\ ``.'' \t057\ ``/''"
.It "\&060\ ``0'' \t061\ ``1'' \t062\ ``2'' \t063\ ``3'' \t064\ ``4''"
.It "\&065\ ``5'' \t066\ ``6'' \t067\ ``7'' \t070\ ``8'' \t071\ ``9''"
.It "\&072\ ``:'' \t073\ ``;'' \t074\ ``<'' \t075\ ``='' \t076\ ``>''"
.It "\&077\ ``?'' \t100\ ``@'' \t101\ ``A'' \t102\ ``B'' \t103\ ``C''"
.It "\&104\ ``D'' \t105\ ``E'' \t106\ ``F'' \t107\ ``G'' \t110\ ``H''"
.It "\&111\ ``I'' \t112\ ``J'' \t113\ ``K'' \t114\ ``L'' \t115\ ``M''"
.It "\&116\ ``N'' \t117\ ``O'' \t120\ ``P'' \t121\ ``Q'' \t122\ ``R''"
.It "\&123\ ``S'' \t124\ ``T'' \t125\ ``U'' \t126\ ``V'' \t127\ ``W''"
.It "\&130\ ``X'' \t131\ ``Y'' \t132\ ``Z'' \t133\ ``['' \t134\ ``\e\|''"
.It "\&135\ ``]'' \t136\ ``^'' \t137\ ``_'' \t140\ ```'' \t141\ ``a''"
.It "\&142\ ``b'' \t143\ ``c'' \t144\ ``d'' \t145\ ``e'' \t146\ ``f''"
.It "\&147\ ``g'' \t150\ ``h'' \t151\ ``i'' \t152\ ``j'' \t153\ ``k''"
.It "\&154\ ``l'' \t155\ ``m'' \t156\ ``n'' \t157\ ``o'' \t160\ ``p''"
.It "\&161\ ``q'' \t162\ ``r'' \t163\ ``s'' \t164\ ``t'' \t165\ ``u''"
.It "\&166\ ``v'' \t167\ ``w'' \t170\ ``x'' \t171\ ``y'' \t172\ ``z''"
.It "\&173\ ``{'' \t174\ ``|'' \t175\ ``}'' \t176\ ``~''"
.El
.Sh RETURN VALUES
The
.Fn isgraph
function returns 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 iswgraph
function should be used instead.
.Sh SEE ALSO
.Xr ctype 3 ,
.Xr iswgraph 3 ,
.Xr multibyte 3 ,
.Xr ascii 7
.Sh STANDARDS
The
.Fn isgraph
function conforms to
.St -isoC .